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1 // Copyright (c) 2011 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 
11 #include "base/memory/ref_counted.h"
12 #include "net/base/host_port_pair.h"
13 #include "net/http/http_stream_factory.h"
14 #include "net/base/net_log.h"
15 #include "net/proxy/proxy_server.h"
16 
17 namespace net {
18 
19 class HttpNetworkSession;
20 class SpdySession;
21 
22 class HttpStreamFactoryImpl : public HttpStreamFactory {
23  public:
24   explicit HttpStreamFactoryImpl(HttpNetworkSession* session);
25   virtual ~HttpStreamFactoryImpl();
26 
27   // HttpStreamFactory Interface
28   virtual HttpStreamRequest* RequestStream(
29       const HttpRequestInfo& info,
30       const SSLConfig& ssl_config,
31       HttpStreamRequest::Delegate* delegate,
32       const BoundNetLog& net_log);
33 
34   virtual void PreconnectStreams(int num_streams,
35                                  const HttpRequestInfo& info,
36                                  const SSLConfig& ssl_config,
37                                  const BoundNetLog& net_log);
38   virtual void AddTLSIntolerantServer(const HostPortPair& server);
39   virtual bool IsTLSIntolerantServer(const HostPortPair& server) const;
40 
41  private:
42   class Request;
43   class Job;
44 
45   typedef std::set<Request*> RequestSet;
46   typedef std::map<HostPortProxyPair, RequestSet> SpdySessionRequestMap;
47 
48   bool GetAlternateProtocolRequestFor(const GURL& original_url,
49                                       GURL* alternate_url) const;
50 
51   // Detaches |job| from |request|.
52   void OrphanJob(Job* job, const Request* request);
53 
54   // Called when a SpdySession is ready. It will find appropriate Requests and
55   // fulfill them. |direct| indicates whether or not |spdy_session| uses a
56   // proxy.
57   void OnSpdySessionReady(scoped_refptr<SpdySession> spdy_session,
58                           bool direct,
59                           const SSLConfig& used_ssl_config,
60                           const ProxyInfo& used_proxy_info,
61                           bool was_npn_negotiated,
62                           bool using_spdy,
63                           const NetLog::Source& source);
64 
65   // Called when the Job detects that the endpoint indicated by the
66   // Alternate-Protocol does not work. Lets the factory update
67   // HttpAlternateProtocols with the failure and resets the SPDY session key.
68   void OnBrokenAlternateProtocol(const Job*, const HostPortPair& origin);
69 
70   // Invoked when an orphaned Job finishes.
71   void OnOrphanedJobComplete(const Job* job);
72 
73   // Invoked when the Job finishes preconnecting sockets.
74   void OnPreconnectsComplete(const Job* job);
75 
76   // Called when the Preconnect completes. Used for testing.
OnPreconnectsCompleteInternal()77   virtual void OnPreconnectsCompleteInternal() {}
78 
79   HttpNetworkSession* const session_;
80 
81   std::set<HostPortPair> tls_intolerant_servers_;
82 
83   // All Requests are handed out to clients. By the time HttpStreamFactoryImpl
84   // is destroyed, all Requests should be deleted (which should remove them from
85   // |request_map_|. The Requests will delete the corresponding job.
86   std::map<const Job*, Request*> request_map_;
87 
88   SpdySessionRequestMap spdy_session_request_map_;
89 
90   // These jobs correspond to jobs orphaned by Requests and now owned by
91   // HttpStreamFactoryImpl. Since they are no longer tied to Requests, they will
92   // not be canceled when Requests are canceled. Therefore, in
93   // ~HttpStreamFactoryImpl, it is possible for some jobs to still exist in this
94   // set. Leftover jobs will be deleted when the factory is destroyed.
95   std::set<const Job*> orphaned_job_set_;
96 
97   // These jobs correspond to preconnect requests and have no associated Request
98   // object. They're owned by HttpStreamFactoryImpl. Leftover jobs will be
99   // deleted when the factory is destroyed.
100   std::set<const Job*> preconnect_job_set_;
101 
102   DISALLOW_COPY_AND_ASSIGN(HttpStreamFactoryImpl);
103 };
104 
105 }  // namespace net
106 
107 #endif  // NET_HTTP_HTTP_STREAM_FACTORY_IMPL_H_
108