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// Copyright (c) 2010 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 NET_HTTP_HTTP_PROXY_CLIENT_SOCKET_POOL_H_
#define NET_HTTP_HTTP_PROXY_CLIENT_SOCKET_POOL_H_
#include <string>
#include "base/basictypes.h"
#include "base/ref_counted.h"
#include "base/scoped_ptr.h"
#include "base/time.h"
#include "net/base/host_port_pair.h"
#include "net/base/host_resolver.h"
#include "net/http/http_auth.h"
#include "net/proxy/proxy_server.h"
#include "net/socket/client_socket_pool_base.h"
#include "net/socket/client_socket_pool_histograms.h"
#include "net/socket/client_socket_pool.h"
#include "net/socket/tcp_client_socket_pool.h"
namespace net {
class ClientSocketFactory;
class ConnectJobFactory;
class HttpAuthController;
class HttpProxySocketParams : public base::RefCounted<HttpProxySocketParams> {
public:
HttpProxySocketParams(const scoped_refptr<TCPSocketParams>& proxy_server,
const GURL& request_url, HostPortPair endpoint,
scoped_refptr<HttpAuthController> auth_controller,
bool tunnel);
const scoped_refptr<TCPSocketParams>& tcp_params() const {
return tcp_params_;
}
const GURL& request_url() const { return request_url_; }
const HostPortPair& endpoint() const { return endpoint_; }
const scoped_refptr<HttpAuthController>& auth_controller() {
return auth_controller_;
}
bool tunnel() const { return tunnel_; }
private:
friend class base::RefCounted<HttpProxySocketParams>;
~HttpProxySocketParams();
const scoped_refptr<TCPSocketParams> tcp_params_;
const GURL request_url_;
const HostPortPair endpoint_;
const scoped_refptr<HttpAuthController> auth_controller_;
const bool tunnel_;
DISALLOW_COPY_AND_ASSIGN(HttpProxySocketParams);
};
// HttpProxyConnectJob optionally establishes a tunnel through the proxy
// server after connecting the underlying transport socket.
class HttpProxyConnectJob : public ConnectJob {
public:
HttpProxyConnectJob(const std::string& group_name,
const scoped_refptr<HttpProxySocketParams>& params,
const base::TimeDelta& timeout_duration,
const scoped_refptr<TCPClientSocketPool>& tcp_pool,
const scoped_refptr<HostResolver> &host_resolver,
Delegate* delegate,
NetLog* net_log);
virtual ~HttpProxyConnectJob();
// ConnectJob methods.
virtual LoadState GetLoadState() const;
private:
enum State {
kStateTCPConnect,
kStateTCPConnectComplete,
kStateHttpProxyConnect,
kStateHttpProxyConnectComplete,
kStateNone,
};
// Begins the tcp connection and the optional Http proxy tunnel. If the
// request is not immediately servicable (likely), the request will return
// ERR_IO_PENDING. An OK return from this function or the callback means
// that the connection is established; ERR_PROXY_AUTH_REQUESTED means
// that the tunnel needs authentication credentials, the socket will be
// returned in this case, and must be release back to the pool; or
// a standard net error code will be returned.
virtual int ConnectInternal();
void OnIOComplete(int result);
// Runs the state transition loop.
int DoLoop(int result);
int DoTCPConnect();
int DoTCPConnectComplete(int result);
int DoHttpProxyConnect();
int DoHttpProxyConnectComplete(int result);
scoped_refptr<HttpProxySocketParams> params_;
const scoped_refptr<TCPClientSocketPool> tcp_pool_;
const scoped_refptr<HostResolver> resolver_;
State next_state_;
CompletionCallbackImpl<HttpProxyConnectJob> callback_;
scoped_ptr<ClientSocketHandle> tcp_socket_handle_;
scoped_ptr<ClientSocket> socket_;
DISALLOW_COPY_AND_ASSIGN(HttpProxyConnectJob);
};
class HttpProxyClientSocketPool : public ClientSocketPool {
public:
HttpProxyClientSocketPool(
int max_sockets,
int max_sockets_per_group,
const scoped_refptr<ClientSocketPoolHistograms>& histograms,
const scoped_refptr<HostResolver>& host_resolver,
const scoped_refptr<TCPClientSocketPool>& tcp_pool,
NetLog* net_log);
// ClientSocketPool methods:
virtual int RequestSocket(const std::string& group_name,
const void* connect_params,
RequestPriority priority,
ClientSocketHandle* handle,
CompletionCallback* callback,
const BoundNetLog& net_log);
virtual void CancelRequest(const std::string& group_name,
ClientSocketHandle* handle);
virtual void ReleaseSocket(const std::string& group_name,
ClientSocket* socket,
int id);
virtual void Flush();
virtual void CloseIdleSockets();
virtual int IdleSocketCount() const {
return base_.idle_socket_count();
}
virtual int IdleSocketCountInGroup(const std::string& group_name) const;
virtual LoadState GetLoadState(const std::string& group_name,
const ClientSocketHandle* handle) const;
virtual base::TimeDelta ConnectionTimeout() const {
return base_.ConnectionTimeout();
}
virtual scoped_refptr<ClientSocketPoolHistograms> histograms() const {
return base_.histograms();
};
protected:
virtual ~HttpProxyClientSocketPool();
private:
typedef ClientSocketPoolBase<HttpProxySocketParams> PoolBase;
class HttpProxyConnectJobFactory : public PoolBase::ConnectJobFactory {
public:
HttpProxyConnectJobFactory(
const scoped_refptr<TCPClientSocketPool>& tcp_pool,
HostResolver* host_resolver,
NetLog* net_log)
: tcp_pool_(tcp_pool),
host_resolver_(host_resolver),
net_log_(net_log) {}
virtual ~HttpProxyConnectJobFactory() {}
// ClientSocketPoolBase::ConnectJobFactory methods.
virtual ConnectJob* NewConnectJob(const std::string& group_name,
const PoolBase::Request& request,
ConnectJob::Delegate* delegate) const;
virtual base::TimeDelta ConnectionTimeout() const;
private:
const scoped_refptr<TCPClientSocketPool> tcp_pool_;
const scoped_refptr<HostResolver> host_resolver_;
NetLog* net_log_;
DISALLOW_COPY_AND_ASSIGN(HttpProxyConnectJobFactory);
};
PoolBase base_;
DISALLOW_COPY_AND_ASSIGN(HttpProxyClientSocketPool);
};
REGISTER_SOCKET_PARAMS_FOR_POOL(HttpProxyClientSocketPool,
HttpProxySocketParams);
} // namespace net
#endif // NET_HTTP_HTTP_PROXY_CLIENT_SOCKET_POOL_H_
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