diff options
| author | kali <kali@leap.se> | 2012-07-22 21:10:15 -0700 |
|---|---|---|
| committer | kali <kali@leap.se> | 2012-07-22 21:10:15 -0700 |
| commit | c46d8da153ac658c8bd145376e22b1218db1090a (patch) | |
| tree | 0943a4a866d9f3b1bc590c1c23f810ca13635f9e /src/leap | |
initial import
Diffstat (limited to 'src/leap')
| -rw-r--r-- | src/leap/__init__.py | 0 | ||||
| -rw-r--r-- | src/leap/app.py | 41 | ||||
| -rw-r--r-- | src/leap/baseapp/__init__.py | 0 | ||||
| -rw-r--r-- | src/leap/baseapp/config.py | 40 | ||||
| -rw-r--r-- | src/leap/baseapp/mainwindow.py | 398 | ||||
| -rw-r--r-- | src/leap/eip/__init__.py | 0 | ||||
| -rw-r--r-- | src/leap/eip/conductor.py | 272 | ||||
| -rw-r--r-- | src/leap/eip/vpnmanager.py | 262 | ||||
| -rw-r--r-- | src/leap/eip/vpnwatcher.py | 169 | ||||
| -rw-r--r-- | src/leap/gui/__init__.py | 0 | ||||
| -rw-r--r-- | src/leap/gui/mainwindow_rc.py | 789 | ||||
| -rw-r--r-- | src/leap/tests/fakeclient.py | 63 | ||||
| -rw-r--r-- | src/leap/tests/mocks/__init__.py | 1 | ||||
| -rw-r--r-- | src/leap/tests/mocks/manager.py | 20 | ||||
| -rw-r--r-- | src/leap/utils/__init__.py | 0 | ||||
| -rw-r--r-- | src/leap/utils/coroutines.py | 107 | ||||
| -rw-r--r-- | src/leap/utils/leap_argparse.py | 20 |
17 files changed, 2182 insertions, 0 deletions
diff --git a/src/leap/__init__.py b/src/leap/__init__.py new file mode 100644 index 00000000..e69de29b --- /dev/null +++ b/src/leap/__init__.py diff --git a/src/leap/app.py b/src/leap/app.py new file mode 100644 index 00000000..0a61fd4f --- /dev/null +++ b/src/leap/app.py @@ -0,0 +1,41 @@ +import logging +# This is only needed for Python v2 but is harmless for Python v3. +import sip +sip.setapi('QVariant', 2) +from PyQt4.QtGui import (QApplication, QSystemTrayIcon, QMessageBox) + +from leap.baseapp.mainwindow import LeapWindow + +logger = logging.getLogger(name=__name__) + + +def main(): + """ + launches the main event loop + long live to the (hidden) leap window! + """ + import sys + from leap.utils import leap_argparse + parser, opts = leap_argparse.init_leapc_args() + debug = getattr(opts, 'debug', False) + + #XXX get debug level and set logger accordingly + if debug: + logger.debug('args: ', opts) + + app = QApplication(sys.argv) + + if not QSystemTrayIcon.isSystemTrayAvailable(): + QMessageBox.critical(None, "Systray", + "I couldn't detect any \ +system tray on this system.") + sys.exit(1) + if not debug: + QApplication.setQuitOnLastWindowClosed(False) + + window = LeapWindow(opts) + window.show() + sys.exit(app.exec_()) + +if __name__ == "__main__": + main() diff --git a/src/leap/baseapp/__init__.py b/src/leap/baseapp/__init__.py new file mode 100644 index 00000000..e69de29b --- /dev/null +++ b/src/leap/baseapp/__init__.py diff --git a/src/leap/baseapp/config.py b/src/leap/baseapp/config.py new file mode 100644 index 00000000..efdb4726 --- /dev/null +++ b/src/leap/baseapp/config.py @@ -0,0 +1,40 @@ +import ConfigParser +import os + + +def get_config(config_file=None): + """ + temporary method for getting configs, + mainly for early stage development process. + in the future we will get preferences + from the storage api + """ + config = ConfigParser.ConfigParser() + #config.readfp(open('defaults.cfg')) + #XXX does this work on win / mac also??? + conf_path_list = ['eip.cfg', # XXX build a + # proper path with platform-specific places + # XXX make .config/foo + os.path.expanduser('~/.eip.cfg')] + if config_file: + config.readfp(config_file) + else: + config.read(conf_path_list) + return config + + +# XXX wrapper around config? to get default values + +def get_with_defaults(config, section, option): + if config.has_option(section, option): + return config.get(section, option) + else: + # XXX lookup in defaults dict??? + pass + + +def get_vpn_stdout_mockup(): + command = "python" + args = ["-u", "-c", "from eip_client import fakeclient;\ +fakeclient.write_output()"] + return command, args diff --git a/src/leap/baseapp/mainwindow.py b/src/leap/baseapp/mainwindow.py new file mode 100644 index 00000000..68b6de8f --- /dev/null +++ b/src/leap/baseapp/mainwindow.py @@ -0,0 +1,398 @@ +# vim: set fileencoding=utf-8 : +#!/usr/bin/env python +import logging +import time +logger = logging.getLogger(name=__name__) + +from PyQt4.QtGui import (QMainWindow, QWidget, QVBoxLayout, QMessageBox, + QSystemTrayIcon, QGroupBox, QLabel, QPixmap, + QHBoxLayout, QIcon, + QPushButton, QGridLayout, QAction, QMenu, + QTextBrowser, qApp) +from PyQt4.QtCore import (pyqtSlot, pyqtSignal, QTimer) + +from leap.gui import mainwindow_rc +from leap.eip.conductor import EIPConductor + + +class LeapWindow(QMainWindow): + #XXX tbd: refactor into model / view / controller + #and put in its own modules... + + newLogLine = pyqtSignal([str]) + statusChange = pyqtSignal([object]) + + def __init__(self, opts): + super(LeapWindow, self).