1 /*
2  * Copyright (c) 2022-2024 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 
16 #ifndef PERMISSION_CHECKER_H
17 #define PERMISSION_CHECKER_H
18 #include "access_token.h"
19 
20 namespace OHOS::AVSession {
21 
22 class PermissionChecker {
23 public:
24     static const int32_t CHECK_SYSTEM_PERMISSION = 0;
25     static const int32_t CHECK_MEDIA_RESOURCES_PERMISSION = 1;
26 
27     static PermissionChecker& GetInstance();
28 
29     int32_t CheckSystemPermission(Security::AccessToken::AccessTokenID tokenId);
30 
31     int32_t CheckPermission(int32_t checkPermissionType);
32 
33     static bool CheckSystemPermissionByUid(int uid);
34 
35 private:
36     static constexpr const char* MANAGE_MEDIA_RESOURCES = "ohos.permission.MANAGE_MEDIA_RESOURCES";
37     static constexpr int UID_TRANSFORM_DIVISOR = 200000;
38 
39     bool IsSystemApp();
40     int32_t CheckMediaResourcePermission(
41         Security::AccessToken::AccessTokenID callerToken, std::string permissionName);
42 };
43 } // namespace OHOS::AVSession
44 #endif // PERMISSION_CHECKER_H