0bc8460005
(this somehow escaped attention before, as most objects usually don't have multiple instances, unless multiple wallets are open at the same time.) Also, move all signal declarations, class constants and variables to the top of class definitions.
297 lines
10 KiB
Python
297 lines
10 KiB
Python
import os
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from PyQt5.QtCore import Qt, QAbstractListModel, QModelIndex
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from PyQt5.QtCore import pyqtProperty, pyqtSignal, pyqtSlot, QObject
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from electrum.i18n import _
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from electrum.logging import get_logger
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from electrum.util import WalletFileException, standardize_path
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from electrum.wallet import Abstract_Wallet
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from electrum.plugin import run_hook
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from electrum.lnchannel import ChannelState
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from .auth import AuthMixin, auth_protect
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from .qefx import QEFX
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from .qewallet import QEWallet
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from .qewalletdb import QEWalletDB
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from .qewizard import QENewWalletWizard, QEServerConnectWizard
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# wallet list model. supports both wallet basenames (wallet file basenames)
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# and whole Wallet instances (loaded wallets)
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class QEWalletListModel(QAbstractListModel):
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_logger = get_logger(__name__)
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# define listmodel rolemap
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_ROLE_NAMES= ('name','path','active')
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_ROLE_KEYS = range(Qt.UserRole, Qt.UserRole + len(_ROLE_NAMES))
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_ROLE_MAP = dict(zip(_ROLE_KEYS, [bytearray(x.encode()) for x in _ROLE_NAMES]))
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def __init__(self, daemon, parent=None):
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QAbstractListModel.__init__(self, parent)
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self.daemon = daemon
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self.reload()
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def rowCount(self, index):
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return len(self.wallets)
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def roleNames(self):
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return self._ROLE_MAP
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def data(self, index, role):
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(wallet_name, wallet_path) = self.wallets[index.row()]
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role_index = role - Qt.UserRole
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role_name = self._ROLE_NAMES[role_index]
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if role_name == 'name':
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return wallet_name
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if role_name == 'path':
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return wallet_path
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if role_name == 'active':
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return self.daemon.get_wallet(wallet_path) is not None
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@pyqtSlot()
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def reload(self):
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self._logger.debug('enumerating available wallets')
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self.beginResetModel()
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self.wallets = []
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self.endResetModel()
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available = []
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wallet_folder = os.path.dirname(self.daemon.config.get_wallet_path())
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with os.scandir(wallet_folder) as it:
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for i in it:
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if i.is_file() and not i.name.startswith('.'):
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available.append(i.path)
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for path in sorted(available):
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wallet = self.daemon.get_wallet(path)
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self.add_wallet(wallet_path = path)
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def add_wallet(self, wallet_path):
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self.beginInsertRows(QModelIndex(), len(self.wallets), len(self.wallets))
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wallet_name = os.path.basename(wallet_path)
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wallet_path = standardize_path(wallet_path)
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item = (wallet_name, wallet_path)
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self.wallets.append(item)
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self.endInsertRows()
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def remove_wallet(self, path):
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i = 0
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wallets = []
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remove = -1
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for wallet_name, wallet_path in self.wallets:
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if wallet_path == path:
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remove = i
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else:
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self._logger.debug('HM, %s is not %s', wallet_path, path)
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wallets.append((wallet_name, wallet_path))
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i += 1
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if remove >= 0:
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self.beginRemoveRows(QModelIndex(), i, i)
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self.wallets = wallets
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self.endRemoveRows()
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def wallet_name_exists(self, name):
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for wallet_name, wallet_path in self.wallets:
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if name == wallet_name:
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return True
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return False
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@pyqtSlot(str)
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def updateWallet(self, path):
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i = 0
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for wallet_name, wallet_path in self.wallets:
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if wallet_path == path:
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mi = self.createIndex(i, i)
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self.dataChanged.emit(mi, mi, self._ROLE_KEYS)
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return
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i += 1
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class QEDaemon(AuthMixin, QObject):
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_logger = get_logger(__name__)
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_available_wallets = None
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_current_wallet = None
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_new_wallet_wizard = None
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_server_connect_wizard = None
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_path = None
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_use_single_password = False
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_password = None
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availableWalletsChanged = pyqtSignal()
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fxChanged = pyqtSignal()
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newWalletWizardChanged = pyqtSignal()
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serverConnectWizardChanged = pyqtSignal()
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walletLoaded = pyqtSignal()
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walletRequiresPassword = pyqtSignal()
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walletOpenError = pyqtSignal([str], arguments=["error"])
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walletDeleteError = pyqtSignal([str,str], arguments=['code', 'message'])
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def __init__(self, daemon, parent=None):
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super().__init__(parent)
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self.daemon = daemon
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self.qefx = QEFX(daemon.fx, daemon.config)
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self._walletdb = QEWalletDB()
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self._walletdb.validPasswordChanged.connect(self.passwordValidityCheck)
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@pyqtSlot()
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def passwordValidityCheck(self):
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if not self._walletdb._validPassword:
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self.walletRequiresPassword.emit()
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@pyqtSlot()
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@pyqtSlot(str)
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@pyqtSlot(str, str)
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def load_wallet(self, path=None, password=None):
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if path is None:
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self._path = self.daemon.config.get('wallet_path') # command line -w option
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if self._path is None:
