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 "json_utils.h"
17 #include "appspawn_server.h"
18
19 #include <cerrno>
20 #include <sstream>
21 #include <fstream>
22
23 using namespace std;
24 using namespace OHOS;
25
26 namespace OHOS {
27 namespace AppSpawn {
GetJsonObjFromJson(nlohmann::json & jsonObj,const std::string & jsonPath)28 bool JsonUtils::GetJsonObjFromJson(nlohmann::json &jsonObj, const std::string &jsonPath)
29 {
30 APPSPAWN_CHECK(jsonPath.length() <= PATH_MAX, return false, "jsonPath is too long");
31 std::ifstream jsonFileStream;
32 jsonFileStream.open(jsonPath.c_str(), std::ios::in);
33 APPSPAWN_CHECK_ONLY_EXPER(jsonFileStream.is_open(), return false);
34 std::ostringstream buf;
35 char ch;
36 while (buf && jsonFileStream.get(ch)) {
37 buf.put(ch);
38 }
39 jsonFileStream.close();
40 jsonObj = nlohmann::json::parse(buf.str(), nullptr, false);
41 APPSPAWN_CHECK(jsonObj.is_structured(), return false, "Parse json file into jsonObj failed.");
42 return true;
43 }
44
GetStringFromJson(const nlohmann::json & json,const std::string & key,std::string & value)45 bool JsonUtils::GetStringFromJson(const nlohmann::json &json, const std::string &key, std::string &value)
46 {
47 APPSPAWN_CHECK(json.is_object(), return false, "json is not object.");
48 bool isRet = json.find(key) != json.end() && json.at(key).is_string();
49 if (isRet) {
50 value = json.at(key).get<std::string>();
51 APPSPAWN_LOGV("Find key[%{public}s] : %{public}s successful.", key.c_str(), value.c_str());
52 return true;
53 } else {
54 return false;
55 }
56 }
57 } // namespace AppSpawn
58 } // namespace OHOS