[BUGFIX] Fetch the extension configuration the new way in 9 LTS

Classes/Controller/AbstractController.php

@@ -29,6 +29,7 @@ namespace SGalinski\SgNews\Controller;
 use RuntimeException;
 use SGalinski\SgNews\Domain\Model\Category;
 use SGalinski\SgNews\Domain\Model\News;
+use SGalinski\SgNews\Utility\ExtensionUtility;
 use TYPO3\CMS\Extbase\Domain\Model\FileReference;
 use TYPO3\CMS\Extbase\Mvc\Controller\ActionController;
 
@@ -59,8 +60,7 @@ abstract class AbstractController extends ActionController {
 	 */
 	public function initializeAction() {
 		$extensionKey = $this->request->getControllerExtensionKey();
-		$serializedConfiguration = $GLOBALS['TYPO3_CONF_VARS']['EXT']['extConf'][$extensionKey];
-		$this->extensionConfiguration = unserialize($serializedConfiguration, [FALSE]);
+		$this->extensionConfiguration = ExtensionUtility::getExtensionConfiguration($extensionKey);
 
 		parent::initializeAction();
 	}

Classes/Service/LicensingService.php

@@ -28,6 +28,7 @@ namespace SGalinski\SgNews\Service;
 
 use Psr\Http\Message\ResponseInterface;
 use Psr\Http\Message\ServerRequestInterface;
+use SGalinski\SgNews\Utility\ExtensionUtility;
 use TYPO3\CMS\Core\Authentication\BackendUserAuthentication;
 use TYPO3\CMS\Core\Utility\GeneralUtility;
 
@@ -54,7 +55,7 @@ class LicensingService {
 	public static function checkKey(): bool {
 		if (static::$isLicenseKeyValid === NULL) {
 			static::$isLicenseKeyValid = FALSE;
-			$configuration = unserialize($GLOBALS['TYPO3_CONF_VARS']['EXT']['extConf'][self::EXTENSION_KEY], [FALSE]);
+			$configuration = ExtensionUtility::getExtensionConfiguration(self::EXTENSION_KEY);
 			if (isset($configuration['key']) && $key = trim($configuration['key'])) {
 				static::$isLicenseKeyValid = (bool) preg_match('/^([A-Z\d]{6}-?){4}$/', $key);
 			}
@@ -71,7 +72,7 @@ class LicensingService {
 	 */
 	public static function ping($returnUrl = FALSE): string {
 		try {
-			$configuration = unserialize($GLOBALS['TYPO3_CONF_VARS']['EXT']['extConf'][self::EXTENSION_KEY], [FALSE]);
+			$configuration = ExtensionUtility::getExtensionConfiguration(self::EXTENSION_KEY);
 			$key = '';
 			if (isset($configuration['key'])) {
 				$key = trim($configuration['key']);

Classes/Utility/ExtensionUtility.php

+<?php
+
+namespace SGalinski\SgNews\Utility;
+
+/**
+ *
+ * Copyright notice
+ *
+ * (c) sgalinski Internet Services (https://www.sgalinski.de)
+ *
+ * All rights reserved
+ *
+ * This script is part of the TYPO3 project. The TYPO3 project is
+ * free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * The GNU General Public License can be found at
+ * http://www.gnu.org/copyleft/gpl.html.
+ *
+ * This script 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 General Public License for more details.
+ *
+ * This copyright notice MUST APPEAR in all copies of the script!
+ */
+
+use TYPO3\CMS\Core\Utility\VersionNumberUtility;
+
+/**
+ * Class ExtensionUtility
+ *
+ * @package SGalinski\SgMail\Utility
+ * @author Kevin Ditscheid <kevin.ditscheid@sgalinski.de>
+ */
+class ExtensionUtility {
+	/**
+	 * Get the extension configuration
+	 *
+	 * @param string $extKey
+	 * @return array
+	 */
+	public static function getExtensionConfiguration(string $extKey = 'sg_news'): array {
+		if (version_compare(VersionNumberUtility::getCurrentTypo3Version(), '9.0.0', '<')) {
+			$extConf = \unserialize(
+				$GLOBALS['TYPO3_CONF_VARS']['EXT']['extConf'][$extKey], ['allowed_classes' => FALSE]
+			);
+			return is_array($extConf) ? $extConf : [];
+		}
+
+		return $GLOBALS['TYPO3_CONF_VARS']['EXTENSIONS'][$extKey] ?? [];
+	}
+}