#!/usr/bin/python2.6
#
# The Qubes OS Project, http://www.qubes-os.org
#
# Copyright (C) 2012 Agnieszka Kostrzewa <agnieszka.kostrzewa@gmail.com>
#
# 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
from PyQt4.QtCore import *
from PyQt4.QtGui import *
from pyinotify import WatchManager, Notifier, ThreadedNotifier, EventsCodes, ProcessEvent
import subprocess
import time
from thread_monitor import *
from datetime import datetime
from string import replace
mount_for_backup_path = '/usr/libexec/qubes-manager/mount_for_backup.sh'
def check_if_mounted(dev_path):
mounts_file = open("/proc/mounts")
for m in list(mounts_file):
if m.startswith(dev_path):
return m.split(" ")[1]
return None
def mount_device(dev_path):
try:
mount_dir_name = "backup" + replace(str(datetime.now()),' ', '-').split(".")[0]
pmount_cmd = [mount_for_backup_path, dev_path, mount_dir_name]
res = subprocess.check_call(pmount_cmd)
except Exception as ex:
QMessageBox.warning (None, "Error mounting selected device!", "<b>Could not mount {0}.</b><br><br>ERROR: {1}".format(dev_path, ex))
return None
if res == 0:
dev_mount_path = "/media/"+mount_dir_name
return dev_mount_path
return None
def umount_device(dev_mount_path):
while True:
try:
pumount_cmd = ["pumount", "--luks-force", dev_mount_path]
res = subprocess.check_call(pumount_cmd)
if res == 0:
if dev_mount_path.startswith('/media/backup'):
os.rmdir(dev_mount_path)
dev_mount_path = None
return dev_mount_path
except Exception as ex:
title = "Error unmounting backup device!"
text = "<b>Could not unmount {0}.</b><br>\
<b>Please retry or unmount it manually using</b><br> pumount {0}.<br><br>\
ERROR: {1}".format(dev_mount_path, ex)
button = QMessageBox.warning (None, title, text, QMessageBox.Ok | QMessageBox.Retry, QMessageBox.Retry)
if button == QMessageBox.Ok:
return dev_mount_path
def fill_devs_list(dialog):
dialog.dev_combobox.clear()
dialog.dev_combobox.addItem("None")
dialog.blk_manager.blk_lock.acquire()
for a in dialog.blk_manager.attached_devs:
if dialog.blk_manager.attached_devs[a]['attached_to']['vm'] == dialog.vm.name :
att = a + " " + unicode(dialog.blk_manager.attached_devs[a]['size']) + " " + dialog.blk_manager.attached_devs[a]['desc']
dialog.dev_combobox.addItem(att, QVariant(a))
for a in dialog.blk_manager.free_devs:
att = a + " " + unicode(dialog.blk_manager.free_devs[a]['size']) + " " + dialog.blk_manager.free_devs[a]['desc']
dialog.dev_combobox.addItem(att, QVariant(a))
dialog.blk_manager.blk_lock.release()
dialog.dev_combobox.setCurrentIndex(0) #current selected is null ""
dialog.prev_dev_idx = 0
dialog.dir_line_edit.clear()
enable_dir_line_edit(dialog, True)
def enable_dir_line_edit(dialog, boolean):
dialog.dir_line_edit.setEnabled(boolean)
dialog.select_path_button.setEnabled(boolean)
def dev_combobox_activated(dialog, idx):
if idx == dialog.prev_dev_idx: #nothing has changed
return
#there was a change
dialog.dir_line_edit.setText("")
dialog.backup_dir = None
if dialog.dev_mount_path != None:
dialog.dev_mount_path = umount_device(dialog.dev_mount_path)
if dialog.dev_mount_path != None:
dialog.dev_combobox.setCurrentIndex(dialog.prev_dev_idx)
return
if dialog.dev_combobox.currentText() != "None": #An existing device chosen
dev_name = str(dialog.dev_combobox.itemData(idx).toString())
dialog.blk_manager.blk_lock.acquire()
if dev_name in dialog.blk_manager.free_devs:
if dev_name.startswith(dialog.vm.name): # originally attached to dom0
dev_path = "/dev/"+dev_name.split(":")[1]
else: # originally attached to another domain, eg. usbvm
#attach it to dom0, then treat it as an attached device
dialog.blk_manager.attach_device(dialog.vm, dev_name)
dialog.blk_manager.update()
if dev_name in dialog.blk_manager.attached_devs: #is attached to dom0
assert dialog.blk_manager.attached_devs[dev_name]['attached_to']['vm'] == dialog.vm.name
dev_path = "/dev/" + dialog.blk_manager.attached_devs[dev_name]['attached_to']['frontend']
dialog.blk_manager.blk_lock.release()
#check if device mounted
dialog.dev_mount_path = check_if_mounted(dev_path)
if dialog.dev_mount_path == None:
dialog.dev_mount_path = mount_device(dev_path)
if dialog.dev_mount_path == None:
dialog.dev_combobox.setCurrentIndex(0) #if couldn't mount - set current device to "None"
dialog.prev_dev_idx = 0
return
dialog.prev_dev_idx = idx
# Initialize path with root of mounted device
dialog.dir_line_edit.setText(dialog.dev_mount_path)
dialog.backup_dir = dialog.dev_mount_path
dialog.select_dir_page.emit(SIGNAL("completeChanged()"))
def select_path_button_clicked(dialog):
dialog.backup_dir = dialog.dir_line_edit.text()
file_dialog = QFileDialog()
file_dialog.setReadOnly(True)
if dialog.dev_mount_path != None:
new_path = file_dialog.getExistingDirectory(dialog, "Select backup directory.", dialog.dev_mount_path)
else:
new_path = file_dialog.getExistingDirectory(dialog, "Select backup directory.", "~")
if new_path:
dialog.dir_line_edit.setText(new_path)
dialog.backup_dir = new_path
dialog.select_dir_page.emit(SIGNAL("completeChanged()"))
def simulate_long_lasting_proces(period, progress_callback):
for i in range(period):
progress_callback((i*100)/period)
time.sleep(1)
progress_callback(100)
return 0