content/child/socket_stream_dispatcher.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "content/child/socket_stream_dispatcher.h"
   6
   7 #include <vector>
   8
   9 #include "base/bind.h"
  10 #include "base/id_map.h"
  11 #include "base/lazy_instance.h"
  12 #include "base/memory/ref_counted.h"
  13 #include "base/message_loop/message_loop.h"
  14 #include "base/strings/string16.h"
  15 #include "base/strings/utf_string_conversions.h"
  16 #include "content/child/child_thread.h"
  17 #include "content/child/web_socket_stream_handle_bridge.h"
  18 #include "content/child/web_socket_stream_handle_delegate.h"
  19 #include "content/child/web_socket_stream_handle_impl.h"
  20 #include "content/common/socket_stream.h"
  21 #include "content/common/socket_stream_handle_data.h"
  22 #include "content/common/socket_stream_messages.h"
  23 #include "net/base/net_errors.h"
  24 #include "url/gurl.h"
  25
  26 namespace content {
  27
  28 // IPCWebSocketStreamHandleBridge is owned by each SocketStreamHandle.
  29 // It communicates with the main browser process via SocketStreamDispatcher.
  30 class IPCWebSocketStreamHandleBridge : public WebSocketStreamHandleBridge {
  31  public:
  32   IPCWebSocketStreamHandleBridge(blink::WebSocketStreamHandle* handle,
  33                                  WebSocketStreamHandleDelegate* delegate)
  34       : socket_id_(kNoSocketId), handle_(handle), delegate_(delegate) {}
  35
  36   // Returns the handle having given id or NULL if there is no such handle.
  37   static IPCWebSocketStreamHandleBridge* FromSocketId(int id);
  38
  39   // WebSocketStreamHandleBridge methods.
  40   virtual void Connect(const GURL& url) OVERRIDE;
  41   virtual bool Send(const std::vector<char>& data) OVERRIDE;
  42   virtual void Close() OVERRIDE;
  43
  44   // Called by SocketStreamDispatcher.
  45   void OnConnected(int max_amount_send_allowed);
  46   void OnSentData(int amount_sent);
  47   void OnReceivedData(const std::vector<char>& data);
  48   void OnClosed();
  49   void OnFailed(int error_code, const char* error_msg);
  50
  51  private:
  52   virtual ~IPCWebSocketStreamHandleBridge();
  53
  54   // The ID for this bridge and corresponding SocketStream instance in the
  55   // browser process.
  56   int socket_id_;
  57
  58   blink::WebSocketStreamHandle* handle_;
  59   WebSocketStreamHandleDelegate* delegate_;
  60
  61   // Map from ID to bridge instance.
  62   static base::LazyInstance<IDMap<IPCWebSocketStreamHandleBridge> >::Leaky
  63       all_bridges;
  64 };
  65
  66 // static
  67 base::LazyInstance<IDMap<IPCWebSocketStreamHandleBridge> >::Leaky
  68     IPCWebSocketStreamHandleBridge::all_bridges = LAZY_INSTANCE_INITIALIZER;
  69
  70 /* static */
  71 IPCWebSocketStreamHandleBridge* IPCWebSocketStreamHandleBridge::FromSocketId(
  72     int id) {
  73   return all_bridges.Get().Lookup(id);
  74 }
  75
  76 IPCWebSocketStreamHandleBridge::~IPCWebSocketStreamHandleBridge() {
  77   DVLOG(1) << "Bridge (" << this << ", socket_id_=" << socket_id_
  78            << ") Destructor";
  79
  80   if (socket_id_ == kNoSocketId)
  81     return;
  82
  83   ChildThread::current()->Send(new SocketStreamHostMsg_Close(socket_id_));
  84   socket_id_ = kNoSocketId;
  85 }
  86
  87 void IPCWebSocketStreamHandleBridge::Connect(const GURL& url) {
  88   DVLOG(1) << "Bridge (" << this << ") Connect (url=" << url << ")";
  89
  90   DCHECK_EQ(socket_id_, kNoSocketId);
  91   if (delegate_)
  92     delegate_->WillOpenStream(handle_, url);
  93
  94   socket_id_ = all_bridges.Get().Add(this);
  95   DCHECK_NE(socket_id_, kNoSocketId);
  96   int render_frame_id = MSG_ROUTING_NONE;
  97   WebSocketStreamHandleImpl* impl =
  98       static_cast<WebSocketStreamHandleImpl*>(handle_);
  99   const SocketStreamHandleData* data =
 100       static_cast<SocketStreamHandleData*>(impl->GetUserData(handle_));
 101   if (data)
 102     render_frame_id = data->render_frame_id();
