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