29ca4eb3a8
Simple design and better performance, just start() thread and finished call back will show any error or msg, stop progress dialog and do cleanup. Full remove of QT process_events() calls.
231 lines
8.1 KiB
Python
231 lines
8.1 KiB
Python
#!/usr/bin/python2
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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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# Copyright (C) 2017 Wojtek Porczyk <woju@invisiblethingslab.com>
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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 threading
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import time
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import subprocess
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from PyQt4 import QtCore, QtGui # pylint: disable=import-error
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import qubesadmin
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import qubesadmin.tools
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import qubesadmin.exc
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from . import utils
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from .ui_newappvmdlg import Ui_NewVMDlg # pylint: disable=import-error
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class CreateVMThread(QtCore.QThread):
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def __init__(self, app, vmclass, name, label, template, properties):
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QtCore.QThread.__init__(self)
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self.app = app
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self.vmclass = vmclass
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self.name = name
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self.label = label
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self.template = template
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self.properties = properties
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self.error = None
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def run(self):
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try:
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if self.vmclass == 'StandaloneVM' and self.template is not None:
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if self.template is qubesadmin.DEFAULT:
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src_vm = self.app.default_template
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else:
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src_vm = self.template
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vm = self.app.clone_vm(src_vm, self.name, self.vmclass)
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vm.label = self.label
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for k, v in self.properties.items():
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setattr(vm, k, v)
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else:
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vm = self.app.add_new_vm(self.vmclass,
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name=self.name, label=self.label, template=self.template)
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for k, v in self.properties.items():
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setattr(vm, k, v)
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except qubesadmin.exc.QubesException as qex:
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self.error = str(qex)
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except Exception as ex: # pylint: disable=broad-except
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self.error = repr(ex)
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class NewVmDlg(QtGui.QDialog, Ui_NewVMDlg):
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def __init__(self, qtapp, app, parent=None):
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super(NewVmDlg, self).__init__(parent)
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self.setupUi(self)
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self.qtapp = qtapp
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self.app = app
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# Theoretically we should be locking for writing here and unlock
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# only after the VM creation finished. But the code would be
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# more messy...
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# Instead we lock for writing in the actual worker thread
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self.label_list, self.label_idx = utils.prepare_label_choice(
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self.label,
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self.app, None,
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None,
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allow_default=False)
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self.template_list, self.template_idx = utils.prepare_vm_choice(
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self.template_vm,
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self.app, None,
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self.app.default_template,
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(lambda vm: vm.klass == 'TemplateVM'),
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allow_internal=False, allow_default=True, allow_none=False)
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self.netvm_list, self.netvm_idx = utils.prepare_vm_choice(
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self.netvm,
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self.app, None,
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self.app.default_netvm,
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(lambda vm: vm.provides_network),
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allow_internal=False, allow_default=True, allow_none=True)
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self.name.setValidator(QtGui.QRegExpValidator(
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QtCore.QRegExp("[a-zA-Z0-9_-]*", QtCore.Qt.CaseInsensitive), None))
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self.name.selectAll()
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self.name.setFocus()
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if not self.template_list:
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QtGui.QMessageBox.warning(None,
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self.tr('No template available!'),
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self.tr('Cannot create a qube when no template exists.'))
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# Order of types is important and used elsewhere; if it's changed
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# check for changes needed in self.type_change and TODO
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type_list = [self.tr("AppVM"),
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self.tr("Standalone qube based on a template"),
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self.tr("Standalone qube not based on a template")]
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self.vm_type.addItems(type_list)
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self.vm_type.currentIndexChanged.connect(self.type_change)
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self.launch_settings.stateChanged.connect(self.settings_change)
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self.install_system.stateChanged.connect(self.install_change)
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def reject(self):
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self.done(0)
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def accept(self):
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vmclass = ('AppVM' if self.vm_type.currentIndex() == 0
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else 'StandaloneVM')
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name = str(self.name.text())
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try:
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self.app.domains[name]
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except LookupError:
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pass
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else:
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QtGui.QMessageBox.warning(None,
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self.tr('Incorrect qube name!'),
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self.tr('A qube with the name <b>{}</b> already exists in the '
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'system!').format(name))
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return
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label = self.label_list[self.label.currentIndex()]
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if self.template_vm.currentIndex() == -1:
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template = None
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else:
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template = self.template_list[self.template_vm.currentIndex()]
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properties = {}
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properties['provides_network'] = self.provides_network.isChecked()
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properties['netvm'] = self.netvm_list[self.netvm.currentIndex()]
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if self.install_system.isChecked():
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properties['virt_mode'] = 'hvm'
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properties['kernel'] = None
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self.thread = CreateVMThread(self.app, vmclass, name, label,
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template, properties)
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self.thread.finished.connect(self.create_finished)
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self.thread.start()
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self.progress = QtGui.QProgressDialog(
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self.tr("Creating new qube <b>{}</b>...").format(name), "", 0, 0)
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self.progress.setCancelButton(None)
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self.progress.setModal(True)
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self.progress.show()
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def create_finished(self):
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self.progress.hide()
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if self.thread.error:
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QtGui.QMessageBox.warning(None,
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self.tr("Error creating the qube!"),
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self.tr("ERROR: {}").format(thread.error))
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self.done(0)
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if not self.thread.error:
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if self.launch_settings.isChecked():
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subprocess.check_call(['qubes-vm-settings', str(self.name)])
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if self.install_system.isChecked():
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subprocess.check_call(
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['qubes-vm-boot-from-device', srt(self.name)])
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def type_change(self):
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# AppVM
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if self.vm_type.currentIndex() == 0:
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self.template_vm.setEnabled(True)
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self.template_vm.setCurrentIndex(0)
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self.install_system.setEnabled(False)
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self.install_system.setChecked(False)
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# Standalone - based on a template
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if self.vm_type.currentIndex() == 1:
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self.template_vm.setEnabled(True)
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self.template_vm.setCurrentIndex(0)
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self.install_system.setEnabled(False)
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self.install_system.setChecked(False)
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# Standalone - not based on a template
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if self.vm_type.currentIndex() == 2:
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self.template_vm.setEnabled(False)
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self.template_vm.setCurrentIndex(-1)
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self.install_system.setEnabled(True)
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self.install_system.setChecked(True)
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def install_change(self):
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if self.install_system.isChecked():
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self.launch_settings.setChecked(False)
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def settings_change(self):
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if self.launch_settings.isChecked() and self.install_system.isEnabled():
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self.install_system.setChecked(False)
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parser = qubesadmin.tools.QubesArgumentParser()
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def main(args=None):
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args = parser.parse_args(args)
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qtapp = QtGui.QApplication(sys.argv)
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qtapp.setOrganizationName('Invisible Things Lab')
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qtapp.setOrganizationDomain('https://www.qubes-os.org/')
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qtapp.setApplicationName('Create qube')
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dialog = NewVmDlg(qtapp, args.app)
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dialog.exec_()
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