Deletion of uploaded files moved out to the kernel.terminate listener. Added tests to ensure that files have been deleted

Author: luzrain

src/Http/DeleteUploadedFilesListener.php

@@ -0,0 +1,26 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Luzrain\PHPStreamServerBundle\Http;
+
+use Symfony\Component\HttpFoundation\File\UploadedFile;
+use Symfony\Component\HttpKernel\Event\TerminateEvent;
+
+final class DeleteUploadedFilesListener
+{
+    public function onKernelTerminate(TerminateEvent $event): void
+    {
+        if (!$event->isMainRequest()) {
+            return;
+        }
+
+        $files = $event->getRequest()->files->all();
+
+        \array_walk_recursive($files, static function (UploadedFile $file) {
+            if (\file_exists($file->getRealPath())) {
+                \unlink($file->getRealPath());
+            }
+        });
+    }
+}

src/Http/HttpRequestHandler.php

@@ -11,11 +11,8 @@
 use Psr\Http\Message\StreamFactoryInterface;
 use Symfony\Bridge\PsrHttpMessage\Factory\HttpFoundationFactory;
 use Symfony\Bridge\PsrHttpMessage\Factory\PsrHttpFactory;
-use Symfony\Bridge\PsrHttpMessage\Factory\UploadedFile;
 use Symfony\Bridge\PsrHttpMessage\HttpFoundationFactoryInterface;
 use Symfony\Bridge\PsrHttpMessage\HttpMessageFactoryInterface;
-use Symfony\Component\HttpFoundation\Request;
-use Symfony\Component\HttpFoundation\Response;
 use Symfony\Component\HttpKernel\KernelInterface;
 use Symfony\Component\HttpKernel\TerminableInterface;
 
@@ -70,24 +67,13 @@ private function handle(ServerRequestInterface $request): ResponseInterface
         /** @var WorkerProcess $worker */
         $worker = $this->kernel->getContainer()->get('phpstreamserver.worker');
 
-        $worker->getEventLoop()->defer(fn() => $this->terminate($symfonyRequest, $symfonyResponse));
-
-        return $this->psrHttpFactory->createResponse($symfonyResponse);
-    }
-
-    private function terminate(Request $symfonyRequest, Response $symfonyResponse): void
-    {
-        if ($this->kernel instanceof TerminableInterface) {
-            $this->kernel->terminate($symfonyRequest, $symfonyResponse);
-        }
-
-        // Delete all uploaded files
-        $files = $symfonyRequest->files->all();
-        \array_walk_recursive($files, static function (UploadedFile $file) {
-            if (\file_exists($file->getRealPath())) {
-                \unlink($file->getRealPath());
+        $worker->getEventLoop()->defer(function () use ($symfonyRequest, $symfonyResponse): void {
+            if ($this->kernel instanceof TerminableInterface) {
+                $this->kernel->terminate($symfonyRequest, $symfonyResponse);
             }
         });
+
+        return $this->psrHttpFactory->createResponse($symfonyResponse);
     }
 
     private function findFileInPublicDirectory(string $requestPath): string|null

src/Internal/Functions.php

@@ -22,9 +22,7 @@ public static function cpuCount(): int
         if (\PHP_VERSION_ID >= 80300) {
             return \posix_sysconf(\POSIX_SC_NPROCESSORS_ONLN);
         } elseif (\DIRECTORY_SEPARATOR === '/' && \function_exists('shell_exec')) {
-            return \strtolower(\PHP_OS) === 'darwin'
-                ? (int) \shell_exec('sysctl -n machdep.cpu.core_count')
-                : (int) \shell_exec('nproc');
+            return \strtolower(\PHP_OS) === 'darwin' ? (int) \shell_exec('sysctl -n machdep.cpu.core_count') : (int) \shell_exec('nproc');
         } else {
             return 1;
         }

