diff --git a/apps/cic-eth/.coveragerc b/apps/cic-eth/.coveragerc
new file mode 100644
index 00000000..63f983d6
--- /dev/null
+++ b/apps/cic-eth/.coveragerc
@@ -0,0 +1,7 @@
+[report]
+omit =
+ .venv/*
+ scripts/*
+ cic_eth/db/migrations/*
+ cic_eth/sync/head.py
+ cic_eth/sync/mempool.py
diff --git a/apps/cic-eth/.envrc_dev_example b/apps/cic-eth/.envrc_dev_example
new file mode 100644
index 00000000..52999ec5
--- /dev/null
+++ b/apps/cic-eth/.envrc_dev_example
@@ -0,0 +1,12 @@
+set -a
+CICTEST_DEV_KEYS_PATH=
+CICTEST_DEV_SIGNER_PASSWORD=
+
+CICTEST_SIGNER_SECRET=deadbeef
+CICTEST_SIGNER_DATABASE=signer_test
+
+CICTEST_PIP_EXTRA_INDEX_HOST=
+CICTEST_PIP_EXTRA_INDEX_PORT=
+CICTEST_PIP_EXTRA_INDEX_PATH=
+CICTEST_PIP_EXTRA_INDEX_PROTO=
+set +a
diff --git a/apps/cic-eth/.envrc_example b/apps/cic-eth/.envrc_example
new file mode 100644
index 00000000..d803e0cc
--- /dev/null
+++ b/apps/cic-eth/.envrc_example
@@ -0,0 +1,21 @@
+set -a
+CICTEST_BANCOR_DIR=
+CICTEST_BANCOR_REGISTRY_ADDRESS=
+
+CICTEST_ETH_WS_PROVIDER='ws://localhost:8546'
+CICTEST_ETH_HTTP_PROVIDER='http://localhost:8545'
+CICTEST_ETH_PROVIDER=$CIC_ETH_HTTP_PROVIDER
+CICTEST_ETH_CHAIN_ID=8995
+CICTEST_ETH_GAS_PROVIDER_ADDRESS=
+
+CICTEST_DATABASE_ENGINE=postgresql
+CICTEST_DATABASE_DRIVER=psycopg2
+CICTEST_DATABASE_NAME=cic-eth-test
+CICTEST_DATABASE_USER=postgres
+CICTEST_DATABASE_PASSWORD=
+CICTEST_DATABASE_HOST=localhost
+CICTEST_DATABASE_PORT=5432
+
+CICTEST_CELERY_BROKER_URL=
+set +a
+. .envrc_dev_example
diff --git a/apps/cic-eth/.gitignore b/apps/cic-eth/.gitignore
new file mode 100644
index 00000000..dab8b439
--- /dev/null
+++ b/apps/cic-eth/.gitignore
@@ -0,0 +1,8 @@
+.envrc
+.envrc_dev
+.venv
+__pycache__
+*.pyc
+_build
+doc/**/*.png
+doc/**/html
diff --git a/apps/cic-eth/.gitlab-ci.yml b/apps/cic-eth/.gitlab-ci.yml
new file mode 100644
index 00000000..428002b8
--- /dev/null
+++ b/apps/cic-eth/.gitlab-ci.yml
@@ -0,0 +1,11 @@
+.contract-migration-changes-target:
+ rules:
+ - changes:
+ - $CONTEXT/*
+
+build-cic-eth:
+ extends:
+ - .contract-migration-changes-target
+ - .py-build
+ variables:
+ CONTEXT: apps/cic-eth
\ No newline at end of file
diff --git a/apps/cic-eth/CHANGELOG b/apps/cic-eth/CHANGELOG
new file mode 100644
index 00000000..266e4814
--- /dev/null
+++ b/apps/cic-eth/CHANGELOG
@@ -0,0 +1,114 @@
+- 0.10.0
+ * Move api to subpackage
+ * Add version identifier to package top level
+ * Add gas price proxy middleware
+ * Make initial queue send status inactive, introduce new status READYSEND for initial send attempt
+ * Add maintenance mode locks, and automatic account lock when node rejects to send a tx to network
+ * Add nonce repair tool
+ * Add tx resend admin api
+ * Add pure tcp and redis task api callbacks
+ * Add optional outgoing log status tracing
+ * Add lock lister and lock/unlock cli tool
+- 0.9.0
+ * Require chain spec parameter in api
+ * Pass chain spec between tasks
+- 0.8.9
+ * Change executable argument flag names for contract keys and chain spec
+ * Take over auxiliary code from cic-registry
+ * Use cic-bancor package for bancor related code
+- 0.8.8
+ * Implement transaction granularity for syncers
+- 0.8.7
+ * Add registration option on api account creation
+- 0.8.6
+ * Add persistent account role index
+- 0.8.5
+ * Add refill gas api call
+- 0.8.4
+ * Add settable abi dir to executables
+- 0.8.3
+ * Add faucet task, tests
+ * Add retry tx on incoming gas refill trigger
+ * Add transfer approval task, tests
+- 0.8.2
+ * Upgrade cic-registry
+ * Fix broken history syncer test
+- 0.8.1
+ * Upgrade dependencies
+- 0.8.0
+ * Rehabilitate tasker script
+ * Move tasker and manager scripts to console scripts setup entrypoints
+- 0.7.1
+ * Make tx hash optional in check-gas-and-send signature builder
+- 0.7.0
+ * Define callback tasks in API with qualified celery task strings
+- 0.6.4
+ * Add mock tx cache data generator
+ * Change sql tx cache value fields to bigint
+- 0.6.3
+ * Remove CIC-cache related code
+- 0.6.2
+ * Rename tx_number member of TxCache object to tx_index
+- 0.6.1
+ * Add postgres-only stored procedures for per-address balances and transactions queries
+- 0.6.0
+ * Configurable celery in worker script
+- 0.5.8
+ * Upgrade crypto-dev-signer (now uses SQLAlchemy)
+ * Use sql backend db for tests
+ * Use filesystem backend for celery tests
+- 0.5.7
+ * Remove environment variable dependencies in tests
+ * Update dependencies
+- 0.5.6
+ * Upgrade signer
+- 0.5.5
+ * Implement env-prefix switch in scripts
+- 0.5.4
+ * Add ipc path parameter to web3ext instantiation
+- 0.5.3
+ * Add alembic migration script customizable with confini
+- 0.5.2
+ * Upgrade crypto-dev-signer
+- 0.5.1
+ * Move tasker back to scripts
+- 0.5.0
+ * Create Api object, persists callback and queue across methods
+- 0.4.1
+ * Add docstrings
+ * Rehabilitate tests
+ * Correctly scope db sessions in tasks
+ * Add API for create account
+- 0.4.0
+ * Use config files instead of environment for cic-dev-tasker
+- 0.3.0
+ * Add queues
+- 0.2.0
+ * Add documentation
+ * Rename cic-dev-syncer to cic-dev-manager
+ * Rename cic-dev-track to cic-dev-tracker
+- 0.1.1
+ * Remove cic_eth.eth from packaging
+- 0.1.0
+ * Extract tx factory object controlling nonce and gasprice
+ * Fix bug from adapting method call to EthereumTester
+ * Package api for external use
+ * Add missing otx saves for transactions
+- 0.0.6
+ * Add missing "approve zero" for convert in monitor queue
+- 0.0.5
+ * Add customized eth_tester replacement for active web3 backend
+- 0.0.4
+ * Add api caller callback for completed tasks
+ * Add semaphore for web3 calls
+ * Add missing subtasks in bancor convert chain
+- 0.0.3
+ * Separate out registry and sempo to external packages
+- 0.0.2
+ * Add erc20 transfer task
+ * Add transaction queue tasker and database
+- 0.0.1
+ * Add registry
+ * Add bancor token lookup and convert tasks
+ * Add sempo token register tasks
+ * Add environment variable docs
diff --git a/apps/cic-eth/LICENSE.txt b/apps/cic-eth/LICENSE.txt
new file mode 100644
index 00000000..f288702d
--- /dev/null
+++ b/apps/cic-eth/LICENSE.txt
@@ -0,0 +1,674 @@
+ GNU GENERAL PUBLIC LICENSE
+ Version 3, 29 June 2007
+
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+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
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+any other work released this way by its authors. You can apply it to
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+available, or (2) arrange to deprive yourself of the benefit of the
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+consistent with the requirements of this License, to extend the patent
+license to downstream recipients. "Knowingly relying" means you have
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+
+ Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+ 12. No Surrender of Others' Freedom.
+
+ If conditions are imposed on you (whether by court order, agreement or
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+to collect a royalty for further conveying from those to whom you convey
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+
+ 13. Use with the GNU Affero General Public License.
+
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+
+ 14. Revised Versions of this License.
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+address new problems or concerns.
+
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+Foundation. If the Program does not specify a version number of the
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+
+ If the Program specifies that a proxy can decide which future
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+to choose that version for the Program.
+
+ Later license versions may give you additional or different
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+
+ 15. Disclaimer of Warranty.
+
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+SUCH DAMAGES.
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+ 17. Interpretation of Sections 15 and 16.
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+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+ END OF TERMS AND CONDITIONS
+
+ How to Apply These Terms to Your New Programs
+
+ If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
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+to attach them to the start of each source file to most effectively
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+
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+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
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+Also add information on how to contact you by electronic and paper mail.
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+ This is free software, and you are welcome to redistribute it
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+
+The hypothetical commands `show w' and `show c' should show the appropriate
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+might be different; for a GUI interface, you would use an "about box".
+
+ You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+.
+
+ The GNU General Public License does not permit incorporating your program
+into proprietary programs. If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library. If this is what you want to do, use the GNU Lesser General
+Public License instead of this License. But first, please read
+.
diff --git a/apps/cic-eth/cic_eth/__init__.py b/apps/cic-eth/cic_eth/__init__.py
new file mode 100644
index 00000000..adc978e9
--- /dev/null
+++ b/apps/cic-eth/cic_eth/__init__.py
@@ -0,0 +1,10 @@
+"""Celery tasks API for CIC EVM and web3 JSON-RPC interactions
+
+.. moduleauthor: Louis Holbrook
+
+"""
+
+from .version import (
+ version,
+ version_string,
+ )
diff --git a/apps/cic-eth/cic_eth/admin/ctrl.py b/apps/cic-eth/cic_eth/admin/ctrl.py
new file mode 100644
index 00000000..6b28d86d
--- /dev/null
+++ b/apps/cic-eth/cic_eth/admin/ctrl.py
@@ -0,0 +1,125 @@
+# standard imports
+import datetime
+import logging
+
+# third-party imports
+import celery
+from cic_registry import zero_address
+
+# local imports
+from cic_eth.db.enum import LockEnum
+from cic_eth.db.models.lock import Lock
+from cic_eth.error import LockedError
+
+celery_app = celery.current_app
+logg = logging.getLogger()
+
+@celery_app.task()
+def lock(chained_input, chain_str, address=zero_address, flags=LockEnum.ALL, tx_hash=None):
+ """Task wrapper to set arbitrary locks
+
+ :param chain_str: Chain spec string representation
+ :type chain_str: str
+ :param flags: Flags to set
+ :type flags: number
+ :param address: Ethereum address
+ :type address: str, 0x-hex
+ :returns: New lock state for address
+ :rtype: number
+ """
+ r = Lock.set(chain_str, flags, address=address, tx_hash=tx_hash)
+ logg.debug('Locked {} for {}, flag now {}'.format(flags, address, r))
+ return chained_input
+
+
+@celery_app.task()
+def unlock(chained_input, chain_str, address=zero_address, flags=LockEnum.ALL):
+ """Task wrapper to reset arbitrary locks
+
+ :param chain_str: Chain spec string representation
+ :type chain_str: str
+ :param flags: Flags to set
+ :type flags: number
+ :param address: Ethereum address
+ :type address: str, 0x-hex
+ :returns: New lock state for address
+ :rtype: number
+ """
+ r = Lock.reset(chain_str, flags, address=address)
+ logg.debug('Unlocked {} for {}, flag now {}'.format(flags, address, r))
+ return chained_input
+
+
+@celery_app.task()
+def lock_send(chained_input, chain_str, address=zero_address, tx_hash=None):
+ """Task wrapper to set send lock
+
+ :param chain_str: Chain spec string representation
+ :type chain_str: str
+ :param address: Ethereum address
+ :type address: str, 0x-hex
+ :returns: New lock state for address
+ :rtype: number
+ """
+ r = Lock.set(chain_str, LockEnum.SEND, address=address, tx_hash=tx_hash)
+ logg.debug('Send locked for {}, flag now {}'.format(address, r))
+ return chained_input
+
+
+@celery_app.task()
+def unlock_send(chained_input, chain_str, address=zero_address):
+ """Task wrapper to reset send lock
+
+ :param chain_str: Chain spec string representation
+ :type chain_str: str
+ :param address: Ethereum address
+ :type address: str, 0x-hex
+ :returns: New lock state for address
+ :rtype: number
+ """
+ r = Lock.reset(chain_str, LockEnum.SEND, address=address)
+ logg.debug('Send unlocked for {}, flag now {}'.format(address, r))
+ return chained_input
+
+
+@celery_app.task()
+def lock_queue(chained_input, chain_str, address=zero_address, tx_hash=None):
+ """Task wrapper to set queue direct lock
+
+ :param chain_str: Chain spec string representation
+ :type chain_str: str
+ :param address: Ethereum address
+ :type address: str, 0x-hex
+ :returns: New lock state for address
+ :rtype: number
+ """
+ r = Lock.set(chain_str, LockEnum.QUEUE, address=address, tx_hash=tx_hash)
+ logg.debug('Queue direct locked for {}, flag now {}'.format(address, r))
+ return chained_input
+
+
+@celery_app.task()
+def unlock_queue(chained_input, chain_str, address=zero_address):
+ """Task wrapper to reset queue direct lock
+
+ :param chain_str: Chain spec string representation
+ :type chain_str: str
+ :param address: Ethereum address
+ :type address: str, 0x-hex
+ :returns: New lock state for address
+ :rtype: number
+ """
+ r = Lock.reset(chain_str, LockEnum.QUEUE, address=address)
+ logg.debug('Queue direct unlocked for {}, flag now {}'.format(address, r))
+ return chained_input
+
+
+@celery_app.task()
+def check_lock(chained_input, chain_str, lock_flags, address=None):
+ r = Lock.check(chain_str, lock_flags, address=zero_address)
+ if address != None:
+ r |= Lock.check(chain_str, lock_flags, address=address)
+ if r > 0:
+ logg.debug('lock check {} has match {} for {}'.format(lock_flags, r, address))
+ raise LockedError(r)
+ return chained_input
diff --git a/apps/cic-eth/cic_eth/admin/debug.py b/apps/cic-eth/cic_eth/admin/debug.py
new file mode 100644
index 00000000..575be543
--- /dev/null
+++ b/apps/cic-eth/cic_eth/admin/debug.py
@@ -0,0 +1,12 @@
+import datetime
+
+import celery
+
+celery_app = celery.current_app
+
+
+@celery_app.task()
+def out_tmp(tag, txt):
+ f = open('/tmp/err.{}.txt'.format(tag), "w")
+ f.write(txt)
+ f.close()
diff --git a/apps/cic-eth/cic_eth/admin/nonce.py b/apps/cic-eth/cic_eth/admin/nonce.py
new file mode 100644
index 00000000..c475f7b3
--- /dev/null
+++ b/apps/cic-eth/cic_eth/admin/nonce.py
@@ -0,0 +1,128 @@
+# standard imports
+import logging
+
+# third-party imports
+import celery
+from cic_registry.chain import ChainSpec
+
+# local imports
+from cic_eth.db.models.base import SessionBase
+from cic_eth.db.models.otx import Otx
+from cic_eth.db.models.tx import TxCache
+from cic_eth.db.models.nonce import Nonce
+from cic_eth.admin.ctrl import lock_send
+from cic_eth.admin.ctrl import unlock_send
+from cic_eth.admin.ctrl import lock_queue
+from cic_eth.admin.ctrl import unlock_queue
+from cic_eth.queue.tx import get_tx
+from cic_eth.queue.tx import set_cancel
+from cic_eth.queue.tx import create as queue_create
+from cic_eth.eth.util import unpack_signed_raw_tx
+from cic_eth.eth.task import sign_tx
+from cic_eth.eth.task import create_check_gas_and_send_task
+
+celery_app = celery.current_app
+logg = logging.getLogger()
+
+
+@celery_app.task(bind=True)
+def shift_nonce(self, chain_str, tx_hash_orig_hex, delta=1):
+ """Shift all transactions with nonces higher than the offset by the provided position delta.
+
+ Transactions who are replaced by transactions that move nonces will be marked as OVERRIDDEN.
+
+ :param chainstr: Chain specification string representation
+ :type chainstr: str
+ :param tx_hash_orig_hex: Transaction hash to resolve to sender and nonce to use as shift offset
+ :type tx_hash_orig_hex: str, 0x-hex
+ :param delta: Amount
+ """
+ queue = None
+ try:
+ queue = self.request.delivery_info.get('routing_key')
+ except AttributeError:
+ pass
+
+ chain_spec = ChainSpec.from_chain_str(chain_str)
+ tx_brief = get_tx(tx_hash_orig_hex)
+ tx_raw = bytes.fromhex(tx_brief['signed_tx'][2:])
+ tx = unpack_signed_raw_tx(tx_raw, chain_spec.chain_id())
+ nonce = tx_brief['nonce']
+ address = tx['from']
+
+ logg.debug('shifting nonce {} position(s) for address {}, offset {}'.format(delta, address, nonce))
+
+ lock_queue(None, chain_str, address)
+ lock_send(None, chain_str, address)
+
+ session = SessionBase.create_session()
+ q = session.query(Otx)
+ q = q.join(TxCache)
+ q = q.filter(TxCache.sender==address)
+ q = q.filter(Otx.nonce>=nonce+delta)
+ q = q.order_by(Otx.nonce.asc())
+ otxs = q.all()
+
+ tx_hashes = []
+ txs = []
+ for otx in otxs:
+ tx_raw = bytes.fromhex(otx.signed_tx[2:])
+ tx_new = unpack_signed_raw_tx(tx_raw, chain_spec.chain_id())
+
+ tx_previous_hash_hex = tx_new['hash']
+ tx_previous_nonce = tx_new['nonce']
+
+ del(tx_new['hash'])
+ del(tx_new['hash_unsigned'])
+ tx_new['nonce'] -= delta
+
+ (tx_hash_hex, tx_signed_raw_hex) = sign_tx(tx_new, chain_str)
+ logg.debug('tx {} -> {} nonce {} -> {}'.format(tx_previous_hash_hex, tx_hash_hex, tx_previous_nonce, tx_new['nonce']))
+
+ otx = Otx(
+ nonce=tx_new['nonce'],
+ address=tx_new['from'],
+ tx_hash=tx_hash_hex,
+ signed_tx=tx_signed_raw_hex,
+ )
+ session.add(otx)
+ session.commit()
+
+ # TODO: cancel all first, then replace. Otherwise we risk two non-locked states for two different nonces.
+ set_cancel(tx_previous_hash_hex, True)
+
+ TxCache.clone(tx_previous_hash_hex, tx_hash_hex)
+
+ tx_hashes.append(tx_hash_hex)
+ txs.append(tx_signed_raw_hex)
+
+ session.close()
+
+ s = create_check_gas_and_send_task(
+ txs,
+ chain_str,
+ tx_new['from'],
+ tx_new['gas'],
+ tx_hashes,
+ queue,
+ )
+
+ s_unlock_send = celery.signature(
+ 'cic_eth.admin.ctrl.unlock_send',
+ [
+ chain_str,
+ tx_new['from'],
+ ],
+ queue=queue,
+ )
+ s_unlock_direct = celery.signature(
+ 'cic_eth.admin.ctrl.unlock_queue',
+ [
+ chain_str,
+ tx_new['from'],
+ ],
+ queue=queue,
+ )
+ s_unlocks = celery.group(s_unlock_send, s_unlock_direct)
+ s.link(s_unlocks)
+ s.apply_async()
diff --git a/apps/cic-eth/cic_eth/api/__init__.py b/apps/cic-eth/cic_eth/api/__init__.py
new file mode 100644
index 00000000..ce747f4f
--- /dev/null
+++ b/apps/cic-eth/cic_eth/api/__init__.py
@@ -0,0 +1,8 @@
+"""Celery tasks API for CIC EVM and web3 JSON-RPC interactions
+
+.. moduleauthor: Louis Holbrook
+
+"""
+
+from .api_task import Api
+from .api_admin import AdminApi
diff --git a/apps/cic-eth/cic_eth/api/api_admin.py b/apps/cic-eth/cic_eth/api/api_admin.py
new file mode 100644
index 00000000..aec9cd47
--- /dev/null
+++ b/apps/cic-eth/cic_eth/api/api_admin.py
@@ -0,0 +1,445 @@
+# standard imports
+import logging
+
+# third-party imports
+import celery
+import web3
+from cic_registry import zero_address
+from cic_registry import zero_content
+from cic_registry import CICRegistry
+from crypto_dev_signer.eth.web3ext import Web3 as Web3Ext
+from cic_registry.error import UnknownContractError
+
+# local imports
+from cic_eth.db.models.base import SessionBase
+from cic_eth.db.models.role import AccountRole
+from cic_eth.db.models.otx import Otx
+from cic_eth.db.models.tx import TxCache
+from cic_eth.db.models.nonce import Nonce
+from cic_eth.db.enum import StatusEnum
+from cic_eth.error import InitializationError
+from cic_eth.db.error import TxStateChangeError
+from cic_eth.eth.rpc import RpcClient
+from cic_eth.queue.tx import get_tx
+from cic_eth.eth.util import unpack_signed_raw_tx
+
+app = celery.current_app
+
+#logg = logging.getLogger(__file__)
+logg = logging.getLogger()
+
+
+class AdminApi:
+ """Provides an interface to view and manipulate existing transaction tasks and system runtime settings.
+
+ :param rpc_client: Rpc client to use for blockchain connections.
+ :type rpc_client: cic_eth.eth.rpc.RpcClient
+ :param queue: Name of worker queue to submit tasks to
+ :type queue: str
+ """
+ def __init__(self, rpc_client, queue='cic-eth'):
+ self.rpc_client = rpc_client
+ self.w3 = rpc_client.w3
+ self.queue = queue
+
+
+ def unlock(self, chain_spec, address, flags=None):
+ s_unlock = celery.signature(
+ 'cic_eth.admin.ctrl.unlock',
+ [
+ str(chain_spec),
+ flags,
+ address,
+ ],
+ queue=self.queue,
+ )
+ return s_unlock.apply_async()
+
+
+ def lock(self, chain_spec, address, flags=None):
+ s_lock = celery.signature(
+ 'cic_eth.admin.ctrl.lock',
+ [
+ str(chain_spec),
+ flags,
+ address,
+ ],
+ queue=self.queue,
+ )
+ return s_lock.apply_async()
+
+
+ def get_lock(self):
+ s_lock = celery.signature(
+ 'cic_eth.queue.tx.get_lock',
+ [],
+ queue=self.queue,
+ )
+ return s_lock.apply_async().get()
+
+
+ def tag_account(self, tag, address_hex):
+ """Persistently associate an address with a plaintext tag.
+
+ Some tags are known by the system and is used to resolve addresses to use for certain transactions.
+
+ :param tag: Address tag
+ :type tag: str
+ :param address_hex: Ethereum address to tag
+ :type address_hex: str, 0x-hex
+ :raises ValueError: Invalid checksum address
+ """
+ if not web3.Web3.isChecksumAddress(address_hex):
+ raise ValueError('invalid address')
+ session = SessionBase.create_session()
+ role = AccountRole.set(tag, address_hex)
+ session.add(role)
+ session.commit()
+ session.close()
+
+
+ def resend(self, tx_hash_hex, chain_str, in_place=True, unlock=False):
+ logg.debug('resend {}'.format(tx_hash_hex))
+ s_get_tx_cache = celery.signature(
+ 'cic_eth.queue.tx.get_tx_cache',
+ [
+ tx_hash_hex,
+ ],
+ queue=self.queue,
+ )
+
+ # TODO: This check should most likely be in resend task itself
+ tx_dict = s_get_tx_cache.apply_async().get()
+ if tx_dict['status'] in [StatusEnum.REVERTED, StatusEnum.SUCCESS, StatusEnum.CANCELLED, StatusEnum.OBSOLETED]:
+ raise TxStateChangeError('Cannot resend mined or obsoleted transaction'.format(txold_hash_hex))
+
+ s = None
+ if in_place:
+ s = celery.signature(
+ 'cic_eth.eth.tx.resend_with_higher_gas',
+ [
+ tx_hash_hex,
+ chain_str,
+ None,
+ 1.01,
+ ],
+ queue=self.queue,
+ )
+ else:
+ raise NotImplementedError('resend as new not yet implemented')
+
+ if unlock:
+ s_gas = celery.signature(
+ 'cic_eth.admin.ctrl.unlock_send',
+ [
+ chain_str,
+ tx_dict['sender'],
+ ],
+ queue=self.queue,
+ )
+ s.link(s_gas)
+
+ return s.apply_async()
+
+ def check_nonce(self, address):
+ s = celery.signature(
+ 'cic_eth.queue.tx.get_account_tx',
+ [
+ address,
+ True,
+ False,
+ ],
+ queue=self.queue,
+ )
+ txs = s.apply_async().get()
+
+ blocking_tx = None
+ blocking_nonce = None
+ nonce_otx = 0
+ for k in txs.keys():
+ s_get_tx = celery.signature(
+ 'cic_eth.queue.tx.get_tx',
+ [
+ k,
+ ],
+ queue=self.queue,
+ )
+ tx = s_get_tx.apply_async().get()
+ #tx = get_tx(k)
+ logg.debug('checking nonce {}'.format(tx['nonce']))
+ if tx['status'] in [StatusEnum.REJECTED, StatusEnum.FUBAR]:
+ blocking_tx = k
+ blocking_nonce = tx['nonce']
+ nonce_otx = tx['nonce']
+
+ #nonce_cache = Nonce.get(address)
+ nonce_w3 = self.w3.eth.getTransactionCount(address, 'pending')
+
+ return {
+ 'nonce': {
+ 'network': nonce_w3,
+ 'queue': nonce_otx,
+ #'cache': nonce_cache,
+ 'blocking': blocking_nonce,
+ },
+ 'tx': {
+ 'blocking': blocking_tx,
+ }
+ }
+
+
+ def fix_nonce(self, address, nonce):
+ s = celery.signature(
+ 'cic_eth.queue.tx.get_account_tx',
+ [
+ address,
+ True,
+ False,
+ ],
+ queue=self.queue,
+ )
+ txs = s.apply_async().get()
+
+ tx_hash_hex = None
+ for k in txs.keys():
+ tx_dict = get_tx(k)
+ if tx_dict['nonce'] == nonce:
+ tx_hash_hex = k
+
+ s_nonce = celery.signature(
+ 'cic_eth.admin.nonce.shift_nonce',
+ [
+ str(self.rpc_client.chain_spec),
+ tx_hash_hex,
+ ],
+ queue=self.queue
+ )
+ return s_nonce.apply_async()
+
+
+ # TODO: this is a stub, complete all checks
+ def ready(self):
+ """Checks whether all required initializations have been performed.
+
+ :raises cic_eth.error.InitializationError: At least one setting pre-requisite has not been met.
+ :raises KeyError: An address provided for initialization is not known by the keystore.
+ """
+ addr = AccountRole.get_address('ETH_GAS_PROVIDER_ADDRESS')
+ if addr == zero_address:
+ raise InitializationError('missing account ETH_GAS_PROVIDER_ADDRESS')
+
+ self.w3.eth.sign(addr, text='666f6f')
+
+
+ def account(self, chain_spec, address, cols=['tx_hash', 'sender', 'recipient', 'nonce', 'block', 'tx_index', 'status', 'network_status', 'date_created'], include_sender=True, include_recipient=True):
+ """Lists locally originated transactions for the given Ethereum address.
+
+ Performs a synchronous call to the Celery task responsible for performing the query.
+
+ :param address: Ethereum address to return transactions for
+ :type address: str, 0x-hex
+ :param cols: Data columns to include
+ :type cols: list of str
+ """
+ s = celery.signature(
+ 'cic_eth.queue.tx.get_account_tx',
+ [address],
+ queue=self.queue,
+ )
+ txs = s.apply_async().get()
+
+ tx_dict_list = []
+ for tx_hash in txs.keys():
+ s = celery.signature(
+ 'cic_eth.queue.tx.get_tx_cache',
+ [tx_hash],
+ queue=self.queue,
+ )
+ tx_dict = s.apply_async().get()
+ if tx_dict['sender'] == address and not include_sender:
+ logg.debug('skipping sender tx {}'.format(tx_dict['tx_hash']))
+ continue
+ elif tx_dict['recipient'] == address and not include_recipient:
+ logg.debug('skipping recipient tx {}'.format(tx_dict['tx_hash']))
+ continue
+
+ logg.debug(tx_dict)
+ o = {
+ 'nonce': tx_dict['nonce'],
+ 'tx_hash': tx_dict['tx_hash'],
+ 'status': tx_dict['status'],
+ 'date_updated': tx_dict['date_updated'],
+ }
+ tx_dict_list.append(o)
+
+ return tx_dict_list
+
+
+ # TODO: Add exception upon non-existent tx aswell as invalid tx data to docstring
+ def tx(self, chain_spec, tx_hash=None, tx_raw=None):
+ """Output local and network details about a given transaction with local origin.
+
+ If the transaction hash is given, the raw trasnaction data will be retrieved from the local transaction queue backend. Otherwise the raw transaction data must be provided directly. Only one of transaction hash and transaction data can be passed.
+
+ :param chain_spec: Chain spec of the transaction's chain context
+ :type chain_spec: cic_registry.chain.ChainSpec
+ :param tx_hash: Transaction hash of transaction to parse and view
+ :type tx_hash: str, 0x-hex
+ :param tx_raw: Signed raw transaction data to parse and view
+ :type tx_raw: str, 0x-hex
+ :raises ValueError: Both tx_hash and tx_raw are passed
+ :return: Transaction details
+ :rtype: dict
+ """
+ if tx_hash != None and tx_raw != None:
+ ValueError('Specify only one of hash or raw tx')
+
+ if tx_raw != None:
+ tx_hash = self.w3.keccak(hexstr=tx_raw).hex()
+
+ s = celery.signature(
+ 'cic_eth.queue.tx.get_tx_cache',
+ [tx_hash],
+ queue=self.queue,
+ )
+
+ tx = s.apply_async().get()
+
+ source_token = None
+ if tx['source_token'] != zero_address:
+ try:
+ source_token = CICRegistry.get_address(chain_spec, tx['source_token']).contract
+ except UnknownContractError:
+ source_token_contract = self.w3.eth.contract(abi=CICRegistry.abi('ERC20'), address=tx['source_token'])
+ source_token = CICRegistry.add_token(chain_spec, source_token_contract)
+ logg.warning('unknown source token contract {}'.format(tx['source_token']))
+
+ destination_token = None
+ if tx['source_token'] != zero_address:
+ try:
+ destination_token = CICRegistry.get_address(chain_spec, tx['destination_token'])
+ except UnknownContractError:
+ destination_token_contract = self.w3.eth.contract(abi=CICRegistry.abi('ERC20'), address=tx['source_token'])
+ destination_token = CICRegistry.add_token(chain_spec, destination_token_contract)
+ logg.warning('unknown destination token contract {}'.format(tx['destination_token']))
+
+ tx['sender_description'] = 'Custodial account'
+ tx['recipient_description'] = 'Custodial account'
+
+ c = RpcClient(chain_spec)
+ if len(c.w3.eth.getCode(tx['sender'])) > 0:
+ try:
+ sender_contract = CICRegistry.get_address(chain_spec, tx['sender'])
+ tx['sender_description'] = 'Contract {}'.format(sender_contract.identifier())
+ except UnknownContractError:
+ tx['sender_description'] = 'Unknown contract'
+ except KeyError as e:
+ tx['sender_description'] = 'Unknown contract'
+ else:
+ s = celery.signature(
+ 'cic_eth.eth.account.have',
+ [
+ tx['sender'],
+ str(chain_spec),
+ ],
+ queue=self.queue,
+ )
+ t = s.apply_async()
+ account = t.get()
+ if account == None:
+ tx['sender_description'] = 'Unknown account'
+ else:
+ s = celery.signature(
+ 'cic_eth.eth.account.role',
+ [
+ tx['sender'],
+ str(chain_spec),
+ ],
+ queue=self.queue,
+ )
+ t = s.apply_async()
+ role = t.get()
+ if role != None:
+ tx['sender_description'] = role
+
+
+ if len(c.w3.eth.getCode(tx['recipient'])) > 0:
+ try:
+ recipient_contract = CICRegistry.get_address(chain_spec, tx['recipient'])
+ tx['recipient_description'] = 'Contract {}'.format(recipient_contract.identifier())
+ except UnknownContractError as e:
+ tx['recipient_description'] = 'Unknown contract'
+ except KeyError as e:
+ tx['recipient_description'] = 'Unknown contract'
+ else:
+ s = celery.signature(
+ 'cic_eth.eth.account.have',
+ [
+ tx['recipient'],
+ str(chain_spec),
+ ],
+ queue=self.queue,
+ )
+ t = s.apply_async()
+ account = t.get()
+ if account == None:
+ tx['recipient_description'] = 'Unknown account'
+ else:
+ s = celery.signature(
+ 'cic_eth.eth.account.role',
+ [
+ tx['recipient'],
+ str(chain_spec),
+ ],
+ queue=self.queue,
+ )
+ t = s.apply_async()
+ role = t.get()
+ if role != None:
+ tx['recipient_description'] = role
+
+ if source_token != None:
+ tx['source_token_symbol'] = source_token.symbol()
+ tx['sender_token_balance'] = source_token.function('balanceOf')(tx['sender']).call()
+
+ if destination_token != None:
+ tx['destination_token_symbol'] = destination_token.symbol()
+ tx['recipient_token_balance'] = source_token.function('balanceOf')(tx['recipient']).call()
+
+ tx['network_status'] = 'Not submitted'
+
+ try:
+ c.w3.eth.getTransaction(tx_hash)
+ tx['network_status'] = 'Mempool'
+ except web3.exceptions.TransactionNotFound:
+ pass
+
+ try:
+ r = c.w3.eth.getTransactionReceipt(tx_hash)
+ if r.status == 1:
+ tx['network_status'] = 'Confirmed'
+ tx['block'] = r.blockNumber
+ tx['tx_index'] = r.transactionIndex
+ else:
+ tx['network_status'] = 'Reverted'
+ except web3.exceptions.TransactionNotFound:
+ pass
+
+ tx['sender_gas_balance'] = c.w3.eth.getBalance(tx['sender'])
+ tx['recipient_gas_balance'] = c.w3.eth.getBalance(tx['recipient'])
+
+ tx_unpacked = unpack_signed_raw_tx(bytes.fromhex(tx['signed_tx'][2:]), chain_spec.chain_id())
+ tx['gas_price'] = tx_unpacked['gasPrice']
+ tx['gas_limit'] = tx_unpacked['gas']
+
+ s = celery.signature(
+ 'cic_eth.queue.tx.get_state_log',
+ [
+ tx_hash,
+ ],
+ queue=self.queue,
+ )
+ t = s.apply_async()
+ tx['status_log'] = t.get()
+
+ return tx
diff --git a/apps/cic-eth/cic_eth/api/api_task.py b/apps/cic-eth/cic_eth/api/api_task.py
new file mode 100644
index 00000000..eca5f915
--- /dev/null
+++ b/apps/cic-eth/cic_eth/api/api_task.py
@@ -0,0 +1,431 @@
+"""API for cic-eth celery tasks
+
+.. moduleauthor:: Louis Holbrook
+
+"""
+# standard imports
+import logging
+
+# third-party imports
+import celery
+from cic_registry.chain import ChainSpec
+from cic_registry import CICRegistry
+from cic_eth.eth.factory import TxFactory
+from cic_eth.db.enum import LockEnum
+
+app = celery.current_app
+
+logg = logging.getLogger(__name__)
+
+
+class Api:
+ """Creates task chains to perform well-known CIC operations.
+
+ Each method that sends tasks returns details about the root task. The root task uuid can be provided in the callback, to enable to caller to correlate the result with individual calls. It can also be used to independently poll the completion of a task chain.
+
+ :param callback_param: Static value to pass to callback
+ :type callback_param: str
+ :param callback_task: Callback task that executes callback_param call. (Must be included by the celery worker)
+ :type callback_task: string
+ :param queue: Name of worker queue to submit tasks to
+ :type queue: str
+ """
+ def __init__(self, chain_str, queue='cic-eth', callback_param=None, callback_task='cic_eth.callbacks.noop', callback_queue=None):
+ self.chain_str = chain_str
+ self.chain_spec = ChainSpec.from_chain_str(chain_str)
+ self.callback_param = callback_param
+ self.callback_task = callback_task
+ self.queue = queue
+ logg.info('api using queue {}'.format(self.queue))
+ self.callback_success = None
+ self.callback_error = None
+ if callback_queue == None:
+ callback_queue=self.queue
+
+ if callback_param != None:
+ self.callback_success = celery.signature(
+ callback_task,
+ [
+ callback_param,
+ 0,
+ ],
+ queue=callback_queue,
+ )
+ self.callback_error = celery.signature(
+ callback_task,
+ [
+ callback_param,
+ 1,
+ ],
+ queue=callback_queue,
+ )
+
+
+ def convert_transfer(self, from_address, to_address, target_return, minimum_return, from_token_symbol, to_token_symbol):
+ """Executes a chain of celery tasks that performs conversion between two ERC20 tokens, and transfers to a specified receipient after convert has completed.
+
+ :param from_address: Ethereum address of sender
+ :type from_address: str, 0x-hex
+ :param to_address: Ethereum address of receipient
+ :type to_address: str, 0x-hex
+ :param target_return: Estimated return from conversion
+ :type target_return: int
+ :param minimum_return: The least value of destination token return to allow
+ :type minimum_return: int
+ :param from_token_symbol: ERC20 token symbol of token being converted
+ :type from_token_symbol: str
+ :param to_token_symbol: ERC20 token symbol of token to receive
+ :type to_token_symbol: str
+ :returns: uuid of root task
+ :rtype: celery.Task
+ """
+ s_check = celery.signature(
+ 'cic_eth.admin.ctrl.check_lock',
+ [
+ [from_token_symbol, to_token_symbol],
+ self.chain_str,
+ LockEnum.QUEUE,
+ from_address,
+ ],
+ queue=self.queue,
+ )
+ s_tokens = celery.signature(
+ 'cic_eth.eth.token.resolve_tokens_by_symbol',
+ [
+ self.chain_str,
+ ],
+ queue=self.queue,
+ )
+ s_convert = celery.signature(
+ 'cic_eth.eth.bancor.convert_with_default_reserve',
+ [
+ from_address,
+ target_return,
+ minimum_return,
+ to_address,
+ self.chain_str,
+ ],
+ queue=self.queue,
+ )
+ s_check.link(s_tokens)
+ if self.callback_param != None:
+ s_convert.link(self.callback_success)
+ s_tokens.link(s_convert).on_error(self.callback_error)
+ else:
+ s_tokens.link(s_convert)
+
+ t = s_check.apply_async(queue=self.queue)
+ return t
+
+
+ def convert(self, from_address, target_return, minimum_return, from_token_symbol, to_token_symbol):
+ """Executes a chain of celery tasks that performs conversion between two ERC20 tokens.
+
+ :param from_address: Ethereum address of sender
+ :type from_address: str, 0x-hex
+ :param target_return: Estimated return from conversion
+ :type target_return: int
+ :param minimum_return: The least value of destination token return to allow
+ :type minimum_return: int
+ :param from_token_symbol: ERC20 token symbol of token being converted
+ :type from_token_symbol: str
+ :param to_token_symbol: ERC20 token symbol of token to receive
+ :type to_token_symbol: str
+ :returns: uuid of root task
+ :rtype: celery.Task
+ """
+ s_check = celery.signature(
+ 'cic_eth.admin.ctrl.check_lock',
+ [
+ [from_token_symbol, to_token_symbol],
+ self.chain_str,
+ LockEnum.QUEUE,
+ from_address,
+ ],
+ queue=self.queue,
+ )
+ s_tokens = celery.signature(
+ 'cic_eth.eth.token.resolve_tokens_by_symbol',
+ [
+ self.chain_str,
+ ],
+ queue=self.queue,
+ )
+ s_convert = celery.signature(
+ 'cic_eth.eth.bancor.convert_with_default_reserve',
+ [
+ from_address,
+ target_return,
+ minimum_return,
+ from_address,
+ self.chain_str,
+ ],
+ queue=self.queue,
+ )
+ s_check.link(s_tokens)
+ if self.callback_param != None:
+ s_convert.link(self.callback_success)
+ s_tokens.link(s_convert).on_error(self.callback_error)
+ else:
+ s_tokens.link(s_convert)
+
+ t = s_check.apply_async(queue=self.queue)
+ return t
+
+
+ def transfer(self, from_address, to_address, value, token_symbol):
+ """Executes a chain of celery tasks that performs a transfer of ERC20 tokens from one address to another.
+
+ :param from_address: Ethereum address of sender
+ :type from_address: str, 0x-hex
+ :param to_address: Ethereum address of recipient
+ :type to_address: str, 0x-hex
+ :param value: Estimated return from conversion
+ :type value: int
+ :param token_symbol: ERC20 token symbol of token to send
+ :type token_symbol: str
+ :returns: uuid of root task
+ :rtype: celery.Task
+ """
+ s_check = celery.signature(
+ 'cic_eth.admin.ctrl.check_lock',
+ [
+ [token_symbol],
+ self.chain_str,
+ LockEnum.QUEUE,
+ from_address,
+ ],
+ queue=self.queue,
+ )
+ s_tokens = celery.signature(
+ 'cic_eth.eth.token.resolve_tokens_by_symbol',
+ [
+ self.chain_str,
+ ],
+ queue=self.queue,
+ )
+ s_transfer = celery.signature(
+ 'cic_eth.eth.token.transfer',
+ [
+ from_address,
+ to_address,
+ value,
+ self.chain_str,
+ ],
+ queue=self.queue,
+ )
+ s_check.link(s_tokens)
+ if self.callback_param != None:
+ s_transfer.link(self.callback_success)
+ s_tokens.link(s_transfer).on_error(self.callback_error)
+ else:
+ s_tokens.link(s_transfer)
+
+ t = s_check.apply_async(queue=self.queue)
+ return t
+
+
+ def transfer_request(self, from_address, to_address, spender_address, value, token_symbol):
+ """Executes a chain of celery tasks that issues a transfer request of ERC20 tokens from one address to another.
+
+ :param from_address: Ethereum address of sender
+ :type from_address: str, 0x-hex
+ :param to_address: Ethereum address of recipient
+ :type to_address: str, 0x-hex
+ :param spender_address: Ethereum address that is executing transfer (typically an escrow contract)
+ :type spender_address: str, 0x-hex
+ :param value: Estimated return from conversion
+ :type value: int
+ :param token_symbol: ERC20 token symbol of token to send
+ :type token_symbol: str
+ :returns: uuid of root task
+ :rtype: celery.Task
+ """
+ s_check = celery.signature(
+ 'cic_eth.admin.ctrl.check_lock',
+ [
+ [token_symbol],
+ self.chain_str,
+ LockEnum.QUEUE,
+ from_address,
+ ],
+ queue=self.queue,
+ )
+ s_tokens_transfer_approval = celery.signature(
+ 'cic_eth.eth.token.resolve_tokens_by_symbol',
+ [
+ self.chain_str,
+ ],
+ queue=self.queue,
+ )
+ s_tokens_approve = celery.signature(
+ 'cic_eth.eth.token.resolve_tokens_by_symbol',
+ [
+ self.chain_str,
+ ],
+ queue=self.queue,
+ )
+ s_approve = celery.signature(
+ 'cic_eth.eth.token.approve',
+ [
+ from_address,
+ spender_address,
+ value,
+ self.chain_str,
+ ],
+ queue=self.queue,
+ )
+ s_transfer_approval = celery.signature(
+ 'cic_eth.eth.request.transfer_approval_request',
+ [
+ from_address,
+ to_address,
+ value,
+ self.chain_str,
+ ],
+ queue=self.queue,
+ )
+ # TODO: make approve and transfer_approval chainable so callback can be part of the full chain
+ if self.callback_param != None:
+ s_transfer_approval.link(self.callback_success)
+ s_tokens_approve.link(s_approve)
+ s_tokens_transfer_approval.link(s_transfer_approval).on_error(self.callback_error)
+ else:
+ s_tokens_approve.link(s_approve)
+ s_tokens_transfer_approval.link(s_transfer_approval)
+
+ g = celery.group(s_tokens_approve, s_tokens_transfer_approval) #s_tokens.apply_async(queue=self.queue)
+ s_check.link(g)
+ t = s_check.apply_async()
+ #t = s_tokens.apply_async(queue=self.queue)
+ return t
+
+
+ def balance(self, address, token_symbol):
+ """Calls the provided callback with the current token balance of the given address.
+
+ :param address: Ethereum address of holder
+ :type address: str, 0x-hex
+ :param token_symbol: ERC20 token symbol of token to send
+ :type token_symbol: str
+ :returns: uuid of root task
+ :rtype: celery.Task
+ """
+ if self.callback_param == None:
+ logg.warning('balance pointlessly called with no callback url')
+
+ s_tokens = celery.signature(
+ 'cic_eth.eth.token.resolve_tokens_by_symbol',
+ [
+ [token_symbol],
+ self.chain_str,
+ ],
+ queue=self.queue,
+ )
+ s_balance = celery.signature(
+ 'cic_eth.eth.token.balance',
+ [
+ address,
+ self.chain_str,
+ ],
+ queue=self.queue,
+ )
+
+ if self.callback_param != None:
+ s_balance.link(self.callback_success)
+ s_tokens.link(s_balance).on_error(self.callback_error)
+ else:
+ s_tokens.link(s_balance)
+
+ t = s_tokens.apply_async(queue=self.queue)
+ return t
+
+
+ def create_account(self, password='', register=True):
+ """Creates a new blockchain address encrypted with the given password, and calls the provided callback with the address of the new account.
+
+ :param password: Password to encode the password with in the backend (careful, you will have to remember it)
+ :type password: str
+ :param register: Register the new account in accounts index backend
+ :type password: bool
+ :returns: uuid of root task
+ :rtype: celery.Task
+ """
+ s_check = celery.signature(
+ 'cic_eth.admin.ctrl.check_lock',
+ [
+ password,
+ self.chain_str,
+ LockEnum.CREATE,
+ ],
+ queue=self.queue,
+ )
+ s_account = celery.signature(
+ 'cic_eth.eth.account.create',
+ [
+ self.chain_str,
+ ],
+ queue=self.queue,
+ )
+ s_check.link(s_account)
+ if self.callback_param != None:
+ s_account.link(self.callback_success)
+
+ if register:
+ s_register = celery.signature(
+ 'cic_eth.eth.account.register',
+ [
+ self.chain_str,
+ ],
+ queue=self.queue,
+ )
+ s_account.link(s_register)
+
+ t = s_check.apply_async(queue=self.queue)
+ return t
+
+
+ def refill_gas(self, address):
+ """Creates a new gas refill transaction with the registered gas provider address.
+
+ :param address: Ethereum address to send gas tokens to.
+ :type address: str
+ :returns: uuid of root task
+ :rtype: celery.Task
+ """
+ s_check = celery.signature(
+ 'cic_eth.admin.ctrl.check_lock',
+ [
+ address,
+ self.chain_str,
+ LockEnum.QUEUE,
+ ],
+ queue=self.queue,
+ )
+ s_refill = celery.signature(
+ 'cic_eth.eth.tx.refill_gas',
+ [
+ self.chain_str,
+ ],
+ queue=self.queue,
+ )
+ s_check.link(s_refill)
+ if self.callback_param != None:
+ s_refill.link(self.callback_success)
+
+ t = s_check.apply_async(queue=self.queue)
+ return t
+
+
+ def ping(self, r):
+ """A noop callback ping for testing purposes.
+
+ :returns: uuid of callback task
+ :rtype: celery.Task
+ """
+ if self.callback_param == None:
+ logg.warning('nothing to do')
+ return None
+
+ t = self.callback_success.apply_async([r])
+ return t
diff --git a/apps/cic-eth/cic_eth/callbacks/__init__.py b/apps/cic-eth/cic_eth/callbacks/__init__.py
new file mode 100644
index 00000000..45bea60d
--- /dev/null
+++ b/apps/cic-eth/cic_eth/callbacks/__init__.py
@@ -0,0 +1 @@
+from .callback import Callback
diff --git a/apps/cic-eth/cic_eth/callbacks/callback.py b/apps/cic-eth/cic_eth/callbacks/callback.py
new file mode 100644
index 00000000..4ca56e3a
--- /dev/null
+++ b/apps/cic-eth/cic_eth/callbacks/callback.py
@@ -0,0 +1,16 @@
+# third-party imports
+import celery
+
+class Callback(celery.Task):
+ """Provides static properties for web connection context. The properties should be set directly.
+ """
+ ssl = False
+ """If true, a SSL client certificate with default protocol for standard library ssl will be used for the HTTP connection."""
+ ssl_cert_file = None
+ """Absolute path to client certificate PEM file"""
+ ssl_key_file = None
+ """Absolute path to client key file"""
+ ssl_password=None
+ """Password to unlock key file"""
+ ssl_ca_file = None
+ """Client certificate CA chain"""
diff --git a/apps/cic-eth/cic_eth/callbacks/http.py b/apps/cic-eth/cic_eth/callbacks/http.py
new file mode 100644
index 00000000..f06982e5
--- /dev/null
+++ b/apps/cic-eth/cic_eth/callbacks/http.py
@@ -0,0 +1,64 @@
+# standard imports
+import json
+import ssl
+import os
+import urllib
+from urllib import request
+from urllib.request import urlopen
+
+# third-party imports
+from . import Callback
+import celery
+
+celery_app = celery.current_app
+logg = celery_app.log.get_default_logger()
+
+
+@celery_app.task(base=Callback, bind=True)
+def http(self, result, url, status_code):
+ """A generic web callback implementation for task results.
+
+ Input parameters depend on whether the callback is used as an error callback, or as a part of a celery chain.
+
+ The callback receives:
+
+ {
+ 'root_id': the uuid of the topmost task in the chain, which is known to the API caller.
+ 'status': ,
+ 'result': ,
+ }
+
+ :param result: Task context object (on error) or return value of previous task (on success)
+ :type result: Varies
+ :param url: Url to HTTP POST results to
+ :type url: str
+ :param status_code: 0 on success, any other value is error
+ :type status_code: int
+ """
+ req = request.Request(url)
+ data = {
+ 'root_id': self.request.root_id,
+ 'status': status_code,
+ 'result': result,
+ }
+ data_str = json.dumps(data)
+ data_bytes = data_str.encode('utf-8')
+ req.add_header('Content-Type', 'application/json')
+ req.data = data_bytes
+
+ ctx = None
+ if self.ssl:
+ ctx = ssl.SSLContext()
+ ctx.load_cert_chain(
+ self.ssl_cert_file,
+ self.ssl_key_file,
+ self.ssl_password,
+ )
+
+ response = urlopen(
+ req,
+ context=ctx,
+ )
+
+ if response.status != 200:
+ raise RuntimeError('Expected status 200 from remote server, but got {} {}'.format(response.status, response.msg))
diff --git a/apps/cic-eth/cic_eth/callbacks/noop.py b/apps/cic-eth/cic_eth/callbacks/noop.py
new file mode 100644
index 00000000..b064e40d
--- /dev/null
+++ b/apps/cic-eth/cic_eth/callbacks/noop.py
@@ -0,0 +1,21 @@
+import celery
+
+celery_app = celery.current_app
+logg = celery_app.log.get_default_logger()
+
+
+@celery_app.task(bind=True)
+def noop(self, result, param, status_code):
+ """A noop callback for task chains executed by external api methods. Logs the callback arguments.
+
+ :param result: Task context object (on error) or return value of previous task (on success)
+ :type result: Varies
+ :param param: Static value passed from api caller
+ :type param: Varies
+ :param status_code: 0 on success, any other value is error
+ :type status_code: int
+ :returns: True
+ :rtype: bool
+ """
+ logg.info('noop callback {} {} {}'.format(result, param, status_code))
+ return True
diff --git a/apps/cic-eth/cic_eth/callbacks/redis.py b/apps/cic-eth/cic_eth/callbacks/redis.py
new file mode 100644
index 00000000..648edabb
--- /dev/null
+++ b/apps/cic-eth/cic_eth/callbacks/redis.py
@@ -0,0 +1,24 @@
+# standard imports
+import logging
+import json
+import redis as redis_interface
+
+# third-party imports
+import celery
+
+# local imports
+from . import Callback
+
+celery_app = celery.current_app
+
+logg = celery_app.log.get_default_logger()
+
+
+@celery_app.task(base=Callback, bind=True)
+def redis(self, result, destination, status_code):
+ (host, port, db, channel) = destination.split(':')
+ r = redis_interface.Redis(host=host, port=port, db=db)
+ s = json.dumps(result)
+ logg.debug('redis callback on host {} port {} db {} channel {}'.format(host, port, db, channel))
+ r.publish(channel, s)
+ r.close()
diff --git a/apps/cic-eth/cic_eth/callbacks/tcp.py b/apps/cic-eth/cic_eth/callbacks/tcp.py
new file mode 100644
index 00000000..9cd79938
--- /dev/null
+++ b/apps/cic-eth/cic_eth/callbacks/tcp.py
@@ -0,0 +1,24 @@
+# standard imports
+import socket
+import logging
+import json
+
+# third-party imports
+import celery
+
+# local imports
+from . import Callback
+
+celery_app = celery.current_app
+
+logg = celery_app.log.get_default_logger()
+
+
+@celery_app.task(base=Callback, bind=True)
+def tcp(self, result, destination, status_code):
+ s = socket.socket(family=socket.AF_INET, type=socket.SOCK_STREAM)
+ (host, port) = destination.split(':')
+ logg.debug('tcp callback to {} {}'.format(host, port))
+ s.connect((host, int(port)))
+ s.send(json.dumps(result).encode('utf-8'))
+ s.close()
diff --git a/apps/cic-eth/cic_eth/db/__init__.py b/apps/cic-eth/cic_eth/db/__init__.py
new file mode 100644
index 00000000..1a549508
--- /dev/null
+++ b/apps/cic-eth/cic_eth/db/__init__.py
@@ -0,0 +1,61 @@
+# standard imports
+import os
+import logging
+
+# local imports
+from cic_eth.db.models.base import SessionBase
+
+logg = logging.getLogger()
+
+
+# an Engine, which the Session will use for connection
+# resources
+
+# TODO: Remove the package exports, all models should be imported using full path
+from .models.otx import Otx
+from .models.convert import TxConvertTransfer
+
+
+def dsn_from_config(config):
+ """Generate a dsn string from the provided config dict.
+
+ The config dict must include all well-known database connection parameters, and must implement the method "get(key)" to retrieve them. Any missing parameters will be be rendered as the literal string "None"
+
+ :param config: Configuration object
+ :type config: Varies
+ :returns: dsn string
+ :rtype: str
+ """
+ scheme = config.get('DATABASE_ENGINE')
+ if config.get('DATABASE_DRIVER') != None:
+ scheme += '+{}'.format(config.get('DATABASE_DRIVER'))
+
+ dsn = ''
+ dsn_out = ''
+ if config.get('DATABASE_ENGINE') == 'sqlite':
+ dsn = '{}:///{}'.format(
+ scheme,
+ config.get('DATABASE_NAME'),
+ )
+ dsn_out = dsn
+
+ else:
+ dsn = '{}://{}:{}@{}:{}/{}'.format(
+ scheme,
+ config.get('DATABASE_USER'),
+ config.get('DATABASE_PASSWORD'),
+ config.get('DATABASE_HOST'),
+ config.get('DATABASE_PORT'),
+ config.get('DATABASE_NAME'),
+ )
+ dsn_out = '{}://{}:{}@{}:{}/{}'.format(
+ scheme,
+ config.get('DATABASE_USER'),
+ '***',
+ config.get('DATABASE_HOST'),
+ config.get('DATABASE_PORT'),
+ config.get('DATABASE_NAME'),
+ )
+ logg.debug('parsed dsn from config: {}'.format(dsn_out))
+ return dsn
+
diff --git a/apps/cic-eth/cic_eth/db/enum.py b/apps/cic-eth/cic_eth/db/enum.py
new file mode 100644
index 00000000..c835cac3
--- /dev/null
+++ b/apps/cic-eth/cic_eth/db/enum.py
@@ -0,0 +1,51 @@
+# standard imports
+import enum
+
+class StatusEnum(enum.IntEnum):
+ """
+
+ - Inactive, not finalized. (<0)
+ * PENDING: The initial state of a newly added transaction record. No action has been performed on this transaction yet.
+ * SENDFAIL: The transaction was not received by the node.
+ * RETRY: The transaction is queued for a new send attempt after previously failing.
+ * READYSEND: The transaction is queued for its first send attempt
+ * OBSOLETED: A new transaction with the same nonce and higher gas has been sent to network.
+ * WAITFORGAS: The transaction is on hold pending gas funding.
+ - Active state: (==0)
+ * SENT: The transaction has been sent to the mempool.
+ - Inactive, finalized. (>0)
+ * FUBAR: Unknown error occurred and transaction is abandoned. Manual intervention needed.
+ * CANCELLED: The transaction was sent, but was not mined and has disappered from the mempool. This usually follows a transaction being obsoleted.
+ * OVERRIDDEN: Transaction has been manually overriden.
+ * REJECTED: The transaction was rejected by the node.
+ * REVERTED: The transaction was mined, but exception occurred during EVM execution. (Block number will be set)
+ * SUCCESS: THe transaction was successfully mined. (Block number will be set)
+
+ """
+ PENDING=-9
+ SENDFAIL=-8
+ RETRY=-7
+ READYSEND=-6
+ OBSOLETED=-2
+ WAITFORGAS=-1
+ SENT=0
+ FUBAR=1
+ CANCELLED=2
+ OVERRIDDEN=3
+ REJECTED=7
+ REVERTED=8
+ SUCCESS=9
+
+
+class LockEnum(enum.IntEnum):
+ """
+ STICKY: When set, reset is not possible
+ CREATE: Disable creation of accounts
+ SEND: Disable sending to network
+ QUEUE: Disable queueing new or modified transactions
+ """
+ STICKY=1
+ CREATE=2
+ SEND=4
+ QUEUE=8
+ ALL=int(0xfffffffffffffffe)
diff --git a/apps/cic-eth/cic_eth/db/error.py b/apps/cic-eth/cic_eth/db/error.py
new file mode 100644
index 00000000..29b89f01
--- /dev/null
+++ b/apps/cic-eth/cic_eth/db/error.py
@@ -0,0 +1,9 @@
+class TxStateChangeError(Exception):
+ """Raised when an invalid state change of a queued transaction occurs
+ """
+ pass
+
+
+class UnknownConvertError(Exception):
+ """Raised when a non-existent convert to transaction subtask is requested
+ """
diff --git a/apps/cic-eth/cic_eth/db/migrations/default/README b/apps/cic-eth/cic_eth/db/migrations/default/README
new file mode 100644
index 00000000..98e4f9c4
--- /dev/null
+++ b/apps/cic-eth/cic_eth/db/migrations/default/README
@@ -0,0 +1 @@
+Generic single-database configuration.
\ No newline at end of file
diff --git a/apps/cic-eth/cic_eth/db/migrations/default/alembic.ini b/apps/cic-eth/cic_eth/db/migrations/default/alembic.ini
new file mode 100644
index 00000000..1555f68c
--- /dev/null
+++ b/apps/cic-eth/cic_eth/db/migrations/default/alembic.ini
@@ -0,0 +1,85 @@
+# A generic, single database configuration.
+
+[alembic]
+# path to migration scripts
+script_location = .
+
+# template used to generate migration files
+# file_template = %%(rev)s_%%(slug)s
+
+# timezone to use when rendering the date
+# within the migration file as well as the filename.
+# string value is passed to dateutil.tz.gettz()
+# leave blank for localtime
+# timezone =
+
+# max length of characters to apply to the
+# "slug" field
+# truncate_slug_length = 40
+
+# set to 'true' to run the environment during
+# the 'revision' command, regardless of autogenerate
+# revision_environment = false
+
+# set to 'true' to allow .pyc and .pyo files without
+# a source .py file to be detected as revisions in the
+# versions/ directory
+# sourceless = false
+
+# version location specification; this defaults
+# to migrations/versions. When using multiple version
+# directories, initial revisions must be specified with --version-path
+# version_locations = %(here)s/bar %(here)s/bat migrations/versions
+
+# the output encoding used when revision files
+# are written from script.py.mako
+# output_encoding = utf-8
+
+#sqlalchemy.url = driver://user:pass@localhost/dbname
+sqlalchemy.url = postgresql+psycopg2://postgres@localhost:5432/cic-eth
+
+[post_write_hooks]
+# post_write_hooks defines scripts or Python functions that are run
+# on newly generated revision scripts. See the documentation for further
+# detail and examples
+
+# format using "black" - use the console_scripts runner, against the "black" entrypoint
+# hooks=black
+# black.type=console_scripts
+# black.entrypoint=black
+# black.options=-l 79
+
+# Logging configuration
+[loggers]
+keys = root,sqlalchemy,alembic
+
+[handlers]
+keys = console
+
+[formatters]
+keys = generic
+
+[logger_root]
+level = WARN
+handlers = console
+qualname =
+
+[logger_sqlalchemy]
+level = WARN
+handlers =
+qualname = sqlalchemy.engine
+
+[logger_alembic]
+level = INFO
+handlers =
+qualname = alembic
+
+[handler_console]
+class = StreamHandler
+args = (sys.stderr,)
+level = NOTSET
+formatter = generic
+
+[formatter_generic]
+format = %(levelname)-5.5s [%(name)s] %(message)s
+datefmt = %H:%M:%S
diff --git a/apps/cic-eth/cic_eth/db/migrations/default/env.py b/apps/cic-eth/cic_eth/db/migrations/default/env.py
new file mode 100644
index 00000000..70518a2e
--- /dev/null
+++ b/apps/cic-eth/cic_eth/db/migrations/default/env.py
@@ -0,0 +1,77 @@
+from logging.config import fileConfig
+
+from sqlalchemy import engine_from_config
+from sqlalchemy import pool
+
+from alembic import context
+
+# this is the Alembic Config object, which provides
+# access to the values within the .ini file in use.
+config = context.config
+
+# Interpret the config file for Python logging.
+# This line sets up loggers basically.
+fileConfig(config.config_file_name)
+
+# add your model's MetaData object here
+# for 'autogenerate' support
+# from myapp import mymodel
+# target_metadata = mymodel.Base.metadata
+target_metadata = None
+
+# other values from the config, defined by the needs of env.py,
+# can be acquired:
+# my_important_option = config.get_main_option("my_important_option")
+# ... etc.
+
+
+def run_migrations_offline():
+ """Run migrations in 'offline' mode.
+
+ This configures the context with just a URL
+ and not an Engine, though an Engine is acceptable
+ here as well. By skipping the Engine creation
+ we don't even need a DBAPI to be available.
+
+ Calls to context.execute() here emit the given string to the
+ script output.
+
+ """
+ url = config.get_main_option("sqlalchemy.url")
+ context.configure(
+ url=url,
+ target_metadata=target_metadata,
+ literal_binds=True,
+ dialect_opts={"paramstyle": "named"},
+ )
+
+ with context.begin_transaction():
+ context.run_migrations()
+
+
+def run_migrations_online():
+ """Run migrations in 'online' mode.
+
+ In this scenario we need to create an Engine
+ and associate a connection with the context.
+
+ """
+ connectable = engine_from_config(
+ config.get_section(config.config_ini_section),
+ prefix="sqlalchemy.",
+ poolclass=pool.NullPool,
+ )
+
+ with connectable.connect() as connection:
+ context.configure(
+ connection=connection, target_metadata=target_metadata
+ )
+
+ with context.begin_transaction():
+ context.run_migrations()
+
+
+if context.is_offline_mode():
+ run_migrations_offline()
+else:
+ run_migrations_online()
diff --git a/apps/cic-eth/cic_eth/db/migrations/default/script.py.mako b/apps/cic-eth/cic_eth/db/migrations/default/script.py.mako
new file mode 100644
index 00000000..2c015630
--- /dev/null
+++ b/apps/cic-eth/cic_eth/db/migrations/default/script.py.mako
@@ -0,0 +1,24 @@
+"""${message}
+
+Revision ID: ${up_revision}
+Revises: ${down_revision | comma,n}
+Create Date: ${create_date}
+
+"""
+from alembic import op
+import sqlalchemy as sa
+${imports if imports else ""}
+
+# revision identifiers, used by Alembic.
+revision = ${repr(up_revision)}
+down_revision = ${repr(down_revision)}
+branch_labels = ${repr(branch_labels)}
+depends_on = ${repr(depends_on)}
+
+
+def upgrade():
+ ${upgrades if upgrades else "pass"}
+
+
+def downgrade():
+ ${downgrades if downgrades else "pass"}
diff --git a/apps/cic-eth/cic_eth/db/migrations/default/versions/2a07b543335e_add_new_syncer_table.py b/apps/cic-eth/cic_eth/db/migrations/default/versions/2a07b543335e_add_new_syncer_table.py
new file mode 100644
index 00000000..30ddb96f
--- /dev/null
+++ b/apps/cic-eth/cic_eth/db/migrations/default/versions/2a07b543335e_add_new_syncer_table.py
@@ -0,0 +1,35 @@
+"""Add new syncer table
+
+Revision ID: 2a07b543335e
+Revises: a2e2aab8f331
+Create Date: 2020-12-27 09:35:44.017981
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '2a07b543335e'
+down_revision = 'a2e2aab8f331'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+ op.create_table(
+ 'blockchain_sync',
+ sa.Column('id', sa.Integer, primary_key=True),
+ sa.Column('blockchain', sa.String, nullable=False),
+ sa.Column('block_start', sa.Integer, nullable=False, default=0),
+ sa.Column('tx_start', sa.Integer, nullable=False, default=0),
+ sa.Column('block_cursor', sa.Integer, nullable=False, default=0),
+ sa.Column('tx_cursor', sa.Integer, nullable=False, default=0),
+ sa.Column('block_target', sa.Integer, nullable=True),
+ sa.Column('date_created', sa.DateTime, nullable=False),
+ sa.Column('date_updated', sa.DateTime),
+ )
+
+
+def downgrade():
+ op.drop_table('blockchain_sync')
diff --git a/apps/cic-eth/cic_eth/db/migrations/default/versions/49b348246d70_add_nonce_index.py b/apps/cic-eth/cic_eth/db/migrations/default/versions/49b348246d70_add_nonce_index.py
new file mode 100644
index 00000000..3abee1b6
--- /dev/null
+++ b/apps/cic-eth/cic_eth/db/migrations/default/versions/49b348246d70_add_nonce_index.py
@@ -0,0 +1,29 @@
+"""Add nonce index
+
+Revision ID: 49b348246d70
+Revises: 52c7c59cd0b1
+Create Date: 2020-12-19 09:45:36.186446
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '49b348246d70'
+down_revision = '52c7c59cd0b1'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+ op.create_table(
+ 'nonce',
+ sa.Column('id', sa.Integer, primary_key=True),
+ sa.Column('address_hex', sa.String(42), nullable=False, unique=True),
+ sa.Column('nonce', sa.Integer, nullable=False),
+ )
+
+
+def downgrade():
+ op.drop_table('nonce')
diff --git a/apps/cic-eth/cic_eth/db/migrations/default/versions/52c7c59cd0b1_add_account_roles.py b/apps/cic-eth/cic_eth/db/migrations/default/versions/52c7c59cd0b1_add_account_roles.py
new file mode 100644
index 00000000..7aa74059
--- /dev/null
+++ b/apps/cic-eth/cic_eth/db/migrations/default/versions/52c7c59cd0b1_add_account_roles.py
@@ -0,0 +1,31 @@
+"""Add account roles
+
+Revision ID: 52c7c59cd0b1
+Revises: 9c4bd7491015
+Create Date: 2020-12-19 07:21:38.249237
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '52c7c59cd0b1'
+down_revision = '9c4bd7491015'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+ op.create_table(
+ 'account_role',
+ sa.Column('id', sa.Integer, primary_key=True),
+ sa.Column('tag', sa.Text, nullable=False, unique=True),
+ sa.Column('address_hex', sa.String(42), nullable=False),
+ )
+ pass
+
+
+def downgrade():
+ op.drop_table('account_role')
+ pass
diff --git a/apps/cic-eth/cic_eth/db/migrations/default/versions/6ac7a1dadc46_add_otx_state_log.py b/apps/cic-eth/cic_eth/db/migrations/default/versions/6ac7a1dadc46_add_otx_state_log.py
new file mode 100644
index 00000000..f15834d9
--- /dev/null
+++ b/apps/cic-eth/cic_eth/db/migrations/default/versions/6ac7a1dadc46_add_otx_state_log.py
@@ -0,0 +1,30 @@
+"""Add otx state log
+
+Revision ID: 6ac7a1dadc46
+Revises: 89e1e9baa53c
+Create Date: 2021-01-30 13:59:49.022373
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '6ac7a1dadc46'
+down_revision = '89e1e9baa53c'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+ op.create_table(
+ 'otx_state_log',
+ sa.Column('id', sa.Integer, primary_key=True),
+ sa.Column('otx_id', sa.Integer, sa.ForeignKey('otx.id'), nullable=False),
+ sa.Column('date', sa.DateTime, nullable=False),
+ sa.Column('status', sa.Integer, nullable=False),
+ )
+
+
+def downgrade():
+ op.drop_table('otx_state_log')
diff --git a/apps/cic-eth/cic_eth/db/migrations/default/versions/71708e943dbd_add_attempts_and_version_log_for_otx.py b/apps/cic-eth/cic_eth/db/migrations/default/versions/71708e943dbd_add_attempts_and_version_log_for_otx.py
new file mode 100644
index 00000000..3be687eb
--- /dev/null
+++ b/apps/cic-eth/cic_eth/db/migrations/default/versions/71708e943dbd_add_attempts_and_version_log_for_otx.py
@@ -0,0 +1,31 @@
+"""Add attempts and version log for otx
+
+Revision ID: 71708e943dbd
+Revises: 7e8d7626e38f
+Create Date: 2020-09-26 14:41:19.298651
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '71708e943dbd'
+down_revision = '7e8d7626e38f'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+ op.create_table(
+ 'otx_attempts',
+ sa.Column('id', sa.Integer, primary_key=True),
+ sa.Column('otx_id', sa.Integer, sa.ForeignKey('otx.id'), nullable=False),
+ sa.Column('date', sa.DateTime, nullable=False),
+ )
+ pass
+
+
+def downgrade():
+ op.drop_table('otx_attempts')
+ pass
diff --git a/apps/cic-eth/cic_eth/db/migrations/default/versions/7cb65b893934_add_blocknumber_pointer.py b/apps/cic-eth/cic_eth/db/migrations/default/versions/7cb65b893934_add_blocknumber_pointer.py
new file mode 100644
index 00000000..74a97f83
--- /dev/null
+++ b/apps/cic-eth/cic_eth/db/migrations/default/versions/7cb65b893934_add_blocknumber_pointer.py
@@ -0,0 +1,31 @@
+"""add blocknumber pointer
+
+Revision ID: 7cb65b893934
+Revises: 8593fa1ca0f4
+Create Date: 2020-09-24 19:29:13.543648
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '7cb65b893934'
+down_revision = '8593fa1ca0f4'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+ op.create_table(
+ 'watcher_state',
+ sa.Column('block_number', sa.Integer)
+ )
+ conn = op.get_bind()
+ conn.execute('INSERT INTO watcher_state (block_number) VALUES (0);')
+ pass
+
+
+def downgrade():
+ op.drop_table('watcher_state')
+ pass
diff --git a/apps/cic-eth/cic_eth/db/migrations/default/versions/7e8d7626e38f_add_block_sync.py b/apps/cic-eth/cic_eth/db/migrations/default/versions/7e8d7626e38f_add_block_sync.py
new file mode 100644
index 00000000..52f29a7b
--- /dev/null
+++ b/apps/cic-eth/cic_eth/db/migrations/default/versions/7e8d7626e38f_add_block_sync.py
@@ -0,0 +1,45 @@
+"""Add block sync
+
+Revision ID: 7e8d7626e38f
+Revises: cd2052be6db2
+Create Date: 2020-09-26 11:12:27.818524
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '7e8d7626e38f'
+down_revision = 'cd2052be6db2'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+ op.create_table(
+ 'block_sync',
+ sa.Column('id', sa.Integer, primary_key=True),
+ sa.Column('blockchain', sa.String, nullable=False, unique=True),
+ sa.Column('block_height_backlog', sa.Integer, nullable=False, default=0),
+ sa.Column('tx_height_backlog', sa.Integer, nullable=False, default=0),
+ sa.Column('block_height_session', sa.Integer, nullable=False, default=0),
+ sa.Column('tx_height_session', sa.Integer, nullable=False, default=0),
+ sa.Column('block_height_head', sa.Integer, nullable=False, default=0),
+ sa.Column('tx_height_head', sa.Integer, nullable=False, default=0),
+ sa.Column('date_created', sa.DateTime, nullable=False),
+ sa.Column('date_updated', sa.DateTime),
+ )
+ op.drop_table('watcher_state')
+ pass
+
+
+def downgrade():
+ op.drop_table('block_sync')
+ op.create_table(
+ 'watcher_state',
+ sa.Column('block_number', sa.Integer)
+ )
+ conn = op.get_bind()
+ conn.execute('INSERT INTO watcher_state (block_number) VALUES (0);')
+ pass
diff --git a/apps/cic-eth/cic_eth/db/migrations/default/versions/8593fa1ca0f4_add_transaction_queue.py b/apps/cic-eth/cic_eth/db/migrations/default/versions/8593fa1ca0f4_add_transaction_queue.py
new file mode 100644
index 00000000..e9f9cf6a
--- /dev/null
+++ b/apps/cic-eth/cic_eth/db/migrations/default/versions/8593fa1ca0f4_add_transaction_queue.py
@@ -0,0 +1,35 @@
+"""Add transaction queue
+
+Revision ID: 8593fa1ca0f4
+Revises:
+Create Date: 2020-09-22 21:56:42.117047
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '8593fa1ca0f4'
+down_revision = None
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+ op.create_table(
+ 'otx',
+ sa.Column('id', sa.Integer, primary_key=True),
+ sa.Column('date_created', sa.DateTime, nullable=False),
+ sa.Column('nonce', sa.Integer, nullable=False),
+ sa.Column('tx_hash', sa.String(66), nullable=False),
+ sa.Column('signed_tx', sa.Text, nullable=False),
+ sa.Column('status', sa.Integer, nullable=False, default=-9),
+ sa.Column('block', sa.Integer),
+ )
+ op.create_index('idx_otx_tx', 'otx', ['tx_hash'], unique=True)
+
+
+def downgrade():
+ op.drop_index('idx_otx_tx')
+ op.drop_table('otx')
diff --git a/apps/cic-eth/cic_eth/db/migrations/default/versions/89e1e9baa53c_add_account_lock.py b/apps/cic-eth/cic_eth/db/migrations/default/versions/89e1e9baa53c_add_account_lock.py
new file mode 100644
index 00000000..4b1c4401
--- /dev/null
+++ b/apps/cic-eth/cic_eth/db/migrations/default/versions/89e1e9baa53c_add_account_lock.py
@@ -0,0 +1,33 @@
+"""Add account lock
+
+Revision ID: 89e1e9baa53c
+Revises: 2a07b543335e
+Create Date: 2021-01-27 19:57:36.793882
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '89e1e9baa53c'
+down_revision = '2a07b543335e'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+ op.create_table(
+ 'lock',
+ sa.Column('id', sa.Integer, primary_key=True),
+ sa.Column("address", sa.String(42), nullable=True),
+ sa.Column('blockchain', sa.String),
+ sa.Column("flags", sa.BIGINT(), nullable=False, default=0),
+ sa.Column("date_created", sa.DateTime, nullable=False),
+ sa.Column("otx_id", sa.Integer, nullable=True),
+ )
+ op.create_index('idx_chain_address', 'lock', ['blockchain', 'address'], unique=True)
+
+def downgrade():
+ op.drop_index('idx_chain_address')
+ op.drop_table('lock')
diff --git a/apps/cic-eth/cic_eth/db/migrations/default/versions/9c4bd7491015_rename_block_sync_table.py b/apps/cic-eth/cic_eth/db/migrations/default/versions/9c4bd7491015_rename_block_sync_table.py
new file mode 100644
index 00000000..f58721b2
--- /dev/null
+++ b/apps/cic-eth/cic_eth/db/migrations/default/versions/9c4bd7491015_rename_block_sync_table.py
@@ -0,0 +1,26 @@
+"""Rename block sync table
+
+Revision ID: 9c4bd7491015
+Revises: 9daa16518a91
+Create Date: 2020-10-15 23:45:56.306898
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '9c4bd7491015'
+down_revision = '9daa16518a91'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+ op.rename_table('block_sync', 'otx_sync')
+ pass
+
+
+def downgrade():
+ op.rename_table('otx_sync', 'block_sync')
+ pass
diff --git a/apps/cic-eth/cic_eth/db/migrations/default/versions/9daa16518a91_add_tx_sync_state.py b/apps/cic-eth/cic_eth/db/migrations/default/versions/9daa16518a91_add_tx_sync_state.py
new file mode 100644
index 00000000..2c6cc0fe
--- /dev/null
+++ b/apps/cic-eth/cic_eth/db/migrations/default/versions/9daa16518a91_add_tx_sync_state.py
@@ -0,0 +1,30 @@
+"""add tx sync state
+
+Revision ID: 9daa16518a91
+Revises: e3b5330ee71c
+Create Date: 2020-10-10 14:43:18.699276
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '9daa16518a91'
+down_revision = 'e3b5330ee71c'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+# op.create_table(
+# 'tx_sync',
+# sa.Column('tx', sa.String(66), nullable=False),
+# )
+# op.execute("INSERT INTO tx_sync VALUES('0x0000000000000000000000000000000000000000000000000000000000000000')")
+ pass
+
+
+def downgrade():
+# op.drop_table('tx_sync')
+ pass
diff --git a/apps/cic-eth/cic_eth/db/migrations/default/versions/a2e2aab8f331_add_date_accessed_to_txcache.py b/apps/cic-eth/cic_eth/db/migrations/default/versions/a2e2aab8f331_add_date_accessed_to_txcache.py
new file mode 100644
index 00000000..f82f2615
--- /dev/null
+++ b/apps/cic-eth/cic_eth/db/migrations/default/versions/a2e2aab8f331_add_date_accessed_to_txcache.py
@@ -0,0 +1,34 @@
+"""Add date accessed to txcache
+
+Revision ID: a2e2aab8f331
+Revises: 49b348246d70
+Create Date: 2020-12-24 18:58:06.137812
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = 'a2e2aab8f331'
+down_revision = '49b348246d70'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+ op.add_column(
+ 'tx_cache',
+ sa.Column(
+ 'date_checked',
+ sa.DateTime,
+ nullable=False
+ )
+ )
+ pass
+
+
+def downgrade():
+ # drop does not work withs qlite
+ #op.drop_column('tx_cache', 'date_checked')
+ pass
diff --git a/apps/cic-eth/cic_eth/db/migrations/default/versions/cd2052be6db2_convert_tx_index.py b/apps/cic-eth/cic_eth/db/migrations/default/versions/cd2052be6db2_convert_tx_index.py
new file mode 100644
index 00000000..5b59d734
--- /dev/null
+++ b/apps/cic-eth/cic_eth/db/migrations/default/versions/cd2052be6db2_convert_tx_index.py
@@ -0,0 +1,34 @@
+"""convert tx index
+
+Revision ID: cd2052be6db2
+Revises: 7cb65b893934
+Create Date: 2020-09-24 21:20:51.580500
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = 'cd2052be6db2'
+down_revision = '7cb65b893934'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+ op.create_table(
+ 'tx_convert_transfer',
+ sa.Column('id', sa.Integer, primary_key=True),
+ #sa.Column('approve_tx_hash', sa.String(66), nullable=False, unique=True),
+ sa.Column('convert_tx_hash', sa.String(66), nullable=False, unique=True),
+ sa.Column('transfer_tx_hash', sa.String(66), unique=True),
+# sa.Column('holder_address', sa.String(42), nullable=False),
+ sa.Column('recipient_address', sa.String(42), nullable=False),
+ )
+ op.create_index('idx_tx_convert_address', 'tx_convert_transfer', ['recipient_address'])
+
+
+def downgrade():
+ op.drop_index('idx_tx_convert_address')
+ op.drop_table('tx_convert_transfer')
diff --git a/apps/cic-eth/cic_eth/db/migrations/default/versions/df19f4e69676_add_tx_track.py b/apps/cic-eth/cic_eth/db/migrations/default/versions/df19f4e69676_add_tx_track.py
new file mode 100644
index 00000000..2c1ea138
--- /dev/null
+++ b/apps/cic-eth/cic_eth/db/migrations/default/versions/df19f4e69676_add_tx_track.py
@@ -0,0 +1,31 @@
+"""Add tx tracker record
+
+Revision ID: df19f4e69676
+Revises: 71708e943dbd
+Create Date: 2020-10-09 23:31:44.563498
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+# revision identifiers, used by Alembic.
+revision = 'df19f4e69676'
+down_revision = '71708e943dbd'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+# op.create_table(
+# 'tx',
+# sa.Column('id', sa.Integer, primary_key=True),
+# sa.Column('date_added', sa.DateTime, nullable=False),
+# sa.Column('tx_hash', sa.String(66), nullable=False, unique=True),
+# sa.Column('success', sa.Boolean(), nullable=False),
+# )
+ pass
+
+
+def downgrade():
+# op.drop_table('tx')
+ pass
diff --git a/apps/cic-eth/cic_eth/db/migrations/default/versions/e3b5330ee71c_.py b/apps/cic-eth/cic_eth/db/migrations/default/versions/e3b5330ee71c_.py
new file mode 100644
index 00000000..37cb3b81
--- /dev/null
+++ b/apps/cic-eth/cic_eth/db/migrations/default/versions/e3b5330ee71c_.py
@@ -0,0 +1,38 @@
+"""Add cached values for tx
+
+Revision ID: e3b5330ee71c
+Revises: df19f4e69676
+Create Date: 2020-10-10 00:17:07.094893
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = 'e3b5330ee71c'
+down_revision = 'df19f4e69676'
+branch_labels = None
+depends_on = None
+
+def upgrade():
+ op.create_table(
+ 'tx_cache',
+ sa.Column('id', sa.Integer, primary_key=True),
+# sa.Column('tx_id', sa.Integer, sa.ForeignKey('tx.id'), nullable=True),
+ sa.Column('otx_id', sa.Integer, sa.ForeignKey('otx.id'), nullable=True),
+ sa.Column('date_created', sa.DateTime, nullable=False),
+ sa.Column('date_updated', sa.DateTime, nullable=False),
+ sa.Column('source_token_address', sa.String(42), nullable=False),
+ sa.Column('destination_token_address', sa.String(42), nullable=False),
+ sa.Column('sender', sa.String(42), nullable=False),
+ sa.Column('recipient', sa.String(42), nullable=False),
+ sa.Column('from_value', sa.String(), nullable=False),
+ sa.Column('to_value', sa.String(), nullable=True),
+ sa.Column('block_number', sa.BIGINT(), nullable=True),
+ sa.Column('tx_index', sa.Integer, nullable=True),
+ )
+
+def downgrade():
+ op.drop_table('tx_cache')
+ pass
diff --git a/apps/cic-eth/cic_eth/db/migrations/postgresql/alembic.ini b/apps/cic-eth/cic_eth/db/migrations/postgresql/alembic.ini
new file mode 100644
index 00000000..1555f68c
--- /dev/null
+++ b/apps/cic-eth/cic_eth/db/migrations/postgresql/alembic.ini
@@ -0,0 +1,85 @@
+# A generic, single database configuration.
+
+[alembic]
+# path to migration scripts
+script_location = .
+
+# template used to generate migration files
+# file_template = %%(rev)s_%%(slug)s
+
+# timezone to use when rendering the date
+# within the migration file as well as the filename.
+# string value is passed to dateutil.tz.gettz()
+# leave blank for localtime
+# timezone =
+
+# max length of characters to apply to the
+# "slug" field
+# truncate_slug_length = 40
+
+# set to 'true' to run the environment during
+# the 'revision' command, regardless of autogenerate
+# revision_environment = false
+
+# set to 'true' to allow .pyc and .pyo files without
+# a source .py file to be detected as revisions in the
+# versions/ directory
+# sourceless = false
+
+# version location specification; this defaults
+# to migrations/versions. When using multiple version
+# directories, initial revisions must be specified with --version-path
+# version_locations = %(here)s/bar %(here)s/bat migrations/versions
+
+# the output encoding used when revision files
+# are written from script.py.mako
+# output_encoding = utf-8
+
+#sqlalchemy.url = driver://user:pass@localhost/dbname
+sqlalchemy.url = postgresql+psycopg2://postgres@localhost:5432/cic-eth
+
+[post_write_hooks]
+# post_write_hooks defines scripts or Python functions that are run
+# on newly generated revision scripts. See the documentation for further
+# detail and examples
+
+# format using "black" - use the console_scripts runner, against the "black" entrypoint
+# hooks=black
+# black.type=console_scripts
+# black.entrypoint=black
+# black.options=-l 79
+
+# Logging configuration
+[loggers]
+keys = root,sqlalchemy,alembic
+
+[handlers]
+keys = console
+
+[formatters]
+keys = generic
+
+[logger_root]
+level = WARN
+handlers = console
+qualname =
+
+[logger_sqlalchemy]
+level = WARN
+handlers =
+qualname = sqlalchemy.engine
+
+[logger_alembic]
+level = INFO
+handlers =
+qualname = alembic
+
+[handler_console]
+class = StreamHandler
+args = (sys.stderr,)
+level = NOTSET
+formatter = generic
+
+[formatter_generic]
+format = %(levelname)-5.5s [%(name)s] %(message)s
+datefmt = %H:%M:%S
diff --git a/apps/cic-eth/cic_eth/db/migrations/postgresql/env.py b/apps/cic-eth/cic_eth/db/migrations/postgresql/env.py
new file mode 100644
index 00000000..70518a2e
--- /dev/null
+++ b/apps/cic-eth/cic_eth/db/migrations/postgresql/env.py
@@ -0,0 +1,77 @@
+from logging.config import fileConfig
+
+from sqlalchemy import engine_from_config
+from sqlalchemy import pool
+
+from alembic import context
+
+# this is the Alembic Config object, which provides
+# access to the values within the .ini file in use.
+config = context.config
+
+# Interpret the config file for Python logging.
+# This line sets up loggers basically.
+fileConfig(config.config_file_name)
+
+# add your model's MetaData object here
+# for 'autogenerate' support
+# from myapp import mymodel
+# target_metadata = mymodel.Base.metadata
+target_metadata = None
+
+# other values from the config, defined by the needs of env.py,
+# can be acquired:
+# my_important_option = config.get_main_option("my_important_option")
+# ... etc.
+
+
+def run_migrations_offline():
+ """Run migrations in 'offline' mode.
+
+ This configures the context with just a URL
+ and not an Engine, though an Engine is acceptable
+ here as well. By skipping the Engine creation
+ we don't even need a DBAPI to be available.
+
+ Calls to context.execute() here emit the given string to the
+ script output.
+
+ """
+ url = config.get_main_option("sqlalchemy.url")
+ context.configure(
+ url=url,
+ target_metadata=target_metadata,
+ literal_binds=True,
+ dialect_opts={"paramstyle": "named"},
+ )
+
+ with context.begin_transaction():
+ context.run_migrations()
+
+
+def run_migrations_online():
+ """Run migrations in 'online' mode.
+
+ In this scenario we need to create an Engine
+ and associate a connection with the context.
+
+ """
+ connectable = engine_from_config(
+ config.get_section(config.config_ini_section),
+ prefix="sqlalchemy.",
+ poolclass=pool.NullPool,
+ )
+
+ with connectable.connect() as connection:
+ context.configure(
+ connection=connection, target_metadata=target_metadata
+ )
+
+ with context.begin_transaction():
+ context.run_migrations()
+
+
+if context.is_offline_mode():
+ run_migrations_offline()
+else:
+ run_migrations_online()
diff --git a/apps/cic-eth/cic_eth/db/migrations/postgresql/script.py.mako b/apps/cic-eth/cic_eth/db/migrations/postgresql/script.py.mako
new file mode 100644
index 00000000..2c015630
--- /dev/null
+++ b/apps/cic-eth/cic_eth/db/migrations/postgresql/script.py.mako
@@ -0,0 +1,24 @@
+"""${message}
+
+Revision ID: ${up_revision}
+Revises: ${down_revision | comma,n}
+Create Date: ${create_date}
+
+"""
+from alembic import op
+import sqlalchemy as sa
+${imports if imports else ""}
+
+# revision identifiers, used by Alembic.
