chore: complete update
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181
src/Framework/Http/HttpMiddlewareChain.php
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181
src/Framework/Http/HttpMiddlewareChain.php
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<?php
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namespace App\Framework\Http;
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use App\Framework\DI\Container;
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use App\Framework\Logging\DefaultLogger;
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use App\Framework\Logging\Logger;
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use Closure;
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final readonly class HttpMiddlewareChain implements HttpMiddlewareNext
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{
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private MiddlewareInvoker $invoker;
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private DefaultLogger $logger;
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private RequestStateManager $stateManager;
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public function __construct(
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private array $middlewares,
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private Closure $fallbackHandler,
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private Container $container
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) {
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$this->invoker = new MiddlewareInvoker($this->container);
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$this->logger = $this->container->get(Logger::class);
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}
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public function handle(Request $request): Response
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{
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// Kontext mit dem Request erstellen
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$context = new MiddlewareContext($request);
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$this->stateManager = new MiddlewareStateManager()->forRequest($request);
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// Middleware-Stack durchlaufen
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$resultContext = $this->processMiddlewareStack($context, 0);
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// Am Ende die Response aus dem Kontext zurückgeben
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if ($resultContext->hasResponse()) {
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return $resultContext->response;
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}
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// Warnung über fehlende Response
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$this->logger->warning('Keine Response nach Middleware-Chain - verwende Fallback-Handler', [
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'uri' => $resultContext->request->path,
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'method' => $resultContext->request->method->value,
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'middleware_count' => count($this->middlewares),
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]);
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// Fallback-Handler aufrufen
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$response = ($this->fallbackHandler)($resultContext->request);
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if (!$response instanceof Response) {
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throw new \RuntimeException(sprintf(
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'Fallback-Handler hat keine Response zurückgegeben, sondern %s',
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is_object($response) ? get_class($response) : gettype($response)
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));
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}
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return $response;
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}
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private function processMiddlewareStack(MiddlewareContext $context, int $index): MiddlewareContext
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{
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// Wenn das Ende der Middleware-Kette erreicht ist
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if ($index >= count($this->middlewares)) {
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$this->logDebug("Ende der Middleware-Kette erreicht", $context, $index);
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return $context;
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}
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$middleware = $this->middlewares[$index];
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$middlewareName = $this->getMiddlewareName($middleware);
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// Status VOR der Middleware loggen
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$this->logDebug("VOR Middleware #{$index} ({$middlewareName})", $context, $index);
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// Next-Funktion erstellen, die zur nächsten Middleware weiterleitet
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$next = function (MiddlewareContext $nextContext) use ($index, $middlewareName) {
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// Status beim Aufruf von $next() loggen
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$this->logDebug("NEXT aufgerufen in #{$index} ({$middlewareName})", $nextContext, $index);
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// Zur nächsten Middleware weitergehen
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$resultContext = $this->processMiddlewareStack($nextContext, $index + 1);
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// Status beim Rückgabewert von $next() loggen
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$this->logDebug("NEXT Rückgabe an #{$index} ({$middlewareName})", $resultContext, $index);
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// Detaillierte Prüfung auf verlorene Response
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if ($nextContext->hasResponse() && !$resultContext->hasResponse()) {
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$this->logError("RESPONSE VERLOREN zwischen Middleware #{$index} ({$middlewareName}) und nachfolgenden Middlewares!");
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}
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return $resultContext;
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};
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// Middleware mit dem Invoker ausführen
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$resultContext = $this->invoker->invoke($middleware, $context, $next, $this->stateManager);
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// Status NACH der Middleware loggen
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$this->logDebug("NACH Middleware #{$index} ({$middlewareName})", $resultContext, $index);
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/*
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// Prüfung ob diese Middleware eine Response hinzugefügt oder entfernt hat
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if (!$context->hasResponse() && $resultContext->hasResponse()) {
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$this->logInfo("✅ Response ERSTELLT von Middleware #{$index} ({$middlewareName})", [
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'middleware_name' => $middlewareName,
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'middleware_index' => $index,
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'response_status' => $resultContext->response?->status,
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]);
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} elseif ($context->hasResponse() && !$resultContext->hasResponse()) {
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$this->logError("❌ Response ENTFERNT von Middleware #{$index} ({$middlewareName})!", [
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'middleware_name' => $middlewareName,
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'middleware_index' => $index,
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'original_response_status' => $context->response?->status,
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]);
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}
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*/
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return $resultContext;
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}
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/**
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* Ermittelt einen lesbaren Namen für die Middleware
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*/
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private function getMiddlewareName(mixed $middleware): string
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{
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if (is_string($middleware)) {
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return $middleware;
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}
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if (is_object($middleware)) {
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$className = get_class($middleware);
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return substr($className, strrpos($className, '\\') + 1);
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}
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return gettype($middleware);
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}
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/**
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* Debug-Logging mit Context-Informationen
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*/
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private function logDebug(string $message, MiddlewareContext $context, int $index): void
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{
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$responseStatus = $context->hasResponse() ?
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"Response✅ (Status: " . ($context->response->statusCode ?? 'unknown') . ")" :
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"Response❌";
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/*
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$this->logger->debug('Middleware Chain: {message}', [
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'message' => $message,
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'response_status' => $responseStatus,
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'uri' => $context->request->uri ?? 'unknown',
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'method' => $context->request->method->value ?? 'unknown',
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'middleware_index' => $index,
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'has_response' => $context->hasResponse(),
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'response_code' => $context->response?->status->value,
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]);
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*/
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}
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/**
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* Info-Logging für wichtige Events
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*/
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private function logInfo(string $message, array $context = []): void
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{
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$this->logger->info('Middleware Chain: {message}', array_merge([
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'message' => $message,
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'component' => 'MiddlewareChain'
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], $context));
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}
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/**
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* Error-Logging für Probleme
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*/
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private function logError(string $message, array $context = []): void
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{
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$this->logger->error('Middleware Chain ERROR: {message}', array_merge([
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'message' => $message,
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'component' => 'MiddlewareChain',
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'stack_trace' => debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS, 5)
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], $context));
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}
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}
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