Verzeichnisstruktur phpBB-3.3.15
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- 28.08.2024
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FileProfilerStorage.php
001 <?php
002
003 /*
004 * This file is part of the Symfony package.
005 *
006 * (c) Fabien Potencier <fabien@symfony.com>
007 *
008 * For the full copyright and license information, please view the LICENSE
009 * file that was distributed with this source code.
010 */
011
012 namespace Symfony\Component\HttpKernel\Profiler;
013
014 /**
015 * Storage for profiler using files.
016 *
017 * @author Alexandre Salomé <alexandre.salome@gmail.com>
018 */
019 class FileProfilerStorage implements ProfilerStorageInterface
020 {
021 /**
022 * Folder where profiler data are stored.
023 *
024 * @var string
025 */
026 private $folder;
027
028 /**
029 * Constructs the file storage using a "dsn-like" path.
030 *
031 * Example : "file:/path/to/the/storage/folder"
032 *
033 * @param string $dsn The DSN
034 *
035 * @throws \RuntimeException
036 */
037 public function __construct($dsn)
038 {
039 if (0 !== strpos($dsn, 'file:')) {
040 throw new \RuntimeException(sprintf('Please check your configuration. You are trying to use FileStorage with an invalid dsn "%s". The expected format is "file:/path/to/the/storage/folder".', $dsn));
041 }
042 $this->folder = substr($dsn, 5);
043
044 if (!is_dir($this->folder) && false === @mkdir($this->folder, 0777, true) && !is_dir($this->folder)) {
045 throw new \RuntimeException(sprintf('Unable to create the storage directory (%s).', $this->folder));
046 }
047 }
048
049 /**
050 * {@inheritdoc}
051 */
052 public function find($ip, $url, $limit, $method, $start = null, $end = null, $statusCode = null)
053 {
054 $file = $this->getIndexFilename();
055
056 if (!file_exists($file)) {
057 return [];
058 }
059
060 $file = fopen($file, 'r');
061 fseek($file, 0, \SEEK_END);
062
063 $result = [];
064 while (\count($result) < $limit && $line = $this->readLineFromFile($file)) {
065 $values = str_getcsv($line);
066 list($csvToken, $csvIp, $csvMethod, $csvUrl, $csvTime, $csvParent, $csvStatusCode) = $values;
067 $csvTime = (int) $csvTime;
068
069 if ($ip && false === strpos($csvIp, $ip) || $url && false === strpos($csvUrl, $url) || $method && false === strpos($csvMethod, $method) || $statusCode && false === strpos($csvStatusCode, $statusCode)) {
070 continue;
071 }
072
073 if (!empty($start) && $csvTime < $start) {
074 continue;
075 }
076
077 if (!empty($end) && $csvTime > $end) {
078 continue;
079 }
080
081 $result[$csvToken] = [
082 'token' => $csvToken,
083 'ip' => $csvIp,
084 'method' => $csvMethod,
085 'url' => $csvUrl,
086 'time' => $csvTime,
087 'parent' => $csvParent,
088 'status_code' => $csvStatusCode,
089 ];
090 }
091
092 fclose($file);
093
094 return array_values($result);
095 }
096
097 /**
098 * {@inheritdoc}
099 */
100 public function purge()
101 {
102 $flags = \FilesystemIterator::SKIP_DOTS;
103 $iterator = new \RecursiveDirectoryIterator($this->folder, $flags);
104 $iterator = new \RecursiveIteratorIterator($iterator, \RecursiveIteratorIterator::CHILD_FIRST);
105
106 foreach ($iterator as $file) {
107 if (is_file($file)) {
108 unlink($file);
109 } else {
110 rmdir($file);
111 }
112 }
113 }
114
115 /**
116 * {@inheritdoc}
117 */
118 public function read($token)
119 {
120 if (!$token || !file_exists($file = $this->getFilename($token))) {
121 return null;
122 }
123
124 return $this->createProfileFromData($token, unserialize(file_get_contents($file)));
125 }
126
127 /**
128 * {@inheritdoc}
129 *
130 * @throws \RuntimeException
131 */
132 public function write(Profile $profile)
133 {
134 $file = $this->getFilename($profile->getToken());
135
136 $profileIndexed = is_file($file);
137 if (!$profileIndexed) {
138 // Create directory
139 $dir = \dirname($file);
140 if (!is_dir($dir) && false === @mkdir($dir, 0777, true) && !is_dir($dir)) {
141 throw new \RuntimeException(sprintf('Unable to create the storage directory (%s).', $dir));
