Page Speed Optimization Libraries  1.8.31.3
net/instaweb/automatic/public/proxy_interface.h
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00001 /*
00002  * Copyright 2011 Google Inc.
00003  *
00004  * Licensed under the Apache License, Version 2.0 (the "License");
00005  * you may not use this file except in compliance with the License.
00006  * You may obtain a copy of the License at
00007  *
00008  *      http:///www.apache.org/licenses/LICENSE-2.0
00009  *
00010  * Unless required by applicable law or agreed to in writing, software
00011  * distributed under the License is distributed on an "AS IS" BASIS,
00012  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00013  * See the License for the specific language governing permissions and
00014  * limitations under the License.
00015  */
00016 
00026 
00027 #ifndef NET_INSTAWEB_AUTOMATIC_PUBLIC_PROXY_INTERFACE_H_
00028 #define NET_INSTAWEB_AUTOMATIC_PUBLIC_PROXY_INTERFACE_H_
00029 
00030 #include "net/instaweb/http/public/url_async_fetcher.h"
00031 #include "net/instaweb/util/public/basictypes.h"
00032 #include "net/instaweb/util/public/scoped_ptr.h"
00033 #include "net/instaweb/util/public/string.h"
00034 #include "net/instaweb/util/public/string_util.h"
00035 
00036 namespace net_instaweb {
00037 
00038 class AsyncFetch;
00039 class GoogleUrl;
00040 class MessageHandler;
00041 class ProxyFetchPropertyCallbackCollector;
00042 class ProxyFetchFactory;
00043 class ServerContext;
00044 class RewriteOptions;
00045 class Statistics;
00046 class TimedVariable;
00047 
00049 class ProxyInterface : public UrlAsyncFetcher {
00050  public:
00051   ProxyInterface(const StringPiece& hostname, int port,
00052                  ServerContext* server_context, Statistics* stats);
00053   virtual ~ProxyInterface();
00054 
00056   static void InitStats(Statistics* statistics);
00057 
00061   virtual void Fetch(const GoogleString& requested_url,
00062                      MessageHandler* handler,
00063                      AsyncFetch* async_fetch);
00064 
00066   bool IsWellFormedUrl(const GoogleUrl& url);
00067 
00068   static const char kCacheHtmlRequestCount[];
00069 
00071   virtual ProxyFetchPropertyCallbackCollector* InitiatePropertyCacheLookup(
00072       bool is_resource_fetch,
00073       const GoogleUrl& request_url,
00074       RewriteOptions* options,
00075       AsyncFetch* async_fetch,
00076       const bool requires_blink_cohort,
00077       bool* added_page_property_callback);
00078 
00079  protected:
00081   ServerContext* server_context_; 
00082 
00083  private:
00084   friend class ProxyInterfaceTest;
00085 
00089   void ProxyRequest(bool is_resource_fetch,
00090                     const GoogleUrl& requested_url,
00091                     AsyncFetch* async_fetch,
00092                     MessageHandler* handler);
00093 
00096   struct RequestData;
00097   void GetRewriteOptionsDone(RequestData* request_data,
00098                              RewriteOptions* query_options);
00099 
00102   bool UrlAndPortMatchThisServer(const GoogleUrl& url);
00103 
00107   const GoogleString hostname_;
00108   const int port_;
00109 
00112   TimedVariable* all_requests_;
00114   TimedVariable* pagespeed_requests_;
00116   TimedVariable* cache_html_flow_requests_;
00118   TimedVariable* rejected_requests_;
00119 
00120   scoped_ptr<ProxyFetchFactory> proxy_fetch_factory_;
00121 
00122   DISALLOW_COPY_AND_ASSIGN(ProxyInterface);
00123 };
00124 
00125 }  
00126 
00127 #endif  ///< NET_INSTAWEB_AUTOMATIC_PUBLIC_PROXY_INTERFACE_H_
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