+revision = ${repr(up_revision)}
+down_revision = ${repr(down_revision)}
+branch_labels = ${repr(branch_labels)}
+depends_on = ${repr(depends_on)}
+
+
+def upgrade():
+ ${upgrades if upgrades else "pass"}
+
+
+def downgrade():
+ ${downgrades if downgrades else "pass"}
diff --git a/apps/cic-eth/cic_eth/db/migrations/postgresql/versions/2a07b543335e_add_new_syncer_table.py b/apps/cic-eth/cic_eth/db/migrations/postgresql/versions/2a07b543335e_add_new_syncer_table.py
new file mode 100644
index 00000000..30ddb96f
--- /dev/null
+++ b/apps/cic-eth/cic_eth/db/migrations/postgresql/versions/2a07b543335e_add_new_syncer_table.py
@@ -0,0 +1,35 @@
+"""Add new syncer table
+
+Revision ID: 2a07b543335e
+Revises: a2e2aab8f331
+Create Date: 2020-12-27 09:35:44.017981
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '2a07b543335e'
+down_revision = 'a2e2aab8f331'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+ op.create_table(
+ 'blockchain_sync',
+ sa.Column('id', sa.Integer, primary_key=True),
+ sa.Column('blockchain', sa.String, nullable=False),
+ sa.Column('block_start', sa.Integer, nullable=False, default=0),
+ sa.Column('tx_start', sa.Integer, nullable=False, default=0),
+ sa.Column('block_cursor', sa.Integer, nullable=False, default=0),
+ sa.Column('tx_cursor', sa.Integer, nullable=False, default=0),
+ sa.Column('block_target', sa.Integer, nullable=True),
+ sa.Column('date_created', sa.DateTime, nullable=False),
+ sa.Column('date_updated', sa.DateTime),
+ )
+
+
+def downgrade():
+ op.drop_table('blockchain_sync')
diff --git a/apps/cic-eth/cic_eth/db/migrations/postgresql/versions/49b348246d70_add_nonce_index.py b/apps/cic-eth/cic_eth/db/migrations/postgresql/versions/49b348246d70_add_nonce_index.py
new file mode 100644
index 00000000..3abee1b6
--- /dev/null
+++ b/apps/cic-eth/cic_eth/db/migrations/postgresql/versions/49b348246d70_add_nonce_index.py
@@ -0,0 +1,29 @@
+"""Add nonce index
+
+Revision ID: 49b348246d70
+Revises: 52c7c59cd0b1
+Create Date: 2020-12-19 09:45:36.186446
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '49b348246d70'
+down_revision = '52c7c59cd0b1'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+ op.create_table(
+ 'nonce',
+ sa.Column('id', sa.Integer, primary_key=True),
+ sa.Column('address_hex', sa.String(42), nullable=False, unique=True),
+ sa.Column('nonce', sa.Integer, nullable=False),
+ )
+
+
+def downgrade():
+ op.drop_table('nonce')
diff --git a/apps/cic-eth/cic_eth/db/migrations/postgresql/versions/52c7c59cd0b1_add_account_roles.py b/apps/cic-eth/cic_eth/db/migrations/postgresql/versions/52c7c59cd0b1_add_account_roles.py
new file mode 100644
index 00000000..7aa74059
--- /dev/null
+++ b/apps/cic-eth/cic_eth/db/migrations/postgresql/versions/52c7c59cd0b1_add_account_roles.py
@@ -0,0 +1,31 @@
+"""Add account roles
+
+Revision ID: 52c7c59cd0b1
+Revises: 9c4bd7491015
+Create Date: 2020-12-19 07:21:38.249237
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '52c7c59cd0b1'
+down_revision = '9c4bd7491015'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+ op.create_table(
+ 'account_role',
+ sa.Column('id', sa.Integer, primary_key=True),
+ sa.Column('tag', sa.Text, nullable=False, unique=True),
+ sa.Column('address_hex', sa.String(42), nullable=False),
+ )
+ pass
+
+
+def downgrade():
+ op.drop_table('account_role')
+ pass
diff --git a/apps/cic-eth/cic_eth/db/migrations/postgresql/versions/6ac7a1dadc46_add_otx_state_log.py b/apps/cic-eth/cic_eth/db/migrations/postgresql/versions/6ac7a1dadc46_add_otx_state_log.py
new file mode 100644
index 00000000..f15834d9
--- /dev/null
+++ b/apps/cic-eth/cic_eth/db/migrations/postgresql/versions/6ac7a1dadc46_add_otx_state_log.py
@@ -0,0 +1,30 @@
+"""Add otx state log
+
+Revision ID: 6ac7a1dadc46
+Revises: 89e1e9baa53c
+Create Date: 2021-01-30 13:59:49.022373
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '6ac7a1dadc46'
+down_revision = '89e1e9baa53c'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+ op.create_table(
+ 'otx_state_log',
+ sa.Column('id', sa.Integer, primary_key=True),
+ sa.Column('otx_id', sa.Integer, sa.ForeignKey('otx.id'), nullable=False),
+ sa.Column('date', sa.DateTime, nullable=False),
+ sa.Column('status', sa.Integer, nullable=False),
+ )
+
+
+def downgrade():
+ op.drop_table('otx_state_log')
diff --git a/apps/cic-eth/cic_eth/db/migrations/postgresql/versions/71708e943dbd_add_attempts_and_version_log_for_otx.py b/apps/cic-eth/cic_eth/db/migrations/postgresql/versions/71708e943dbd_add_attempts_and_version_log_for_otx.py
new file mode 100644
index 00000000..3be687eb
--- /dev/null
+++ b/apps/cic-eth/cic_eth/db/migrations/postgresql/versions/71708e943dbd_add_attempts_and_version_log_for_otx.py
@@ -0,0 +1,31 @@
+"""Add attempts and version log for otx
+
+Revision ID: 71708e943dbd
+Revises: 7e8d7626e38f
+Create Date: 2020-09-26 14:41:19.298651
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '71708e943dbd'
+down_revision = '7e8d7626e38f'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+ op.create_table(
+ 'otx_attempts',
+ sa.Column('id', sa.Integer, primary_key=True),
+ sa.Column('otx_id', sa.Integer, sa.ForeignKey('otx.id'), nullable=False),
+ sa.Column('date', sa.DateTime, nullable=False),
+ )
+ pass
+
+
+def downgrade():
+ op.drop_table('otx_attempts')
+ pass
diff --git a/apps/cic-eth/cic_eth/db/migrations/postgresql/versions/7cb65b893934_add_blocknumber_pointer.py b/apps/cic-eth/cic_eth/db/migrations/postgresql/versions/7cb65b893934_add_blocknumber_pointer.py
new file mode 100644
index 00000000..74a97f83
--- /dev/null
+++ b/apps/cic-eth/cic_eth/db/migrations/postgresql/versions/7cb65b893934_add_blocknumber_pointer.py
@@ -0,0 +1,31 @@
+"""add blocknumber pointer
+
+Revision ID: 7cb65b893934
+Revises: 8593fa1ca0f4
+Create Date: 2020-09-24 19:29:13.543648
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '7cb65b893934'
+down_revision = '8593fa1ca0f4'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+ op.create_table(
+ 'watcher_state',
+ sa.Column('block_number', sa.Integer)
+ )
+ conn = op.get_bind()
+ conn.execute('INSERT INTO watcher_state (block_number) VALUES (0);')
+ pass
+
+
+def downgrade():
+ op.drop_table('watcher_state')
+ pass
diff --git a/apps/cic-eth/cic_eth/db/migrations/postgresql/versions/7e8d7626e38f_add_block_sync.py b/apps/cic-eth/cic_eth/db/migrations/postgresql/versions/7e8d7626e38f_add_block_sync.py
new file mode 100644
index 00000000..6924fa26
--- /dev/null
+++ b/apps/cic-eth/cic_eth/db/migrations/postgresql/versions/7e8d7626e38f_add_block_sync.py
@@ -0,0 +1,42 @@
+"""Add block sync
+
+Revision ID: 7e8d7626e38f
+Revises: cd2052be6db2
+Create Date: 2020-09-26 11:12:27.818524
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '7e8d7626e38f'
+down_revision = 'cd2052be6db2'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+ op.create_table(
+ 'block_sync',
+ sa.Column('id', sa.Integer, primary_key=True),
+ sa.Column('blockchain', sa.String, nullable=False, unique=True),
+ sa.Column('height_backlog', sa.Integer, nullable=False, default=0),
+ sa.Column('height_session', sa.Integer, nullable=False, default=0),
+ sa.Column('height_head', sa.Integer, nullable=False, default=0),
+ sa.Column('date_created', sa.DateTime, nullable=False),
+ sa.Column('date_updated', sa.DateTime),
+ )
+ op.drop_table('watcher_state')
+ pass
+
+
+def downgrade():
+ op.drop_table('block_sync')
+ op.create_table(
+ 'watcher_state',
+ sa.Column('block_number', sa.Integer)
+ )
+ conn = op.get_bind()
+ conn.execute('INSERT INTO watcher_state (block_number) VALUES (0);')
+ pass
diff --git a/apps/cic-eth/cic_eth/db/migrations/postgresql/versions/8593fa1ca0f4_add_transaction_queue.py b/apps/cic-eth/cic_eth/db/migrations/postgresql/versions/8593fa1ca0f4_add_transaction_queue.py
new file mode 100644
index 00000000..e9f9cf6a
--- /dev/null
+++ b/apps/cic-eth/cic_eth/db/migrations/postgresql/versions/8593fa1ca0f4_add_transaction_queue.py
@@ -0,0 +1,35 @@
+"""Add transaction queue
+
+Revision ID: 8593fa1ca0f4
+Revises:
+Create Date: 2020-09-22 21:56:42.117047
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '8593fa1ca0f4'
+down_revision = None
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+ op.create_table(
+ 'otx',
+ sa.Column('id', sa.Integer, primary_key=True),
+ sa.Column('date_created', sa.DateTime, nullable=False),
+ sa.Column('nonce', sa.Integer, nullable=False),
+ sa.Column('tx_hash', sa.String(66), nullable=False),
+ sa.Column('signed_tx', sa.Text, nullable=False),
+ sa.Column('status', sa.Integer, nullable=False, default=-9),
+ sa.Column('block', sa.Integer),
+ )
+ op.create_index('idx_otx_tx', 'otx', ['tx_hash'], unique=True)
+
+
+def downgrade():
+ op.drop_index('idx_otx_tx')
+ op.drop_table('otx')
diff --git a/apps/cic-eth/cic_eth/db/migrations/postgresql/versions/89e1e9baa53c_add_account_lock.py b/apps/cic-eth/cic_eth/db/migrations/postgresql/versions/89e1e9baa53c_add_account_lock.py
new file mode 100644
index 00000000..05517fd2
--- /dev/null
+++ b/apps/cic-eth/cic_eth/db/migrations/postgresql/versions/89e1e9baa53c_add_account_lock.py
@@ -0,0 +1,32 @@
+"""Add account lock
+
+Revision ID: 89e1e9baa53c
+Revises: 2a07b543335e
+Create Date: 2021-01-27 19:57:36.793882
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '89e1e9baa53c'
+down_revision = '2a07b543335e'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+ op.create_table(
+ 'lock',
+ sa.Column('id', sa.Integer, primary_key=True),
+ sa.Column("address", sa.String(42), nullable=True),
+ sa.Column('blockchain', sa.String),
+ sa.Column("flags", sa.BIGINT(), nullable=False, default=0),
+ sa.Column("date_created", sa.DateTime, nullable=False),
+ )
+ op.create_index('idx_chain_address', 'lock', ['blockchain', 'address'], unique=True)
+
+def downgrade():
+ op.drop_index('idx_chain_address')
+ op.drop_table('lock')
diff --git a/apps/cic-eth/cic_eth/db/migrations/postgresql/versions/9c4bd7491015_rename_block_sync_table.py b/apps/cic-eth/cic_eth/db/migrations/postgresql/versions/9c4bd7491015_rename_block_sync_table.py
new file mode 100644
index 00000000..f58721b2
--- /dev/null
+++ b/apps/cic-eth/cic_eth/db/migrations/postgresql/versions/9c4bd7491015_rename_block_sync_table.py
@@ -0,0 +1,26 @@
+"""Rename block sync table
+
+Revision ID: 9c4bd7491015
+Revises: 9daa16518a91
+Create Date: 2020-10-15 23:45:56.306898
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '9c4bd7491015'
+down_revision = '9daa16518a91'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+ op.rename_table('block_sync', 'otx_sync')
+ pass
+
+
+def downgrade():
+ op.rename_table('otx_sync', 'block_sync')
+ pass
diff --git a/apps/cic-eth/cic_eth/db/migrations/postgresql/versions/9daa16518a91_add_tx_sync_state.py b/apps/cic-eth/cic_eth/db/migrations/postgresql/versions/9daa16518a91_add_tx_sync_state.py
new file mode 100644
index 00000000..2c6cc0fe
--- /dev/null
+++ b/apps/cic-eth/cic_eth/db/migrations/postgresql/versions/9daa16518a91_add_tx_sync_state.py
@@ -0,0 +1,30 @@
+"""add tx sync state
+
+Revision ID: 9daa16518a91
+Revises: e3b5330ee71c
+Create Date: 2020-10-10 14:43:18.699276
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '9daa16518a91'
+down_revision = 'e3b5330ee71c'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+# op.create_table(
+# 'tx_sync',
+# sa.Column('tx', sa.String(66), nullable=False),
+# )
+# op.execute("INSERT INTO tx_sync VALUES('0x0000000000000000000000000000000000000000000000000000000000000000')")
+ pass
+
+
+def downgrade():
+# op.drop_table('tx_sync')
+ pass
diff --git a/apps/cic-eth/cic_eth/db/migrations/postgresql/versions/a2e2aab8f331_add_date_accessed_to_txcache.py b/apps/cic-eth/cic_eth/db/migrations/postgresql/versions/a2e2aab8f331_add_date_accessed_to_txcache.py
new file mode 100644
index 00000000..808a503c
--- /dev/null
+++ b/apps/cic-eth/cic_eth/db/migrations/postgresql/versions/a2e2aab8f331_add_date_accessed_to_txcache.py
@@ -0,0 +1,33 @@
+"""Add date accessed to txcache
+
+Revision ID: a2e2aab8f331
+Revises: 49b348246d70
+Create Date: 2020-12-24 18:58:06.137812
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = 'a2e2aab8f331'
+down_revision = '49b348246d70'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+ op.add_column(
+ 'tx_cache',
+ sa.Column(
+ 'date_checked',
+ sa.DateTime,
+ nullable=False
+ )
+ )
+ pass
+
+
+def downgrade():
+ op.drop_column('tx_cache', 'date_checked')
+ pass
diff --git a/apps/cic-eth/cic_eth/db/migrations/postgresql/versions/cd2052be6db2_convert_tx_index.py b/apps/cic-eth/cic_eth/db/migrations/postgresql/versions/cd2052be6db2_convert_tx_index.py
new file mode 100644
index 00000000..5b59d734
--- /dev/null
+++ b/apps/cic-eth/cic_eth/db/migrations/postgresql/versions/cd2052be6db2_convert_tx_index.py
@@ -0,0 +1,34 @@
+"""convert tx index
+
+Revision ID: cd2052be6db2
+Revises: 7cb65b893934
+Create Date: 2020-09-24 21:20:51.580500
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = 'cd2052be6db2'
+down_revision = '7cb65b893934'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+ op.create_table(
+ 'tx_convert_transfer',
+ sa.Column('id', sa.Integer, primary_key=True),
+ #sa.Column('approve_tx_hash', sa.String(66), nullable=False, unique=True),
+ sa.Column('convert_tx_hash', sa.String(66), nullable=False, unique=True),
+ sa.Column('transfer_tx_hash', sa.String(66), unique=True),
+# sa.Column('holder_address', sa.String(42), nullable=False),
+ sa.Column('recipient_address', sa.String(42), nullable=False),
+ )
+ op.create_index('idx_tx_convert_address', 'tx_convert_transfer', ['recipient_address'])
+
+
+def downgrade():
+ op.drop_index('idx_tx_convert_address')
+ op.drop_table('tx_convert_transfer')
diff --git a/apps/cic-eth/cic_eth/db/migrations/postgresql/versions/df19f4e69676_add_tx_track.py b/apps/cic-eth/cic_eth/db/migrations/postgresql/versions/df19f4e69676_add_tx_track.py
new file mode 100644
index 00000000..2c1ea138
--- /dev/null
+++ b/apps/cic-eth/cic_eth/db/migrations/postgresql/versions/df19f4e69676_add_tx_track.py
@@ -0,0 +1,31 @@
+"""Add tx tracker record
+
+Revision ID: df19f4e69676
+Revises: 71708e943dbd
+Create Date: 2020-10-09 23:31:44.563498
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+# revision identifiers, used by Alembic.
+revision = 'df19f4e69676'
+down_revision = '71708e943dbd'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+# op.create_table(
+# 'tx',
+# sa.Column('id', sa.Integer, primary_key=True),
+# sa.Column('date_added', sa.DateTime, nullable=False),
+# sa.Column('tx_hash', sa.String(66), nullable=False, unique=True),
+# sa.Column('success', sa.Boolean(), nullable=False),
+# )
+ pass
+
+
+def downgrade():
+# op.drop_table('tx')
+ pass
diff --git a/apps/cic-eth/cic_eth/db/migrations/postgresql/versions/e3b5330ee71c_.py b/apps/cic-eth/cic_eth/db/migrations/postgresql/versions/e3b5330ee71c_.py
new file mode 100644
index 00000000..ae53cf46
--- /dev/null
+++ b/apps/cic-eth/cic_eth/db/migrations/postgresql/versions/e3b5330ee71c_.py
@@ -0,0 +1,38 @@
+"""Add cached values for tx
+
+Revision ID: e3b5330ee71c
+Revises: df19f4e69676
+Create Date: 2020-10-10 00:17:07.094893
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = 'e3b5330ee71c'
+down_revision = 'df19f4e69676'
+branch_labels = None
+depends_on = None
+
+def upgrade():
+ op.create_table(
+ 'tx_cache',
+ sa.Column('id', sa.Integer, primary_key=True),
+# sa.Column('tx_id', sa.Integer, sa.ForeignKey('tx.id'), nullable=True),
+ sa.Column('otx_id', sa.Integer, sa.ForeignKey('otx.id'), nullable=True),
+ sa.Column('date_created', sa.DateTime, nullable=False),
+ sa.Column('date_updated', sa.DateTime, nullable=False),
+ sa.Column('source_token_address', sa.String(42), nullable=False),
+ sa.Column('destination_token_address', sa.String(42), nullable=False),
+ sa.Column('sender', sa.String(42), nullable=False),
+ sa.Column('recipient', sa.String(42), nullable=False),
+ sa.Column('from_value', sa.BIGINT(), nullable=False),
+ sa.Column('to_value', sa.BIGINT(), nullable=True),
+ sa.Column('block_number', sa.BIGINT(), nullable=True),
+ sa.Column('tx_index', sa.Integer, nullable=True),
+ )
+
+def downgrade():
+ op.drop_table('tx_cache')
+ pass
diff --git a/apps/cic-eth/cic_eth/db/models/base.py b/apps/cic-eth/cic_eth/db/models/base.py
new file mode 100644
index 00000000..153906af
--- /dev/null
+++ b/apps/cic-eth/cic_eth/db/models/base.py
@@ -0,0 +1,73 @@
+# third-party imports
+from sqlalchemy import Column, Integer
+from sqlalchemy.ext.declarative import declarative_base
+from sqlalchemy import create_engine
+from sqlalchemy.orm import sessionmaker
+
+Model = declarative_base(name='Model')
+
+
+class SessionBase(Model):
+ """The base object for all SQLAlchemy enabled models. All other models must extend this.
+ """
+ __abstract__ = True
+
+ id = Column(Integer, primary_key=True)
+
+ engine = None
+ """Database connection engine of the running aplication"""
+ sessionmaker = None
+ """Factory object responsible for creating sessions from the connection pool"""
+ transactional = True
+ """Whether the database backend supports query transactions. Should be explicitly set by initialization code"""
+ poolable = True
+ """Whether the database backend supports query transactions. Should be explicitly set by initialization code"""
+
+
+ @staticmethod
+ def create_session():
+ """Creates a new database session.
+ """
+ return SessionBase.sessionmaker()
+
+
+ @staticmethod
+ def _set_engine(engine):
+ """Sets the database engine static property
+ """
+ SessionBase.engine = engine
+ SessionBase.sessionmaker = sessionmaker(bind=SessionBase.engine)
+
+
+ @staticmethod
+ def connect(dsn, debug=False):
+ """Create new database connection engine and connect to database backend.
+
+ :param dsn: DSN string defining connection.
+ :type dsn: str
+ """
+ e = None
+ if SessionBase.poolable:
+ e = create_engine(
+ dsn,
+ max_overflow=50,
+ pool_pre_ping=True,
+ pool_size=20,
+ pool_recycle=10,
+ echo=debug,
+ )
+ else:
+ e = create_engine(
+ dsn,
+ echo=debug,
+ )
+
+ SessionBase._set_engine(e)
+
+
+ @staticmethod
+ def disconnect():
+ """Disconnect from database and free resources.
+ """
+ SessionBase.engine.dispose()
+ SessionBase.engine = None
diff --git a/apps/cic-eth/cic_eth/db/models/convert.py b/apps/cic-eth/cic_eth/db/models/convert.py
new file mode 100644
index 00000000..00956996
--- /dev/null
+++ b/apps/cic-eth/cic_eth/db/models/convert.py
@@ -0,0 +1,55 @@
+# third-party imports
+from sqlalchemy import Column, Enum, String, Integer
+from sqlalchemy.ext.hybrid import hybrid_method
+
+# local imports
+from .base import SessionBase
+from ..error import UnknownConvertError
+
+
+class TxConvertTransfer(SessionBase):
+ """Table describing a transfer of funds after conversion has been successfully performed.
+
+ :param convert_tx_hash: Transaction hash of convert transaction
+ :type convert_tx_hash: str, 0x-hex
+ :param recipient_address: Ethereum address of recipient of resulting token balance of conversion
+ :type recipient_address: str, 0x-hex
+ :param chain_str: Chain spec string representation
+ :type chain_str: str
+ """
+ __tablename__ = 'tx_convert_transfer'
+
+ #approve_tx_hash = Column(String(66))
+ convert_tx_hash = Column(String(66))
+ transfer_tx_hash = Column(String(66))
+ recipient_address = Column(String(42))
+
+
+ @hybrid_method
+ def transfer(self, transfer_tx_hash):
+ """Persists transaction hash of performed transfer. Setting this ends the lifetime of this record.
+ """
+ self.transfer_tx_hash = transfer_tx_hash
+
+
+ @staticmethod
+ def get(convert_tx_hash):
+ """Retrieves a convert transfer record by conversion transaction hash in a separate session.
+
+ :param convert_tx_hash: Transaction hash of convert transaction
+ :type convert_tx_hash: str, 0x-hex
+ """
+ session = SessionBase.create_session()
+ q = session.query(TxConvertTransfer)
+ q = q.filter(TxConvertTransfer.convert_tx_hash==convert_tx_hash)
+ r = q.first()
+ session.close()
+ if r == None:
+ raise UnknownConvertError(convert_tx_hash)
+ return r
+
+
+ def __init__(self, convert_tx_hash, recipient_address, chain_str):
+ self.convert_tx_hash = convert_tx_hash
+ self.recipient_address = recipient_address
+ self.chain_str = chain_str
diff --git a/apps/cic-eth/cic_eth/db/models/lock.py b/apps/cic-eth/cic_eth/db/models/lock.py
new file mode 100644
index 00000000..dbd0fd64
--- /dev/null
+++ b/apps/cic-eth/cic_eth/db/models/lock.py
@@ -0,0 +1,190 @@
+# standard imports
+import datetime
+import logging
+
+# third-party imports
+from sqlalchemy import Column, String, Integer, DateTime, ForeignKey
+from cic_registry import zero_address
+
+# local imports
+from cic_eth.db.models.base import SessionBase
+from cic_eth.db.models.tx import TxCache
+from cic_eth.db.models.otx import Otx
+
+logg = logging.getLogger()
+
+
+class Lock(SessionBase):
+ """Deactivate functionality on a global or per-account basis
+
+ """
+
+ __tablename__ = "lock"
+
+ blockchain = Column(String)
+ address = Column(String, ForeignKey('tx_cache.sender'))
+ flags = Column(Integer)
+ date_created = Column(DateTime, default=datetime.datetime.utcnow)
+ otx_id = Column(Integer, ForeignKey('otx.id'))
+
+
+ def chain(self):
+ """Get chain the cached instance represents.
+ """
+ return self.blockchain
+
+
+ @staticmethod
+ def set(chain_str, flags, address=zero_address, session=None, tx_hash=None):
+ """Sets flags associated with the given address and chain.
+
+ If a flags entry does not exist it is created.
+
+ Does not validate the address against any other tables or components.
+
+ Valid flags can be found in cic_eth.db.enum.LockEnum.
+
+ :param chain_str: Chain spec string representation
+ :type str: str
+ :param flags: Flags to set
+ :type flags: number
+ :param address: Ethereum address
+ :type address: str, 0x-hex
+ :param session: Database session, if None a separate session will be used.
+ :type session: SQLAlchemy session
+ :returns: New flag state of entry
+ :rtype: number
+ """
+ localsession = session
+ if localsession == None:
+ localsession = SessionBase.create_session()
+
+ q = localsession.query(Lock)
+ #q = q.join(TxCache, isouter=True)
+ q = q.filter(Lock.address==address)
+ q = q.filter(Lock.blockchain==chain_str)
+ lock = q.first()
+
+ if lock == None:
+ lock = Lock()
+ lock.flags = 0
+ lock.address = address
+ lock.blockchain = chain_str
+ if tx_hash != None:
+ q = localsession.query(Otx)
+ q = q.filter(Otx.tx_hash==tx_hash)
+ otx = q.first()
+ if otx != None:
+ lock.otx_id = otx.id
+
+ lock.flags |= flags
+ r = lock.flags
+
+ localsession.add(lock)
+ localsession.commit()
+
+ if session == None:
+ localsession.close()
+
+ return r
+
+
+ @staticmethod
+ def reset(chain_str, flags, address=zero_address, session=None):
+ """Resets flags associated with the given address and chain.
+
+ If the resulting flags entry value is 0, the entry will be deleted.
+
+ Does not validate the address against any other tables or components.
+
+ Valid flags can be found in cic_eth.db.enum.LockEnum.
+
+ :param chain_str: Chain spec string representation
+ :type str: str
+ :param flags: Flags to set
+ :type flags: number
+ :param address: Ethereum address
+ :type address: str, 0x-hex
+ :param session: Database session, if None a separate session will be used.
+ :type session: SQLAlchemy session
+ :returns: New flag state of entry
+ :rtype: number
+ """
+ localsession = session
+ if localsession == None:
+ localsession = SessionBase.create_session()
+
+ q = localsession.query(Lock)
+ #q = q.join(TxCache, isouter=True)
+ q = q.filter(Lock.address==address)
+ q = q.filter(Lock.blockchain==chain_str)
+ lock = q.first()
+
+ r = 0
+ if lock != None:
+ lock.flags &= ~flags
+ if lock.flags == 0:
+ localsession.delete(lock)
+ else:
+ localsession.add(lock)
+ r = lock.flags
+ localsession.commit()
+
+ if session == None:
+ localsession.close()
+
+ return r
+
+
+ @staticmethod
+ def check(chain_str, flags, address=zero_address, session=None):
+ """Checks whether all given flags are set for given address and chain.
+
+ Does not validate the address against any other tables or components.
+
+ Valid flags can be found in cic_eth.db.enum.LockEnum.
+
+ :param chain_str: Chain spec string representation
+ :type str: str
+ :param flags: Flags to set
+ :type flags: number
+ :param address: Ethereum address
+ :type address: str, 0x-hex
+ :param session: Database session, if None a separate session will be used.
+ :type session: SQLAlchemy session
+ :returns: Returns the value of all flags matched
+ :rtype: number
+ """
+
+ localsession = session
+ if localsession == None:
+ localsession = SessionBase.create_session()
+
+ q = localsession.query(Lock)
+ #q = q.join(TxCache, isouter=True)
+ q = q.filter(Lock.address==address)
+ q = q.filter(Lock.blockchain==chain_str)
+ q = q.filter(Lock.flags.op('&')(flags)==flags)
+ lock = q.first()
+ if session == None:
+ localsession.close()
+
+ r = 0
+ if lock != None:
+ r = lock.flags & flags
+ return r
+
+
+ @staticmethod
+ def check_aggregate(chain_str, flags, address, session=None):
+ localsession = session
+ if localsession == None:
+ localsession = SessionBase.create_session()
+
+ r = Lock.check(chain_str, flags, session=localsession)
+ r |= Lock.check(chain_str, flags, address=address, session=localsession)
+
+ if session == None:
+ localsession.close()
+
+ return r
diff --git a/apps/cic-eth/cic_eth/db/models/nonce.py b/apps/cic-eth/cic_eth/db/models/nonce.py
new file mode 100644
index 00000000..2a7ad004
--- /dev/null
+++ b/apps/cic-eth/cic_eth/db/models/nonce.py
@@ -0,0 +1,86 @@
+# standard imports
+import logging
+
+# third-party imports
+from sqlalchemy import Column, String, Integer
+
+# local imports
+from .base import SessionBase
+
+logg = logging.getLogger()
+
+
+class Nonce(SessionBase):
+ """Provides thread-safe nonce increments.
+ """
+ __tablename__ = 'nonce'
+
+ nonce = Column(Integer)
+ address_hex = Column(String(42))
+
+
+ @staticmethod
+ def get(address, session=None):
+ localsession = session
+ if localsession == None:
+ localsession = SessionBase.create_session()
+
+
+ q = localsession.query(Nonce)
+ q = q.filter(Nonce.address_hex==address)
+ nonce = q.first()
+
+ nonce_value = None
+ if nonce != None:
+ nonce_value = nonce.nonce;
+
+ if session == None:
+ localsession.close()
+
+ return nonce_value
+
+
+ @staticmethod
+ def __get(conn, address):
+ r = conn.execute("SELECT nonce FROM nonce WHERE address_hex = '{}'".format(address))
+ nonce = r.fetchone()
+ if nonce == None:
+ return None
+ return nonce[0]
+
+
+ @staticmethod
+ def __set(conn, address, nonce):
+ conn.execute("UPDATE nonce set nonce = {} WHERE address_hex = '{}'".format(nonce, address))
+
+
+ @staticmethod
+ def next(address, initial_if_not_exists=0):
+ """Generate next nonce for the given address.
+
+ If there is no previous nonce record for the address, the nonce may be initialized to a specified value, or 0 if no value has been given.
+
+ :param address: Associate Ethereum address
+ :type address: str, 0x-hex
+ :param initial_if_not_exists: Initial nonce value to set if no record exists
+ :type initial_if_not_exists: number
+ :returns: Nonce
+ :rtype: number
+ """
+ conn = Nonce.engine.connect()
+ if Nonce.transactional:
+ conn.execute('BEGIN')
+ conn.execute('LOCK TABLE nonce IN SHARE ROW EXCLUSIVE MODE')
+ nonce = Nonce.__get(conn, address)
+ logg.debug('get nonce {} for address {}'.format(nonce, address))
+ if nonce == None:
+ nonce = initial_if_not_exists
+ conn.execute("INSERT INTO nonce (nonce, address_hex) VALUES ({}, '{}')".format(nonce, address))
+ logg.debug('setting default nonce to {} for address {}'.format(nonce, address))
+ Nonce.__set(conn, address, nonce+1)
+ if Nonce.transactional:
+ conn.execute('COMMIT')
+ conn.close()
+ return nonce
+
+
diff --git a/apps/cic-eth/cic_eth/db/models/otx.py b/apps/cic-eth/cic_eth/db/models/otx.py
new file mode 100644
index 00000000..43b938b6
--- /dev/null
+++ b/apps/cic-eth/cic_eth/db/models/otx.py
@@ -0,0 +1,455 @@
+# standard imports
+import datetime
+import logging
+
+# third-party imports
+from sqlalchemy import Column, Enum, String, Integer, DateTime, Text, or_, ForeignKey
+from sqlalchemy.ext.hybrid import hybrid_property, hybrid_method
+
+# local imports
+from .base import SessionBase
+from cic_eth.db.enum import StatusEnum
+from cic_eth.db.error import TxStateChangeError
+#from cic_eth.eth.util import address_hex_from_signed_tx
+
+logg = logging.getLogger()
+
+
+class OtxStateLog(SessionBase):
+
+ __tablename__ = 'otx_state_log'
+
+ date = Column(DateTime, default=datetime.datetime.utcnow)
+ status = Column(Integer)
+ otx_id = Column(Integer, ForeignKey('otx.id'))
+
+
+ def __init__(self, otx):
+ self.otx_id = otx.id
+ self.status = otx.status
+
+
+class Otx(SessionBase):
+ """Outgoing transactions with local origin.
+
+ :param nonce: Transaction nonce
+ :type nonce: number
+ :param address: Ethereum address of recipient - NOT IN USE, REMOVE
+ :type address: str
+ :param tx_hash: Tranasction hash
+ :type tx_hash: str, 0x-hex
+ :param signed_tx: Signed raw transaction data
+ :type signed_tx: str, 0x-hex
+ """
+ __tablename__ = 'otx'
+
+ tracing = False
+ """Whether to enable queue state tracing"""
+
+ nonce = Column(Integer)
+ date_created = Column(DateTime, default=datetime.datetime.utcnow)
+ tx_hash = Column(String(66))
+ signed_tx = Column(Text)
+ status = Column(Integer)
+ block = Column(Integer)
+
+
+ def __set_status(self, status, session=None):
+ localsession = session
+ if localsession == None:
+ localsession = SessionBase.create_session()
+
+ self.status = status
+ localsession.add(self)
+ localsession.flush()
+
+ if self.tracing:
+ self.__state_log(session=localsession)
+
+ if session==None:
+ localsession.commit()
+ localsession.close()
+
+
+ def set_block(self, block, session=None):
+ """Set block number transaction was mined in.
+
+ Only manipulates object, does not transaction or commit to backend.
+
+ :param block: Block number
+ :type block: number
+ :raises cic_eth.db.error.TxStateChangeError: State change represents a sequence of events that should not exist.
+ """
+ localsession = session
+ if localsession == None:
+ localsession = SessionBase.create_session()
+
+ if self.block != None:
+ raise TxStateChangeError('Attempted set block {} when block was already {}'.format(block, self.block))
+ self.block = block
+ localsession.add(self)
+ localsession.flush()
+
+ if session==None:
+ localsession.commit()
+ localsession.close()
+
+
+ def waitforgas(self, session=None):
+ """Marks transaction as suspended pending gas funding.
+
+ Only manipulates object, does not transaction or commit to backend.
+
+ :raises cic_eth.db.error.TxStateChangeError: State change represents a sequence of events that should not exist.
+ """
+ if self.status >= StatusEnum.SENT.value:
+ raise TxStateChangeError('WAITFORGAS cannot succeed final state, had {}'.format(StatusEnum(self.status).name))
+ self.__set_status(StatusEnum.WAITFORGAS, session)
+
+
+ def fubar(self, session=None):
+ """Marks transaction as "fubar." Any transaction marked this way is an anomaly and may be a symptom of a serious problem.
+
+ Only manipulates object, does not transaction or commit to backend.
+ """
+ self.__set_status(StatusEnum.FUBAR, session)
+
+
+ def reject(self, session=None):
+ """Marks transaction as "rejected," which means the node rejected sending the transaction to the network. The nonce has not been spent, and the transaction should be replaced.
+
+ Only manipulates object, does not transaction or commit to backend.
+ """
+ if self.status >= StatusEnum.SENT.value:
+ raise TxStateChangeError('REJECTED cannot succeed SENT or final state, had {}'.format(StatusEnum(self.status).name))
+ self.__set_status(StatusEnum.REJECTED, session)
+
+
+ def override(self, session=None):
+ """Marks transaction as manually overridden.
+
+ Only manipulates object, does not transaction or commit to backend.
+ """
+ if self.status >= StatusEnum.SENT.value:
+ raise TxStateChangeError('OVERRIDDEN cannot succeed SENT or final state, had {}'.format(StatusEnum(self.status).name))
+ self.__set_status(StatusEnum.OVERRIDDEN, session)
+
+
+ def retry(self, session=None):
+ """Marks transaction as ready to retry after a timeout following a sendfail or a completed gas funding.
+
+ Only manipulates object, does not transaction or commit to backend.
+
+ :raises cic_eth.db.error.TxStateChangeError: State change represents a sequence of events that should not exist.
+ """
+ if self.status != StatusEnum.SENT.value and self.status != StatusEnum.SENDFAIL.value:
+ raise TxStateChangeError('RETRY must follow SENT or SENDFAIL, but had {}'.format(StatusEnum(self.status).name))
+ self.__set_status(StatusEnum.RETRY, session)
+
+
+ def readysend(self, session=None):
+ """Marks transaction as ready for initial send attempt.
+
+ Only manipulates object, does not transaction or commit to backend.
+
+ :raises cic_eth.db.error.TxStateChangeError: State change represents a sequence of events that should not exist.
+ """
+ if self.status != StatusEnum.PENDING.value and self.status != StatusEnum.WAITFORGAS.value:
+ raise TxStateChangeError('READYSEND must follow PENDING or WAITFORGAS, but had {}'.format(StatusEnum(self.status).name))
+ self.__set_status(StatusEnum.READYSEND, session)
+
+
+ def sent(self, session=None):
+ """Marks transaction as having been sent to network.
+
+ Only manipulates object, does not transaction or commit to backend.
+
+ :raises cic_eth.db.error.TxStateChangeError: State change represents a sequence of events that should not exist.
+ """
+ if self.status > StatusEnum.SENT:
+ raise TxStateChangeError('SENT after {}'.format(StatusEnum(self.status).name))
+ self.__set_status(StatusEnum.SENT, session)
+
+
+ def sendfail(self, session=None):
+ """Marks that an attempt to send the transaction to the network has failed.
+
+ Only manipulates object, does not transaction or commit to backend.
+
+ :raises cic_eth.db.error.TxStateChangeError: State change represents a sequence of events that should not exist.
+ """
+ if self.status not in [StatusEnum.PENDING, StatusEnum.SENT, StatusEnum.WAITFORGAS]:
+ raise TxStateChangeError('SENDFAIL must follow SENT or PENDING, but had {}'.format(StatusEnum(self.status).name))
+ self.__set_status(StatusEnum.SENDFAIL, session)
+
+
+ def minefail(self, block, session=None):
+ """Marks that transaction was mined but code execution did not succeed.
+
+ Only manipulates object, does not transaction or commit to backend.
+
+ :param block: Block number transaction was mined in.
+ :type block: number
+ :raises cic_eth.db.error.TxStateChangeError: State change represents a sequence of events that should not exist.
+ """
+ if block != None:
+ self.block = block
+ if self.status != StatusEnum.SENT:
+ logg.warning('REVERTED should follow SENT, but had {}'.format(StatusEnum(self.status).name))
+ #if self.status != StatusEnum.PENDING and self.status != StatusEnum.OBSOLETED and self.status != StatusEnum.SENT:
+ #if self.status > StatusEnum.SENT:
+ # raise TxStateChangeError('REVERTED must follow OBSOLETED, PENDING or SENT, but had {}'.format(StatusEnum(self.status).name))
+ self.__set_status(StatusEnum.REVERTED, session)
+
+
+ def cancel(self, confirmed=False, session=None):
+ """Marks that the transaction has been succeeded by a new transaction with same nonce.
+
+ If set to confirmed, the previous state must be OBSOLETED, and will transition to CANCELLED - a finalized state. Otherwise, the state must follow a non-finalized state, and will be set to OBSOLETED.
+
+ Only manipulates object, does not transaction or commit to backend.
+
+ :param confirmed: Whether transition is to a final state.
+ :type confirmed: bool
+ :raises cic_eth.db.error.TxStateChangeError: State change represents a sequence of events that should not exist.
+ """
+ if confirmed:
+ if self.status != StatusEnum.OBSOLETED:
+ logg.warning('CANCELLED must follow OBSOLETED, but had {}'.format(StatusEnum(self.status).name))
+ #raise TxStateChangeError('CANCELLED must follow OBSOLETED, but had {}'.format(StatusEnum(self.status).name))
+ self.__set_status(StatusEnum.CANCELLED, session)
+ elif self.status != StatusEnum.OBSOLETED:
+ if self.status > StatusEnum.SENT:
+ logg.warning('OBSOLETED must follow PENDING, SENDFAIL or SENT, but had {}'.format(StatusEnum(self.status).name))
+ #raise TxStateChangeError('OBSOLETED must follow PENDING, SENDFAIL or SENT, but had {}'.format(StatusEnum(self.status).name))
+ self.__set_status(StatusEnum.OBSOLETED, session)
+
+
+ def success(self, block, session=None):
+ """Marks that transaction was successfully mined.
+
+ Only manipulates object, does not transaction or commit to backend.
+
+ :param block: Block number transaction was mined in.
+ :type block: number
+ :raises cic_eth.db.error.TxStateChangeError: State change represents a sequence of events that should not exist.
+ """
+
+ if block != None:
+ self.block = block
+ if self.status != StatusEnum.SENT:
+ logg.error('SUCCESS should follow SENT, but had {}'.format(StatusEnum(self.status).name))
+ #raise TxStateChangeError('SUCCESS must follow SENT, but had {}'.format(StatusEnum(self.status).name))
+ self.__set_status(StatusEnum.SUCCESS, session)
+
+
+ @staticmethod
+ def get(status=0, limit=4096, status_exact=True):
+ """Returns outgoing transaction lists by status.
+
+ Status may either be matched exactly, or be an upper bound of the integer value of the status enum.
+
+ :param status: Status value to use in query
+ :type status: cic_eth.db.enum.StatusEnum
+ :param limit: Max results to return
+ :type limit: number
+ :param status_exact: Whether or not to perform exact status match
+ :type bool:
+ :returns: List of transaction hashes
+ :rtype: tuple, where first element is transaction hash
+ """
+ e = None
+ session = Otx.create_session()
+ if status_exact:
+ e = session.query(Otx.tx_hash).filter(Otx.status==status).order_by(Otx.date_created.asc()).limit(limit).all()
+ else:
+ e = session.query(Otx.tx_hash).filter(Otx.status<=status).order_by(Otx.date_created.asc()).limit(limit).all()
+ session.close()
+ return e
+
+
+ @staticmethod
+ def load(tx_hash):
+ """Retrieves the outgoing transaction record by transaction hash.
+
+ :param tx_hash: Transaction hash
+ :type tx_hash: str, 0x-hex
+ """
+ session = Otx.create_session()
+ q = session.query(Otx)
+ q = q.filter(Otx.tx_hash==tx_hash)
+ session.close()
+ return q.first()
+
+
+ @staticmethod
+ def account(account_address):
+ """Retrieves all transaction hashes for which the given Ethereum address is sender or recipient.
+
+ :param account_address: Ethereum address to use in query.
+ :type account_address: str, 0x-hex
+ :returns: Outgoing transactions
+ :rtype: tuple, where first element is transaction hash
+ """
+ session = Otx.create_session()
+ q = session.query(Otx.tx_hash)
+ q = q.join(TxCache)
+ q = q.filter(or_(TxCache.sender==account_address, TxCache.recipient==account_address))
+ txs = q.all()
+ session.close()
+ return list(txs)
+
+
+ def __state_log(self, session):
+ l = OtxStateLog(self)
+ session.add(l)
+
+
+ @staticmethod
+ def add(nonce, address, tx_hash, signed_tx, session=None):
+ localsession = session
+ if localsession == None:
+ localsession = SessionBase.create_session()
+
+ otx = Otx(nonce, address, tx_hash, signed_tx)
+ localsession.add(otx)
+ localsession.flush()
+ if otx.tracing:
+ otx.__state_log(session=localsession)
+ localsession.flush()
+
+ if session==None:
+ localsession.commit()
+ localsession.close()
+ return None
+
+ return otx
+
+
+ def __init__(self, nonce, address, tx_hash, signed_tx):
+ self.nonce = nonce
+ self.tx_hash = tx_hash
+ self.signed_tx = signed_tx
+ self.status = StatusEnum.PENDING
+ signed_tx_bytes = bytes.fromhex(signed_tx[2:])
+
+ # sender_address = address_hex_from_signed_tx(signed_tx_bytes)
+ # logg.debug('decoded tx {}'.format(sender_address))
+
+
+
+# TODO: Most of the methods on this object are obsolete, but it contains a static function for retrieving "expired" outgoing transactions that should be moved to Otx instead.
+class OtxSync(SessionBase):
+ """Obsolete
+ """
+ __tablename__ = 'otx_sync'
+
+ blockchain = Column(String)
+ block_height_backlog = Column(Integer)
+ tx_height_backlog = Column(Integer)
+ block_height_session = Column(Integer)
+ tx_height_session = Column(Integer)
+ block_height_head = Column(Integer)
+ tx_height_head = Column(Integer)
+ date_created = Column(DateTime, default=datetime.datetime.utcnow)
+ date_updated = Column(DateTime)
+
+
+ def backlog(self, block_height=None, tx_height=None):
+ #session = OtxSync.create_session()
+ if block_height != None:
+ if tx_height == None:
+ raise ValueError('tx height missing')
+ self.block_height_backlog = block_height
+ self.tx_height_backlog = tx_height
+ #session.add(self)
+ self.date_updated = datetime.datetime.utcnow()
+ #session.commit()
+ block_height = self.block_height_backlog
+ tx_height = self.tx_height_backlog
+ #session.close()
+ return (block_height, tx_height)
+
+
+ def session(self, block_height=None, tx_height=None):
+ #session = OtxSync.create_session()
+ if block_height != None:
+ if tx_height == None:
+ raise ValueError('tx height missing')
+ self.block_height_session = block_height
+ self.tx_height_session = tx_height
+ #session.add(self)
+ self.date_updated = datetime.datetime.utcnow()
+ #session.commit()
+ block_height = self.block_height_session
+ tx_height = self.tx_height_session
+ #session.close()
+ return (block_height, tx_height)
+
+
+ def head(self, block_height=None, tx_height=None):
+ #session = OtxSync.create_session()
+ if block_height != None:
+ if tx_height == None:
+ raise ValueError('tx height missing')
+ self.block_height_head = block_height
+ self.tx_height_head = tx_height
+ #session.add(self)
+ self.date_updated = datetime.datetime.utcnow()
+ #session.commit()
+ block_height = self.block_height_head
+ tx_height = self.tx_height_head
+ #session.close()
+ return (block_height, tx_height)
+
+
+ @hybrid_property
+ def synced(self):
+ #return self.block_height_session == self.block_height_backlog and self.tx_height_session == self.block_height_backlog
+ return self.block_height_session == self.block_height_backlog and self.tx_height_session == self.tx_height_backlog
+
+
+ @staticmethod
+ def load(blockchain_string, session):
+ q = session.query(OtxSync)
+ q = q.filter(OtxSync.blockchain==blockchain_string)
+ return q.first()
+
+
+ @staticmethod
+ def latest(nonce):
+ session = SessionBase.create_session()
+ otx = session.query(Otx).filter(Otx.nonce==nonce).order_by(Otx.created.desc()).first()
+ session.close()
+ return otx
+
+
+ @staticmethod
+ def get_expired(datetime_threshold):
+ session = SessionBase.create_session()
+ q = session.query(Otx)
+ q = q.filter(Otx.date_created
+
+"""
+# standard imports
+import os
+
+# local imports
+from .rpc import RpcClient
+
+registry_extra_identifiers = {
+ 'Faucet': '0x{:0<64s}'.format(b'Faucet'.hex()),
+ 'TransferApproval': '0x{:0<64s}'.format(b'TransferApproval'.hex()),
+ }
+
diff --git a/apps/cic-eth/cic_eth/eth/account.py b/apps/cic-eth/cic_eth/eth/account.py
new file mode 100644
index 00000000..01a9f6ef
--- /dev/null
+++ b/apps/cic-eth/cic_eth/eth/account.py
@@ -0,0 +1,365 @@
+# standard imports
+import logging
+
+# third-party imports
+import web3
+import celery
+from cic_registry import CICRegistry
+from cic_registry.chain import ChainSpec
+from erc20_single_shot_faucet import Faucet
+from cic_registry import zero_address
+
+# local import
+from cic_eth.eth import RpcClient
+from cic_eth.eth import registry_extra_identifiers
+from cic_eth.eth.task import sign_and_register_tx
+from cic_eth.eth.task import create_check_gas_and_send_task
+from cic_eth.eth.factory import TxFactory
+from cic_eth.db.models.nonce import Nonce
+from cic_eth.db.models.base import SessionBase
+from cic_eth.db.models.role import AccountRole
+from cic_eth.db.models.tx import TxCache
+from cic_eth.eth.util import unpack_signed_raw_tx
+from cic_eth.error import RoleMissingError
+
+#logg = logging.getLogger(__name__)
+logg = logging.getLogger()
+celery_app = celery.current_app
+
+
+class AccountTxFactory(TxFactory):
+ """Factory for creating account index contract transactions
+ """
+ def add(
+ self,
+ address,
+ chain_spec,
+ ):
+ """Register an Ethereum account address with the on-chain account registry
+
+ :param address: Ethereum account address to add
+ :type address: str, 0x-hex
+ :param chain_spec: Chain to build transaction for
+ :type chain_spec: cic_registry.chain.ChainSpec
+ :returns: Unsigned "AccountRegistry.add" transaction in standard Ethereum format
+ :rtype: dict
+ """
+
+ c = CICRegistry.get_contract(chain_spec, 'AccountRegistry')
+ f = c.function('add')
+ tx_add_buildable = f(
+ address,
+ )
+ gas = c.gas('add')
+ tx_add = tx_add_buildable.buildTransaction({
+ 'from': self.address,
+ 'gas': gas,
+ 'gasPrice': self.gas_price,
+ 'chainId': chain_spec.chain_id(),
+ 'nonce': self.next_nonce(),
+ 'value': 0,
+ })
+ return tx_add
+
+
+ def gift(
+ self,
+ address,
+ chain_spec,
+ ):
+ """Trigger the on-chain faucet to disburse tokens to the provided Ethereum account
+
+ :param address: Ethereum account address to gift to
+ :type address: str, 0x-hex
+ :param chain_spec: Chain to build transaction for
+ :type chain_spec: cic_registry.chain.ChainSpec
+ :returns: Unsigned "Faucet.giveTo" transaction in standard Ethereum format
+ :rtype: dict
+ """
+
+ c = CICRegistry.get_contract(chain_spec, 'Faucet')
+ f = c.function('giveTo')
+ tx_add_buildable = f(address)
+ gas = c.gas('add')
+ tx_add = tx_add_buildable.buildTransaction({
+ 'from': self.address,
+ 'gas': gas,
+ 'gasPrice': self.gas_price,
+ 'chainId': chain_spec.chain_id(),
+ 'nonce': self.next_nonce(),
+ 'value': 0,
+ })
+ return tx_add
+
+
+def unpack_register(data):
+ """Verifies that a transaction is an "AccountRegister.add" transaction, and extracts call parameters from it.
+
+ :param data: Raw input data from Ethereum transaction.
+ :type data: str, 0x-hex
+ :raises ValueError: Function signature does not match AccountRegister.add
+ :returns: Parsed parameters
+ :rtype: dict
+ """
+ f = data[2:10]
+ if f != '0a3b0a4f':
+ raise ValueError('Invalid account index register data ({})'.format(f))
+
+ d = data[10:]
+ return {
+ 'to': web3.Web3.toChecksumAddress('0x' + d[64-40:64]),
+ }
+
+
+def unpack_gift(data):
+ """Verifies that a transaction is a "Faucet.giveTo" transaction, and extracts call parameters from it.
+
+ :param data: Raw input data from Ethereum transaction.
+ :type data: str, 0x-hex
+ :raises ValueError: Function signature does not match AccountRegister.add
+ :returns: Parsed parameters
+ :rtype: dict
+ """
+ f = data[2:10]
+ if f != '63e4bff4':
+ raise ValueError('Invalid account index register data ({})'.format(f))
+
+ d = data[10:]
+ return {
+ 'to': web3.Web3.toChecksumAddress('0x' + d[64-40:64]),
+ }
+
+
+@celery_app.task()
+def create(password, chain_str):
+ """Creates and stores a new ethereum account in the keystore.
+
+ The password is passed on to the wallet backend, no encryption is performed in the task worker.
+
+ :param password: Password to encrypt private key with
+ :type password: str
+ :param chain_str: Chain spec string representation
+ :type chain_str: str
+ :returns: Ethereum address of newly created account
+ :rtype: str, 0x-hex
+ """
+ chain_spec = ChainSpec.from_chain_str(chain_str)
+ c = RpcClient(chain_spec)
+ a = c.w3.eth.personal.new_account(password)
+ logg.debug('created account {}'.format(a))
+
+ # Initialize nonce provider record for account
+ n = c.w3.eth.getTransactionCount(a, 'pending')
+ session = SessionBase.create_session()
+ o = session.query(Nonce).filter(Nonce.address_hex==a).first()
+ if o == None:
+ o = Nonce()
+ o.address_hex = a
+ o.nonce = n
+ session.add(o)
+ session.commit()
+ session.close()
+ return a
+
+
+@celery_app.task(bind=True, throws=(RoleMissingError,))
+def register(self, account_address, chain_str, writer_address=None):
+ """Creates a transaction to add the given address to the accounts index.
+
+ :param account_address: Ethereum address to add
+ :type account_address: str, 0x-hex
+ :param chain_str: Chain spec string representation
+ :type chain_str: str
+ :param writer_address: Specify address in keystore to sign transaction. Overrides local accounts role setting.
+ :type writer_address: str, 0x-hex
+ :raises RoleMissingError: Writer address not set and writer role not found.
+ :returns: The account_address input param
+ :rtype: str, 0x-hex
+ """
+ chain_spec = ChainSpec.from_chain_str(chain_str)
+
+ if writer_address == None:
+ writer_address = AccountRole.get_address('ACCOUNTS_INDEX_WRITER')
+
+ if writer_address == zero_address:
+ raise RoleMissingError(account_address)
+
+
+ logg.debug('adding account address {} to index; writer {}'.format(account_address, writer_address))
+ queue = self.request.delivery_info['routing_key']
+
+ c = RpcClient(chain_spec, holder_address=writer_address)
+ txf = AccountTxFactory(writer_address, c)
+
+ tx_add = txf.add(account_address, chain_spec)
+ (tx_hash_hex, tx_signed_raw_hex) = sign_and_register_tx(tx_add, chain_str, queue, 'cic_eth.eth.account.cache_account_data')
+
+ gas_budget = tx_add['gas'] * tx_add['gasPrice']
+
+ logg.debug('register user tx {}'.format(tx_hash_hex))
+ s = create_check_gas_and_send_task(
+ [tx_signed_raw_hex],
+ chain_str,
+ writer_address,
+ gas_budget,
+ tx_hashes_hex=[tx_hash_hex],
+ queue=queue,
+ )
+ s.apply_async()
+ return account_address
+
+
+@celery_app.task(bind=True)
+def gift(self, account_address, chain_str):
+ """Creates a transaction to invoke the faucet contract for the given address.
+
+ :param account_address: Ethereum address to give to
+ :type account_address: str, 0x-hex
+ :param chain_str: Chain spec string representation
+ :type chain_str: str
+ :returns: Raw signed transaction
+ :rtype: list with transaction as only element
+ """
+ chain_spec = ChainSpec.from_chain_str(chain_str)
+
+ logg.debug('gift account address {} to index'.format(account_address))
+ queue = self.request.delivery_info['routing_key']
+
+ c = RpcClient(chain_spec, holder_address=account_address)
+ txf = AccountTxFactory(account_address, c)
+
+ tx_add = txf.gift(account_address, chain_spec)
+ (tx_hash_hex, tx_signed_raw_hex) = sign_and_register_tx(tx_add, chain_str, queue, 'cic_eth.eth.account.cache_gift_data')
+
+ gas_budget = tx_add['gas'] * tx_add['gasPrice']
+
+ logg.debug('register user tx {}'.format(tx_hash_hex))
+ s = create_check_gas_and_send_task(
+ [tx_signed_raw_hex],
+ chain_str,
+ account_address,
+ gas_budget,
+ [tx_hash_hex],
+ queue=queue,
+ )
+ s.apply_async()
+ return [tx_signed_raw_hex]
+
+
+@celery_app.task(bind=True)
+def have(self, account, chain_str):
+ """Check whether the given account exists in keystore
+
+ :param account: Account to check
+ :type account: str, 0x-hex
+ :param chain_str: Chain spec string representation
+ :type chain_str: str
+ :returns: Account, or None if not exists
+ :rtype: Varies
+ """
+ c = RpcClient(account)
+ try:
+ c.w3.eth.sign(account, text='2a')
+ return account
+ except Exception as e:
+ logg.debug('cannot sign with {}: {}'.format(account, e))
+ return None
+
+
+@celery_app.task(bind=True)
+def role(self, account, chain_str):
+ """Return account role for address
+
+ :param account: Account to check
+ :type account: str, 0x-hex
+ :param chain_str: Chain spec string representation
+ :type chain_str: str
+ :returns: Account, or None if not exists
+ :rtype: Varies
+ """
+ return AccountRole.role_for(account)
+
+
+@celery_app.task()
+def cache_gift_data(
+ tx_hash_hex,
+ tx_signed_raw_hex,
+ chain_str,
+ ):
+ """Generates and commits transaction cache metadata for a Faucet.giveTo transaction
+
+ :param tx_hash_hex: Transaction hash
+ :type tx_hash_hex: str, 0x-hex
+ :param tx_signed_raw_hex: Raw signed transaction
+ :type tx_signed_raw_hex: str, 0x-hex
+ :param chain_str: Chain spec string representation
+ :type chain_str: str
+ :returns: Transaction hash and id of cache element in storage backend, respectively
+ :rtype: tuple
+ """
+ chain_spec = ChainSpec.from_chain_str(chain_str)
+ c = RpcClient(chain_spec)
+
+ tx_signed_raw_bytes = bytes.fromhex(tx_signed_raw_hex[2:])
+ tx = unpack_signed_raw_tx(tx_signed_raw_bytes, chain_spec.chain_id())
+ tx_data = unpack_gift(tx['data'])
+
+ tx_cache = TxCache(
+ tx_hash_hex,
+ tx['from'],
+ tx['to'],
+ zero_address,
+ zero_address,
+ 0,
+ 0,
+ )
+
+ session = SessionBase.create_session()
+ session.add(tx_cache)
+ session.commit()
+ cache_id = tx_cache.id
+ session.close()
+ return (tx_hash_hex, cache_id)
+
+
+@celery_app.task()
+def cache_account_data(
+ tx_hash_hex,
+ tx_signed_raw_hex,
+ chain_str,
+ ):
+ """Generates and commits transaction cache metadata for an AccountsIndex.add transaction
+
+ :param tx_hash_hex: Transaction hash
+ :type tx_hash_hex: str, 0x-hex
+ :param tx_signed_raw_hex: Raw signed transaction
+ :type tx_signed_raw_hex: str, 0x-hex
+ :param chain_str: Chain spec string representation
+ :type chain_str: str
+ :returns: Transaction hash and id of cache element in storage backend, respectively
+ :rtype: tuple
+ """
+
+ chain_spec = ChainSpec.from_chain_str(chain_str)
+ c = RpcClient(chain_spec)
+
+ tx_signed_raw_bytes = bytes.fromhex(tx_signed_raw_hex[2:])
+ tx = unpack_signed_raw_tx(tx_signed_raw_bytes, chain_spec.chain_id())
+ tx_data = unpack_register(tx['data'])
+
+ tx_cache = TxCache(
+ tx_hash_hex,
+ tx['from'],
+ tx['to'],
+ zero_address,
+ zero_address,
+ 0,
+ 0,
+ )
+
+ session = SessionBase.create_session()
+ session.add(tx_cache)
+ session.commit()
+ cache_id = tx_cache.id
+ session.close()
+ return (tx_hash_hex, cache_id)
diff --git a/apps/cic-eth/cic_eth/eth/bancor.py b/apps/cic-eth/cic_eth/eth/bancor.py
new file mode 100644
index 00000000..fdc01144
--- /dev/null
+++ b/apps/cic-eth/cic_eth/eth/bancor.py
@@ -0,0 +1,385 @@
+# standard imports
+import os
+import logging
+
+# third-party imports
+import celery
+import web3
+from cic_registry import CICRegistry
+from cic_registry.chain import ChainSpec
+
+# local imports
+from cic_eth.db import SessionBase
+from cic_eth.db.models.convert import TxConvertTransfer
+from cic_eth.db.models.otx import Otx
+from cic_eth.db.models.tx import TxCache
+from cic_eth.eth.task import sign_and_register_tx
+from cic_eth.eth.task import create_check_gas_and_send_task
+from cic_eth.eth.token import TokenTxFactory
+from cic_eth.eth.factory import TxFactory
+from cic_eth.eth.util import unpack_signed_raw_tx
+from cic_eth.eth.rpc import RpcClient
+
+celery_app = celery.current_app
+#logg = celery_app.log.get_default_logger()
+logg = logging.getLogger()
+
+contract_function_signatures = {
+ 'convert': 'f3898a97',
+ 'convert2': '569706eb',
+ }
+
+
+class BancorTxFactory(TxFactory):
+
+ """Factory for creating Bancor network transactions.
+ """
+ def convert(
+ self,
+ source_token_address,
+ destination_token_address,
+ reserve_address,
+ source_amount,
+ minimum_return,
+ chain_spec,
+ fee_beneficiary='0x0000000000000000000000000000000000000000',
+ fee_ppm=0,
+ ):
+ """Create a BancorNetwork "convert" transaction.
+
+ :param source_token_address: ERC20 contract address for token to convert from
+ :type source_token_address: str, 0x-hex
+ :param destination_token_address: ERC20 contract address for token to convert to
+ :type destination_token_address: str, 0x-hex
+ :param reserve_address: ERC20 contract address of Common reserve token
+ :type reserve_address: str, 0x-hex
+ :param source_amount: Amount of source tokens to convert
+ :type source_amount: int
+ :param minimum_return: Minimum amount of destination tokens to accept as result for conversion
+ :type source_amount: int
+ :return: Unsigned "convert" transaction in standard Ethereum format
+ :rtype: dict
+ """
+ network_contract = CICRegistry.get_contract(chain_spec, 'BancorNetwork')
+ network_gas = network_contract.gas('convert')
+ tx_convert_buildable = network_contract.contract.functions.convert2(
+ [
+ source_token_address,
+ source_token_address,
+ reserve_address,
+ destination_token_address,
+ destination_token_address,
+ ],
+ source_amount,
+ minimum_return,
+ fee_beneficiary,
+ fee_ppm,
+ )
+ tx_convert = tx_convert_buildable.buildTransaction({
+ 'from': self.address,
+ 'gas': network_gas,
+ 'gasPrice': self.gas_price,
+ 'chainId': chain_spec.chain_id(),
+ 'nonce': self.next_nonce(),
+ })
+ return tx_convert
+
+
+def unpack_convert(data):
+ f = data[2:10]
+ if f != contract_function_signatures['convert2']:
+ raise ValueError('Invalid convert data ({})'.format(f))
+
+ d = data[10:]
+ path = d[384:]
+ source = path[64-40:64]
+ destination = path[-40:]
+
+ amount = int(d[64:128], 16)
+ min_return = int(d[128:192], 16)
+ fee_recipient = d[192:256]
+ fee = int(d[256:320], 16)
+ return {
+ 'amount': amount,
+ 'min_return': min_return,
+ 'source_token': web3.Web3.toChecksumAddress('0x' + source),
+ 'destination_token': web3.Web3.toChecksumAddress('0x' + destination),
+ 'fee_recipient': fee_recipient,
+ 'fee': fee,
+ }
+
+
+
+# Kept for historical reference, it unpacks a convert call without fee parameters
+#def _unpack_convert_mint(data):
+# f = data[2:10]
+# if f != contract_function_signatures['convert2']:
+# raise ValueError('Invalid convert data ({})'.format(f))
+#
+# d = data[10:]
+# path = d[256:]
+# source = path[64-40:64]
+# destination = path[-40:]
+#
+# amount = int(d[64:128], 16)
+# min_return = int(d[128:192], 16)
+# return {
+# 'amount': amount,
+# 'min_return': min_return,
+# 'source_token': web3.Web3.toChecksumAddress('0x' + source),
+# 'destination_token': web3.Web3.toChecksumAddress('0x' + destination),
+# }
+
+
+@celery_app.task(bind=True)
+def convert_with_default_reserve(self, tokens, from_address, source_amount, minimum_return, to_address, chain_str):
+ """Performs a conversion between two liquid tokens using Bancor network.
+
+ :param tokens: Token pair, source and destination respectively
+ :type tokens: list of str, 0x-hex
+ :param from_address: Ethereum address of sender
+ :type from_address: str, 0x-hex
+ :param source_amount: Amount of source tokens to convert
+ :type source_amount: int
+ :param minimum_return: Minimum about of destination tokens to receive
+ :type minimum_return: int
+ """
+
+ chain_spec = ChainSpec.from_chain_str(chain_str)
+ queue = self.request.delivery_info['routing_key']
+
+ c = RpcClient(chain_spec, holder_address=from_address)
+
+ cr = CICRegistry.get_contract(chain_spec, 'BancorNetwork')
+ source_token = CICRegistry.get_address(chain_spec, tokens[0]['address'])
+ reserve_address = CICRegistry.get_contract(chain_spec, 'BNTToken', 'ERC20').address()
+
+ tx_factory = TokenTxFactory(from_address, c)
+
+ tx_approve_zero = tx_factory.approve(source_token.address(), cr.address(), 0, chain_spec)
+ (tx_approve_zero_hash_hex, tx_approve_zero_signed_hex) = sign_and_register_tx(tx_approve_zero, chain_str, queue, 'cic_eth.eth.token.otx_cache_approve')
+
+ tx_approve = tx_factory.approve(source_token.address(), cr.address(), source_amount, chain_spec)
+ (tx_approve_hash_hex, tx_approve_signed_hex) = sign_and_register_tx(tx_approve, chain_str, queue, 'cic_eth.eth.token.otx_cache_approve')
+
+ tx_factory = BancorTxFactory(from_address, c)
+ tx_convert = tx_factory.convert(
+ tokens[0]['address'],
+ tokens[1]['address'],
+ reserve_address,
+ source_amount,
+ minimum_return,
+ chain_spec,
+ )
+ (tx_convert_hash_hex, tx_convert_signed_hex) = sign_and_register_tx(tx_convert, chain_str, queue, 'cic_eth.eth.bancor.otx_cache_convert')
+
+ # TODO: consider moving save recipient to async task / chain it before the tx send
+ if to_address != None:
+ save_convert_recipient(tx_convert_hash_hex, to_address, chain_str)
+
+ s = create_check_gas_and_send_task(
+ [tx_approve_zero_signed_hex, tx_approve_signed_hex, tx_convert_signed_hex],
+ chain_str,
+ from_address,
+ tx_approve_zero['gasPrice'] * tx_approve_zero['gas'],
+ tx_hashes_hex=[tx_approve_hash_hex],
+ queue=queue,
+ )
+ s.apply_async()
+ return tx_convert_hash_hex
+
+
+#@celery_app.task()
+#def process_approval(tx_hash_hex):
+# t = session.query(TxConvertTransfer).query(TxConvertTransfer.approve_tx_hash==tx_hash_hex).first()
+# c = session.query(Otx).query(Otx.tx_hash==t.convert_tx_hash)
+# gas_limit = 8000000
+# gas_price = GasOracle.gas_price()
+#
+# # TODO: use celery group instead
+# s_queue = celery.signature(
+# 'cic_eth.queue.tx.create',
+# [
+# nonce,
+# c['address'], # TODO: check that this is in fact sender address
+# c['tx_hash'],
+# c['signed_tx'],
+# ]
+# )
+# s_queue.apply_async()
+#
+# s_check_gas = celery.signature(
+# 'cic_eth.eth.tx.check_gas',
+# [
+# c['address'],
+# [c['signed_tx']],
+# gas_limit * gas_price,
+# ]
+# )
+# s_send = celery.signature(
+# 'cic_eth.eth.tx.send',
+# [],
+# )
+#
+# s_set_sent = celery.signature(
+# 'cic_eth.queue.tx.set_sent_status',
+# [False],
+# )
+# s_send.link(s_set_sent)
+# s_check_gas.link(s_send)
+# s_check_gas.apply_async()
+# return tx_hash_hex
+
+
+
+@celery_app.task()
+def save_convert_recipient(convert_hash, recipient_address, chain_str):
+ """Registers the recipient target for a convert-and-transfer operation.
+
+ :param convert_hash: Transaction hash of convert operation
+ :type convert_hash: str, 0x-hex
+ :param recipient_address: Address of consequtive transfer recipient
+ :type recipient_address: str, 0x-hex
+ """
+ session = SessionBase.create_session()
+ t = TxConvertTransfer(convert_hash, recipient_address, chain_str)
+ session.add(t)
+ session.commit()
+ session.close()
+
+
+@celery_app.task()
+def save_convert_transfer(convert_hash, transfer_hash):
+ """Registers that the transfer part of a convert-and-transfer operation has been executed.
+
+ :param convert_hash: Transaction hash of convert operation
+ :type convert_hash: str, 0x-hex
+ :param convert_hash: Transaction hash of transfer operation
+ :type convert_hash: str, 0x-hex
+ :returns: transfer_hash,
+ :rtype: list, single str, 0x-hex
+ """
+ session = SessionBase.create_session()
+ t = TxConvertTransfer.get(convert_hash)
+ t.transfer(transfer_hash)
+ session.add(t)
+ session.commit()
+ session.close()
+ return [transfer_hash]
+
+
+# TODO: seems unused, consider removing
+@celery_app.task()
+def resolve_converters_by_tokens(tokens, chain_str):
+ """Return converters for a list of tokens.
+
+ :param tokens: Token addresses to look up
+ :type tokens: list of str, 0x-hex
+ :return: Addresses of matching converters
+ :rtype: list of str, 0x-hex
+ """
+ chain_spec = ChainSpec.from_chain_str(chain_str)
+ for t in tokens:
+ c = CICRegistry.get_contract(chain_spec, 'ConverterRegistry')
+ fn = c.function('getConvertersByAnchors')
+ try:
+ converters = fn([t['address']]).call()
+ except Exception as e:
+ raise e
+ t['converters'] = converters
+
+ return tokens
+
+
+@celery_app.task(bind=True)
+def transfer_converted(self, tokens, holder_address, receiver_address, value, tx_convert_hash_hex, chain_str):
+ """Execute the ERC20 transfer of a convert-and-transfer operation.
+
+ First argument is a list of tokens, to enable the task to be chained to the symbol to token address resolver function. However, it accepts only one token as argument.
+
+ :param tokens: Token addresses
+ :type tokens: list of str, 0x-hex
+ :param holder_address: Token holder address
+ :type holder_address: str, 0x-hex
+ :param holder_address: Token receiver address
+ :type holder_address: str, 0x-hex
+ :param value: Amount of token, in 'wei'
+ :type value: int
+ :raises TokenCountError: Either none or more then one tokens have been passed as tokens argument
+ :return: Transaction hash
+ :rtype: str, 0x-hex
+ """
+ # we only allow one token, one transfer
+ if len(tokens) != 1:
+ raise TokenCountError
+
+ chain_spec = ChainSpec.from_chain_str(chain_str)
+
+ queue = self.request.delivery_info['routing_key']
+
+ c = RpcClient(chain_spec, holder_address=holder_address)
+
+ # get transaction parameters
+ gas_price = c.gas_price()
+ tx_factory = TokenTxFactory(holder_address, c)
+
+ token_address = tokens[0]['address']
+ tx_transfer = tx_factory.transfer(
+ token_address,
+ receiver_address,
+ value,
+ chain_spec,
+ )
+ (tx_transfer_hash_hex, tx_transfer_signed_hex) = sign_and_register_tx(tx_transfer, chain_str, queue, 'cic_eth.eth.token.otx_cache_transfer')
+
+ # send transaction
+ logg.info('transfer converted token {} from {} to {} value {} {}'.format(token_address, holder_address, receiver_address, value, tx_transfer_signed_hex))
+ s = create_check_gas_and_send_task(
+ [tx_transfer_signed_hex],
+ chain_str,
+ holder_address,
+ tx_transfer['gasPrice'] * tx_transfer['gas'],
+ None,
+ queue,
+ )
+ s_save = celery.signature(
+ 'cic_eth.eth.bancor.save_convert_transfer',
+ [
+ tx_convert_hash_hex,
+ tx_transfer_hash_hex,
+ ],
+ queue=queue,
+ )
+ s_save.link(s)
+ s_save.apply_async()
+ return tx_transfer_hash_hex
+
+
+@celery_app.task()
+def otx_cache_convert(
+ tx_hash_hex,
+ tx_signed_raw_hex,
+ chain_str,
+ ):
+
+ chain_spec = ChainSpec.from_chain_str(chain_str)
+ tx_signed_raw_bytes = bytes.fromhex(tx_signed_raw_hex[2:])
+ tx = unpack_signed_raw_tx(tx_signed_raw_bytes, chain_spec.chain_id())
+ tx_data = unpack_convert(tx['data'])
+ logg.debug('tx data {}'.format(tx_data))
+
+ session = TxCache.create_session()
+ tx_cache = TxCache(
+ tx_hash_hex,
+ tx['from'],
+ tx['from'],
+ tx_data['source_token'],
+ tx_data['destination_token'],
+ tx_data['amount'],
+ tx_data['amount'],
+ )
+ session.add(tx_cache)
+ session.commit()
+ session.close()
+ return tx_hash_hex
+
diff --git a/apps/cic-eth/cic_eth/eth/factory.py b/apps/cic-eth/cic_eth/eth/factory.py
new file mode 100644
index 00000000..fef8a025
--- /dev/null
+++ b/apps/cic-eth/cic_eth/eth/factory.py
@@ -0,0 +1,41 @@
+# standard imports
+import logging
+
+# local imports
+from cic_registry import CICRegistry
+from cic_eth.eth.nonce import NonceOracle
+from cic_eth.eth import RpcClient
+
+logg = logging.getLogger(__name__)
+
+
+class TxFactory:
+ """Base class for transaction factory classes.
+
+ :param from_address: Signer address to create transaction on behalf of
+ :type from_address: str, 0x-hex
+ :param rpc_client: RPC connection object to use to acquire account nonce if no record in nonce cache
+ :type rpc_client: cic_eth.eth.rpc.RpcClient
+ """
+
+ gas_price = 100
+ """Gas price, updated between batches"""
+
+
+ def __init__(self, from_address, rpc_client):
+ self.address = from_address
+
+ self.default_nonce = rpc_client.w3.eth.getTransactionCount(from_address, 'pending')
+ self.nonce_oracle = NonceOracle(from_address, self.default_nonce)
+
+ TxFactory.gas_price = rpc_client.gas_price()
+ logg.debug('txfactory instance address {} gas price'.format(self.address, self.gas_price))
+
+
+ def next_nonce(self):
+ """Returns the current cached nonce value, and increments it for next transaction.
+
+ :returns: Nonce
+ :rtype: number
+ """
+ return self.nonce_oracle.next()
diff --git a/apps/cic-eth/cic_eth/eth/gas.py b/apps/cic-eth/cic_eth/eth/gas.py
new file mode 100644
index 00000000..5bbd13d3
--- /dev/null
+++ b/apps/cic-eth/cic_eth/eth/gas.py
@@ -0,0 +1,71 @@
+# standard imports
+import logging
+
+# local imports
+from cic_eth.db.models.role import AccountRole
+from cic_eth.db.models.base import SessionBase
+
+logg = logging.getLogger()
+
+
+class GasOracle():
+ """Provides gas pricing for transactions.
+
+ :param w3: Web3 object
+ :type w3: web3.Web3
+ """
+
+ __safe_threshold_amount_value = 2000000000 * 60000 * 3
+ __refill_amount_value = __safe_threshold_amount_value * 5
+ default_gas_limit = 21000
+
+ def __init__(self, w3):
+ self.w3 = w3
+ self.gas_price_current = w3.eth.gas_price()
+
+
+ def safe_threshold_amount(self):
+ """The gas balance threshold under which a new gas refill transaction should be initiated.
+
+ :returns: Gas token amount
+ :rtype: number
+ """
+ g = GasOracle.__safe_threshold_amount_value
+ logg.warning('gas safe threshold is currently hardcoded to {}'.format(g))
+ return g
+
+
+ def refill_amount(self):
+ """The amount of gas tokens to send in a gas refill transaction.
+
+ :returns: Gas token amount
+ :rtype: number
+ """
+ g = GasOracle.__refill_amount_value
+ logg.warning('gas refill amount is currently hardcoded to {}'.format(g))
+ return g
+
+
+ def gas_provider(self):
+ """Gas provider address.
+
+ :returns: Etheerum account address
+ :rtype: str, 0x-hex
+ """
+ return AccountRole.get_address('GAS_GIFTER')
+
+
+ def gas_price(self, category='safe'):
+ """Get projected gas price to use for a transaction at the current moment.
+
+ When the category parameter is implemented, it can be used to control the priority of a transaction in the network.
+
+ :param category: Bid level category to return price for. Currently has no effect.
+ :type category: str
+ :returns: Gas price
+ :rtype: number
+ """
+ #logg.warning('gas price hardcoded to category "safe"')
+ #g = 100
+ #return g
+ return self.gas_price_current
diff --git a/apps/cic-eth/cic_eth/eth/nonce.py b/apps/cic-eth/cic_eth/eth/nonce.py
new file mode 100644
index 00000000..6e8e0a75
--- /dev/null
+++ b/apps/cic-eth/cic_eth/eth/nonce.py
@@ -0,0 +1,23 @@
+# local imports
+from cic_eth.db.models.nonce import Nonce
+
+class NonceOracle():
+ """Ensures atomic nonce increments for all transactions across all tasks and threads.
+
+ :param address: Address to generate nonces for
+ :type address: str, 0x-hex
+ :param default_nonce: Initial nonce value to use if no nonce cache entry already exists
+ :type default_nonce: number
+ """
+ def __init__(self, address, default_nonce):
+ self.address = address
+ self.default_nonce = default_nonce
+
+
+ def next(self):
+ """Get next unique nonce.
+
+ :returns: Nonce
+ :rtype: number
+ """
+ return Nonce.next(self.address, self.default_nonce)
diff --git a/apps/cic-eth/cic_eth/eth/request.py b/apps/cic-eth/cic_eth/eth/request.py
new file mode 100644
index 00000000..8f1c6b96
--- /dev/null
+++ b/apps/cic-eth/cic_eth/eth/request.py
@@ -0,0 +1,194 @@
+# standard imports
+import logging
+
+# third-party imports
+import web3
+import celery
+from erc20_approval_escrow import TransferApproval
+from cic_registry import CICRegistry
+from cic_registry.chain import ChainSpec
+
+# local imports
+from cic_eth.db.models.tx import TxCache
+from cic_eth.db.models.base import SessionBase
+from cic_eth.eth import RpcClient
+from cic_eth.eth.factory import TxFactory
+from cic_eth.eth.task import sign_and_register_tx
+from cic_eth.eth.util import unpack_signed_raw_tx
+from cic_eth.eth.task import create_check_gas_and_send_task
+from cic_eth.error import TokenCountError
+
+celery_app = celery.current_app
+logg = logging.getLogger()
+
+contract_function_signatures = {
+ 'request': 'b0addede',
+ }
+
+
+class TransferRequestTxFactory(TxFactory):
+ """Factory for creating Transfer request transactions using the TransferApproval contract backend
+ """
+ def request(
+ self,
+ token_address,
+ beneficiary_address,
+ amount,
+ chain_spec,
+ ):
+ """Create a new TransferApproval.request transaction
+
+ :param token_address: Token to create transfer request for
+ :type token_address: str, 0x-hex
+ :param beneficiary_address: Beneficiary of token transfer
+ :type beneficiary_address: str, 0x-hex
+ :param amount: Amount of tokens to transfer
+ :type amount: number
+ :param chain_spec: Chain spec
+ :type chain_spec: cic_registry.chain.ChainSpec
+ :returns: Transaction in standard Ethereum format
+ :rtype: dict
+ """
+ transfer_approval = CICRegistry.get_contract(chain_spec, 'TransferApproval', 'TransferAuthorization')
+ fn = transfer_approval.function('createRequest')
+ tx_approval_buildable = fn(beneficiary_address, token_address, amount)
+ transfer_approval_gas = transfer_approval.gas('createRequest')
+
+ tx_approval = tx_approval_buildable.buildTransaction({
+ 'from': self.address,
+ 'gas': transfer_approval_gas,
+ 'gasPrice': self.gas_price,
+ 'chainId': chain_spec.chain_id(),
+ 'nonce': self.next_nonce(),
+ })
+ return tx_approval
+
+
+def unpack_transfer_approval_request(data):
+ """Verifies that a transaction is an "TransferApproval.request" transaction, and extracts call parameters from it.
+
+ :param data: Raw input data from Ethereum transaction.
+ :type data: str, 0x-hex
+ :raises ValueError: Function signature does not match AccountRegister.add
+ :returns: Parsed parameters
+ :rtype: dict
+ """
+ f = data[2:10]
+ if f != contract_function_signatures['request']:
+ raise ValueError('Invalid transfer request data ({})'.format(f))
+
+ d = data[10:]
+ return {
+ 'to': web3.Web3.toChecksumAddress('0x' + d[64-40:64]),
+ 'token': web3.Web3.toChecksumAddress('0x' + d[128-40:128]),
+ 'amount': int(d[128:], 16)
+ }
+
+
+@celery_app.task(bind=True)
+def transfer_approval_request(self, tokens, holder_address, receiver_address, value, chain_str):
+ """Creates a new transfer approval
+
+ :param tokens: Token to generate transfer request for
+ :type tokens: list with single token spec as dict
+ :param holder_address: Address to generate transfer on behalf of
+ :type holder_address: str, 0x-hex
+ :param receiver_address: Address to transfser tokens to
+ :type receiver_address: str, 0x-hex
+ :param value: Amount of tokens to transfer
+ :type value: number
+ :param chain_spec: Chain spec string representation
+ :type chain_spec: str
+ :raises cic_eth.error.TokenCountError: More than one token in tokens argument
+ :returns: Raw signed transaction
+ :rtype: list with transaction as only element
+ """
+
+ if len(tokens) != 1:
+ raise TokenCountError
+
+ chain_spec = ChainSpec.from_chain_str(chain_str)
+
+ queue = self.request.delivery_info['routing_key']
+
+ t = tokens[0]
+
+ c = RpcClient(holder_address)
+
+ txf = TransferRequestTxFactory(holder_address, c)
+
+ tx_transfer = txf.request(t['address'], receiver_address, value, chain_spec)
+ (tx_hash_hex, tx_signed_raw_hex) = sign_and_register_tx(tx_transfer, chain_str, queue, 'cic_eth.eth.request.otx_cache_transfer_approval_request')
+
+ gas_budget = tx_transfer['gas'] * tx_transfer['gasPrice']
+
+ s = create_check_gas_and_send_task(
+ [tx_signed_raw_hex],
+ chain_str,
+ holder_address,
+ gas_budget,
+ [tx_hash_hex],
+ queue,
+ )
+ s.apply_async()
+ return [tx_signed_raw_hex]
+
+
+@celery_app.task()
+def otx_cache_transfer_approval_request(
+ tx_hash_hex,
+ tx_signed_raw_hex,
+ chain_str,
+ ):
+ """Generates and commits transaction cache metadata for an TransferApproval.request transaction
+
+ :param tx_hash_hex: Transaction hash
+ :type tx_hash_hex: str, 0x-hex
+ :param tx_signed_raw_hex: Raw signed transaction
+ :type tx_signed_raw_hex: str, 0x-hex
+ :param chain_str: Chain spec string representation
+ :type chain_str: str
+ :returns: Transaction hash and id of cache element in storage backend, respectively
+ :rtype: tuple
+ """
+ chain_spec = ChainSpec.from_chain_str(chain_str)
+ tx_signed_raw_bytes = bytes.fromhex(tx_signed_raw_hex[2:])
+ tx = unpack_signed_raw_tx(tx_signed_raw_bytes, chain_spec.chain_id())
+ logg.debug('in otx acche transfer approval request')
+ (txc, cache_id) = cache_transfer_approval_request_data(tx_hash_hex, tx)
+ return txc
+
+
+@celery_app.task()
+def cache_transfer_approval_request_data(
+ tx_hash_hex,
+ tx,
+ ):
+ """Helper function for otx_cache_transfer_approval_request
+
+ :param tx_hash_hex: Transaction hash
+ :type tx_hash_hex: str, 0x-hex
+ :param tx: Signed raw transaction
+ :type tx: str, 0x-hex
+ :returns: Transaction hash and id of cache element in storage backend, respectively
+ :rtype: tuple
+ """
+ tx_data = unpack_transfer_approval_request(tx['data'])
+ logg.debug('tx approval request data {}'.format(tx_data))
+ logg.debug('tx approval request {}'.format(tx))
+
+ session = SessionBase.create_session()
+ tx_cache = TxCache(
+ tx_hash_hex,
+ tx['from'],
+ tx_data['to'],
+ tx_data['token'],
+ tx_data['token'],
+ tx_data['amount'],
+ tx_data['amount'],
+ )
+ session.add(tx_cache)
+ session.commit()
+ cache_id = tx_cache.id
+ session.close()
+ return (tx_hash_hex, cache_id)
diff --git a/apps/cic-eth/cic_eth/eth/rpc.py b/apps/cic-eth/cic_eth/eth/rpc.py
new file mode 100644
index 00000000..0d5486f3
--- /dev/null
+++ b/apps/cic-eth/cic_eth/eth/rpc.py
@@ -0,0 +1,39 @@
+# standard imports
+import logging
+
+# local imports
+from cic_eth.eth.gas import GasOracle
+
+logg = logging.getLogger()
+
+
+class RpcClient(GasOracle):
+ """RPC wrapper for web3 enabling gas calculation helpers and signer middleware.
+
+ :param chain_spec: Chain spec
+ :type chain_spec: cic_registry.chain.ChainSpec
+ :param holder_address: DEPRECATED Address of subject of the session.
+ :type holder_address: str, 0x-hex
+ """
+
+ signer_ipc_path = None
+ """Unix socket path to JSONRPC signer and keystore"""
+
+ web3_constructor = None
+ """Custom function to build a web3 object with middleware plugins"""
+
+
+ def __init__(self, chain_spec, holder_address=None):
+ (self.provider, w3) = RpcClient.web3_constructor()
+ super(RpcClient, self).__init__(w3)
+ self.chain_spec = chain_spec
+ if holder_address != None:
+ self.holder_address = holder_address
+ logg.info('gasprice {}'.format(self.gas_price()))
+
+
+ @staticmethod
+ def set_constructor(web3_constructor):
+ """Sets the constructor to use for building the web3 object.
+ """
+ RpcClient.web3_constructor = web3_constructor
diff --git a/apps/cic-eth/cic_eth/eth/task.py b/apps/cic-eth/cic_eth/eth/task.py
new file mode 100644
index 00000000..0aeb4371
--- /dev/null
+++ b/apps/cic-eth/cic_eth/eth/task.py
@@ -0,0 +1,136 @@
+# standard imports
+import logging
+
+# third-party imports
+import celery
+from cic_registry.chain import ChainSpec
+
+# local imports
+from cic_eth.eth import RpcClient
+from cic_eth.queue.tx import create as queue_create
+
+celery_app = celery.current_app
+logg = celery_app.log.get_default_logger()
+
+
+@celery_app.task()
+def sign_tx(tx, chain_str):
+ """Sign a single transaction against the given chain specification.
+
+ :param tx: Transaction in standard Ethereum format
+ :type tx: dict
+ :param chain_str: Chain spec string representation
+ :type chain_str: str
+ :returns: Transaction hash and raw signed transaction, respectively
+ :rtype: tuple
+ """
+ chain_spec = ChainSpec.from_chain_str(chain_str)
+ c = RpcClient(chain_spec)
+ tx_transfer_signed = c.w3.eth.sign_transaction(tx)
+ logg.debug('tx_transfer_signed {}'.format(tx_transfer_signed))
+ tx_hash = c.w3.keccak(hexstr=tx_transfer_signed['raw'])
+ tx_hash_hex = tx_hash.hex()
+ return (tx_hash_hex, tx_transfer_signed['raw'],)
+
+
+def sign_and_register_tx(tx, chain_str, queue, cache_task=None):
+ """Signs the provided transaction, and adds it to the transaction queue cache (with status PENDING).
+
+ :param tx: Standard ethereum transaction data
+ :type tx: dict
+ :param chain_str: Chain spec, string representation
+ :type chain_str: str
+ :param queue: Task queue
+ :type queue: str
+ :param cache_task: Cache task to call with signed transaction. If None, no task will be called.