__init__() + self.debugmode = getattr(opts, 'debug', False) + + self.vpn_service_started = False + + self.createWindowHeader() + self.createIconGroupBox() + + self.createActions() + self.createTrayIcon() + if self.debugmode: + self.createLogBrowser() + + # create timer + self.timer = QTimer() + + # bind signals + + self.trayIcon.activated.connect(self.iconActivated) + self.newLogLine.connect(self.onLoggerNewLine) + self.statusChange.connect(self.onStatusChange) + self.timer.timeout.connect(self.onTimerTick) + + widget = QWidget() + self.setCentralWidget(widget) + + # add widgets to layout + mainLayout = QVBoxLayout() + mainLayout.addWidget(self.headerBox) + mainLayout.addWidget(self.statusIconBox) + if self.debugmode: + mainLayout.addWidget(self.statusBox) + mainLayout.addWidget(self.loggerBox) + widget.setLayout(mainLayout) + + # + # conductor is in charge of all + # vpn-related configuration / monitoring. + # we pass a tuple of signals that will be + # triggered when status changes. + # + config_file = getattr(opts, 'config_file', None) + self.conductor = EIPConductor( + watcher_cb=self.newLogLine.emit, + config_file=config_file, + status_signals=(self.statusChange.emit, )) + + self.trayIcon.show() + + self.setWindowTitle("Leap") + self.resize(400, 300) + + self.set_statusbarMessage('ready') + + if self.conductor.autostart: + self.start_or_stopVPN() + + def closeEvent(self, event): + """ + redefines close event (persistent window behaviour) + """ + if self.trayIcon.isVisible() and not self.debugmode: + QMessageBox.information(self, "Systray", + "The program will keep running " + "in the system tray. To " + "terminate the program, choose " + "<b>Quit</b> in the " + "context menu of the system tray entry.") + self.hide() + event.ignore() + if self.debugmode: + self.cleanupAndQuit() + + def setIcon(self, name): + icon = self.Icons.get(name) + self.trayIcon.setIcon(icon) + self.setWindowIcon(icon) + + def setToolTip(self): + """ + get readable status and place it on systray tooltip + """ + status = self.conductor.status.get_readable_status() + self.trayIcon.setToolTip(status) + + def iconActivated(self, reason): + """ + handles left click, left double click + showing the trayicon menu + """ + #XXX there's a bug here! + #menu shows on (0,0) corner first time, + #until double clicked at least once. + if reason in (QSystemTrayIcon.Trigger, + QSystemTrayIcon.DoubleClick): + self.trayIconMenu.show() + + def createWindowHeader(self): + """ + description lines for main window + """ + #XXX good candidate to refactor out! :) + self.headerBox = QGroupBox() + self.headerLabel = QLabel("<font size=40><b>E</b>ncryption \ +<b>I</b>nternet <b>P</b>roxy</font>") + self.headerLabelSub = QLabel("<i>trust your \ +technolust</i>") + + pixmap = QPixmap(':/images/leapfrog.jpg') + frog_lbl = QLabel() + frog_lbl.setPixmap(pixmap) + + headerLayout = QHBoxLayout() + headerLayout.addWidget(frog_lbl) + headerLayout.addWidget(self.headerLabel) + headerLayout.addWidget(self.headerLabelSub) + headerLayout.addStretch() + self.headerBox.setLayout(headerLayout) + + def getIcon(self, icon_name): + # XXX get from connection dict + icons = {'disconnected': 0, + 'connecting': 1, + 'connected': 2} + return icons.get(icon_name, None) + + def createIconGroupBox(self): + """ + dummy icongroupbox + (to be removed from here -- reference only) + """ + icons = { + 'disconnected': ':/images/conn_error.png', + 'connecting': ':/images/conn_connecting.png', + 'connected': ':/images/conn_connected.png' + } + con_widgets = { + 'disconnected': QLabel(), + 'connecting': QLabel(), + 'connected': QLabel(), + } + con_widgets['disconnected'].setPixmap( + QPixmap(icons['disconnected'])) + con_widgets['connecting'].setPixmap( + QPixmap(icons['connecting'])) + con_widgets['connected'].setPixmap( + QPixmap(icons['connected'])), + self.ConnectionWidgets = con_widgets + + con_icons = { + 'disconnected': QIcon(icons['disconnected']), + 'connecting': QIcon(icons['connecting']), + 'connected': QIcon(icons['connected']) + } + self.Icons = con_icons + + self.statusIconBox = QGroupBox("Connection Status") + statusIconLayout = QHBoxLayout() + statusIconLayout.addWidget(self.ConnectionWidgets['disconnected']) + statusIconLayout.addWidget(self.ConnectionWidgets['connecting']) + statusIconLayout.addWidget(self.ConnectionWidgets['connected']) + statusIconLayout.itemAt(1).widget().hide() + statusIconLayout.itemAt(2).widget().hide() + self.statusIconBox.setLayout(statusIconLayout) + + def createActions(self): + """ + creates actions to be binded to tray icon + """ + self.connectVPNAction = QAction("Connect to &VPN", self, + triggered=self.hide) + # XXX change action name on (dis)connect + self.dis_connectAction = QAction("&(Dis)connect", self, + triggered=self.start_or_stopVPN) + self.minimizeAction = QAction("Mi&nimize", self, + triggered=self.hide) + self.maximizeAction = QAction("Ma&ximize", self, + triggered=self.showMaximized) + self.restoreAction = QAction("&Restore", self, + triggered=self.showNormal) + self.quitAction = QAction("&Quit", self, + triggered=self.cleanupAndQuit) + + def createTrayIcon(self): + """ + creates the tray icon + """ + self.trayIconMenu = QMenu(self) + + self.trayIconMenu.addAction(self.connectVPNAction) + self.trayIconMenu.addAction(self.dis_connectAction) + self.trayIconMenu.addSeparator() + self.trayIconMenu.addAction(self.minimizeAction) + self.trayIconMenu.addAction(self.maximizeAction) + self.trayIconMenu.addAction(self.restoreAction) + self.trayIconMenu.addSeparator() + self.trayIconMenu.addAction(self.quitAction) + + self.trayIcon = QSystemTrayIcon(self) + self.trayIcon.setContextMenu(self.trayIconMenu) + + def createLogBrowser(self): + """ + creates Browser widget for displaying logs + (in debug mode only). + """ + self.loggerBox = QGroupBox() + logging_layout = QVBoxLayout() + self.logbrowser = QTextBrowser() + + startStopButton = QPushButton("&Connect") + startStopButton.clicked.connect(self.start_or_stopVPN) + self.startStopButton = startStopButton + + logging_layout.addWidget(self.logbrowser) + logging_layout.addWidget(self.startStopButton) + self.loggerBox.setLayout(logging_layout) + + # status box + + self.statusBox = QGroupBox() + grid = QGridLayout() + + self.updateTS = QLabel('') + self.status_label = QLabel('Disconnected') + self.ip_label = QLabel('') + self.remote_label = QLabel('') + + tun_read_label = QLabel("tun read") + self.tun_read_bytes = QLabel("0") + tun_write_label = QLabel("tun write") + self.tun_write_bytes = QLabel("0") + + grid.addWidget(self.updateTS, 0, 0) + grid.addWidget(self.status_label, 0, 1) + grid.addWidget(self.ip_label, 1, 0) + grid.addWidget(self.remote_label, 1, 1) + grid.addWidget(tun_read_label, 2, 0) + grid.addWidget(self.tun_read_bytes, 2, 1) + grid.addWidget(tun_write_label, 3, 0) + grid.addWidget(self.tun_write_bytes, 3, 1) + + self.statusBox.setLayout(grid) + + @pyqtSlot(str) + def onLoggerNewLine(self, line): + """ + simple slot: writes new line to logger Pane. + """ + if self.debugmode: + self.logbrowser.append(line[:-1]) + + def set_statusbarMessage(self, msg): + self.statusBar().showMessage(msg) + + @pyqtSlot(object) + def onStatusChange(self, status): + """ + slot for status changes. triggers new signals for + updating icon, status bar, etc. + """ + + print('STATUS CHANGED! (on Qt-land)') + print('%s -> %s' % (status.previous, status.current)) + icon_name = self.conductor.get_icon_name() + self.setIcon(icon_name) + print 'icon = ', icon_name + + # change connection pixmap widget + self.setConnWidget(icon_name) + + def setConnWidget(self, icon_name): + #print 'changing icon to %s' % icon_name + oldlayout = self.statusIconBox.layout() + + # XXX reuse with icons + # XXX move states to StateWidget + states = {"disconnected": 0, + "connecting": 1, + "connected": 2} + + for i in range(3): + oldlayout.itemAt(i).widget().hide() + new = states[icon_name] + oldlayout.itemAt(new).widget().show() + + @pyqtSlot() + def start_or_stopVPN(self): + """ + stub for running child process with vpn + """ + if self.vpn_service_started is False: + self.conductor.connect() + if self.debugmode: + self.startStopButton.setText('&Disconnect') + self.vpn_service_started = True + + # XXX what is optimum polling interval? + # too little is overkill, too much + # will miss transition states.. + + self.timer.start(250.0) + return + if self.vpn_service_started is True: + self.conductor.disconnect() + # FIXME this should trigger also + # statuschange event. why isn't working?? + if self.debugmode: + self.startStopButton.setText('&Connect') + self.vpn_service_started = False + self.timer.stop() + return + + @pyqtSlot() + def onTimerTick(self): + self.statusUpdate() + + @pyqtSlot() + def statusUpdate(self): + """ + called on timer tick + polls status and updates ui with real time + info about transferred bytes / connection state. + """ + # XXX it's too expensive to poll + # continously. move to signal events instead. + + if not self.vpn_service_started: + return + + # XXX remove all access to manager layer + # from here. + if self.conductor.manager.with_errors: + #XXX how to wait on pkexec??? + #something better that this workaround, plz!! + time.sleep(10) + print('errors. disconnect.') + self.start_or_stopVPN() # is stop + + state = self.conductor.poll_connection_state() + if not state: + return + + ts, con_status, ok, ip, remote = state + self.set_statusbarMessage(con_status) + self.setToolTip() + + ts = time.strftime("%a %b %d %X", ts) + if self.debugmode: + self.updateTS.setText(ts) + self.status_label.setText(con_status) + self.ip_label.setText(ip) + self.remote_label.setText(remote) + + # status i/o + + status = self.conductor.manager.get_status_io() + if status and self.debugmode: + #XXX move this to systray menu indicators + ts, (tun_read, tun_write, tcp_read, tcp_write, auth_read) = status + ts = time.strftime("%a %b %d %X", ts) + self.updateTS.setText(ts) + self.tun_read_bytes.setText(tun_read) + self.tun_write_bytes.setText(tun_write) + + def cleanupAndQuit(self): + """ + cleans state before shutting down app. + """ + # TODO:make sure to shutdown all child process / threads + # in conductor + self.conductor.cleanup() + qApp.quit() diff --git a/src/leap/eip/__init__.py b/src/leap/eip/__init__.py new file mode 100644 index 00000000..e69de29b --- /dev/null +++ b/src/leap/eip/__init__.py diff --git a/src/leap/eip/conductor.py b/src/leap/eip/conductor.py new file mode 100644 index 00000000..e3adadc4 --- /dev/null +++ b/src/leap/eip/conductor.py @@ -0,0 +1,272 @@ +""" +stablishes a vpn connection and monitors its state +""" +from __future__ import (division, unicode_literals, print_function) +#import threading +from functools import partial +import