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