/**
* This method verfiy the client provided url query parameters and check whether
* any of the odata query option specified more than once or check any of the
* non-odata query parameter start will $ symbol or check any of the odata query
* option specified with out value. If any of the above check fails throws
* ODataException, else set _queryOptions memeber variable
*
* @return void
*
* @throws ODataException
*/
public function validateQueryParameters()
{
$queryOptions =& $this->_operationContext->incomingRequest()->getQueryParameters();
reset($queryOptions);
// Check whether user specified $format query option
while ($queryOption = current($queryOptions)) {
$optionName = key($queryOption);
$optionValue = current($queryOption);
if (!empty($optionName) && $optionName === ODataConstants::HTTPQUERY_STRING_FORMAT) {
//$optionValue is the format
if (!is_null($optionValue)) {
if ($optionValue === ODataConstants::FORMAT_ATOM) {
$this->setRequestAccept(ODataConstants::MIME_APPLICATION_ATOM . ';q=1.0');
} else {
if ($optionValue === ODataConstants::FORMAT_JSON) {
$this->setRequestAccept(ODataConstants::MIME_APPLICATION_JSON . ';q=1.0');
} else {
// Invalid format value, this error should not be
// serialized in atom or json format since we don't
// know which format client can understand, so error
// will be in plain text.
header(ODataConstants::HTTPRESPONSE_HEADER_CONTENTTYPE . ':' . ODataConstants::MIME_TEXTPLAIN);
header(ODataConstants::HTTPRESPONSE_HEADER_STATUS . ':' . HttpStatus::CODE_BAD_REQUEST . ' ' . 'Bad Request');
echo Messages::queryProcessorInvalidValueForFormat();
exit;
}
}
}
break;
}
next($queryOptions);
}
reset($queryOptions);
$namesFound = array();
while ($queryOption = current($queryOptions)) {
$optionName = key($queryOption);
$optionValue = current($queryOption);
if (empty($optionName)) {
if (!empty($optionValue)) {
if ($optionValue[0] == '$') {
if ($this->_isODataQueryOption($optionValue)) {
ODataException::createBadRequestError(Messages::dataServiceHostODataQueryOptionFoundWithoutValue($optionValue));
} else {
ODataException::createBadRequestError(Messages::dataServiceHostNonODataOptionBeginsWithSystemCharacter($optionValue));
}
}
}
} else {
if ($optionName[0] == '$') {
if (!$this->_isODataQueryOption($optionName)) {
ODataException::createBadRequestError(Messages::dataServiceHostNonODataOptionBeginsWithSystemCharacter($optionName));
}
if (array_search($optionName, $namesFound) !== false) {
ODataException::createBadRequestError(Messages::dataServiceHostODataQueryOptionCannotBeSpecifiedMoreThanOnce($optionName));
}
if (empty($optionValue)) {
ODataException::createBadRequestError(Messages::dataServiceHostODataQueryOptionFoundWithoutValue($optionName));
}
$namesFound[] = $optionName;
}
}
next($queryOptions);
}
$this->_queryOptions = $queryOptions;
}
