Bump aux version

Add explicit token type toggle in contract migration

See merge request grassrootseconomics/cic-internal-integration!216

.gitignore

@@ -8,3 +8,8 @@ gmon.out
 *.egg-info
 dist/
 build/
+**/*sqlite
+**/.nyc_output
+**/coverage
+**/.venv
+.idea

.gitlab-ci.yml

@@ -6,6 +6,7 @@ include:
   - local: 'apps/cic-notify/.gitlab-ci.yml'
   - local: 'apps/cic-meta/.gitlab-ci.yml'
   - local: 'apps/cic-cache/.gitlab-ci.yml'
+  - local: 'apps/data-seeding/.gitlab-ci.yml'
 
 stages:
   - build

apps/cic-cache/cic_cache/cache.py

@@ -1,22 +1,28 @@
 # standard imports
 import logging
+import datetime
 
-# third-party imports
+# external imports
 import moolb
 
 # local imports
-from cic_cache.db import list_transactions_mined
-from cic_cache.db import list_transactions_account_mined
+from cic_cache.db.list import (
+        list_transactions_mined,
+        list_transactions_account_mined,
+        list_transactions_mined_with_data,
+        )
 
 logg = logging.getLogger()
 
 
-class BloomCache:
+class Cache:
 
     def __init__(self, session):
         self.session = session
 
 
+class BloomCache(Cache):
+
     @staticmethod
     def __get_filter_size(n):
         n = 8192 * 8
@@ -87,3 +93,44 @@ class BloomCache:
             f_blocktx.add(block + tx)
             logg.debug('added block {} tx {} lo {} hi {}'.format(r[0], r[1], lowest_block, highest_block))
         return (lowest_block, highest_block, f_block.to_bytes(), f_blocktx.to_bytes(),)
+
+
+class DataCache(Cache):
+
+    def load_transactions_with_data(self, offset, end):
+        rows = list_transactions_mined_with_data(self.session, offset, end) 
+        tx_cache = []
+        highest_block = -1;
+        lowest_block = -1;
+        date_is_str = None # stick this in startup
+        for r in rows:
+            if highest_block == -1:
+                highest_block = r['block_number']
+            lowest_block = r['block_number']
+            tx_type = 'unknown'
+
+            if r['value'] != None:
+                tx_type = '{}.{}'.format(r['domain'], r['value'])
+
+            if date_is_str == None:
+                date_is_str = type(r['date_block']).__name__ == 'str'
+
+            o = {
+                'block_number': r['block_number'],
+                'tx_hash': r['tx_hash'],
+                'date_block': r['date_block'],
+                'sender': r['sender'],
+                'recipient': r['recipient'],
+                'from_value': int(r['from_value']),
+                'to_value': int(r['to_value']),
+                'source_token': r['source_token'],
+                'destination_token': r['destination_token'],
+                'success': r['success'],
+                'tx_type': tx_type,
+            }
+
+            if date_is_str:
+                o['date_block'] = datetime.datetime.fromisoformat(r['date_block'])
+
+            tx_cache.append(o)
+        return (lowest_block, highest_block, tx_cache)

apps/cic-cache/cic_cache/db/list.py

@@ -28,6 +28,26 @@ def list_transactions_mined(
     return r
 
 
+def list_transactions_mined_with_data(
+        session,
+        offset,
+        end,
+        ):
+    """Executes db query to return all confirmed transactions according to the specified offset and limit.
+
+    :param offset: Offset in data set to return transactions from
+    :type offset: int
+    :param limit: Max number of transactions to retrieve
+    :type limit: int
+    :result: Result set
+    :rtype: SQLAlchemy.ResultProxy
+    """
+    s = "SELECT tx_hash, block_number, date_block, sender, recipient, from_value, to_value, source_token, destination_token, success, domain, value FROM tx LEFT JOIN tag_tx_link ON tx.id = tag_tx_link.tx_id LEFT JOIN tag ON tag_tx_link.tag_id = tag.id WHERE block_number >= {} AND block_number <= {} ORDER BY block_number ASC, tx_index ASC".format(offset, end)
+
+    r = session.execute(s)
+    return r
+
+
 def list_transactions_account_mined(
         session,
         address,

apps/cic-cache/cic_cache/runnable/daemons/query.py

@@ -0,0 +1,110 @@
+# standard imports
+import logging
+import json
+import re
+import base64
+
+# local imports
+from cic_cache.cache import (
+        BloomCache,
+        DataCache,
+    )
+
+logg = logging.getLogger(__name__)
+
+re_transactions_all_bloom = r'/tx/(\d+)?/?(\d+)/?'
+re_transactions_account_bloom = r'/tx/user/((0x)?[a-fA-F0-9]+)/?(\d+)?/?(\d+)/?'
+re_transactions_all_data = r'/txa/(\d+)/(\d+)/?'
+
+DEFAULT_LIMIT = 100
+
+
+def process_transactions_account_bloom(session, env):
+    r = re.match(re_transactions_account_bloom, env.get('PATH_INFO'))
+    if not r:
+        return None
+
+    address = r[1]
+    if r[2] == None:
+        address = '0x' + address
+    offset = DEFAULT_LIMIT
+    if r.lastindex > 2:
+        offset = r[3]
+    limit = 0
+    if r.lastindex > 3:
+        limit = r[4]
+
+    c = BloomCache(session)
+    (lowest_block, highest_block, bloom_filter_block, bloom_filter_tx) = c.load_transactions_account(address, offset, limit)
+
+    o = {
+        'alg': 'sha256',
+        'low': lowest_block,
+        'high': highest_block,
+        'block_filter': base64.b64encode(bloom_filter_block).decode('utf-8'),
+        'blocktx_filter': base64.b64encode(bloom_filter_tx).decode('utf-8'),
+        'filter_rounds': 3,
+            }
+
+    j = json.dumps(o)
+
+    return ('application/json', j.encode('utf-8'),)
+
+
+def process_transactions_all_bloom(session, env):
+    r = re.match(re_transactions_all_bloom, env.get('PATH_INFO'))
+    if not r:
+        return None
+
+    offset = DEFAULT_LIMIT
+    if r.lastindex > 0:
+        offset = r[1]
+    limit = 0
+    if r.lastindex > 1:
+        limit = r[2]
+
+    c = BloomCache(session)
+    (lowest_block, highest_block, bloom_filter_block, bloom_filter_tx) = c.load_transactions(offset, limit)
+
+    o = {
+        'alg': 'sha256',
+        'low': lowest_block,
+        'high': highest_block,
+        'block_filter': base64.b64encode(bloom_filter_block).decode('utf-8'),
+        'blocktx_filter': base64.b64encode(bloom_filter_tx).decode('utf-8'),
+        'filter_rounds': 3,
+            }
+
+    j = json.dumps(o)
+
+    return ('application/json', j.encode('utf-8'),)
+
+
+def process_transactions_all_data(session, env):
+    r = re.match(re_transactions_all_data, env.get('PATH_INFO'))
+    if not r:
+        return None
+    if env.get('HTTP_X_CIC_CACHE_MODE') != 'all':
+        return None
+
+    offset = r[1]
+    end = r[2]
+    if int(r[2]) < int(r[1]):
+        raise ValueError('cart before the horse, dude')
+
+    c = DataCache(session)
+    (lowest_block, highest_block, tx_cache) = c.load_transactions_with_data(offset, end)
+
+    for r in tx_cache:
+        r['date_block'] = r['date_block'].timestamp()
+
+    o = {
+        'low': lowest_block,
+        'high': highest_block,
+        'data': tx_cache,
+    }
+
+    
+    j = json.dumps(o)
+
+    return ('application/json', j.encode('utf-8'),)

apps/cic-cache/cic_cache/runnable/daemons/server.py

@@ -1,18 +1,20 @@
 # standard imports
 import os
-import re
 import logging
 import argparse
-import json
 import base64
 
-# third-party imports
+# external imports
 import confini
 
 # local imports
-from cic_cache import BloomCache
 from cic_cache.db import dsn_from_config
 from cic_cache.db.models.base import SessionBase
+from cic_cache.runnable.daemons.query import (
+        process_transactions_account_bloom,
+        process_transactions_all_bloom,
+        process_transactions_all_data,
+        )
 
 logging.basicConfig(level=logging.WARNING)
 logg = logging.getLogger()
@@ -44,72 +46,6 @@ logg.debug('config:\n{}'.format(config))
 dsn = dsn_from_config(config)
 SessionBase.connect(dsn, config.true('DATABASE_DEBUG'))
 
-re_transactions_all_bloom = r'/tx/(\d+)?/?(\d+)/?'
-re_transactions_account_bloom = r'/tx/user/((0x)?[a-fA-F0-9]+)/?(\d+)?/?(\d+)/?'
-
-DEFAULT_LIMIT = 100
-
-
-def process_transactions_account_bloom(session, env):
-    r = re.match(re_transactions_account_bloom, env.get('PATH_INFO'))
-    if not r:
-        return None
-
-    address = r[1]
-    if r[2] == None:
-        address = '0x' + address
-    offset = DEFAULT_LIMIT
-    if r.lastindex > 2:
-        offset = r[3]
-    limit = 0
-    if r.lastindex > 3:
-        limit = r[4]
-
-    c = BloomCache(session)
-    (lowest_block, highest_block, bloom_filter_block, bloom_filter_tx) = c.load_transactions_account(address, offset, limit)
-
-    o = {
-        'alg': 'sha256',
-        'low': lowest_block,
-        'high': highest_block,
-        'block_filter': base64.b64encode(bloom_filter_block).decode('utf-8'),
-        'blocktx_filter': base64.b64encode(bloom_filter_tx).decode('utf-8'),
-        'filter_rounds': 3,
-            }
-
-    j = json.dumps(o)
-
-    return ('application/json', j.encode('utf-8'),)
-
-
-def process_transactions_all_bloom(session, env):
-    r = re.match(re_transactions_all_bloom, env.get('PATH_INFO'))
-    if not r:
-        return None
-
-    offset = DEFAULT_LIMIT
-    if r.lastindex > 0:
-        offset = r[1]
-    limit = 0
-    if r.lastindex > 1:
-        limit = r[2]
-
-    c = BloomCache(session)
-    (lowest_block, highest_block, bloom_filter_block, bloom_filter_tx) = c.load_transactions(offset, limit)
-
-    o = {
-        'alg': 'sha256',
-        'low': lowest_block,
-        'high': highest_block,
-        'block_filter': base64.b64encode(bloom_filter_block).decode('utf-8'),
-        'blocktx_filter': base64.b64encode(bloom_filter_tx).decode('utf-8'),
-        'filter_rounds': 3,
-            }
-
-    j = json.dumps(o)
-
-    return ('application/json', j.encode('utf-8'),)
-
 
 # uwsgi application
 def application(env, start_response):
@@ -119,10 +55,16 @@ def application(env, start_response):
 
     session = SessionBase.create_session()
     for handler in [
+            process_transactions_all_data,
             process_transactions_all_bloom,
             process_transactions_account_bloom,
             ]:
-        r = handler(session, env)
+        r = None
+        try:
+            r = handler(session, env)
+        except ValueError as e:
+            start_response('400 {}'.format(str(e)))
+            return []
         if r != None:
             (mime_type, content) = r
             break

apps/cic-cache/cic_cache/runnable/daemons/tracker.py

@@ -16,6 +16,7 @@ import cic_base.config
 import cic_base.log
 import cic_base.argparse
 import cic_base.rpc
+from cic_base.eth.syncer import chain_interface
 from cic_eth_registry import CICRegistry
 from cic_eth_registry.error import UnknownContractError
 from chainlib.chain import ChainSpec
@@ -28,10 +29,8 @@ from hexathon import (
         strip_0x,
         )
 from chainsyncer.backend.sql import SQLBackend
-from chainsyncer.driver import (
-        HeadSyncer,
-        HistorySyncer,
-        )
+from chainsyncer.driver.head import HeadSyncer
+from chainsyncer.driver.history import HistorySyncer
 from chainsyncer.db.models.base import SessionBase
 
 # local imports
@@ -46,12 +45,21 @@ from cic_cache.runnable.daemons.filters import (
 
 script_dir = os.path.realpath(os.path.dirname(__file__))
 
+def add_block_args(argparser):
+    argparser.add_argument('--history-start', type=int, default=0, dest='history_start', help='Start block height for initial history sync')
+    argparser.add_argument('--no-history', action='store_true', dest='no_history', help='Skip initial history sync')
+    return argparser
+
+
 logg = cic_base.log.create()
 argparser = cic_base.argparse.create(script_dir, cic_base.argparse.full_template)
-#argparser = cic_base.argparse.add(argparser, add_traffic_args, 'traffic')
+argparser = cic_base.argparse.add(argparser, add_block_args, 'block')
 args = cic_base.argparse.parse(argparser, logg)
 config = cic_base.config.create(args.c, args, args.env_prefix)
 
+config.add(args.history_start, 'SYNCER_HISTORY_START', True)
+config.add(args.no_history, '_NO_HISTORY', True)
+
 cic_base.config.log(config)
 
 dsn = dsn_from_config(config)
@@ -60,7 +68,6 @@ SessionBase.connect(dsn, debug=config.true('DATABASE_DEBUG'))
 
 chain_spec = ChainSpec.from_chain_str(config.get('CIC_CHAIN_SPEC'))
 
-#RPCConnection.register_location(config.get('ETH_PROVIDER'), chain_spec, 'default')
 cic_base.rpc.setup(chain_spec, config.get('ETH_PROVIDER'))
 
 
@@ -84,7 +91,7 @@ def main():
     r = rpc.do(o)
     block_offset = int(strip_0x(r), 16) + 1
 
-    logg.debug('starting at block {}'.format(block_offset))
+    logg.debug('current block height {}'.format(block_offset))
 
     syncers = []
 
@@ -93,17 +100,22 @@ def main():
     syncer_backends = SQLBackend.resume(chain_spec, block_offset)
 
     if len(syncer_backends) == 0:
-        logg.info('found no backends to resume')
-        syncer_backends.append(SQLBackend.initial(chain_spec, block_offset))
+        initial_block_start = config.get('SYNCER_HISTORY_START')
+        initial_block_offset = block_offset
+        if config.get('_NO_HISTORY'):
+            initial_block_start = block_offset
+            initial_block_offset += 1
+        syncer_backends.append(SQLBackend.initial(chain_spec, initial_block_offset, start_block_height=initial_block_start))
+        logg.info('found no backends to resume, adding initial sync from history start {} end {}'.format(initial_block_start, initial_block_offset))
     else:
         for syncer_backend in syncer_backends:
             logg.info('resuming sync session {}'.format(syncer_backend))
 
     for syncer_backend in syncer_backends:
-        syncers.append(HistorySyncer(syncer_backend))
+        syncers.append(HistorySyncer(syncer_backend, chain_interface))
 
     syncer_backend = SQLBackend.live(chain_spec, block_offset+1)
-    syncers.append(HeadSyncer(syncer_backend))
+    syncers.append(HeadSyncer(syncer_backend, chain_interface))
 
     trusted_addresses_src = config.get('CIC_TRUST_ADDRESS')
     if trusted_addresses_src == None:

apps/cic-cache/config/docker/eth.ini

@@ -1,2 +1,2 @@
 [eth]
-provider = ws://localhost:63546
+provider = http://localhost:63545

apps/cic-cache/config/docker/syncer.ini

@@ -1,2 +1,3 @@
 [syncer]
 loop_interval = 1
+history_start = 0

apps/cic-cache/config/syncer.ini

@@ -1,2 +1,3 @@
 [syncer]
 loop_interval = 5
+history_start = 0

apps/cic-cache/config/test/syncer.ini

@@ -0,0 +1,2 @@
+[syncer]
+loop_interval = 1

apps/cic-cache/requirements.txt

@@ -1,12 +1,13 @@
-cic-base~=0.1.2b9
+cic-base==0.1.3a3+build.984b5cff
 alembic==1.4.2
 confini~=0.3.6rc3
 uwsgi==2.0.19.1
 moolb~=0.1.0
-cic-eth-registry~=0.5.5a4
+cic-eth-registry~=0.5.6a1
 SQLAlchemy==1.3.20
 semver==2.13.0
 psycopg2==2.8.6
 celery==4.4.7
 redis==3.5.3
-chainsyncer[sql]~=0.0.2a4
+chainsyncer[sql]~=0.0.3a3
+erc20-faucet~=0.2.2a1

apps/cic-cache/scripts/migrate.py

@@ -2,6 +2,7 @@
 import os
 import argparse
 import logging
+import re
 
 import alembic
 from alembic.config import Config as AlembicConfig
@@ -23,6 +24,8 @@ 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('--reset', action='store_true', help='downgrade before upgrading')
+argparser.add_argument('-f', action='store_true', help='force action')
 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()
@@ -53,4 +56,10 @@ ac = AlembicConfig(os.path.join(migrations_dir, 'alembic.ini'))
 ac.set_main_option('sqlalchemy.url', dsn)
 ac.set_main_option('script_location', migrations_dir)
 
+if args.reset:
+    if not args.f:
+        if not re.match(r'[yY][eE]?[sS]?', input('EEK! this will DELETE the existing db. are you sure??')):
+            logg.error('user chickened out on requested reset, bailing')
+            sys.exit(1)
+    alembic.command.downgrade(ac, 'base')
 alembic.command.upgrade(ac, 'head')

apps/cic-cache/test_requirements.txt

@@ -6,6 +6,5 @@ sqlparse==0.4.1
 pytest-celery==0.0.0a1
 eth_tester==0.5.0b3
 py-evm==0.3.0a20
-web3==5.12.2
-cic-eth-registry~=0.5.5a3
-cic-base[full]==0.1.2b8
+cic_base[full]==0.1.3a3+build.984b5cff
+sarafu-faucet~=0.0.4a1

apps/cic-cache/tests/conftest.py

@@ -88,3 +88,16 @@ def txs(
             tx_hash_first,
             tx_hash_second,
             ]
+
+
+@pytest.fixture(scope='function')
+def tag_txs(
+        init_database,
+        txs,
+        ):
+
+    db.add_tag(init_database, 'taag', domain='test')
+    init_database.commit()
+
+    db.tag_transaction(init_database, txs[1], 'taag', domain='test')
+

apps/cic-cache/tests/test_api.py

@@ -0,0 +1,31 @@
+# standard imports
+import json
+
+# external imports
+import pytest
+
+# local imports
+from cic_cache.runnable.daemons.query import process_transactions_all_data
+
+
+def test_api_all_data(
+        init_database,
+        txs,
+        ):
+
+    env = {
+        'PATH_INFO': '/txa/410000/420000',
+        'HTTP_X_CIC_CACHE_MODE': 'all',
+            }
+    j = process_transactions_all_data(init_database, env)
+    o = json.loads(j[1])
+    
+    assert len(o['data']) == 2
+
+    env = {
+        'PATH_INFO': '/txa/420000/410000',
+        'HTTP_X_CIC_CACHE_MODE': 'all',
+            }
+   
+    with pytest.raises(ValueError):
+        j = process_transactions_all_data(init_database, env)

apps/cic-cache/tests/test_cache.py

@@ -9,6 +9,7 @@ import pytest
 
 # local imports
 from cic_cache import BloomCache
+from cic_cache.cache import DataCache
 
 logg = logging.getLogger()
 
