1 // Copyright (c) 2012 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 // This file contains URLFetcher, a wrapper around URLRequest that handles 6 // low-level details like thread safety, ref counting, and incremental buffer 7 // reading. This is useful for callers who simply want to get the data from a 8 // URL and don't care about all the nitty-gritty details. 9 // 10 // NOTE(willchan): Only one "IO" thread is supported for URLFetcher. This is a 11 // temporary situation. We will work on allowing support for multiple "io" 12 // threads per process. 13 14 #ifndef NET_URL_REQUEST_URL_FETCHER_IMPL_H_ 15 #define NET_URL_REQUEST_URL_FETCHER_IMPL_H_ 16 17 #include "base/basictypes.h" 18 #include "base/compiler_specific.h" 19 #include "net/base/net_export.h" 20 #include "net/url_request/url_fetcher.h" 21 22 namespace net { 23 class URLFetcherCore; 24 class URLFetcherDelegate; 25 class URLFetcherFactory; 26 27 class NET_EXPORT_PRIVATE URLFetcherImpl : public URLFetcher { 28 public: 29 // |url| is the URL to send the request to. 30 // |request_type| is the type of request to make. 31 // |d| the object that will receive the callback on fetch completion. 32 URLFetcherImpl(const GURL& url, 33 RequestType request_type, 34 URLFetcherDelegate* d); 35 virtual ~URLFetcherImpl(); 36 37 // URLFetcher implementation: 38 virtual void SetUploadData(const std::string& upload_content_type, 39 const std::string& upload_content) OVERRIDE; 40 virtual void SetUploadFilePath( 41 const std::string& upload_content_type, 42 const base::FilePath& file_path, 43 uint64 range_offset, 44 uint64 range_length, 45 scoped_refptr<base::TaskRunner> file_task_runner) OVERRIDE; 46 virtual void SetChunkedUpload( 47 const std::string& upload_content_type) OVERRIDE; 48 virtual void AppendChunkToUpload(const std::string& data, 49 bool is_last_chunk) OVERRIDE; 50 virtual void SetLoadFlags(int load_flags) OVERRIDE; 51 virtual int GetLoadFlags() const OVERRIDE; 52 virtual void SetReferrer(const std::string& referrer) OVERRIDE; 53 virtual void SetExtraRequestHeaders( 54 const std::string& extra_request_headers) OVERRIDE; 55 virtual void AddExtraRequestHeader(const std::string& header_line) OVERRIDE; 56 virtual void GetExtraRequestHeaders( 57 HttpRequestHeaders* headers) const OVERRIDE; 58 virtual void SetRequestContext( 59 URLRequestContextGetter* request_context_getter) OVERRIDE; 60 virtual void SetFirstPartyForCookies( 61 const GURL& first_party_for_cookies) OVERRIDE; 62 virtual void SetURLRequestUserData( 63 const void* key, 64 const CreateDataCallback& create_data_callback) OVERRIDE; 65 virtual void SetStopOnRedirect(bool stop_on_redirect) OVERRIDE; 66 virtual void SetAutomaticallyRetryOn5xx(bool retry) OVERRIDE; 67 virtual void SetMaxRetriesOn5xx(int max_retries) OVERRIDE; 68 virtual int GetMaxRetriesOn5xx() const OVERRIDE; 69 virtual base::TimeDelta GetBackoffDelay() const OVERRIDE; 70 virtual void SetAutomaticallyRetryOnNetworkChanges(int max_retries) OVERRIDE; 71 virtual void SaveResponseToFileAtPath( 72 const base::FilePath& file_path, 73 scoped_refptr<base::TaskRunner> file_task_runner) OVERRIDE; 74 virtual void SaveResponseToTemporaryFile( 75 scoped_refptr<base::TaskRunner> file_task_runner) OVERRIDE; 76 virtual HttpResponseHeaders* GetResponseHeaders() const OVERRIDE; 77 virtual HostPortPair GetSocketAddress() const OVERRIDE; 78 virtual bool WasFetchedViaProxy() const OVERRIDE; 79 virtual void Start() OVERRIDE; 80 virtual const GURL& GetOriginalURL() const OVERRIDE; 81 virtual const GURL& GetURL() const OVERRIDE; 82 virtual const URLRequestStatus& GetStatus() const OVERRIDE; 83 virtual int GetResponseCode() const OVERRIDE; 84 virtual const ResponseCookies& GetCookies() const OVERRIDE; 85 virtual bool FileErrorOccurred(int* out_error_code) const OVERRIDE; 86 virtual void ReceivedContentWasMalformed() OVERRIDE; 87 virtual bool GetResponseAsString( 88 std::string* out_response_string) const OVERRIDE; 89 virtual bool GetResponseAsFilePath( 90 bool take_ownership, 91 base::FilePath* out_response_path) const OVERRIDE; 92 93 static void CancelAll(); 94 95 static void SetEnableInterceptionForTests(bool enabled); 96 static void SetIgnoreCertificateRequests(bool ignored); 97 98 // TODO(akalin): Make these private again once URLFetcher::Create() 99 // is in net/. 100 101 static URLFetcherFactory* factory(); 102 103 // Sets the factory used by the static method Create to create a URLFetcher. 104 // URLFetcher does not take ownership of |factory|. A value of NULL results 105 // in a URLFetcher being created directly. 106 // 107 // NOTE: for safety, this should only be used through ScopedURLFetcherFactory! 108 static void set_factory(URLFetcherFactory* factory); 109 110 protected: 111 // Returns the delegate. 112 URLFetcherDelegate* delegate() const; 113 114 private: 115 friend class URLFetcherTest; 116 117 // Only used by URLFetcherTest, returns the number of URLFetcher::Core objects 118 // actively running. 119 static int GetNumFetcherCores(); 120 121 const scoped_refptr<URLFetcherCore> core_; 122 123 DISALLOW_COPY_AND_ASSIGN(URLFetcherImpl); 124 }; 125 126 } // namespace net 127 128 #endif // NET_URL_REQUEST_URL_FETCHER_IMPL_H_ 129
