server.php

Bug tracker, and reporter.

     * @param mixed $class
     * @return void
     */
    public function setPersistence($class = null)
    {
    }

    /**
     * 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($class)) {
            if (!class_exists($class)) {
                throw new Zend_XmlRpc_Server_Exception('Invalid method class', 610);
            }
        }

        $argv = null;
        if (3 < func_num_args()) {
            $argv = func_get_args();
            $argv = array_slice($argv, 3);
        }

        $this->_methods[] = Zend_Server_Reflection::reflectClass($class, $argv, $namespace);
        $this->_buildDispatchTable();
    }

    /**
     * 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) {
                throw new Zend_XmlRpc_Server_Exception('Invalid request class');
            }
            $request->setEncoding($this->getEncoding());
        } elseif (!$request instanceof Zend_XmlRpc_Request) {
            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;
    }

    /**
     * Raise an xmlrpc server fault
     *
     * @param string|Exception $fault
     * @param int $code
     * @return Zend_XmlRpc_Server_Fault
     */
    public function fault($fault, $code = 404)
    {
        if (!$fault instanceof Exception) {
            $fault = (string) $fault;
            $fault = new Zend_XmlRpc_Server_Exception($fault, $code);
        }

        return Zend_XmlRpc_Server_Fault::getInstance($fault);
    }

    /**
     * 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 (!isset($this->_table[$method])) {
            throw new Zend_XmlRpc_Server_Exception('Method "' . $method . '" does not exist', 620);
        }

        $info     = $this->_table[$method];
        $params   = $request->getParams();
        $argv     = $info->getInvokeArguments();
        if (0 < count($argv)) {
            $params = array_merge($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();
            $tmpParams = array();
            foreach ($sigParams as $param) {
                $tmpParams[] = $param->getType();
            }
            if ($sigCalled === $tmpParams) {
                $matched = true;
                break;
            }
        }
        if (!$matched) {
            throw new Zend_XmlRpc_Server_Exception('Calling parameters do not match signature', 623);
        }

        if ($info instanceof Zend_Server_Reflection_Function) {
            $func = $info->getName();
            $return = call_user_func_array($func, $params);
        } elseif (($info instanceof Zend_Server_Reflection_Method) && $info->system) {
            // System methods
            $return = $info->invokeArgs($this, $params);
        } elseif ($info instanceof Zend_Server_Reflection_Method) {
            // Get class
            $class = $info->getDeclaringClass()->getName();

            if ('static' == $info->isStatic()) {
                // for some reason, invokeArgs() does not work the same as
                // invoke(), and expects the first argument to be an object.
                // So, using a callback if the method is static.
                $return = call_user_func_array(array($class, $info->getName()), $params);
            } else {
                // Object methods
                try {
                    $object = $info->getDeclaringClass()->newInstance();
                } catch (Exception $e) {
                    throw new Zend_XmlRpc_Server_Exception('Error instantiating class ' . $class . ' to invoke method ' . $info->getName(), 621);
                }

                $return = $info->invokeArgs($object, $params);
            }
        } else {
            throw new Zend_XmlRpc_Server_Exception('Method missing implementation ' . get_class($info), 622);
        }

        $response = new ReflectionClass($this->_responseClass);
        return $response->newInstance($return);
    }

    /**
     * Handle an xmlrpc call
     *
     * @param Zend_XmlRpc_Request $request Optional
     * @return Zend_XmlRpc_Response|Zend_XmlRpc_Fault
     */
    public function handle(Zend_XmlRpc_Request $request = null)
    {
        // Get request
        if ((null === $request) && (null === ($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;
    }

    /**
     * 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)) {
            $reflection = new ReflectionClass($class);
            if ($reflection->isSubclassOf(new ReflectionClass('Zend_XmlRpc_Response'))) {
                $this->_responseClass = $class;
                return true;
            }
        }

        return false;
    }

    /**
     * Returns a list of registered methods
     *
     * Returns an array of dispatchables (Zend_Server_Reflection_Function,
     * _Method, and _Class items).
     *
     * @return array
     */
    public function getFunctions()
    {
        $return = array();
        foreach ($this->_methods as $method) {
            if ($method instanceof Zend_Server_Reflection_Class
                && ($method->system))
            {
                continue;
            }

            $return[] = $method;
        }

        return $return;
    }

    /**
     * List all available XMLRPC methods
     *
     * Returns an array of methods.
     *
     * @return array
     */
    public function listMethods()
    {
        return array_keys($this->_table);
    }

    /**
     * Display help message for an XMLRPC method
     *
     * @param string $method
     * @return string
     */
    public function methodHelp($method)
    {
        if (!isset($this->_table[$method])) {
            throw new Zend_Server_Exception('Method "' . $method . '"does not exist', 640);
        }

        return $this->_table[$method]->getDescription();
    }

    /**
     * Return a method signature
     *
     * @param string $method
     * @return array
     */
    public function methodSignature($method)
    {
        if (!isset($this->_table[$method])) {
            throw new Zend_Server_Exception('Method "' . $method . '"does not exist', 640);
        }
        $prototypes = $this->_table[$method]->getPrototypes();

        $signatures = array();
        foreach ($prototypes as $prototype) {
            $signature = array($prototype->getReturnType());
            foreach ($prototype->getParameters() as $parameter) {
                $signature[] = $parameter->getType();
            }
            $signatures[] = $signature;
        }

        return $signatures;
    }

    /**
     * Multicall - boxcar feature of XML-RPC for calling multiple methods
     * in a single request.
     *
     * Expects a an array of structs representing method calls, each element
     * having the keys:
     * - methodName
     * - params
     *
     * Returns an array of responses, one for each method called, with the value
     * returned by the method. If an error occurs for a given method, returns a
     * struct with a fault response.
     *
     * @see http://www.xmlrpc.com/discuss/msgReader$1208
     * @param  array $methods
     * @return array
     */
    public function multicall($methods)
    {
        $responses = array();
        foreach ($methods as $method) {
            $fault = false;
            if (!is_array($method)) {
                $fault = $this->fault('system.multicall expects each method to be a struct', 601);
            } elseif (!isset($method['methodName'])) {
                $fault = $this->fault('Missing methodName', 602);
            } elseif (!isset($method['params'])) {
                $fault = $this->fault('Missing params', 603);
            } elseif (!is_array($method['params'])) {
                $fault = $this->fault('Params must be an array', 604);
            } else {
                if ('system.multicall' == $method['methodName']) {
                    // don't allow recursive calls to multicall
                    $fault = $this->fault('Recursive system.multicall forbidden', 605);
                }
            }

            if (!$fault) {
                try {
                    $request = new Zend_XmlRpc_Request();
                    $request->setMethod($method['methodName']);
                    $request->setParams($method['params']);
                    $response = $this->_handle($request);
                    $responses[] = $response->getReturnValue();
                } catch (Exception $e) {
                    $fault = $this->fault($e);
                }
            }

            if ($fault) {
                $responses[] = array(
                    'faultCode'   => $fault->getCode(),
                    'faultString' => $fault->getMessage()
                );
            }
        }

        return $responses;
    }
}