#!/usr/bin/python3 # # The Qubes OS Project, http://www.qubes-os.org # # Copyright (C) 2012 Agnieszka Kostrzewa # Copyright (C) 2012 Marek Marczykowski # # 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 . # # import sys import os import os.path import traceback from PyQt4 import QtCore, QtGui # pylint: disable=import-error from qubesadmin import Qubes from qubesadmin.utils import parse_size from . import ui_globalsettingsdlg # pylint: disable=no-name-in-module from . import utils from configparser import ConfigParser qmemman_config_path = '/etc/qubes/qmemman.conf' # pylint: disable=too-many-instance-attributes class GlobalSettingsWindow(ui_globalsettingsdlg.Ui_GlobalSettings, QtGui.QDialog): def __init__(self, app, qvm_collection, parent=None): super(GlobalSettingsWindow, self).__init__(parent) self.app = app self.qvm_collection = qvm_collection self.setupUi(self) self.connect( self.buttonBox, QtCore.SIGNAL("accepted()"), self.save_and_apply) self.connect(self.buttonBox, QtCore.SIGNAL("rejected()"), self.reject) self.__init_system_defaults__() self.__init_kernel_defaults__() self.__init_mem_defaults__() self.__init_updates__() def __init_system_defaults__(self): # set up updatevm choice self.update_vm_vmlist, self.update_vm_idx = utils.prepare_vm_choice( self.update_vm_combo, self.qvm_collection, 'updatevm', None, allow_none=True ) # set up clockvm choice self.clock_vm_vmlist, self.clock_vm_idx = utils.prepare_vm_choice( self.clock_vm_combo, self.qvm_collection, 'clockvm', None, allow_none=True ) # set up default netvm self.default_netvm_vmlist, self.default_netvm_idx = \ utils.prepare_vm_choice( self.default_netvm_combo, self.qvm_collection, 'default_netvm', None, filter_function=(lambda vm: vm.provides_network), allow_none=True) # default template self.default_template_vmlist, self.default_template_idx = \ utils.prepare_vm_choice( self.default_template_combo, self.qvm_collection, 'default_template', None, filter_function=(lambda vm: vm.klass == 'TemplateVM') ) def __apply_system_defaults__(self): # upatevm if self.qvm_collection.updatevm != \ self.update_vm_vmlist[self.update_vm_combo.currentIndex()]: self.qvm_collection.updatevm = \ self.update_vm_vmlist[self.update_vm_combo.currentIndex()] # clockvm if self.qvm_collection.clockvm !=\ self.clock_vm_vmlist[self.clock_vm_combo.currentIndex()]: self.qvm_collection.clockvm = \ self.clock_vm_vmlist[self.clock_vm_combo.currentIndex()] # default netvm if self.qvm_collection.default_netvm !=\ self.default_netvm_vmlist[ self.default_netvm_combo.currentIndex()]: self.qvm_collection.default_netvm = \ self.default_netvm_vmlist[ self.default_netvm_combo.currentIndex()] # default template if self.qvm_collection.default_template != \ self.default_template_vmlist[ self.default_template_combo.currentIndex()]: self.qvm_collection.default_template = \ self.default_template_vmlist[ self.default_template_combo.currentIndex()] def __init_kernel_defaults__(self): self.kernels_list, self.kernels_idx = utils.prepare_kernel_choice( self.default_kernel_combo, self.qvm_collection, 'default_kernel', None, allow_none=True ) def __apply_kernel_defaults__(self): if self.qvm_collection.default_kernel != \ self.kernels_list[self.default_kernel_combo.currentIndex()]: self.qvm_collection.default_kernel = \ self.kernels_list[self.default_kernel_combo.currentIndex()] def __init_mem_defaults__(self): #qmemman settings self.qmemman_config = ConfigParser() self.vm_min_mem_val = '200MiB' #str(qmemman_algo.MIN_PREFMEM) self.dom0_mem_boost_val = '350MiB' #str(qmemman_algo.DOM0_MEM_BOOST) self.qmemman_config.read(qmemman_config_path) if self.qmemman_config.has_section('global'): self.vm_min_mem_val = \ self.qmemman_config.get('global', 'vm-min-mem') self.dom0_mem_boost_val = \ self.qmemman_config.get('global', 'dom0-mem-boost') self.vm_min_mem_val = parse_size(self.vm_min_mem_val) self.dom0_mem_boost_val = parse_size(self.dom0_mem_boost_val) self.min_vm_mem.setValue(self.vm_min_mem_val/1024/1024) self.dom0_mem_boost.setValue(self.dom0_mem_boost_val/1024/1024) def __apply_mem_defaults__(self): #qmemman settings current_min_vm_mem = self.min_vm_mem.value() current_dom0_mem_boost = self.dom0_mem_boost.value() if current_min_vm_mem*1024*1024 != self.vm_min_mem_val \ or current_dom0_mem_boost*1024*1024 != self.dom0_mem_boost_val: