TYPO3 v15 dev-main snapshot ()

2026-08-10 22:31:09 +02:00
commit af8cc155b5
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+<?php
+
+declare(strict_types=1);
+
+/*
+ * This file is part of the TYPO3 CMS project.
+ *
+ * It is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, either version 2
+ * of the License, or any later version.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ *
+ * The TYPO3 project - inspiring people to share!
+ */
+
+namespace TYPO3\CMS\Core\Routing;
+
+use Psr\Http\Message\ServerRequestInterface;
+use Psr\Http\Message\UriInterface;
+use Symfony\Component\DependencyInjection\Attribute\Autoconfigure;
+use TYPO3\CMS\Core\Http\NormalizedParams;
+use TYPO3\CMS\Core\Http\Uri;
+
+/**
+ * This class helps to resolve the virtual path to the main entry point of the TYPO3 Backend.
+ */
+#[Autoconfigure(public: true)]
+class BackendEntryPointResolver
+{
+    protected string $entryPoint = '/typo3';
+
+    /**
+     * Returns a prefix such as /typo3/ or /mysubdir/typo3/ to the TYPO3 Backend with trailing slash.
+     */
+    public function getPathFromRequest(ServerRequestInterface $request): string
+    {
+        $entryPoint = $this->getEntryPoint($request);
+        if (str_contains($entryPoint, '//')) {
+            $entryPointParts = parse_url($entryPoint);
+            /* Remove trailing slash unless, the string is '/' itself */
+            $entryPoint = rtrim('/' . trim($entryPointParts['path'] ?? '', '/'), '/');
+        }
+        return $entryPoint . '/';
+    }
+
+    /**
+     * Returns a full URL to the main URL of the TYPO3 Backend.
+     */
+    public function getUriFromRequest(ServerRequestInterface $request, string $additionalPathPart = ''): UriInterface
+    {
+        $entryPoint = $this->getEntryPointConfiguration();
+        if (str_starts_with($entryPoint, 'https://') || str_starts_with($entryPoint, 'http://')) {
+            // fqdn, early return as all required information are available.
+            return new Uri($entryPoint . '/' . ltrim($additionalPathPart, '/'));
+        }
+        if ($request->getAttribute('normalizedParams') instanceof NormalizedParams) {
+            $normalizedParams = $request->getAttribute('normalizedParams');
+        } else {
+            $normalizedParams = NormalizedParams::createFromRequest($request);
+        }
+        if (str_starts_with($entryPoint, '//')) {
+            // Browser supports uri starting with `//` and uses the current request scheme for the link. Do avoid issue
+            // for example checking the url at some point we prefix it with the current request protocol.
+            return new Uri(($normalizedParams->isHttps() ? 'https:' : 'http:') . $entryPoint . '/' . ltrim($additionalPathPart, '/'));
+        }
+        return new Uri($normalizedParams->getSiteUrl() . $entryPoint . '/' . ltrim($additionalPathPart, '/'));
+    }
+
+    public function isBackendRoute(ServerRequestInterface $request): bool
+    {
+        return $this->getBackendRoutePath($request) !== null;
+    }
+
+    public function getBackendRoutePath(ServerRequestInterface $request): ?string
+    {
+        $uri = $request->getUri();
+        $path = $uri->getPath();
+        $entryPoint = $this->getEntryPoint($request);
+
+        if (str_contains($entryPoint, '//')) {
+            $entryPointParts = parse_url($entryPoint);
+            if ($uri->getHost() !== $entryPointParts['host']) {
+                return null;
+            }
+            /* Remove trailing slash unless, the string is '/' itself */
+            $entryPoint = rtrim('/' . trim($entryPointParts['path'] ?? '', '/'), '/');
+        }
+
+        if ($path === $entryPoint) {
+            return '';
+        }
+        if (str_starts_with($path, $entryPoint . '/')) {
+            return substr($path, strlen($entryPoint));
+        }
+        return null;
+    }
+
+    /**
+     * Returns a prefix such as /typo3 or /mysubdir/typo3 to the TYPO3 Backend *without* trailing slash.
+     */
+    protected function getEntryPoint(ServerRequestInterface $request): string
+    {
+        $entryPoint = $this->getEntryPointConfiguration();
+        if (str_contains($entryPoint, '//')) {
+            return $entryPoint;
+        }
+        if ($request->getAttribute('normalizedParams') instanceof NormalizedParams) {
+            $normalizedParams = $request->getAttribute('normalizedParams');
+        } else {
+            $normalizedParams = NormalizedParams::createFromRequest($request);
+        }
+        return $normalizedParams->getSitePath() . $entryPoint;
+    }
+
+    protected function getEntryPointConfiguration(): string
+    {
+        $entryPoint = $GLOBALS['TYPO3_CONF_VARS']['BE']['entryPoint'] ?? $this->entryPoint;
+        if (str_starts_with($entryPoint, 'https://')
+            || str_starts_with($entryPoint, 'http://')
+            || str_starts_with($entryPoint, '//')
+        ) {
+            $uri = new Uri(rtrim($entryPoint, '/'));
+            $uri = $uri->withPath($this->removeMultipleSlashes($uri->getPath()));
+            return (string)$uri;
+        }
+        return $this->removeMultipleSlashes(trim($entryPoint, '/'));
+    }
+
+    private function removeMultipleSlashes(string $value): string
+    {
+        return preg_replace('/(\/+)/', '/', $value);
+    }
+}