src/net/http/http_stream_factory_impl.h

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef NET_HTTP_HTTP_STREAM_FACTORY_IMPL_H_
   6 #define NET_HTTP_HTTP_STREAM_FACTORY_IMPL_H_
   7
   8 #include <map>
   9 #include <set>
  10 #include <vector>
  11
  12 #include "base/gtest_prod_util.h"
  13 #include "base/memory/ref_counted.h"
  14 #include "net/base/host_port_pair.h"
  15 #include "net/base/net_log.h"
  16 #include "net/http/http_pipelined_host_pool.h"
  17 #include "net/http/http_stream_factory.h"
  18 #include "net/proxy/proxy_server.h"
  19 #include "net/socket/ssl_client_socket.h"
  20 #include "net/spdy/spdy_session_key.h"
  21
  22 namespace net {
  23
  24 class HttpNetworkSession;
  25 class HttpPipelinedHost;
  26 class SpdySession;
  27
  28 class NET_EXPORT_PRIVATE HttpStreamFactoryImpl :
  29     public HttpStreamFactory,
  30     public HttpPipelinedHostPool::Delegate {
  31  public:
  32   // RequestStream may only be called if |for_websockets| is false.
  33   // RequestWebSocketHandshakeStream may only be called if |for_websockets|
  34   // is true.
  35   HttpStreamFactoryImpl(HttpNetworkSession* session, bool for_websockets);
  36   virtual ~HttpStreamFactoryImpl();
  37
  38   // HttpStreamFactory interface
  39   virtual HttpStreamRequest* RequestStream(
  40       const HttpRequestInfo& info,
  41       RequestPriority priority,
  42       const SSLConfig& server_ssl_config,
  43       const SSLConfig& proxy_ssl_config,
  44       HttpStreamRequest::Delegate* delegate,
  45       const BoundNetLog& net_log) OVERRIDE;
  46
  47   virtual HttpStreamRequest* RequestWebSocketHandshakeStream(
  48       const HttpRequestInfo& info,
  49       RequestPriority priority,
  50       const SSLConfig& server_ssl_config,
  51       const SSLConfig& proxy_ssl_config,
  52       HttpStreamRequest::Delegate* delegate,
  53       WebSocketHandshakeStreamBase::CreateHelper* create_helper,
  54       const BoundNetLog& net_log) OVERRIDE;
  55
  56   virtual void PreconnectStreams(int num_streams,
  57                                  const HttpRequestInfo& info,
  58                                  RequestPriority priority,
  59                                  const SSLConfig& server_ssl_config,
  60                                  const SSLConfig& proxy_ssl_config) OVERRIDE;
  61   virtual base::Value* PipelineInfoToValue() const OVERRIDE;
  62   virtual const HostMappingRules* GetHostMappingRules() const OVERRIDE;
  63
  64   // HttpPipelinedHostPool::Delegate interface
  65   virtual void OnHttpPipelinedHostHasAdditionalCapacity(
  66       HttpPipelinedHost* host) OVERRIDE;
  67
  68   size_t num_orphaned_jobs() const { return orphaned_job_set_.size(); }
  69
  70  private:
  71   FRIEND_TEST_ALL_PREFIXES(HttpStreamFactoryImplRequestTest, SetPriority);
  72
  73   class NET_EXPORT_PRIVATE Request;
  74   class NET_EXPORT_PRIVATE Job;
  75
  76   typedef std::set<Request*> RequestSet;
  77   typedef std::vector<Request*> RequestVector;
  78   typedef std::map<SpdySessionKey, RequestSet> SpdySessionRequestMap;
  79   typedef std::map<HttpPipelinedHost::Key,
  80                    RequestVector> HttpPipeliningRequestMap;
  81
  82   HttpStreamRequest* RequestStreamInternal(
  83       const HttpRequestInfo& info,
  84       RequestPriority priority,
  85       const SSLConfig& server_ssl_config,
  86       const SSLConfig& proxy_ssl_config,
  87       HttpStreamRequest::Delegate* delegate,
  88       WebSocketHandshakeStreamBase::CreateHelper* create_helper,
  89       const BoundNetLog& net_log);
  90
  91   PortAlternateProtocolPair GetAlternateProtocolRequestFor(
  92       const GURL& original_url,
  93       GURL* alternate_url) const;
  94
  95   // Detaches |job| from |request|.
  96   void OrphanJob(Job* job, const Request* request);
  97
  98   // Called when a SpdySession is ready. It will find appropriate Requests and
  99   // fulfill them. |direct| indicates whether or not |spdy_session| uses a
 100   // proxy.
 101   void OnNewSpdySessionReady(const base::WeakPtr<SpdySession>& spdy_session,
 102                              bool direct,
 103                              const SSLConfig& used_ssl_config,
 104                              const ProxyInfo& used_proxy_info,
 105                              bool was_npn_negotiated,
 106                              NextProto protocol_negotiated,
 107                              bool using_spdy,
 108                              const BoundNetLog& net_log);
 109
 110   // Called when the Job detects that the endpoint indicated by the
 111   // Alternate-Protocol does not work. Lets the factory update
 112   // HttpAlternateProtocols with the failure and resets the SPDY session key.
 113   void OnBrokenAlternateProtocol(const Job*, const HostPortPair& origin);
 114
 115   // Invoked when an orphaned Job finishes.
 116   void OnOrphanedJobComplete(const Job* job);
 117
 118   // Invoked when the Job finishes preconnecting sockets.
 119   void OnPreconnectsComplete(const Job* job);
 120
 121   // Called when the Preconnect completes. Used for testing.
 122   virtual void OnPreconnectsCompleteInternal() {}
 123
 124   void AbortPipelinedRequestsWithKey(const Job* job,
 125                                      const HttpPipelinedHost::Key& key,
 126                                      int status,
 127                                      const SSLConfig& used_ssl_config);
 128
 129   HttpNetworkSession* const session_;
 130
 131   // All Requests are handed out to clients. By the time HttpStreamFactoryImpl
 132   // is destroyed, all Requests should be deleted (which should remove them from
 133   // |request_map_|. The Requests will delete the corresponding job.
 134   std::map<const Job*, Request*> request_map_;
 135
 136   SpdySessionRequestMap spdy_session_request_map_;
 137   HttpPipeliningRequestMap http_pipelining_request_map_;
 138
 139   HttpPipelinedHostPool http_pipelined_host_pool_;
 140
 141   // These jobs correspond to jobs orphaned by Requests and now owned by
 142   // HttpStreamFactoryImpl. Since they are no longer tied to Requests, they will
 143   // not be canceled when Requests are canceled. Therefore, in
 144   // ~HttpStreamFactoryImpl, it is possible for some jobs to still exist in this
 145   // set. Leftover jobs will be deleted when the factory is destroyed.
 146   std::set<const Job*> orphaned_job_set_;
 147
 148   // These jobs correspond to preconnect requests and have no associated Request
 149   // object. They're owned by HttpStreamFactoryImpl. Leftover jobs will be
 150   // deleted when the factory is destroyed.
 151   std::set<const Job*> preconnect_job_set_;
 152
 153   const bool for_websockets_;
 154   DISALLOW_COPY_AND_ASSIGN(HttpStreamFactoryImpl);
 155 };
 156
 157 }  // namespace net
 158
 159 #endif  // NET_HTTP_HTTP_STREAM_FACTORY_IMPL_H_