72 lines
2.3 KiB
Python
72 lines
2.3 KiB
Python
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# standard imports
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import logging
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# third-party imports
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from crypto_dev_signer.eth.transaction import EIP155Transaction
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# local imports
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from crypto_dev_signer.error import TransactionRevertError
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logg = logging.getLogger()
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class TxExecutor:
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def __init__(self, sender, signer, dispatcher, reporter, nonce, chain_id, fee_helper, fee_price_helper, block=False):
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self.sender = sender
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self.nonce = nonce
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self.signer = signer
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self.dispatcher = dispatcher
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self.reporter = reporter
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self.block = bool(block)
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self.chain_id = chain_id
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self.tx_hashes = []
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self.fee_price_helper = fee_price_helper
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self.fee_helper = fee_helper
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def sign_and_send(self, builder, force_wait=False):
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fee_units = self.fee_helper(self.sender, None, None)
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tx_tpl = {
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'from': self.sender,
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'chainId': self.chain_id,
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'fee': fee_units,
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'feePrice': self.fee_price_helper(),
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'nonce': self.nonce,
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}
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tx = None
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for b in builder:
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tx = b(tx_tpl, tx)
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logg.debug('from {} nonce {} tx {}'.format(self.sender, self.nonce, tx))
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chain_tx = EIP155Transaction(tx, self.nonce, self.chain_id)
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signature = self.signer.signTransaction(chain_tx)
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chain_tx_serialized = chain_tx.rlp_serialize()
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tx_hash = self.dispatcher('0x' + chain_tx_serialized.hex())
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self.tx_hashes.append(tx_hash)
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self.nonce += 1
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rcpt = None
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if self.block or force_wait:
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rcpt = self.wait_for(tx_hash)
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logg.info('tx {} fee used: {}'.format(tx_hash.hex(), rcpt['feeUsed']))
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return (tx_hash.hex(), rcpt)
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def wait_for(self, tx_hash=None):
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if tx_hash == None:
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tx_hash = self.tx_hashes[len(self.tx_hashes)-1]
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i = 1
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while True:
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try:
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#return self.w3.eth.getTransactionReceipt(tx_hash)
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return self.reporter(tx_hash)
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except web3.exceptions.TransactionNotFound:
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logg.debug('poll #{} for {}'.format(i, tx_hash.hex()))
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i += 1
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time.sleep(1)
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if rcpt['status'] == 0:
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raise TransactionRevertError(tx_hash)
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return rcpt
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