129 lines
3.5 KiB
PHP
129 lines
3.5 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\Cache\Traits;
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use Symfony\Component\Cache\Exception\InvalidArgumentException;
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/**
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* @author Nicolas Grekas <p@tchwork.com>
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*
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* @internal
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*/
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trait FilesystemCommonTrait
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{
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private $directory;
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private $tmp;
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private function init($namespace, $directory)
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{
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if (!isset($directory[0])) {
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$directory = sys_get_temp_dir().'/symfony-cache';
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} else {
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$directory = realpath($directory) ?: $directory;
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}
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if (isset($namespace[0])) {
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if (preg_match('#[^-+_.A-Za-z0-9]#', $namespace, $match)) {
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throw new InvalidArgumentException(sprintf('Namespace contains "%s" but only characters in [-+_.A-Za-z0-9] are allowed.', $match[0]));
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}
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$directory .= DIRECTORY_SEPARATOR.$namespace;
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}
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if (!file_exists($directory)) {
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@mkdir($directory, 0777, true);
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}
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$directory .= DIRECTORY_SEPARATOR;
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// On Windows the whole path is limited to 258 chars
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if ('\\' === DIRECTORY_SEPARATOR && strlen($directory) > 234) {
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throw new InvalidArgumentException(sprintf('Cache directory too long (%s)', $directory));
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}
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$this->directory = $directory;
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}
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/**
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* {@inheritdoc}
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*/
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protected function doClear($namespace)
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{
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$ok = true;
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foreach (new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator($this->directory, \FilesystemIterator::SKIP_DOTS)) as $file) {
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$ok = ($file->isDir() || @unlink($file) || !file_exists($file)) && $ok;
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}
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return $ok;
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}
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/**
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* {@inheritdoc}
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*/
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protected function doDelete(array $ids)
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{
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$ok = true;
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foreach ($ids as $id) {
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$file = $this->getFile($id);
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$ok = (!file_exists($file) || @unlink($file) || !file_exists($file)) && $ok;
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}
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return $ok;
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}
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private function write($file, $data, $expiresAt = null)
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{
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set_error_handler(__CLASS__.'::throwError');
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try {
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if (null === $this->tmp) {
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$this->tmp = $this->directory.uniqid('', true);
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}
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file_put_contents($this->tmp, $data);
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if (null !== $expiresAt) {
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touch($this->tmp, $expiresAt);
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}
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return rename($this->tmp, $file);
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} finally {
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restore_error_handler();
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}
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}
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private function getFile($id, $mkdir = false)
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{
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$hash = str_replace('/', '-', base64_encode(hash('sha256', static::class.$id, true)));
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$dir = $this->directory.strtoupper($hash[0].DIRECTORY_SEPARATOR.$hash[1].DIRECTORY_SEPARATOR);
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if ($mkdir && !file_exists($dir)) {
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@mkdir($dir, 0777, true);
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}
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return $dir.substr($hash, 2, 20);
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}
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/**
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* @internal
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*/
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public static function throwError($type, $message, $file, $line)
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{
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throw new \ErrorException($message, 0, $type, $file, $line);
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}
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public function __destruct()
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{
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if (method_exists(parent::class, '__destruct')) {
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parent::__destruct();
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}
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if (null !== $this->tmp && file_exists($this->tmp)) {
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unlink($this->tmp);
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}
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}
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}
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