Chromoting protocol layers to receive and send login messages

remoting/protocol/host_message_dispatcher.cc

 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/ref_counted.h"
 #include "net/base/io_buffer.h"
 #include "remoting/proto/control.pb.h"
 #include "remoting/proto/event.pb.h"
 #include "remoting/proto/internal.pb.h"
 #include "remoting/protocol/host_message_dispatcher.h"
 #include "remoting/protocol/host_stub.h"
 #include "remoting/protocol/input_stub.h"
 #include "remoting/protocol/message_reader.h"
+#include "remoting/protocol/ref_counted_message.h"
 #include "remoting/protocol/session.h"
 
-namespace {
-
-// A single protobuf can contain multiple messages that will be handled by
-// different message handlers.  We use this wrapper to ensure that the
-// protobuf is only deleted after all the handlers have finished executing.
-template <typename T>
-class RefCountedMessage : public base::RefCounted<RefCountedMessage<T> > {
- public:
-  RefCountedMessage(T* message) : message_(message) { }
-
-  T* message() { return message_.get(); }
-
- private:
-  scoped_ptr<T> message_;
-};
-
-// Dummy methods to destroy messages.
-template <class T>
-static void DeleteMessage(scoped_refptr<T> message) { }
-
-template <class T>
-static Task* NewDeleteTask(scoped_refptr<T> message) {
-  return NewRunnableFunction(&DeleteMessage<T>, message);
-}
-
-}  // namespace
-
 namespace remoting {
 namespace protocol {
 
 HostMessageDispatcher::HostMessageDispatcher() :
     host_stub_(NULL),
     input_stub_(NULL) {
 }
 
 HostMessageDispatcher::~HostMessageDispatcher() {
 }
 
-bool HostMessageDispatcher::Initialize(
+void HostMessageDispatcher::Initialize(
     protocol::Session* session,
     HostStub* host_stub, InputStub* input_stub) {
   if (!session || !host_stub || !input_stub ||
       !session->event_channel() || !session->control_channel()) {
-    return false;
+    return;
   }
 
   control_message_reader_.reset(new MessageReader());
   event_message_reader_.reset(new MessageReader());
   host_stub_ = host_stub;
   input_stub_ = input_stub;
 
   // Initialize the readers on the sockets provided by channels.
   event_message_reader_->Init<EventMessage>(
       session->event_channel(),
       NewCallback(this, &HostMessageDispatcher::OnEventMessageReceived));
   control_message_reader_->Init<ControlMessage>(
       session->control_channel(),
       NewCallback(this, &HostMessageDispatcher::OnControlMessageReceived));
-  return true;
 }
 
 void HostMessageDispatcher::OnControlMessageReceived(ControlMessage* message) {
   scoped_refptr<RefCountedMessage<ControlMessage> > ref_msg =
       new RefCountedMessage<ControlMessage>(message);
   if (message->has_suggest_resolution()) {
     host_stub_->SuggestResolution(
         &message->suggest_resolution(), NewDeleteTask(ref_msg));
+  } else if (message->has_begin_session_request()) {
+    host_stub_->BeginSessionRequest(
+        &message->begin_session_request().credentials(),
+        NewDeleteTask(ref_msg));
+  } else {
+    NOTREACHED() << "Invalid control message received";
   }
 }
 
 void HostMessageDispatcher::OnEventMessageReceived(
     EventMessage* message) {
   scoped_refptr<RefCountedMessage<EventMessage> > ref_msg =
       new RefCountedMessage<EventMessage>(message);
   for (int i = 0; i < message->event_size(); ++i) {
     if (message->event(i).has_key()) {
       input_stub_->InjectKeyEvent(
           &message->event(i).key(), NewDeleteTask(ref_msg));
     }
     if (message->event(i).has_mouse()) {
       input_stub_->InjectMouseEvent(
           &message->event(i).mouse(), NewDeleteTask(ref_msg));
     }
   }
 }
 
 }  // namespace protocol
 }  // namespace remoting