@@ -33,3 +34,23 @@ def test_cache(
 
     assert b[0] == list_defaults['block'] - 1
 
+
+def test_cache_data(
+        init_database,
+        list_defaults,
+        list_actors,
+        list_tokens,
+        txs,
+        tag_txs,
+        ):
+
+    session = init_database
+
+    c = DataCache(session)
+    b = c.load_transactions_with_data(410000, 420000)
+
+    assert len(b[2]) == 2
+    assert b[2][0]['tx_hash'] == txs[1]
+    assert b[2][1]['tx_type'] == 'unknown'
+    assert b[2][0]['tx_type'] == 'test.taag'
+    

apps/cic-eth-aux/erc20-demurrage-token/MANIFEST.in

@@ -0,0 +1 @@
+include *requirements.txt

apps/cic-eth-aux/erc20-demurrage-token/cic_eth_aux/erc20_demurrage_token/__init__.py

@@ -0,0 +1,53 @@
+# standard imports
+import logging
+
+# external imports
+import celery
+from erc20_demurrage_token.demurrage import DemurrageCalculator
+from chainlib.connection import RPCConnection
+from chainlib.chain import ChainSpec
+from chainlib.eth.constant import ZERO_ADDRESS
+from cic_eth_registry import CICRegistry
+
+logg = logging.getLogger(__name__)
+
+celery_app = celery.current_app
+
+
+class NoopCalculator:
+
+    def amount_since(self, amount, timestamp):
+        logg.debug('noopcalculator amount {} timestamp {}'.format(amount, timestamp))
+        return amount
+
+
+class DemurrageCalculationTask(celery.Task):
+
+    demurrage_token_calcs = {}
+
+    @classmethod
+    def register_token(cls, rpc, chain_spec, token_symbol, sender_address=ZERO_ADDRESS):
+        registry = CICRegistry(chain_spec, rpc)
+        token_address = registry.by_name(token_symbol, sender_address=sender_address)
+        try:
+            c = DemurrageCalculator.from_contract(rpc, chain_spec, token_address, sender_address=sender_address)
+            logg.info('found demurrage calculator for ERC20 {} @ {}'.format(token_symbol, token_address))
+        except:
+            logg.warning('Token {} at address {} does not appear to be a demurrage contract. Calls to balance adjust for this token will always return the same amount'.format(token_symbol, token_address))
+            c = NoopCalculator()
+
+        cls.demurrage_token_calcs[token_symbol] = c
+
+
+@celery_app.task(bind=True, base=DemurrageCalculationTask)
+def get_adjusted_balance(self, token_symbol, amount, timestamp):
+    c = self.demurrage_token_calcs[token_symbol]
+    return c.amount_since(amount, timestamp)
+
+
+def aux_setup(rpc, config, sender_address=ZERO_ADDRESS):
+    chain_spec_str = config.get('CIC_CHAIN_SPEC')
+    chain_spec = ChainSpec.from_chain_str(chain_spec_str)
+    token_symbol = config.get('CIC_DEFAULT_TOKEN_SYMBOL')
+    
+    DemurrageCalculationTask.register_token(rpc, chain_spec, token_symbol, sender_address=sender_address)

apps/cic-eth-aux/erc20-demurrage-token/cic_eth_aux/erc20_demurrage_token/api.py

@@ -0,0 +1,30 @@
+# standard imports
+import logging
+
+# external imports 
+import celery
+from cic_eth.api.base import ApiBase
+
+app = celery.current_app
+
+logg = logging.getLogger(__name__)
+
+
+class Api(ApiBase):
+   
+    def get_adjusted_balance(self, token_symbol, balance, timestamp):
+        s = celery.signature(
+                'cic_eth_aux.erc20_demurrage_token.get_adjusted_balance',
+                [
+                    token_symbol,
+                    balance,
+                    timestamp,
+                    ],
+                queue=None,
+                )
+        if self.callback_param != None:
+            s.link(self.callback_success)
+            s.link.on_error(self.callback_error)
+
+        t = s.apply_async(queue=self.queue)
+        return t

apps/cic-eth-aux/erc20-demurrage-token/requirements.txt

@@ -0,0 +1,5 @@
+celery==4.4.7
+erc20-demurrage-token~=0.0.2a3
+cic-eth-registry~=0.5.6a1
+chainlib~=0.0.5a1
+cic_eth~=0.12.0a2

apps/cic-eth-aux/erc20-demurrage-token/setup.cfg

@@ -0,0 +1,30 @@
+[metadata]
+name = cic-eth-aux-erc20-demurrage-token
+version = 0.0.2a4
+description = cic-eth tasks supporting erc20 demurrage token
+author = Louis Holbrook
+author_email = dev@holbrook.no
+url = https://gitlab.com/ccicnet/erc20-demurrage-token
+keywords =
+	ethereum
+	blockchain
+	cryptocurrency
+	erc20
+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
+
+[options]
+include_package_data = True
+python_requires = >= 3.6
+packages =
+	cic_eth_aux.erc20_demurrage_token

apps/cic-eth-aux/erc20-demurrage-token/setup.py

@@ -0,0 +1,25 @@
+from setuptools import setup
+
+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,
+        )

apps/cic-eth-aux/erc20-demurrage-token/test_requirements.txt

@@ -0,0 +1,12 @@
+pytest==6.0.1
+pytest-celery==0.0.0a1
+pytest-mock==3.3.1
+pytest-cov==2.10.1
+eth-tester==0.5.0b3
+py-evm==0.3.0a20
+SQLAlchemy==1.3.20
+cic-eth~=0.12.0a1
+liveness~=0.0.1a7
+eth-accounts-index==0.0.12a1
+eth-contract-registry==0.5.6a1
+eth-address-index==0.1.2a1

apps/cic-eth-aux/erc20-demurrage-token/tests/conftest.py

@@ -0,0 +1,88 @@
+# external imports
+import celery
+from chainlib.eth.pytest.fixtures_chain import *
+from chainlib.eth.pytest.fixtures_ethtester import *
+from cic_eth_registry.pytest.fixtures_contracts import *
+from cic_eth_registry.pytest.fixtures_tokens import *
+from erc20_demurrage_token.unittest.base import TestTokenDeploy
+from erc20_demurrage_token.token import DemurrageToken
+from eth_token_index.index import TokenUniqueSymbolIndex
+from eth_address_declarator.declarator import AddressDeclarator
+
+# cic-eth imports
+from cic_eth.pytest.fixtures_celery import *
+from cic_eth.pytest.fixtures_token import *
+from cic_eth.pytest.fixtures_config import *
+
+
+@pytest.fixture(scope='function')
+def demurrage_token(
+        default_chain_spec,
+        eth_rpc,
+        token_registry,
+        contract_roles,
+        eth_signer,
+        ):
+    d = TestTokenDeploy(eth_rpc, token_symbol='BAR', token_name='Bar Token')
+    nonce_oracle = RPCNonceOracle(contract_roles['CONTRACT_DEPLOYER'], conn=eth_rpc)
+    c = DemurrageToken(default_chain_spec, signer=eth_signer, nonce_oracle=nonce_oracle)
+    token_address =  d.deploy(eth_rpc, contract_roles['CONTRACT_DEPLOYER'], c, 'SingleNocap')
+    logg.debug('demurrage token contract "BAR" deployed to {}'.format(token_address))
+
+    return token_address
+    
+
+@pytest.fixture(scope='function')
+def demurrage_token_symbol(
+        default_chain_spec,
+        eth_rpc,
+        demurrage_token,
+        contract_roles,
+        ):
+
+    c = DemurrageToken(default_chain_spec)
+    o = c.symbol(demurrage_token, sender_address=contract_roles['CONTRACT_DEPLOYER'])
+    r = eth_rpc.do(o)
+    return c.parse_symbol(r)
+
+
+@pytest.fixture(scope='function')
+def demurrage_token_declaration(
+        foo_token_declaration,
+        ):
+    return foo_token_declaration
+
+
+@pytest.fixture(scope='function')
+def register_demurrage_token(
+        default_chain_spec,
+        token_registry,
+        eth_rpc,
+        eth_signer,
+        register_lookups,
+        contract_roles,
+        demurrage_token_declaration,
+        demurrage_token,
+        address_declarator,
+        ):
+
+    nonce_oracle = RPCNonceOracle(contract_roles['CONTRACT_DEPLOYER'], eth_rpc)
+
+    c = TokenUniqueSymbolIndex(default_chain_spec, signer=eth_signer, nonce_oracle=nonce_oracle)
+    (tx_hash_hex, o) = c.register(token_registry, contract_roles['CONTRACT_DEPLOYER'], demurrage_token)
+    eth_rpc.do(o)
+    o = receipt(tx_hash_hex)
+    r = eth_rpc.do(o)
+    assert r['status'] == 1
+
+    nonce_oracle = RPCNonceOracle(contract_roles['TRUSTED_DECLARATOR'], eth_rpc)
+    c = AddressDeclarator(default_chain_spec, signer=eth_signer, nonce_oracle=nonce_oracle)
+    (tx_hash_hex, o) = c.add_declaration(address_declarator, contract_roles['TRUSTED_DECLARATOR'], demurrage_token, demurrage_token_declaration)
+
+    eth_rpc.do(o)
+    o = receipt(tx_hash_hex)
+    r = eth_rpc.do(o)
+    assert r['status'] == 1
+
+    return token_registry
+

apps/cic-eth-aux/erc20-demurrage-token/tests/test_demurrage_task.py

@@ -0,0 +1,69 @@
+# standard imports
+import logging
+import copy
+import datetime
+
+# external imports
+import celery
+
+# cic-eth imports
+from cic_eth_aux.erc20_demurrage_token import (
+        DemurrageCalculationTask,
+        aux_setup,
+        )
+from cic_eth_aux.erc20_demurrage_token.api import Api as AuxApi
+
+logg = logging.getLogger()
+
+
+def test_demurrage_calulate_task(
+        default_chain_spec,
+        eth_rpc,
+        cic_registry,
+        celery_session_worker,
+        register_demurrage_token,
+        demurrage_token_symbol,
+        contract_roles,
+        load_config,
+        ):
+ 
+    config = copy.copy(load_config)
+    config.add(str(default_chain_spec), 'CIC_CHAIN_SPEC', exists_ok=True)
+    config.add(demurrage_token_symbol, 'CIC_DEFAULT_TOKEN_SYMBOL', exists_ok=True)
+    aux_setup(eth_rpc, load_config, sender_address=contract_roles['CONTRACT_DEPLOYER'])
+
+    since = datetime.datetime.utcnow() - datetime.timedelta(minutes=1)
+    s = celery.signature(
+            'cic_eth_aux.erc20_demurrage_token.get_adjusted_balance',
+            [
+                demurrage_token_symbol,
+                1000,
+                since.timestamp(),
+                ],
+            queue=None,
+            )
+    t = s.apply_async()
+    r = t.get_leaf()
+    assert t.successful()
+    assert r == 980
+
+
+
+def test_demurrage_calculate_api(
+        default_chain_spec,
+        eth_rpc,
+        cic_registry,
+        celery_session_worker,
+        register_demurrage_token,
+        demurrage_token_symbol,
+        contract_roles,
+        load_config,
+        ):
+
+        api = AuxApi(str(default_chain_spec), queue=None)
+        since = datetime.datetime.utcnow() - datetime.timedelta(minutes=1)
+        t = api.get_adjusted_balance(demurrage_token_symbol, 1000, since.timestamp())
+        r = t.get_leaf()
+        assert t.successful()
+        assert r == 980
+

apps/cic-eth/.coveragerc

@@ -5,3 +5,5 @@ omit =
 	cic_eth/db/migrations/*
 	cic_eth/sync/head.py
 	cic_eth/sync/mempool.py
+	cic_eth/queue/state.py
+	*redis*.py

apps/cic-eth/.gitlab-ci.yml

@@ -3,20 +3,29 @@
         APP_NAME: cic-eth
         DOCKERFILE_PATH: $APP_NAME/docker/Dockerfile
 
-.cic_eth_changes_target:
+.cic_eth_mr_changes_target:
     rules:
-        - changes:
-            - $CONTEXT/$APP_NAME/*
+    - if: $CI_PIPELINE_SOURCE == "merge_request_event"
+      changes:
+          - $CONTEXT/$APP_NAME/**/*
+      when: always
 
 build-mr-cic-eth:
     extends:
-        - .cic_eth_changes_target
-        - .py_build_merge_request
         - .cic_eth_variables
+        - .cic_eth_mr_changes_target
+        - .py_build_target_test
+
+test-mr-cic-eth:
+    extends:
+        - .cic_eth_variables
+        - .cic_eth_mr_changes_target
+    stage: test
+    image: $IMAGE_TAG_BASE
+    script:
+        - cd apps/$APP_NAME/
+        - pytest -x --cov=cic_eth --cov-fail-under=90 --cov-report term-missing tests
 
 build-push-cic-eth:
     extends:
         - .py_build_push
-        - .cic_eth_variables
-        
-

apps/cic-eth/MANIFEST.in

@@ -0,0 +1,2 @@
+include *requirements.txt config/test/*
+

apps/cic-eth/admin_requirements.txt

@@ -0,0 +1,5 @@
+SQLAlchemy==1.3.20
+cic-eth-registry~=0.5.6a1
+hexathon~=0.0.1a7
+chainqueue~=0.0.2b5
+eth-erc20==0.0.10a2

apps/cic-eth/cic_eth/admin/nonce.py

@@ -4,11 +4,18 @@ import logging
 # external imports
 import celery
 from chainlib.chain import ChainSpec
-from chainlib.eth.tx import unpack
-from chainqueue.query import get_tx
-from chainqueue.state import set_cancel
+from chainlib.connection import RPCConnection
+from chainlib.eth.tx import (
+        unpack,
+        TxFactory,
+        )
+from chainlib.eth.gas import OverrideGasOracle
+from chainqueue.sql.query import get_tx
+from chainqueue.sql.state import set_cancel
 from chainqueue.db.models.otx import Otx
 from chainqueue.db.models.tx import TxCache
+from hexathon import strip_0x
+from potaahto.symbols import snake_and_camel
 
 # local imports
 from cic_eth.db.models.base import SessionBase
@@ -21,13 +28,14 @@ from cic_eth.admin.ctrl import (
         )
 from cic_eth.queue.tx import queue_create
 from cic_eth.eth.gas import create_check_gas_task
+from cic_eth.task import BaseTask
 
 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):
+@celery_app.task(bind=True, base=BaseTask)
+def shift_nonce(self, chainspec_dict, 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.
@@ -38,25 +46,29 @@ def shift_nonce(self, chain_str, tx_hash_orig_hex, delta=1):
     :type tx_hash_orig_hex: str, 0x-hex
     :param delta: Amount
     """
+    chain_spec = ChainSpec.from_dict(chainspec_dict)
+    rpc = RPCConnection.connect(chain_spec, 'default')
+    rpc_signer = RPCConnection.connect(chain_spec, 'signer')
     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(strip_0x(tx_brief['signed_tx'][2:]))
+    session = BaseTask.session_func()
+    tx_brief = get_tx(chain_spec, tx_hash_orig_hex, session=session)
+    tx_raw = bytes.fromhex(strip_0x(tx_brief['signed_tx']))
     tx = unpack(tx_raw, chain_spec)
     nonce = tx_brief['nonce']
     address = tx['from']
 
-    logg.debug('shifting nonce {} position(s) for address {}, offset {}'.format(delta, address, nonce))
+    logg.debug('shifting nonce {} position(s) for address {}, offset {}, hash {}'.format(delta, address, nonce, tx['hash']))
 
-    lock_queue(None, chain_str, address)
-    lock_send(None, chain_str, address)
+    lock_queue(None, chain_spec.asdict(), address=address)
+    lock_send(None, chain_spec.asdict(), address=address)
+
+    set_cancel(chain_spec, strip_0x(tx['hash']), manual=True, session=session)
 
-    session = SessionBase.create_session()
     q = session.query(Otx)
     q = q.join(TxCache)
     q = q.filter(TxCache.sender==address)
@@ -69,49 +81,57 @@ def shift_nonce(self, chain_str, tx_hash_orig_hex, delta=1):
     for otx in otxs:
         tx_raw = bytes.fromhex(strip_0x(otx.signed_tx))
         tx_new = unpack(tx_raw, chain_spec)
+        tx_new = snake_and_camel(tx_new)
 
         tx_previous_hash_hex = tx_new['hash']
         tx_previous_nonce = tx_new['nonce']
 
-        del(tx_new['hash'])
-        del(tx_new['hash_unsigned'])
+        tx_new['gas_price'] += 1
+        tx_new['gasPrice'] = tx_new['gas_price']
         tx_new['nonce'] -= delta
 
-        (tx_hash_hex, tx_signed_raw_hex) = sign_tx(tx_new, chain_str)
+        logg.debug('tx_new {}'.format(tx_new))
+
+        del(tx_new['hash'])
+        del(tx_new['hash_unsigned'])
+        del(tx_new['hashUnsigned'])
+
+        gas_oracle = OverrideGasOracle(limit=tx_new['gas'], price=tx_new['gas_price'] + 1) # TODO: it should be possible to merely set this price here and if missing in the existing struct then fill it in (chainlib.eth.tx)
+        c = TxFactory(chain_spec, signer=rpc_signer, gas_oracle=gas_oracle)
+        (tx_hash_hex, tx_signed_raw_hex) = c.build_raw(tx_new)
         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,
-                )
+            tx_new['nonce'],
+            tx_hash_hex,
+            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)
+        set_cancel(chain_spec, strip_0x(tx_previous_hash_hex), manual=True, session=session)
 
-        TxCache.clone(tx_previous_hash_hex, tx_hash_hex)
+        TxCache.clone(tx_previous_hash_hex, tx_hash_hex, session=session)
 
         tx_hashes.append(tx_hash_hex)
         txs.append(tx_signed_raw_hex)
+        session.commit()
 
     session.close()
 
