597 lines
23 KiB
Python
597 lines
23 KiB
Python
import asyncio
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import queue
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import threading
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import time
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from typing import Optional, TYPE_CHECKING
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from PyQt5.QtCore import pyqtProperty, pyqtSignal, pyqtSlot, QObject, QTimer
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from electrum import bitcoin
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from electrum.i18n import _
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from electrum.invoices import InvoiceError, PR_DEFAULT_EXPIRATION_WHEN_CREATING
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from electrum.logging import get_logger
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from electrum.network import TxBroadcastError, BestEffortRequestFailed
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from electrum.transaction import PartialTxOutput
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from electrum.util import (parse_max_spend, InvalidPassword, event_listener)
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from .auth import AuthMixin, auth_protect
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from .qeaddresslistmodel import QEAddressListModel
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from .qechannellistmodel import QEChannelListModel
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from .qeinvoicelistmodel import QEInvoiceListModel, QERequestListModel
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from .qetransactionlistmodel import QETransactionListModel
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from .qetypes import QEAmount
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from .util import QtEventListener, qt_event_listener
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if TYPE_CHECKING:
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from electrum.wallet import Abstract_Wallet
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class QEWallet(AuthMixin, QObject, QtEventListener):
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__instances = []
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# this factory method should be used to instantiate QEWallet
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# so we have only one QEWallet for each electrum.wallet
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@classmethod
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def getInstanceFor(cls, wallet):
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for i in cls.__instances:
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if i.wallet == wallet:
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return i
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i = QEWallet(wallet)
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cls.__instances.append(i)
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return i
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_logger = get_logger(__name__)
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# emitted when wallet wants to display a user notification
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# actual presentation should be handled on app or window level
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userNotify = pyqtSignal(object, object)
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# shared signal for many static wallet properties
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dataChanged = pyqtSignal()
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isUptodateChanged = pyqtSignal()
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requestStatusChanged = pyqtSignal([str,int], arguments=['key','status'])
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requestCreateSuccess = pyqtSignal([str], arguments=['key'])
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requestCreateError = pyqtSignal([str,str], arguments=['code','error'])
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invoiceStatusChanged = pyqtSignal([str,int], arguments=['key','status'])
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invoiceCreateSuccess = pyqtSignal()
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invoiceCreateError = pyqtSignal([str,str], arguments=['code','error'])
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paymentSucceeded = pyqtSignal([str], arguments=['key'])
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paymentFailed = pyqtSignal([str,str], arguments=['key','reason'])
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requestNewPassword = pyqtSignal()
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transactionSigned = pyqtSignal([str], arguments=['txid'])
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#broadcastSucceeded = pyqtSignal([str], arguments=['txid'])
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broadcastFailed = pyqtSignal([str,str,str], arguments=['txid','code','reason'])
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labelsUpdated = pyqtSignal()
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_network_signal = pyqtSignal(str, object)
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_isUpToDate = False
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_synchronizing = False
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_synchronizing_progress = ''
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def __init__(self, wallet: 'Abstract_Wallet', parent=None):
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super().__init__(parent)
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self.wallet = wallet
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self._historyModel = None
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self._addressModel = None
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self._requestModel = None
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self._invoiceModel = None
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self._channelModel = None
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self.tx_notification_queue = queue.Queue()
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self.tx_notification_last_time = 0
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self.notification_timer = QTimer(self)
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self.notification_timer.setSingleShot(False)
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self.notification_timer.setInterval(500) # msec
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self.notification_timer.timeout.connect(self.notify_transactions)
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# To avoid leaking references to "self" that prevent the
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# window from being GC-ed when closed, callbacks should be
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# methods of this class only, and specifically not be
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# partials, lambdas or methods of subobjects. Hence...