+ :type cache_task: str
+ :returns: Tuple; Transaction hash, signed raw transaction data
+ :rtype: tuple
+ """
+ (tx_hash_hex, tx_signed_raw_hex) = sign_tx(tx, chain_str)
+
+ logg.debug('adding queue tx {}'.format(tx_hash_hex))
+
+# s = celery.signature(
+# 'cic_eth.queue.tx.create',
+# [
+# tx['nonce'],
+# tx['from'],
+# tx_hash_hex,
+# tx_signed_raw_hex,
+# chain_str,
+# ],
+# queue=queue,
+# )
+
+ # TODO: consider returning this as a signature that consequtive tasks can be linked to
+ queue_create(
+ tx['nonce'],
+ tx['from'],
+ tx_hash_hex,
+ tx_signed_raw_hex,
+ chain_str,
+ )
+
+ if cache_task != None:
+ logg.debug('adding cache task {} tx {}'.format(cache_task, tx_hash_hex))
+ s_cache = celery.signature(
+ cache_task,
+ [
+ tx_hash_hex,
+ tx_signed_raw_hex,
+ chain_str,
+ ],
+ queue=queue,
+ )
+ s_cache.apply_async()
+
+ return (tx_hash_hex, tx_signed_raw_hex,)
+
+
+# TODO: rename as we will not be sending task in the chain, this is the responsibility of the dispatcher
+def create_check_gas_and_send_task(tx_signed_raws_hex, chain_str, holder_address, gas, tx_hashes_hex=None, queue=None):
+ """Creates a celery task signature for a check_gas task that adds the task to the outgoing queue to be processed by the dispatcher.
+
+ If tx_hashes_hex is not spefified, a preceding task chained to check_gas must supply the transaction hashes as its return value.
+
+ :param tx_signed_raws_hex: Raw signed transaction data
+ :type tx_signed_raws_hex: list of str, 0x-hex
+ :param chain_str: Chain spec, string representation
+ :type chain_str: str
+ :param holder_address: Address sending the transactions
+ :type holder_address: str, 0x-hex
+ :param gas: Gas budget hint for transactions
+ :type gas: int
+ :param tx_hashes_hex: Transaction hashes
+ :type tx_hashes_hex: list of str, 0x-hex
+ :param queue: Task queue
+ :type queue: str
+ :returns: Signature of task chain
+ :rtype: celery.Signature
+ """
+ s_check_gas = None
+ if tx_hashes_hex != None:
+ s_check_gas = celery.signature(
+ 'cic_eth.eth.tx.check_gas',
+ [
+ tx_hashes_hex,
+ chain_str,
+ tx_signed_raws_hex,
+ holder_address,
+ gas,
+ ],
+ queue=queue,
+ )
+ else:
+ s_check_gas = celery.signature(
+ 'cic_eth.eth.tx.check_gas',
+ [
+ chain_str,
+ tx_signed_raws_hex,
+ holder_address,
+ gas,
+ ],
+ queue=queue,
+ )
+ return s_check_gas
diff --git a/apps/cic-eth/cic_eth/eth/token.py b/apps/cic-eth/cic_eth/eth/token.py
new file mode 100644
index 00000000..fac767e9
--- /dev/null
+++ b/apps/cic-eth/cic_eth/eth/token.py
@@ -0,0 +1,447 @@
+# standard imports
+import logging
+
+# third-party imports
+import celery
+import requests
+import web3
+from cic_registry import CICRegistry
+from cic_registry.chain import ChainSpec
+
+# platform imports
+from cic_eth.db.models.tx import TxCache
+from cic_eth.db.models.base import SessionBase
+from cic_eth.eth import RpcClient
+from cic_eth.error import TokenCountError, PermanentTxError, OutOfGasError, NotLocalTxError
+from cic_eth.eth.task import sign_and_register_tx
+from cic_eth.eth.task import create_check_gas_and_send_task
+from cic_eth.eth.factory import TxFactory
+from cic_eth.eth.util import unpack_signed_raw_tx
+
+celery_app = celery.current_app
+logg = logging.getLogger()
+
+# TODO: fetch from cic-contracts instead when implemented
+contract_function_signatures = {
+ 'transfer': 'a9059cbb',
+ 'approve': '095ea7b3',
+ 'transferfrom': '23b872dd',
+ }
+
+
+class TokenTxFactory(TxFactory):
+ """Factory for creating ERC20 token transactions.
+ """
+ def approve(
+ self,
+ token_address,
+ spender_address,
+ amount,
+ chain_spec,
+ ):
+ """Create an ERC20 "approve" transaction
+
+ :param token_address: ERC20 contract address
+ :type token_address: str, 0x-hex
+ :param spender_address: Address to approve spending for
+ :type spender_address: str, 0x-hex
+ :param amount: Amount of tokens to approve
+ :type amount: int
+ :param chain_spec: Chain spec
+ :type chain_spec: cic_registry.chain.ChainSpec
+ :returns: Unsigned "approve" transaction in standard Ethereum format
+ :rtype: dict
+ """
+ source_token = CICRegistry.get_address(chain_spec, token_address)
+ source_token_contract = source_token.contract
+ tx_approve_buildable = source_token_contract.functions.approve(
+ spender_address,
+ amount,
+ )
+ source_token_gas = source_token.gas('transfer')
+
+ tx_approve = tx_approve_buildable.buildTransaction({
+ 'from': self.address,
+ 'gas': source_token_gas,
+ 'gasPrice': self.gas_price,
+ 'chainId': chain_spec.chain_id(),
+ 'nonce': self.next_nonce(),
+ })
+ return tx_approve
+
+
+ def transfer(
+ self,
+ token_address,
+ receiver_address,
+ value,
+ chain_spec,
+ ):
+ """Create an ERC20 "transfer" transaction
+
+ :param token_address: ERC20 contract address
+ :type token_address: str, 0x-hex
+ :param receiver_address: Address to send tokens to
+ :type receiver_address: str, 0x-hex
+ :param amount: Amount of tokens to send
+ :type amount: int
+ :param chain_spec: Chain spec
+ :type chain_spec: cic_registry.chain.ChainSpec
+ :returns: Unsigned "transfer" transaction in standard Ethereum format
+ :rtype: dict
+ """
+ source_token = CICRegistry.get_address(chain_spec, token_address)
+ source_token_contract = source_token.contract
+ transfer_buildable = source_token_contract.functions.transfer(
+ receiver_address,
+ value,
+ )
+ source_token_gas = source_token.gas('transfer')
+
+ tx_transfer = transfer_buildable.buildTransaction(
+ {
+ 'from': self.address,
+ 'gas': source_token_gas,
+ 'gasPrice': self.gas_price,
+ 'chainId': chain_spec.chain_id(),
+ 'nonce': self.next_nonce(),
+ })
+ return tx_transfer
+
+
+def unpack_transfer(data):
+ """Verifies that a transaction is an "ERC20.transfer" transaction, and extracts call parameters from it.
+
+ :param data: Raw input data from Ethereum transaction.
+ :type data: str, 0x-hex
+ :raises ValueError: Function signature does not match AccountRegister.add
+ :returns: Parsed parameters
+ :rtype: dict
+ """
+ f = data[2:10]
+ if f != contract_function_signatures['transfer']:
+ raise ValueError('Invalid transfer data ({})'.format(f))
+
+ d = data[10:]
+ return {
+ 'to': web3.Web3.toChecksumAddress('0x' + d[64-40:64]),
+ 'amount': int(d[64:], 16)
+ }
+
+
+def unpack_transferfrom(data):
+ """Verifies that a transaction is an "ERC20.transferFrom" transaction, and extracts call parameters from it.
+
+ :param data: Raw input data from Ethereum transaction.
+ :type data: str, 0x-hex
+ :raises ValueError: Function signature does not match AccountRegister.add
+ :returns: Parsed parameters
+ :rtype: dict
+ """
+ f = data[2:10]
+ if f != contract_function_signatures['transferfrom']:
+ raise ValueError('Invalid transferFrom data ({})'.format(f))
+
+ d = data[10:]
+ return {
+ 'from': web3.Web3.toChecksumAddress('0x' + d[64-40:64]),
+ 'to': web3.Web3.toChecksumAddress('0x' + d[128-40:128]),
+ 'amount': int(d[128:], 16)
+ }
+
+
+def unpack_approve(data):
+ """Verifies that a transaction is an "ERC20.approve" transaction, and extracts call parameters from it.
+
+ :param data: Raw input data from Ethereum transaction.
+ :type data: str, 0x-hex
+ :raises ValueError: Function signature does not match AccountRegister.add
+ :returns: Parsed parameters
+ :rtype: dict
+ """
+ f = data[2:10]
+ if f != contract_function_signatures['approve']:
+ raise ValueError('Invalid approval data ({})'.format(f))
+
+ d = data[10:]
+ return {
+ 'to': web3.Web3.toChecksumAddress('0x' + d[64-40:64]),
+ 'amount': int(d[64:], 16)
+ }
+
+
+@celery_app.task()
+def balance(tokens, holder_address, chain_str):
+ """Return token balances for a list of tokens for given address
+
+ :param tokens: Token addresses
+ :type tokens: list of str, 0x-hex
+ :param holder_address: Token holder address
+ :type holder_address: str, 0x-hex
+ :param chain_str: Chain spec string representation
+ :type chain_str: str
+ :return: List of balances
+ :rtype: list of int
+ """
+ #abi = ContractRegistry.abi('ERC20Token')
+ chain_spec = ChainSpec.from_chain_str(chain_str)
+ balances = []
+ c = RpcClient(chain_spec)
+ for t in tokens:
+ #token = CICRegistry.get_address(t['address'])
+ #abi = token.abi()
+ #o = c.w3.eth.contract(abi=abi, address=t['address'])
+ o = CICRegistry.get_address(chain_spec, t['address']).contract
+ b = o.functions.balanceOf(holder_address).call()
+ logg.debug('balance {} for {}: {}'.format(t['address'], holder_address, b))
+ balances.append(b)
+ return b
+
+
+@celery_app.task(bind=True)
+def transfer(self, tokens, holder_address, receiver_address, value, chain_str):
+ """Transfer ERC20 tokens between addresses
+
+ First argument is a list of tokens, to enable the task to be chained to the symbol to token address resolver function. However, it accepts only one token as argument.
+
+ :raises TokenCountError: Either none or more then one tokens have been passed as tokens argument
+
+ :param tokens: Token addresses
+ :type tokens: list of str, 0x-hex
+ :param holder_address: Token holder address
+ :type holder_address: str, 0x-hex
+ :param receiver_address: Token receiver address
+ :type receiver_address: str, 0x-hex
+ :param value: Amount of token, in 'wei'
+ :type value: int
+ :param chain_str: Chain spec string representation
+ :type chain_str: str
+ :raises TokenCountError: More than one token is passed in tokens list
+ :return: Transaction hash for tranfer operation
+ :rtype: str, 0x-hex
+ """
+ # we only allow one token, one transfer
+ if len(tokens) != 1:
+ raise TokenCountError
+
+ chain_spec = ChainSpec.from_chain_str(chain_str)
+
+ queue = self.request.delivery_info['routing_key']
+
+ # retrieve the token interface
+ t = tokens[0]
+
+ c = RpcClient(chain_spec, holder_address=holder_address)
+
+ txf = TokenTxFactory(holder_address, c)
+
+ tx_transfer = txf.transfer(t['address'], receiver_address, value, chain_spec)
+ (tx_hash_hex, tx_signed_raw_hex) = sign_and_register_tx(tx_transfer, chain_str, queue, cache_task='cic_eth.eth.token.otx_cache_transfer')
+
+ gas_budget = tx_transfer['gas'] * tx_transfer['gasPrice']
+
+ s = create_check_gas_and_send_task(
+ [tx_signed_raw_hex],
+ chain_str,
+ holder_address,
+ gas_budget,
+ [tx_hash_hex],
+ queue,
+ )
+ s.apply_async()
+ return tx_hash_hex
+
+
+@celery_app.task(bind=True)
+def approve(self, tokens, holder_address, spender_address, value, chain_str):
+ """Approve ERC20 transfer on behalf of holder address
+
+ First argument is a list of tokens, to enable the task to be chained to the symbol to token address resolver function. However, it accepts only one token as argument.
+
+ :raises TokenCountError: Either none or more then one tokens have been passed as tokens argument
+
+ :param tokens: Token addresses
+ :type tokens: list of str, 0x-hex
+ :param holder_address: Token holder address
+ :type holder_address: str, 0x-hex
+ :param receiver_address: Token receiver address
+ :type receiver_address: str, 0x-hex
+ :param value: Amount of token, in 'wei'
+ :type value: int
+ :param chain_str: Chain spec string representation
+ :type chain_str: str
+ :raises TokenCountError: More than one token is passed in tokens list
+ :return: Transaction hash for tranfer operation
+ :rtype: str, 0x-hex
+ """
+ # we only allow one token, one transfer
+ if len(tokens) != 1:
+ raise TokenCountError
+
+ chain_spec = ChainSpec.from_chain_str(chain_str)
+
+ queue = self.request.delivery_info['routing_key']
+
+ # retrieve the token interface
+ t = tokens[0]
+
+ c = RpcClient(chain_spec, holder_address=holder_address)
+
+ txf = TokenTxFactory(holder_address, c)
+
+ tx_transfer = txf.approve(t['address'], spender_address, value, chain_spec)
+ (tx_hash_hex, tx_signed_raw_hex) = sign_and_register_tx(tx_transfer, chain_str, queue, cache_task='cic_eth.eth.token.otx_cache_approve')
+
+ gas_budget = tx_transfer['gas'] * tx_transfer['gasPrice']
+
+ s = create_check_gas_and_send_task(
+ [tx_signed_raw_hex],
+ chain_str,
+ holder_address,
+ gas_budget,
+ [tx_hash_hex],
+ queue,
+ )
+ s.apply_async()
+ return tx_hash_hex
+
+
+@celery_app.task()
+def resolve_tokens_by_symbol(token_symbols, chain_str):
+ """Returns contract addresses of an array of ERC20 token symbols
+
+ :param token_symbols: Token symbols to resolve
+ :type token_symbols: list of str
+ :param chain_str: Chain spec string representation
+ :type chain_str: str
+
+ :return: Respective token contract addresses
+ :rtype: list of str, 0x-hex
+ """
+ tokens = []
+ chain_spec = ChainSpec.from_chain_str(chain_str)
+ for token_symbol in token_symbols:
+ token = CICRegistry.get_token(chain_spec, token_symbol)
+ tokens.append({
+ 'address': token.address(),
+ #'converters': [],
+ })
+ return tokens
+
+
+@celery_app.task()
+def otx_cache_transfer(
+ tx_hash_hex,
+ tx_signed_raw_hex,
+ chain_str,
+ ):
+ """Generates and commits transaction cache metadata for an ERC20.transfer or ERC20.transferFrom transaction
+
+ :param tx_hash_hex: Transaction hash
+ :type tx_hash_hex: str, 0x-hex
+ :param tx_signed_raw_hex: Raw signed transaction
+ :type tx_signed_raw_hex: str, 0x-hex
+ :param chain_str: Chain spec string representation
+ :type chain_str: str
+ :returns: Transaction hash and id of cache element in storage backend, respectively
+ :rtype: tuple
+ """
+ chain_spec = ChainSpec.from_chain_str(chain_str)
+ tx_signed_raw_bytes = bytes.fromhex(tx_signed_raw_hex[2:])
+ tx = unpack_signed_raw_tx(tx_signed_raw_bytes, chain_spec.chain_id())
+ (txc, cache_id) = cache_transfer_data(tx_hash_hex, tx)
+ return txc
+
+
+@celery_app.task()
+def cache_transfer_data(
+ tx_hash_hex,
+ tx,
+ ):
+ """Helper function for otx_cache_transfer
+
+ :param tx_hash_hex: Transaction hash
+ :type tx_hash_hex: str, 0x-hex
+ :param tx: Signed raw transaction
+ :type tx: str, 0x-hex
+ :returns: Transaction hash and id of cache element in storage backend, respectively
+ :rtype: tuple
+ """
+ tx_data = unpack_transfer(tx['data'])
+ logg.debug('tx data {}'.format(tx_data))
+ logg.debug('tx {}'.format(tx))
+
+ session = SessionBase.create_session()
+ tx_cache = TxCache(
+ tx_hash_hex,
+ tx['from'],
+ tx_data['to'],
+ tx['to'],
+ tx['to'],
+ tx_data['amount'],
+ tx_data['amount'],
+ )
+ session.add(tx_cache)
+ session.commit()
+ cache_id = tx_cache.id
+ session.close()
+ return (tx_hash_hex, cache_id)
+
+
+@celery_app.task()
+def otx_cache_approve(
+ tx_hash_hex,
+ tx_signed_raw_hex,
+ chain_str,
+ ):
+ """Generates and commits transaction cache metadata for an ERC20.approve transaction
+
+ :param tx_hash_hex: Transaction hash
+ :type tx_hash_hex: str, 0x-hex
+ :param tx_signed_raw_hex: Raw signed transaction
+ :type tx_signed_raw_hex: str, 0x-hex
+ :param chain_str: Chain spec string representation
+ :type chain_str: str
+ :returns: Transaction hash and id of cache element in storage backend, respectively
+ :rtype: tuple
+ """
+ chain_spec = ChainSpec.from_chain_str(chain_str)
+ tx_signed_raw_bytes = bytes.fromhex(tx_signed_raw_hex[2:])
+ tx = unpack_signed_raw_tx(tx_signed_raw_bytes, chain_spec.chain_id())
+ (txc, cache_id) = cache_approve_data(tx_hash_hex, tx)
+ return txc
+
+
+@celery_app.task()
+def cache_approve_data(
+ tx_hash_hex,
+ tx,
+ ):
+ """Helper function for otx_cache_approve
+
+ :param tx_hash_hex: Transaction hash
+ :type tx_hash_hex: str, 0x-hex
+ :param tx: Signed raw transaction
+ :type tx: str, 0x-hex
+ :returns: Transaction hash and id of cache element in storage backend, respectively
+ :rtype: tuple
+ """
+ tx_data = unpack_approve(tx['data'])
+ logg.debug('tx data {}'.format(tx_data))
+ logg.debug('tx {}'.format(tx))
+
+ session = SessionBase.create_session()
+ tx_cache = TxCache(
+ tx_hash_hex,
+ tx['from'],
+ tx_data['to'],
+ tx['to'],
+ tx['to'],
+ tx_data['amount'],
+ tx_data['amount'],
+ )
+ session.add(tx_cache)
+ session.commit()
+ cache_id = tx_cache.id
+ session.close()
+ return (tx_hash_hex, cache_id)
diff --git a/apps/cic-eth/cic_eth/eth/tx.py b/apps/cic-eth/cic_eth/eth/tx.py
new file mode 100644
index 00000000..c6d72c5b
--- /dev/null
+++ b/apps/cic-eth/cic_eth/eth/tx.py
@@ -0,0 +1,681 @@
+# standard imports
+import logging
+
+# third-party imports
+import celery
+import requests
+import web3
+from cic_registry import zero_address
+from cic_registry.chain import ChainSpec
+
+# local imports
+from .rpc import RpcClient
+from cic_eth.db import Otx, SessionBase
+from cic_eth.db.models.tx import TxCache
+from cic_eth.db.models.lock import Lock
+from cic_eth.db.enum import LockEnum
+from cic_eth.error import PermanentTxError
+from cic_eth.error import TemporaryTxError
+from cic_eth.error import NotLocalTxError
+from cic_eth.queue.tx import create as queue_create
+from cic_eth.queue.tx import get_tx
+from cic_eth.queue.tx import get_nonce_tx
+from cic_eth.error import OutOfGasError
+from cic_eth.error import LockedError
+from cic_eth.eth.util import unpack_signed_raw_tx
+from cic_eth.eth.task import sign_and_register_tx, create_check_gas_and_send_task
+from cic_eth.eth.task import sign_tx
+from cic_eth.eth.nonce import NonceOracle
+from cic_eth.error import AlreadyFillingGasError
+from cic_eth.eth.util import tx_hex_string
+from cic_eth.admin.ctrl import lock_send
+
+celery_app = celery.current_app
+logg = logging.getLogger()
+
+MAX_NONCE_ATTEMPTS = 3
+
+
+# TODO this function is too long
+@celery_app.task(bind=True, throws=(OutOfGasError))
+def check_gas(self, tx_hashes, chain_str, txs=[], address=None, gas_required=None):
+ """Check the gas level of the sender address of a transaction.
+
+ If the account balance is not sufficient for the required gas, gas refill is requested and OutOfGasError raiser.
+
+ If account balance is sufficient, but level of gas before spend is below "safe" threshold, gas refill is requested, and execution continues normally.
+
+ :param tx_hashes: Transaction hashes due to be submitted
+ :type tx_hashes: list of str, 0x-hex
+ :param chain_str: Chain spec string representation
+ :type chain_str: str
+ :param txs: Signed raw transaction data, corresponding to tx_hashes
+ :type txs: list of str, 0x-hex
+ :param address: Sender address
+ :type address: str, 0x-hex
+ :param gas_required: Gas limit * gas price for transaction, (optional, if not set will be retrived from transaction data)
+ :type gas_required: int
+ :return: Signed raw transaction data list
+ :rtype: param txs, unchanged
+ """
+ if len(txs) == 0:
+ for i in range(len(tx_hashes)):
+ o = get_tx(tx_hashes[i])
+ txs.append(o['signed_tx'])
+ logg.debug('ooooo {}'.format(o))
+ if address == None:
+ address = o['address']
+
+ chain_spec = ChainSpec.from_chain_str(chain_str)
+
+ queue = self.request.delivery_info['routing_key']
+
+ #c = RpcClient(chain_spec, holder_address=address)
+ c = RpcClient(chain_spec)
+
+ # TODO: it should not be necessary to pass address explicitly, if not passed should be derived from the tx
+ balance = c.w3.eth.getBalance(address)
+ logg.debug('check gas txs {}'.format(tx_hashes))
+ logg.debug('address {} has gas {} needs {}'.format(address, balance, gas_required))
+
+ if gas_required > balance:
+ s_refill_gas = celery.signature(
+ 'cic_eth.eth.tx.refill_gas',
+ [
+ address,
+ chain_str,
+ ],
+ queue=queue,
+ )
+ s_refill_gas.apply_async()
+ wait_tasks = []
+ for tx_hash in tx_hashes:
+ s = celery.signature(
+ 'cic_eth.queue.tx.set_waitforgas',
+ [
+ tx_hash,
+ ],
+ queue=queue,
+ )
+ wait_tasks.append(s)
+ celery.group(wait_tasks)()
+ raise OutOfGasError('need to fill gas, required {}, had {}'.format(gas_required, balance))
+
+ safe_gas = c.safe_threshold_amount()
+ if balance < safe_gas:
+ s_refill_gas = celery.signature(
+ 'cic_eth.eth.tx.refill_gas',
+ [
+ address,
+ chain_str,
+ ],
+ queue=queue,
+ )
+ s_refill_gas.apply_async()
+ logg.debug('requested refill from {} to {}'.format(c.gas_provider(), address))
+ ready_tasks = []
+ for tx_hash in tx_hashes:
+ s = celery.signature(
+ 'cic_eth.queue.tx.set_ready',
+ [
+ tx_hash,
+ ],
+ queue=queue,
+ )
+ ready_tasks.append(s)
+ logg.debug('tasks {}'.format(ready_tasks))
+ celery.group(ready_tasks)()
+
+ return txs
+
+
+# TODO: chain chainable transactions that use hashes as inputs may be chained to this function to output signed txs instead.
+@celery_app.task(bind=True)
+def hashes_to_txs(self, tx_hashes):
+ """Return a list of raw signed transactions from the local transaction queue corresponding to a list of transaction hashes.
+
+ :param tx_hashes: Transaction hashes
+ :type tx_hashes: list of str, 0x-hex
+ :raises ValueError: Empty input list
+ :returns: Signed raw transactions
+ :rtype: list of str, 0x-hex
+ """
+ #logg = celery_app.log.get_default_logger()
+ if len(tx_hashes) == 0:
+ raise ValueError('no transaction to send')
+
+ queue = self.request.delivery_info['routing_key']
+
+ #otxs = ','.format("'{}'".format(tx_hash) for tx_hash in tx_hashes)
+
+ session = SessionBase.create_session()
+ q = session.query(Otx.signed_tx)
+ q = q.filter(Otx.tx_hash.in_(tx_hashes))
+ tx_tuples = q.all()
+ session.close()
+
+ def __head(x):
+ return x[0]
+
+ txs = []
+ for f in map(__head, tx_tuples):
+ txs.append(f)
+
+ return txs
+
+
+# TODO: Move this and send to subfolder submodule
+class ParityNodeHandler:
+ def __init__(self, chain_spec, queue):
+ self.chain_spec = chain_spec
+ self.chain_str = str(chain_spec)
+ self.queue = queue
+
+ def handle(self, exception, tx_hash_hex, tx_hex):
+ meth = self.handle_default
+ if isinstance(exception, (ValueError)):
+# s_debug = celery.signature(
+# 'cic_eth.admin.debug.out_tmp',
+# [tx_hash_hex, '{}: {}'.format(tx_hash_hex, exception)],
+# queue=queue,
+# )
+# s_debug.apply_async()
+ earg = exception.args[0]
+ if earg['code'] == -32010:
+ logg.debug('skipping lock for code {}'.format(earg['code']))
+ meth = self.handle_invalid_parameters
+ elif earg['code'] == -32602:
+ meth = self.handle_invalid_encoding
+ else:
+ meth = self.handle_invalid
+ elif isinstance(exception, (requests.exceptions.ConnectionError)):
+ meth = self.handle_connection
+ (t, e_fn, message) = meth(tx_hash_hex, tx_hex)
+ return (t, e_fn, '{} {}'.format(message, exception))
+
+
+ def handle_connection(self, tx_hash_hex, tx_hex):
+ s_set_sent = celery.signature(
+ 'cic_eth.queue.tx.set_sent_status',
+ [
+ tx_hash_hex,
+ True,
+ ],
+ queue=self.queue,
+ )
+ t = s_set_sent.apply_async()
+ return (t, TemporaryTxError, 'Sendfail {}'.format(tx_hex_string(tx_hex, self.chain_spec.chain_id())))
+
+
+ def handle_invalid_encoding(self, tx_hash_hex, tx_hex):
+ tx_bytes = bytes.fromhex(tx_hex[2:])
+ tx = unpack_signed_raw_tx(tx_bytes, self.chain_spec.chain_id())
+ s_lock = celery.signature(
+ 'cic_eth.admin.ctrl.lock_send',
+ [
+ tx_hash_hex,
+ self.chain_str,
+ tx['from'],
+ tx_hash_hex,
+ ],
+ queue=self.queue,
+ )
+ s_set_reject = celery.signature(
+ 'cic_eth.queue.tx.set_rejected',
+ [],
+ queue=self.queue,
+ )
+ nonce_txs = get_nonce_tx(tx['nonce'], tx['from'], self.chain_spec.chain_id())
+ attempts = len(nonce_txs)
+ if attempts < MAX_NONCE_ATTEMPTS:
+ logg.debug('nonce {} address {} retries {} < {}'.format(tx['nonce'], tx['from'], attempts, MAX_NONCE_ATTEMPTS))
+ s_resend = celery.signature(
+ 'cic_eth.eth.tx.resend_with_higher_gas',
+ [
+ self.chain_str,
+ None,
+ 1.01,
+ ],
+ queue=self.queue,
+ )
+ s_unlock = celery.signature(
+ 'cic_eth.admin.ctrl.unlock_send',
+ [
+ self.chain_str,
+ tx['from'],
+ ],
+ queue=self.queue,
+ )
+ s_resend.link(s_unlock)
+ s_set_reject.link(s_resend)
+
+ s_lock.link(s_set_reject)
+ t = s_lock.apply_async()
+ return (t, PermanentTxError, 'Reject invalid encoding {}'.format(tx_hex_string(tx_hex, self.chain_spec.chain_id())))
+
+
+ def handle_invalid_parameters(self, tx_hash_hex, tx_hex):
+ s_sync = celery.signature(
+ 'cic_eth.eth.tx.sync_tx',
+ [
+ tx_hash_hex,
+ self.chain_str,
+ ],
+ queue=self.queue,
+ )
+ t = s_sync.apply_async()
+ return (t, PermanentTxError, 'Reject invalid parameters {}'.format(tx_hex_string(tx_hex, self.chain_spec.chain_id())))
+
+
+ def handle_invalid(self, tx_hash_hex, tx_hex):
+ tx_bytes = bytes.fromhex(tx_hex[2:])
+ tx = unpack_signed_raw_tx(tx_bytes, self.chain_spec.chain_id())
+ s_lock = celery.signature(
+ 'cic_eth.admin.ctrl.lock_send',
+ [
+ tx_hash_hex,
+ self.chain_str,
+ tx['from'],
+ tx_hash_hex,
+ ],
+ queue=self.queue,
+ )
+ s_set_reject = celery.signature(
+ 'cic_eth.queue.tx.set_rejected',
+ [],
+ queue=self.queue,
+ )
+ s_lock.link(s_set_reject)
+ t = s_lock.apply_async()
+ return (t, PermanentTxError, 'Reject invalid {}'.format(tx_hex_string(tx_hex, self.chain_spec.chain_id())))
+
+
+ def handle_default(self, tx_hash_hex, tx_hex):
+ tx_bytes = bytes.fromhex(tx_hex[2:])
+ tx = unpack_signed_raw_tx(tx_bytes, self.chain_spec.chain_id())
+ s_lock = celery.signature(
+ 'cic_eth.admin.ctrl.lock_send',
+ [
+ tx_hash_hex,
+ self.chain_str,
+ tx['from'],
+ tx_hash_hex,
+ ],
+ queue=self.queue,
+ )
+ s_set_fubar = celery.signature(
+ 'cic_eth.queue.tx.set_fubar',
+ [],
+ queue=self.queue,
+ )
+ s_lock.link(s_set_fubar)
+ t = s_lock.apply_async()
+ return (t, PermanentTxError, 'Fubar {}'.format(tx_hex_string(tx_hex, self.chain_spec.chain_id())))
+
+
+@celery_app.task(bind=True)
+def send(self, txs, chain_str):
+ """Send transactions to the network.
+
+ If more than one transaction is passed to the task, it will spawn a new send task with the remaining transaction(s) after the first in the list has been processed.
+
+ Updates the outgoing transaction queue entry to SENT on successful send.
+
+ If a temporary error occurs, the queue entry is set to SENDFAIL.
+
+ If a permanent error occurs due to invalid transaction data, queue entry value is set to REJECTED.
+
+ Any other permanent error that isn't explicitly handled will get value FUBAR.
+
+ :param txs: Signed raw transaction data
+ :type txs: list of str, 0x-hex
+ :param chain_str: Chain spec, string representation
+ :type chain_str: str
+ :raises TemporaryTxError: If unable to connect to node
+ :raises PermanentTxError: If EVM execution fails immediately due to tx input, or if tx contents are invalid.
+ :return: transaction hash of sent transaction
+ :rtype: str, 0x-hex
+ """
+ if len(txs) == 0:
+ raise ValueError('no transaction to send')
+
+ chain_spec = ChainSpec.from_chain_str(chain_str)
+
+
+ tx_hex = txs[0]
+ logg.debug('send transaction {}'.format(tx_hex))
+
+ tx_hash = web3.Web3.keccak(hexstr=tx_hex)
+ tx_hash_hex = tx_hash.hex()
+
+ queue = self.request.delivery_info.get('routing_key', None)
+ if queue == None:
+ logg.debug('send tx {} has no queue', tx_hash)
+
+ c = RpcClient(chain_spec)
+ r = None
+ try:
+ r = c.w3.eth.send_raw_transaction(tx_hex)
+ except Exception as e:
+ logg.debug('e {}'.format(e))
+ raiser = ParityNodeHandler(chain_spec, queue)
+ (t, e, m) = raiser.handle(e, tx_hash_hex, tx_hex)
+ raise e(m)
+
+ s_set_sent = celery.signature(
+ 'cic_eth.queue.tx.set_sent_status',
+ [
+ tx_hash_hex,
+ False
+ ],
+ queue=queue,
+ )
+ s_set_sent.apply_async()
+
+ tx_tail = txs[1:]
+ if len(tx_tail) > 0:
+ s = celery.signature(
+ 'cic_eth.eth.tx.send',
+ [tx_tail],
+ queue=queue,
+ )
+ s.apply_async()
+
+ return r.hex()
+
+
+@celery_app.task(bind=True, throws=(AlreadyFillingGasError))
+def refill_gas(self, recipient_address, chain_str):
+ """Executes a native token transaction to fund the recipient's gas expenditures.
+
+ :param recipient_address: Recipient in need of gas
+ :type recipient_address: str, 0x-hex
+ :param chain_str: Chain spec, string representation
+ :type chain_str: str
+ :raises AlreadyFillingGasError: A gas refill transaction for this address is already executing
+ :returns: Transaction hash.
+ :rtype: str, 0x-hex
+ """
+ chain_spec = ChainSpec.from_chain_str(chain_str)
+
+ session = SessionBase.create_session()
+ q = session.query(Otx.tx_hash)
+ q = q.join(TxCache)
+ q = q.filter(Otx.status<=0)
+ q = q.filter(TxCache.from_value!='0x00')
+ q = q.filter(TxCache.recipient==recipient_address)
+ c = q.count()
+ session.close()
+ if c > 0:
+ raise AlreadyFillingGasError(recipient_address)
+
+ queue = self.request.delivery_info['routing_key']
+
+ c = RpcClient(chain_spec)
+ clogg = celery_app.log.get_default_logger()
+ logg.debug('refill gas from provider address {}'.format(c.gas_provider()))
+ default_nonce = c.w3.eth.getTransactionCount(c.gas_provider(), 'pending')
+ nonce_generator = NonceOracle(c.gas_provider(), default_nonce)
+ nonce = nonce_generator.next()
+ gas_price = c.gas_price()
+ gas_limit = c.default_gas_limit
+ refill_amount = c.refill_amount()
+ logg.debug('gas price {} nonce {}'.format(gas_price, nonce))
+
+ # create and sign transaction
+ tx_send_gas = {
+ 'from': c.gas_provider(),
+ 'to': recipient_address,
+ 'gas': gas_limit,
+ 'gasPrice': gas_price,
+ 'chainId': chain_spec.chain_id(),
+ 'nonce': nonce,
+ 'value': refill_amount,
+ 'data': '',
+ }
+ logg.debug('txsend_gas {}'.format(tx_send_gas))
+ tx_send_gas_signed = c.w3.eth.sign_transaction(tx_send_gas)
+ tx_hash = web3.Web3.keccak(hexstr=tx_send_gas_signed['raw'])
+ tx_hash_hex = tx_hash.hex()
+
+ # TODO: route this through sign_and_register_tx instead
+ logg.debug('adding queue refill gas tx {}'.format(tx_hash_hex))
+ queue_create(
+ nonce,
+ c.gas_provider(),
+ tx_hash_hex,
+ tx_send_gas_signed['raw'],
+ chain_str,
+ )
+
+ s_tx_cache = celery.signature(
+ 'cic_eth.eth.tx.cache_gas_refill_data',
+ [
+ tx_hash_hex,
+ tx_send_gas,
+ ],
+ queue=queue,
+ )
+ s_status = celery.signature(
+ 'cic_eth.queue.tx.set_ready',
+ [
+ tx_hash_hex,
+ ],
+ queue=queue,
+ )
+ celery.group(s_tx_cache, s_status)()
+ return tx_send_gas_signed['raw']
+
+
+@celery_app.task(bind=True)
+def resend_with_higher_gas(self, txold_hash_hex, chain_str, gas=None, default_factor=1.1):
+ """Create a new transaction from an existing one with same nonce and higher gas price.
+
+ :param txold_hash_hex: Transaction to re-create
+ :type txold_hash_hex: str, 0x-hex
+ :param chain_str: Chain spec, string representation
+ :type chain_str: str
+ :param gas: Explicitly use the specified gas amount
+ :type gas: number
+ :param default_factor: Default factor by which to increment the gas price by
+ :type default_factor: float
+ :raises NotLocalTxError: Transaction does not exist in the local queue
+ :returns: Transaction hash
+ :rtype: str, 0x-hex
+ """
+ session = SessionBase.create_session()
+ otx = session.query(Otx).filter(Otx.tx_hash==txold_hash_hex).first()
+ if otx == None:
+ session.close()
+ raise NotLocalTxError(txold_hash_hex)
+ session.close()
+
+ chain_spec = ChainSpec.from_chain_str(chain_str)
+ c = RpcClient(chain_spec)
+
+ tx_signed_raw_bytes = bytes.fromhex(otx.signed_tx[2:])
+ tx = unpack_signed_raw_tx(tx_signed_raw_bytes, chain_spec.chain_id())
+ logg.debug('otx {} {}'.format(tx, otx.signed_tx))
+
+ queue = self.request.delivery_info['routing_key']
+
+ logg.debug('before {}'.format(tx))
+ if gas != None:
+ tx['gasPrice'] = gas
+ else:
+ gas_price = c.gas_price()
+ if tx['gasPrice'] > gas_price:
+ logg.warning('Network gas price {} is lower than overdue tx gas price {}'.format(gas_price, tx['gasPrice']))
+ #tx['gasPrice'] = int(tx['gasPrice'] * default_factor)
+ tx['gasPrice'] += 1
+ else:
+ new_gas_price = int(tx['gasPrice'] * default_factor)
+ if gas_price > new_gas_price:
+ tx['gasPrice'] = gas_price
+ else:
+ tx['gasPrice'] = new_gas_price
+
+ logg.debug('after {}'.format(tx))
+
+ #(tx_hash_hex, tx_signed_raw_hex) = sign_and_register_tx(tx, chain_str, queue)
+ (tx_hash_hex, tx_signed_raw_hex) = sign_tx(tx, chain_str)
+ queue_create(
+ tx['nonce'],
+ tx['from'],
+ tx_hash_hex,
+ tx_signed_raw_hex,
+ chain_str,
+ )
+ TxCache.clone(txold_hash_hex, tx_hash_hex)
+
+ s = create_check_gas_and_send_task(
+ [tx_signed_raw_hex],
+ chain_str,
+ tx['from'],
+ tx['gasPrice'] * tx['gas'],
+ [tx_hash_hex],
+ queue=queue,
+ )
+ s.apply_async()
+ return tx_hash_hex
+
+
+@celery_app.task(bind=True, throws=(web3.exceptions.TransactionNotFound,))
+def sync_tx(self, tx_hash_hex, chain_str):
+
+ queue = self.request.delivery_info['routing_key']
+
+ chain_spec = ChainSpec.from_chain_str(chain_str)
+ c = RpcClient(chain_spec)
+
+ tx = c.w3.eth.getTransaction(tx_hash_hex)
+ rcpt = None
+ try:
+ rcpt = c.w3.eth.getTransactionReceipt(tx_hash_hex)
+ except web3.exceptions.TransactionNotFound as e:
+ pass
+
+ if rcpt != None:
+ success = rcpt['status'] == 1
+ logg.debug('sync tx {} mined block {} success {}'.format(tx_hash_hex, rcpt['blockNumber'], success))
+
+ s = celery.signature(
+ 'cic_eth.queue.tx.set_final_status',
+ [
+ tx_hash_hex,
+ rcpt['blockNumber'],
+ not success,
+ ],
+ queue=queue,
+ )
+ else:
+ logg.debug('sync tx {} mempool'.format(tx_hash_hex))
+
+ s = celery.signature(
+ 'cic_eth.queue.tx.set_sent_status',
+ [
+ tx_hash_hex,
+ ],
+ queue=queue,
+ )
+
+ s.apply_async()
+
+
+
+@celery_app.task(bind=True)
+def resume_tx(self, txpending_hash_hex, chain_str):
+ """Queue a suspended tranaction for (re)sending
+
+ :param txpending_hash_hex: Transaction hash
+ :type txpending_hash_hex: str, 0x-hex
+ :param chain_str: Chain spec, string representation
+ :type chain_str: str
+ :raises NotLocalTxError: Transaction does not exist in the local queue
+ :returns: Transaction hash
+ :rtype: str, 0x-hex
+ """
+
+ chain_spec = ChainSpec.from_chain_str(chain_str)
+
+ session = SessionBase.create_session()
+ r = session.query(Otx.signed_tx).filter(Otx.tx_hash==txpending_hash_hex).first()
+ session.close()
+ if r == None:
+ raise NotLocalTxError(txpending_hash_hex)
+
+ tx_signed_raw_hex = r[0]
+ tx_signed_bytes = bytes.fromhex(tx_signed_raw_hex[2:])
+ tx = unpack_signed_raw_tx(tx_signed_bytes, chain_spec.chain_id())
+
+ queue = self.request.delivery_info['routing_key']
+
+ s = create_check_gas_and_send_task(
+ [tx_signed_raw_hex],
+ chain_str,
+ tx['from'],
+ tx['gasPrice'] * tx['gas'],
+ [txpending_hash_hex],
+ queue=queue,
+ )
+ s.apply_async()
+ return txpending_hash_hex
+
+
+@celery_app.task()
+def otx_cache_parse_tx(
+ tx_hash_hex,
+ tx_signed_raw_hex,
+ chain_str,
+ ):
+ """Generates and commits transaction cache metadata for a gas refill transaction
+
+ :param tx_hash_hex: Transaction hash
+ :type tx_hash_hex: str, 0x-hex
+ :param tx_signed_raw_hex: Raw signed transaction
+ :type tx_signed_raw_hex: str, 0x-hex
+ :param chain_str: Chain spec string representation
+ :type chain_str: str
+ :returns: Transaction hash and id of cache element in storage backend, respectively
+ :rtype: tuple
+ """
+
+
+ chain_spec = ChainSpec.from_chain_str(chain_str)
+ c = RpcClient(chain_spec)
+ tx_signed_raw_bytes = bytes.fromhex(tx_signed_raw_hex[2:])
+ tx = unpack_signed_raw_tx(tx_signed_raw_bytes, chain_spec.chain_id())
+ (txc, cache_id) = cache_gas_refill_data(tx_hash_hex, tx)
+ return txc
+
+
+@celery_app.task()
+def cache_gas_refill_data(
+ tx_hash_hex,
+ tx,
+ ):
+ """Helper function for otx_cache_parse_tx
+
+ :param tx_hash_hex: Transaction hash
+ :type tx_hash_hex: str, 0x-hex
+ :param tx: Signed raw transaction
+ :type tx: str, 0x-hex
+ :returns: Transaction hash and id of cache element in storage backend, respectively
+ :rtype: tuple
+ """
+ tx_cache = TxCache(
+ tx_hash_hex,
+ tx['from'],
+ tx['to'],
+ zero_address,
+ zero_address,
+ tx['value'],
+ tx['value'],
+ )
+
+ session = SessionBase.create_session()
+ session.add(tx_cache)
+ session.commit()
+ cache_id = tx_cache.id
+ session.close()
+ return (tx_hash_hex, cache_id)
diff --git a/apps/cic-eth/cic_eth/eth/util.py b/apps/cic-eth/cic_eth/eth/util.py
new file mode 100644
index 00000000..4bd2dea6
--- /dev/null
+++ b/apps/cic-eth/cic_eth/eth/util.py
@@ -0,0 +1,102 @@
+# standard imports
+import logging
+import sha3
+import web3
+
+# third-party imports
+from rlp import decode as rlp_decode
+from rlp import encode as rlp_encode
+from eth_keys import KeyAPI
+
+logg = logging.getLogger()
+
+field_debugs = [
+ 'nonce',
+ 'gasPrice',
+ 'gas',
+ 'to',
+ 'value',
+ 'data',
+ 'v',
+ 'r',
+ 's',
+ ]
+
+
+def unpack_signed_raw_tx(tx_raw_bytes, chain_id):
+ d = rlp_decode(tx_raw_bytes)
+
+ logg.debug('decoding using chain id {}'.format(chain_id))
+ j = 0
+ for i in d:
+ logg.debug('decoded {}: {}'.format(field_debugs[j], i.hex()))
+ j += 1
+ vb = chain_id
+ if chain_id != 0:
+ v = int.from_bytes(d[6], 'big')
+ vb = v - (chain_id * 2) - 35
+ s = b''.join([d[7], d[8], bytes([vb])])
+ so = KeyAPI.Signature(signature_bytes=s)
+
+ h = sha3.keccak_256()
+ h.update(rlp_encode(d))
+ signed_hash = h.digest()
+
+ d[6] = chain_id
+ d[7] = b''
+ d[8] = b''
+
+ h = sha3.keccak_256()
+ h.update(rlp_encode(d))
+ unsigned_hash = h.digest()
+
+ p = so.recover_public_key_from_msg_hash(unsigned_hash)
+ a = p.to_checksum_address()
+ logg.debug('decoded recovery byte {}'.format(vb))
+ logg.debug('decoded address {}'.format(a))
+ logg.debug('decoded signed hash {}'.format(signed_hash.hex()))
+ logg.debug('decoded unsigned hash {}'.format(unsigned_hash.hex()))
+
+ to = d[3].hex() or None
+ if to != None:
+ to = web3.Web3.toChecksumAddress('0x' + to)
+
+ return {
+ 'from': a,
+ 'nonce': int.from_bytes(d[0], 'big'),
+ 'gasPrice': int.from_bytes(d[1], 'big'),
+ 'gas': int.from_bytes(d[2], 'big'),
+ 'to': to,
+ 'value': int.from_bytes(d[4], 'big'),
+ 'data': '0x' + d[5].hex(),
+ 'v': chain_id,
+ 'r': '0x' + s[:32].hex(),
+ 's': '0x' + s[32:64].hex(),
+ 'chainId': chain_id,
+ 'hash': '0x' + signed_hash.hex(),
+ 'hash_unsigned': '0x' + unsigned_hash.hex(),
+ }
+
+
+def unpack_signed_raw_tx_hex(tx_raw_hex, chain_id):
+ return unpack_signed_raw_tx(bytes.fromhex(tx_raw_hex[2:]), chain_id)
+
+
+# TODO: consider moving tx string representation generation from api_admin to here
+def tx_string(tx_raw_bytes, chain_id):
+ tx_unpacked = unpack_signed_raw_tx(tx_raw_bytes, chain_id)
+ return 'tx nonce {} from {} to {} hash {}'.format(
+ tx_unpacked['nonce'],
+ tx_unpacked['from'],
+ tx_unpacked['to'],
+ tx_unpacked['hash'],
+ )
+
+def tx_hex_string(tx_hex, chain_id):
+ if len(tx_hex) < 2:
+ raise ValueError('invalid data length')
+ elif tx_hex[:2] == '0x':
+ tx_hex = tx_hex[2:]
+
+ tx_raw_bytes = bytes.fromhex(tx_hex)
+ return tx_string(tx_raw_bytes, chain_id)
diff --git a/apps/cic-eth/cic_eth/queue/__init__.py b/apps/cic-eth/cic_eth/queue/__init__.py
new file mode 100644
index 00000000..8acee1b9
--- /dev/null
+++ b/apps/cic-eth/cic_eth/queue/__init__.py
@@ -0,0 +1,4 @@
+# third-party imports
+import celery
+
+from .tx import get_tx
diff --git a/apps/cic-eth/cic_eth/queue/tx.py b/apps/cic-eth/cic_eth/queue/tx.py
new file mode 100644
index 00000000..bcc2bed3
--- /dev/null
+++ b/apps/cic-eth/cic_eth/queue/tx.py
@@ -0,0 +1,654 @@
+# standard imports
+import logging
+import time
+import datetime
+
+# third-party imports
+import celery
+from sqlalchemy import or_
+from sqlalchemy import tuple_
+from sqlalchemy import func
+
+# local imports
+from cic_registry import CICRegistry
+from cic_eth.db.models.otx import Otx
+from cic_eth.db.models.otx import OtxStateLog
+from cic_eth.db.models.tx import TxCache
+from cic_eth.db.models.lock import Lock
+from cic_eth.db import SessionBase
+from cic_eth.db.enum import StatusEnum
+from cic_eth.db.enum import LockEnum
+from cic_eth.eth.util import unpack_signed_raw_tx # TODO: should not be in same sub-path as package that imports queue.tx
+from cic_eth.error import NotLocalTxError
+from cic_eth.error import LockedError
+
+celery_app = celery.current_app
+#logg = celery_app.log.get_default_logger()
+logg = logging.getLogger()
+
+
+@celery_app.task()
+def create(nonce, holder_address, tx_hash, signed_tx, chain_str, obsolete_predecessors=True):
+ """Create a new transaction queue record.
+
+ :param nonce: Transaction nonce
+ :type nonce: int
+ :param holder_address: Sender address
+ :type holder_address: str, 0x-hex
+ :param tx_hash: Transaction hash
+ :type tx_hash: str, 0x-hex
+ :param signed_tx: Signed raw transaction
+ :type signed_tx: str, 0x-hex
+ :param chain_str: Chain spec string representation to create transaction for
+ :type chain_str: str
+ :returns: transaction hash
+ :rtype: str, 0x-hash
+ """
+ session = SessionBase.create_session()
+ lock = Lock.check_aggregate(chain_str, LockEnum.QUEUE, holder_address, session=session)
+ if lock > 0:
+ session.close()
+ raise LockedError(lock)
+
+ o = Otx.add(
+ nonce=nonce,
+ address=holder_address,
+ tx_hash=tx_hash,
+ signed_tx=signed_tx,
+ session=session,
+ )
+ session.flush()
+
+ if obsolete_predecessors:
+ # TODO: obsolete previous txs from same holder with same nonce
+ q = session.query(Otx)
+ q = q.join(TxCache)
+ q = q.filter(Otx.nonce==nonce)
+ q = q.filter(TxCache.sender==holder_address)
+ q = q.filter(Otx.tx_hash!=tx_hash)
+ q = q.filter(Otx.status<=StatusEnum.SENT)
+
+ for otx in q.all():
+ logg.info('otx {} obsoleted by {}'.format(otx.tx_hash, tx_hash))
+ if otx.status == StatusEnum.SENT:
+ otx.cancel(False, session=session)
+ elif otx.status != StatusEnum.OBSOLETED:
+ otx.override(session=session)
+
+ session.commit()
+ session.close()
+ logg.debug('queue created nonce {} from {} hash {}'.format(nonce, holder_address, tx_hash))
+ return tx_hash
+
+
+# TODO: Replace set_* with single task for set status
+@celery_app.task()
+def set_sent_status(tx_hash, fail=False):
+ """Used to set the status after a send attempt
+
+ :param tx_hash: Transaction hash of record to modify
+ :type tx_hash: str, 0x-hex
+ :param fail: if True, will set a SENDFAIL status, otherwise a SENT status. (Default: False)
+ :type fail: boolean
+ :raises NotLocalTxError: If transaction not found in queue.
+ :returns: True if tx is known, False otherwise
+ :rtype: boolean
+ """
+ session = SessionBase.create_session()
+ o = session.query(Otx).filter(Otx.tx_hash==tx_hash).first()
+ if o == None:
+ logg.warning('not local tx, skipping {}'.format(tx_hash))
+ session.close()
+ return False
+
+ if fail:
+ o.sendfail(session=session)
+ else:
+ o.sent(session=session)
+
+ session.commit()
+ session.close()
+
+ return tx_hash
+
+
+@celery_app.task()
+def set_final_status(tx_hash, block=None, fail=False):
+ """Used to set the status of an incoming transaction result.
+
+ :param tx_hash: Transaction hash of record to modify
+ :type tx_hash: str, 0x-hex
+ :param block: Block number if final status represents a confirmation on the network
+ :type block: number
+ :param fail: if True, will set a SUCCESS status, otherwise a REVERTED status. (Default: False)
+ :type fail: boolean
+ :raises NotLocalTxError: If transaction not found in queue.
+ """
+ session = SessionBase.create_session()
+ q = session.query(
+ Otx.nonce.label('nonce'),
+ TxCache.sender.label('sender'),
+ Otx.id.label('otxid'),
+ )
+ q = q.join(TxCache)
+ q = q.filter(Otx.tx_hash==tx_hash)
+ o = q.first()
+
+ if o == None:
+ session.close()
+ raise NotLocalTxError('queue does not contain tx hash {}'.format(tx_hash))
+
+ session.flush()
+
+ nonce = o.nonce
+ sender = o.sender
+ otxid = o.otxid
+
+ q = session.query(Otx)
+ q = q.filter(Otx.tx_hash==tx_hash)
+ o = q.first()
+
+ if fail:
+ o.minefail(block, session=session)
+ else:
+ o.success(block, session=session)
+
+ q = session.query(Otx)
+ q = q.join(TxCache)
+ q = q.filter(Otx.nonce==nonce)
+ q = q.filter(TxCache.sender==sender)
+ q = q.filter(Otx.tx_hash!=tx_hash)
+
+ for otwo in q.all():
+ otwo.cancel(True, session=session)
+
+ session.commit()
+ session.close()
+
+ return tx_hash
+
+@celery_app.task()
+def set_cancel(tx_hash, manual=False):
+ """Used to set the status when a transaction is cancelled.
+
+ Will set the state to CANCELLED or OVERRIDDEN
+
+ :param tx_hash: Transaction hash of record to modify
+ :type tx_hash: str, 0x-hex
+ :param manual: If set, status will be OVERRIDDEN. Otherwise CANCELLED.
+ :type manual: boolean
+ :raises NotLocalTxError: If transaction not found in queue.
+ """
+
+ session = SessionBase.create_session()
+ o = session.query(Otx).filter(Otx.tx_hash==tx_hash).first()
+ if o == None:
+ session.close()
+ raise NotLocalTxError('queue does not contain tx hash {}'.format(tx_hash))
+
+ session.flush()
+
+ if manual:
+ o.override(session=session)
+ else:
+ o.cancel(session=session)
+
+ session.commit()
+ session.close()
+
+ return tx_hash
+
+
+@celery_app.task()
+def set_rejected(tx_hash):
+ """Used to set the status when the node rejects sending a transaction to network
+
+ Will set the state to REJECTED
+
+ :param tx_hash: Transaction hash of record to modify
+ :type tx_hash: str, 0x-hex
+ :raises NotLocalTxError: If transaction not found in queue.
+ """
+
+ session = SessionBase.create_session()
+ o = session.query(Otx).filter(Otx.tx_hash==tx_hash).first()
+ if o == None:
+ session.close()
+ raise NotLocalTxError('queue does not contain tx hash {}'.format(tx_hash))
+
+ session.flush()
+
+ o.reject(session=session)
+ session.commit()
+ session.close()
+
+ return tx_hash
+
+
+@celery_app.task()
+def set_fubar(tx_hash):
+ """Used to set the status when an unexpected error occurs.
+
+ Will set the state to FUBAR
+
+ :param tx_hash: Transaction hash of record to modify
+ :type tx_hash: str, 0x-hex
+ :raises NotLocalTxError: If transaction not found in queue.
+ """
+
+ session = SessionBase.create_session()
+ o = session.query(Otx).filter(Otx.tx_hash==tx_hash).first()
+ if o == None:
+ session.close()
+ raise NotLocalTxError('queue does not contain tx hash {}'.format(tx_hash))
+
+ session.flush()
+
+ o.fubar(session=session)
+ session.commit()
+ session.close()
+
+ return tx_hash
+
+@celery_app.task()
+def set_ready(tx_hash):
+ """Used to mark a transaction as ready to be sent to network
+
+ :param tx_hash: Transaction hash of record to modify
+ :type tx_hash: str, 0x-hex
+ :raises NotLocalTxError: If transaction not found in queue.
+ """
+ session = SessionBase.create_session()
+ o = session.query(Otx).filter(Otx.tx_hash==tx_hash).first()
+ if o == None:
+ session.close()
+ raise NotLocalTxError('queue does not contain tx hash {}'.format(tx_hash))
+ session.flush()
+
+ if o.status == StatusEnum.WAITFORGAS or o.status == StatusEnum.PENDING:
+ o.readysend(session=session)
+ else:
+ o.retry(session=session)
+
+ logg.debug('ot otx otx {} {}'.format(tx_hash, o))
+
+ session.add(o)
+ session.commit()
+ session.close()
+
+ return tx_hash
+
+
+@celery_app.task()
+def set_waitforgas(tx_hash):
+ """Used to set the status when a transaction must be deferred due to gas refill
+
+ Will set the state to WAITFORGAS
+
+ :param tx_hash: Transaction hash of record to modify
+ :type tx_hash: str, 0x-hex
+ :raises NotLocalTxError: If transaction not found in queue.
+ """
+
+ session = SessionBase.create_session()
+ o = session.query(Otx).filter(Otx.tx_hash==tx_hash).first()
+ if o == None:
+ session.close()
+ raise NotLocalTxError('queue does not contain tx hash {}'.format(tx_hash))
+
+ session.flush()
+
+ o.waitforgas(session=session)
+ session.commit()
+ session.close()
+
+ return tx_hash
+
+@celery_app.task()
+def get_state_log(tx_hash):
+
+ logs = []
+
+ session = SessionBase.create_session()
+
+ q = session.query(OtxStateLog)
+ q = q.join(Otx)
+ q = q.filter(Otx.tx_hash==tx_hash)
+ q = q.order_by(OtxStateLog.date.asc())
+ for l in q.all():
+ logs.append((l.date, l.status,))
+
+ session.close()
+
+ return logs
+
+
+@celery_app.task()
+def get_tx_cache(tx_hash):
+ """Returns an aggregate dictionary of outgoing transaction data and metadata
+
+ :param tx_hash: Transaction hash of record to modify
+ :type tx_hash: str, 0x-hex
+ :raises NotLocalTxError: If transaction not found in queue.
+ :returns: Transaction data
+ :rtype: dict
+ """
+ session = SessionBase.create_session()
+ q = session.query(Otx)
+ q = q.filter(Otx.tx_hash==tx_hash)
+ otx = q.first()
+
+ if otx == None:
+ session.close()
+ raise NotLocalTxError(tx_hash)
+
+ session.flush()
+
+ q = session.query(TxCache)
+ q = q.filter(TxCache.otx_id==otx.id)
+ txc = q.first()
+
+ session.close()
+
+ values = txc.values()
+ tx = {
+ 'tx_hash': otx.tx_hash,
+ 'signed_tx': otx.signed_tx,
+ 'nonce': otx.nonce,
+ 'status': StatusEnum(otx.status).name,
+ 'status_code': otx.status,
+ 'source_token': txc.source_token_address,
+ 'destination_token': txc.destination_token_address,
+ 'sender': txc.sender,
+ 'recipient': txc.recipient,
+ 'from_value': values[0],
+ 'to_value': values[1],
+ 'date_created': txc.date_created,
+ 'date_updated': txc.date_updated,
+ 'date_checked': txc.date_checked,
+ }
+
+ return tx
+
+
+@celery_app.task()
+def get_lock(address=None):
+ """Retrieve all active locks
+
+ If address is set, the query will look up the lock for the specified address only. A list of zero or one elements is returned, depending on whether a lock is set or not.
+
+ :param address: Get lock for only the specified address
+ :type address: str, 0x-hex
+ :returns: List of locks
+ :rtype: list of dicts
+ """
+ session = SessionBase.create_session()
+ q = session.query(
+ Lock.date_created,
+ Lock.address,
+ Lock.flags,
+ Otx.tx_hash,
+ )
+ q = q.join(Otx, isouter=True)
+ if address != None:
+ q = q.filter(Lock.address==address)
+ else:
+ q = q.order_by(Lock.date_created.asc())
+
+ locks = []
+ for lock in q.all():
+ o = {
+ 'date': lock[0],
+ 'address': lock[1],
+ 'tx_hash': lock[3],
+ 'flags': lock[2],
+ }
+ locks.append(o)
+ session.close()
+
+ return locks
+
+
+@celery_app.task()
+def get_tx(tx_hash):
+ """Retrieve a transaction queue record by transaction hash
+
+ :param tx_hash: Transaction hash of record to modify
+ :type tx_hash: str, 0x-hex
+ :raises NotLocalTxError: If transaction not found in queue.
+ :returns: nonce, address and signed_tx (raw signed transaction)
+ :rtype: dict
+ """
+ session = SessionBase.create_session()
+ tx = session.query(Otx).filter(Otx.tx_hash==tx_hash).first()
+ if tx == None:
+ raise NotLocalTxError('queue does not contain tx hash {}'.format(tx_hash))
+
+ o = {
+ 'otx_id': tx.id,
+ 'nonce': tx.nonce,
+ 'signed_tx': tx.signed_tx,
+ 'status': tx.status,
+ }
+ logg.debug('get tx {}'.format(o))
+ session.close()
+ return o
+
+
+@celery_app.task()
+def get_nonce_tx(nonce, sender, chain_id):
+ """Retrieve all transactions for address with specified nonce
+
+ :param nonce: Nonce
+ :type nonce: number
+ :param address: Ethereum address
+ :type address: str, 0x-hex
+ :returns: Transactions
+ :rtype: dict, with transaction hash as key, signed raw transaction as value
+ """
+ session = SessionBase.create_session()
+ q = session.query(Otx)
+ q = q.join(TxCache)
+ q = q.filter(TxCache.sender==sender)
+ q = q.filter(Otx.nonce==nonce)
+
+ txs = {}
+ for r in q.all():
+ tx_signed_bytes = bytes.fromhex(r.signed_tx[2:])
+ tx = unpack_signed_raw_tx(tx_signed_bytes, chain_id)
+ if sender == None or tx['from'] == sender:
+ txs[r.tx_hash] = r.signed_tx
+
+ session.close()
+
+ return txs
+
+
+
+# TODO: pass chain spec instead of chain id
+def get_paused_txs(status=None, sender=None, chain_id=0):
+ """Returns not finalized transactions that have been attempted sent without success.
+
+ :param status: If set, will return transactions with this local queue status only
+ :type status: cic_eth.db.enum.StatusEnum
+ :param recipient: Recipient address to return transactions for
+ :type recipient: str, 0x-hex
+ :param chain_id: Numeric chain id to use to parse signed transaction data
+ :type chain_id: number
+ :raises ValueError: Status is finalized, sent or never attempted sent
+ :returns: Transactions
+ :rtype: dict, with transaction hash as key, signed raw transaction as value
+ """
+ session = SessionBase.create_session()
+ q = session.query(Otx)
+
+ if status != None:
+ if status == StatusEnum.PENDING or status >= StatusEnum.SENT:
+ raise ValueError('not a valid paused tx value: {}'.format(status))
+ q = q.filter(Otx.status==status)
+ q = q.join(TxCache)
+ else:
+ q = q.filter(Otx.status>StatusEnum.PENDING)
+ q = q.filter(Otx.status 0 and i == limit:
+ break
+ txs[o.tx_hash] = o.signed_tx
+ i += 1
+ session.close()
+ return txs
+
+
+# TODO: move query to model
+def get_upcoming_tx(status=StatusEnum.READYSEND, recipient=None, before=None, chain_id=0):
+ """Returns the next pending transaction, specifically the transaction with the lowest nonce, for every recipient that has pending transactions.
+
+ Will omit addresses that have the LockEnum.SEND bit in Lock set.
+
+ (TODO) Will not return any rows if LockEnum.SEND bit in Lock is set for zero address.
+
+ :param status: Defines the status used to filter as upcoming.
+ :type status: cic_eth.db.enum.StatusEnum
+ :param recipient: Ethereum address of recipient to return transaction for
+ :type recipient: str, 0x-hex
+ :param before: Only return transactions if their modification date is older than the given timestamp
+ :type before: datetime.datetime
+ :param chain_id: Chain id to use to parse signed transaction data
+ :type chain_id: number
+ :raises ValueError: Status is finalized, sent or never attempted sent
+ :returns: Transactions
+ :rtype: dict, with transaction hash as key, signed raw transaction as value
+ """
+ session = SessionBase.create_session()
+ q = session.query(
+ TxCache.sender,
+ func.min(Otx.nonce).label('nonce'),
+ )
+ q = q.join(TxCache)
+ q = q.join(Lock, isouter=True)
+ q = q.filter(or_(Lock.flags==None, Lock.flags.op('&')(LockEnum.SEND.value)==0))
+
+ if status >= StatusEnum.SENT:
+ raise ValueError('not a valid non-final tx value: {}'.format(s))
+ q = q.filter(Otx.status==status)
+
+ if recipient != None:
+ q = q.filter(TxCache.recipient==recipient)
+
+ q = q.group_by(TxCache.sender)
+
+ txs = {}
+
+ results = q.all()
+ for r in results:
+ q = session.query(Otx)
+ q = q.join(TxCache)
+ q = q.filter(TxCache.sender==r.sender)
+ q = q.filter(Otx.nonce==r.nonce)
+
+ if before != None:
+ q = q.filter(TxCache.date_checked 1:
+ task_queue = task_split[0]
+ task_pair = (task_split[1], task_queue)
+ transfer_callbacks.append(task_pair)
+
+
+# TODO: move to contract registry
+__convert_log_hash = '0x7154b38b5dd31bb3122436a96d4e09aba5b323ae1fd580025fab55074334c095' # keccak256(Conversion(address,address,address,uint256,uint256,address)
+__account_registry_add_log_hash = '0x5ed3bdd47b9af629827a8d129aa39c870b10c03f0153fe9ddb8e84b665061acd' # keccak256(AccountAdded(address,uint256))
+
+__transfer_method_signature = '0xa9059cbb' # keccak256(transfer(address,uint256))
+__transferfrom_method_signature = '0x23b872dd' # keccak256(transferFrom(address,address,uint256))
+__giveto_method_signature = '0x63e4bff4' # keccak256(giveTo(address))
+
+# TODO: move to bancor package
+def parse_convert_log(w3, entry):
+ data = entry.data[2:]
+ from_amount = int(data[:64], 16)
+ to_amount = int(data[64:128], 16)
+ holder_address_hex_raw = '0x' + data[-40:]
+ holder_address_hex = w3.toChecksumAddress(holder_address_hex_raw)
+ o = {
+ 'from_amount': from_amount,
+ 'to_amount': to_amount,
+ 'holder_address': holder_address_hex
+ }
+ logg.debug('parsed convert log {}'.format(o))
+ return o
+
+
+def registration_filter(w3, tx, rcpt, chain_spec):
+ registered_address = None
+ for l in rcpt['logs']:
+ event_topic_hex = l['topics'][0].hex()
+ if event_topic_hex == __account_registry_add_log_hash:
+ address_bytes = l.topics[1][32-20:]
+ address = web3.Web3.toChecksumAddress(address_bytes.hex())
+ logg.debug('request token gift to {}'.format(address))
+ s = celery.signature(
+ 'cic_eth.eth.account.gift',
+ [
+ address,
+ str(chain_spec),
+ ],
+ queue=queue,
+ )
+ s.apply_async()
+
+
+def convert_filter(w3, tx, rcpt, chain_spec):
+ destination_token_address = None
+ recipient_address = None
+ amount = 0
+ for l in rcpt['logs']:
+ event_topic_hex = l['topics'][0].hex()
+ if event_topic_hex == __convert_log_hash:
+ tx_hash_hex = tx['hash'].hex()
+ try:
+ convert_transfer = TxConvertTransfer.get(tx_hash_hex)
+ except UnknownConvertError:
+ logg.warning('skipping unknown convert tx {}'.format(tx_hash_hex))
+ continue
+ if convert_transfer.transfer_tx_hash != None:
+ logg.warning('convert tx {} cache record already has transfer hash {}, skipping'.format(tx_hash_hex, convert_transfer.transfer_hash))
+ continue
+ recipient_address = convert_transfer.recipient_address
+ logg.debug('found convert event {} recipient'.format(tx_hash_hex, recipient_address))
+ r = parse_convert_log(l)
+ destination_token_address = l['topics'][3][-20:]
+
+ if destination_token_address == zero_address or destination_token_address == None:
+ return None
+
+ destination_token_address_hex = destination_token_address.hex()
+ s = celery.signature(
+ 'cic_eth.eth.bancor.transfer_converted',
+ [
+ [{
+ 'address': w3.toChecksumAddress(destination_token_address_hex),
+ }],
+ r['holder_address'],
+ recipient_address,
+ r['to_amount'],
+ tx_hash_hex,
+ str(chain_spec),
+ ],
+ queue=queue,
+ )
+ logg.info('sending tx signature {}'.format(s))
+ t = s.apply_async()
+ logg.debug('submitted transfer after convert task uuid {} {}'.format(t, t.successful()))
+ return t
+
+
+def tx_filter(w3, tx, rcpt, chain_spec):
+ tx_hash_hex = tx.hash.hex()
+ otx = Otx.load(tx_hash_hex)
+ if otx == None:
+ logg.debug('tx {} not found locally, skipping'.format(tx_hash_hex))
+ return None
+ logg.info('otx found {}'.format(otx.tx_hash))
+ s = celery.signature(
+ 'cic_eth.queue.tx.set_final_status',
+ [
+ tx_hash_hex,
+ rcpt.blockNumber,
+ rcpt.status == 0,
+ ],
+ queue=queue,
+ )
+ t = s.apply_async()
+ return t
+
+
+# TODO: replace with registry call instead
+def get_token_symbol(w3, address):
+ #token = CICRegistry.get_address(CICRegistry.chain_spec, tx['to'])
+ logg.warning('token verification missing')
+ c = w3.eth.contract(abi=CICRegistry.abi('ERC20'), address=address)
+ return c.functions.symbol().call()
+
+
+# TODO: replace with registry call instead
+def get_token_decimals(w3, address):
+ #token = CICRegistry.get_address(CICRegistry.chain_spec, tx['to'])
+ logg.warning('token verification missing')
+ c = w3.eth.contract(abi=CICRegistry.abi('ERC20'), address=address)
+ return c.functions.decimals().call()
+
+
+def callbacks_filter(w3, tx, rcpt, chain_spec):
+ transfer_data = None
+ if len(tx.input) < 10:
+ logg.debug('callbacks filter data length not sufficient for method signature in tx {}, skipping'.format(tx['hash']))
+ return
+
+ logg.debug('checking callbacks filter input {}'.format(tx.input[:10]))
+
+ transfer_type = 'transfer'
+ method_signature = tx.input[:10]
+ if method_signature == __transfer_method_signature:
+ transfer_data = unpack_transfer(tx.input)
+ transfer_data['from'] = tx['from']
+ transfer_data['token_address'] = tx['to']
+ elif method_signature == __transferfrom_method_signature:
+ transfer_type = 'transferfrom'
+ transfer_data = unpack_transferfrom(tx.input)
+ transfer_data['token_address'] = tx['to']
+ elif method_signature == __giveto_method_signature:
+ transfer_type = 'tokengift'
+ transfer_data = unpack_gift(tx.input)
+ for l in rcpt.logs:
+ if l.topics[0].hex() == '0x45c201a59ac545000ead84f30b2db67da23353aa1d58ac522c48505412143ffa':
+ transfer_data['amount'] = web3.Web3.toInt(hexstr=l.data)
+ token_address_bytes = l.topics[2][32-20:]
+ transfer_data['token_address'] = web3.Web3.toChecksumAddress(token_address_bytes.hex())
+ transfer_data['from'] = rcpt.to
+
+ if transfer_data != None:
+ for tc in transfer_callbacks:
+ token_symbol = None
+ try:
+ logg.debug('checking token {}'.format(transfer_data['token_address']))
+ token_symbol = get_token_symbol(w3, transfer_data['token_address'])
+ token_decimals = get_token_decimals(w3, transfer_data['token_address'])
+ logg.debug('calling transfer callback {}:{} for tx {}'.format(tc[1], tc[0], tx['hash']))
+ except UnknownContractError:
+ logg.debug('callback filter {}:{} skipping "transfer" method on unknown contract {} tx {}'.format(tc[1], tc[0], transfer_data['to'], tx.hash.hex()))
+ continue
+ result = {
+ 'hash': tx.hash.hex(),
+ 'sender': transfer_data['from'],
+ 'recipient': transfer_data['to'],
+ 'source_value': transfer_data['amount'],
+ 'destination_value': transfer_data['amount'],
+ 'source_token': transfer_data['token_address'],
+ 'destination_token': transfer_data['token_address'],
+ 'source_token_symbol': token_symbol,
+ 'destination_token_symbol': token_symbol,
+ 'source_token_decimals': token_decimals,
+ 'destination_token_decimals': token_decimals,
+ 'chain': str(chain_spec),
+ }
+ s = celery.signature(
+ tc[0],
+ [
+ result,
+ transfer_type,
+ int(rcpt.status == 0),
+ ],
+ queue=tc[1],
+ )
+ s.apply_async()
+
+
+class GasFilter:
+
+ def __init__(self, gas_provider):
+ self.gas_provider = gas_provider
+
+ def filter(self, w3, tx, rcpt, chain_str):
+ tx_hash_hex = tx.hash.hex()
+ if tx['value'] > 0:
+ logg.debug('gas refill tx {}'.format(tx_hash_hex))
+ session = SessionBase.create_session()
+ q = session.query(TxCache.recipient)
+ q = q.join(Otx)
+ q = q.filter(Otx.tx_hash==tx_hash_hex)
+ r = q.first()
+
+ session.close()
+
+ if r == None:
+ logg.warning('unsolicited gas refill tx {}'.format(tx_hash_hex))
+ return
+
+ chain_spec = ChainSpec.from_chain_str(chain_str)
+ txs = get_paused_txs(StatusEnum.WAITFORGAS, r[0], chain_spec.chain_id())
+
+ if len(txs) > 0:
+ logg.info('resuming gas-in-waiting txs for {}: {}'.format(r[0], txs.keys()))
+ s = create_check_gas_and_send_task(
+ list(txs.values()),
+ str(chain_str),
+ r[0],
+ 0,
+ tx_hashes_hex=list(txs.keys()),
+ queue=queue,
+ )
+ s.apply_async()
+
+
+re_websocket = re.compile('^wss?://')
+re_http = re.compile('^https?://')
+blockchain_provider = config.get('ETH_PROVIDER')
+if re.match(re_websocket, blockchain_provider) != None:
+ blockchain_provider = WebsocketProvider(blockchain_provider)
+elif re.match(re_http, blockchain_provider) != None:
+ blockchain_provider = HTTPProvider(blockchain_provider)
+else:
+ raise ValueError('unknown provider url {}'.format(blockchain_provider))
+
+def web3_constructor():
+ w3 = web3.Web3(blockchain_provider)
+ return (blockchain_provider, w3)
+RpcClient.set_constructor(web3_constructor)
+
+
+def main():
+
+ chain_spec = ChainSpec.from_chain_str(config.get('CIC_CHAIN_SPEC'))
+ c = RpcClient(chain_spec)
+
+ CICRegistry.init(c.w3, config.get('CIC_REGISTRY_ADDRESS'), chain_spec)
+ CICRegistry.add_path(config.get('ETH_ABI_DIR'))
+ chain_registry = ChainRegistry(chain_spec)
+ CICRegistry.add_chain_registry(chain_registry)
+
+ if config.get('ETH_ACCOUNT_ACCOUNTS_INDEX_WRITER') != None:
+ CICRegistry.add_role(chain_spec, config.get('ETH_ACCOUNT_ACCOUNTS_INDEX_WRITER'), 'AccountRegistry', True)
+
+ syncers = []
+ block_offset = c.w3.eth.blockNumber
+ chain = str(chain_spec)
+
+ if SyncerBackend.first(chain):
+ from cic_eth.sync.history import HistorySyncer
+ backend = SyncerBackend.initial(chain, block_offset)
+ syncer = HistorySyncer(backend)
+ syncers.append(syncer)
+
+ if args.mode == 'head':
+ from cic_eth.sync.head import HeadSyncer
+ block_sync = SyncerBackend.live(chain, block_offset+1)
+ syncers.append(HeadSyncer(block_sync))
+ elif args.mode == 'history':
+ from cic_eth.sync.history import HistorySyncer
+ backends = SyncerBackend.resume(chain, block_offset+1)
+ for backend in backends:
+ syncers.append(HistorySyncer(backend))
+ if len(syncers) == 0:
+ logg.info('found no unsynced history. terminating')
+ sys.exit(0)
+ else:
+ sys.stderr.write("unknown mode '{}'\n".format(args.mode))
+ sys.exit(1)
+
+# bancor_registry_contract = CICRegistry.get_contract(chain_spec, 'BancorRegistry', interface='Registry')
+# bancor_chain_registry = CICRegistry.get_chain_registry(chain_spec)
+# bancor_registry = BancorRegistryClient(c.w3, bancor_chain_registry, config.get('ETH_ABI_DIR'))
+# bancor_registry.load()
+
+ i = 0
+ for syncer in syncers:
+ logg.debug('running syncer index {}'.format(i))
+ gas_filter = GasFilter(c.gas_provider()).filter
+ syncer.filter.append(gas_filter)
+ syncer.filter.append(registration_filter)
+ syncer.filter.append(callbacks_filter)
+ # TODO: the two following filter functions break the filter loop if return uuid. Pro: less code executed. Con: Possibly unintuitive flow break
+ syncer.filter.append(tx_filter)
+ syncer.filter.append(convert_filter)
+
+ try:
+ syncer.loop(int(config.get('SYNCER_LOOP_INTERVAL')))
+ except LoopDone as e:
+ sys.stderr.write("sync '{}' done at block {}\n".format(args.mode, e))
+
+ i += 1
+
+ sys.exit(0)
+
+
+if __name__ == '__main__':
+ main()
diff --git a/apps/cic-eth/cic_eth/runnable/retry.py b/apps/cic-eth/cic_eth/runnable/retry.py
new file mode 100644
index 00000000..b59f6d05
--- /dev/null
+++ b/apps/cic-eth/cic_eth/runnable/retry.py
@@ -0,0 +1,214 @@
+import os
+import sys
+import logging
+import argparse
+import re
+import datetime
+
+import web3
+import confini
+import celery
+from web3 import HTTPProvider, WebsocketProvider
+from cic_registry import CICRegistry
+from cic_registry.chain import ChainSpec
+
+from cic_eth.db import dsn_from_config
+from cic_eth.db import SessionBase
+from cic_eth.eth import RpcClient
+from cic_eth.sync.retry import RetrySyncer
+from cic_eth.queue.tx import get_status_tx
+from cic_eth.queue.tx import get_tx
+from cic_eth.admin.ctrl import lock_send
+from cic_eth.db.enum import StatusEnum
+from cic_eth.db.enum import LockEnum
+from cic_eth.eth.util import unpack_signed_raw_tx_hex
+
+logging.basicConfig(level=logging.WARNING)
+logg = logging.getLogger()
+logging.getLogger('websockets.protocol').setLevel(logging.CRITICAL)
+logging.getLogger('web3.RequestManager').setLevel(logging.CRITICAL)
+logging.getLogger('web3.providers.WebsocketProvider').setLevel(logging.CRITICAL)
+logging.getLogger('web3.providers.HTTPProvider').setLevel(logging.CRITICAL)
+
+
+config_dir = os.path.join('/usr/local/etc/cic-eth')
+
+argparser = argparse.ArgumentParser(description='daemon that monitors transactions in new blocks')
+argparser.add_argument('-c', type=str, default=config_dir, help='config root to use')
+argparser.add_argument('-i', '--chain-spec', dest='i', type=str, help='chain spec')
+argparser.add_argument('--retry-delay', dest='retry_delay', type=str, help='seconds to wait for retrying a transaction that is marked as sent')
+argparser.add_argument('--abi-dir', dest='abi_dir', type=str, help='Directory containing bytecode and abi')
+argparser.add_argument('--env-prefix', default=os.environ.get('CONFINI_ENV_PREFIX'), dest='env_prefix', type=str, help='environment prefix for variables to overwrite configuration')
+argparser.add_argument('-q', type=str, default='cic-eth', help='celery queue to submit transaction tasks to')
+argparser.add_argument('-v', help='be verbose', action='store_true')
+argparser.add_argument('-vv', help='be more verbose', action='store_true')
+args = argparser.parse_args(sys.argv[1:])
+
+
+if args.v == True:
+ logging.getLogger().setLevel(logging.INFO)
+elif args.vv == True:
+ logging.getLogger().setLevel(logging.DEBUG)
+
+config_dir = os.path.join(args.c)
+os.makedirs(config_dir, 0o777, True)
+config = confini.Config(config_dir, args.env_prefix)
+config.process()
+# override args
+args_override = {
+ 'ETH_ABI_DIR': getattr(args, 'abi_dir'),
+ 'CIC_CHAIN_SPEC': getattr(args, 'i'),
+ 'CIC_TX_RETRY_DELAY': getattr(args, 'retry_delay'),
+ }
+config.dict_override(args_override, 'cli flag')
+config.censor('PASSWORD', 'DATABASE')
+config.censor('PASSWORD', 'SSL')
+logg.debug('config loaded from {}:\n{}'.format(config_dir, config))
+
+app = celery.Celery(backend=config.get('CELERY_RESULT_URL'), broker=config.get('CELERY_BROKER_URL'))
+
+queue = args.q
+
+chain_spec = ChainSpec.from_chain_str(config.get('CIC_CHAIN_SPEC'))
+
+dsn = dsn_from_config(config)
+SessionBase.connect(dsn)
+
+
+re_websocket = re.compile('^wss?://')
+re_http = re.compile('^https?://')
+blockchain_provider = config.get('ETH_PROVIDER')
+if re.match(re_websocket, blockchain_provider) != None:
+ blockchain_provider = WebsocketProvider(blockchain_provider)
+elif re.match(re_http, blockchain_provider) != None:
+ blockchain_provider = HTTPProvider(blockchain_provider)
+else:
+ raise ValueError('unknown provider url {}'.format(blockchain_provider))
+
+def web3_constructor():
+ w3 = web3.Web3(blockchain_provider)
+ return (blockchain_provider, w3)
+RpcClient.set_constructor(web3_constructor)
+
+
+straggler_delay = int(config.get('CIC_TX_RETRY_DELAY'))
+
+# TODO: we already have the signed raw tx in get, so its a waste of cycles to get_tx here
+def sendfail_filter(w3, tx_hash, rcpt, chain_str):
+ chain_spec = ChainSpec.from_chain_str(chain_str)
+ tx_dict = get_tx(tx_hash)
+ tx = unpack_signed_raw_tx_hex(tx_dict['signed_tx'], chain_spec.chain_id())
+ logg.debug('submitting tx {} for retry'.format(tx_hash))
+ s_check = celery.signature(
+ 'cic_eth.admin.ctrl.check_lock',
+ [
+ tx_hash,
+ chain_str,
+ LockEnum.QUEUE,
+ tx['from'],
+ ],
+ queue=queue,
+ )
+# s_resume = celery.signature(
+# 'cic_eth.eth.tx.resume_tx',
+# [
+# chain_str,
+# ],
+# queue=queue,
+# )
+
+# s_retry_status = celery.signature(
+# 'cic_eth.queue.tx.set_ready',
+# [],
+# queue=queue,
+# )
+ s_resend = celery.signature(
+ 'cic_eth.eth.tx.resend_with_higher_gas',
+ [
+ chain_str,
+ ],
+ queue=queue,
+ )
+
+ #s_resume.link(s_retry_status)
+ #s_check.link(s_resume)
+ s_check.link(s_resend)
+ s_check.apply_async()
+
+
+# TODO: can we merely use the dispatcher instead?
+def dispatch(chain_str):
+ txs = get_status_tx(StatusEnum.RETRY, datetime.datetime.utcnow())
+ if len(txs) == 0:
+ logg.debug('no retry state txs found')
+ return
+ #signed_txs = list(txs.values())
+ #logg.debug('signed txs {} chain {}'.format(signed_txs, chain_str))
+ #for tx in signed_txs:
+ for k in txs.keys():
+ #tx_cache = get_tx_cache(k)
+ tx_raw = txs[k]
+ tx = unpack_signed_raw_tx_hex(tx_raw, chain_spec.chain_id())
+
+ s_check = celery.signature(
+ 'cic_eth.admin.ctrl.check_lock',
+ [
+ [tx_raw],
+ chain_str,
+ LockEnum.QUEUE,
+ tx['from'],
+ ],
+ queue=queue,
+ )
+ s_send = celery.signature(
+ 'cic_eth.eth.tx.send',
+ [
+ chain_str,
+ ],
+ queue=queue,
+ )
+ s_check.link(s_send)
+ t = s_check.apply_async()
+
+# try:
+# r = t.get()
+# logg.debug('submitted as {} result {} with queue task {}'.format(t, r, t.children[0].get()))
+# except PermanentTxError as e:
+# logg.error('tx {} permanently failed: {}'.format(tx, e))
+# except TemporaryTxError as e:
+# logg.error('tx {} temporarily failed: {}'.format(tx, e))
+
+#
+#
+#def straggler_filter(w3, tx, rcpt, chain_str):
+# before = datetime.datetime.utcnow() - datetime.timedelta(seconds=straggler_delay)
+# txs = get_status_tx(StatusEnum.SENT, before)
+# if len(txs) == 0:
+# logg.debug('no straggler txs found')
+# return
+# txs = list(txs.keys())
+# logg.debug('straggler txs {} chain {}'.format(signed_txs, chain_str))
+# s_send = celery.signature(
+# 'cic_eth.eth.resend_with_higher_gas',
+# [
+# txs,
+# chain_str,
+# ],
+# queue=queue,
+# )
+# s_send.apply_async()
+
+
+def main():
+
+ c = RpcClient(chain_spec)
+ CICRegistry.init(c.w3, config.get('CIC_REGISTRY_ADDRESS'), chain_spec)
+ CICRegistry.add_path(config.get('ETH_ABI_DIR'))
+
+ syncer = RetrySyncer(chain_spec, straggler_delay, final_func=dispatch)
+ syncer.filter.append(sendfail_filter)
+ syncer.loop(float(straggler_delay))
+
+
+if __name__ == '__main__':
+ main()
diff --git a/apps/cic-eth/cic_eth/runnable/server_agent.py b/apps/cic-eth/cic_eth/runnable/server_agent.py
new file mode 100644
index 00000000..5f89f12d
--- /dev/null
+++ b/apps/cic-eth/cic_eth/runnable/server_agent.py
@@ -0,0 +1,173 @@
+# standard imports
+import os
+import re
+import logging
+import argparse
+import json
+
+# third-party imports
+import web3
+import confini
+import celery
+from json.decoder import JSONDecodeError
+from cic_registry.chain import ChainSpec
+
+# local imports
+from cic_eth.db import dsn_from_config
+from cic_eth.db.models.base import SessionBase
+from cic_eth.eth.util import unpack_signed_raw_tx
+
+logging.basicConfig(level=logging.WARNING)
+logg = logging.getLogger()
+
+rootdir = os.path.dirname(os.path.dirname(os.path.realpath(__file__)))
+dbdir = os.path.join(rootdir, 'cic_eth', 'db')
+migrationsdir = os.path.join(dbdir, 'migrations')
+
+config_dir = os.path.join('/usr/local/etc/cic-eth')
+
+argparser = argparse.ArgumentParser()
+argparser.add_argument('-c', type=str, default=config_dir, help='config file')
+argparser.add_argument('-i', '--chain-spec', dest='i', type=str, help='chain spec')
+argparser.add_argument('--env-prefix', default=os.environ.get('CONFINI_ENV_PREFIX'), dest='env_prefix', type=str, help='environment prefix for variables to overwrite configuration')
+argparser.add_argument('-q', type=str, default='cic-eth', help='queue name for worker tasks')
+argparser.add_argument('-v', action='store_true', help='be verbose')
+argparser.add_argument('-vv', action='store_true', help='be more verbose')
+args = argparser.parse_args()
+
+if args.vv:
+ logging.getLogger().setLevel(logging.DEBUG)
+elif args.v:
+ logging.getLogger().setLevel(logging.INFO)
+
+config = confini.Config(args.c, args.env_prefix)
+config.process()
+args_override = {
+ 'CIC_CHAIN_SPEC': getattr(args, 'i'),
+ }
+config.censor('PASSWORD', 'DATABASE')
+config.censor('PASSWORD', 'SSL')
+logg.debug('config:\n{}'.format(config))
+
+dsn = dsn_from_config(config)
+SessionBase.connect(dsn)
+
+celery_app = celery.Celery(backend=config.get('CELERY_RESULT_URL'), broker=config.get('CELERY_BROKER_URL'))
+queue = args.q
+
+re_transfer_approval_request = r'^/transferrequest/?'
