1 /*
2 * Copyright (c) 2021-2024 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 "notification_clone_manager.h"
17
18 #include <fcntl.h>
19 #include <unistd.h>
20 #include <fstream>
21 #include <sys/types.h>
22 #include <sys/stat.h>
23 #include <sys/sendfile.h>
24
25 #include "ans_log_wrapper.h"
26 #include "nlohmann/json.hpp"
27 #include "notification_clone_disturb_service.h"
28 #include "notification_clone_bundle_service.h"
29 #include "notification_clone_util.h"
30
31 namespace OHOS {
32 namespace Notification {
33
34 const int ANS_CLONE_ERROR = -1;
35 constexpr const char *CLONE_ITEM_BUNDLE_INFO = "notificationBundle";
36 constexpr const char *CLONE_ITEM_DISTURB = "notificationDisturb";
37 constexpr const char *BACKUP_CONFIG_FILE_PATH = "/data/service/el1/public/notification/backup_config.conf";
38
GetInstance()39 NotificationCloneManager& NotificationCloneManager::GetInstance()
40 {
41 static NotificationCloneManager notificationCloneManager;
42 return notificationCloneManager;
43 }
44
SetBackUpReply()45 static std::string SetBackUpReply()
46 {
47 nlohmann::json reply;
48 nlohmann::json resultInfo = nlohmann::json::array();
49 nlohmann::json errorInfo;
50
51 errorInfo["type"] = "ErrorInfo";
52 errorInfo["errorCode"] = std::to_string(ERR_OK);
53 errorInfo["errorInfo"] = "";
54
55 resultInfo.emplace_back(errorInfo);
56 reply["resultInfo"] = resultInfo;
57
58 return reply.dump();
59 }
60
OnBackup(MessageParcel & data,MessageParcel & reply)61 int32_t NotificationCloneManager::OnBackup(MessageParcel& data, MessageParcel& reply)
62 {
63 if (cloneTemplates.empty()) {
64 ANS_LOGI("Notification no need Backup.");
65 return ERR_OK;
66 }
67
68 nlohmann::json jsonObject;
69 for (auto iter = cloneTemplates.begin(); iter != cloneTemplates.end(); ++iter) {
70 nlohmann::json jsonItem;
71 auto cloneTemplate = iter->second;
72 if (cloneTemplate == nullptr) {
73 ANS_LOGW("Notification OnBackup %{public}s funtion is null.", iter->first.c_str());
74 continue;
75 }
76 if (iter->second->OnBackup(jsonItem) != ERR_OK) {
77 ANS_LOGW("Notification OnBackup %{public}s failed.", iter->first.c_str());
78 continue;
79 }
80 jsonObject[iter->first] = jsonItem;
81 }
82
83 if (SaveConfig(jsonObject.dump()) != ERR_OK) {
84 return ANS_CLONE_ERROR;
85 }
86
87 UniqueFd fd = UniqueFd(open(BACKUP_CONFIG_FILE_PATH, O_RDONLY));
88 if (fd.Get() < 0) {
89 ANS_LOGW("Notification open file failed.");
90 return ANS_CLONE_ERROR;
91 }
92
93 if (reply.WriteFileDescriptor(fd) == false) {
94 close(fd.Release());
95 ANS_LOGW("Notification write file descriptor failed!");
96 return ANS_CLONE_ERROR;
97 }
98
99 ANS_LOGI("Notification OnBackup end fd: %{public}d.", fd.Get());
100 close(fd.Release());
101 return ERR_OK;
102 }
103
OnRestore(MessageParcel & data,MessageParcel & reply)104 int32_t NotificationCloneManager::OnRestore(MessageParcel& data, MessageParcel& reply)
105 {
106 reply.WriteString(SetBackUpReply());
107 std::string storeMessage;
108 UniqueFd fd(data.ReadFileDescriptor());
109 if (LoadConfig(fd, storeMessage) != ERR_OK) {
110 close(fd.Release());
111 RemoveBackUpFile();
112 return ANS_CLONE_ERROR;
113 }
114
115 RemoveBackUpFile();
116 nlohmann::json jsonObject = nlohmann::json::parse(storeMessage, nullptr, false);
117 if (jsonObject.is_null() || !jsonObject.is_object()) {
118 ANS_LOGE("Invalid JSON object");
119 return ANS_CLONE_ERROR;
120 }
121 for (auto iter = cloneTemplates.begin(); iter != cloneTemplates.end(); ++iter) {
122 if (jsonObject.contains(iter->first) && iter->second != nullptr) {
123 iter->second->OnRestore(jsonObject.at(iter->first));
124 }
125 }
126 return ERR_OK;
