def start_new_window(self, path, uri, *, app_is_starting=False):
'''Raises the window for the wallet if it is open. Otherwise
opens the wallet and creates a new window for it'''
wallet = None
try:
wallet = self.daemon.load_wallet(path, None)
except BaseException as e:
traceback.print_exc(file=sys.stdout)
QMessageBox.warning(None, _('Error'),
_('Cannot load wallet') + ' (1):\n' + str(e))
# if app is starting, still let wizard to appear
if not app_is_starting:
return
if not wallet:
wallet = self._start_wizard_to_select_or_create_wallet(path)
if not wallet:
return
# create or raise window
try:
for window in self.windows:
if window.wallet.storage.path == wallet.storage.path:
break
else:
window = self._create_window_for_wallet(wallet)
except BaseException as e:
traceback.print_exc(file=sys.stdout)
QMessageBox.warning(None, _('Error'),
_('Cannot create window for wallet') + ':\n' + str(e))
if app_is_starting:
wallet_dir = os.path.dirname(path)
path = os.path.join(wallet_dir, get_new_wallet_name(wallet_dir))
self.start_new_window(path, uri)
return
if uri:
window.pay_to_URI(uri)
window.bring_to_top()
window.setWindowState(window.windowState() & ~QtCore.Qt.WindowMinimized | QtCore.Qt.WindowActive)
window.activateWindow()
return window
def start_new_window(self, path, uri, app_is_starting=False):
'''Raises the window for the wallet if it is open. Otherwise
opens the wallet and creates a new window for it'''
try:
wallet = self.daemon.load_wallet(path, None)
except BaseException as e:
traceback.print_exc(file=sys.stdout)
d = QMessageBox(QMessageBox.Warning, _('Error'),
_('Cannot load wallet') + ' (1):\n' + str(e))
d.exec_()
if app_is_starting:
# do not return so that the wizard can appear
wallet = None
else:
return
if not wallet:
storage = WalletStorage(path, manual_upgrades=True)
wizard = InstallWizard(self.config, self.app, self.plugins,
storage)
try:
wallet = wizard.run_and_get_wallet(self.daemon.get_wallet)
except UserCancelled:
pass
except GoBack as e:
self.print_error(
'[start_new_window] Exception caught (GoBack)', e)
except (WalletFileException, BitcoinException) as e:
traceback.print_exc(file=sys.stderr)
d = QMessageBox(QMessageBox.Warning, _('Error'),
_('Cannot load wallet') + ' (2):\n' + str(e))
d.exec_()
return
finally:
wizard.terminate()
if not wallet:
return
if not self.daemon.get_wallet(wallet.storage.path):
# wallet was not in memory
wallet.start_network(self.daemon.network)
self.daemon.add_wallet(wallet)
try:
for w in self.windows:
if w.wallet.storage.path == wallet.storage.path:
break
else:
w = self.create_window_for_wallet(wallet)
except BaseException as e:
traceback.print_exc(file=sys.stdout)
d = QMessageBox(
QMessageBox.Warning, _('Error'),
_('Cannot create window for wallet') + ':\n' + str(e))
d.exec_()
if app_is_starting:
wallet_dir = os.path.dirname(path)
path = os.path.join(wallet_dir,
get_new_wallet_name(wallet_dir))
self.start_new_window(path, uri)
return
if uri:
w.pay_to_URI(uri)
w.bring_to_top()
w.setWindowState(w.windowState() & ~QtCore.Qt.WindowMinimized
| QtCore.Qt.WindowActive)
# this will activate the window
w.activateWindow()
return w
def select_storage(self, path, get_wallet_from_daemon) -> Tuple[str, Optional[WalletStorage]]:
vbox = QVBoxLayout()
hbox = QHBoxLayout()
hbox.addWidget(QLabel(_('Wallet') + ':'))
self.name_e = QLineEdit()
hbox.addWidget(self.name_e)
button = QPushButton(_('Choose...'))
hbox.addWidget(button)
vbox.addLayout(hbox)
self.msg_label = WWLabel('')
vbox.addWidget(self.msg_label)
hbox2 = QHBoxLayout()
self.pw_e = QLineEdit('', self)
self.pw_e.setFixedWidth(17 * char_width_in_lineedit())
self.pw_e.setEchoMode(2)
self.pw_label = QLabel(_('Password') + ':')
hbox2.addWidget(self.pw_label)
hbox2.addWidget(self.pw_e)
hbox2.addStretch()
vbox.addLayout(hbox2)
vbox.addSpacing(50)
vbox_create_new = QVBoxLayout()
vbox_create_new.addWidget(QLabel(_('Alternatively') + ':'), alignment=Qt.AlignLeft)
button_create_new = QPushButton(_('Create New Wallet'))
button_create_new.setMinimumWidth(120)
vbox_create_new.addWidget(button_create_new, alignment=Qt.AlignLeft)
widget_create_new = QWidget()
widget_create_new.setLayout(vbox_create_new)
vbox_create_new.setContentsMargins(0, 0, 0, 0)
vbox.addWidget(widget_create_new)
self.set_layout(vbox, title=_('Electrum wallet'))
temp_storage = None # type: Optional[WalletStorage]
wallet_folder = os.path.dirname(path)
def on_choose():
path, __ = QFileDialog.getOpenFileName(self, "Select your wallet file", wallet_folder)
if path:
self.name_e.setText(path)
def on_filename(filename):
# FIXME? "filename" might contain ".." (etc) and hence sketchy path traversals are possible
nonlocal temp_storage
temp_storage = None
msg = None
path = os.path.join(wallet_folder, filename)
wallet_from_memory = get_wallet_from_daemon(path)
try:
if wallet_from_memory:
temp_storage = wallet_from_memory.storage # type: Optional[WalletStorage]
else:
temp_storage = WalletStorage(path, manual_upgrades=True)
except (StorageReadWriteError, WalletFileException) as e:
msg = _('Cannot read file') + f'\n{repr(e)}'
except Exception as e:
self.logger.exception('')
msg = _('Cannot read file') + f'\n{repr(e)}'
self.next_button.setEnabled(temp_storage is not None)
user_needs_to_enter_password = False
if temp_storage:
if not temp_storage.file_exists():
msg =_("This file does not exist.") + '\n' \
+ _("Press 'Next' to create this wallet, or choose another file.")
