Page Speed Optimization Libraries  1.2.24.1
net/instaweb/http/public/http_dump_url_fetcher.h
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00001 /*
00002  * Copyright 2010 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_HTTP_PUBLIC_HTTP_DUMP_URL_FETCHER_H_
00020 #define NET_INSTAWEB_HTTP_PUBLIC_HTTP_DUMP_URL_FETCHER_H_
00021 
00022 #include "net/instaweb/http/public/url_fetcher.h"
00023 #include "net/instaweb/util/public/basictypes.h"
00024 #include "net/instaweb/util/public/file_system.h"
00025 #include "net/instaweb/util/public/scoped_ptr.h"
00026 #include "net/instaweb/util/public/string.h"
00027 #include "net/instaweb/util/public/string_util.h"
00028 
00029 namespace net_instaweb {
00030 
00031 class GoogleUrl;
00032 class MessageHandler;
00033 class RequestHeaders;
00034 class ResponseHeaders;
00035 class Timer;
00036 class Writer;
00037 
00041 
00045 class HttpDumpUrlFetcher : public UrlFetcher {
00046  public:
00047 
00053   static const char kGzipContentLengthAttribute[];
00054 
00055   HttpDumpUrlFetcher(const StringPiece& root_dir, FileSystem* file_system,
00056                      Timer* timer);
00057   virtual ~HttpDumpUrlFetcher();
00058 
00061   static bool GetFilenameFromUrl(const StringPiece& root_dir,
00062                                  const GoogleUrl& url,
00063                                  GoogleString* filename,
00064                                  MessageHandler* message_handler);
00065 
00067   bool GetFilename(const GoogleUrl& url,
00068                    GoogleString* filename,
00069                    MessageHandler* message_handler) {
00070     return GetFilenameFromUrl(root_dir_, url, filename, message_handler);
00071   }
00072 
00074   virtual bool StreamingFetchUrl(const GoogleString& url,
00075                                  const RequestHeaders& request_headers,
00076                                  ResponseHeaders* response_headers,
00077                                  Writer* fetched_content_writer,
00078                                  MessageHandler* message_handler);
00079 
00082   bool ParseFile(FileSystem::InputFile* file,
00083                  ResponseHeaders* response_headers,
00084                  Writer* response_writer,
00085                  MessageHandler* handler);
00086 
00088   void RespondError(ResponseHeaders* response_headers, Writer* response_writer,
00089                     MessageHandler* handler);
00090 
00092   void set_print_urls(bool on);
00093 
00094  private:
00095   GoogleString root_dir_; 
00096   FileSystem* file_system_;
00097   Timer* timer_;
00098 
00100   GoogleString error_body_;
00101 
00102   scoped_ptr<StringSet> urls_;
00103 
00104   DISALLOW_COPY_AND_ASSIGN(HttpDumpUrlFetcher);
00105 };
00106 
00107 }  
00108 
00109 #endif  ///< NET_INSTAWEB_HTTP_PUBLIC_HTTP_DUMP_URL_FETCHER_H_
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