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# -*- coding: utf-8 -*-
# app.py
# Copyright (C) 2016 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
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.common.config import get_path_prefix
if platform.system() == 'Windows':
from multiprocessing import freeze_support
from PySide import QtCore, QtGui
from PySide import QtWebKit
from PySide.QtGui import QDialog
from PySide.QtGui import QApplication
from PySide.QtWebKit import QWebView, QGraphicsWebView
from PySide.QtCore import QSize
else:
from PyQt5 import QtCore, QtGui
from PyQt5 import QtWebKit
from PyQt5.QtCore import QSize
from PyQt5.QtCore import QObject, pyqtSlot
from PyQt5.QtWidgets import QDialog
from PyQt5.QtWidgets import QApplication
from PyQt5.QtWebKitWidgets import QWebView
from PyQt5.QtWebKit import QWebSettings
BITMASK_URI = 'http://localhost:7070/'
PIXELATED_URI = 'http://localhost:9090/'
IS_WIN = platform.system() == "Windows"
DEBUG = os.environ.get("DEBUG", False)
qApp = None
bitmaskd = None
browser = None
class BrowserWindow(QWebView):
"""
This qt-webkit window exposes a couple of callable objects through the
python-js bridge:
bitmaskApp.shutdown() -> shut downs the backend and frontend.
bitmaskBrowser.openPixelated() -> opens Pixelated app in a new window.
"""
def __init__(self, *args, **kw):
url = kw.pop('url', None)
first = False
if not url:
url = "http://localhost:7070"
path = os.path.join(get_path_prefix(), 'leap', 'authtoken')
token = open(path).read().strip()
url += '#' + token
first = True
self.url = url
self.closing = False
super(QWebView, self).__init__(*args, **kw)
self.bitmask_browser = NewPageConnector(self) if first else None
self.loadPage(self.url)
self.proxy = AppProxy(self) if first else None
self.frame.addToJavaScriptWindowObject(
"bitmaskApp", self.proxy)
def loadPage(self, web_page):
self.settings().setAttribute(
QWebSettings.DeveloperExtrasEnabled, True)
if os.environ.get('DEBUG'):
self.inspector = QWebInspector(self)
self.inspector.setPage(self.page())
self.inspector.show()
if os.path.isabs(web_page):
web_page = os.path.relpath(web_page)
url = QtCore.QUrl(web_page)
self.frame = self.page().mainFrame()
self.frame.addToJavaScriptWindowObject(
"bitmaskBrowser", self.bitmask_browser)
self.load(url)
def shutdown(self, *args):
if self.closing:
return
self.closing = True
global bitmaskd
bitmaskd.join()
if os.path.isfile(pid):
with open(pid) as f:
pidno = int(f.read())
print('[bitmask] terminating bitmaskd...')
os.kill(pidno, signal.SIGTERM)
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 AppProxy(QObject):
@pyqtSlot()
def shutdown(self):
"""To be exposed from the js bridge"""
global browser
if browser:
browser.close()
pixbrowser = None
class NewPageConnector(QObject):
@pyqtSlot()
def openPixelated(self):
global pixbrowser
pixbrowser = BrowserWindow(url=PIXELATED_URI)
pixbrowser.show()
def _handle_kill(*args, **kw):
win = kw.get('win')
if win:
QtCore.QTimer.singleShot(0, win.close)
global pixbrowser
if pixbrowser:
QtCore.QTimer.singleShot(0, pixbrowser.close)
def launch_gui():
global qApp
global bitmaskd
global browser
if IS_WIN:
freeze_support()
bitmaskd = Process(target=run_bitmaskd)
bitmaskd.start()
qApp = QApplication([])
browser = BrowserWindow(None)
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)
browser.show()
sys.exit(qApp.exec_())
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 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 STANDALONE and len(sys.argv) > MIN_ARGS:
from leap.bitmask.cli import bitmask_cli
return bitmask_cli.main()
launch_gui()
if __name__ == "__main__":
start_app()
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