-    s = create_check_gas_and_send_task(
+    s = create_check_gas_task(
          txs, 
-         chain_str,
+         chain_spec,
          tx_new['from'],
-         tx_new['gas'],
-         tx_hashes, 
-         queue,
+         gas=tx_new['gas'],
+         tx_hashes_hex=tx_hashes, 
+         queue=queue,
         )
 
     s_unlock_send = celery.signature(
         'cic_eth.admin.ctrl.unlock_send',
         [
-            chain_str,
+            chain_spec.asdict(),
             tx_new['from'],
             ],
         queue=queue,
@@ -119,7 +139,7 @@ def shift_nonce(self, chain_str, tx_hash_orig_hex, delta=1):
     s_unlock_direct = celery.signature(
         'cic_eth.admin.ctrl.unlock_queue',
         [
-            chain_str,
+            chain_spec.asdict(),
             tx_new['from'],
             ],
         queue=queue,

apps/cic-eth/cic_eth/admin/token.py

@@ -16,4 +16,6 @@ def default_token(self):
     return {
             'symbol': self.default_token_symbol,
             'address': self.default_token_address,
+            'name': self.default_token_name,
+            'decimals': self.default_token_decimals,
             }

apps/cic-eth/cic_eth/api/__init__.py

@@ -5,4 +5,3 @@
 """
 
 from .api_task import Api
-from .api_admin import AdminApi

apps/cic-eth/cic_eth/api/admin.py

@@ -8,6 +8,7 @@ from chainlib.eth.constant import (
         ZERO_ADDRESS,
         )
 from cic_eth_registry import CICRegistry
+from cic_eth_registry.erc20 import ERC20Token
 from cic_eth_registry.error import UnknownContractError
 from chainlib.eth.address import to_checksum_address
 from chainlib.eth.contract import code
@@ -30,13 +31,14 @@ from chainqueue.db.enum import (
         status_str,
     )
 from chainqueue.error import TxStateChangeError
+from chainqueue.sql.query import get_tx
+from eth_erc20 import ERC20
 
 # local imports
 from cic_eth.db.models.base import SessionBase
 from cic_eth.db.models.role import AccountRole
 from cic_eth.db.models.nonce import Nonce
 from cic_eth.error import InitializationError
-from cic_eth.queue.query import get_tx
 
 app = celery.current_app
 
@@ -188,6 +190,7 @@ class AdminApi:
         s_manual = celery.signature(
             'cic_eth.queue.state.set_manual',
             [
+                chain_spec.asdict(),
                 tx_hash_hex,
                 ],
             queue=self.queue,
@@ -206,8 +209,9 @@ class AdminApi:
             s.link(s_gas)
 
         return s_manual.apply_async()
-                        
-    def check_nonce(self, address):
+                    
+
+    def check_nonce(self, chain_spec, address):
         s = celery.signature(
                 'cic_eth.queue.query.get_account_tx',
                 [
@@ -228,13 +232,12 @@ class AdminApi:
             s_get_tx = celery.signature(
                     'cic_eth.queue.query.get_tx',
                     [
-                    chain_spec.asdict(),
+                        chain_spec.asdict(),
                         k,
                         ],
                     queue=self.queue,
                     )
             tx = s_get_tx.apply_async().get()
-            #tx = get_tx(k)
             logg.debug('checking nonce {} (previous {})'.format(tx['nonce'], last_nonce))
             nonce_otx = tx['nonce']
             if not is_alive(tx['status']) and tx['status'] & local_fail > 0:
@@ -242,7 +245,9 @@ class AdminApi:
                 blocking_tx = k
                 blocking_nonce = nonce_otx
             elif nonce_otx - last_nonce > 1:
-                logg.error('nonce gap; {} followed {} for account {}'.format(nonce_otx, last_nonce, tx['from']))
+                logg.debug('tx {}'.format(tx))
+                tx_obj = unpack(bytes.fromhex(strip_0x(tx['signed_tx'])), chain_spec)
+                logg.error('nonce gap; {} followed {} for account {}'.format(nonce_otx, last_nonce, tx_obj['from']))
                 blocking_tx = k
                 blocking_nonce = nonce_otx
                 break
@@ -256,12 +261,13 @@ class AdminApi:
                 'blocking': blocking_nonce,
             },
             'tx': {
-                'blocking': blocking_tx,
-                }
+                'blocking': add_0x(blocking_tx),
             }
+        }
 
 
-    def fix_nonce(self, address, nonce, chain_spec):
+    # TODO: is risky since it does not validate that there is actually a nonce problem?
+    def fix_nonce(self, chain_spec, address, nonce):
         s = celery.signature(
                 'cic_eth.queue.query.get_account_tx',
                 [
@@ -275,15 +281,17 @@ class AdminApi:
         txs = s.apply_async().get()
 
         tx_hash_hex = None
+        session = SessionBase.create_session()
         for k in txs.keys():
-            tx_dict = get_tx(k)
+            tx_dict = get_tx(chain_spec, k, session=session)
             if tx_dict['nonce'] == nonce:
                 tx_hash_hex = k
+        session.close()
 
         s_nonce = celery.signature(
                 'cic_eth.admin.nonce.shift_nonce',
                 [
-                    self.rpc.chain_spec.asdict(),
+                    chain_spec.asdict(),
                     tx_hash_hex, 
                 ],
                 queue=self.queue
@@ -388,12 +396,13 @@ class AdminApi:
     
         t = s.apply_async()
         tx = t.get()
-  
+
         source_token = None
         if tx['source_token'] != ZERO_ADDRESS:
+            source_token_declaration = None
             if registry != None:
                 try:
-                    source_token = registry.by_address(tx['source_token'])
+                    source_token_declaration = registry.by_address(tx['source_token'], sender_address=self.call_address)
                 except UnknownContractError:
                     logg.warning('unknown source token contract {} (direct)'.format(tx['source_token']))
             else:
@@ -406,16 +415,21 @@ class AdminApi:
                         queue=self.queue
                         )
                 t = s.apply_async()
-                source_token = t.get()
-                if source_token == None:
-                    logg.warning('unknown source token contract {} (task pool)'.format(tx['source_token']))
+                source_token_declaration = t.get()
+
+            if source_token_declaration != None:
+                logg.warning('found declarator record for source token {} but not checking validity'.format(tx['source_token']))
+                source_token = ERC20Token(chain_spec, self.rpc, tx['source_token'])
+                logg.debug('source token set tup {}'.format(source_token))
+
 
 
         destination_token = None
         if tx['destination_token'] != ZERO_ADDRESS:
+            destination_token_declaration = None
             if registry != None:
                 try:
-                    destination_token = registry.by_address(tx['destination_token'])
+                    destination_token_declaration = registry.by_address(tx['destination_token'], sender_address=self.call_address)
                 except UnknownContractError:
                     logg.warning('unknown destination token contract {}'.format(tx['destination_token']))
             else:
@@ -428,10 +442,10 @@ class AdminApi:
                         queue=self.queue
                         )
                 t = s.apply_async()
-                destination_token = t.get()
-                if destination_token == None:
-                    logg.warning('unknown destination token contract {} (task pool)'.format(tx['destination_token']))
-
+                destination_token_declaration = t.get()
+            if destination_token_declaration != None:
+                logg.warning('found declarator record for destination token {} but not checking validity'.format(tx['destination_token']))
+                destination_token = ERC20Token(chain_spec, self.rpc, tx['destination_token'])
 
         tx['sender_description'] = 'Custodial account'
         tx['recipient_description'] = 'Custodial account'
@@ -543,13 +557,19 @@ class AdminApi:
                 if role != None:
                     tx['recipient_description'] = role
 
+        erc20_c = ERC20(chain_spec)
         if source_token != None:
-            tx['source_token_symbol'] = source_token.symbol()
-            tx['sender_token_balance'] = source_token.function('balanceOf')(tx['sender']).call()
+            tx['source_token_symbol'] = source_token.symbol
+            o = erc20_c.balance_of(tx['source_token'], tx['sender'], sender_address=self.call_address)
+            r = self.rpc.do(o)
+            tx['sender_token_balance'] = erc20_c.parse_balance(r)
 
         if destination_token != None:
-            tx['destination_token_symbol'] = destination_token.symbol()
-            tx['recipient_token_balance'] = source_token.function('balanceOf')(tx['recipient']).call()
+            tx['destination_token_symbol'] = destination_token.symbol
+            o = erc20_c.balance_of(tx['destination_token'], tx['recipient'], sender_address=self.call_address)
+            r = self.rpc.do(o)
+            tx['recipient_token_balance'] = erc20_c.parse_balance(r)
+            #tx['recipient_token_balance'] = destination_token.function('balanceOf')(tx['recipient']).call()
 
         # TODO: this can mean either not subitted or culled, need to check other txs with same nonce to determine which
         tx['network_status'] = 'Not in node' 

apps/cic-eth/cic_eth/api/api_task.py

@@ -8,59 +8,19 @@ import logging
 
 # external imports 
 import celery
-from cic_eth_registry import CICRegistry
 from chainlib.chain import ChainSpec
 
 # local imports
-from cic_eth.db.enum import LockEnum
+from cic_eth.api.base import ApiBase
+from cic_eth.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.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.debug('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,
-                    )       
-
+class Api(ApiBase):
+    
 
     def default_token(self):
         s_token = celery.signature(
@@ -74,29 +34,156 @@ class Api:
         return s_token.apply_async()
 
 
-    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.
+#    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
+#        """
+#        raise NotImplementedError('out of service until new DEX migration is done')
+#        s_check = celery.signature(
+#                'cic_eth.admin.ctrl.check_lock',
+#                [
+#                    [from_token_symbol, to_token_symbol],
+#                    self.chain_spec.asdict(),
+#                    LockEnum.QUEUE,
+#                    from_address,
+#                    ],
+#                queue=self.queue,
+#                )
+#        s_nonce = celery.signature(
+#                'cic_eth.eth.nonce.reserve_nonce',
+#                [
+#                    self.chain_spec.asdict(),
+#                    ],
+#                queue=self.queue,
+#                )
+#        s_tokens = celery.signature(
+#                'cic_eth.eth.erc20.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_spec.asdict(),
+#                    ],
+#                queue=self.queue,
+#                )
+#        s_nonce.link(s_tokens)
+#        s_check.link(s_nonce)
+#        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
+#        """
+#        raise NotImplementedError('out of service until new DEX migration is done')
+#        s_check = celery.signature(
+#                'cic_eth.admin.ctrl.check_lock',
+#                [
+#                    [from_token_symbol, to_token_symbol],
+#                    self.chain_spec.asdict(),
+#                    LockEnum.QUEUE,
+#                    from_address,
+#                    ],
+#                queue=self.queue,
+#                )
+#        s_nonce = celery.signature(
+#                'cic_eth.eth.nonce.reserve_nonce',
+#                [
+#                    self.chain_spec.asdict(),
+#                    ],
+#                queue=self.queue,
+#                )
+#        s_tokens = celery.signature(
+#                'cic_eth.eth.erc20.resolve_tokens_by_symbol',
+#                [
+#                    self.chain_spec.asdict(),
+#                    ],
+#                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_spec.asdict(),
+#                    ],
+#                queue=self.queue,
+#                )
+#        s_nonce.link(s_tokens)
+#        s_check.link(s_nonce)
+#        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_from(self, from_address, to_address, value, token_symbol, spender_address):
+        """Executes a chain of celery tasks that performs a transfer of ERC20 tokens by one address on behalf of another address to a third party.
 
         :param from_address: Ethereum address of sender
         :type from_address: str, 0x-hex
-        :param to_address: Ethereum address of receipient
+        :param to_address: Ethereum address of recipient
         :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
+        :param value: Estimated return from conversion
+        :type  value: int
+        :param token_symbol: ERC20 token symbol of token to send
+        :type token_symbol: str
+        :param spender_address: Ethereum address of recipient
+        :type spender_address: str, 0x-hex
         :returns: uuid of root task
         :rtype: celery.Task
         """
-        raise NotImplementedError('out of service until new DEX migration is done')
         s_check = celery.signature(
                 'cic_eth.admin.ctrl.check_lock',
                 [
-                    [from_token_symbol, to_token_symbol],
+                    [token_symbol],
                     self.chain_spec.asdict(),
                     LockEnum.QUEUE,
                     from_address,
@@ -107,102 +194,51 @@ class Api:
                 'cic_eth.eth.nonce.reserve_nonce',
                 [
                     self.chain_spec.asdict(),
+                    from_address,
                     ],
                 queue=self.queue,
                 )
         s_tokens = celery.signature(
                 'cic_eth.eth.erc20.resolve_tokens_by_symbol',
                 [
-                    self.chain_str,
+                    self.chain_spec.asdict(),
                     ],
                 queue=self.queue,
                 )
-        s_convert = celery.signature(
-                'cic_eth.eth.bancor.convert_with_default_reserve',
+        s_allow = celery.signature(
+                'cic_eth.eth.erc20.check_allowance',
+                [
+                    from_address,
+                    value,
+                    self.chain_spec.asdict(),
+                    spender_address,
+                    ],
+                queue=self.queue,
+                )
+        s_transfer = celery.signature(
+                'cic_eth.eth.erc20.transfer_from',
                 [
                     from_address,
-                    target_return,
-                    minimum_return,
                     to_address,
+                    value,
                     self.chain_spec.asdict(),
+                    spender_address,
                     ],
                 queue=self.queue,
                 )
+        s_tokens.link(s_allow)
         s_nonce.link(s_tokens)
         s_check.link(s_nonce)
         if self.callback_param != None:
-            s_convert.link(self.callback_success)
-            s_tokens.link(s_convert).on_error(self.callback_error)
+            s_transfer.link(self.callback_success)
+            s_allow.link(s_transfer).on_error(self.callback_error)
         else:
-            s_tokens.link(s_convert)
+            s_allow.link(s_transfer)
 
         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
-        """
-        raise NotImplementedError('out of service until new DEX migration is done')
-        s_check = celery.signature(
-                'cic_eth.admin.ctrl.check_lock',
-                [
-                    [from_token_symbol, to_token_symbol],
-                    self.chain_spec.asdict(),
-                    LockEnum.QUEUE,
-                    from_address,
-                    ],
-                queue=self.queue,
-                )
-        s_nonce = celery.signature(
-                'cic_eth.eth.nonce.reserve_nonce',
-                [
-                    self.chain_spec.asdict(),
-                    ],
-                queue=self.queue,
-                )
-        s_tokens = celery.signature(
-                'cic_eth.eth.erc20.resolve_tokens_by_symbol',
-                [
-                    self.chain_spec.asdict(),
-                    ],
-                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_spec.asdict(),
-                    ],
-                queue=self.queue,
-                )
-        s_nonce.link(s_tokens)
-        s_check.link(s_nonce)
-        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.

apps/cic-eth/cic_eth/api/base.py

@@ -0,0 +1,52 @@
+# standard imports
+import logging
+
+# external imports
+import celery
+from chainlib.chain import ChainSpec
+
+logg = logging.getLogger(__name__)
+
+class ApiBase:
+    """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.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.debug('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,
+                    )       
+
+

apps/cic-eth/cic_eth/db/enum.py

@@ -1,158 +1 @@
-# standard imports
-import enum
-
-
-@enum.unique
-class StatusBits(enum.IntEnum):
-    """Individual bit flags that are combined to define the state and legacy of a queued transaction
-
-    """
-    QUEUED = 0x01 # transaction should be sent to network
-    IN_NETWORK = 0x08 # transaction is in network
-   
-    DEFERRED = 0x10 # an attempt to send the transaction to network has failed
-    GAS_ISSUES = 0x20 # transaction is pending sender account gas funding
-
-    LOCAL_ERROR = 0x100 # errors that originate internally from the component
-    NODE_ERROR = 0x200 # errors originating in the node (invalid RLP input...)
-    NETWORK_ERROR = 0x400 # errors that originate from the network (REVERT)
-    UNKNOWN_ERROR = 0x800 # unclassified errors (the should not occur)
-
-    FINAL = 0x1000 # transaction processing has completed
-    OBSOLETE = 0x2000 # transaction has been replaced by a different transaction with higher fee
-    MANUAL = 0x8000 # transaction processing has been manually overridden
-
-
-@enum.unique
-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 = 0
-
-    SENDFAIL = StatusBits.DEFERRED | StatusBits.LOCAL_ERROR
-    RETRY = StatusBits.QUEUED | StatusBits.DEFERRED 
-    READYSEND = StatusBits.QUEUED
-
-    OBSOLETED = StatusBits.OBSOLETE | StatusBits.IN_NETWORK
-
-    WAITFORGAS = StatusBits.GAS_ISSUES
-
-    SENT = StatusBits.IN_NETWORK
-    FUBAR = StatusBits.FINAL | StatusBits.UNKNOWN_ERROR
-    CANCELLED = StatusBits.IN_NETWORK | StatusBits.FINAL | StatusBits.OBSOLETE
-    OVERRIDDEN = StatusBits.FINAL | StatusBits.OBSOLETE | StatusBits.MANUAL
-
-    REJECTED = StatusBits.NODE_ERROR | StatusBits.FINAL
-    REVERTED = StatusBits.IN_NETWORK | StatusBits.FINAL | StatusBits.NETWORK_ERROR
-    SUCCESS = StatusBits.IN_NETWORK | StatusBits.FINAL 
-
-
-@enum.unique
-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
-    INIT=2
-    CREATE=4
-    SEND=8
-    QUEUE=16
-    QUERY=32
-    ALL=int(0xfffffffffffffffe)
-
-
-def status_str(v, bits_only=False):
-    """Render a human-readable string describing the status
-
-    If the bit field exactly matches a StatusEnum value, the StatusEnum label will be returned.
-
-    If a StatusEnum cannot be matched, the string will be postfixed with "*", unless explicitly instructed to return bit field labels only.
-
-    :param v: Status bit field
-    :type v: number
-    :param bits_only: Only render individual bit labels.
-    :type bits_only: bool
-    :returns: Status string
-    :rtype: str
-    """
-    s = ''
-    if not bits_only:
-        try:
-            s = StatusEnum(v).name
-            return s
-        except ValueError:
-            pass
-
-    if v == 0:
-        return 'NONE'
-
-    for i in range(16):
-        b = (1 << i)
-        if (b & 0xffff) & v:
-            n = StatusBits(b).name
-            if len(s) > 0:
-                s += ','
-            s += n
-    if not bits_only:
-        s += '*'
-    return s
-
-
-def all_errors():
-    """Bit mask of all error states
-
-    :returns: Error flags
-    :rtype: number
-    """
-    return StatusBits.LOCAL_ERROR | StatusBits.NODE_ERROR | StatusBits.NETWORK_ERROR | StatusBits.UNKNOWN_ERROR
-
-
-def is_error_status(v):
-    """Check if value is an error state
-
-    :param v: Status bit field
-    :type v: number
-    :returns: True if error
-    :rtype: bool
-    """
-    return bool(v & all_errors())
-
-
-def dead():
-    """Bit mask defining whether a transaction is still likely to be processed on the network.
-
-    :returns: Bit mask
-    :rtype: number
-    """
-    return StatusBits.FINAL | StatusBits.OBSOLETE
-
-
-def is_alive(v):
-    """Check if transaction is still likely to be processed on the network.
-
-    The contingency of "likely" refers to the case a transaction has been obsoleted after sent to the network, but the network still confirms the obsoleted transaction. The return value of this method will not change as a result of this, BUT the state itself will (as the FINAL bit will be set).
-
-    :returns: 
-    """
-    return bool(v & dead() == 0)
+from cic_eth.enum import *

apps/cic-eth/cic_eth/db/util.py

@@ -1,8 +0,0 @@
-import math
-
-def num_serialize(n):
-    if n == 0:
-        return b'\x00'
-    binlog = math.log2(n)
-    bytelength = int(binlog / 8 + 1)
-    return n.to_bytes(bytelength, 'big')

