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<?php
/**
* Zend Framework
*
* LICENSE
*
* This source file is subject to the new BSD license that is bundled
* with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://framework.zend.com/license/new-bsd
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to license@zend.com so we can send you a copy immediately.
*
* @category Zend
* @package Zend_XmlRpc
* @subpackage Server
* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
* @version $Id: Server.php 17786 2009-08-23 22:26:33Z lars $
*/
/**
* Extends Zend_Server_Abstract
*/
require_once 'Zend/Server/Abstract.php';
/**
* XMLRPC Request
*/
require_once 'Zend/XmlRpc/Request.php';
/**
* XMLRPC Response
*/
require_once 'Zend/XmlRpc/Response.php';
/**
* XMLRPC HTTP Response
*/
require_once 'Zend/XmlRpc/Response/Http.php';
/**
* XMLRPC server fault class
*/
require_once 'Zend/XmlRpc/Server/Fault.php';
/**
* XMLRPC server system methods class
*/
require_once 'Zend/XmlRpc/Server/System.php';
/**
* Convert PHP to and from xmlrpc native types
*/
require_once 'Zend/XmlRpc/Value.php';
/**
* Reflection API for function/method introspection
*/
require_once 'Zend/Server/Reflection.php';
/**
* Zend_Server_Reflection_Function_Abstract
*/
require_once 'Zend/Server/Reflection/Function/Abstract.php';
/**
* Specifically grab the Zend_Server_Reflection_Method for manually setting up
* system.* methods and handling callbacks in {@link loadFunctions()}.
*/
require_once 'Zend/Server/Reflection/Method.php';
/**
* An XML-RPC server implementation
*
* Example:
* <code>
* require_once 'Zend/XmlRpc/Server.php';
* require_once 'Zend/XmlRpc/Server/Cache.php';
* require_once 'Zend/XmlRpc/Server/Fault.php';
* require_once 'My/Exception.php';
* require_once 'My/Fault/Observer.php';
*
* // Instantiate server
* $server = new Zend_XmlRpc_Server();
*
* // Allow some exceptions to report as fault responses:
* Zend_XmlRpc_Server_Fault::attachFaultException('My_Exception');
* Zend_XmlRpc_Server_Fault::attachObserver('My_Fault_Observer');
*
* // Get or build dispatch table:
* if (!Zend_XmlRpc_Server_Cache::get($filename, $server)) {
* require_once 'Some/Service/Class.php';
* require_once 'Another/Service/Class.php';
*
* // Attach Some_Service_Class in 'some' namespace
* $server->setClass('Some_Service_Class', 'some');
*
* // Attach Another_Service_Class in 'another' namespace
* $server->setClass('Another_Service_Class', 'another');
*
* // Create dispatch table cache file
* Zend_XmlRpc_Server_Cache::save($filename, $server);
* }
*
* $response = $server->handle();
* echo $response;
* </code>
*
* @category Zend
* @package Zend_XmlRpc
* @subpackage Server
* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
class Zend_XmlRpc_Server extends Zend_Server_Abstract
{
/**
* Character encoding
* @var string
*/
protected $_encoding = 'UTF-8';
/**
* Request processed
* @var null|Zend_XmlRpc_Request
*/
protected $_request = null;
/**
* Class to use for responses; defaults to {@link Zend_XmlRpc_Response_Http}
* @var string
*/
protected $_responseClass = 'Zend_XmlRpc_Response_Http';
/**
* Dispatch table of name => method pairs
* @var Zend_Server_Definition
*/
protected $_table;
/**
* PHP types => XML-RPC types
* @var array
*/
protected $_typeMap = array(
'i4' => 'i4',
'int' => 'int',
'integer' => 'int',
'double' => 'double',
'float' => 'double',
'real' => 'double',
'boolean' => 'boolean',
'bool' => 'boolean',
'true' => 'boolean',
'false' => 'boolean',
'string' => 'string',
'str' => 'string',
'base64' => 'base64',
'dateTime.iso8601' => 'dateTime.iso8601',
'date' => 'dateTime.iso8601',
'time' => 'dateTime.iso8601',
'time' => 'dateTime.iso8601',
'array' => 'array',
'struct' => 'struct',
'null' => 'nil',
'nil' => 'nil',
'void' => 'void',
'mixed' => 'struct'
);
/**
* Send arguments to all methods or just constructor?
*
* @var bool
*/
protected $_sendArgumentsToAllMethods = true;
/**
* Constructor
*
* Creates system.* methods.