logging + +from leap.utils.coroutines import spawn_and_watch_process +from leap.baseapp.config import get_config, get_vpn_stdout_mockup +from leap.eip.vpnwatcher import EIPConnectionStatus, status_watcher +from leap.eip.vpnmanager import OpenVPNManager, ConnectionRefusedError + +logger = logging.getLogger(name=__name__) + + +# TODO Move exceptions to their own module + + +class ConnectionError(Exception): + """ + generic connection error + """ + pass + + +class EIPClientError(Exception): + """ + base EIPClient exception + """ + def __str__(self): + if len(self.args) >= 1: + return repr(self.args[0]) + else: + return ConnectionError + + +class UnrecoverableError(EIPClientError): + """ + we cannot do anything about it, sorry + """ + pass + + +class OpenVPNConnection(object): + """ + All related to invocation + of the openvpn binary + """ + # Connection Methods + + def __init__(self, config_file=None, watcher_cb=None): + #XXX FIXME + #change watcher_cb to line_observer + """ + :param config_file: configuration file to read from + :param watcher_cb: callback to be \ +called for each line in watched stdout + :param signal_map: dictionary of signal names and callables \ +to be triggered for each one of them. + :type config_file: str + :type watcher_cb: function + :type signal_map: dict + """ + # XXX get host/port from config + self.manager = OpenVPNManager() + + self.config_file = config_file + self.watcher_cb = watcher_cb + #self.signal_maps = signal_maps + + self.subp = None + self.watcher = None + + self.server = None + self.port = None + self.proto = None + + self.autostart = True + + self._get_config() + + def _set_command_mockup(self): + """ + sets command and args for a command mockup + that just mimics the output from the real thing + """ + command, args = get_vpn_stdout_mockup() + self.command, self.args = command, args + + def _get_config(self): + """ + retrieves the config options from defaults or + home file, or config file passed in command line. + """ + config = get_config(config_file=self.config_file) + self.config = config + + if config.has_option('openvpn', 'command'): + commandline = config.get('openvpn', 'command') + if commandline == "mockup": + self._set_command_mockup() + return + command_split = commandline.split(' ') + command = command_split[0] + if len(command_split) > 1: + args = command_split[1:] + else: + args = [] + self.command = command + #print("debug: command = %s" % command) + self.args = args + else: + self._set_command_mockup() + + if config.has_option('openvpn', 'autostart'): + autostart = config.get('openvpn', 'autostart') + self.autostart = autostart + + def _launch_openvpn(self): + """ + invocation of openvpn binaries in a subprocess. + """ + #XXX TODO: + #deprecate watcher_cb, + #use _only_ signal_maps instead + + if self.watcher_cb is not None: + linewrite_callback = self.watcher_cb + else: + #XXX get logger instead + linewrite_callback = lambda line: print('watcher: %s' % line) + + observers = (linewrite_callback, + partial(status_watcher, self.status)) + subp, watcher = spawn_and_watch_process( + self.command, + self.args, + observers=observers) + self.subp = subp + self.watcher = watcher + + conn_result = self.status.CONNECTED + return conn_result + + def _try_connection(self): + """ + attempts to connect + """ + if self.subp is not None: + print('cowardly refusing to launch subprocess again') + return + self._launch_openvpn() + + def cleanup(self): + """ + terminates child subprocess + """ + if self.subp: + self.subp.terminate() + + +class EIPConductor(OpenVPNConnection): + """ + Manages the execution of the OpenVPN process, auto starts, monitors the + network connection, handles configuration, fixes leaky hosts, handles + errors, etc. + Preferences will be stored via the Storage API. (TBD) + Status updates (connected, bandwidth, etc) are signaled to the GUI. + """ + + def __init__(self, *args, **kwargs): + self.settingsfile = kwargs.get('settingsfile', None) + self.logfile = kwargs.get('logfile', None) + self.error_queue = [] + self.desired_con_state = None # ??? + + status_signals = kwargs.pop('status_signals', None) + self.status = EIPConnectionStatus(callbacks=status_signals) + + super(EIPConductor, self).__init__(*args, **kwargs) + + def connect(self): + """ + entry point for connection process + """ + self.manager.forget_errors() + self._try_connection() + # XXX should capture errors? + + def disconnect(self): + """ + disconnects client + """ + self._disconnect() + self.status.change_to(self.status.DISCONNECTED) + pass + + def shutdown(self): + """ + shutdown and quit + """ + self.desired_con_state = self.status.DISCONNECTED + + def connection_state(self): + """ + returns the current connection state + """ + return self.status.current + + def desired_connection_state(self): + """ + returns the desired_connection state + """ + return self.desired_con_state + + def poll_connection_state(self): + """ + """ + try: + state = self.manager.get_connection_state() + except ConnectionRefusedError: + # connection refused. might be not ready yet. + return + if not state: + return + (ts, status_step, + ok, ip, remote) = state + self.status.set_vpn_state(status_step) + status_step = self.status.get_readable_status() + return (ts, status_step, ok, ip, remote) + + def get_icon_name(self): + """ + get icon name from status object + """ + return self.status.get_state_icon() + + # + # private methods + # + + def _disconnect(self): + """ + private method for disconnecting + """ + if self.subp is not None: + self.subp.terminate() + self.subp = None + # XXX signal state changes! :) + + def _is_alive(self): + """ + don't know yet + """ + pass + + def _connect(self): + """ + entry point for connection cascade methods. + """ + #conn_result = ConState.DISCONNECTED + try: + conn_result = self._try_connection() + except UnrecoverableError as except_msg: + logger.error("FATAL: %s" % unicode(except_msg)) + conn_result = self.status.UNRECOVERABLE + except Exception as except_msg: + self.error_queue.append(except_msg) + logger.error("Failed Connection: %s" % + unicode(except_msg)) + return conn_result diff --git a/src/leap/eip/vpnmanager.py b/src/leap/eip/vpnmanager.py new file mode 100644 index 00000000..78777cfb --- /dev/null +++ b/src/leap/eip/vpnmanager.py @@ -0,0 +1,262 @@ +from __future__ import (print_function) +import logging +import os +import socket +import telnetlib +import time + +logger = logging.getLogger(name=__name__) + +TELNET_PORT = 23 + + +class MissingSocketError(Exception): + pass + + +class ConnectionRefusedError(Exception): + pass + + +class UDSTelnet(telnetlib.Telnet): + + def open(self, host, port=0, timeout=socket._GLOBAL_DEFAULT_TIMEOUT): + """Connect to a host. If port is 'unix', it + will open a connection over unix docmain sockets. + + The optional second argument is the port number, which + defaults to the standard telnet port (23). + + Don't try to reopen an already connected instance. + """ + self.eof = 0 + if not port: + port = TELNET_PORT + self.host = host + self.port = port + self.timeout = timeout + + if self.port == "unix": + # unix sockets spoken + if not os.path.exists(self.host): + raise MissingSocketError + self.sock = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM) + try: + self.sock.connect(self.host) + except socket.error: + raise ConnectionRefusedError + else: + self.sock = socket.create_connection((host, port), timeout) + + +# this class based in code from cube-routed project + +class OpenVPNManager(object): + """ + Run commands over OpenVPN management interface + and parses the output. + """ + # XXX might need a lock to avoid + # race conditions here... + + def __init__(self, host="/tmp/.eip.sock", port="unix", password=None): + #XXX hardcoded host here. change. + self.host = host + if isinstance(port, str) and port.isdigit(): + port = int(port) + self.port = port + self.password = password + self.tn = None + + #XXX workaround for signaling + #the ui that we don't know how to + #manage a connection error + self.with_errors = False + + def forget_errors(self): + print('forgetting errors') + self.with_errors = False + + def connect(self): + """Connect to openvpn management interface""" + try: + self.close() + except: + #XXX don't like this general + #catch here. + pass + if self.connected(): + return True + self.tn = UDSTelnet(self.host, self.port) + + # XXX make password optional + # specially for win plat. we should generate + # the pass on the fly when invoking manager + # from conductor + + #self.tn.read_until('ENTER PASSWORD:', 2) + #self.tn.write(self.password + '\n') + #self.tn.read_until('SUCCESS:', 2) + + self._seek_to_eof() + self.forget_errors() + return True + + def _seek_to_eof(self): + """ + Read as much as available. Position seek pointer to end of stream + """ + b = self.tn.read_eager() + while b: + b = self.tn.read_eager() + + def connected(self): + """ + Returns True if connected + rtype: bool + """ + #return bool(getattr(self, 'tn', None)) + try: + assert self.tn + return True + except: + #XXX get rid of + #this pokemon exception!!! + return False + + def close(self, announce=True): + """ + Close connection to openvpn management interface + """ + if announce: + self.tn.write("quit\n") + self.tn.read_all() + self.tn.get_socket().close() + del self.tn + + def _send_command(self, cmd, tries=0): + """ + Send a command to openvpn and return response as list + """ + if tries > 3: + return [] + if not self.connected(): + try: + self.connect() + except MissingSocketError: + #XXX capture more helpful error + #messages + #pass + return self.make_error() + try: + self.tn.write(cmd + "\n") + except socket.error: + logger.error('socket error') + print('socket error!') + self.close(announce=False) + self._send_command(cmd, tries=tries + 1) + return [] + buf = self.tn.read_until(b"END", 2) + self._seek_to_eof() + blist = buf.split('\r\n') + if blist[-1].startswith('END'): + del blist[-1] + return blist + else: + return [] + + def _send_short_command(self, cmd): + """ + parse output from commands that are + delimited by "success" instead + """ + if not self.connected(): + self.connect() + self.tn.write(cmd + "\n") + # XXX not working? + buf = self.tn.read_until(b"SUCCESS", 2) + self._seek_to_eof() + blist = buf.split('\r\n') + return blist + + # + # useful vpn commands + # + + def pid(self): + #XXX broken + return