142 }
143 }
144
145 $profileToken = $profile->getToken();
146 // when there are errors in sub-requests, the parent and/or children tokens
147 // may equal the profile token, resulting in infinite loops
148 $parentToken = $profile->getParentToken() !== $profileToken ? $profile->getParentToken() : null;
149 $childrenToken = array_filter(array_map(function ($p) use ($profileToken) {
150 return $profileToken !== $p->getToken() ? $p->getToken() : null;
151 }, $profile->getChildren()));
152
153 // Store profile
154 $data = [
155 'token' => $profileToken,
156 'parent' => $parentToken,
157 'children' => $childrenToken,
158 'data' => $profile->getCollectors(),
159 'ip' => $profile->getIp(),
160 'method' => $profile->getMethod(),
161 'url' => $profile->getUrl(),
162 'time' => $profile->getTime(),
163 'status_code' => $profile->getStatusCode(),
164 ];
165
166 if (false === file_put_contents($file, serialize($data))) {
167 return false;
168 }
169
170 if (!$profileIndexed) {
171 // Add to index
172 if (false === $file = fopen($this->getIndexFilename(), 'a')) {
173 return false;
174 }
175
176 fputcsv($file, [
177 $profile->getToken(),
178 $profile->getIp(),
179 $profile->getMethod(),
180 $profile->getUrl(),
181 $profile->getTime(),
182 $profile->getParentToken(),
183 $profile->getStatusCode(),
184 ]);
185 fclose($file);
186 }
187
188 return true;
189 }
190
191 /**
192 * Gets filename to store data, associated to the token.
193 *
194 * @param string $token
195 *
196 * @return string The profile filename
197 */
198 protected function getFilename($token)
199 {
200 // Uses 4 last characters, because first are mostly the same.
201 $folderA = substr($token, -2, 2);
202 $folderB = substr($token, -4, 2);
203
204 return $this->folder.'/'.$folderA.'/'.$folderB.'/'.$token;
205 }
206
207 /**
208 * Gets the index filename.
209 *
210 * @return string The index filename
211 */
212 protected function getIndexFilename()
213 {
214 return $this->folder.'/index.csv';
215 }
216
217 /**
218 * Reads a line in the file, backward.
219 *
220 * This function automatically skips the empty lines and do not include the line return in result value.
221 *
222 * @param resource $file The file resource, with the pointer placed at the end of the line to read
223 *
224 * @return mixed A string representing the line or null if beginning of file is reached
225 */
226 protected function readLineFromFile($file)
227 {
228 $line = '';
229 $position = ftell($file);
230
231 if (0 === $position) {
232 return null;
233 }
234
235 while (true) {
236 $chunkSize = min($position, 1024);
237 $position -= $chunkSize;
238 fseek($file, $position);
239
240 if (0 === $chunkSize) {
241 // bof reached
242 break;
243 }
244
245 $buffer = fread($file, $chunkSize);
246
247 if (false === ($upTo = strrpos($buffer, "\n"))) {
248 $line = $buffer.$line;
249 continue;
250 }
251
252 $position += $upTo;
253 $line = substr($buffer, $upTo + 1).$line;
254 fseek($file, max(0, $position), \SEEK_SET);
255
256 if ('' !== $line) {
257 break;
258 }
259 }
260
261 return '' === $line ? null : $line;
262 }
263
264 protected function createProfileFromData($token, $data, $parent = null)
265 {
266 $profile = new Profile($token);
267 $profile->setIp($data['ip']);
268 $profile->setMethod($data['method']);
269 $profile->setUrl($data['url']);
270 $profile->setTime($data['time']);
271 $profile->setStatusCode($data['status_code']);
272 $profile->setCollectors($data['data']);
273
274 if (!$parent && $data['parent']) {
275 $parent = $this->read($data['parent']);
276 }
277
278 if ($parent) {
279 $profile->setParent($parent);
280 }
281
282 foreach ($data['children'] as $token) {
283 if (!$token || !file_exists($file = $this->getFilename($token))) {
284 continue;
285 }
286
287 $profile->addChild($this->createProfileFromData($token, unserialize(file_get_contents($file)), $profile));
288 }
289
290 return $profile;
291 }
292 }
293