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lib/Middleware/TrailingSlashMiddleware.php

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+<?php
+/*
+ * Copyright (C) 2021 Xibo Signage Ltd
+ *
+ * Xibo - Digital Signage - http://www.xibo.org.uk
+ *
+ * This file is part of Xibo.
+ *
+ * Xibo is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * any later version.
+ *
+ * Xibo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with Xibo.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+namespace Xibo\Middleware;
+
+use Psr\Http\Message\ResponseInterface as Response;
+use Psr\Http\Message\ServerRequestInterface as Request;
+use Psr\Http\Server\MiddlewareInterface;
+use Psr\Http\Server\RequestHandlerInterface as RequestHandler;
+use Slim\App;
+
+/**
+ * Trailing Slash Middleware
+ *  this middleware is used for routes contained inside a directory
+ *  Apache automatically adds a trailing slash to these URLs, Nginx does not.
+ *  Slim treats trailing slashes differently to non-trailing slashes
+ *  We need to mimic Apache for the director route.
+ * @package Xibo\Middleware
+ */
+class TrailingSlashMiddleware implements MiddlewareInterface
+{
+    /* @var App $app */
+    private $app;
+
+    /**
+     * Storage constructor.
+     * @param $app
+     */
+    public function __construct($app)
+    {
+        $this->app = $app;
+    }
+    /**
+     * Middleware process
+     * @param \Psr\Http\Message\ServerRequestInterface $request
+     * @param \Psr\Http\Server\RequestHandlerInterface $handler
+     * @return \Psr\Http\Message\ResponseInterface
+     */
+    public function process(Request $request, RequestHandler $handler): Response
+    {
+        $uri = $request->getUri();
+        $path = $uri->getPath();
+
+        if ($path === $this->app->getBasePath()) {
+            // Add a trailing slash for the route middleware to match
+            $request = $request->withUri($uri->withPath($path . '/'));
+        }
+
+        return $handler->handle($request);
+    }
+}