/**
* Decode a request from XML and construct a request object with the createFromDecoded values
*
* @param SimpleXMLElement The encoded XML-RPC request.
* @return XML_RPC2_Backend_Php_Request The xml-rpc request, represented as an object instance
*/
public static function createFromDecode($simpleXML)
{
$methodName = (string) $simpleXML->methodName;
$params = array();
foreach ($simpleXML->params->param as $param) {
foreach ($param->value as $value) {
$params[] = XML_RPC2_Backend_Php_Value::createFromDecode($value)->getNativeValue();
}
}
$result = new XML_RPC2_Backend_Php_Request($methodName);
$result->setParameters($params);
return $result;
}
/**
* Create a XML_RPC2_FaultException by decoding the corresponding xml string
*
* @param string $xml
* @return object a XML_RPC2_FaultException
*/
public static function createFromDecode($xml)
{
require_once 'XML/RPC2/Backend/Php/Value.php';
// This is the only way I know of creating a new Document rooted in the provided simpleXMLFragment (needed for the xpath expressions that does not segfault sometimes
$xml = simplexml_load_string($xml->asXML());
$struct = XML_RPC2_Backend_Php_Value::createFromDecode($xml->value)->getNativeValue();
if (!(is_array($struct) && array_key_exists('faultString', $struct) && array_key_exists('faultCode', $struct))) {
throw new XML_RPC2_DecodeException('Unable to decode XML-RPC fault payload');
}
return new XML_RPC2_FaultException($struct['faultString'], $struct['faultCode']);
}
/**
* Parse a response and either return the native PHP result.
*
* This method receives an XML-RPC response document, in SimpleXML format, decodes it and returns the payload value.
*
* @param SimpleXmlElement $xml The Transport XML
* @return mixed The response payload
*
* @see http://www.xmlrpc.com/spec
* @throws XML_RPC2_FaultException Signals the decoded response was an XML-RPC fault
* @throws XML_RPC2_DecodeException Signals an ill formed payload response section
*/
public static function decode(SimpleXMLElement $xml)
{
$faultNode = $xml->xpath('/methodResponse/fault');
if (count($faultNode) == 1) {
throw XML_RPC2_FaultException::createFromDecode($faultNode[0]);
}
$paramValueNode = $xml->xpath('/methodResponse/params/param/value');
if (count($paramValueNode) == 1) {
return XML_RPC2_Backend_Php_Value::createFromDecode($paramValueNode[0])->getNativeValue();
}
throw new XML_RPC2_DecodeException('Unable to decode xml-rpc response. No fault nor params/param elements found');
}
/**
* Decode transport XML and set the instance value accordingly
*
* @param mixed The encoded XML-RPC value,
*/
public static function decode($xml)
{
// TODO Remove reparsing of XML fragment, when SimpleXML proves more solid. Currently it segfaults when
// xpath is used both in an element and in one of its children
$xml = simplexml_load_string($xml->asXML());
$values = $xml->xpath('/value/struct/member');
$result = array();
foreach (array_keys($values) as $i) {
$result[(string) $values[$i]->name] = XML_RPC2_Backend_Php_Value::createFromDecode($values[$i]->value)->getNativeValue();
}
return $result;
}
