1 /* 2 * Copyright (c) 2023 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 SEHAP_CONTEXTS_TRIE_H 17 #define SEHAP_CONTEXTS_TRIE_H 18 19 #include <string> 20 #include <unordered_map> 21 22 #ifdef MCS_ENABLE 23 typedef enum LevelFrom { 24 LEVELFROM_NONE = 0, 25 LEVELFROM_APP, 26 LEVELFROM_USER, 27 LEVELFROM_ALL, 28 } LevelFrom; 29 #endif 30 31 typedef struct SehapContextInfo { 32 std::string context = ""; 33 bool isDomain = false; 34 #ifdef MCS_ENABLE 35 LevelFrom levelFrom = LEVELFROM_NONE; 36 std::string user = "u"; 37 #endif 38 } SehapContextInfo; 39 40 typedef struct SehapInsertParamInfo { 41 #ifdef MCS_ENABLE 42 LevelFrom levelFrom = LEVELFROM_NONE; 43 std::string user = "u"; 44 #endif 45 std::string domain = ""; 46 std::string type = ""; 47 std::string extension = ""; 48 } SehapInsertParamInfo; 49 50 typedef struct ExtensionInfo { 51 std::string domain; 52 #ifdef MCS_ENABLE 53 LevelFrom levelFrom = LEVELFROM_NONE; 54 std::string user; 55 #endif 56 } ExtensionInfo; 57 58 typedef struct NodeTypeInfo { 59 bool isEnd = false; 60 std::string domain; 61 std::string type; 62 #ifdef MCS_ENABLE 63 LevelFrom levelFrom = LEVELFROM_NONE; 64 std::string user; 65 #endif 66 std::unordered_map<std::string, ExtensionInfo> extensionMap; 67 68 void Insert(const SehapInsertParamInfo ¶mInfo); 69 SehapContextInfo Search(bool isDomain, const std::string& extension) const; 70 } NodeTypeInfo; 71 72 class SehapContextsTrie { 73 public: SehapContextsTrie()74 SehapContextsTrie() {}; ~SehapContextsTrie()75 ~SehapContextsTrie() {}; 76 77 bool Insert(const std::string ¶Name, const SehapInsertParamInfo ¶mInfo); 78 SehapContextInfo Search(const std::string ¶Name, bool isDomain, const std::string &extension = ""); 79 void Clear(); 80 81 NodeTypeInfo prefixInfo; 82 NodeTypeInfo matchedInfo; 83 84 private: 85 std::vector<std::string> SplitString(const std::string ¶Name); 86 SehapContextsTrie* FindChild(const std::string &element); 87 std::unordered_map<std::string, SehapContextsTrie *> children; 88 }; 89 #endif // SEHAP_CONTEXTS_TRIE_H 90