 103   AddRef();  // Released in OnClosed().
 104   ChildThread::current()->Send(
 105       new SocketStreamHostMsg_Connect(render_frame_id, url, socket_id_));
 106   DVLOG(1) << "Bridge #" << socket_id_ << " sent IPC Connect";
 107   // TODO(ukai): timeout to OnConnected.
 108 }
 109
 110 bool IPCWebSocketStreamHandleBridge::Send(const std::vector<char>& data) {
 111   DVLOG(1) << "Bridge #" << socket_id_ << " Send (" << data.size()
 112            << " bytes)";
 113
 114   ChildThread::current()->Send(
 115       new SocketStreamHostMsg_SendData(socket_id_, data));
 116   if (delegate_)
 117     delegate_->WillSendData(handle_, &data[0], data.size());
 118   return true;
 119 }
 120
 121 void IPCWebSocketStreamHandleBridge::Close() {
 122   DVLOG(1) << "Bridge #" << socket_id_ << " Close";
 123
 124   ChildThread::current()->Send(new SocketStreamHostMsg_Close(socket_id_));
 125 }
 126
 127 void IPCWebSocketStreamHandleBridge::OnConnected(int max_pending_send_allowed) {
 128   DVLOG(1) << "Bridge #" << socket_id_
 129            << " OnConnected (max_pending_send_allowed="
 130            << max_pending_send_allowed << ")";
 131
 132   if (delegate_)
 133     delegate_->DidOpenStream(handle_, max_pending_send_allowed);
 134 }
 135
 136 void IPCWebSocketStreamHandleBridge::OnSentData(int amount_sent) {
 137   DVLOG(1) << "Bridge #" << socket_id_ << " OnSentData (" << amount_sent
 138            << " bytes)";
 139
 140   if (delegate_)
 141     delegate_->DidSendData(handle_, amount_sent);
 142 }
 143
 144 void IPCWebSocketStreamHandleBridge::OnReceivedData(
 145     const std::vector<char>& data) {
 146   DVLOG(1) << "Bridge #" << socket_id_ << " OnReceiveData (" << data.size()
 147            << " bytes)";
 148   if (delegate_)
 149     delegate_->DidReceiveData(handle_, &data[0], data.size());
 150 }
 151
 152 void IPCWebSocketStreamHandleBridge::OnClosed() {
 153   DVLOG(1) << "Bridge #" << socket_id_ << " OnClosed";
 154
 155   if (socket_id_ != kNoSocketId) {
 156     all_bridges.Get().Remove(socket_id_);
 157     socket_id_ = kNoSocketId;
 158   }
 159   if (delegate_)
 160     delegate_->DidClose(handle_);
 161   delegate_ = NULL;
 162   Release();
 163 }
 164
 165 void IPCWebSocketStreamHandleBridge::OnFailed(int error_code,
 166                                               const char* error_msg) {
 167   DVLOG(1) << "Bridge #" << socket_id_ << " OnFailed (error_code=" << error_code
 168            << ")";
 169   if (delegate_)
 170     delegate_->DidFail(handle_, error_code, base::ASCIIToUTF16(error_msg));
 171 }
 172
 173 SocketStreamDispatcher::SocketStreamDispatcher() {
 174 }
 175
 176 // static
 177 WebSocketStreamHandleBridge* SocketStreamDispatcher::CreateBridge(
 178     blink::WebSocketStreamHandle* handle,
 179     WebSocketStreamHandleDelegate* delegate) {
 180   return new IPCWebSocketStreamHandleBridge(handle, delegate);
 181 }
 182
 183 bool SocketStreamDispatcher::OnMessageReceived(const IPC::Message& msg) {
