1/*
2 * Copyright (c) 2024 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 <fstream>
18#include <sstream>
19#include <unistd.h>
20#include <regex>
21
22#include "config_policy_utils.h"
23#include "hilog_tag_wrapper.h"
24
25namespace OHOS {
26namespace AAFwk {
27bool JsonUtils::LoadConfiguration(const std::string& path, nlohmann::json& jsonBuf,
28    const std::string& defaultPath)
29{
30    std::string configPath = GetConfigPath(path, defaultPath);
31    TAG_LOGD(AAFwkTag::ABILITYMGR, "config path is: %{public}s", configPath.c_str());
32    if (!ReadFileInfoJson(configPath, jsonBuf)) {
33        return false;
34    }
35    return true;
36}
37
38std::string JsonUtils::GetConfigPath(const std::string& path, const std::string& defaultPath)
39{
40    char buf[MAX_PATH_LEN] = { 0 };
41    char *configPath = GetOneCfgFile(path.c_str(), buf, MAX_PATH_LEN);
42    if (configPath == nullptr || configPath[0] == '\0' || strlen(configPath) > MAX_PATH_LEN) {
43        return defaultPath;
44    }
45    return configPath;
46}
47
48bool JsonUtils::ReadFileInfoJson(const std::string &filePath, nlohmann::json &jsonBuf)
49{
50    if (access(filePath.c_str(), F_OK) != 0) {
51        TAG_LOGE(AAFwkTag::ABILITYMGR, "deepLink config not exist");
52        return false;
53    }
54
55    if (filePath.empty()) {
56        TAG_LOGE(AAFwkTag::ABILITYMGR, "filePath empty");
57        return false;
58    }
59
60    char path[PATH_MAX] = {0};
61    if (realpath(filePath.c_str(), path) == nullptr) {
62        TAG_LOGE(AAFwkTag::ABILITYMGR, "realpath error, errno: %{public}d", errno);
63        return false;
64    }
65
66    std::fstream in;
67    char errBuf[256];
68    errBuf[0] = '\0';
69    in.open(path, std::ios_base::in);
70    if (!in.is_open()) {
71        strerror_r(errno, errBuf, sizeof(errBuf));
72        TAG_LOGE(AAFwkTag::ABILITYMGR, "file not open: %{public}s", errBuf);
73        return false;
74    }
75
76    in.seekg(0, std::ios::end);
77    int64_t size = in.tellg();
78    if (size <= 0) {
79        TAG_LOGE(AAFwkTag::ABILITYMGR, "empty file");
80        in.close();
81        return false;
82    }
83
84    in.seekg(0, std::ios::beg);
85    jsonBuf = nlohmann::json::parse(in, nullptr, false);
86    in.close();
87    if (jsonBuf.is_discarded()) {
88        TAG_LOGE(AAFwkTag::ABILITYMGR, "bad profile file");
89        return false;
90    }
91
92    return true;
93}
94}  // namespace AAFwk
95}  // namespace OHOS