Page Speed Optimization Libraries
1.8.31.3
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00001 /* 00002 * Copyright 2013 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 00018 00019 #ifndef NET_INSTAWEB_REWRITER_PUBLIC_DOWNSTREAM_CACHE_PURGER_H_ 00020 #define NET_INSTAWEB_REWRITER_PUBLIC_DOWNSTREAM_CACHE_PURGER_H_ 00021 00022 #include "net/instaweb/util/public/string.h" 00023 #include "pagespeed/kernel/base/basictypes.h" 00024 00025 namespace net_instaweb { 00026 class GoogleUrl; 00027 class RewriteDriver; 00028 00031 class DownstreamCachePurger { 00032 public: 00033 explicit DownstreamCachePurger(RewriteDriver* driver); 00034 ~DownstreamCachePurger(); 00035 00039 bool MaybeIssuePurge(const GoogleUrl& google_url); 00040 00041 void Clear(); 00042 00043 private: 00048 bool ShouldPurgeRewrittenResponse(const GoogleUrl& google_url); 00049 00052 bool GeneratePurgeRequestParameters(const GoogleUrl& page_url); 00053 00055 void PurgeDownstreamCache(); 00056 00057 RewriteDriver* driver_; 00058 GoogleString purge_url_; 00059 GoogleString purge_method_; 00060 00064 bool made_downstream_purge_attempt_; 00065 00066 DISALLOW_COPY_AND_ASSIGN(DownstreamCachePurger); 00067 }; 00068 00069 } 00070 00071 #endif ///< NET_INSTAWEB_REWRITER_PUBLIC_DOWNSTREAM_CACHE_PURGER_H_