initiatione

src/DevOps/AppUrlNormalizer.php

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+<?php declare(strict_types=1);
+
+namespace SumediaStage\DevOps;
+
+use Shopware\Core\DevOps\Environment\EnvironmentHelperTransformerData;
+use Shopware\Core\DevOps\Environment\EnvironmentHelperTransformerInterface;
+
+/**
+ * Normalizes APP_URL by stripping the path component.
+ *
+ * This allows a Shopware installation licensed for "https://example.com" to run
+ * under a subdirectory like "https://example.com/stage/" without triggering
+ * AppUrlChangeDetectedException or plugin license violations.
+ *
+ * Configuration is injected via configure() by the SystemConfigSubscriber.
+ */
+class AppUrlNormalizer implements EnvironmentHelperTransformerInterface
+{
+    private static bool $enabled = true;
+
+    private static ?string $baseUrl = null;
+
+    public static function configure(bool $enabled, ?string $baseUrl): void
+    {
+        self::$enabled = $enabled;
+        self::$baseUrl = $baseUrl ?: null;
+    }
+
+    public static function transform(EnvironmentHelperTransformerData $data): void
+    {
+        if ($data->getKey() !== 'APP_URL' || !self::$enabled) {
+            return;
+        }
+
+        if (self::$baseUrl !== null) {
+            $data->setValue(rtrim(self::$baseUrl, '/'));
+            return;
+        }
+
+        $url = $data->getValue();
+        if (!\is_string($url)) {
+            return;
+        }
+
+        $parsed = parse_url($url);
+        if ($parsed === false || empty($parsed['host'])) {
+            return;
+        }
+
+        $normalized = ($parsed['scheme'] ?? 'https') . '://' . $parsed['host'];
+        if (isset($parsed['port'])) {
+            $normalized .= ':' . $parsed['port'];
+        }
+
+        $data->setValue($normalized);
+    }
+}

src/Resources/config/config.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+
+<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+        xsi:noNamespaceSchemaLocation="https://raw.githubusercontent.com/shopware/shopware/trunk/src/Core/System/SystemConfig/Schema/config.xsd">
+
+    <card>
+        <title>Sumedia Stage</title>
+        <title lang="de-DE">Sumedia Stage</title>
+
+        <input-field type="bool">
+            <name>normalizeAppUrl</name>
+            <label>Normalize APP_URL (strip subdirectory)</label>
+            <label lang="de-DE">APP_URL normalisieren (Unterverzeichnis entfernen)</label>
+            <helpText>
+                TECHNICAL BACKGROUND: Shopware stores APP_URL alongside the Shop ID (core.app.shopId) and compares it on every request via ShopIdProvider. If live uses "https://example.com" but stage uses "https://example.com/stage/", Shopware throws AppUrlChangeDetectedException and plugins report license errors.
+
+                HOW IT WORKS: This plugin registers an EnvironmentHelperTransformer that intercepts every internal APP_URL read and strips the path component before Shopware sees it. Both live and stage then present the same base URL to Shopware.
+
+                Example: https://example.com/stage/ becomes https://example.com
+
+                Safe to enable on live instances – if APP_URL has no path, the transformer is a no-op.
+
+                Changes take effect after cache:clear.
+            </helpText>
+            <helpText lang="de-DE">
+                TECHNISCHER HINTERGRUND: Shopware speichert APP_URL zusammen mit der Shop-ID (core.app.shopId) und vergleicht sie bei jedem Request via ShopIdProvider. Weichen Live ("https://example.com") und Stage ("https://example.com/stage/") ab, wirft Shopware eine AppUrlChangeDetectedException und Plugins melden Lizenzfehler.
+
+                FUNKTIONSWEISE: Das Plugin registriert einen EnvironmentHelperTransformer, der jeden internen APP_URL-Lesezugriff abfängt und den Pfad-Anteil entfernt, bevor Shopware ihn verarbeitet. Damit sehen Live und Stage dieselbe Basis-URL.
+
+                Beispiel: https://example.com/stage/ wird zu https://example.com
+
+                Auf Live-Instanzen ohne Pfad ist der Transformer wirkungslos.
+
+                Aenderungen greifen nach cache:clear.
+            </helpText>
+            <defaultValue>true</defaultValue>
+        </input-field>
+
+        <input-field type="text">
+            <name>baseUrl</name>
+            <label>Base URL override (optional)</label>
+            <label lang="de-DE">Basis-URL manuell setzen (optional)</label>
+            <helpText>
+                Leave empty for automatic detection – the transformer extracts scheme and host from APP_URL automatically.
+
+                Set this only if auto-detection produces a wrong result, e.g. behind a reverse proxy that alters the Host header.
+
+                Format: https://www.example.com (no trailing slash)
+            </helpText>
+            <helpText lang="de-DE">
+                Leer lassen fuer automatische Erkennung – der Transformer extrahiert Scheme und Host automatisch aus APP_URL.
+
+                Nur setzen, wenn die automatische Erkennung ein falsches Ergebnis liefert, z. B. hinter einem Reverse-Proxy, der den Host-Header veraendert.
+
+                Format: https://www.example.com (kein abschliessender Slash)
+            </helpText>
+            <defaultValue></defaultValue>
+        </input-field>
+
+    </card>
+
+</config>