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self.register_callbacks()
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self.destroyed.connect(lambda: self.on_destroy())
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@pyqtProperty(bool, notify=isUptodateChanged)
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def isUptodate(self):
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return self._isUpToDate
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synchronizingChanged = pyqtSignal()
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@pyqtProperty(bool, notify=synchronizingChanged)
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def synchronizing(self):
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return self._synchronizing
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@synchronizing.setter
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def synchronizing(self, synchronizing):
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if self._synchronizing != synchronizing:
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self._synchronizing = synchronizing
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self.synchronizingChanged.emit()
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synchronizingProgressChanged = pyqtSignal()
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@pyqtProperty(str, notify=synchronizingProgressChanged)
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def synchronizing_progress(self):
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return self._synchronizing_progress
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@synchronizing_progress.setter
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def synchronizing_progress(self, progress):
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if self._synchronizing_progress != progress:
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self._synchronizing_progress = progress
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self.synchronizingProgressChanged.emit()
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@event_listener
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def on_event_status(self):
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self._logger.debug('status')
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uptodate = self.wallet.is_up_to_date()
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if self._isUpToDate != uptodate:
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self._isUpToDate = uptodate
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self.isUptodateChanged.emit()
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if self.wallet.network.is_connected():
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server_height = self.wallet.network.get_server_height()
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server_lag = self.wallet.network.get_local_height() - server_height
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# Server height can be 0 after switching to a new server
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# until we get a headers subscription request response.
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# Display the synchronizing message in that case.
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if not self._isUpToDate or server_height == 0:
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num_sent, num_answered = self.wallet.adb.get_history_sync_state_details()
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self.synchronizing_progress = ("{} ({}/{})"
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.format(_("Synchronizing..."), num_answered, num_sent))
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self.synchronizing = True
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else:
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self.synchronizing_progress = ''
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self.synchronizing = False
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@event_listener
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def on_event_request_status(self, wallet, key, status):
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if wallet == self.wallet:
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self._logger.debug('request status %d for key %s' % (status, key))
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self.requestStatusChanged.emit(key, status)
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@event_listener
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def on_event_invoice_status(self, wallet, key):
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if wallet == self.wallet:
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self._logger.debug('invoice status update for key %s' % key)
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# FIXME event doesn't pass the new status, so we need to retrieve
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invoice = self.wallet.get_invoice(key)
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if invoice:
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status = self.wallet.get_invoice_status(invoice)
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self.invoiceStatusChanged.emit(key, status)
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else:
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self._logger.debug(f'No invoice found for key {key}')
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@qt_event_listener
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def on_event_new_transaction(self, wallet, tx):
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if wallet == self.wallet:
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self.add_tx_notification(tx)
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self.historyModel.init_model() # TODO: be less dramatic
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@qt_event_listener
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def on_event_verified(self, wallet, txid, info):
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if wallet == self.wallet:
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self.historyModel.update_tx(txid, info)
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@event_listener
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def on_event_wallet_updated(self, wallet):
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if wallet == self.wallet:
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self._logger.debug('wallet %s updated' % str(wallet))
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self.balanceChanged.emit()
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@event_listener
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def on_event_channel(self, wallet, channel):
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if wallet == self.wallet:
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self.balanceChanged.emit()
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@event_listener
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def on_event_channels_updated(self, wallet):
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if wallet == self.wallet:
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self.balanceChanged.emit()
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@qt_event_listener
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def on_event_payment_succeeded(self, wallet, key):
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if wallet == self.wallet:
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self.paymentSucceeded.emit(key)
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self.historyModel.init_model() # TODO: be less dramatic
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@event_listener
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def on_event_payment_failed(self, wallet, key, reason):
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if wallet == self.wallet:
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self.paymentFailed.emit(key, reason)
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def on_destroy(self):
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self.unregister_callbacks()
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def add_tx_notification(self, tx):
