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 #include "bundle_data_storage.h"
17
18 #include <fstream>
19 #include <iomanip>
20
21 #include "app_log_wrapper.h"
22 #include "bundle_constants.h"
23 #include "bundle_profile.h"
24 #include "string_ex.h"
25
26 namespace OHOS {
27 namespace AppExecFwk {
LoadAllData(std::map<std::string,InnerBundleInfo> & infos)28 bool BundleDataStorage::LoadAllData(std::map<std::string, InnerBundleInfo> &infos)
29 {
30 APP_LOGI("load all installed bundle data to map");
31 std::fstream i(Constants::BUNDLE_DATA_BASE_FILE);
32 nlohmann::json jParse;
33 if (!i.is_open()) {
34 APP_LOGE("failed to open bundle database file");
35 // if file not exist, should create file here
36 std::ofstream o(Constants::BUNDLE_DATA_BASE_FILE);
37 o.close();
38 return false;
39 }
40 APP_LOGI("open bundle database file success");
41 i.seekg(0, std::ios::end);
42 int len = static_cast<int>(i.tellg());
43 if (len > 0) {
44 i.seekg(0, std::ios::beg);
45 jParse = nlohmann::json::parse(i, nullptr, false);
46 if (jParse.is_discarded()) {
47 APP_LOGE("bad bundle database file");
48 i.close();
49 return false;
50 }
51 for (auto &item : jParse.items()) {
52 InnerBundleInfo innerBundleInfo;
53 if (!innerBundleInfo.FromJson(item.value())) {
54 infos.try_emplace(item.key(), innerBundleInfo);
55 }
56 }
57 }
58 i.close();
59 return true;
60 }
61
SaveStorageBundleInfo(const InnerBundleInfo & innerBundleInfo)62 bool BundleDataStorage::SaveStorageBundleInfo(const InnerBundleInfo &innerBundleInfo)
63 {
64 APP_LOGI("save bundle data");
65 bool ret = true;
66 std::string appName = innerBundleInfo.GetBundleName();
67 std::fstream f(Constants::BUNDLE_DATA_BASE_FILE);
68 bool isExist = f.good();
69 if (isExist) {
70 nlohmann::json innerInfo;
71 innerBundleInfo.ToJson(innerInfo);
72 f.seekg(0, std::ios::end);
73 int len = static_cast<int>(f.tellg());
74 if (len == 0) {
75 nlohmann::json appRoot;
76 appRoot[appName] = innerInfo;
77 f << std::setw(Constants::DUMP_INDENT) << appRoot << std::endl;
78 } else {
79 f.seekg(0, std::ios::beg);
80 nlohmann::json jsonFile;
81 f >> jsonFile;
82 jsonFile[appName] = innerInfo;
83 f.seekp(0, std::ios::beg);
84 f << std::setw(Constants::DUMP_INDENT) << jsonFile << std::endl;
85 }
86 } else {
87 APP_LOGI("bundle database file not exist");
88 ret = false;
89 }
90 f.close();
91 return ret;
92 }
93
DeleteStorageBundleInfo(const InnerBundleInfo & innerBundleInfo)94 bool BundleDataStorage::DeleteStorageBundleInfo(const InnerBundleInfo &innerBundleInfo)
95 {
96 APP_LOGI("delete bundle data");
97 bool ret = false;
98 bool isEmpty = false;
99 std::string appName = innerBundleInfo.GetBundleName();
100 std::ifstream i(Constants::BUNDLE_DATA_BASE_FILE);
101 nlohmann::json jParse;
102 if (!i.is_open()) {
103 APP_LOGE("failed to open bundle database file");
104 return false;
105 } else {
106 i.seekg(0, std::ios::end);
107 int len = static_cast<int>(i.tellg());
108 if (len != 0) {
109 i.seekg(0, std::ios::beg);
110 i >> jParse;
111 if (jParse.find(appName) != jParse.end()) {
112 jParse.erase(appName);
113 isEmpty = (jParse.size() == 0);
114 ret = true;
115 } else {
116 APP_LOGE("not find appName = %{public}s", appName.c_str());
117 }
118 } else {
119 APP_LOGE("file is empty appName = %{private}s", appName.c_str());
120 }
121 }
122 i.close();
123
124 std::ofstream o(Constants::BUNDLE_DATA_BASE_FILE);
125 if (!o.is_open()) {
126 APP_LOGE("failed to open bundle database file");
127 ret = false;
128 } else {
129 if (!isEmpty) {
130 o << std::setw(Constants::DUMP_INDENT) << jParse;
131 }
132 }
133 o.close();
134 return ret;
135 }
136 } // namespace AppExecFwk
137 } // namespace OHOS
138