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// Copyright (c) 2012 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/socket_stream_dispatcher.h"
#include <vector>
#include "base/bind.h"
#include "base/id_map.h"
#include "base/lazy_instance.h"
#include "base/memory/ref_counted.h"
#include "base/message_loop/message_loop.h"
#include "base/strings/string16.h"
#include "base/strings/utf_string_conversions.h"
#include "content/child/child_thread.h"
#include "content/child/web_socket_stream_handle_bridge.h"
#include "content/child/web_socket_stream_handle_delegate.h"
#include "content/child/web_socket_stream_handle_impl.h"
#include "content/common/socket_stream.h"
#include "content/common/socket_stream_handle_data.h"
#include "content/common/socket_stream_messages.h"
#include "net/base/net_errors.h"
#include "url/gurl.h"
namespace content {
// IPCWebSocketStreamHandleBridge is owned by each SocketStreamHandle.
// It communicates with the main browser process via SocketStreamDispatcher.
class IPCWebSocketStreamHandleBridge : public WebSocketStreamHandleBridge {
public:
IPCWebSocketStreamHandleBridge(blink::WebSocketStreamHandle* handle,
WebSocketStreamHandleDelegate* delegate)
: socket_id_(kNoSocketId), handle_(handle), delegate_(delegate) {}
// Returns the handle having given id or NULL if there is no such handle.
static IPCWebSocketStreamHandleBridge* FromSocketId(int id);
// WebSocketStreamHandleBridge methods.
virtual void Connect(const GURL& url) OVERRIDE;
virtual bool Send(const std::vector<char>& data) OVERRIDE;
virtual void Close() OVERRIDE;
// Called by SocketStreamDispatcher.
void OnConnected(int max_amount_send_allowed);
void OnSentData(int amount_sent);
void OnReceivedData(const std::vector<char>& data);
void OnClosed();
void OnFailed(int error_code, const char* error_msg);
private:
virtual ~IPCWebSocketStreamHandleBridge();
// The ID for this bridge and corresponding SocketStream instance in the
// browser process.
int socket_id_;
blink::WebSocketStreamHandle* handle_;
WebSocketStreamHandleDelegate* delegate_;
// Map from ID to bridge instance.
static base::LazyInstance<IDMap<IPCWebSocketStreamHandleBridge> >::Leaky
all_bridges;
};
// static
base::LazyInstance<IDMap<IPCWebSocketStreamHandleBridge> >::Leaky
IPCWebSocketStreamHandleBridge::all_bridges = LAZY_INSTANCE_INITIALIZER;
/* static */
IPCWebSocketStreamHandleBridge* IPCWebSocketStreamHandleBridge::FromSocketId(
int id) {
return all_bridges.Get().Lookup(id);
}
IPCWebSocketStreamHandleBridge::~IPCWebSocketStreamHandleBridge() {
DVLOG(1) << "Bridge (" << this << ", socket_id_=" << socket_id_
<< ") Destructor";
if (socket_id_ == kNoSocketId)
return;
ChildThread::current()->Send(new SocketStreamHostMsg_Close(socket_id_));
socket_id_ = kNoSocketId;
}
void IPCWebSocketStreamHandleBridge::Connect(const GURL& url) {
DVLOG(1) << "Bridge (" << this << ") Connect (url=" << url << ")";
DCHECK_EQ(socket_id_, kNoSocketId);
if (delegate_)
delegate_->WillOpenStream(handle_, url);
socket_id_ = all_bridges.Get().Add(this);
DCHECK_NE(socket_id_, kNoSocketId);
int render_frame_id = MSG_ROUTING_NONE;
WebSocketStreamHandleImpl* impl =
static_cast<WebSocketStreamHandleImpl*>(handle_);
const SocketStreamHandleData* data =
static_cast<SocketStreamHandleData*>(impl->GetUserData(handle_));
if (data)
render_frame_id = data->render_frame_id();
AddRef(); // Released in OnClosed().
ChildThread::current()->Send(
new SocketStreamHostMsg_Connect(render_frame_id, url, socket_id_));
DVLOG(1) << "Bridge #" << socket_id_ << " sent IPC Connect";
// TODO(ukai): timeout to OnConnected.
