302 lines
11 KiB
Python
302 lines
11 KiB
Python
#!/usr/bin/python3
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#
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# The Qubes OS Project, http://www.qubes-os.org
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#
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# Copyright (C) 2012 Agnieszka Kostrzewa <agnieszka.kostrzewa@gmail.com>
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# Copyright (C) 2012 Marek Marczykowski <marmarek@mimuw.edu.pl>
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public License along
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# with this program; if not, see <http://www.gnu.org/licenses/>.
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#
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#
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from PyQt5 import QtCore, QtWidgets, QtGui # pylint: disable=import-error
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import os
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import os.path
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import logging
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import logging.handlers
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from . import ui_restoredlg # pylint: disable=no-name-in-module
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from . import multiselectwidget
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from . import backup_utils
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from . import utils
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from multiprocessing import Queue
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from queue import Empty
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from qubesadmin import exc
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from qubesadmin.backup import restore
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# pylint: disable=too-few-public-methods
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class RestoreThread(QtCore.QThread):
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def __init__(self, backup_restore, vms_to_restore):
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QtCore.QThread.__init__(self)
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self.backup_restore = backup_restore
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self.vms_to_restore = vms_to_restore
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self.msg = None
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self.canceled = None
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def run(self):
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err_msg = []
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try:
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self.backup_restore.restore_do(self.vms_to_restore)
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except exc.BackupCancelledError as ex:
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self.canceled = True
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err_msg.append(str(ex))
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except Exception as ex: # pylint: disable=broad-except
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err_msg.append(str(ex))
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err_msg.append(
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self.tr("Partially restored files left in /var/tmp/restore_*, "
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"investigate them and/or clean them up"))
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if err_msg:
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self.msg = '\n'.join(err_msg)
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self.msg = '<b><font color="red">{0}</font></b>'.format(
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self.tr("Finished with errors!"))
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else:
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self.msg = '<font color="green">{0}</font>'.format(
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self.tr("Finished successfully!"))
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class RestoreVMsWindow(ui_restoredlg.Ui_Restore, QtWidgets.QWizard):
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def __init__(self, qt_app, qubes_app, parent=None):
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super(RestoreVMsWindow, self).__init__(parent)
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self.qt_app = qt_app
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self.qubes_app = qubes_app
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self.vms_to_restore = None
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self.func_output = []
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self.thread = None
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# Set up logging
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self.feedback_queue = Queue()
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handler = logging.handlers.QueueHandler(self.feedback_queue)
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logger = logging.getLogger('qubesadmin.backup')
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logger.addHandler(handler)
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logger.setLevel(logging.INFO)
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self.backup_restore = None
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self.target_appvm = None
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self.setupUi(self)
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self.dom0_restored_label.setVisible(False)
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self.select_vms_widget = multiselectwidget.MultiSelectWidget(self)
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self.select_vms_layout.insertWidget(1, self.select_vms_widget)
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self.currentIdChanged.connect(self.current_page_changed)
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self.dir_line_edit.textChanged.connect(self.backup_location_changed)
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self.select_dir_page.isComplete = self.has_selected_dir
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self.select_vms_page.isComplete = self.has_selected_vms
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self.confirm_page.isComplete = self.all_vms_good
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# FIXME
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# this causes to run isComplete() twice, I don't know why
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self.select_vms_widget.selectedChanged.connect(
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self.select_vms_page.completeChanged.emit)
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backup_utils.fill_appvms_list(self)
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def setup_application(self):
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self.qt_app.setApplicationName(self.tr("Qubes Restore VMs"))
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self.qt_app.setWindowIcon(QtGui.QIcon.fromTheme("qubes-manager"))
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@QtCore.pyqtSlot(name='on_select_path_button_clicked')
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def select_path_button_clicked(self):
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backup_utils.select_path_button_clicked(self, True)
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def cleanupPage(self, p_int): # pylint: disable=invalid-name
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if self.page(p_int) is self.select_vms_page:
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self.vms_to_restore = None
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else:
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super(RestoreVMsWindow, self).cleanupPage(p_int)
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def __fill_vms_list__(self):
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if self.vms_to_restore is not None:
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return
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self.select_vms_widget.selected_list.clear()
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self.select_vms_widget.available_list.clear()
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self.target_appvm = None
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if self.appvm_combobox.currentIndex() != 0: # An existing appvm chosen
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self.target_appvm = self.qubes_app.domains[
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str(self.appvm_combobox.currentText())]
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try:
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self.backup_restore = restore.BackupRestore(
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self.qubes_app,
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self.dir_line_edit.text(),
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self.target_appvm,
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self.passphrase_line_edit.text()
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)
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if self.ignore_missing.isChecked():
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self.backup_restore.options.use_default_template = True
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self.backup_restore.options.use_default_netvm = True
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if self.ignore_uname_mismatch.isChecked():
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self.backup_restore.options.ignore_username_mismatch = True
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if self.verify_only.isChecked():
