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feat: Add token metadata API

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This commit is contained in:
Louis Holbrook 2021-10-14 13:24:51 +00:00 committed by Philip Wafula
parent 6b59c87f68
commit 045a279ac2
19 changed files with 534 additions and 39 deletions
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2
apps/cic-eth/admin_requirements.txt
View File

@ -1,5 +1,5 @@
SQLAlchemy==1.3.20
cic-eth-registry>=0.6.1a3,<0.7.0
cic-eth-registry>=0.6.1a5,<0.7.0
hexathon~=0.0.1a8
chainqueue>=0.0.4a6,<0.1.0
eth-erc20>=0.1.2a2,<0.2.0

21
apps/cic-eth/cic_eth/admin/token.py
View File

@ -1,21 +1,2 @@
# standard imports
import logging
# external imports
import celery
# local imports
from cic_eth.task import BaseTask
celery_app = celery.current_app
logg = logging.getLogger()
@celery_app.task(bind=True, base=BaseTask)
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,
}
from cic_eth.eth.erc20 import default_token

132
apps/cic-eth/cic_eth/api/api_task.py
View File

@ -17,15 +17,50 @@ from cic_eth.enum import LockEnum
app = celery.current_app
logg = logging.getLogger(__name__)
#logg = logging.getLogger(__name__)
logg = logging.getLogger()
class Api(ApiBase):
@staticmethod
def to_v_list(v, n):
"""Translate an arbitrary number of string and/or list arguments to a list of list of string arguments
:param v: Arguments
:type v: str or list
:param n: Number of elements to generate arguments for
:type n: int
:rtype: list
:returns: list of assembled arguments
"""
if isinstance(v, str):
vv = v
v = []
for i in range(n):
v.append([vv])
elif not isinstance(v, list):
raise ValueError('argument must be single string, or list or strings or lists')
else:
if len(v) != n:
raise ValueError('v argument count must match integer n')
for i in range(n):
if isinstance(v[i], str):
v[i] = [v[i]]
elif not isinstance(v, list):
raise ValueError('proof argument must be single string, or list or strings or lists')
return v
def default_token(self):
"""Retrieves the default fallback token of the custodial network.
:returns: uuid of root task
:rtype: celery.Task
"""
s_token = celery.signature(
'cic_eth.admin.token.default_token',
'cic_eth.eth.erc20.default_token',
[],
queue=self.queue,
)
@ -35,6 +70,97 @@ class Api(ApiBase):
return s_token.apply_async()
def token(self, token_symbol, proof=None):
"""Single-token alias for tokens method.
See tokens method for details.
:param token_symbol: Token symbol to look up
:type token_symbol: str
:param proof: Proofs to add to signature verification for the token
:type proof: str or list
:returns: uuid of root task
:rtype: celery.Task
"""
if not isinstance(token_symbol, str):
raise ValueError('token symbol must be string')
return self.tokens([token_symbol], proof=proof)
def tokens(self, token_symbols, proof=None):
"""Perform a token data lookup from the token index. The token index will enforce unique associations between token symbol and contract address.
Token symbols are always strings, and should be specified using uppercase letters.
If the proof argument is included, the network will be queried for trusted signatures on the given proof(s). There must exist at least one trusted signature for every given proof for every token. Trusted signatures for the custodial system are provided at service startup.
The proof argument may be specified in a number of ways:
- as None, in which case proof checks are skipped (although there may still be builtin proof checks being performed)
- as a single string, where the same proof is used for each token lookup
- as an array of strings, where the respective proof is used for the respective token. number of proofs must match the number of tokens.
- as an array of lists, where the respective proofs in each list is used for the respective token. number of lists of proofs must match the number of tokens.
The success callback provided at the Api object instantiation will receive individual calls for each token that passes the proof checks. Each token that does not pass is passed to the Api error callback.
This method is not intended to be used synchronously. Do so at your peril.
:param token_symbols: Token symbol strings to look up
:type token_symbol: list
:param proof: Proof(s) to verify tokens against
:type proof: None, str or list
:returns: uuid of root task
:rtype: celery.Task
"""
if not isinstance(token_symbols, list):
raise ValueError('token symbols argument must be list')
if proof == None:
logg.debug('looking up tokens without external proof check: {}'.format(','.join(token_symbols)))
proof = ''
logg.debug('proof is {}'.format(proof))
l = len(token_symbols)
if len(proof) == 0:
l = 0
proof = Api.to_v_list(proof, l)
chain_spec_dict = self.chain_spec.asdict()
s_token_resolve = celery.signature(
'cic_eth.eth.erc20.resolve_tokens_by_symbol',
[
token_symbols,
chain_spec_dict,
],
queue=self.queue,
)
s_token_info = celery.signature(
'cic_eth.eth.erc20.token_info',
[
chain_spec_dict,
proof,
],
queue=self.queue,
)
s_token_verify = celery.signature(
'cic_eth.eth.erc20.verify_token_info',
[
chain_spec_dict,
self.callback_success,
self.callback_error,
],
queue=self.queue,
)
s_token_info.link(s_token_verify)
s_token_resolve.link(s_token_info)
return s_token_resolve.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.
#

