70 lines
2.3 KiB
Python
70 lines
2.3 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 chainlib.eth.constant import ZERO_ADDRESS
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from chainlib.eth.address import to_checksum_address
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from hexathon import (
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add_0x,
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strip_0x,
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)
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# local imports
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from .base import SyncFilter
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logg = logging.getLogger(__name__)
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account_registry_add_log_hash = '0x9cc987676e7d63379f176ea50df0ae8d2d9d1141d1231d4ce15b5965f73c9430'
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class RegistrationFilter(SyncFilter):
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def __init__(self, chain_spec, registry, queue, caller_address=ZERO_ADDRESS):
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super(RegistrationFilter, self).__init__(chain_spec, registry, queue, caller_address=caller_address)
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self.contract_address = registry.by_name('AccountRegistry', sender_address=caller_address)
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def filter(self, conn, block, tx, db_session=None):
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super(RegistrationFilter, self).filter(conn, block, tx, db_session)
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if self.contract_address != tx.inputs[0]:
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logg.debug('not an account registry tx; {} != {}'.format(self.contract_address, tx.inputs[0]))
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return None
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for l in tx.logs:
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event_topic_hex = l['topics'][0]
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if event_topic_hex == account_registry_add_log_hash:
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self.register_match()
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# TODO: use abi conversion method instead
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address_hex = strip_0x(l['topics'][1])[64-40:]
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address = to_checksum_address(add_0x(address_hex))
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s_nonce = celery.signature(
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'cic_eth.eth.nonce.reserve_nonce',
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[
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address,
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self.chain_spec.asdict(),
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],
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queue=self.queue,
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)
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s_gift = celery.signature(
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'cic_eth.eth.account.gift',
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[
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self.chain_spec.asdict(),
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],
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queue=self.queue,
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)
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s_nonce.link(s_gift)
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t = s_nonce.apply_async()
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logline = 'request token gift to {}'.format(address)
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logline = self.to_logline(block, tx, logline)
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logg.info(logline)
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return t
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def __str__(self):
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return 'registrationfilter'
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