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self._path = self.daemon.config.get('gui_last_wallet')
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else:
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self._path = path
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if self._path is None:
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return
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self._path = standardize_path(self._path)
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self._logger.debug('load wallet ' + str(self._path))
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if not password:
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password = self._password
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wallet_already_open = self._path in self.daemon._wallets
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if not wallet_already_open:
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# pre-checks, let walletdb trigger any necessary user interactions
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self._walletdb.path = self._path
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self._walletdb.password = password
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self._walletdb.verify()
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if not self._walletdb.ready:
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return
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try:
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wallet = self.daemon.load_wallet(self._path, password)
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if wallet is not None:
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self._current_wallet = QEWallet.getInstanceFor(wallet)
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if not wallet_already_open:
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self.availableWallets.updateWallet(self._path)
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self._current_wallet.password = password
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self.walletLoaded.emit()
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if self.daemon.config.get('single_password'):
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self._use_single_password = self.daemon.update_password_for_directory(old_password=password, new_password=password)
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self._password = password
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self.singlePasswordChanged.emit()
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self._logger.info(f'use single password: {self._use_single_password}')
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else:
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self._logger.info('use single password disabled by config')
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self.daemon.config.save_last_wallet(wallet)
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run_hook('load_wallet', wallet)
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else:
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self._logger.info('could not open wallet')
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self.walletOpenError.emit('could not open wallet')
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except WalletFileException as e:
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self._logger.error(str(e))
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self.walletOpenError.emit(str(e))
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@pyqtSlot(QEWallet)
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@pyqtSlot(QEWallet, bool)
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@pyqtSlot(QEWallet, bool, bool)
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def checkThenDeleteWallet(self, wallet, confirm_requests=False, confirm_balance=False):
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if wallet.wallet.lnworker:
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lnchannels = wallet.wallet.lnworker.get_channel_objects()
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if any([channel.get_state() != ChannelState.REDEEMED and not channel.is_backup() for channel in lnchannels.values()]):
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self.walletDeleteError.emit('unclosed_channels', _('There are still channels that are not fully closed'))
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return
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num_requests = len(wallet.wallet.get_unpaid_requests())
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if num_requests > 0 and not confirm_requests:
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self.walletDeleteError.emit('unpaid_requests', _('There are still unpaid requests. Really delete?'))
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return
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c, u, x = wallet.wallet.get_balance()
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if c+u+x > 0 and not wallet.wallet.is_watching_only() and not confirm_balance:
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self.walletDeleteError.emit('balance', _('There are still coins present in this wallet. Really delete?'))
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return
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self.delete_wallet(wallet)
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@auth_protect
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def delete_wallet(self, wallet):
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path = standardize_path(wallet.wallet.storage.path)
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self._logger.debug('deleting wallet with path %s' % path)
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self._current_wallet = None
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# TODO walletLoaded signal is confusing
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self.walletLoaded.emit()
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if not self.daemon.delete_wallet(path):
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self.walletDeleteError.emit('error', _('Problem deleting wallet'))
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return
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self.availableWallets.remove_wallet(path)
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@pyqtProperty('QString')
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def path(self):
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return self._path
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@pyqtProperty(QEWallet, notify=walletLoaded)
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def currentWallet(self):
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return self._current_wallet
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@pyqtProperty(QEWalletListModel, notify=availableWalletsChanged)
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def availableWallets(self):
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if not self._available_wallets:
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self._available_wallets = QEWalletListModel(self.daemon)
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return self._available_wallets
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@pyqtProperty(QEFX, notify=fxChanged)
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def fx(self):
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return self.qefx
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singlePasswordChanged = pyqtSignal()
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@pyqtProperty(bool, notify=singlePasswordChanged)
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def singlePasswordEnabled(self):
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return self._use_single_password
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@pyqtProperty(str, notify=singlePasswordChanged)
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def singlePassword(self):
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return self._password
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@pyqtSlot(result=str)
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def suggestWalletName(self):
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i = 1
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while self.availableWallets.wallet_name_exists(f'wallet_{i}'):
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i = i + 1
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return f'wallet_{i}'
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requestNewPassword = pyqtSignal()
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@pyqtSlot()
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@auth_protect
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def startChangePassword(self):
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if self._use_single_password:
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self.requestNewPassword.emit()
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else:
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self.currentWallet.requestNewPassword.emit()
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@pyqtSlot(str)
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def setPassword(self, password):
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assert self._use_single_password
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self._logger.debug('about to set password for ALL wallets')
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self.daemon.update_password_for_directory(old_password=self._password, new_password=password)
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self._password = password
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@pyqtProperty(QENewWalletWizard, notify=newWalletWizardChanged)
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def newWalletWizard(self):
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if not self._new_wallet_wizard:
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self._new_wallet_wizard = QENewWalletWizard(self)
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return self._new_wallet_wizard
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@pyqtProperty(QEServerConnectWizard, notify=serverConnectWizardChanged)
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def serverConnectWizard(self):
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if not self._server_connect_wizard:
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self._server_connect_wizard = QEServerConnectWizard(self)
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return self._server_connect_wizard
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