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self._logger.debug('new transaction event')
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self.tx_notification_queue.put(tx)
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if not self.notification_timer.isActive():
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self._logger.debug('starting wallet notification timer')
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self.notification_timer.start()
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def notify_transactions(self):
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if self.tx_notification_queue.qsize() == 0:
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self._logger.debug('queue empty, stopping wallet notification timer')
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self.notification_timer.stop()
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return
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if not self.wallet.is_up_to_date():
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return # no notifications while syncing
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now = time.time()
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rate_limit = 20 # seconds
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if self.tx_notification_last_time + rate_limit > now:
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return
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self.tx_notification_last_time = now
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self._logger.info("Notifying app about new transactions")
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txns = []
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while True:
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try:
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txns.append(self.tx_notification_queue.get_nowait())
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except queue.Empty:
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break
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config = self.wallet.config
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# Combine the transactions if there are at least three
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if len(txns) >= 3:
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total_amount = 0
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for tx in txns:
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tx_wallet_delta = self.wallet.get_wallet_delta(tx)
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if not tx_wallet_delta.is_relevant:
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continue
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total_amount += tx_wallet_delta.delta
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self.userNotify.emit(self.wallet, _("{} new transactions: Total amount received in the new transactions {}").format(len(txns), config.format_amount_and_units(total_amount)))
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else:
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for tx in txns:
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tx_wallet_delta = self.wallet.get_wallet_delta(tx)
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if not tx_wallet_delta.is_relevant:
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continue
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self.userNotify.emit(self.wallet,
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_("New transaction: {}").format(config.format_amount_and_units(tx_wallet_delta.delta)))
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historyModelChanged = pyqtSignal()
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@pyqtProperty(QETransactionListModel, notify=historyModelChanged)
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def historyModel(self):
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if self._historyModel is None:
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self._historyModel = QETransactionListModel(self.wallet)
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return self._historyModel
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addressModelChanged = pyqtSignal()
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@pyqtProperty(QEAddressListModel, notify=addressModelChanged)
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def addressModel(self):
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if self._addressModel is None:
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self._addressModel = QEAddressListModel(self.wallet)
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return self._addressModel
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requestModelChanged = pyqtSignal()
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@pyqtProperty(QERequestListModel, notify=requestModelChanged)
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def requestModel(self):
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if self._requestModel is None:
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self._requestModel = QERequestListModel(self.wallet)
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return self._requestModel
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invoiceModelChanged = pyqtSignal()
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@pyqtProperty(QEInvoiceListModel, notify=invoiceModelChanged)
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def invoiceModel(self):
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if self._invoiceModel is None:
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self._invoiceModel = QEInvoiceListModel(self.wallet)
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return self._invoiceModel
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channelModelChanged = pyqtSignal()
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@pyqtProperty(QEChannelListModel, notify=channelModelChanged)
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def channelModel(self):
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if self._channelModel is None:
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self._channelModel = QEChannelListModel(self.wallet)
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return self._channelModel
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nameChanged = pyqtSignal()
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@pyqtProperty(str, notify=nameChanged)
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def name(self):
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return self.wallet.basename()
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isLightningChanged = pyqtSignal()
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@pyqtProperty(bool, notify=isLightningChanged)
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def isLightning(self):
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return bool(self.wallet.lnworker)
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@pyqtProperty(bool, notify=dataChanged)
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def canHaveLightning(self):
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return self.wallet.can_have_lightning()
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@pyqtProperty(bool, notify=dataChanged)
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def hasSeed(self):
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return self.wallet.has_seed()
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@pyqtProperty(str, notify=dataChanged)
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def txinType(self):
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return self.wallet.get_txin_type(self.wallet.dummy_address())
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@pyqtProperty(bool, notify=dataChanged)
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def isWatchOnly(self):
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return self.wallet.is_watching_only()
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@pyqtProperty(bool, notify=dataChanged)
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def isDeterministic(self):
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return self.wallet.is_deterministic()
