<?php
namespace MailPoet\Doctrine;
if (!defined('ABSPATH')) exit;
use MailPoetVendor\Doctrine\Common\Cache\CacheProvider;
use MailPoetVendor\Doctrine\ORM\Mapping\ClassMetadata as DoctrineClassMetadata;
use MailPoetVendor\Symfony\Component\Validator\Mapping\ClassMetadata as ValidatorClassMetadata;
use ReflectionClass;
use ReflectionException;
// Simple filesystem-based cache storage for Doctrine Metadata.
//
// Needed because Doctrine's FilesystemCache doesn't work read-only (when metadata dumped)
// and it calls realpath() that could fail on some hostings due to filesystem permissions.
class MetadataCache extends CacheProvider {
/** @var bool */
private $isDevMode;
/** @var string */
private $directory;
public function __construct(
$dir,
$isReadOnly
) {
$this->isDevMode = defined('WP_DEBUG') && WP_DEBUG && !$isReadOnly;
$this->directory = rtrim($dir, '/\\');
if (!file_exists($this->directory)) {
mkdir($this->directory);
}
}
protected function doFetch($id) {
if (!$this->doContains($id)) {
return false;
}
return unserialize((string)file_get_contents($this->getFilename($id)));
}
protected function doContains($id) {
$filename = $this->getFilename($id);
$fileExists = file_exists($filename);
// in dev mode invalidate cache if source file has changed
if ($fileExists && $this->isDevMode) {
$classMetadata = unserialize((string)file_get_contents($filename));
assert($classMetadata instanceof DoctrineClassMetadata || $classMetadata instanceof ValidatorClassMetadata);
if (!class_exists($classMetadata->name) && !interface_exists($classMetadata->name)) {
return false;
}
try {
$reflection = new ReflectionClass($classMetadata->name);
} catch (ReflectionException $e) {
return false;
}
clearstatcache();
return filemtime((string)$filename) >= filemtime((string)$reflection->getFileName());
}
return $fileExists;
}
protected function doSave($id, $data, $lifeTime = 0) {
$filename = $this->getFilename($id);
$result = @file_put_contents($filename, serialize($data));
if ($result === false) {
throw new \RuntimeException("Error while writing to '$filename'");
}
return true;
}
protected function doDelete($id) {
@unlink($this->getFilename($id));
return true;
}
protected function doFlush() {
$directoryContent = glob($this->directory . DIRECTORY_SEPARATOR . '*');
if ($directoryContent === false) {
return false;
}
foreach ($directoryContent as $filename) {
if (is_file($filename)) {
@unlink($filename);
}
}
return true;
}
protected function doGetStats() {
return null;
}
private function getFilename($id) {
return $this->directory . DIRECTORY_SEPARATOR . md5($id);
}
}