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| 1 // Copyright (c) 2010 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 WEBKIT_GLUE_PLUGINS_PEPPER_URL_LOADER_H_ | |
| 6 #define WEBKIT_GLUE_PLUGINS_PEPPER_URL_LOADER_H_ | |
| 7 | |
| 8 #include <deque> | |
| 9 | |
| 10 #include "base/scoped_ptr.h" | |
| 11 #include "ppapi/c/pp_completion_callback.h" | |
| 12 #include "ppapi/c/trusted/ppb_url_loader_trusted.h" | |
| 13 #include "third_party/WebKit/WebKit/chromium/public/WebURLLoaderClient.h" | |
| 14 #include "webkit/glue/plugins/pepper_plugin_instance.h" | |
| 15 #include "webkit/glue/plugins/pepper_resource.h" | |
| 16 | |
| 17 struct PPB_URLLoader; | |
| 18 struct PPB_URLLoaderTrusted; | |
| 19 | |
| 20 namespace WebKit { | |
| 21 class WebFrame; | |
| 22 class WebURL; | |
| 23 } | |
| 24 | |
| 25 namespace pepper { | |
| 26 | |
| 27 class PluginInstance; | |
| 28 class URLRequestInfo; | |
| 29 class URLResponseInfo; | |
| 30 | |
| 31 class URLLoader : public Resource, | |
| 32 public WebKit::WebURLLoaderClient, | |
| 33 public PluginInstance::Observer { | |
| 34 public: | |
| 35 URLLoader(PluginInstance* instance, bool main_document_loader); | |
| 36 virtual ~URLLoader(); | |
| 37 | |
| 38 // Returns a pointer to the interface implementing PPB_URLLoader that is | |
| 39 // exposed to the plugin. | |
| 40 static const PPB_URLLoader* GetInterface(); | |
| 41 | |
| 42 // Returns a pointer to the interface implementing PPB_URLLoaderTrusted that | |
| 43 // is exposed to the plugin. | |
| 44 static const PPB_URLLoaderTrusted* GetTrustedInterface(); | |
| 45 | |
| 46 // Resource overrides. | |
| 47 virtual URLLoader* AsURLLoader(); | |
| 48 | |
| 49 // PPB_URLLoader implementation. | |
| 50 int32_t Open(URLRequestInfo* request, PP_CompletionCallback callback); | |
| 51 int32_t FollowRedirect(PP_CompletionCallback callback); | |
| 52 bool GetUploadProgress(int64_t* bytes_sent, | |
| 53 int64_t* total_bytes_to_be_sent); | |
| 54 bool GetDownloadProgress(int64_t* bytes_received, | |
| 55 int64_t* total_bytes_to_be_received); | |
| 56 int32_t ReadResponseBody(char* buffer, int32_t bytes_to_read, | |
| 57 PP_CompletionCallback callback); | |
| 58 int32_t FinishStreamingToFile(PP_CompletionCallback callback); | |
| 59 void Close(); | |
| 60 | |
| 61 // PPB_URLLoaderTrusted implementation. | |
| 62 void GrantUniversalAccess(); | |
| 63 void SetStatusCallback(PP_URLLoaderTrusted_StatusCallback cb); | |
| 64 | |
| 65 // WebKit::WebURLLoaderClient implementation. | |
| 66 virtual void willSendRequest(WebKit::WebURLLoader* loader, | |
| 67 WebKit::WebURLRequest& new_request, | |
| 68 const WebKit::WebURLResponse& redir_response); | |
| 69 virtual void didSendData(WebKit::WebURLLoader* loader, | |
| 70 unsigned long long bytes_sent, | |
| 71 unsigned long long total_bytes_to_be_sent); | |
| 72 virtual void didReceiveResponse(WebKit::WebURLLoader* loader, | |
| 73 const WebKit::WebURLResponse& response); | |
| 74 virtual void didDownloadData(WebKit::WebURLLoader* loader, | |
| 75 int data_length); | |
| 76 virtual void didReceiveData(WebKit::WebURLLoader* loader, | |
| 77 const char* data, | |
| 78 int data_length); | |
| 79 virtual void didFinishLoading(WebKit::WebURLLoader* loader, | |
| 80 double finish_time); | |
| 81 virtual void didFail(WebKit::WebURLLoader* loader, | |
| 82 const WebKit::WebURLError& error); | |
| 83 | |
| 84 // PluginInstance::Observer implementation. | |
| 85 virtual void InstanceDestroyed(PluginInstance* instance); | |
| 86 | |
| 87 URLResponseInfo* response_info() const { return response_info_; } | |
| 88 | |
| 89 private: | |
| 90 void RunCallback(int32_t result); | |
| 91 size_t FillUserBuffer(); | |
| 92 | |
| 93 // Converts a WebURLResponse to a URLResponseInfo and saves it. | |
| 94 void SaveResponse(const WebKit::WebURLResponse& response); | |
| 95 | |
| 96 int32_t CanRequest(const WebKit::WebFrame* frame, const WebKit::WebURL& url); | |
| 97 | |
| 98 // Calls the status_callback_ (if any) with the current upload and download | |
| 99 // progress. Call this function if you update any of these values to | |
| 100 // synchronize an out-of-process plugin's state. | |
| 101 void UpdateStatus(); | |
| 102 | |
| 103 // Returns true if the plugin has requested we record download or upload | |
| 104 // progress. When false, we don't need to update the counters. We go out of | |
| 105 // our way not to allow access to this information unless it's requested, | |
| 106 // even when it would be easier just to return it and not check, so that | |
| 107 // plugins don't depend on access without setting the flag. | |
| 108 bool RecordDownloadProgress() const; | |
| 109 bool RecordUploadProgress() const; | |
| 110 | |
| 111 // This will be NULL if the instance has been deleted but this URLLoader was | |
| 112 // somehow leaked. In general, you should not need to check this for NULL. | |
| 113 // However, if you see a NULL pointer crash, that means somebody is holding | |
| 114 // a reference to this object longer than the PluginInstance's lifetime. | |
| 115 PluginInstance* instance_; | |
| 116 | |
| 117 // If true, then the plugin instance is a full-frame plugin and we're just | |
| 118 // wrapping the main document's loader (i.e. loader_ is null). | |
| 119 bool main_document_loader_; | |
| 120 scoped_ptr<WebKit::WebURLLoader> loader_; | |
| 121 scoped_refptr<URLRequestInfo> request_info_; | |
| 122 scoped_refptr<URLResponseInfo> response_info_; | |
| 123 PP_CompletionCallback pending_callback_; | |
| 124 std::deque<char> buffer_; | |
| 125 int64_t bytes_sent_; | |
| 126 int64_t total_bytes_to_be_sent_; | |
| 127 int64_t bytes_received_; | |
| 128 int64_t total_bytes_to_be_received_; | |
| 129 char* user_buffer_; | |
| 130 size_t user_buffer_size_; | |
| 131 int32_t done_status_; | |
| 132 | |
| 133 bool has_universal_access_; | |
| 134 | |
| 135 PP_URLLoaderTrusted_StatusCallback status_callback_; | |
| 136 }; | |
| 137 | |
| 138 } // namespace pepper | |
| 139 | |
| 140 #endif // WEBKIT_GLUE_PLUGINS_PEPPER_URL_LOADER_H_ | |
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