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<?php |
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/* |
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* This file is part of the JVal package. |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace JVal\Constraint; |
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use JVal\Constraint; |
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use JVal\Context; |
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use JVal\Exception\Constraint\InvalidTypeException; |
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use JVal\Types; |
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use JVal\Walker; |
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use DateTime; |
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use stdClass; |
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/** |
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* Constraint for the "format" keyword. |
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*/ |
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class FormatConstraint implements Constraint |
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{ |
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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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/** |
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* @see http://tools.ietf.org/html/rfc3986#appendix-B |
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* |
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* Original regex has been modified to reject URI references. It just |
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* enforces the general structure of the URI (each part, like scheme, |
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* authority, etc. should be validated separately) |
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*/ |
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const URI_REGEX = '#^(([^:/?\#]+):)?//([^/?\#]*)(\?([^\#]*))?(\#(.*))?#ix'; |
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/** |
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* {@inheritdoc} |
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*/ |
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public function keywords() |
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{ |
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return ['format']; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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357 |
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public function supports($type) |
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{ |
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return $type === Types::TYPE_STRING; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function normalize(stdClass $schema, Context $context, Walker $walker) |
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{ |
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if (!is_string($schema->format)) { |
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1 |
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$context->enterNode('format'); |
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throw new InvalidTypeException($context, Types::TYPE_STRING); |
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} |
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// TODO: add option to treat unknown format as a schema error |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function apply($instance, stdClass $schema, Context $context, Walker $walker) |
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{ |
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if (!is_string($instance)) { |
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$context->addViolation('should be a string'); |
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} elseif ($schema->format === 'date-time') { |
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// PHP support for RFC3339 doesn't include fractional time |
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// (milliseconds) so we must add another check if needed |
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if (!$this->isDateTimeValid($instance, DATE_RFC3339) |
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&& !$this->isDateTimeValid($instance, 'Y-m-d\TH:i:s.uP')) { |
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$context->addViolation('should be a valid date-time (RFC3339)'); |
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} |
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} elseif ($schema->format === 'email') { |
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if (!filter_var($instance, FILTER_VALIDATE_EMAIL)) { |
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$context->addViolation('should be a valid email'); |
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} |
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} elseif ($schema->format === 'hostname') { |
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if (!preg_match(self::HOSTNAME_REGEX, $instance)) { |
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$context->addViolation('should be a valid hostname'); |
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} |
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} elseif ($schema->format === 'ipv4') { |
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if (!filter_var($instance, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4)) { |
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$context->addViolation('should be a valid IPv4 address'); |
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} |
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} elseif ($schema->format === 'ipv6') { |
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if (!filter_var($instance, FILTER_VALIDATE_IP, FILTER_FLAG_IPV6)) { |
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$context->addViolation('should be a valid IPv6 address'); |
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} |
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} elseif ($schema->format === 'uri') { |
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if (!preg_match(self::URI_REGEX, $instance)) { |
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$context->addViolation('should be a valid URI (RFC3986)'); |
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} |
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} |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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private function isDateTimeValid($date, $format) |
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{ |
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$dateTime = DateTime::createFromFormat($format, $date); |
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if (!$dateTime) { |
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return false; |
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} |
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$errors = DateTime::getLastErrors(); |
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return $errors['warning_count'] === 0 && $errors['error_count'] === 0; |
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} |
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} |
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stefk /
JVal
