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// 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.
#ifndef CONTENT_BROWSER_RENDERER_HOST_WEBSOCKET_HOST_H_
#define CONTENT_BROWSER_RENDERER_HOST_WEBSOCKET_HOST_H_
#include <string>
#include <vector>
#include "base/memory/scoped_ptr.h"
#include "base/memory/weak_ptr.h"
#include "base/time/time.h"
#include "content/common/content_export.h"
#include "content/common/websocket.h"
class GURL;
namespace url {
class Origin;
} // namespace url
namespace net {
class WebSocketChannel;
class URLRequestContext;
} // namespace net
namespace IPC {
class Message;
} // namespace IPC
namespace content {
class WebSocketDispatcherHost;
// Host of net::WebSocketChannel. The lifetime of an instance of this class is
// completely controlled by the WebSocketDispatcherHost object.
class CONTENT_EXPORT WebSocketHost {
public:
WebSocketHost(int routing_id,
WebSocketDispatcherHost* dispatcher,
net::URLRequestContext* url_request_context,
base::TimeDelta delay);
virtual ~WebSocketHost();
// The renderer process is going away.
// This function is virtual for testing.
virtual void GoAway();
// General message dispatch. WebSocketDispatcherHost::OnMessageReceived
// delegates to this method after looking up the |routing_id|.
virtual bool OnMessageReceived(const IPC::Message& message);
int routing_id() const { return routing_id_; }
bool handshake_succeeded() const { return handshake_succeeded_; }
void OnHandshakeSucceeded() { handshake_succeeded_ = true; }
private:
// Handlers for each message type, dispatched by OnMessageReceived(), as
// defined in content/common/websocket_messages.h
void OnAddChannelRequest(const GURL& socket_url,
const std::vector<std::string>& requested_protocols,
const url::Origin& origin,
int render_frame_id);
void AddChannel(const GURL& socket_url,
const std::vector<std::string>& requested_protocols,
const url::Origin& origin,
int render_frame_id);
void OnSendFrame(bool fin,
WebSocketMessageType type,
const std::vector<char>& data);
void OnFlowControl(int64 quota);
void OnDropChannel(bool was_clean, uint16 code, const std::string& reason);
// The channel we use to send events to the network.
scoped_ptr<net::WebSocketChannel> channel_;
// The WebSocketHostDispatcher that created this object.
WebSocketDispatcherHost* const dispatcher_;
// The URL request context for the channel.
net::URLRequestContext* const url_request_context_;
// The ID used to route messages.
const int routing_id_;
// Delay used for per-renderer WebSocket throttling.
base::TimeDelta delay_;
// SendFlowControl() is delayed when OnFlowControl() is called before
// AddChannel() is called.
// Zero indicates there is no pending SendFlowControl().
int64_t pending_flow_control_quota_;
// handshake_succeeded_ is set and used by WebSocketDispatcherHost
// to manage counters for per-renderer WebSocket throttling.
bool handshake_succeeded_;
base::WeakPtrFactory<WebSocketHost> weak_ptr_factory_;
DISALLOW_COPY_AND_ASSIGN(WebSocketHost);
};
} // namespace content
#endif // CONTENT_BROWSER_RENDERER_HOST_WEBSOCKET_HOST_H_
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