5
apps/cic-eth/cic_eth/callbacks/noop.py
View File

@ -1,7 +1,10 @@
import logging
import celery
celery_app = celery.current_app
logg = celery_app.log.get_default_logger()
#logg = celery_app.log.get_default_logger()
logg = logging.getLogger()
@celery_app.task(bind=True)

7
apps/cic-eth/cic_eth/error.py
View File

@ -48,8 +48,6 @@ class RoleMissingError(Exception):
pass
class IntegrityError(Exception):
"""Exception raised to signal irregularities with deduplication and ordering of tasks
@ -85,3 +83,8 @@ class RoleAgencyError(SeppukuError):
class YouAreBrokeError(Exception):
"""Exception raised when a value transfer is attempted without access to sufficient funds
"""
class TrustError(Exception):
"""Exception raised when required trust proofs are missing for a request
"""

66
apps/cic-eth/cic_eth/eth/erc20.py
View File

@ -19,6 +19,7 @@ from hexathon import (
from chainqueue.error import NotLocalTxError
from eth_erc20 import ERC20
from chainqueue.sql.tx import cache_tx_dict
from okota.token_index import to_identifier
# local imports
from cic_eth.db.models.base import SessionBase
@ -39,9 +40,11 @@ from cic_eth.task import (
CriticalSQLAlchemyTask,
CriticalWeb3Task,
CriticalSQLAlchemyAndSignerTask,
BaseTask,
)
from cic_eth.eth.nonce import CustodialTaskNonceOracle
from cic_eth.encode import tx_normalize
from cic_eth.eth.trust import verify_proofs
celery_app = celery.current_app
logg = logging.getLogger()
@ -473,3 +476,66 @@ def cache_approve_data(
session.close()
return (tx_hash_hex, cache_id)
@celery_app.task(bind=True, base=BaseTask)
def token_info(self, tokens, chain_spec_dict, proofs=[]):
chain_spec = ChainSpec.from_dict(chain_spec_dict)
rpc = RPCConnection.connect(chain_spec, 'default')
i = 0
for token in tokens:
result_data = []
token_chain_object = ERC20Token(chain_spec, rpc, add_0x(token['address']))
token_chain_object.load(rpc)
token_symbol_proof_hex = to_identifier(token_chain_object.symbol)
token_proofs = [token_symbol_proof_hex]
if len(proofs) > 0:
token_proofs += proofs[i]
tokens[i] = {
'decimals': token_chain_object.decimals,
'name': token_chain_object.name,
'symbol': token_chain_object.symbol,
'address': tx_normalize.executable_address(token_chain_object.address),
'proofs': token_proofs,
'converters': tokens[i]['converters'],
}
i += 1
return tokens
@celery_app.task(bind=True, base=BaseTask)
def verify_token_info(self, tokens, chain_spec_dict, success_callback, error_callback):
queue = self.request.delivery_info.get('routing_key')
for token in tokens:
s = celery.signature(
'cic_eth.eth.trust.verify_proofs',
[
token,
token['address'],
token['proofs'],
chain_spec_dict,
success_callback,
error_callback,
],
queue=queue,
)
s.link(success_callback)
s.on_error(error_callback)
s.apply_async()
return tokens
@celery_app.task(bind=True, base=BaseTask)
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,
}

