/**
* Handle an xmlrpc call (actual work)
*
* @param Polycast_XmlRpc_Request $request
* @return Polycast_XmlRpc_Response
* @throws Zend_XmlRpcServer_Exception|Exception
* Zend_XmlRpcServer_Exceptions are thrown for internal errors; otherwise,
* any other exception may be thrown by the callback
*/
protected function _handle(Polycast_XmlRpc_Request $request)
{
$method = $request->getMethod();
// Check for valid method
if (!$this->_table->hasMethod($method)) {
require_once 'Polycast/XmlRpc/Server/Exception.php';
throw new Polycast_XmlRpc_Server_Exception('Method "' . $method . '" does not exist', 620);
}
$info = $this->_table->getMethod($method);
$params = $request->getParams();
$argv = $info->getInvokeArguments();
if (0 < count($argv) and $this->sendArgumentsToAllMethods()) {
$params = array_merge($params, $argv);
}
// Check calling parameters against signatures
$matched = false;
$sigCalled = $request->getTypes();
$sigLength = count($sigCalled);
$paramsLen = count($params);
if ($sigLength < $paramsLen) {
for ($i = $sigLength; $i < $paramsLen; ++$i) {
$xmlRpcValue = Polycast_XmlRpc_Value::getXmlRpcValue($params[$i]);
$sigCalled[] = $xmlRpcValue->getType();
}
}
$signatures = $info->getPrototypes();
foreach ($signatures as $signature) {
$sigParams = $signature->getParameters();
if ($sigCalled === $sigParams) {
$matched = true;
break;
}
}
if (!$matched) {
require_once 'Polycast/XmlRpc/Server/Exception.php';
throw new Polycast_XmlRpc_Server_Exception('Calling parameters do not match signature', 623);
}
$return = $this->_dispatch($info, $params);
$responseClass = $this->getResponseClass();
return new $responseClass($return);
}
/**
* Get XML generator instance
*
* @return Polycast_XmlRpc_Generator_Abstract
*/
public static function getGenerator()
{
if (!self::$_generator) {
if (extension_loaded('xmlwriter')) {
require_once 'Polycast/XmlRpc/Generator/XmlWriter.php';
self::$_generator = new Polycast_XmlRpc_Generator_XmlWriter();
} else {
require_once 'Polycast/XmlRpc/Generator/DomDocument.php';
self::$_generator = new Polycast_XmlRpc_Generator_DomDocument();
}
}
return self::$_generator;
}
/**
* Create XML request
*
* @return string
*/
public function saveXML()
{
$args = $this->_getXmlRpcParams();
$method = $this->getMethod();
$generator = Polycast_XmlRpc_Value::getGenerator();
$element = new Polycast_XmlRpc_Generator_Element('methodCall', array(new Polycast_XmlRpc_Generator_Element('methodName', array($method))));
if (is_array($args) && count($args)) {
$params = new Polycast_XmlRpc_Generator_Element('params');
$element->appendChild($params);
foreach ($args as $arg) {
/* @var $arg Polycast_XmlRpc_Value */
$params->appendChild(new Polycast_XmlRpc_Generator_Element('param', array($arg)));
}
}
return $generator->generateXml($element);
}
/**
* Return response as XML
*
* @return string
*/
public function saveXML()
{
$generator = Polycast_XmlRpc_Value::getGenerator();
$element = new Polycast_XmlRpc_Generator_Element('methodResponse', array(new Polycast_XmlRpc_Generator_Element('params', array(new Polycast_XmlRpc_Generator_Element('param', array($this->_getXmlRpcReturn()))))));
return $generator->generateXml($element);
}
/**
* Send an XML-RPC request to the service (for a specific method)
*
* @param string $method Name of the method we want to call
* @param array $params Array of parameters for the method
* @return mixed
* @throws Polycast_XmlRpc_Client_FaultException
*/
public function call($method, $params = array())
{
if (!$this->skipSystemLookup() && 'system.' != substr($method, 0, 7)) {
// Ensure empty array/struct params are cast correctly
// If system.* methods are not available, bypass. (ZF-2978)
$success = true;
try {
$signatures = $this->getIntrospector()->getMethodSignature($method);
} catch (Polycast_XmlRpc_Exception $e) {
$success = false;
}
if ($success) {
$validTypes = array(Polycast_XmlRpc_Value::XMLRPC_TYPE_ARRAY, Polycast_XmlRpc_Value::XMLRPC_TYPE_BASE64, Polycast_XmlRpc_Value::XMLRPC_TYPE_BOOLEAN, Polycast_XmlRpc_Value::XMLRPC_TYPE_DATETIME, Polycast_XmlRpc_Value::XMLRPC_TYPE_DOUBLE, Polycast_XmlRpc_Value::XMLRPC_TYPE_I4, Polycast_XmlRpc_Value::XMLRPC_TYPE_INTEGER, Polycast_XmlRpc_Value::XMLRPC_TYPE_NIL, Polycast_XmlRpc_Value::XMLRPC_TYPE_STRING, Polycast_XmlRpc_Value::XMLRPC_TYPE_STRUCT);
$params = (array) $params;
foreach ($params as $key => $param) {
$type = Polycast_XmlRpc_Value::AUTO_DETECT_TYPE;
foreach ($signatures as $signature) {
if (!is_array($signature)) {
continue;
}
if (isset($signature['parameters'][$key])) {
$type = $signature['parameters'][$key];
$type = in_array($type, $validTypes) ? $type : Polycast_XmlRpc_Value::AUTO_DETECT_TYPE;
}
}
$params[$key] = Polycast_XmlRpc_Value::getXmlRpcValue($param, $type);
}
}
}
$request = $this->_createRequest($method, $params);
$this->doRequest($request);
if ($this->_lastResponse->isFault()) {
$fault = $this->_lastResponse->getFault();
/**
* Exception thrown when an XML-RPC fault is returned
* @see Polycast_XmlRpc_Client_FaultException
*/
require_once 'Polycast/XmlRpc/Client/FaultException.php';
throw new Polycast_XmlRpc_Client_FaultException($fault->getMessage(), $fault->getCode());
}
return $this->_lastResponse->getReturnValue();
}
/**
* Serialize fault to XML
*
* @return string
*/
public function saveXML()
{
$generator = Polycast_XmlRpc_Value::getGenerator();
$element = new Polycast_XmlRpc_Generator_Element('methodResponse', array(new Polycast_XmlRpc_Generator_Element('fault', array(new Polycast_XmlRpc_Generator_Element('faultCode', array($this->getCode())), new Polycast_XmlRpc_Generator_Element('faultString', array($this->getMessage()))))));
return $generator->generateXml($element);
}