}
bool IPCWebSocketStreamHandleBridge::Send(const std::vector<char>& data) {
DVLOG(1) << "Bridge #" << socket_id_ << " Send (" << data.size()
<< " bytes)";
ChildThread::current()->Send(
new SocketStreamHostMsg_SendData(socket_id_, data));
if (delegate_)
delegate_->WillSendData(handle_, &data[0], data.size());
return true;
}
void IPCWebSocketStreamHandleBridge::Close() {
DVLOG(1) << "Bridge #" << socket_id_ << " Close";
ChildThread::current()->Send(new SocketStreamHostMsg_Close(socket_id_));
}
void IPCWebSocketStreamHandleBridge::OnConnected(int max_pending_send_allowed) {
DVLOG(1) << "Bridge #" << socket_id_
<< " OnConnected (max_pending_send_allowed="
<< max_pending_send_allowed << ")";
if (delegate_)
delegate_->DidOpenStream(handle_, max_pending_send_allowed);
}
void IPCWebSocketStreamHandleBridge::OnSentData(int amount_sent) {
DVLOG(1) << "Bridge #" << socket_id_ << " OnSentData (" << amount_sent
<< " bytes)";
if (delegate_)
delegate_->DidSendData(handle_, amount_sent);
}
void IPCWebSocketStreamHandleBridge::OnReceivedData(
const std::vector<char>& data) {
DVLOG(1) << "Bridge #" << socket_id_ << " OnReceiveData (" << data.size()
<< " bytes)";
if (delegate_)
delegate_->DidReceiveData(handle_, &data[0], data.size());
}
void IPCWebSocketStreamHandleBridge::OnClosed() {
DVLOG(1) << "Bridge #" << socket_id_ << " OnClosed";
if (socket_id_ != kNoSocketId) {
all_bridges.Get().Remove(socket_id_);
socket_id_ = kNoSocketId;
}
if (delegate_)
delegate_->DidClose(handle_);
delegate_ = NULL;
Release();
}
void IPCWebSocketStreamHandleBridge::OnFailed(int error_code,
const char* error_msg) {
DVLOG(1) << "Bridge #" << socket_id_ << " OnFailed (error_code=" << error_code
<< ")";
if (delegate_)
delegate_->DidFail(handle_, error_code, base::ASCIIToUTF16(error_msg));
}
SocketStreamDispatcher::SocketStreamDispatcher() {
}
// static
WebSocketStreamHandleBridge* SocketStreamDispatcher::CreateBridge(
blink::WebSocketStreamHandle* handle,
WebSocketStreamHandleDelegate* delegate) {
return new IPCWebSocketStreamHandleBridge(handle, delegate);
}
bool SocketStreamDispatcher::OnMessageReceived(const IPC::Message& msg) {
bool handled = true;
IPC_BEGIN_MESSAGE_MAP(SocketStreamDispatcher, msg)
IPC_MESSAGE_HANDLER(SocketStreamMsg_Connected, OnConnected)
IPC_MESSAGE_HANDLER(SocketStreamMsg_SentData, OnSentData)
IPC_MESSAGE_HANDLER(SocketStreamMsg_ReceivedData, OnReceivedData)
IPC_MESSAGE_HANDLER(SocketStreamMsg_Closed, OnClosed)
IPC_MESSAGE_HANDLER(SocketStreamMsg_Failed, OnFailed)
IPC_MESSAGE_UNHANDLED(handled = false)
IPC_END_MESSAGE_MAP()
return handled;
}
void SocketStreamDispatcher::OnConnected(int socket_id,
int max_pending_send_allowed) {
DVLOG(1) << "SocketStreamDispatcher::OnConnected (max_pending_send_allowed="
<< max_pending_send_allowed << ") to socket_id=" << socket_id;
IPCWebSocketStreamHandleBridge* bridge =
IPCWebSocketStreamHandleBridge::FromSocketId(socket_id);
if (bridge)
bridge->OnConnected(max_pending_send_allowed);
else
DLOG(ERROR) << "No bridge for socket_id=" << socket_id;
}
void SocketStreamDispatcher::OnSentData(int socket_id, int amount_sent) {
DVLOG(1) << "SocketStreamDispatcher::OnSentData (" << amount_sent
<< " bytes) to socket_id=" << socket_id;
IPCWebSocketStreamHandleBridge* bridge =
IPCWebSocketStreamHandleBridge::FromSocketId(socket_id);
if (bridge)
bridge->OnSentData(amount_sent);
else
DLOG(ERROR) << "No bridge for socket_id=" << socket_id;
}
void SocketStreamDispatcher::OnReceivedData(
int socket_id, const std::vector<char>& data) {
DVLOG(1) << "SocketStreamDispatcher::OnReceivedData (" << data.size()
<< " bytes) to socket_id=" << socket_id;
IPCWebSocketStreamHandleBridge* bridge =
IPCWebSocketStreamHandleBridge::FromSocketId(socket_id);
if (bridge)
bridge->OnReceivedData(data);
else
DLOG(ERROR) << "No bridge for socket_id=" << socket_id;
}
void SocketStreamDispatcher::OnClosed(int socket_id) {
DVLOG(1) << "SocketStreamDispatcher::OnClosed to socket_id=" << socket_id;
IPCWebSocketStreamHandleBridge* bridge =
IPCWebSocketStreamHandleBridge::FromSocketId(socket_id);
if (bridge)
bridge->OnClosed();
else
DLOG(ERROR) << "No bridge for socket_id=" << socket_id;
}
void SocketStreamDispatcher::OnFailed(int socket_id, int error_code) {
IPCWebSocketStreamHandleBridge* bridge =
IPCWebSocketStreamHandleBridge::FromSocketId(socket_id);
if (bridge)
bridge->OnFailed(error_code, net::ErrorToString(error_code));
else
DLOG(ERROR) << "No bridge for socket_id=" << socket_id;
}
} // namespace content
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