+
+chain_spec = ChainSpec.from_chain_str(config.get('CIC_CHAIN_SPEC'))
+
+
+def process_transfer_approval_request(session, env):
+ r = re.match(re_transfer_approval_request, env.get('PATH_INFO'))
+ if not r:
+ return None
+
+ if env.get('CONTENT_TYPE') != 'application/json':
+ raise AttributeError('content type')
+
+ if env.get('REQUEST_METHOD') != 'POST':
+ raise AttributeError('method')
+
+ post_data = json.load(env.get('wsgi.input'))
+ token_address = web3.Web3.toChecksumAddress(post_data['token_address'])
+ holder_address = web3.Web3.toChecksumAddress(post_data['holder_address'])
+ beneficiary_address = web3.Web3.toChecksumAddress(post_data['beneficiary_address'])
+ value = int(post_data['value'])
+
+ logg.debug('transfer approval request token {} to {} from {} value {}'.format(
+ token_address,
+ beneficiary_address,
+ holder_address,
+ value,
+ )
+ )
+
+ s = celery.signature(
+ 'cic_eth.eth.request.transfer_approval_request',
+ [
+ [
+ {
+ 'address': token_address,
+ },
+ ],
+ holder_address,
+ beneficiary_address,
+ value,
+ config.get('CIC_CHAIN_SPEC'),
+ ],
+ queue=queue,
+ )
+ t = s.apply_async()
+ r = t.get()
+ tx_raw_bytes = bytes.fromhex(r[0][2:])
+ tx = unpack_signed_raw_tx(tx_raw_bytes, chain_spec.chain_id())
+ for r in t.collect():
+ logg.debug('result {}'.format(r))
+
+ if not t.successful():
+ raise RuntimeError(tx['hash'])
+
+ return ('text/plain', tx['hash'].encode('utf-8'),)
+
+
+# uwsgi application
+def application(env, start_response):
+
+ for k in env.keys():
+ logg.debug('env {} {}'.format(k, env[k]))
+
+ headers = []
+ content = b''
+ err = None
+
+ session = SessionBase.create_session()
+ for handler in [
+ process_transfer_approval_request,
+ ]:
+ try:
+ r = handler(session, env)
+ except AttributeError as e:
+ logg.error('handler fail attribute {}'.format(e))
+ err = '400 Impertinent request'
+ break
+ except JSONDecodeError as e:
+ logg.error('handler fail json {}'.format(e))
+ err = '400 Invalid data format'
+ break
+ except KeyError as e:
+ logg.error('handler fail key {}'.format(e))
+ err = '400 Invalid JSON'
+ break
+ except ValueError as e:
+ logg.error('handler fail value {}'.format(e))
+ err = '400 Invalid data'
+ break
+ except RuntimeError as e:
+ logg.error('task fail value {}'.format(e))
+ err = '500 Task failed, sorry I cannot tell you more'
+ break
+ if r != None:
+ (mime_type, content) = r
+ break
+ session.close()
+
+ if err != None:
+ headers.append(('Content-Type', 'text/plain, charset=UTF-8',))
+ start_response(err, headers)
+ session.close()
+ return [content]
+
+ headers.append(('Content-Length', str(len(content))),)
+ headers.append(('Access-Control-Allow-Origin', '*',));
+
+ if len(content) == 0:
+ headers.append(('Content-Type', 'text/plain, charset=UTF-8',))
+ start_response('404 Looked everywhere, sorry', headers)
+ else:
+ headers.append(('Content-Type', mime_type,))
+ start_response('200 OK', headers)
+
+ return [content]
diff --git a/apps/cic-eth/cic_eth/runnable/tag.py b/apps/cic-eth/cic_eth/runnable/tag.py
new file mode 100644
index 00000000..c1df1e30
--- /dev/null
+++ b/apps/cic-eth/cic_eth/runnable/tag.py
@@ -0,0 +1,77 @@
+# standard imports
+import os
+import sys
+import logging
+import argparse
+import re
+
+# third-party imports
+import web3
+from web3 import HTTPProvider, WebsocketProvider
+import confini
+
+# local imports
+from cic_eth.api import AdminApi
+from cic_eth.eth import RpcClient
+from cic_eth.db import dsn_from_config
+from cic_eth.db.models.base import SessionBase
+
+logging.basicConfig(level=logging.WARNING)
+logg = logging.getLogger()
+
+default_config_dir = os.environ.get('CONFINI_DIR', '/usr/local/etc/cic')
+
+
+argparser = argparse.ArgumentParser(description='daemon that monitors transactions in new blocks')
+argparser.add_argument('-p', '--provider', dest='p', type=str, help='Web3 provider url (http only)')
+argparser.add_argument('-c', type=str, default=default_config_dir, help='config root to use')
+argparser.add_argument('-v', help='be verbose', action='store_true')
+argparser.add_argument('-i', '--chain-spec', dest='i', type=str, help='chain spec')
+argparser.add_argument('-vv', help='be more verbose', action='store_true')
+argparser.add_argument('tag', type=str, help='address tag')
+argparser.add_argument('address', type=str, help='address')
+args = argparser.parse_args(sys.argv[1:])
+
+if args.v == True:
+ logging.getLogger().setLevel(logging.INFO)
+elif args.vv == True:
+ logging.getLogger().setLevel(logging.DEBUG)
+
+config = confini.Config(args.c)
+config.process()
+args_override = {
+ 'ETH_PROVIDER': getattr(args, 'p'),
+ 'CIC_CHAIN_SPEC': getattr(args, 'i'),
+ }
+config.dict_override(args_override, 'cli flag')
+config.censor('PASSWORD', 'DATABASE')
+config.censor('PASSWORD', 'SSL')
+logg.debug('config loaded from {}\n{}'.format(args.c, config))
+
+
+dsn = dsn_from_config(config)
+SessionBase.connect(dsn)
+
+re_websocket = re.compile('^wss?://')
+re_http = re.compile('^https?://')
+blockchain_provider = config.get('ETH_PROVIDER')
+if re.match(re_websocket, blockchain_provider) != None:
+ blockchain_provider = WebsocketProvider(blockchain_provider)
+elif re.match(re_http, blockchain_provider) != None:
+ blockchain_provider = HTTPProvider(blockchain_provider)
+else:
+ raise ValueError('unknown provider url {}'.format(blockchain_provider))
+
+def web3_constructor():
+ w3 = web3.Web3(blockchain_provider)
+ return (blockchain_provider, w3)
+RpcClient.set_constructor(web3_constructor)
+c = RpcClient(config.get('CIC_CHAIN_SPEC'))
+
+def main():
+ api = AdminApi(c)
+ api.tag_account(args.tag, args.address)
+
+
+if __name__ == '__main__':
+ main()
diff --git a/apps/cic-eth/cic_eth/runnable/tasker.py b/apps/cic-eth/cic_eth/runnable/tasker.py
new file mode 100644
index 00000000..efbb6e75
--- /dev/null
+++ b/apps/cic-eth/cic_eth/runnable/tasker.py
@@ -0,0 +1,238 @@
+# standard imports
+import sys
+import os
+import logging
+import argparse
+import tempfile
+import re
+import urllib
+import websocket
+
+# third-party imports
+import celery
+import confini
+from crypto_dev_signer.eth.web3ext import Web3 as Web3Ext
+from web3 import HTTPProvider, WebsocketProvider
+from gas_proxy.web3 import GasMiddleware
+
+# local imports
+from cic_registry.registry import CICRegistry
+from cic_registry.registry import ChainRegistry
+from cic_registry.registry import ChainSpec
+from cic_registry.helper.declarator import DeclaratorOracleAdapter
+
+from cic_bancor.bancor import BancorRegistryClient
+from cic_eth.eth import bancor
+from cic_eth.eth import token
+from cic_eth.eth import tx
+from cic_eth.eth import account
+from cic_eth.eth import request
+from cic_eth.admin import debug
+from cic_eth.admin import ctrl
+from cic_eth.eth.rpc import RpcClient
+from cic_eth.eth.rpc import GasOracle
+from cic_eth.queue import tx
+from cic_eth.callbacks import Callback
+from cic_eth.callbacks import http
+from cic_eth.callbacks import tcp
+from cic_eth.callbacks import redis
+from cic_eth.db.models.base import SessionBase
+from cic_eth.db.models.otx import Otx
+from cic_eth.db import dsn_from_config
+
+logging.basicConfig(level=logging.WARNING)
+logg = logging.getLogger()
+
+config_dir = os.path.join('/usr/local/etc/cic-eth')
+
+argparser = argparse.ArgumentParser()
+argparser.add_argument('-p', '--provider', dest='p', type=str, help='web3 provider')
+argparser.add_argument('-c', type=str, default=config_dir, help='config file')
+argparser.add_argument('-q', type=str, default='cic-eth', help='queue name for worker tasks')
+argparser.add_argument('--abi-dir', dest='abi_dir', type=str, help='Directory containing bytecode and abi')
+argparser.add_argument('--trace-queue-status', default=None, dest='trace_queue_status', action='store_true', help='set to perist all queue entry status changes to storage')
+argparser.add_argument('-i', '--chain-spec', dest='i', type=str, help='chain spec')
+argparser.add_argument('--env-prefix', default=os.environ.get('CONFINI_ENV_PREFIX'), dest='env_prefix', type=str, help='environment prefix for variables to overwrite configuration')
+argparser.add_argument('-v', action='store_true', help='be verbose')
+argparser.add_argument('-vv', action='store_true', help='be more verbose')
+args = argparser.parse_args()
+
+if args.vv:
+ logging.getLogger().setLevel(logging.DEBUG)
+elif args.v:
+ logging.getLogger().setLevel(logging.INFO)
+
+config = confini.Config(args.c, args.env_prefix)
+config.process()
+# override args
+args_override = {
+ 'ETH_ABI_DIR': getattr(args, 'abi_dir'),
+ 'CIC_CHAIN_SPEC': getattr(args, 'i'),
+ 'ETH_PROVIDER': getattr(args, 'p'),
+ 'TASKS_TRACE_QUEUE_STATUS': getattr(args, 'trace_queue_status'),
+ }
+config.dict_override(args_override, 'cli flag')
+config.censor('PASSWORD', 'DATABASE')
+config.censor('PASSWORD', 'SSL')
+logg.debug('config loaded from {}:\n{}'.format(args.c, config))
+
+# connect to database
+dsn = dsn_from_config(config)
+SessionBase.connect(dsn)
+
+# verify database connection with minimal sanity query
+session = SessionBase.create_session()
+session.execute('select version_num from alembic_version')
+session.close()
+
+# set up celery
+current_app = celery.Celery(__name__)
+
+broker = config.get('CELERY_BROKER_URL')
+if broker[:4] == 'file':
+ bq = tempfile.mkdtemp()
+ bp = tempfile.mkdtemp()
+ current_app.conf.update({
+ 'broker_url': broker,
+ 'broker_transport_options': {
+ 'data_folder_in': bq,
+ 'data_folder_out': bq,
+ 'data_folder_processed': bp,
+ },
+ },
+ )
+ logg.warning('celery broker dirs queue i/o {} processed {}, will NOT be deleted on shutdown'.format(bq, bp))
+else:
+ current_app.conf.update({
+ 'broker_url': broker,
+ })
+
+result = config.get('CELERY_RESULT_URL')
+if result[:4] == 'file':
+ rq = tempfile.mkdtemp()
+ current_app.conf.update({
+ 'result_backend': 'file://{}'.format(rq),
+ })
+ logg.warning('celery backend store dir {} created, will NOT be deleted on shutdown'.format(rq))
+else:
+ current_app.conf.update({
+ 'result_backend': result,
+ })
+
+
+# set up web3
+# TODO: web3 socket wrapping is now a lot of code. factor out
+class JSONRPCHttpSocketAdapter:
+
+ def __init__(self, url):
+ self.response = None
+ self.url = url
+
+ def send(self, data):
+ logg.debug('redirecting socket send to jsonrpc http socket adapter {} {}'.format(self.url, data))
+ req = urllib.request.Request(self.url, method='POST')
+ req.add_header('Content-type', 'application/json')
+ req.add_header('Connection', 'close')
+ res = urllib.request.urlopen(req, data=data.encode('utf-8'))
+ self.response = res.read().decode('utf-8')
+ logg.debug('setting jsonrpc http socket adapter response to {}'.format(self.response))
+
+ def recv(self, n=0):
+ return self.response
+
+
+re_websocket = re.compile('^wss?://')
+re_http = re.compile('^https?://')
+blockchain_provider = config.get('ETH_PROVIDER')
+socket_constructor = None
+if re.match(re_websocket, blockchain_provider) != None:
+ def socket_constructor_ws():
+ return websocket.create_connection(config.get('ETH_PROVIDER'))
+ socket_constructor = socket_constructor_ws
+ blockchain_provider = WebsocketProvider(blockchain_provider)
+elif re.match(re_http, blockchain_provider) != None:
+ def socket_constructor_http():
+ return JSONRPCHttpSocketAdapter(config.get('ETH_PROVIDER'))
+ socket_constructor = socket_constructor_http
+ blockchain_provider = HTTPProvider(blockchain_provider)
+else:
+ raise ValueError('unknown provider url {}'.format(blockchain_provider))
+
+
+def web3ext_constructor():
+ w3 = Web3Ext(blockchain_provider, config.get('SIGNER_SOCKET_PATH'))
+ GasMiddleware.socket_constructor = socket_constructor
+ w3.middleware_onion.add(GasMiddleware)
+
+ def sign_transaction(tx):
+ r = w3.eth.signTransaction(tx)
+ d = r.__dict__
+ for k in d.keys():
+ if k == 'tx':
+ d[k] = d[k].__dict__
+ else:
+ d[k] = d[k].hex()
+ return d
+
+ setattr(w3.eth, 'sign_transaction', sign_transaction)
+ setattr(w3.eth, 'send_raw_transaction', w3.eth.sendRawTransaction)
+ return (blockchain_provider, w3)
+RpcClient.set_constructor(web3ext_constructor)
+
+logg.info('ccc {}'.format(config.store['TASKS_TRACE_QUEUE_STATUS']))
+Otx.tracing = config.true('TASKS_TRACE_QUEUE_STATUS')
+
+
+def main():
+ argv = ['worker']
+ if args.vv:
+ argv.append('--loglevel=DEBUG')
+ elif args.v:
+ argv.append('--loglevel=INFO')
+ argv.append('-Q')
+ argv.append(args.q)
+ argv.append('-n')
+ argv.append(args.q)
+
+ if config.true('SSL_ENABLE_CLIENT'):
+ Callback.ssl = True
+ Callback.ssl_cert_file = config.get('SSL_CERT_FILE')
+ Callback.ssl_key_file = config.get('SSL_KEY_FILE')
+ Callback.ssl_password = config.get('SSL_PASSWORD')
+
+ if config.get('SSL_CA_FILE') != '':
+ Callback.ssl_ca_file = config.get('SSL_CA_FILE')
+
+ chain_spec = ChainSpec.from_chain_str(config.get('CIC_CHAIN_SPEC'))
+
+ c = RpcClient(chain_spec)
+ CICRegistry.init(c.w3, config.get('CIC_REGISTRY_ADDRESS'), chain_spec)
+ CICRegistry.add_path(config.get('ETH_ABI_DIR'))
+
+ chain_registry = ChainRegistry(chain_spec)
+ CICRegistry.add_chain_registry(chain_registry, True)
+
+ if config.get('ETH_ACCOUNT_ACCOUNTS_INDEX_WRITER') != None:
+ CICRegistry.add_role(chain_spec, config.get('ETH_ACCOUNT_ACCOUNTS_INDEX_WRITER'), 'AccountRegistry', True)
+
+ if config.get('CIC_DECLARATOR_ADDRESS') != None:
+ abi_path = os.path.join(config.get('ETH_ABI_DIR'), '{}.json'.format(interface))
+ f = open(abi_path)
+ abi = json.load(abi_path)
+ f.close()
+ c = w3.eth.contract(abi=abi, address=address)
+ trusted_addresses = config.get('CIC_TRUSTED_ADDRESSES', []).split(',')
+ oracle = DeclaratorOracleAdapter(contract, trusted_addresses)
+ chain_registry.add_oracle(oracle)
+
+
+ #chain_spec = CICRegistry.default_chain_spec
+ #bancor_registry_contract = CICRegistry.get_contract(chain_spec, 'BancorRegistry', interface='Registry')
+ #bancor_chain_registry = CICRegistry.get_chain_registry(chain_spec)
+ #bancor_registry = BancorRegistryClient(c.w3, bancor_chain_registry, config.get('ETH_ABI_DIR'))
+ #bancor_registry.load(True)
+ current_app.worker_main(argv)
+
+
+if __name__ == '__main__':
+ main()
diff --git a/apps/cic-eth/cic_eth/runnable/view.py b/apps/cic-eth/cic_eth/runnable/view.py
new file mode 100644
index 00000000..12de34eb
--- /dev/null
+++ b/apps/cic-eth/cic_eth/runnable/view.py
@@ -0,0 +1,177 @@
+#!python3
+
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+# standard imports
+import os
+import json
+import argparse
+import logging
+import sys
+import re
+import datetime
+
+# third-party imports
+import confini
+import celery
+import web3
+from cic_registry import CICRegistry
+from cic_registry.chain import ChainSpec
+from cic_registry.chain import ChainRegistry
+
+# local imports
+from cic_eth.api import AdminApi
+from cic_eth.eth.rpc import RpcClient
+from cic_eth.db.enum import StatusEnum
+from cic_eth.db.enum import LockEnum
+
+logging.basicConfig(level=logging.WARNING)
+logg = logging.getLogger()
+
+logging.getLogger('web3').setLevel(logging.WARNING)
+logging.getLogger('urllib3').setLevel(logging.WARNING)
+
+
+default_abi_dir = '/usr/share/local/cic/solidity/abi'
+default_config_dir = os.path.join('/usr/local/etc/cic-eth')
+
+argparser = argparse.ArgumentParser()
+argparser.add_argument('-p', '--provider', dest='p', default='http://localhost:8545', type=str, help='Web3 provider url (http only)')
+argparser.add_argument('-r', '--registry-address', type=str, help='CIC registry address')
+argparser.add_argument('-f', '--format', dest='f', default='terminal', type=str, help='Output format')
+argparser.add_argument('-c', type=str, default=default_config_dir, help='config root to use')
+argparser.add_argument('-i', '--chain-spec', dest='i', type=str, help='chain spec')
+argparser.add_argument('-q', type=str, default='cic-eth', help='celery queue to submit transaction tasks to')
+argparser.add_argument('--env-prefix', default=os.environ.get('CONFINI_ENV_PREFIX'), dest='env_prefix', type=str, help='environment prefix for variables to overwrite configuration')
+argparser.add_argument('-v', action='store_true', help='Be verbose')
+argparser.add_argument('-vv', help='be more verbose', action='store_true')
+argparser.add_argument('query', type=str, help='Transaction, transaction hash, account or "lock"')
+args = argparser.parse_args()
+
+if args.v == True:
+ logging.getLogger().setLevel(logging.INFO)
+elif args.vv == True:
+ logging.getLogger().setLevel(logging.DEBUG)
+
+
+config_dir = os.path.join(args.c)
+os.makedirs(config_dir, 0o777, True)
+config = confini.Config(config_dir, args.env_prefix)
+config.process()
+args_override = {
+ 'ETH_PROVIDER': getattr(args, 'p'),
+ 'CIC_CHAIN_SPEC': getattr(args, 'i'),
+ }
+# override args
+config.censor('PASSWORD', 'DATABASE')
+config.censor('PASSWORD', 'SSL')
+logg.debug('config loaded from {}:\n{}'.format(config_dir, config))
+
+re_websocket = re.compile('^wss?://')
+re_http = re.compile('^https?://')
+blockchain_provider = config.get('ETH_PROVIDER')
+if re.match(re_websocket, blockchain_provider) != None:
+ blockchain_provider = web3.Web3.WebsocketProvider(blockchain_provider)
+elif re.match(re_http, blockchain_provider) != None:
+ blockchain_provider = web3.Web3.HTTPProvider(blockchain_provider)
+else:
+ raise ValueError('unknown provider url {}'.format(blockchain_provider))
+
+def web3_constructor():
+ w3 = web3.Web3(blockchain_provider)
+ return (blockchain_provider, w3)
+RpcClient.set_constructor(web3_constructor)
+
+
+celery_app = celery.Celery(broker=config.get('CELERY_BROKER_URL'), backend=config.get('CELERY_RESULT_URL'))
+
+queue = args.q
+
+chain_spec = ChainSpec.from_chain_str(config.get('CIC_CHAIN_SPEC'))
+chain_str = str(chain_spec)
+c = RpcClient(chain_spec)
+admin_api = AdminApi(c)
+
+CICRegistry.init(c.w3, config.get('CIC_REGISTRY_ADDRESS'), chain_spec)
+chain_registry = ChainRegistry(chain_spec)
+CICRegistry.add_chain_registry(chain_registry)
+CICRegistry.add_path(config.get('ETH_ABI_DIR'))
+CICRegistry.load_for(chain_spec)
+
+fmt = 'terminal'
+if args.f[:1] == 'j':
+ fmt = 'json'
+elif args.f[:1] != 't':
+ raise ValueError('unknown output format {}'.format(args.f))
+
+
+def render_tx(o, **kwargs):
+ content = ''
+ for k in o.keys():
+ if not k in ['status_log']:
+ content += '{}: {}\n'.format(k, o[k])
+ content += 'status log:\n'
+
+ for v in o.get('status_log', []):
+ d = datetime.datetime.fromisoformat(v[0])
+ e = StatusEnum(v[1]).name
+ content += '{}: {}\n'.format(d, e)
+
+ return content
+
+def render_account(o, **kwargs):
+ return '{} {} {} {}'.format(
+ o['date_updated'],
+ o['nonce'],
+ o['tx_hash'],
+ o['status'],
+ )
+
+
+def render_lock(o, **kwargs):
+ lockstrings = []
+ flags = o['flags']
+ for i in range(31):
+ v = 1 << i
+ if flags & v:
+ lockstrings.append(LockEnum(v).name)
+
+ s = '{} {} {}'.format(
+ o['address'],
+ o['date'],
+ ",".join(lockstrings),
+ )
+ if o['tx_hash'] != None:
+ s += ' ' + o['tx_hash']
+
+ return s
+
+# TODO: move each command to submodule
+def main():
+ logg.debug('len {}'.format(len(args.query)))
+ txs = []
+ renderer = render_tx
+ if len(args.query) > 66:
+ txs = [admin_api.tx(chain_spec, tx_raw=args.query)]
+ elif len(args.query) > 42:
+ txs = [admin_api.tx(chain_spec, tx_hash=args.query)]
+ elif len(args.query) == 42:
+ txs = admin_api.account(chain_spec, args.query, include_recipient=False)
+ renderer = render_account
+ elif len(args.query) >= 4 and args.query[:4] == 'lock':
+ txs = admin_api.get_lock()
+ renderer = render_lock
+ else:
+ raise ValueError('cannot parse argument {}'.format(args.query))
+
+ if len(txs) == 0:
+ logg.info('no matches found')
+ else:
+ if fmt == 'json':
+ sys.stdout.write(json.dumps(txs))
+ else:
+ m = map(renderer, txs)
+ print(*m, sep="\n")
+
+if __name__ == '__main__':
+ main()
diff --git a/apps/cic-eth/cic_eth/sync/__init__.py b/apps/cic-eth/cic_eth/sync/__init__.py
new file mode 100644
index 00000000..325f58dc
--- /dev/null
+++ b/apps/cic-eth/cic_eth/sync/__init__.py
@@ -0,0 +1 @@
+from .base import Syncer
diff --git a/apps/cic-eth/cic_eth/sync/backend.py b/apps/cic-eth/cic_eth/sync/backend.py
new file mode 100644
index 00000000..af58be94
--- /dev/null
+++ b/apps/cic-eth/cic_eth/sync/backend.py
@@ -0,0 +1,196 @@
+# standard imports
+import logging
+
+# local imports
+from cic_eth.db.models.sync import BlockchainSync
+from cic_eth.db.models.base import SessionBase
+
+logg = logging.getLogger()
+
+
+class SyncerBackend:
+ """Interface to block and transaction sync state.
+
+ :param chain_spec: Chain spec for the chain that syncer is running for.
+ :type chain_spec: cic_registry.chain.ChainSpec
+ :param object_id: Unique id for the syncer session.
+ :type object_id: number
+ """
+ def __init__(self, chain_spec, object_id):
+ self.db_session = None
+ self.db_object = None
+ self.chain_spec = chain_spec
+ self.object_id = object_id
+ self.connect()
+ self.disconnect()
+
+
+ def connect(self):
+ """Loads the state of the syncer session with the given id.
+ """
+ self.db_session = SessionBase.create_session()
+ q = self.db_session.query(BlockchainSync)
+ q = q.filter(BlockchainSync.id==self.object_id)
+ self.db_object = q.first()
+ if self.db_object == None:
+ raise ValueError('sync entry with id {} not found'.format(self.object_id))
+
+
+ def disconnect(self):
+ """Commits state of sync to backend.
+ """
+ self.db_session.add(self.db_object)
+ self.db_session.commit()
+ self.db_session.close()
+
+
+ def chain(self):
+ """Returns chain spec for syncer
+
+ :returns: Chain spec
+ :rtype chain_spec: cic_registry.chain.ChainSpec
+ """
+ return self.chain_spec
+
+
+ def get(self):
+ """Get the current state of the syncer cursor.
+
+ :returns: Block and block transaction height, respectively
+ :rtype: tuple
+ """
+ self.connect()
+ pair = self.db_object.cursor()
+ self.disconnect()
+ return pair
+
+
+ def set(self, block_height, tx_height):
+ """Update the state of the syncer cursor
+ :param block_height: Block height of cursor
+ :type block_height: number
+ :param tx_height: Block transaction height of cursor
+ :type tx_height: number
+ :returns: Block and block transaction height, respectively
+ :rtype: tuple
+ """
+ self.connect()
+ pair = self.db_object.set(block_height, tx_height)
+ self.disconnect()
+ return pair
+
+
+ def start(self):
+ """Get the initial state of the syncer cursor.
+
+ :returns: Initial block and block transaction height, respectively
+ :rtype: tuple
+ """
+ self.connect()
+ pair = self.db_object.start()
+ self.disconnect()
+ return pair
+
+
+ def target(self):
+ """Get the target state (upper bound of sync) of the syncer cursor.
+
+ :returns: Target block height
+ :rtype: number
+ """
+ self.connect()
+ target = self.db_object.target()
+ self.disconnect()
+ return target
+
+
+ @staticmethod
+ def first(chain):
+ """Returns the model object of the most recent syncer in backend.
+
+ :param chain: Chain spec of chain that syncer is running for.
+ :type chain: cic_registry.chain.ChainSpec
+ :returns: Last syncer object
+ :rtype: cic_eth.db.models.BlockchainSync
+ """
+ return BlockchainSync.first(chain)
+
+
+ @staticmethod
+ def initial(chain, block_height):
+ """Creates a new syncer session and commit its initial state to backend.
+
+ :param chain: Chain spec of chain that syncer is running for.
+ :type chain: cic_registry.chain.ChainSpec
+ :param block_height: Target block height
+ :type block_height: number
+ :returns: New syncer object
+ :rtype: cic_eth.db.models.BlockchainSync
+ """
+ object_id = None
+ session = SessionBase.create_session()
+ o = BlockchainSync(chain, 0, 0, block_height)
+ session.add(o)
+ session.commit()
+ object_id = o.id
+ session.close()
+
+ return SyncerBackend(chain, object_id)
+
+
+ @staticmethod
+ def resume(chain, block_height):
+ """Retrieves and returns all previously unfinished syncer sessions.
+
+
+ :param chain: Chain spec of chain that syncer is running for.
+ :type chain: cic_registry.chain.ChainSpec
+ :param block_height: Target block height
+ :type block_height: number
+ :returns: Syncer objects of unfinished syncs
+ :rtype: list of cic_eth.db.models.BlockchainSync
+ """
+ syncers = []
+
+ session = SessionBase.create_session()
+
+ object_id = None
+
+ for object_id in BlockchainSync.get_unsynced(session=session):
+ logg.debug('block syncer resume added previously unsynced sync entry id {}'.format(object_id))
+ syncers.append(SyncerBackend(chain, object_id))
+
+ (block_resume, tx_resume) = BlockchainSync.get_last_live_height(block_height, session=session)
+ if block_height != block_resume:
+ o = BlockchainSync(chain, block_resume, tx_resume, block_height)
+ session.add(o)
+ session.commit()
+ object_id = o.id
+ syncers.append(SyncerBackend(chain, object_id))
+ logg.debug('block syncer resume added new sync entry from previous run id {}, start{}:{} target {}'.format(object_id, block_resume, tx_resume, block_height))
+
+ session.close()
+
+ return syncers
+
+
+ @staticmethod
+ def live(chain, block_height):
+ """Creates a new open-ended syncer session starting at the given block height.
+
+ :param chain: Chain spec of chain that syncer is running for.
+ :type chain: cic_registry.chain.ChainSpec
+ :param block_height: Target block height
+ :type block_height: number
+ :returns: "Live" syncer object
+ :rtype: cic_eth.db.models.BlockchainSync
+ """
+ object_id = None
+ session = SessionBase.create_session()
+ o = BlockchainSync(chain, block_height, 0, None)
+ session.add(o)
+ session.commit()
+ object_id = o.id
+ session.close()
+
+ return SyncerBackend(chain, object_id)
diff --git a/apps/cic-eth/cic_eth/sync/base.py b/apps/cic-eth/cic_eth/sync/base.py
new file mode 100644
index 00000000..b678ccb7
--- /dev/null
+++ b/apps/cic-eth/cic_eth/sync/base.py
@@ -0,0 +1,51 @@
+# TODO: extend blocksync model
+class Syncer:
+ """Base class and interface for implementing a block sync poller routine.
+
+ :param bc_cache: Retrieves block cache cursors for chain head and latest processed block.
+ :type bc_cache: cic_eth.sync.SyncerBackend
+ """
+ w3 = None
+ running_global = True
+
+ def __init__(self, bc_cache):
+ self.cursor = None
+ self.bc_cache = bc_cache
+ self.filter = []
+ self.running = True
+
+
+ def chain(self):
+ """Returns the string representation of the chain spec for the chain the syncer is running on.
+
+ :returns: Chain spec string
+ :rtype: str
+ """
+ return self.bc_cache.chain()
+
+
+ def get(self):
+ """Get latest unprocessed blocks.
+
+ :returns: list of block hash strings
+ :rtype: list
+ """
+ raise NotImplementedError()
+
+
+ def process(self, w3, ref):
+ """Process transactions in a single block.
+
+ :param ref: Reference of object to process
+ :type ref: str, 0x-hex
+ """
+ raise NotImplementedError()
+
+
+ def loop(self, interval):
+ """Entry point for syncer loop
+
+ :param interval: Delay in seconds until next attempt if no new blocks are found.
+ :type interval: int
+ """
+ raise NotImplementedError()
diff --git a/apps/cic-eth/cic_eth/sync/error.py b/apps/cic-eth/cic_eth/sync/error.py
new file mode 100644
index 00000000..1d2ff27b
--- /dev/null
+++ b/apps/cic-eth/cic_eth/sync/error.py
@@ -0,0 +1,4 @@
+class LoopDone(Exception):
+ """Exception raised when a syncing is complete.
+ """
+ pass
diff --git a/apps/cic-eth/cic_eth/sync/head.py b/apps/cic-eth/cic_eth/sync/head.py
new file mode 100644
index 00000000..f96a75b7
--- /dev/null
+++ b/apps/cic-eth/cic_eth/sync/head.py
@@ -0,0 +1,51 @@
+# standard imports
+import logging
+
+# third-party imports
+import web3
+
+# local imports
+from .mined import MinedSyncer
+from .base import Syncer
+
+logg = logging.getLogger()
+
+
+class HeadSyncer(MinedSyncer):
+ """Implements the get method in Syncer for retrieving every new mined block.
+
+ :param bc_cache: Retrieves block cache cursors for chain head and latest processed block.
+ :type bc_cache: Object implementing methods from cic_eth.sync.SyncerBackend
+ """
+ def __init__(self, bc_cache):
+ super(HeadSyncer, self).__init__(bc_cache)
+ # TODO: filter not returning all blocks, at least with ganache. kind of defeats the point, then
+ #self.w3_filter = rpc.w3.eth.filter({
+ # 'fromBlock': block_offset,
+ # }) #'latest')
+ #self.bc_cache.set(block_offset, 0)
+ logg.debug('initialized head syncer with offset {}'.format(bc_cache.start()))
+
+ """Implements Syncer.get
+
+ :param w3: Web3 object
+ :type w3: web3.Web3
+ :returns: Block hash of newly mined blocks. if any
+ :rtype: list of str, 0x-hex
+ """
+ def get(self, w3):
+ # Of course, the filter doesn't return the same block dict format as getBlock() so we'll just waste some cycles getting the hashes instead.
+ #hashes = []
+ #for block in self.w3_filter.get_new_entries():
+ # hashes.append(block['blockHash'])
+ #logg.debug('blocks {}'.format(hashes))
+ #return hashes
+ (block_number, tx_number) = self.bc_cache.get()
+ block_hash = []
+ try:
+ block = w3.eth.getBlock(block_number)
+ block_hash.append(block.hash)
+ except web3.exceptions.BlockNotFound:
+ pass
+
+ return block_hash
diff --git a/apps/cic-eth/cic_eth/sync/history.py b/apps/cic-eth/cic_eth/sync/history.py
new file mode 100644
index 00000000..c75602b5
--- /dev/null
+++ b/apps/cic-eth/cic_eth/sync/history.py
@@ -0,0 +1,74 @@
+# standard imports
+import logging
+
+# third-party imports
+from web3.exceptions import BlockNotFound
+from .error import LoopDone
+
+# local imports
+from .mined import MinedSyncer
+from .base import Syncer
+from cic_eth.db.models.base import SessionBase
+
+logg = logging.getLogger()
+
+
+class HistorySyncer(MinedSyncer):
+ """Implements the get method in Syncer for retrieving all blocks between last processed block before previous shutdown and block height at time of syncer start.
+
+ :param bc_cache: Retrieves block cache cursors for chain head and latest processed block.
+ :type bc_cache: Object implementing methods from cic_eth.sync.SyncerBackend
+ :param mx: Maximum number of blocks to return in one call
+ :type mx: int
+ """
+ def __init__(self, bc_cache, mx=20):
+ super(HistorySyncer, self).__init__(bc_cache)
+ self.max = mx
+
+ self.target = bc_cache.target()
+ logg.info('History syncer target block number {}'.format(self.target))
+
+ session_offset = self.bc_cache.get()
+
+ self.block_offset = session_offset[0]
+ self.tx_offset = session_offset[1]
+ logg.info('History syncer starting at {}:{}'.format(session_offset[0], session_offset[1]))
+
+ self.filter = []
+
+
+ """Implements Syncer.get
+
+ BUG: Should also raise LoopDone when block array is empty after loop.
+
+ :param w3: Web3 object
+ :type w3: web3.Web3
+ :raises LoopDone: If a block is not found.
+ :return: Return a batch of blocks to process
+ :rtype: list of str, 0x-hex
+ """
+ def get(self, w3):
+ sync_db = self.bc_cache
+ height = self.bc_cache.get()
+ logg.debug('height {}'.format(height))
+ block_last = height[0]
+ tx_last = height[1]
+ if not self.running:
+ raise LoopDone((block_last, tx_last))
+ b = []
+ block_target = block_last + self.max
+ if block_target > self.target:
+ block_target = self.target
+ logg.debug('target {} last {} max {}'.format(block_target, block_last, self.max))
+ for i in range(block_last, block_target):
+ if i == self.target:
+ logg.info('reached target {}, exiting'.format(i))
+ self.running = False
+ break
+ bhash = w3.eth.getBlock(i).hash
+ b.append(bhash)
+ logg.debug('appending block {} {}'.format(i, bhash.hex()))
+ if block_last == block_target:
+ logg.info('aleady reached target {}, exiting'.format(self.target))
+ self.running = False
+ return b
diff --git a/apps/cic-eth/cic_eth/sync/mempool.py b/apps/cic-eth/cic_eth/sync/mempool.py
new file mode 100644
index 00000000..a3a62c6d
--- /dev/null
+++ b/apps/cic-eth/cic_eth/sync/mempool.py
@@ -0,0 +1,50 @@
+class MemPoolSyncer(Syncer):
+
+
+ def __init__(self, bc_cache):
+ raise NotImplementedError('incomplete, needs web3 tx to raw transaction conversion')
+ super(MemPoolSyncer, self).__init__(bc_cache)
+# self.w3_filter = Syncer.w3.eth.filter('pending')
+# for tx in tx_cache.txs:
+# self.txs.append(tx)
+# logg.debug('add tx {} to mempoolsyncer'.format(tx))
+#
+#
+# def get(self):
+# return self.w3_filter.get_new_entries()
+#
+#
+# def process(self, tx_hash):
+# tx_hash_hex = tx_hash.hex()
+# if tx_hash_hex in self.txs:
+# logg.debug('syncer already watching {}, skipping'.format(tx_hash_hex))
+# tx = self.w3.eth.getTransaction(tx_hash_hex)
+# serialized_tx = rlp.encode({
+# 'nonce': tx.nonce,
+# 'from': getattr(tx, 'from'),
+# })
+# logg.info('add {} to syncer: {}'.format(tx, serialized_tx))
+# otx = Otx(
+# nonce=tx.nonce,
+# address=getattr(tx, 'from'),
+# tx_hash=tx_hash_hex,
+# signed_tx=serialized_tx,
+# )
+# Otx.session.add(otx)
+# Otx.session.commit()
+#
+#
+# def loop(self, interval):
+# while Syncer.running:
+# logg.debug('loop execute')
+# txs = self.get()
+# logg.debug('got txs {}'.format(txs))
+# for tx in txs:
+# #block_number = self.process(block.hex())
+# self.process(tx)
+# #if block_number > self.bc_cache.head():
+# # self.bc_cache.head(block_number)
+# time.sleep(interval)
+# logg.info("Syncer no longer set to run, gracefully exiting")
+
+
diff --git a/apps/cic-eth/cic_eth/sync/mined.py b/apps/cic-eth/cic_eth/sync/mined.py
new file mode 100644
index 00000000..616eea54
--- /dev/null
+++ b/apps/cic-eth/cic_eth/sync/mined.py
@@ -0,0 +1,103 @@
+# standard imports
+import logging
+import time
+
+# third-party imports
+import celery
+
+# local impotes
+from .base import Syncer
+from cic_eth.queue.tx import set_final_status
+from cic_eth.eth import RpcClient
+
+app = celery.current_app
+logg = logging.getLogger()
+
+
+class MinedSyncer(Syncer):
+ """Base implementation of block processor for mined blocks.
+
+ Loops through all transactions,
+
+ :param bc_cache: Retrieves block cache cursors for chain head and latest processed block.
+ :type bc_cache: Object implementing methods from cic_eth.sync.SyncerBackend
+ """
+
+ def __init__(self, bc_cache):
+ super(MinedSyncer, self).__init__(bc_cache)
+ self.block_offset = 0
+ self.tx_offset = 0
+
+
+ def process(self, w3, ref):
+ """Processes transactions in a single block, advancing transaction (and block) cursor accordingly.
+
+ :param w3: Web3 object
+ :type w3: web3.Web3
+ :param ref: Block reference (hash) to process
+ :type ref: str, 0x-hex
+ :returns: Block number of next unprocessed block
+ :rtype: number
+ """
+ b = w3.eth.getBlock(ref)
+ c = w3.eth.getBlockTransactionCount(ref)
+ s = 0
+ if self.block_offset == b.number:
+ s = self.tx_offset
+
+ logg.debug('processing {} (blocknumber {}, count {}, offset {})'.format(ref, b.number, c, s))
+
+ for i in range(s, c):
+ tx = w3.eth.getTransactionByBlock(ref, i)
+ tx_hash_hex = tx['hash'].hex()
+ rcpt = w3.eth.getTransactionReceipt(tx_hash_hex)
+ logg.debug('{}/{} processing tx {} from block {} {}'.format(i+1, c, tx_hash_hex, b.number, ref))
+ ours = False
+ # TODO: ensure filter loop can complete on graceful shutdown
+ for f in self.filter:
+ #try:
+ task_uuid = f(w3, tx, rcpt, self.chain())
+ #except Exception as e:
+ # logg.error('error in filter {} tx {}: {}'.format(f, tx_hash_hex, e))
+ # continue
+ if task_uuid != None:
+ logg.debug('tx {} passed to celery task {}'.format(tx_hash_hex, task_uuid))
+ s = celery.signature(
+ 'set_final_status',
+ [tx_hash_hex, rcpt['blockNumber'], not rcpt['status']],
+ )
+ s.apply_async()
+ break
+ next_tx = i + 1
+ if next_tx == c:
+ self.bc_cache.set(b.number+1, 0)
+ else:
+ self.bc_cache.set(b.number, next_tx)
+ if c == 0:
+ logg.info('synced block {} has no transactions'.format(b.number))
+ #self.bc_cache.session(b.number+1, 0)
+ self.bc_cache.set(b.number+1, 0)
+ return b['number']
+
+
+
+ def loop(self, interval):
+ """Loop running until the "running" property of Syncer is set to False.
+
+ Retrieves latest unprocessed blocks and processes them.
+
+ :param interval: Delay in seconds until next attempt if no new blocks are found.
+ :type interval: int
+ """
+ while self.running and Syncer.running_global:
+ self.bc_cache.connect()
+ c = RpcClient(self.chain())
+ logg.debug('loop execute')
+ e = self.get(c.w3)
+ logg.debug('got blocks {}'.format(e))
+ for block in e:
+ block_number = self.process(c.w3, block.hex())
+ logg.info('processed block {} {}'.format(block_number, block.hex()))
+ self.bc_cache.disconnect()
+ time.sleep(interval)
+ logg.info("Syncer no longer set to run, gracefully exiting")
diff --git a/apps/cic-eth/cic_eth/sync/retry.py b/apps/cic-eth/cic_eth/sync/retry.py
new file mode 100644
index 00000000..302e4c75
--- /dev/null
+++ b/apps/cic-eth/cic_eth/sync/retry.py
@@ -0,0 +1,71 @@
+# standard imports
+import logging
+import datetime
+import time
+
+# third-party imports
+import celery
+
+# local imports
+from .base import Syncer
+from cic_eth.eth.rpc import RpcClient
+from cic_eth.db.enum import StatusEnum
+from cic_eth.queue.tx import get_status_tx
+
+logg = logging.getLogger()
+
+celery_app = celery.current_app
+
+
+class noop_cache:
+
+ def __init__(self, chain_spec):
+ self.chain_spec = chain_spec
+
+
+ def chain(self):
+ return self.chain_spec
+
+
+class RetrySyncer(Syncer):
+
+ def __init__(self, chain_spec, stalled_grace_seconds, failed_grace_seconds=None, final_func=None):
+ cache = noop_cache(chain_spec)
+ super(RetrySyncer, self).__init__(cache)
+ if failed_grace_seconds == None:
+ failed_grace_seconds = stalled_grace_seconds
+ self.stalled_grace_seconds = stalled_grace_seconds
+ self.failed_grace_seconds = failed_grace_seconds
+ self.final_func = final_func
+
+
+ def get(self, w3):
+# before = datetime.datetime.utcnow() - datetime.timedelta(seconds=self.failed_grace_seconds)
+# failed_txs = get_status_tx(
+# StatusEnum.SENDFAIL.value,
+# before=before,
+# )
+ before = datetime.datetime.utcnow() - datetime.timedelta(seconds=self.stalled_grace_seconds)
+ stalled_txs = get_status_tx(
+ StatusEnum.SENT.value,
+ before=before,
+ )
+ # return list(failed_txs.keys()) + list(stalled_txs.keys())
+ return stalled_txs
+
+
+ def process(self, w3, ref):
+ logg.debug('tx {}'.format(ref))
+ for f in self.filter:
+ f(w3, ref, None, str(self.chain()))
+
+
+ def loop(self, interval):
+ chain_str = str(self.chain())
+ while self.running and Syncer.running_global:
+ c = RpcClient(self.chain())
+ for tx in self.get(c.w3):
+ self.process(c.w3, tx)
+ if self.final_func != None:
+ self.final_func(chain_str)
+ time.sleep(interval)
diff --git a/apps/cic-eth/cic_eth/version.py b/apps/cic-eth/cic_eth/version.py
new file mode 100644
index 00000000..6a95f248
--- /dev/null
+++ b/apps/cic-eth/cic_eth/version.py
@@ -0,0 +1,43 @@
+# standard imports
+import os
+import time
+import logging
+
+# third-party imports
+import semver
+
+version = (
+ 0,
+ 10,
+ 0,
+ 'alpha.22',
+ )
+
+version_object = semver.VersionInfo(
+ major=version[0],
+ minor=version[1],
+ patch=version[2],
+ prerelease=version[3],
+ )
+
+
+def git_hash():
+ import subprocess
+ git_diff = subprocess.run(['git', 'diff'], capture_output=True)
+ git_hash = subprocess.run(['git', 'rev-parse', 'HEAD'], capture_output=True)
+ git_hash_brief = git_hash.stdout.decode('utf-8')[:8]
+ return git_hash_brief
+
+version_string = str(version_object)
+
+try:
+ version_git = git_hash()
+ version_string += '+build.{}'.format(version_git)
+except FileNotFoundError:
+ time_string_pair = str(time.time()).split('.')
+ version_string += '+build.{}{:<09d}'.format(
+ time_string_pair[0],
+ int(time_string_pair[1]),
+ )
+
+__version_string__ = version_string
diff --git a/apps/cic-eth/config/bancor.ini b/apps/cic-eth/config/bancor.ini
new file mode 100644
index 00000000..443924f5
--- /dev/null
+++ b/apps/cic-eth/config/bancor.ini
@@ -0,0 +1,2 @@
+[bancor]
+dir = /usr/local/share/cic/bancor
diff --git a/apps/cic-eth/config/celery.ini b/apps/cic-eth/config/celery.ini
new file mode 100644
index 00000000..af9fe5b1
--- /dev/null
+++ b/apps/cic-eth/config/celery.ini
@@ -0,0 +1,3 @@
+[celery]
+broker_url = redis://
+result_url = redis://
diff --git a/apps/cic-eth/config/cic.ini b/apps/cic-eth/config/cic.ini
new file mode 100644
index 00000000..2ad870e2
--- /dev/null
+++ b/apps/cic-eth/config/cic.ini
@@ -0,0 +1,8 @@
+[cic]
+registry_address =
+token_index_address =
+accounts_index_address =
+declarator_address =
+approval_escrow_address =
+chain_spec =
+tx_retry_delay =
diff --git a/apps/cic-eth/config/custody.ini b/apps/cic-eth/config/custody.ini
new file mode 100644
index 00000000..8523f03e
--- /dev/null
+++ b/apps/cic-eth/config/custody.ini
@@ -0,0 +1,2 @@
+[custody]
+account_index_address =
diff --git a/apps/cic-eth/config/database.ini b/apps/cic-eth/config/database.ini
new file mode 100644
index 00000000..43de56bf
--- /dev/null
+++ b/apps/cic-eth/config/database.ini
@@ -0,0 +1,9 @@
+[database]
+NAME=cic-eth
+USER=postgres
+PASSWORD=
+HOST=localhost
+PORT=5432
+ENGINE=postgresql
+DRIVER=psycopg2
+DEBUG=
diff --git a/apps/cic-eth/config/dispatcer.ini b/apps/cic-eth/config/dispatcer.ini
new file mode 100644
index 00000000..85dea83e
--- /dev/null
+++ b/apps/cic-eth/config/dispatcer.ini
@@ -0,0 +1,2 @@
+[dispatcher]
+loop_interval = 0.9
diff --git a/apps/cic-eth/config/eth.ini b/apps/cic-eth/config/eth.ini
new file mode 100644
index 00000000..1a6935e1
--- /dev/null
+++ b/apps/cic-eth/config/eth.ini
@@ -0,0 +1,8 @@
+[eth]
+#ws_provider = ws://localhost:8546
+#ttp_provider = http://localhost:8545
+provider = http://localhost:8545
+gas_provider_address =
+#chain_id =
+abi_dir = /usr/local/share/cic/solidity/abi
+account_accounts_index_writer =
diff --git a/apps/cic-eth/config/lash/bancor.ini b/apps/cic-eth/config/lash/bancor.ini
new file mode 100644
index 00000000..0bff1ce0
--- /dev/null
+++ b/apps/cic-eth/config/lash/bancor.ini
@@ -0,0 +1,3 @@
+[bancor]
+registry_address = 0xb708175e3f6Cd850643aAF7B32212AFad50e2549
+dir = /home/lash/src/ext/cic/grassrootseconomics/cic-platform/contrib/bancor_0.6
diff --git a/apps/cic-eth/config/lash/database.ini b/apps/cic-eth/config/lash/database.ini
new file mode 100644
index 00000000..77ac57d4
--- /dev/null
+++ b/apps/cic-eth/config/lash/database.ini
@@ -0,0 +1,8 @@
+[database]
+NAME=cic-eth
+USER=postgres
+PASSWORD=
+HOST=localhost
+PORT=5432
+ENGINE=sqlite
+DRIVER=pysqlite
diff --git a/apps/cic-eth/config/lash/eth.ini b/apps/cic-eth/config/lash/eth.ini
new file mode 100644
index 00000000..324dba08
--- /dev/null
+++ b/apps/cic-eth/config/lash/eth.ini
@@ -0,0 +1,3 @@
+[eth]
+gas_provider_address = 0xEb3907eCad74a0013c259D5874AE7f22DcBcC95C
+provider = http://localhost:8545
diff --git a/apps/cic-eth/config/lash/redis.ini b/apps/cic-eth/config/lash/redis.ini
new file mode 100644
index 00000000..d21df9f8
--- /dev/null
+++ b/apps/cic-eth/config/lash/redis.ini
@@ -0,0 +1,3 @@
+[celery]
+broker_url = redis://
+result_url = file://
diff --git a/apps/cic-eth/config/lash/signer.ini b/apps/cic-eth/config/lash/signer.ini
new file mode 100644
index 00000000..9222aef8
--- /dev/null
+++ b/apps/cic-eth/config/lash/signer.ini
@@ -0,0 +1,2 @@
+[signer]
+socket_path = /tmp/crypto-dev-signer/jsonrpc.ipc
diff --git a/apps/cic-eth/config/lash/ssl.ini b/apps/cic-eth/config/lash/ssl.ini
new file mode 100644
index 00000000..746ff856
--- /dev/null
+++ b/apps/cic-eth/config/lash/ssl.ini
@@ -0,0 +1,6 @@
+[SSL]
+enable_client = true
+cert_file = /home/lash/src/ext/cic/grassrootseconomics/cic-auth/examples/client.crt
+key_file = /home/lash/src/ext/cic/grassrootseconomics/cic-auth/examples/client.key
+password = test
+ca_file = /home/lash/src/ext/cic/grassrootseconomics/cic-auth/examples/ca.crt
diff --git a/apps/cic-eth/config/lash/syncer.ini b/apps/cic-eth/config/lash/syncer.ini
new file mode 100644
index 00000000..97236743
--- /dev/null
+++ b/apps/cic-eth/config/lash/syncer.ini
@@ -0,0 +1,2 @@
+[SYNCER]
+loop_interval = 1
diff --git a/apps/cic-eth/config/redis.ini b/apps/cic-eth/config/redis.ini
new file mode 100644
index 00000000..1a7acb52
--- /dev/null
+++ b/apps/cic-eth/config/redis.ini
@@ -0,0 +1,4 @@
+[redis]
+host =
+port =
+db =
diff --git a/apps/cic-eth/config/signer.ini b/apps/cic-eth/config/signer.ini
new file mode 100644
index 00000000..0fa1f015
--- /dev/null
+++ b/apps/cic-eth/config/signer.ini
@@ -0,0 +1,5 @@
+[signer]
+socket_path = /run/crypto-dev-signer/jsonrpc.ipc
+secret = deedbeef
+database_name = signer_test
+dev_keys_path =
diff --git a/apps/cic-eth/config/ssl.ini b/apps/cic-eth/config/ssl.ini
new file mode 100644
index 00000000..bd494729
--- /dev/null
+++ b/apps/cic-eth/config/ssl.ini
@@ -0,0 +1,6 @@
+[SSL]
+enable_client = false
+cert_file =
+key_file =
+password =
+ca_file =
diff --git a/apps/cic-eth/config/syncer.ini b/apps/cic-eth/config/syncer.ini
new file mode 100644
index 00000000..97236743
--- /dev/null
+++ b/apps/cic-eth/config/syncer.ini
@@ -0,0 +1,2 @@
+[SYNCER]
+loop_interval = 1
diff --git a/apps/cic-eth/config/tasks.ini b/apps/cic-eth/config/tasks.ini
new file mode 100644
index 00000000..5519eaac
--- /dev/null
+++ b/apps/cic-eth/config/tasks.ini
@@ -0,0 +1,3 @@
+[tasks]
+transfer_callbacks = taskcall:cic_eth.callbacks.noop.noop
+trace_queue_status =
diff --git a/apps/cic-eth/config/test/accounts.ini b/apps/cic-eth/config/test/accounts.ini
new file mode 100644
index 00000000..819a83bc
--- /dev/null
+++ b/apps/cic-eth/config/test/accounts.ini
@@ -0,0 +1,2 @@
+[accounts]
+writer_address =
diff --git a/apps/cic-eth/config/test/bancor.ini b/apps/cic-eth/config/test/bancor.ini
new file mode 100644
index 00000000..961c0e6b
--- /dev/null
+++ b/apps/cic-eth/config/test/bancor.ini
@@ -0,0 +1,2 @@
+[bancor]
+dir = tests/testdata/bancor
diff --git a/apps/cic-eth/config/test/celery.ini b/apps/cic-eth/config/test/celery.ini
new file mode 100644
index 00000000..1f12b77f
--- /dev/null
+++ b/apps/cic-eth/config/test/celery.ini
@@ -0,0 +1,5 @@
+[celery]
+broker_url = filesystem://
+result_url = filesystem://
+#broker_url = redis://
+#result_url = redis://
diff --git a/apps/cic-eth/config/test/cic.ini b/apps/cic-eth/config/test/cic.ini
new file mode 100644
index 00000000..efd8fc4b
--- /dev/null
+++ b/apps/cic-eth/config/test/cic.ini
@@ -0,0 +1,8 @@
+[cic]
+registry_address =
+token_index_address =
+accounts_index_address =
+declarator_address =
+approval_escrow_address =
+chain_spec =
+trusted_addresses =
diff --git a/apps/cic-eth/config/test/database.ini b/apps/cic-eth/config/test/database.ini
new file mode 100644
index 00000000..8c355ef3
--- /dev/null
+++ b/apps/cic-eth/config/test/database.ini
@@ -0,0 +1,9 @@
+[database]
+NAME=cic-eth-test
+USER=postgres
+PASSWORD=
+HOST=localhost
+PORT=5432
+ENGINE=sqlite
+DRIVER=pysqlite
+DEBUG=
diff --git a/apps/cic-eth/config/test/dispatcher.ini b/apps/cic-eth/config/test/dispatcher.ini
new file mode 100644
index 00000000..f7b270a5
--- /dev/null
+++ b/apps/cic-eth/config/test/dispatcher.ini
@@ -0,0 +1,2 @@
+[dispatcher]
+loop_interval = 0.1
diff --git a/apps/cic-eth/config/test/eth.ini b/apps/cic-eth/config/test/eth.ini
new file mode 100644
index 00000000..4c9edda1
--- /dev/null
+++ b/apps/cic-eth/config/test/eth.ini
@@ -0,0 +1,8 @@
+[eth]
+#ws_provider = ws://localhost:8546
+#ttp_provider = http://localhost:8545
+provider = http://localhost:8545
+gas_provider_address =
+#chain_id =
+abi_dir =
+faucet_giver_address =
diff --git a/apps/cic-eth/config/test/redis.ini b/apps/cic-eth/config/test/redis.ini
new file mode 100644
index 00000000..2fb1d805
--- /dev/null
+++ b/apps/cic-eth/config/test/redis.ini
@@ -0,0 +1,4 @@
+[redis]
+host =
+port =
+db =
diff --git a/apps/cic-eth/config/test/signer.ini b/apps/cic-eth/config/test/signer.ini
new file mode 100644
index 00000000..0fa1f015
--- /dev/null
+++ b/apps/cic-eth/config/test/signer.ini
@@ -0,0 +1,5 @@
+[signer]
+socket_path = /run/crypto-dev-signer/jsonrpc.ipc
+secret = deedbeef
+database_name = signer_test
+dev_keys_path =
diff --git a/apps/cic-eth/config/test/ssl.ini b/apps/cic-eth/config/test/ssl.ini
new file mode 100644
index 00000000..bd494729
--- /dev/null
+++ b/apps/cic-eth/config/test/ssl.ini
@@ -0,0 +1,6 @@
+[SSL]
+enable_client = false
+cert_file =
+key_file =
+password =
+ca_file =
diff --git a/apps/cic-eth/config/test/syncer.ini b/apps/cic-eth/config/test/syncer.ini
new file mode 100644
index 00000000..97236743
--- /dev/null
+++ b/apps/cic-eth/config/test/syncer.ini
@@ -0,0 +1,2 @@
+[SYNCER]
+loop_interval = 1
diff --git a/apps/cic-eth/crypto_dev_signer_config/config.ini b/apps/cic-eth/crypto_dev_signer_config/config.ini
new file mode 100644
index 00000000..f87759df
--- /dev/null
+++ b/apps/cic-eth/crypto_dev_signer_config/config.ini
@@ -0,0 +1,4 @@
+[signer]
+secret = deadbeef
+#database = crypto-dev-signer
+socket_path = /run/crypto-dev-signer/jsonrpc.ipc
diff --git a/apps/cic-eth/crypto_dev_signer_config/database.ini b/apps/cic-eth/crypto_dev_signer_config/database.ini
new file mode 100644
index 00000000..5eec2537
--- /dev/null
+++ b/apps/cic-eth/crypto_dev_signer_config/database.ini
@@ -0,0 +1,8 @@
+[database]
+NAME=cic-signer
+USER=
+PASSWORD=
+HOST=
+PORT=
+ENGINE=
+DRIVER=
diff --git a/apps/cic-eth/doc/flowcharts/Makefile b/apps/cic-eth/doc/flowcharts/Makefile
new file mode 100644
index 00000000..a5969abb
--- /dev/null
+++ b/apps/cic-eth/doc/flowcharts/Makefile
@@ -0,0 +1,15 @@
+INPUTS = $(wildcard *.dot)
+OUTPUTS = $(patsubst %.dot, %.png, $(INPUTS))
+
+.SUFFIXES: .dot .png
+
+.dot.png:
+ dot -T png $(basename $@).dot > $@
+
+all: $(OUTPUTS)
+
+clean:
+ rm -vf *.png
+
+.PHONY: clean
+
diff --git a/apps/cic-eth/doc/flowcharts/account_tasks.dot b/apps/cic-eth/doc/flowcharts/account_tasks.dot
new file mode 100644
index 00000000..29a628a8
--- /dev/null
+++ b/apps/cic-eth/doc/flowcharts/account_tasks.dot
@@ -0,0 +1,21 @@
+digraph {
+
+ create_account [
+ label="CIC-ETH API:\create account";
+ shape="ellipse";
+ ];
+
+ callback [
+ label="callback";
+ shape="ellipse";
+ style="dashed";
+ ];
+
+ create_account -> "eth.account.create";
+ create_account -> "eth.account.register" -> "eth.account.cache_account_data";
+ "eth.account.register" -> "queue.tx,create";
+ "eth.account.register" -> "eth.tx.check_gas";
+ "eth.tx.check_gas" -> "eth.tx.refill_gas" [ style="dashed" ];
+ "eth.tx.check_gas" -> callback [ style="dashed" ];
+ "eth.tx.refill_gas" -> callback [ style="dashed" ];
+}
diff --git a/apps/cic-eth/doc/flowcharts/balance_tasks.dot b/apps/cic-eth/doc/flowcharts/balance_tasks.dot
new file mode 100644
index 00000000..6a2d7fde
--- /dev/null
+++ b/apps/cic-eth/doc/flowcharts/balance_tasks.dot
@@ -0,0 +1,16 @@
+digraph {
+ balance [
+ label="CIC-ETH API:\nbalance";
+ shape="ellipse";
+ ];
+
+ callback [
+ label="callback";
+ shape="ellipse";
+ style="dashed";
+ ];
+
+ balance -> "eth.token.resolve_tokens_by_symbol"
+ "eth.token.resolve_tokens_by_symbol" -> "eth.token.balance"
+ "eth.token.balance" -> callback [ style="dashed" ];
+}
diff --git a/apps/cic-eth/doc/flowcharts/callback_gift.dot b/apps/cic-eth/doc/flowcharts/callback_gift.dot
new file mode 100644
index 00000000..576fe4e6
--- /dev/null
+++ b/apps/cic-eth/doc/flowcharts/callback_gift.dot
@@ -0,0 +1,10 @@
+digraph {
+
+ tx [
+ label="CIC-MANAGER\ncallbacks filter, tokengift";
+ shape="ellipse";
+ ];
+
+ tx -> callback [ style="dashed" ];
+
+}
diff --git a/apps/cic-eth/doc/flowcharts/convert_tasks.dot b/apps/cic-eth/doc/flowcharts/convert_tasks.dot
new file mode 100644
index 00000000..79bef521
--- /dev/null
+++ b/apps/cic-eth/doc/flowcharts/convert_tasks.dot
@@ -0,0 +1,57 @@
+digraph {
+
+ convert_transfer [
+ label="CIC-ETH API:\nconvert_transfer";
+ shape="ellipse";
+ ];
+
+ callback [
+ label="callback";
+ shape="ellipse";
+ style="dashed";
+ ];
+
+ convert_approve_zero [
+ label="eth.token.approve (zero)";
+ shape="ellipse";
+ ];
+
+ convert_approve_amount [
+ label="eth.token.approve (amount)";
+ shape="ellipse";
+ ];
+
+ cache_approve_zero [
+ label="eth.token.otx_cache_approve";
+ shape="ellipse";
+ ];
+
+ cache_approve_amount [
+ label="eth.token.otx_cache_approve";
+ shape="ellipse";
+ ];
+
+ queue_approve_zero [
+ label="queue.tx.create";
+ shape="ellipse";
+ ];
+
+ queue_approve_amount [
+ label="queue.tx.create";
+ shape="ellipse";
+ ];
+
+ convert_transfer -> "eth.token.resolve_tokens_by_symbol" -> "eth.bancor.convert_with_default_reserve";
+ "eth.bancor.convert_with_default_reserve" -> convert_approve_zero -> cache_approve_zero;
+ convert_approve_zero -> queue_approve_zero;
+ "eth.bancor.convert_with_default_reserve" -> convert_approve_amount -> cache_approve_amount;
+ convert_approve_amount -> queue_approve_amount;
+ "eth.bancor.convert_with_default_reserve" -> "eth.bancor.otx_cache_convert";
+ "eth.bancor.convert_with_default_reserve" -> "queue.tx.create";
+ "eth.bancor.convert_with_default_reserve" -> "eth.tx.check_gas";
+ "eth.bancor.convert_with_default_reserve" -> "eth.bancor.save_convert_recipient";
+ "eth.tx.check_gas" -> "eth.tx.refill_gas" [ style="dashed" ];
+ "eth.tx.check_gas" -> callback [ style="dashed" ];
+ "eth.tx.refill_gas" -> callback [ style="dashed" ];
+
+}
diff --git a/apps/cic-eth/doc/flowcharts/converttransfer_tasks.dot b/apps/cic-eth/doc/flowcharts/converttransfer_tasks.dot
new file mode 100644
index 00000000..93da1a6b
--- /dev/null
+++ b/apps/cic-eth/doc/flowcharts/converttransfer_tasks.dot
@@ -0,0 +1,15 @@
+digraph {
+
+ tx [
+ label="CIC-MANAGER;\nconvert_filter";
+ shape="ellipse";
+ ];
+
+ tx -> "eth.bancor.transfer_converted" -> "eth.token.otx_cache_transfer";
+ "eth.bancor.transfer_converted" -> "queue.tx.create";
+ "eth.bancor.transfer_converted" -> "eth.bancor.save_convert_transfer";
+ "eth.bancor.transfer_converted" -> "eth.tx.check_gas";
+ "eth.tx.check_gas" -> "eth.tx.refill_gas" [ style="dashed" ];
+ "eth.tx.check_gas" -> callback [ style="dashed" ];
+ "eth.tx.refill_gas" -> callback [ style="dashed" ];
+}
diff --git a/apps/cic-eth/doc/flowcharts/dispatch.dot b/apps/cic-eth/doc/flowcharts/dispatch.dot
new file mode 100644
index 00000000..b715aedc
--- /dev/null
+++ b/apps/cic-eth/doc/flowcharts/dispatch.dot
@@ -0,0 +1,159 @@
+digraph G {
+
+ send [
+ label = "transfer";
+ shape = "ellipse";
+ ];
+
+ params [
+ label = "get token, value, sender, recipient";
+ shape = "parallelogram";
+ ];
+
+ token_lookup [
+ label = "token known?";
+ shape = "diamond";
+ ];
+
+ token_lookup_x [
+ xlabel = "UnknownTokenError";
+ shape = "point";
+ ];
+
+ nonce [
+ label = "get sender nonce";
+ shape = "box";
+ style = "dashed";
+ ];
+
+ sign_tx [
+ label = "sign tx";
+ shape = "box";
+ ];
+
+ sign_tx_x [
+ xlabel = "SignerError";
+ shape = "point";
+ ];
+
+ cache [
+ label = "queue signed tx";
+ shape = "cylinder";
+ ];
+
+ gas [
+ label = "safe sender balance for gas?";
+ shape = "diamond";
+ ];
+
+ gas_rq_exists [
+ label = "gas request already pending?"
+ shape = "diamond";
+ ];
+
+ gas_rq [
+ label = "queue request for gas";
+ shape = "parallelogram";
+ ];
+
+ gas_tx [
+ label = "enough gas for this tx?";
+ shape = "diamond";
+ ];
+
+ cache_waitforgas [
+ label = "set status to WAITFORGAS";
+ shape = "parallelogram";
+ ];
+
+ gas_tx_x [
+ xlabel = "OutOfGasError";
+ shape = "point";
+ ];
+
+ tx_fail [
+ label = "temporary error?"
+ shape = "diamond"
+ ];
+
+ tx_fail_known [
+ label = "known error?"
+ shape = "diamond"
+ ];
+
+ cache_sent [
+ label = "set tx status to SENT";
+ shape = "cylinder";
+ ];
+
+ cache_unsent [
+ label = "set tx status to SENDFAIL";
+ shape = "cylinder";
+ ];
+
+ cache_revert [
+ label = "set tx status to REVERTED";
+ shape = "cylinder";
+ ];
+
+ cache_fubar [
+ label = "set tx status to FUBAR";
+ shape = "cylinder";
+ ];
+
+ send_tx_x_tmp [
+ xlabel = "TemporaryTxError";
+ shape = "point";
+ ];
+
+ send_tx_x_final [
+ xlabel = "PermanentTxError";
+ shape = "point";
+ ];
+
+ ok [
+ shape = "point";
+ ];
+
+
+ send -> params -> token_lookup;
+
+ token_lookup -> token_lookup_x [ label = "no"; ];
+
+ token_lookup -> nonce [ label = "yes"; ];
+ nonce -> sign_tx;
+
+ sign_tx -> sign_tx_x [ label = "fail"; ];
+
+ sign_tx -> cache [ label = "ok"; ];
+ cache -> gas;
+
+ gas -> gas_rq_exists [ label = "no"; ];
+ gas_rq_exists -> gas_rq [ label = "no"; ];
+ gas_rq_exists -> gas_tx [ label = "yes"; ];
+ gas_rq -> gas_tx;
+
+ gas -> send_tx [ label = "yes"; ];
+
+ gas_tx -> cache_waitforgas -> gas_tx_x [ label = "no"; ];
+
+ gas_tx -> send_tx [ label = "yes"; ];
+
+ send_tx -> tx_fail [ label = "fail"; ];
+
+ tx_fail -> cache_unsent [ label = "yes"; ];
+ cache_unsent -> send_tx_x_tmp;
+
+ tx_fail -> tx_fail_known [ label = "no"; ];
+
+ tx_fail_known -> cache_fubar [ label = "no"; ];
+
+ cache_fubar -> send_tx_x_final;
+
+ tx_fail_known -> cache_revert [ label = "yes"; ];
+ cache_revert -> send_tx_x_final;
+
+ send_tx -> cache_sent [ label = "ok"; ];
+ cache_sent -> ok;
+
+}
diff --git a/apps/cic-eth/doc/flowcharts/readme b/apps/cic-eth/doc/flowcharts/readme
new file mode 100644
index 00000000..1246e436
--- /dev/null
+++ b/apps/cic-eth/doc/flowcharts/readme
@@ -0,0 +1,3 @@
+All *_tasks.dot files describe literal the literal tasks that get executed on the associated entry points. CIC-ETH API entrypoints refer to methods in "cic_eth/api/api_task.py"
+
+All *_semantic.dot files are flow charts decribing the processing of the associated entry points.
diff --git a/apps/cic-eth/doc/flowcharts/register_tasks.dot b/apps/cic-eth/doc/flowcharts/register_tasks.dot
new file mode 100644
index 00000000..2541b856
--- /dev/null
+++ b/apps/cic-eth/doc/flowcharts/register_tasks.dot
@@ -0,0 +1,12 @@
+digraph {
+
+ send [
+ label="CIC-MANAGER\nregistration filter";
+ shape="ellipse";
+ ];
+
+ send -> "eth.account.gift" -> "eth.account.cache_gift_data";
+ "eth.account.gift" -> "queue.tx.create";
+ "eth.account.gift" -> "eth.tx.check_gas";
+ "eth.tx.check_gas" -> "eth.tx.refill_gas" [ style="dashed" ];
+}
diff --git a/apps/cic-eth/doc/flowcharts/send_tasks.dot b/apps/cic-eth/doc/flowcharts/send_tasks.dot
new file mode 100644
index 00000000..847960cd
--- /dev/null
+++ b/apps/cic-eth/doc/flowcharts/send_tasks.dot
@@ -0,0 +1,17 @@
+digraph {
+
+ dispatcher [
+ label="CIC-ETH-DISPATCHER";
+ shape="ellipse";
+ ];
+
+ send [
+ label="eth.tx.send";
+ shape="ellipse";
+ ];
+
+ dispatcher -> send;
+ send -> "queue.tx.set_[sent|final|fubar]_status";
+ send -> "(send tx on blockchain)";
+ "queue.tx.set_[sent|final|fubar]_status" -> send [ style="dashed" ];
+}
diff --git a/apps/cic-eth/doc/flowcharts/transaction_semantic.dot b/apps/cic-eth/doc/flowcharts/transaction_semantic.dot
new file mode 100644
index 00000000..2374ac1d
--- /dev/null
+++ b/apps/cic-eth/doc/flowcharts/transaction_semantic.dot
@@ -0,0 +1,104 @@
+digraph G {
+
+ send [
+ label = "transfer";
+ shape = "ellipse";
+ ];
+
+ params [
+ label = "get token, value, sender, recipient";
+ shape = "parallelogram";
+ ];
+
+ token_lookup [
+ label = "token known?";
+ shape = "diamond";
+ ];
+
+ token_lookup_x [
+ xlabel = "UnknownTokenError";
+ shape = "point";
+ ];
+
+ nonce [
+ label = "get sender nonce";
+ shape = "box";
+ style = "dashed";
+ ];
+
+ sign_tx [
+ label = "sign tx";
+ shape = "box";
+ ];
+
+ sign_tx_x [
+ xlabel = "SignerError";
+ shape = "point";
+ ];
+
+ cache [
+ label = "queue signed tx";
+ shape = "cylinder";
+ ];
+
+ gas [
+ label = "safe sender balance for gas?";
+ shape = "diamond";
+ ];
+
+ gas_rq_exists [
+ label = "gas request already pending?"
+ shape = "diamond";
+ ];
+
+ gas_rq [
+ label = "queue request for gas";
+ shape = "parallelogram";
+ ];
+
+ gas_tx [
+ label = "enough gas for this tx?";
+ shape = "diamond";
+ ];
+
+ cache_waitforgas [
+ label = "set status to WAITFORGAS";
+ shape = "parallelogram";
+ ];
+
+ gas_tx_x [
+ xlabel = "OutOfGasError";
+ shape = "point";
+ ];
+
+ ok [
+ xlabel = "OK";
+ shape = "point";
+ ];
+
+
+ send -> params -> token_lookup;
+
+ token_lookup -> token_lookup_x [ label = "no"; ];
+
+ token_lookup -> nonce [ label = "yes"; ];
+ nonce -> sign_tx;
+
+ sign_tx -> sign_tx_x [ label = "fail"; ];
+
+ sign_tx -> cache [ label = "ok"; ];
+ cache -> gas;
+
+ gas -> gas_rq_exists [ label = "no"; ];
+ gas_rq_exists -> gas_rq [ label = "no"; ];
+ gas_rq_exists -> gas_tx [ label = "yes"; ];
+ gas_rq -> gas_tx;
+
+ gas -> ok [ label = "yes"; ];
+
+ gas_tx -> cache_waitforgas -> gas_tx_x [ label = "no"; ];
+
+ gas_tx -> ok [ label = "yes"; ];
+
+
+}
diff --git a/apps/cic-eth/doc/flowcharts/transaction_tasks.dot b/apps/cic-eth/doc/flowcharts/transaction_tasks.dot
new file mode 100644
index 00000000..41d82bd7
--- /dev/null
+++ b/apps/cic-eth/doc/flowcharts/transaction_tasks.dot
@@ -0,0 +1,22 @@
+digraph {
+
+ send [
+ label="CIC-ETH API:\ntransfer";
+ shape="ellipse";
+ ];
+
+ callback [
+ label="callback";
+ shape="ellipse";
+ style="dashed";
+ ];
+
+ send -> "eth.token.resolve_tokens_by_symbol"
+ "eth.token.resolve_tokens_by_symbol" -> "eth.token.transfer" -> "eth.queue.otx_cache_transfer";
+ "eth.token.transfer" -> "eth.queue.tx.create";
+ "eth.token.transfer" -> "eth.tx.check_gas";
+ "eth.tx.check_gas" -> "eth.tx.refill_gas" [ style="dashed" ];
+ "eth.tx.check_gas" -> callback [ style="dashed" ];
+ "eth.tx.refill_gas" -> callback [ style="dashed" ];
+
+}
diff --git a/apps/cic-eth/doc/flowcharts/transferauthorization_tasks.dot b/apps/cic-eth/doc/flowcharts/transferauthorization_tasks.dot
new file mode 100644
index 00000000..86ee737c
--- /dev/null
+++ b/apps/cic-eth/doc/flowcharts/transferauthorization_tasks.dot
@@ -0,0 +1,65 @@
+digraph {
+
+ transferauthorization [
+ label="CIC-ETH API:\ntransfer authorization";
+ shape="ellipse";
+ ];
+
+ callback [
+ label="callback";
+ shape="ellipse";
+ style="dashed";
+ ];
+
+ resolve_transferauthorization [
+ label="eth.token.resolve_tokens_by_symbol";
+ shape="ellipse";
+ ];
+
+ resolve_approve [
+ label="eth.token.resolve_tokens_by_symbol";
+ shape="ellipse";
+ ];
+
+ checkgas_transferauthorization [
+ label="eth.tx.check_gas";
+ shape="ellipse";
+ ];
+
+ checkgas_approve [
+ label="eth.tx.check_gas";
+ shape="ellipse";
+ ];
+
+ refill_transferauthorization [
+ label="eth.tx.refill_gas";
+ shape="ellipse";
+ ];
+
+ refill_approve [
+ label="eth.tx.refill_gas";
+ shape="ellipse";
+ ];
+
+ queue_create_transferauthorization [
+ label="queue.tx.create";
+ shape="ellipse";
+ ];
+
+ queue_create_approve [
+ label="queue.tx.create";
+ shape="ellipse";
+ ];
+
+ transferauthorization -> resolve_approve -> "eth.token.approve" -> "eth.token.otx_cache_approve";
+ "eth.token.approve" -> queue_create_approve;
+ "eth.token.approve" -> checkgas_approve;
+ checkgas_approve -> refill_approve [ style="dashed" ];
+
+ transferauthorization -> resolve_transferauthorization -> "eth.request.transfer_approve_request" -> "eth.token.otx_cache_transfer_approval_request";
+ "eth.request.transfer_approve_request" -> queue_create_transferauthorization;
+ "eth.request.transfer_approve_request" -> checkgas_transferauthorization;
+ checkgas_transferauthorization -> refill_transferauthorization [ style="dashed" ];
+ checkgas_approve -> callback [ style="dashed" ];
+ refill_approve -> callback [ style="dashed" ];
+}
diff --git a/apps/cic-eth/doc/flowcharts/tx_tasks.dot b/apps/cic-eth/doc/flowcharts/tx_tasks.dot
new file mode 100644
index 00000000..0f3927cb
--- /dev/null
+++ b/apps/cic-eth/doc/flowcharts/tx_tasks.dot
@@ -0,0 +1,9 @@
+digraph {
+
+ tx [
+ label="CIC-MANAGER;\ntx_filter";
+ shape="ellipse";
+ ];
+
+ tx -> "queue.tx.set_final_status";
+}
diff --git a/apps/cic-eth/doc/sphinx/Makefile b/apps/cic-eth/doc/sphinx/Makefile
new file mode 100644
index 00000000..f9d4fcb2
--- /dev/null
+++ b/apps/cic-eth/doc/sphinx/Makefile
@@ -0,0 +1,20 @@
+# Minimal makefile for Sphinx documentation
+#
+
+# You can set these variables from the command line, and also
+# from the environment for the first two.
+SPHINXOPTS ?=
+SPHINXBUILD ?= sphinx-build
+SOURCEDIR = .
+BUILDDIR = _build
+
+# Put it first so that "make" without argument is like "make help".
+help:
+ @PYTHONPATH=../.. $(SPHINXBUILD) -M help "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)
+
+.PHONY: help Makefile
+
+# Catch-all target: route all unknown targets to Sphinx using the new
+# "make mode" option. $(O) is meant as a shortcut for $(SPHINXOPTS).
+%: Makefile
+ @PYTHONPATH=../.. $(SPHINXBUILD) -M $@ "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)
diff --git a/apps/cic-eth/doc/sphinx/code.rst b/apps/cic-eth/doc/sphinx/code.rst
new file mode 100644
index 00000000..97fd314e
--- /dev/null
+++ b/apps/cic-eth/doc/sphinx/code.rst
@@ -0,0 +1,56 @@
+Package cic_eth
+===============
+
+.. automodule:: cic_eth
+
+
+Module eth
+==========
+
+.. automodule:: cic_eth.eth
+ :members:
+
+.. automodule:: cic_eth.eth.factory
+ :members:
+
+.. automodule:: cic_eth.eth.tx
+ :members:
+
+.. automodule:: cic_eth.eth.account
+ :members:
+
+.. automodule:: cic_eth.eth.bancor
+ :members:
+
+.. automodule:: cic_eth.eth.token
+ :members:
+
+.. automodule:: cic_eth.eth.tasks
+ :members:
+
+
+Module queue
+============
+
+.. automodule:: cic_eth.queue.tx
+ :members:
+
+
+Module sync
+===========
+
+.. automodule:: cic_eth.sync.base
+ :members:
+
+.. automodule:: cic_eth.sync.mined
+ :members:
+
+.. automodule:: cic_eth.sync.mined
+ :members:
+
+.. automodule:: cic_eth.sync.head
+ :members:
+
+.. automodule:: cic_eth.sync.history
+ :members:
+
diff --git a/apps/cic-eth/doc/sphinx/conf.py b/apps/cic-eth/doc/sphinx/conf.py
new file mode 100644
index 00000000..679d1d71
--- /dev/null
+++ b/apps/cic-eth/doc/sphinx/conf.py
@@ -0,0 +1,57 @@
+# Configuration file for the Sphinx documentation builder.
+#
+# This file only contains a selection of the most common options. For a full
+# list see the documentation:
+# https://www.sphinx-doc.org/en/master/usage/configuration.html
+
+# -- Path setup --------------------------------------------------------------
+
+# If extensions (or modules to document with autodoc) are in another directory,
+# add these directories to sys.path here. If the directory is relative to the
+# documentation root, use os.path.abspath to make it absolute, like shown here.
+#
+# import os
+# import sys
+# sys.path.insert(0, os.path.abspath('.'))
+
+
+# -- Project information -----------------------------------------------------
+
+project = 'cic-eth'
+copyright = '2020, Louis Holbrook'
+author = 'Louis Holbrook'
+
+
+# -- General configuration ---------------------------------------------------
+
+# Add any Sphinx extension module names here, as strings. They can be
+# extensions coming with Sphinx (named 'sphinx.ext.*') or your custom
+# ones.
+extensions = [
+ 'sphinx.ext.autodoc',
+ 'celery.contrib.sphinx',
+ 'sphinx.ext.todo',
+]
+
+# Add any paths that contain templates here, relative to this directory.
+templates_path = ['_templates']
+
+# List of patterns, relative to source directory, that match files and
+# directories to ignore when looking for source files.
+# This pattern also affects html_static_path and html_extra_path.
+exclude_patterns = ['_build', 'Thumbs.db', '.DS_Store']
+
+
+# -- Options for HTML output -------------------------------------------------
+
+# The theme to use for HTML and HTML Help pages. See the documentation for
+# a list of builtin themes.
+#
+html_theme = 'alabaster'
+
+# Add any paths that contain custom static files (such as style sheets) here,
+# relative to this directory. They are copied after the builtin static files,
+# so a file named "default.css" will overwrite the builtin "default.css".
+html_static_path = ['_static']
+
+todo_include_todos = True
diff --git a/apps/cic-eth/doc/sphinx/index.rst b/apps/cic-eth/doc/sphinx/index.rst
new file mode 100644
index 00000000..f22a8a22
--- /dev/null
+++ b/apps/cic-eth/doc/sphinx/index.rst
@@ -0,0 +1,19 @@
+.. cic-indexer documentation master file, created by
+ sphinx-quickstart on Sun Sep 20 13:49:02 2020.
+ You can adapt this file completely to your liking, but it should at least
+ contain the root `toctree` directive.
+
+Welcome to cic-eth's documentation!
+===================================
+
+.. toctree::
+ :maxdepth: 2
+ :caption: Contents:
+
+
+Indices and tables
+==================
+
+* :ref:`genindex`
+* :ref:`modindex`
+* :ref:`search`
diff --git a/apps/cic-eth/doc/texinfo/old.20210107/Makefile b/apps/cic-eth/doc/texinfo/old.20210107/Makefile
new file mode 100644
index 00000000..0944d469
--- /dev/null
+++ b/apps/cic-eth/doc/texinfo/old.20210107/Makefile
@@ -0,0 +1,5 @@
+all: html
+
+.PHONY: html
+html:
+ makeinfo --html --output html index.texi
diff --git a/apps/cic-eth/doc/texinfo/old.20210107/api.texi b/apps/cic-eth/doc/texinfo/old.20210107/api.texi
new file mode 100644
index 00000000..46f3096d
--- /dev/null
+++ b/apps/cic-eth/doc/texinfo/old.20210107/api.texi
@@ -0,0 +1,34 @@
+@node Python API
+@chapter Python API
+
+@section Installation
+
+A @code{setuptools} file is provided to install @code{cic-eth} as a normal python package.
+
+The API will send tasks to the celery and immediately return task @code{uuid}. If an HTTP callback is provided, the result of the operation will be sent to it as a @code{POST} request with @code{application/json} content-type, with the following payload as pseudo-schema:
+
+@verbatim
+{
+ 'root': ,
+ 'status': ,
+ 'message': ,
+ 'result':
+}
+@end verbatim
+
+@subsection API calls
+
+Please refer to inline code docstrings in @file{cic_eth/api.py} for details on API function signatures and behaviors.
+
+@itemize
+@item
+@code{create_account(...)} - Create a new account and add the private key to the keystore
+@item
+@code{balance(...)} - Query the token balance of an address
+@item
+@code{transfer(...)} - Transfer tokens between addresses
+@item
+@code{convert(...)} - Convert between tokens for same address
+@item
+@code{convert_transfer(...)} - Convert tokens and send destination token to a specified address
+@end itemize
diff --git a/apps/cic-eth/doc/texinfo/old.20210107/index.texi b/apps/cic-eth/doc/texinfo/old.20210107/index.texi
new file mode 100644
index 00000000..793ef244
--- /dev/null
+++ b/apps/cic-eth/doc/texinfo/old.20210107/index.texi
@@ -0,0 +1,28 @@
+\input texinfo
+@settitle Grassroots Economics CIC ETH 0.4.1
+
+@copying
+Released 2020 under GPL3
+@end copying
+
+@titlepage
+@title Community Inclusion Currency Network
+@author Louis Holbrook
+
+@end titlepage
+
+@c
+@contents
+
+@ifnottex
+@node Top
+@top Grassroots Economics CIC ETH
+
+This document describes microservices that send transactions to and process events from an EVM blockchain.
+@end ifnottex
+
+
+@include overview.texi
+@include setup.texi
+@include run.texi
+@include api.texi
diff --git a/apps/cic-eth/doc/texinfo/old.20210107/overview.texi b/apps/cic-eth/doc/texinfo/old.20210107/overview.texi
new file mode 100644
index 00000000..216ddba2
--- /dev/null
+++ b/apps/cic-eth/doc/texinfo/old.20210107/overview.texi
@@ -0,0 +1,42 @@
+@node Overview
+@chapter Overview
+This is the core component for the CIC token network system. It provides a task worker infrastructure to interact with the Ethereum blockchain, aswell as daemons to monitor transactions.
+
+@section Reading this document
+
+Any paths in this document are relative to the root of the cic-eth git repository.
+
+@section Contents
+
+@itemize @bullet
+@item Python API that dispatches celery tasks for high-level actions
+@item Daemon for monitoring the state of and retrying outgoing transactions
+@item Daemon for monitoring new transactions of interest confirmed onchain
+@end itemize
+
+@section Dependencies
+
+Python dependencies can be acquired by running the usual python setup and/or using the provided requiremens.txt file.
+
+The application has the following non-python dependencies:
+
+@itemize @bullet
+@item
+@strong{PostgreSQL}: Database backend.
+@item
+@strong{Redis}: Broker and results for Celery workers.
+@item
+@strong{Bancor contracts}: A clone of the Bancor contact repository
+@item
+@strong{Ethereum node}: A synced ethereum node with keystore
+@end itemize
+
+@section Caveats
+
+The application @emph{must not} use private keys for which transactions may be generated from other sources.
+
+It application retrieves the transaction nonce for every transaction directly from the network. Any transaction submitted to it are passed on to the network with sequential nonces. The caller code needs to keep this in mind when considering whether to allow the account holder to submit additional transaction tasks before the current has been completed.
+
+@section Known issues
+
+The author has not yet figured out how to get @code{pytest-celery} to work with queues. Currently the functional tests hang when trying to run them.
diff --git a/apps/cic-eth/doc/texinfo/old.20210107/queue.texi b/apps/cic-eth/doc/texinfo/old.20210107/queue.texi
new file mode 100644
index 00000000..e69de29b
diff --git a/apps/cic-eth/doc/texinfo/old.20210107/run.texi b/apps/cic-eth/doc/texinfo/old.20210107/run.texi
new file mode 100644
index 00000000..a7ee7d9c
--- /dev/null
+++ b/apps/cic-eth/doc/texinfo/old.20210107/run.texi
@@ -0,0 +1,34 @@
+@node Running the application
+@chapter Running the application
+
+@section Celery worker
+
+The helper script @file{scripts/cic-eth-tasker.py} will connect to redis and the ethereum node and spawn a worker for all celery tasks.
+
+@section Transaction controller
+
+The celery task chains the process outgoing transactions only send the transactions to the network, after which their responsibility ends. And further processing is handled by @file{scripts/cic-eth-manager.py}.
+
+@subsection Monitor transaction state
+
+Records of transactions are added to the database, and the daemon looks for confirmations in block for these transaction, updating their state accordingly. The resulting state may @emph{only} by either @strong{SUCCESS} or @strong{REVERT}. A transaction is any of these states is finalized and won't be retried.
+
+@subsection Perform transfer after convert
+
+Handles the compound workflow where sender with token @code{A} wishes to send tokens to recipient with token @code{B}.
+
+The task worker only submits the convert transaction, because the actual amount of received tokens is not known before the convert takes place. The full amount of recevied tokens will be transferred after the successful convert.
+
+Convert-then-transfer tasks are recorded separately, and if the controller receive a confirmed convert transaction that has a local record, it submits a new transfer task to the task workers.
+
+@subsection Retry after timeout
+
+@strong{Not yet implemented!}.
+
+If a transaction lingers too long without being confirmed, the controller will attempt to re-submit the task and all its dependent tasks with a higher gas price.
+
+
+@section Transaction monitor
+
+@file{scripts/cic-eth-track.py} looks for token transfer or convert transaction for all known tokens on the network, and stores them in a local database cache.
+
diff --git a/apps/cic-eth/doc/texinfo/old.20210107/setup.texi b/apps/cic-eth/doc/texinfo/old.20210107/setup.texi
new file mode 100644
index 00000000..49cafb9d
--- /dev/null
+++ b/apps/cic-eth/doc/texinfo/old.20210107/setup.texi
@@ -0,0 +1,98 @@
+@node Setup
+@chapter Setup
+
+@section Prerequisites
+
+@itemize
+@item A running ETH provider with:
+@itemize
+@item Deployed bancor contracts
+@item Sufficient balances for system accounts
+@end itemize
+@item A running ETH signer provider, that can handle the following 'web3' JSON-RPC calls:
+@itemize
+@item @command{personal_newAccount}
+@item @command{eth_signTransaction}
+@end itemize
+@end itemize
+
+@section Database migration
+
+Execute @code{alembic upgrade head} in @file{cic_eth/db/migrations} to generate the schema in the database.
