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<?php |
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/** |
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* Linna Filter |
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* |
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* @author Sebastian Rapetti <[email protected]> |
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* @copyright (c) 2018, Sebastian Rapetti |
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* @license http://opensource.org/licenses/MIT MIT License |
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*/ |
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declare(strict_types=1); |
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namespace Linna\Filter\Rules; |
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use InvalidArgumentException; |
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/** |
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* Check if passed string match a regex |
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*/ |
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class Regex implements RuleValidateInterface |
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{ |
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/** |
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* @var array Rule properties |
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*/ |
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public static $config = [ |
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'full_class' => __CLASS__, |
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'alias' => ['regex', 'rex', 'rx'], |
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'args_count' => 1, |
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'args_type' => ['string'] |
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]; |
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/** |
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* @var string Error message |
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*/ |
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private $message = ''; |
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/** |
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* Validate. |
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* |
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* @return bool |
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*/ |
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public function validate(): bool |
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{ |
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$args = \func_get_args(); |
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return $this->concreteValidate($args[0], $args[1]); |
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} |
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/** |
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* Concrete validate. |
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* |
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* @param string $received |
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* @param string $regex |
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* |
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* @return bool |
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* |
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* @throws InvalidArgumentException If a bad regex is provided. |
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*/ |
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private function concreteValidate(string $received, string $regex): bool |
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{ |
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$matches = []; |
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//error suppressed with @ because if occours preg_match PHP show a warning |
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//error replaced with exception |
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$result = @\preg_match($regex, $received, $matches); |
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if ($result === false) { |
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throw new InvalidArgumentException("Invalid regex provided {$regex}."); |
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} |
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if ($result === 0) { |
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$this->message = "Received value not match regex {$regex}"; |
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return true; |
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} |
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return false; |
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} |
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/** |
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* Return error message. |
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* |
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* @return string Error message |
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*/ |
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public function getMessage(): string |
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{ |
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return $this->message; |
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} |
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} |
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