// Copyright (c) 2006-2008 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_ #include "base/ref_counted.h" #include "base/scoped_ptr.h" #include "net/http/http_transaction_factory.h" namespace net { class ClientSocketFactory; class HostResolver; class HttpNetworkSession; class ProxyInfo; class ProxyService; class HttpNetworkLayer : public HttpTransactionFactory { 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); // 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); // 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 HttpTransaction* CreateTransaction(); virtual HttpCache* GetCache(); virtual void Suspend(bool suspend); HttpNetworkSession* GetSession(); private: // The factory we will use to create network sockets. ClientSocketFactory* socket_factory_; // The host resolver and proxy service that will used when lazily // creating |session_|. scoped_refptr host_resolver_; scoped_refptr proxy_service_; scoped_refptr session_; bool suspended_; }; } // namespace net #endif // NET_HTTP_HTTP_NETWORK_LAYER_H_