apps/cic-eth/cic_eth/enum.py

@@ -0,0 +1,158 @@
+# standard imports
+import enum
+
+
+@enum.unique
+class StatusBits(enum.IntEnum):
+    """Individual bit flags that are combined to define the state and legacy of a queued transaction
+
+    """
+    QUEUED = 0x01 # transaction should be sent to network
+    IN_NETWORK = 0x08 # transaction is in network
+   
+    DEFERRED = 0x10 # an attempt to send the transaction to network has failed
+    GAS_ISSUES = 0x20 # transaction is pending sender account gas funding
+
+    LOCAL_ERROR = 0x100 # errors that originate internally from the component
+    NODE_ERROR = 0x200 # errors originating in the node (invalid RLP input...)
+    NETWORK_ERROR = 0x400 # errors that originate from the network (REVERT)
+    UNKNOWN_ERROR = 0x800 # unclassified errors (the should not occur)
+
+    FINAL = 0x1000 # transaction processing has completed
+    OBSOLETE = 0x2000 # transaction has been replaced by a different transaction with higher fee
+    MANUAL = 0x8000 # transaction processing has been manually overridden
+
+
+@enum.unique
+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 = 0
+
+    SENDFAIL = StatusBits.DEFERRED | StatusBits.LOCAL_ERROR
+    RETRY = StatusBits.QUEUED | StatusBits.DEFERRED 
+    READYSEND = StatusBits.QUEUED
+
+    OBSOLETED = StatusBits.OBSOLETE | StatusBits.IN_NETWORK
+
+    WAITFORGAS = StatusBits.GAS_ISSUES
+
+    SENT = StatusBits.IN_NETWORK
+    FUBAR = StatusBits.FINAL | StatusBits.UNKNOWN_ERROR
+    CANCELLED = StatusBits.IN_NETWORK | StatusBits.FINAL | StatusBits.OBSOLETE
+    OVERRIDDEN = StatusBits.FINAL | StatusBits.OBSOLETE | StatusBits.MANUAL
+
+    REJECTED = StatusBits.NODE_ERROR | StatusBits.FINAL
+    REVERTED = StatusBits.IN_NETWORK | StatusBits.FINAL | StatusBits.NETWORK_ERROR
+    SUCCESS = StatusBits.IN_NETWORK | StatusBits.FINAL 
+
+
+@enum.unique
+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
+    INIT=2
+    CREATE=4
+    SEND=8
+    QUEUE=16
+    QUERY=32
+    ALL=int(0xfffffffffffffffe)
+
+
+def status_str(v, bits_only=False):
+    """Render a human-readable string describing the status
+
+    If the bit field exactly matches a StatusEnum value, the StatusEnum label will be returned.
+
+    If a StatusEnum cannot be matched, the string will be postfixed with "*", unless explicitly instructed to return bit field labels only.
+
+    :param v: Status bit field
+    :type v: number
+    :param bits_only: Only render individual bit labels.
+    :type bits_only: bool
+    :returns: Status string
+    :rtype: str
+    """
+    s = ''
+    if not bits_only:
+        try:
+            s = StatusEnum(v).name
+            return s
+        except ValueError:
+            pass
+
+    if v == 0:
+        return 'NONE'
+
+    for i in range(16):
+        b = (1 << i)
+        if (b & 0xffff) & v:
+            n = StatusBits(b).name
+            if len(s) > 0:
+                s += ','
+            s += n
+    if not bits_only:
+        s += '*'
+    return s
+
+
+def all_errors():
+    """Bit mask of all error states
+
+    :returns: Error flags
+    :rtype: number
+    """
+    return StatusBits.LOCAL_ERROR | StatusBits.NODE_ERROR | StatusBits.NETWORK_ERROR | StatusBits.UNKNOWN_ERROR
+
+
+def is_error_status(v):
+    """Check if value is an error state
+
+    :param v: Status bit field
+    :type v: number
+    :returns: True if error
+    :rtype: bool
+    """
+    return bool(v & all_errors())
+
+
+def dead():
+    """Bit mask defining whether a transaction is still likely to be processed on the network.
+
+    :returns: Bit mask
+    :rtype: number
+    """
+    return StatusBits.FINAL | StatusBits.OBSOLETE
+
+
+def is_alive(v):
+    """Check if transaction is still likely to be processed on the network.
+
+    The contingency of "likely" refers to the case a transaction has been obsoleted after sent to the network, but the network still confirms the obsoleted transaction. The return value of this method will not change as a result of this, BUT the state itself will (as the FINAL bit will be set).
+
+    :returns: 
+    """
+    return bool(v & dead() == 0)

apps/cic-eth/cic_eth/error.py

@@ -80,3 +80,8 @@ class SignerError(SeppukuError):
 class RoleAgencyError(SeppukuError):
     """Exception raise when a role cannot perform its function. This is a critical exception
     """
+
+
+class YouAreBrokeError(Exception):
+    """Exception raised when a value transfer is attempted without access to sufficient funds
+    """

apps/cic-eth/cic_eth/eth/erc20.py

@@ -24,6 +24,7 @@ from cic_eth.error import (
         TokenCountError,
         PermanentTxError,
         OutOfGasError,
+        YouAreBrokeError,
         )
 from cic_eth.queue.tx import register_tx
 from cic_eth.eth.gas import (
@@ -71,6 +72,117 @@ def balance(tokens, holder_address, chain_spec_dict):
     return tokens
 
 
+@celery_app.task(bind=True)
+def check_allowance(self, tokens, holder_address, value, chain_spec_dict, spender_address):
+    """Best-effort verification that the allowance for a transfer from spend is sufficient.
+
+    :raises YouAreBrokeError: If allowance is insufficient
+    
+    :param tokens: Token addresses 
+    :type tokens: list of str, 0x-hex
+    :param holder_address: Token holder address
+    :type holder_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
+    :param spender_address: Address of account spending on behalf of holder
+    :type spender_address: str, 0x-hex
+    :return: Token list as passed to task
+    :rtype: dict
+    """
+    logg.debug('tokens {}'.format(tokens))
+    if len(tokens) != 1:
+        raise TokenCountError
+    t = tokens[0]
+    chain_spec = ChainSpec.from_dict(chain_spec_dict)
+
+    rpc = RPCConnection.connect(chain_spec, 'default')
+
+    caller_address = ERC20Token.caller_address 
+    c = ERC20(chain_spec)
+    o = c.allowance(t['address'], holder_address, spender_address, sender_address=caller_address)
+    r = rpc.do(o)
+    allowance = c.parse_allowance(r)
+    if allowance < value:
+        errstr = 'allowance {} insufficent to transfer {} {} by {} on behalf of {}'.format(allowance, value, t['symbol'], spender_address, holder_address)
+        logg.error(errstr)
+        raise YouAreBrokeError(errstr)
+
+    return tokens
+
+
+@celery_app.task(bind=True, base=CriticalSQLAlchemyAndSignerTask)
+def transfer_from(self, tokens, holder_address, receiver_address, value, chain_spec_dict, spender_address):
+    """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.
+
+    :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
+    :param spender_address: Address of account spending on behalf of holder
+    :type spender_address: str, 0x-hex
+    :raises TokenCountError: Either none or more then one tokens have been passed as tokens argument
+    :return: Transaction hash for tranfer operation
+    :rtype: str, 0x-hex
+    """
+    # we only allow one token, one transfer
+    logg.debug('tokens {}'.format(tokens))
+    if len(tokens) != 1:
+        raise TokenCountError
+    t = tokens[0]
+    chain_spec = ChainSpec.from_dict(chain_spec_dict)
+    queue = self.request.delivery_info.get('routing_key')
+
+    rpc = RPCConnection.connect(chain_spec, 'default')
+    rpc_signer = RPCConnection.connect(chain_spec, 'signer')
+
+    session = self.create_session()
+    nonce_oracle = CustodialTaskNonceOracle(holder_address, self.request.root_id, session=session)
+    gas_oracle = self.create_gas_oracle(rpc, MaxGasOracle.gas)
+    c = ERC20(chain_spec, signer=rpc_signer, gas_oracle=gas_oracle, nonce_oracle=nonce_oracle)
+    try:
+        (tx_hash_hex, tx_signed_raw_hex) = c.transfer_from(t['address'], spender_address, holder_address, receiver_address, value, tx_format=TxFormat.RLP_SIGNED)
+    except FileNotFoundError as e:
+        raise SignerError(e)
+    except ConnectionError as e:
+        raise SignerError(e)
+    
+
+    rpc_signer.disconnect()
+    rpc.disconnect()
+
+    cache_task = 'cic_eth.eth.erc20.cache_transfer_from_data'
+
+    register_tx(tx_hash_hex, tx_signed_raw_hex, chain_spec, queue, cache_task=cache_task, session=session)
+    session.commit()
+    session.close()
+    
+    gas_pair = gas_oracle.get_gas(tx_signed_raw_hex)
+    gas_budget = gas_pair[0] * gas_pair[1]
+    logg.debug('transfer tx {} {} {}'.format(tx_hash_hex, queue, gas_budget))
+
+    s = create_check_gas_task(
+             [tx_signed_raw_hex],
+             chain_spec,
+             holder_address,
+             gas_budget,
+             [tx_hash_hex],
+             queue,
+            )
+    s.apply_async()
+    return tx_hash_hex
+
+
+
 @celery_app.task(bind=True, base=CriticalSQLAlchemyAndSignerTask)
 def transfer(self, tokens, holder_address, receiver_address, value, chain_spec_dict):
     """Transfer ERC20 tokens between addresses
@@ -232,6 +344,7 @@ def resolve_tokens_by_symbol(self, token_symbols, chain_spec_dict):
         logg.debug('token {}'.format(token_address))
         tokens.append({
             'address': token_address,
+            'symbol': token_symbol,
             'converters': [],
             })
     rpc.disconnect()
@@ -279,6 +392,48 @@ def cache_transfer_data(
     return (tx_hash_hex, cache_id)
 
 
+@celery_app.task(base=CriticalSQLAlchemyTask)
+def cache_transfer_from_data(
+    tx_hash_hex,
+    tx_signed_raw_hex,
+    chain_spec_dict,
+        ):
+    """Helper function for otx_cache_transfer_from
+
+    :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
+    """
+    chain_spec = ChainSpec.from_dict(chain_spec_dict)
+    tx_signed_raw_bytes = bytes.fromhex(strip_0x(tx_signed_raw_hex))
+    tx = unpack(tx_signed_raw_bytes, chain_spec)
+
+    tx_data = ERC20.parse_transfer_from_request(tx['data'])
+    spender_address = tx_data[0]
+    recipient_address = tx_data[1]
+    token_value = tx_data[2]
+
+    session = SessionBase.create_session()
+    tx_cache = TxCache(
+        tx_hash_hex,
+        tx['from'],
+        recipient_address,
+        tx['to'],
+        tx['to'],
+        token_value,
+        token_value,
+        session=session,
+            )
+    session.add(tx_cache)
+    session.commit()
+    cache_id = tx_cache.id
+    session.close()
+    return (tx_hash_hex, cache_id)
+
+
 @celery_app.task(base=CriticalSQLAlchemyTask)
 def cache_approve_data(
     tx_hash_hex,

apps/cic-eth/cic_eth/eth/gas.py

@@ -57,10 +57,12 @@ celery_app = celery.current_app
 logg = logging.getLogger()
 
 
+MAXIMUM_FEE_UNITS = 8000000
+
 class MaxGasOracle:
 
     def gas(code=None):
-        return 8000000
+        return MAXIMUM_FEE_UNITS
 
 
 def create_check_gas_task(tx_signed_raws_hex, chain_spec, holder_address, gas=None, tx_hashes_hex=None, queue=None):
@@ -150,7 +152,7 @@ def cache_gas_data(
 
 
 @celery_app.task(bind=True, throws=(OutOfGasError), base=CriticalSQLAlchemyAndWeb3Task)
-def check_gas(self, tx_hashes, chain_spec_dict, txs=[], address=None, gas_required=None):
+def check_gas(self, tx_hashes, chain_spec_dict, txs=[], address=None, gas_required=MAXIMUM_FEE_UNITS):
     """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.
@@ -170,24 +172,30 @@ def check_gas(self, tx_hashes, chain_spec_dict, txs=[], address=None, gas_requir
     :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'])
-            if address == None:
-                address = o['address']
+    chain_spec = ChainSpec.from_dict(chain_spec_dict)
+    logg.debug('txs {} tx_hashes {}'.format(txs, tx_hashes))
+
+    addresspass = None
+    if len(txs) == 0:
+        addresspass = []
+        for i in range(len(tx_hashes)):
+            o = get_tx(chain_spec_dict, tx_hashes[i])
+            txs.append(o['signed_tx'])
+            logg.debug('sender {}'.format(o))
+            tx = unpack(bytes.fromhex(strip_0x(o['signed_tx'])), chain_spec)
+            if address == None:
+                address = tx['from']
+            elif address != tx['from']:
+                raise ValueError('txs passed to check gas must all have same sender; had {} got {}'.format(address, tx['from']))
+            addresspass.append(address)
 
-    #if not web3.Web3.isChecksumAddress(address):
     if not is_checksum_address(address):
         raise ValueError('invalid address {}'.format(address))
 
-    chain_spec = ChainSpec.from_dict(chain_spec_dict)
-
     queue = self.request.delivery_info.get('routing_key')
 
     conn = RPCConnection.connect(chain_spec)
 
-    # TODO: it should not be necessary to pass address explicitly, if not passed should be derived from the tx
     gas_balance = 0
     try:
         o = balance(address)
@@ -198,6 +206,9 @@ def check_gas(self, tx_hashes, chain_spec_dict, txs=[], address=None, gas_requir
         conn.disconnect()
         raise EthError('gas_balance call for {}: {}'.format(address, e))
 
+    if gas_required == None:
+        gas_required = MAXIMUM_FEE_UNITS
+
     logg.debug('address {} has gas {} needs {}'.format(address, gas_balance, gas_required))
     session = SessionBase.create_session()
     gas_provider = AccountRole.get_address('GAS_GIFTER', session=session)
@@ -268,7 +279,8 @@ def check_gas(self, tx_hashes, chain_spec_dict, txs=[], address=None, gas_requir
             queue=queue,
             )
         ready_tasks.append(s)
-    celery.group(ready_tasks)()
+    t = celery.group(ready_tasks)()
+    logg.debug('group {}'.format(t))
 
     return txs
 

apps/cic-eth/cic_eth/eth/tx.py

@@ -21,6 +21,7 @@ from chainqueue.db.models.tx import Otx
 from chainqueue.db.models.tx import TxCache
 from chainqueue.db.enum import StatusBits
 from chainqueue.error import NotLocalTxError
+from potaahto.symbols import snake_and_camel
 
 # local imports
 from cic_eth.db import SessionBase
@@ -58,6 +59,9 @@ def hashes_to_txs(self, tx_hashes):
     if len(tx_hashes) == 0:
         raise ValueError('no transaction to send')
 
+    for i in range(len(tx_hashes)):
+        tx_hashes[i] = strip_0x(tx_hashes[i])
+
     queue = self.request.delivery_info['routing_key']
 
     session = SessionBase.create_session()
@@ -148,7 +152,7 @@ def send(self, txs, chain_spec_dict):
 
 @celery_app.task(bind=True, throws=(NotFoundEthException,), base=CriticalWeb3Task)
 def sync_tx(self, tx_hash_hex, chain_spec_dict):
-    """Force update of network status of a simgle transaction
+    """Force update of network status of a single transaction
 
     :param tx_hash_hex: Transaction hash
     :type tx_hash_hex: str, 0x-hex
@@ -173,12 +177,14 @@ def sync_tx(self, tx_hash_hex, chain_spec_dict):
 
     # TODO: apply receipt in tx object to validate and normalize input
     if rcpt != None:
+        rcpt = snake_and_camel(rcpt)
         success = rcpt['status'] == 1
-        logg.debug('sync tx {} mined block {} success {}'.format(tx_hash_hex, rcpt['blockNumber'], success))
+        logg.debug('sync tx {} mined block {} tx index {} success {}'.format(tx_hash_hex, rcpt['blockNumber'], rcpt['transactionIndex'], success))
 
         s = celery.signature(
             'cic_eth.queue.state.set_final',
             [
+                chain_spec_dict,
                 tx_hash_hex,
                 rcpt['blockNumber'],
                 rcpt['transactionIndex'],
@@ -186,12 +192,14 @@ def sync_tx(self, tx_hash_hex, chain_spec_dict):
                 ],
                 queue=queue,
             )
+    # TODO: it's not entirely clear how we can reliable determine that its in mempool without explicitly checking
     else:
         logg.debug('sync tx {} mempool'.format(tx_hash_hex))
 
         s = celery.signature(
             'cic_eth.queue.state.set_sent',
             [
+                chain_spec_dict,
                 tx_hash_hex,
                 ],
                 queue=queue,

apps/cic-eth/cic_eth/ext/tx.py

@@ -19,7 +19,7 @@ from cic_eth_registry import CICRegistry
 from cic_eth_registry.erc20 import ERC20Token
 from chainqueue.db.models.otx import Otx
 from chainqueue.db.enum import StatusEnum
-from chainqueue.query import get_tx_cache
+from chainqueue.sql.query import get_tx_cache
 from eth_erc20 import ERC20
 
 # local imports

apps/cic-eth/cic_eth/pytest/fixtures_celery.py

@@ -22,7 +22,6 @@ def init_celery_tasks(
 @pytest.fixture(scope='session')
 def celery_includes():
     return [
-#        'cic_eth.eth.bancor',
         'cic_eth.eth.erc20',
         'cic_eth.eth.tx',
         'cic_eth.ext.tx',
@@ -38,7 +37,7 @@ def celery_includes():
         'cic_eth.eth.account',
         'cic_eth.callbacks.noop',
         'cic_eth.callbacks.http',
-        'tests.mock.filter',
+        'cic_eth.pytest.mock.filter',
     ]
 
 
@@ -47,8 +46,8 @@ 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))
+    logg.debug('celery broker session queue {} processed {}'.format(bq, bp))
+    logg.debug('celery backend session store {}'.format(rq))
     yield {
         'broker_url': 'filesystem://',
         'broker_transport_options': {
@@ -58,12 +57,11 @@ def celery_config():
             },
         'result_backend': 'file://{}'.format(rq),
             }
-    logg.debug('cleaning up celery filesystem backend files {} {} {}'.format(bq, bp, rq))
+    logg.debug('cleaning up celery session 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 {

apps/cic-eth/cic_eth/pytest/fixtures_config.py

@@ -2,18 +2,20 @@
 import os
 import logging
 
-# third-party imports
+# external 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__)
+root_dir = os.path.dirname(os.path.dirname(script_dir))
+logg = logging.getLogger(__name__)
 