self._send_short_command("pid") + + def make_error(self): + """ + capture error and wrap it in an + understandable format + """ + #XXX get helpful error codes + self.with_errors = True + now = int(time.time()) + return '%s,LAUNCHER ERROR,ERROR,-,-' % now + + def state(self): + """ + OpenVPN command: state + """ + state = self._send_command("state") + if not state: + return None + if isinstance(state, str): + return state + if isinstance(state, list): + if len(state) == 1: + return state[0] + else: + return state[-1] + + def status(self): + """ + OpenVPN command: status + """ + status = self._send_command("status") + return status + + def status2(self): + """ + OpenVPN command: last 2 statuses + """ + return self._send_command("status 2") + + # + # parse info + # + + def get_status_io(self): + status = self.status() + if isinstance(status, str): + lines = status.split('\n') + if isinstance(status, list): + lines = status + try: + (header, when, tun_read, tun_write, + tcp_read, tcp_write, auth_read) = tuple(lines) + except ValueError: + return None + + when_ts = time.strptime(when.split(',')[1], "%a %b %d %H:%M:%S %Y") + sep = ',' + # XXX cleanup! + tun_read = tun_read.split(sep)[1] + tun_write = tun_write.split(sep)[1] + tcp_read = tcp_read.split(sep)[1] + tcp_write = tcp_write.split(sep)[1] + auth_read = auth_read.split(sep)[1] + + # XXX this could be a named tuple. prettier. + return when_ts, (tun_read, tun_write, tcp_read, tcp_write, auth_read) + + def get_connection_state(self): + state = self.state() + if state is not None: + ts, status_step, ok, ip, remote = state.split(',') + ts = time.gmtime(float(ts)) + # XXX this could be a named tuple. prettier. + return ts, status_step, ok, ip, remote diff --git a/src/leap/eip/vpnwatcher.py b/src/leap/eip/vpnwatcher.py new file mode 100644 index 00000000..09bd5811 --- /dev/null +++ b/src/leap/eip/vpnwatcher.py @@ -0,0 +1,169 @@ +"""generic watcher object that keeps track of connection status""" +# This should be deprecated in favor of daemon mode + management +# interface. But we can leave it here for debug purposes. + + +class EIPConnectionStatus(object): + """ + Keep track of client (gui) and openvpn + states. + + These are the OpenVPN states: + CONNECTING -- OpenVPN's initial state. + WAIT -- (Client only) Waiting for initial response + from server. + AUTH -- (Client only) Authenticating with server. + GET_CONFIG -- (Client only) Downloading configuration options + from server. + ASSIGN_IP -- Assigning IP address to virtual network + interface. + ADD_ROUTES -- Adding routes to system. + CONNECTED -- Initialization Sequence Completed. + RECONNECTING -- A restart has occurred. + EXITING -- A graceful exit is in progress. + + We add some extra states: + + DISCONNECTED -- GUI initial state. + UNRECOVERABLE -- An unrecoverable error has been raised + while invoking openvpn service. + """ + CONNECTING = 1 + WAIT = 2 + AUTH = 3 + GET_CONFIG = 4 + ASSIGN_IP = 5 + ADD_ROUTES = 6 + CONNECTED = 7 + RECONNECTING = 8 + EXITING = 9 + + # gui specific states: + UNRECOVERABLE = 11 + DISCONNECTED = 0 + + def __init__(self, callbacks=None): + """ + EIPConnectionStatus is initialized with a tuple + of signals to be triggered. + :param callbacks: a tuple of (callable) observers + :type callbacks: tuple + """ + # (callbacks to connect to signals in Qt-land) + self.current = self.DISCONNECTED + self.previous = None + self.callbacks = callbacks + + def get_readable_status(self): + # XXX DRY status / labels a little bit. + # think we'll want to i18n this. + human_status = { + 0: 'disconnected', + 1: 'connecting', + 2: 'waiting', + 3: 'authenticating', + 4: 'getting config', + 5: 'assigning ip', + 6: 'adding routes', + 7: 'connected', + 8: 'reconnecting', + 9: 'exiting', + 11: 'unrecoverable error', + } + return human_status[self.current] + + def get_state_icon(self): + """ + returns the high level icon + for each fine-grain openvpn state + """ + connecting = (self.CONNECTING, + self.WAIT, + self.AUTH, + self.GET_CONFIG, + self.ASSIGN_IP, + self.ADD_ROUTES) + connected = (self.CONNECTED,) + disconnected = (self.DISCONNECTED, + self.UNRECOVERABLE) + + # this can be made smarter, + # but it's like it'll change, + # so +readability. + + if self.current in connecting: + return "connecting" + if self.current in connected: + return "connected" + if self.current in disconnected: + return "disconnected" + + def set_vpn_state(self, status): + """ + accepts a state string from the management + interface, and sets the internal state. + :param status: openvpn STATE (uppercase). + :type status: str + """ + if hasattr(self, status): + self.change_to(getattr(self, status)) + + def set_current(self, to): + """ + setter for the 'current' property + :param to: destination state + :type to: int + """ + self.current = to + + def change_to(self, to): + """ + :param to: destination state + :type to: int + """ + if to == self.current: + return + changed = False + from_ = self.current + self.current = to + + # We can add transition restrictions + # here to ensure no transitions are + # allowed outside the fsm. + + self.set_current(to) + changed = True + + #trigger signals (as callbacks) + #print('current