#!/usr/bin/python2 # # 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 General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. # # import sys import os import signal from PyQt4.QtCore import * from PyQt4.QtGui import * from qubes.qubes import QubesVmCollection from qubes.qubes import QubesException from qubes.qubes import QubesDaemonPidfile from qubes.qubes import QubesHost from qubes import qubesutils import qubesmanager.resources_rc from pyinotify import WatchManager, Notifier, ThreadedNotifier, EventsCodes, ProcessEvent import subprocess import time from thread_monitor import * from operator import itemgetter from datetime import datetime from string import replace from ui_backupdlg import * from multiselectwidget import * from backup_utils import * import grp,pwd class BackupVMsWindow(Ui_Backup, QWizard): __pyqtSignals__ = ("backup_progress(int)",) def __init__(self, app, qvm_collection, blk_manager, shutdown_vm_func, parent=None): super(BackupVMsWindow, self).__init__(parent) self.app = app self.qvm_collection = qvm_collection self.blk_manager = blk_manager self.shutdown_vm_func = shutdown_vm_func self.dev_mount_path = None self.backup_dir = None self.func_output = [] self.excluded = [] for vm in self.qvm_collection.values(): if vm.qid == 0: self.vm = vm break; assert self.vm != None self.setupUi(self) self.show_running_vms_warning(False) self.dir_line_edit.setReadOnly(True) self.select_vms_widget = MultiSelectWidget(self) self.verticalLayout.insertWidget(1, self.select_vms_widget) self.connect(self, SIGNAL("currentIdChanged(int)"), self.current_page_changed) self.connect(self.select_vms_widget, SIGNAL("selected_changed()"), self.check_running) self.connect(self.select_vms_widget, SIGNAL("items_removed(PyQt_PyObject)"), self.vms_removed) self.connect(self.select_vms_widget, SIGNAL("items_added(PyQt_PyObject)"), self.vms_added) self.refresh_button.clicked.connect(self.check_running) self.shutdown_running_vms_button.clicked.connect(self.shutdown_all_running_selected) self.connect(self.dev_combobox, SIGNAL("activated(int)"), self.dev_combobox_activated) self.connect(self, SIGNAL("backup_progress(int)"), self.progress_bar.setValue) self.select_vms_page.isComplete = self.has_selected_vms self.select_dir_page.isComplete = self.has_selected_dir #FIXME #this causes to run isComplete() twice, I don't know why self.select_vms_page.connect(self.select_vms_widget, SIGNAL("selected_changed()"), SIGNAL("completeChanged()")) self.total_size = 0 self.__fill_vms_list__() fill_devs_list(self) def show_running_vms_warning(self, show): self.running_vms_warning.setVisible(show) self.shutdown_running_vms_button.setVisible(show) self.refresh_button.setVisible(show) class VmListItem(QListWidgetItem): def __init__(self, vm): self.vm = vm if vm.qid == 0: local_user = grp.getgrnam('qubes').gr_mem[0] home_dir = pwd.getpwnam(local_user).pw_dir self.size = qubesutils.get_disk_usage(home_dir) else: self.size = self.get_vm_size(vm) super(BackupVMsWindow.VmListItem, self).__init__(vm.name+ " (" + qubesutils.size_to_human(self.size) + ")") def get_vm_size(self, vm): size = 0 if vm.private_img is not None: size += vm.get_disk_usage (vm.private_img) if vm.updateable: size += vm.get_disk_usage(vm.root_img) return size def __fill_vms_list__(self): for vm in self.qvm_collection.values(): if vm.is_appvm() and vm.internal: continue if vm.is_template() and vm.installed_by_rpm: continue item = BackupVMsWindow.VmListItem(vm) if vm.include_in_backups == True: self.select_vms_widget.selected_list.addItem(item) self.total_size += item.size else: self.select_vms_widget.available_list.addItem(item) self.check_running() self.total_size_label.setText(qubesutils.size_to_human(self.total_size)) def vms_added(self, items): for i in items: self.total_size += i.size self.total_size_label.setText(qubesutils.size_to_human(self.total_size)) def vms_removed(self, items): for i in items: self.total_size -= i.size self.total_size_label.setText(qubesutils.size_to_human(self.total_size)) def check_running(self): some_selected_vms_running = False for i in range(self.select_vms_widget.selected_list.count()): item = self.select_vms_widget.selected_list.item(i) if item.vm.is_running() and item.vm.qid != 0: item.setForeground(QBrush(QColor(255, 0, 0))) some_selected_vms_running = True else: item.setForeground(QBrush(QColor(0, 0, 0))) self.show_running_vms_warning(some_selected_vms_running) for i in range(self.select_vms_widget.available_list.count()): item = self.select_vms_widget.available_list.item(i) if item.vm.is_running() and item.vm.qid != 0: item.setForeground(QBrush(QColor(255, 0, 0))) else: item.setForeground(QBrush(QColor(0, 0, 0))) return some_selected_vms_running def shutdown_all_running_selected(self): (names, vms) = self.get_running_vms() if len(vms) == 0: return; for vm in vms: self.blk_manager.check_if_serves_as_backend(vm) reply = QMessageBox.question(None, "VM Shutdown Confirmation", "Are you sure you want to power down the following VMs: {0}?
