From 4f68494614e599911d5dd90ed4695e78b0f4e9ef Mon Sep 17 00:00:00 2001
From: alexmerlin <alex.merlin.1985@gmail.com>
Date: Fri, 28 Nov 2025 07:57:20 +0200
Subject: [PATCH] Issue #474: Throw BadException on
 MalformedRequestBodyException

Signed-off-by: alexmerlin <alex.merlin.1985@gmail.com>
---
 config/pipeline.php                           |  2 ++
 .../MalformedRequestBodyMiddleware.php        | 31 +++++++++++++++++++
 2 files changed, 33 insertions(+)
 create mode 100644 src/App/src/Middleware/MalformedRequestBodyMiddleware.php

diff --git a/config/pipeline.php b/config/pipeline.php
index da98ec7..8467ee4 100644
--- a/config/pipeline.php
+++ b/config/pipeline.php
@@ -7,6 +7,7 @@
 use Api\App\Middleware\AuthorizationMiddleware;
 use Api\App\Middleware\ContentNegotiationMiddleware;
 use Api\App\Middleware\DeprecationMiddleware;
+use Api\App\Middleware\MalformedRequestBodyMiddleware;
 use Api\App\Middleware\ResourceProviderMiddleware;
 use Dot\ResponseHeader\Middleware\ResponseHeaderMiddleware;
 use Mezzio\Application;
@@ -28,6 +29,7 @@
     // - return ProblemDetails response
     $app->pipe(ProblemDetailsMiddleware::class);
 
+    $app->pipe(MalformedRequestBodyMiddleware::class);
     $app->pipe(BodyParamsMiddleware::class);
     $app->pipe(ServerUrlMiddleware::class);
     $app->pipe(CorsMiddleware::class);
diff --git a/src/App/src/Middleware/MalformedRequestBodyMiddleware.php b/src/App/src/Middleware/MalformedRequestBodyMiddleware.php
new file mode 100644
index 0000000..7434e15
--- /dev/null
+++ b/src/App/src/Middleware/MalformedRequestBodyMiddleware.php
@@ -0,0 +1,31 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Api\App\Middleware;
+
+use Api\App\Exception\BadRequestException;
+use Api\App\Exception\RuntimeException;
+use Mezzio\Helper\Exception\MalformedRequestBodyException;
+use Psr\Http\Message\ResponseInterface;
+use Psr\Http\Message\ServerRequestInterface;
+use Psr\Http\Server\MiddlewareInterface;
+use Psr\Http\Server\RequestHandlerInterface;
+
+readonly class MalformedRequestBodyMiddleware implements MiddlewareInterface
+{
+    /**
+     * @throws BadRequestException
+     * @throws RuntimeException
+     */
+    public function process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface
+    {
+        try {
+            return $handler->handle($request);
+        } catch (MalformedRequestBodyException $exception) {
+            throw BadRequestException::create(
+                $exception->getMessage() ?: 'Error when parsing JSON request body: Syntax error'
+            );
+        }
+    }
+}