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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 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 extends Webmozart |
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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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/** |
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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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call_user_func_array( |
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[Webmozart::class, 'typeToString'], |
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[is_object($value) ? get_class($value) : gettype($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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} |
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simplesamlphp /
assert
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