current_min_vm_mem = str(current_min_vm_mem)+'M' current_dom0_mem_boost = str(current_dom0_mem_boost)+'M' if not self.qmemman_config.has_section('global'): #add the whole section self.qmemman_config.add_section('global') self.qmemman_config.set( 'global', 'vm-min-mem', current_min_vm_mem) self.qmemman_config.set( 'global', 'dom0-mem-boost', current_dom0_mem_boost) self.qmemman_config.set( 'global', 'cache-margin-factor', str(1.3)) # removed qmemman_algo.CACHE_FACTOR qmemman_config_file = open(qmemman_config_path, 'a') self.qmemman_config.write(qmemman_config_file) qmemman_config_file.close() else: #If there already is a 'global' section, we don't use # SafeConfigParser.write() - it would get rid of # all the comments... lines_to_add = {} lines_to_add['vm-min-mem'] = \ "vm-min-mem = " + current_min_vm_mem + "\n" lines_to_add['dom0-mem-boost'] = \ "dom0-mem-boost = " + current_dom0_mem_boost +"\n" config_lines = [] qmemman_config_file = open(qmemman_config_path, 'r') for line in qmemman_config_file: if line.strip().startswith('vm-min-mem'): config_lines.append(lines_to_add['vm-min-mem']) del lines_to_add['vm-min-mem'] elif line.strip().startswith('dom0-mem-boost'): config_lines.append(lines_to_add['dom0-mem-boost']) del lines_to_add['dom0-mem-boost'] else: config_lines.append(line) qmemman_config_file.close() for line in lines_to_add: config_lines.append(line) qmemman_config_file = open(qmemman_config_path, 'w') qmemman_config_file.writelines(config_lines) qmemman_config_file.close() def __init_updates__(self): # TODO: remove workaround when it is no longer needed self.dom0_updates_file_path = '/var/lib/qubes/updates/disable-updates' try: self.updates_dom0_val = self.qvm_collection.check_updates_dom0 except AttributeError: self.updates_dom0_val =\ not os.path.isfile(self.dom0_updates_file_path) self.updates_dom0.setChecked(self.updates_dom0_val) self.updates_vm.setChecked(self.qvm_collection.check_updates_vm) self.enable_updates_all.clicked.connect(self.__enable_updates_all) self.disable_updates_all.clicked.connect(self.__disable_updates_all) def __enable_updates_all(self): reply = QtGui.QMessageBox.question( self, self.tr("Change state of all qubes"), self.tr("Are you sure you want to set all qubes to check " "for updates?"), QtGui.QMessageBox.Yes | QtGui.QMessageBox.Cancel) if reply == QtGui.QMessageBox.Cancel: return self.__set_updates_all(True) def __disable_updates_all(self): reply = QtGui.QMessageBox.question( self, self.tr("Change state of all qubes"), self.tr("Are you sure you want to set all qubes to not check " "for updates?"), QtGui.QMessageBox.Yes | QtGui.QMessageBox.Cancel) if reply == QtGui.QMessageBox.Cancel: return self.__set_updates_all(False) def __set_updates_all(self, state): for vm in self.qvm_collection.domains: vm.features['check-updates'] = state def __apply_updates__(self): if self.updates_dom0.isChecked() != self.updates_dom0_val: # TODO: remove workaround when it is no longer needed try: self.qvm_collection.check_updates_dom0 = \ self.updates_dom0.isChecked() except AttributeError: if self.updates_dom0.isChecked(): os.remove(self.dom0_updates_file_path) else: open(self.dom0_updates_file_path, 'a').close() self.qvm_collection.check_updates_vm = self.updates_vm.isChecked() def reject(self): self.done(0) def save_and_apply(self): self.__apply_system_defaults__() self.__apply_kernel_defaults__() self.__apply_mem_defaults__() self.__apply_updates__() # Bases on the original code by: # Copyright (c) 2002-2007 Pascal Varet def handle_exception(exc_type, exc_value, exc_traceback): filename, line, dummy, dummy = traceback.extract_tb(exc_traceback).pop() filename = os.path.basename(filename) error = "%s: %s" % (exc_type.__name__, exc_value) QtGui.QMessageBox.critical( None, "Houston, we have a problem...", "Whoops. A critical error has occured. This is most likely a bug " "in Qubes Global Settings application.

%s" % error + "at line %d of file %s.

" % (line, filename)) def main(): qtapp = QtGui.QApplication(sys.argv) qtapp.setOrganizationName("The Qubes Project") qtapp.setOrganizationDomain("http://qubes-os.org") qtapp.setApplicationName("Qubes Global Settings") sys.excepthook = handle_exception app = Qubes() global_window = GlobalSettingsWindow(qtapp, app) global_window.show() qtapp.exec_() qtapp.exit() if __name__ == "__main__": main()