82 lines
2.5 KiB
Python
82 lines
2.5 KiB
Python
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# standard imports
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import logging
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# external imports
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from chainlib.eth.gas import price
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from chainlib.eth.tx import unpack
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from chaind.error import TxSourceError
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from crypto_dev_signer.eth.transaction import EIP155Transaction
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from chainlib.eth.gas import Gas
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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 chaind_eth.cli.tx import TxProcessor
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logg = logging.getLogger(__name__)
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DEFAULT_GAS_FACTOR = 1.1
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class Retrier:
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def __init__(self, sender, signer, source, chain_spec, gas_oracle, gas_factor=DEFAULT_GAS_FACTOR):
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self.sender = sender
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self.signer = signer
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self.source = source
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self.raw_content = []
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self.content = []
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self.cursor = 0
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self.gas_oracle = gas_oracle
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self.gas_factor = gas_factor
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self.chain_spec = chain_spec
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self.chain_id = chain_spec.chain_id()
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self.processor = [TxProcessor()]
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def load(self, process=True):
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for processor in self.processor:
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self.raw_content = processor.load(self.source)
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if self.raw_content != None:
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if process:
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#try:
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self.process()
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#except Exception as e:
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# raise TxSourceError('invalid source contents: {}'.format(str(e)))
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return self.content
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raise TxSourceError('unparseable source')
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def process(self):
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gas_data = self.gas_oracle.get_gas()
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gas_price = gas_data[0]
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for tx in self.raw_content:
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tx_bytes = bytes.fromhex(strip_0x(tx))
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tx = unpack(tx_bytes, self.chain_spec)
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tx_gas_price_old = int(tx['gasPrice'])
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if tx_gas_price_old < gas_price:
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tx['gasPrice'] = gas_price
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else:
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tx['gasPrice'] = int(tx_gas_price_old * self.gas_factor)
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if tx_gas_price_old == tx['gasPrice']:
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tx['gasPrice'] += 1
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tx_obj = EIP155Transaction(tx, tx['nonce'], self.chain_id)
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new_tx_bytes = self.signer.sign_transaction_to_wire(tx_obj)
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logg.debug('add tx {} with gas price changed from {} to {}: {}'.format(tx['hash'], tx_gas_price_old, tx['gasPrice'], new_tx_bytes.hex()))
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self.content.append(new_tx_bytes)
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def __iter__(self):
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self.cursor = 0
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return self
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def __next__(self):
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if self.cursor == len(self.content):
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raise StopIteration()
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tx = self.content[self.cursor]
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self.cursor += 1
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return tx
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