58 lines
1.6 KiB
Python
58 lines
1.6 KiB
Python
# standard imports
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import logging
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# third-party imports
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import celery
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from chainlib.eth.address import to_checksum
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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 = '0x5ed3bdd47b9af629827a8d129aa39c870b10c03f0153fe9ddb8e84b665061acd' # keccak256(AccountAdded(address,uint256))
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class RegistrationFilter(SyncFilter):
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def __init__(self, chain_spec, queue):
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self.chain_spec = chain_spec
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self.queue = queue
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def filter(self, conn, block, tx, db_session=None):
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registered_address = 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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# 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(add_0x(address_hex))
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logg.info('request token gift to {}'.format(address))
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s_nonce = celery.signature(
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'cic_eth.eth.tx.reserve_nonce',
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[
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address,
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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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str(self.chain_spec),
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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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s_nonce.apply_async()
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def __str__(self):
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return 'cic-eth account registration'
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