state: %s' % self.current) + if changed: + self.previous = from_ + if self.callbacks: + for cb in self.callbacks: + if callable(cb): + cb(self) + + +def status_watcher(cs, line): + """ + a wrapper that calls to ConnectionStatus object + :param cs: a EIPConnectionStatus instance + :type cs: EIPConnectionStatus object + :param line: a single line of the watched output + :type line: str + """ + #print('status watcher watching') + + # from the mullvad code, should watch for + # things like: + # "Initialization Sequence Completed" + # "With Errors" + # "Tap-Win32" + + if "Completed" in line: + cs.change_to(cs.CONNECTED) + return + + if "Initial packet from" in line: + cs.change_to(cs.CONNECTING) + return diff --git a/src/leap/gui/__init__.py b/src/leap/gui/__init__.py new file mode 100644 index 00000000..e69de29b --- /dev/null +++ b/src/leap/gui/__init__.py diff --git a/src/leap/gui/mainwindow_rc.py b/src/leap/gui/mainwindow_rc.py new file mode 100644 index 00000000..e5a671f3 --- /dev/null +++ b/src/leap/gui/mainwindow_rc.py @@ -0,0 +1,789 @@ +# -*- coding: utf-8 -*- + +# Resource object code +# +# Created: Sun Jul 22 17:08:49 2012 +# by: The Resource Compiler for PyQt (Qt v4.8.2) +# +# WARNING! 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QtCore.qUnregisterResourceData(0x01, qt_resource_struct, qt_resource_name, qt_resource_data) + +qInitResources() diff --git a/src/leap/tests/fakeclient.py b/src/leap/tests/fakeclient.py new file mode 100644 index 00000000..45de2cd6 --- /dev/null +++ b/src/leap/tests/fakeclient.py @@ -0,0 +1,63 @@ +fakeoutput = """ +mullvad Sun Jun 17 14:34:57 2012 OpenVPN 2.2.1 i486-linux-gnu [SSL] [LZO2] [EPOLL] [PKCS11] [eurephia] [MH] [PF_INET6] [IPv6 payload 20110424-2 (2.2RC2)] built + on Mar 23 2012 +Sun Jun 17 14:34:57 2012 MANAGEMENT: TCP Socket listening on [AF_INET]127.0.0.1:7505 +Sun Jun 17 14:34:57 2012 NOTE: the current --script-security setting may allow this configuration to call user-defined scripts +Sun Jun 17 14:34:57 2012 WARNING: file 'ssl/1021380964266.key' is group or others accessible +Sun Jun 17 14:34:57 2012 LZO compression initialized +Sun Jun 17 14:34:57 2012 Control Channel MTU parms [ L:1542 D:138 EF:38 EB:0 ET:0 EL:0 ] +Sun Jun 17 14:34:57 2012 Socket Buffers: R=[163840->131072] S=[163840->131072] +Sun Jun 17 14:34:57 2012 Data Channel MTU parms [ L:1542 D:1450 EF:42 EB:135 ET:0 EL:0 AF:3/1 ] +Sun Jun 17 14:34:57 2012 Local Options hash (VER=V4): '41690919' +Sun Jun 17 14:34:57 2012 Expected Remote Options hash (VER=V4): '530fdded' +Sun Jun 17 14:34:57 2012 UDPv4 link local: [undef] +Sun Jun 17 14:34:57 2012 UDPv4 link remote: [AF_INET]46.21.99.25:1197 +Sun Jun 17 14:34:57 2012 TLS: Initial packet from [AF_INET]46.21.99.25:1197, sid=63c29ace 1d3060d0 +Sun Jun 17 14:34:58 2012 VERIFY OK: depth=2, /C=NA/ST=None/L=None/O=Mullvad/CN=Mullvad_CA/emailAddress=info@mullvad.net +Sun Jun 17 14:34:58 2012 VERIFY OK: depth=1, /C=NA/ST=None/L=None/O=Mullvad/CN=master.mullvad.net/emailAddress=info@mullvad.net +Sun Jun 17 14:34:58 2012 Validating certificate key usage +Sun Jun 17 14:34:58 2012 ++ Certificate has key usage 00a0, expects 00a0 +Sun Jun 17 14:34:58 2012 VERIFY KU OK +Sun Jun 17 14:34:58 2012 Validating certificate extended key usage +Sun Jun 17 14:34:58 2012 ++ Certificate has EKU (str) TLS Web Server Authentication, expects TLS Web Server Authentication +Sun Jun 17 14:34:58 2012 VERIFY EKU OK +Sun Jun 17 14:34:58 2012 VERIFY OK: depth=0, /C=NA/ST=None/L=None/O=Mullvad/CN=se2.mullvad.net/emailAddress=info@mullvad.net +Sun Jun 17 14:34:59 2012 Data Channel Encrypt: Cipher 'BF-CBC' initialized with 128 bit key +Sun Jun 17 14:34:59 2012 Data Channel Encrypt: Using 160 bit message hash 'SHA1' for HMAC authentication +Sun Jun 17 14:34:59 2012 Data Channel Decrypt: Cipher 'BF-CBC' initialized with 128 bit key +Sun Jun 17 14:34:59 2012 Data Channel Decrypt: Using 160 bit message hash 'SHA1' for HMAC authentication +Sun Jun 17 14:34:59 2012 Control Channel: TLSv1, cipher TLSv1/SSLv3 DHE-RSA-AES256-SHA, 2048 bit RSA +Sun Jun 17 14:34:59 2012 [se2.mullvad.net] Peer Connection Initiated with [AF_INET]46.21.99.25:1197 +Sun Jun 17 14:35:01 2012 SENT CONTROL [se2.mullvad.net]: 'PUSH_REQUEST' (status=1) +Sun Jun 17 14:35:02 2012 PUSH: Received control message: 'PUSH_REPLY,redirect-gateway def1 bypass-dhcp,dhcp-option DNS 10.11.0.1,route 10.11.0.1,topology net30,ifconfig 10.11.0.202 10.11.0.201' +Sun Jun 17 14:35:02 2012 OPTIONS IMPORT: --ifconfig/up options modified +Sun Jun 17 14:35:02 2012 OPTIONS IMPORT: route options modified +Sun Jun 17 14:35:02 2012 OPTIONS IMPORT: --ip-win32 and/or --dhcp-option options modified +Sun Jun 17 14:35:02 2012 ROUTE default_gateway=192.168.0.1 +Sun Jun 17 14:35:02 2012 TUN/TAP device tun0 opened +Sun Jun 17 14:35:02 2012 TUN/TAP TX queue length set to 100 +Sun Jun 17 14:35:02 2012 do_ifconfig, tt->ipv6=0, tt->did_ifconfig_ipv6_setup=0 +Sun Jun 17 14:35:02 2012 /sbin/ifconfig tun0 10.11.0.202 pointopoint 10.11.0.201 mtu 1500 +Sun Jun 17 14:35:02 2012 /etc/openvpn/update-resolv-conf tun0 1500 1542 10.11.0.202 10.11.0.201 init +dhcp-option DNS 10.11.0.1 +Sun Jun 17 14:35:05 2012 /sbin/route add -net 46.21.99.25 netmask 255.255.255.255 