1 /*
2 * Copyright (c) 2022-2023 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 "include/util.h"
17
18 #include <string>
19
20 #include <sys/prctl.h>
21 #include <sys/stat.h>
22 #include <sys/syscall.h>
23 #include <unistd.h>
24
25 #include "securec.h"
26
27 #include "devicestatus_define.h"
28 #include "utility.h"
29
30 namespace OHOS {
31 namespace Msdp {
32 namespace DeviceStatus {
33 namespace {
34 constexpr ::OHOS::HiviewDFX::HiLogLabel LABEL { LOG_CORE, MSDP_DOMAIN_ID, "Util" };
35 constexpr size_t BUF_TID_SIZE { 10 };
36 constexpr size_t PROGRAM_NAME_SIZE { 256 };
37 constexpr size_t BUF_CMD_SIZE { 512 };
38 constexpr uint32_t BASE_YEAR { 1900 };
39 constexpr uint32_t BASE_MON { 1 };
40 constexpr uint32_t MS_NS { 1000000 };
41 constexpr int32_t FILE_SIZE_MAX { 0x5000 };
42 constexpr size_t SHORT_KEY_LENGTH { 20 };
43 constexpr size_t PLAINTEXT_LENGTH { 4 };
44 const std::string SVG_PATH { "/system/etc/device_status/drag_icon/" };
45 } // namespace
46
GetPid()47 int32_t GetPid()
48 {
49 return static_cast<int32_t>(getpid());
50 }
51
GetThisThreadIdOfString()52 static std::string GetThisThreadIdOfString()
53 {
54 thread_local std::string threadLocalId;
55 if (threadLocalId.empty()) {
56 long tid = syscall(SYS_gettid);
57 char buf[BUF_TID_SIZE] = { 0 };
58 const int32_t ret = sprintf_s(buf, BUF_TID_SIZE, "%06d", tid);
59 if (ret < 0) {
60 FI_HILOGE("Call sprintf_s failed, ret:%{public}d", ret);
61 return threadLocalId;
62 }
63 buf[BUF_TID_SIZE - 1] = '\0';
64 threadLocalId = buf;
65 }
66 return threadLocalId;
67 }
68
GetThisThreadId()69 uint64_t GetThisThreadId()
70 {
71 std::string threadId = GetThisThreadIdOfString();
72 uint64_t tid = std::stoull(threadId);
73 return tid;
74 }
75
GetMillisTime()76 int64_t GetMillisTime()
77 {
78 auto timeNow = std::chrono::time_point_cast<std::chrono::milliseconds>(std::chrono::steady_clock::now());
79 auto tmp = std::chrono::duration_cast<std::chrono::milliseconds>(timeNow.time_since_epoch());
80 return tmp.count();
81 }
82
GetTimeStamp(std::string & startTime)83 void GetTimeStamp(std::string &startTime)
84 {
85 timespec curTime;
86 clock_gettime(CLOCK_REALTIME, &curTime);
87 struct tm *timeinfo = localtime(&(curTime.tv_sec));
88 CHKPV(timeinfo);
89 startTime.append(std::to_string(timeinfo->tm_year + BASE_YEAR)).append("-")
90 .append(std::to_string(timeinfo->tm_mon + BASE_MON)).append("-").append(std::to_string(timeinfo->tm_mday))
91 .append(" ").append(std::to_string(timeinfo->tm_hour)).append(":").append(std::to_string(timeinfo->tm_min))
92 .append(":").append(std::to_string(timeinfo->tm_sec)).append(".")
93 .append(std::to_string(curTime.tv_nsec / MS_NS));
94 }
95
SetThreadName(const std::string & name)96 void SetThreadName(const std::string &name)
97 {
98 prctl(PR_SET_NAME, name.c_str());
99 }
100
StringToken(std::string & strs,const std::string & sep,std::string & token)101 static size_t StringToken(std::string &strs, const std::string &sep, std::string &token)
102 {
103 token = "";
104 if (strs.empty()) {
105 return strs.npos;
106 }
107 size_t seat = strs.npos;
108 size_t temp = 0;
109 for (auto &item : sep) {
110 temp = strs.find(item);
111 if (strs.npos != temp) {
112 seat = (std::min)(seat, temp);
113 }
114 }
115 if (strs.npos != seat) {
116 token = strs.substr(0, seat);
117 if (strs.npos != seat + 1) {
118 strs = strs.substr(seat + 1, strs.npos);
119 }
120 if (seat == 0) {
121 return StringToken(strs, sep, token);
122 }
123 } else {
124 token = strs;
125 strs = "";
126 }
127 return token.size();
128 }
129
StringSplit(const std::string & str,const std::string & sep,std::vector<std::string> & vecList)130 size_t StringSplit(const std::string &str, const std::string &sep, std::vector<std::string> &vecList)
131 {
132 size_t size = 0;
133 auto strs = str;
134 std::string token;
135 while (str.npos != (size = StringToken(strs, sep, token))) {
136 vecList.push_back(token);
137 }
138 return vecList.size();
139 }
140
StringPrintf(const char * format,...)141 std::string StringPrintf(const char *format, ...)