77
apps/cic-eth/cic_eth/eth/trust.py Normal file
View File

@ -0,0 +1,77 @@
# standard imports
import logging
# external imports
import celery
from eth_address_declarator import Declarator
from chainlib.connection import RPCConnection
from chainlib.chain import ChainSpec
from cic_eth.db.models.role import AccountRole
from cic_eth_registry import CICRegistry
from hexathon import strip_0x
# local imports
from cic_eth.task import BaseTask
from cic_eth.error import TrustError
celery_app = celery.current_app
logg = logging.getLogger()
@celery_app.task(bind=True, base=BaseTask)
def verify_proof(self, chained_input, proof, subject, chain_spec_dict, success_callback, error_callback):
proof = strip_0x(proof)
proofs = []
logg.debug('proof count {}'.format(len(proofs)))
if len(proofs) == 0:
logg.debug('error {}'.format(len(proofs)))
raise TrustError('foo')
return (chained_input, (proof, proofs))
@celery_app.task(bind=True, base=BaseTask)
def verify_proofs(self, chained_input, subject, proofs, chain_spec_dict, success_callback, error_callback):
queue = self.request.delivery_info.get('routing_key')
chain_spec = ChainSpec.from_dict(chain_spec_dict)
rpc = RPCConnection.connect(chain_spec, 'default')
session = self.create_session()
sender_address = AccountRole.get_address('DEFAULT', session)
registry = CICRegistry(chain_spec, rpc)
declarator_address = registry.by_name('AddressDeclarator', sender_address=sender_address)
declarator = Declarator(chain_spec)
have_proofs = {}
for proof in proofs:
proof = strip_0x(proof)
have_proofs[proof] = []
for trusted_address in self.trusted_addresses:
o = declarator.declaration(declarator_address, trusted_address, subject, sender_address=sender_address)
r = rpc.do(o)
declarations = declarator.parse_declaration(r)
logg.debug('comparing proof {} with declarations for {} by {}: {}'.format(proof, subject, trusted_address, declarations))
for declaration in declarations:
declaration = strip_0x(declaration)
if declaration == proof:
logg.debug('have token proof {} match for trusted address {}'.format(declaration, trusted_address))
have_proofs[proof].append(trusted_address)
out_proofs = {}
for proof in have_proofs.keys():
if len(have_proofs[proof]) == 0:
logg.error('missing signer for proof {} subject {}'.format(proof, subject))
raise TrustError((subject, proof,))
out_proofs[proof] = have_proofs[proof]
return (chained_input, out_proofs)

8
apps/cic-eth/cic_eth/pytest/fixtures_celery.py
View File

@ -4,18 +4,21 @@ import tempfile
import logging
import shutil
# local impors
# local imports
from cic_eth.task import BaseTask
#logg = logging.getLogger(__name__)
logg = logging.getLogger()
@pytest.fixture(scope='function')
def init_celery_tasks(
contract_roles,
):
BaseTask.call_address = contract_roles['DEFAULT']
BaseTask.trusted_addresses = [
contract_roles['TRUSTED_DECLARATOR'],
contract_roles['CONTRACT_DEPLOYER'],
]
# celery fixtures
@ -38,6 +41,7 @@ def celery_includes():
'cic_eth.callbacks.noop',
'cic_eth.callbacks.http',
'cic_eth.pytest.mock.filter',
'cic_eth.pytest.mock.callback',
]

1
apps/cic-eth/cic_eth/pytest/mock/__init__.py
View File

@ -1 +1,2 @@
from .filter import *
from .callback import *

38
apps/cic-eth/cic_eth/pytest/mock/callback.py Normal file
View File

@ -0,0 +1,38 @@
# standard imports
import os
import logging
import mmap
# standard imports
import tempfile
# external imports
import celery
#logg = logging.getLogger(__name__)
logg = logging.getLogger()
celery_app = celery.current_app
class CallbackTask(celery.Task):
mmap_path = tempfile.mkdtemp()
@celery_app.task(bind=True, base=CallbackTask)
def test_callback(self, a, b, c):
s = 'ok'
if c > 0:
s = 'err'
fp = os.path.join(self.mmap_path, b)
f = open(fp, 'wb+')
f.write(b'\x00')
f.seek(0)
m = mmap.mmap(f.fileno(), length=1)
m.write(c.to_bytes(1, 'big'))
m.close()
f.close()
logg.debug('test callback ({}): {} {} {}'.format(s, a, b, c))

1
apps/cic-eth/cic_eth/runnable/daemons/tasker.py
View File

@ -210,6 +210,7 @@ def main():
default_token.load(conn)
BaseTask.default_token_decimals = default_token.decimals
BaseTask.default_token_name = default_token.name
BaseTask.trusted_addresses = trusted_addresses
BaseTask.run_dir = config.get('CIC_RUN_DIR')
logg.info('default token set to {} {}'.format(BaseTask.default_token_symbol, BaseTask.default_token_address))

