Initial commit - Typo3 11.5.41

typo3conf/ext/news/Classes/Utility/Validation.php

@@ -0,0 +1,63 @@
+<?php
+
+namespace GeorgRinger\News\Utility;
+
+/**
+ * This file is part of the "news" Extension for TYPO3 CMS.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ */
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+
+/**
+ * Validation
+ */
+class Validation
+{
+
+    /**
+     * Validate ordering as extbase can't handle that currently
+     *
+     * @param string $fieldToCheck
+     * @param string $allowedSettings
+     * @return bool
+     */
+    public static function isValidOrdering($fieldToCheck, $allowedSettings): bool
+    {
+        $isValid = true;
+
+        if (empty($fieldToCheck)) {
+            return $isValid;
+        }
+        if (empty($allowedSettings)) {
+            return false;
+        }
+
+        $fields = GeneralUtility::trimExplode(',', $fieldToCheck, true);
+        foreach ($fields as $field) {
+            if ($isValid === true) {
+                $split = GeneralUtility::trimExplode(' ', $field, true);
+                $count = count($split);
+                switch ($count) {
+                    case 1:
+                        if (!GeneralUtility::inList($allowedSettings, $split[0])) {
+                            $isValid = false;
+                        }
+                        break;
+                    case 2:
+                        if ((strtolower($split[1]) !== 'desc' && strtolower($split[1]) !== 'asc') ||
+                            !GeneralUtility::inList($allowedSettings, $split[0])
+                        ) {
+                            $isValid = false;
+                        }
+                        break;
+                    default:
+                        $isValid = false;
+                }
+            }
+        }
+
+        return $isValid;
+    }
+}