1 /*
2  * Copyright (c) 2024-2024 Huawei Device Co., Ltd.
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at
6  *
7  *     http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  */
15 #ifndef CAMERA_PRIVACY_H
16 #define CAMERA_PRIVACY_H
17 
18 #include <refbase.h>
19 #include <memory>
20 #include "camera_util.h"
21 #include "accesstoken_kit.h"
22 #include "perm_state_change_callback_customize.h"
23 #include "privacy_kit.h"
24 #include "state_customized_cbk.h"
25 
26 namespace OHOS {
27 namespace CameraStandard {
28 class HCameraDevice;
29 class PermissionStatusChangeCb : public Security::AccessToken::PermStateChangeCallbackCustomize {
30 public:
PermissionStatusChangeCb( wptr<HCameraDevice> device, const Security::AccessToken::PermStateChangeScope& scopeInfo)31     explicit PermissionStatusChangeCb(
32         wptr<HCameraDevice> device, const Security::AccessToken::PermStateChangeScope& scopeInfo)
33         : PermStateChangeCallbackCustomize(scopeInfo), cameraDevice_(device)
34     {}
35     virtual ~PermissionStatusChangeCb() = default;
36     void PermStateChangeCallback(Security::AccessToken::PermStateChangeInfo& result) override;
37 
38 private:
39     wptr<HCameraDevice> cameraDevice_;
40 };
41 
42 class CameraUseStateChangeCb : public Security::AccessToken::StateCustomizedCbk {
43 public:
CameraUseStateChangeCb(wptr<HCameraDevice> device)44     explicit CameraUseStateChangeCb(wptr<HCameraDevice> device) : cameraDevice_(device) {}
45     virtual ~CameraUseStateChangeCb() = default;
46     void StateChangeNotify(Security::AccessToken::AccessTokenID tokenId, bool isShowing) override;
47 
48 private:
49     wptr<HCameraDevice> cameraDevice_;
50 };
51 
52 class CameraPrivacy : public RefBase {
53 public:
CameraPrivacy(wptr<HCameraDevice> device, uint32_t callingTokenId, int32_t pid)54     explicit CameraPrivacy(wptr<HCameraDevice> device, uint32_t callingTokenId, int32_t pid)
55         : pid_(pid), callerToken_(callingTokenId), cameraDevice_(device) {}
56     ~CameraPrivacy();
57     bool RegisterPermissionCallback();
58     void UnregisterPermissionCallback();
59     bool StartUsingPermissionCallback();
60     void StopUsingPermissionCallback();
61     bool AddCameraPermissionUsedRecord();
62     bool IsAllowUsingCamera();
63 
64 private:
65     int32_t pid_;
66     uint32_t callerToken_;
67     wptr<HCameraDevice> cameraDevice_;
68     std::shared_ptr<PermissionStatusChangeCb> permissionCallbackPtr_;
69     std::shared_ptr<CameraUseStateChangeCb> cameraUseCallbackPtr_;
70 };
71 } // namespace CameraStandard
72 } // namespace OHOS
73 #endif // CAMERA_PRIVACY_H