gw 192.168.0.1 +Sun Jun 17 14:35:05 2012 /sbin/route add -net 0.0.0.0 netmask 128.0.0.0 gw 10.11.0.201 +Sun Jun 17 14:35:05 2012 /sbin/route add -net 128.0.0.0 netmask 128.0.0.0 gw 10.11.0.201 +Sun Jun 17 14:35:05 2012 /sbin/route add -net 10.11.0.1 netmask 255.255.255.255 gw 10.11.0.201 +Sun Jun 17 14:35:05 2012 Initialization Sequence Completed +Sun Jun 17 14:34:57 2012 MANAGEMENT: TCP Socket listening on [AF_INET]127.0.0.1:7505 +""" + +import time +import sys + + +def write_output(): + for line in fakeoutput.split('\n'): + sys.stdout.write(line + '\n') + sys.stdout.flush() + #print(line) + time.sleep(0.1) + +if __name__ == "__main__": + write_output() diff --git a/src/leap/tests/mocks/__init__.py b/src/leap/tests/mocks/__init__.py new file mode 100644 index 00000000..06f96870 --- /dev/null +++ b/src/leap/tests/mocks/__init__.py @@ -0,0 +1 @@ +import manager diff --git a/src/leap/tests/mocks/manager.py b/src/leap/tests/mocks/manager.py new file mode 100644 index 00000000..564631cd --- /dev/null +++ b/src/leap/tests/mocks/manager.py @@ -0,0 +1,20 @@ +from mock import Mock + +from eip_client.vpnmanager import OpenVPNManager + +vpn_commands = { + 'status': [ + 'OpenVPN STATISTICS', 'Updated,Mon Jun 25 11:51:21 2012', + 'TUN/TAP read bytes,306170', 'TUN/TAP write bytes,872102', + 'TCP/UDP read bytes,986177', 'TCP/UDP write bytes,439329', + 'Auth read bytes,872102'], + 'state': ['1340616463,CONNECTED,SUCCESS,172.28.0.2,198.252.153.38'], + # XXX add more tests + } + + +def get_openvpn_manager_mocks(): + manager = OpenVPNManager() + manager.status = Mock(return_value='\n'.join(vpn_commands['status'])) + manager.state = Mock(return_value=vpn_commands['state'][0]) + return manager diff --git a/src/leap/utils/__init__.py b/src/leap/utils/__init__.py new file mode 100644 index 00000000..e69de29b --- /dev/null +++ b/src/leap/utils/__init__.py diff --git a/src/leap/utils/coroutines.py b/src/leap/utils/coroutines.py new file mode 100644 index 00000000..5e25eb63 --- /dev/null +++ b/src/leap/utils/coroutines.py @@ -0,0 +1,107 @@ +# the problem of watching a stdout pipe from +# openvpn binary: using subprocess and coroutines +# acting as event consumers + +from __future__ import division, print_function + +from subprocess import PIPE, Popen +import sys +from threading import Thread + +ON_POSIX = 'posix' in sys.builtin_module_names + + +# +# Coroutines goodies +# + +def coroutine(func): + def start(*args, **kwargs): + cr = func(*args, **kwargs) + cr.next() + return cr + return start + + +@coroutine +def process_events(callback): + """ + coroutine loop that receives + events sent and dispatch the callback. + :param callback: callback to be called\ +for each event + :type callback: callable + """ + try: + while True: + m = (yield) + if callable(callback): + callback(m) + else: + #XXX log instead + print('not a callable passed') + except GeneratorExit: + return + +# +# Threads +# + + +def launch_thread(target, args): + """ + launch and demonize thread. + :param target: target function that will run in thread + :type target: function + :param args: args to be passed to thread + :type args: list + """ + t = Thread(target=target, + args=args) + t.daemon = True + t.start() + return t + + +def watch_output(out, observers): + """ + initializes dict of observer coroutines + and pushes lines to each of them as they are received + from the watched output. + :param out: stdout of a process. + :type out: fd + :param observers: tuple of coroutines to send data\ +for each event + :type ovservers: tuple + """ + observer_dict = {observer: process_events(observer) + for observer in observers} + for line in iter(out.readline, b''): + for obs in observer_dict: + observer_dict[obs].send(line) + out.close() + + +def spawn_and_watch_process(command, args, observers=None): + """ + spawns a subprocess with command, args, and launch + a watcher thread. + :param command: command to be executed in the subprocess + :type command: str + :param args: arguments + :type args: list + :param observers: tuple of observer functions to be called \ +for each line in the subprocess output. + :type observers: tuple + :return: a tuple containing the child process instance, and watcher_thread, + :rtype: (Subprocess, Thread) + """ + subp = Popen([command] + args, + stdout=PIPE, + stderr=PIPE, + bufsize=1, + close_fds=ON_POSIX) + watcher = launch_thread( + watch_output, + (subp.stdout, observers)) + return subp, watcher diff --git a/src/leap/utils/leap_argparse.py b/src/leap/utils/leap_argparse.py new file mode 100644 index 00000000..9c355134 --- /dev/null +++ b/src/leap/utils/leap_argparse.py @@ -0,0 +1,20 @@ +import argparse + + +def build_parser(): + epilog = "Copyright 2012 The Leap Project" + parser = argparse.ArgumentParser(description=""" +Launches main LEAP Client""", epilog=epilog) + parser.add_argument('--debug', action="store_true", + help='launches in debug mode') + parser.add_argument('--config', metavar="CONFIG FILE", nargs='?', + action="store", dest="config_file", + type=argparse.FileType('r'), + help='optional config file') + return parser + + +def init_leapc_args(): + parser = build_parser() + opts = parser.parse_args() + return parser, opts |