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      1 // Copyright (c) 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.
      4 
      5 #ifndef CONTENT_BROWSER_ANDROID_MEDIA_RESOURCE_GETTER_IMPL_H_
      6 #define CONTENT_BROWSER_ANDROID_MEDIA_RESOURCE_GETTER_IMPL_H_
      7 
      8 #include <jni.h>
      9 #include <string>
     10 
     11 #include "base/memory/ref_counted.h"
     12 #include "base/memory/weak_ptr.h"
     13 #include "base/synchronization/waitable_event.h"
     14 #include "media/base/android/media_resource_getter.h"
     15 #include "net/cookies/canonical_cookie.h"
     16 
     17 namespace fileapi {
     18 class FileSystemContext;
     19 }
     20 
     21 namespace net {
     22 class URLRequestContextGetter;
     23 }
     24 
     25 namespace content {
     26 
     27 class BrowserContext;
     28 class ResourceContext;
     29 
     30 // This class implements media::MediaResourceGetter to retrieve resources
     31 // asynchronously on the UI thread.
     32 class MediaResourceGetterImpl : public media::MediaResourceGetter {
     33  public:
     34   // Construct a MediaResourceGetterImpl object. |browser_context| and
     35   // |renderer_id| are passed to retrieve the CookieStore.
     36   // |file_system_context| are used to get the platform path.
     37   MediaResourceGetterImpl(BrowserContext* browser_context,
     38                           fileapi::FileSystemContext* file_system_context,
     39                           int renderer_id, int routing_id);
     40   virtual ~MediaResourceGetterImpl();
     41 
     42   // media::MediaResourceGetter implementation.
     43   // Must be called on the UI thread.
     44   virtual void GetCookies(const GURL& url,
     45                           const GURL& first_party_for_cookies,
     46                           const GetCookieCB& callback) OVERRIDE;
     47   virtual void GetPlatformPathFromFileSystemURL(
     48       const GURL& url,
     49       const GetPlatformPathCB& callback) OVERRIDE;
     50   virtual void ExtractMediaMetadata(
     51       const std::string& url, const std::string& cookies,
     52       const ExtractMediaMetadataCB& callback) OVERRIDE;
     53 
     54   static bool RegisterMediaResourceGetter(JNIEnv* env);
     55 
     56  private:
     57   // Called when GetCookies() finishes.
     58   void GetCookiesCallback(
     59       const GetCookieCB& callback, const std::string& cookies);
     60 
     61   // Called when GetPlatformPathFromFileSystemURL() finishes.
     62   void GetPlatformPathCallback(
     63       const GetPlatformPathCB& callback, const std::string& platform_path);
     64 
     65   // BrowserContext to retrieve URLRequestContext and ResourceContext.
     66   BrowserContext* browser_context_;
     67 
     68   // FileSystemContext to be used on FILE thread.
     69   fileapi::FileSystemContext* file_system_context_;
     70 
     71   // Used to post tasks.
     72   base::WeakPtrFactory<MediaResourceGetterImpl> weak_this_;
     73 
     74   // Render process id, used to check whether the process can access cookies.
     75   int renderer_id_;
     76 
     77   // Routing id for the render view, used to check tab specific cookie policy.
     78   int routing_id_;
     79 
     80   DISALLOW_COPY_AND_ASSIGN(MediaResourceGetterImpl);
     81 };
     82 
     83 }  // namespace content
     84 
     85 #endif  // CONTENT_BROWSER_ANDROID_MEDIA_RESOURCE_GETTER_IMPL_H_
     86