src/config/services.php

@@ -4,6 +4,7 @@
 
 use Luzrain\PHPStreamServerBundle\ConfigLoader;
 use Luzrain\PHPStreamServerBundle\Event\HttpServerStartEvent;
+use Luzrain\PHPStreamServerBundle\Http\DeleteUploadedFilesListener;
 use Luzrain\PHPStreamServerBundle\Http\HttpRequestHandler;
 use Luzrain\PHPStreamServerBundle\Internal\WorkerConfigurator;
 use Luzrain\PHPStreamServerBundle\ReloadStrategy\OnEachRequest;
@@ -15,6 +16,7 @@
 use Symfony\Component\DependencyInjection\ContainerBuilder;
 use Symfony\Component\DependencyInjection\Reference;
 use Symfony\Component\HttpKernel\Event\ExceptionEvent;
+use Symfony\Component\HttpKernel\Event\TerminateEvent;
 
 return static function (array $config, ContainerBuilder $container) {
     $container
@@ -48,6 +50,14 @@
         ->setPublic(true)
     ;
 
+    $container
+        ->register('phpstreamserver.delete_uploaded_files_listener', DeleteUploadedFilesListener::class)
+        ->addTag('kernel.event_listener', [
+            'event' => TerminateEvent::class,
+            'priority' => -1024,
+        ])
+    ;
+
     if ($config['reload_strategy']['on_exception']['active']) {
         $container
             ->register('phpstreamserver.on_exception_reload_strategy', OnException::class)

tests/App/RequestTestController.php

@@ -35,6 +35,7 @@ private function normalizeFiles(UploadedFile &$file): void
             'filename' => $file->getClientOriginalName(),
             'extension' => $file->getClientOriginalExtension(),
             'sha1' => \hash_file('sha1', $file->getRealPath()),
+            'realpath' => $file->getRealPath(),
             'size' => $file->getSize(),
         ];
     }

tests/RequestTest.php

@@ -150,6 +150,8 @@ public function testMultipartRequest(): void
             ]),
         ]);
 
+        \usleep(500000);
+
         // Assert request
         $this->assertCount(2, $response['post']);
         $this->assertSame('test-1-data', $response['post']['test-1']);
@@ -161,30 +163,35 @@ public function testMultipartRequest(): void
         $this->assertSame('txt', $file['extension']);
         $this->assertSame(75, $file['size']);
         $this->assertSame('781eaba2e9a92ddf42748bd8f56a9990459ea413', $file['sha1']);
+        $this->assertFileDoesNotExist($file['realpath']);
 
         $file = $response['files']['file_one'][1];
         $this->assertSame('test2.txt', $file['filename']);
         $this->assertSame('txt', $file['extension']);
         $this->assertSame(47, $file['size']);
         $this->assertSame('f69850b7b6dddf24c14581956f5b6aa3ae9cd54e', $file['sha1']);
+        $this->assertFileDoesNotExist($file['realpath']);
 
         $file = $response['files']['file_three'];
         $this->assertSame('test3.txt', $file['filename']);
         $this->assertSame('txt', $file['extension']);
         $this->assertSame(27, $file['size']);
         $this->assertSame('4c129254b51981cba03e4c8aac82bb329880971a', $file['sha1']);
+        $this->assertFileDoesNotExist($file['realpath']);
 
         $file = $response['files']['image'];
         $this->assertSame('dot.png', $file['filename']);
         $this->assertSame('png', $file['extension']);
         $this->assertSame(70, $file['size']);
         $this->assertSame('4a5eb7171b58e08a6881721e3b43d5a44419a2be', $file['sha1']);
+        $this->assertFileDoesNotExist($file['realpath']);
 
         $file = $response['files']['big_file'];
         $this->assertSame('t.bin', $file['filename']);
         $this->assertSame('bin', $file['extension']);
         $this->assertSame(5000000, $file['size']);
         $this->assertSame('1310fa4a837135d0a5d13388a21e49474eea00ac', $file['sha1']);
+        $this->assertFileDoesNotExist($file['realpath']);
     }
 
     public function testRawRequest(): void