+
+@section Configuration settings
+
+@file{cic-eth} uses configuration files in @code{'ini'} format. All names are translated to upper case letters, and all values are concatenated to sections with a @key{_}. Example:
+
+@verbatim
+[foo]
+bar_baz = 42
+@end verbatim
+
+The above entry becomes @code{FOO_BAR_BAZ} with value @code{42}
+
+@subsection Database
+@table @code
+@item DATABASE_NAME
+@item DATABASE_USER
+@item DATABASE_PASSWORD
+@item DATABASE_HOST
+@item DATABASE_PORT
+Postgres database settings
+@end table
+
+@subsection Redis
+
+@table @code
+@item REDIS_BROKER_URL
+Redis settings
+@end table
+
+@subsection SSL
+
+@table @code
+@item SSL_ENABLE_CLIENT
+Use SSL client certification for outgoing web requests (boolean)
+@item SSL_CERT_FILE
+Absolute path to client certificate file
+@item SSL_KEY_FILE
+Absolute path to client key file
+@item SSL_PASSWORD
+Password to unlock client key
+@item SSL_CA_FILE
+The client certificate's authority chain
+@end table
+
+@subsection Ethereum
+
+@table @code
+@item ETH_PROVIDER
+URL to JSON-RPC API provider
+@item ETH_GAS_PROVIDER_ADDRESS
+Address providing gas to fund transactions for accounts in keystore
+@end table
+
+@subsection Bancor
+
+@table @code
+@item BANCOR_REGISTRY_ADDRESS
+Contract address for the ContractRegistry contract
+@item BANCOR_DIR
+Absolute path to root of the Bancor Solidity contract GIT repository
+@end table
+
+@subsection Syncer
+
+@table @code
+@item SYNCER_LOOP_DELAY
+Delay in seconds to wait between polls when no data has been found
+@end table
+
+@subsection Signer
+
+@table @code
+@item SIGNER_SECRET (development only)
+Key used by keystore to encrypt secrets
+@item SIGNER_PASSWORD
+Password for additional private key encryption on keystore
+@end table
diff --git a/apps/cic-eth/doc/texinfo/old.20210107/transactions.texi b/apps/cic-eth/doc/texinfo/old.20210107/transactions.texi
new file mode 100644
index 00000000..b6e48aa3
--- /dev/null
+++ b/apps/cic-eth/doc/texinfo/old.20210107/transactions.texi
@@ -0,0 +1,26 @@
+@chapter Transactions
+
+@section States
+
+@subsection Send transaction to network
+
+@multitable @columnfractions .35 .15 .15 .35
+@headitem Item @tab Exception @tab Action
+
+@item Chain node unreachable
+@tab ChainUnavailableError
+@tab Retry: unlimited, backoff
+
+@item Cannot save tx state to database
+@tab DatabaseUnavailableError
+@tab Crash: Notify by email
+
+@item Signer unreachable
+@tab SignerUnavailableError
+@tab Retry: unlimited, backoff
+
+@item Unknown address
+@tab SignerAccountUnknownError
+@tab Fail
+
+
diff --git a/apps/cic-eth/doc/texinfo/overview.texi b/apps/cic-eth/doc/texinfo/overview.texi
new file mode 100644
index 00000000..46d36f0d
--- /dev/null
+++ b/apps/cic-eth/doc/texinfo/overview.texi
@@ -0,0 +1,24 @@
+@node cic-eth
+@chapter cic-eth
+
+@section Overview
+
+@code{cic-eth} is the heart of the custodial account component. It is a combination of python-celery task queues and daemons that sign, dispatch and monitor blockchain transactions, aswell as triggering tasks contingent on other transactions.
+
+@subsection Dependencies
+
+The @code{cic-registry} module is used as a cache for contracts and tokens on the network.
+
+A web3 JSON-RPC service that transparently proxies a keystore and provides transaction and message signing. The current development version uses the python web3 middleware feature to route methodsi involving the keystore to the module @code{crypto-dev-signer}, which is hosted on @file{pypi.org}.
+
+@subsection What does it do
+
+
+
+@subsection Tasks
+
+Two main categories exist for tasks, @code{eth} and @code{queue}.
+
+The @code{eth} tasks provide means to construct and decode Ethereum transactions, as well as interfacing the underlying key store.
+
+Tasks in the @code{queue} module operate on the state of transactions queued for processing by @code{cic-eth}.
diff --git a/apps/cic-eth/docker/Dockerfile b/apps/cic-eth/docker/Dockerfile
new file mode 100644
index 00000000..88dfea8c
--- /dev/null
+++ b/apps/cic-eth/docker/Dockerfile
@@ -0,0 +1,43 @@
+# FROM grassrootseconomics:cic
+
+#FROM python:3.8.6-alpine
+FROM python:3.8.6-slim-buster
+
+#COPY --from=0 /usr/local/share/cic/solidity/ /usr/local/share/cic/solidity/
+
+WORKDIR /usr/src/cic-eth
+
+ARG pip_extra_index_url_flag='--index https://pypi.org/simple --extra-index-url https://pip.grassrootseconomics.net:8433'
+ARG root_requirement_file='requirements.txt'
+
+#RUN apk update && \
+# apk add gcc musl-dev gnupg libpq
+#RUN apk add postgresql-dev
+#RUN apk add linux-headers
+#RUN apk add libffi-dev
+RUN apt-get update && \
+ apt install -y gcc gnupg libpq-dev wget make g++ gnupg bash procps
+
+# Copy shared requirements from top of mono-repo
+RUN echo "copying root req file ${root_requirement_file}"
+COPY $root_requirement_file .
+RUN pip install -r $root_requirement_file $pip_extra_index_url_flag
+
+COPY cic-eth/scripts/ scripts/
+COPY cic-eth/setup.cfg cic-eth/setup.py ./
+COPY cic-eth/cic_eth/ cic_eth/
+# Copy app specific requirements
+COPY cic-eth/requirements.txt .
+COPY cic-eth/test_requirements.txt .
+RUN pip install $pip_extra_index_url_flag .
+
+COPY cic-eth/docker/* ./
+RUN chmod 755 *.sh
+COPY cic-eth/tests/ tests/
+
+# # ini files in config directory defines the configurable parameters for the application
+# # they can all be overridden by environment variables
+# # to generate a list of environment variables from configuration, use: confini-dump -z (executable provided by confini package)
+COPY cic-eth/config/ /usr/local/etc/cic-eth/
+COPY cic-eth/cic_eth/db/migrations/ /usr/local/share/cic-eth/alembic/
+COPY cic-eth/crypto_dev_signer_config/ /usr/local/etc/crypto-dev-signer/
diff --git a/apps/cic-eth/docker/db.sh b/apps/cic-eth/docker/db.sh
new file mode 100644
index 00000000..bc239cf6
--- /dev/null
+++ b/apps/cic-eth/docker/db.sh
@@ -0,0 +1,4 @@
+#!/bin/bash
+
+migrate.py -c /usr/local/etc/cic-eth --migrations-dir /usr/local/share/cic-eth/alembic -vv
+
diff --git a/apps/cic-eth/docker/start_dispatcher.sh b/apps/cic-eth/docker/start_dispatcher.sh
new file mode 100644
index 00000000..86ac06f7
--- /dev/null
+++ b/apps/cic-eth/docker/start_dispatcher.sh
@@ -0,0 +1,5 @@
+#!/bin/bash
+
+. ./db.sh
+
+/usr/local/bin/cic-eth-dispatcher $@
diff --git a/apps/cic-eth/docker/start_manager.sh b/apps/cic-eth/docker/start_manager.sh
new file mode 100644
index 00000000..383e888d
--- /dev/null
+++ b/apps/cic-eth/docker/start_manager.sh
@@ -0,0 +1,5 @@
+#!/bin/bash
+
+. ./db.sh
+
+/usr/local/bin/cic-eth-manager $@
diff --git a/apps/cic-eth/docker/start_retry.sh b/apps/cic-eth/docker/start_retry.sh
new file mode 100644
index 00000000..721d5bcf
--- /dev/null
+++ b/apps/cic-eth/docker/start_retry.sh
@@ -0,0 +1,5 @@
+#!/bin/bash
+
+. ./db.sh
+
+/usr/local/bin/cic-eth-retrier $@
diff --git a/apps/cic-eth/docker/start_tasker.sh b/apps/cic-eth/docker/start_tasker.sh
new file mode 100644
index 00000000..0dc729ac
--- /dev/null
+++ b/apps/cic-eth/docker/start_tasker.sh
@@ -0,0 +1,29 @@
+#!/bin/bash
+
+. ./db.sh
+
+# set CONFINI_ENV_PREFIX to override the env prefix to override env vars
+
+echo "!!! starting signer"
+python /usr/local/bin/crypto-dev-daemon -vv -c /usr/local/etc/crypto-dev-signer &
+
+echo "!!! starting tracker"
+/usr/local/bin/cic-eth-tasker $@
+
+# thanks! https://docs.docker.com/config/containers/multi-service_container/
+sleep 1;
+echo "!!! entering monitor loop"
+while true; do
+ ps aux | grep crypto-dev-daemon | grep -q -v grep
+ PROCESS_1_STATUS=$?
+ ps aux | grep cic-eth-tasker |grep -q -v grep
+ PROCESS_2_STATUS=$?
+ # If the greps above find anything, they exit with 0 status
+ # If they are not both 0, then something is wrong
+ if [ $PROCESS_1_STATUS -ne 0 -o $PROCESS_2_STATUS -ne 0 ]; then
+ echo "One of the processes has already exited."
+ exit 1
+ fi
+ sleep 15;
+done
+
diff --git a/apps/cic-eth/examples/api_callback.py b/apps/cic-eth/examples/api_callback.py
new file mode 100644
index 00000000..20eaa469
--- /dev/null
+++ b/apps/cic-eth/examples/api_callback.py
@@ -0,0 +1,76 @@
+# standard imports
+import logging
+import uuid
+import socket
+
+# third-party imports
+import celery
+import redis
+
+# local imports
+import cic_eth
+
+logging.basicConfig(level=logging.DEBUG)
+logg = logging.getLogger()
+
+celery_app = celery.Celery(broker='redis://')
+
+uu = uuid.uuid4()
+
+r = redis.Redis()
+r_key = '{}-results'.format(uu)
+
+c = 3
+results = []
+for i in range(c):
+ x = uuid.uuid4()
+ results.append(str(x))
+
+
+@celery_app.task(queue=str(uu), names='customcustom')
+def custom_callback(result_from_chain, static_param_from_api, status_code_from_chain=0, message_from_chain={}):
+ global c
+
+ r.rpush(r_key, result_from_chain)
+ l = r.llen(r_key)
+ logg.debug('i {} l {} result {} url {} statuscode {} message {}'.format(
+ i,
+ l,
+ result_from_chain,
+ static_param_from_api,
+ status_code_from_chain,
+ message_from_chain,
+ )
+ )
+ if l == c:
+ r.delete(r_key)
+ celery_app.control.broadcast('shutdown', destination=['{}@{}'.format(uu, socket.gethostname())])
+
+
+@celery_app.task(queue=str(uu), name='dodorunrunrun')
+def custom_run(results):
+ for z in results:
+ logg.debug('sending {}'.format(z))
+ a = cic_eth.Api(callback_param=uu, callback_task=custom_callback)
+ a.ping(z)
+
+
+if __name__ == '__main__':
+ r.delete(r_key)
+ s = celery.signature(
+ 'dodorunrunrun',
+ [results],
+ queue=str(uu),
+ )
+ s.apply_async()
+
+ worker = celery_app.worker_main(
+ [
+ 'api_callback',
+ '--loglevel=DEBUG',
+ '-n',
+ '{}@%h'.format(uu),
+ '-Q',
+ str(uu),
+ ],
+ )
diff --git a/apps/cic-eth/requirements.txt b/apps/cic-eth/requirements.txt
new file mode 100644
index 00000000..15c397bf
--- /dev/null
+++ b/apps/cic-eth/requirements.txt
@@ -0,0 +1,18 @@
+web3==5.12.2
+celery==4.4.7
+crypto-dev-signer~=0.4.13b13
+confini~=0.3.6b1
+cic-registry~=0.5.3a10
+cic-bancor~=0.0.6
+redis==3.5.3
+alembic==1.4.2
+websockets==8.1
+requests~=2.24.0
+eth_accounts_index~=0.0.10a5
+erc20-approval-escrow~=0.3.0a3
+erc20-single-shot-faucet~=0.2.0a4
+rlp==2.0.1
+uWSGI==2.0.19.1
+semver==2.13.0
+eth-gas-proxy==0.0.1a4
+websocket-client==0.57.0
diff --git a/apps/cic-eth/scripts/generator.py b/apps/cic-eth/scripts/generator.py
new file mode 100644
index 00000000..4e939663
--- /dev/null
+++ b/apps/cic-eth/scripts/generator.py
@@ -0,0 +1,181 @@
+import os
+import logging
+import random
+import alembic
+import argparse
+import datetime
+import hashlib
+import math
+
+import confini
+
+from cic_eth.db import SessionBase
+from cic_eth.db import dsn_from_config
+from cic_eth.db.enum import StatusEnum
+from cic_eth.db.models.tx import Tx
+from cic_eth.db.models.tx import TxCache
+from cic_eth.db.models.otx import Otx
+from cic_eth.db.models.otx import Otx
+
+
+# connect to database
+dsn = dsn_from_config(config)
+SessionBase.connect(dsn)
+
+pending_states = [
+ StatusEnum.PENDING,
+ StatusEnum.SENDFAIL,
+ StatusEnum.WAITFORGAS,
+ ]
+
+synced_states = [
+ StatusEnum.SENT,
+ StatusEnum.CANCELLED,
+ ]
+
+failed_states = [
+ StatusEnum.REJECTED,
+ StatusEnum.FUBAR,
+ ]
+
+mined_states = [
+ StatusEnum.REVERTED,
+ StatusEnum.SUCCESS,
+ ]
+
+all_states = pending_states + synced_states + failed_states + mined_states
+
+
+class MalarkeyCommitter():
+ """Adds entries to the cic-eth transaction cache backend.
+
+ All values generated by this class are deterministic but completely arbitrary.
+
+ :param generator: Generator instance used to generate the transactions
+ :type generator: Generator
+ :param block_change_factor: Probabiliy of advancing to next block per entry (Optional; default: 0.6)
+ :type block_change_factor: float
+ :param tx_index_max: Maximum transaction index number to generate (Optional; default: 200)
+ :type ix_index_max: int
+ :param block_time_seconds: Seconds to advance block timestamp datetime on block advance
+ :type block_time_seconds: int
+ """
+ def __init__(self, generator, block_change_factor=0.6, tx_index_max=200, block_time_seconds=15):
+ self.g = generator
+ self.s = SessionBase.create_session()
+ self.datetime = datetime.datetime.utcnow()
+ self.block = 0
+ self.tx = 0
+ self.block_change_factor = block_change_factor
+ self.tx_index_max = tx_index_max
+ self.block_time_seconds = block_time_seconds
+
+
+ def advance(self):
+ """Randomly advances block number and transaction index.
+ """
+ if random.random() < self.block_change_factor:
+ self.block_advance()
+ tx_advance = random.randint(0, self.tx_index_max - self.tx)
+ self.tx_advance(tx_advance)
+
+
+ def tx_advance(self, n=1):
+ """Advance tx index number.
+
+ :param n: Will be added to tx index (Optional; default: 1)
+ :type n: int
+ """
+ self.tx += n
+
+
+ def block_advance(self, n=1):
+ """Advance block number.
+
+ :param n: Will be added to tx index (Optional; default: 1)
+ :type n: int
+ """
+ self.block += n
+ self.datetime += datetime.timedelta(seconds=self.block_time_seconds)
+ self.tx = 0
+
+
+ def stamp(self, entry):
+ """Calls the random advance method, and sets the corresponding block, tx index and dates on the entry.
+ """
+ self.advance()
+ entry.mine(self.block, self.tx, self.datetime)
+
+
+ def commit_func(self, entry):
+ """Implements interface needed for GeneratorSession.commit_func, storing a given entry.
+
+ Generates random block and tx index for entry, advancing date correspondingly.
+
+ Also generates random transaction queue states for the entries:
+
+ - For any entry with foreign origin, queue state will always be in the set of "mined" states if applicable.
+ - For any entry with local origin and "mined" queue state, an incoming transaction record will be added.
+
+ :param entry: Entry to commit
+ :type entry: GeneratorEntry
+ """
+ self.stamp(entry)
+ nonce = self.g.get_nonce(entry.sender)
+ tx_hash = '0x{:064x}'.format(random.getrandbits(256))
+ signed_tx_bytes = b''
+ h = hashlib.sha256()
+ for i in range(4):
+ h.update(tx_hash.encode('utf-8'))
+ signed_tx_bytes += h.digest()
+ signed_tx = '0x' + signed_tx_bytes.hex()
+
+ state = None
+ if entry.sender in self.g.addresses['foreign']:
+ state = random.choice(mined_states)
+ else:
+ state = random.choice(all_states)
+
+ otx = None
+ tx = None
+
+ if entry.sender in self.g.addresses['local']:
+ otx = Otx(
+ nonce,
+ entry.sender,
+ tx_hash,
+ signed_tx,
+ )
+ otx.status = state
+ self.s.add(otx)
+ self.s.flush()
+
+ if state in mined_states:
+ tx = Tx(
+ tx_hash,
+ state == StatusEnum.SUCCESS,
+ )
+ self.s.add(tx)
+ self.s.flush()
+
+ self.s.commit()
+
+ txc = TxCache(
+ tx_hash,
+ entry.sender,
+ entry.recipient,
+ entry.source_token,
+ entry.destination_token,
+ entry.from_value,
+ entry.to_value,
+ entry.block,
+ entry.tx,
+ entry.sender in self.g.addresses['local'],
+ )
+ txc.date_registered = entry.datetime
+ self.s.add(txc)
+ self.s.commit()
+
+ logg.info('committed {}'.format(entry))
+
+
diff --git a/apps/cic-eth/scripts/insert_tx.py b/apps/cic-eth/scripts/insert_tx.py
new file mode 100644
index 00000000..1a9727b7
--- /dev/null
+++ b/apps/cic-eth/scripts/insert_tx.py
@@ -0,0 +1,57 @@
+# standard imports
+import os
+import sys
+import logging
+import time
+import argparse
+
+# third-party imports
+import confini
+import celery
+
+# local imports
+import cic_eth
+from cic_eth import db
+from cic_eth import eth
+from cic_eth.eth.token import transfer
+
+logging.basicConfig(level=logging.WARNING)
+logg = logging.getLogger()
+
+app = celery.Celery(backend='redis://', broker='redis://')
+
+if __name__ == '__main__':
+
+ config_dir = os.path.join('/etc/cic-eth/watcher')
+
+ argparser = argparse.ArgumentParser(description='daemon that monitors transactions in new blocks')
+ argparser.add_argument('-c', type=str, default=config_dir, help='config root to use')
+ argparser.add_argument('-v', help='be verbose', action='store_true')
+ argparser.add_argument('-vv', help='be more verbose', action='store_true')
+ args = argparser.parse_args(sys.argv[1:])
+
+ config_dir = os.path.join(args.c)
+ os.makedirs(config_dir, 0o777, True)
+
+ if args.v == True:
+ logging.getLogger().setLevel(logging.INFO)
+ elif args.vv == True:
+ logging.getLogger().setLevel(logging.DEBUG)
+
+ config = confini.Config(config_dir)
+ config.process()
+ logg.debug('config loaded from {}'.format(config_dir))
+
+ token_address = '0x528c3E8B3e6dC646530440D88F83da0e45DaC25b'
+ #sender = '0xa2e85B7F1d61522A88f446C52D09F724C807d7ad'
+ sender = '0xc14958CD9A605AB0d9A36850362AaD2b9D42DF97'
+ recipient = '0xe3C4db5947409Aff0FF8D643047EA41515cA4B8e'
+
+ transfer.delay(
+ [{
+ 'address': token_address
+ }],
+ sender,
+ recipient,
+ 1000000000000000000000,
+ )
diff --git a/apps/cic-eth/scripts/migrate.py b/apps/cic-eth/scripts/migrate.py
new file mode 100644
index 00000000..4a2c0139
--- /dev/null
+++ b/apps/cic-eth/scripts/migrate.py
@@ -0,0 +1,56 @@
+#!/usr/bin/python
+import os
+import argparse
+import logging
+
+import alembic
+from alembic.config import Config as AlembicConfig
+import confini
+
+from cic_eth.db import dsn_from_config
+
+logging.basicConfig(level=logging.WARNING)
+logg = logging.getLogger()
+
+# BUG: the dbdir doesn't work after script install
+rootdir = os.path.dirname(os.path.dirname(os.path.realpath(__file__)))
+dbdir = os.path.join(rootdir, 'cic_eth', 'db')
+migrationsdir = os.path.join(dbdir, 'migrations')
+
+config_dir = os.path.join('/usr/local/etc/cic-eth')
+
+argparser = argparse.ArgumentParser()
+argparser.add_argument('-c', type=str, default=config_dir, help='config file')
+argparser.add_argument('--env-prefix', default=os.environ.get('CONFINI_ENV_PREFIX'), dest='env_prefix', type=str, help='environment prefix for variables to overwrite configuration')
+argparser.add_argument('--migrations-dir', dest='migrations_dir', default=migrationsdir, type=str, help='path to alembic migrations directory')
+argparser.add_argument('-v', action='store_true', help='be verbose')
+argparser.add_argument('-vv', action='store_true', help='be more verbose')
+args = argparser.parse_args()
+
+if args.vv:
+ logging.getLogger().setLevel(logging.DEBUG)
+elif args.v:
+ logging.getLogger().setLevel(logging.INFO)
+
+config = confini.Config(args.c, args.env_prefix)
+config.process()
+config.censor('PASSWORD', 'DATABASE')
+config.censor('PASSWORD', 'SSL')
+logg.debug('config:\n{}'.format(config))
+
+migrations_dir = os.path.join(args.migrations_dir, config.get('DATABASE_ENGINE'))
+if not os.path.isdir(migrations_dir):
+ logg.debug('migrations dir for engine {} not found, reverting to default'.format(config.get('DATABASE_ENGINE')))
+ migrations_dir = os.path.join(args.migrations_dir, 'default')
+
+# connect to database
+dsn = dsn_from_config(config)
+
+
+logg.info('using migrations dir {}'.format(migrations_dir))
+logg.info('using db {}'.format(dsn))
+ac = AlembicConfig(os.path.join(migrations_dir, 'alembic.ini'))
+ac.set_main_option('sqlalchemy.url', dsn)
+ac.set_main_option('script_location', migrations_dir)
+
+alembic.command.upgrade(ac, 'head')
diff --git a/apps/cic-eth/setup.cfg b/apps/cic-eth/setup.cfg
new file mode 100644
index 00000000..5d5a5c4a
--- /dev/null
+++ b/apps/cic-eth/setup.cfg
@@ -0,0 +1,49 @@
+[metadata]
+name = cic-eth
+version = attr: cic_eth.version.__version_string__
+description = CIC Network Ethereum interaction
+author = Louis Holbrook
+author_email = dev@holbrook.no
+url = https://gitlab.com/grassrootseconomics/cic-eth
+keywords =
+ cic
+ cryptocurrency
+ ethereum
+classifiers =
+ Programming Language :: Python :: 3
+ Operating System :: OS Independent
+ Development Status :: 3 - Alpha
+ Environment :: No Input/Output (Daemon)
+ Intended Audience :: Developers
+ License :: OSI Approved :: GNU General Public License v3 or later (GPLv3+)
+ Topic :: Internet
+# Topic :: Blockchain :: EVM
+license = GPL3
+licence_files =
+ LICENSE.txt
+
+[options]
+python_requires = >= 3.6
+packages =
+ cic_eth
+ cic_eth.admin
+ cic_eth.eth
+ cic_eth.api
+ cic_eth.db
+ cic_eth.db.models
+ cic_eth.queue
+ cic_eth.sync
+ cic_eth.runnable
+ cic_eth.callbacks
+scripts =
+ ./scripts/migrate.py
+
+[options.entry_points]
+console_scripts =
+ cic-eth-tasker = cic_eth.runnable.tasker:main
+ cic-eth-manager = cic_eth.runnable.manager:main
+ cic-eth-tag = cic_eth.runnable.tag:main
+ cic-eth-dispatcher = cic_eth.runnable.dispatcher:main
+ cic-eth-retrier = cic_eth.runnable.retry:main
+ cic-eth-inspect = cic_eth.runnable.view:main
+ cic-eth-ctl = cic_eth.runnable.ctrl:main
diff --git a/apps/cic-eth/setup.py b/apps/cic-eth/setup.py
new file mode 100644
index 00000000..624baab4
--- /dev/null
+++ b/apps/cic-eth/setup.py
@@ -0,0 +1,27 @@
+from setuptools import setup
+import configparser
+import os
+
+requirements = []
+f = open('requirements.txt', 'r')
+while True:
+ l = f.readline()
+ if l == '':
+ break
+ requirements.append(l.rstrip())
+f.close()
+
+test_requirements = []
+f = open('test_requirements.txt', 'r')
+while True:
+ l = f.readline()
+ if l == '':
+ break
+ test_requirements.append(l.rstrip())
+f.close()
+
+
+setup(
+ install_requires=requirements,
+ tests_require=test_requirements,
+ )
diff --git a/apps/cic-eth/test_requirements.txt b/apps/cic-eth/test_requirements.txt
new file mode 100644
index 00000000..d168bb66
--- /dev/null
+++ b/apps/cic-eth/test_requirements.txt
@@ -0,0 +1,7 @@
+pytest==6.0.1
+pytest-celery==0.0.0a1
+pytest-mock==3.3.1
+py-eth==0.1.1
+pytest-cov==2.10.1
+eth-tester==0.5.0b3
+py-evm==0.3.0a20
diff --git a/apps/cic-eth/tests/conftest.py b/apps/cic-eth/tests/conftest.py
new file mode 100644
index 00000000..aa6df8ba
--- /dev/null
+++ b/apps/cic-eth/tests/conftest.py
@@ -0,0 +1,47 @@
+# standard imports
+import os
+import logging
+import sys
+
+# third-party imports
+import pytest
+from cic_registry import CICRegistry
+
+script_dir = os.path.dirname(os.path.realpath(__file__))
+root_dir = os.path.dirname(script_dir)
+sys.path.insert(0, root_dir)
+data_dir = os.path.join(script_dir, 'testdata', 'abi')
+CICRegistry.add_path(data_dir)
+
+# fixtures
+from tests.fixtures_registry import *
+from cic_registry.pytest import *
+from cic_bancor.pytest import *
+from tests.fixtures_config import *
+from tests.fixtures_celery import *
+from tests.fixtures_web3 import *
+from tests.fixtures_database import *
+from tests.fixtures_faucet import *
+from tests.fixtures_transferapproval import *
+from tests.fixtures_account import *
+
+logg = logging.getLogger()
+
+
+@pytest.fixture(scope='session')
+def init_registry(
+ init_w3_conn,
+ ):
+ return CICRegistry
+
+
+@pytest.fixture(scope='function')
+def eth_empty_accounts(
+ init_wallet_extension,
+ ):
+ a = []
+ for i in range(10):
+ address = init_wallet_extension.new_account()
+ a.append(address)
+ logg.info('added address {}'.format(a))
+ return a
diff --git a/apps/cic-eth/tests/fixtures_account.py b/apps/cic-eth/tests/fixtures_account.py
new file mode 100644
index 00000000..9fbe7899
--- /dev/null
+++ b/apps/cic-eth/tests/fixtures_account.py
@@ -0,0 +1,30 @@
+# standard imports
+import logging
+
+# third-party imports
+import pytest
+from eth_accounts_index import AccountRegistry
+from cic_registry import CICRegistry
+
+logg = logging.getLogger(__name__)
+
+
+@pytest.fixture(scope='session')
+def accounts_registry(
+ default_chain_spec,
+ cic_registry,
+ w3,
+ ):
+ abi = AccountRegistry.abi()
+ constructor = w3.eth.contract(abi=abi, bytecode=AccountRegistry.bytecode())
+ tx_hash = constructor.constructor().transact()
+ r = w3.eth.getTransactionReceipt(tx_hash)
+ logg.debug('accounts registry deployed {}'.format(r.contractAddress))
+ account_registry = AccountRegistry(w3, r.contractAddress)
+
+ c = w3.eth.contract(abi=abi, address=r.contractAddress)
+ c.functions.addWriter(w3.eth.accounts[0]).transact()
+
+ CICRegistry.add_contract(default_chain_spec, c, 'AccountRegistry')
+
+ return account_registry
diff --git a/apps/cic-eth/tests/fixtures_bancor.py b/apps/cic-eth/tests/fixtures_bancor.py
new file mode 100644
index 00000000..9d973a31
--- /dev/null
+++ b/apps/cic-eth/tests/fixtures_bancor.py
@@ -0,0 +1,234 @@
+# standard imports
+import os
+import logging
+import json
+
+# third-party imports
+import pytest
+from cic_registry.bancor import contract_ids
+from cic_registry import bancor
+
+# local imports
+from cic_eth.eth import rpc
+
+script_dir = os.path.dirname(os.path.realpath(__file__))
+root_dir = os.path.dirname(script_dir)
+
+logg = logging.getLogger(__file__)
+
+
+class BancorContractLoader:
+
+ bancor_path = os.path.join(root_dir, 'bancor')
+ registry_contract = None
+
+ @staticmethod
+ def build_path():
+ return BancorContractLoader.bancor_path
+# return os.path.join(BancorContractLoader.bancor_path, 'solidity', 'build', 'contracts')
+
+
+ @staticmethod
+ def contract(w3, bundle_id, registry_id=None):
+ if registry_id == None:
+ registry_id = bundle_id
+ contract_id_hex = w3.toHex(text=registry_id)
+ contract_address = BancorContractLoader.registry_contract.functions.addressOf(contract_id_hex).call()
+ contract_build_file = os.path.join(
+ BancorContractLoader.build_path(),
+ '{}.json'.format(bundle_id),
+ )
+ f = open(os.path.join(contract_build_file))
+ j = json.load(f)
+ f.close()
+ contract_abi = j['abi']
+ logg.debug('creating contract interface {} ({}) at address {}'.format(registry_id, bundle_id, contract_address))
+ contract = w3.eth.contract(abi=contract_abi, address=contract_address)
+ return contract
+
+
+
+# TODO: DRY
+@pytest.fixture(scope='session')
+def bancor_deploy(
+ load_config,
+ init_w3_conn,
+ ):
+ bancor_dir_default = os.path.join(root_dir, 'bancor')
+ logg.debug('bancor deploy "{}"'.format(bancor_dir_default))
+ BancorContractLoader.bancor_path = load_config.get('BANCOR_DIR', bancor_dir_default)
+ bancor_build_dir = BancorContractLoader.build_path()
+
+ # deploy registry
+ registry_build_file = os.path.join(bancor_build_dir, 'ContractRegistry.json')
+ f = open(os.path.join(registry_build_file))
+ j = json.load(f)
+ f.close()
+ registry_constructor = init_w3_conn.eth.contract(abi=j['abi'], bytecode=j['bytecode'])
+ tx = registry_constructor.constructor().transact()
+ rcpt = init_w3_conn.eth.getTransactionReceipt(tx)
+ registry_address = rcpt['contractAddress']
+ registry_contract = init_w3_conn.eth.contract(abi=j['abi'], address=registry_address)
+ BancorContractLoader.registry_contract = registry_contract
+
+ # deply reserve token
+ reservetoken_build_file = os.path.join(bancor_build_dir, 'EtherToken.json')
+ f = open(os.path.join(reservetoken_build_file))
+ j = json.load(f)
+ f.close()
+ reservetoken_constructor = init_w3_conn.eth.contract(abi=j['abi'], bytecode=j['bytecode'])
+ tx = reservetoken_constructor.constructor('Reserve', 'RSV').transact()
+ rcpt = init_w3_conn.eth.getTransactionReceipt(tx)
+ reservetoken_address = rcpt['contractAddress']
+ reservetoken_contract = init_w3_conn.eth.contract(abi=j['abi'], address=reservetoken_address)
+
+ # register reserve token as bancor hub token
+ key_hex = init_w3_conn.toHex(text='BNTToken')
+ registry_contract.functions.registerAddress(key_hex, reservetoken_address).transact()
+
+ # deposit balances for minting liquid tokens with reserve
+ init_w3_conn.eth.sendTransaction({
+ 'from': init_w3_conn.eth.accounts[1],
+ 'to': reservetoken_address,
+ 'value': init_w3_conn.toWei('101', 'ether'),
+ 'nonce': 0,
+ })
+ init_w3_conn.eth.sendTransaction({
+ 'from': init_w3_conn.eth.accounts[2],
+ 'to': reservetoken_address,
+ 'value': init_w3_conn.toWei('101', 'ether'),
+ 'nonce': 0,
+ })
+
+ # deploy converter factory contract for creating liquid token exchanges
+ build_file = os.path.join(bancor_build_dir, 'LiquidTokenConverterFactory.json')
+ f = open(build_file)
+ j = json.load(f)
+ f.close()
+ converterfactory_constructor = init_w3_conn.eth.contract(abi=j['abi'], bytecode=j['bytecode'])
+ tx = converterfactory_constructor.constructor().transact()
+ rcpt = init_w3_conn.eth.getTransactionReceipt(tx)
+ converter_factory_address = rcpt['contractAddress']
+
+ # deploy the remaining contracts managed by the registry
+ for k in contract_ids.keys():
+ build_file = os.path.join(bancor_build_dir, '{}.json'.format(k))
+ f = open(build_file)
+ j = json.load(f)
+ f.close()
+ contract_constructor = init_w3_conn.eth.contract(abi=j['abi'], bytecode=j['bytecode'])
+ tx = None
+
+ # include the registry address as constructor parameters for the contracts that require it
+ if k in ['ConverterRegistry', 'ConverterRegistryData', 'BancorNetwork', 'ConversionPathFinder']:
+ tx = contract_constructor.constructor(registry_address).transact()
+ else:
+ tx = contract_constructor.constructor().transact()
+ rcpt = init_w3_conn.eth.getTransactionReceipt(tx)
+ contract_address = rcpt['contractAddress']
+
+ # register contract in registry
+ key_hex = init_w3_conn.toHex(text=contract_ids[k])
+ registry_contract.functions.registerAddress(key_hex, contract_address).transact()
+ contract = init_w3_conn.eth.contract(abi=j['abi'], address=contract_address)
+
+ # bancor formula needs to be initialized before use
+ if k == 'BancorFormula':
+ logg.debug('init bancor formula {}'.format(contract_address))
+ contract.functions.init().transact()
+
+ # converter factory needs liquid token converter factory to be able to issue our liquid tokens
+ if k == 'ConverterFactory':
+ logg.debug('register converter factory {}'.format(converter_factory_address))
+ contract.functions.registerTypedConverterFactory(converter_factory_address).transact()
+
+ logg.info('deployed registry at address {}'.format(registry_address))
+ return registry_contract
+
+
+
+def __create_converter(w3, converterregistry_contract, reserve_address, owner_address, token_name, token_symbol):
+ converterregistry_contract.functions.newConverter(
+ 0,
+ token_name,
+ token_symbol,
+ 18,
+ 100000,
+ [reserve_address],
+ [250000],
+ ).transact({
+ 'from': owner_address,
+ })
+
+
+@pytest.fixture(scope='session')
+def tokens_to_deploy(
+ ):
+ return [
+ (1, 'Bert Token', 'BRT'), # account_index, token name, token symbol
+ (2, 'Ernie Token', 'RNI'),
+ ]
+
+
+@pytest.fixture(scope='session')
+def bancor_tokens(
+ init_w3_conn,
+ bancor_deploy,
+ tokens_to_deploy,
+ ):
+
+ registry_contract = bancor_deploy
+
+ reserve_contract = BancorContractLoader.contract(init_w3_conn, 'ERC20Token', 'BNTToken')
+ reserve_address = reserve_contract.address
+
+ network_id = init_w3_conn.toHex(text='BancorNetwork')
+ network_address = registry_contract.functions.addressOf(network_id).call()
+
+ converterregistry_contract = BancorContractLoader.contract(init_w3_conn, 'ConverterRegistry', 'BancorConverterRegistry')
+
+ for p in tokens_to_deploy:
+ __create_converter(init_w3_conn, converterregistry_contract, reserve_address, init_w3_conn.eth.accounts[p[0]], p[1], p[2])
+
+ tokens = converterregistry_contract.functions.getAnchors().call()
+
+ network_contract = BancorContractLoader.contract(init_w3_conn, 'BancorNetwork')
+
+ mint_amount = init_w3_conn.toWei('100', 'ether')
+ i = 0
+ for token in tokens:
+ i += 1
+ owner = init_w3_conn.eth.accounts[i]
+ logg.debug('owner {} is {}'.format(owner, token))
+ reserve_contract.functions.approve(network_address, 0).transact({
+ 'from': owner
+ })
+ reserve_contract.functions.approve(network_address, mint_amount).transact({
+ 'from': owner
+ })
+ logg.debug('convert {} {} {} {}'.format(reserve_address, token, mint_amount, owner))
+ network_contract.functions.convert([
+ reserve_address,
+ token,
+ token,
+ ],
+ mint_amount,
+ mint_amount,
+ ).transact({
+ 'from': owner,
+ })
+
+ return tokens
+
+
+@pytest.fixture(scope='session')
+def bancor_load(
+ load_config,
+ init_w3_conn,
+ bancor_deploy,
+ bancor_tokens,
+ ):
+ registry_address = bancor_deploy.address
+ bancor_dir_default = os.path.join(root_dir, 'bancor')
+ bancor_dir = load_config.get('BANCOR_DIR', bancor_dir_default)
+ bancor.load(init_w3_conn, registry_address, bancor_dir)
diff --git a/apps/cic-eth/tests/fixtures_celery.py b/apps/cic-eth/tests/fixtures_celery.py
new file mode 100644
index 00000000..a57c6b94
--- /dev/null
+++ b/apps/cic-eth/tests/fixtures_celery.py
@@ -0,0 +1,57 @@
+# third-party imports
+import pytest
+import tempfile
+import logging
+import shutil
+
+logg = logging.getLogger(__name__)
+
+
+# celery fixtures
+@pytest.fixture(scope='session')
+def celery_includes():
+ return [
+ 'cic_eth.eth.bancor',
+ 'cic_eth.eth.token',
+ 'cic_eth.eth.request',
+ 'cic_eth.eth.tx',
+ 'cic_eth.queue.tx',
+ 'cic_eth.admin.ctrl',
+ 'cic_eth.admin.nonce',
+ 'cic_eth.eth.account',
+ 'cic_eth.callbacks.noop',
+ 'cic_eth.callbacks.http',
+ ]
+
+
+@pytest.fixture(scope='session')
+def celery_config():
+ bq = tempfile.mkdtemp()
+ bp = tempfile.mkdtemp()
+ rq = tempfile.mkdtemp()
+ logg.debug('celery broker queue {} processed {}'.format(bq, bp))
+ logg.debug('celery backend store {}'.format(rq))
+ yield {
+ 'broker_url': 'filesystem://',
+ 'broker_transport_options': {
+ 'data_folder_in': bq,
+ 'data_folder_out': bq,
+ 'data_folder_processed': bp,
+ },
+ 'result_backend': 'file://{}'.format(rq),
+ }
+ logg.debug('cleaning up celery filesystem backend files {} {} {}'.format(bq, bp, rq))
+ shutil.rmtree(bq)
+ shutil.rmtree(bp)
+ shutil.rmtree(rq)
+
+
+@pytest.fixture(scope='session')
+def celery_worker_parameters():
+ return {
+# 'queues': ('cic-eth'),
+ }
+
+@pytest.fixture(scope='session')
+def celery_enable_logging():
+ return True
diff --git a/apps/cic-eth/tests/fixtures_config.py b/apps/cic-eth/tests/fixtures_config.py
new file mode 100644
index 00000000..135df0fd
--- /dev/null
+++ b/apps/cic-eth/tests/fixtures_config.py
@@ -0,0 +1,27 @@
+# standard imports
+import os
+import logging
+
+# third-party imports
+import pytest
+import confini
+
+script_dir = os.path.dirname(os.path.realpath(__file__))
+root_dir = os.path.dirname(script_dir)
+logg = logging.getLogger(__file__)
+
+
+@pytest.fixture(scope='session')
+def load_config():
+ config_dir = os.path.join(root_dir, 'config/test')
+ conf = confini.Config(config_dir, 'CICTEST')
+ conf.process()
+ logg.debug('config {}'.format(conf))
+ return conf
+
+
+@pytest.fixture(scope='session')
+def config(
+ load_config
+ ):
+ return load_config
diff --git a/apps/cic-eth/tests/fixtures_database.py b/apps/cic-eth/tests/fixtures_database.py
new file mode 100644
index 00000000..b4fddd8c
--- /dev/null
+++ b/apps/cic-eth/tests/fixtures_database.py
@@ -0,0 +1,58 @@
+# standard imports
+import os
+import logging
+
+# third-party imports
+import pytest
+import alembic
+from alembic.config import Config as AlembicConfig
+
+# local imports
+from cic_eth.db import SessionBase
+from cic_eth.db import dsn_from_config
+
+logg = logging.getLogger(__file__)
+
+
+@pytest.fixture(scope='session')
+def database_engine(
+ load_config,
+ ):
+ if load_config.get('DATABASE_ENGINE') == 'sqlite':
+ try:
+ os.unlink(load_config.get('DATABASE_NAME'))
+ except FileNotFoundError:
+ pass
+ SessionBase.transactional = False
+ SessionBase.poolable = False
+ dsn = dsn_from_config(load_config)
+ #SessionBase.connect(dsn, True)
+ SessionBase.connect(dsn, load_config.get('DATABASE_DEBUG') != None)
+ return dsn
+
+
+@pytest.fixture(scope='function')
+def init_database(
+ load_config,
+ database_engine,
+ ):
+
+ rootdir = os.path.dirname(os.path.dirname(__file__))
+ dbdir = os.path.join(rootdir, 'cic_eth', 'db')
+ migrationsdir = os.path.join(dbdir, 'migrations', load_config.get('DATABASE_ENGINE'))
+ if not os.path.isdir(migrationsdir):
+ migrationsdir = os.path.join(dbdir, 'migrations', 'default')
+ logg.info('using migrations directory {}'.format(migrationsdir))
+
+ session = SessionBase.create_session()
+
+ ac = AlembicConfig(os.path.join(migrationsdir, 'alembic.ini'))
+ ac.set_main_option('sqlalchemy.url', database_engine)
+ ac.set_main_option('script_location', migrationsdir)
+
+ alembic.command.downgrade(ac, 'base')
+ alembic.command.upgrade(ac, 'head')
+
+ yield session
+ session.commit()
+ session.close()
diff --git a/apps/cic-eth/tests/fixtures_faucet.py b/apps/cic-eth/tests/fixtures_faucet.py
new file mode 100644
index 00000000..3bfa6972
--- /dev/null
+++ b/apps/cic-eth/tests/fixtures_faucet.py
@@ -0,0 +1,74 @@
+# third-party imports
+import pytest
+from cic_registry.pytest import *
+from erc20_single_shot_faucet import Faucet
+from cic_registry import zero_address
+
+
+@pytest.fixture(scope='session')
+def faucet_amount():
+ return 50
+
+
+@pytest.fixture(scope='session')
+def faucet(
+ faucet_amount,
+ config,
+ default_chain_spec,
+ cic_registry,
+ bancor_tokens,
+ w3_account_roles,
+ w3_account_token_owners,
+ solidity_abis,
+ w3,
+ #accounts_registry,
+ ):
+
+
+ abi = Faucet.abi('storage')
+ bytecode = Faucet.bytecode('storage')
+
+ cs = w3.eth.contract(abi=abi, bytecode=bytecode)
+ tx_hash = cs.constructor().transact({'from': w3_account_roles['eth_account_faucet_owner']})
+ rcpt = w3.eth.getTransactionReceipt(tx_hash)
+ cs_address = rcpt.contractAddress
+
+ abi = Faucet.abi()
+ bytecode = Faucet.bytecode()
+ cf = w3.eth.contract(abi=abi, bytecode=bytecode)
+
+ tx_hash = cf.constructor(
+ [
+ w3_account_roles['eth_account_faucet_owner']
+ ],
+ bancor_tokens[0],
+ cs_address,
+ zero_address,
+ #accounts_registry,
+ ).transact({
+ 'from': w3_account_roles['eth_account_faucet_owner']
+ }
+ )
+
+ rcpt = w3.eth.getTransactionReceipt(tx_hash)
+ cf_address = rcpt.contractAddress
+
+ c = w3.eth.contract(abi=abi, address=cf_address)
+ c.functions.setAmount(50).transact({
+ 'from': w3_account_roles['eth_account_faucet_owner']
+ }
+ )
+
+ logg.debug('foo {} bar {}'.format(cf_address, w3_account_roles))
+
+ # fund the faucet with token balance
+ token = w3.eth.contract(abi=solidity_abis['ERC20'], address=bancor_tokens[0])
+ token_symbol = token.functions.symbol().call()
+ tx_hash = token.functions.transfer(cf_address, 100000).transact({
+ 'from': w3_account_token_owners[token_symbol],
+ })
+
+ CICRegistry.add_contract(default_chain_spec, c, 'Faucet')
+
+ return cf_address
+
diff --git a/apps/cic-eth/tests/fixtures_keystore.py b/apps/cic-eth/tests/fixtures_keystore.py
new file mode 100644
index 00000000..c8864cb8
--- /dev/null
+++ b/apps/cic-eth/tests/fixtures_keystore.py
@@ -0,0 +1,52 @@
+# standard imports
+import os
+import json
+import logging
+
+# third-party imports
+import pytest
+from cic_eth.eth.rpc import RpcClient
+from crypto_dev_signer.keystore import ReferenceKeystore
+#from crypto_dev_signer.eth.web3ext import Web3 as Web3ext
+
+logg = logging.getLogger(__file__)
+
+
+# TODO: need mock for deterministic signatures
+# depends on mock blockchain (ganache) where private key is passed directly to this module
+@pytest.fixture(scope='session')
+def init_mock_keystore(
+ ):
+ raise NotImplementedError
+
+
+@pytest.fixture(scope='session')
+def init_keystore(
+ load_config,
+ database_engine,
+ ):
+ #symkey_hex = os.environ.get('CIC_SIGNER_SECRET')
+ symkey_hex = load_config.get('SIGNER_SECRET')
+ symkey = bytes.fromhex(symkey_hex)
+ opt = {
+ 'symmetric_key': symkey,
+ }
+ k = ReferenceKeystore(database_engine, **opt)
+ k.db_session.execute('DELETE from ethereum')
+ k.db_session.commit()
+ keys_file = load_config.get('SIGNER_DEV_KEYS_PATH')
+ addresses = []
+ if keys_file:
+ logg.debug('loading keys from {}'.format(keys_file))
+ f = open(keys_file, 'r')
+ j = json.load(f)
+ f.close()
+ signer_password = load_config.get('SIGNER_PASSWORD')
+ for pk in j['private']:
+ address_hex = k.import_raw_key(bytes.fromhex(pk[2:]), signer_password)
+ addresses.append(address_hex)
+
+ RpcClient.set_provider_address(addresses[0])
+ return addresses
+
+
diff --git a/apps/cic-eth/tests/fixtures_registry.py b/apps/cic-eth/tests/fixtures_registry.py
new file mode 100644
index 00000000..8f3067e4
--- /dev/null
+++ b/apps/cic-eth/tests/fixtures_registry.py
@@ -0,0 +1,10 @@
+# third-party imports
+import pytest
+import os
+import json
+
+# local imports
+from cic_registry import CICRegistry
+from cic_registry.contract import Contract
+from cic_registry.error import ChainExistsError
+
diff --git a/apps/cic-eth/tests/fixtures_token.py b/apps/cic-eth/tests/fixtures_token.py
new file mode 100644
index 00000000..b4aa426a
--- /dev/null
+++ b/apps/cic-eth/tests/fixtures_token.py
@@ -0,0 +1,27 @@
+# third-party imports
+import pytest
+from cic_registry import CICRegistry
+
+
+@pytest.fixture(scope='session')
+def token_registry(
+ default_chain_spec,
+ cic_registry,
+ solidity_abis,
+ evm_bytecodes,
+ w3,
+ ):
+
+ abi = solidity_abis['TokenRegistry']
+ bytecode = evm_bytecodes['TokenRegistry']
+
+ c = w3.eth.contract(abi=abi, bytecode=bytecode)
+ tx_hash = c.constructor().transact({'from': w3.eth.accounts[0]})
+ rcpt = w3.eth.getTransactionReceipt(tx_hash)
+ address = rcpt.contractAddress
+
+ c = w3.eth.contract(abi=abi, address=address)
+
+ CICRegistry.add_contract(default_chain_spec, c, 'TokenRegistry')
+
+ return address
diff --git a/apps/cic-eth/tests/fixtures_transferapproval.py b/apps/cic-eth/tests/fixtures_transferapproval.py
new file mode 100644
index 00000000..5c93cfe8
--- /dev/null
+++ b/apps/cic-eth/tests/fixtures_transferapproval.py
@@ -0,0 +1,30 @@
+# third-party imports
+import pytest
+from cic_registry.pytest import *
+from erc20_approval_escrow import TransferApproval
+
+
+@pytest.fixture(scope='session')
+def transfer_approval(
+ config,
+ default_chain_spec,
+ default_chain_registry,
+ bancor_tokens,
+ w3_account_roles,
+ cic_registry,
+ w3,
+ ):
+
+ abi = TransferApproval.abi()
+ bytecode = TransferApproval.bytecode()
+
+ c = w3.eth.contract(abi=abi, bytecode=bytecode)
+ approvers = [w3_account_roles['eth_account_approval_owner']]
+ tx_hash = c.constructor(approvers).transact({'from': w3_account_roles['eth_account_approval_owner']})
+ rcpt = w3.eth.getTransactionReceipt(tx_hash)
+
+ c = w3.eth.contract(abi=abi, address=rcpt.contractAddress)
+
+ CICRegistry.add_contract(default_chain_spec, c, 'TransferApproval')
+
+ return rcpt.contractAddress
diff --git a/apps/cic-eth/tests/fixtures_web3.py b/apps/cic-eth/tests/fixtures_web3.py
new file mode 100644
index 00000000..44999ff9
--- /dev/null
+++ b/apps/cic-eth/tests/fixtures_web3.py
@@ -0,0 +1,203 @@
+# standard imports
+import os
+import logging
+
+# third-party imports
+import hexbytes
+import pytest
+import web3
+import eth_tester
+from crypto_dev_signer.eth.transaction import EIP155Transaction
+from crypto_dev_signer.eth.signer.defaultsigner import ReferenceSigner as EIP155Signer
+from eth_keys import KeyAPI
+
+# local imports
+from cic_eth.eth import RpcClient
+from cic_eth.eth.rpc import GasOracle
+from cic_eth.db.models.role import AccountRole
+
+#logg = logging.getLogger(__name__)
+logg = logging.getLogger()
+
+
+@pytest.fixture(scope='session')
+def init_w3_nokey(
+ ):
+ provider = 'http://localhost:8545'
+ return web3.Web3(provider)
+
+
+class ProviderWalletExtension:
+
+ def __init__(self, provider, gas_price=1000000):
+ self.provider = provider
+ self.signer = EIP155Signer(provider)
+ self.default_gas_price = gas_price
+
+
+ def get(self, address, password=None):
+ return self.provider.get(address, password)
+
+
+ def new_account(self, password=None):
+ keys = KeyAPI()
+ pk = os.urandom(32)
+ account = self.provider.add_account(pk.hex())
+ self.provider.accounts[account] = keys.PrivateKey(pk)
+ return account
+
+
+ def sign_transaction(self, tx):
+ tx['chainId'] = int(tx['chainId'])
+ logg.debug('signing {}'.format(tx))
+ signer_tx = EIP155Transaction(tx, tx['nonce'], tx['chainId'])
+ tx_signed = self.signer.signTransaction(signer_tx)
+ tx_signed_dict = signer_tx.serialize()
+ tx_signed_dict['raw'] = '0x' + signer_tx.rlp_serialize().hex()
+ return tx_signed_dict
+
+
+ def sign(self, address, text=None, bytes=None):
+ logg.debug('sign message {} {}'.format(address[2:], text))
+ return self.signer.signEthereumMessage(address[2:], text)
+
+
+ def send_raw_transaction(self, rlp_tx_hex):
+ raw_tx = self.provider.backend.send_raw_transaction(bytes.fromhex(rlp_tx_hex[2:]))
+ return raw_tx
+
+
+ def gas_price(self):
+ return self.default_gas_price
+
+
+@pytest.fixture(scope='session')
+def init_wallet_extension(
+ init_eth_tester,
+ eth_provider,
+ ):
+
+ x = ProviderWalletExtension(init_eth_tester)
+
+ def _rpcclient_web3_constructor():
+ w3 = web3.Web3(eth_provider)
+ setattr(w3.eth, 'personal', x)
+ setattr(w3.eth, 'sign_transaction', x.sign_transaction)
+ setattr(w3.eth, 'send_raw_transaction', x.send_raw_transaction)
+ setattr(w3.eth, 'sign', x.sign)
+ setattr(w3.eth, 'gas_price', x.gas_price)
+ return (init_eth_tester, w3)
+
+ RpcClient.set_constructor(_rpcclient_web3_constructor)
+ init_eth_tester.signer = EIP155Signer(x)
+ return x
+
+
+@pytest.fixture(scope='session')
+def init_w3_conn(
+ default_chain_spec,
+ init_eth_tester,
+ init_wallet_extension,
+ ):
+
+ c = RpcClient(default_chain_spec)
+ x = ProviderWalletExtension(init_eth_tester)
+
+ # a hack to make available missing rpc calls we need
+ setattr(c.w3.eth, 'personal', x)
+ setattr(c.w3.eth, 'sign_transaction', x.sign_transaction)
+ setattr(c.w3.eth, 'send_raw_transaction', x.send_raw_transaction)
+ setattr(c.w3.eth, 'sign', x.sign)
+ return c.w3
+
+
+@pytest.fixture(scope='function')
+def init_w3(
+ init_eth_tester,
+ init_eth_account_roles,
+ init_w3_conn,
+ ):
+
+ yield init_w3_conn
+ logg.debug('mining om nom nom... {}'.format(init_eth_tester.mine_block()))
+
+
+@pytest.fixture(scope='function')
+def init_eth_account_roles(
+ init_database,
+ w3_account_roles,
+ ):
+
+ role = AccountRole.set('GAS_GIFTER', w3_account_roles.get('eth_account_gas_provider'))
+ init_database.add(role)
+ init_database.commit()
+ return w3_account_roles
+
+
+@pytest.fixture(scope='function')
+def init_rpc(
+ default_chain_spec,
+ init_eth_account_roles,
+ init_eth_tester,
+ init_wallet_extension,
+ ):
+
+ c = RpcClient(default_chain_spec)
+ x = ProviderWalletExtension(init_eth_tester)
+
+ # a hack to make available missing rpc calls we need
+ setattr(c.w3.eth, 'personal', x)
+ setattr(c.w3.eth, 'sign_transaction', x.sign_transaction)
+ setattr(c.w3.eth, 'send_raw_transaction', x.send_raw_transaction)
+ setattr(c.w3.eth, 'sign', x.sign)
+ yield c
+ logg.debug('mining om nom nom... {}'.format(init_eth_tester.mine_block()))
+
+
+
+@pytest.fixture(scope='session')
+def w3_account_roles(
+ config,
+ w3,
+ ):
+
+ role_ids = [
+ 'eth_account_bancor_deployer',
+ 'eth_account_gas_provider',
+ 'eth_account_reserve_owner',
+ 'eth_account_reserve_minter',
+ 'eth_account_accounts_index_owner',
+ 'eth_account_accounts_index_writer',
+ 'eth_account_sarafu_owner',
+ 'eth_account_sarafu_gifter',
+ 'eth_account_approval_owner',
+ 'eth_account_faucet_owner',
+ ]
+ roles = {}
+
+ i = 0
+ for r in role_ids:
+ a = w3.eth.accounts[i]
+ try:
+ a = config.get(r.upper())
+ except KeyError:
+ pass
+ roles[r] = a
+ i += 1
+
+ return roles
+
+@pytest.fixture(scope='session')
+def w3_account_token_owners(
+ tokens_to_deploy,
+ w3,
+ ):
+
+ token_owners = {}
+
+ i = 1
+ for t in tokens_to_deploy:
+ token_owners[t[2]] = w3.eth.accounts[i]
+ i += 1
+
+ return token_owners
diff --git a/apps/cic-eth/tests/functional/test_admin.py b/apps/cic-eth/tests/functional/test_admin.py
new file mode 100644
index 00000000..9d653814
--- /dev/null
+++ b/apps/cic-eth/tests/functional/test_admin.py
@@ -0,0 +1,215 @@
+# standard imports
+import os
+import logging
+
+# third-party imports
+import celery
+import pytest
+import web3
+
+# local imports
+from cic_eth.api import AdminApi
+from cic_eth.db.models.role import AccountRole
+from cic_eth.db.enum import StatusEnum
+from cic_eth.error import InitializationError
+from cic_eth.eth.task import sign_and_register_tx
+from cic_eth.eth.tx import cache_gas_refill_data
+from cic_eth.eth.util import unpack_signed_raw_tx
+from cic_eth.eth.rpc import RpcClient
+from cic_eth.eth.task import sign_tx
+from cic_eth.eth.tx import otx_cache_parse_tx
+from cic_eth.queue.tx import create as queue_create
+from cic_eth.queue.tx import get_tx
+
+logg = logging.getLogger()
+
+
+def test_resend_inplace(
+ default_chain_spec,
+ init_database,
+ init_w3,
+ celery_session_worker,
+ ):
+
+ chain_str = str(default_chain_spec)
+ c = RpcClient(default_chain_spec)
+
+ sigs = []
+ s = celery.signature(
+ 'cic_eth.eth.tx.refill_gas',
+ [
+ init_w3.eth.accounts[0],
+ chain_str,
+ ],
+ queue=None,
+ )
+ t = s.apply_async()
+ tx_raw = t.get()
+ assert t.successful()
+
+ tx_dict = unpack_signed_raw_tx(bytes.fromhex(tx_raw[2:]), default_chain_spec.chain_id())
+ gas_price_before = tx_dict['gasPrice']
+
+ s = celery.signature(
+ 'cic_eth.admin.ctrl.lock_send',
+ [
+ chain_str,
+ init_w3.eth.accounts[0],
+ ],
+ queue=None,
+ )
+ t = s.apply_async()
+ t.get()
+ assert t.successful()
+
+ api = AdminApi(c, queue=None)
+ t = api.resend(tx_dict['hash'], chain_str, unlock=True)
+ tx_hash_new_hex = t.get()
+ assert t.successful()
+
+ tx_raw_new = get_tx(tx_hash_new_hex)
+ logg.debug('get {}'.format(tx_raw_new))
+ tx_dict_new = unpack_signed_raw_tx(bytes.fromhex(tx_raw_new['signed_tx'][2:]), default_chain_spec.chain_id())
+ assert tx_hash_new_hex != tx_dict['hash']
+ assert tx_dict_new['gasPrice'] > gas_price_before
+
+ tx_dict_after = get_tx(tx_dict['hash'])
+ assert tx_dict_after['status'] == StatusEnum.OVERRIDDEN
+
+
+def test_check_fix_nonce(
+ default_chain_spec,
+ init_database,
+ init_eth_account_roles,
+ init_w3,
+ eth_empty_accounts,
+ celery_session_worker,
+ ):
+
+ chain_str = str(default_chain_spec)
+
+ sigs = []
+ for i in range(5):
+ s = celery.signature(
+ 'cic_eth.eth.tx.refill_gas',
+ [
+ eth_empty_accounts[i],
+ chain_str,
+ ],
+ queue=None,
+ )
+ sigs.append(s)
+
+ t = celery.group(sigs)()
+ txs = t.get()
+ assert t.successful()
+
+ tx_hash = web3.Web3.keccak(hexstr=txs[2])
+ c = RpcClient(default_chain_spec)
+ api = AdminApi(c, queue=None)
+ address = init_eth_account_roles['eth_account_gas_provider']
+ nonce_spec = api.check_nonce(address)
+ assert nonce_spec['nonce']['network'] == 0
+ assert nonce_spec['nonce']['queue'] == 4
+ assert nonce_spec['nonce']['blocking'] == None
+
+ s_set = celery.signature(
+ 'cic_eth.queue.tx.set_rejected',
+ [
+ tx_hash.hex(),
+ ],
+ queue=None,
+ )
+ t = s_set.apply_async()
+ t.get()
+ t.collect()
+ assert t.successful()
+
+
+ nonce_spec = api.check_nonce(address)
+ assert nonce_spec['nonce']['blocking'] == 2
+ assert nonce_spec['tx']['blocking'] == tx_hash.hex()
+
+ t = api.fix_nonce(address, nonce_spec['nonce']['blocking'])
+ t.get()
+ t.collect()
+ assert t.successful()
+
+ for tx in txs[3:]:
+ tx_hash = web3.Web3.keccak(hexstr=tx)
+ tx_dict = get_tx(tx_hash.hex())
+ assert tx_dict['status'] == StatusEnum.OVERRIDDEN
+
+
+def test_tag_account(
+ init_database,
+ eth_empty_accounts,
+ init_rpc,
+ ):
+
+ api = AdminApi(init_rpc)
+
+ api.tag_account('foo', eth_empty_accounts[0])
+ api.tag_account('bar', eth_empty_accounts[1])
+ api.tag_account('bar', eth_empty_accounts[2])
+
+ assert AccountRole.get_address('foo') == eth_empty_accounts[0]
+ assert AccountRole.get_address('bar') == eth_empty_accounts[2]
+
+
+def test_ready(
+ init_database,
+ eth_empty_accounts,
+ init_rpc,
+ w3,
+ ):
+
+ api = AdminApi(init_rpc)
+
+ with pytest.raises(InitializationError):
+ api.ready()
+
+ bogus_account = os.urandom(20)
+ bogus_account_hex = '0x' + bogus_account.hex()
+
+ api.tag_account('ETH_GAS_PROVIDER_ADDRESS', web3.Web3.toChecksumAddress(bogus_account_hex))
+ with pytest.raises(KeyError):
+ api.ready()
+
+ api.tag_account('ETH_GAS_PROVIDER_ADDRESS', eth_empty_accounts[0])
+ api.ready()
+
+
+def test_tx(
+ default_chain_spec,
+ cic_registry,
+ init_database,
+ init_rpc,
+ init_w3,
+ celery_session_worker,
+ ):
+
+ tx = {
+ 'from': init_w3.eth.accounts[0],
+ 'to': init_w3.eth.accounts[1],
+ 'nonce': 42,
+ 'gas': 21000,
+ 'gasPrice': 1000000,
+ 'value': 128,
+ 'chainId': default_chain_spec.chain_id(),
+ 'data': '',
+ }
+
+ (tx_hash_hex, tx_signed_raw_hex) = sign_tx(tx, str(default_chain_spec))
+ queue_create(
+ tx['nonce'],
+ tx['from'],
+ tx_hash_hex,
+ tx_signed_raw_hex,
+ str(default_chain_spec),
+ )
+ tx_recovered = unpack_signed_raw_tx(bytes.fromhex(tx_signed_raw_hex[2:]), default_chain_spec.chain_id())
+ cache_gas_refill_data(tx_hash_hex, tx_recovered)
+
+ api = AdminApi(init_rpc, queue=None)
+ tx = api.tx(default_chain_spec, tx_hash=tx_hash_hex)
diff --git a/apps/cic-eth/tests/functional/test_app.py b/apps/cic-eth/tests/functional/test_app.py
new file mode 100644
index 00000000..29426ea5
--- /dev/null
+++ b/apps/cic-eth/tests/functional/test_app.py
@@ -0,0 +1,162 @@
+# standard imports
+import os
+import logging
+import time
+
+# third-party imports
+import pytest
+import celery
+from cic_registry import CICRegistry
+
+# platform imports
+from cic_eth.api import Api
+from cic_eth.eth.factory import TxFactory
+
+logg = logging.getLogger(__name__)
+
+def test_account_api(
+ default_chain_spec,
+ init_w3,
+ init_database,
+ init_eth_account_roles,
+ celery_session_worker,
+ ):
+ api = Api(str(default_chain_spec), callback_param='accounts', callback_task='cic_eth.callbacks.noop.noop', queue=None)
+ t = api.create_account('', register=False)
+ t.get()
+ for r in t.collect():
+ print(r)
+ assert t.successful()
+
+
+def test_balance_api(
+ default_chain_spec,
+ default_chain_registry,
+ init_w3,
+ cic_registry,
+ init_database,
+ bancor_tokens,
+ bancor_registry,
+ celery_session_worker,
+ ):
+
+ token = CICRegistry.get_address(default_chain_spec, bancor_tokens[0])
+
+ api = Api(str(default_chain_spec), callback_param='balance', callback_task='cic_eth.callbacks.noop.noop', queue=None)
+ t = api.balance(init_w3.eth.accounts[2], token.symbol())
+ t.get()
+ for r in t.collect():
+ print(r)
+ assert t.successful()
+
+
+def test_transfer_api(
+ default_chain_spec,
+ init_w3,
+ cic_registry,
+ init_database,
+ bancor_registry,
+ bancor_tokens,
+ celery_session_worker,
+ ):
+
+ token = CICRegistry.get_address(default_chain_spec, bancor_tokens[0])
+
+ api = Api(str(default_chain_spec), callback_param='transfer', callback_task='cic_eth.callbacks.noop.noop', queue=None)
+ t = api.transfer(init_w3.eth.accounts[2], init_w3.eth.accounts[4], 111, token.symbol())
+ t.get()
+ for r in t.collect():
+ print(r)
+ assert t.successful()
+
+
+def test_transfer_approval_api(
+ default_chain_spec,
+ init_w3,
+ cic_registry,
+ init_database,
+ bancor_registry,
+ bancor_tokens,
+ transfer_approval,
+ celery_session_worker,
+ ):
+
+ token = CICRegistry.get_address(default_chain_spec, bancor_tokens[0])
+ approval_contract = CICRegistry.get_contract(default_chain_spec, 'TransferApproval')
+
+ api = Api(str(default_chain_spec), callback_param='transfer_request', callback_task='cic_eth.callbacks.noop.noop', queue=None)
+ t = api.transfer_request(init_w3.eth.accounts[2], init_w3.eth.accounts[4], approval_contract.address(), 111, token.symbol())
+ t.get()
+ #for r in t.collect():
+ # print(r)
+ assert t.successful()
+
+
+def test_convert_api(
+ default_chain_spec,
+ init_w3,
+ cic_registry,
+ init_database,
+ bancor_registry,
+ bancor_tokens,
+ celery_session_worker,
+ ):
+
+ token_alice = CICRegistry.get_address(default_chain_spec, bancor_tokens[0])
+ token_bob = CICRegistry.get_address(default_chain_spec, bancor_tokens[1])
+
+ api = Api(str(default_chain_spec), callback_param='convert', callback_task='cic_eth.callbacks.noop.noop', queue=None)
+ t = api.convert(init_w3.eth.accounts[2], 110, 100, token_alice.symbol(), token_bob.symbol())
+ for r in t.collect():
+ print(r)
+ assert t.successful()
+
+
+def test_convert_transfer_api(
+ default_chain_spec,
+ init_w3,
+ cic_registry,
+ init_database,
+ bancor_registry,
+ bancor_tokens,
+ celery_session_worker,
+ ):
+
+ token_alice = CICRegistry.get_address(default_chain_spec, bancor_tokens[0])
+ token_bob = CICRegistry.get_address(default_chain_spec, bancor_tokens[1])
+
+ api = Api(str(default_chain_spec), callback_param='convert_transfer', callback_task='cic_eth.callbacks.noop.noop', queue=None)
+ t = api.convert_transfer(init_w3.eth.accounts[2], init_w3.eth.accounts[4], 110, 100, token_alice.symbol(), token_bob.symbol())
+ t.get()
+ for r in t.collect():
+ print(r)
+ assert t.successful()
+
+
+def test_refill_gas(
+ default_chain_spec,
+ cic_registry,
+ init_database,
+ init_w3,
+ celery_session_worker,
+ eth_empty_accounts,
+ ):
+
+ api = Api(str(default_chain_spec), callback_param='convert_transfer', callback_task='cic_eth.callbacks.noop.noop', queue=None)
+ t = api.refill_gas(eth_empty_accounts[0])
+ t.get()
+ for r in t.collect():
+ print(r)
+ assert t.successful()
+
+
+def test_ping(
+ default_chain_spec,
+ celery_session_worker,
+ ):
+ api = Api(str(default_chain_spec), callback_param='ping', callback_task='cic_eth.callbacks.noop.noop', queue=None)
+ t = api.ping('pong')
+ t.get()
+ for r in t.collect():
+ print(r)
+ assert t.successful()
diff --git a/apps/cic-eth/tests/tasks/test_account.py b/apps/cic-eth/tests/tasks/test_account.py
new file mode 100644
index 00000000..b98436b0
--- /dev/null
+++ b/apps/cic-eth/tests/tasks/test_account.py
@@ -0,0 +1,128 @@
+# standard imports
+import os
+import logging
+import time
+
+# third-party imports
+import pytest
+import web3
+import celery
+
+# local imports
+from cic_eth.error import OutOfGasError
+from cic_eth.db.models.otx import Otx
+from cic_eth.db.models.base import SessionBase
+from cic_eth.db.enum import StatusEnum
+from cic_eth.db.enum import StatusEnum
+from cic_eth.db.models.nonce import Nonce
+from cic_eth.db.models.role import AccountRole
+from cic_eth.eth.account import AccountTxFactory
+
+logg = logging.getLogger() #__name__)
+
+
+def test_create_account(
+ default_chain_spec,
+ init_w3,
+ init_database,
+ celery_session_worker,
+ ):
+
+ s = celery.signature(
+ 'cic_eth.eth.account.create',
+ [
+ 'foo',
+ str(default_chain_spec),
+ ],
+ )
+ t = s.apply_async()
+ r = t.get()
+ logg.debug('got account {}'.format(r))
+
+ session = SessionBase.create_session()
+ q = session.query(Nonce).filter(Nonce.address_hex==r)
+ o = q.first()
+ logg.debug('oooo s {}'.format(o))
+ session.close()
+ assert o != None
+ assert o.nonce == 0
+
+ s = celery.signature(
+ 'cic_eth.eth.account.have',
+ [
+ r,
+ str(default_chain_spec),
+ ],
+ )
+ t = s.apply_async()
+ assert r == t.get()
+
+
+def test_register_account(
+ default_chain_spec,
+ accounts_registry,
+ init_database,
+ init_eth_tester,
+ init_w3,
+ cic_registry,
+ celery_session_worker,
+ eth_empty_accounts,
+ ):
+
+ logg.debug('chainspec {}'.format(str(default_chain_spec)))
+
+ s = celery.signature(
+ 'cic_eth.eth.account.register',
+ [
+ eth_empty_accounts[0],
+ str(default_chain_spec),
+ init_w3.eth.accounts[0],
+ ],
+ )
+ t = s.apply_async()
+ address = t.get()
+ r = t.collect()
+ t.successful()
+
+ session = SessionBase.create_session()
+ o = session.query(Otx).first()
+ tx_signed_hex = o.signed_tx
+ session.close()
+
+ s_send = celery.signature(
+ 'cic_eth.eth.tx.send',
+ [
+ [tx_signed_hex],
+ str(default_chain_spec),
+ ],
+ )
+ t = s_send.apply_async()
+ address = t.get()
+ r = t.collect()
+ t.successful()
+
+ init_eth_tester.mine_block()
+
+ assert accounts_registry.have(eth_empty_accounts[0])
+
+
+def test_role_task(
+ init_database,
+ celery_session_worker,
+ default_chain_spec,
+ ):
+
+ address = '0x' + os.urandom(20).hex()
+ role = AccountRole.set('foo', address)
+ init_database.add(role)
+ init_database.commit()
+ s = celery.signature(
+ 'cic_eth.eth.account.role',
+ [
+ address,
+ str(default_chain_spec),
+ ],
+ )
+ t = s.apply_async()
+ r = t.get()
+ assert r == 'foo'
diff --git a/apps/cic-eth/tests/tasks/test_convert.py b/apps/cic-eth/tests/tasks/test_convert.py
new file mode 100644
index 00000000..46857b69
--- /dev/null
+++ b/apps/cic-eth/tests/tasks/test_convert.py
@@ -0,0 +1,45 @@
+import logging
+import os
+
+import celery
+
+from cic_eth.db import TxConvertTransfer
+from cic_eth.eth.bancor import BancorTxFactory
+
+logg = logging.getLogger()
+
+
+def test_transfer_after_convert(
+ init_w3,
+ init_database,
+ cic_registry,
+ bancor_tokens,
+ bancor_registry,
+ default_chain_spec,
+ celery_session_worker,
+ ):
+
+ tx_hash = os.urandom(32).hex()
+ txct = TxConvertTransfer(tx_hash, init_w3.eth.accounts[1], default_chain_spec)
+ init_database.add(txct)
+ init_database.commit()
+
+ s = celery.signature(
+ 'cic_eth.eth.bancor.transfer_converted',
+ [
+ [
+ {
+ 'address': bancor_tokens[0],
+ },
+ ],
+ init_w3.eth.accounts[0],
+ init_w3.eth.accounts[1],
+ 1024,
+ tx_hash,
+ str(default_chain_spec),
+ ],
+ )
+ t = s.apply_async()
+ t.get()
+ t.collect()
+ assert t.successful()
diff --git a/apps/cic-eth/tests/tasks/test_faucet.py b/apps/cic-eth/tests/tasks/test_faucet.py
new file mode 100644
index 00000000..b6575ef4
--- /dev/null
+++ b/apps/cic-eth/tests/tasks/test_faucet.py
@@ -0,0 +1,66 @@
+# standard imports
+import os
+import json
+import logging
+
+# third-party imports
+import celery
+
+# local imports
+from cic_eth.eth.account import unpack_gift
+from cic_eth.eth.factory import TxFactory
+from cic_eth.eth.util import unpack_signed_raw_tx
+
+logg = logging.getLogger()
+
+script_dir = os.path.dirname(__file__)
+
+
+def test_faucet(
+ default_chain_spec,
+ faucet_amount,
+ faucet,
+ eth_empty_accounts,
+ bancor_tokens,
+ w3_account_roles,
+ w3_account_token_owners,
+ init_w3,
+ solidity_abis,
+ init_eth_tester,
+ cic_registry,
+ celery_session_worker,
+ init_database,
+ ):
+
+ s = celery.signature(
+ 'cic_eth.eth.account.gift',
+ [
+ init_w3.eth.accounts[7],
+ str(default_chain_spec),
+ ],
+ )
+ s_send = celery.signature(
+ 'cic_eth.eth.tx.send',
+ [
+ str(default_chain_spec),
+ ],
+ )
+ s.link(s_send)
+ t = s.apply_async()
+ signed_tx = t.get()
+ for r in t.collect():
+ logg.debug('result {}'.format(r))
+
+ assert t.successful()
+
+ tx = unpack_signed_raw_tx(bytes.fromhex(signed_tx[0][2:]), default_chain_spec.chain_id())
+ giveto = unpack_gift(tx['data'])
+ assert giveto['to'] == init_w3.eth.accounts[7]
+
+ init_eth_tester.mine_block()
+
+ token = init_w3.eth.contract(abi=solidity_abis['ERC20'], address=bancor_tokens[0])
+
+ balance = token.functions.balanceOf(init_w3.eth.accounts[7]).call()
+
+ assert balance == faucet_amount
diff --git a/apps/cic-eth/tests/tasks/test_gas_tasks.py b/apps/cic-eth/tests/tasks/test_gas_tasks.py
new file mode 100644
index 00000000..c3fa07c7
--- /dev/null
+++ b/apps/cic-eth/tests/tasks/test_gas_tasks.py
@@ -0,0 +1,246 @@
+# standard imports
+import logging
+import time
+
+# third-party imports
+import pytest
+import celery
+from web3.exceptions import ValidationError
+
+# local imports
+from cic_eth.db.enum import StatusEnum
+from cic_eth.db.models.otx import Otx
+from cic_eth.db.models.tx import TxCache
+from cic_eth.db.models.base import SessionBase
+from cic_eth.eth.task import sign_and_register_tx
+from cic_eth.eth.task import sign_tx
+from cic_eth.eth.token import TokenTxFactory
+from cic_eth.eth.token import TxFactory
+from cic_eth.eth.token import cache_transfer_data
+from cic_eth.eth.rpc import RpcClient
+from cic_eth.queue.tx import create as queue_create
+from cic_eth.error import OutOfGasError
+from cic_eth.db.models.role import AccountRole
+from cic_eth.error import AlreadyFillingGasError
+
+logg = logging.getLogger()
+
+
+def test_refill_gas(
+ default_chain_spec,
+ init_eth_tester,
+ init_rpc,
+ init_database,
+ cic_registry,
+ init_eth_account_roles,
+ celery_session_worker,
+ eth_empty_accounts,
+ ):
+
+ provider_address = AccountRole.get_address('GAS_GIFTER')
+ receiver_address = eth_empty_accounts[0]
+
+ c = init_rpc
+ refill_amount = c.refill_amount()
+
+ balance = init_rpc.w3.eth.getBalance(receiver_address)
+ s = celery.signature(
+ 'cic_eth.eth.tx.refill_gas',
+ [
+ receiver_address,
+ str(default_chain_spec),
+ ],
+ )
+
+ t = s.apply_async()
+ r = t.get()
+ t.collect()
+ assert t.successful()
+
+ s = celery.signature(
+ 'cic_eth.eth.tx.send',
+ [
+ [r],
+ str(default_chain_spec),
+ ],
+ )
+ t = s.apply_async()
+ r = t.get()
+ t.collect()
+ assert t.successful()
+
+ init_eth_tester.mine_block()
+ balance_new = init_rpc.w3.eth.getBalance(receiver_address)
+ assert balance_new == (balance + refill_amount)
+
+ # Verify that entry is added in TxCache
+ session = SessionBase.create_session()
+ q = session.query(Otx)
+ q = q.join(TxCache)
+ q = q.filter(TxCache.recipient==receiver_address)
+ r = q.first()
+
+ assert r.status == StatusEnum.SENT
+
+
+def test_refill_deduplication(
+ default_chain_spec,
+ init_rpc,
+ init_database,
+ init_eth_account_roles,
+ cic_registry,
+ celery_session_worker,
+ eth_empty_accounts,
+ ):
+
+ provider_address = AccountRole.get_address('ETH_GAS_PROVIDER_ADDRESS')
+ receiver_address = eth_empty_accounts[0]
+
+ c = init_rpc
+ refill_amount = c.refill_amount()
+
+ s = celery.signature(
+ 'cic_eth.eth.tx.refill_gas',
+ [
+ receiver_address,
+ str(default_chain_spec),
+ ],
+ )
+
+ t = s.apply_async()
+ r = t.get()
+ for e in t.collect():
+ pass
+ assert t.successful()
+
+ s = celery.signature(
+ 'cic_eth.eth.tx.refill_gas',
+ [
+ receiver_address,
+ str(default_chain_spec),
+ ],
+ )
+
+ t = s.apply_async()
+ with pytest.raises(AlreadyFillingGasError):
+ t.get()
+
+
+def test_check_gas(
+ default_chain_spec,
+ init_eth_tester,
+ init_w3,
+ init_rpc,
+ eth_empty_accounts,
+ init_database,
+ cic_registry,
+ celery_session_worker,
+ bancor_registry,
+ bancor_tokens,
+ ):
+
+ provider_address = init_w3.eth.accounts[0]
+ gas_receiver_address = eth_empty_accounts[0]
+ token_receiver_address = init_w3.eth.accounts[1]
+
+ c = init_rpc
+ txf = TokenTxFactory(gas_receiver_address, c)
+ tx_transfer = txf.transfer(bancor_tokens[0], token_receiver_address, 42, default_chain_spec)
+
+ (tx_hash_hex, tx_signed_raw_hex) = sign_and_register_tx(tx_transfer, str(default_chain_spec), None)
+
+ gas_price = c.gas_price()
+ gas_limit = tx_transfer['gas']
+
+ s = celery.signature(
+ 'cic_eth.eth.tx.check_gas',
+ [
+ [tx_hash_hex],
+ str(default_chain_spec),
+ [],
+ gas_receiver_address,
+ gas_limit * gas_price,
+ ],
+ )
+ t = s.apply_async()
+ with pytest.raises(OutOfGasError):
+ r = t.get()
+ #assert len(r) == 0
+
+ time.sleep(1)
+ t.collect()
+
+ session = SessionBase.create_session()
+ q = session.query(Otx)
+ q = q.filter(Otx.tx_hash==tx_hash_hex)
+ r = q.first()
+ session.close()
+ assert r.status == StatusEnum.WAITFORGAS
+
+
+def test_resend_with_higher_gas(
+ default_chain_spec,
+ init_eth_tester,
+ init_w3,
+ init_rpc,
+ init_database,
+ cic_registry,
+ celery_session_worker,
+ bancor_registry,
+ bancor_tokens,
+ ):
+
+ c = init_rpc
+ txf = TokenTxFactory(init_w3.eth.accounts[0], c)
+
+ tx_transfer = txf.transfer(bancor_tokens[0], init_w3.eth.accounts[1], 1024, default_chain_spec)
+ logg.debug('txtransfer {}'.format(tx_transfer))
+ (tx_hash_hex, tx_signed_raw_hex) = sign_tx(tx_transfer, str(default_chain_spec))
+ logg.debug('signed raw {}'.format(tx_signed_raw_hex))
+ queue_create(
+ tx_transfer['nonce'],
+ tx_transfer['from'],
+ tx_hash_hex,
+ tx_signed_raw_hex,
+ str(default_chain_spec),
+ )
+ logg.debug('create {}'.format(tx_transfer['from']))
+ cache_transfer_data(
+ tx_hash_hex,
+ tx_transfer, #_signed_raw_hex,
+ )
+
+ s_resend = celery.signature(
+ 'cic_eth.eth.tx.resend_with_higher_gas',
+ [
+ tx_hash_hex,
+ str(default_chain_spec),
+ ],
+ )
+ t = s_resend.apply_async()
+
+ i = 0
+ for r in t.collect():
+ logg.debug('{} {}'.format(i, r[0].get()))
+ i += 1
+
+ assert t.successful()
+
+#
+#def test_resume(
+# default_chain_spec,
+# init_eth_tester,
+# w3,
+# w3_account_roles,
+# init_database,
+# bancor_tokens,
+# celery_session_worker,
+# eth_empty_accounts,
+# ):
+#
+# txf = TokenTxFactory()
+#
+# tx_transfer = txf.transfer(bancor_tokens[0], eth_empty_accounts[1], 1024)
+# (tx_hash_hex, tx_signed_raw_hex) = sign_and_register_tx(tx_transfer)
+#
+# resume_tx()
diff --git a/apps/cic-eth/tests/tasks/test_lock_tasks.py b/apps/cic-eth/tests/tasks/test_lock_tasks.py
new file mode 100644
index 00000000..cd077ea2
--- /dev/null
+++ b/apps/cic-eth/tests/tasks/test_lock_tasks.py
@@ -0,0 +1,355 @@
+# standard imports
+import os
+
+# third-party imports
+import celery
+import pytest
+
+# local imports
+from cic_eth.db.models.lock import Lock
+from cic_eth.db.models.otx import Otx
+from cic_eth.db.enum import LockEnum
+from cic_eth.error import LockedError
+
+
+@pytest.mark.parametrize(
+ 'task_postfix,flag_enum',
+ [
+ ('send', LockEnum.SEND),
+ ('queue', LockEnum.QUEUE),
+ ],
+ )
+def test_lock_task(
+ init_database,
+ celery_session_worker,
+ default_chain_spec,
+ task_postfix,
+ flag_enum,
+ ):
+
+ chain_str = str(default_chain_spec)
+ address = '0x' + os.urandom(20).hex()
+
+ s = celery.signature(
+ 'cic_eth.admin.ctrl.lock_{}'.format(task_postfix),
+ [
+ 'foo',
+ chain_str,
+ address,
+ ],
+ )
+ t = s.apply_async()
+ r = t.get()
+ assert t.successful()
+ assert r == 'foo'
+
+ q = init_database.query(Lock)
+ q = q.filter(Lock.address==address)
+ lock = q.first()
+ assert lock != None
+ assert lock.flags == flag_enum
+
+ s = celery.signature(
+ 'cic_eth.admin.ctrl.unlock_{}'.format(task_postfix),
+ [
+ 'foo',
+ chain_str,
+ address,
+ ],
+ )
+ t = s.apply_async()
+ r = t.get()
+ assert t.successful()
+ assert r == 'foo'
+
+ q = init_database.query(Lock)
+ q = q.filter(Lock.address==address)
+ lock = q.first()
+ assert lock == None
+
+
+def test_lock_check_task(
+ init_database,
+ celery_session_worker,
+ default_chain_spec,
+ ):
+
+ chain_str = str(default_chain_spec)
+ address = '0x' + os.urandom(20).hex()
+
+ s = celery.signature(
+ 'cic_eth.admin.ctrl.lock_send',
+ [
+ 'foo',
+ chain_str,
+ address,
+ ],
+ )
+ t = s.apply_async()
+ r = t.get()
+
+ s = celery.signature(
+ 'cic_eth.admin.ctrl.lock_queue',
+ [
+ 'foo',
+ chain_str,
+ address,
+ ],
+ )
+ t = s.apply_async()
+ r = t.get()
+
+ s = celery.signature(
+ 'cic_eth.admin.ctrl.check_lock',
+ [
+ 'foo',
+ chain_str,
+ LockEnum.SEND,
+ address,
+ ],
+ )
+ t = s.apply_async()
+
+ with pytest.raises(LockedError):
+ r = t.get()
+
+
+ s = celery.signature(
+ 'cic_eth.admin.ctrl.check_lock',
+ [
+ 'foo',
+ chain_str,
+ LockEnum.CREATE,
+ address,
+ ],
+ )
+ t = s.apply_async()
+ r = t.get()
+ assert r == 'foo'
+
+
+def test_lock_arbitrary_task(
+ init_database,
+ celery_session_worker,
+ default_chain_spec,
+ ):
+
+ chain_str = str(default_chain_spec)
+ address = '0x' + os.urandom(20).hex()
+
+ s = celery.signature(
+ 'cic_eth.admin.ctrl.lock',
+ [
+ 'foo',
+ chain_str,
+ address,
+ LockEnum.SEND | LockEnum.QUEUE,
+ ],
+ )
+ t = s.apply_async()
+ r = t.get()
+ assert r == 'foo'
+
+ s = celery.signature(
+ 'cic_eth.admin.ctrl.check_lock',
+ [
+ 'foo',
+ chain_str,
+ LockEnum.SEND | LockEnum.QUEUE,
+ address,
+ ],
+ )
+ t = s.apply_async()
+ with pytest.raises(LockedError):
+ r = t.get()
+ assert r == 'foo'
+
+ s = celery.signature(
+ 'cic_eth.admin.ctrl.unlock',
+ [
+ 'foo',
+ chain_str,
+ address,
+ LockEnum.SEND,
+ ],
+ )
+ t = s.apply_async()
+ r = t.get()
+ assert r == 'foo'
+
+
+ s = celery.signature(
+ 'cic_eth.admin.ctrl.check_lock',
+ [
+ 'foo',
+ chain_str,
+ LockEnum.SEND,
+ address,
+ ],
+ )
+ t = s.apply_async()
+ r = t.get()
+
+
+ s = celery.signature(
+ 'cic_eth.admin.ctrl.unlock',
+ [
+ 'foo',
+ chain_str,
+ address,
+ ],
+ )
+ t = s.apply_async()
+ r = t.get()
+ assert r == 'foo'
+
+
+ s = celery.signature(
+ 'cic_eth.admin.ctrl.check_lock',
+ [
+ 'foo',
+ chain_str,
+ LockEnum.QUEUE,
+ address,
+ ],
+ )
+ t = s.apply_async()
+ r = t.get()
+
+
+def test_lock_list(
+ default_chain_spec,
+ init_database,
+ celery_session_worker,
+ ):
+
+ chain_str = str(default_chain_spec)
+
+ # Empty list of no lock set
+ s = celery.signature(
+ 'cic_eth.queue.tx.get_lock',
+ [],
+ )
+ t = s.apply_async()
+ r = t.get()
+
+ assert len(r) == 0
+
+ # One element if lock set and no link with otx
+ tx_hash = '0x' + os.urandom(32).hex()
+ address_foo = '0x' + os.urandom(20).hex()
+ s = celery.signature(
+ 'cic_eth.admin.ctrl.lock_send',
+ [
+ 'foo',
+ chain_str,
+ address_foo,
+ tx_hash,
+ ],
+ )
+ t = s.apply_async()
+ r = t.get()
+
+ s = celery.signature(
+ 'cic_eth.queue.tx.get_lock',
+ [],
+ )
+ t = s.apply_async()
+ r = t.get()
+
+ assert len(r) == 1
+ assert r[0]['tx_hash'] == None
+ assert r[0]['address'] == address_foo
+ assert r[0]['flags'] == LockEnum.SEND
+
+ # One element if lock set and link with otx, tx_hash now available
+ signed_tx = '0x' + os.urandom(128).hex()
+ otx = Otx.add(
+ 0,
+ address_foo,
+ tx_hash,
+ signed_tx,
+ )
+ s = celery.signature(
+ 'cic_eth.admin.ctrl.unlock_send',
+ [
+ 'foo',
+ chain_str,
+ address_foo,
+ ],
+ )
+ t = s.apply_async()
+ r = t.get()
+
+ s = celery.signature(
+ 'cic_eth.admin.ctrl.lock_send',
+ [
+ 'foo',
+ chain_str,
+ address_foo,
+ tx_hash,
+ ],
+ )
+ t = s.apply_async()
+ r = t.get()
+
+ s = celery.signature(
+ 'cic_eth.queue.tx.get_lock',
+ [],
+ )
+ t = s.apply_async()
+ r = t.get()
+
+ assert r[0]['tx_hash'] == tx_hash
+
+
+ # Two elements if two locks in place
+ address_bar = '0x' + os.urandom(20).hex()
+ tx_hash = '0x' + os.urandom(32).hex()
+ s = celery.signature(
+ 'cic_eth.admin.ctrl.lock_queue',
+ [
+ 'bar',
+ chain_str,
+ address_bar,
+ tx_hash,
+ ],
+ )
+ t = s.apply_async()
+ r = t.get()
+
+ s = celery.signature(
+ 'cic_eth.queue.tx.get_lock',
+ [],
+ )
+ t = s.apply_async()
+ r = t.get()
+
+ assert len(r) == 2
+
+ # One element if filtered by address
+ s = celery.signature(
+ 'cic_eth.queue.tx.get_lock',
+ [
+ address_bar,
+ ],
+ )
+ t = s.apply_async()
+ r = t.get()
+
+ assert len(r) == 1
+ assert r[0]['tx_hash'] == None
+ assert r[0]['address'] == address_bar
+ assert r[0]['flags'] == LockEnum.QUEUE
+
+ address_bogus = '0x' + os.urandom(20).hex()
+ # No elements if filtered by non-existent address
+ s = celery.signature(
+ 'cic_eth.queue.tx.get_lock',
+ [
+ address_bogus,
+ ],
+ )
+ t = s.apply_async()
+ r = t.get()
+
diff --git a/apps/cic-eth/tests/tasks/test_nonce_tasks.py b/apps/cic-eth/tests/tasks/test_nonce_tasks.py
new file mode 100644
index 00000000..0f3e2685
--- /dev/null
+++ b/apps/cic-eth/tests/tasks/test_nonce_tasks.py
@@ -0,0 +1,49 @@
+# third-party imports
+import celery
+
+# local imports
+from cic_eth.admin.nonce import shift_nonce
+from cic_eth.queue.tx import create as queue_create
+from cic_eth.eth.tx import otx_cache_parse_tx
+from cic_eth.eth.task import sign_tx
+
+def test_shift_nonce(
+ default_chain_spec,
+ init_database,
+ init_w3,
+ celery_session_worker,
+ ):
+
+ chain_str = str(default_chain_spec)
+
+ tx_hashes = []
+ for i in range(5):
+ tx = {
+ 'from': init_w3.eth.accounts[0],
+ 'to': init_w3.eth.accounts[i],
+ 'nonce': i,
+ 'gas': 21000,
+ 'gasPrice': 1000000,
+ 'value': 128,
+ 'chainId': default_chain_spec.chain_id(),
+ 'data': '',
+ }
+
+ (tx_hash_hex, tx_signed_raw_hex) = sign_tx(tx, chain_str)
+ queue_create(tx['nonce'], init_w3.eth.accounts[0], tx_hash_hex, tx_signed_raw_hex, chain_str)
+ otx_cache_parse_tx(tx_hash_hex, tx_signed_raw_hex, chain_str)
+ tx_hashes.append(tx_hash_hex)
+
+ s = celery.signature(
+ 'cic_eth.admin.nonce.shift_nonce',
+ [
+ chain_str,
+ tx_hashes[2],
+ ],
+ queue=None,
+ )
+ t = s.apply_async()
+ r = t.get()
+ for _ in t.collect():
+ pass
+ assert t.successful()
diff --git a/apps/cic-eth/tests/tasks/test_otx_tasks.py b/apps/cic-eth/tests/tasks/test_otx_tasks.py
new file mode 100644
index 00000000..44ed3024
--- /dev/null
+++ b/apps/cic-eth/tests/tasks/test_otx_tasks.py
@@ -0,0 +1,174 @@
+# standard imports
+import os
+import logging
+
+# third-party imports
+import pytest
+import celery
+from cic_registry import zero_address
+
+# local imports
+from cic_eth.db.models.otx import Otx
+from cic_eth.db.models.tx import TxCache
+from cic_eth.db.enum import StatusEnum
+
+logg = logging.getLogger()
+
+# TODO: Refactor to use test vector decorator
+def test_status_success(
+ init_w3,
+ init_database,
+ celery_session_worker,
+ ):
+
+ tx_hash = '0x' + os.urandom(32).hex()
+ signed_tx = '0x' + os.urandom(128).hex()