1
apps/cic-eth/cic_eth/task.py
View File

@ -28,6 +28,7 @@ class BaseTask(celery.Task):
session_func = SessionBase.create_session
call_address = ZERO_ADDRESS
trusted_addresses = []
create_nonce_oracle = RPCNonceOracle
create_gas_oracle = RPCGasOracle
default_token_address = None

2
apps/cic-eth/cic_eth/version.py
View File

@ -10,7 +10,7 @@ version = (
0,
12,
4,
'alpha.8',
'alpha.11',
)
version_object = semver.VersionInfo(

2
apps/cic-eth/requirements.txt
View File

@ -1,4 +1,4 @@
celery==4.4.7
chainlib-eth>=0.0.9rc2,<0.1.0
chainlib-eth>=0.0.9rc4,<0.1.0
semver==2.13.0
crypto-dev-signer>=0.4.15rc2,<0.5.0

5
apps/cic-eth/services_requirements.txt
View File

@ -6,10 +6,11 @@ redis==3.5.3
hexathon~=0.0.1a8
pycryptodome==3.10.1
liveness~=0.0.1a7
eth-address-index>=0.2.3a4,<0.3.0
eth-address-index>=0.2.4a1,<0.3.0
eth-accounts-index>=0.1.2a3,<0.2.0
cic-eth-registry>=0.6.1a3,<0.7.0
cic-eth-registry>=0.6.1a5,<0.7.0
erc20-faucet>=0.3.2a2,<0.4.0
erc20-transfer-authorization>=0.3.5a2,<0.4.0
sarafu-faucet>=0.0.7a2,<0.1.0
moolb~=0.1.1b2
okota>=0.2.4a6,<0.3.0

193
apps/cic-eth/tests/task/api/test_app_noncritical.py
View File

@ -1,6 +1,27 @@
# standard imports
import logging
import os
import uuid
import time
import mmap
# external imports
import celery
import pytest
from hexathon import (
strip_0x,
uniform as hex_uniform,
)
# local imports
from cic_eth.api.api_task import Api
from cic_eth.task import BaseTask
from cic_eth.error import TrustError
from cic_eth.encode import tx_normalize
from cic_eth.pytest.mock.callback import CallbackTask
logg = logging.getLogger()
def test_default_token(
default_chain_spec,
@ -17,3 +38,175 @@ def test_default_token(
t = api.default_token()
r = t.get_leaf()
assert r['address'] == foo_token
def test_to_v_list():
assert Api.to_v_list('', 0) == []
assert Api.to_v_list([], 0) == []
assert Api.to_v_list('foo', 1) == [['foo']]
assert Api.to_v_list(['foo'], 1) == [['foo']]
assert Api.to_v_list(['foo', 'bar'], 2) == [['foo'], ['bar']]
assert Api.to_v_list('foo', 3) == [['foo'], ['foo'], ['foo']]
assert Api.to_v_list([['foo'], ['bar']], 2) == [['foo'], ['bar']]
with pytest.raises(ValueError):
Api.to_v_list([['foo'], ['bar']], 3)
with pytest.raises(ValueError):
Api.to_v_list(['foo', 'bar'], 3)
with pytest.raises(ValueError):
Api.to_v_list([['foo'], ['bar'], ['baz']], 2)
assert Api.to_v_list([
['foo'],
'bar',
['inky', 'pinky', 'blinky', 'clyde'],
], 3) == [
['foo'],
['bar'],
['inky', 'pinky', 'blinky', 'clyde'],
]
def test_token_single(
default_chain_spec,
foo_token,
bar_token,
token_registry,
register_tokens,
register_lookups,
cic_registry,
init_database,
init_celery_tasks,
custodial_roles,
foo_token_declaration,
bar_token_declaration,
celery_session_worker,
):
api = Api(str(default_chain_spec), queue=None, callback_param='foo')
t = api.token('FOO', proof=None)
r = t.get()
logg.debug('rr {}'.format(r))
assert len(r) == 1
assert r[0]['address'] == strip_0x(foo_token)
t = api.token('FOO', proof=foo_token_declaration)
r = t.get()
assert len(r) == 1
assert r[0]['address'] == strip_0x(foo_token)
def test_tokens_noproof(
default_chain_spec,
foo_token,
bar_token,
token_registry,
register_tokens,
register_lookups,
cic_registry,
init_database,
init_celery_tasks,
custodial_roles,
foo_token_declaration,
bar_token_declaration,
celery_worker,
):
api = Api(str(default_chain_spec), queue=None, callback_param='foo')
t = api.tokens(['FOO'], proof=[])
r = t.get()
assert len(r) == 1
assert r[0]['address'] == strip_0x(foo_token)
t = api.tokens(['BAR'], proof='')
r = t.get()
assert len(r) == 1
assert r[0]['address'] == strip_0x(bar_token)
t = api.tokens(['FOO'], proof=None)
r = t.get()
assert len(r) == 1
assert r[0]['address'] == strip_0x(foo_token)
def test_tokens(
default_chain_spec,
foo_token,
bar_token,
token_registry,
register_tokens,
register_lookups,
cic_registry,
init_database,
init_celery_tasks,
custodial_roles,
foo_token_declaration,
bar_token_declaration,
celery_session_worker,
):
api = Api(str(default_chain_spec), queue=None, callback_param='foo')
t = api.tokens(['FOO'], proof=[[foo_token_declaration]])
r = t.get()
logg.debug('rr {}'.format(r))
assert len(r) == 1
assert r[0]['address'] == strip_0x(foo_token)
t = api.tokens(['BAR', 'FOO'], proof=[[bar_token_declaration], [foo_token_declaration]])
r = t.get()
logg.debug('results {}'.format(r))
assert len(r) == 2
assert r[1]['address'] == strip_0x(foo_token)
assert r[0]['address'] == strip_0x(bar_token)
celery_app = celery.current_app
results = []
targets = []
api_param = str(uuid.uuid4())
api = Api(str(default_chain_spec), queue=None, callback_param=api_param, callback_task='cic_eth.pytest.mock.callback.test_callback')
bogus_proof = os.urandom(32).hex()
t = api.tokens(['FOO'], proof=[[bogus_proof]])
r = t.get()
logg.debug('r {}'.format(r))
while True:
fp = os.path.join(CallbackTask.mmap_path, api_param)
try:
f = open(fp, 'rb')
except FileNotFoundError:
time.sleep(0.1)
logg.debug('look for {}'.format(fp))
continue
f = open(fp, 'rb')
m = mmap.mmap(f.fileno(), access=mmap.ACCESS_READ, length=1)
v = m.read(1)
m.close()
f.close()
assert v == b'\x01'
break
api_param = str(uuid.uuid4())
api = Api(str(default_chain_spec), queue=None, callback_param=api_param, callback_task='cic_eth.pytest.mock.callback.test_callback')
t = api.tokens(['BAR'], proof=[[bar_token_declaration]])
r = t.get()
logg.debug('rr {} {}'.format(r, t.children))
while True:
fp = os.path.join(CallbackTask.mmap_path, api_param)
try:
f = open(fp, 'rb')
except FileNotFoundError:
time.sleep(0.1)
continue
m = mmap.mmap(f.fileno(), access=mmap.ACCESS_READ, length=1)
v = m.read(1)
m.close()
f.close()
assert v == b'\x00'
break

