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 "KvStoreUtils" 17 18 #include "kvstore_utils.h" 19 #include "permission_validator.h" 20 21 namespace OHOS { 22 namespace DistributedKv { 23 constexpr int32_t HEAD_SIZE = 3; 24 constexpr int32_t END_SIZE = 3; 25 constexpr int32_t MIN_SIZE = HEAD_SIZE + END_SIZE + 3; 26 constexpr const char *REPLACE_CHAIN = "***"; 27 constexpr const char *DEFAULT_ANONYMOUS = "******"; 28 std::atomic<uint64_t> KvStoreUtils::sequenceId_{ 0 }; ToBeAnonymous(const std::string & name)29std::string KvStoreUtils::ToBeAnonymous(const std::string &name) 30 { 31 if (name.length() <= HEAD_SIZE) { 32 return DEFAULT_ANONYMOUS; 33 } 34 35 if (name.length() < MIN_SIZE) { 36 return (name.substr(0, HEAD_SIZE) + REPLACE_CHAIN); 37 } 38 39 return (name.substr(0, HEAD_SIZE) + REPLACE_CHAIN + name.substr(name.length() - END_SIZE, END_SIZE)); 40 } 41 GetProviderInstance()42AppDistributedKv::CommunicationProvider &KvStoreUtils::GetProviderInstance() 43 { 44 #ifdef CONFIG_PUBLIC_VERSION 45 return AppDistributedKv::CommunicationProvider::GetInstance(); 46 #else 47 return *(AppDistributedKv::CommunicationProvider::MakeCommunicationProvider().get()); 48 #endif 49 } 50 GenerateSequenceId()51uint64_t KvStoreUtils::GenerateSequenceId() 52 { 53 return ++sequenceId_; 54 } 55 } // namespace DistributedKv 56 } // namespace OHOS 57