import os import subprocess from threading import Thread import distutils import stem from stem.control import Controller import settings import state import utils import logging logger = logging.getLogger(__name__) class TorDaemon(Thread): def __init__(self): self._status = [] Thread.__init__(self) self.daemon = True self.start() def create_torrc(self): defaults = os.path.join(settings.config_path, 'torrc-defaults') torrc = os.path.join(settings.config_path, 'torrc') if not os.path.exists(defaults): with open(defaults, 'w') as fd: fd.write(''' AvoidDiskWrites 1 # Where to send logging messages. Format is minSeverity[-maxSeverity] # (stderr|stdout|syslog|file FILENAME). Log notice stdout SocksPort 9830 ControlPort 9831 CookieAuthentication 1 '''.strip()) if not os.path.exists(torrc): with open(torrc, 'w') as fd: fd.write(''' DataDirectory {base}/TorData DirReqStatistics 0 '''.strip().format(base=settings.config_path)) return defaults, torrc def get_tor(self): def cmd_exists(cmd): return subprocess.call("type " + cmd, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE) == 0 for path in ( '/Applications/TorBrowser.app/TorBrowser/Tor/tor', ): if os.path.isfile(path) and os.access(path, os.X_OK): return path start = os.path.expanduser('~/.local/share/applications/start-tor-browser.desktop') if os.path.exists(start): with open(start) as fd: e = [line for line in fd.read().split('\n') if line.startswith('Exec')] if e: try: base = os.path.dirname(e[0].split('"')[1]) path = os.path.join(base, 'TorBrowser', 'Tor', 'tor') if os.path.isfile(path) and os.access(path, os.X_OK): return path except: pass return distutils.spawn.find_executable('tor') def run(self): defaults, torrc = self.create_torrc() tor = self.get_tor() if not tor: self._status.append('No tor binary found. Please install TorBrowser or tor') else: cmd = [tor, '--defaults-torrc', defaults, '-f', torrc] self.p = subprocess.Popen(cmd, stdout=subprocess.PIPE, bufsize=1, universal_newlines=True) for line in self.p.stdout: self._status.append(line) logger.debug(line) self.p = None def shutdown(self): if self.p: self.p.kill() def status(self, max_lines=50): return ''.join(self._status[-max_lines:]) class Tor(object): _shutdown = False connected = False controller = None daemon = None socks_port = 9150 def __init__(self): if not self.connect(): self.reconnect() def connect(self): self.connected = False self.dir = os.path.join(settings.config_path, 'tor') connected = False for port in (9831, 9151): try: self.controller = Controller.from_port('127.0.0.1', port) connected = True break except stem.SocketError: pass if not connected: if not self.daemon: logger.debug("start own tor process") self.daemon = TorDaemon() logger.debug("daemon %s", self.daemon) return self.connect() logger.debug("Failed to connect to system or own tor process.") return False try: self.controller.authenticate() except stem.connection.MissingPassword: logger.debug("TOR requires a password") return False except stem.connection.PasswordAuthFailed: logger.debug("invalid tor password") return False self.controller.add_event_listener(self.event_listener) self.controller.add_status_listener(self.status_listener) self.connected = True self.socks_port = int(self.controller.get_conf('SocksPort').split(' ')[0]) self.publish() state.online = self.is_online() return True def reconnect(self): if not self.connect(): if state.main: state.main.call_later(1, self.reconnect) def status_listener(self, controller, status, timestamp): if status == 'Closed': if not self._shutdown: self.connected = False state.online = False self.reconnect() else: logger.debug('unknonw change %s', status) def event_listener(self, event): print('EVENT', event) def shutdown(self): self._shutdown = True try: self.unpublish() if self.controller: #self.controller.remove_event_listener(self.connection_change) self.controller.close() if self.daemon: self.daemon.shutdown() except: logger.debug('shutdown exception', exc_info=1) pass self.connected = False def publish(self): logger.debug("publish tor node") if not self.connected: return False controller = self.controller logger.debug("FIXME: dont remove/add service if already defined") controller.remove_hidden_service(self.dir) result = controller.create_hidden_service( self.dir, settings.server_defaults['node_port'], target_port=settings.server['node_port'] ) logger.debug('published node as https://%s:%s', result.hostname, settings.server_defaults['node_port']) ''' with open(settings.ssl_key_path) as fd: key_content = fd.read() ports = {9851: settings.server['node_port']} response = controller.create_ephemeral_hidden_service(ports, key_type='RSA1024', key_content=key_content, detached=True, await_publication = True) logger.debug('published node as https://%s.onion:%s', settings.USER_ID, settings.server_defaults['node_port']) ''' def unpublish(self): if not self.connected: return False if self.controller: self.controller.remove_hidden_service(self.dir) state.online = False def is_online(self): return self.connected and self.controller.is_alive() and utils.can_connect_dns()