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| 1 // Copyright 2016 The Chromium Authors. All rights reserved. | 1 // Copyright 2016 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef CHROME_BROWSER_PERMISSIONS_DELEGATION_TRACKER_H_ | 5 #ifndef CHROME_BROWSER_PERMISSIONS_DELEGATION_TRACKER_H_ |
| 6 #define CHROME_BROWSER_PERMISSIONS_DELEGATION_TRACKER_H_ | 6 #define CHROME_BROWSER_PERMISSIONS_DELEGATION_TRACKER_H_ |
| 7 | 7 |
| 8 #include <memory> | 8 #include <memory> |
| 9 #include <unordered_map> | 9 #include <unordered_map> |
| 10 #include <vector> | 10 #include <vector> |
| 11 | 11 |
| 12 #include "base/macros.h" | 12 #include "base/macros.h" |
| 13 #include "components/content_settings/core/common/content_settings_types.h" |
| 13 | 14 |
| 14 namespace content { | 15 namespace content { |
| 15 | 16 |
| 16 class RenderFrameHost; | 17 class RenderFrameHost; |
| 17 enum class PermissionType; | |
| 18 | 18 |
| 19 } // namespace content | 19 } // namespace content |
| 20 | 20 |
| 21 // Keeps track of which permissions are delegated to frames. There are two | 21 // Keeps track of which permissions are delegated to frames. There are two |
| 22 // operations possible: | 22 // operations possible: |
| 23 // 1) Setting the permissions which are delegated to a frame by its parent, and | 23 // 1) Setting the permissions which are delegated to a frame by its parent, and |
| 24 // 2) Querying whether a particular permission is granted to a frame. | 24 // 2) Querying whether a particular permission is granted to a frame. |
| 25 // | 25 // |
| 26 // If a frame is destroyed or navigated, permissions will no longer be delegated | 26 // If a frame is destroyed or navigated, permissions will no longer be delegated |
| 27 // to it. | 27 // to it. |
| 28 class DelegationTracker { | 28 class DelegationTracker { |
| 29 public: | 29 public: |
| 30 DelegationTracker(); | 30 DelegationTracker(); |
| 31 ~DelegationTracker(); | 31 ~DelegationTracker(); |
| 32 | 32 |
| 33 // Set the |permissions| which are delegated to |child_rfh| by its parent. | 33 // Set the |permissions| which are delegated to |child_rfh| by its parent. |
| 34 void SetDelegatedPermissions( | 34 void SetDelegatedPermissions( |
| 35 content::RenderFrameHost* child_rfh, | 35 content::RenderFrameHost* child_rfh, |
| 36 const std::vector<content::PermissionType>& permissions); | 36 const std::vector<ContentSettingsType>& permissions); |
| 37 | 37 |
| 38 // Query whether |permission| is granted to |requesting_rfh|. This will return | 38 // Query whether |permission| is granted to |requesting_rfh|. This will return |
| 39 // true if |requesting_rfh| is a top-level frame or if it has been delegated | 39 // true if |requesting_rfh| is a top-level frame or if it has been delegated |
| 40 // |permission| through its ancestor frames. Specifically, each frame on the | 40 // |permission| through its ancestor frames. Specifically, each frame on the |
| 41 // path between the main frame and |requesting_rfh| must either delegate | 41 // path between the main frame and |requesting_rfh| must either delegate |
| 42 // |permission| to it's child OR have the same origin as it's child on that | 42 // |permission| to it's child OR have the same origin as it's child on that |
| 43 // path in order for this to return true. | 43 // path in order for this to return true. |
| 44 bool IsGranted(content::RenderFrameHost* requesting_rfh, | 44 bool IsGranted(content::RenderFrameHost* requesting_rfh, |
| 45 const content::PermissionType& permission); | 45 ContentSettingsType permission); |
| 46 | 46 |
| 47 private: | 47 private: |
| 48 class DelegatedForChild; | 48 class DelegatedForChild; |
| 49 | 49 |
| 50 void RenderFrameHostChanged(content::RenderFrameHost* rfh); | 50 void RenderFrameHostChanged(content::RenderFrameHost* rfh); |
| 51 | 51 |
| 52 std::unordered_map<content::RenderFrameHost*, | 52 std::unordered_map<content::RenderFrameHost*, |
| 53 std::unique_ptr<DelegatedForChild>> | 53 std::unique_ptr<DelegatedForChild>> |
| 54 delegated_permissions_; | 54 delegated_permissions_; |
| 55 | 55 |
| 56 DISALLOW_COPY_AND_ASSIGN(DelegationTracker); | 56 DISALLOW_COPY_AND_ASSIGN(DelegationTracker); |
| 57 }; | 57 }; |
| 58 | 58 |
| 59 #endif // CHROME_BROWSER_PERMISSIONS_DELEGATION_TRACKER_H_ | 59 #endif // CHROME_BROWSER_PERMISSIONS_DELEGATION_TRACKER_H_ |
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