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<?php |
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|
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if (!defined('ABSPATH')) { |
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exit; |
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} |
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|
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/** |
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* Compiles redirect source patterns at every write boundary. |
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* |
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* This shared validator contains no presentation concerns so admin handlers, |
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* imports, REST/WP-CLI writes, and the repository can enforce one contract. |
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*/ |
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final class ABJ_404_Solution_RegexSourcePatternValidator { |
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|
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/** @var ABJ_404_Solution_Functions */ |
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private $functions; |
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|
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/** |
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* @param ABJ_404_Solution_Functions $functions |
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*/ |
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public function __construct($functions) { |
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$this->functions = $functions; |
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} |
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|
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/** |
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* @return array{valid: bool, detail: string} |
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*/ |
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public function validate(string $pattern): array { |
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if ($pattern === '') { |
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return array('valid' => false, 'detail' => 'Source pattern is empty.'); |
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} |
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if (preg_match('/[\x00-\x1F\x7F]/', $pattern) === 1) { |
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return array('valid' => false, 'detail' => 'Source pattern contains control characters.'); |
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} |
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|
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$warning = ''; |
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set_error_handler(static function($severity, $message) use (&$warning) { |
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$warning = $message; |
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return true; |
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}); |
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try { |
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$this->functions->regexMatch($pattern, ''); |
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} catch (Throwable $error) { // allow-silent-catch: the original regex engine error is returned in detail below. |
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$warning = $error->getMessage(); |
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} finally { |
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restore_error_handler(); |
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} |
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|
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return array('valid' => $warning === '', 'detail' => $warning); |
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} |
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} |
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|