2
apps/cic-eth/tests/unit/admin/test_default_token.py
View File

@ -10,7 +10,7 @@ def test_default_token(
):
s = celery.signature(
'cic_eth.admin.token.default_token',
'cic_eth.eth.erc20.default_token',
[],
queue=None,
)

4
apps/cic-eth/tools_requirements.txt
View File

@ -1,6 +1,6 @@
crypto-dev-signer>=0.4.15a7,<=0.4.15
crypto-dev-signer>=0.4.15rc2,<=0.4.15
chainqueue>=0.0.5a1,<0.1.0
cic-eth-registry>=0.6.1a3,<0.7.0
cic-eth-registry>=0.6.1a5,<0.7.0
redis==3.5.3
hexathon~=0.0.1a8
pycryptodome==3.10.1

6
apps/contract-migration/requirements.txt
View File

@ -1,11 +1,11 @@
cic-eth[tools]==0.12.4a8
chainlib-eth>=0.0.9rc1,<0.1.0
cic-eth[tools]==0.12.4a11
chainlib-eth>=0.0.9rc4,<0.1.0
chainlib==0.0.9rc1,<0.1.0
eth-erc20>=0.1.2a3,<0.2.0
erc20-demurrage-token>=0.0.5a2,<0.1.0
#eth-accounts-index>=0.1.2a2,<0.2.0
eth-address-index>=0.2.4a1,<0.3.0
cic-eth-registry>=0.6.1a2,<0.7.0
cic-eth-registry>=0.6.1a5,<0.7.0
erc20-transfer-authorization>=0.3.5a2,<0.4.0
erc20-faucet>=0.3.2a2,<0.4.0
sarafu-faucet>=0.0.7a2,<0.1.0