*
* @return void
*/
public function __construct()
{
$this->_table = new Zend_Server_Definition();
$this->_registerSystemMethods();
}
/**
* Proxy calls to system object
*
* @param string $method
* @param array $params
* @return mixed
* @throws Zend_XmlRpc_Server_Exception
*/
public function __call($method, $params)
{
$system = $this->getSystem();
if (!method_exists($system, $method)) {
require_once 'Zend/XmlRpc/Server/Exception.php';
throw new Zend_XmlRpc_Server_Exception('Unknown instance method called on server: ' . $method);
}
return call_user_func_array(array($system, $method), $params);
}
/**
* Attach a callback as an XMLRPC method
*
* Attaches a callback as an XMLRPC method, prefixing the XMLRPC method name
* with $namespace, if provided. Reflection is done on the callback's
* docblock to create the methodHelp for the XMLRPC method.
*
* Additional arguments to pass to the function at dispatch may be passed;
* any arguments following the namespace will be aggregated and passed at
* dispatch time.
*
* @param string|array $function Valid callback
* @param string $namespace Optional namespace prefix
* @return void
* @throws Zend_XmlRpc_Server_Exception
*/
public function addFunction($function, $namespace = '')
{
if (!is_string($function) && !is_array($function)) {
require_once 'Zend/XmlRpc/Server/Exception.php';
throw new Zend_XmlRpc_Server_Exception('Unable to attach function; invalid', 611);
}
$argv = null;
if (2 < func_num_args()) {
$argv = func_get_args();
$argv = array_slice($argv, 2);
}
$function = (array) $function;
foreach ($function as $func) {
if (!is_string($func) || !function_exists($func)) {
require_once 'Zend/XmlRpc/Server/Exception.php';
throw new Zend_XmlRpc_Server_Exception('Unable to attach function; invalid', 611);
}
$reflection = Zend_Server_Reflection::reflectFunction($func, $argv, $namespace);
$this->_buildSignature($reflection);
}
}
/**
* Attach class methods as XMLRPC method handlers
*
* $class may be either a class name or an object. Reflection is done on the
* class or object to determine the available public methods, and each is
* attached to the server as an available method; if a $namespace has been
* provided, that namespace is used to prefix the XMLRPC method names.
*
* Any additional arguments beyond $namespace will be passed to a method at
* invocation.
*
* @param string|object $class
* @param string $namespace Optional
* @param mixed $argv Optional arguments to pass to methods
* @return void
* @throws Zend_XmlRpc_Server_Exception on invalid input
*/
public function setClass($class, $namespace = '', $argv = null)
{
if (is_string($class) && !class_exists($class)) {
require_once 'Zend/XmlRpc/Server/Exception.php';
throw new Zend_XmlRpc_Server_Exception('Invalid method class', 610);
}
$argv = null;
if (2 < func_num_args()) {
$argv = func_get_args();
$argv = array_slice($argv, 2);
}
$dispatchable = Zend_Server_Reflection::reflectClass($class, $argv, $namespace);
foreach ($dispatchable->getMethods() as $reflection) {
$this->_buildSignature($reflection, $class);
}
}
/**
* Raise an xmlrpc server fault
*
* @param string|Exception $fault
* @param int $code
* @return Zend_XmlRpc_Server_Fault
*/
public function fault($fault = null, $code = 404)
{
if (!$fault instanceof Exception) {
$fault = (string) $fault;
if (empty($fault)) {
$fault = 'Unknown Error';
}
require_once 'Zend/XmlRpc/Server/Exception.php';
$fault = new Zend_XmlRpc_Server_Exception($fault, $code);
}
return Zend_XmlRpc_Server_Fault::getInstance($fault);
}
/**
* Handle an xmlrpc call
*
* @param Zend_XmlRpc_Request $request Optional
* @return Zend_XmlRpc_Response|Zend_XmlRpc_Fault
*/
public function handle($request = false)
{
// Get request
if ((!$request || !$request instanceof Zend_XmlRpc_Request)
&& (null === ($request = $this->getRequest()))
) {
require_once 'Zend/XmlRpc/Request/Http.php';
$request = new Zend_XmlRpc_Request_Http();
$request->setEncoding($this->getEncoding());
}
$this->setRequest($request);
if ($request->isFault()) {
$response = $request->getFault();
} else {
try {
$response = $this->_handle($request);
} catch (Exception $e) {
$response = $this->fault($e);
}
}
// Set output encoding
$response->setEncoding($this->getEncoding());
return $response;
}
/**
* Load methods as returned from {@link getFunctions}
*
* Typically, you will not use this method; it will be called using the
* results pulled from {@link Zend_XmlRpc_Server_Cache::get()}.
