* @copyright 2025 Johann Duscher */ use dokuwiki\Extension\AdminPlugin; // Protect against direct call if (!defined('DOKU_INC')) die(); /** * Class admin_plugin_deletepageguard * * Provides an admin interface for validating Delete Page Guard patterns * and offering configuration guidance to administrators. */ class admin_plugin_deletepageguard extends AdminPlugin { /** * Return sort order for position in admin menu * @return int */ public function getMenuSort() { return 200; } /** * Return true if access to this admin plugin is allowed * @return bool */ public function forAdminOnly() { return true; } /** * Handle user request * @return void */ public function handle() { if (isset($_POST['validate_patterns'])) { $this->validatePatternsFromPost(); } } /** * Render HTML output * @return void */ public function html() { echo '

' . $this->getLang('admin_title') . '

'; echo '

'; // Show current patterns and validation results $patterns = $this->getConf('patterns'); $this->showPatternValidation($patterns); // Add validation form echo '

' . $this->getLang('test_patterns_title') . '

'; echo ''; echo '

'; } /** * Validate patterns from POST data * @return void */ private function validatePatternsFromPost() { $patterns = $_POST['test_patterns'] ?? ''; echo '

' . $this->getLang('validation_results_title') . '

'; $this->showPatternValidation($patterns); } /** * Display pattern validation results * @param string $patterns The patterns to validate * @return void */ private function showPatternValidation($patterns) { if (empty(trim($patterns))) { echo '

' . $this->getLang('no_patterns') . '

'; return; } $lines = preg_split('/\R+/', $patterns, -1, PREG_SPLIT_NO_EMPTY); $hasErrors = false; $validCount = 0; echo '

'; echo '

' . $this->getLang('validation_results') . '

'; echo '

✓ '; echo 'Line ' . $lineNum . ': ' . hsc($pattern) . '
✗ '; echo 'Line ' . $lineNum . ': ' . hsc($pattern) . '
'; echo ' ' . hsc($status) . '

'; if (!$hasErrors && $validCount > 0) { echo '

' . sprintf($this->getLang('all_patterns_valid'), $validCount) . '

'; } elseif ($hasErrors) { echo '

' . $this->getLang('some_patterns_invalid') . '

'; } echo '

'; } /** * Validate a single pattern and return detailed error message * @param string $pattern The pattern to validate * @return string|true True if valid, error message if invalid */ private function validateSinglePattern($pattern) { // Same validation logic as in action.php but with more detailed messages if (strlen($pattern) > 1000) { return $this->getLang('error_pattern_too_long'); } if (preg_match('/($.*$.*\+.*$.*$.*\+)|($.*$.*\*.*$.*$.*\*)/', $pattern)) { return $this->getLang('error_pattern_redos'); } $escapedPattern = '/' . str_replace('/', '\/', $pattern) . '/u'; $test = @preg_match($escapedPattern, ''); if ($test === false) { $error = error_get_last(); $errorMsg = $error && isset($error['message']) ? $error['message'] : 'Unknown error'; return $this->getLang('error_pattern_syntax') . ': ' . $errorMsg; } return true; } }