142 {
143 char space[1024] { 0 };
144
145 va_list ap;
146 va_start(ap, format);
147 std::string result;
148 int32_t ret = vsnprintf_s(space, sizeof(space), sizeof(space) - 1, format, ap);
149 if (ret >= RET_OK && static_cast<size_t>(ret) < sizeof(space)) {
150 result = space;
151 } else {
152 FI_HILOGE("The buffer is overflow");
153 }
154 va_end(ap);
155 return result;
156 }
157
GetAnonyString(const std::string & value)158 std::string GetAnonyString(const std::string &value)
159 {
160 if (value.empty()) {
161 return "empty";
162 }
163 std::string anonyStr = "******";
164 std::string str;
165 size_t strLen = value.length();
166 if (strLen <= SHORT_KEY_LENGTH) {
167 str += value[0];
168 str += anonyStr;
169 str += value[strLen - 1];
170 } else {
171 str.append(value, 0, PLAINTEXT_LENGTH);
172 str += anonyStr;
173 str.append(value, strLen - PLAINTEXT_LENGTH, PLAINTEXT_LENGTH);
174 }
175 return str;
176 }
177
GetFileName(const std::string & path)178 static std::string GetFileName(const std::string &path)
179 {
180 size_t nPos = path.find_last_of('/');
181 if (path.npos == nPos) {
182 nPos = path.find_last_of('\\');
183 }
184 if (path.npos == nPos) {
185 return path;
186 }
187 return path.substr(nPos + 1, path.npos);
188 }
189
GetProgramName()190 const char* GetProgramName()
191 {
192 static char programName[PROGRAM_NAME_SIZE] = { 0 };
193 if (programName[0] != '\0') {
194 return programName;
195 }
196
197 char buf[BUF_CMD_SIZE] = { 0 };
198 int32_t ret = sprintf_s(buf, BUF_CMD_SIZE, "/proc/%d/cmdline", static_cast<int32_t>(getpid()));
199 if (ret == -1) {
200 FI_HILOGE("GetProcessInfo sprintf_s cmdline error");
201 return "";
202 }
203 FILE *fp = fopen(buf, "rb");
204 if (fp == nullptr) {
205 FI_HILOGE("The fp is nullptr, filename:%{public}s", buf);
206 return "";
207 }
208 static constexpr size_t bufLineSize = 512;
209 char bufLine[bufLineSize] = { 0 };
210 if ((fgets(bufLine, bufLineSize, fp) == nullptr)) {
211 FI_HILOGE("fgets failed");
212 if (fclose(fp) != 0) {
213 FI_HILOGW("Close file failed");
214 }
215 fp = nullptr;
216 return "";
217 }
218 if (fclose(fp) != 0) {
219 FI_HILOGW("Close file:%{public}s failed", buf);
220 }
221 fp = nullptr;
222
223 std::string tempName(bufLine);
224 tempName = GetFileName(tempName);
225 if (tempName.empty()) {
226 FI_HILOGE("tempName is empty");
227 return "";
228 }
229 size_t copySize = std::min(tempName.size(), PROGRAM_NAME_SIZE - 1);
230 if (copySize == 0) {
231 FI_HILOGE("The copySize is 0");
232 return "";
233 }
234 errno_t result = memcpy_s(programName, PROGRAM_NAME_SIZE, tempName.c_str(), copySize);
235 if (result != EOK) {
236 FI_HILOGE("memcpy_s failed");
237 return "";
238 }
239 FI_HILOGI("Get program name success, programName:%{public}s", programName);
240
241 return programName;
242 }
243
CheckFileExtendName(const std::string & filePath,const std::string & checkExtension)244 bool CheckFileExtendName(const std::string &filePath, const std::string &checkExtension)
245 {
246 std::string::size_type pos = filePath.find_last_of('.');
247 if (pos == std::string::npos) {
248 FI_HILOGE("File is not found extension");
249 return false;
250 }
251 return (filePath.substr(pos + 1, filePath.npos) == checkExtension);
252 }
253
IsValidPath(const std::string & rootDir,const std::string & filePath)254 bool IsValidPath(const std::string &rootDir, const std::string &filePath)
255 {
256 return (filePath.compare(0, rootDir.size(), rootDir) == 0);
257 }
258
IsValidSvgPath(const std::string & filePath)259 bool IsValidSvgPath(const std::string &filePath)
260 {
261 return IsValidPath(SVG_PATH, filePath);
262 }
263
IsValidSvgFile(const std::string & filePath)264 bool IsValidSvgFile(const std::string &filePath)
265 {
266 CALL_DEBUG_ENTER;
267 if (filePath.empty()) {
268 FI_HILOGE("FilePath is empty");
269 return false;
270 }
271 char realPath[PATH_MAX] = { 0 };
272 if (realpath(filePath.c_str(), realPath) == nullptr) {
273 FI_HILOGE("Realpath return nullptr, realPath:%{public}s", realPath);
274 return false;
275 }
276 if (!IsValidSvgPath(realPath)) {
277 FI_HILOGE("File path invalid");
278 return false;
279 }
280 if (!Utility::DoesFileExist(realPath)) {
281 FI_HILOGE("File not exist");
282 return false;
283 }
284 if (!CheckFileExtendName(realPath, "svg")) {
285 FI_HILOGE("Unable to parse files other than svg format");
286 return false;
287 }
288 int32_t fileSize = Utility::GetFileSize(realPath);
289 if ((fileSize <= 0) || (fileSize > FILE_SIZE_MAX)) {
290 FI_HILOGE("File size out of read range");
291 return false;
292 }
293 return true;
294 }
295
IsNum(const std::string & str)296 bool IsNum(const std::string &str)
297 {
298 std::istringstream sin(str);
299 double num = 0.0;
300 return (sin >> num) && sin.eof();
301 }
302 } // namespace DeviceStatus
303 } // namespace Msdp
304 } // namespace OHOS