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<?php |
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namespace League\JsonGuard\Constraint\DraftFour; |
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use League\JsonGuard\Assert; |
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use League\JsonGuard\Constraint\DraftFour\Format\FormatExtensionInterface; |
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use League\JsonGuard\ConstraintInterface; |
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use League\JsonGuard\Validator; |
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use function League\JsonGuard\error; |
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final class Format implements ConstraintInterface |
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{ |
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const KEYWORD = 'format'; |
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/** |
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* @see https://tools.ietf.org/html/rfc3339#section-5.6 |
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*/ |
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const DATE_TIME_PATTERN = |
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'/^(?<fullyear>\d{4})-(?<month>0[1-9]|1[0-2])-(?<mday>0[1-9]|[12][0-9]|3[01])' . 'T' . |
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'(?<hour>[01][0-9]|2[0-3]):(?<minute>[0-5][0-9]):(?<second>[0-5][0-9]|60)(?<secfrac>\.[0-9]+)?' . |
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'(Z|(\+|-)(?<offset_hour>[01][0-9]|2[0-3]):(?<offset_minute>[0-5][0-9]))$/i'; |
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/** |
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* @internal |
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*/ |
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const HOST_NAME_PATTERN = '/^[_a-z]+\.([_a-z]+\.?)+$/i'; |
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/** |
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* @var \League\JsonGuard\Constraint\DraftFour\Format\FormatExtensionInterface[] |
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*/ |
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private $extensions = []; |
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/** |
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* Any custom format extensions to use, indexed by the format name. |
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* |
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* @param array \League\JsonGuard\Constraint\DraftFour\Format\FormatExtensionInterface[] |
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*/ |
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public function __construct(array $extensions = []) |
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{ |
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foreach ($extensions as $format => $extension) { |
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$this->addExtension($format, $extension); |
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} |
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} |
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/** |
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* Add a custom format extension. |
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* |
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* @param string $format |
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* @param \League\JsonGuard\Constraint\DraftFour\Format\FormatExtensionInterface $extension |
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*/ |
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public function addExtension($format, FormatExtensionInterface $extension) |
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{ |
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$this->extensions[$format] = $extension; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function validate($value, $parameter, Validator $validator) |
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{ |
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Assert::type($parameter, 'string', self::KEYWORD, $validator->getSchemaPath()); |
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if (isset($this->extensions[$parameter])) { |
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return $this->extensions[$parameter]->validate($value, $validator); |
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} |
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switch ($parameter) { |
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case 'date-time': |
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return self::validateRegex( |
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$value, |
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self::DATE_TIME_PATTERN, |
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$validator |
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); |
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case 'uri': |
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return self::validateFilter( |
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$value, |
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FILTER_VALIDATE_URL, |
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null, |
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$validator |
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2 |
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); |
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case 'email': |
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return self::validateFilter( |
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2 |
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$value, |
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FILTER_VALIDATE_EMAIL, |
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null, |
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$validator |
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2 |
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); |
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case 'ipv4': |
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return self::validateFilter( |
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$value, |
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2 |
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FILTER_VALIDATE_IP, |
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FILTER_FLAG_IPV4, |
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$validator |
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); |
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case 'ipv6': |
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return self::validateFilter( |
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$value, |
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FILTER_VALIDATE_IP, |
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FILTER_FLAG_IPV6, |
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$validator |
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); |
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case 'hostname': |
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return self::validateRegex( |
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$value, |
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self::HOST_NAME_PATTERN, |
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$validator |
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1 |
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); |
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} |
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} |
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/** |
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* @param mixed $value |
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* @param string $pattern |
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* @param \League\JsonGuard\Validator $validator |
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* |
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* @return \League\JsonGuard\ValidationError|null |
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* |
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*/ |
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private static function validateRegex($value, $pattern, Validator $validator) |
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{ |
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if (!is_string($value) || preg_match($pattern, $value) === 1) { |
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return null; |
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} |
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return error('The value {data} must match the format {parameter}.', $validator); |
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} |
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/** |
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* @param mixed $value |
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* @param int $filter |
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* @param mixed $options |
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* @param \League\JsonGuard\Validator $validator |
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* |
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* @return \League\JsonGuard\ValidationError|null |
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* |
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*/ |
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private static function validateFilter($value, $filter, $options, Validator $validator) |
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{ |
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if (!is_string($value) || filter_var($value, $filter, $options) !== false) { |
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return null; |
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} |
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// This workaround allows otherwise valid protocol relative urls to pass. |
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// @see https://bugs.php.net/bug.php?id=72301 |
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if ($filter === FILTER_VALIDATE_URL && is_string($value) && strpos($value, '//') === 0) { |
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if (filter_var('http:' . $value, $filter, $options) !== false) { |
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return null; |
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} |
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} |
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return error('The value must match the format {parameter}.', $validator); |
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} |
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} |
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thephpleague /
json-guard