127 }
128
NotificationCloneManager()129 NotificationCloneManager::NotificationCloneManager()
130 {
131 ANS_LOGI("Notification clone manager init.");
132 cloneTemplates.insert_or_assign(CLONE_ITEM_BUNDLE_INFO, NotificationCloneBundle::GetInstance());
133 cloneTemplates.insert_or_assign(CLONE_ITEM_DISTURB, NotificationCloneDisturb::GetInstance());
134 }
135
~NotificationCloneManager()136 NotificationCloneManager::~NotificationCloneManager()
137 {
138 ANS_LOGI("Notification clone manager destory.");
139 }
140
LoadConfig(UniqueFd & fd,std::string & config)141 ErrCode NotificationCloneManager::LoadConfig(UniqueFd &fd, std::string& config)
142 {
143 ANS_LOGI("Load notification config.");
144 struct stat statBuf;
145 if (fstat(fd.Get(), &statBuf) < 0) {
146 ANS_LOGW("LoadConfig fstat fd fail %{public}d.", fd.Get());
147 return ANS_CLONE_ERROR;
148 }
149 int destFd = open(BACKUP_CONFIG_FILE_PATH, O_WRONLY | O_CREAT | O_TRUNC, S_IRUSR | S_IWUSR);
150 if (destFd < 0) {
151 ANS_LOGW("LoadConfig open file fail.");
152 return ANS_CLONE_ERROR;
153 }
154 if (sendfile(destFd, fd.Get(), nullptr, statBuf.st_size) < 0) {
155 ANS_LOGW("LoadConfig fd sendfile(size: %{public}d) to destFd fail.", static_cast<int>(statBuf.st_size));
156 close(destFd);
157 return ANS_CLONE_ERROR;
158 }
159 close(destFd);
160 std::ifstream fs(BACKUP_CONFIG_FILE_PATH);
161 if (!fs.is_open()) {
162 ANS_LOGW("Loading config file%{public}s is_open() failed!", BACKUP_CONFIG_FILE_PATH);
163 return ANS_CLONE_ERROR;
164 }
165 config.clear();
166 std::string line;
167 while (std::getline(fs, line)) {
168 config.append(line);
169 }
170 fs.close();
171 return ERR_OK;
172 }
173
SaveConfig(const std::string & config)174 ErrCode NotificationCloneManager::SaveConfig(const std::string& config)
175 {
176 ANS_LOGD("Save config file %{public}s", config.c_str());
177 RemoveBackUpFile();
178 FILE* fp = fopen(BACKUP_CONFIG_FILE_PATH, "w");
179 if (!fp) {
180 ANS_LOGW("Save config file: %{public}s, fopen() failed!", BACKUP_CONFIG_FILE_PATH);
181 return ANS_CLONE_ERROR;
182 }
183
184 int ret = fwrite(config.c_str(), 1, config.length(), fp);
185 if (ret != (int)config.length()) {
186 ANS_LOGW("Save config file: %{public}s, fwrite %{public}d failed!", BACKUP_CONFIG_FILE_PATH, ret);
187 }
188 (void)fflush(fp);
189 (void)fsync(fileno(fp));
190 (void)fclose(fp);
191 ANS_LOGI("Save config file %{public}zu", config.size());
192 return ERR_OK;
193 }
194
RemoveBackUpFile()195 void NotificationCloneManager::RemoveBackUpFile()
196 {
197 remove(BACKUP_CONFIG_FILE_PATH);
198 }
199
OnUserSwitch(int32_t userId)200 void NotificationCloneManager::OnUserSwitch(int32_t userId)
201 {
202 for (auto iter = cloneTemplates.begin(); iter != cloneTemplates.end(); ++iter) {
203 if (iter->second != nullptr) {
204 iter->second->OnUserSwitch(userId);
205 }
206 }
207 }
208
OnRestoreStart(EventFwk::Want want)209 void NotificationCloneManager::OnRestoreStart(EventFwk::Want want)
210 {
211 int32_t appIndex = want.GetIntParam("index", -1);
212 std::string bundleName = want.GetStringParam("bundleName");
213 int32_t userId = NotificationCloneUtil::GetActiveUserId();
214 if (appIndex == -1 || bundleName.empty()) {
215 ANS_LOGW("Invalid restore data %{public}d %{public}d %{public}s",
216 appIndex, userId, bundleName.c_str());
217 return;
218 }
219 int32_t uid = NotificationCloneUtil::GetBundleUid(bundleName, userId, appIndex);
220 for (auto iter = cloneTemplates.begin(); iter != cloneTemplates.end(); ++iter) {
221 if (iter->second != nullptr) {
222 iter->second->OnRestoreStart(bundleName, appIndex, userId, uid);
223 }
224 }
225 }
226 }
227 }
228