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| 1 // Copyright 2015 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 #ifndef CONTENT_BROWSER_LOADER_NULL_RESOURCE_HANDLER_H_ |
| 6 #define CONTENT_BROWSER_LOADER_NULL_RESOURCE_HANDLER_H_ |
| 7 |
| 8 #include "base/basictypes.h" |
| 9 #include "base/macros.h" |
| 10 #include "base/memory/ref_counted.h" |
| 11 #include "base/memory/scoped_ptr.h" |
| 12 #include "base/time/time.h" |
| 13 #include "base/timer/timer.h" |
| 14 #include "content/browser/loader/resource_dispatcher_host_impl.h" |
| 15 #include "content/browser/loader/resource_handler.h" |
| 16 |
| 17 namespace net { |
| 18 class IOBuffer; |
| 19 class URLRequest; |
| 20 } // namespace net |
| 21 |
| 22 namespace content { |
| 23 |
| 24 class ResourceController; |
| 25 |
| 26 extern const int kNullResourceHandlerDefaultReadTimeoutSecs; |
| 27 |
| 28 // A ResourceHandler which reads the entire response and drops it on the |
| 29 // floor. It does not attempt to pass it to a child process (or even require a |
| 30 // child process to exist). |
| 31 class NullResourceHandler : public ResourceHandler { |
| 32 public: |
| 33 NullResourceHandler(net::URLRequest* request, |
| 34 ResourceDispatcherHostImpl* rdh, |
| 35 base::TimeDelta read_timeout); |
| 36 ~NullResourceHandler() override; |
| 37 |
| 38 // ResourceHandler implementation: |
| 39 void SetController(ResourceController* controller) override; |
| 40 bool OnUploadProgress(uint64 position, uint64 size) override; |
| 41 bool OnRequestRedirected(const net::RedirectInfo& redirect_info, |
| 42 ResourceResponse* response, |
| 43 bool* defer) override; |
| 44 bool OnResponseStarted(ResourceResponse* response, bool* defer) override; |
| 45 bool OnWillStart(const GURL& url, bool* defer) override; |
| 46 bool OnBeforeNetworkStart(const GURL& url, bool* defer) override; |
| 47 bool OnWillRead(scoped_refptr<net::IOBuffer>* buf, |
| 48 int* buf_size, |
| 49 int min_size) override; |
| 50 bool OnReadCompleted(int bytes_read, bool* defer) override; |
| 51 void OnResponseCompleted(const net::URLRequestStatus& status, |
| 52 const std::string& security_info, |
| 53 bool* defer) override; |
| 54 void OnDataDownloaded(int bytes_downloaded) override; |
| 55 |
| 56 private: |
| 57 void OnReadTimeout(); |
| 58 |
| 59 scoped_refptr<net::IOBuffer> read_buffer_; |
| 60 ResourceDispatcherHostImpl* rdh_; |
| 61 |
| 62 // OneShotTimer does not permit passing the task to the constructor. Since |
| 63 // that is convenient, use the base class instead |
| 64 base::Timer read_timer_; |
| 65 |
| 66 DISALLOW_COPY_AND_ASSIGN(NullResourceHandler); |
| 67 }; |
| 68 |
| 69 } // namespace content |
| 70 |
| 71 #endif // CONTENT_BROWSER_LOADER_NULL_RESOURCE_HANDLER_H_ |
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