From f4503842fdc288fb6336211099ad0a8d01165df3 Mon Sep 17 00:00:00 2001
From: Kali Kaneko <kali@leap.se>
Date: Fri, 4 Mar 2016 12:02:26 -0400
Subject: [feature] landing of bitmask.core

---
 src/leap/bitmask/core/websocket.py | 98 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 98 insertions(+)
 create mode 100644 src/leap/bitmask/core/websocket.py

(limited to 'src/leap/bitmask/core/websocket.py')

diff --git a/src/leap/bitmask/core/websocket.py b/src/leap/bitmask/core/websocket.py
new file mode 100644
index 00000000..5569c6c7
--- /dev/null
+++ b/src/leap/bitmask/core/websocket.py
@@ -0,0 +1,98 @@
+# -*- coding: utf-8 -*-
+# websocket.py
+# Copyright (C) 2015, 2016 LEAP
+#
+# 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/>.
+
+"""
+WebSockets Dispatcher Service.
+"""
+
+import os
+import pkg_resources
+
+from twisted.internet import reactor
+from twisted.application import service
+
+from twisted.web.server import Site
+from twisted.web.static import File
+
+from autobahn.twisted.resource import WebSocketResource
+from autobahn.twisted.websocket import WebSocketServerFactory
+from autobahn.twisted.websocket import WebSocketServerProtocol
+
+from leap.bitmask.core.dispatcher import CommandDispatcher
+
+
+class WebSocketsDispatcherService(service.Service):
+
+    """
+    A Dispatcher for BitmaskCore exposing a WebSockets Endpoint.
+    """
+
+    def __init__(self, core, port=8080, debug=False):
+        self._core = core
+        self.port = port
+        self.debug = debug
+
+    def startService(self):
+
+        factory = WebSocketServerFactory(u"ws://127.0.0.1:%d" % self.port,
+                                         debug=self.debug)
+        factory.protocol = DispatcherProtocol
+        factory.protocol.dispatcher = CommandDispatcher(self._core)
+
+        # FIXME: Site.start/stopFactory should start/stop factories wrapped as
+        # Resources
+        factory.startFactory()
+
+        resource = WebSocketResource(factory)
+
+        # we server static files under "/" ..
+        webdir = os.path.abspath(
+            pkg_resources.resource_filename("leap.bitmask.core", "web"))
+        root = File(webdir)
+
+        # and our WebSocket server under "/ws"
+        root.putChild(u"bitmask", resource)
+
+        # both under one Twisted Web Site
+        site = Site(root)
+
+        self.site = site
+        self.factory = factory
+
+        self.listener = reactor.listenTCP(self.port, site)
+
+    def stopService(self):
+        self.factory.stopFactory()
+        self.site.stopFactory()
+        self.listener.stopListening()
+
+
+class DispatcherProtocol(WebSocketServerProtocol):
+
+    def onMessage(self, msg, binary):
+        parts = msg.split()
+        r = self.dispatcher.dispatch(parts)
+        r.addCallback(self.defer_reply, binary)
+
+    def reply(self, response, binary):
+        self.sendMessage(response, binary)
+
+    def defer_reply(self, response, binary):
+        reactor.callLater(0, self.reply, response, binary)
+
+    def _get_service(self, name):
+        return self.core.getServiceNamed(name)
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