Revert "Port WebSockets to Mojo IPC"

content/child/websocket_bridge.cc

+// Copyright 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 <utility>
+#include <vector>
+
+#include "base/logging.h"
+#include "base/strings/string_util.h"
+#include "content/child/child_thread_impl.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 "third_party/WebKit/public/platform/WebSecurityOrigin.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"
+#include "third_party/WebKit/public/platform/modules/websockets/WebSocketHandle.h"
+#include "third_party/WebKit/public/platform/modules/websockets/WebSocketHandleClient.h"
+#include "third_party/WebKit/public/platform/modules/websockets/WebSocketHandshakeRequestInfo.h"
+#include "third_party/WebKit/public/platform/modules/websockets/WebSocketHandshakeResponseInfo.h"
+#include "url/gurl.h"
+#include "url/origin.h"
+
+using blink::WebSecurityOrigin;
+using blink::WebSocketHandle;
+using blink::WebSocketHandleClient;
+using blink::WebString;
+using blink::WebURL;
+using blink::WebVector;
+
+namespace content {
+
+namespace {
+
+const unsigned short kAbnormalShutdownOpCode = 1006;
+
+}  // namespace
+
+WebSocketBridge::WebSocketBridge()
+    : channel_id_(kInvalidChannelId),
+      render_frame_id_(MSG_ROUTING_NONE),
+      client_(NULL) {}
+
+WebSocketBridge::~WebSocketBridge() {
+  if (channel_id_ != kInvalidChannelId) {
+    // The connection is abruptly disconnected by the renderer without
+    // closing handshake.
+    ChildThreadImpl::current()->Send(
+        new WebSocketMsg_DropChannel(channel_id_,
+                                     false,
+                                     kAbnormalShutdownOpCode,
+                                     std::string()));
+  }
+  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_NotifyStartOpeningHandshake,
+                        DidStartOpeningHandshake)
+    IPC_MESSAGE_HANDLER(WebSocketMsg_NotifyFinishOpeningHandshake,
+                        DidFinishOpeningHandshake)
+    IPC_MESSAGE_HANDLER(WebSocketMsg_NotifyFailure, DidFail)
+    IPC_MESSAGE_HANDLER(WebSocketMsg_SendFrame, DidReceiveData)
+    IPC_MESSAGE_HANDLER(WebSocketMsg_FlowControl, DidReceiveFlowControl)
+    IPC_MESSAGE_HANDLER(WebSocketMsg_DropChannel, DidClose)
+    IPC_MESSAGE_HANDLER(WebSocketMsg_NotifyClosing,
+                        DidStartClosingHandshake)
+    IPC_MESSAGE_UNHANDLED(handled = false)
+  IPC_END_MESSAGE_MAP()
+  return handled;
+}
+
+void WebSocketBridge::DidConnect(const std::string& selected_protocol,
+                                 const std::string& extensions) {
+  WebSocketHandleClient* client = client_;
+  DVLOG(1) << "WebSocketBridge::DidConnect("
+           << selected_protocol << ", "
+           << extensions << ")";
+  if (!client)
+    return;
+
+  WebString protocol_to_pass = WebString::fromUTF8(selected_protocol);
+  WebString extensions_to_pass = WebString::fromUTF8(extensions);
+  client->didConnect(this, protocol_to_pass, extensions_to_pass);
+  // |this| can be deleted here.
+}
+
+void WebSocketBridge::DidStartOpeningHandshake(
+    const WebSocketHandshakeRequest& request) {
+  DVLOG(1) << "WebSocketBridge::DidStartOpeningHandshake("
+           << request.url << ")";
+  // All strings are already encoded to ASCII in the browser.
+  blink::WebSocketHandshakeRequestInfo request_to_pass;
+  request_to_pass.setURL(WebURL(request.url));
+  for (size_t i = 0; i < request.headers.size(); ++i) {
+    const std::pair<std::string, std::string>& header = request.headers[i];
+    request_to_pass.addHeaderField(WebString::fromLatin1(header.first),
+                                   WebString::fromLatin1(header.second));
+  }
+  request_to_pass.setHeadersText(WebString::fromLatin1(request.headers_text));
+  client_->didStartOpeningHandshake(this, request_to_pass);
+}
+
+void WebSocketBridge::DidFinishOpeningHandshake(
+    const WebSocketHandshakeResponse& response) {
+  DVLOG(1) << "WebSocketBridge::DidFinishOpeningHandshake("
+           << response.url << ")";
+  // All strings are already encoded to ASCII in the browser.
