/**
* to check whether the resource represented by the $resourceBox has any
* BLOB associated with it, which is to be saved using HTTP PUT.
* HTTP PUT will be used to save a BLOB when the assoicated MLE (resource)
* is already exists in the OData service, which means state of the resource
* will be unchanged or modified.
*
* @param ResourceBox $resourceBox
* @Return HttpRequest
* @throws InvalidOperation
*/
protected function CheckAndProcessMediaEntryPut($resourceBox)
{
if ($resourceBox->SaveStream == null) {
return null;
}
$editMediaResourceUri = $resourceBox->GetEditMediaResourceUri($this->_context->GetBaseUriWithSlash());
if ($editMediaResourceUri == null) {
throw new InvalidOperation(Resource::SetSaveStreamWithoutEditMediaLink);
}
//Hack: If we are using Windows Auth, with PUT operation, then Curl will throw the error
//"necessary data rewind wasn't possible in ..", so fix is use POST Tunneling for this
//request and after creating the request reset it to default value.
$usePostTuneling = $this->_context->UsePostTunneling;
$this->_context->UsePostTunneling = true;
$mediaResourceRequest = $this->CreateMediaResourceRequest($editMediaResourceUri, HttpVerb::PUT);
$this->_context->UsePostTunneling = $usePostTuneling;
$this->SetupMediaResourceRequest($mediaResourceRequest, $resourceBox);
//TODO: Add E-Tag
return $mediaResourceRequest;
}
