Merge pull request #73 from blitz-php/devs

feat: ajout du middleware `FileViewer`

Author: dimtrovich

src/Middlewares/FileViewer.php

@@ -0,0 +1,74 @@
+<?php
+
+/**
+ * This file is part of Blitz PHP framework.
+ *
+ * (c) 2022 Dimitri Sitchet Tomkeu <devcode.dst@gmail.com>
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE file that was distributed with this source code.
+ */
+
+namespace BlitzPHP\Middlewares;
+
+use BlitzPHP\Filesystem\Adapters\FilesystemAdapter;
+use BlitzPHP\Filesystem\Exceptions\FileNotFoundException;
+use BlitzPHP\Filesystem\FilesystemManager;
+use BlitzPHP\Http\Request;
+use BlitzPHP\Http\Response;
+use Psr\Http\Message\ResponseInterface;
+use Psr\Http\Message\ServerRequestInterface;
+use Psr\Http\Server\MiddlewareInterface;
+use Psr\Http\Server\RequestHandlerInterface;
+
+class FileViewer implements MiddlewareInterface
+{
+    /**
+     * Chemin d'accès du fichier qu'on souhaite affiché
+     */
+    private string $path = '';
+
+    private ?FilesystemAdapter $disk = null;
+
+    public function __construct(private FilesystemManager $filesystem, private Response $response)
+    {
+    }
+
+    /**
+     * @param Request $request
+     */
+    public function process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface
+    {
+        $config = config('filesystems');
+
+        if ([] === ($config['viewable'] ?? [])) {
+            return $handler->handle($request);
+        }
+
+        $path                  = trim(urldecode($request->getPath()), '/');
+        [$prefix, $this->path] = explode('/', $path, 2);
+
+        foreach ($config['disks'] as $name => $disk) {
+            if (str_ends_with(trim($disk['url'], '/'), trim($prefix, '/'))) {
+                $this->disk = $this->filesystem->disk($name); // @phpstan-ignore-line
+                break;
+            }
+        }
+
+        if (null === $this->disk) {
+            return $handler->handle($request);
+        }
+
+        if (! $this->disk->exists($this->path)) {
+            throw FileNotFoundException::fileNotFound($this->path);
+        }
+
+        $path = $this->disk->path($this->path);
+
+        if ($request->boolean('download')) {
+            return $this->response->download($path);
+        }
+
+        return $this->response->file($path);
+    }
+}