312 lines
8.9 KiB
PHP
312 lines
8.9 KiB
PHP
<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\HttpKernel\Profiler;
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/**
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* Storage for profiler using files.
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*
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* @author Alexandre Salomé <alexandre.salome@gmail.com>
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*/
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class FileProfilerStorage implements ProfilerStorageInterface
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{
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/**
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* Folder where profiler data are stored.
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*
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* @var string
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*/
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private $folder;
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/**
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* Constructs the file storage using a "dsn-like" path.
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*
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* Example : "file:/path/to/the/storage/folder"
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*
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* @throws \RuntimeException
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*/
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public function __construct(string $dsn)
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{
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if (!str_starts_with($dsn, 'file:')) {
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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".', $dsn));
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}
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$this->folder = substr($dsn, 5);
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if (!is_dir($this->folder) && false === @mkdir($this->folder, 0777, true) && !is_dir($this->folder)) {
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throw new \RuntimeException(sprintf('Unable to create the storage directory (%s).', $this->folder));
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}
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}
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/**
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* {@inheritdoc}
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*/
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public function find(?string $ip, ?string $url, ?int $limit, ?string $method, int $start = null, int $end = null, string $statusCode = null): array
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{
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$file = $this->getIndexFilename();
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if (!file_exists($file)) {
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return [];
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}
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$file = fopen($file, 'r');
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fseek($file, 0, \SEEK_END);
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$result = [];
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while (\count($result) < $limit && $line = $this->readLineFromFile($file)) {
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$values = str_getcsv($line);
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[$csvToken, $csvIp, $csvMethod, $csvUrl, $csvTime, $csvParent, $csvStatusCode] = $values;
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$csvTime = (int) $csvTime;
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if ($ip && !str_contains($csvIp, $ip) || $url && !str_contains($csvUrl, $url) || $method && !str_contains($csvMethod, $method) || $statusCode && !str_contains($csvStatusCode, $statusCode)) {
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continue;
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}
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if (!empty($start) && $csvTime < $start) {
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continue;
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}
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if (!empty($end) && $csvTime > $end) {
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continue;
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}
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$result[$csvToken] = [
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'token' => $csvToken,
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'ip' => $csvIp,
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'method' => $csvMethod,
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'url' => $csvUrl,
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'time' => $csvTime,
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'parent' => $csvParent,
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'status_code' => $csvStatusCode,
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];
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}
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fclose($file);
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return array_values($result);
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}
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/**
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* {@inheritdoc}
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*/
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public function purge()
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{
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$flags = \FilesystemIterator::SKIP_DOTS;
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$iterator = new \RecursiveDirectoryIterator($this->folder, $flags);
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$iterator = new \RecursiveIteratorIterator($iterator, \RecursiveIteratorIterator::CHILD_FIRST);
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foreach ($iterator as $file) {
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if (is_file($file)) {
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unlink($file);
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} else {
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rmdir($file);
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}
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}
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}
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/**
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* {@inheritdoc}
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*/
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public function read(string $token): ?Profile
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{
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if (!$token || !file_exists($file = $this->getFilename($token))) {
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return null;
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}
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if (\function_exists('gzcompress')) {
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$file = 'compress.zlib://'.$file;
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}
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if (!$data = unserialize(file_get_contents($file))) {
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return null;
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}
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return $this->createProfileFromData($token, $data);
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}
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/**
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* {@inheritdoc}
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*
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* @throws \RuntimeException
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*/
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public function write(Profile $profile): bool
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{
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$file = $this->getFilename($profile->getToken());
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$profileIndexed = is_file($file);
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if (!$profileIndexed) {
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// Create directory
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$dir = \dirname($file);
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if (!is_dir($dir) && false === @mkdir($dir, 0777, true) && !is_dir($dir)) {
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throw new \RuntimeException(sprintf('Unable to create the storage directory (%s).', $dir));
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}
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}
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$profileToken = $profile->getToken();
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// when there are errors in sub-requests, the parent and/or children tokens
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// may equal the profile token, resulting in infinite loops
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$parentToken = $profile->getParentToken() !== $profileToken ? $profile->getParentToken() : null;
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$childrenToken = array_filter(array_map(function (Profile $p) use ($profileToken) {
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return $profileToken !== $p->getToken() ? $p->getToken() : null;
