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<?php |
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namespace League\JsonGuard\Constraints\DraftFour; |
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use League\JsonGuard\Assert; |
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use League\JsonGuard\Constraint; |
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use League\JsonGuard\Constraints\DraftFour\Format\FormatExtension; |
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use League\JsonGuard\Validator; |
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use function League\JsonGuard\error; |
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class Format implements Constraint |
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{ |
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const KEYWORD = 'format'; |
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// @codingStandardsIgnoreStart |
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// @see https://www.w3.org/TR/2012/REC-xmlschema11-2-20120405/datatypes.html#dateTime-lexical-mapping |
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const DATE_TIME_PATTERN = '/^-?([1-9][0-9]{3,}|0[0-9]{3})-(0[1-9]|1[0-2])-(0[1-9]|[12][0-9]|3[01])T(([01][0-9]|2[0-3]):[0-5][0-9]:[0-5][0-9](\.[0-9]+)?|(24:00:00(\.0+)?))(Z|(\+|-)((0[0-9]|1[0-3]):[0-5][0-9]|14:00))?$/'; |
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// @codingStandardsIgnoreEnd |
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const HOST_NAME_PATTERN = '/^[_a-z]+\.([_a-z]+\.?)+$/i'; |
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/** |
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* @var \League\JsonGuard\Constraints\DraftFour\Format\FormatExtension[] |
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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\Constraints\DraftFour\Format\FormatExtension[] |
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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\Constraints\DraftFour\Format\FormatExtension $extension |
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*/ |
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public function addExtension($format, FormatExtension $extension) |
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{ |
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$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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); |
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case 'email': |
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return self::validateFilter( |
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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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); |
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case 'ipv4': |
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return self::validateFilter( |
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$value, |
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FILTER_VALIDATE_IP, |
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FILTER_FLAG_IPV4, |
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$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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); |
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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
