339 lines
11 KiB
Python
339 lines
11 KiB
Python
# standard imports
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import logging
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import time
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import datetime
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# external imports
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from sqlalchemy import or_
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from sqlalchemy import not_
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from sqlalchemy import tuple_
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from sqlalchemy import func
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from hexathon import add_0x
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# local imports
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from chainqueue.db.models.otx import Otx
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from chainqueue.db.models.tx import TxCache
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from chainqueue.db.models.base import SessionBase
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from chainqueue.db.enum import status_str
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from chainqueue.db.enum import (
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StatusEnum,
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StatusBits,
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is_alive,
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dead,
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)
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from chainqueue.error import (
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NotLocalTxError,
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)
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logg = logging.getLogger().getChild(__name__)
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def get_tx_cache(chain_spec, tx_hash, session=None):
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"""Returns an aggregate dictionary of outgoing transaction data and metadata
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:param tx_hash: Transaction hash of record to modify
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:type tx_hash: str, 0x-hex
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:raises NotLocalTxError: If transaction not found in queue.
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:returns: Transaction data
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:rtype: dict
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"""
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session = SessionBase.bind_session(session)
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otx = Otx.load(tx_hash, session=session)
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if otx == None:
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SessionBase.release_session(session)
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raise NotLocalTxError(tx_hash)
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session.flush()
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q = session.query(TxCache)
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q = q.filter(TxCache.otx_id==otx.id)
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txc = q.first()
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# TODO: DRY, get_tx_cache / get_tx
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tx = {
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'tx_hash': add_0x(otx.tx_hash),
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'signed_tx': add_0x(otx.signed_tx),
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'nonce': otx.nonce,
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'status': status_str(otx.status),
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'status_code': otx.status,
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'source_token': add_0x(txc.source_token_address),
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'destination_token': add_0x(txc.destination_token_address),
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'block_number': otx.block,
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'tx_index': txc.tx_index,
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'sender': add_0x(txc.sender),
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'recipient': add_0x(txc.recipient),
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'from_value': int(txc.from_value),
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'to_value': int(txc.to_value),
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'date_created': txc.date_created,
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'date_updated': txc.date_updated,
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'date_checked': txc.date_checked,
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}
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SessionBase.release_session(session)
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return tx
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def get_tx(chain_spec, tx_hash, session=None):
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"""Retrieve a transaction queue record by transaction hash
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:param tx_hash: Transaction hash of record to modify
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:type tx_hash: str, 0x-hex
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:raises NotLocalTxError: If transaction not found in queue.
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:returns: nonce, address and signed_tx (raw signed transaction)
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:rtype: dict
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"""
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session = SessionBase.bind_session(session)
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otx = Otx.load(tx_hash, session=session)
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if otx == None:
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SessionBase.release_session(session)
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raise NotLocalTxError('queue does not contain tx hash {}'.format(tx_hash))
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o = {
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'otx_id': otx.id,
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'nonce': otx.nonce,
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'signed_tx': otx.signed_tx,
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'status': otx.status,
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}
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logg.debug('get tx {}'.format(o))
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SessionBase.release_session(session)
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return o
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def get_nonce_tx_cache(chain_spec, nonce, sender, decoder=None, session=None):
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"""Retrieve all transactions for address with specified nonce
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:param nonce: Nonce
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:type nonce: number
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:param address: Ethereum address
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:type address: str, 0x-hex
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:returns: Transactions
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:rtype: dict, with transaction hash as key, signed raw transaction as value
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"""
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session = SessionBase.bind_session(session)
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q = session.query(Otx)
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q = q.join(TxCache)
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q = q.filter(TxCache.sender==sender)
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q = q.filter(Otx.nonce==nonce)
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txs = {}
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for r in q.all():
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tx_signed_bytes = bytes.fromhex(r.signed_tx)
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if decoder != None:
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tx = decoder(tx_signed_bytes, chain_spec)
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if sender != None and tx['from'] != sender:
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raise IntegrityError('Cache sender {} does not match sender in tx {} using decoder {}'.format(sender, r.tx_hash, str(decoder)))
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txs[r.tx_hash] = r.signed_tx
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SessionBase.release_session(session)
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return txs
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def get_paused_tx_cache(chain_spec, status=None, sender=None, session=None, decoder=None):
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"""Returns not finalized transactions that have been attempted sent without success.
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:param status: If set, will return transactions with this local queue status only
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:type status: cic_eth.db.enum.StatusEnum
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:param recipient: Recipient address to return transactions for
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:type recipient: str, 0x-hex
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:param chain_id: Numeric chain id to use to parse signed transaction data
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:type chain_id: number
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:raises ValueError: Status is finalized, sent or never attempted sent
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:returns: Transactions
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:rtype: dict, with transaction hash as key, signed raw transaction as value
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"""
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session = SessionBase.bind_session(session)
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q = session.query(Otx)
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if status != None:
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if status == StatusEnum.PENDING or status & StatusBits.IN_NETWORK or not is_alive(status):
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SessionBase.release_session(session)
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raise ValueError('not a valid paused tx value: {}'.format(status))
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q = q.filter(Otx.status.op('&')(status.value)==status.value)
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q = q.join(TxCache)
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else:
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q = q.filter(Otx.status>StatusEnum.PENDING.value)
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q = q.filter(not_(Otx.status.op('&')(StatusBits.IN_NETWORK.value)>0))
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if sender != None:
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q = q.filter(TxCache.sender==sender)
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txs = {}
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gas = 0
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for r in q.all():
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tx_signed_bytes = bytes.fromhex(r.signed_tx)
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if decoder != None:
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tx = decoder(tx_signed_bytes, chain_spec)
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if sender != None and tx['from'] != sender:
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raise IntegrityError('Cache sender {} does not match sender in tx {} using decoder {}'.format(sender, r.tx_hash, str(decoder)))
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gas += tx['gas'] * tx['gasPrice']
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txs[r.tx_hash] = r.signed_tx
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SessionBase.release_session(session)
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return txs
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def get_status_tx_cache(chain_spec, status, not_status=None, before=None, exact=False, limit=0, session=None, decoder=None):
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"""Retrieve transaction with a specific queue status.
