forked from shaba/openuds
339 lines
12 KiB
Python
Executable File
339 lines
12 KiB
Python
Executable File
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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#
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# Copyright (c) 2014-2017 Virtual Cable S.L.
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without modification,
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# are permitted provided that the following conditions are met:
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#
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# * Redistributions of source code must retain the above copyright notice,
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# this list of conditions and the following disclaimer.
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# * Redistributions in binary form must reproduce the above copyright notice,
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# this list of conditions and the following disclaimer in the documentation
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# and/or other materials provided with the distribution.
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# * Neither the name of Virtual Cable S.L. nor the names of its contributors
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# may be used to endorse or promote products derived from this software
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# without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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'''
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@author: Adolfo Gómez, dkmaster at dkmon dot com
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'''
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# pylint: disable=c-extension-no-member
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from __future__ import unicode_literals
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import sys
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import webbrowser
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import json
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import base64, bz2
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from PyQt5 import QtCore, QtGui, QtWidgets # @UnresolvedImport
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import six
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from uds.rest import RestRequest
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from uds.forward import forward # pylint: disable=unused-import
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from uds.log import logger
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from uds import tools
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from uds import VERSION
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from UDSWindow import Ui_MainWindow
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# Server before this version uses "unsigned" scripts
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OLD_METHOD_VERSION = '2.4.0'
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class RetryException(Exception):
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pass
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class UDSClient(QtWidgets.QMainWindow):
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ticket = None
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scrambler = None
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withError = False
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animTimer = None
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anim = 0
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animInverted = False
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serverVersion = 'X.Y.Z' # Will be overwriten on getVersion
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req = None
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def __init__(self):
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QtWidgets.QMainWindow.__init__(self)
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self.setWindowFlags(QtCore.Qt.FramelessWindowHint | QtCore.Qt.WindowStaysOnTopHint)
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self.ui = Ui_MainWindow()
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self.ui.setupUi(self)
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self.ui.progressBar.setValue(0)
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self.ui.cancelButton.clicked.connect(self.cancelPushed)
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self.ui.info.setText('Initializing...')
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screen = QtWidgets.QDesktopWidget().screenGeometry()
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mysize = self.geometry()
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hpos = (screen.width() - mysize.width()) / 2
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vpos = (screen.height() - mysize.height() - mysize.height()) / 2
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self.move(hpos, vpos)
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self.animTimer = QtCore.QTimer()
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self.animTimer.timeout.connect(self.updateAnim)
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# QtCore.QObject.connect(self.animTimer, QtCore.SIGNAL('timeout()'), self.updateAnim)
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self.activateWindow()
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self.startAnim()
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def closeWindow(self):
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self.close()
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def processError(self, data):
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if 'error' in data:
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# QtWidgets.QMessageBox.critical(self, 'Request error {}'.format(data.get('retryable', '0')), data['error'], QtWidgets.QMessageBox.Ok)
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if data.get('retryable', '0') == '1':
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raise RetryException(data['error'])
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raise Exception(data['error'])
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# QtWidgets.QMessageBox.critical(self, 'Request error', rest.data['error'], QtWidgets.QMessageBox.Ok)
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# self.closeWindow()
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# return
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def showError(self, error):
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logger.error('got error: %s', error)
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self.stopAnim()
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self.ui.info.setText('UDS Plugin Error') # In fact, main window is hidden, so this is not visible... :)
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self.closeWindow()
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QtWidgets.QMessageBox.critical(None, 'UDS Plugin Error', '{}'.format(error), QtWidgets.QMessageBox.Ok)
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self.withError = True
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def cancelPushed(self):
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self.close()
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@QtCore.pyqtSlot()
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def updateAnim(self):
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self.anim += 2
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if self.anim > 99:
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self.animInverted = not self.animInverted
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self.ui.progressBar.setInvertedAppearance(self.animInverted)
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self.anim = 0
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self.ui.progressBar.setValue(self.anim)
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def startAnim(self):
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self.ui.progressBar.invertedAppearance = False
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self.anim = 0
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self.animInverted = False
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self.ui.progressBar.setInvertedAppearance(self.animInverted)
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self.animTimer.start(40)
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def stopAnim(self):
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self.ui.progressBar.invertedAppearance = False
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self.animTimer.stop()
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@QtCore.pyqtSlot()
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def getVersion(self):
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self.req = RestRequest('', self, self.version)
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self.req.get()
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@QtCore.pyqtSlot(dict)
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def version(self, data):
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try:
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self.processError(data)
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self.ui.info.setText('Processing...')