 
 @pytest.fixture(scope='session')
 def load_config():
-    config_dir = os.path.join(root_dir, 'config/test')
+    config_dir = os.environ.get('CONFINI_DIR')
+    if config_dir == None:
+        config_dir = os.path.join(root_dir, 'config/test')
     conf = confini.Config(config_dir, 'CICTEST')
     conf.process()
     logg.debug('config {}'.format(conf))

apps/cic-eth/cic_eth/pytest/fixtures_contract.py

@@ -0,0 +1,77 @@
+# standard imports
+import os
+
+# external imports
+import pytest
+from chainlib.eth.contract import (
+        ABIContractEncoder,
+        ABIContractType,
+        )
+from chainlib.eth.nonce import RPCNonceOracle
+from chainlib.eth.gas import OverrideGasOracle
+from chainlib.eth.block import (
+        block_latest,
+        block_by_number,
+        Block,
+        )
+from chainlib.eth.tx import (
+        receipt,
+        TxFactory,
+        TxFormat,
+        unpack,
+        Tx,
+        )
+from hexathon import strip_0x
+
+script_dir = os.path.dirname(os.path.realpath(__file__))
+root_dir = os.path.dirname(script_dir)
+
+
+@pytest.fixture(scope='function')
+def bogus_tx_block(
+    default_chain_spec,
+    eth_rpc,
+    eth_signer,
+    contract_roles,
+        ):
+
+    nonce_oracle = RPCNonceOracle(contract_roles['CONTRACT_DEPLOYER'], conn=eth_rpc)
+    gas_oracle = OverrideGasOracle(limit=2000000, conn=eth_rpc)
+
+    f = open(os.path.join(script_dir, 'testdata', 'Bogus.bin'), 'r')
+    bytecode = f.read()
+    f.close()
+
+    c = TxFactory(default_chain_spec, signer=eth_signer, gas_oracle=gas_oracle, nonce_oracle=nonce_oracle)
+    tx = c.template(contract_roles['CONTRACT_DEPLOYER'], None, use_nonce=True)
+    tx = c.set_code(tx, bytecode)
+    (tx_hash_hex, o) = c.build(tx)
+
+    r = eth_rpc.do(o)
+
+    o = receipt(tx_hash_hex)
+    r = eth_rpc.do(o)
+
+    contract_address = r['contract_address']
+
+    enc = ABIContractEncoder()
+    enc.method('poke')
+    data = enc.get()
+    tx = c.template(contract_roles['CONTRACT_DEPLOYER'], contract_address, use_nonce=True)
+    tx = c.set_code(tx, data)
+    (tx_hash_hex, o) = c.finalize(tx, TxFormat.JSONRPC)
+    r = eth_rpc.do(o)
+    tx_signed_raw_hex = strip_0x(o['params'][0])
+
+    o = block_latest()
+    r = eth_rpc.do(o)
+    o = block_by_number(r, include_tx=False)
+    r = eth_rpc.do(o)
+    block = Block(r)
+    block.txs = [tx_hash_hex]
+
+    tx_signed_raw_bytes = bytes.fromhex(strip_0x(tx_signed_raw_hex))
+    tx_src = unpack(tx_signed_raw_bytes, default_chain_spec)
+    tx = Tx(tx_src, block=block)
+
+    return (block, tx)

apps/cic-eth/cic_eth/pytest/fixtures_database.py

@@ -37,7 +37,8 @@ def init_database(
         database_engine,
         ):
 
-    rootdir = os.path.dirname(os.path.dirname(__file__))
+    script_dir = os.path.dirname(os.path.realpath(__file__))
+    rootdir = os.path.dirname(os.path.dirname(script_dir))
     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):

apps/cic-eth/cic_eth/pytest/fixtures_token.py

@@ -0,0 +1,19 @@
+# external imports
+import pytest
+from eth_erc20 import ERC20
+
+# TODO: missing dep fixture includes
+
+
+@pytest.fixture(scope='function')
+def foo_token_symbol(
+    default_chain_spec,
+    foo_token,
+    eth_rpc,
+    contract_roles,
+    ):
+    
+    c = ERC20(default_chain_spec)
+    o = c.symbol(foo_token, sender_address=contract_roles['CONTRACT_DEPLOYER'])
+    r = eth_rpc.do(o)
+    return c.parse_symbol(r)

apps/cic-eth/cic_eth/pytest/testdata/Bogus.bin

@@ -0,0 +1 @@
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

apps/cic-eth/cic_eth/pytest/testdata/Bogus.sol

@@ -0,0 +1,10 @@
+pragma solidity ^0.8.0;
+
+contract Bogus {
+
+	uint256 public a = 0;
+
+	function poke() public {
+		a++;
+	}
+}

apps/cic-eth/cic_eth/queue/query.py

@@ -5,7 +5,7 @@ import datetime
 import celery
 from chainlib.chain import ChainSpec
 from chainlib.eth.tx import unpack
-import chainqueue.query
+import chainqueue.sql.query
 from chainqueue.db.enum import (
         StatusEnum,
         is_alive,
@@ -28,7 +28,7 @@ celery_app = celery.current_app
 def get_tx_cache(chain_spec_dict, tx_hash):
     chain_spec = ChainSpec.from_dict(chain_spec_dict)
     session = SessionBase.create_session()
-    r = chainqueue.query.get_tx_cache(chain_spec, tx_hash, session=session)
+    r = chainqueue.sql.query.get_tx_cache(chain_spec, tx_hash, session=session)
     session.close()
     return r
 
@@ -37,7 +37,7 @@ def get_tx_cache(chain_spec_dict, tx_hash):
 def get_tx(chain_spec_dict, tx_hash):
     chain_spec = ChainSpec.from_dict(chain_spec_dict)
     session = SessionBase.create_session()
-    r =  chainqueue.query.get_tx(chain_spec, tx_hash)
+    r =  chainqueue.sql.query.get_tx(chain_spec, tx_hash, session=session)
     session.close()
     return r
 
@@ -46,7 +46,7 @@ def get_tx(chain_spec_dict, tx_hash):
 def get_account_tx(chain_spec_dict, address, as_sender=True, as_recipient=True, counterpart=None):
     chain_spec = ChainSpec.from_dict(chain_spec_dict)
     session = SessionBase.create_session()
-    r = chainqueue.query.get_account_tx(chain_spec, address, as_sender=True, as_recipient=True, counterpart=None, session=session)
+    r = chainqueue.sql.query.get_account_tx(chain_spec, address, as_sender=True, as_recipient=True, counterpart=None, session=session)
     session.close()
     return r
 
@@ -55,17 +55,17 @@ def get_account_tx(chain_spec_dict, address, as_sender=True, as_recipient=True,
 def get_upcoming_tx_nolock(chain_spec_dict, status=StatusEnum.READYSEND, not_status=None, recipient=None, before=None, limit=0, session=None):
     chain_spec = ChainSpec.from_dict(chain_spec_dict)
     session = SessionBase.create_session()
-    r = chainqueue.query.get_upcoming_tx(chain_spec, status, not_status=not_status, recipient=recipient, before=before, limit=limit, session=session, decoder=unpack)
+    r = chainqueue.sql.query.get_upcoming_tx(chain_spec, status, not_status=not_status, recipient=recipient, before=before, limit=limit, session=session, decoder=unpack)
     session.close()
     return r
 
 
 def get_status_tx(chain_spec, status, not_status=None, before=None, exact=False, limit=0, session=None):
-    return chainqueue.query.get_status_tx_cache(chain_spec, status, not_status=not_status, before=before, exact=exact, limit=limit, session=session, decoder=unpack)
+    return chainqueue.sql.query.get_status_tx_cache(chain_spec, status, not_status=not_status, before=before, exact=exact, limit=limit, session=session, decoder=unpack)
 
 
 def get_paused_tx(chain_spec, status=None, sender=None, session=None, decoder=None):
-    return chainqueue.query.get_paused_tx_cache(chain_spec, status=status, sender=sender, session=session, decoder=unpack)
+    return chainqueue.sql.query.get_paused_tx_cache(chain_spec, status=status, sender=sender, session=session, decoder=unpack)
 
 
 def get_nonce_tx(chain_spec, nonce, sender):

apps/cic-eth/cic_eth/queue/state.py

@@ -1,6 +1,6 @@
 # external imports
 from chainlib.chain import ChainSpec
-import chainqueue.state
+import chainqueue.sql.state
 
 # local imports
 import celery
@@ -14,7 +14,7 @@ celery_app = celery.current_app
 def set_sent(chain_spec_dict, tx_hash, fail=False):
     chain_spec = ChainSpec.from_dict(chain_spec_dict)
     session = SessionBase.create_session()
-    r = chainqueue.state.set_sent(chain_spec, tx_hash, fail, session=session)
+    r = chainqueue.sql.state.set_sent(chain_spec, tx_hash, fail, session=session)
     session.close()
     return r
 
@@ -23,7 +23,7 @@ def set_sent(chain_spec_dict, tx_hash, fail=False):
 def set_final(chain_spec_dict, tx_hash, block=None, tx_index=None, fail=False):
     chain_spec = ChainSpec.from_dict(chain_spec_dict)
     session = SessionBase.create_session()
-    r = chainqueue.state.set_final(chain_spec, tx_hash, block=block, tx_index=tx_index, fail=fail, session=session)
+    r = chainqueue.sql.state.set_final(chain_spec, tx_hash, block=block, tx_index=tx_index, fail=fail, session=session)
     session.close()
     return r
 
@@ -32,7 +32,7 @@ def set_final(chain_spec_dict, tx_hash, block=None, tx_index=None, fail=False):
 def set_cancel(chain_spec_dict, tx_hash, manual=False):
     chain_spec = ChainSpec.from_dict(chain_spec_dict)
     session = SessionBase.create_session()
-    r = chainqueue.state.set_cancel(chain_spec, tx_hash, manual, session=session)
+    r = chainqueue.sql.state.set_cancel(chain_spec, tx_hash, manual, session=session)
     session.close()
     return r
 
@@ -41,7 +41,7 @@ def set_cancel(chain_spec_dict, tx_hash, manual=False):
 def set_rejected(chain_spec_dict, tx_hash):
     chain_spec = ChainSpec.from_dict(chain_spec_dict)
     session = SessionBase.create_session()
-    r = chainqueue.state.set_rejected(chain_spec, tx_hash, session=session)
+    r = chainqueue.sql.state.set_rejected(chain_spec, tx_hash, session=session)
     session.close()
     return r
 
@@ -50,7 +50,7 @@ def set_rejected(chain_spec_dict, tx_hash):
 def set_fubar(chain_spec_dict, tx_hash):
     chain_spec = ChainSpec.from_dict(chain_spec_dict)
     session = SessionBase.create_session()
-    r = chainqueue.state.set_fubar(chain_spec, tx_hash, session=session)
+    r = chainqueue.sql.state.set_fubar(chain_spec, tx_hash, session=session)
     session.close()
     return r
 
@@ -59,7 +59,7 @@ def set_fubar(chain_spec_dict, tx_hash):
 def set_manual(chain_spec_dict, tx_hash):
     chain_spec = ChainSpec.from_dict(chain_spec_dict)
     session = SessionBase.create_session()
-    r = chainqueue.state.set_manual(chain_spec, tx_hash, session=session)
+    r = chainqueue.sql.state.set_manual(chain_spec, tx_hash, session=session)
     session.close()
     return r
 
@@ -68,7 +68,7 @@ def set_manual(chain_spec_dict, tx_hash):
 def set_ready(chain_spec_dict, tx_hash):
     chain_spec = ChainSpec.from_dict(chain_spec_dict)
     session = SessionBase.create_session()
-    r = chainqueue.state.set_ready(chain_spec, tx_hash, session=session)
+    r = chainqueue.sql.state.set_ready(chain_spec, tx_hash, session=session)
     session.close()
     return r
 
@@ -77,7 +77,7 @@ def set_ready(chain_spec_dict, tx_hash):
 def set_reserved(chain_spec_dict, tx_hash):
     chain_spec = ChainSpec.from_dict(chain_spec_dict)
     session = SessionBase.create_session()
-    r = chainqueue.state.set_reserved(chain_spec, tx_hash, session=session)
+    r = chainqueue.sql.state.set_reserved(chain_spec, tx_hash, session=session)
     session.close()
     return r
 
@@ -86,7 +86,7 @@ def set_reserved(chain_spec_dict, tx_hash):
 def set_waitforgas(chain_spec_dict, tx_hash):
     chain_spec = ChainSpec.from_dict(chain_spec_dict)
     session = SessionBase.create_session()
-    r = chainqueue.state.set_waitforgas(chain_spec, tx_hash, session=session)
+    r = chainqueue.sql.state.set_waitforgas(chain_spec, tx_hash, session=session)
     session.close()
     return r
     
@@ -95,7 +95,7 @@ def set_waitforgas(chain_spec_dict, tx_hash):
 def get_state_log(chain_spec_dict, tx_hash):
     chain_spec = ChainSpec.from_dict(chain_spec_dict)
     session = SessionBase.create_session()
-    r = chainqueue.state.get_state_log(chain_spec, tx_hash, session=session)
+    r = chainqueue.sql.state.get_state_log(chain_spec, tx_hash, session=session)
     session.close()
     return r
 
@@ -104,6 +104,6 @@ def get_state_log(chain_spec_dict, tx_hash):
 def obsolete(chain_spec_dict, tx_hash, final):
     chain_spec = ChainSpec.from_dict(chain_spec_dict)
     session = SessionBase.create_session()
-    r = chainqueue.state.obsolete_by_cache(chain_spec, tx_hash, final, session=session)
+    r = chainqueue.sql.state.obsolete_by_cache(chain_spec, tx_hash, final, session=session)
     session.close()
     return r

apps/cic-eth/cic_eth/queue/tx.py

@@ -15,14 +15,14 @@ from sqlalchemy import tuple_
 from sqlalchemy import func
 from chainlib.chain import ChainSpec
 from chainlib.eth.tx import unpack
-import chainqueue.state
+import chainqueue.sql.state
 from chainqueue.db.enum import (
         StatusEnum,
         StatusBits,
         is_alive,
         dead,
         )
-from chainqueue.tx import create
+from chainqueue.sql.tx import create
 from chainqueue.error import NotLocalTxError
 from chainqueue.db.enum import status_str
 

apps/cic-eth/cic_eth/registry.py

@@ -5,29 +5,30 @@ import logging
 from cic_eth_registry import CICRegistry
 from cic_eth_registry.lookup.declarator import AddressDeclaratorLookup
 from cic_eth_registry.lookup.tokenindex import TokenIndexLookup
+from chainlib.eth.constant import ZERO_ADDRESS
 
 logg = logging.getLogger()
 
 
-def connect_token_registry(rpc, chain_spec):
+def connect_token_registry(rpc, chain_spec, sender_address=ZERO_ADDRESS):
     registry = CICRegistry(chain_spec, rpc)
-    token_registry_address = registry.by_name('TokenRegistry')
+    token_registry_address = registry.by_name('TokenRegistry', sender_address=sender_address)
     logg.debug('using token registry address {}'.format(token_registry_address))
     lookup = TokenIndexLookup(chain_spec, token_registry_address)
     CICRegistry.add_lookup(lookup)
 
 
-def connect_declarator(rpc, chain_spec, trusted_addresses):
+def connect_declarator(rpc, chain_spec, trusted_addresses, sender_address=ZERO_ADDRESS):
     registry = CICRegistry(chain_spec, rpc)
-    declarator_address = registry.by_name('AddressDeclarator')
+    declarator_address = registry.by_name('AddressDeclarator', sender_address=sender_address)
     logg.debug('using declarator address {}'.format(declarator_address))
     lookup = AddressDeclaratorLookup(chain_spec, declarator_address, trusted_addresses)
     CICRegistry.add_lookup(lookup)
 
 
-def connect(rpc, chain_spec, registry_address):
+def connect(rpc, chain_spec, registry_address, sender_address=ZERO_ADDRESS):
     CICRegistry.address = registry_address
     registry = CICRegistry(chain_spec, rpc)
-    registry_address = registry.by_name('ContractRegistry')
+    registry_address = registry.by_name('ContractRegistry', sender_address=sender_address)
     return registry
 

apps/cic-eth/cic_eth/runnable/ctrl.py

@@ -12,7 +12,7 @@ from chainlib.eth.constant import ZERO_ADDRESS
 from chainlib.eth.address import is_checksum_address
 
 # local imports
-from cic_eth.api import AdminApi
+from cic_eth.api.admin import AdminApi
 from cic_eth.db.enum import LockEnum
 
 logging.basicConfig(level=logging.WARNING)

apps/cic-eth/cic_eth/runnable/daemons/dispatcher.py

@@ -21,7 +21,7 @@ from chainqueue.db.enum import (
     StatusBits,
     )
 from chainqueue.error import NotLocalTxError
-from chainqueue.state import set_reserved
+from chainqueue.sql.state import set_reserved
 
 # local imports
 import cic_eth

apps/cic-eth/cic_eth/runnable/daemons/filters/callback.py

@@ -72,7 +72,9 @@ class CallbackFilter(SyncFilter):
         #transfer_data['token_address'] = tx.inputs[0]
         faucet_contract = tx.inputs[0]
 
-        o = Faucet.token(faucet_contract, sender_address=self.caller_address)
+        c = Faucet(self.chain_spec)
+
+        o = c.token(faucet_contract, sender_address=self.caller_address)
         r = conn.do(o)
         transfer_data['token_address'] = add_0x(c.parse_token(r))
 

apps/cic-eth/cic_eth/runnable/daemons/filters/gas.py

@@ -10,14 +10,15 @@ from chainlib.eth.tx import unpack
 from chainqueue.db.enum import StatusBits
 from chainqueue.db.models.tx import TxCache
 from chainqueue.db.models.otx import Otx
-from chainqueue.query import get_paused_tx_cache as get_paused_tx
+from chainqueue.sql.query import get_paused_tx_cache as get_paused_tx
 
 # local imports
 from cic_eth.db.models.base import SessionBase
 from cic_eth.eth.gas import create_check_gas_task
 from .base import SyncFilter
 
-logg = logging.getLogger().getChild(__name__)
+#logg = logging.getLogger().getChild(__name__)
+logg = logging.getLogger()
 
 
 class GasFilter(SyncFilter):
@@ -27,11 +28,11 @@ class GasFilter(SyncFilter):
         self.chain_spec = chain_spec
 
