1 /*
2 * Copyright (c) 2022 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 #include "risk_analysis_model.h"
17
18 #include <nlohmann/json.hpp>
19
20 #include "risk_analysis_define.h"
21 #include "security_guard_log.h"
22
23 namespace OHOS::Security::SecurityGuard {
SetEventInfo(int64_t eventId,std::string status,std::string & eventInfo)24 void RiskAnalysisModel::SetEventInfo(int64_t eventId, std::string status, std::string &eventInfo)
25 {
26 eventInfo += "[" + std::to_string(eventId) + ":" + status + "]";
27 }
28
RiskAnalysis(std::vector<SecEvent> & eventData,std::string & eventInfo)29 ErrorCode RiskAnalysisModel::RiskAnalysis(std::vector<SecEvent> &eventData, std::string &eventInfo)
30 {
31 for (const SecEvent &data : eventData) {
32 nlohmann::json jsonObj = nlohmann::json::parse(data.content, nullptr, false);
33 if (jsonObj.is_discarded()) {
34 SGLOGE("json err");
35 return JSON_ERR;
36 }
37
38 auto content = jsonObj.get<EventContentSt>();
39 if (content.cred != CREDIBLE) {
40 SetEventInfo(data.eventId, "INCREDIBLE", eventInfo);
41 SGLOGE("not cred");
42 continue;
43 }
44
45 if (content.status != SAFE) {
46 SetEventInfo(data.eventId, "RISK", eventInfo);
47 SGLOGE("status error");
48 return FAILED;
49 }
50 SetEventInfo(data.eventId, "SAFE", eventInfo);
51 }
52
53 SGLOGI("no risk");
54 return SUCCESS;
55 }
56 }
57