*
* @param array|Zend_Server_Definition $definition
* @return void
* @throws Zend_XmlRpc_Server_Exception on invalid input
*/
public function loadFunctions($definition)
{
if (!is_array($definition) && (!$definition instanceof Zend_Server_Definition)) {
if (is_object($definition)) {
$type = get_class($definition);
} else {
$type = gettype($definition);
}
require_once 'Zend/XmlRpc/Server/Exception.php';
throw new Zend_XmlRpc_Server_Exception('Unable to load server definition; must be an array or Zend_Server_Definition, received ' . $type, 612);
}
$this->_table->clearMethods();
$this->_registerSystemMethods();
if ($definition instanceof Zend_Server_Definition) {
$definition = $definition->getMethods();
}
foreach ($definition as $key => $method) {
if ('system.' == substr($key, 0, 7)) {
continue;
}
$this->_table->addMethod($method, $key);
}
}
/**
* Set encoding
*
* @param string $encoding
* @return Zend_XmlRpc_Server
*/
public function setEncoding($encoding)
{
$this->_encoding = $encoding;
return $this;
}
/**
* Retrieve current encoding
*
* @return string
*/
public function getEncoding()
{
return $this->_encoding;
}
/**
* Do nothing; persistence is handled via {@link Zend_XmlRpc_Server_Cache}
*
* @param mixed $mode
* @return void
*/
public function setPersistence($mode)
{
}
/**
* Set the request object
*
* @param string|Zend_XmlRpc_Request $request
* @return Zend_XmlRpc_Server
* @throws Zend_XmlRpc_Server_Exception on invalid request class or object
*/
public function setRequest($request)
{
if (is_string($request) && class_exists($request)) {
$request = new $request();
if (!$request instanceof Zend_XmlRpc_Request) {
require_once 'Zend/XmlRpc/Server/Exception.php';
throw new Zend_XmlRpc_Server_Exception('Invalid request class');
}
$request->setEncoding($this->getEncoding());
} elseif (!$request instanceof Zend_XmlRpc_Request) {
require_once 'Zend/XmlRpc/Server/Exception.php';
throw new Zend_XmlRpc_Server_Exception('Invalid request object');
}
$this->_request = $request;
return $this;
}
/**
* Return currently registered request object
*
* @return null|Zend_XmlRpc_Request
*/
public function getRequest()
{
return $this->_request;
}
/**
* Set the class to use for the response
*
* @param string $class
* @return boolean True if class was set, false if not
*/
public function setResponseClass($class)
{
if (!class_exists($class) or
($c = new ReflectionClass($class) and !$c->isSubclassOf('Zend_XmlRpc_Response'))) {
require_once 'Zend/XmlRpc/Server/Exception.php';
throw new Zend_XmlRpc_Server_Exception('Invalid response class');
}
$this->_responseClass = $class;
return true;
}
/**
* Retrieve current response class
*
* @return string
*/
public function getResponseClass()
{
return $this->_responseClass;
}
/**
* Retrieve dispatch table
*
* @return array
*/
public function getDispatchTable()
{
return $this->_table;
}
/**
* Returns a list of registered methods
*
* Returns an array of dispatchables (Zend_Server_Reflection_Function,
* _Method, and _Class items).
*
* @return array
*/
public function getFunctions()
{
return $this->_table->toArray();
}
/**
* Retrieve system object
*
* @return Zend_XmlRpc_Server_System
*/
public function getSystem()
{
return $this->_system;
}
/**
* Send arguments to all methods?
*
* If setClass() is used to add classes to the server, this flag defined
* how to handle arguments. If set to true, all methods including constructor
* will receive the arguments. If set to false, only constructor will receive the
* arguments
*/
public function sendArgumentsToAllMethods($flag = null)
{
if ($flag === null) {
return $this->_sendArgumentsToAllMethods;
}
$this->_sendArgumentsToAllMethods = (bool)$flag;
return $this;
}
/**
* Map PHP type to XML-RPC type
*
* @param string $type
* @return string
*/
protected function _fixType($type)
{
if (isset($this->_typeMap[$type])) {
return $this->_typeMap[$type];
}
return 'void';
}
/**
* Handle an xmlrpc call (actual work)
*
* @param Zend_XmlRpc_Request $request
* @return Zend_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(Zend_XmlRpc_Request $request)
{
$method = $request->getMethod();
// Check for valid method
if (!$this->_table->hasMethod($method)) {
require_once 'Zend/XmlRpc/Server/Exception.php';
throw new Zend_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) {
$xmlRpcValue = Zend_XmlRpc_Value::getXmlRpcValue($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 'Zend/XmlRpc/Server/Exception.php';
throw new Zend_XmlRpc_Server_Exception('Calling parameters do not match signature', 623);
}
$return = $this->_dispatch($info, $params);
$responseClass = $this->getResponseClass();
return new $responseClass($return);
}
/**
* Register system methods with the server
*
* @return void
*/
protected function _registerSystemMethods()
{
$system = new Zend_XmlRpc_Server_System($this);
$this->_system = $system;
$this->setClass($system, 'system');
}
}
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