1 // Copyright 2013 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.
5 #ifndef CONTENT_RENDERER_MEDIA_ANDROID_MEDIA_INFO_LOADER_H_
6 #define CONTENT_RENDERER_MEDIA_ANDROID_MEDIA_INFO_LOADER_H_
10 #include "base/callback.h"
11 #include "base/memory/scoped_ptr.h"
12 #include "base/time/time.h"
13 #include "content/common/content_export.h"
14 #include "content/renderer/media/active_loader.h"
15 #include "third_party/WebKit/public/platform/WebMediaPlayer.h"
16 #include "third_party/WebKit/public/platform/WebURLLoaderClient.h"
27 // This class provides additional information about a media URL. Currently it
28 // can be used to determine if a media URL has a single security origin and
29 // whether the URL passes a CORS access check.
30 class CONTENT_EXPORT MediaInfoLoader : private blink::WebURLLoaderClient {
32 // Status codes for start operations on MediaInfoLoader.
34 // The operation failed, which may have been due to:
36 // - Server replied 4xx/5xx
37 // - The response was invalid
38 // - Connection was terminated
40 // At this point you should delete the loader.
43 // Everything went as planned.
47 // Start loading information about the given media URL.
48 // |url| - URL for the media resource to be loaded.
49 // |cors_mode| - HTML media element's crossorigin attribute.
50 // |ready_cb| - Called when media info has finished or failed loading.
51 typedef base::Callback<void(Status)> ReadyCB;
54 blink::WebMediaPlayer::CORSMode cors_mode,
55 const ReadyCB& ready_cb);
56 virtual ~MediaInfoLoader();
58 // Start loading media info.
59 void Start(blink::WebFrame* frame);
61 // Returns true if the media resource has a single origin, false otherwise.
62 // Only valid to call after the loader becomes ready.
63 bool HasSingleOrigin() const;
65 // Returns true if the media resource passed a CORS access control check.
66 // Only valid to call after the loader becomes ready.
67 bool DidPassCORSAccessCheck() const;
70 friend class MediaInfoLoaderTest;
72 // blink::WebURLLoaderClient implementation.
73 virtual void willSendRequest(
74 blink::WebURLLoader* loader,
75 blink::WebURLRequest& newRequest,
76 const blink::WebURLResponse& redirectResponse);
77 virtual void didSendData(
78 blink::WebURLLoader* loader,
79 unsigned long long bytesSent,
80 unsigned long long totalBytesToBeSent);
81 virtual void didReceiveResponse(
82 blink::WebURLLoader* loader,
83 const blink::WebURLResponse& response);
84 virtual void didDownloadData(
85 blink::WebURLLoader* loader,
87 int encodedDataLength);
88 virtual void didReceiveData(
89 blink::WebURLLoader* loader,
92 int encoded_data_length);
93 virtual void didReceiveCachedMetadata(
94 blink::WebURLLoader* loader,
95 const char* data, int dataLength);
96 virtual void didFinishLoading(
97 blink::WebURLLoader* loader,
100 blink::WebURLLoader* loader,
101 const blink::WebURLError&);
103 void DidBecomeReady(Status status);
105 // Injected WebURLLoader instance for testing purposes.
106 scoped_ptr<blink::WebURLLoader> test_loader_;
108 // Keeps track of an active WebURLLoader and associated state.
109 scoped_ptr<ActiveLoader> active_loader_;
113 blink::WebMediaPlayer::CORSMode cors_mode_;
117 base::TimeTicks start_time_;
119 DISALLOW_COPY_AND_ASSIGN(MediaInfoLoader);
122 } // namespace content
124 #endif // CONTENT_RENDERER_MEDIA_ANDROID_MEDIA_INFO_LOADER_H_