1 files changed, 152 insertions, 0 deletions
diff --git a/src/leap/bitmask/core/web/service.py b/src/leap/bitmask/core/web/service.py
new file mode 100644
index 0000000..2437d2d
--- /dev/null
+++ b/src/leap/bitmask/core/web/service.py
@@ -0,0 +1,152 @@
+# -*- 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://www.gnu.org/licenses/>.
+
+"""
+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/bonafide/user',
+    )
+
+    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):
+        # TODO refactor this, too long----------------------------------------
+        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))
+        protected_api = protectedResourceFactory(
+            api, self._core.tokens, self.API_WHITELIST)
+
+        root = File(webdir)
+        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()
+        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