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if data['result']['requiredVersion'] > VERSION:
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QtWidgets.QMessageBox.critical(self, 'Upgrade required', 'A newer connector version is required.\nA browser will be opened to download it.', QtWidgets.QMessageBox.Ok)
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webbrowser.open(data['result']['downloadUrl'])
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self.closeWindow()
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return
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self.serverVersion = data['result']['requiredVersion']
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self.getTransportData()
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except RetryException as e:
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self.ui.info.setText(six.text_type(e))
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QtCore.QTimer.singleShot(1000, self.getVersion)
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except Exception as e:
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self.showError(e)
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@QtCore.pyqtSlot()
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def getTransportData(self):
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try:
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self.req = RestRequest('/{}/{}'.format(self.ticket, self.scrambler), self, self.transportDataReceived, params={'hostname': tools.getHostName(), 'version': VERSION})
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self.req.get()
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except Exception as e:
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logger.exception('Got exception on getTransportData')
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raise e
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@QtCore.pyqtSlot(dict)
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def transportDataReceived(self, data):
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logger.debug('Transport data received')
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try:
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self.processError(data)
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params = None
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if self.serverVersion <= OLD_METHOD_VERSION:
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script = bz2.decompress(base64.b64decode(data['result']))
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# This fixes uds 2.2 "write" string on binary streams on some transport
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script = script.replace(b'stdin.write("', b'stdin.write(b"')
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script = script.replace(b'version)', b'version.decode("utf-8"))')
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else:
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res = data['result']
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# We have three elements on result:
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# * Script
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# * Signature
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# * Script data
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# We test that the Script has correct signature, and them execute it with the parameters
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#script, signature, params = res['script'].decode('base64').decode('bz2'), res['signature'], json.loads(res['params'].decode('base64').decode('bz2'))
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script, signature, params = bz2.decompress(base64.b64decode(res['script'])), res['signature'], json.loads(bz2.decompress(base64.b64decode(res['params'])))
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if tools.verifySignature(script, signature) is False:
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logger.error('Signature is invalid')
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raise Exception('Invalid UDS code signature. Please, report to administrator')
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self.stopAnim()
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if 'darwin' in sys.platform:
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self.showMinimized()
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QtCore.QTimer.singleShot(3000, self.endScript)
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self.hide()
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six.exec_(script.decode("utf-8"), globals(), {'parent': self, 'sp': params})
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except RetryException as e:
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self.ui.info.setText(six.text_type(e) + ', retrying access...')
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# Retry operation in ten seconds
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QtCore.QTimer.singleShot(10000, self.getTransportData)
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except Exception as e:
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#logger.exception('Got exception executing script:')
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self.showError(e)
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def endScript(self):
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# After running script, wait for stuff
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try:
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tools.waitForTasks()
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except Exception:
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pass
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try:
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tools.unlinkFiles()
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except Exception:
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pass
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try:
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tools.execBeforeExit()
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except Exception:
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pass
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self.closeWindow()
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def start(self):
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'''
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Starts proccess by requesting version info
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'''
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self.ui.info.setText('Initializing...')
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QtCore.QTimer.singleShot(100, self.getVersion)
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def done(data):
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QtWidgets.QMessageBox.critical(None, 'Notice', six.text_type(data.data), QtWidgets.QMessageBox.Ok)
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sys.exit(0)
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# Ask user to approve endpoint
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def approveHost(hostName, parentWindow=None):
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settings = QtCore.QSettings()
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settings.beginGroup('endpoints')
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#approved = settings.value(hostName, False).toBool()
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approved = bool(settings.value(hostName, False))
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errorString = '<p>The server <b>{}</b> must be approved:</p>'.format(hostName)
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errorString += '<p>Only approve UDS servers that you trust to avoid security issues.</p>'
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if approved or QtWidgets.QMessageBox.warning(parentWindow, 'ACCESS Warning', errorString, QtWidgets.QMessageBox.Yes | QtWidgets.QMessageBox.No) == QtWidgets.QMessageBox.Yes:
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settings.setValue(hostName, True)
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approved = True
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settings.endGroup()
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return approved
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if __name__ == "__main__":
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logger.debug('Initializing connector')
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# Initialize app
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app = QtWidgets.QApplication(sys.argv)
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# Set several info for settings
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QtCore.QCoreApplication.setOrganizationName('Virtual Cable S.L.U.')
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QtCore.QCoreApplication.setApplicationName('UDS Connector')
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if 'darwin' not in sys.platform:
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logger.debug('Mac OS *NOT* Detected')
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app.setStyle('plastique')
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if six.PY3 is False:
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logger.debug('Fixing threaded execution of commands')
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import threading
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threading._DummyThread._Thread__stop = lambda x: 42 # type: ignore, pylint: disable=protected-access
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# First parameter must be url
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try:
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uri = sys.argv[1]
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if uri == '--test':
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sys.exit(0)
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logger.debug('URI: %s', uri)
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if uri[:6] != 'uds://' and uri[:7] != 'udss://':
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raise Exception()
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ssl = uri[3] == 's'
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host, UDSClient.ticket, UDSClient.scrambler = uri.split('//')[1].split('/') # type: ignore
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logger.debug('ssl:%s, host:%s, ticket:%s, scrambler:%s', ssl, host, UDSClient.ticket, UDSClient.scrambler)
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except Exception:
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logger.debug('Detected execution without valid URI, exiting')
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QtWidgets.QMessageBox.critical(None, 'Notice', 'UDS Client Version {}'.format(VERSION), QtWidgets.QMessageBox.Ok)
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sys.exit(1)
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# Setup REST api endpoint
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RestRequest.restApiUrl = '{}://{}/rest/client'.format(['http', 'https'][ssl], host)
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logger.debug('Setting request URL to %s', RestRequest.restApiUrl)
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# RestRequest.restApiUrl = 'https://172.27.0.1/rest/client'
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try:
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logger.debug('Starting execution')
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# Approbe before going on
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if approveHost(host) is False:
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raise Exception('Host {} was not approved'.format(host))
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win = UDSClient()
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win.show()
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win.start()
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exitVal = app.exec_()
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logger.debug('Execution finished correctly')
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except Exception as e:
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logger.exception('Got an exception executing client:')
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exitVal = 128
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QtWidgets.QMessageBox.critical(None, 'Error', six.text_type(e), QtWidgets.QMessageBox.Ok)
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logger.debug('Exiting')
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sys.exit(exitVal)
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