src/Resources/config/services.xml

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+<?xml version="1.0" ?>
+
+<container xmlns="http://symfony.com/schema/dic/services"
+           xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+           xsi:schemaLocation="http://symfony.com/schema/dic/services http://symfony.com/schema/dic/services/services-1.0.xsd">
+
+    <services>
+
+        <service id="SumediaStage\Subscriber\SystemConfigSubscriber">
+            <argument type="service" id="Shopware\Core\System\SystemConfig\SystemConfigService" />
+            <tag name="kernel.event_subscriber" />
+        </service>
+
+    </services>
+
+</container>

src/Subscriber/SystemConfigSubscriber.php

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+<?php declare(strict_types=1);
+
+namespace SumediaStage\Subscriber;
+
+use Shopware\Core\System\SystemConfig\SystemConfigService;
+use SumediaStage\DevOps\AppUrlNormalizer;
+use Symfony\Component\EventDispatcher\EventSubscriberInterface;
+use Symfony\Component\HttpKernel\Event\RequestEvent;
+use Symfony\Component\HttpKernel\KernelEvents;
+
+class SystemConfigSubscriber implements EventSubscriberInterface
+{
+    private bool $configured = false;
+
+    public function __construct(private readonly SystemConfigService $systemConfigService)
+    {
+    }
+
+    public static function getSubscribedEvents(): array
+    {
+        return [
+            KernelEvents::REQUEST => ['onKernelRequest', 512],
+        ];
+    }
+
+    public function onKernelRequest(RequestEvent $event): void
+    {
+        if ($this->configured) {
+            return;
+        }
+
+        $this->configured = true;
+
+        $enabled = (bool) ($this->systemConfigService->get('SumediaStage.config.normalizeAppUrl') ?? true);
+        $baseUrl = (string) ($this->systemConfigService->get('SumediaStage.config.baseUrl') ?? '');
+
+        AppUrlNormalizer::configure($enabled, $baseUrl ?: null);
+    }
+}

src/SumediaStage.php

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+<?php declare(strict_types=1);
+
+namespace SumediaStage;
+
+use Shopware\Core\DevOps\Environment\EnvironmentHelper;
+use Shopware\Core\Framework\Plugin;
+use Shopware\Core\Framework\Plugin\Context\ActivateContext;
+use SumediaStage\DevOps\AppUrlNormalizer;
+
+class SumediaStage extends Plugin
+{
+    public function boot(): void
+    {
+        parent::boot();
+
+        if (!$this->isAllowed()) {
+            return;
+        }
+
+        EnvironmentHelper::addTransformer(AppUrlNormalizer::class);
+    }
+
+    public function activate(ActivateContext $activateContext): void
+    {
+        if ((string) EnvironmentHelper::getVariable('APP_ENV') === 'prod') {
+            throw new \RuntimeException(
+                'SumediaStage must not be activated in production (APP_ENV=prod). '
+                . 'This plugin is intended for staging and local environments only.'
+            );
+        }
+    }
+
+    private function isAllowed(): bool
+    {
+        if ((string) EnvironmentHelper::getVariable('APP_ENV') === 'prod') {
+            return false;
+        }
+
+        if ((string) EnvironmentHelper::getVariable('SUMEDIA_STAGE_ENABLED', '1') === '0') {
+            return false;
+        }
+
+        return true;
+    }
+}