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<?php
declare(strict_types=1);
namespace Mautic\CoreBundle\Cache;
use Symfony\Component\HttpKernel\CacheWarmer\CacheWarmerInterface;
class MiddlewareCacheWarmer implements CacheWarmerInterface
{
private ?string $cacheFile = null;
/**
* @var \SplPriorityQueue|\ReflectionClass[]
*/
private \SplPriorityQueue $specs;
public function __construct(
private string $env
) {
$this->specs = new \SplPriorityQueue();
}
/**
* @inerhitDoc
*/
public function warmUp(string $cacheDirectory)
{
$this->cacheFile = sprintf('%s/middlewares.cache.php', $cacheDirectory);
$this->createCacheFile($cacheDirectory);
return [];
}
public function isOptional(): bool
{
return false;
}
private function createCacheFile($cacheDirectory): void
{
$middlewarsDir = __DIR__.'/../../../middlewares';
$this->loadFromDirectory($middlewarsDir);
$envDir = $middlewarsDir.'/'.ucfirst($this->env);
if (file_exists($envDir)) {
$this->loadFromDirectory($envDir, $this->env);
}
if (file_exists($this->cacheFile)) {
unlink($this->cacheFile);
}
if (false === file_exists($cacheDirectory)) {
mkdir($cacheDirectory, 0777, true);
}
$data = [];
$this->specs->setExtractFlags(\SplPriorityQueue::EXTR_DATA);
/** @var \ReflectionClass $middleware */
foreach ($this->specs as $middleware) {
$data[] = $middleware->getName();
}
$content = sprintf('<?php return %s;', var_export($data, true));
file_put_contents($this->cacheFile, $content);
}
private function loadFromDirectory(string $directory, ?string $env = null): void
{
$glob = glob($directory.'/*Middleware.php');
if (!empty($glob)) {
$this->addMiddlewares($glob, $env);
}
}
private function addMiddlewares(array $middlewares, ?string $env = null): void
{
$prefix = 'Mautic\\Middleware\\';
if ($env) {
$prefix .= ucfirst($env).'\\';
}
foreach ($middlewares as $middleware) {
$this->push($prefix.basename(substr($middleware, 0, -4)));
}
}
private function push(string $middlewareClass): void
{
try {
$reflection = new \ReflectionClass($middlewareClass);
$priority = $reflection->getConstant('PRIORITY');
$this->specs->insert($reflection, $priority);
} catch (\ReflectionException) {
/* If there's an error getting the kernel class, it's
* an invalid middleware. If it's invalid, don't push
* it to the stack
*/
}
}
}
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