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self.backup_restore.options.verify_only = True
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# pylint: disable=assignment-from-no-return
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self.vms_to_restore = self.backup_restore.get_restore_info()
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for vmname in self.vms_to_restore:
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if vmname.startswith('$'):
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# Internal info
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continue
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self.select_vms_widget.available_list.addItem(vmname)
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except exc.QubesException as ex:
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QtWidgets.QMessageBox.warning(
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self, self.tr("Restore error!"), str(ex))
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self.restart()
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def append_output(self, text):
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self.commit_text_edit.append(text)
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def current_page_changed(self, page_id): # pylint: disable=unused-argument
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if self.currentPage() is self.select_vms_page:
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self.__fill_vms_list__()
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elif self.currentPage() is self.confirm_page:
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# pylint: disable=assignment-from-no-return
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self.vms_to_restore = self.backup_restore.get_restore_info()
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for i in range(self.select_vms_widget.available_list.count()):
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vmname = self.select_vms_widget.available_list.item(i).text()
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del self.vms_to_restore[str(vmname)]
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if 'dom0' in self.vms_to_restore.keys():
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self.dom0_restored_label.setVisible(True)
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self.vms_to_restore = self.backup_restore.restore_info_verify(
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self.vms_to_restore)
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self.func_output = self.backup_restore.get_restore_summary(
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self.vms_to_restore
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)
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self.confirm_text_edit.setReadOnly(True)
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self.confirm_text_edit.setFontFamily("Monospace")
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self.confirm_text_edit.setText(self.func_output)
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self.confirm_page.completeChanged.emit()
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elif self.currentPage() is self.commit_page:
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self.button(self.FinishButton).setDisabled(True)
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self.showFileDialog.setEnabled(True)
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self.showFileDialog.setChecked(self.showFileDialog.isEnabled()
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and str(self.dir_line_edit.text())
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.count("media/") > 0)
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self.thread = RestoreThread(self.backup_restore,
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self.vms_to_restore)
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self.thread.finished.connect(self.thread_finished)
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# Start log timer
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timer = QtCore.QTimer(self)
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timer.timeout.connect(self.update_log)
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timer.start(1000)
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self.thread.start()
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def thread_finished(self):
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self.progress_bar.setMaximum(100)
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self.progress_bar.setValue(100)
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if self.thread.msg:
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QtWidgets.QMessageBox.warning(
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self,
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self.tr("Restore qubes"),
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self.tr(self.thread.msg))
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if self.thread.msg:
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self.append_output(self.thread.msg)
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if self.showFileDialog.isChecked():
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self.append_output(
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'<b><font color="black">{0}</font></b>'.format(
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self.tr("Please unmount your backup volume and cancel "
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"the file selection dialog.")))
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backup_utils.select_path_button_clicked(self, False, True)
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self.button(self.FinishButton).setEnabled(True)
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self.button(self.CancelButton).setEnabled(False)
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self.showFileDialog.setEnabled(False)
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def update_log(self):
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try:
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log_record = self.feedback_queue.get_nowait()
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while log_record:
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if log_record.levelno == logging.ERROR or\
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log_record.levelno == logging.CRITICAL:
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output = '<font color="red">{0}</font>'.format(
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log_record.getMessage())
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else:
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output = log_record.getMessage()
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self.append_output(output)
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log_record = self.feedback_queue.get_nowait()
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except Empty:
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pass
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def all_vms_good(self):
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for vm_info in self.vms_to_restore.values():
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if not vm_info.vm:
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continue
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if not vm_info.good_to_go:
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return False
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return True
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def reject(self):
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if self.currentPage() is self.commit_page and self.thread.isRunning():
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self.backup_restore.canceled = True
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self.append_output('<font color="red">{0}</font>'.format(
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self.tr("Aborting the operation...")))
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self.button(self.CancelButton).setDisabled(True)
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else:
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self.done(0)
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def has_selected_dir(self):
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backup_location = self.dir_line_edit.text()
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if not backup_location:
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return False
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if self.appvm_combobox.currentIndex() == 0:
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if os.path.isfile(backup_location) or \
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os.path.isfile(os.path.join(backup_location, 'qubes.xml')):
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return True
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else:
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return True
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return False
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def has_selected_vms(self):
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return self.select_vms_widget.selected_list.count() > 0
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def backup_location_changed(self, new_dir=None):
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# pylint: disable=unused-argument
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self.select_dir_page.completeChanged.emit()
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def main():
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utils.run_synchronous(RestoreVMsWindow)
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if __name__ == "__main__":
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main()
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