# -*- coding: utf-8 -*-
# app.py
# Copyright (C) 2016-2017 LEAP Encryption Acess Project
#
# 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 3 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, see <http://www.gnu.org/licenses/>.
"""
Main entrypoint for the Bitmask Qt GUI.
It just launches a wekbit browser that runs the local web-ui served by bitmaskd
when the web service is running.
"""
import os
import platform
import signal
import sys
import webbrowser
from functools import partial
from multiprocessing import Process
from leap.bitmask.core.launcher import run_bitmaskd, pid
from leap.bitmask.gui import app_rc
from leap.bitmask.gui.systray import WithTrayIcon
from leap.bitmask.gui.housekeeping import cleanup, terminate, reset_authtoken
from leap.bitmask.gui.housekeeping import get_authenticated_url
from leap.bitmask.gui.housekeeping import NoAuthTokenError
from leap.bitmask.gui.housekeeping import check_stale_pidfile
from leap.common.config import get_path_prefix
HAS_WEBENGINE = False
if platform.system() == 'Windows':
from multiprocessing import freeze_support
from PySide import QtCore, QtGui
from PySide.QtGui import QDialog
from PySide.QtGui import QApplication
from PySide.QtWebKit import QWebView, QGraphicsWebView
else:
from PyQt5 import QtCore, QtGui
from PyQt5.QtCore import QObject, pyqtSlot
from PyQt5.QtWidgets import QApplication
from PyQt5.QtGui import QIcon
from PyQt5.QtGui import QPixmap
from PyQt5.QtWidgets import QAction
from PyQt5.QtWidgets import QMenu
from PyQt5.QtWidgets import QDialog
from PyQt5.QtWidgets import QMessageBox
try:
from PyQt5.QtWebEngineWidgets import QWebEngineView as QWebView
from PyQt5.QtWebEngineWidgets import QWebEngineSettings as QWebSettings
from PyQt5.QtWebChannel import QWebChannel
HAS_WEBENGINE = True
except ImportError:
from PyQt5.QtWebKitWidgets import QWebView
from PyQt5.QtWebKit import QWebSettings
IS_WIN = platform.system() == "Windows"
DEBUG = os.environ.get("DEBUG", False)
BITMASK_URI = 'http://localhost:7070/'
PIXELATED_URI = 'http://localhost:9090/'
qApp = None
bitmaskd = None
browser = None
class BrowserWindow(QWebView, WithTrayIcon):
"""
This qt-webkit window exposes a couple of callable objects through the
python-js bridge:
bitmaskApp.shutdown() -> shut downs the backend and frontend.
bitmaskApp.openSystemBrowser(url) -> opens URL in system browser
bitmaskBrowser.openPixelated() -> opens Pixelated app in a new window.
This BrowserWindow assumes that the backend is already running, since it is
going to look for the authtoken in the configuration folder.
"""
def __init__(self, *args, **kw):
url = kw.pop('url', None)
first = False
if not url:
url = get_authenticated_url()
first = True
self.url = url
self.closing = False
super(QWebView, self).__init__(*args, **kw)
self.setWindowTitle('Bitmask')
self.bitmask_browser = NewPageConnector(self) if first else None
self.loadPage(self.url)
self.bridge = AppBridge(self) if first else None
if self.bridge is not None and HAS_WEBENGINE:
print "[+] registering python<->js bridge"
channel = QWebChannel(self)
channel.registerObject("bitmaskApp", self.bridge)
self.page().setWebChannel(channel)
icon = QtGui.QIcon()
icon.addPixmap(
QtGui.QPixmap(":/mask-icon.png"),
QtGui.QIcon.Normal, QtGui.QIcon.Off)
self.setWindowIcon(icon)
def loadPage(self, web_page):
if os.path.isabs(web_page):
web_page = os.path.relpath(web_page)
url = QtCore.QUrl(web_page)
self.load(url)
def shutdown(self, *args):
global bitmaskd
if self.closing:
return
self.closing = True
bitmaskd.join()
terminate(pid)
cleanup()
print('[bitmask] shutting down gui...')
try:
self.stop()
try:
global pixbrowser
pixbrowser.stop()
del pixbrowser
except:
pass
QtCore.QTimer.singleShot(0, qApp.deleteLater)
except Exception as ex:
print('exception catched: %r' % ex)
sys.exit(1)
class AppBridge(QObject):
@pyqtSlot()
def shutdown(self):
print "[+] shutdown called from js"
global browser
if browser:
browser.user_closed = True
browser.close()
@pyqtSlot(str)
def openSystemBrowser(self, url):
webbrowser.open(url)
pixbrowser = None
closing = False
class NewPageConnector(QObject):
@pyqtSlot()
def openPixelated(self):
global pixbrowser
pixbrowser = BrowserWindow(url=PIXELATED_URI)
pixbrowser.show()
def _handle_kill(*args, **kw):
global pixbrowser
global closing
if closing:
sys.exit()
win = kw.get('win')
if win:
win.user_closed = True
QtCore.QTimer.singleShot(0, win.close)
if pixbrowser:
QtCore.QTimer.singleShot(0, pixbrowser.close)
closing = True
def launch_backend():
global bitmaskd
check_stale_pidfile()
bitmaskd = Process(target=run_bitmaskd)
bitmaskd.start()
def launch_gui(with_window=True):
global qApp
global browser
if IS_WIN:
freeze_support()
launch_backend()
qApp = QApplication([])
try:
browser = BrowserWindow(None)
except NoAuthTokenError as e:
print('ERROR: ' + e.message)
sys.exit(1)
browser.setupSysTray()
qApp.setQuitOnLastWindowClosed(True)
qApp.lastWindowClosed.connect(browser.shutdown)
signal.signal(
signal.SIGINT,
partial(_handle_kill, win=browser))
# Avoid code to get stuck inside c++ loop, returning control
# to python land.
timer = QtCore.QTimer()
timer.timeout.connect(lambda: None)
timer.start(500)
if with_window:
browser.show()
sys.exit(qApp.exec_())
usage = '''bitmask [<args>]
Launches the Bitmask GUI.
OPTIONAL ARGUMENTS:
--nowindow does not launch the main window, only the systray.
SEE ALSO:
bitmaskctl controls bitmask daemon from the command line.
'''
def start_app():
from leap.bitmask.util import STANDALONE
os.environ['QT_AUTO_SCREEN_SCALE_FACTOR'] = '1'
# Allow the frozen binary in the bundle double as the cli entrypoint
# Why have only a user interface when you can have two?
if DEBUG:
os.environ.setdefault('QTWEBENGINE_REMOTE_DEBUGGING', '8081')
if platform.system() == 'Windows':
# In windows, there are some args added to the invocation
# by PyInstaller, I guess...
MIN_ARGS = 3
else:
MIN_ARGS = 1
# DEBUG ====================================
if len(sys.argv) > MIN_ARGS:
if STANDALONE:
if sys.argv[1] == 'bitmask_helpers':
from leap.bitmask.vpn.helpers import main
return main()
from leap.bitmask.cli import bitmask_cli
return bitmask_cli.main()
else:
if sys.argv[1] == '--help' or sys.argv[1] == 'help':
print(usage)
sys.exit()
reset_authtoken()
with_window = '--nowindow' not in sys.argv
launch_gui(with_window)
if __name__ == "__main__":
start_app()