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}, $profile->getChildren()));
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// Store profile
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$data = [
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'token' => $profileToken,
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'parent' => $parentToken,
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'children' => $childrenToken,
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'data' => $profile->getCollectors(),
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'ip' => $profile->getIp(),
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'method' => $profile->getMethod(),
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'url' => $profile->getUrl(),
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'time' => $profile->getTime(),
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'status_code' => $profile->getStatusCode(),
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];
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$context = stream_context_create();
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if (\function_exists('gzcompress')) {
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$file = 'compress.zlib://'.$file;
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stream_context_set_option($context, 'zlib', 'level', 3);
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}
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if (false === file_put_contents($file, serialize($data), 0, $context)) {
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return false;
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}
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if (!$profileIndexed) {
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// Add to index
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if (false === $file = fopen($this->getIndexFilename(), 'a')) {
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return false;
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}
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fputcsv($file, [
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$profile->getToken(),
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$profile->getIp(),
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$profile->getMethod(),
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$profile->getUrl(),
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$profile->getTime(),
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$profile->getParentToken(),
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$profile->getStatusCode(),
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]);
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fclose($file);
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}
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return true;
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}
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/**
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* Gets filename to store data, associated to the token.
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*
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* @return string
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*/
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protected function getFilename(string $token)
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{
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// Uses 4 last characters, because first are mostly the same.
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$folderA = substr($token, -2, 2);
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$folderB = substr($token, -4, 2);
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return $this->folder.'/'.$folderA.'/'.$folderB.'/'.$token;
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}
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/**
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* Gets the index filename.
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*
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* @return string
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*/
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protected function getIndexFilename()
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{
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return $this->folder.'/index.csv';
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}
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/**
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* Reads a line in the file, backward.
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*
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* This function automatically skips the empty lines and do not include the line return in result value.
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*
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* @param resource $file The file resource, with the pointer placed at the end of the line to read
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*
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* @return mixed
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*/
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protected function readLineFromFile($file)
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{
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$line = '';
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$position = ftell($file);
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if (0 === $position) {
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return null;
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}
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while (true) {
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$chunkSize = min($position, 1024);
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$position -= $chunkSize;
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fseek($file, $position);
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if (0 === $chunkSize) {
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// bof reached
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break;
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}
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$buffer = fread($file, $chunkSize);
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if (false === ($upTo = strrpos($buffer, "\n"))) {
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$line = $buffer.$line;
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continue;
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}
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$position += $upTo;
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$line = substr($buffer, $upTo + 1).$line;
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fseek($file, max(0, $position), \SEEK_SET);
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if ('' !== $line) {
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break;
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}
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}
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return '' === $line ? null : $line;
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}
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protected function createProfileFromData(string $token, array $data, Profile $parent = null)
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{
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$profile = new Profile($token);
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$profile->setIp($data['ip']);
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$profile->setMethod($data['method']);
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$profile->setUrl($data['url']);
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$profile->setTime($data['time']);
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$profile->setStatusCode($data['status_code']);
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$profile->setCollectors($data['data']);
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if (!$parent && $data['parent']) {
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$parent = $this->read($data['parent']);
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}
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if ($parent) {
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$profile->setParent($parent);
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}
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foreach ($data['children'] as $token) {
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if (!$token || !file_exists($file = $this->getFilename($token))) {
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continue;
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}
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if (\function_exists('gzcompress')) {
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$file = 'compress.zlib://'.$file;
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}
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if (!$childData = unserialize(file_get_contents($file))) {
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continue;
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}
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$profile->addChild($this->createProfileFromData($token, $childData, $profile));
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}
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return $profile;
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}
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}
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