+ account = '0x' + os.urandom(20).hex()
+
+ otx = Otx(0, init_w3.eth.accounts[0], tx_hash, signed_tx)
+ init_database.add(otx)
+ init_database.commit()
+ assert otx.status == StatusEnum.PENDING
+
+ txc = TxCache(tx_hash, account, init_w3.eth.accounts[0], zero_address, zero_address, 13, 13)
+ init_database.add(txc)
+ init_database.commit()
+
+ s = celery.signature(
+ 'cic_eth.queue.tx.set_sent_status',
+ [tx_hash],
+ )
+ t = s.apply_async()
+ t.get()
+ assert t.successful()
+ init_database.refresh(otx)
+ assert otx.status == StatusEnum.SENT
+
+ s = celery.signature(
+ 'cic_eth.queue.tx.set_final_status',
+ [tx_hash, 13],
+ )
+ t = s.apply_async()
+ t.get()
+ assert t.successful()
+ init_database.refresh(otx)
+ assert otx.status == StatusEnum.SUCCESS
+
+
+def test_status_tempfail_resend(
+ init_w3,
+ init_database,
+ celery_session_worker,
+ ):
+
+ tx_hash = '0x' + os.urandom(32).hex()
+ signed_tx = '0x' + os.urandom(128).hex()
+ account = '0x' + os.urandom(20).hex()
+
+ otx = Otx(0, init_w3.eth.accounts[0], tx_hash, signed_tx)
+ init_database.add(otx)
+ init_database.commit()
+
+ txc = TxCache(tx_hash, account, init_w3.eth.accounts[0], zero_address, zero_address, 13, 13)
+ init_database.add(txc)
+ init_database.commit()
+
+ s = celery.signature(
+ 'cic_eth.queue.tx.set_sent_status',
+ [tx_hash, True],
+ )
+ t = s.apply_async()
+ t.get()
+ assert t.successful()
+ init_database.refresh(otx)
+ assert otx.status == StatusEnum.SENDFAIL
+
+ s = celery.signature(
+ 'cic_eth.queue.tx.set_sent_status',
+ [tx_hash],
+ )
+ t = s.apply_async()
+ t.get()
+ assert t.successful()
+ init_database.refresh(otx)
+ assert otx.status == StatusEnum.SENT
+
+
+
+def test_status_fail(
+ init_w3,
+ init_database,
+ celery_session_worker,
+ ):
+
+ tx_hash = '0x' + os.urandom(32).hex()
+ signed_tx = '0x' + os.urandom(128).hex()
+ account = '0x' + os.urandom(20).hex()
+
+ otx = Otx(0, init_w3.eth.accounts[0], tx_hash, signed_tx)
+ init_database.add(otx)
+ init_database.commit()
+
+ txc = TxCache(tx_hash, account, init_w3.eth.accounts[0], zero_address, zero_address, 13, 13)
+ init_database.add(txc)
+ init_database.commit()
+
+ s = celery.signature(
+ 'cic_eth.queue.tx.set_sent_status',
+ [tx_hash],
+ )
+ t = s.apply_async()
+ t.get()
+ assert t.successful()
+ init_database.refresh(otx)
+ assert otx.status == StatusEnum.SENT
+
+ s = celery.signature(
+ 'cic_eth.queue.tx.set_final_status',
+ [tx_hash, 13, True],
+ )
+ t = s.apply_async()
+ t.get()
+ assert t.successful()
+ init_database.refresh(otx)
+ assert otx.status == StatusEnum.REVERTED
+
+
+
+def test_status_fubar(
+ init_w3,
+ init_database,
+ celery_session_worker,
+ ):
+
+ tx_hash = '0x' + os.urandom(32).hex()
+ signed_tx = '0x' + os.urandom(128).hex()
+ account = '0x' + os.urandom(20).hex()
+
+ otx = Otx(0, init_w3.eth.accounts[0], tx_hash, signed_tx)
+ init_database.add(otx)
+ init_database.commit()
+
+ txc = TxCache(tx_hash, account, init_w3.eth.accounts[0], zero_address, zero_address, 13, 13)
+ init_database.add(txc)
+ init_database.commit()
+
+ s = celery.signature(
+ 'cic_eth.queue.tx.set_sent_status',
+ [tx_hash],
+ )
+ t = s.apply_async()
+ t.get()
+ assert t.successful()
+ init_database.refresh(otx)
+ assert otx.status == StatusEnum.SENT
+
+ s = celery.signature(
+ 'cic_eth.queue.tx.set_fubar',
+ [tx_hash],
+ )
+ t = s.apply_async()
+ t.get()
+ assert t.successful()
+ init_database.refresh(otx)
+ assert otx.status == StatusEnum.FUBAR
diff --git a/apps/cic-eth/tests/tasks/test_states.py b/apps/cic-eth/tests/tasks/test_states.py
new file mode 100644
index 00000000..99ad4914
--- /dev/null
+++ b/apps/cic-eth/tests/tasks/test_states.py
@@ -0,0 +1,125 @@
+# standard imports
+import logging
+import time
+
+# third-party imports
+import celery
+
+# local imports
+from cic_eth.db.models.base import SessionBase
+from cic_eth.db.models.otx import Otx
+from cic_eth.db.enum import StatusEnum
+from cic_eth.eth.task import sign_and_register_tx
+
+logg = logging.getLogger()
+
+
+def test_states_initial(
+ init_w3,
+ init_database,
+ init_eth_account_roles,
+ celery_session_worker,
+ ):
+ tx = {
+ 'from': init_w3.eth.accounts[0],
+ 'to': init_w3.eth.accounts[1],
+ 'nonce': 42,
+ 'gas': 21000,
+ 'gasPrice': 1000000,
+ 'value': 128,
+ 'chainId': 666,
+ 'data': '',
+ }
+ (tx_hash_hex, tx_raw_signed_hex) = sign_and_register_tx(tx, 'Foo:666', None)
+
+ otx = init_database.query(Otx).filter(Otx.tx_hash==tx_hash_hex).first()
+ assert otx.status == StatusEnum.PENDING.value
+
+ s = celery.signature(
+ 'cic_eth.eth.tx.check_gas',
+ [
+ [tx_hash_hex],
+ 'Foo:666',
+ [tx_raw_signed_hex],
+ init_w3.eth.accounts[0],
+ 8000000,
+ ],
+ queue=None,
+ )
+ t = s.apply_async()
+ r = t.get()
+ for c in t.collect():
+ pass
+ assert t.successful()
+
+ session = SessionBase.create_session()
+ otx = session.query(Otx).filter(Otx.tx_hash==tx_hash_hex).first()
+ assert otx.status == StatusEnum.READYSEND.value
+
+ otx.waitforgas(session=session)
+ session.commit()
+
+ s = celery.signature(
+ 'cic_eth.eth.tx.check_gas',
+ [
+ [tx_hash_hex],
+ 'Foo:666',
+ [tx_raw_signed_hex],
+ init_w3.eth.accounts[0],
+ 8000000,
+ ],
+ queue=None,
+ )
+ t = s.apply_async()
+ r = t.get()
+ for c in t.collect():
+ pass
+ assert t.successful()
+
+ session = SessionBase.create_session()
+ otx = session.query(Otx).filter(Otx.tx_hash==tx_hash_hex).first()
+ assert otx.status == StatusEnum.READYSEND.value
+
+
+def test_states_failed(
+ init_w3,
+ init_database,
+ init_eth_account_roles,
+ celery_session_worker,
+ ):
+ tx = {
+ 'from': init_w3.eth.accounts[0],
+ 'to': init_w3.eth.accounts[1],
+ 'nonce': 42,
+ 'gas': 21000,
+ 'gasPrice': 1000000,
+ 'value': 128,
+ 'chainId': 666,
+ 'data': '',
+ }
+ (tx_hash_hex, tx_raw_signed_hex) = sign_and_register_tx(tx, 'Foo:666', None)
+
+ otx = init_database.query(Otx).filter(Otx.tx_hash==tx_hash_hex).first()
+ otx.sendfail(session=init_database)
+ init_database.add(otx)
+ init_database.commit()
+
+ s = celery.signature(
+ 'cic_eth.eth.tx.check_gas',
+ [
+ [tx_hash_hex],
+ 'Foo:666',
+ [tx_raw_signed_hex],
+ init_w3.eth.accounts[0],
+ 8000000,
+ ],
+ queue=None,
+ )
+ t = s.apply_async()
+ r = t.get()
+ for c in t.collect():
+ pass
+ assert t.successful()
+
+ otx = init_database.query(Otx).filter(Otx.tx_hash==tx_hash_hex).first()
+ assert otx.status == StatusEnum.RETRY.value
diff --git a/apps/cic-eth/tests/tasks/test_token_tasks.py b/apps/cic-eth/tests/tasks/test_token_tasks.py
new file mode 100644
index 00000000..1c5f860d
--- /dev/null
+++ b/apps/cic-eth/tests/tasks/test_token_tasks.py
@@ -0,0 +1,42 @@
+# standard imports
+import logging
+
+# third-party imports
+import celery
+
+# local imports
+from cic_eth.eth.token import TokenTxFactory
+
+
+logg = logging.getLogger()
+
+
+def test_approve(
+ init_rpc,
+ default_chain_spec,
+ celery_session_worker,
+ bancor_tokens,
+ bancor_registry,
+ cic_registry,
+ ):
+
+ s = celery.signature(
+ 'cic_eth.eth.token.approve',
+ [
+ [
+ {
+ 'address': bancor_tokens[0],
+ },
+ ],
+ init_rpc.w3.eth.accounts[0],
+ init_rpc.w3.eth.accounts[1],
+ 1024,
+ str(default_chain_spec),
+ ],
+ )
+ t = s.apply_async()
+ t.get()
+ for r in t.collect():
+ logg.debug('result {}'.format(r))
+
+ assert t.successful()
diff --git a/apps/cic-eth/tests/tasks/test_transfer_approval.py b/apps/cic-eth/tests/tasks/test_transfer_approval.py
new file mode 100644
index 00000000..574cd4c3
--- /dev/null
+++ b/apps/cic-eth/tests/tasks/test_transfer_approval.py
@@ -0,0 +1,76 @@
+# standard imports
+import logging
+import time
+
+# third-party imports
+from erc20_approval_escrow import TransferApproval
+import celery
+import sha3
+
+# local imports
+from cic_eth.eth.token import TokenTxFactory
+
+logg = logging.getLogger()
+
+
+# BUG: transaction receipt only found sometimes
+def test_transfer_approval(
+ default_chain_spec,
+ transfer_approval,
+ bancor_tokens,
+ w3_account_roles,
+ eth_empty_accounts,
+ cic_registry,
+ init_database,
+ celery_session_worker,
+ init_eth_tester,
+ init_w3,
+ ):
+
+ s = celery.signature(
+ 'cic_eth.eth.request.transfer_approval_request',
+ [
+ [
+ {
+ 'address': bancor_tokens[0],
+ },
+ ],
+ w3_account_roles['eth_account_sarafu_owner'],
+ eth_empty_accounts[0],
+ 1024,
+ str(default_chain_spec),
+ ],
+ )
+
+ s_send = celery.signature(
+ 'cic_eth.eth.tx.send',
+ [
+ str(default_chain_spec),
+ ],
+
+ )
+ s.link(s_send)
+ t = s.apply_async()
+
+ tx_signed_raws = t.get()
+ for r in t.collect():
+ logg.debug('result {}'.format(r))
+
+ assert t.successful()
+
+ init_eth_tester.mine_block()
+
+ h = sha3.keccak_256()
+ tx_signed_raw = tx_signed_raws[0]
+ tx_signed_raw_bytes = bytes.fromhex(tx_signed_raw[2:])
+ h.update(tx_signed_raw_bytes)
+ tx_hash = h.digest()
+ rcpt = init_w3.eth.getTransactionReceipt(tx_hash)
+
+ assert rcpt.status == 1
+
+ a = TransferApproval(init_w3, transfer_approval)
+ assert a.last_serial() == 1
+
+ logg.debug('requests {}'.format(a.requests(1)['serial']))
+
diff --git a/apps/cic-eth/tests/tasks/test_tx_tasks.py b/apps/cic-eth/tests/tasks/test_tx_tasks.py
new file mode 100644
index 00000000..82f5a18b
--- /dev/null
+++ b/apps/cic-eth/tests/tasks/test_tx_tasks.py
@@ -0,0 +1,168 @@
+# standard imports
+import logging
+import os
+
+# third-party imports
+import celery
+import pytest
+
+# local imports
+import cic_eth
+from cic_eth.db.models.lock import Lock
+from cic_eth.db.enum import StatusEnum
+from cic_eth.db.enum import LockEnum
+from cic_eth.error import LockedError
+from cic_eth.queue.tx import create as queue_create
+from cic_eth.queue.tx import set_sent_status
+from cic_eth.eth.tx import cache_gas_refill_data
+from cic_eth.error import PermanentTxError
+from cic_eth.queue.tx import get_tx
+from cic_eth.eth.task import sign_tx
+
+logg = logging.getLogger()
+
+
+# TODO: There is no
+def test_send_reject(
+ default_chain_spec,
+ init_w3,
+ mocker,
+ init_database,
+ celery_session_worker,
+ ):
+
+ nonce = init_w3.eth.getTransactionCount(init_w3.eth.accounts[0], 'pending')
+ tx = {
+ 'from': init_w3.eth.accounts[0],
+ 'to': init_w3.eth.accounts[1],
+ 'nonce': nonce,
+ 'gas': 21000,
+ 'gasPrice': 1000000,
+ 'value': 128,
+ 'chainId': default_chain_spec.chain_id(),
+ 'data': '',
+ }
+
+ chain_str = str(default_chain_spec)
+
+ (tx_hash_hex, tx_signed_raw_hex) = sign_tx(tx, chain_str)
+ queue_create(tx['nonce'], tx['from'], tx_hash_hex, tx_signed_raw_hex, str(default_chain_spec))
+ cache_gas_refill_data(tx_hash_hex, tx)
+ s = celery.signature(
+ 'cic_eth.eth.tx.send',
+ [
+ [tx_signed_raw_hex],
+ chain_str,
+ ],
+ )
+ t = s.apply_async()
+ r = t.get()
+
+
+def test_sync_tx(
+ default_chain_spec,
+ init_database,
+ init_w3,
+ init_wallet_extension,
+ init_eth_tester,
+ celery_session_worker,
+ eth_empty_accounts,
+ ):
+
+ nonce = init_w3.eth.getTransactionCount(init_w3.eth.accounts[0], 'pending')
+ tx = {
+ 'from': init_w3.eth.accounts[0],
+ 'to': init_w3.eth.accounts[1],
+ 'nonce': nonce,
+ 'gas': 21000,
+ 'gasPrice': 1000000,
+ 'value': 128,
+ 'chainId': default_chain_spec.chain_id(),
+ 'data': '',
+ }
+
+ chain_str = str(default_chain_spec)
+
+ (tx_hash_hex, tx_signed_raw_hex) = sign_tx(tx, chain_str)
+ queue_create(tx['nonce'], tx['from'], tx_hash_hex, tx_signed_raw_hex, str(default_chain_spec))
+ cache_gas_refill_data(tx_hash_hex, tx)
+
+ init_w3.eth.send_raw_transaction(tx_signed_raw_hex)
+
+ s = celery.signature(
+ 'cic_eth.eth.tx.sync_tx',
+ [
+ tx_hash_hex,
+ chain_str,
+ ],
+ queue=None
+ )
+ t = s.apply_async()
+ r = t.get()
+ for _ in t.collect():
+ pass
+ assert t.successful()
+
+ tx_dict = get_tx(tx_hash_hex)
+ assert tx_dict['status'] == StatusEnum.SENT
+
+ init_eth_tester.mine_block()
+
+ s = celery.signature(
+ 'cic_eth.eth.tx.sync_tx',
+ [
+ tx_hash_hex,
+ chain_str,
+ ],
+ queue=None
+ )
+ t = s.apply_async()
+ r = t.get()
+ for _ in t.collect():
+ pass
+ assert t.successful()
+
+ tx_dict = get_tx(tx_hash_hex)
+ assert tx_dict['status'] == StatusEnum.SUCCESS
+
+
+
+def test_resume_tx(
+ default_chain_spec,
+ init_database,
+ init_w3,
+ celery_session_worker,
+ ):
+
+ tx = {
+ 'from': init_w3.eth.accounts[0],
+ 'to': init_w3.eth.accounts[1],
+ 'nonce': 42 ,
+ 'gas': 21000,
+ 'gasPrice': 1000000,
+ 'value': 128,
+ 'chainId': default_chain_spec.chain_id(),
+ 'data': '',
+ }
+ tx_signed = init_w3.eth.sign_transaction(tx)
+ tx_hash = init_w3.keccak(hexstr=tx_signed['raw'])
+ tx_hash_hex = tx_hash.hex()
+ queue_create(tx['nonce'], tx['from'], tx_hash_hex, tx_signed['raw'], str(default_chain_spec))
+ cache_gas_refill_data(tx_hash_hex, tx)
+
+ set_sent_status(tx_hash_hex, True)
+
+ s = celery.signature(
+ 'cic_eth.eth.tx.resume_tx',
+ [
+ tx_hash_hex,
+ str(default_chain_spec),
+ ],
+ )
+ t = s.apply_async()
+ t.get()
+ for r in t.collect():
+ logg.debug('collect {}'.format(r))
+ assert t.successful()
+
+
diff --git a/apps/cic-eth/tests/test_basic.py b/apps/cic-eth/tests/test_basic.py
new file mode 100644
index 00000000..6c3bde7e
--- /dev/null
+++ b/apps/cic-eth/tests/test_basic.py
@@ -0,0 +1,10 @@
+
+def test_default(
+ init_database,
+ ):
+ pass
+
+def test_w3(
+ init_w3,
+ ):
+ a = init_w3.eth.accounts[0]
diff --git a/apps/cic-eth/tests/test_sign.py b/apps/cic-eth/tests/test_sign.py
new file mode 100644
index 00000000..57897e65
--- /dev/null
+++ b/apps/cic-eth/tests/test_sign.py
@@ -0,0 +1,27 @@
+# standard imports
+import logging
+import sha3
+
+# third-party imports
+import pytest
+
+logg = logging.getLogger()
+
+
+def test_sign(
+ init_w3,
+ init_eth_tester,
+ ):
+ nonce = init_w3.eth.getTransactionCount(init_w3.eth.accounts[0], 'pending')
+ tx = init_w3.eth.sign_transaction({
+ 'from': init_w3.eth.accounts[0],
+ 'to': init_w3.eth.accounts[1],
+ 'nonce': nonce,
+ 'value': 101,
+ 'gasPrice': 2000000000,
+ 'gas': 21000,
+ 'data': '',
+ 'chainId': 8995,
+ })
+ tx_hash = init_w3.eth.send_raw_transaction(tx['raw'])
+ logg.debug('have tx {}'.format(tx_hash))
diff --git a/apps/cic-eth/tests/testdata/abi/AccountRegistry.json b/apps/cic-eth/tests/testdata/abi/AccountRegistry.json
new file mode 100644
index 00000000..59de177f
--- /dev/null
+++ b/apps/cic-eth/tests/testdata/abi/AccountRegistry.json
@@ -0,0 +1 @@
+[{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"addedAccount","type":"address"},{"indexed":true,"internalType":"uint256","name":"accountIndex","type":"uint256"}],"name":"AccountAdded","type":"event"},{"inputs":[{"internalType":"uint256","name":"_idx","type":"uint256"}],"name":"accounts","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_account","type":"address"}],"name":"accountsIndex","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_account","type":"address"}],"name":"add","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_writer","type":"address"}],"name":"addWriter","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"count","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_writer","type":"address"}],"name":"deleteWriter","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_account","type":"address"}],"name":"have","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"}]
diff --git a/apps/cic-eth/tests/testdata/abi/Converter.json b/apps/cic-eth/tests/testdata/abi/Converter.json
new file mode 100644
index 00000000..89c75dd9
--- /dev/null
+++ b/apps/cic-eth/tests/testdata/abi/Converter.json
@@ -0,0 +1 @@
+[{"inputs":[],"name":"acceptOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_reserveToken","type":"address"}],"name":"reserveBalance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"reserveRatio","outputs":[{"internalType":"uint32","name":"","type":"uint32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"reserveTokenCount","outputs":[{"internalType":"uint16","name":"","type":"uint16"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"reserveTokens","outputs":[{"internalType":"address[]","name":"","type":"address[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_reserveToken","type":"address"}],"name":"reserveWeight","outputs":[{"internalType":"uint32","name":"","type":"uint32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint32","name":"_conversionFee","type":"uint32"}],"name":"setConversionFee","outputs":[],"stateMutability":"nonpayable","type":"function"}]
diff --git a/apps/cic-eth/tests/testdata/abi/ConverterRegistry.json b/apps/cic-eth/tests/testdata/abi/ConverterRegistry.json
new file mode 100644
index 00000000..b405748a
--- /dev/null
+++ b/apps/cic-eth/tests/testdata/abi/ConverterRegistry.json
@@ -0,0 +1 @@
+[{"inputs":[],"name":"getConvertibleTokens","outputs":[{"internalType":"address[]","name":"","type":"address[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint16","name":"_type","type":"uint16"},{"internalType":"string","name":"_name","type":"string"},{"internalType":"string","name":"_symbol","type":"string"},{"internalType":"uint8","name":"_decimals","type":"uint8"},{"internalType":"uint32","name":"_maxConversionFee","type":"uint32"},{"internalType":"address[]","name":"_reserveTokens","type":"address[]"},{"internalType":"uint32[]","name":"_reserveWeights","type":"uint32[]"}],"name":"newConverter","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"nonpayable","type":"function"}]
diff --git a/apps/cic-eth/tests/testdata/abi/ERC20.json b/apps/cic-eth/tests/testdata/abi/ERC20.json
new file mode 100644
index 00000000..d50ea47a
--- /dev/null
+++ b/apps/cic-eth/tests/testdata/abi/ERC20.json
@@ -0,0 +1 @@
+[{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_owner","type":"address"},{"indexed":true,"internalType":"address","name":"_spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"_value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_from","type":"address"},{"indexed":true,"internalType":"address","name":"_to","type":"address"},{"indexed":false,"internalType":"uint256","name":"_value","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[{"internalType":"address","name":"_owner","type":"address"},{"internalType":"address","name":"_spender","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_spender","type":"address"},{"internalType":"uint256","name":"_value","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_value","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_from","type":"address"},{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_value","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"}]
diff --git a/apps/cic-eth/tests/testdata/abi/Faucet.json b/apps/cic-eth/tests/testdata/abi/Faucet.json
new file mode 100644
index 00000000..0c437e69
--- /dev/null
+++ b/apps/cic-eth/tests/testdata/abi/Faucet.json
@@ -0,0 +1 @@
+[{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_recipient","type":"address"},{"indexed":true,"internalType":"address","name":"_token","type":"address"},{"indexed":false,"internalType":"uint256","name":"_value","type":"uint256"}],"name":"FaucetFail","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_recipient","type":"address"},{"indexed":true,"internalType":"address","name":"_token","type":"address"},{"indexed":false,"internalType":"uint256","name":"_value","type":"uint256"}],"name":"FaucetUsed","type":"event"},{"inputs":[],"name":"amount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_recipient","type":"address"}],"name":"giveTo","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"setAmount","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"token","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"}]
diff --git a/apps/cic-eth/tests/testdata/abi/Network.json b/apps/cic-eth/tests/testdata/abi/Network.json
new file mode 100644
index 00000000..68e237a4
--- /dev/null
+++ b/apps/cic-eth/tests/testdata/abi/Network.json
@@ -0,0 +1 @@
+[{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_smartToken","type":"address"},{"indexed":true,"internalType":"address","name":"_fromToken","type":"address"},{"indexed":true,"internalType":"address","name":"_toToken","type":"address"},{"indexed":false,"internalType":"uint256","name":"_fromAmount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"_toAmount","type":"uint256"},{"indexed":false,"internalType":"address","name":"_trader","type":"address"}],"name":"Conversion","type":"event"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"convert","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"uint256","name":"","type":"uint256"}],"name":"rateByPath","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"}]
diff --git a/apps/cic-eth/tests/testdata/abi/Registry.json b/apps/cic-eth/tests/testdata/abi/Registry.json
new file mode 100644
index 00000000..aa058777
--- /dev/null
+++ b/apps/cic-eth/tests/testdata/abi/Registry.json
@@ -0,0 +1 @@
+[{"inputs":[{"internalType":"bytes32","name":"_identifier","type":"bytes32"}],"name":"chainOf","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"_chain","type":"bytes32"}],"name":"configSumOf","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"identifiers","outputs":[{"internalType":"bytes32[]","name":"","type":"bytes32[]"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"seal","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"_identifier","type":"bytes32"},{"internalType":"address","name":"_address","type":"address"},{"internalType":"bytes32","name":"_chainDescriptor","type":"bytes32"},{"internalType":"bytes32","name":"_chainConfig","type":"bytes32"}],"name":"set","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"}]
diff --git a/apps/cic-eth/tests/testdata/abi/RegistryClient.json b/apps/cic-eth/tests/testdata/abi/RegistryClient.json
new file mode 100644
index 00000000..2b3baa8a
--- /dev/null
+++ b/apps/cic-eth/tests/testdata/abi/RegistryClient.json
@@ -0,0 +1 @@
+[{"inputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"name":"addressOf","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"}]
diff --git a/apps/cic-eth/tests/testdata/abi/TransferApproval.json b/apps/cic-eth/tests/testdata/abi/TransferApproval.json
new file mode 100644
index 00000000..dcbf2d68
--- /dev/null
+++ b/apps/cic-eth/tests/testdata/abi/TransferApproval.json
@@ -0,0 +1 @@
+[{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"serial","type":"uint256"}],"name":"NewExecution","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"serial","type":"uint256"}],"name":"NewRejection","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_sender","type":"address"},{"indexed":true,"internalType":"address","name":"_recipient","type":"address"},{"indexed":true,"internalType":"address","name":"_token","type":"address"},{"indexed":false,"internalType":"uint256","name":"_value","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"_serial","type":"uint256"}],"name":"NewRequest","type":"event"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"approvers","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_serial","type":"uint256"}],"name":"execute","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_serial","type":"uint256"}],"name":"reject","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_recipient","type":"address"},{"internalType":"address","name":"_token","type":"address"},{"internalType":"uint256","name":"_value","type":"uint256"}],"name":"request","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"requests","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"serial","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"}]
diff --git a/apps/cic-eth/tests/testdata/bancor/BancorFormula.json b/apps/cic-eth/tests/testdata/bancor/BancorFormula.json
new file mode 100644
index 00000000..460e0089
--- /dev/null
+++ b/apps/cic-eth/tests/testdata/bancor/BancorFormula.json
@@ -0,0 +1,151530 @@
+{
+ "contractName": "BancorFormula",
+ "abi": [
+ {
+ "inputs": [],
+ "name": "init",
+ "outputs": [],
+ "stateMutability": "nonpayable",
+ "type": "function"
+ },
+ {
+ "inputs": [
+ {
+ "internalType": "uint256",
+ "name": "_supply",
+ "type": "uint256"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_reserveBalance",
+ "type": "uint256"
+ },
+ {
+ "internalType": "uint32",
+ "name": "_reserveWeight",
+ "type": "uint32"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_amount",
+ "type": "uint256"
+ }
+ ],
+ "name": "purchaseTargetAmount",
+ "outputs": [
+ {
+ "internalType": "uint256",
+ "name": "",
+ "type": "uint256"
+ }
+ ],
+ "stateMutability": "view",
+ "type": "function",
+ "constant": true
+ },
+ {
+ "inputs": [
+ {
+ "internalType": "uint256",
+ "name": "_supply",
+ "type": "uint256"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_reserveBalance",
+ "type": "uint256"
+ },
+ {
+ "internalType": "uint32",
+ "name": "_reserveWeight",
+ "type": "uint32"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_amount",
+ "type": "uint256"
+ }
+ ],
+ "name": "saleTargetAmount",
+ "outputs": [
+ {
+ "internalType": "uint256",
+ "name": "",
+ "type": "uint256"
+ }
+ ],
+ "stateMutability": "view",
+ "type": "function",
+ "constant": true
+ },
+ {
+ "inputs": [
+ {
+ "internalType": "uint256",
+ "name": "_sourceReserveBalance",
+ "type": "uint256"
+ },
+ {
+ "internalType": "uint32",
+ "name": "_sourceReserveWeight",
+ "type": "uint32"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_targetReserveBalance",
+ "type": "uint256"
+ },
+ {
+ "internalType": "uint32",
+ "name": "_targetReserveWeight",
+ "type": "uint32"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_amount",
+ "type": "uint256"
+ }
+ ],
+ "name": "crossReserveTargetAmount",
+ "outputs": [
+ {
+ "internalType": "uint256",
+ "name": "",
+ "type": "uint256"
+ }
+ ],
+ "stateMutability": "view",
+ "type": "function",
+ "constant": true
+ },
+ {
+ "inputs": [
+ {
+ "internalType": "uint256",
+ "name": "_supply",
+ "type": "uint256"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_reserveBalance",
+ "type": "uint256"
+ },
+ {
+ "internalType": "uint32",
+ "name": "_reserveRatio",
+ "type": "uint32"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_amount",
+ "type": "uint256"
+ }
+ ],
+ "name": "fundCost",
+ "outputs": [
+ {
+ "internalType": "uint256",
+ "name": "",
+ "type": "uint256"
+ }
+ ],
+ "stateMutability": "view",
+ "type": "function",
+ "constant": true
+ },
+ {
+ "inputs": [
+ {
+ "internalType": "uint256",
+ "name": "_supply",
+ "type": "uint256"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_reserveBalance",
+ "type": "uint256"
+ },
+ {
+ "internalType": "uint32",
+ "name": "_reserveRatio",
+ "type": "uint32"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_amount",
+ "type": "uint256"
+ }
+ ],
+ "name": "fundSupplyAmount",
+ "outputs": [
+ {
+ "internalType": "uint256",
+ "name": "",
+ "type": "uint256"
+ }
+ ],
+ "stateMutability": "view",
+ "type": "function",
+ "constant": true
+ },
+ {
+ "inputs": [
+ {
+ "internalType": "uint256",
+ "name": "_supply",
+ "type": "uint256"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_reserveBalance",
+ "type": "uint256"
+ },
+ {
+ "internalType": "uint32",
+ "name": "_reserveRatio",
+ "type": "uint32"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_amount",
+ "type": "uint256"
+ }
+ ],
+ "name": "liquidateReserveAmount",
+ "outputs": [
+ {
+ "internalType": "uint256",
+ "name": "",
+ "type": "uint256"
+ }
+ ],
+ "stateMutability": "view",
+ "type": "function",
+ "constant": true
+ },
+ {
+ "inputs": [
+ {
+ "internalType": "uint256",
+ "name": "_primaryReserveStakedBalance",
+ "type": "uint256"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_primaryReserveBalance",
+ "type": "uint256"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_secondaryReserveBalance",
+ "type": "uint256"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_reserveRateNumerator",
+ "type": "uint256"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_reserveRateDenominator",
+ "type": "uint256"
+ }
+ ],
+ "name": "balancedWeights",
+ "outputs": [
+ {
+ "internalType": "uint32",
+ "name": "",
+ "type": "uint32"
+ },
+ {
+ "internalType": "uint32",
+ "name": "",
+ "type": "uint32"
+ }
+ ],
+ "stateMutability": "view",
+ "type": "function",
+ "constant": true
+ },
+ {
+ "inputs": [
+ {
+ "internalType": "uint256",
+ "name": "_supply",
+ "type": "uint256"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_reserveBalance",
+ "type": "uint256"
+ },
+ {
+ "internalType": "uint32",
+ "name": "_reserveWeight",
+ "type": "uint32"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_amount",
+ "type": "uint256"
+ }
+ ],
+ "name": "calculatePurchaseReturn",
+ "outputs": [
+ {
+ "internalType": "uint256",
+ "name": "",
+ "type": "uint256"
+ }
+ ],
+ "stateMutability": "view",
+ "type": "function",
+ "constant": true
+ },
+ {
+ "inputs": [
+ {
+ "internalType": "uint256",
+ "name": "_supply",
+ "type": "uint256"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_reserveBalance",
+ "type": "uint256"
+ },
+ {
+ "internalType": "uint32",
+ "name": "_reserveWeight",
+ "type": "uint32"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_amount",
+ "type": "uint256"
+ }
+ ],
+ "name": "calculateSaleReturn",
+ "outputs": [
+ {
+ "internalType": "uint256",
+ "name": "",
+ "type": "uint256"
+ }
+ ],
+ "stateMutability": "view",
+ "type": "function",
+ "constant": true
+ },
+ {
+ "inputs": [
+ {
+ "internalType": "uint256",
+ "name": "_sourceReserveBalance",
+ "type": "uint256"
+ },
+ {
+ "internalType": "uint32",
+ "name": "_sourceReserveWeight",
+ "type": "uint32"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_targetReserveBalance",
+ "type": "uint256"
+ },
+ {
+ "internalType": "uint32",
+ "name": "_targetReserveWeight",
+ "type": "uint32"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_amount",
+ "type": "uint256"
+ }
+ ],
+ "name": "calculateCrossReserveReturn",
+ "outputs": [
+ {
+ "internalType": "uint256",
+ "name": "",
+ "type": "uint256"
+ }
+ ],
+ "stateMutability": "view",
+ "type": "function",
+ "constant": true
+ },
+ {
+ "inputs": [
+ {
+ "internalType": "uint256",
+ "name": "_sourceReserveBalance",
+ "type": "uint256"
+ },
+ {
+ "internalType": "uint32",
+ "name": "_sourceReserveWeight",
+ "type": "uint32"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_targetReserveBalance",
+ "type": "uint256"
+ },
+ {
+ "internalType": "uint32",
+ "name": "_targetReserveWeight",
+ "type": "uint32"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_amount",
+ "type": "uint256"
+ }
+ ],
+ "name": "calculateCrossConnectorReturn",
+ "outputs": [
+ {
+ "internalType": "uint256",
+ "name": "",
+ "type": "uint256"
+ }
+ ],
+ "stateMutability": "view",
+ "type": "function",
+ "constant": true
+ },
+ {
+ "inputs": [
+ {
+ "internalType": "uint256",
+ "name": "_supply",
+ "type": "uint256"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_reserveBalance",
+ "type": "uint256"
+ },
+ {
+ "internalType": "uint32",
+ "name": "_reserveRatio",
+ "type": "uint32"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_amount",
+ "type": "uint256"
+ }
+ ],
+ "name": "calculateFundCost",
+ "outputs": [
+ {
+ "internalType": "uint256",
+ "name": "",
+ "type": "uint256"
+ }
+ ],
+ "stateMutability": "view",
+ "type": "function",
+ "constant": true
+ },
+ {
+ "inputs": [
+ {
+ "internalType": "uint256",
+ "name": "_supply",
+ "type": "uint256"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_reserveBalance",
+ "type": "uint256"
+ },
+ {
+ "internalType": "uint32",
+ "name": "_reserveRatio",
+ "type": "uint32"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_amount",
+ "type": "uint256"
+ }
+ ],
+ "name": "calculateLiquidateReturn",
+ "outputs": [
+ {
+ "internalType": "uint256",
+ "name": "",
+ "type": "uint256"
+ }
+ ],
+ "stateMutability": "view",
+ "type": "function",
+ "constant": true
+ },
+ {
+ "inputs": [
+ {
+ "internalType": "uint256",
+ "name": "_supply",
+ "type": "uint256"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_reserveBalance",
+ "type": "uint256"
+ },
+ {
+ "internalType": "uint32",
+ "name": "_reserveWeight",
+ "type": "uint32"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_amount",
+ "type": "uint256"
+ }
+ ],
+ "name": "purchaseRate",
+ "outputs": [
+ {
+ "internalType": "uint256",
+ "name": "",
+ "type": "uint256"
+ }
+ ],
+ "stateMutability": "view",
+ "type": "function",
+ "constant": true
+ },
+ {
+ "inputs": [
+ {
+ "internalType": "uint256",
+ "name": "_supply",
+ "type": "uint256"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_reserveBalance",
+ "type": "uint256"
+ },
+ {
+ "internalType": "uint32",
+ "name": "_reserveWeight",
+ "type": "uint32"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_amount",
+ "type": "uint256"
+ }
+ ],
+ "name": "saleRate",
+ "outputs": [
+ {
+ "internalType": "uint256",
+ "name": "",
+ "type": "uint256"
+ }
+ ],
+ "stateMutability": "view",
+ "type": "function",
+ "constant": true
+ },
+ {
+ "inputs": [
+ {
+ "internalType": "uint256",
+ "name": "_sourceReserveBalance",
+ "type": "uint256"
+ },
+ {
+ "internalType": "uint32",
+ "name": "_sourceReserveWeight",
+ "type": "uint32"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_targetReserveBalance",
+ "type": "uint256"
+ },
+ {
+ "internalType": "uint32",
+ "name": "_targetReserveWeight",
+ "type": "uint32"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_amount",
+ "type": "uint256"
+ }
+ ],
+ "name": "crossReserveRate",
+ "outputs": [
+ {
+ "internalType": "uint256",
+ "name": "",
+ "type": "uint256"
+ }
+ ],
+ "stateMutability": "view",
+ "type": "function",
+ "constant": true
+ },
+ {
+ "inputs": [
+ {
+ "internalType": "uint256",
+ "name": "_supply",
+ "type": "uint256"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_reserveBalance",
+ "type": "uint256"
+ },
+ {
+ "internalType": "uint32",
+ "name": "_reserveRatio",
+ "type": "uint32"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_amount",
+ "type": "uint256"
+ }
+ ],
+ "name": "liquidateRate",
+ "outputs": [
+ {
+ "internalType": "uint256",
+ "name": "",
+ "type": "uint256"
+ }
+ ],
+ "stateMutability": "view",
+ "type": "function",
+ "constant": true
+ }
+ ],
+ "metadata": 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arbitrage incentive is to convert to the point where the on-chain price is equal to the off-chain price. We want this operation to also impact the primary reserve balance becoming equal to the primary reserve staked balance. In other words, we want the arbitrager to convert the difference between the reserve balance and the reserve staked balance. Formula input: - let t denote the primary reserve token staked balance - let s denote the primary reserve token balance - let r denote the secondary reserve token balance - let q denote the numerator of the rate between the tokens - let p denote the denominator of the rate between the tokens Where p primary tokens are equal to q secondary tokens Formula output: - compute x = W(t / r * q / p * log(s / t)) / log(s / t) - return x / (1 + x) as the weight of the primary reserve token - return 1 / (1 + x) as the weight of the secondary reserve token Where W is the Lambert W Function If the rate-provider provides the rates for a common unit, for example: - P = 2 ==> 2 primary reserve tokens = 1 ether - Q = 3 ==> 3 secondary reserve tokens = 1 ether Then you can simply use p = P and q = Q If the rate-provider provides the rates for a single unit, for example: - P = 2 ==> 1 primary reserve token = 2 ethers - Q = 3 ==> 1 secondary reserve token = 3 ethers Then you can simply use p = Q and q = P\",\"params\":{\"_primaryReserveBalance\":\"the primary reserve token balance\",\"_primaryReserveStakedBalance\":\"the primary reserve token staked balance\",\"_reserveRateDenominator\":\"the denominator of the rate between the tokens Note that `numerator / denominator` should represent the amount of secondary tokens equal to one primary token\",\"_reserveRateNumerator\":\"the numerator of the rate between the tokens\",\"_secondaryReserveBalance\":\"the secondary reserve token balance\"},\"returns\":{\"_0\":\"the weight of the primary reserve token and the weight of the secondary reserve token, both in ppm (0-1000000)\"}},\"calculateCrossConnectorReturn(uint256,uint32,uint256,uint32,uint256)\":{\"details\":\"deprecated, backward compatibility\"},\"calculateCrossReserveReturn(uint256,uint32,uint256,uint32,uint256)\":{\"details\":\"deprecated, backward compatibility\"},\"calculateFundCost(uint256,uint256,uint32,uint256)\":{\"details\":\"deprecated, backward compatibility\"},\"calculateLiquidateReturn(uint256,uint256,uint32,uint256)\":{\"details\":\"deprecated, backward compatibility\"},\"calculatePurchaseReturn(uint256,uint256,uint32,uint256)\":{\"details\":\"deprecated, backward compatibility\"},\"calculateSaleReturn(uint256,uint256,uint32,uint256)\":{\"details\":\"deprecated, backward compatibility\"},\"crossReserveRate(uint256,uint32,uint256,uint32,uint256)\":{\"details\":\"deprecated, backward compatibility\"},\"crossReserveTargetAmount(uint256,uint32,uint256,uint32,uint256)\":{\"details\":\"given two reserve balances/weights and a sell amount (in the first reserve token), calculates the target amount for a conversion from the source reserve token to the target reserve token Formula: return = _targetReserveBalance * (1 - (_sourceReserveBalance / (_sourceReserveBalance + _amount)) ^ (_sourceReserveWeight / _targetReserveWeight))\",\"params\":{\"_amount\":\"source reserve amount\",\"_sourceReserveBalance\":\"source reserve balance\",\"_sourceReserveWeight\":\"source reserve weight, represented in ppm (1-1000000)\",\"_targetReserveBalance\":\"target reserve balance\",\"_targetReserveWeight\":\"target reserve weight, represented in ppm (1-1000000)\"},\"returns\":{\"_0\":\"target reserve amount\"}},\"fundCost(uint256,uint256,uint32,uint256)\":{\"details\":\"given a smart token supply, reserve balance, reserve ratio and an amount of requested smart tokens, calculates the amount of reserve tokens required for purchasing the given amount of smart tokens Formula: return = _reserveBalance * (((_supply + _amount) / _supply) ^ (MAX_WEIGHT / _reserveRatio) - 1)\",\"params\":{\"_amount\":\"requested amount of smart tokens\",\"_reserveBalance\":\"reserve balance\",\"_reserveRatio\":\"reserve ratio, represented in ppm (2-2000000)\",\"_supply\":\"smart token supply\"},\"returns\":{\"_0\":\"reserve token amount\"}},\"fundSupplyAmount(uint256,uint256,uint32,uint256)\":{\"details\":\"given a smart token supply, reserve balance, reserve ratio and an amount of reserve tokens to fund with, calculates the amount of smart tokens received for purchasing with the given amount of reserve tokens Formula: return = _supply * ((_amount / _reserveBalance + 1) ^ (_reserveRatio / MAX_WEIGHT) - 1)\",\"params\":{\"_amount\":\"amount of reserve tokens to fund with\",\"_reserveBalance\":\"reserve balance\",\"_reserveRatio\":\"reserve ratio, represented in ppm (2-2000000)\",\"_supply\":\"smart token supply\"},\"returns\":{\"_0\":\"smart token amount\"}},\"init()\":{\"details\":\"should be executed after construction (too large for the constructor)\"},\"liquidateRate(uint256,uint256,uint32,uint256)\":{\"details\":\"deprecated, backward compatibility\"},\"liquidateReserveAmount(uint256,uint256,uint32,uint256)\":{\"details\":\"given a smart token supply, reserve balance, reserve ratio and an amount of smart tokens to liquidate, calculates the amount of reserve tokens received for selling the given amount of smart tokens Formula: return = _reserveBalance * (1 - ((_supply - _amount) / _supply) ^ (MAX_WEIGHT / _reserveRatio))\",\"params\":{\"_amount\":\"amount of smart tokens to liquidate\",\"_reserveBalance\":\"reserve balance\",\"_reserveRatio\":\"reserve ratio, represented in ppm (2-2000000)\",\"_supply\":\"smart token supply\"},\"returns\":{\"_0\":\"reserve token amount\"}},\"purchaseRate(uint256,uint256,uint32,uint256)\":{\"details\":\"deprecated, backward compatibility\"},\"purchaseTargetAmount(uint256,uint256,uint32,uint256)\":{\"details\":\"given a token supply, reserve balance, weight and a deposit amount (in the reserve token), calculates the target amount for a given conversion (in the main token) Formula: return = _supply * ((1 + _amount / _reserveBalance) ^ (_reserveWeight / 1000000) - 1)\",\"params\":{\"_amount\":\"amount of reserve tokens to get the target amount for\",\"_reserveBalance\":\"reserve balance\",\"_reserveWeight\":\"reserve weight, represented in ppm (1-1000000)\",\"_supply\":\"smart token supply\"},\"returns\":{\"_0\":\"smart token amount\"}},\"saleRate(uint256,uint256,uint32,uint256)\":{\"details\":\"deprecated, backward compatibility\"},\"saleTargetAmount(uint256,uint256,uint32,uint256)\":{\"details\":\"given a token supply, reserve balance, weight and a sell amount (in the main token), calculates the target amount for a given conversion (in the reserve token) Formula: return = _reserveBalance * (1 - (1 - _amount / _supply) ^ (1000000 / _reserveWeight))\",\"params\":{\"_amount\":\"amount of smart tokens to get the target amount for\",\"_reserveBalance\":\"reserve balance\",\"_reserveWeight\":\"reserve weight, represented in ppm (1-1000000)\",\"_supply\":\"smart token supply\"},\"returns\":{\"_0\":\"reserve token amount\"}}},\"version\":1},\"userdoc\":{\"kind\":\"user\",\"methods\":{},\"version\":1}},\"settings\":{\"compilationTarget\":{\"/home/lash/src/ext/cic/grassrootseconomics/bancor-contracts/solidity/contracts/converter/BancorFormula.sol\":\"BancorFormula\"},\"evmVersion\":\"istanbul\",\"libraries\":{},\"metadata\":{\"bytecodeHash\":\"ipfs\"},\"optimizer\":{\"enabled\":true,\"runs\":200},\"remappings\":[]},\"sources\":{\"/home/lash/src/ext/cic/grassrootseconomics/bancor-contracts/solidity/contracts/converter/BancorFormula.sol\":{\"keccak256\":\"0x24ae54f35c6099ecb1cb077e96ba2a956d4ca344ed65473e04cf8bf52d65b81e\",\"license\":\"SEE LICENSE IN LICENSE\",\"urls\":[\"bzz-raw://59f6e37cc90b585f381faebb13ff42fd18025b3f650bfa59f1c46bc226515d9a\",\"dweb:/ipfs/QmVCFUq8gqtvB1AyjRwuN331e6vR3WZeE75mBdC7p5dZgZ\"]},\"/home/lash/src/ext/cic/grassrootseconomics/bancor-contracts/solidity/contracts/converter/interfaces/IBancorFormula.sol\":{\"keccak256\":\"0xf30c95034af4c4ec6e8a859e90cf7a0bada29a805ede76e04644107a7c677c4e\",\"license\":\"SEE LICENSE IN LICENSE\",\"urls\":[\"bzz-raw://b48070d4abf9c4a08c39e6c494fa9efd7389aa7f8b61b283c9ba02062b1c59b6\",\"dweb:/ipfs/Qme6U7SpspFPzMH2mTyKsXCnJEAgg1vX6NNFzuykbVSY5R\"]},\"/home/lash/src/ext/cic/grassrootseconomics/bancor-contracts/solidity/contracts/utility/SafeMath.sol\":{\"keccak256\":\"0x1ab7391a19ca8a3ad2f3c4a1074e080d4d76dfdb834637bdd0c1e6b6acdf28af\",\"license\":\"SEE LICENSE IN LICENSE\",\"urls\":[\"bzz-raw://d6d8c99621ca884b72da2d84eddfec8ec8c5533915691d6eec94a07adf445608\",\"dweb:/ipfs/QmaXr6DN7VbfxfMn3PsTy7SAMgZVVXbdeaw11BsAjVL2x1\"]}},\"version\":1}",
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+ "source": "// SPDX-License-Identifier: SEE LICENSE IN LICENSE\r\npragma solidity 0.6.12;\r\nimport \"./interfaces/IBancorFormula.sol\";\r\nimport \"../utility/SafeMath.sol\";\r\n\r\ncontract BancorFormula is IBancorFormula {\r\n using SafeMath for uint256;\r\n\r\n uint256 private constant ONE = 1;\r\n uint32 private constant MAX_WEIGHT = 1000000;\r\n uint8 private constant MIN_PRECISION = 32;\r\n uint8 private constant MAX_PRECISION = 127;\r\n\r\n // Auto-generated via 'PrintIntScalingFactors.py'\r\n uint256 private constant FIXED_1 = 0x080000000000000000000000000000000;\r\n uint256 private constant FIXED_2 = 0x100000000000000000000000000000000;\r\n uint256 private constant MAX_NUM = 0x200000000000000000000000000000000;\r\n\r\n // Auto-generated via 'PrintLn2ScalingFactors.py'\r\n uint256 private constant LN2_NUMERATOR = 0x3f80fe03f80fe03f80fe03f80fe03f8;\r\n uint256 private constant LN2_DENOMINATOR = 0x5b9de1d10bf4103d647b0955897ba80;\r\n\r\n // Auto-generated via 'PrintFunctionOptimalLog.py' and 'PrintFunctionOptimalExp.py'\r\n uint256 private constant OPT_LOG_MAX_VAL = 0x15bf0a8b1457695355fb8ac404e7a79e3;\r\n uint256 private constant OPT_EXP_MAX_VAL = 0x800000000000000000000000000000000;\r\n\r\n // Auto-generated via 'PrintLambertFactors.py'\r\n uint256 private constant LAMBERT_CONV_RADIUS = 0x002f16ac6c59de6f8d5d6f63c1482a7c86;\r\n uint256 private constant LAMBERT_POS2_SAMPLE = 0x0003060c183060c183060c183060c18306;\r\n uint256 private constant LAMBERT_POS2_MAXVAL = 0x01af16ac6c59de6f8d5d6f63c1482a7c80;\r\n uint256 private constant LAMBERT_POS3_MAXVAL = 0x6b22d43e72c326539cceeef8bb48f255ff;\r\n\r\n // Auto-generated via 'PrintWeightFactors.py'\r\n uint256 private constant MAX_UNF_WEIGHT = 0x10c6f7a0b5ed8d36b4c7f34938583621fafc8b0079a2834d26fa3fcc9ea9;\r\n\r\n // Auto-generated via 'PrintMaxExpArray.py'\r\n uint256[128] private maxExpArray;\r\n function initMaxExpArray() private {\r\n // maxExpArray[ 0] = 0x6bffffffffffffffffffffffffffffffff;\r\n // maxExpArray[ 1] = 0x67ffffffffffffffffffffffffffffffff;\r\n // maxExpArray[ 2] = 0x637fffffffffffffffffffffffffffffff;\r\n // maxExpArray[ 3] = 0x5f6fffffffffffffffffffffffffffffff;\r\n // maxExpArray[ 4] = 0x5b77ffffffffffffffffffffffffffffff;\r\n // maxExpArray[ 5] = 0x57b3ffffffffffffffffffffffffffffff;\r\n // maxExpArray[ 6] = 0x5419ffffffffffffffffffffffffffffff;\r\n // maxExpArray[ 7] = 0x50a2ffffffffffffffffffffffffffffff;\r\n // maxExpArray[ 8] = 0x4d517fffffffffffffffffffffffffffff;\r\n // maxExpArray[ 9] = 0x4a233fffffffffffffffffffffffffffff;\r\n // maxExpArray[ 10] = 0x47165fffffffffffffffffffffffffffff;\r\n // maxExpArray[ 11] = 0x4429afffffffffffffffffffffffffffff;\r\n // maxExpArray[ 12] = 0x415bc7ffffffffffffffffffffffffffff;\r\n // maxExpArray[ 13] = 0x3eab73ffffffffffffffffffffffffffff;\r\n // maxExpArray[ 14] = 0x3c1771ffffffffffffffffffffffffffff;\r\n // maxExpArray[ 15] = 0x399e96ffffffffffffffffffffffffffff;\r\n // maxExpArray[ 16] = 0x373fc47fffffffffffffffffffffffffff;\r\n // maxExpArray[ 17] = 0x34f9e8ffffffffffffffffffffffffffff;\r\n // maxExpArray[ 18] = 0x32cbfd5fffffffffffffffffffffffffff;\r\n // maxExpArray[ 19] = 0x30b5057fffffffffffffffffffffffffff;\r\n // maxExpArray[ 20] = 0x2eb40f9fffffffffffffffffffffffffff;\r\n // maxExpArray[ 21] = 0x2cc8340fffffffffffffffffffffffffff;\r\n // maxExpArray[ 22] = 0x2af09481ffffffffffffffffffffffffff;\r\n // maxExpArray[ 23] = 0x292c5bddffffffffffffffffffffffffff;\r\n // maxExpArray[ 24] = 0x277abdcdffffffffffffffffffffffffff;\r\n // maxExpArray[ 25] = 0x25daf6657fffffffffffffffffffffffff;\r\n // maxExpArray[ 26] = 0x244c49c65fffffffffffffffffffffffff;\r\n // maxExpArray[ 27] = 0x22ce03cd5fffffffffffffffffffffffff;\r\n // maxExpArray[ 28] = 0x215f77c047ffffffffffffffffffffffff;\r\n // maxExpArray[ 29] = 0x1fffffffffffffffffffffffffffffffff;\r\n // maxExpArray[ 30] = 0x1eaefdbdabffffffffffffffffffffffff;\r\n // maxExpArray[ 31] = 0x1d6bd8b2ebffffffffffffffffffffffff;\r\n maxExpArray[ 32] = 0x1c35fedd14ffffffffffffffffffffffff;\r\n maxExpArray[ 33] = 0x1b0ce43b323fffffffffffffffffffffff;\r\n maxExpArray[ 34] = 0x19f0028ec1ffffffffffffffffffffffff;\r\n maxExpArray[ 35] = 0x18ded91f0e7fffffffffffffffffffffff;\r\n maxExpArray[ 36] = 0x17d8ec7f0417ffffffffffffffffffffff;\r\n maxExpArray[ 37] = 0x16ddc6556cdbffffffffffffffffffffff;\r\n maxExpArray[ 38] = 0x15ecf52776a1ffffffffffffffffffffff;\r\n maxExpArray[ 39] = 0x15060c256cb2ffffffffffffffffffffff;\r\n maxExpArray[ 40] = 0x1428a2f98d72ffffffffffffffffffffff;\r\n maxExpArray[ 41] = 0x13545598e5c23fffffffffffffffffffff;\r\n maxExpArray[ 42] = 0x1288c4161ce1dfffffffffffffffffffff;\r\n maxExpArray[ 43] = 0x11c592761c666fffffffffffffffffffff;\r\n maxExpArray[ 44] = 0x110a688680a757ffffffffffffffffffff;\r\n maxExpArray[ 45] = 0x1056f1b5bedf77ffffffffffffffffffff;\r\n maxExpArray[ 46] = 0x0faadceceeff8bffffffffffffffffffff;\r\n maxExpArray[ 47] = 0x0f05dc6b27edadffffffffffffffffffff;\r\n maxExpArray[ 48] = 0x0e67a5a25da4107fffffffffffffffffff;\r\n maxExpArray[ 49] = 0x0dcff115b14eedffffffffffffffffffff;\r\n maxExpArray[ 50] = 0x0d3e7a392431239fffffffffffffffffff;\r\n maxExpArray[ 51] = 0x0cb2ff529eb71e4fffffffffffffffffff;\r\n maxExpArray[ 52] = 0x0c2d415c3db974afffffffffffffffffff;\r\n maxExpArray[ 53] = 0x0bad03e7d883f69bffffffffffffffffff;\r\n maxExpArray[ 54] = 0x0b320d03b2c343d5ffffffffffffffffff;\r\n maxExpArray[ 55] = 0x0abc25204e02828dffffffffffffffffff;\r\n maxExpArray[ 56] = 0x0a4b16f74ee4bb207fffffffffffffffff;\r\n maxExpArray[ 57] = 0x09deaf736ac1f569ffffffffffffffffff;\r\n maxExpArray[ 58] = 0x0976bd9952c7aa957fffffffffffffffff;\r\n maxExpArray[ 59] = 0x09131271922eaa606fffffffffffffffff;\r\n maxExpArray[ 60] = 0x08b380f3558668c46fffffffffffffffff;\r\n maxExpArray[ 61] = 0x0857ddf0117efa215bffffffffffffffff;\r\n maxExpArray[ 62] = 0x07ffffffffffffffffffffffffffffffff;\r\n maxExpArray[ 63] = 0x07abbf6f6abb9d087fffffffffffffffff;\r\n maxExpArray[ 64] = 0x075af62cbac95f7dfa7fffffffffffffff;\r\n maxExpArray[ 65] = 0x070d7fb7452e187ac13fffffffffffffff;\r\n maxExpArray[ 66] = 0x06c3390ecc8af379295fffffffffffffff;\r\n maxExpArray[ 67] = 0x067c00a3b07ffc01fd6fffffffffffffff;\r\n maxExpArray[ 68] = 0x0637b647c39cbb9d3d27ffffffffffffff;\r\n maxExpArray[ 69] = 0x05f63b1fc104dbd39587ffffffffffffff;\r\n maxExpArray[ 70] = 0x05b771955b36e12f7235ffffffffffffff;\r\n maxExpArray[ 71] = 0x057b3d49dda84556d6f6ffffffffffffff;\r\n maxExpArray[ 72] = 0x054183095b2c8ececf30ffffffffffffff;\r\n maxExpArray[ 73] = 0x050a28be635ca2b888f77fffffffffffff;\r\n maxExpArray[ 74] = 0x04d5156639708c9db33c3fffffffffffff;\r\n maxExpArray[ 75] = 0x04a23105873875bd52dfdfffffffffffff;\r\n maxExpArray[ 76] = 0x0471649d87199aa990756fffffffffffff;\r\n maxExpArray[ 77] = 0x04429a21a029d4c1457cfbffffffffffff;\r\n maxExpArray[ 78] = 0x0415bc6d6fb7dd71af2cb3ffffffffffff;\r\n maxExpArray[ 79] = 0x03eab73b3bbfe282243ce1ffffffffffff;\r\n maxExpArray[ 80] = 0x03c1771ac9fb6b4c18e229ffffffffffff;\r\n maxExpArray[ 81] = 0x0399e96897690418f785257fffffffffff;\r\n maxExpArray[ 82] = 0x0373fc456c53bb779bf0ea9fffffffffff;\r\n maxExpArray[ 83] = 0x034f9e8e490c48e67e6ab8bfffffffffff;\r\n maxExpArray[ 84] = 0x032cbfd4a7adc790560b3337ffffffffff;\r\n maxExpArray[ 85] = 0x030b50570f6e5d2acca94613ffffffffff;\r\n maxExpArray[ 86] = 0x02eb40f9f620fda6b56c2861ffffffffff;\r\n maxExpArray[ 87] = 0x02cc8340ecb0d0f520a6af58ffffffffff;\r\n maxExpArray[ 88] = 0x02af09481380a0a35cf1ba02ffffffffff;\r\n maxExpArray[ 89] = 0x0292c5bdd3b92ec810287b1b3fffffffff;\r\n maxExpArray[ 90] = 0x0277abdcdab07d5a77ac6d6b9fffffffff;\r\n maxExpArray[ 91] = 0x025daf6654b1eaa55fd64df5efffffffff;\r\n maxExpArray[ 92] = 0x0244c49c648baa98192dce88b7ffffffff;\r\n maxExpArray[ 93] = 0x022ce03cd5619a311b2471268bffffffff;\r\n maxExpArray[ 94] = 0x0215f77c045fbe885654a44a0fffffffff;\r\n maxExpArray[ 95] = 0x01ffffffffffffffffffffffffffffffff;\r\n maxExpArray[ 96] = 0x01eaefdbdaaee7421fc4d3ede5ffffffff;\r\n maxExpArray[ 97] = 0x01d6bd8b2eb257df7e8ca57b09bfffffff;\r\n maxExpArray[ 98] = 0x01c35fedd14b861eb0443f7f133fffffff;\r\n maxExpArray[ 99] = 0x01b0ce43b322bcde4a56e8ada5afffffff;\r\n maxExpArray[100] = 0x019f0028ec1fff007f5a195a39dfffffff;\r\n maxExpArray[101] = 0x018ded91f0e72ee74f49b15ba527ffffff;\r\n maxExpArray[102] = 0x017d8ec7f04136f4e5615fd41a63ffffff;\r\n maxExpArray[103] = 0x016ddc6556cdb84bdc8d12d22e6fffffff;\r\n maxExpArray[104] = 0x015ecf52776a1155b5bd8395814f7fffff;\r\n maxExpArray[105] = 0x015060c256cb23b3b3cc3754cf40ffffff;\r\n maxExpArray[106] = 0x01428a2f98d728ae223ddab715be3fffff;\r\n maxExpArray[107] = 0x013545598e5c23276ccf0ede68034fffff;\r\n maxExpArray[108] = 0x01288c4161ce1d6f54b7f61081194fffff;\r\n maxExpArray[109] = 0x011c592761c666aa641d5a01a40f17ffff;\r\n maxExpArray[110] = 0x0110a688680a7530515f3e6e6cfdcdffff;\r\n maxExpArray[111] = 0x01056f1b5bedf75c6bcb2ce8aed428ffff;\r\n maxExpArray[112] = 0x00faadceceeff8a0890f3875f008277fff;\r\n maxExpArray[113] = 0x00f05dc6b27edad306388a600f6ba0bfff;\r\n maxExpArray[114] = 0x00e67a5a25da41063de1495d5b18cdbfff;\r\n maxExpArray[115] = 0x00dcff115b14eedde6fc3aa5353f2e4fff;\r\n maxExpArray[116] = 0x00d3e7a3924312399f9aae2e0f868f8fff;\r\n maxExpArray[117] = 0x00cb2ff529eb71e41582cccd5a1ee26fff;\r\n maxExpArray[118] = 0x00c2d415c3db974ab32a51840c0b67edff;\r\n maxExpArray[119] = 0x00bad03e7d883f69ad5b0a186184e06bff;\r\n maxExpArray[120] = 0x00b320d03b2c343d4829abd6075f0cc5ff;\r\n maxExpArray[121] = 0x00abc25204e02828d73c6e80bcdb1a95bf;\r\n maxExpArray[122] = 0x00a4b16f74ee4bb2040a1ec6c15fbbf2df;\r\n maxExpArray[123] = 0x009deaf736ac1f569deb1b5ae3f36c130f;\r\n maxExpArray[124] = 0x00976bd9952c7aa957f5937d790ef65037;\r\n maxExpArray[125] = 0x009131271922eaa6064b73a22d0bd4f2bf;\r\n maxExpArray[126] = 0x008b380f3558668c46c91c49a2f8e967b9;\r\n maxExpArray[127] = 0x00857ddf0117efa215952912839f6473e6;\r\n }\r\n\r\n // Auto-generated via 'PrintLambertArray.py'\r\n uint256[128] private lambertArray;\r\n function initLambertArray() private {\r\n lambertArray[ 0] = 0x60e393c68d20b1bd09deaabc0373b9c5;\r\n lambertArray[ 1] = 0x5f8f46e4854120989ed94719fb4c2011;\r\n lambertArray[ 2] = 0x5e479ebb9129fb1b7e72a648f992b606;\r\n lambertArray[ 3] = 0x5d0bd23fe42dfedde2e9586be12b85fe;\r\n lambertArray[ 4] = 0x5bdb29ddee979308ddfca81aeeb8095a;\r\n lambertArray[ 5] = 0x5ab4fd8a260d2c7e2c0d2afcf0009dad;\r\n lambertArray[ 6] = 0x5998b31359a55d48724c65cf09001221;\r\n lambertArray[ 7] = 0x5885bcad2b322dfc43e8860f9c018cf5;\r\n lambertArray[ 8] = 0x577b97aa1fe222bb452fdf111b1f0be2;\r\n lambertArray[ 9] = 0x5679cb5e3575632e5baa27e2b949f704;\r\n lambertArray[ 10] = 0x557fe8241b3a31c83c732f1cdff4a1c5;\r\n lambertArray[ 11] = 0x548d868026504875d6e59bbe95fc2a6b;\r\n lambertArray[ 12] = 0x53a2465ce347cf34d05a867c17dd3088;\r\n lambertArray[ 13] = 0x52bdce5dcd4faed59c7f5511cf8f8acc;\r\n lambertArray[ 14] = 0x51dfcb453c07f8da817606e7885f7c3e;\r\n lambertArray[ 15] = 0x5107ef6b0a5a2be8f8ff15590daa3cce;\r\n lambertArray[ 16] = 0x5035f241d6eae0cd7bacba119993de7b;\r\n lambertArray[ 17] = 0x4f698fe90d5b53d532171e1210164c66;\r\n lambertArray[ 18] = 0x4ea288ca297a0e6a09a0eee240e16c85;\r\n lambertArray[ 19] = 0x4de0a13fdcf5d4213fc398ba6e3becde;\r\n lambertArray[ 20] = 0x4d23a145eef91fec06b06140804c4808;\r\n lambertArray[ 21] = 0x4c6b5430d4c1ee5526473db4ae0f11de;\r\n lambertArray[ 22] = 0x4bb7886c240562eba11f4963a53b4240;\r\n lambertArray[ 23] = 0x4b080f3f1cb491d2d521e0ea4583521e;\r\n lambertArray[ 24] = 0x4a5cbc96a05589cb4d86be1db3168364;\r\n lambertArray[ 25] = 0x49b566d40243517658d78c33162d6ece;\r\n lambertArray[ 26] = 0x4911e6a02e5507a30f947383fd9a3276;\r\n lambertArray[ 27] = 0x487216c2b31be4adc41db8a8d5cc0c88;\r\n lambertArray[ 28] = 0x47d5d3fc4a7a1b188cd3d788b5c5e9fc;\r\n lambertArray[ 29] = 0x473cfce4871a2c40bc4f9e1c32b955d0;\r\n lambertArray[ 30] = 0x46a771ca578ab878485810e285e31c67;\r\n lambertArray[ 31] = 0x4615149718aed4c258c373dc676aa72d;\r\n lambertArray[ 32] = 0x4585c8b3f8fe489c6e1833ca47871384;\r\n lambertArray[ 33] = 0x44f972f174e41e5efb7e9d63c29ce735;\r\n lambertArray[ 34] = 0x446ff970ba86d8b00beb05ecebf3c4dc;\r\n lambertArray[ 35] = 0x43e9438ec88971812d6f198b5ccaad96;\r\n lambertArray[ 36] = 0x436539d11ff7bea657aeddb394e809ef;\r\n lambertArray[ 37] = 0x42e3c5d3e5a913401d86f66db5d81c2c;\r\n lambertArray[ 38] = 0x4264d2395303070ea726cbe98df62174;\r\n lambertArray[ 39] = 0x41e84a9a593bb7194c3a6349ecae4eea;\r\n lambertArray[ 40] = 0x416e1b785d13eba07a08f3f18876a5ab;\r\n lambertArray[ 41] = 0x40f6322ff389d423ba9dd7e7e7b7e809;\r\n lambertArray[ 42] = 0x40807cec8a466880ecf4184545d240a4;\r\n lambertArray[ 43] = 0x400cea9ce88a8d3ae668e8ea0d9bf07f;\r\n lambertArray[ 44] = 0x3f9b6ae8772d4c55091e0ed7dfea0ac1;\r\n lambertArray[ 45] = 0x3f2bee253fd84594f54bcaafac383a13;\r\n lambertArray[ 46] = 0x3ebe654e95208bb9210c575c081c5958;\r\n lambertArray[ 47] = 0x3e52c1fc5665635b78ce1f05ad53c086;\r\n lambertArray[ 48] = 0x3de8f65ac388101ddf718a6f5c1eff65;\r\n lambertArray[ 49] = 0x3d80f522d59bd0b328ca012df4cd2d49;\r\n lambertArray[ 50] = 0x3d1ab193129ea72b23648a161163a85a;\r\n lambertArray[ 51] = 0x3cb61f68d32576c135b95cfb53f76d75;\r\n lambertArray[ 52] = 0x3c5332d9f1aae851a3619e77e4cc8473;\r\n lambertArray[ 53] = 0x3bf1e08edbe2aa109e1525f65759ef73;\r\n lambertArray[ 54] = 0x3b921d9cff13fa2c197746a3dfc4918f;\r\n lambertArray[ 55] = 0x3b33df818910bfc1a5aefb8f63ae2ac4;\r\n lambertArray[ 56] = 0x3ad71c1c77e34fa32a9f184967eccbf6;\r\n lambertArray[ 57] = 0x3a7bc9abf2c5bb53e2f7384a8a16521a;\r\n lambertArray[ 58] = 0x3a21dec7e76369783a68a0c6385a1c57;\r\n lambertArray[ 59] = 0x39c9525de6c9cdf7c1c157ca4a7a6ee3;\r\n lambertArray[ 60] = 0x39721bad3dc85d1240ff0190e0adaac3;\r\n lambertArray[ 61] = 0x391c324344d3248f0469eb28dd3d77e0;\r\n lambertArray[ 62] = 0x38c78df7e3c796279fb4ff84394ab3da;\r\n lambertArray[ 63] = 0x387426ea4638ae9aae08049d3554c20a;\r\n lambertArray[ 64] = 0x3821f57dbd2763256c1a99bbd2051378;\r\n lambertArray[ 65] = 0x37d0f256cb46a8c92ff62fbbef289698;\r\n lambertArray[ 66] = 0x37811658591ffc7abdd1feaf3cef9b73;\r\n lambertArray[ 67] = 0x37325aa10e9e82f7df0f380f7997154b;\r\n lambertArray[ 68] = 0x36e4b888cfb408d873b9a80d439311c6;\r\n lambertArray[ 69] = 0x3698299e59f4bb9de645fc9b08c64cca;\r\n lambertArray[ 70] = 0x364ca7a5012cb603023b57dd3ebfd50d;\r\n lambertArray[ 71] = 0x36022c928915b778ab1b06aaee7e61d4;\r\n lambertArray[ 72] = 0x35b8b28d1a73dc27500ffe35559cc028;\r\n lambertArray[ 73] = 0x357033e951fe250ec5eb4e60955132d7;\r\n lambertArray[ 74] = 0x3528ab2867934e3a21b5412e4c4f8881;\r\n lambertArray[ 75] = 0x34e212f66c55057f9676c80094a61d59;\r\n lambertArray[ 76] = 0x349c66289e5b3c4b540c24f42fa4b9bb;\r\n lambertArray[ 77] = 0x34579fbbd0c733a9c8d6af6b0f7d00f7;\r\n lambertArray[ 78] = 0x3413bad2e712288b924b5882b5b369bf;\r\n lambertArray[ 79] = 0x33d0b2b56286510ef730e213f71f12e9;\r\n lambertArray[ 80] = 0x338e82ce00e2496262c64457535ba1a1;\r\n lambertArray[ 81] = 0x334d26a96b373bb7c2f8ea1827f27a92;\r\n lambertArray[ 82] = 0x330c99f4f4211469e00b3e18c31475ea;\r\n lambertArray[ 83] = 0x32ccd87d6486094999c7d5e6f33237d8;\r\n lambertArray[ 84] = 0x328dde2dd617b6665a2e8556f250c1af;\r\n lambertArray[ 85] = 0x324fa70e9adc270f8262755af5a99af9;\r\n lambertArray[ 86] = 0x32122f443110611ca51040f41fa6e1e3;\r\n lambertArray[ 87] = 0x31d5730e42c0831482f0f1485c4263d8;\r\n lambertArray[ 88] = 0x31996ec6b07b4a83421b5ebc4ab4e1f1;\r\n lambertArray[ 89] = 0x315e1ee0a68ff46bb43ec2b85032e876;\r\n lambertArray[ 90] = 0x31237fe7bc4deacf6775b9efa1a145f8;\r\n lambertArray[ 91] = 0x30e98e7f1cc5a356e44627a6972ea2ff;\r\n lambertArray[ 92] = 0x30b04760b8917ec74205a3002650ec05;\r\n lambertArray[ 93] = 0x3077a75c803468e9132ce0cf3224241d;\r\n lambertArray[ 94] = 0x303fab57a6a275c36f19cda9bace667a;\r\n lambertArray[ 95] = 0x3008504beb8dcbd2cf3bc1f6d5a064f0;\r\n lambertArray[ 96] = 0x2fd19346ed17dac61219ce0c2c5ac4b0;\r\n lambertArray[ 97] = 0x2f9b7169808c324b5852fd3d54ba9714;\r\n lambertArray[ 98] = 0x2f65e7e711cf4b064eea9c08cbdad574;\r\n lambertArray[ 99] = 0x2f30f405093042ddff8a251b6bf6d103;\r\n lambertArray[100] = 0x2efc931a3750f2e8bfe323edfe037574;\r\n lambertArray[101] = 0x2ec8c28e46dbe56d98685278339400cb;\r\n lambertArray[102] = 0x2e957fd933c3926d8a599b602379b851;\r\n lambertArray[103] = 0x2e62c882c7c9ed4473412702f08ba0e5;\r\n lambertArray[104] = 0x2e309a221c12ba361e3ed695167feee2;\r\n lambertArray[105] = 0x2dfef25d1f865ae18dd07cfea4bcea10;\r\n lambertArray[106] = 0x2dcdcee821cdc80decc02c44344aeb31;\r\n lambertArray[107] = 0x2d9d2d8562b34944d0b201bb87260c83;\r\n lambertArray[108] = 0x2d6d0c04a5b62a2c42636308669b729a;\r\n lambertArray[109] = 0x2d3d6842c9a235517fc5a0332691528f;\r\n lambertArray[110] = 0x2d0e402963fe1ea2834abc408c437c10;\r\n lambertArray[111] = 0x2cdf91ae602647908aff975e4d6a2a8c;\r\n lambertArray[112] = 0x2cb15ad3a1eb65f6d74a75da09a1b6c5;\r\n lambertArray[113] = 0x2c8399a6ab8e9774d6fcff373d210727;\r\n lambertArray[114] = 0x2c564c4046f64edba6883ca06bbc4535;\r\n lambertArray[115] = 0x2c2970c431f952641e05cb493e23eed3;\r\n lambertArray[116] = 0x2bfd0560cd9eb14563bc7c0732856c18;\r\n lambertArray[117] = 0x2bd1084ed0332f7ff4150f9d0ef41a2c;\r\n lambertArray[118] = 0x2ba577d0fa1628b76d040b12a82492fb;\r\n lambertArray[119] = 0x2b7a5233cd21581e855e89dc2f1e8a92;\r\n lambertArray[120] = 0x2b4f95cd46904d05d72bdcde337d9cc7;\r\n lambertArray[121] = 0x2b2540fc9b4d9abba3faca6691914675;\r\n lambertArray[122] = 0x2afb5229f68d0830d8be8adb0a0db70f;\r\n lambertArray[123] = 0x2ad1c7c63a9b294c5bc73a3ba3ab7a2b;\r\n lambertArray[124] = 0x2aa8a04ac3cbe1ee1c9c86361465dbb8;\r\n lambertArray[125] = 0x2a7fda392d725a44a2c8aeb9ab35430d;\r\n lambertArray[126] = 0x2a57741b18cde618717792b4faa216db;\r\n lambertArray[127] = 0x2a2f6c81f5d84dd950a35626d6d5503a;\r\n }\r\n\r\n /**\r\n * @dev should be executed after construction (too large for the constructor)\r\n */\r\n function init() public {\r\n initMaxExpArray();\r\n initLambertArray();\r\n }\r\n\r\n /**\r\n * @dev given a token supply, reserve balance, weight and a deposit amount (in the reserve token),\r\n * calculates the target amount for a given conversion (in the main token)\r\n *\r\n * Formula:\r\n * return = _supply * ((1 + _amount / _reserveBalance) ^ (_reserveWeight / 1000000) - 1)\r\n *\r\n * @param _supply smart token supply\r\n * @param _reserveBalance reserve balance\r\n * @param _reserveWeight reserve weight, represented in ppm (1-1000000)\r\n * @param _amount amount of reserve tokens to get the target amount for\r\n *\r\n * @return smart token amount\r\n */\r\n function purchaseTargetAmount(uint256 _supply,\r\n uint256 _reserveBalance,\r\n uint32 _reserveWeight,\r\n uint256 _amount)\r\n public view override returns (uint256)\r\n {\r\n // validate input\r\n require(_supply > 0, \"ERR_INVALID_SUPPLY\");\r\n require(_reserveBalance > 0, \"ERR_INVALID_RESERVE_BALANCE\");\r\n require(_reserveWeight > 0 && _reserveWeight <= MAX_WEIGHT, \"ERR_INVALID_RESERVE_WEIGHT\");\r\n\r\n // special case for 0 deposit amount\r\n if (_amount == 0)\r\n return 0;\r\n\r\n // special case if the weight = 100%\r\n if (_reserveWeight == MAX_WEIGHT)\r\n return _supply.mul(_amount) / _reserveBalance;\r\n\r\n uint256 result;\r\n uint8 precision;\r\n uint256 baseN = _amount.add(_reserveBalance);\r\n (result, precision) = power(baseN, _reserveBalance, _reserveWeight, MAX_WEIGHT);\r\n uint256 temp = _supply.mul(result) >> precision;\r\n return temp - _supply;\r\n }\r\n\r\n /**\r\n * @dev given a token supply, reserve balance, weight and a sell amount (in the main token),\r\n * calculates the target amount for a given conversion (in the reserve token)\r\n *\r\n * Formula:\r\n * return = _reserveBalance * (1 - (1 - _amount / _supply) ^ (1000000 / _reserveWeight))\r\n *\r\n * @param _supply smart token supply\r\n * @param _reserveBalance reserve balance\r\n * @param _reserveWeight reserve weight, represented in ppm (1-1000000)\r\n * @param _amount amount of smart tokens to get the target amount for\r\n *\r\n * @return reserve token amount\r\n */\r\n function saleTargetAmount(uint256 _supply,\r\n uint256 _reserveBalance,\r\n uint32 _reserveWeight,\r\n uint256 _amount)\r\n public view override returns (uint256)\r\n {\r\n // validate input\r\n require(_supply > 0, \"ERR_INVALID_SUPPLY\");\r\n require(_reserveBalance > 0, \"ERR_INVALID_RESERVE_BALANCE\");\r\n require(_reserveWeight > 0 && _reserveWeight <= MAX_WEIGHT, \"ERR_INVALID_RESERVE_WEIGHT\");\r\n require(_amount <= _supply, \"ERR_INVALID_AMOUNT\");\r\n\r\n // special case for 0 sell amount\r\n if (_amount == 0)\r\n return 0;\r\n\r\n // special case for selling the entire supply\r\n if (_amount == _supply)\r\n return _reserveBalance;\r\n\r\n // special case if the weight = 100%\r\n if (_reserveWeight == MAX_WEIGHT)\r\n return _reserveBalance.mul(_amount) / _supply;\r\n\r\n uint256 result;\r\n uint8 precision;\r\n uint256 baseD = _supply - _amount;\r\n (result, precision) = power(_supply, baseD, MAX_WEIGHT, _reserveWeight);\r\n uint256 temp1 = _reserveBalance.mul(result);\r\n uint256 temp2 = _reserveBalance << precision;\r\n return (temp1 - temp2) / result;\r\n }\r\n\r\n /**\r\n * @dev given two reserve balances/weights and a sell amount (in the first reserve token),\r\n * calculates the target amount for a conversion from the source reserve token to the target reserve token\r\n *\r\n * Formula:\r\n * return = _targetReserveBalance * (1 - (_sourceReserveBalance / (_sourceReserveBalance + _amount)) ^ (_sourceReserveWeight / _targetReserveWeight))\r\n *\r\n * @param _sourceReserveBalance source reserve balance\r\n * @param _sourceReserveWeight source reserve weight, represented in ppm (1-1000000)\r\n * @param _targetReserveBalance target reserve balance\r\n * @param _targetReserveWeight target reserve weight, represented in ppm (1-1000000)\r\n * @param _amount source reserve amount\r\n *\r\n * @return target reserve amount\r\n */\r\n function crossReserveTargetAmount(uint256 _sourceReserveBalance,\r\n uint32 _sourceReserveWeight,\r\n uint256 _targetReserveBalance,\r\n uint32 _targetReserveWeight,\r\n uint256 _amount)\r\n public view override returns (uint256)\r\n {\r\n // validate input\r\n require(_sourceReserveBalance > 0 && _targetReserveBalance > 0, \"ERR_INVALID_RESERVE_BALANCE\");\r\n require(_sourceReserveWeight > 0 && _sourceReserveWeight <= MAX_WEIGHT &&\r\n _targetReserveWeight > 0 && _targetReserveWeight <= MAX_WEIGHT, \"ERR_INVALID_RESERVE_WEIGHT\");\r\n\r\n // special case for equal weights\r\n if (_sourceReserveWeight == _targetReserveWeight)\r\n return _targetReserveBalance.mul(_amount) / _sourceReserveBalance.add(_amount);\r\n\r\n uint256 result;\r\n uint8 precision;\r\n uint256 baseN = _sourceReserveBalance.add(_amount);\r\n (result, precision) = power(baseN, _sourceReserveBalance, _sourceReserveWeight, _targetReserveWeight);\r\n uint256 temp1 = _targetReserveBalance.mul(result);\r\n uint256 temp2 = _targetReserveBalance << precision;\r\n return (temp1 - temp2) / result;\r\n }\r\n\r\n /**\r\n * @dev given a smart token supply, reserve balance, reserve ratio and an amount of requested smart tokens,\r\n * calculates the amount of reserve tokens required for purchasing the given amount of smart tokens\r\n *\r\n * Formula:\r\n * return = _reserveBalance * (((_supply + _amount) / _supply) ^ (MAX_WEIGHT / _reserveRatio) - 1)\r\n *\r\n * @param _supply smart token supply\r\n * @param _reserveBalance reserve balance\r\n * @param _reserveRatio reserve ratio, represented in ppm (2-2000000)\r\n * @param _amount requested amount of smart tokens\r\n *\r\n * @return reserve token amount\r\n */\r\n function fundCost(uint256 _supply,\r\n uint256 _reserveBalance,\r\n uint32 _reserveRatio,\r\n uint256 _amount)\r\n public view override returns (uint256)\r\n {\r\n // validate input\r\n require(_supply > 0, \"ERR_INVALID_SUPPLY\");\r\n require(_reserveBalance > 0, \"ERR_INVALID_RESERVE_BALANCE\");\r\n require(_reserveRatio > 1 && _reserveRatio <= MAX_WEIGHT * 2, \"ERR_INVALID_RESERVE_RATIO\");\r\n\r\n // special case for 0 amount\r\n if (_amount == 0)\r\n return 0;\r\n\r\n // special case if the reserve ratio = 100%\r\n if (_reserveRatio == MAX_WEIGHT)\r\n return (_amount.mul(_reserveBalance) - 1) / _supply + 1;\r\n\r\n uint256 result;\r\n uint8 precision;\r\n uint256 baseN = _supply.add(_amount);\r\n (result, precision) = power(baseN, _supply, MAX_WEIGHT, _reserveRatio);\r\n uint256 temp = ((_reserveBalance.mul(result) - 1) >> precision) + 1;\r\n return temp - _reserveBalance;\r\n }\r\n\r\n /**\r\n * @dev given a smart token supply, reserve balance, reserve ratio and an amount of reserve tokens to fund with,\r\n * calculates the amount of smart tokens received for purchasing with the given amount of reserve tokens\r\n *\r\n * Formula:\r\n * return = _supply * ((_amount / _reserveBalance + 1) ^ (_reserveRatio / MAX_WEIGHT) - 1)\r\n *\r\n * @param _supply smart token supply\r\n * @param _reserveBalance reserve balance\r\n * @param _reserveRatio reserve ratio, represented in ppm (2-2000000)\r\n * @param _amount amount of reserve tokens to fund with\r\n *\r\n * @return smart token amount\r\n */\r\n function fundSupplyAmount(uint256 _supply,\r\n uint256 _reserveBalance,\r\n uint32 _reserveRatio,\r\n uint256 _amount)\r\n public view override returns (uint256)\r\n {\r\n // validate input\r\n require(_supply > 0, \"ERR_INVALID_SUPPLY\");\r\n require(_reserveBalance > 0, \"ERR_INVALID_RESERVE_BALANCE\");\r\n require(_reserveRatio > 1 && _reserveRatio <= MAX_WEIGHT * 2, \"ERR_INVALID_RESERVE_RATIO\");\r\n\r\n // special case for 0 amount\r\n if (_amount == 0)\r\n return 0;\r\n\r\n // special case if the reserve ratio = 100%\r\n if (_reserveRatio == MAX_WEIGHT)\r\n return _amount.mul(_supply) / _reserveBalance;\r\n\r\n uint256 result;\r\n uint8 precision;\r\n uint256 baseN = _reserveBalance.add(_amount);\r\n (result, precision) = power(baseN, _reserveBalance, _reserveRatio, MAX_WEIGHT);\r\n uint256 temp = _supply.mul(result) >> precision;\r\n return temp - _supply;\r\n }\r\n\r\n /**\r\n * @dev given a smart token supply, reserve balance, reserve ratio and an amount of smart tokens to liquidate,\r\n * calculates the amount of reserve tokens received for selling the given amount of smart tokens\r\n *\r\n * Formula:\r\n * return = _reserveBalance * (1 - ((_supply - _amount) / _supply) ^ (MAX_WEIGHT / _reserveRatio))\r\n *\r\n * @param _supply smart token supply\r\n * @param _reserveBalance reserve balance\r\n * @param _reserveRatio reserve ratio, represented in ppm (2-2000000)\r\n * @param _amount amount of smart tokens to liquidate\r\n *\r\n * @return reserve token amount\r\n */\r\n function liquidateReserveAmount(uint256 _supply,\r\n uint256 _reserveBalance,\r\n uint32 _reserveRatio,\r\n uint256 _amount)\r\n public view override returns (uint256)\r\n {\r\n // validate input\r\n require(_supply > 0, \"ERR_INVALID_SUPPLY\");\r\n require(_reserveBalance > 0, \"ERR_INVALID_RESERVE_BALANCE\");\r\n require(_reserveRatio > 1 && _reserveRatio <= MAX_WEIGHT * 2, \"ERR_INVALID_RESERVE_RATIO\");\r\n require(_amount <= _supply, \"ERR_INVALID_AMOUNT\");\r\n\r\n // special case for 0 amount\r\n if (_amount == 0)\r\n return 0;\r\n\r\n // special case for liquidating the entire supply\r\n if (_amount == _supply)\r\n return _reserveBalance;\r\n\r\n // special case if the reserve ratio = 100%\r\n if (_reserveRatio == MAX_WEIGHT)\r\n return _amount.mul(_reserveBalance) / _supply;\r\n\r\n uint256 result;\r\n uint8 precision;\r\n uint256 baseD = _supply - _amount;\r\n (result, precision) = power(_supply, baseD, MAX_WEIGHT, _reserveRatio);\r\n uint256 temp1 = _reserveBalance.mul(result);\r\n uint256 temp2 = _reserveBalance << precision;\r\n return (temp1 - temp2) / result;\r\n }\r\n\r\n /**\r\n * @dev The arbitrage incentive is to convert to the point where the on-chain price is equal to the off-chain price.\r\n * We want this operation to also impact the primary reserve balance becoming equal to the primary reserve staked balance.\r\n * In other words, we want the arbitrager to convert the difference between the reserve balance and the reserve staked balance.\r\n *\r\n * Formula input:\r\n * - let t denote the primary reserve token staked balance\r\n * - let s denote the primary reserve token balance\r\n * - let r denote the secondary reserve token balance\r\n * - let q denote the numerator of the rate between the tokens\r\n * - let p denote the denominator of the rate between the tokens\r\n * Where p primary tokens are equal to q secondary tokens\r\n *\r\n * Formula output:\r\n * - compute x = W(t / r * q / p * log(s / t)) / log(s / t)\r\n * - return x / (1 + x) as the weight of the primary reserve token\r\n * - return 1 / (1 + x) as the weight of the secondary reserve token\r\n * Where W is the Lambert W Function\r\n *\r\n * If the rate-provider provides the rates for a common unit, for example:\r\n * - P = 2 ==> 2 primary reserve tokens = 1 ether\r\n * - Q = 3 ==> 3 secondary reserve tokens = 1 ether\r\n * Then you can simply use p = P and q = Q\r\n *\r\n * If the rate-provider provides the rates for a single unit, for example:\r\n * - P = 2 ==> 1 primary reserve token = 2 ethers\r\n * - Q = 3 ==> 1 secondary reserve token = 3 ethers\r\n * Then you can simply use p = Q and q = P\r\n *\r\n * @param _primaryReserveStakedBalance the primary reserve token staked balance\r\n * @param _primaryReserveBalance the primary reserve token balance\r\n * @param _secondaryReserveBalance the secondary reserve token balance\r\n * @param _reserveRateNumerator the numerator of the rate between the tokens\r\n * @param _reserveRateDenominator the denominator of the rate between the tokens\r\n *\r\n * Note that `numerator / denominator` should represent the amount of secondary tokens equal to one primary token\r\n *\r\n * @return the weight of the primary reserve token and the weight of the secondary reserve token, both in ppm (0-1000000)\r\n */\r\n function balancedWeights(uint256 _primaryReserveStakedBalance,\r\n uint256 _primaryReserveBalance,\r\n uint256 _secondaryReserveBalance,\r\n uint256 _reserveRateNumerator,\r\n uint256 _reserveRateDenominator)\r\n public view override returns (uint32, uint32)\r\n {\r\n if (_primaryReserveStakedBalance == _primaryReserveBalance)\r\n require(_primaryReserveStakedBalance > 0 || _secondaryReserveBalance > 0, \"ERR_INVALID_RESERVE_BALANCE\");\r\n else\r\n require(_primaryReserveStakedBalance > 0 && _primaryReserveBalance > 0 && _secondaryReserveBalance > 0, \"ERR_INVALID_RESERVE_BALANCE\");\r\n require(_reserveRateNumerator > 0 && _reserveRateDenominator > 0, \"ERR_INVALID_RESERVE_RATE\");\r\n\r\n uint256 tq = _primaryReserveStakedBalance.mul(_reserveRateNumerator);\r\n uint256 rp = _secondaryReserveBalance.mul(_reserveRateDenominator);\r\n\r\n if (_primaryReserveStakedBalance < _primaryReserveBalance)\r\n return balancedWeightsByStake(_primaryReserveBalance, _primaryReserveStakedBalance, tq, rp, true);\r\n\r\n if (_primaryReserveStakedBalance > _primaryReserveBalance)\r\n return balancedWeightsByStake(_primaryReserveStakedBalance, _primaryReserveBalance, tq, rp, false);\r\n\r\n return normalizedWeights(tq, rp);\r\n }\r\n\r\n /**\r\n * @dev General Description:\r\n * Determine a value of precision.\r\n * Calculate an integer approximation of (_baseN / _baseD) ^ (_expN / _expD) * 2 ^ precision.\r\n * Return the result along with the precision used.\r\n *\r\n * Detailed Description:\r\n * Instead of calculating \"base ^ exp\", we calculate \"e ^ (log(base) * exp)\".\r\n * The value of \"log(base)\" is represented with an integer slightly smaller than \"log(base) * 2 ^ precision\".\r\n * The larger \"precision\" is, the more accurately this value represents the real value.\r\n * However, the larger \"precision\" is, the more bits are required in order to store this value.\r\n * And the exponentiation function, which takes \"x\" and calculates \"e ^ x\", is limited to a maximum exponent (maximum value of \"x\").\r\n * This maximum exponent depends on the \"precision\" used, and it is given by \"maxExpArray[precision] >> (MAX_PRECISION - precision)\".\r\n * Hence we need to determine the highest precision which can be used for the given input, before calling the exponentiation function.\r\n * This allows us to compute \"base ^ exp\" with maximum accuracy and without exceeding 256 bits in any of the intermediate computations.\r\n * This functions assumes that \"_expN < 2 ^ 256 / log(MAX_NUM - 1)\", otherwise the multiplication should be replaced with a \"safeMul\".\r\n * Since we rely on unsigned-integer arithmetic and \"base < 1\" ==> \"log(base) < 0\", this function does not support \"_baseN < _baseD\".