Introduce webkit_glue bridges for the new WebSocket Implementation.

content/child/websocket_bridge.cc

+// Copyright (c) 2013 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 "content/child/websocket_bridge.h"
+
+#include <stdint.h>
+#include <string>
+#include <vector>
+
+#include "base/logging.h"
+#include "base/strings/string_util.h"
+#include "content/child/child_thread.h"
+#include "content/child/websocket_dispatcher.h"
+#include "content/common/websocket.h"
+#include "content/common/websocket_messages.h"
+#include "ipc/ipc_message.h"
+#include "ipc/ipc_message_macros.h"
+#include "url/gurl.h"
+#include "third_party/WebKit/public/platform/WebSocketHandle.h"
+#include "third_party/WebKit/public/platform/WebSocketHandleClient.h"
+#include "third_party/WebKit/public/platform/WebString.h"
+#include "third_party/WebKit/public/platform/WebURL.h"
+#include "third_party/WebKit/public/platform/WebVector.h"
+
+using WebKit::WebSocketHandle;
+using WebKit::WebSocketHandleClient;
+using WebKit::WebString;
+using WebKit::WebURL;
+using WebKit::WebVector;
+
+namespace content {
+
+WebSocketBridge::WebSocketBridge()
+    : channel_id_(kInvalidChannelId), client_(NULL) {}
+
+WebSocketBridge::~WebSocketBridge() {
+  Disconnect();
+}
+
+bool WebSocketBridge::OnMessageReceived(const IPC::Message& msg) {
+  bool handled = true;
+  IPC_BEGIN_MESSAGE_MAP(WebSocketBridge, msg)
+    IPC_MESSAGE_HANDLER(WebSocketMsg_AddChannelResponse, DidConnect)
+    IPC_MESSAGE_HANDLER(WebSocketMsg_SendFrame, DidReceiveData)
+    IPC_MESSAGE_HANDLER(WebSocketMsg_FlowControl, DidReceiveFlowControl)
+    IPC_MESSAGE_HANDLER(WebSocketMsg_DropChannel, DidClose)
+    IPC_MESSAGE_UNHANDLED(handled = false)
+  IPC_END_MESSAGE_MAP()
+  return handled;
+}
+
+void WebSocketBridge::DidConnect(bool fail,
+                                 const std::string& selected_protocol,
+                                 const std::string& extensions) {
+  WebSocketHandleClient* client = client_;
+  DVLOG(1) << "WebSocketBridge::DidConnect("
+           << fail << ", "
+           << selected_protocol << ", "
+           << extensions << ")";
+  if (fail)
+    Disconnect();
+  if (!client)
+    return;
+
+  WebString protocol_to_pass = WebString::fromUTF8(selected_protocol);
+  WebString extensions_to_pass = WebString::fromUTF8(extensions);
+  client->didConnect(this, fail, protocol_to_pass, extensions_to_pass);
+  // |this| can be deleted here.
+}
+
+void WebSocketBridge::DidReceiveData(bool fin,
+                                     WebSocketMessageType type,
+                                     const std::vector<char>& data) {
+  DVLOG(1) << "WebSocketBridge::DidReceiveData("
+           << fin << ", "
+           << type << ", "
+           << "(data size = " << data.size() << "))";
+  if (!client_)
+    return;
+
+  WebSocketHandle::MessageType type_to_pass =
+      WebSocketHandle::MessageTypeContinuation;
+  switch (type) {
+    case WEB_SOCKET_MESSAGE_TYPE_CONTINUATION:
+      type_to_pass = WebSocketHandle::MessageTypeContinuation;
+      break;
+    case WEB_SOCKET_MESSAGE_TYPE_TEXT:
+      type_to_pass = WebSocketHandle::MessageTypeText;
+      break;
+    case WEB_SOCKET_MESSAGE_TYPE_BINARY:
+      type_to_pass = WebSocketHandle::MessageTypeBinary;
+      break;
+  }
+  const char* data_to_pass = data.empty() ? NULL : &data[0];
+  client_->didReceiveData(this, fin, type_to_pass, data_to_pass, data.size());
+  // |this| can be deleted here.
