Page Speed Optimization Libraries
1.8.31.2
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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 00018 00019 #ifndef NET_INSTAWEB_REWRITER_PUBLIC_DOMAIN_REWRITE_FILTER_H_ 00020 #define NET_INSTAWEB_REWRITER_PUBLIC_DOMAIN_REWRITE_FILTER_H_ 00021 00022 #include "net/instaweb/rewriter/public/common_filter.h" 00023 #include "net/instaweb/util/public/basictypes.h" 00024 #include "net/instaweb/util/public/string.h" 00025 #include "net/instaweb/util/public/string_util.h" 00026 00027 namespace net_instaweb { 00028 00029 class HtmlElement; 00030 class GoogleUrl; 00031 class ResponseHeaders; 00032 class RewriteDriver; 00033 class Statistics; 00034 class Variable; 00035 00040 class DomainRewriteFilter : public CommonFilter { 00041 public: 00042 DomainRewriteFilter(RewriteDriver* rewrite_driver, Statistics* stats); 00043 ~DomainRewriteFilter(); 00044 static void InitStats(Statistics* statistics); 00045 virtual void StartDocumentImpl(); 00046 virtual void EndDocument(); 00047 virtual void StartElementImpl(HtmlElement* element); 00048 virtual void EndElementImpl(HtmlElement* element) {} 00049 00050 virtual const char* Name() const { return "DomainRewrite"; } 00051 00052 enum RewriteResult { 00053 kRewroteDomain, 00054 kDomainUnchanged, 00055 kFail, 00056 }; 00057 00063 RewriteResult Rewrite(const StringPiece& input_url, 00064 const GoogleUrl& base_url, 00065 const RewriteDriver* driver, 00066 bool apply_sharding, 00067 GoogleString* output_url) const; 00068 00071 void UpdateLocationHeader(const GoogleUrl& base_url, RewriteDriver* driver, 00072 ResponseHeaders* headers) const; 00073 00074 private: 00076 Variable* rewrite_count_; 00077 00078 DISALLOW_COPY_AND_ASSIGN(DomainRewriteFilter); 00079 }; 00080 00081 } 00082 00083 #endif ///< NET_INSTAWEB_REWRITER_PUBLIC_DOMAIN_REWRITE_FILTER_H_