# -*- coding: utf-8 -*- # service.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 REST Dispatcher Service. """ import os import pkg_resources from twisted.application import service from twisted.logger import Logger from twisted.internet import endpoints from twisted.internet import reactor from twisted.web.server import Site from twisted.web.static import File from leap.bitmask.core.dispatcher import CommandDispatcher from leap.bitmask.core.web import HAS_WEB_UI from leap.bitmask.core.web.api import Api from leap.bitmask.core.web._auth import protectedResourceFactory from leap.bitmask.util import here try: import txtorcon except ImportError: pass log = Logger() class HTTPDispatcherService(service.Service): """ A Dispatcher for BitmaskCore exposing a REST API. The API itself is served under the API/ route. If the package ``leap.bitmask_js`` is found in the import path, we'll serve the whole JS UI in the root resource too (under the ``public`` path). If that package cannot be found, we'll serve just the javascript wrapper around the REST API. """ API_WHITELIST = ( '/API/core/version', '/API/core/stats', ) def __init__(self, core, port=7070, debug=False, onion=False): self._core = core self.port = port self.debug = debug self.onion = onion self.uri = '' def startService(self): if HAS_WEB_UI: webdir = os.path.abspath( pkg_resources.resource_filename('leap.bitmask_js', 'public')) log.debug('webdir: %s' % webdir) else: log.warn('bitmask_js not found, serving bitmask.core ui') webdir = os.path.abspath( pkg_resources.resource_filename( 'leap.bitmask.core.web', 'static')) jspath = os.path.join( here(), '..', '..', '..', 'ui', 'app', 'lib', 'bitmask.js') jsapi = File(os.path.abspath(jspath)) api = Api(CommandDispatcher(self._core), self._core.global_tokens) root = File(webdir) root.putChild(u'API', api) # XXX remove it we don't bring session tokens again # protected_api = protectedResourceFactory( # api, self._core.global_tokens, self.API_WHITELIST) # root.putChild(u'API', protected_api) if not HAS_WEB_UI: root.putChild('bitmask.js', jsapi) factory = Site(root) self.site = factory if self.onion and _has_txtorcon(): self._start_onion_service(factory) else: interface = '127.0.0.1' endpoint = endpoints.TCP4ServerEndpoint( reactor, self.port, interface=interface) self.uri = 'https://%s:%s' % (interface, self.port) endpoint.listen(factory) # TODO this should be set in a callback to the listen call self.running = True def _start_onion_service(self, factory): def progress(percent, tag, message): bar = int(percent / 10) log.debug('[%s%s] %s' % ('#' * bar, '.' * (10 - bar), message)) def setup_complete(port): port = txtorcon.IHiddenService(port) self.uri = "http://%s" % (port.getHost().onion_uri) log.info('I have set up a hidden service, advertised at: %s' % self.uri) log.info('locally listening on %s' % port.local_address.getHost()) def setup_failed(args): log.error('onion service setup FAILED: %r' % args) endpoint = endpoints.serverFromString(reactor, 'onion:80') txtorcon.IProgressProvider(endpoint).add_progress_listener(progress) d = endpoint.listen(factory) d.addCallback(setup_complete) d.addErrback(setup_failed) return d def stopService(self): self.site.stopFactory() if hasattr(self, 'listener'): self.listener.stopListening() self.running = False def do_status(self): status = 'running' if self.running else 'disabled' return {'web': status, 'uri': self.uri} def _has_txtorcon(): try: import txtorcon txtorcon except ImportError: log.error('onion is enabled, but could not find txtorcon') return False return True