160 lines
5.6 KiB
Python
160 lines
5.6 KiB
Python
#!/usr/bin/python2.6
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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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#
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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 General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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#
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#
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import sys
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import os
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from PyQt4.QtCore import *
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from PyQt4.QtGui import *
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from pyinotify import WatchManager, Notifier, ThreadedNotifier, EventsCodes, ProcessEvent
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import subprocess
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import time
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from thread_monitor import *
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from datetime import datetime
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from string import replace
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def check_if_mounted(dev_path):
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mounts_file = open("/proc/mounts")
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for m in list(mounts_file):
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if m.startswith(dev_path):
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return m.split(" ")[1]
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return None
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def mount_device(dev_path):
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try:
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mount_dir_name = "backup" + replace(str(datetime.now()),' ', '-').split(".")[0]
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pmount_cmd = ["pmount", dev_path, mount_dir_name]
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res = subprocess.check_call(pmount_cmd)
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except Exception as ex:
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QMessageBox.warning (None, "Error mounting selected device!", "ERROR: {0}".format(ex))
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return None
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if res == 0:
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dev_mount_path = "/media/"+mount_dir_name
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return dev_mount_path
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return None
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def umount_device(dev_mount_path):
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try:
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pumount_cmd = ["pumount", dev_mount_path]
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res = subprocess.check_call(pumount_cmd)
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if res == 0:
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dev_mount_path = None
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except Exception as ex:
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QMessageBox.warning (None, "Could not unmount backup device!", "ERROR: {0}".format(ex))
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return dev_mount_path
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def fill_devs_list(dialog):
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dialog.dev_combobox.clear()
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dialog.dev_combobox.addItem("None")
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for a in dialog.blk_manager.attached_devs:
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if dialog.blk_manager.attached_devs[a]['attached_to']['vm'] == dialog.vm.name :
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att = a + " " + unicode(dialog.blk_manager.attached_devs[a]['size']) + " " + dialog.blk_manager.attached_devs[a]['desc']
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dialog.dev_combobox.addItem(att, QVariant(a))
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for a in dialog.blk_manager.free_devs:
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att = a + " " + unicode(dialog.blk_manager.free_devs[a]['size']) + " " + dialog.blk_manager.free_devs[a]['desc']
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dialog.dev_combobox.addItem(att, QVariant(a))
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dialog.dev_combobox.setCurrentIndex(0) #current selected is null ""
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dialog.prev_dev_idx = 0
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dialog.dir_line_edit.clear()
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dialog.dir_line_edit.setEnabled(False)
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dialog.select_path_button.setEnabled(False)
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def enable_dir_line_edit(dialog, boolean):
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dialog.dir_line_edit.setEnabled(boolean)
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dialog.select_path_button.setEnabled(boolean)
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def dev_combobox_activated(dialog, idx):
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if idx == dialog.prev_dev_idx: #nothing has changed
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return
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#there was a change
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dialog.dir_line_edit.setText("")
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dialog.backup_dir = None
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if dialog.dev_mount_path != None:
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dialog.dev_mount_path = umount_device(dialog.dev_mount_path)
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if dialog_dev_mount_path != None:
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dialog.dev_combobox.setCurrentIndex(dialog.prev_dev_idx)
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return
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enable_dir_line_edit(dialog, False)
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if dialog.dev_combobox.currentText() != "None": #An existing device chosen
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dev_name = str(dialog.dev_combobox.itemData(idx).toString())
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if dev_name in dialog.blk_manager.free_devs:
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if dev_name.startswith(dialog.vm.name): # originally attached to dom0
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dev_path = "/dev/"+dev_name.split(":")[1]
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else: # originally attached to another domain, eg. usbvm
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#attach it to dom0, then treat it as an attached device
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dialog.blk_manager.attach_device(dialog.vm, dev_name)
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if dev_name in dialog.blk_manager.attached_devs: #is attached to dom0
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assert dialog.blk_manager.attached_devs[dev_name]['attached_to']['vm'] == dialog.vm.name
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dev_path = "/dev/" + dialog.blk_manager.attached_devs[dev_name]['attached_to']['frontend']
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#check if device mounted
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dialog.dev_mount_path = check_if_mounted(dev_path)
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if dialog.dev_mount_path != None:
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enable_dir_line_edit(dialog, True)
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else:
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dialog.dev_mount_path = mount_device(dev_path)
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if dialog.dev_mount_path != None:
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enable_dir_line_edit(dialog, True)
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else:
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dialog.dev_combobox.setCurrentIndex(0) #if couldn't mount - set current device to "None"
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dialog.prev_dev_idx = idx
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dialog.select_dir_page.emit(SIGNAL("completeChanged()"))
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def select_path_button_clicked(dialog):
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dialog.backup_dir = dialog.dir_line_edit.text()
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file_dialog = QFileDialog()
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file_dialog.setReadOnly(True)
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new_path = file_dialog.getExistingDirectory(dialog, "Select backup directory.", dialog.dev_mount_path)
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if new_path:
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dialog.dir_line_edit.setText(new_path)
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dialog.backup_dir = new_path
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dialog.select_dir_page.emit(SIGNAL("completeChanged()"))
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def simulate_long_lasting_proces(period, progress_callback):
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for i in range(period):
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progress_callback((i*100)/period)
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time.sleep(1)
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progress_callback(100)
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return 0
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