1 /* 2 * Copyright (c) 2021 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 #define LOG_TAG "PermissionValidator" 17 18 #include "permission_validator.h" 19 #include "accesstoken_kit.h" 20 #include "log_print.h" 21 22 namespace OHOS { 23 namespace DistributedKv { 24 using namespace Security::AccessToken; GetInstance()25PermissionValidator &PermissionValidator::GetInstance() 26 { 27 static PermissionValidator permissionValidator; 28 return permissionValidator; 29 } 30 31 // check whether the client process have enough privilege to share data with the other devices. CheckSyncPermission(uint32_t tokenId)32bool PermissionValidator::CheckSyncPermission(uint32_t tokenId) 33 { 34 auto type = AccessTokenKit::GetTokenTypeFlag(tokenId); 35 if (type == TOKEN_NATIVE || type == TOKEN_SHELL) { 36 return true; 37 } 38 if (AccessTokenKit::GetTokenTypeFlag(tokenId) == TOKEN_HAP) { 39 return (AccessTokenKit::VerifyAccessToken(tokenId, DISTRIBUTED_DATASYNC) == PERMISSION_GRANTED); 40 } 41 42 ZLOGI("invalid tokenid:%u", tokenId); 43 return false; 44 } 45 } // namespace DistributedKv 46 } // namespace OHOS 47