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@pyqtProperty(bool, notify=dataChanged)
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def isEncrypted(self):
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return self.wallet.storage.is_encrypted()
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@pyqtProperty(bool, notify=dataChanged)
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def isHardware(self):
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return self.wallet.storage.is_encrypted_with_hw_device()
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@pyqtProperty(str, notify=dataChanged)
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def derivationPrefix(self):
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keystores = self.wallet.get_keystores()
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if len(keystores) > 1:
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self._logger.debug('multiple keystores not supported yet')
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return keystores[0].get_derivation_prefix()
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@pyqtProperty(str, notify=dataChanged)
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def masterPubkey(self):
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return self.wallet.get_master_public_key()
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balanceChanged = pyqtSignal()
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@pyqtProperty(QEAmount, notify=balanceChanged)
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def frozenBalance(self):
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c, u, x = self.wallet.get_frozen_balance()
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self._frozenbalance = QEAmount(amount_sat=c+x)
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return self._frozenbalance
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@pyqtProperty(QEAmount, notify=balanceChanged)
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def unconfirmedBalance(self):
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self._unconfirmedbalance = QEAmount(amount_sat=self.wallet.get_balance()[1])
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return self._unconfirmedbalance
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@pyqtProperty(QEAmount, notify=balanceChanged)
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def confirmedBalance(self):
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c, u, x = self.wallet.get_balance()
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self._confirmedbalance = QEAmount(amount_sat=c+x)
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return self._confirmedbalance
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@pyqtProperty(QEAmount, notify=balanceChanged)
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def lightningBalance(self):
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if not self.isLightning:
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self._lightningbalance = QEAmount()
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else:
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self._lightningbalance = QEAmount(amount_sat=int(self.wallet.lnworker.get_balance()))
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return self._lightningbalance
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@pyqtProperty(QEAmount, notify=balanceChanged)
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def lightningCanSend(self):
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if not self.isLightning:
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self._lightningcansend = QEAmount()
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else:
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self._lightningcansend = QEAmount(amount_sat=int(self.wallet.lnworker.num_sats_can_send()))
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return self._lightningcansend
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@pyqtProperty(QEAmount, notify=balanceChanged)
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def lightningCanReceive(self):
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if not self.isLightning:
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self._lightningcanreceive = QEAmount()
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else:
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self._lightningcanreceive = QEAmount(amount_sat=int(self.wallet.lnworker.num_sats_can_receive()))
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return self._lightningcanreceive
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@pyqtSlot()
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def enableLightning(self):
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self.wallet.init_lightning(password=None) # TODO pass password if needed
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self.isLightningChanged.emit()
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@pyqtSlot(str, int, int, bool)
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def send_onchain(self, address, amount, fee=None, rbf=False):
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self._logger.info('send_onchain: %s %d' % (address,amount))
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coins = self.wallet.get_spendable_coins(None)
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if not bitcoin.is_address(address):
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self._logger.warning('Invalid Bitcoin Address: ' + address)
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return False
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outputs = [PartialTxOutput.from_address_and_value(address, amount)]
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self._logger.info(str(outputs))
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output_values = [x.value for x in outputs]
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if any(parse_max_spend(outval) for outval in output_values):
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output_value = '!'
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else:
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output_value = sum(output_values)
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self._logger.info(str(output_value))
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# see qt/confirm_tx_dialog qt/main_window
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tx = self.wallet.make_unsigned_transaction(coins=coins,outputs=outputs, fee=None)
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self._logger.info(str(tx.to_json()))
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use_rbf = bool(self.wallet.config.get('use_rbf', True))
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tx.set_rbf(use_rbf)
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self.sign(tx, broadcast=True)
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@auth_protect
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def sign(self, tx, *, broadcast: bool = False):
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tx = self.wallet.sign_transaction(tx, None)
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if tx is None:
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self._logger.info('did not sign')
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return
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txid = tx.txid()
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self._logger.debug(f'txid={txid}')
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self.transactionSigned.emit(txid)
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if not tx.is_complete():
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self._logger.info('tx not complete')
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return
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if broadcast:
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self.broadcast(tx)
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def broadcast(self, tx):
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assert tx.is_complete()
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self.network = self.wallet.network # TODO not always defined?