elif not wallet_from_memory:
if temp_storage.is_encrypted_with_user_pw():
msg = _("This file is encrypted with a password.") + '\n' \
+ _('Enter your password or choose another file.')
user_needs_to_enter_password = True
elif temp_storage.is_encrypted_with_hw_device():
msg = _("This file is encrypted using a hardware device.") + '\n' \
+ _("Press 'Next' to choose device to decrypt.")
else:
msg = _("Press 'Next' to open this wallet.")
else:
msg = _("This file is already open in memory.") + "\n" \
+ _("Press 'Next' to create/focus window.")
if msg is None:
msg = _('Cannot read file')
self.msg_label.setText(msg)
widget_create_new.setVisible(bool(temp_storage and temp_storage.file_exists()))
if user_needs_to_enter_password:
self.pw_label.show()
self.pw_e.show()
self.pw_e.setFocus()
else:
self.pw_label.hide()
self.pw_e.hide()
button.clicked.connect(on_choose)
button_create_new.clicked.connect(
partial(
self.name_e.setText,
get_new_wallet_name(wallet_folder)))
self.name_e.textChanged.connect(on_filename)
self.name_e.setText(os.path.basename(path))
while True:
if self.loop.exec_() != 2: # 2 = next
raise UserCancelled
assert temp_storage
if temp_storage.file_exists() and not temp_storage.is_encrypted():
break
if not temp_storage.file_exists():
break
wallet_from_memory = get_wallet_from_daemon(temp_storage.path)
if wallet_from_memory:
raise WalletAlreadyOpenInMemory(wallet_from_memory)
if temp_storage.file_exists() and temp_storage.is_encrypted():
if temp_storage.is_encrypted_with_user_pw():
password = self.pw_e.text()
try:
temp_storage.decrypt(password)
break
except InvalidPassword as e:
self.show_message(title=_('Error'), msg=str(e))
continue
except BaseException as e:
self.logger.exception('')
self.show_message(title=_('Error'), msg=repr(e))
raise UserCancelled()
elif temp_storage.is_encrypted_with_hw_device():
try:
self.run('choose_hw_device', HWD_SETUP_DECRYPT_WALLET, storage=temp_storage)
except InvalidPassword as e:
self.show_message(title=_('Error'),
msg=_('Failed to decrypt using this hardware device.') + '\n' +
_('If you use a passphrase, make sure it is correct.'))
self.reset_stack()
return self.select_storage(path, get_wallet_from_daemon)
except BaseException as e:
self.logger.exception('')
self.show_message(title=_('Error'), msg=repr(e))
raise UserCancelled()
if temp_storage.is_past_initial_decryption():
break
else:
raise UserCancelled()
else:
raise Exception('Unexpected encryption version')
return temp_storage.path, (temp_storage if temp_storage.file_exists() else None)
def start_new_window(
self,
path,
uri: Optional[str],
*,
app_is_starting: bool = False,
force_wizard: bool = False,
) -> Optional[ElectrumWindow]:
'''Raises the window for the wallet if it is open. Otherwise
opens the wallet and creates a new window for it'''
wallet = None
# Try to open with daemon first. If this succeeds, there won't be a wizard at all
# (the wallet main window will appear directly).
if not force_wizard:
try:
wallet = self.daemon.load_wallet(path, None)
except Exception as e:
self.logger.exception('')
custom_message_box(icon=QMessageBox.Warning,
parent=None,
title=_('Error'),
text=_('Cannot load wallet') + ' (1):\n' +
repr(e))
# if app is starting, still let wizard appear
if not app_is_starting:
return
# Open a wizard window. This lets the user e.g. enter a password, or select
# a different wallet.
try:
if not wallet:
wallet = self._start_wizard_to_select_or_create_wallet(path)
if not wallet:
return
# create or raise window
for window in self.windows:
if window.wallet.storage.path == wallet.storage.path:
break
else:
window = self._create_window_for_wallet(wallet)
except Exception as e:
self.logger.exception('')
custom_message_box(icon=QMessageBox.Warning,
parent=None,
title=_('Error'),
text=_('Cannot load wallet') + '(2) :\n' +
repr(e))
if app_is_starting:
# If we raise in this context, there are no more fallbacks, we will shut down.
# Worst case scenario, we might have gotten here without user interaction,
# in which case, if we raise now without user interaction, the same sequence of
# events is likely to repeat when the user restarts the process.
# So we play it safe: clear path, clear uri, force a wizard to appear.
try:
wallet_dir = os.path.dirname(path)
filename = get_new_wallet_name(wallet_dir)
except OSError:
path = self.config.get_fallback_wallet_path()
else:
path = os.path.join(wallet_dir, filename)
self.start_new_window(path, uri=None, force_wizard=True)
return
if uri:
window.handle_payment_identifier(uri)
window.bring_to_top()
window.setWindowState(window.windowState() & ~QtCore.Qt.WindowMinimized
| QtCore.Qt.WindowActive)
window.activateWindow()
return window