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:param status: Status to match transactions with
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:type status: str
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:param before: If set, return only transactions older than the timestamp
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:type status: datetime.dateTime
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:param limit: Limit amount of returned transactions
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:type limit: number
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:returns: Transactions
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:rtype: list of cic_eth.db.models.otx.Otx
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"""
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txs = {}
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session = SessionBase.bind_session(session)
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q = session.query(Otx)
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q = q.join(TxCache)
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if before != None:
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q = q.filter(Otx.date_updated<before)
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if exact:
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q = q.filter(Otx.status==status)
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else:
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q = q.filter(Otx.status.op('&')(status)>0)
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if not_status != None:
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q = q.filter(Otx.status.op('&')(not_status)==0)
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q = q.order_by(Otx.nonce.asc(), Otx.date_created.asc())
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i = 0
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for o in q.all():
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if limit > 0 and i == limit:
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break
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txs[o.tx_hash] = o.signed_tx
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i += 1
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SessionBase.release_session(session)
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return txs
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def get_upcoming_tx(chain_spec, status=StatusEnum.READYSEND, not_status=None, recipient=None, before=None, limit=0, session=None, decoder=None):
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"""Returns the next pending transaction, specifically the transaction with the lowest nonce, for every recipient that has pending transactions.
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Will omit addresses that have the LockEnum.SEND bit in Lock set.
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(TODO) Will not return any rows if LockEnum.SEND bit in Lock is set for zero address.
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:param status: Defines the status used to filter as upcoming.
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:type status: cic_eth.db.enum.StatusEnum
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:param recipient: Ethereum address of recipient to return transaction for
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:type recipient: str, 0x-hex
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:param before: Only return transactions if their modification date is older than the given timestamp
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:type before: datetime.datetime
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:param chain_id: Chain id to use to parse signed transaction data
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:type chain_id: number
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:raises ValueError: Status is finalized, sent or never attempted sent
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:returns: Transactions
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:rtype: dict, with transaction hash as key, signed raw transaction as value
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"""
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session = SessionBase.bind_session(session)
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q_outer = session.query(
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TxCache.sender,
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func.min(Otx.nonce).label('nonce'),
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)
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q_outer = q_outer.join(TxCache)
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if not is_alive(status):
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SessionBase.release_session(session)
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raise ValueError('not a valid non-final tx value: {}'.format(status))
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if status == StatusEnum.PENDING:
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q_outer = q_outer.filter(Otx.status==status.value)
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else:
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q_outer = q_outer.filter(Otx.status.op('&')(status)==status)
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if not_status != None:
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q_outer = q_outer.filter(Otx.status.op('&')(not_status)==0)
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if recipient != None:
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q_outer = q_outer.filter(TxCache.recipient==recipient)
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q_outer = q_outer.group_by(TxCache.sender)
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txs = {}
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i = 0
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for r in q_outer.all():
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q = session.query(Otx)
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q = q.join(TxCache)
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q = q.filter(TxCache.sender==r.sender)
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q = q.filter(Otx.nonce==r.nonce)
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if before != None:
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q = q.filter(TxCache.date_checked<before)
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q = q.order_by(TxCache.date_created.desc())
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o = q.first()
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# TODO: audit; should this be possible if a row is found in the initial query? If not, at a minimum log error.
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if o == None:
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continue
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tx_signed_bytes = bytes.fromhex(o.signed_tx[2:])
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tx = decoder(tx_signed_bytes, chain_spec)
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txs[o.tx_hash] = o.signed_tx
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q = session.query(TxCache)
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q = q.filter(TxCache.otx_id==o.id)
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o = q.first()
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o.date_checked = datetime.datetime.now()
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session.add(o)
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session.commit()
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i += 1
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if limit > 0 and limit == i:
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break
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SessionBase.release_session(session)
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return txs
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def get_account_tx(chain_spec, address, as_sender=True, as_recipient=True, counterpart=None, session=None):
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"""Returns all local queue transactions for a given Ethereum address
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:param address: Ethereum address
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:type address: str, 0x-hex
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:param as_sender: If False, will omit transactions where address is sender
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:type as_sender: bool
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:param as_sender: If False, will omit transactions where address is recipient
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:type as_sender: bool
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:param counterpart: Only return transactions where this Ethereum address is the other end of the transaction (not in use)
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:type counterpart: str, 0x-hex
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:raises ValueError: If address is set to be neither sender nor recipient
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:returns: Transactions
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:rtype: dict, with transaction hash as key, signed raw transaction as value
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"""
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if not as_sender and not as_recipient:
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raise ValueError('at least one of as_sender and as_recipient must be True')
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txs = {}
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session = SessionBase.bind_session(session)
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q = session.query(Otx)
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q = q.join(TxCache)
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if as_sender and as_recipient:
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q = q.filter(or_(TxCache.sender==address, TxCache.recipient==address))
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elif as_sender:
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q = q.filter(TxCache.sender==address)
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else:
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q = q.filter(TxCache.recipient==address)
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q = q.order_by(Otx.nonce.asc(), Otx.date_created.asc())
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results = q.all()
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for r in results:
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if txs.get(r.tx_hash) != None:
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logg.debug('tx {} already recorded'.format(r.tx_hash))
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continue
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txs[r.tx_hash] = r.signed_tx
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SessionBase.release_session(session)
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return txs
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