 
-    def filter(self, conn, block, tx, session):
+    def filter(self, conn, block, tx, db_session):
         if tx.value > 0:
             tx_hash_hex = add_0x(tx.hash)
             logg.debug('gas refill tx {}'.format(tx_hash_hex))
-            session = SessionBase.bind_session(session)
+            session = SessionBase.bind_session(db_session)
             q = session.query(TxCache.recipient)
             q = q.join(Otx)
             q = q.filter(Otx.tx_hash==strip_0x(tx_hash_hex))
@@ -56,7 +57,7 @@ class GasFilter(SyncFilter):
                         tx_hashes_hex=list(txs.keys()),
                         queue=self.queue,
                 )
-                s.apply_async()
+                return s.apply_async()
 
 
     def __str__(self):

apps/cic-eth/cic_eth/runnable/daemons/filters/register.py

@@ -50,7 +50,8 @@ class RegistrationFilter(SyncFilter):
                     queue=self.queue,
                     )
                 s_nonce.link(s_gift)
-                s_nonce.apply_async()
+                t = s_nonce.apply_async()
+                return t
 
 
     def __str__(self):

apps/cic-eth/cic_eth/runnable/daemons/filters/straggler.py

@@ -3,7 +3,7 @@ import logging
 
 # external imports
 import celery
-from chainqueue.state import obsolete_by_cache
+from chainqueue.sql.state import obsolete_by_cache
 
 logg = logging.getLogger()
 

apps/cic-eth/cic_eth/runnable/daemons/filters/transferauth.py

@@ -32,7 +32,7 @@ class TransferAuthFilter(SyncFilter):
         self.transfer_request_contract = registry.by_name('TransferAuthorization', sender_address=call_address)
 
 
-    def filter(self, conn, block, tx, session): #rcpt, chain_str, session=None):
+    def filter(self, conn, block, tx, db_session): #rcpt, chain_str, session=None):
 
         if tx.payload == None:
             logg.debug('no payload')
@@ -45,16 +45,17 @@ class TransferAuthFilter(SyncFilter):
             return False
 
         recipient = tx.inputs[0]
-        if recipient != self.transfer_request_contract.address():
+        #if recipient != self.transfer_request_contract.address():
+        if recipient != self.transfer_request_contract:
             logg.debug('not our transfer auth contract address {}'.format(recipient))
             return False
 
         r = TransferAuthorization.parse_create_request_request(tx.payload) 
-           
-        sender = abi_decode_single(ABIContractType.ADDRESS, r[0]) 
-        recipient = abi_decode_single(ABIContractType.ADDRESS, r[1])
-        token = abi_decode_single(ABIContractType.ADDRESS, r[2]) 
-        value = abi_decode_single(ABIContractType.UINT256, r[3])
+          
+        sender = r[0]
+        recipient = r[1]
+        token = r[2]
+        value = r[3]
 
         token_data = {
             'address': token,
@@ -64,6 +65,7 @@ class TransferAuthFilter(SyncFilter):
             'cic_eth.eth.nonce.reserve_nonce',
             [
                 [token_data],
+                self.chain_spec.asdict(), 
                 sender,
                 ],
             queue=self.queue,
@@ -80,7 +82,7 @@ class TransferAuthFilter(SyncFilter):
             )
         s_nonce.link(s_approve)
         t = s_nonce.apply_async()
-        return True
+        return t
 
 
     def __str__(self):

apps/cic-eth/cic_eth/runnable/daemons/server.py

@@ -1,136 +0,0 @@
-# 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_something = r'^/something/?'
-
-chain_spec = ChainSpec.from_chain_str(config.get('CIC_CHAIN_SPEC'))
-
-
-def process_something(session, env):
-    r = re.match(re_something, 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'))
-    
-    #return ('text/plain', 'foo'.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_something,
-            ]:
-        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]

apps/cic-eth/cic_eth/runnable/daemons/tasker.py

@@ -7,6 +7,8 @@ import tempfile
 import re
 import urllib
 import websocket
+import stat
+import importlib
 
 # external imports
 import celery
@@ -22,6 +24,7 @@ from chainlib.eth.connection import (
 from chainlib.chain import ChainSpec
 from chainqueue.db.models.otx import Otx
 from cic_eth_registry.error import UnknownContractError
+from cic_eth_registry.erc20 import ERC20Token
 import liveness.linux
 
 
@@ -36,7 +39,7 @@ from cic_eth.eth import (
 from cic_eth.admin import (
         debug,
         ctrl,
-        token
+        token,
         )
 from cic_eth.queue import (
         query,
@@ -67,6 +70,8 @@ from cic_eth.task import BaseTask
 logging.basicConfig(level=logging.WARNING)
 logg = logging.getLogger()
 
+script_dir = os.path.dirname(os.path.realpath(__file__))
+
 config_dir = os.path.join('/usr/local/etc/cic-eth')
 
 argparser = argparse.ArgumentParser()
@@ -75,10 +80,11 @@ 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('-r', type=str, help='CIC registry address')
 argparser.add_argument('--default-token-symbol', dest='default_token_symbol', type=str, help='Symbol of default token to use')
-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('--aux-all', action='store_true', help='include tasks from all submodules from the aux module path')
+argparser.add_argument('--aux', action='append', type=str, default=[], help='add single submodule from the aux module path')
 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()
@@ -109,6 +115,8 @@ if len(health_modules) != 0:
     health_modules = health_modules.split(',')
 logg.debug('health mods {}'.format(health_modules))
 
+
+
 # connect to database
 dsn = dsn_from_config(config)
 SessionBase.connect(dsn, pool_size=int(config.get('DATABASE_POOL_SIZE')), debug=config.true('DATABASE_DEBUG'))
@@ -121,20 +129,25 @@ broker = config.get('CELERY_BROKER_URL')
 if broker[:4] == 'file':
     bq = tempfile.mkdtemp()
     bp = tempfile.mkdtemp()
-    current_app.conf.update({
+    conf_update = {
             'broker_url': broker,
             'broker_transport_options': {
                 'data_folder_in': bq,
                 'data_folder_out': bq,
                 'data_folder_processed': bp,
             },
-            },
-            )
+            }
+    if config.true('CELERY_DEBUG'):
+        conf_update['result_extended'] = True
+    current_app.conf.update(conf_update)
     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,
-        })
+    conf_update = {
+            'broker_url': broker,
+            }
+    if config.true('CELERY_DEBUG'):
+        conf_update['result_extended'] = True
+    current_app.conf.update(conf_update)
 
 result = config.get('CELERY_RESULT_URL')
 if result[:4] == 'file':
@@ -162,6 +175,84 @@ Otx.tracing = config.true('TASKS_TRACE_QUEUE_STATUS')
 #    raise RuntimeError()
 liveness.linux.load(health_modules, rundir=config.get('CIC_RUN_DIR'), config=config, unit='cic-eth-tasker')
 
+rpc = RPCConnection.connect(chain_spec, 'default')
+try:
+    registry = connect_registry(rpc, chain_spec, config.get('CIC_REGISTRY_ADDRESS'))
+except UnknownContractError as e:
+    logg.exception('Registry contract connection failed for {}: {}'.format(config.get('CIC_REGISTRY_ADDRESS'), e))
+    sys.exit(1)
+logg.info('connected contract registry {}'.format(config.get('CIC_REGISTRY_ADDRESS')))
+
+trusted_addresses_src = config.get('CIC_TRUST_ADDRESS')
+if trusted_addresses_src == None:
+    logg.critical('At least one trusted address must be declared in CIC_TRUST_ADDRESS')
+    sys.exit(1)
+trusted_addresses = trusted_addresses_src.split(',')
+for address in trusted_addresses:
+    logg.info('using trusted address {}'.format(address))
+
+connect_declarator(rpc, chain_spec, trusted_addresses)
+connect_token_registry(rpc, chain_spec)
+
+# detect aux 
+# TODO: move to separate file
+#aux_dir = os.path.join(script_dir, '..', '..', 'aux')
+aux = []
+if args.aux_all:
+    if len(args.aux) > 0:
+        logg.warning('--aux-all is set so --aux will have no effect')
+    for p in sys.path:
+        logg.debug('checking for aux modules in {}'.format(p))
+        aux_dir = os.path.join(p, 'cic_eth_aux')
+        try:
+            d = os.listdir(aux_dir)
+        except FileNotFoundError:
+            logg.debug('no aux module found in {}'.format(aux_dir))
+            continue
+        for v in d:
+            if v[:1] == '.':
+                logg.debug('dotfile, skip {}'.format(v))
+                continue
+            aux_mod_path = os.path.join(aux_dir, v)
+            st = os.stat(aux_mod_path)
+            if not stat.S_ISDIR(st.st_mode):
+                logg.debug('not a dir, skip {}'.format(v))
+                continue
+            aux_mod_file = os.path.join(aux_dir, v,'__init__.py')
+            try:
+                st = os.stat(aux_mod_file)
+            except FileNotFoundError:
+                logg.debug('__init__.py not found, skip {}'.format(v))
+                continue 
+            aux.append(v)
+            logg.debug('found module {} in {}'.format(v, aux_dir))
+
+elif len(args.aux) > 0:
+    for p in sys.path:
+        v_found = None
+        for v in args.aux:
+            aux_dir = os.path.join(p, 'cic_eth_aux')
+            aux_mod_file = os.path.join(aux_dir, v, '__init__.py')
+            try:
+                st = os.stat(aux_mod_file)
+                v_found = v
+            except FileNotFoundError:
+                logg.debug('cannot find explicity requested aux module {} in path {}'.format(v, aux_dir))
+                continue
+        if v_found == None:
+            logg.critical('excplicity requested aux module {} not found in any path'.format(v))
+            sys.exit(1)
+
+        logg.info('aux module {} found in path {}'.format(v, aux_dir))
+        aux.append(v)
+
+for v in aux:
+    mname = 'cic_eth_aux.' + v
+    mod = importlib.import_module(mname)
+    mod.aux_setup(rpc, config)
+    logg.info('loaded aux module {}'.format(mname))
+
+
 def main():
     argv = ['worker']
     if args.vv:
@@ -184,25 +275,13 @@ def main():
 
     rpc = RPCConnection.connect(chain_spec, 'default')
 
-    try:
-        registry = connect_registry(rpc, chain_spec, config.get('CIC_REGISTRY_ADDRESS'))
-    except UnknownContractError as e:
-        logg.exception('Registry contract connection failed for {}: {}'.format(config.get('CIC_REGISTRY_ADDRESS'), e))
-        sys.exit(1)
-
-    trusted_addresses_src = config.get('CIC_TRUST_ADDRESS')
-    if trusted_addresses_src == None:
-        logg.critical('At least one trusted address must be declared in CIC_TRUST_ADDRESS')
-        sys.exit(1)
-    trusted_addresses = trusted_addresses_src.split(',')
-    for address in trusted_addresses:
-        logg.info('using trusted address {}'.format(address))
-
-    connect_declarator(rpc, chain_spec, trusted_addresses)
-    connect_token_registry(rpc, chain_spec)
-
     BaseTask.default_token_symbol = config.get('CIC_DEFAULT_TOKEN_SYMBOL')
     BaseTask.default_token_address = registry.by_name(BaseTask.default_token_symbol)
+    default_token = ERC20Token(chain_spec, rpc, BaseTask.default_token_address)
+    default_token.load(rpc)
+    BaseTask.default_token_decimals = default_token.decimals
+    BaseTask.default_token_name = default_token.name
+
     BaseTask.run_dir = config.get('CIC_RUN_DIR')
     logg.info('default token set to {} {}'.format(BaseTask.default_token_symbol, BaseTask.default_token_address))
    

apps/cic-eth/cic_eth/runnable/daemons/tracker.py

@@ -15,6 +15,7 @@ import cic_base.config
 import cic_base.log
 import cic_base.argparse
 import cic_base.rpc
+from cic_base.eth.syncer import chain_interface
 from cic_eth_registry.error import UnknownContractError
 from chainlib.chain import ChainSpec
 from chainlib.eth.constant import ZERO_ADDRESS
@@ -26,10 +27,8 @@ from hexathon import (
         strip_0x,
         )
 from chainsyncer.backend.sql import SQLBackend
-from chainsyncer.driver import (
-        HeadSyncer,
-        HistorySyncer,
-        )
+from chainsyncer.driver.head import HeadSyncer
+from chainsyncer.driver.history import HistorySyncer
 from chainsyncer.db.models.base import SessionBase
 
 # local imports
@@ -51,15 +50,23 @@ from cic_eth.registry import (
 
 script_dir = os.path.realpath(os.path.dirname(__file__))
 
+def add_block_args(argparser):
+    argparser.add_argument('--history-start', type=int, default=0, dest='history_start', help='Start block height for initial history sync')
+    argparser.add_argument('--no-history', action='store_true', dest='no_history', help='Skip initial history sync')
+    return argparser
+
+
 logg = cic_base.log.create()
 argparser = cic_base.argparse.create(script_dir, cic_base.argparse.full_template)
-#argparser = cic_base.argparse.add(argparser, add_traffic_args, 'traffic')
+argparser = cic_base.argparse.add(argparser, add_block_args, 'block')
 args = cic_base.argparse.parse(argparser, logg)
+
 config = cic_base.config.create(args.c, args, args.env_prefix)
 
 config.add(args.y, '_KEYSTORE_FILE', True)
-
 config.add(args.q, '_CELERY_QUEUE', True)
+config.add(args.history_start, 'SYNCER_HISTORY_START', True)
+config.add(args.no_history, '_NO_HISTORY', True)
 
 cic_base.config.log(config)
 
@@ -69,9 +76,10 @@ SessionBase.connect(dsn, pool_size=16, debug=config.true('DATABASE_DEBUG'))
 
 chain_spec = ChainSpec.from_chain_str(config.get('CIC_CHAIN_SPEC'))
 
-#RPCConnection.register_location(config.get('ETH_PROVIDER'), chain_spec, 'default')
 cic_base.rpc.setup(chain_spec, config.get('ETH_PROVIDER'))
 
+
+
 def main():
     # connect to celery
     celery.Celery(broker=config.get('CELERY_BROKER_URL'), backend=config.get('CELERY_RESULT_URL'))
@@ -89,7 +97,7 @@ def main():
         stat = init_chain_stat(rpc, block_start=block_current)
         loop_interval = stat.block_average()
 
-    logg.debug('starting at block {}'.format(block_offset))
+    logg.debug('current block height {}'.format(block_offset))
 
     syncers = []
 
@@ -98,8 +106,13 @@ def main():
     syncer_backends = SQLBackend.resume(chain_spec, block_offset)
 
     if len(syncer_backends) == 0:
-        logg.info('found no backends to resume')
-        syncer_backends.append(SQLBackend.initial(chain_spec, block_offset))
+        initial_block_start = config.get('SYNCER_HISTORY_START')
+        initial_block_offset = block_offset
+        if config.get('_NO_HISTORY'):
+            initial_block_start = block_offset
+            initial_block_offset += 1
+        syncer_backends.append(SQLBackend.initial(chain_spec, initial_block_offset, start_block_height=initial_block_start))
+        logg.info('found no backends to resume, adding initial sync from history start {} end {}'.format(initial_block_start, initial_block_offset))
     else:
         for syncer_backend in syncer_backends:
             logg.info('resuming sync session {}'.format(syncer_backend))
@@ -108,11 +121,11 @@ def main():
 
     for syncer_backend in syncer_backends:
         try:
-            syncers.append(HistorySyncer(syncer_backend))
+            syncers.append(HistorySyncer(syncer_backend, chain_interface))
             logg.info('Initializing HISTORY syncer on backend {}'.format(syncer_backend))
         except AttributeError:
             logg.info('Initializing HEAD syncer on backend {}'.format(syncer_backend))
-            syncers.append(HeadSyncer(syncer_backend))
+            syncers.append(HeadSyncer(syncer_backend, chain_interface))
 
     connect_registry(rpc, chain_spec, config.get('CIC_REGISTRY_ADDRESS'))
 
@@ -155,7 +168,6 @@ def main():
         for cf in callback_filters:
             syncer.add_filter(cf)
 
-        #r = syncer.loop(int(config.get('SYNCER_LOOP_INTERVAL')), rpc)
         r = syncer.loop(int(loop_interval), rpc)
         sys.stderr.write("sync {} done at block {}\n".format(syncer, r))
 

apps/cic-eth/cic_eth/runnable/info.py

@@ -12,10 +12,8 @@ import confini
 import celery
 
 # local imports
-from cic_eth.api import (
-        Api,
-        AdminApi,
-        )
+from cic_eth.api import Api
+from cic_eth.api.admin import AdminApi
 
 logging.basicConfig(level=logging.WARNING)
 logg = logging.getLogger()
@@ -60,14 +58,16 @@ admin_api = AdminApi(None)
 
 def main():
     t = admin_api.registry()
-    registry = t.get()
-    print('Registry address: {}'.format(registry))
+    registry_address = t.get()
+    print('Registry: {}'.format(registry_address))
 
     t = api.default_token()
     token_info = t.get()
     print('Default token symbol: {}'.format(token_info['symbol']))
     print('Default token address: {}'.format(token_info['address']))
+    logg.debug('Default token name: {}'.format(token_info['name']))
+    logg.debug('Default token decimals: {}'.format(token_info['decimals']))
 
-
+    
 if __name__ == '__main__':
     main()

apps/cic-eth/cic_eth/runnable/resend.py

@@ -11,7 +11,7 @@ from chainlib.chain import ChainSpec
 from chainlib.eth.connection import EthHTTPConnection
 
 # local imports
-from cic_eth.api.api_admin import AdminApi
+from cic_eth.api.admin import AdminApi
 
 logging.basicConfig(level=logging.WARNING)
 logg = logging.getLogger()

apps/cic-eth/cic_eth/runnable/tag.py

@@ -12,7 +12,7 @@ from chainlib.chain import ChainSpec
 from xdg.BaseDirectory import xdg_config_home
 
 # local imports
-from cic_eth.api import AdminApi
+from cic_eth.api.admin import AdminApi
 from cic_eth.db import dsn_from_config
 from cic_eth.db.models.base import SessionBase
 

apps/cic-eth/cic_eth/runnable/view.py

@@ -19,7 +19,7 @@ from chainlib.eth.connection import EthHTTPConnection
 from hexathon import add_0x
 
 # local imports
-from cic_eth.api import AdminApi
+from cic_eth.api.admin import AdminApi
 from cic_eth.db.enum import (
     StatusEnum,
     status_str,

apps/cic-eth/cic_eth/stat.py

@@ -20,7 +20,11 @@ def init_chain_stat(rpc, block_start=0):
     if block_start == 0:
         o = block_latest()
         r = rpc.do(o)
-        block_start = int(r, 16)
+        try:
+            block_start = int(r, 16)
+        except TypeError:
+            block_start = int(r)
+        logg.debug('blockstart {}'.format(block_start))
 
     for i in range(BLOCK_SAMPLES):
         o = block_by_number(block_start-10+i)

apps/cic-eth/cic_eth/task.py

@@ -1,6 +1,5 @@
 # import
 import time
-import requests
 import logging
 import uuid
 
@@ -20,7 +19,8 @@ import liveness.linux
 from cic_eth.error import SeppukuError
 from cic_eth.db.models.base import SessionBase
 
