70 lines
2.6 KiB
Python
70 lines
2.6 KiB
Python
# standard imports
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import logging
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# external imports
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import celery
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from eth_address_declarator import Declarator
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from chainlib.connection import RPCConnection
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from chainlib.chain import ChainSpec
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from cic_eth.db.models.role import AccountRole
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from cic_eth_registry import CICRegistry
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# local imports
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from cic_eth.task import BaseTask
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from cic_eth.error import TrustError
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celery_app = celery.current_app
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logg = logging.getLogger()
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@celery_app.task(bind=True, base=BaseTask)
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def verify_proofs(self, chained_input, chain_spec_dict, subjects, proofs):
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if not isinstance(subjects, list):
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raise ValueError('subjects argument must be list')
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if isinstance(proofs, str):
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proofs = [[proofs]]
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elif not isinstance(proofs, list):
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raise ValueError('proofs argument must be string or list')
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if len(proofs) != 1 and len(subjects) != len(proofs):
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raise ValueError('proof argument must be single proof or one proof input per subject')
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chain_spec = ChainSpec.from_dict(chain_spec_dict)
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rpc = RPCConnection.connect(chain_spec, 'default')
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declarator = Declarator(chain_spec)
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session = self.create_session()
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sender_address = AccountRole.get_address('DEFAULT', session)
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registry = CICRegistry(chain_spec, rpc)
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declarator_address = registry.by_name('AddressDeclarator', sender_address=sender_address)
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i = 0
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for proof in proofs:
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if not isinstance(proof, list):
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logg.debug('proof entry {} is not a list'.format(i))
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i += 1
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i = 0
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for subject in subjects:
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for trusted_address in self.trusted_addresses:
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proof_count = {}
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for proof in proofs[i]:
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o = declarator.declaration(declarator_address, trusted_address, subject, sender_address=sender_address)
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r = rpc.do(o)
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declarations = declarator.parse_declaration(r)
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logg.debug('comparing proof {} with declarations for {} by {}: {}'.format(proofs, subject, trusted_address, declarations))
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for declaration in declarations:
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if declaration == proof:
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logg.debug('have token proof {} match for trusted address {}'.format(declaration, trusted_address))
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if proof_count.get(proof) == None:
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proof_count[proof] = 0
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proof_count[proof] += 1
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for k in proof_count.keys():
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if proof_count[k] == 0:
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raise TrustError('no proof found for token {}'.format(subject))
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i += 1
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return chained_input
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