143 lines
4.4 KiB
PHP
143 lines
4.4 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\CacheItem;
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use Symfony\Component\Cache\Exception\InvalidArgumentException;
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/**
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* @author Titouan Galopin <galopintitouan@gmail.com>
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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 PhpArrayTrait
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{
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use ProxyTrait;
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private $file;
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private $values;
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private $zendDetectUnicode;
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/**
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* Store an array of cached values.
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*
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* @param array $values The cached values
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*/
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public function warmUp(array $values)
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{
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if (file_exists($this->file)) {
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if (!is_file($this->file)) {
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throw new InvalidArgumentException(sprintf('Cache path exists and is not a file: %s.', $this->file));
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}
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if (!is_writable($this->file)) {
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throw new InvalidArgumentException(sprintf('Cache file is not writable: %s.', $this->file));
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}
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} else {
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$directory = dirname($this->file);
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if (!is_dir($directory) && !@mkdir($directory, 0777, true)) {
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throw new InvalidArgumentException(sprintf('Cache directory does not exist and cannot be created: %s.', $directory));
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}
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if (!is_writable($directory)) {
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throw new InvalidArgumentException(sprintf('Cache directory is not writable: %s.', $directory));
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}
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}
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$dump = <<<'EOF'
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<?php
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// This file has been auto-generated by the Symfony Cache Component.
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return array(
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EOF;
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foreach ($values as $key => $value) {
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CacheItem::validateKey(is_int($key) ? (string) $key : $key);
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if (null === $value || is_object($value)) {
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try {
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$value = serialize($value);
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} catch (\Exception $e) {
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throw new InvalidArgumentException(sprintf('Cache key "%s" has non-serializable %s value.', $key, get_class($value)), 0, $e);
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}
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} elseif (is_array($value)) {
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try {
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$serialized = serialize($value);
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$unserialized = unserialize($serialized);
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} catch (\Exception $e) {
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throw new InvalidArgumentException(sprintf('Cache key "%s" has non-serializable array value.', $key), 0, $e);
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}
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// Store arrays serialized if they contain any objects or references
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if ($unserialized !== $value || (false !== strpos($serialized, ';R:') && preg_match('/;R:[1-9]/', $serialized))) {
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$value = $serialized;
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}
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} elseif (is_string($value)) {
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// Serialize strings if they could be confused with serialized objects or arrays
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if ('N;' === $value || (isset($value[2]) && ':' === $value[1])) {
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$value = serialize($value);
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}
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} elseif (!is_scalar($value)) {
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throw new InvalidArgumentException(sprintf('Cache key "%s" has non-serializable %s value.', $key, gettype($value)));
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}
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$dump .= var_export($key, true).' => '.var_export($value, true).",\n";
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}
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$dump .= "\n);\n";
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$dump = str_replace("' . \"\\0\" . '", "\0", $dump);
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$tmpFile = uniqid($this->file, true);
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file_put_contents($tmpFile, $dump);
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@chmod($tmpFile, 0666 & ~umask());
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unset($serialized, $unserialized, $value, $dump);
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@rename($tmpFile, $this->file);
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$this->initialize();
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}
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/**
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* {@inheritdoc}
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*/
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public function clear()
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{
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$this->values = array();
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$cleared = @unlink($this->file) || !file_exists($this->file);
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return $this->pool->clear() && $cleared;
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}
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/**
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* Load the cache file.
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*/
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private function initialize()
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{
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if ($this->zendDetectUnicode) {
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$zmb = ini_set('zend.detect_unicode', 0);
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}
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try {
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$this->values = file_exists($this->file) ? (include $this->file ?: array()) : array();
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} finally {
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if ($this->zendDetectUnicode) {
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ini_set('zend.detect_unicode', $zmb);
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}
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}
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}
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}
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