\r\n */\r\n function power(uint256 _baseN, uint256 _baseD, uint32 _expN, uint32 _expD) internal view returns (uint256, uint8) {\r\n require(_baseN < MAX_NUM);\r\n\r\n uint256 baseLog;\r\n uint256 base = _baseN * FIXED_1 / _baseD;\r\n if (base < OPT_LOG_MAX_VAL) {\r\n baseLog = optimalLog(base);\r\n }\r\n else {\r\n baseLog = generalLog(base);\r\n }\r\n\r\n uint256 baseLogTimesExp = baseLog * _expN / _expD;\r\n if (baseLogTimesExp < OPT_EXP_MAX_VAL) {\r\n return (optimalExp(baseLogTimesExp), MAX_PRECISION);\r\n }\r\n else {\r\n uint8 precision = findPositionInMaxExpArray(baseLogTimesExp);\r\n return (generalExp(baseLogTimesExp >> (MAX_PRECISION - precision), precision), precision);\r\n }\r\n }\r\n\r\n /**\r\n * @dev computes log(x / FIXED_1) * FIXED_1.\r\n * This functions assumes that \"x >= FIXED_1\", because the output would be negative otherwise.\r\n */\r\n function generalLog(uint256 x) internal pure returns (uint256) {\r\n uint256 res = 0;\r\n\r\n // If x >= 2, then we compute the integer part of log2(x), which is larger than 0.\r\n if (x >= FIXED_2) {\r\n uint8 count = floorLog2(x / FIXED_1);\r\n x >>= count; // now x < 2\r\n res = count * FIXED_1;\r\n }\r\n\r\n // If x > 1, then we compute the fraction part of log2(x), which is larger than 0.\r\n if (x > FIXED_1) {\r\n for (uint8 i = MAX_PRECISION; i > 0; --i) {\r\n x = (x * x) / FIXED_1; // now 1 < x < 4\r\n if (x >= FIXED_2) {\r\n x >>= 1; // now 1 < x < 2\r\n res += ONE << (i - 1);\r\n }\r\n }\r\n }\r\n\r\n return res * LN2_NUMERATOR / LN2_DENOMINATOR;\r\n }\r\n\r\n /**\r\n * @dev computes the largest integer smaller than or equal to the binary logarithm of the input.\r\n */\r\n function floorLog2(uint256 _n) internal pure returns (uint8) {\r\n uint8 res = 0;\r\n\r\n if (_n < 256) {\r\n // At most 8 iterations\r\n while (_n > 1) {\r\n _n >>= 1;\r\n res += 1;\r\n }\r\n }\r\n else {\r\n // Exactly 8 iterations\r\n for (uint8 s = 128; s > 0; s >>= 1) {\r\n if (_n >= (ONE << s)) {\r\n _n >>= s;\r\n res |= s;\r\n }\r\n }\r\n }\r\n\r\n return res;\r\n }\r\n\r\n /**\r\n * @dev the global \"maxExpArray\" is sorted in descending order, and therefore the following statements are equivalent:\r\n * - This function finds the position of [the smallest value in \"maxExpArray\" larger than or equal to \"x\"]\r\n * - This function finds the highest position of [a value in \"maxExpArray\" larger than or equal to \"x\"]\r\n */\r\n function findPositionInMaxExpArray(uint256 _x) internal view returns (uint8) {\r\n uint8 lo = MIN_PRECISION;\r\n uint8 hi = MAX_PRECISION;\r\n\r\n while (lo + 1 < hi) {\r\n uint8 mid = (lo + hi) / 2;\r\n if (maxExpArray[mid] >= _x)\r\n lo = mid;\r\n else\r\n hi = mid;\r\n }\r\n\r\n if (maxExpArray[hi] >= _x)\r\n return hi;\r\n if (maxExpArray[lo] >= _x)\r\n return lo;\r\n\r\n require(false);\r\n }\r\n\r\n /**\r\n * @dev this function can be auto-generated by the script 'PrintFunctionGeneralExp.py'.\r\n * it approximates \"e ^ x\" via maclaurin summation: \"(x^0)/0! + (x^1)/1! + ... + (x^n)/n!\".\r\n * it returns \"e ^ (x / 2 ^ precision) * 2 ^ precision\", that is, the result is upshifted for accuracy.\r\n * the global \"maxExpArray\" maps each \"precision\" to \"((maximumExponent + 1) << (MAX_PRECISION - precision)) - 1\".\r\n * the maximum permitted value for \"x\" is therefore given by \"maxExpArray[precision] >> (MAX_PRECISION - precision)\".\r\n */\r\n function generalExp(uint256 _x, uint8 _precision) internal pure returns (uint256) {\r\n uint256 xi = _x;\r\n uint256 res = 0;\r\n\r\n xi = (xi * _x) >> _precision; res += xi * 0x3442c4e6074a82f1797f72ac0000000; // add x^02 * (33! / 02!)\r\n xi = (xi * _x) >> _precision; res += xi * 0x116b96f757c380fb287fd0e40000000; // add x^03 * (33! / 03!)\r\n xi = (xi * _x) >> _precision; res += xi * 0x045ae5bdd5f0e03eca1ff4390000000; // add x^04 * (33! / 04!)\r\n xi = (xi * _x) >> _precision; res += xi * 0x00defabf91302cd95b9ffda50000000; // add x^05 * (33! / 05!)\r\n xi = (xi * _x) >> _precision; res += xi * 0x002529ca9832b22439efff9b8000000; // add x^06 * (33! / 06!)\r\n xi = (xi * _x) >> _precision; res += xi * 0x00054f1cf12bd04e516b6da88000000; // add x^07 * (33! / 07!)\r\n xi = (xi * _x) >> _precision; res += xi * 0x0000a9e39e257a09ca2d6db51000000; // add x^08 * (33! / 08!)\r\n xi = (xi * _x) >> _precision; res += xi * 0x000012e066e7b839fa050c309000000; // add x^09 * (33! / 09!)\r\n xi = (xi * _x) >> _precision; res += xi * 0x000001e33d7d926c329a1ad1a800000; // add x^10 * (33! / 10!)\r\n xi = (xi * _x) >> _precision; res += xi * 0x0000002bee513bdb4a6b19b5f800000; // add x^11 * (33! / 11!)\r\n xi = (xi * _x) >> _precision; res += xi * 0x00000003a9316fa79b88eccf2a00000; // add x^12 * (33! / 12!)\r\n xi = (xi * _x) >> _precision; res += xi * 0x0000000048177ebe1fa812375200000; // add x^13 * (33! / 13!)\r\n xi = (xi * _x) >> _precision; res += xi * 0x0000000005263fe90242dcbacf00000; // add x^14 * (33! / 14!)\r\n xi = (xi * _x) >> _precision; res += xi * 0x000000000057e22099c030d94100000; // add x^15 * (33! / 15!)\r\n xi = (xi * _x) >> _precision; res += xi * 0x0000000000057e22099c030d9410000; // add x^16 * (33! / 16!)\r\n xi = (xi * _x) >> _precision; res += xi * 0x00000000000052b6b54569976310000; // add x^17 * (33! / 17!)\r\n xi = (xi * _x) >> _precision; res += xi * 0x00000000000004985f67696bf748000; // add x^18 * (33! / 18!)\r\n xi = (xi * _x) >> _precision; res += xi * 0x000000000000003dea12ea99e498000; // add x^19 * (33! / 19!)\r\n xi = (xi * _x) >> _precision; res += xi * 0x00000000000000031880f2214b6e000; // add x^20 * (33! / 20!)\r\n xi = (xi * _x) >> _precision; res += xi * 0x000000000000000025bcff56eb36000; // add x^21 * (33! / 21!)\r\n xi = (xi * _x) >> _precision; res += xi * 0x000000000000000001b722e10ab1000; // add x^22 * (33! / 22!)\r\n xi = (xi * _x) >> _precision; res += xi * 0x0000000000000000001317c70077000; // add x^23 * (33! / 23!)\r\n xi = (xi * _x) >> _precision; res += xi * 0x00000000000000000000cba84aafa00; // add x^24 * (33! / 24!)\r\n xi = (xi * _x) >> _precision; res += xi * 0x00000000000000000000082573a0a00; // add x^25 * (33! / 25!)\r\n xi = (xi * _x) >> _precision; res += xi * 0x00000000000000000000005035ad900; // add x^26 * (33! / 26!)\r\n xi = (xi * _x) >> _precision; res += xi * 0x000000000000000000000002f881b00; // add x^27 * (33! / 27!)\r\n xi = (xi * _x) >> _precision; res += xi * 0x0000000000000000000000001b29340; // add x^28 * (33! / 28!)\r\n xi = (xi * _x) >> _precision; res += xi * 0x00000000000000000000000000efc40; // add x^29 * (33! / 29!)\r\n xi = (xi * _x) >> _precision; res += xi * 0x0000000000000000000000000007fe0; // add x^30 * (33! / 30!)\r\n xi = (xi * _x) >> _precision; res += xi * 0x0000000000000000000000000000420; // add x^31 * (33! / 31!)\r\n xi = (xi * _x) >> _precision; res += xi * 0x0000000000000000000000000000021; // add x^32 * (33! / 32!)\r\n xi = (xi * _x) >> _precision; res += xi * 0x0000000000000000000000000000001; // add x^33 * (33! / 33!)\r\n\r\n return res / 0x688589cc0e9505e2f2fee5580000000 + _x + (ONE << _precision); // divide by 33! and then add x^1 / 1! + x^0 / 0!\r\n }\r\n\r\n /**\r\n * @dev computes log(x / FIXED_1) * FIXED_1\r\n * Input range: FIXED_1 <= x <= OPT_LOG_MAX_VAL - 1\r\n * Auto-generated via 'PrintFunctionOptimalLog.py'\r\n * Detailed description:\r\n * - Rewrite the input as a product of natural exponents and a single residual r, such that 1 < r < 2\r\n * - The natural logarithm of each (pre-calculated) exponent is the degree of the exponent\r\n * - The natural logarithm of r is calculated via Taylor series for log(1 + x), where x = r - 1\r\n * - The natural logarithm of the input is calculated by summing up the intermediate results above\r\n * - For example: log(250) = log(e^4 * e^1 * e^0.5 * 1.021692859) = 4 + 1 + 0.5 + log(1 + 0.021692859)\r\n */\r\n function optimalLog(uint256 x) internal pure returns (uint256) {\r\n uint256 res = 0;\r\n\r\n uint256 y;\r\n uint256 z;\r\n uint256 w;\r\n\r\n if (x >= 0xd3094c70f034de4b96ff7d5b6f99fcd8) {res += 0x40000000000000000000000000000000; x = x * FIXED_1 / 0xd3094c70f034de4b96ff7d5b6f99fcd8;} // add 1 / 2^1\r\n if (x >= 0xa45af1e1f40c333b3de1db4dd55f29a7) {res += 0x20000000000000000000000000000000; x = x * FIXED_1 / 0xa45af1e1f40c333b3de1db4dd55f29a7;} // add 1 / 2^2\r\n if (x >= 0x910b022db7ae67ce76b441c27035c6a1) {res += 0x10000000000000000000000000000000; x = x * FIXED_1 / 0x910b022db7ae67ce76b441c27035c6a1;} // add 1 / 2^3\r\n if (x >= 0x88415abbe9a76bead8d00cf112e4d4a8) {res += 0x08000000000000000000000000000000; x = x * FIXED_1 / 0x88415abbe9a76bead8d00cf112e4d4a8;} // add 1 / 2^4\r\n if (x >= 0x84102b00893f64c705e841d5d4064bd3) {res += 0x04000000000000000000000000000000; x = x * FIXED_1 / 0x84102b00893f64c705e841d5d4064bd3;} // add 1 / 2^5\r\n if (x >= 0x8204055aaef1c8bd5c3259f4822735a2) {res += 0x02000000000000000000000000000000; x = x * FIXED_1 / 0x8204055aaef1c8bd5c3259f4822735a2;} // add 1 / 2^6\r\n if (x >= 0x810100ab00222d861931c15e39b44e99) {res += 0x01000000000000000000000000000000; x = x * FIXED_1 / 0x810100ab00222d861931c15e39b44e99;} // add 1 / 2^7\r\n if (x >= 0x808040155aabbbe9451521693554f733) {res += 0x00800000000000000000000000000000; x = x * FIXED_1 / 0x808040155aabbbe9451521693554f733;} // add 1 / 2^8\r\n\r\n z = y = x - FIXED_1;\r\n w = y * y / FIXED_1;\r\n res += z * (0x100000000000000000000000000000000 - y) / 0x100000000000000000000000000000000; z = z * w / FIXED_1; // add y^01 / 01 - y^02 / 02\r\n res += z * (0x0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa - y) / 0x200000000000000000000000000000000; z = z * w / FIXED_1; // add y^03 / 03 - y^04 / 04\r\n res += z * (0x099999999999999999999999999999999 - y) / 0x300000000000000000000000000000000; z = z * w / FIXED_1; // add y^05 / 05 - y^06 / 06\r\n res += z * (0x092492492492492492492492492492492 - y) / 0x400000000000000000000000000000000; z = z * w / FIXED_1; // add y^07 / 07 - y^08 / 08\r\n res += z * (0x08e38e38e38e38e38e38e38e38e38e38e - y) / 0x500000000000000000000000000000000; z = z * w / FIXED_1; // add y^09 / 09 - y^10 / 10\r\n res += z * (0x08ba2e8ba2e8ba2e8ba2e8ba2e8ba2e8b - y) / 0x600000000000000000000000000000000; z = z * w / FIXED_1; // add y^11 / 11 - y^12 / 12\r\n res += z * (0x089d89d89d89d89d89d89d89d89d89d89 - y) / 0x700000000000000000000000000000000; z = z * w / FIXED_1; // add y^13 / 13 - y^14 / 14\r\n res += z * (0x088888888888888888888888888888888 - y) / 0x800000000000000000000000000000000; // add y^15 / 15 - y^16 / 16\r\n\r\n return res;\r\n }\r\n\r\n /**\r\n * @dev computes e ^ (x / FIXED_1) * FIXED_1\r\n * input range: 0 <= x <= OPT_EXP_MAX_VAL - 1\r\n * auto-generated via 'PrintFunctionOptimalExp.py'\r\n * Detailed description:\r\n * - Rewrite the input as a sum of binary exponents and a single residual r, as small as possible\r\n * - The exponentiation of each binary exponent is given (pre-calculated)\r\n * - The exponentiation of r is calculated via Taylor series for e^x, where x = r\r\n * - The exponentiation of the input is calculated by multiplying the intermediate results above\r\n * - For example: e^5.521692859 = e^(4 + 1 + 0.5 + 0.021692859) = e^4 * e^1 * e^0.5 * e^0.021692859\r\n */\r\n function optimalExp(uint256 x) internal pure returns (uint256) {\r\n uint256 res = 0;\r\n\r\n uint256 y;\r\n uint256 z;\r\n\r\n z = y = x % 0x10000000000000000000000000000000; // get the input modulo 2^(-3)\r\n z = z * y / FIXED_1; res += z * 0x10e1b3be415a0000; // add y^02 * (20! / 02!)\r\n z = z * y / FIXED_1; res += z * 0x05a0913f6b1e0000; // add y^03 * (20! / 03!)\r\n z = z * y / FIXED_1; res += z * 0x0168244fdac78000; // add y^04 * (20! / 04!)\r\n z = z * y / FIXED_1; res += z * 0x004807432bc18000; // add y^05 * (20! / 05!)\r\n z = z * y / FIXED_1; res += z * 0x000c0135dca04000; // add y^06 * (20! / 06!)\r\n z = z * y / FIXED_1; res += z * 0x0001b707b1cdc000; // add y^07 * (20! / 07!)\r\n z = z * y / FIXED_1; res += z * 0x000036e0f639b800; // add y^08 * (20! / 08!)\r\n z = z * y / FIXED_1; res += z * 0x00000618fee9f800; // add y^09 * (20! / 09!)\r\n z = z * y / FIXED_1; res += z * 0x0000009c197dcc00; // add y^10 * (20! / 10!)\r\n z = z * y / FIXED_1; res += z * 0x0000000e30dce400; // add y^11 * (20! / 11!)\r\n z = z * y / FIXED_1; res += z * 0x000000012ebd1300; // add y^12 * (20! / 12!)\r\n z = z * y / FIXED_1; res += z * 0x0000000017499f00; // add y^13 * (20! / 13!)\r\n z = z * y / FIXED_1; res += z * 0x0000000001a9d480; // add y^14 * (20! / 14!)\r\n z = z * y / FIXED_1; res += z * 0x00000000001c6380; // add y^15 * (20! / 15!)\r\n z = z * y / FIXED_1; res += z * 0x000000000001c638; // add y^16 * (20! / 16!)\r\n z = z * y / FIXED_1; res += z * 0x0000000000001ab8; // add y^17 * (20! / 17!)\r\n z = z * y / FIXED_1; res += z * 0x000000000000017c; // add y^18 * (20! / 18!)\r\n z = z * y / FIXED_1; res += z * 0x0000000000000014; // add y^19 * (20! / 19!)\r\n z = z * y / FIXED_1; res += z * 0x0000000000000001; // add y^20 * (20! / 20!)\r\n res = res / 0x21c3677c82b40000 + y + FIXED_1; // divide by 20! and then add y^1 / 1! + y^0 / 0!\r\n\r\n if ((x & 0x010000000000000000000000000000000) != 0) res = res * 0x1c3d6a24ed82218787d624d3e5eba95f9 / 0x18ebef9eac820ae8682b9793ac6d1e776; // multiply by e^2^(-3)\r\n if ((x & 0x020000000000000000000000000000000) != 0) res = res * 0x18ebef9eac820ae8682b9793ac6d1e778 / 0x1368b2fc6f9609fe7aceb46aa619baed4; // multiply by e^2^(-2)\r\n if ((x & 0x040000000000000000000000000000000) != 0) res = res * 0x1368b2fc6f9609fe7aceb46aa619baed5 / 0x0bc5ab1b16779be3575bd8f0520a9f21f; // multiply by e^2^(-1)\r\n if ((x & 0x080000000000000000000000000000000) != 0) res = res * 0x0bc5ab1b16779be3575bd8f0520a9f21e / 0x0454aaa8efe072e7f6ddbab84b40a55c9; // multiply by e^2^(+0)\r\n if ((x & 0x100000000000000000000000000000000) != 0) res = res * 0x0454aaa8efe072e7f6ddbab84b40a55c5 / 0x00960aadc109e7a3bf4578099615711ea; // multiply by e^2^(+1)\r\n if ((x & 0x200000000000000000000000000000000) != 0) res = res * 0x00960aadc109e7a3bf4578099615711d7 / 0x0002bf84208204f5977f9a8cf01fdce3d; // multiply by e^2^(+2)\r\n if ((x & 0x400000000000000000000000000000000) != 0) res = res * 0x0002bf84208204f5977f9a8cf01fdc307 / 0x0000003c6ab775dd0b95b4cbee7e65d11; // multiply by e^2^(+3)\r\n\r\n return res;\r\n }\r\n\r\n /**\r\n * @dev computes W(x / FIXED_1) / (x / FIXED_1) * FIXED_1\r\n */\r\n function lowerStake(uint256 _x) internal view returns (uint256) {\r\n if (_x <= LAMBERT_CONV_RADIUS)\r\n return lambertPos1(_x);\r\n if (_x <= LAMBERT_POS2_MAXVAL)\r\n return lambertPos2(_x);\r\n if (_x <= LAMBERT_POS3_MAXVAL)\r\n return lambertPos3(_x);\r\n require(false);\r\n }\r\n\r\n /**\r\n * @dev computes W(-x / FIXED_1) / (-x / FIXED_1) * FIXED_1\r\n */\r\n function higherStake(uint256 _x) internal pure returns (uint256) {\r\n if (_x <= LAMBERT_CONV_RADIUS)\r\n return lambertNeg1(_x);\r\n return FIXED_1 * FIXED_1 / _x;\r\n }\r\n\r\n /**\r\n * @dev computes W(x / FIXED_1) / (x / FIXED_1) * FIXED_1\r\n * input range: 1 <= x <= 1 / e * FIXED_1\r\n * auto-generated via 'PrintFunctionLambertPos1.py'\r\n */\r\n function lambertPos1(uint256 _x) internal pure returns (uint256) {\r\n uint256 xi = _x;\r\n uint256 res = (FIXED_1 - _x) * 0xde1bc4d19efcac82445da75b00000000; // x^(1-1) * (34! * 1^(1-1) / 1!) - x^(2-1) * (34! * 2^(2-1) / 2!)\r\n\r\n xi = (xi * _x) / FIXED_1; res += xi * 0x00000000014d29a73a6e7b02c3668c7b0880000000; // add x^(03-1) * (34! * 03^(03-1) / 03!)\r\n xi = (xi * _x) / FIXED_1; res -= xi * 0x0000000002504a0cd9a7f7215b60f9be4800000000; // sub x^(04-1) * (34! * 04^(04-1) / 04!)\r\n xi = (xi * _x) / FIXED_1; res += xi * 0x000000000484d0a1191c0ead267967c7a4a0000000; // add x^(05-1) * (34! * 05^(05-1) / 05!)\r\n xi = (xi * _x) / FIXED_1; res -= xi * 0x00000000095ec580d7e8427a4baf26a90a00000000; // sub x^(06-1) * (34! * 06^(06-1) / 06!)\r\n xi = (xi * _x) / FIXED_1; res += xi * 0x000000001440b0be1615a47dba6e5b3b1f10000000; // add x^(07-1) * (34! * 07^(07-1) / 07!)\r\n xi = (xi * _x) / FIXED_1; res -= xi * 0x000000002d207601f46a99b4112418400000000000; // sub x^(08-1) * (34! * 08^(08-1) / 08!)\r\n xi = (xi * _x) / FIXED_1; res += xi * 0x0000000066ebaac4c37c622dd8288a7eb1b2000000; // add x^(09-1) * (34! * 09^(09-1) / 09!)\r\n xi = (xi * _x) / FIXED_1; res -= xi * 0x00000000ef17240135f7dbd43a1ba10cf200000000; // sub x^(10-1) * (34! * 10^(10-1) / 10!)\r\n xi = (xi * _x) / FIXED_1; res += xi * 0x0000000233c33c676a5eb2416094a87b3657000000; // add x^(11-1) * (34! * 11^(11-1) / 11!)\r\n xi = (xi * _x) / FIXED_1; res -= xi * 0x0000000541cde48bc0254bed49a9f8700000000000; // sub x^(12-1) * (34! * 12^(12-1) / 12!)\r\n xi = (xi * _x) / FIXED_1; res += xi * 0x0000000cae1fad2cdd4d4cb8d73abca0d19a400000; // add x^(13-1) * (34! * 13^(13-1) / 13!)\r\n xi = (xi * _x) / FIXED_1; res -= xi * 0x0000001edb2aa2f760d15c41ceedba956400000000; // sub x^(14-1) * (34! * 14^(14-1) / 14!)\r\n xi = (xi * _x) / FIXED_1; res += xi * 0x0000004ba8d20d2dabd386c9529659841a2e200000; // add x^(15-1) * (34! * 15^(15-1) / 15!)\r\n xi = (xi * _x) / FIXED_1; res -= xi * 0x000000bac08546b867cdaa20000000000000000000; // sub x^(16-1) * (34! * 16^(16-1) / 16!)\r\n xi = (xi * _x) / FIXED_1; res += xi * 0x000001cfa8e70c03625b9db76c8ebf5bbf24820000; // add x^(17-1) * (34! * 17^(17-1) / 17!)\r\n xi = (xi * _x) / FIXED_1; res -= xi * 0x000004851d99f82060df265f3309b26f8200000000; // sub x^(18-1) * (34! * 18^(18-1) / 18!)\r\n xi = (xi * _x) / FIXED_1; res += xi * 0x00000b550d19b129d270c44f6f55f027723cbb0000; // add x^(19-1) * (34! * 19^(19-1) / 19!)\r\n xi = (xi * _x) / FIXED_1; res -= xi * 0x00001c877dadc761dc272deb65d4b0000000000000; // sub x^(20-1) * (34! * 20^(20-1) / 20!)\r\n xi = (xi * _x) / FIXED_1; res += xi * 0x000048178ece97479f33a77f2ad22a81b64406c000; // add x^(21-1) * (34! * 21^(21-1) / 21!)\r\n xi = (xi * _x) / FIXED_1; res -= xi * 0x0000b6ca8268b9d810fedf6695ef2f8a6c00000000; // sub x^(22-1) * (34! * 22^(22-1) / 22!)\r\n xi = (xi * _x) / FIXED_1; res += xi * 0x0001d0e76631a5b05d007b8cb72a7c7f11ec36e000; // add x^(23-1) * (34! * 23^(23-1) / 23!)\r\n xi = (xi * _x) / FIXED_1; res -= xi * 0x0004a1c37bd9f85fd9c6c780000000000000000000; // sub x^(24-1) * (34! * 24^(24-1) / 24!)\r\n xi = (xi * _x) / FIXED_1; res += xi * 0x000bd8369f1b702bf491e2ebfcee08250313b65400; // add x^(25-1) * (34! * 25^(25-1) / 25!)\r\n xi = (xi * _x) / FIXED_1; res -= xi * 0x001e5c7c32a9f6c70ab2cb59d9225764d400000000; // sub x^(26-1) * (34! * 26^(26-1) / 26!)\r\n xi = (xi * _x) / FIXED_1; res += xi * 0x004dff5820e165e910f95120a708e742496221e600; // add x^(27-1) * (34! * 27^(27-1) / 27!)\r\n xi = (xi * _x) / FIXED_1; res -= xi * 0x00c8c8f66db1fced378ee50e536000000000000000; // sub x^(28-1) * (34! * 28^(28-1) / 28!)\r\n xi = (xi * _x) / FIXED_1; res += xi * 0x0205db8dffff45bfa2938f128f599dbf16eb11d880; // add x^(29-1) * (34! * 29^(29-1) / 29!)\r\n xi = (xi * _x) / FIXED_1; res -= xi * 0x053a044ebd984351493e1786af38d39a0800000000; // sub x^(30-1) * (34! * 30^(30-1) / 30!)\r\n xi = (xi * _x) / FIXED_1; res += xi * 0x0d86dae2a4cc0f47633a544479735869b487b59c40; // add x^(31-1) * (34! * 31^(31-1) / 31!)\r\n xi = (xi * _x) / FIXED_1; res -= xi * 0x231000000000000000000000000000000000000000; // sub x^(32-1) * (34! * 32^(32-1) / 32!)\r\n xi = (xi * _x) / FIXED_1; res += xi * 0x5b0485a76f6646c2039db1507cdd51b08649680822; // add x^(33-1) * (34! * 33^(33-1) / 33!)\r\n xi = (xi * _x) / FIXED_1; res -= xi * 0xec983c46c49545bc17efa6b5b0055e242200000000; // sub x^(34-1) * (34! * 34^(34-1) / 34!)\r\n\r\n return res / 0xde1bc4d19efcac82445da75b00000000; // divide by 34!\r\n }\r\n\r\n /**\r\n * @dev computes W(x / FIXED_1) / (x / FIXED_1) * FIXED_1\r\n * input range: LAMBERT_CONV_RADIUS + 1 <= x <= LAMBERT_POS2_MAXVAL\r\n */\r\n function lambertPos2(uint256 _x) internal view returns (uint256) {\r\n uint256 x = _x - LAMBERT_CONV_RADIUS - 1;\r\n uint256 i = x / LAMBERT_POS2_SAMPLE;\r\n uint256 a = LAMBERT_POS2_SAMPLE * i;\r\n uint256 b = LAMBERT_POS2_SAMPLE * (i + 1);\r\n uint256 c = lambertArray[i];\r\n uint256 d = lambertArray[i + 1];\r\n return (c * (b - x) + d * (x - a)) / LAMBERT_POS2_SAMPLE;\r\n }\r\n\r\n /**\r\n * @dev computes W(x / FIXED_1) / (x / FIXED_1) * FIXED_1\r\n * input range: LAMBERT_POS2_MAXVAL + 1 <= x <= LAMBERT_POS3_MAXVAL\r\n */\r\n function lambertPos3(uint256 _x) internal pure returns (uint256) {\r\n uint256 l1 = _x < OPT_LOG_MAX_VAL ? optimalLog(_x) : generalLog(_x);\r\n uint256 l2 = l1 < OPT_LOG_MAX_VAL ? optimalLog(l1) : generalLog(l1);\r\n return (l1 - l2 + l2 * FIXED_1 / l1) * FIXED_1 / _x;\r\n }\r\n\r\n /**\r\n * @dev computes W(-x / FIXED_1) / (-x / FIXED_1) * FIXED_1\r\n * input range: 1 <= x <= 1 / e * FIXED_1\r\n * auto-generated via 'PrintFunctionLambertNeg1.py'\r\n */\r\n function lambertNeg1(uint256 _x) internal pure returns (uint256) {\r\n uint256 xi = _x;\r\n uint256 res = 0;\r\n\r\n xi = (xi * _x) / FIXED_1; res += xi * 0x00000000014d29a73a6e7b02c3668c7b0880000000; // add x^(03-1) * (34! * 03^(03-1) / 03!)\r\n xi = (xi * _x) / FIXED_1; res += xi * 0x0000000002504a0cd9a7f7215b60f9be4800000000; // add x^(04-1) * (34! * 04^(04-1) / 04!)\r\n xi = (xi * _x) / FIXED_1; res += xi * 0x000000000484d0a1191c0ead267967c7a4a0000000; // add x^(05-1) * (34! * 05^(05-1) / 05!)\r\n xi = (xi * _x) / FIXED_1; res += xi * 0x00000000095ec580d7e8427a4baf26a90a00000000; // add x^(06-1) * (34! * 06^(06-1) / 06!)\r\n xi = (xi * _x) / FIXED_1; res += xi * 0x000000001440b0be1615a47dba6e5b3b1f10000000; // add x^(07-1) * (34! * 07^(07-1) / 07!)\r\n xi = (xi * _x) / FIXED_1; res += xi * 0x000000002d207601f46a99b4112418400000000000; // add x^(08-1) * (34! * 08^(08-1) / 08!)\r\n xi = (xi * _x) / FIXED_1; res += xi * 0x0000000066ebaac4c37c622dd8288a7eb1b2000000; // add x^(09-1) * (34! * 09^(09-1) / 09!)\r\n xi = (xi * _x) / FIXED_1; res += xi * 0x00000000ef17240135f7dbd43a1ba10cf200000000; // add x^(10-1) * (34! * 10^(10-1) / 10!)\r\n xi = (xi * _x) / FIXED_1; res += xi * 0x0000000233c33c676a5eb2416094a87b3657000000; // add x^(11-1) * (34! * 11^(11-1) / 11!)\r\n xi = (xi * _x) / FIXED_1; res += xi * 0x0000000541cde48bc0254bed49a9f8700000000000; // add x^(12-1) * (34! * 12^(12-1) / 12!)\r\n xi = (xi * _x) / FIXED_1; res += xi * 0x0000000cae1fad2cdd4d4cb8d73abca0d19a400000; // add x^(13-1) * (34! * 13^(13-1) / 13!)\r\n xi = (xi * _x) / FIXED_1; res += xi * 0x0000001edb2aa2f760d15c41ceedba956400000000; // add x^(14-1) * (34! * 14^(14-1) / 14!)\r\n xi = (xi * _x) / FIXED_1; res += xi * 0x0000004ba8d20d2dabd386c9529659841a2e200000; // add x^(15-1) * (34! * 15^(15-1) / 15!)\r\n xi = (xi * _x) / FIXED_1; res += xi * 0x000000bac08546b867cdaa20000000000000000000; // add x^(16-1) * (34! * 16^(16-1) / 16!)\r\n xi = (xi * _x) / FIXED_1; res += xi * 0x000001cfa8e70c03625b9db76c8ebf5bbf24820000; // add x^(17-1) * (34! * 17^(17-1) / 17!)\r\n xi = (xi * _x) / FIXED_1; res += xi * 0x000004851d99f82060df265f3309b26f8200000000; // add x^(18-1) * (34! * 18^(18-1) / 18!)\r\n xi = (xi * _x) / FIXED_1; res += xi * 0x00000b550d19b129d270c44f6f55f027723cbb0000; // add x^(19-1) * (34! * 19^(19-1) / 19!)\r\n xi = (xi * _x) / FIXED_1; res += xi * 0x00001c877dadc761dc272deb65d4b0000000000000; // add x^(20-1) * (34! * 20^(20-1) / 20!)\r\n xi = (xi * _x) / FIXED_1; res += xi * 0x000048178ece97479f33a77f2ad22a81b64406c000; // add x^(21-1) * (34! * 21^(21-1) / 21!)\r\n xi = (xi * _x) / FIXED_1; res += xi * 0x0000b6ca8268b9d810fedf6695ef2f8a6c00000000; // add x^(22-1) * (34! * 22^(22-1) / 22!)\r\n xi = (xi * _x) / FIXED_1; res += xi * 0x0001d0e76631a5b05d007b8cb72a7c7f11ec36e000; // add x^(23-1) * (34! * 23^(23-1) / 23!)\r\n xi = (xi * _x) / FIXED_1; res += xi * 0x0004a1c37bd9f85fd9c6c780000000000000000000; // add x^(24-1) * (34! * 24^(24-1) / 24!)\r\n xi = (xi * _x) / FIXED_1; res += xi * 0x000bd8369f1b702bf491e2ebfcee08250313b65400; // add x^(25-1) * (34! * 25^(25-1) / 25!)\r\n xi = (xi * _x) / FIXED_1; res += xi * 0x001e5c7c32a9f6c70ab2cb59d9225764d400000000; // add x^(26-1) * (34! * 26^(26-1) / 26!)\r\n xi = (xi * _x) / FIXED_1; res += xi * 0x004dff5820e165e910f95120a708e742496221e600; // add x^(27-1) * (34! * 27^(27-1) / 27!)\r\n xi = (xi * _x) / FIXED_1; res += xi * 0x00c8c8f66db1fced378ee50e536000000000000000; // add x^(28-1) * (34! * 28^(28-1) / 28!)\r\n xi = (xi * _x) / FIXED_1; res += xi * 0x0205db8dffff45bfa2938f128f599dbf16eb11d880; // add x^(29-1) * (34! * 29^(29-1) / 29!)\r\n xi = (xi * _x) / FIXED_1; res += xi * 0x053a044ebd984351493e1786af38d39a0800000000; // add x^(30-1) * (34! * 30^(30-1) / 30!)\r\n xi = (xi * _x) / FIXED_1; res += xi * 0x0d86dae2a4cc0f47633a544479735869b487b59c40; // add x^(31-1) * (34! * 31^(31-1) / 31!)\r\n xi = (xi * _x) / FIXED_1; res += xi * 0x231000000000000000000000000000000000000000; // add x^(32-1) * (34! * 32^(32-1) / 32!)\r\n xi = (xi * _x) / FIXED_1; res += xi * 0x5b0485a76f6646c2039db1507cdd51b08649680822; // add x^(33-1) * (34! * 33^(33-1) / 33!)\r\n xi = (xi * _x) / FIXED_1; res += xi * 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uint256 _b) internal pure returns (uint256, uint256) {\r\n if (_a <= FIXED_2 && _b <= FIXED_2)\r\n return (_a, _b);\r\n if (_a < FIXED_2)\r\n return (_a * FIXED_2 / _b, FIXED_2);\r\n if (_b < FIXED_2)\r\n return (FIXED_2, _b * FIXED_2 / _a);\r\n uint256 c = _a > _b ? _a : _b;\r\n uint256 n = floorLog2(c / FIXED_1);\r\n return (_a >> n, _b >> n);\r\n }\r\n\r\n /**\r\n * @dev computes \"MAX_WEIGHT * a / (a + b)\" and \"MAX_WEIGHT * b / (a + b)\".\r\n */\r\n function normalizedWeights(uint256 _a, uint256 _b) internal pure returns (uint32, uint32) {\r\n if (_a <= _b)\r\n return accurateWeights(_a, _b);\r\n (uint32 y, uint32 x) = accurateWeights(_b, _a);\r\n return (x, y);\r\n }\r\n\r\n /**\r\n * @dev computes \"MAX_WEIGHT * a / (a + b)\" and \"MAX_WEIGHT * b / (a + b)\", assuming that \"a <= b\".\r\n */\r\n function accurateWeights(uint256 _a, uint256 _b) internal pure returns (uint32, uint32) {\r\n if (_a > MAX_UNF_WEIGHT) {\r\n uint256 c = _a / (MAX_UNF_WEIGHT + 1) + 1;\r\n _a /= c;\r\n 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_reserveBalance, _reserveWeight, _amount);\r\n }\r\n\r\n /**\r\n * @dev deprecated, backward compatibility\r\n */\r\n function calculateCrossReserveReturn(uint256 _sourceReserveBalance,\r\n uint32 _sourceReserveWeight,\r\n uint256 _targetReserveBalance,\r\n uint32 _targetReserveWeight,\r\n uint256 _amount)\r\n public view returns (uint256)\r\n {\r\n return crossReserveTargetAmount(_sourceReserveBalance, _sourceReserveWeight, _targetReserveBalance, _targetReserveWeight, _amount);\r\n }\r\n\r\n /**\r\n * @dev deprecated, backward compatibility\r\n */\r\n function calculateCrossConnectorReturn(uint256 _sourceReserveBalance,\r\n uint32 _sourceReserveWeight,\r\n uint256 _targetReserveBalance,\r\n uint32 _targetReserveWeight,\r\n uint256 _amount)\r\n public view returns (uint256)\r\n {\r\n return crossReserveTargetAmount(_sourceReserveBalance, _sourceReserveWeight, _targetReserveBalance, _targetReserveWeight, _amount);\r\n }\r\n\r\n /**\r\n * @dev deprecated, backward compatibility\r\n */\r\n function calculateFundCost(uint256 _supply,\r\n uint256 _reserveBalance,\r\n uint32 _reserveRatio,\r\n uint256 _amount)\r\n public view returns (uint256)\r\n {\r\n return fundCost(_supply, _reserveBalance, _reserveRatio, _amount);\r\n }\r\n\r\n /**\r\n * @dev deprecated, backward compatibility\r\n */\r\n function calculateLiquidateReturn(uint256 _supply,\r\n uint256 _reserveBalance,\r\n uint32 _reserveRatio,\r\n uint256 _amount)\r\n public view returns (uint256)\r\n {\r\n return liquidateReserveAmount(_supply, _reserveBalance, _reserveRatio, _amount);\r\n }\r\n\r\n /**\r\n * @dev deprecated, backward compatibility\r\n */\r\n function purchaseRate(uint256 _supply,\r\n uint256 _reserveBalance,\r\n uint32 _reserveWeight,\r\n uint256 _amount)\r\n public view returns (uint256)\r\n {\r\n return purchaseTargetAmount(_supply, _reserveBalance, _reserveWeight, _amount);\r\n }\r\n\r\n /**\r\n * @dev deprecated, backward compatibility\r\n */\r\n function saleRate(uint256 _supply,\r\n uint256 _reserveBalance,\r\n uint32 _reserveWeight,\r\n uint256 _amount)\r\n public view returns (uint256)\r\n {\r\n return saleTargetAmount(_supply, _reserveBalance, _reserveWeight, _amount);\r\n }\r\n\r\n /**\r\n * @dev deprecated, backward compatibility\r\n */\r\n function crossReserveRate(uint256 _sourceReserveBalance,\r\n uint32 _sourceReserveWeight,\r\n uint256 _targetReserveBalance,\r\n uint32 _targetReserveWeight,\r\n uint256 _amount)\r\n public view returns (uint256)\r\n {\r\n return crossReserveTargetAmount(_sourceReserveBalance, _sourceReserveWeight, _targetReserveBalance, _targetReserveWeight, _amount);\r\n }\r\n\r\n /**\r\n * @dev deprecated, backward compatibility\r\n */\r\n function liquidateRate(uint256 _supply,\r\n uint256 _reserveBalance,\r\n uint32 _reserveRatio,\r\n uint256 _amount)\r\n public view returns (uint256)\r\n {\r\n return liquidateReserveAmount(_supply, _reserveBalance, _reserveRatio, _amount);\r\n }\r\n}\r\n",
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+ "src": "68742:27:7",
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+ "virtual": false,
+ "visibility": "public"
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+ "src": "69481:98:7",
+ "statements": [
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+ ],
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+ "name": "liquidateReserveAmount",
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+ "src": "69499:22:7",
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+ "typeIdentifier": "t_function_internal_view$_t_uint256_$_t_uint256_$_t_uint32_$_t_uint256_$returns$_t_uint256_$",
+ "typeString": "function (uint256,uint256,uint32,uint256) view returns (uint256)"
+ }
+ },
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+ "nodeType": "FunctionCall",
+ "src": "69499:72:7",
+ "tryCall": false,
+ "typeDescriptions": {
+ "typeIdentifier": "t_uint256",
+ "typeString": "uint256"
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+ "functionReturnParameters": 8967,
+ "id": 8974,
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+ }
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+ },
+ "documentation": {
+ "id": 8955,
+ "nodeType": "StructuredDocumentation",
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+ "text": " @dev deprecated, backward compatibility"
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+ "src": "69298:23:7",
+ "stateVariable": false,
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+ "typeIdentifier": "t_uint256",
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+ "src": "69351:20:7",
+ "stateVariable": false,
+ "storageLocation": "default",
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+ "mutability": "mutable",
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+ "scope": 8976,
+ "src": "69401:15:7",
+ "stateVariable": false,
+ "storageLocation": "default",
+ "typeDescriptions": {
+ "typeIdentifier": "t_uint256",
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+ "name": "uint256",
+ "nodeType": "ElementaryTypeName",
+ "src": "69401:7:7",
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+ "typeString": "uint256"
+ }
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+ "src": "69252:165:7"
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+ "src": "69467:7:7",
+ "stateVariable": false,
+ "storageLocation": "default",
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+ "typeIdentifier": "t_uint256",
+ "typeString": "uint256"
+ },
+ "typeName": {
+ "id": 8965,
+ "name": "uint256",
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+ "typeIdentifier": "t_uint256",
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+ "visibility": "internal"
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+ ],
+ "src": "69466:9:7"
+ },
+ "scope": 8977,
+ "src": "69230:349:7",
+ "stateMutability": "view",
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+ "visibility": "public"
+ }
+ ],
+ "scope": 8978,
+ "src": "157:69425:7"
+ }
+ ],
+ "src": "52:69532:7"
+ },
+ "compiler": {
+ "name": "solc",
+ "version": "0.6.12+commit.27d51765.Emscripten.clang"
+ },
+ "networks": {
+ "42": {
+ "events": {},
+ "links": {},
+ "address": "0xbc11EDec16f60B0B606921F88053C28f470E32d6",
+ "transactionHash": "0x24d52552794c7a4649d4b881db31094fc3c1fbbaf4718c04c9d4486304870b2c"
+ },
+ "8995": {
+ "events": {},
+ "links": {},
+ "address": "0xbc11EDec16f60B0B606921F88053C28f470E32d6",
+ "transactionHash": "0x24d52552794c7a4649d4b881db31094fc3c1fbbaf4718c04c9d4486304870b2c"
+ },
+ "1604964387852": {
+ "events": {},
+ "links": {},
+ "address": "0x2F8759fB1CF8Bbe0D1532B54c2143de2eF4BFC63",
+ "transactionHash": "0xabfbcd956a045c4ea82fbecbbde793829dbd8eda8433e34af02be26f95af0208"
+ },
+ "1604964469407": {
+ "events": {},
+ "links": {},
+ "address": "0xD44121A85018De957506F96B17a2A7719b16E6e0",
+ "transactionHash": "0x383e2d0b5371324bf0f040bdf53c3c2f6172b81c7d1a322c5ae8fb310b4ccd39"
+ },
+ "1604965528035": {
+ "events": {},
+ "links": {},
+ "address": "0xb242387159344b8620f9E7Affc284cb48EFB7c21",
+ "transactionHash": "0x3d19fbd65df5ffe30555f5164014dafca1aa48b52a9540094a3d87f0995b8cbc"
+ },
+ "1604965645554": {
+ "events": {},
+ "links": {},
+ "address": "0xD6037d8eFbE3618035E96d776754F1090F5273Fc",
+ "transactionHash": "0x3bc51eeb718827268d161f6689a57de296d05538fc2fc066b0a93f1fe0539101"
+ },
+ "1604965679541": {
+ "events": {},
+ "links": {},
+ "address": "0x8a2e520650DFC6A80f5891FBe928FA24Eb159772",
+ "transactionHash": "0xfc6563310e8c4fa7363b7127659cd66c376ab87682becda453b8cf37e93d9b69"
+ },
+ "1604965719492": {
+ "events": {},
+ "links": {},
+ "address": "0xbF5918e320aeF4FCE0a91f352F1Cbcd2Ed1c08D1",
+ "transactionHash": "0x047670bde378079fcb6cf649b53e1f86125380aa3f7b82ac04323a06617544ba"
+ },
+ "1604965760834": {
+ "events": {},
+ "links": {},
+ "address": "0x81Dd8B82b16D4552F222eE0B985DFa077e7B97CA",
+ "transactionHash": "0x7fc6bf0c25fd0dea62b704f018498d6a91ae9f8f4cacf4c47fab2b103a35d679"
+ }
+ },
+ "schemaVersion": "3.2.3",
+ "updatedAt": "2020-11-10T14:20:41.944Z",
+ "networkType": "ethereum",
+ "devdoc": {
+ "kind": "dev",
+ "methods": {
+ "balancedWeights(uint256,uint256,uint256,uint256,uint256)": {
+ "details": "The arbitrage incentive is to convert to the point where the on-chain price is equal to the off-chain price. We want this operation to also impact the primary reserve balance becoming equal to the primary reserve staked balance. In other words, we want the arbitrager to convert the difference between the reserve balance and the reserve staked balance. Formula input: - let t denote the primary reserve token staked balance - let s denote the primary reserve token balance - let r denote the secondary reserve token balance - let q denote the numerator of the rate between the tokens - let p denote the denominator of the rate between the tokens Where p primary tokens are equal to q secondary tokens Formula output: - compute x = W(t / r * q / p * log(s / t)) / log(s / t) - return x / (1 + x) as the weight of the primary reserve token - return 1 / (1 + x) as the weight of the secondary reserve token Where W is the Lambert W Function If the rate-provider provides the rates for a common unit, for example: - P = 2 ==> 2 primary reserve tokens = 1 ether - Q = 3 ==> 3 secondary reserve tokens = 1 ether Then you can simply use p = P and q = Q If the rate-provider provides the rates for a single unit, for example: - P = 2 ==> 1 primary reserve token = 2 ethers - Q = 3 ==> 1 secondary reserve token = 3 ethers Then you can simply use p = Q and q = P",
+ "params": {
+ "_primaryReserveBalance": "the primary reserve token balance",
+ "_primaryReserveStakedBalance": "the primary reserve token staked balance",
+ "_reserveRateDenominator": "the denominator of the rate between the tokens Note that `numerator / denominator` should represent the amount of secondary tokens equal to one primary token",
+ "_reserveRateNumerator": "the numerator of the rate between the tokens",
+ "_secondaryReserveBalance": "the secondary reserve token balance"
+ },
+ "returns": {
+ "_0": "the weight of the primary reserve token and the weight of the secondary reserve token, both in ppm (0-1000000)"
+ }
+ },
+ "calculateCrossConnectorReturn(uint256,uint32,uint256,uint32,uint256)": {
+ "details": "deprecated, backward compatibility"
+ },
+ "calculateCrossReserveReturn(uint256,uint32,uint256,uint32,uint256)": {
+ "details": "deprecated, backward compatibility"
+ },
+ "calculateFundCost(uint256,uint256,uint32,uint256)": {
+ "details": "deprecated, backward compatibility"
+ },
+ "calculateLiquidateReturn(uint256,uint256,uint32,uint256)": {
+ "details": "deprecated, backward compatibility"
+ },
+ "calculatePurchaseReturn(uint256,uint256,uint32,uint256)": {
+ "details": "deprecated, backward compatibility"
+ },
+ "calculateSaleReturn(uint256,uint256,uint32,uint256)": {
+ "details": "deprecated, backward compatibility"
+ },
+ "crossReserveRate(uint256,uint32,uint256,uint32,uint256)": {
+ "details": "deprecated, backward compatibility"
+ },
+ "crossReserveTargetAmount(uint256,uint32,uint256,uint32,uint256)": {
+ "details": "given two reserve balances/weights and a sell amount (in the first reserve token), calculates the target amount for a conversion from the source reserve token to the target reserve token Formula: return = _targetReserveBalance * (1 - (_sourceReserveBalance / (_sourceReserveBalance + _amount)) ^ (_sourceReserveWeight / _targetReserveWeight))",
+ "params": {
+ "_amount": "source reserve amount",
+ "_sourceReserveBalance": "source reserve balance",
+ "_sourceReserveWeight": "source reserve weight, represented in ppm (1-1000000)",
+ "_targetReserveBalance": "target reserve balance",
+ "_targetReserveWeight": "target reserve weight, represented in ppm (1-1000000)"
+ },
+ "returns": {
+ "_0": "target reserve amount"
+ }
+ },
+ "fundCost(uint256,uint256,uint32,uint256)": {
+ "details": "given a smart token supply, reserve balance, reserve ratio and an amount of requested smart tokens, calculates the amount of reserve tokens required for purchasing the given amount of smart tokens Formula: return = _reserveBalance * (((_supply + _amount) / _supply) ^ (MAX_WEIGHT / _reserveRatio) - 1)",
+ "params": {
+ "_amount": "requested amount of smart tokens",
+ "_reserveBalance": "reserve balance",
+ "_reserveRatio": "reserve ratio, represented in ppm (2-2000000)",
+ "_supply": "smart token supply"
+ },
+ "returns": {
+ "_0": "reserve token amount"
+ }
+ },
+ "fundSupplyAmount(uint256,uint256,uint32,uint256)": {
+ "details": "given a smart token supply, reserve balance, reserve ratio and an amount of reserve tokens to fund with, calculates the amount of smart tokens received for purchasing with the given amount of reserve tokens Formula: return = _supply * ((_amount / _reserveBalance + 1) ^ (_reserveRatio / MAX_WEIGHT) - 1)",
+ "params": {
+ "_amount": "amount of reserve tokens to fund with",
+ "_reserveBalance": "reserve balance",
+ "_reserveRatio": "reserve ratio, represented in ppm (2-2000000)",
+ "_supply": "smart token supply"
+ },
+ "returns": {
+ "_0": "smart token amount"
+ }
+ },
+ "init()": {
+ "details": "should be executed after construction (too large for the constructor)"
+ },
+ "liquidateRate(uint256,uint256,uint32,uint256)": {
+ "details": "deprecated, backward compatibility"
+ },
+ "liquidateReserveAmount(uint256,uint256,uint32,uint256)": {
+ "details": "given a smart token supply, reserve balance, reserve ratio and an amount of smart tokens to liquidate, calculates the amount of reserve tokens received for selling the given amount of smart tokens Formula: return = _reserveBalance * (1 - ((_supply - _amount) / _supply) ^ (MAX_WEIGHT / _reserveRatio))",
+ "params": {
+ "_amount": "amount of smart tokens to liquidate",
+ "_reserveBalance": "reserve balance",
+ "_reserveRatio": "reserve ratio, represented in ppm (2-2000000)",
+ "_supply": "smart token supply"
+ },
+ "returns": {
+ "_0": "reserve token amount"
+ }
+ },
+ "purchaseRate(uint256,uint256,uint32,uint256)": {
+ "details": "deprecated, backward compatibility"
+ },
+ "purchaseTargetAmount(uint256,uint256,uint32,uint256)": {
+ "details": "given a token supply, reserve balance, weight and a deposit amount (in the reserve token), calculates the target amount for a given conversion (in the main token) Formula: return = _supply * ((1 + _amount / _reserveBalance) ^ (_reserveWeight / 1000000) - 1)",
+ "params": {
+ "_amount": "amount of reserve tokens to get the target amount for",
+ "_reserveBalance": "reserve balance",
+ "_reserveWeight": "reserve weight, represented in ppm (1-1000000)",
+ "_supply": "smart token supply"
+ },
+ "returns": {
+ "_0": "smart token amount"
+ }
+ },
+ "saleRate(uint256,uint256,uint32,uint256)": {
+ "details": "deprecated, backward compatibility"
+ },
+ "saleTargetAmount(uint256,uint256,uint32,uint256)": {
+ "details": "given a token supply, reserve balance, weight and a sell amount (in the main token), calculates the target amount for a given conversion (in the reserve token) Formula: return = _reserveBalance * (1 - (1 - _amount / _supply) ^ (1000000 / _reserveWeight))",
+ "params": {
+ "_amount": "amount of smart tokens to get the target amount for",
+ "_reserveBalance": "reserve balance",
+ "_reserveWeight": "reserve weight, represented in ppm (1-1000000)",
+ "_supply": "smart token supply"
+ },
+ "returns": {
+ "_0": "reserve token amount"
+ }
+ }
+ },
+ "version": 1
+ },
+ "userdoc": {
+ "kind": "user",
+ "methods": {},
+ "version": 1
+ }
+}
\ No newline at end of file
diff --git a/apps/cic-eth/tests/testdata/bancor/BancorNetwork.json b/apps/cic-eth/tests/testdata/bancor/BancorNetwork.json
new file mode 100644
index 00000000..679d79ac
--- /dev/null
+++ b/apps/cic-eth/tests/testdata/bancor/BancorNetwork.json
@@ -0,0 +1,56968 @@
+{
+ "contractName": "BancorNetwork",
+ "abi": [
+ {
+ "inputs": [
+ {
+ "internalType": "contract IContractRegistry",
+ "name": "_registry",
+ "type": "address"
+ }
+ ],
+ "stateMutability": "nonpayable",
+ "type": "constructor"
+ },
+ {
+ "anonymous": false,
+ "inputs": [
+ {
+ "indexed": true,
+ "internalType": "contract IConverterAnchor",
+ "name": "_smartToken",
+ "type": "address"
+ },
+ {
+ "indexed": true,
+ "internalType": "contract IERC20Token",
+ "name": "_fromToken",
+ "type": "address"
+ },
+ {
+ "indexed": true,
+ "internalType": "contract IERC20Token",
+ "name": "_toToken",
+ "type": "address"
+ },
+ {
+ "indexed": false,
+ "internalType": "uint256",
+ "name": "_fromAmount",
+ "type": "uint256"
+ },
+ {
+ "indexed": false,
+ "internalType": "uint256",
+ "name": "_toAmount",
+ "type": "uint256"
+ },
+ {
+ "indexed": false,
+ "internalType": "address",
+ "name": "_trader",
+ "type": "address"
+ }
+ ],
+ "name": "Conversion",
+ "type": "event"
+ },
+ {
+ "anonymous": false,
+ "inputs": [
+ {
+ "indexed": true,
+ "internalType": "address",
+ "name": "_prevOwner",
+ "type": "address"
+ },
+ {
+ "indexed": true,
+ "internalType": "address",
+ "name": "_newOwner",
+ "type": "address"
+ }
+ ],
+ "name": "OwnerUpdate",
+ "type": "event"
+ },
+ {
+ "inputs": [],
+ "name": "acceptOwnership",
+ "outputs": [],
+ "stateMutability": "nonpayable",
+ "type": "function"
+ },
+ {
+ "inputs": [
+ {
+ "internalType": "contract IERC20Token",
+ "name": "",
+ "type": "address"
+ }
+ ],
+ "name": "etherTokens",
+ "outputs": [
+ {
+ "internalType": "bool",
+ "name": "",
+ "type": "bool"
+ }
+ ],
+ "stateMutability": "view",
+ "type": "function",
+ "constant": true
+ },
+ {
+ "inputs": [],
+ "name": "maxAffiliateFee",
+ "outputs": [
+ {
+ "internalType": "uint256",
+ "name": "",
+ "type": "uint256"
+ }
+ ],
+ "stateMutability": "view",
+ "type": "function",
+ "constant": true
+ },
+ {
+ "inputs": [],
+ "name": "newOwner",
+ "outputs": [
+ {
+ "internalType": "address",
+ "name": "",
+ "type": "address"
+ }
+ ],
+ "stateMutability": "view",
+ "type": "function",
+ "constant": true
+ },
+ {
+ "inputs": [],
+ "name": "onlyOwnerCanUpdateRegistry",
+ "outputs": [
+ {
+ "internalType": "bool",
+ "name": "",
+ "type": "bool"
+ }
+ ],
+ "stateMutability": "view",
+ "type": "function",
+ "constant": true
+ },
+ {
+ "inputs": [],
+ "name": "owner",
+ "outputs": [
+ {
+ "internalType": "address",
+ "name": "",
+ "type": "address"
+ }
+ ],
+ "stateMutability": "view",
+ "type": "function",
+ "constant": true
+ },
+ {
+ "inputs": [],
+ "name": "prevRegistry",
+ "outputs": [
+ {
+ "internalType": "contract IContractRegistry",
+ "name": "",
+ "type": "address"
+ }
+ ],
+ "stateMutability": "view",
+ "type": "function",
+ "constant": true
+ },
+ {
+ "inputs": [],
+ "name": "registry",
+ "outputs": [
+ {
+ "internalType": "contract IContractRegistry",
+ "name": "",
+ "type": "address"
+ }
+ ],
+ "stateMutability": "view",
+ "type": "function",
+ "constant": true
+ },
+ {
+ "inputs": [],
+ "name": "restoreRegistry",
+ "outputs": [],
+ "stateMutability": "nonpayable",
+ "type": "function"
+ },
+ {
+ "inputs": [
+ {
+ "internalType": "bool",
+ "name": "_onlyOwnerCanUpdateRegistry",
+ "type": "bool"
+ }
+ ],
+ "name": "restrictRegistryUpdate",
+ "outputs": [],
+ "stateMutability": "nonpayable",
+ "type": "function"
+ },
+ {
+ "inputs": [
+ {
+ "internalType": "address",
+ "name": "_newOwner",
+ "type": "address"
+ }
+ ],
+ "name": "transferOwnership",
+ "outputs": [],
+ "stateMutability": "nonpayable",
+ "type": "function"
+ },
+ {
+ "inputs": [],
+ "name": "updateRegistry",
+ "outputs": [],
+ "stateMutability": "nonpayable",
+ "type": "function"
+ },
+ {
+ "inputs": [
+ {
+ "internalType": "contract IERC20Token",
+ "name": "_token",
+ "type": "address"
+ },
+ {
+ "internalType": "address",
+ "name": "_to",
+ "type": "address"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_amount",
+ "type": "uint256"
+ }
+ ],
+ "name": "withdrawTokens",
+ "outputs": [],
+ "stateMutability": "nonpayable",
+ "type": "function"
+ },
+ {
+ "inputs": [
+ {
+ "internalType": "uint256",
+ "name": "_maxAffiliateFee",
+ "type": "uint256"
+ }
+ ],
+ "name": "setMaxAffiliateFee",
+ "outputs": [],
+ "stateMutability": "nonpayable",
+ "type": "function"
+ },
+ {
+ "inputs": [
+ {
+ "internalType": "contract IEtherToken",
+ "name": "_token",
+ "type": "address"
+ },
+ {
+ "internalType": "bool",
+ "name": "_register",
+ "type": "bool"
+ }
+ ],
+ "name": "registerEtherToken",
+ "outputs": [],
+ "stateMutability": "nonpayable",
+ "type": "function"
+ },
+ {
+ "inputs": [
+ {
+ "internalType": "contract IERC20Token",
+ "name": "_sourceToken",
+ "type": "address"
+ },
+ {
+ "internalType": "contract IERC20Token",
+ "name": "_targetToken",
+ "type": "address"
+ }
+ ],
+ "name": "conversionPath",
+ "outputs": [
+ {
+ "internalType": "address[]",
+ "name": "",
+ "type": "address[]"
+ }
+ ],
+ "stateMutability": "view",
+ "type": "function",
+ "constant": true
+ },
+ {
+ "inputs": [
+ {
+ "internalType": "address[]",
+ "name": "_path",
+ "type": "address[]"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_amount",
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+ ],
+ "name": "rateByPath",
+ "outputs": [
+ {
+ "internalType": "uint256",
+ "name": "",
+ "type": "uint256"
+ }
+ ],
+ "stateMutability": "view",
+ "type": "function",
+ "constant": true
+ },
+ {
+ "inputs": [
+ {
+ "internalType": "address[]",
+ "name": "_path",
+ "type": "address[]"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_amount",
+ "type": "uint256"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_minReturn",
+ "type": "uint256"
+ },
+ {
+ "internalType": "address payable",
+ "name": "_beneficiary",
+ "type": "address"
+ },
+ {
+ "internalType": "address",
+ "name": "_affiliateAccount",
+ "type": "address"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_affiliateFee",
+ "type": "uint256"
+ }
+ ],
+ "name": "convertByPath",
+ "outputs": [
+ {
+ "internalType": "uint256",
+ "name": "",
+ "type": "uint256"
+ }
+ ],
+ "stateMutability": "payable",
+ "type": "function",
+ "payable": true
+ },
+ {
+ "inputs": [
+ {
+ "internalType": "address[]",
+ "name": "_path",
+ "type": "address[]"
+ },
+ {
+ "internalType": "uint256",
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+ },
+ {
+ "internalType": "uint256",
+ "name": "_minReturn",
+ "type": "uint256"
+ },
+ {
+ "internalType": "bytes32",
+ "name": "_targetBlockchain",
+ "type": "bytes32"
+ },
+ {
+ "internalType": "bytes32",
+ "name": "_targetAccount",
+ "type": "bytes32"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_conversionId",
+ "type": "uint256"
+ }
+ ],
+ "name": "xConvert",
+ "outputs": [
+ {
+ "internalType": "uint256",
+ "name": "",
+ "type": "uint256"
+ }
+ ],
+ "stateMutability": "payable",
+ "type": "function",
+ "payable": true
+ },
+ {
+ "inputs": [
+ {
+ "internalType": "address[]",
+ "name": "_path",
+ "type": "address[]"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_amount",
+ "type": "uint256"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_minReturn",
+ "type": "uint256"
+ },
+ {
+ "internalType": "bytes32",
+ "name": "_targetBlockchain",
+ "type": "bytes32"
+ },
+ {
+ "internalType": "bytes32",
+ "name": "_targetAccount",
+ "type": "bytes32"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_conversionId",
+ "type": "uint256"
+ },
+ {
+ "internalType": "address",
+ "name": "_affiliateAccount",
+ "type": "address"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_affiliateFee",
+ "type": "uint256"
+ }
+ ],
+ "name": "xConvert2",
+ "outputs": [
+ {
+ "internalType": "uint256",
+ "name": "",
+ "type": "uint256"
+ }
+ ],
+ "stateMutability": "payable",
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+ "payable": true
+ },
+ {
+ "inputs": [
+ {
+ "internalType": "address[]",
+ "name": "_path",
+ "type": "address[]"
+ },
+ {
+ "internalType": "contract IBancorX",
+ "name": "_bancorX",
+ "type": "address"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_conversionId",
+ "type": "uint256"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_minReturn",
+ "type": "uint256"
+ },
+ {
+ "internalType": "address payable",
+ "name": "_beneficiary",
+ "type": "address"
+ }
+ ],
+ "name": "completeXConversion",
+ "outputs": [
+ {
+ "internalType": "uint256",
+ "name": "",
+ "type": "uint256"
+ }
+ ],
+ "stateMutability": "nonpayable",
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+ {
+ "inputs": [
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+ "internalType": "address[]",
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+ "type": "address[]"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_amount",
+ "type": "uint256"
+ }
+ ],
+ "name": "getReturnByPath",
+ "outputs": [
+ {
+ "internalType": "uint256",
+ "name": "",
+ "type": "uint256"
+ },
+ {
+ "internalType": "uint256",
+ "name": "",
+ "type": "uint256"
+ }
+ ],
+ "stateMutability": "view",
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+ "constant": true
+ },
+ {
+ "inputs": [
+ {
+ "internalType": "address[]",
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+ "type": "address[]"
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+ {
+ "internalType": "uint256",
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+ "type": "uint256"
+ },
+ {
+ "internalType": "uint256",
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+ ],
+ "name": "convert",
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+ {
+ "internalType": "uint256",
+ "name": "",
+ "type": "uint256"
+ }
+ ],
+ "stateMutability": "payable",
+ "type": "function",
+ "payable": true
+ },
+ {
+ "inputs": [
+ {
+ "internalType": "address[]",
+ "name": "_path",
+ "type": "address[]"
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+ {
+ "internalType": "uint256",
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+ {
+ "internalType": "uint256",
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+ "type": "uint256"
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+ {
+ "internalType": "address",
+ "name": "_affiliateAccount",
+ "type": "address"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_affiliateFee",
+ "type": "uint256"
+ }
+ ],
+ "name": "convert2",
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+ {
+ "internalType": "uint256",
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+ "type": "uint256"
+ }
+ ],
+ "stateMutability": "payable",
+ "type": "function",
+ "payable": true
+ },
+ {
+ "inputs": [
+ {
+ "internalType": "address[]",
+ "name": "_path",
+ "type": "address[]"
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+ {
+ "internalType": "uint256",
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+ "type": "uint256"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_minReturn",
+ "type": "uint256"
+ },
+ {
+ "internalType": "address payable",
+ "name": "_beneficiary",
+ "type": "address"
+ }
+ ],
+ "name": "convertFor",
+ "outputs": [
+ {
+ "internalType": "uint256",
+ "name": "",
+ "type": "uint256"
+ }
+ ],
+ "stateMutability": "payable",
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+ "payable": true
+ },
+ {
+ "inputs": [
+ {
+ "internalType": "address[]",
+ "name": "_path",
+ "type": "address[]"
+ },
+ {
+ "internalType": "uint256",
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+ "type": "uint256"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_minReturn",
+ "type": "uint256"
+ },
+ {
+ "internalType": "address payable",
+ "name": "_beneficiary",
+ "type": "address"
+ },
+ {
+ "internalType": "address",
+ "name": "_affiliateAccount",
+ "type": "address"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_affiliateFee",
+ "type": "uint256"
+ }
+ ],
+ "name": "convertFor2",
+ "outputs": [
+ {
+ "internalType": "uint256",
+ "name": "",
+ "type": "uint256"
+ }
+ ],
+ "stateMutability": "payable",
+ "type": "function",
+ "payable": true
+ },
+ {
+ "inputs": [
+ {
+ "internalType": "address[]",
+ "name": "_path",
+ "type": "address[]"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_amount",
+ "type": "uint256"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_minReturn",
+ "type": "uint256"
+ }
+ ],
+ "name": "claimAndConvert",
+ "outputs": [
+ {
+ "internalType": "uint256",
+ "name": "",
+ "type": "uint256"
+ }
+ ],
+ "stateMutability": "nonpayable",
+ "type": "function"
+ },
+ {
+ "inputs": [
+ {
+ "internalType": "address[]",
+ "name": "_path",
+ "type": "address[]"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_amount",
+ "type": "uint256"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_minReturn",
+ "type": "uint256"
+ },
+ {
+ "internalType": "address",
+ "name": "_affiliateAccount",
+ "type": "address"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_affiliateFee",
+ "type": "uint256"
+ }
+ ],
+ "name": "claimAndConvert2",
+ "outputs": [
+ {
+ "internalType": "uint256",
+ "name": "",
+ "type": "uint256"
+ }
+ ],
+ "stateMutability": "nonpayable",
+ "type": "function"
+ },
+ {
+ "inputs": [
+ {
+ "internalType": "address[]",
+ "name": "_path",
+ "type": "address[]"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_amount",
+ "type": "uint256"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_minReturn",
+ "type": "uint256"
+ },
+ {
+ "internalType": "address payable",
+ "name": "_beneficiary",
+ "type": "address"
+ }
+ ],
+ "name": "claimAndConvertFor",
+ "outputs": [
+ {
+ "internalType": "uint256",
+ "name": "",
+ "type": "uint256"
+ }
+ ],
+ "stateMutability": "nonpayable",
+ "type": "function"
+ },
+ {
+ "inputs": [
+ {
+ "internalType": "address[]",
+ "name": "_path",
+ "type": "address[]"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_amount",
+ "type": "uint256"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_minReturn",
+ "type": "uint256"
+ },
+ {
+ "internalType": "address payable",
+ "name": "_beneficiary",
+ "type": "address"
+ },
+ {
+ "internalType": "address",
+ "name": "_affiliateAccount",
+ "type": "address"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_affiliateFee",
+ "type": "uint256"
+ }
+ ],
+ "name": "claimAndConvertFor2",
+ "outputs": [
+ {
+ "internalType": "uint256",
+ "name": "",
+ "type": "uint256"
+ }
+ ],
+ "stateMutability": "nonpayable",
+ "type": "function"
+ }
+ ],
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payable\",\"name\":\"_beneficiary\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"_affiliateAccount\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"_affiliateFee\",\"type\":\"uint256\"}],\"name\":\"convertByPath\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"payable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address[]\",\"name\":\"_path\",\"type\":\"address[]\"},{\"internalType\":\"uint256\",\"name\":\"_amount\",\"type\":\"uint256\"},{\"internalType\":\"uint256\",\"name\":\"_minReturn\",\"type\":\"uint256\"},{\"internalType\":\"address payable\",\"name\":\"_beneficiary\",\"type\":\"address\"}],\"name\":\"convertFor\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"payable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address[]\",\"name\":\"_path\",\"type\":\"address[]\"},{\"internalType\":\"uint256\",\"name\":\"_amount\",\"type\":\"uint256\"},{\"internalType\":\"uint256\",\"name\":\"_minReturn\",\"type\":\"uint256\"},{\"internalType\":\"address payable\",\"name\":\"_beneficiary\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"_affiliateAccount\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"_affiliateFee\",\"type\":\"uint256\"}],\"name\":\"convertFor2\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"payable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"contract IERC20Token\",\"name\":\"\",\"type\":\"address\"}],\"name\":\"etherTokens\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address[]\",\"name\":\"_path\",\"type\":\"address[]\"},{\"internalType\":\"uint256\",\"name\":\"_amount\",\"type\":\"uint256\"}],\"name\":\"getReturnByPath\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"},{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"maxAffiliateFee\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"newOwner\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"onlyOwnerCanUpdateRegistry\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"owner\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"prevRegistry\",\"outputs\":[{\"internalType\":\"contract IContractRegistry\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address[]\",\"name\":\"_path\",\"type\":\"address[]\"},{\"internalType\":\"uint256\",\"name\":\"_amount\",\"type\":\"uint256\"}],\"name\":\"rateByPath\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"contract IEtherToken\",\"name\":\"_token\",\"type\":\"address\"},{\"internalType\":\"bool\",\"name\":\"_register\",\"type\":\"bool\"}],\"name\":\"registerEtherToken\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"registry\",\"outputs\":[{\"internalType\":\"contract IContractRegistry\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"restoreRegistry\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"bool\",\"name\":\"_onlyOwnerCanUpdateRegistry\",\"type\":\"bool\"}],\"name\":\"restrictRegistryUpdate\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"_maxAffiliateFee\",\"type\":\"uint256\"}],\"name\":\"setMaxAffiliateFee\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"_newOwner\",\"type\":\"address\"}],\"name\":\"transferOwnership\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"updateRegistry\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"contract IERC20Token\",\"name\":\"_token\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"_to\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"_amount\",\"type\":\"uint256\"}],\"name\":\"withdrawTokens\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address[]\",\"name\":\"_path\",\"type\":\"address[]\"},{\"internalType\":\"uint256\",\"name\":\"_amount\",\"type\":\"uint256\"},{\"internalType\":\"uint256\",\"name\":\"_minReturn\",\"type\":\"uint256\"},{\"internalType\":\"bytes32\",\"name\":\"_targetBlockchain\",\"type\":\"bytes32\"},{\"internalType\":\"bytes32\",\"name\":\"_targetAccount\",\"type\":\"bytes32\"},{\"internalType\":\"uint256\",\"name\":\"_conversionId\",\"type\":\"uint256\"}],\"name\":\"xConvert\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"payable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address[]\",\"name\":\"_path\",\"type\":\"address[]\"},{\"internalType\":\"uint256\",\"name\":\"_amount\",\"type\":\"uint256\"},{\"internalType\":\"uint256\",\"name\":\"_minReturn\",\"type\":\"uint256\"},{\"internalType\":\"bytes32\",\"name\":\"_targetBlockchain\",\"type\":\"bytes32\"},{\"internalType\":\"bytes32\",\"name\":\"_targetAccount\",\"type\":\"bytes32\"},{\"internalType\":\"uint256\",\"name\":\"_conversionId\",\"type\":\"uint256\"},{\"internalType\":\"address\",\"name\":\"_affiliateAccount\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"_affiliateFee\",\"type\":\"uint256\"}],\"name\":\"xConvert2\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"payable\",\"type\":\"function\"}],\"devdoc\":{\"details\":\"The BancorNetwork contract is the main entry point for Bancor token conversions. It also allows for the conversion of any token in the Bancor Network to any other token in a single transaction by providing a conversion path. A note on Conversion Path: Conversion path is a data structure that is used when converting a token to another token in the Bancor Network, when the conversion cannot necessarily be done by a single converter and might require multiple 'hops'. The path defines which converters should be used and what kind of conversion should be done in each step. The path format doesn't include complex structure; instead, it is represented by a single array in which each 'hop' is represented by a 2-tuple - converter anchor & target token. In addition, the first element is always the source token. The converter anchor is only used as a pointer to a converter (since converter addresses are more likely to change as opposed to anchor addresses). Format: [source token, converter anchor, target token, converter anchor, target token...]\",\"events\":{\"Conversion(address,address,address,uint256,uint256,address)\":{\"details\":\"triggered when a conversion between two tokens occurs\",\"params\":{\"_fromAmount\":\"amount converted, in the source token\",\"_fromToken\":\"source ERC20 token\",\"_smartToken\":\"anchor governed by the converter\",\"_toAmount\":\"amount returned, minus conversion fee\",\"_toToken\":\"target ERC20 token\",\"_trader\":\"wallet that initiated the trade\"}}},\"kind\":\"dev\",\"methods\":{\"acceptOwnership()\":{\"details\":\"used by a new owner to accept an ownership transfer\"},\"claimAndConvert(address[],uint256,uint256)\":{\"details\":\"deprecated, backward compatibility\"},\"claimAndConvert2(address[],uint256,uint256,address,uint256)\":{\"details\":\"deprecated, backward compatibility\"},\"claimAndConvertFor(address[],uint256,uint256,address)\":{\"details\":\"deprecated, backward compatibility\"},\"claimAndConvertFor2(address[],uint256,uint256,address,address,uint256)\":{\"details\":\"deprecated, backward compatibility\"},\"completeXConversion(address[],address,uint256,uint256,address)\":{\"details\":\"allows a user to convert a token that was sent from another blockchain into any other token on the BancorNetwork ideally this transaction is created before the previous conversion is even complete, so so the input amount isn't known at that point - the amount is actually take from the BancorX contract directly by specifying the conversion id\",\"params\":{\"_bancorX\":\"address of the BancorX contract for the source token\",\"_beneficiary\":\"wallet to receive the conversion result\",\"_conversionId\":\"pre-determined unique (if non zero) id which refers to this conversion\",\"_minReturn\":\"if the conversion results in an amount smaller than the minimum return - it is cancelled, must be nonzero\",\"_path\":\"conversion path\"},\"returns\":{\"_0\":\"amount of tokens received from the conversion\"}},\"constructor\":{\"details\":\"initializes a new BancorNetwork instance\",\"params\":{\"_registry\":\"address of a contract registry contract\"}},\"conversionPath(address,address)\":{\"details\":\"returns the conversion path between two tokens in the network note that this method is quite expensive in terms of gas and should generally be called off-chain\",\"params\":{\"_sourceToken\":\"source token address\",\"_targetToken\":\"target token address\"},\"returns\":{\"_0\":\"conversion path between the two tokens\"}},\"convert(address[],uint256,uint256)\":{\"details\":\"deprecated, backward compatibility\"},\"convert2(address[],uint256,uint256,address,uint256)\":{\"details\":\"deprecated, backward compatibility\"},\"convertByPath(address[],uint256,uint256,address,address,uint256)\":{\"details\":\"converts the token to any other token in the bancor network by following a predefined conversion path and transfers the result tokens to a target account affiliate account/fee can also be passed in to receive a conversion fee (on top of the liquidity provider fees) note that the network should already have been given allowance of the source token (if not ETH)\",\"params\":{\"_affiliateAccount\":\"wallet address to receive the affiliate fee or 0x0 to disable affiliate fee\",\"_affiliateFee\":\"affiliate fee in PPM or 0 to disable affiliate fee\",\"_amount\":\"amount to convert from, in the source token\",\"_beneficiary\":\"account that will receive the conversion result or 0x0 to send the result to the sender account\",\"_minReturn\":\"if the conversion results in an amount smaller than the minimum return - it is cancelled, must be greater than zero\",\"_path\":\"conversion path, see conversion path format above\"},\"returns\":{\"_0\":\"amount of tokens received from the conversion\"}},\"convertFor(address[],uint256,uint256,address)\":{\"details\":\"deprecated, backward compatibility\"},\"convertFor2(address[],uint256,uint256,address,address,uint256)\":{\"details\":\"deprecated, backward compatibility\"},\"getReturnByPath(address[],uint256)\":{\"details\":\"deprecated, backward compatibility\"},\"rateByPath(address[],uint256)\":{\"details\":\"returns the expected target amount of converting a given amount on a given path note that there is no support for circular paths\",\"params\":{\"_amount\":\"amount of _path[0] tokens received from the sender\",\"_path\":\"conversion path (see conversion path format above)\"},\"returns\":{\"_0\":\"expected target amount\"}},\"registerEtherToken(address,bool)\":{\"details\":\"allows the owner to register/unregister ether tokens\",\"params\":{\"_register\":\"true to register, false to unregister\",\"_token\":\"ether token contract address\"}},\"restoreRegistry()\":{\"details\":\"restores the previous contract-registry\"},\"restrictRegistryUpdate(bool)\":{\"details\":\"restricts the permission to update the contract-registry\",\"params\":{\"_onlyOwnerCanUpdateRegistry\":\"indicates whether or not permission is restricted to owner only\"}},\"setMaxAffiliateFee(uint256)\":{\"details\":\"allows the owner to update the maximum affiliate-fee\",\"params\":{\"_maxAffiliateFee\":\"maximum affiliate-fee\"}},\"transferOwnership(address)\":{\"details\":\"allows transferring the contract ownership the new owner still needs to accept the transfer can only be called by the contract owner\",\"params\":{\"_newOwner\":\"new contract owner\"}},\"updateRegistry()\":{\"details\":\"updates to the new contract-registry\"},\"withdrawTokens(address,address,uint256)\":{\"details\":\"withdraws tokens held by the contract and sends them to an account can only be called by the owner\",\"params\":{\"_amount\":\"amount to withdraw\",\"_to\":\"account to receive the new amount\",\"_token\":\"ERC20 token contract address\"}},\"xConvert(address[],uint256,uint256,bytes32,bytes32,uint256)\":{\"details\":\"converts any other token to BNT in the bancor network by following a predefined conversion path and transfers the result to an account on a different blockchain note that the network should already have been given allowance of the source token (if not ETH)\",\"params\":{\"_amount\":\"amount to convert from, in the source token\",\"_conversionId\":\"pre-determined unique (if non zero) id which refers to this transaction\",\"_minReturn\":\"if the conversion results in an amount smaller than the minimum return - it is cancelled, must be greater than zero\",\"_path\":\"conversion path, see conversion path format above\",\"_targetAccount\":\"address/account on the target blockchain to send the BNT to\",\"_targetBlockchain\":\"blockchain BNT will be issued on\"},\"returns\":{\"_0\":\"the amount of BNT received from this conversion\"}},\"xConvert2(address[],uint256,uint256,bytes32,bytes32,uint256,address,uint256)\":{\"details\":\"converts any other token to BNT in the bancor network by following a predefined conversion path and transfers the result to an account on a different blockchain note that the network should already have been given allowance of the source token (if not ETH)\",\"params\":{\"_affiliateAccount\":\"affiliate account\",\"_affiliateFee\":\"affiliate fee in PPM\",\"_amount\":\"amount to convert from, in the source token\",\"_conversionId\":\"pre-determined unique (if non zero) id which refers to this transaction\",\"_minReturn\":\"if the conversion results in an amount smaller than the minimum return - it is cancelled, must be greater than zero\",\"_path\":\"conversion path, see conversion path format above\",\"_targetAccount\":\"address/account on the target blockchain to send the BNT to\",\"_targetBlockchain\":\"blockchain BNT will be issued on\"},\"returns\":{\"_0\":\"the amount of BNT received from this conversion\"}}},\"version\":1},\"userdoc\":{\"kind\":\"user\",\"methods\":{},\"version\":1}},\"settings\":{\"compilationTarget\":{\"/home/lash/src/ext/cic/grassrootseconomics/bancor-contracts/solidity/contracts/BancorNetwork.sol\":\"BancorNetwork\"},\"evmVersion\":\"istanbul\",\"libraries\":{},\"metadata\":{\"bytecodeHash\":\"ipfs\"},\"optimizer\":{\"enabled\":true,\"runs\":200},\"remappings\":[]},\"sources\":{\"/home/lash/src/ext/cic/grassrootseconomics/bancor-contracts/solidity/contracts/BancorNetwork.sol\":{\"keccak256\":\"0xb1817f3d45dd66177f17cf45f1b660186ee35575222a11c9bc0e0d44b32846ea\",\"license\":\"SEE LICENSE IN LICENSE\",\"urls\":[\"bzz-raw://ce648a9b8038bb11d1ed091a16aa831a973ff2896ae9aae6b34cb9a8d0e02b00\",\"dweb:/ipfs/QmQKqVVXV6dDBd8saigyEALeLwjG8nhqK8wLRqDGaKSDV6\"]},\"/home/lash/src/ext/cic/grassrootseconomics/bancor-contracts/solidity/contracts/IConversionPathFinder.sol\":{\"keccak256\":\"0x2d0f5b57bc448581a6e2296486ca618851138f40928049d75220623605915d7b\",\"license\":\"SEE LICENSE IN LICENSE\",\"urls\":[\"bzz-raw://2182eb05da8442792a5f3f4d8cdb2cf0bf9e952ca02638f3880cc59d5fd6dcb6\",\"dweb:/ipfs/QmSH9uWh6zTQkcBgD7VGGSzYW9DjdBDkUZUZ6zhzPWPPDz\"]},\"/home/lash/src/ext/cic/grassrootseconomics/bancor-contracts/solidity/contracts/bancorx/interfaces/IBancorX.sol\":{\"keccak256\":\"0x65b5780d710159c7540078c38406c53db37a349fb468a0bf21bdc6262e497951\",\"license\":\"SEE LICENSE IN LICENSE\",\"urls\":[\"bzz-raw://3df931a12770d10a22451326e38ae9d405d3e2716bdbdd6306b5e2361f6fe511\",\"dweb:/ipfs/QmcRBSaFLz516dAEqb8ZEiyx8ZTHZZ6rfxHn5roL2fHA3S\"]},\"/home/lash/src/ext/cic/grassrootseconomics/bancor-contracts/solidity/contracts/converter/interfaces/IBancorFormula.sol\":{\"keccak256\":\"0xf30c95034af4c4ec6e8a859e90cf7a0bada29a805ede76e04644107a7c677c4e\",\"license\":\"SEE LICENSE IN LICENSE\",\"urls\":[\"bzz-raw://b48070d4abf9c4a08c39e6c494fa9efd7389aa7f8b61b283c9ba02062b1c59b6\",\"dweb:/ipfs/Qme6U7SpspFPzMH2mTyKsXCnJEAgg1vX6NNFzuykbVSY5R\"]},\"/home/lash/src/ext/cic/grassrootseconomics/bancor-contracts/solidity/contracts/converter/interfaces/IConverter.sol\":{\"keccak256\":\"0x18b0d73a3d5ee951ede1b3f840ed35b40570e34975703079a4451555f4dd089b\",\"license\":\"SEE LICENSE IN LICENSE\",\"urls\":[\"bzz-raw://1cd7263f1ef60793e3929509150420037df9a1194c3d0f40bb2ff5516d6a373f\",\"dweb:/ipfs/QmNUbsZt2rzWPjStYycgz3vMbNP4VrAqZPRAK39QNqUoos\"]},\"/home/lash/src/ext/cic/grassrootseconomics/bancor-contracts/solidity/contracts/converter/interfaces/IConverterAnchor.sol\":{\"keccak256\":\"0x9448cdbe90293fb5c1a0808b77af8754a1025b59c45f432eee01f659361a6115\",\"license\":\"SEE LICENSE IN LICENSE\",\"urls\":[\"bzz-raw://1ef2bb2e1543c9324daf7f3fd086a57efb45b89f3d62b9d7a9fc78c138d24dbc\",\"dweb:/ipfs/QmVcXDib3K6xYJMBNxawmo4krJGiDfxb5oL64Lc3pi14XK\"]},\"/home/lash/src/ext/cic/grassrootseconomics/bancor-contracts/solidity/contracts/token/interfaces/IERC20Token.sol\":{\"keccak256\":\"0xe6f988c3156e88258474526a541d5a42b6a9adae98b04177a059d9f723bc82cd\",\"license\":\"SEE LICENSE IN LICENSE\",\"urls\":[\"bzz-raw://9a6eb77a5b9ce70995a11a6e48ac3985a4c70896fe5fe04d46146ad7c1c83ea3\",\"dweb:/ipfs/QmYvGSveZFG51tghwkVuu6eK9Jy8frHpfLxHTMyvNZN461\"]},\"/home/lash/src/ext/cic/grassrootseconomics/bancor-contracts/solidity/contracts/token/interfaces/IEtherToken.sol\":{\"keccak256\":\"0x6ed324da616d70af0b21fa073b1e5329b430e38b470177633a69710eff3da893\",\"license\":\"SEE LICENSE IN LICENSE\",\"urls\":[\"bzz-raw://44f94aa59c67de636423cbdef82efb7d8e0562e73dfc9049a48054156aebaf14\",\"dweb:/ipfs/Qmdn8KAP54s7X3J6TCoZPhCpS19aCQzFYZuFABugJ5JA5D\"]},\"/home/lash/src/ext/cic/grassrootseconomics/bancor-contracts/solidity/contracts/token/interfaces/ISmartToken.sol\":{\"keccak256\":\"0x5cfc15e7a23a9872059b0cea4d2ae902c3fc074a39e1c645036ce38ad47881ec\",\"license\":\"SEE LICENSE IN LICENSE\",\"urls\":[\"bzz-raw://890ee09d24de5778e34c4c27d1377d83d378e8f4a13fcb94d5102f61d4749cce\",\"dweb:/ipfs/QmT89f61fmsUN1BVdebKxUc5VU7sitiP33LNk7TTtF18oj\"]},\"/home/lash/src/ext/cic/grassrootseconomics/bancor-contracts/solidity/contracts/utility/ContractRegistryClient.sol\":{\"keccak256\":\"0x74caf88eff1cb113ad8277df9ba7933a6f1e0deea8fd1855157def3be833b859\",\"license\":\"SEE LICENSE IN LICENSE\",\"urls\":[\"bzz-raw://c7793c9f245736cd8413bc8c4b5c40b67949cbee32289a16d29c83cf59396ad6\",\"dweb:/ipfs/QmWony7b1buUrGnE32gjLAnSwkBYMrJ68vUcCwDMmp3MbJ\"]},\"/home/lash/src/ext/cic/grassrootseconomics/bancor-contracts/solidity/contracts/utility/Owned.sol\":{\"keccak256\":\"0x6ef69d9dcc80a8a36d5eb37783375cd5e4831c6d20c723fa6f6b6a06c0aeb53d\",\"license\":\"SEE LICENSE IN LICENSE\",\"urls\":[\"bzz-raw://5a5d087e2c5b47739615ef22e1f29749de44b43c9a37cfae32b3dfc498a258c4\",\"dweb:/ipfs/Qmd1mXKEQbmBxqHk326LGVzNoayXsam8gZNecknnYpBnyh\"]},\"/home/lash/src/ext/cic/grassrootseconomics/bancor-contracts/solidity/contracts/utility/ReentrancyGuard.sol\":{\"keccak256\":\"0x5ea87c10dd6e7e79212da712eb5f079c03361e6c96e299a4ffd9aaee8d6a3899\",\"license\":\"SEE LICENSE IN LICENSE\",\"urls\":[\"bzz-raw://882aac64a791df35a942480e6ce611d1acb399af4ac0c4ef0288965c3785bf50\",\"dweb:/ipfs/QmeWeYYFh5HZAzJ1SzPHoTcPvZrE4NPUVfmjvH9Q3m36Gg\"]},\"/home/lash/src/ext/cic/grassrootseconomics/bancor-contracts/solidity/contracts/utility/SafeMath.sol\":{\"keccak256\":\"0x1ab7391a19ca8a3ad2f3c4a1074e080d4d76dfdb834637bdd0c1e6b6acdf28af\",\"license\":\"SEE LICENSE IN 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+ "source": "// SPDX-License-Identifier: SEE LICENSE IN LICENSE\r\npragma solidity 0.6.12;\r\nimport \"./IConversionPathFinder.sol\";\r\nimport \"./converter/interfaces/IConverter.sol\";\r\nimport \"./converter/interfaces/IConverterAnchor.sol\";\r\nimport \"./converter/interfaces/IBancorFormula.sol\";\r\nimport \"./utility/ContractRegistryClient.sol\";\r\nimport \"./utility/ReentrancyGuard.sol\";\r\nimport \"./utility/TokenHolder.sol\";\r\nimport \"./utility/SafeMath.sol\";\r\nimport \"./token/interfaces/IEtherToken.sol\";\r\nimport \"./token/interfaces/ISmartToken.sol\";\r\nimport \"./bancorx/interfaces/IBancorX.sol\";\r\n\r\n// interface of older converters for backward compatibility\r\ninterface ILegacyConverter {\r\n function change(IERC20Token _sourceToken, IERC20Token _targetToken, uint256 _amount, uint256 _minReturn) external returns (uint256);\r\n}\r\n\r\n/**\r\n * @dev The BancorNetwork contract is the main entry point for Bancor token conversions.