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<?php |
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declare(strict_types=1); |
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namespace SimpleSAML\Assert; |
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use BadMethodCallException; |
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use DateTime; |
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use InvalidArgumentException; |
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use Throwable; |
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use Webmozart\Assert\Assert as Webmozart; |
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/** |
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* Webmozart\Assert wrapper class |
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* |
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* @package simplesamlphp/assert |
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*/ |
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final class Assert |
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{ |
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private static string $base64_regex = '/^(?:[A-Za-z0-9+\/]{4})*(?:[A-Za-z0-9+\/]{2}==|[A-Za-z0-9+\/]{3}=)?$/'; |
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// private static string $datetime_regex = '/^([0-9]{4})-([0-9]{2})-([0-9]{2})T([0-9]{2}):([0-9]{2}):([0-9]{2})(.[0-9]+)?$/'; |
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/** |
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* @param string $name |
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* @param array $arguments |
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*/ |
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public static function __callStatic($name, $arguments): void |
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{ |
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// Handle Exception-parameter |
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$exception = AssertionFailedException::class; |
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$last = end($arguments); |
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if (is_string($last) && class_exists($last) && is_subclass_of($last, Throwable::class)) { |
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$exception = $last; |
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array_pop($arguments); |
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} |
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try { |
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call_user_func_array([Webmozart::class, $name], $arguments); |
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return; |
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} catch (InvalidArgumentException $e) { |
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throw new $exception($e->getMessage()); |
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} |
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} |
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/** |
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* Note: This test is not bullet-proof but prevents a string containing illegal characters |
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* from being passed and ensures the string roughly follows the correct format for a Base64 encoded string |
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* |
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* @param string $value |
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* @param string $message |
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*/ |
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public static function stringPlausibleBase64(string $value, $message = ''): void |
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{ |
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$result = true; |
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if (filter_var($value, FILTER_VALIDATE_REGEXP, ['options' => ['regexp' => self::$base64_regex]]) === false) { |
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$result = false; |
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} else { |
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$decoded = base64_decode($value, true); |
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if ($decoded === false) { |
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$result = false; |
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} elseif (base64_encode($decoded) !== $value) { |
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$result = false; |
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} |
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} |
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if ($result === false) { |
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throw new AssertionFailedException( |
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sprintf( |
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$message ?: '\'%s\' is not a valid Base64 encoded string', |
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$value |
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) |
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); |
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} |
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} |
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/** |
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* @param string $value |
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* @param string $message |
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*/ |
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public static function validDateTime(string $value, $message = ''): void |
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{ |
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if (DateTime::createFromFormat(DateTime::ISO8601, $value) === false) { |
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throw new AssertionFailedException( |
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sprintf( |
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$message ?: '\'%s\' is not a valid DateTime', |
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$value |
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) |
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); |
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} |
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} |
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/** |
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* @param string $value |
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* @param string $message |
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*/ |
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public static function validDateTimeZulu(string $value, $message = ''): void |
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{ |
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$dateTime = DateTime::createFromFormat(DateTime::ISO8601, $value); |
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if ($dateTime === false) { |
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throw new AssertionFailedException( |
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sprintf( |
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$message ?: '\'%s\' is not a valid DateTime', |
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$value |
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) |
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); |
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} elseif ($dateTime->getTimezone() !== 'Z') { |
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throw new AssertionFailedException( |
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sprintf( |
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$message ?: '\'%s\' is not a DateTime expressed in the UTC timezone using the \'Z\' timezone identifier.', |
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$value |
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) |
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); |
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} |
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} |
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} |
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simplesamlphp /
assert
