mirror of
https://git.wownero.com/lza_menace/wownero-python.git
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243 lines
8.3 KiB
Python
243 lines
8.3 KiB
Python
import re
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import six
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import warnings
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from .address import address
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from .numbers import PaymentID
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class Payment(object):
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"""
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A payment base class, representing payment not associated with any
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:class:`Account <monero.account.Account>`.
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This class is not intended to be turned into objects by the user,
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it is used by backends.
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"""
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payment_id = None
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amount = None
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timestamp = None
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transaction = None
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local_address = None
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note = ''
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_reprstr = "{} @ {} {:.12f} id={}"
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def __init__(self, **kwargs):
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self.amount = kwargs.pop('amount', self.amount)
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self.timestamp = kwargs.pop('timestamp', self.timestamp)
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self.payment_id = kwargs.pop('payment_id', self.payment_id)
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self.transaction = kwargs.pop('transaction', self.transaction)
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self.local_address = kwargs.pop('local_address', self.local_address)
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self.note = kwargs.pop('note', self.note)
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if len(kwargs):
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raise ValueError("Excessive arguments for {}: {}".format(type(self), kwargs))
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def __repr__(self):
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return self._reprstr.format(
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self.transaction.hash, self.transaction.height or 'pool', self.amount, self.payment_id)
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class IncomingPayment(Payment):
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"""
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An incoming payment (one that increases the balance of an
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:class:`Account <monero.account.Account>`)
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"""
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_reprstr = "in: {} @ {} {:.12f} id={}"
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class OutgoingPayment(Payment):
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"""
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An outgoing payment (one that decreases the balance of an
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:class:`Account <monero.account.Account>`)
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"""
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destinations = None
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def __init__(self, **kwargs):
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self.destinations = kwargs.pop('destinations', [])
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super(OutgoingPayment, self).__init__(**kwargs)
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_reprstr = "out: {} @ {} {:.12f} id={}"
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class Transaction(object):
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"""
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A Monero transaction. Identified by `hash`, it can be a part of a block of some `height`
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or not yet mined (`height` is `None` then).
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This class is not intended to be turned into objects by the user,
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it is used by backends.
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"""
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hash = None
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fee = None
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height = None
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timestamp = None
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key = None
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blob = None
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json = None
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confirmations = None
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@property
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def size(self):
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return len(self.blob)//2
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def __init__(self, **kwargs):
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self.hash = kwargs.get('hash', self.hash)
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self.fee = kwargs.get('fee', self.fee)
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self.height = kwargs.get('height', self.height)
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self.timestamp = kwargs.get('timestamp', self.timestamp)
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self.key = kwargs.get('key', self.key)
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self.blob = kwargs.get('blob', self.blob)
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self.json = kwargs.get('json', self.json)
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self.confirmations = kwargs.get('confirmations', self.confirmations)
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def __repr__(self):
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return self.hash
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class PaymentManager(object):
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"""
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A payment query manager, handling either incoming or outgoing payments of
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an :class:`Account <monero.account.Account>`.
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This class is not intended to be turned into objects by the user,
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it is used by backends.
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"""
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account_idx = 0
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backend = None
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def __init__(self, account_idx, backend, direction):
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self.account_idx = account_idx
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self.backend = backend
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self.direction = direction
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def __call__(self, **filterparams):
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fetch = self.backend.transfers_in if self.direction == 'in' else self.backend.transfers_out
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return fetch(self.account_idx, PaymentFilter(**filterparams))
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def _validate_tx_id(txid):
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if not bool(re.compile('^[0-9a-f]{64}$').match(txid)):
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raise ValueError("Transaction ID must be a 64-character hexadecimal string, not "
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"'{}'".format(txid))
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return txid
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class _ByHeight(object):
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"""A helper class used as key in sorting of payments by height.
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Mempool goes on top, blockchain payments are ordered with descending block numbers.
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**WARNING:** Integer sorting is reversed here.
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"""
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def __init__(self, pmt):
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self.pmt = pmt
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def _cmp(self, other):
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sh = self.pmt.transaction.height
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oh = other.pmt.transaction.height
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if sh is oh is None:
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return 0
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if sh is None:
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return 1
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if oh is None:
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return -1
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return (sh > oh) - (sh < oh)
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def __lt__(self, other):
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return self._cmp(other) > 0
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def __le__(self, other):
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return self._cmp(other) >= 0
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def __eq__(self, other):
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return self._cmp(other) == 0
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def __ge__(self, other):
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return self._cmp(other) <= 0
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def __gt__(self, other):
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return self._cmp(other) < 0
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def __ne__(self, other):
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return self._cmp(other) != 0
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class PaymentFilter(object):
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"""
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A helper class that filters payments retrieved by the backend.
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This class is not intended to be turned into objects by the user,
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it is used by backends.
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"""
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def __init__(self, **filterparams):
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self.min_height = filterparams.pop('min_height', None)
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self.max_height = filterparams.pop('max_height', None)
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self.unconfirmed = filterparams.pop('unconfirmed', False)
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self.confirmed = filterparams.pop('confirmed', True)
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_local_address = filterparams.pop('local_address', None)
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_tx_id = filterparams.pop('tx_id', None)
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_payment_id = filterparams.pop('payment_id', None)
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if len(filterparams) > 0:
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raise ValueError("Excessive arguments for payment query: {}".format(filterparams))
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if self.unconfirmed and (self.min_height is not None or self.max_height is not None):
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warnings.warn("Height filtering (min_height/max_height) has been requested while "
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"also asking for unconfirmed transactions. These are mutually exclusive. "
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"As mempool transactions have no height at all, they will be excluded "
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"from the result.",
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RuntimeWarning)
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if _local_address is None:
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self.local_addresses = []
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else:
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if isinstance(_local_address, six.string_types) \
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or isinstance(_local_address, six.text_type):
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local_addresses = [_local_address]
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else:
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try:
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iter(_local_address)
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local_addresses = _local_address
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except TypeError:
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local_addresses = [_local_address]
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self.local_addresses = list(map(address, local_addresses))
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if _tx_id is None:
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self.tx_ids = []
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else:
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if isinstance(_tx_id, six.string_types) or isinstance(_tx_id, six.text_type):
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tx_ids = [_tx_id]
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else:
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try:
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iter(_tx_id)
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tx_ids = _tx_id
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except TypeError:
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tx_ids = [_tx_id]
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self.tx_ids = list(map(_validate_tx_id, tx_ids))
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if _payment_id is None:
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self.payment_ids = []
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else:
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if isinstance(_payment_id, six.string_types) or isinstance(_payment_id, six.text_type):
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payment_ids = [_payment_id]
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else:
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try:
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iter(_payment_id)
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payment_ids = _payment_id
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except TypeError:
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payment_ids = [_payment_id]
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self.payment_ids = list(map(PaymentID, payment_ids))
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def check(self, payment):
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ht = payment.transaction.height
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if ht is None:
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if not self.unconfirmed:
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return False
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if self.min_height is not None or self.max_height is not None:
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# mempool txns are filtered out if any height range check is present
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return False
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else:
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if not self.confirmed:
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return False
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if self.min_height is not None and ht < self.min_height:
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return False
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if self.max_height is not None and ht > self.max_height:
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return False
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if self.payment_ids and payment.payment_id not in self.payment_ids:
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return False
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if self.tx_ids and payment.transaction.hash not in self.tx_ids:
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return False
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if self.local_addresses and payment.local_address not in self.local_addresses:
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return False
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return True
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def filter(self, payments):
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return sorted(
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filter(self.check, payments),
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key=_ByHeight)
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