/**
* @see DataValue::parseUserValue
*
* @param string $value
*/
protected function parseUserValue($value)
{
if ($value === '') {
$this->addErrorMsg('smw_emptystring');
}
if (($this->getOptionBy('smwgDVFeatures') & SMW_DV_PVAP) == 0 && $value !== '') {
$this->addErrorMsg(array('smw-datavalue-feature-not-supported', 'Allows pattern (SMW_DV_PVAP)'));
}
$content = $this->allowsPatternContentParser->parse($value);
if (!$content) {
$this->addErrorMsg(array('smw-datavalue-allows-pattern-reference-unknown', $value), Message::PARSE);
}
parent::parseUserValue($value);
}
/**
* @since 2.4
*
* {@inheritDoc}
*/
public function validate($dataValue)
{
$this->hasConstraintViolation = false;
if (!$dataValue instanceof DataValue || $dataValue->getProperty() === null || !$dataValue->isEnabledFeature(SMW_DV_PVAP)) {
return $this->hasConstraintViolation;
}
if (($reference = ApplicationFactory::getInstance()->getPropertySpecificationLookup()->getAllowedPatternBy($dataValue->getProperty())) === '') {
return $this->hasConstraintViolation;
}
$content = $this->allowsPatternContentParser->parse($reference);
if (!$content) {
return $this->hasConstraintViolation;
}
// Prevent a possible remote code execution vulnerability in connection
// with PCRE
$pattern = str_replace(array('/e'), array(''), trim($content));
$this->doPregMatch($pattern, $dataValue, $reference);
}