 184   bool handled = true;
 185   IPC_BEGIN_MESSAGE_MAP(SocketStreamDispatcher, msg)
 186     IPC_MESSAGE_HANDLER(SocketStreamMsg_Connected, OnConnected)
 187     IPC_MESSAGE_HANDLER(SocketStreamMsg_SentData, OnSentData)
 188     IPC_MESSAGE_HANDLER(SocketStreamMsg_ReceivedData, OnReceivedData)
 189     IPC_MESSAGE_HANDLER(SocketStreamMsg_Closed, OnClosed)
 190     IPC_MESSAGE_HANDLER(SocketStreamMsg_Failed, OnFailed)
 191     IPC_MESSAGE_UNHANDLED(handled = false)
 192   IPC_END_MESSAGE_MAP()
 193   return handled;
 194 }
 195
 196 void SocketStreamDispatcher::OnConnected(int socket_id,
 197                                          int max_pending_send_allowed) {
 198   DVLOG(1) << "SocketStreamDispatcher::OnConnected (max_pending_send_allowed="
 199            << max_pending_send_allowed << ") to socket_id=" << socket_id;
 200
 201   IPCWebSocketStreamHandleBridge* bridge =
 202       IPCWebSocketStreamHandleBridge::FromSocketId(socket_id);
 203   if (bridge)
 204     bridge->OnConnected(max_pending_send_allowed);
 205   else
 206     DLOG(ERROR) << "No bridge for socket_id=" << socket_id;
 207 }
 208
 209 void SocketStreamDispatcher::OnSentData(int socket_id, int amount_sent) {
 210   DVLOG(1) << "SocketStreamDispatcher::OnSentData (" << amount_sent
 211            << " bytes) to socket_id=" << socket_id;
 212
 213   IPCWebSocketStreamHandleBridge* bridge =
 214       IPCWebSocketStreamHandleBridge::FromSocketId(socket_id);
 215   if (bridge)
 216     bridge->OnSentData(amount_sent);
 217   else
 218     DLOG(ERROR) << "No bridge for socket_id=" << socket_id;
 219 }
 220
 221 void SocketStreamDispatcher::OnReceivedData(
 222     int socket_id, const std::vector<char>& data) {
 223   DVLOG(1) << "SocketStreamDispatcher::OnReceivedData (" << data.size()
 224            << " bytes) to socket_id=" << socket_id;
 225
 226   IPCWebSocketStreamHandleBridge* bridge =
 227       IPCWebSocketStreamHandleBridge::FromSocketId(socket_id);
 228   if (bridge)
 229     bridge->OnReceivedData(data);
 230   else
 231     DLOG(ERROR) << "No bridge for socket_id=" << socket_id;
 232 }
 233
 234 void SocketStreamDispatcher::OnClosed(int socket_id) {
 235   DVLOG(1) << "SocketStreamDispatcher::OnClosed to socket_id=" << socket_id;
 236
 237   IPCWebSocketStreamHandleBridge* bridge =
 238       IPCWebSocketStreamHandleBridge::FromSocketId(socket_id);
 239   if (bridge)
 240     bridge->OnClosed();
 241   else
 242     DLOG(ERROR) << "No bridge for socket_id=" << socket_id;
 243 }
 244
 245 void SocketStreamDispatcher::OnFailed(int socket_id, int error_code) {
 246   IPCWebSocketStreamHandleBridge* bridge =
 247       IPCWebSocketStreamHandleBridge::FromSocketId(socket_id);
 248   if (bridge)
 249     bridge->OnFailed(error_code, net::ErrorToString(error_code));
 250   else
 251     DLOG(ERROR) << "No bridge for socket_id=" << socket_id;
 252 }
 253
 254 }  // namespace content