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try:
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self._logger.info('running broadcast in thread')
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self.network.run_from_another_thread(self.network.broadcast_transaction(tx))
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self._logger.info('broadcast submit done')
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except TxBroadcastError as e:
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self.broadcastFailed.emit(tx.txid(),'',repr(e))
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self._logger.error(e)
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except BestEffortRequestFailed as e:
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self.broadcastFailed.emit(tx.txid(),'',repr(e))
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self._logger.error(e)
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#TODO: properly catch server side errors, e.g. bad-txns-inputs-missingorspent
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#might need callback from network.py
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paymentAuthRejected = pyqtSignal()
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def ln_auth_rejected(self):
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self.paymentAuthRejected.emit()
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@pyqtSlot(str)
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@auth_protect(reject='ln_auth_rejected')
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def pay_lightning_invoice(self, invoice_key):
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self._logger.debug('about to pay LN')
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invoice = self.wallet.get_invoice(invoice_key)
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assert(invoice)
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assert(invoice.lightning_invoice)
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amount_msat = invoice.get_amount_msat()
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def pay_thread():
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try:
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coro = self.wallet.lnworker.pay_invoice(invoice.lightning_invoice, amount_msat=amount_msat)
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fut = asyncio.run_coroutine_threadsafe(coro, self.wallet.network.asyncio_loop)
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fut.result()
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except Exception as e:
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self.paymentFailed.emit(invoice.get_id(), repr(e))
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threading.Thread(target=pay_thread).start()
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def create_bitcoin_request(self, amount: int, message: str, expiration: int, ignore_gap: bool) -> Optional[str]:
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addr = self.wallet.get_unused_address()
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if addr is None:
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if not self.wallet.is_deterministic(): # imported wallet
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# TODO implement
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return
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#msg = [
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#_('No more addresses in your wallet.'), ' ',
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#_('You are using a non-deterministic wallet, which cannot create new addresses.'), ' ',
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#_('If you want to create new addresses, use a deterministic wallet instead.'), '\n\n',
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#_('Creating a new payment request will reuse one of your addresses and overwrite an existing request. Continue anyway?'),
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#]
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#if not self.question(''.join(msg)):
|
|
#return
|
|
#addr = self.wallet.get_receiving_address()
|
|
else: # deterministic wallet
|
|
if not ignore_gap:
|
|
self.requestCreateError.emit('gaplimit',_("Warning: The next address will not be recovered automatically if you restore your wallet from seed; you may need to add it manually.\n\nThis occurs because you have too many unused addresses in your wallet. To avoid this situation, use the existing addresses first.\n\nCreate anyway?"))
|
|
return
|
|
addr = self.wallet.create_new_address(False)
|
|
|
|
req_key = self.wallet.create_request(amount, message, expiration, addr)
|
|
#try:
|
|
#self.wallet.add_payment_request(req)
|
|
#except Exception as e:
|
|
#self.logger.exception('Error adding payment request')
|
|
#self.requestCreateError.emit('fatal',_('Error adding payment request') + ':\n' + repr(e))
|
|
#else:
|
|
## TODO: check this flow. Only if alias is defined in config. OpenAlias?
|
|
#pass
|
|
##self.sign_payment_request(addr)
|
|
|
|
return req_key, addr
|
|
|
|
@pyqtSlot(QEAmount, str, int)
|
|
@pyqtSlot(QEAmount, str, int, bool)
|
|
@pyqtSlot(QEAmount, str, int, bool, bool)
|
|
def createRequest(self, amount: QEAmount, message: str, expiration: int, is_lightning: bool = False, ignore_gap: bool = False):
|
|
# TODO: unify this method and create_bitcoin_request
|
|
try:
|
|
if is_lightning:
|
|
if not self.wallet.lnworker.channels:
|
|
self.requestCreateError.emit('fatal',_("You need to open a Lightning channel first."))