+}
+
+void WebSocketBridge::DidReceiveFlowControl(int64_t quota) {
+  DVLOG(1) << "WebSocketBridge::DidReceiveFlowControl(" << quota << ")";
+  if (!client_)
+    return;
+
+  client_->didReceiveFlowControl(this, quota);
+  // |this| can be deleted here.
+}
+
+void WebSocketBridge::DidClose(unsigned short code,
+                               const std::string& reason) {
+  DVLOG(1) << "WebSocketBridge::DidClose("
+           << code << ", "
+           << reason << ")";
+  WebSocketHandleClient* client = client_;
+  Disconnect();
+  if (!client)
+    return;
+
+  WebString reason_to_pass = WebString::fromUTF8(reason);
+  client->didClose(this, code, reason_to_pass);
+  // |this| can be deleted here.
+}
+
+void WebSocketBridge::connect(
+    const WebURL& url,
+    const WebVector<WebString>& protocols,
+    const WebString& origin,
+    WebSocketHandleClient* client) {
+  DCHECK_EQ(kInvalidChannelId, channel_id_);
+  WebSocketDispatcher* dispatcher =
+      ChildThread::current()->websocket_dispatcher();
+  channel_id_ = dispatcher->AddBridge(this);
+  client_ = client;
+
+  std::vector<std::string> protocols_to_pass;
+  for (size_t i = 0; i < protocols.size(); ++i)
+    protocols_to_pass.push_back(protocols[i].utf8());
+  GURL origin_to_pass(origin.utf8());
+
+  DVLOG(1) << "Bridge#" << channel_id_ << " Connect("
+           << url << ", (" << JoinString(protocols_to_pass, ", ") << "), "
+           << origin_to_pass << ")";
+
+  ChildThread::current()->Send(
+      new WebSocketHostMsg_AddChannelRequest(channel_id_,
+                                             url,
+                                             protocols_to_pass,
+                                             origin_to_pass));
+}
+
+void WebSocketBridge::send(bool fin,
+                           WebSocketHandle::MessageType type,
+                           const char* data,
+                           size_t size) {
+  if (channel_id_ == kInvalidChannelId)
+    return;
+
+  WebSocketMessageType type_to_pass = WEB_SOCKET_MESSAGE_TYPE_CONTINUATION;
+  switch (type) {
+    case WebSocketHandle::MessageTypeContinuation:
+      type_to_pass = WEB_SOCKET_MESSAGE_TYPE_CONTINUATION;
+      break;
+    case WebSocketHandle::MessageTypeText:
+      type_to_pass = WEB_SOCKET_MESSAGE_TYPE_TEXT;
+      break;
+    case WebSocketHandle::MessageTypeBinary:
+      type_to_pass = WEB_SOCKET_MESSAGE_TYPE_BINARY;
+      break;
+  }
+
+  DVLOG(1) << "Bridge #" << channel_id_ << " Send("
+           << fin << ", " << type_to_pass << ", "
+           << "(data size = "  << size << "))";
+
+  ChildThread::current()->Send(
+      new WebSocketMsg_SendFrame(channel_id_,
+                                 fin,
+                                 type_to_pass,
+                                 std::vector<char>(data, data + size)));
+}
+
+void WebSocketBridge::flowControl(int64_t quota) {
+  if (channel_id_ == kInvalidChannelId)
+    return;
+
+  DVLOG(1) << "Bridge #" << channel_id_ << " FlowControl(" << quota << ")";
+
+  ChildThread::current()->Send(
+      new WebSocketMsg_FlowControl(channel_id_, quota));
+}
+
+void WebSocketBridge::close(unsigned short code,
+                            const WebString& reason) {
+  if (channel_id_ == kInvalidChannelId)
+    return;
+
+  std::string reason_to_pass = reason.utf8();
+  DVLOG(1) << "Bridge #" << channel_id_ << " Close("
+           << code << ", " << reason_to_pass << ")";
+  ChildThread::current()->Send(
+      new WebSocketMsg_DropChannel(channel_id_, code, reason_to_pass));
+}
+
+void WebSocketBridge::Disconnect() {
+  if (channel_id_ == kInvalidChannelId)
+    return;
+  WebSocketDispatcher* dispatcher =
+      ChildThread::current()->websocket_dispatcher();
+  dispatcher->RemoveBridge(channel_id_);
+
+  channel_id_ = kInvalidChannelId;
+  client_ = NULL;
+}
+
+}  // namespace content