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<?php |
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namespace Swaggest\JsonSchema\Constraint; |
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use Swaggest\JsonSchema\Constraint\Format\IdnHostname; |
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use Swaggest\JsonSchema\Constraint\Format\Iri; |
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use Swaggest\JsonSchema\Constraint\Format\Uri; |
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class Format |
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{ |
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const DATE_REGEX_PART = '(\d{4})-(0[1-9]|1[0-2])-(0[1-9]|[12][0-9]|3[01])'; |
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const TIME_REGEX_PART = '([01][0-9]|2[0-3]):([0-5][0-9]):([0-5][0-9]|60)(\.[0-9]+)?(Z|(\+|-)([01][0-9]|2[0-3]):([0-5][0-9]))?'; |
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/** |
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* @see http://stackoverflow.com/a/1420225 |
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*/ |
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const HOSTNAME_REGEX = '/^ |
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(?=.{1,255}$) |
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[0-9a-z] |
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(([0-9a-z]|-){0,61}[0-9a-z])? |
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(\.[0-9a-z](?:(?:[0-9a-z]|-){0,61}[0-9a-z])?)* |
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\.? |
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$/ix'; |
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const JSON_POINTER_REGEX = '_^(?:/|(?:/[^/#]*)*)$_'; |
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const JSON_POINTER_RELATIVE_REGEX = '~^(0|[1-9][0-9]*)((?:/[^/#]*)*)(#?)$~'; |
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const JSON_POINTER_UNESCAPED_TILDE = '/~([^01]|$)/'; |
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public static function validationError($format, $data) |
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{ |
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switch ($format) { |
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case 'date-time': |
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return self::dateTimeError($data); |
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case 'date': |
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return preg_match('/^' . self::DATE_REGEX_PART . '$/i', $data) ? null : 'Invalid date'; |
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case 'time': |
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return preg_match('/^' . self::TIME_REGEX_PART . '$/i', $data) ? null : 'Invalid time'; |
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case 'uri': |
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return Uri::validationError($data, Uri::IS_SCHEME_REQUIRED); |
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case 'iri': |
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return Iri::validationError($data); |
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case 'email': |
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return filter_var($data, FILTER_VALIDATE_EMAIL) ? null : 'Invalid email'; |
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case 'idn-email': |
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return count(explode('@', $data, 3)) === 2 ? null : 'Invalid email'; |
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case 'ipv4': |
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return filter_var($data, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4) ? null : 'Invalid ipv4'; |
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case 'ipv6': |
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return filter_var($data, FILTER_VALIDATE_IP, FILTER_FLAG_IPV6) ? null : 'Invalid ipv6'; |
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case 'hostname': |
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return preg_match(self::HOSTNAME_REGEX, $data) ? null : 'Invalid hostname'; |
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case 'idn-hostname': |
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return IdnHostname::validationError($data); |
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case 'regex': |
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return self::regexError($data); |
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case 'json-pointer': |
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return self::jsonPointerError($data); |
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case 'relative-json-pointer': |
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return self::jsonPointerError($data, true); |
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case 'uri-reference': |
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return Uri::validationError($data, Uri::IS_URI_REFERENCE); |
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case 'iri-reference': |
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return Iri::validationError($data, Uri::IS_URI_REFERENCE); |
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case 'uri-template': |
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return Uri::validationError($data, Uri::IS_URI_TEMPLATE); |
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} |
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return null; |
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} |
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public static function dateTimeError($data) |
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{ |
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return preg_match('/^' . self::DATE_REGEX_PART . 'T' . self::TIME_REGEX_PART . '$/i', $data) |
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? null |
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: 'Invalid date-time: ' . $data; |
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} |
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public static function regexError($data) |
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{ |
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if (substr($data, -2) === '\Z') { |
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return 'Invalid regex: \Z is not supported'; |
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} |
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if (substr($data, 0, 2) === '\A') { |
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return 'Invalid regex: \A is not supported'; |
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} |
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$d = null; |
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foreach (array('/', '_', '~', '#', '!', '%', '`', '=') as $delimiter) { |
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if (strpos($data, $delimiter) === false) { |
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$d = $delimiter; |
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break; |
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} |
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} |
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return @preg_match($d . $data . $d, '') === false ? 'Invalid regex: ' . $data : null; |
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} |
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public static function jsonPointerError($data, $isRelative = false) |
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{ |
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if (preg_match(self::JSON_POINTER_UNESCAPED_TILDE, $data)) { |
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return 'Invalid json-pointer: unescaped ~'; |
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} |
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if ($isRelative) { |
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return preg_match(self::JSON_POINTER_RELATIVE_REGEX, $data) ? null : 'Invalid relative json-pointer'; |
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} else { |
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return preg_match(self::JSON_POINTER_REGEX, $data) ? null : 'Invalid json-pointer'; |
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} |
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} |
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} |