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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_NETWORK_LAYER_H_
#define NET_HTTP_HTTP_NETWORK_LAYER_H_
#pragma once
#include <string>
#include "base/non_thread_safe.h"
#include "base/ref_counted.h"
#include "base/scoped_ptr.h"
#include "net/http/http_transaction_factory.h"
namespace net {
class ClientSocketFactory;
class HostResolver;
class HttpAuthHandlerFactory;
class HttpNetworkDelegate;
class HttpNetworkSession;
class NetLog;
class ProxyInfo;
class ProxyService;
class SpdySessionPool;
class SSLConfigService;
class HttpNetworkLayer : public HttpTransactionFactory, public NonThreadSafe {
public:
// |socket_factory|, |proxy_service| and |host_resolver| must remain valid for
// the lifetime of HttpNetworkLayer.
HttpNetworkLayer(ClientSocketFactory* socket_factory,
HostResolver* host_resolver,
ProxyService* proxy_service,
SSLConfigService* ssl_config_service,
HttpAuthHandlerFactory* http_auth_handler_factory,
HttpNetworkDelegate* network_delegate,
NetLog* net_log);
// Construct a HttpNetworkLayer with an existing HttpNetworkSession which
// contains a valid ProxyService.
explicit HttpNetworkLayer(HttpNetworkSession* session);
~HttpNetworkLayer();
// This function hides the details of how a network layer gets instantiated
// and allows other implementations to be substituted.
static HttpTransactionFactory* CreateFactory(
HostResolver* host_resolver,
ProxyService* proxy_service,
SSLConfigService* ssl_config_service,
HttpAuthHandlerFactory* http_auth_handler_factory,
HttpNetworkDelegate* network_delegate,
NetLog* net_log);
// Create a transaction factory that instantiate a network layer over an
// existing network session. Network session contains some valuable
// information (e.g. authentication data) that we want to share across
// multiple network layers. This method exposes the implementation details
// of a network layer, use this method with an existing network layer only
// when network session is shared.
static HttpTransactionFactory* CreateFactory(HttpNetworkSession* session);
// HttpTransactionFactory methods:
virtual int CreateTransaction(scoped_ptr<HttpTransaction>* trans);
virtual HttpCache* GetCache();
virtual HttpNetworkSession* GetSession();
virtual void Suspend(bool suspend);
// Enable the spdy protocol.
// Without calling this function, SPDY is disabled. The mode can be:
// "" : (default) SSL and compression are enabled, flow
// control disabled.
// "no-ssl" : disables SSL.
// "no-compress" : disables compression.
// "flow-control": enables flow control.
// "none" : disables both SSL and compression.
static void EnableSpdy(const std::string& mode);
private:
// The factory we will use to create network sockets.
ClientSocketFactory* socket_factory_;
// The host resolver and proxy service that will be used when lazily
// creating |session_|.
scoped_refptr<HostResolver> host_resolver_;
scoped_refptr<ProxyService> proxy_service_;
// The SSL config service being used for the session.
scoped_refptr<SSLConfigService> ssl_config_service_;
scoped_refptr<HttpNetworkSession> session_;
scoped_refptr<SpdySessionPool> spdy_session_pool_;
HttpAuthHandlerFactory* http_auth_handler_factory_;
HttpNetworkDelegate* network_delegate_;
NetLog* net_log_;
bool suspended_;
};
} // namespace net
#endif // NET_HTTP_HTTP_NETWORK_LAYER_H_
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