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