|
|
return
|
|
# TODO maybe show a warning if amount exceeds lnworker.num_sats_can_receive (as in kivy)
|
|
# TODO fallback address robustness
|
|
addr = self.wallet.get_unused_address()
|
|
key = self.wallet.create_request(amount.satsInt, message, expiration, addr)
|
|
else:
|
|
key, addr = self.create_bitcoin_request(amount.satsInt, message, expiration, ignore_gap)
|
|
if not key:
|
|
return
|
|
self.addressModel.init_model()
|
|
except InvoiceError as e:
|
|
self.requestCreateError.emit('fatal',_('Error creating payment request') + ':\n' + str(e))
|
|
return
|
|
|
|
assert key is not None
|
|
self.requestModel.add_invoice(self.wallet.get_request(key))
|
|
self.requestCreateSuccess.emit(key)
|
|
|
|
@pyqtSlot()
|
|
@pyqtSlot(bool)
|
|
def createDefaultRequest(self, ignore_gap: bool = False):
|
|
try:
|
|
default_expiry = self.wallet.config.get('request_expiry', PR_DEFAULT_EXPIRATION_WHEN_CREATING)
|
|
if self.wallet.lnworker and self.wallet.lnworker.channels:
|
|
addr = None
|
|
if self.wallet.config.get('bolt11_fallback', True):
|
|
addr = self.wallet.get_unused_address()
|
|
# if addr is None, we ran out of addresses. for lightning enabled wallets, ignore for now
|
|
key = self.wallet.create_request(None, None, default_expiry, addr)
|
|
else:
|
|
key, addr = self.create_bitcoin_request(None, None, default_expiry, ignore_gap)
|
|
if not key:
|
|
return
|
|
# self.addressModel.init_model()
|
|
except InvoiceError as e:
|
|
self.requestCreateError.emit('fatal',_('Error creating payment request') + ':\n' + str(e))
|
|
return
|
|
|
|
assert key is not None
|
|
self.requestModel.add_invoice(self.wallet.get_request(key))
|
|
self.requestCreateSuccess.emit(key)
|
|
|
|
@pyqtSlot(str)
|
|
def delete_request(self, key: str):
|
|
self._logger.debug('delete req %s' % key)
|
|
self.wallet.delete_request(key)
|
|
self.requestModel.delete_invoice(key)
|
|
|
|
@pyqtSlot(str, result='QVariant')
|
|
def get_request(self, key: str):
|
|
return self.requestModel.get_model_invoice(key)
|
|
|
|
@pyqtSlot(str)
|
|
def delete_invoice(self, key: str):
|
|
self._logger.debug('delete inv %s' % key)
|
|
self.wallet.delete_invoice(key)
|
|
self.invoiceModel.delete_invoice(key)
|
|
|
|
@pyqtSlot(str, result='QVariant')
|
|
def get_invoice(self, key: str):
|
|
return self.invoiceModel.get_model_invoice(key)
|
|
|
|
@pyqtSlot(str, result=bool)
|
|
def verify_password(self, password):
|
|
try:
|
|
self.wallet.storage.check_password(password)
|
|
return True
|
|
except InvalidPassword as e:
|
|
return False
|
|
|
|
@pyqtSlot(str)
|
|
def set_password(self, password):
|
|
storage = self.wallet.storage
|
|
|
|
# HW wallet not supported yet
|
|
if storage.is_encrypted_with_hw_device():
|
|
return
|
|
|
|
try:
|
|
self.wallet.update_password(self.password, password, encrypt_storage=True)
|
|
self.password = password
|
|
except InvalidPassword as e:
|
|
self._logger.exception(repr(e))
|