-logg = logging.getLogger().getChild(__name__)
+#logg = logging.getLogger().getChild(__name__)
+logg = logging.getLogger()
 
 celery_app = celery.current_app
 
@@ -33,6 +33,8 @@ class BaseTask(celery.Task):
     create_gas_oracle = RPCGasOracle
     default_token_address = None
     default_token_symbol = None
+    default_token_name = None
+    default_token_decimals = None
     run_dir = '/run'
 
     def create_session(self):
@@ -73,7 +75,7 @@ class CriticalSQLAlchemyTask(CriticalTask):
 
 class CriticalWeb3Task(CriticalTask):
     autoretry_for = (
-        requests.exceptions.ConnectionError,
+        ConnectionError,
         )
     safe_gas_threshold_amount = 2000000000 * 60000 * 3
     safe_gas_refill_amount = safe_gas_threshold_amount * 5 
@@ -83,7 +85,7 @@ class CriticalSQLAlchemyAndWeb3Task(CriticalTask):
     autoretry_for = (
         sqlalchemy.exc.DatabaseError,
         sqlalchemy.exc.TimeoutError,
-        requests.exceptions.ConnectionError,
+        ConnectionError,
         sqlalchemy.exc.ResourceClosedError,
         )
     safe_gas_threshold_amount = 2000000000 * 60000 * 3
@@ -99,7 +101,7 @@ class CriticalSQLAlchemyAndSignerTask(CriticalTask):
 
 class CriticalWeb3AndSignerTask(CriticalTask):
     autoretry_for = (
-        requests.exceptions.ConnectionError,
+        ConnectionError,
         )
     safe_gas_threshold_amount = 2000000000 * 60000 * 3
     safe_gas_refill_amount = safe_gas_threshold_amount * 5 
@@ -116,12 +118,13 @@ def registry():
     return CICRegistry.address
 
 
-@celery_app.task()
-def registry_address_lookup(chain_spec_dict, address, connection_tag='default'):
+@celery_app.task(bind=True, base=BaseTask)
+def registry_address_lookup(self, chain_spec_dict, address, connection_tag='default'):
     chain_spec = ChainSpec.from_dict(chain_spec_dict)
     conn = RPCConnection.connect(chain_spec, tag=connection_tag)
     registry = CICRegistry(chain_spec, conn)
-    return registry.by_address(address)
+    r = registry.by_address(address, sender_address=self.call_address)
+    return r
 
 
 @celery_app.task(throws=(UnknownContractError,))
@@ -129,7 +132,7 @@ def registry_name_lookup(chain_spec_dict, name, connection_tag='default'):
     chain_spec = ChainSpec.from_dict(chain_spec_dict)
     conn = RPCConnection.connect(chain_spec, tag=connection_tag)
     registry = CICRegistry(chain_spec, conn)
-    return registry.by_name(name)
+    return registry.by_name(name, sender_address=self.call_address)
 
 
 @celery_app.task()

apps/cic-eth/cic_eth/version.py

@@ -8,9 +8,9 @@ import semver
 
 version = (
         0,
-        11,
+        12,
         0,
-        'beta.13',
+        'alpha.2',
         )
 
 version_object = semver.VersionInfo(

apps/cic-eth/config/celery.ini

@@ -1,3 +1,4 @@
 [celery]
 broker_url = redis://
 result_url = redis://
+debug = 0

apps/cic-eth/config/docker/celery.ini

@@ -1,3 +1,4 @@
 [celery]
 broker_url = redis://localhost:63379
 result_url = redis://localhost:63379
+debug = 0

apps/cic-eth/config/docker/syncer.ini

@@ -1,2 +1,3 @@
 [SYNCER]
 loop_interval = 
+history_start = 0

apps/cic-eth/config/syncer.ini

@@ -1,2 +1,3 @@
 [SYNCER]
 loop_interval = 
+history_start = 0

apps/cic-eth/doc/texinfo/accounts.texi

@@ -0,0 +1,22 @@
+@node cic-eth-accounts
+@section Accounts
+
+Accounts are private keys in the signer component keyed by "addresses," a one-way transformation of a public key. Data can be signed by using the account as identifier for corresponding RPC requests.
+
+Any account to be managed by @code{cic-eth} must be created by the corresponding task. This is because @code{cic-eth} creates a @code{nonce} entry for each newly created account, and guarantees that every nonce will only be used once in its threaded environment.
+
+The calling code receives the account address upon creation. It never receives or has access to the private key.
+
+
+@subsection Signer RPC 
+
+The signer is expected to handle a subset of the standard JSON-RPC:
+
+@table @code
+@item personal_newAccount(password)
+Creates a new account, returning the account address.
+@item eth_signTransactions(tx_dict)
+Sign the transaction represented as a dictionary.
+@item eth_sign(address, message)
+Signs an arbtirary message with the standard Ethereum prefix.
+@end table

apps/cic-eth/doc/texinfo/admin.texi

@@ -0,0 +1,60 @@
+@node cic-eth system maintenance
+@appendix Admin API
+
+The admin API is still in an early stage of refinement. User friendliness can be considerably improved.
+
+All of the API calls are celery task proxies, and return @code{Celery.AsyncResult} unless otherwise noted.
+
+In contrast to the client API module, this API does not currently implement a pluggable callback.
+
+@appendixsection registry
+
+Returns the @code{ContractRegistry} this instance of @code{cic-eth-tasker} is running on.
+
+@appendixsection proxy-do
+
+Execute an arbitary JSON-RPC request using the @code{cic-eth-tasker} blockchain node RPC connection.
+
+@appendixsection default_token
+
+Returns the default token symbol and address.
+
+@appendixsection lock
+
+Set lock bits, globally or per address
+
+@appendixsection unlock
+
+Opposite of lock
+
+@appendixsection get_lock
+
+Get the current state of a lock
+
+@appendixsection tag_account
+
+Associate an identifier with an account address (@xref{cic-eth system accounts})
+
+@appendixsection have_account
+
+Check whether a private key exists in the keystore able to sign on behalf of the given account (it actually performs a signature).
+
+@appendixsection resend
+
+Clone or resend a transaction
+
+@appendixsection check_nonce
+
+Returns diagnostics for nonce sequences per account, e.g. detect nonce gaps that block execution of further transactions.
+
+@appendixsection fix_nonce
+
+Re-orders all nonces by shifting all transaction nonces after the given transaction down by one. This has the additional effect of obsoleting the given transaction. Can be used to close gaps in the nonce sequencing. Use with care!
+
+@appendixsection account
+
+Return brief transaction info lists per account
+
+@appendixsection tx
+
+Return a complex transaction metadata object for a single transaction. The object assembles state from both the blockchain node and the custodial queue system.

apps/cic-eth/doc/texinfo/all.texi

@@ -0,0 +1,18 @@
+\input texinfo
+@setfilename index.html
+@settitle CIC custodial services reference deployment
+
+@copying
+Released 2021 under GPL3
+@end copying
+
+@titlepage
+@title CIC custodial services reference deployment
+@author Louis Holbrook
+@end titlepage
+
+@c
+@contents
+
+@include index.texi
+

apps/cic-eth/doc/texinfo/chains.texi

@@ -0,0 +1,4 @@
+@node cic-eth Appendix Task chains
+@appendix Task chains
+
+TBC - explain here how to generate these chain diagrams

apps/cic-eth/doc/texinfo/configuration.texi

@@ -0,0 +1,108 @@
+@node cic-eth configuration
+@section Configuration
+
+(refer to @code{cic-base} for a general overview of the config pipeline)
+
+Configuration parameters are grouped by configuration filename.
+
+
+@subsection cic
+
+@table @var
+@item registry_address
+Ethereum address of the @var{ContractRegistry} contract
+@item chain_spec
+String representation of the connected blockchain according to the @var{chainlib} @var{ChainSpec} format.
+@item tx_retry_delay
+Minimum time in seconds to wait before retrying a transaction
+@item trust_address
+Comma-separated list of one or more ethereum addresses regarded as trusted for describing other resources, Used by @var{cic-eth-registry} in the context of the @var{AddressDeclarator}.
+@item defalt_token_symbol
+Fallback token to operate on when no other context is given.
+@item health_modules
+Comma-separated list of methods to execute liveness tests against. (see ...)
+@item run_dir
+Directory to use for session-scoped variables for @var{cic-eth} daemon parent processes.
+@end table
+
+
+@subsection celery
+
+@table @var
+@item broker_url
+Message broker URL
+@item result_url
+Result backend URL
+@item debug
+Boolean value. If set, the amount of available context for a task in the result backend will be maximized@footnote{This is a @emph{required} setting for the task graph documenter to enabled it to display task names in the graph}.
+@end table
+
+
+@subsection database
+
+See ref cic-base when ready
+
+
+@subsection eth
+
+@table @var
+@item provider
+Address of default RPC endpoint for transactions and state queries.
+@item gas_gifter_minimum_balance
+The minimum gas balance that must be held by the @code{GAS GIFTER} token before the queue processing shuts down@footnote{You should really make sure that this threshold is never hit}
+@end table
+
+
+@subsection redis
+
+Defines connection to the redis server used outside of the context of @var{celery}. This is usually the same server, but should be a different db.
+
+@table @var
+@item host
+Redis hostname
+@item port
+Redis port
+@item db
+Redis db
+@end table
+
+
+@subsection signer
+
+Parameters 
+
+@table @var
+@item socket_path
+The connection string for the signer JSON-RPC service.@footnote{The @var{crypto-dev-signer} supports UNIX socket or a HTTP(S) connections}
+@item secret
+If set, this password is used to add obfuscation on top of the encryption already applied by the signer for the keystore.
+@end table
+
+
+
+@subsection ssl
+
+Certificate information for https api callbacks.
+
+@table @var
+@item enable_client
+Boolean value. If set, client certificate will be used to authenticate the callback request.
+@item cert_file
+Client certificate file in PEM or DER format
+@item key_file
+Client key file in PEM or DER format
+@item password
+Password for unlocking the client key
+@item ca_file
+Certificate authority bundle, to verify the certificate sent by the callback server.
+@end table
+
+
+@subsection syncer
+
+@table @var
+@item loop_interval
+Seconds to pause before each execution of the @var{chainsyncer} poll loop.
+@end table
+
+

apps/cic-eth/doc/texinfo/dependencies.texi

@@ -0,0 +1,46 @@
+@node cic-eth-dependencies
+@section Dependencies
+
+This application is written in Python 3.8. It is tightly coupled with @code{python-celery}, which provides the task worker ecosystem. It also uses @code{SQLAlchemy} which provides useful abstractions for persistent storage though SQL, and @code{alembic} for database schema migrations.
+
+There is currently also a somewhat explicit coupling with @code{Redis}, which is used as message broker for @code{python-celery}. @code{Redis} is also explicitly used by some CLI tools to retrieve results from command execution. This coupling may be relaxed in the future to allow other key-value pubsub solutions instead. 
+
+
+@subsection Generalized project dependencies
+
+The core features are built around four main independent components that have been developed for the purpose of this project, but are separated and maintained as general-purpose libraries.
+
+@table @samp
+@item chainlib
+A cross-chain library prototype that can provide encodings for transactions on a Solidity-based EVM contract network.
+@item chainqueue
+Queue manager that guarantees delivery of outgoing blockchain transactions.
+@item chainsyncer
+Monitors blockchains and guarantees execution of an arbitrary count of pluggable code objects for each block transaction.
+@item crypto-dev-signer
+An keystore capable of signing for the EVM chain through a standard Ethereum JSON-RPC interface.
+@end table
+
+@anchor{cic-eth-dependencies-smart-contracts}
+@subsection Smart contract dependencies
+
+The Smart contracts needed by the network must be discoverable through a single entry point called the Contract Registry. The contract registry is expected to reference itself in its records. The authenticity of the contract registry must be guaranteed by external sources of trust.
+
+The contract registry maps contract addresses to well-known identifiers. The contracts are as follows:
+
+@table @code
+@item ContractRegistry (points to self)
+Resolves plaintext identifiers to contract addresses.
+@item AccountRegistry
+An append-only store of accounts hosted by the custodial system
+@item TokenRegistry
+Unique symbol-to-address mappings for token contracts
+@item AddressDeclarator
+Reverse address to resource lookup
+@item TokenAuthorization
+Escrow contract for external spending on behalf of custodial users
+@item Faucet
+Called by newly created accounts to receive initial token balance
+@end table
+
+The dependency @code{cic-eth-registry} abstracts and facilitates lookups of resources on the blockchain network. In its current state it resolves tokens by symbol or address, and contracts by common-name identifiers. In the @code{cic-eth} code all lookups for EVM network resources will be performed through this dependency.

apps/cic-eth/doc/texinfo/incoming.texi

@@ -0,0 +1,49 @@
+@node cic-eth-incoming
+@section Incoming transactions
+
+All transactions in mined blocks will be passed to a selection of plugin filters to the @code{chainsyncer} component. Each of these filters are individual python module files in @code{cic_eth.runnable.daemons.filters}. This section describes their function.
+
+The status bits refer to the bits definining the @code{chainqueue} state.
+
+
+@subsection tx
+
+Looks up the transaction in the local queue, and if found it sets the @code{FINAL} state bit. If the contract code execution was unsuccessful, the @code{NETWORK ERROR} state bit is also set.
+
+
+@subsection gas
+
+If the transaction is a gas token transfer, it checks if the recipient is a custodial account awaiting gas refill to execute a transaction (the queue item will have the @code{GAS ISSUES} bit set). If this is the case, the transaction will be activated by setting the @code{QUEUED} bit.
+
+
+@subsection register
+
+If the transaction is an account registration@footnote{The contract keyed by @var{AccountRegistry} in the @var{ContractRegistry} contract}, a Faucet transaction will be triggered for the registered account@footnote{The faucet contract used in the reference implementation will verify whether the account calling it is registered in the @var{AccountRegistry}. Thus it cannot be called before the account registration has succeeded.}
+
+
+@subsection callback
+
+Executes, in order, Celery tasks defined in the configuration variable @var{TASKS_TRANSFER_CALLBACKS}. Each of these tasks are registered as individual filters in the @code{chainsyncer} component, with the corresponding execution guarantees.
+
+The callbacks will receive the following arguments
+
+@enumerate
+@item @strong{result}
+A complex representation of the transaction (see section ?)
+@item @strong{transfertype}
+A string describing the type of transaction found@footnote{See appendix ? for an overview of possible values}
+@item @strong{status}
+0 if contract code executed successfully. Any other value is an error@footnote{The values 1-1024 are reserved for system specific errors. In the current implementation only a general error state with value 1 is defined. See appendix ?.}
+@end enumerate
+
+
+@subsection transferauth
+If a valid transfer authorization request has been made, a token @emph{allowance}@footnote{@code{approve} for ERC20 tokens} transaction is executed on behalf of the custodial account, with the @var{TransferAuthorization} contract as spender.
+
+
+
+@subsection convert
+If the transaction is a token conversion, @emph{and} there is a pending transfer registered for the conversion, the corresponding token transfer transaction will be executed. Not currently implemented
+
+
+

apps/cic-eth/doc/texinfo/index.texi

@@ -0,0 +1,14 @@
+@top cic-eth
+
+@include intro.texi
+@include dependencies.texi
+@include configuration.texi
+@include system.texi
+@include interacting.texi
+@include outgoing.texi
+@include incoming.texi
+@include services.texi
+@include tools.texi
+@include admin.texi
+@include chains.texi
+@include transfertypes.texi

apps/cic-eth/doc/texinfo/interacting.texi

@@ -0,0 +1,109 @@
+@node cic-eth-interacting
+@section Interacting with the system
+
+The API to the @var{cic-eth} component is a proxy for executing @emph{chains of Celery tasks}. The tasks that compose individual chains are documented in @ref{cic-eth Appendix Task chains,the Task Chain appendix}, which also describes a CLI tool that can generate graph representationso of them.
+
+There are two API classes, @var{Api} and @var{AdminApi}. The former is described later in this section, the latter described in @ref{cic-eth system maintenance,the Admin API appendix}.
+
+
+@subsection Interface
+
+API calls are constructed by creating @emph{Celery task signatures} and linking them together, sequentially and/or in parallell. In turn, the tasks themselves may spawn other asynchronous tasks. This means that the code in @file{cic_eth.api.*} does not necessarily specify the full task graph that will be executed for any one command.
+
+The operational guarantee that tasks will be executed, not forgotten, and retried under certain circumstances is deferred to @var{Celery}. On top of this, the @var{chainqueue} component ensures that semantic state changes that the @code{Celery} tasks ask of it are valid.
+
+
+@anchor{cic-eth-locking}
+@subsection Locking
+
+All methods that make a change to the blockchain network must pass @emph{locking layer checks}. Locks may be applied on a global or per-address basis. Lock states are defined by a combination of bit flags. The implemented lock bits are:
+
+@table @var
+@item INIT
+The system has not yet been initialized. In this state, writes are limited to creating unregistered accounts only.
+@item QUEUE
+Items may not be added to the queue
+@item SEND
+Queued items may not be attempted sent to the network
+@item CREATE (global-only)
+New accounts may not be created
+@item STICKY
+Until reset, no other part of the locking state can be reset
+@end table 
+
+
+@subsection Callback
+
+All API calls provide the option to attach a callback to the end of the task chain. This callback will be executed regardless of whether task chain execution succeeded or not.
+
+Refer to @file{cic-eth.callbacks.noop.noop} for the expected callback signature.
+
+
+@subsection API Methods that change state
+
+
+@subsubsection create_account
+
+Creates a new account in the keystore, optionally registering the account with the @var{AccountRegistry} contract.
+
+
+@subsubsection transfer
+
+Attempts to execute a token transaction between two addresses. It is the caller's responsibility to check whether the token balance is sufficient for the transactions.
+
+
+@subsubsection refill_gas
+
+Executes a gas token transfer to a custodial address from the @var{GAS GIFTER} system account.
+
+
+@subsubsection convert
+
+Converts a token to another token for the given custodial account. Currently not implemented.
+
+
+@anchor{cic-eth-convert-and-transfer}
+@subsubsection convert_and_transfer
+
+Same as convert, but will automatically execute a token transfer to another custodial account when conversion has been completed. Currently not implemented.
+
+
+@subsection Read-only API methods
+
+@subsubsection balance
+
+Retrieves a complex balance statement of a single account, including:
+
+@itemize
+@item The network balance at the current block height
+@item Value reductions due to by pending outgoing transactions
+@item Value increments due to by pending incoming transactions
+@end itemize
+
+Only the first of these balance items has guaranteed finality. The reduction by outgoing transaction can be reasonably be assumed to eventually become final. The same applies for the increment by incoming transaction, @emph{unless} the transfer is part of a multiple-transaction operation. For example, a @ref{cic-eth-convert-and-transfer,convert_and_transfer} operation may fail in the convert stage and/or may yield less tokens then expected after conversion.
+
+
+@subsubsection list
+
+Returns an aggregate iist of all token value changes for a given address. As not all value transfers are a result of literal value transfer contract calls (e.g. @var{transfer} and @var{transferFrom} in @var{ERC20}), this data may come from a number of sources, including:
+
+@itemize
+@item Literal value transfers within the custodial system
+@item Literal value transfers from or to an external address
+@item Faucet invocations (token minting)
+@item Demurrage and redistribution built into the token contract
+@end itemize
+
+
+@subsubsection default_token
+
+Return the symbol and address of the token used by default in the network.
+
+
+@subsubsection ping
+
+Convenience method for the caller to check whether the @var{cic-eth} engine is alive.
+
+
+
+