+  blink::WebSocketHandshakeResponseInfo response_to_pass;
+  response_to_pass.setStatusCode(response.status_code);
+  response_to_pass.setStatusText(WebString::fromLatin1(response.status_text));
+  for (size_t i = 0; i < response.headers.size(); ++i) {
+    const std::pair<std::string, std::string>& header = response.headers[i];
+    response_to_pass.addHeaderField(WebString::fromLatin1(header.first),
+                                    WebString::fromLatin1(header.second));
+  }
+  response_to_pass.setHeadersText(WebString::fromLatin1(response.headers_text));
+  client_->didFinishOpeningHandshake(this, response_to_pass);
+}
+
+void WebSocketBridge::DidFail(const std::string& message) {
+  DVLOG(1) << "WebSocketBridge::DidFail(" << message << ")";
+  WebSocketHandleClient* client = client_;
+  Disconnect();
+  if (!client)
+    return;
+
+  WebString message_to_pass = WebString::fromUTF8(message);
+  client->didFail(this, message_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(bool was_clean,
+                               unsigned short code,
+                               const std::string& reason) {
+  DVLOG(1) << "WebSocketBridge::DidClose("
+           << was_clean << ", "
+           << code << ", "
+           << reason << ")";
+  WebSocketHandleClient* client = client_;
+  Disconnect();
+  if (!client)
+    return;
+
+  WebString reason_to_pass = WebString::fromUTF8(reason);
+  client->didClose(this, was_clean, code, reason_to_pass);
+  // |this| can be deleted here.
+}
+
+void WebSocketBridge::DidStartClosingHandshake() {
+  DVLOG(1) << "WebSocketBridge::DidStartClosingHandshake()";
+  if (!client_)
+    return;
+
+  client_->didStartClosingHandshake(this);
+  // |this| can be deleted here.
+}
+
+void WebSocketBridge::connect(const WebURL& url,
+                              const WebVector<WebString>& protocols,
+                              const WebSecurityOrigin& origin,
+                              const WebURL& first_party_for_cookies,
+                              const WebString& user_agent_override,
+                              WebSocketHandleClient* client) {
+  DCHECK_EQ(kInvalidChannelId, channel_id_);
+  WebSocketDispatcher* dispatcher =
+      ChildThreadImpl::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());
+
+  DVLOG(1) << "Bridge#" << channel_id_ << " Connect(" << url << ", ("
+           << base::JoinString(protocols_to_pass, ", ") << "), "
+           << origin.toString().utf8() << ")";
+
+  WebSocketHostMsg_AddChannelRequest_Params params;
+  params.socket_url = url;
+  params.requested_protocols = protocols_to_pass;
+  params.origin = origin;
+  params.first_party_for_cookies = first_party_for_cookies;
+  params.user_agent_override = user_agent_override.latin1();
+  params.render_frame_id = render_frame_id_;
+
+  // Headers (ie: User-Agent) are ISO Latin 1.
+  ChildThreadImpl::current()->Send(new WebSocketHostMsg_AddChannelRequest(
+      channel_id_, params));
+}
+
+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 << "))";
+
+  ChildThreadImpl::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 << ")";
+
+  ChildThreadImpl::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 << ")";
+  // This method is for closing handshake and hence |was_clean| shall be true.
+  ChildThreadImpl::current()->Send(
+      new WebSocketMsg_DropChannel(channel_id_, true, code, reason_to_pass));
+}
+
+void WebSocketBridge::Disconnect() {
+  if (channel_id_ == kInvalidChannelId)
+    return;
+  WebSocketDispatcher* dispatcher =
+      ChildThreadImpl::current()->websocket_dispatcher();
+  dispatcher->RemoveBridge(channel_id_);
+
+  channel_id_ = kInvalidChannelId;
+  client_ = NULL;
+}
+
+}  // namespace content