android_webview/native/permission/permission_request_handler.h

   1 // Copyright 2014 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 ANDROID_WEBVIEW_NATIVE_PERMISSION_PERMISSION_REQUEST_HANDLER_H
   6 #define ANDROID_WEBVIEW_NATIVE_PERMISSION_PERMISSION_REQUEST_HANDLER_H
   7
   8 #include <map>
   9 #include <vector>
  10
  11 #include "base/memory/scoped_ptr.h"
  12 #include "base/memory/weak_ptr.h"
  13 #include "content/public/browser/web_contents_observer.h"
  14 #include "url/gurl.h"
  15
  16 namespace android_webview {
  17
  18 class AwPermissionRequest;
  19 class AwPermissionRequestDelegate;
  20 class PermissionRequestHandlerClient;
  21
  22 // This class is used to send the permission requests, or cancel ongoing
  23 // requests.
  24 // It is owned by AwContents and has 1x1 mapping to AwContents. All methods
  25 // are running on UI thread.
  26 class PermissionRequestHandler : public content::WebContentsObserver {
  27  public:
  28   PermissionRequestHandler(PermissionRequestHandlerClient* client,
  29                            content::WebContents* aw_contents);
  30   ~PermissionRequestHandler() override;
  31
  32   // Send the given |request| to PermissionRequestHandlerClient.
  33   void SendRequest(scoped_ptr<AwPermissionRequestDelegate> request);
  34
  35   // Cancel the ongoing request initiated by |origin| for accessing |resources|.
  36   void CancelRequest(const GURL& origin, int64 resources);
  37
  38   // Allow |origin| to access the |resources|.
  39   void PreauthorizePermission(const GURL& origin, int64 resources);
  40
  41   // WebContentsObserver
  42   void NavigationEntryCommitted(
  43       const content::LoadCommittedDetails& load_details) override;
  44
  45  private:
  46   friend class TestPermissionRequestHandler;
  47
  48   typedef std::vector<base::WeakPtr<AwPermissionRequest> >::iterator
  49       RequestIterator;
  50
  51   // Return the request initiated by |origin| for accessing |resources|.
  52   RequestIterator FindRequest(const GURL& origin, int64 resources);
  53
  54   // Cancel the given request.
  55   void CancelRequestInternal(RequestIterator i);
  56
  57   void CancelAllRequests();
  58
  59   // Remove the invalid requests from requests_.
  60   void PruneRequests();
  61
  62   // Return true if |origin| were preauthorized to access |resources|.
  63   bool Preauthorized(const GURL& origin, int64 resources);
  64
  65   PermissionRequestHandlerClient* client_;
  66
  67   // A list of ongoing requests.
  68   std::vector<base::WeakPtr<AwPermissionRequest> > requests_;
  69
  70   std::map<std::string, int64> preauthorized_permission_;
  71
  72   // The unique id of the active NavigationEntry of the WebContents that we were
  73   // opened for. Used to help expire on requests.
  74   int contents_unique_id_;
  75
  76   DISALLOW_COPY_AND_ASSIGN(PermissionRequestHandler);
  77 };
  78
  79 }  // namespace android_webivew
  80
  81 #endif  // ANDROID_WEBVIEW_NATIVE_PERMISSION_PERMISSION_REQUEST_HANDLER_H