\r\n * It also allows for the conversion of any token in the Bancor Network to any other token in a single\r\n * transaction by providing a conversion path.\r\n *\r\n * A note on Conversion Path: Conversion path is a data structure that is used when converting a token\r\n * to another token in the Bancor Network, when the conversion cannot necessarily be done by a single\r\n * converter and might require multiple 'hops'.\r\n * The path defines which converters should be used and what kind of conversion should be done in each step.\r\n *\r\n * The path format doesn't include complex structure; instead, it is represented by a single array\r\n * in which each 'hop' is represented by a 2-tuple - converter anchor & target token.\r\n * In addition, the first element is always the source token.\r\n * The converter anchor is only used as a pointer to a converter (since converter addresses are more\r\n * likely to change as opposed to anchor addresses).\r\n *\r\n * Format:\r\n * [source token, converter anchor, target token, converter anchor, target token...]\r\n*/\r\ncontract BancorNetwork is TokenHolder, ContractRegistryClient, ReentrancyGuard {\r\n using SafeMath for uint256;\r\n\r\n uint256 private constant PPM_RESOLUTION = 1000000;\r\n IERC20Token private constant ETH_RESERVE_ADDRESS = IERC20Token(0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE);\r\n\r\n struct ConversionStep {\r\n IConverter converter;\r\n IConverterAnchor anchor;\r\n IERC20Token sourceToken;\r\n IERC20Token targetToken;\r\n address payable beneficiary;\r\n bool isV28OrHigherConverter;\r\n bool processAffiliateFee;\r\n }\r\n\r\n uint256 public maxAffiliateFee = 30000; // maximum affiliate-fee\r\n\r\n mapping (IERC20Token => bool) public etherTokens; // list of all supported ether tokens\r\n\r\n /**\r\n * @dev triggered when a conversion between two tokens occurs\r\n *\r\n * @param _smartToken anchor governed by the converter\r\n * @param _fromToken source ERC20 token\r\n * @param _toToken target ERC20 token\r\n * @param _fromAmount amount converted, in the source token\r\n * @param _toAmount amount returned, minus conversion fee\r\n * @param _trader wallet that initiated the trade\r\n */\r\n event Conversion(\r\n IConverterAnchor indexed _smartToken,\r\n IERC20Token indexed _fromToken,\r\n IERC20Token indexed _toToken,\r\n uint256 _fromAmount,\r\n uint256 _toAmount,\r\n address _trader\r\n );\r\n\r\n /**\r\n * @dev initializes a new BancorNetwork instance\r\n *\r\n * @param _registry address of a contract registry contract\r\n */\r\n constructor(IContractRegistry _registry) ContractRegistryClient(_registry) public {\r\n etherTokens[ETH_RESERVE_ADDRESS] = true;\r\n }\r\n\r\n /**\r\n * @dev allows the owner to update the maximum affiliate-fee\r\n *\r\n * @param _maxAffiliateFee maximum affiliate-fee\r\n */\r\n function setMaxAffiliateFee(uint256 _maxAffiliateFee)\r\n public\r\n ownerOnly\r\n {\r\n require(_maxAffiliateFee <= PPM_RESOLUTION, \"ERR_INVALID_AFFILIATE_FEE\");\r\n maxAffiliateFee = _maxAffiliateFee;\r\n }\r\n\r\n /**\r\n * @dev allows the owner to register/unregister ether tokens\r\n *\r\n * @param _token ether token contract address\r\n * @param _register true to register, false to unregister\r\n */\r\n function registerEtherToken(IEtherToken _token, bool _register)\r\n public\r\n ownerOnly\r\n validAddress(address(_token))\r\n notThis(address(_token))\r\n {\r\n etherTokens[_token] = _register;\r\n }\r\n\r\n /**\r\n * @dev returns the conversion path between two tokens in the network\r\n * note that this method is quite expensive in terms of gas and should generally be called off-chain\r\n *\r\n * @param _sourceToken source token address\r\n * @param _targetToken target token address\r\n *\r\n * @return conversion path between the two tokens\r\n */\r\n function conversionPath(IERC20Token _sourceToken, IERC20Token _targetToken) public view returns (address[] memory) {\r\n IConversionPathFinder pathFinder = IConversionPathFinder(addressOf(CONVERSION_PATH_FINDER));\r\n return pathFinder.findPath(_sourceToken, _targetToken);\r\n }\r\n\r\n /**\r\n * @dev returns the expected target amount of converting a given amount on a given path\r\n * note that there is no support for circular paths\r\n *\r\n * @param _path conversion path (see conversion path format above)\r\n * @param _amount amount of _path[0] tokens received from the sender\r\n *\r\n * @return expected target amount\r\n */\r\n function rateByPath(address[] memory _path, uint256 _amount) public view returns (uint256) {\r\n uint256 amount;\r\n uint256 fee;\r\n uint256 supply;\r\n uint256 balance;\r\n uint32 weight;\r\n IConverter converter;\r\n IBancorFormula formula = IBancorFormula(addressOf(BANCOR_FORMULA));\r\n\r\n amount = _amount;\r\n\r\n // verify that the number of elements is larger than 2 and odd\r\n require(_path.length > 2 && _path.length % 2 == 1, \"ERR_INVALID_PATH\");\r\n\r\n // iterate over the conversion path\r\n for (uint256 i = 2; i < _path.length; i += 2) {\r\n IERC20Token sourceToken = IERC20Token(_path[i - 2]);\r\n address anchor = _path[i - 1];\r\n IERC20Token targetToken = IERC20Token(_path[i]);\r\n\r\n converter = IConverter(payable(IConverterAnchor(anchor).owner()));\r\n\r\n // backward compatibility\r\n sourceToken = getConverterTokenAddress(converter, sourceToken);\r\n targetToken = getConverterTokenAddress(converter, targetToken);\r\n\r\n if (address(targetToken) == anchor) { // buy the smart token\r\n // check if the current smart token has changed\r\n if (i < 3 || anchor != _path[i - 3])\r\n supply = ISmartToken(anchor).totalSupply();\r\n\r\n // get the amount & the conversion fee\r\n balance = converter.getConnectorBalance(sourceToken);\r\n (, weight, , , ) = converter.connectors(sourceToken);\r\n amount = formula.purchaseTargetAmount(supply, balance, weight, amount);\r\n fee = amount.mul(converter.conversionFee()).div(PPM_RESOLUTION);\r\n amount -= fee;\r\n\r\n // update the smart token supply for the next iteration\r\n supply = supply.add(amount);\r\n }\r\n else if (address(sourceToken) == anchor) { // sell the smart token\r\n // check if the current smart token has changed\r\n if (i < 3 || anchor != _path[i - 3])\r\n supply = ISmartToken(anchor).totalSupply();\r\n\r\n // get the amount & the conversion fee\r\n balance = converter.getConnectorBalance(targetToken);\r\n (, weight, , , ) = converter.connectors(targetToken);\r\n amount = formula.saleTargetAmount(supply, balance, weight, amount);\r\n fee = amount.mul(converter.conversionFee()).div(PPM_RESOLUTION);\r\n amount -= fee;\r\n\r\n // update the smart token supply for the next iteration\r\n supply = supply.sub(amount);\r\n }\r\n else { // cross reserve conversion\r\n (amount, fee) = getReturn(converter, sourceToken, targetToken, amount);\r\n }\r\n }\r\n\r\n return amount;\r\n }\r\n\r\n /**\r\n * @dev converts the token to any other token in the bancor network by following\r\n * a predefined conversion path and transfers the result tokens to a target account\r\n * affiliate account/fee can also be passed in to receive a conversion fee (on top of the liquidity provider fees)\r\n * note that the network should already have been given allowance of the source token (if not ETH)\r\n *\r\n * @param _path conversion path, see conversion path format above\r\n * @param _amount amount to convert from, in the source token\r\n * @param _minReturn if the conversion results in an amount smaller than the minimum return - it is cancelled, must be greater than zero\r\n * @param _beneficiary account that will receive the conversion result or 0x0 to send the result to the sender account\r\n * @param _affiliateAccount wallet address to receive the affiliate fee or 0x0 to disable affiliate fee\r\n * @param _affiliateFee affiliate fee in PPM or 0 to disable affiliate fee\r\n *\r\n * @return amount of tokens received from the conversion\r\n */\r\n function convertByPath(\r\n address[] memory _path,\r\n uint256 _amount,\r\n uint256 _minReturn,\r\n address payable _beneficiary,\r\n address _affiliateAccount,\r\n uint256 _affiliateFee)\r\n public\r\n payable\r\n protected\r\n greaterThanZero(_minReturn)\r\n returns (uint256)\r\n {\r\n // verify that the path contrains at least a single 'hop' and that the number of elements is odd\r\n require(_path.length > 2 && _path.length % 2 == 1, \"ERR_INVALID_PATH\");\r\n\r\n // validate msg.value and prepare the source token for the conversion\r\n handleSourceToken(IERC20Token(_path[0]), IConverterAnchor(_path[1]), _amount);\r\n\r\n // check if affiliate fee is enabled\r\n bool affiliateFeeEnabled = false;\r\n if (address(_affiliateAccount) == address(0)) {\r\n require(_affiliateFee == 0, \"ERR_INVALID_AFFILIATE_FEE\");\r\n }\r\n else {\r\n require(0 < _affiliateFee && _affiliateFee <= maxAffiliateFee, \"ERR_INVALID_AFFILIATE_FEE\");\r\n affiliateFeeEnabled = true;\r\n }\r\n\r\n // check if beneficiary is set\r\n address payable beneficiary = msg.sender;\r\n if (_beneficiary != address(0))\r\n beneficiary = _beneficiary;\r\n\r\n // convert and get the resulting amount\r\n ConversionStep[] memory data = createConversionData(_path, beneficiary, affiliateFeeEnabled);\r\n uint256 amount = doConversion(data, _amount, _minReturn, _affiliateAccount, _affiliateFee);\r\n\r\n // handle the conversion target tokens\r\n handleTargetToken(data, amount, beneficiary);\r\n\r\n return amount;\r\n }\r\n\r\n /**\r\n * @dev converts any other token to BNT in the bancor network by following\r\n a predefined conversion path and transfers the result to an account on a different blockchain\r\n * note that the network should already have been given allowance of the source token (if not ETH)\r\n *\r\n * @param _path conversion path, see conversion path format above\r\n * @param _amount amount to convert from, in the source token\r\n * @param _minReturn if the conversion results in an amount smaller than the minimum return - it is cancelled, must be greater than zero\r\n * @param _targetBlockchain blockchain BNT will be issued on\r\n * @param _targetAccount address/account on the target blockchain to send the BNT to\r\n * @param _conversionId pre-determined unique (if non zero) id which refers to this transaction\r\n *\r\n * @return the amount of BNT received from this conversion\r\n */\r\n function xConvert(\r\n address[] memory _path,\r\n uint256 _amount,\r\n uint256 _minReturn,\r\n bytes32 _targetBlockchain,\r\n bytes32 _targetAccount,\r\n uint256 _conversionId\r\n )\r\n public\r\n payable\r\n returns (uint256)\r\n {\r\n return xConvert2(_path, _amount, _minReturn, _targetBlockchain, _targetAccount, _conversionId, address(0), 0);\r\n }\r\n\r\n /**\r\n * @dev converts any other token to BNT in the bancor network by following\r\n a predefined conversion path and transfers the result to an account on a different blockchain\r\n * note that the network should already have been given allowance of the source token (if not ETH)\r\n *\r\n * @param _path conversion path, see conversion path format above\r\n * @param _amount amount to convert from, in the source token\r\n * @param _minReturn if the conversion results in an amount smaller than the minimum return - it is cancelled, must be greater than zero\r\n * @param _targetBlockchain blockchain BNT will be issued on\r\n * @param _targetAccount address/account on the target blockchain to send the BNT to\r\n * @param _conversionId pre-determined unique (if non zero) id which refers to this transaction\r\n * @param _affiliateAccount affiliate account\r\n * @param _affiliateFee affiliate fee in PPM\r\n *\r\n * @return the amount of BNT received from this conversion\r\n */\r\n function xConvert2(\r\n address[] memory _path,\r\n uint256 _amount,\r\n uint256 _minReturn,\r\n bytes32 _targetBlockchain,\r\n bytes32 _targetAccount,\r\n uint256 _conversionId,\r\n address _affiliateAccount,\r\n uint256 _affiliateFee\r\n )\r\n public\r\n payable\r\n greaterThanZero(_minReturn)\r\n returns (uint256)\r\n {\r\n IERC20Token targetToken = IERC20Token(_path[_path.length - 1]);\r\n IBancorX bancorX = IBancorX(addressOf(BANCOR_X));\r\n\r\n // verify that the destination token is BNT\r\n require(targetToken == IERC20Token(addressOf(BNT_TOKEN)), \"ERR_INVALID_TARGET_TOKEN\");\r\n\r\n // convert and get the resulting amount\r\n uint256 amount = convertByPath(_path, _amount, _minReturn, payable(address(this)), _affiliateAccount, _affiliateFee);\r\n\r\n // grant BancorX allowance\r\n ensureAllowance(targetToken, address(bancorX), amount);\r\n\r\n // transfer the resulting amount to BancorX\r\n bancorX.xTransfer(_targetBlockchain, _targetAccount, amount, _conversionId);\r\n\r\n return amount;\r\n }\r\n\r\n /**\r\n * @dev allows a user to convert a token that was sent from another blockchain into any other\r\n * token on the BancorNetwork\r\n * ideally this transaction is created before the previous conversion is even complete, so\r\n * so the input amount isn't known at that point - the amount is actually take from the\r\n * BancorX contract directly by specifying the conversion id\r\n *\r\n * @param _path conversion path\r\n * @param _bancorX address of the BancorX contract for the source token\r\n * @param _conversionId pre-determined unique (if non zero) id which refers to this conversion\r\n * @param _minReturn if the conversion results in an amount smaller than the minimum return - it is cancelled, must be nonzero\r\n * @param _beneficiary wallet to receive the conversion result\r\n *\r\n * @return amount of tokens received from the conversion\r\n */\r\n function completeXConversion(address[] memory _path, IBancorX _bancorX, uint256 _conversionId, uint256 _minReturn, address payable _beneficiary)\r\n public returns (uint256)\r\n {\r\n // verify that the source token is the BancorX token\r\n require(IERC20Token(_path[0]) == _bancorX.token(), \"ERR_INVALID_SOURCE_TOKEN\");\r\n\r\n // get conversion amount from BancorX contract\r\n uint256 amount = _bancorX.getXTransferAmount(_conversionId, msg.sender);\r\n\r\n // perform the conversion\r\n return convertByPath(_path, amount, _minReturn, _beneficiary, address(0), 0);\r\n }\r\n\r\n /**\r\n * @dev executes the actual conversion by following the conversion path\r\n *\r\n * @param _data conversion data, see ConversionStep struct above\r\n * @param _amount amount to convert from, in the source token\r\n * @param _minReturn if the conversion results in an amount smaller than the minimum return - it is cancelled, must be greater than zero\r\n * @param _affiliateAccount affiliate account\r\n * @param _affiliateFee affiliate fee in PPM\r\n *\r\n * @return amount of tokens received from the conversion\r\n */\r\n function doConversion(\r\n ConversionStep[] memory _data,\r\n uint256 _amount,\r\n uint256 _minReturn,\r\n address _affiliateAccount,\r\n uint256 _affiliateFee\r\n ) private returns (uint256) {\r\n uint256 toAmount;\r\n uint256 fromAmount = _amount;\r\n\r\n // iterate over the conversion data\r\n for (uint256 i = 0; i < _data.length; i++) {\r\n ConversionStep memory stepData = _data[i];\r\n\r\n // newer converter\r\n if (stepData.isV28OrHigherConverter) {\r\n // transfer the tokens to the converter only if the network contract currently holds the tokens\r\n // not needed with ETH or if it's the first conversion step\r\n if (i != 0 && _data[i - 1].beneficiary == address(this) && !etherTokens[stepData.sourceToken])\r\n safeTransfer(stepData.sourceToken, address(stepData.converter), fromAmount);\r\n }\r\n // older converter\r\n // if the source token is the smart token, no need to do any transfers as the converter controls it\r\n else if (stepData.sourceToken != ISmartToken(address(stepData.anchor))) {\r\n // grant allowance for it to transfer the tokens from the network contract\r\n ensureAllowance(stepData.sourceToken, address(stepData.converter), fromAmount);\r\n }\r\n\r\n // do the conversion\r\n if (!stepData.isV28OrHigherConverter)\r\n toAmount = ILegacyConverter(address(stepData.converter)).change(stepData.sourceToken, stepData.targetToken, fromAmount, 1);\r\n else if (etherTokens[stepData.sourceToken])\r\n toAmount = stepData.converter.convert{ value: msg.value }(stepData.sourceToken, stepData.targetToken, fromAmount, msg.sender, stepData.beneficiary);\r\n else\r\n toAmount = stepData.converter.convert(stepData.sourceToken, stepData.targetToken, fromAmount, msg.sender, stepData.beneficiary);\r\n\r\n // pay affiliate-fee if needed\r\n if (stepData.processAffiliateFee) {\r\n uint256 affiliateAmount = toAmount.mul(_affiliateFee).div(PPM_RESOLUTION);\r\n require(stepData.targetToken.transfer(_affiliateAccount, affiliateAmount), \"ERR_FEE_TRANSFER_FAILED\");\r\n toAmount -= affiliateAmount;\r\n }\r\n\r\n emit Conversion(stepData.anchor, stepData.sourceToken, stepData.targetToken, fromAmount, toAmount, msg.sender);\r\n fromAmount = toAmount;\r\n }\r\n\r\n // ensure the trade meets the minimum requested amount\r\n require(toAmount >= _minReturn, \"ERR_RETURN_TOO_LOW\");\r\n\r\n return toAmount;\r\n }\r\n\r\n /**\r\n * @dev validates msg.value and prepares the conversion source token for the conversion\r\n *\r\n * @param _sourceToken source token of the first conversion step\r\n * @param _anchor converter anchor of the first conversion step\r\n * @param _amount amount to convert from, in the source token\r\n */\r\n function handleSourceToken(IERC20Token _sourceToken, IConverterAnchor _anchor, uint256 _amount) private {\r\n IConverter firstConverter = IConverter(payable(_anchor.owner()));\r\n bool isNewerConverter = isV28OrHigherConverter(firstConverter);\r\n\r\n // ETH\r\n if (msg.value > 0) {\r\n // validate msg.value\r\n require(msg.value == _amount, \"ERR_ETH_AMOUNT_MISMATCH\");\r\n\r\n // EtherToken converter - deposit the ETH into the EtherToken\r\n // note that it can still be a non ETH converter if the path is wrong\r\n // but such conversion will simply revert\r\n if (!isNewerConverter)\r\n IEtherToken(address(getConverterEtherTokenAddress(firstConverter))).deposit{ value: msg.value }();\r\n }\r\n // EtherToken\r\n else if (etherTokens[_sourceToken]) {\r\n // claim the tokens - if the source token is ETH reserve, this call will fail\r\n // since in that case the transaction must be sent with msg.value\r\n safeTransferFrom(_sourceToken, msg.sender, address(this), _amount);\r\n\r\n // ETH converter - withdraw the ETH\r\n if (isNewerConverter)\r\n IEtherToken(address(_sourceToken)).withdraw(_amount);\r\n }\r\n // other ERC20 token\r\n else {\r\n // newer converter - transfer the tokens from the sender directly to the converter\r\n // otherwise claim the tokens\r\n if (isNewerConverter)\r\n safeTransferFrom(_sourceToken, msg.sender, address(firstConverter), _amount);\r\n else\r\n safeTransferFrom(_sourceToken, msg.sender, address(this), _amount);\r\n }\r\n }\r\n\r\n /**\r\n * @dev handles the conversion target token if the network still holds it at the end of the conversion\r\n *\r\n * @param _data conversion data, see ConversionStep struct above\r\n * @param _amount conversion target amount\r\n * @param _beneficiary wallet to receive the conversion result\r\n */\r\n function handleTargetToken(ConversionStep[] memory _data, uint256 _amount, address payable _beneficiary) private {\r\n ConversionStep memory stepData = _data[_data.length - 1];\r\n\r\n // network contract doesn't hold the tokens, do nothing\r\n if (stepData.beneficiary != address(this))\r\n return;\r\n\r\n IERC20Token targetToken = stepData.targetToken;\r\n\r\n // ETH / EtherToken\r\n if (etherTokens[targetToken]) {\r\n // newer converter should send ETH directly to the beneficiary\r\n assert(!stepData.isV28OrHigherConverter);\r\n\r\n // EtherToken converter - withdraw the ETH and transfer to the beneficiary\r\n IEtherToken(address(targetToken)).withdrawTo(_beneficiary, _amount);\r\n }\r\n // other ERC20 token\r\n else {\r\n safeTransfer(targetToken, _beneficiary, _amount);\r\n }\r\n }\r\n\r\n /**\r\n * @dev creates a memory cache of all conversion steps data to minimize logic and external calls during conversions\r\n *\r\n * @param _conversionPath conversion path, see conversion path format above\r\n * @param _beneficiary wallet to receive the conversion result\r\n * @param _affiliateFeeEnabled true if affiliate fee was requested by the sender, false if not\r\n *\r\n * @return cached conversion data to be ingested later on by the conversion flow\r\n */\r\n function createConversionData(address[] memory _conversionPath, address payable _beneficiary, bool _affiliateFeeEnabled) private view returns (ConversionStep[] memory) {\r\n ConversionStep[] memory data = new ConversionStep[](_conversionPath.length / 2);\r\n\r\n bool affiliateFeeProcessed = false;\r\n IERC20Token bntToken = IERC20Token(addressOf(BNT_TOKEN));\r\n // iterate the conversion path and create the conversion data for each step\r\n uint256 i;\r\n for (i = 0; i < _conversionPath.length - 1; i += 2) {\r\n IConverterAnchor anchor = IConverterAnchor(_conversionPath[i + 1]);\r\n IConverter converter = IConverter(payable(anchor.owner()));\r\n IERC20Token targetToken = IERC20Token(_conversionPath[i + 2]);\r\n\r\n // check if the affiliate fee should be processed in this step\r\n bool processAffiliateFee = _affiliateFeeEnabled && !affiliateFeeProcessed && targetToken == bntToken;\r\n if (processAffiliateFee)\r\n affiliateFeeProcessed = true;\r\n\r\n data[i / 2] = ConversionStep({\r\n // set the converter anchor\r\n anchor: anchor,\r\n\r\n // set the converter\r\n converter: converter,\r\n\r\n // set the source/target tokens\r\n sourceToken: IERC20Token(_conversionPath[i]),\r\n targetToken: targetToken,\r\n\r\n // requires knowledge about the next step, so initialize in the next phase\r\n beneficiary: address(0),\r\n\r\n // set flags\r\n isV28OrHigherConverter: isV28OrHigherConverter(converter),\r\n processAffiliateFee: processAffiliateFee\r\n });\r\n }\r\n\r\n // ETH support\r\n // source is ETH\r\n ConversionStep memory stepData = data[0];\r\n if (etherTokens[stepData.sourceToken]) {\r\n // newer converter - replace the source token address with ETH reserve address\r\n if (stepData.isV28OrHigherConverter)\r\n stepData.sourceToken = ETH_RESERVE_ADDRESS;\r\n // older converter - replace the source token with the EtherToken address used by the converter\r\n else\r\n stepData.sourceToken = getConverterEtherTokenAddress(stepData.converter);\r\n }\r\n\r\n // target is ETH\r\n stepData = data[data.length - 1];\r\n if (etherTokens[stepData.targetToken]) {\r\n // newer converter - replace the target token address with ETH reserve address\r\n if (stepData.isV28OrHigherConverter)\r\n stepData.targetToken = ETH_RESERVE_ADDRESS;\r\n // older converter - replace the target token with the EtherToken address used by the converter\r\n else\r\n stepData.targetToken = getConverterEtherTokenAddress(stepData.converter);\r\n }\r\n\r\n // set the beneficiary for each step\r\n for (i = 0; i < data.length; i++) {\r\n stepData = data[i];\r\n\r\n // first check if the converter in this step is newer as older converters don't even support the beneficiary argument\r\n if (stepData.isV28OrHigherConverter) {\r\n // if affiliate fee is processed in this step, beneficiary is the network contract\r\n if (stepData.processAffiliateFee)\r\n stepData.beneficiary = payable(address(this));\r\n // if it's the last step, beneficiary is the final beneficiary\r\n else if (i == data.length - 1)\r\n stepData.beneficiary = _beneficiary;\r\n // if the converter in the next step is newer, beneficiary is the next converter\r\n else if (data[i + 1].isV28OrHigherConverter)\r\n stepData.beneficiary = address(data[i + 1].converter);\r\n // the converter in the next step is older, beneficiary is the network contract\r\n else\r\n stepData.beneficiary = payable(address(this));\r\n }\r\n else {\r\n // converter in this step is older, beneficiary is the network contract\r\n stepData.beneficiary = payable(address(this));\r\n }\r\n }\r\n\r\n return data;\r\n }\r\n\r\n /**\r\n * @dev utility, checks whether allowance for the given spender exists and approves one if it doesn't.\r\n * Note that we use the non standard erc-20 interface in which `approve` has no return value so that\r\n * this function will work for both standard and non standard tokens\r\n *\r\n * @param _token token to check the allowance in\r\n * @param _spender approved address\r\n * @param _value allowance amount\r\n */\r\n function ensureAllowance(IERC20Token _token, address _spender, uint256 _value) private {\r\n uint256 allowance = _token.allowance(address(this), _spender);\r\n if (allowance < _value) {\r\n if (allowance > 0)\r\n safeApprove(_token, _spender, 0);\r\n safeApprove(_token, _spender, _value);\r\n }\r\n }\r\n\r\n // legacy - returns the address of an EtherToken used by the converter\r\n function getConverterEtherTokenAddress(IConverter _converter) private view returns (IERC20Token) {\r\n uint256 reserveCount = _converter.connectorTokenCount();\r\n for (uint256 i = 0; i < reserveCount; i++) {\r\n IERC20Token reserveTokenAddress = _converter.connectorTokens(i);\r\n if (etherTokens[reserveTokenAddress])\r\n return reserveTokenAddress;\r\n }\r\n\r\n return ETH_RESERVE_ADDRESS;\r\n }\r\n\r\n // legacy - if the token is an ether token, returns the ETH reserve address\r\n // used by the converter, otherwise returns the input token address\r\n function getConverterTokenAddress(IConverter _converter, IERC20Token _token) private view returns (IERC20Token) {\r\n if (!etherTokens[_token])\r\n return _token;\r\n\r\n if (isV28OrHigherConverter(_converter))\r\n return ETH_RESERVE_ADDRESS;\r\n\r\n return getConverterEtherTokenAddress(_converter);\r\n }\r\n\r\n bytes4 private constant GET_RETURN_FUNC_SELECTOR = bytes4(keccak256(\"getReturn(address,address,uint256)\"));\r\n\r\n // using a static call to get the return from older converters\r\n function getReturn(IConverter _dest, IERC20Token _sourceToken, IERC20Token _targetToken, uint256 _amount) internal view returns (uint256, uint256) {\r\n bytes memory data = abi.encodeWithSelector(GET_RETURN_FUNC_SELECTOR, _sourceToken, _targetToken, _amount);\r\n (bool success, bytes memory returnData) = address(_dest).staticcall(data);\r\n\r\n if (success) {\r\n if (returnData.length == 64) {\r\n return abi.decode(returnData, (uint256, uint256));\r\n }\r\n\r\n if (returnData.length == 32) {\r\n return (abi.decode(returnData, (uint256)), 0);\r\n }\r\n }\r\n\r\n return (0, 0);\r\n }\r\n\r\n bytes4 private constant IS_V28_OR_HIGHER_FUNC_SELECTOR = bytes4(keccak256(\"isV28OrHigher()\"));\r\n\r\n // using a static call to identify converter version\r\n // can't rely on the version number since the function had a different signature in older converters\r\n function isV28OrHigherConverter(IConverter _converter) internal view returns (bool) {\r\n bytes memory data = abi.encodeWithSelector(IS_V28_OR_HIGHER_FUNC_SELECTOR);\r\n (bool success, bytes memory returnData) = address(_converter).staticcall{ gas: 4000 }(data);\r\n\r\n if (success && returnData.length == 32) {\r\n return abi.decode(returnData, (bool));\r\n }\r\n\r\n return false;\r\n }\r\n\r\n /**\r\n * @dev deprecated, backward compatibility\r\n */\r\n function getReturnByPath(address[] memory _path, uint256 _amount) public view returns (uint256, uint256) {\r\n return (rateByPath(_path, _amount), 0);\r\n }\r\n\r\n /**\r\n * @dev deprecated, backward compatibility\r\n */\r\n function convert(address[] memory _path, uint256 _amount, uint256 _minReturn) public payable returns (uint256) {\r\n return convertByPath(_path, _amount, _minReturn, address(0), address(0), 0);\r\n }\r\n\r\n /**\r\n * @dev deprecated, backward compatibility\r\n */\r\n function convert2(\r\n address[] memory _path,\r\n uint256 _amount,\r\n uint256 _minReturn,\r\n address _affiliateAccount,\r\n uint256 _affiliateFee\r\n )\r\n public\r\n payable\r\n returns (uint256)\r\n {\r\n return convertByPath(_path, _amount, _minReturn, address(0), _affiliateAccount, _affiliateFee);\r\n }\r\n\r\n /**\r\n * @dev deprecated, backward compatibility\r\n */\r\n function convertFor(address[] memory _path, uint256 _amount, uint256 _minReturn, address payable _beneficiary) public payable returns (uint256) {\r\n return convertByPath(_path, _amount, _minReturn, _beneficiary, address(0), 0);\r\n }\r\n\r\n /**\r\n * @dev deprecated, backward compatibility\r\n */\r\n function convertFor2(\r\n address[] memory _path,\r\n uint256 _amount,\r\n uint256 _minReturn,\r\n address payable _beneficiary,\r\n address _affiliateAccount,\r\n uint256 _affiliateFee\r\n )\r\n public\r\n payable\r\n greaterThanZero(_minReturn)\r\n returns (uint256)\r\n {\r\n return convertByPath(_path, _amount, _minReturn, _beneficiary, _affiliateAccount, _affiliateFee);\r\n }\r\n\r\n /**\r\n * @dev deprecated, backward compatibility\r\n */\r\n function claimAndConvert(address[] memory _path, uint256 _amount, uint256 _minReturn) public returns (uint256) {\r\n return convertByPath(_path, _amount, _minReturn, address(0), address(0), 0);\r\n }\r\n\r\n /**\r\n * @dev deprecated, backward compatibility\r\n */\r\n function claimAndConvert2(\r\n address[] memory _path,\r\n uint256 _amount,\r\n uint256 _minReturn,\r\n address _affiliateAccount,\r\n uint256 _affiliateFee\r\n )\r\n public\r\n returns (uint256)\r\n {\r\n return convertByPath(_path, _amount, _minReturn, address(0), _affiliateAccount, _affiliateFee);\r\n }\r\n\r\n /**\r\n * @dev deprecated, backward compatibility\r\n */\r\n function claimAndConvertFor(address[] memory _path, uint256 _amount, uint256 _minReturn, address payable _beneficiary) public returns (uint256) {\r\n return convertByPath(_path, _amount, _minReturn, _beneficiary, address(0), 0);\r\n }\r\n\r\n /**\r\n * @dev deprecated, backward compatibility\r\n */\r\n function claimAndConvertFor2(\r\n address[] memory _path,\r\n uint256 _amount,\r\n uint256 _minReturn,\r\n address payable 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+ "0x343765429aea5a34b3ff6a3785a98a5abb2597aca87bfbb58632c173d585373a": {
+ "anonymous": false,
+ "inputs": [
+ {
+ "indexed": true,
+ "internalType": "address",
+ "name": "_prevOwner",
+ "type": "address"
+ },
+ {
+ "indexed": true,
+ "internalType": "address",
+ "name": "_newOwner",
+ "type": "address"
+ }
+ ],
+ "name": "OwnerUpdate",
+ "type": "event"
+ }
+ },
+ "links": {},
+ "address": "0x82E0022A199255785123B8AEAa10913fc88cB97f",
+ "transactionHash": "0x17803233e04d31d33dca399b94cdc9e717b1d492727d33c7f15e4e550e6873f7"
+ },
+ "1604965760834": {
+ "events": {
+ "0x7154b38b5dd31bb3122436a96d4e09aba5b323ae1fd580025fab55074334c095": {
+ "anonymous": false,
+ "inputs": [
+ {
+ "indexed": true,
+ "internalType": "contract IConverterAnchor",
+ "name": "_smartToken",
+ "type": "address"
+ },
+ {
+ "indexed": true,
+ "internalType": "contract IERC20Token",
+ "name": "_fromToken",
+ "type": "address"
+ },
+ {
+ "indexed": true,
+ "internalType": "contract IERC20Token",
+ "name": "_toToken",
+ "type": "address"
+ },
+ {
+ "indexed": false,
+ "internalType": "uint256",
+ "name": "_fromAmount",
+ "type": "uint256"
+ },
+ {
+ "indexed": false,
+ "internalType": "uint256",
+ "name": "_toAmount",
+ "type": "uint256"
+ },
+ {
+ "indexed": false,
+ "internalType": "address",
+ "name": "_trader",
+ "type": "address"
+ }
+ ],
+ "name": "Conversion",
+ "type": "event"
+ },
+ "0x343765429aea5a34b3ff6a3785a98a5abb2597aca87bfbb58632c173d585373a": {
+ "anonymous": false,
+ "inputs": [
+ {
+ "indexed": true,
+ "internalType": "address",
+ "name": "_prevOwner",
+ "type": "address"
+ },
+ {
+ "indexed": true,
+ "internalType": "address",
+ "name": "_newOwner",
+ "type": "address"
+ }
+ ],
+ "name": "OwnerUpdate",
+ "type": "event"
+ }
+ },
+ "links": {},
+ "address": "0x965e4A39955c8c4EF02366420d35F82aB56669b7",
+ "transactionHash": "0x595c8ba6fe67726990ab55caf71047b0f0cf5821870849a67b2bc5c17d9a8413"
+ }
+ },
+ "schemaVersion": "3.2.3",
+ "updatedAt": "2020-11-10T14:20:44.742Z",
+ "networkType": "ethereum",
+ "devdoc": {
+ "details": "The BancorNetwork contract is the main entry point for Bancor token conversions. It also allows for the conversion of any token in the Bancor Network to any other token in a single transaction by providing a conversion path. A note on Conversion Path: Conversion path is a data structure that is used when converting a token to another token in the Bancor Network, when the conversion cannot necessarily be done by a single converter and might require multiple 'hops'. The path defines which converters should be used and what kind of conversion should be done in each step. The path format doesn't include complex structure; instead, it is represented by a single array in which each 'hop' is represented by a 2-tuple - converter anchor & target token. In addition, the first element is always the source token. The converter anchor is only used as a pointer to a converter (since converter addresses are more likely to change as opposed to anchor addresses). Format: [source token, converter anchor, target token, converter anchor, target token...]",
+ "events": {
+ "Conversion(address,address,address,uint256,uint256,address)": {
+ "details": "triggered when a conversion between two tokens occurs",
+ "params": {
+ "_fromAmount": "amount converted, in the source token",
+ "_fromToken": "source ERC20 token",
+ "_smartToken": "anchor governed by the converter",
+ "_toAmount": "amount returned, minus conversion fee",
+ "_toToken": "target ERC20 token",
+ "_trader": "wallet that initiated the trade"
+ }
+ }
+ },
+ "kind": "dev",
+ "methods": {
+ "acceptOwnership()": {
+ "details": "used by a new owner to accept an ownership transfer"
+ },
+ "claimAndConvert(address[],uint256,uint256)": {
+ "details": "deprecated, backward compatibility"
+ },
+ "claimAndConvert2(address[],uint256,uint256,address,uint256)": {
+ "details": "deprecated, backward compatibility"
+ },
+ "claimAndConvertFor(address[],uint256,uint256,address)": {
+ "details": "deprecated, backward compatibility"
+ },
+ "claimAndConvertFor2(address[],uint256,uint256,address,address,uint256)": {
+ "details": "deprecated, backward compatibility"
+ },
+ "completeXConversion(address[],address,uint256,uint256,address)": {
+ "details": "allows a user to convert a token that was sent from another blockchain into any other token on the BancorNetwork ideally this transaction is created before the previous conversion is even complete, so so the input amount isn't known at that point - the amount is actually take from the BancorX contract directly by specifying the conversion id",
+ "params": {
+ "_bancorX": "address of the BancorX contract for the source token",
+ "_beneficiary": "wallet to receive the conversion result",
+ "_conversionId": "pre-determined unique (if non zero) id which refers to this conversion",
+ "_minReturn": "if the conversion results in an amount smaller than the minimum return - it is cancelled, must be nonzero",
+ "_path": "conversion path"
+ },
+ "returns": {
+ "_0": "amount of tokens received from the conversion"
+ }
+ },
+ "constructor": {
+ "details": "initializes a new BancorNetwork instance",
+ "params": {
+ "_registry": "address of a contract registry contract"
+ }
+ },
+ "conversionPath(address,address)": {
+ "details": "returns the conversion path between two tokens in the network note that this method is quite expensive in terms of gas and should generally be called off-chain",
+ "params": {
+ "_sourceToken": "source token address",
+ "_targetToken": "target token address"
+ },
+ "returns": {
+ "_0": "conversion path between the two tokens"
+ }
+ },
+ "convert(address[],uint256,uint256)": {
+ "details": "deprecated, backward compatibility"
+ },
+ "convert2(address[],uint256,uint256,address,uint256)": {
+ "details": "deprecated, backward compatibility"
+ },
+ "convertByPath(address[],uint256,uint256,address,address,uint256)": {
+ "details": "converts the token to any other token in the bancor network by following a predefined conversion path and transfers the result tokens to a target account affiliate account/fee can also be passed in to receive a conversion fee (on top of the liquidity provider fees) note that the network should already have been given allowance of the source token (if not ETH)",
+ "params": {
+ "_affiliateAccount": "wallet address to receive the affiliate fee or 0x0 to disable affiliate fee",
+ "_affiliateFee": "affiliate fee in PPM or 0 to disable affiliate fee",
+ "_amount": "amount to convert from, in the source token",
+ "_beneficiary": "account that will receive the conversion result or 0x0 to send the result to the sender account",
+ "_minReturn": "if the conversion results in an amount smaller than the minimum return - it is cancelled, must be greater than zero",
+ "_path": "conversion path, see conversion path format above"
+ },
+ "returns": {
+ "_0": "amount of tokens received from the conversion"
+ }
+ },
+ "convertFor(address[],uint256,uint256,address)": {
+ "details": "deprecated, backward compatibility"
+ },
+ "convertFor2(address[],uint256,uint256,address,address,uint256)": {
+ "details": "deprecated, backward compatibility"
+ },
+ "getReturnByPath(address[],uint256)": {
+ "details": "deprecated, backward compatibility"
+ },
+ "rateByPath(address[],uint256)": {
+ "details": "returns the expected target amount of converting a given amount on a given path note that there is no support for circular paths",
+ "params": {
+ "_amount": "amount of _path[0] tokens received from the sender",
+ "_path": "conversion path (see conversion path format above)"
+ },
+ "returns": {
+ "_0": "expected target amount"
+ }
+ },
+ "registerEtherToken(address,bool)": {
+ "details": "allows the owner to register/unregister ether tokens",
+ "params": {
+ "_register": "true to register, false to unregister",
+ "_token": "ether token contract address"
+ }
+ },
+ "restoreRegistry()": {
+ "details": "restores the previous contract-registry"
+ },
+ "restrictRegistryUpdate(bool)": {
+ "details": "restricts the permission to update the contract-registry",
+ "params": {
+ "_onlyOwnerCanUpdateRegistry": "indicates whether or not permission is restricted to owner only"
+ }
+ },
+ "setMaxAffiliateFee(uint256)": {
+ "details": "allows the owner to update the maximum affiliate-fee",
+ "params": {
+ "_maxAffiliateFee": "maximum affiliate-fee"
+ }
+ },
+ "transferOwnership(address)": {
+ "details": "allows transferring the contract ownership the new owner still needs to accept the transfer can only be called by the contract owner",
+ "params": {
+ "_newOwner": "new contract owner"
+ }
+ },
+ "updateRegistry()": {
+ "details": "updates to the new contract-registry"
+ },
+ "withdrawTokens(address,address,uint256)": {
+ "details": "withdraws tokens held by the contract and sends them to an account can only be called by the owner",
+ "params": {
+ "_amount": "amount to withdraw",
+ "_to": "account to receive the new amount",
+ "_token": "ERC20 token contract address"
+ }
+ },
+ "xConvert(address[],uint256,uint256,bytes32,bytes32,uint256)": {
+ "details": "converts any other token to BNT in the bancor network by following a predefined conversion path and transfers the result to an account on a different blockchain note that the network should already have been given allowance of the source token (if not ETH)",
+ "params": {
+ "_amount": "amount to convert from, in the source token",
+ "_conversionId": "pre-determined unique (if non zero) id which refers to this transaction",
+ "_minReturn": "if the conversion results in an amount smaller than the minimum return - it is cancelled, must be greater than zero",
+ "_path": "conversion path, see conversion path format above",
+ "_targetAccount": "address/account on the target blockchain to send the BNT to",
+ "_targetBlockchain": "blockchain BNT will be issued on"
+ },
+ "returns": {
+ "_0": "the amount of BNT received from this conversion"
+ }
+ },
+ "xConvert2(address[],uint256,uint256,bytes32,bytes32,uint256,address,uint256)": {
+ "details": "converts any other token to BNT in the bancor network by following a predefined conversion path and transfers the result to an account on a different blockchain note that the network should already have been given allowance of the source token (if not ETH)",
+ "params": {
+ "_affiliateAccount": "affiliate account",
+ "_affiliateFee": "affiliate fee in PPM",
+ "_amount": "amount to convert from, in the source token",
+ "_conversionId": "pre-determined unique (if non zero) id which refers to this transaction",
+ "_minReturn": "if the conversion results in an amount smaller than the minimum return - it is cancelled, must be greater than zero",
+ "_path": "conversion path, see conversion path format above",
+ "_targetAccount": "address/account on the target blockchain to send the BNT to",
+ "_targetBlockchain": "blockchain BNT will be issued on"
+ },
+ "returns": {
+ "_0": "the amount of BNT received from this conversion"
+ }
+ }
+ },
+ "version": 1
+ },
+ "userdoc": {
+ "kind": "user",
+ "methods": {},
+ "version": 1
+ }
+}
\ No newline at end of file
diff --git a/apps/cic-eth/tests/testdata/bancor/BancorX.json b/apps/cic-eth/tests/testdata/bancor/BancorX.json
new file mode 100644
index 00000000..9568edb9
--- /dev/null
+++ b/apps/cic-eth/tests/testdata/bancor/BancorX.json
@@ -0,0 +1,24111 @@
+{
+ "contractName": "BancorX",
+ "abi": [
+ {
+ "inputs": [
+ {
+ "internalType": "uint256",
+ "name": "_maxLockLimit",
+ "type": "uint256"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_maxReleaseLimit",
+ "type": "uint256"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_minLimit",
+ "type": "uint256"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_limitIncPerBlock",
+ "type": "uint256"
+ },
+ {
+ "internalType": "uint8",
+ "name": "_minRequiredReports",
+ "type": "uint8"
+ },
+ {
+ "internalType": "contract IContractRegistry",
+ "name": "_registry",
+ "type": "address"
+ },
+ {
+ "internalType": "contract IERC20Token",
+ "name": "_token",
+ "type": "address"
+ }
+ ],
+ "stateMutability": "nonpayable",
+ "type": "constructor"
+ },
+ {
+ "anonymous": false,
+ "inputs": [
+ {
+ "indexed": true,
+ "internalType": "address",
+ "name": "_prevOwner",
+ "type": "address"
+ },
+ {
+ "indexed": true,
+ "internalType": "address",
+ "name": "_newOwner",
+ "type": "address"
+ }
+ ],
+ "name": "OwnerUpdate",
+ "type": "event"
+ },
+ {
+ "anonymous": false,
+ "inputs": [
+ {
+ "indexed": true,
+ "internalType": "address",
+ "name": "_from",
+ "type": "address"
+ },
+ {
+ "indexed": false,
+ "internalType": "uint256",
+ "name": "_amount",
+ "type": "uint256"
+ }
+ ],
+ "name": "TokensLock",
+ "type": "event"
+ },
+ {
+ "anonymous": false,
+ "inputs": [
+ {
+ "indexed": true,
+ "internalType": "address",
+ "name": "_to",
+ "type": "address"
+ },
+ {
+ "indexed": false,
+ "internalType": "uint256",
+ "name": "_amount",
+ "type": "uint256"
+ }
+ ],
+ "name": "TokensRelease",
+ "type": "event"
+ },
+ {
+ "anonymous": false,
+ "inputs": [
+ {
+ "indexed": true,
+ "internalType": "address",
+ "name": "_reporter",
+ "type": "address"
+ },
+ {
+ "indexed": false,
+ "internalType": "bytes32",
+ "name": "_fromBlockchain",
+ "type": "bytes32"
+ },
+ {
+ "indexed": false,
+ "internalType": "uint256",
+ "name": "_txId",
+ "type": "uint256"
+ },
+ {
+ "indexed": false,
+ "internalType": "address",
+ "name": "_to",
+ "type": "address"
+ },
+ {
+ "indexed": false,
+ "internalType": "uint256",
+ "name": "_amount",
+ "type": "uint256"
+ },
+ {
+ "indexed": false,
+ "internalType": "uint256",
+ "name": "_xTransferId",
+ "type": "uint256"
+ }
+ ],
+ "name": "TxReport",
+ "type": "event"
+ },
+ {
+ "anonymous": false,
+ "inputs": [
+ {
+ "indexed": true,
+ "internalType": "address",
+ "name": "_from",
+ "type": "address"
+ },
+ {
+ "indexed": false,
+ "internalType": "bytes32",
+ "name": "_toBlockchain",
+ "type": "bytes32"
+ },
+ {
+ "indexed": true,
+ "internalType": "bytes32",
+ "name": "_to",
+ "type": "bytes32"
+ },
+ {
+ "indexed": false,
+ "internalType": "uint256",
+ "name": "_amount",
+ "type": "uint256"
+ },
+ {
+ "indexed": false,
+ "internalType": "uint256",
+ "name": "_id",
+ "type": "uint256"
+ }
+ ],
+ "name": "XTransfer",
+ "type": "event"
+ },
+ {
+ "anonymous": false,
+ "inputs": [
+ {
+ "indexed": false,
+ "internalType": "address",
+ "name": "_to",
+ "type": "address"
+ },
+ {
+ "indexed": false,
+ "internalType": "uint256",
+ "name": "_id",
+ "type": "uint256"
+ }
+ ],
+ "name": "XTransferComplete",
+ "type": "event"
+ },
+ {
+ "inputs": [],
+ "name": "acceptOwnership",
+ "outputs": [],
+ "stateMutability": "nonpayable",
+ "type": "function"
+ },
+ {
+ "inputs": [],
+ "name": "limitIncPerBlock",
+ "outputs": [
+ {
+ "internalType": "uint256",
+ "name": "",
+ "type": "uint256"
+ }
+ ],
+ "stateMutability": "view",
+ "type": "function"
+ },
+ {
+ "inputs": [],
+ "name": "maxLockLimit",
+ "outputs": [
+ {
+ "internalType": "uint256",
+ "name": "",
+ "type": "uint256"
+ }
+ ],
+ "stateMutability": "view",
+ "type": "function"
+ },
+ {
+ "inputs": [],
+ "name": "maxReleaseLimit",
+ "outputs": [
+ {
+ "internalType": "uint256",
+ "name": "",
+ "type": "uint256"
+ }
+ ],
+ "stateMutability": "view",
+ "type": "function"
+ },
+ {
+ "inputs": [],
+ "name": "minLimit",
+ "outputs": [
+ {
+ "internalType": "uint256",
+ "name": "",
+ "type": "uint256"
+ }
+ ],
+ "stateMutability": "view",
+ "type": "function"
+ },
+ {
+ "inputs": [],
+ "name": "minRequiredReports",
+ "outputs": [
+ {
+ "internalType": "uint8",
+ "name": "",
+ "type": "uint8"
+ }
+ ],
+ "stateMutability": "view",
+ "type": "function"
+ },
+ {
+ "inputs": [],
+ "name": "newOwner",
+ "outputs": [
+ {
+ "internalType": "address",
+ "name": "",
+ "type": "address"
+ }
+ ],
+ "stateMutability": "view",
+ "type": "function"
+ },
+ {
+ "inputs": [],
+ "name": "onlyOwnerCanUpdateRegistry",
+ "outputs": [
+ {
+ "internalType": "bool",
+ "name": "",
+ "type": "bool"
+ }
+ ],
+ "stateMutability": "view",
+ "type": "function"
+ },
+ {
+ "inputs": [],
+ "name": "owner",
+ "outputs": [
+ {
+ "internalType": "address",
+ "name": "",
+ "type": "address"
+ }
+ ],
+ "stateMutability": "view",
+ "type": "function"
+ },
+ {
+ "inputs": [],
+ "name": "prevLockBlockNumber",
+ "outputs": [
+ {
+ "internalType": "uint256",
+ "name": "",
+ "type": "uint256"
+ }
+ ],
+ "stateMutability": "view",
+ "type": "function"
+ },
+ {
+ "inputs": [],
+ "name": "prevLockLimit",
+ "outputs": [
+ {
+ "internalType": "uint256",
+ "name": "",
+ "type": "uint256"
+ }
+ ],
+ "stateMutability": "view",
+ "type": "function"
+ },
+ {
+ "inputs": [],
+ "name": "prevRegistry",
+ "outputs": [
+ {
+ "internalType": "contract IContractRegistry",
+ "name": "",
+ "type": "address"
+ }
+ ],
+ "stateMutability": "view",
+ "type": "function"
+ },
+ {
+ "inputs": [],
+ "name": "prevReleaseBlockNumber",
+ "outputs": [
+ {
+ "internalType": "uint256",
+ "name": "",
+ "type": "uint256"
+ }
+ ],
+ "stateMutability": "view",
+ "type": "function"
+ },
+ {
+ "inputs": [],
+ "name": "prevReleaseLimit",
+ "outputs": [
+ {
+ "internalType": "uint256",
+ "name": "",
+ "type": "uint256"
+ }
+ ],
+ "stateMutability": "view",
+ "type": "function"
+ },
+ {
+ "inputs": [],
+ "name": "registry",
+ "outputs": [
+ {
+ "internalType": "contract IContractRegistry",
+ "name": "",
+ "type": "address"
+ }
+ ],
+ "stateMutability": "view",
+ "type": "function"
+ },
+ {
+ "inputs": [
+ {
+ "internalType": "uint256",
+ "name": "",
+ "type": "uint256"
+ },
+ {
+ "internalType": "address",
+ "name": "",
+ "type": "address"
+ }
+ ],
+ "name": "reportedTxs",
+ "outputs": [
+ {
+ "internalType": "bool",
+ "name": "",
+ "type": "bool"
+ }
+ ],
+ "stateMutability": "view",
+ "type": "function"
+ },
+ {
+ "inputs": [
+ {
+ "internalType": "address",
+ "name": "",
+ "type": "address"
+ }
+ ],
+ "name": "reporters",
+ "outputs": [
+ {
+ "internalType": "bool",
+ "name": "",
+ "type": "bool"
+ }
+ ],
+ "stateMutability": "view",
+ "type": "function"
+ },
+ {
+ "inputs": [],
+ "name": "reportingEnabled",
+ "outputs": [
+ {
+ "internalType": "bool",
+ "name": "",
+ "type": "bool"
+ }
+ ],
+ "stateMutability": "view",
+ "type": "function"
+ },
+ {
+ "inputs": [],
+ "name": "restoreRegistry",
+ "outputs": [],
+ "stateMutability": "nonpayable",
+ "type": "function"
+ },
+ {
+ "inputs": [
+ {
+ "internalType": "bool",
+ "name": "_onlyOwnerCanUpdateRegistry",
+ "type": "bool"
+ }
+ ],
+ "name": "restrictRegistryUpdate",
+ "outputs": [],
+ "stateMutability": "nonpayable",
+ "type": "function"
+ },
+ {
+ "inputs": [],
+ "name": "token",
+ "outputs": [
+ {
+ "internalType": "contract IERC20Token",
+ "name": "",
+ "type": "address"
+ }
+ ],
+ "stateMutability": "view",
+ "type": "function"
+ },
+ {
+ "inputs": [
+ {
+ "internalType": "uint256",
+ "name": "",
+ "type": "uint256"
+ }
+ ],
+ "name": "transactionIds",
+ "outputs": [
+ {
+ "internalType": "uint256",
+ "name": "",
+ "type": "uint256"
+ }
+ ],
+ "stateMutability": "view",
+ "type": "function"
+ },
+ {
+ "inputs": [
+ {
+ "internalType": "uint256",
+ "name": "",
+ "type": "uint256"
+ }
+ ],
+ "name": "transactions",
+ "outputs": [
+ {
+ "internalType": "uint256",
+ "name": "amount",
+ "type": "uint256"
+ },
+ {
+ "internalType": "bytes32",
+ "name": "fromBlockchain",
+ "type": "bytes32"
+ },
+ {
+ "internalType": "address",
+ "name": "to",
+ "type": "address"
+ },
+ {
+ "internalType": "uint8",
+ "name": "numOfReports",
+ "type": "uint8"
+ },
+ {
+ "internalType": "bool",
+ "name": "completed",
+ "type": "bool"
+ }
+ ],
+ "stateMutability": "view",
+ "type": "function"
+ },
+ {
+ "inputs": [
+ {
+ "internalType": "address",
+ "name": "_newOwner",
+ "type": "address"
+ }
+ ],
+ "name": "transferOwnership",
+ "outputs": [],
+ "stateMutability": "nonpayable",
+ "type": "function"
+ },
+ {
+ "inputs": [],
+ "name": "updateRegistry",
+ "outputs": [],
+ "stateMutability": "nonpayable",
+ "type": "function"
+ },
+ {
+ "inputs": [],
+ "name": "version",
+ "outputs": [
+ {
+ "internalType": "uint16",
+ "name": "",
+ "type": "uint16"
+ }
+ ],
+ "stateMutability": "view",
+ "type": "function"
+ },
+ {
+ "inputs": [
+ {
+ "internalType": "contract IERC20Token",
+ "name": "_token",
+ "type": "address"
+ },
+ {
+ "internalType": "address",
+ "name": "_to",
+ "type": "address"
+ },
+ {
+ "internalType": "uint256",
+ "name": "_amount",
+ "type": "uint256"
+ }
+ ],
+ "name": "withdrawTokens",
+ "outputs": [],
+ "stateMutability": "nonpayable",
+ "type": "function"
+ },
+ {
+ "inputs": [],
+ "name": "xTransfersEnabled",
+ "outputs": [
+ {
+ "internalType": "bool",
+ "name": "",
+ "type": "bool"
+ }
+ ],
+ "stateMutability": "view",
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+ {
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+ "name": "_maxLockLimit",
+ "type": "uint256"
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+ ],
+ "name": "setMaxLockLimit",
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+ "type": "function"
+ },
+ {
+ "inputs": [
+ {
+ "internalType": "uint256",
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+ "type": "uint256"
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+ ],
+ "name": "setMaxReleaseLimit",
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+ "stateMutability": "nonpayable",
+ "type": "function"
+ },
+ {
+ "inputs": [
+ {
+ "internalType": "uint256",
+ "name": "_minLimit",
+ "type": "uint256"
+ }
+ ],
+ "name": "setMinLimit",
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+ "stateMutability": "nonpayable",
+ "type": "function"
+ },
+ {
+ "inputs": [
+ {
+ "internalType": "uint256",
+ "name": "_limitIncPerBlock",
+ "type": "uint256"
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+ ],
+ "name": "setLimitIncPerBlock",
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+ "stateMutability": "nonpayable",
+ "type": "function"
+ },
+ {
+ "inputs": [
+ {
+ "internalType": "uint8",
+ "name": "_minRequiredReports",
+ "type": "uint8"
+ }
+ ],
+ "name": "setMinRequiredReports",
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+ "stateMutability": "nonpayable",
+ "type": "function"
+ },
+ {
+ "inputs": [
+ {
+ "internalType": "address",
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+ "name": "setReporter",
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+ "type": "function"
+ },
+ {
+ "inputs": [
+ {
+ "internalType": "bool",
+ "name": "_enable",
+ "type": "bool"
+ }
+ ],
+ "name": "enableXTransfers",
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+ "stateMutability": "nonpayable",
+ "type": "function"
+ },
+ {
+ "inputs": [
+ {
+ "internalType": "bool",
+ "name": "_enable",
+ "type": "bool"
+ }
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+ "stateMutability": "nonpayable",
+ "type": "function"
+ },
+ {
+ "inputs": [
+ {
+ "internalType": "address[]",
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+ "type": "function"
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+ {
+ "inputs": [
+ {
+ "internalType": "bytes32",
+ "name": "_toBlockchain",
+ "type": "bytes32"
+ },
+ {
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+ "name": "_to",
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+ {
+ "internalType": "uint256",
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+ "type": "uint256"
+ },
+ {
+ "internalType": "uint256",
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+ }
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+ "name": "xTransfer",
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+ "type": "function"
+ },
+ {
+ "inputs": [
+ {
+ "internalType": "bytes32",
+ "name": "_toBlockchain",
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+ "internalType": "bytes32",
+ "name": "_to",
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+ {
+ "internalType": "uint256",
+ "name": "_amount",
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+ "name": "xTransfer",
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+ "type": "function"
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+ {
+ "inputs": [
+ {
+ "internalType": "bytes32",
+ "name": "_fromBlockchain",
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+ {
+ "internalType": "uint256",
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+ {
+ "internalType": "uint256",
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+ "name": "reportTx",
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+ "type": "function"
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+ {
+ "inputs": [
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+ "internalType": "uint256",
+ "name": "_xTransferId",
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+ "type": "uint256"
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+ "stateMutability": "view",
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+ "type": "uint256"
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+ "stateMutability": "view",
+ "type": "function"
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+ "internalType": "uint256",
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+ "type": "uint256"
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+ "stateMutability": "view",
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BancorX contract allows cross chain token transfers. There are two processes that take place in the contract - - Initiate a cross chain transfer to a target blockchain (locks tokens from the caller account on Ethereum) - Report a cross chain transfer initiated on a source blockchain (releases tokens to an account on Ethereum) Reporting cross chain transfers works similar to standard multisig contracts, meaning that multiple callers are required to report a transfer before tokens are released to the target account.\",\"events\":{\"TokensLock(address,uint256)\":{\"details\":\"triggered when tokens are locked in smart contract\",\"params\":{\"_amount\":\"amount locked\",\"_from\":\"wallet address that the tokens are locked from\"}},\"TokensRelease(address,uint256)\":{\"details\":\"triggered when tokens are released by the smart contract\",\"params\":{\"_amount\":\"amount released\",\"_to\":\"wallet address that the tokens are released to\"}},\"TxReport(address,bytes32,uint256,address,uint256,uint256)\":{\"details\":\"triggered when report 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for calculating current release limit\",\"returns\":{\"_0\":\"the current maximum limit of tokens that can be released\"}},\"getXTransferAmount(uint256,address)\":{\"details\":\"gets x transfer amount by xTransferId (not txId)\",\"params\":{\"_for\":\"address corresponding to xTransferId\",\"_xTransferId\":\"unique (if non zero) pre-determined id (unlike _txId which is determined after the transactions been broadcasted)\"},\"returns\":{\"_0\":\"amount that was sent in xTransfer corresponding to _xTransferId\"}},\"reportTx(bytes32,uint256,address,uint256,uint256)\":{\"details\":\"allows reporter to report transaction which occured on another blockchain\",\"params\":{\"_amount\":\"amount of tokens destroyed on another blockchain\",\"_fromBlockchain\":\"blockchain in which tokens were destroyed\",\"_to\":\"address to receive tokens\",\"_txId\":\"transactionId of transaction thats being reported\",\"_xTransferId\":\"unique (if non zero) pre-determined id (unlike _txId which is determined after the transactions been mined)\"}},\"restoreRegistry()\":{\"details\":\"restores the previous contract-registry\"},\"restrictRegistryUpdate(bool)\":{\"details\":\"restricts the permission to update the contract-registry\",\"params\":{\"_onlyOwnerCanUpdateRegistry\":\"indicates whether or not permission is restricted to owner only\"}},\"setLimitIncPerBlock(uint256)\":{\"details\":\"setter\",\"params\":{\"_limitIncPerBlock\":\"new limitIncPerBlock\"}},\"setMaxLockLimit(uint256)\":{\"details\":\"setter\",\"params\":{\"_maxLockLimit\":\"new maxLockLimit\"}},\"setMaxReleaseLimit(uint256)\":{\"details\":\"setter\",\"params\":{\"_maxReleaseLimit\":\"new maxReleaseLimit\"}},\"setMinLimit(uint256)\":{\"details\":\"setter\",\"params\":{\"_minLimit\":\"new minLimit\"}},\"setMinRequiredReports(uint8)\":{\"details\":\"setter\",\"params\":{\"_minRequiredReports\":\"new minRequiredReports\"}},\"setReporter(address,bool)\":{\"details\":\"allows the owner to set/remove 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,
+ "source": "// SPDX-License-Identifier: SEE LICENSE IN LICENSE\r\npragma solidity 0.6.12;\r\nimport \"./interfaces/IBancorXUpgrader.sol\";\r\nimport \"./interfaces/IBancorX.sol\";\r\nimport \"../utility/ContractRegistryClient.sol\";\r\nimport \"../utility/SafeMath.sol\";\r\nimport \"../utility/TokenHandler.sol\";\r\nimport \"../utility/TokenHolder.sol\";\r\n\r\n/**\r\n * @dev The BancorX contract allows cross chain token transfers.\r\n *\r\n * There are two processes that take place in the contract -\r\n * - Initiate a cross chain transfer to a target blockchain (locks tokens from the caller account on Ethereum)\r\n * - Report a cross chain transfer initiated on a source blockchain (releases tokens to an account on Ethereum)\r\n *\r\n * Reporting cross chain transfers works similar to standard multisig contracts, meaning that multiple\r\n * callers are required to report a transfer before tokens are released to the target account.\r\n*/\r\ncontract BancorX is IBancorX, TokenHandler, TokenHolder, ContractRegistryClient {\r\n using SafeMath for uint256;\r\n\r\n // represents a transaction on another blockchain where tokens were destroyed/locked\r\n struct Transaction {\r\n uint256 amount;\r\n bytes32 fromBlockchain;\r\n address to;\r\n uint8 numOfReports;\r\n bool completed;\r\n }\r\n\r\n uint16 public constant version = 4;\r\n\r\n uint256 public maxLockLimit; // the maximum amount of tokens that can be locked in one transaction\r\n uint256 public maxReleaseLimit; // the maximum amount of tokens that can be released in one transaction\r\n uint256 public minLimit; // the minimum amount of tokens that can be transferred in one transaction\r\n uint256 public prevLockLimit; // the lock limit *after* the last transaction\r\n uint256 public prevReleaseLimit; // the release limit *after* the last transaction\r\n uint256 public limitIncPerBlock; // how much the limit increases per block\r\n uint256 public prevLockBlockNumber; // the block number of the last lock transaction\r\n uint256 public prevReleaseBlockNumber; // the block number of the last release transaction\r\n uint8 public minRequiredReports; // minimum number of required reports to release tokens\r\n\r\n IERC20Token public override token; // erc20 token\r\n\r\n bool public xTransfersEnabled = true; // true if x transfers are enabled, false if not\r\n bool public reportingEnabled = true; // true if reporting is enabled, false if not\r\n\r\n // txId -> Transaction\r\n mapping (uint256 => Transaction) public transactions;\r\n\r\n // xTransferId -> txId\r\n mapping (uint256 => uint256) public transactionIds;\r\n\r\n // txId -> reporter -> true if reporter already reported txId\r\n mapping (uint256 => mapping (address => bool)) public reportedTxs;\r\n\r\n // address -> true if address is reporter\r\n mapping (address => bool) public reporters;\r\n\r\n /**\r\n * @dev triggered when tokens are locked in smart contract\r\n *\r\n * @param _from wallet address that the tokens are locked from\r\n * @param _amount amount locked\r\n */\r\n event TokensLock(\r\n address indexed _from,\r\n uint256 _amount\r\n );\r\n\r\n /**\r\n * @dev triggered when tokens are released by the smart contract\r\n *\r\n * @param _to wallet address that the tokens are released to\r\n * @param _amount amount released\r\n */\r\n event TokensRelease(\r\n address indexed _to,\r\n uint256 _amount\r\n );\r\n\r\n /**\r\n * @dev triggered when xTransfer is successfully called\r\n *\r\n * @param _from wallet address that initiated the xtransfer\r\n * @param _toBlockchain target blockchain\r\n * @param _to target wallet\r\n * @param _amount transfer amount\r\n * @param _id xtransfer id\r\n */\r\n event XTransfer(\r\n address indexed _from,\r\n bytes32 _toBlockchain,\r\n bytes32 indexed _to,\r\n uint256 _amount,\r\n uint256 _id\r\n );\r\n\r\n /**\r\n * @dev triggered when report is successfully submitted\r\n *\r\n * @param _reporter reporter wallet\r\n * @param _fromBlockchain source blockchain\r\n * @param _txId tx id on the source blockchain\r\n * @param _to target wallet\r\n * @param _amount transfer amount\r\n * @param _xTransferId xtransfer id\r\n */\r\n event TxReport(\r\n address indexed _reporter,\r\n bytes32 _fromBlockchain,\r\n uint256 _txId,\r\n address _to,\r\n uint256 _amount,\r\n uint256 _xTransferId\r\n );\r\n\r\n /**\r\n * @dev triggered when final report is successfully submitted\r\n *\r\n * @param _to target wallet\r\n * @param _id xtransfer id\r\n */\r\n event XTransferComplete(\r\n address _to,\r\n uint256 _id\r\n );\r\n\r\n /**\r\n * @dev initializes a new BancorX instance\r\n *\r\n * @param _maxLockLimit maximum amount of tokens that can be locked in one transaction\r\n * @param _maxReleaseLimit maximum amount of tokens that can be released in one transaction\r\n * @param _minLimit minimum amount of tokens that can be transferred in one transaction\r\n * @param _limitIncPerBlock how much the limit increases per block\r\n * @param _minRequiredReports minimum number of reporters to report transaction before tokens can be released\r\n * @param _registry address of contract registry\r\n * @param _token erc20 token\r\n */\r\n constructor(\r\n uint256 _maxLockLimit,\r\n uint256 _maxReleaseLimit,\r\n uint256 _minLimit,\r\n uint256 _limitIncPerBlock,\r\n uint8 _minRequiredReports,\r\n IContractRegistry _registry,\r\n IERC20Token _token\r\n ) ContractRegistryClient(_registry)\r\n public\r\n greaterThanZero(_maxLockLimit)\r\n greaterThanZero(_maxReleaseLimit)\r\n greaterThanZero(_minLimit)\r\n greaterThanZero(_limitIncPerBlock)\r\n greaterThanZero(_minRequiredReports)\r\n validAddress(address(_token))\r\n notThis(address(_token))\r\n {\r\n // validate input\r\n require(_minLimit <= _maxLockLimit && _minLimit <= _maxReleaseLimit, \"ERR_INVALID_MIN_LIMIT\");\r\n\r\n // the maximum limits, minimum limit, and limit increase per block\r\n maxLockLimit = _maxLockLimit;\r\n maxReleaseLimit = _maxReleaseLimit;\r\n minLimit = _minLimit;\r\n limitIncPerBlock = _limitIncPerBlock;\r\n minRequiredReports = _minRequiredReports;\r\n\r\n // previous limit is _maxLimit, and previous block number is current block number\r\n prevLockLimit = _maxLockLimit;\r\n prevReleaseLimit = _maxReleaseLimit;\r\n prevLockBlockNumber = block.number;\r\n prevReleaseBlockNumber = block.number;\r\n\r\n token = _token;\r\n }\r\n\r\n // validates that the caller is a reporter\r\n modifier reporterOnly {\r\n _reporterOnly();\r\n _;\r\n }\r\n\r\n // error message binary size optimization\r\n function _reporterOnly() internal view {\r\n require(reporters[msg.sender], \"ERR_ACCESS_DENIED\");\r\n }\r\n\r\n // allows execution only when x transfers are enabled\r\n modifier xTransfersAllowed {\r\n _xTransfersAllowed();\r\n _;\r\n }\r\n\r\n // error message binary size optimization\r\n function _xTransfersAllowed() internal view {\r\n require(xTransfersEnabled, \"ERR_DISABLED\");\r\n }\r\n\r\n // allows execution only when reporting is enabled\r\n modifier reportingAllowed {\r\n _reportingAllowed();\r\n _;\r\n }\r\n\r\n // error message binary size optimization\r\n function _reportingAllowed() internal view {\r\n require(reportingEnabled, \"ERR_DISABLED\");\r\n }\r\n\r\n /**\r\n * @dev setter\r\n *\r\n * @param _maxLockLimit new maxLockLimit\r\n */\r\n function setMaxLockLimit(uint256 _maxLockLimit) public ownerOnly greaterThanZero(_maxLockLimit) {\r\n maxLockLimit = _maxLockLimit;\r\n }\r\n\r\n /**\r\n * @dev setter\r\n *\r\n * @param _maxReleaseLimit new maxReleaseLimit\r\n */\r\n function setMaxReleaseLimit(uint256 _maxReleaseLimit) public ownerOnly greaterThanZero(_maxReleaseLimit) {\r\n maxReleaseLimit = _maxReleaseLimit;\r\n }\r\n\r\n /**\r\n * @dev setter\r\n *\r\n * @param _minLimit new minLimit\r\n */\r\n function setMinLimit(uint256 _minLimit) public ownerOnly greaterThanZero(_minLimit) {\r\n // validate input\r\n require(_minLimit <= maxLockLimit && _minLimit <= maxReleaseLimit, \"ERR_INVALID_MIN_LIMIT\");\r\n\r\n minLimit = _minLimit;\r\n }\r\n\r\n /**\r\n * @dev setter\r\n *\r\n * @param _limitIncPerBlock new limitIncPerBlock\r\n */\r\n function setLimitIncPerBlock(uint256 _limitIncPerBlock) public ownerOnly greaterThanZero(_limitIncPerBlock) {\r\n limitIncPerBlock = _limitIncPerBlock;\r\n }\r\n\r\n /**\r\n * @dev setter\r\n *\r\n * @param _minRequiredReports new minRequiredReports\r\n */\r\n function setMinRequiredReports(uint8 _minRequiredReports) public ownerOnly greaterThanZero(_minRequiredReports) {\r\n minRequiredReports = _minRequiredReports;\r\n }\r\n\r\n /**\r\n * @dev allows the owner to set/remove reporters\r\n *\r\n * @param _reporter reporter whos status is to be set\r\n * @param _active true if the reporter is approved, false otherwise\r\n */\r\n function setReporter(address _reporter, bool _active) public ownerOnly {\r\n reporters[_reporter] = _active;\r\n }\r\n\r\n /**\r\n * @dev allows the owner enable/disable the xTransfer method\r\n *\r\n * @param _enable true to enable, false to disable\r\n */\r\n function enableXTransfers(bool _enable) public ownerOnly {\r\n xTransfersEnabled = _enable;\r\n }\r\n\r\n /**\r\n * @dev allows the owner enable/disable the reportTransaction method\r\n *\r\n * @param _enable true to enable, false to disable\r\n */\r\n function enableReporting(bool _enable) public ownerOnly {\r\n reportingEnabled = _enable;\r\n }\r\n\r\n /**\r\n * @dev upgrades the contract to the latest version\r\n * can only be called by the owner\r\n * note that the owner needs to call acceptOwnership on the new contract after the upgrade\r\n *\r\n * @param _reporters new list of reporters\r\n */\r\n function upgrade(address[] memory _reporters) public ownerOnly {\r\n IBancorXUpgrader bancorXUpgrader = IBancorXUpgrader(addressOf(BANCOR_X_UPGRADER));\r\n\r\n transferOwnership(address(bancorXUpgrader));\r\n bancorXUpgrader.upgrade(version, _reporters);\r\n acceptOwnership();\r\n }\r\n\r\n /**\r\n * @dev claims tokens from msg.sender to be converted to tokens on another blockchain\r\n *\r\n * @param _toBlockchain blockchain on which tokens will be issued\r\n * @param _to address to send the tokens to\r\n * @param _amount the amount of tokens to transfer\r\n */\r\n function xTransfer(bytes32 _toBlockchain, bytes32 _to, uint256 _amount) public xTransfersAllowed {\r\n // get the current lock limit\r\n uint256 currentLockLimit = getCurrentLockLimit();\r\n\r\n // verify lock limit\r\n require(_amount >= minLimit && _amount <= currentLockLimit, \"ERR_AMOUNT_TOO_HIGH\");\r\n\r\n lockTokens(_amount);\r\n\r\n // set the previous lock limit and block number\r\n prevLockLimit = currentLockLimit.sub(_amount);\r\n prevLockBlockNumber = block.number;\r\n\r\n // emit XTransfer event with id of 0\r\n emit XTransfer(msg.sender, _toBlockchain, _to, _amount, 0);\r\n }\r\n\r\n /**\r\n * @dev claims tokens from msg.sender to be converted to tokens on another blockchain\r\n *\r\n * @param _toBlockchain blockchain on which tokens will be issued\r\n * @param _to address to send the tokens to\r\n * @param _amount the amount of tokens to transfer\r\n * @param _id pre-determined unique (if non zero) id which refers to this transaction\r\n */\r\n function xTransfer(bytes32 _toBlockchain, bytes32 _to, uint256 _amount, uint256 _id) public override xTransfersAllowed {\r\n // get the current lock limit\r\n uint256 currentLockLimit = getCurrentLockLimit();\r\n\r\n // require that; minLimit <= _amount <= currentLockLimit\r\n require(_amount >= minLimit && _amount <= currentLockLimit, \"ERR_AMOUNT_TOO_HIGH\");\r\n\r\n lockTokens(_amount);\r\n\r\n // set the previous lock limit and block number\r\n prevLockLimit = currentLockLimit.sub(_amount);\r\n prevLockBlockNumber = block.number;\r\n\r\n // emit XTransfer event\r\n emit XTransfer(msg.sender, _toBlockchain, _to, _amount, _id);\r\n }\r\n\r\n /**\r\n * @dev allows reporter to report transaction which occured on another blockchain\r\n *\r\n * @param _fromBlockchain blockchain in which tokens were destroyed\r\n * @param _txId transactionId of transaction thats being reported\r\n * @param _to address to receive tokens\r\n * @param _amount amount of tokens destroyed on another blockchain\r\n * @param _xTransferId unique (if non zero) pre-determined id (unlike _txId which is determined after the transactions been mined)\r\n */\r\n function reportTx(\r\n bytes32 _fromBlockchain,\r\n uint256 _txId,\r\n address _to,\r\n uint256 _amount,\r\n uint256 _xTransferId\r\n )\r\n public\r\n reporterOnly\r\n reportingAllowed\r\n validAddress(_to)\r\n greaterThanZero(_amount)\r\n {\r\n // require that the transaction has not been reported yet by the reporter\r\n require(!reportedTxs[_txId][msg.sender], \"ERR_ALREADY_REPORTED\");\r\n\r\n // set reported as true\r\n reportedTxs[_txId][msg.sender] = true;\r\n\r\n Transaction storage txn = transactions[_txId];\r\n\r\n // If the caller is the first reporter, set the transaction details\r\n if (txn.numOfReports == 0) {\r\n txn.to = _to;\r\n txn.amount = _amount;\r\n txn.fromBlockchain = _fromBlockchain;\r\n\r\n if (_xTransferId != 0) {\r\n // verify uniqueness of xTransfer id to prevent overwriting\r\n require(transactionIds[_xTransferId] == 0, \"ERR_TX_ALREADY_EXISTS\");\r\n transactionIds[_xTransferId] = _txId;\r\n }\r\n }\r\n else {\r\n // otherwise, verify transaction details\r\n require(txn.to == _to && txn.amount == _amount && txn.fromBlockchain == _fromBlockchain, \"ERR_TX_MISMATCH\");\r\n\r\n if (_xTransferId != 0)\r\n require(transactionIds[_xTransferId] == _txId, \"ERR_TX_ALREADY_EXISTS\");\r\n }\r\n\r\n // increment the number of reports\r\n txn.numOfReports++;\r\n\r\n emit TxReport(msg.sender, _fromBlockchain, _txId, _to, _amount, _xTransferId);\r\n\r\n // if theres enough reports, try to release tokens\r\n if (txn.numOfReports >= minRequiredReports) {\r\n require(!transactions[_txId].completed, \"ERR_TX_ALREADY_COMPLETED\");\r\n\r\n // set the transaction as completed\r\n transactions[_txId].completed = true;\r\n\r\n emit XTransferComplete(_to, _xTransferId);\r\n\r\n releaseTokens(_to, _amount);\r\n }\r\n }\r\n\r\n /**\r\n * @dev gets x transfer amount by xTransferId (not txId)\r\n *\r\n * @param _xTransferId unique (if non zero) pre-determined id (unlike _txId which is determined after the transactions been broadcasted)\r\n * @param _for address corresponding to xTransferId\r\n *\r\n * @return amount that was sent in xTransfer corresponding to _xTransferId\r\n */\r\n function getXTransferAmount(uint256 _xTransferId, address _for) public view override returns (uint256) {\r\n // xTransferId -> txId -> Transaction\r\n Transaction memory transaction = transactions[transactionIds[_xTransferId]];\r\n\r\n // verify that the xTransferId is for _for\r\n require(transaction.to == _for, \"ERR_TX_MISMATCH\");\r\n\r\n return transaction.amount;\r\n }\r\n\r\n /**\r\n * @dev method for calculating current lock limit\r\n *\r\n * @return the current maximum limit of tokens that can be locked\r\n */\r\n function getCurrentLockLimit() public view returns (uint256) {\r\n // prevLockLimit + ((currBlockNumber - prevLockBlockNumber) * limitIncPerBlock)\r\n uint256 currentLockLimit = prevLockLimit.add(((block.number).sub(prevLockBlockNumber)).mul(limitIncPerBlock));\r\n if (currentLockLimit > maxLockLimit)\r\n return maxLockLimit;\r\n return currentLockLimit;\r\n }\r\n\r\n /**\r\n * @dev method for calculating current release limit\r\n *\r\n * @return the current maximum limit of tokens that can be released\r\n */\r\n function getCurrentReleaseLimit() public view returns (uint256) {\r\n // prevReleaseLimit + ((currBlockNumber - prevReleaseBlockNumber) * limitIncPerBlock)\r\n uint256 currentReleaseLimit = prevReleaseLimit.add(((block.number).sub(prevReleaseBlockNumber)).mul(limitIncPerBlock));\r\n if (currentReleaseLimit > maxReleaseLimit)\r\n return maxReleaseLimit;\r\n return currentReleaseLimit;\r\n }\r\n\r\n /**\r\n * @dev claims and locks tokens from msg.sender to be converted to tokens on another blockchain\r\n *\r\n * @param _amount the amount of tokens to lock\r\n */\r\n function lockTokens(uint256 _amount) private {\r\n safeTransferFrom(token, msg.sender, address(this), _amount);\r\n emit TokensLock(msg.sender, _amount);\r\n }\r\n\r\n /**\r\n * @dev private method to release tokens held by the contract\r\n *\r\n * @param _to the address to release tokens to\r\n * @param _amount the amount of tokens to release\r\n */\r\n function releaseTokens(address _to, uint256 _amount) private {\r\n // get the current release limit\r\n uint256 currentReleaseLimit = getCurrentReleaseLimit();\r\n\r\n require(_amount >= minLimit && _amount <= currentReleaseLimit, \"ERR_AMOUNT_TOO_HIGH\");\r\n\r\n // update the previous release limit and block number\r\n prevReleaseLimit = currentReleaseLimit.sub(_amount);\r\n prevReleaseBlockNumber = block.number;\r\n\r\n // no need to require, reverts on failure\r\n safeTransfer(token, _to, _amount);\r\n\r\n emit TokensRelease(_to, _amount);\r\n }\r\n}\r\n",
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