manager/qubesmanager/appmenu_select.py
Marta Marczykowska-Górecka 8eb61b11ae
Fixed VM settings to be more tolerant of missing permissions
Settings unavailable due to permissions will be unavailable in the tool,
but the tool will start and attempt to show as much as possible.
2020-08-08 15:37:09 +02:00

133 lines
4.8 KiB
Python
Executable File

#!/usr/bin/python2
#
# The Qubes OS Project, http://www.qubes-os.org
#
# Copyright (C) 2011 Marek Marczykowski <marmarek@mimuw.edu.pl>
#
# 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 subprocess
from PyQt5 import QtWidgets, QtCore # pylint: disable=import-error
from qubesadmin import exc
# TODO description in tooltip
# TODO icon
# pylint: disable=too-few-public-methods
class AppListWidgetItem(QtWidgets.QListWidgetItem):
def __init__(self, name, ident, tooltip=None, parent=None):
super(AppListWidgetItem, self).__init__(name, parent)
additional_description = ".desktop filename: " + str(ident)
if not tooltip:
tooltip = additional_description
else:
tooltip += "\n" + additional_description
self.setToolTip(tooltip)
self.ident = ident
@classmethod
def from_line(cls, line):
ident, name, comment = line.split('|', maxsplit=3)
return cls(name=name, ident=ident, tooltip=comment)
@classmethod
def from_ident(cls, ident):
name = 'Application missing in template! ({})'.format(ident)
comment = 'The listed application was available at some point to ' \
'this qube, but not any more. The most likely cause is ' \
'template change. Install the application in the template ' \
'if you want to restore it.'
return cls(name=name, ident=ident, tooltip=comment)
class AppmenuSelectManager:
def __init__(self, vm, apps_multiselect):
self.vm = vm
self.app_list = apps_multiselect # this is a multiselect wiget
self.whitelisted = None
self.has_missing = False
self.fill_apps_list(template=None)
def fill_apps_list(self, template=None):
try:
self.whitelisted = [line for line in subprocess.check_output(
['qvm-appmenus', '--get-whitelist', self.vm.name]
).decode().strip().split('\n') if line]
except exc.QubesException:
self.whitelisted = []
currently_selected = [
self.app_list.selected_list.item(i).ident
for i in range(self.app_list.selected_list.count())]
whitelist = set(self.whitelisted + currently_selected)
# Check if appmenu entry is really installed
# whitelisted = [a for a in whitelisted
# if os.path.exists('%s/apps/%s-%s' %
# (self.vm.dir_path, self.vm.name, a))]
self.app_list.clear()
command = ['qvm-appmenus', '--get-available',
'--i-understand-format-is-unstable', '--file-field',
'Comment']
if template:
command.extend(['--template', template.name])
command.append(self.vm.name)
try:
available_appmenus = [
AppListWidgetItem.from_line(line)
for line in subprocess.check_output(
command).decode().splitlines()]
except exc.QubesException:
available_appmenus = []
for app in available_appmenus:
if app.ident in whitelist:
self.app_list.selected_list.addItem(app)
whitelist.remove(app.ident)
else:
self.app_list.available_list.addItem(app)
self.has_missing = bool(whitelist)
for app in whitelist:
item = AppListWidgetItem.from_ident(app)
self.app_list.selected_list.addItem(item)
self.app_list.available_list.sortItems()
self.app_list.selected_list.sortItems()
def save_appmenu_select_changes(self):
new_whitelisted = [self.app_list.selected_list.item(i).ident
for i in range(self.app_list.selected_list.count())]
if set(new_whitelisted) == set(self.whitelisted):
return False
p = subprocess.Popen([
'qvm-appmenus', '--set-whitelist', '-', '--update', self.vm.name],
stdin=subprocess.PIPE)
p.communicate('\n'.join(new_whitelisted).encode())
if p.returncode != 0:
exception_text = QtCore.QCoreApplication.translate(
"Command {command} failed", "exception").format(
command='qvm-appmenus --set-whitelist')
raise RuntimeError(exception_text)
return True