apps/cic-eth/doc/texinfo/outgoing.texi

@@ -0,0 +1,74 @@
+@node cic-eth-outgoing
+@section Outgoing transactions
+
+@strong{Important! A pre-requisite for proper functioning of the component is that no other agent is sending transactions to the network for any of the keys in the keystore.}
+
+The term @var{state bit} refers to the bits definining the @code{chainqueue} state.
+
+@subsection Lock
+
+Any task that changes blockchain state @strong{must} apply a @code{QUEUE} lock for the address it operates on. This is to ensure that transactions are sent to the network in order.@footnote{If too many transactions arrive out of order to the blockchain node, it may arbitrarily prune those that cannot directly be included in a block. This puts unnecessary strain (and reliance) on the transaction retry mechanism.}
+
+This lock will be released once the blockchain node confirms handover of the transaction.@footnote{This is the responsibility of the @var{dispatcher} service}
+
+
+@subsection Nonce
+
+A separate task step is executed for binding a transaction nonce to a Celery task root id, which uniquely identifies the task chain. This provides atomicity of the nonce across the parallell task environment, and also recoverability in case unexpected program interruption.
+
+The nonce of a permanently failed task must be @emph{manually} unlocked. Celery tasks that involve nonces who permanently fail are to be considered @emph{critical anomalies} and should not happen. The queue locking mechanism is designed to prevent the amount of out-of-sequence transactions for an account to escalate.
+
+
+@subsection Choosing fee prices
+
+@code{cic-eth} uses the @code{chainlib} module to resolve gas price lookups.
+
+Optimizing gas price discovery should be the responsibility of the chainlib layer. It already accommodates using an separate RPC for the @code{eth_gasPrice} call.@footnote{A sample implementation of a gas price tracker speaking JSON-RPC (also built using chainlib/chainsyncer) can be found at @url{https://gitlab.com/nolash/eth-stat-syncer}.}
+
+
+@subsection Choosing gas limits
+
+To determine the gas limit of a transaction, normally the EVM node will be used to perform a dry-run exection of the inputs against the current chain state.
+
+As the current state of the custodial system should only rely on known, trusted contract bytecode, there is no real need for this mechanism. The @code{chainlib}-based contract interfaces are expected to provide a method call that return safe gas limit values for contract interactions.@footnote{Of course, this method call may in turn conceal more sophisticated gas limit heuristics.}
+
+Note that it is still the responsibility of @code{cic-eth} to make sure that the gas limit of the network is sufficient to allow execution of all needed contracts.
+
+
+@subsection Gas refills
+
+If the gas balance of a custodial account is below a certain threshold, a gas refill task will be spawned. The gas will be transferred from the @code{GAS GIFTER} system account.
+
+In the event that the balance is insufficient even for the imminent transaction@footnote{This will of course be the case when an account is first created, whereupon it has a balance of 0. The subsequent faucet call will spawn a gas refill task.}, execution of the transaction will be deferred until the gas refill transaction is completed. In this case the transaction will be marked with the @code{GAS ISSUES} state bit.
+
+The value chosen for the gas refill threshold should ideally allow enough of a margin to avoid the need of deferring transactions in the future.
+
+
+@subsection Queueing transactions
+
+Once the lock, nonce and gas processing parts has been completed, the transaction will be queued for sending. This means that the @code{QUEUED} state bit is set. From here the @ref{cic-eth-services-dispatcher,dispatcher service} takes over responsibility.
+
+
+@subsection Retrying transactions
+
+There are three conditions create the need to defer and retry transactions.
+
+The first is communication problems with the blockchain node itself, for example if it is overloaded or being restarted. As far as possible, retries of this nature will be left to the Celery task workers. There may be cases, however, where it is appropriate to hand the responsibility to the @code{chainqueue} instead. In this case, the queue item will have the @code{NODE ERROR} state bit set.
+
+The second condition occurs when transactions take too long to be confirmed by the network. In this case, the transaction will be re-submitted, but with a higher gas price.
+
+The third condition occurs when the blockchain node purges the transaction from the mempool before it is sent to the network. @code{cic-eth} does not distinguish this case from the second, as the issue is solved using the same mechanism.
+
+
+@subsubsection Transaction obsoletion
+
+"Re-submitting" a transaction means creating a transaction with a previously used nonce for an account address.
+
+When this happens, The @code{chainqueue} will still contain all previous transactions with the same nonce. The transaction being superseded will have the @code{OBSOLETED} state bit set.
+
+Once a transaction has been mined, all other transactions with the same node will have the @code{OBSOLETED} and @code{FINAL} state bits set.
+
+
+@subsection Unexpected conditions
+
+Any unexpected condition exposing the need for urgent code improvement and/or manual intervention will be signalled by marking the transaction with the @code{FUBAR} state bit set.

apps/cic-eth/doc/texinfo/overview.texi

@@ -1,24 +0,0 @@
-@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}.

apps/cic-eth/doc/texinfo/services.texi

@@ -0,0 +1,50 @@
+@node cic-eth-services
+@section Services
+
+There are four daemons that together orchestrate all of the aforementioned recipes. This section will provide a high level description of them. 
+
+Each of them have their own set of command line flags. These are available in the CLI help text provided by @kbd{-h} @kbd{--help} and are not recited here.
+
+Daemon executable scripts are located in the @file{cic_eth.runnable.daemons} package. If @var{cic-eth} is installed as a python package, they are installed as executables in @var{PATH}.
+
+
+@subsection tasker
+
+This is the heart of the custodial system. Tasker is the parent process for the celery workers executing all tasks interacting with and changing the state of the queue and the chain. It is also the only service that interfaces with the signer/keystore.
+
+The other @var{cic-eth} daemons all interface with this component, along with any client adapter bridging an end-user gateway (e.g. @var{cic-ussd}). However, the service itself does not have to be actively running for the other services to run; @var{Celery} handles queueing up the incoming tasks until the @var{tasker} comes back online.@footnote{Whereas this is true, there is currently no fail-safe implemented to handles the event of task backlog overflow in Celery. Furthermore, no targeted testing has yet been performed to asses the stability of the system over time if a sudden, sustained surge of resumed task executions occurs. It may be advisable to suspend activity that adds new queue items to the system if volume is high and/or the @var{cic-eth} outage endures. However, there is no panacea for this condition, as every usage scenario is different}
+
+The tasker has a set of pre-requisites that must be fulfilled before it will start
+
+@itemize
+@item It must be given a valid @var{ContractRegistry} address, which must include valid references to all contracts specified in @ref{cic-eth-dependencies-smart-contracts,Smart contract dependencies}
+@item The gas gifter balance must be above the minimum threshold (See "eth" section in configurations).
+@item There must be a valid alembic migration record in the storage database
+@item The redis backend must be reachable and writable
+@item There must be a reachable JSON-RPC server at the other end of the signer socket path (see "signer" section in configurations)
+@end itemize
+
+
+@subsection tracker
+
+Implements the @var{chainsyncer}, and registers the filters described in @ref{cic-eth-incoming,Incoming Transactions} to be executed for every transaction. It consumes the appropriate @var{TASKS_TRANSFER_CALLBACKS} configuration setting to add externally defined filters at without having to change the daemon code.
+
+The @var{tracker} has the same requisities for the @var{ContractRegistry} as the @var{tasker}.
+
+@strong{Important! Guarantees of filter executions has some caveats. Refer to the @var{chainsyncer} documentation for more details.}
+
+
+@anchor{cic-eth-services-dispatcher}
+@subsection dispatcher
+
+Uses the @code{get_upcoming_tx} method call from @var{chainqueue} to receive batches of queued transactions that are ready to send to the blockchain node. Every batch will only contain a single transaction by any one address, which will be the transaction with the next nonce not previously seen by the network. There is no limit currently set to how many transactions that will be included in a single batch.
+
+
+@subsection retrier
+
+The responsibility of the @var{retrier} is to re-queue transactions that failed to be sent to the blockchain node, as well as create @emph{replacements} for transactions whose processing by the network has been delayed. @strong{[refer transaction obolestion]}.
+
+It is in turn the responsiblity of the @var{dispatcher} to send these (re-)queued transactions to the blockchain node.
+
+
+

apps/cic-eth/doc/texinfo/system.texi

@@ -0,0 +1,17 @@
+@node cic-eth system accounts
+@section System initialization
+
+When the system starts for the first time, it is locked for any state change request other than account creation@footnote{Specifically, the @code{INIT}, @code{SEND} and @code{QUEUE} lock bits are set.}. These locks should be @emph{reset} once system initialization has been completed. Currently, system initialization only involves creating and tagging required system accounts, as specified below.
+
+See @ref{cic-eth-locking,Locking} and @ref{cic-eth-tools-ctrl,ctrl in Tools} for details on locking.
+
+@subsection System accounts
+
+Certain accounts in the system have special roles. These are defined by @emph{tagging} certain accounts addresses with well-known identifiers.
+
+@table @var
+@item GAS_GIFTER
+This account @strong{must} at all times have enough gas token to fund any custodial account address in need.
+@item ACCOUNT_REGISTRY_WRITER
+This account @strong{must} have access to add newly created account addresses to the (@xref{cic-eth-dependencies-smart-contracts,Smart contract dependencies})
+@end table

apps/cic-eth/doc/texinfo/tools.texi

@@ -0,0 +1,51 @@
+@node cic-eth-tools
+@section Tools
+
+A collection of CLI tools have been provided to help with diagnostics and other administrative tasks. These use the same configuration infrastructure as the daemons.
+
+Tool scripts are located in the @file{cic_eth.runnable} package. If @var{cic-eth} is installed as a python package, they are installed as executables in @var{PATH}.
+
+
+@subsection info (cic-eth-info)
+
+Returns self-explanatory metadata for the blockchain network, and optionally an address.
+
+
+@subsection inspect (cic-eth-inspect)
+
+Returns information about a specific resource related to the tranasaction queue. The results returned depend on the type of the argument.
+
+@table @var
+@item lock
+If the argument is the literal string @kbd{lock}, it will list all active lock settings currently in effect. (@xref{cic-eth-locking})
+@item <address>
+If the argument is a 0x-prefixed hex string of 42 characters, it returns all transactions where the specified address is a sender or recipient@footnote{If the address is the gas gifter or the accounts index writer, this may be a @emph{lot} of transactions. Use with care!}
+@item <tx_hash>
+If the argument is a 0x-prefixed hex string of 66 characters, it returns data from the custodial queueing system aswell as the network for a single transaction whose hash matches the input. Fails if the transaction does not exist in the queue
+@item <code>
+If the argument is a 0x-prefixed hex string longer than 66 bytes, the argument will be interpreted as raw RLP serialized transaction data, and attempt to match this with an entry in the queue. If a match is found, the result is the same as for @var{<tx_hash>}
+@end table
+
+
+@subsection create (cic-eth-create)
+
+Create a new account, optionally registering the account in the accounts registry, and optionally receiving the newly created address through a redis subscription.
+
+@subsection transfer (cic-eth-transfer)
+
+Execute a token transfer on behalf of a custodial account.
+
+@subsection tag (cic-eth-tag)
+
+Associate an account address with a string identifier. @xref{cic-eth system accounts}
+
+
+@anchor{cic-eth-tools-ctrl}
+@subsection ctrl (cic-eth-ctrl)
+
+Set or reset lock bits, globally or per account address.
+
+@subsection resend (cic-eth-resend)
+
+Resend a transaction. This can either be done "in-place," which means increasing the gas price and re-queueing@footnote{this is the same thing that the retrier does}. It can also be used to @emph{clone} a transaction, which obviously will duplicate the effect of the cloned transaction on the blockchain network.
+

apps/cic-eth/doc/texinfo/transfertypes.texi

@@ -0,0 +1,11 @@
+@node cic-eth Appendix Transaction types
+@appendix Transfer types
+
+@table @var
+@item transfer
+A regular token transfer, e.g. ERC20 @code{transfer}
+@item transferfrom
+A token transfer performed on behalf of another party, e.g. ERC20 @code{transferFrom}
+@item tokengift
+Result of a successful faucet request.
+@end table

apps/cic-eth/docker/Dockerfile

@@ -1,48 +1,75 @@
-# FROM grassrootseconomics:cic
+FROM python:3.8.6-slim-buster as compile
 
-#FROM python:3.8.6-alpine
-FROM python:3.8.6-slim-buster
+WORKDIR /usr/src
 
-#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 git
 
-# 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
-RUN /usr/local/bin/python -m pip install --upgrade pip
-#RUN git clone https://gitlab.com/grassrootseconomics/cic-base.git && \
-#	cd cic-base && \
-#	git checkout 7ae1f02efc206b13a65873567b0f6d1c3b7f9bc0 && \
-#	python merge_requirements.py | tee merged_requirements.txt 
-#RUN cd cic-base && \
-#	pip install $pip_extra_index_url_flag -r ./merged_requirements.txt 
-RUN  pip install $pip_extra_index_url_flag cic-base[full_graph]==0.1.2b9
+#RUN python -m venv venv && . venv/bin/activate
+
+ARG pip_extra_index_url_flag='--index https://pypi.org/simple --extra-index-url https://pip.grassrootseconomics.net:8433'
+ARG EXTRA_INDEX_URL="https://pip.grassrootseconomics.net:8433"
+ARG GITLAB_PYTHON_REGISTRY="https://gitlab.com/api/v4/projects/27624814/packages/pypi/simple"
+RUN /usr/local/bin/python -m pip install --upgrade pip
+RUN pip install semver
+
+COPY cic-eth-aux/  ./cic-eth-aux/
+WORKDIR /usr/src/cic-eth-aux/erc20-demurrage-token
+RUN	pip install --extra-index-url $GITLAB_PYTHON_REGISTRY \
+    	--extra-index-url $EXTRA_INDEX_URL .
+
+WORKDIR /usr/src/cic-eth
+
+COPY cic-eth/ .
+RUN	pip install --extra-index-url $GITLAB_PYTHON_REGISTRY \
+    	--extra-index-url $EXTRA_INDEX_URL .[services]
+
+# --- TEST IMAGE ---
+FROM python:3.8.6-slim-buster as test 
+
+RUN apt-get update && \
+	apt install -y gcc gnupg libpq-dev wget make g++ gnupg bash procps git
+
+WORKDIR /usr/src/cic-eth
+
+RUN /usr/local/bin/python -m pip install --upgrade pip
+
+COPY --from=compile /usr/local/bin/ /usr/local/bin/
+COPY --from=compile /usr/local/lib/python3.8/site-packages/ \
+                          /usr/local/lib/python3.8/site-packages/
+# TODO we could use venv inside container to isolate the system and app deps further
+# COPY --from=compile /usr/src/cic-eth/ .
+# RUN . venv/bin/activate
+
+ARG EXTRA_INDEX_URL="https://pip.grassrootseconomics.net:8433"
+ARG GITLAB_PYTHON_REGISTRY="https://gitlab.com/api/v4/projects/27624814/packages/pypi/simple"
 
-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 .
+RUN	pip install --extra-index-url $GITLAB_PYTHON_REGISTRY \
+    	--extra-index-url $EXTRA_INDEX_URL -r test_requirements.txt
+
+COPY cic-eth . 
+
+ENV PYTHONPATH .
+
+ENTRYPOINT ["pytest"]
+
+# --- RUNTIME ---
+FROM python:3.8.6-slim-buster as runtime 
+
+RUN apt-get update && \
+	apt install -y gnupg libpq-dev procps
+
+WORKDIR /usr/src/cic-eth
+
+COPY --from=compile /usr/local/bin/ /usr/local/bin/
+COPY --from=compile /usr/local/lib/python3.8/site-packages/ \
+                          /usr/local/lib/python3.8/site-packages/
 
 COPY cic-eth/docker/* ./ 
 RUN chmod 755 *.sh
-COPY cic-eth/tests/ tests/
 
+COPY cic-eth/scripts/ scripts/
 # # 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 <dir> (executable provided by confini package)
@@ -51,3 +78,4 @@ 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/
 
 COPY util/liveness/health.sh /usr/local/bin/health.sh
+

apps/cic-eth/docker/start_tasker.sh

@@ -8,7 +8,7 @@ set -e
 echo "!!! starting signer"
 python /usr/local/bin/crypto-dev-daemon -c /usr/local/etc/crypto-dev-signer -vv 2> /tmp/signer.log &
 
-echo "!!! starting tracker"
+echo "!!! starting taskerd"
 /usr/local/bin/cic-eth-taskerd $@
 
 # thanks! https://docs.docker.com/config/containers/multi-service_container/

apps/cic-eth/requirements.txt

@@ -1,24 +1,3 @@
-cic-base~=0.1.2b11
 celery==4.4.7
-crypto-dev-signer~=0.4.14b3
-confini~=0.3.6rc3
-cic-eth-registry~=0.5.5a4
-redis==3.5.3
-alembic==1.4.2
-websockets==8.1
-requests~=2.24.0
-eth_accounts_index~=0.0.11a12
-erc20-transfer-authorization~=0.3.1a6
-uWSGI==2.0.19.1
+chainlib~=0.0.5a1
 semver==2.13.0
-websocket-client==0.57.0
-moolb~=0.1.1b2
-eth-address-index~=0.1.1a11
-chainlib~=0.0.3a1
-hexathon~=0.0.1a7
-chainsyncer[sql]~=0.0.2a4
-chainqueue~=0.0.2a2
-sarafu-faucet==0.0.3a3
-erc20-faucet==0.2.1a4
-coincurve==15.0.0
-potaahto~=0.0.1a2

apps/cic-eth/scripts/migrate.py

@@ -2,6 +2,8 @@
 import os
 import argparse
 import logging
+import re
+import sys
 
 import alembic
 from alembic.config import Config as AlembicConfig
@@ -23,6 +25,8 @@ 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('--reset', action='store_true', help='downgrade before upgrading')
+argparser.add_argument('-f', action='store_true', help='force action')
 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()
@@ -53,4 +57,10 @@ ac = AlembicConfig(os.path.join(migrations_dir, 'alembic.ini'))
 ac.set_main_option('sqlalchemy.url', dsn)
 ac.set_main_option('script_location', migrations_dir)
 
+if args.reset:
+    if not args.f:
+        if not re.match(r'[yY][eE]?[sS]?', input('EEK! this will DELETE the existing db. are you sure??')):
+            logg.error('user chickened out on requested reset, bailing')
+            sys.exit(1)
+    alembic.command.downgrade(ac, 'base')
 alembic.command.upgrade(ac, 'head')

apps/cic-eth/services_requirements.txt

@@ -0,0 +1,14 @@
+chainsyncer[sql]~=0.0.3a3
+chainqueue~=0.0.2b5
+alembic==1.4.2
+confini~=0.3.6rc4
+redis==3.5.3
+hexathon~=0.0.1a7
+pycryptodome==3.10.1
+liveness~=0.0.1a7
+eth-address-index~=0.1.2a1
+eth-accounts-index~=0.0.12a1
+cic-eth-registry~=0.5.6a1
+erc20-faucet~=0.2.2a1
+sarafu-faucet~=0.0.4a1
+moolb~=0.1.1b2