" "This will shutdown all the running applications within them.".format(', '.join(names)), QMessageBox.Yes | QMessageBox.Cancel) self.app.processEvents() if reply == QMessageBox.Yes: wait_time = 60.0 for vm in vms: self.shutdown_vm_func(vm, wait_time*1000) progress = QProgressDialog ("Shutting down VMs {0}...".format(', '.join(names)), "", 0, 0) progress.setModal(True) progress.show() wait_for = wait_time while self.check_running() and wait_for > 0: self.app.processEvents() time.sleep (0.5) wait_for -= 0.5 progress.hide() def get_running_vms(self): names = [] vms = [] for i in range(self.select_vms_widget.selected_list.count()): item = self.select_vms_widget.selected_list.item(i) if item.vm.is_running() and item.vm.qid != 0: names.append(item.vm.name) vms.append(item.vm) return (names, vms) def dev_combobox_activated(self, idx): dev_combobox_activated(self, idx) @pyqtSlot(name='on_select_path_button_clicked') def select_path_button_clicked(self): select_path_button_clicked(self) def validateCurrentPage(self): if self.currentPage() is self.select_vms_page: for i in range(self.select_vms_widget.selected_list.count()): if self.check_running() == True: QMessageBox.information(None, "Wait!", "Some selected VMs are running. Running VMs can not be backuped. Please shut them down or remove them from the list.") return False del self.excluded[:] for i in range(self.select_vms_widget.available_list.count()): vmname = self.select_vms_widget.available_list.item(i).vm.name self.excluded.append(vmname) return True def gather_output(self, s): self.func_output.append(s) def update_progress_bar(self, value): if value == 100: self.emit(SIGNAL("backup_progress(int)"), value) def check_backup_progress(self, initial_usage, total_backup_size): du = qubesutils.get_disk_usage(self.backup_dir) done = du - initial_usage percent = int((float(done)/total_backup_size)*100) return percent def __do_backup__(self, thread_monitor): msg = [] try: qubesutils.backup_do(str(self.backup_dir), self.files_to_backup, self.update_progress_bar) #simulate_long_lasting_proces(10, self.update_progress_bar) except Exception as ex: msg.append(str(ex)) if len(msg) > 0 : thread_monitor.set_error_msg('\n'.join(msg)) thread_monitor.set_finished() def current_page_changed(self, id): if self.currentPage() is self.confirm_page: del self.func_output[:] try: self.files_to_backup = qubesutils.backup_prepare(str(self.backup_dir), exclude_list = self.excluded, print_callback = self.gather_output) except Exception as ex: QMessageBox.critical(None, "Error while prepering backup.", "ERROR: {0}".format(ex)) self.textEdit.setReadOnly(True) self.textEdit.setFontFamily("Monospace") self.textEdit.setText("\n".join(self.func_output)) elif self.currentPage() is self.commit_page: self.button(self.FinishButton).setDisabled(True) self.button(self.CancelButton).setDisabled(True) self.thread_monitor = ThreadMonitor() initial_usage = qubesutils.get_disk_usage(self.backup_dir) thread = threading.Thread (target= self.__do_backup__ , args=(self.thread_monitor,)) thread.daemon = True thread.start() self.button(self.CancelButton).setDisabled(False) counter = 0 while not self.thread_monitor.is_finished(): self.app.processEvents() time.sleep (0.1) counter += 1 if counter == 20: progress = self.check_backup_progress(initial_usage, self.total_size) self.progress_bar.setValue(progress) counter = 0 if not self.thread_monitor.success: QMessageBox.warning (None, "Backup error!", "ERROR: {1}".format(self.vm.name, self.thread_monitor.error_msg)) if self.dev_mount_path != None: umount_device(self.dev_mount_path) self.button(self.FinishButton).setEnabled(True) def reject(self): #cancell clicked while the backup is in progress. #calling kill on cp. if self.currentPage() is self.commit_page: manager_pid = os.getpid() cp_pid_cmd = ["ps" ,"--ppid", str(manager_pid)] pid = None while not self.thread_monitor.is_finished(): cp_pid = subprocess.Popen(cp_pid_cmd, stdout = subprocess.PIPE) output = cp_pid.stdout.read().split("\n") for l in output: if l.endswith("cp"): pid = l.split(" ")[1] break if pid != None: os.kill(int(pid), signal.SIGTERM) break if self.dev_mount_path != None: umount_device(self.dev_mount_path) self.done(0) def has_selected_vms(self): return self.select_vms_widget.selected_list.count() > 0 def has_selected_dir(self): return self.backup_dir != None # Bases on the original code by: # Copyright (c) 2002-2007 Pascal Varet def handle_exception( exc_type, exc_value, exc_traceback ): import sys import os.path import traceback filename, line, dummy, dummy = traceback.extract_tb( exc_traceback ).pop() filename = os.path.basename( filename ) error = "%s: %s" % ( exc_type.__name__, exc_value ) QMessageBox.critical(None, "Houston, we have a problem...", "Whoops. A critical error has occured. This is most likely a bug " "in Qubes Restore VMs application.

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

" % ( line, filename )) def main(): global qubes_host qubes_host = QubesHost() global app app = QApplication(sys.argv) app.setOrganizationName("The Qubes Project") app.setOrganizationDomain("http://qubes-os.org") app.setApplicationName("Qubes Backup VMs") sys.excepthook = handle_exception qvm_collection = QubesVmCollection() qvm_collection.lock_db_for_reading() qvm_collection.load() qvm_collection.unlock_db() global backup_window backup_window = BackupVMsWindow() backup_window.show() app.exec_() app.exit() if __name__ == "__main__": main()