manager/qubesmanager/backup_utils.py
Marta Marczykowska-Górecka 7117892f4b
Fixed GUI Restore tool bug
GUI Restore tool was unable to open file selection dialog in dom0.

fixes QubesOS/qubes-issues#3701
2018-03-15 00:18:43 +01:00

144 lines
4.5 KiB
Python

#!/usr/bin/python2
#
# The Qubes OS Project, http://www.qubes-os.org
#
# Copyright (C) 2012 Agnieszka Kostrzewa <agnieszka.kostrzewa@gmail.com>
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License along
# with this program; if not, see <http://www.gnu.org/licenses/>.
#
#
import re
import socket
from PyQt4 import QtGui # pylint: disable=import-error
from PyQt4 import QtCore # pylint: disable=import-error
import subprocess
from . import utils
import yaml
path_re = re.compile(r"[a-zA-Z0-9/:.,_+=() -]*")
path_max_len = 512
def fill_appvms_list(dialog):
"""
Helper function, designed to fill the destination vm combobox in both backup
and restore GUI tools.
:param dialog: QtGui.QWizard with a combobox called appvm_combobox
"""
dialog.appvm_combobox.clear()
dialog.appvm_combobox.addItem("dom0")
dialog.appvm_combobox.setCurrentIndex(0) # current selected is null ""
for vm in dialog.qubes_app.domains:
if vm.features.get('internal', False) or vm.klass == 'TemplateVM':
continue
if vm.is_running() and vm.qid != 0:
dialog.appvm_combobox.addItem(vm.name)
def enable_dir_line_edit(dialog, boolean):
dialog.dir_line_edit.setEnabled(boolean)
dialog.select_path_button.setEnabled(boolean)
def select_path_button_clicked(dialog, select_file=False, read_only=False):
"""
Helper function that displays a file/directory selection wizard. Used by
backup and restore GUI tools.
:param dialog: QtGui.QWizard with a dir_line_edit text box that wants to
receive a file/directory path and appvm_combobox with VM to use
:param select_file: True: select file dialog; False: select directory
dialog
:param read_only: should the dir_line_edit be changed after selecting a file
or directory
:return:
"""
backup_location = str(dialog.dir_line_edit.text())
new_path = None
new_appvm = str(dialog.appvm_combobox.currentText())
vm = dialog.qubes_app.domains[new_appvm]
try:
if vm.name == socket.gethostname():
file_dialog = QtGui.QFileDialog()
file_dialog.setReadOnly(True)
if select_file:
file_dialog_function = file_dialog.getOpenFileName
else:
file_dialog_function = file_dialog.getExistingDirectory
new_path = file_dialog_function(
dialog,
dialog.tr("Select backup location."),
backup_location if backup_location else '/')
else:
new_path = utils.get_path_from_vm(
vm,
"qubes.SelectFile" if select_file
else "qubes.SelectDirectory")
except subprocess.CalledProcessError:
if not read_only:
QtGui.QMessageBox.warning(
None,
dialog.tr("Nothing selected!"),
dialog.tr("No file or directory selected."))
else:
return
if new_path and not read_only:
dialog.dir_line_edit.setText(new_path)
if new_path and backup_location and not read_only:
dialog.select_dir_page.emit(QtCore.SIGNAL("completeChanged()"))
def get_profile_name(use_temp):
backup_profile_name = 'qubes-manager-backup'
temp_backup_profile_name = 'qubes-manager-backup-tmp'
return temp_backup_profile_name if use_temp else backup_profile_name
def get_profile_path(use_temp):
path = '/etc/qubes/backup/' + get_profile_name(use_temp) + '.conf'
return path
def load_backup_profile(use_temp=False):
path = get_profile_path(use_temp)
with open(path) as profile_file:
profile_data = yaml.safe_load(profile_file)
return profile_data
def write_backup_profile(args, use_temp=False):
acceptable_fields = ['include', 'passphrase_text', 'compression',
'destination_vm', 'destination_path']
profile_data = {key: value for key, value in args.items()
if key in acceptable_fields}
path = get_profile_path(use_temp)
with open(path, 'w') as profile_file:
yaml.safe_dump(profile_data, profile_file)