Initial commit

typo3conf/ext/vhs/Classes/Utility/FrontendSimulationUtility.php

@@ -0,0 +1,69 @@
+<?php
+namespace FluidTYPO3\Vhs\Utility;
+
+/*
+ * This file is part of the FluidTYPO3/Vhs project under GPLv2 or later.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.md file that was distributed with this source code.
+ */
+
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+
+/**
+ * Frontend Simulation Utility
+ *
+ * Utility to simulate frontend enviroment in backend enviroment.
+ *
+ * @author Xaver Maierhofer <xaver.maierhofer@xwissen.info>
+ * @package Vhs
+ * @subpackage Utility
+ */
+class FrontendSimulationUtility {
+
+	/**
+	 * Sets the global variables $GLOBALS['TSFE']->csConvObj and $GLOBALS['TSFE']->renderCharset in Backend mode
+	 * This somewhat hacky work around is currently needed because the conv_case() and convCaseFirst() functions of tslib_cObj rely on those variables to be set
+	 *
+	 * @return mixed
+	 */
+	public static function simulateFrontendEnvironment() {
+		if ('BE' !== TYPO3_MODE) {
+			return;
+		}
+		$tsfeBackup = isset($GLOBALS['TSFE']) ? $GLOBALS['TSFE'] : NULL;
+		$GLOBALS['TSFE'] = new \stdClass();
+		// preparing csConvObj
+		if (FALSE === is_object($GLOBALS['TSFE']->csConvObj)) {
+			if (TRUE === is_object($GLOBALS['LANG'])) {
+				$GLOBALS['TSFE']->csConvObj = $GLOBALS['LANG']->csConvObj;
+			} else {
+				$GLOBALS['TSFE']->csConvObj = GeneralUtility::makeInstance('TYPO3\\CMS\\Core\\Charset\\CharsetConverter');
+			}
+		}
+		// preparing renderCharset
+		if (FALSE === is_object($GLOBALS['TSFE']->renderCharset)) {
+			if (TRUE === is_object($GLOBALS['LANG'])) {
+				$GLOBALS['TSFE']->renderCharset = $GLOBALS['LANG']->charSet;
+			} else {
+				$GLOBALS['TSFE']->renderCharset = 'utf-8';
+			}
+		}
+		return $tsfeBackup;
+	}
+
+	/**
+	 * Resets $GLOBALS['TSFE'] if it was previously changed by simulateFrontendEnvironment()
+	 *
+	 * @param mixed $tsfeBackup
+	 * @return void
+	 * @see simulateFrontendEnvironment()
+	 */
+	public static function resetFrontendEnvironment($tsfeBackup) {
+		if ('BE' !== TYPO3_MODE) {
+			return;
+		}
+		$GLOBALS['TSFE'] = $tsfeBackup;
+	}
+
+}