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<?php |
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/** |
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* Ripcord is an easy to use XML-RPC library for PHP. |
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* @package Ripcord |
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* @author Auke van Slooten <[email protected]> |
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* @copyright Copyright (C) 2010, Muze <www.muze.nl> |
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* @license http://opensource.org/licenses/gpl-3.0.html GNU Public License |
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* @version Ripcord 0.9 - PHP 5 |
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*/ |
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/** |
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* Includes the static ripcord factory class and exceptions |
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*/ |
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require_once(dirname(__FILE__).'/ripcord.php'); |
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/** |
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* This class implements a simple RPC client, for XML-RPC, (simplified) SOAP 1.1 or Simple RPC. The client abstracts |
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* the entire RPC process behind native PHP methods. Any method defined by the rpc server can be called as if it was |
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* a native method of the rpc client. |
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* |
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* E.g. |
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* <code> |
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* <?php |
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* $client = ripcord::client( 'http://www.moviemeter.nl/ws' ); |
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* $score = $client->film->getScore( 'e3dee9d19a8c3af7c92f9067d2945b59', 500 ); |
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* ?> |
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* </code> |
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* |
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* The client has a simple interface for the system.multiCall method: |
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* <code> |
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* <?php |
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* $client = ripcord::client( 'http://ripcord.muze.nl/ripcord.php' ); |
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* $client->system->multiCall()->start(); |
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* ripcord::bind( $methods, $client->system->listMethods() ); |
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* ripcord::bind( $foo, $client->getFoo() ); |
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* $client->system->multiCall()->execute(); |
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* ?> |
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* </code> |
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* |
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* The soap client can only handle the basic php types and doesn't understand xml namespaces. Use PHP's SoapClient |
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* for complex soap calls. This client cannot parse wsdl. |
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* If you want to skip the ripcord::client factory method, you _must_ provide a transport object explicitly. |
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* |
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* @link http://wiki.moviemeter.nl/index.php/API Moviemeter API documentation |
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* @package Ripcord |
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*/ |
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class Ripcord_Client |
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{ |
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/** |
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* The url of the rpc server |
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*/ |
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private $_url = ''; |
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/** |
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* The transport object, used to post requests. |
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*/ |
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private $_transport = null; |
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/** |
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* A list of output options, used with the xmlrpc_encode_request method. |
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* @see Ripcord_Server::setOutputOption() |
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*/ |
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private $_outputOptions = array( |
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"output_type" => "xml", |
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"verbosity" => "pretty", |
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"escaping" => array("markup"), |
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"version" => "xmlrpc", |
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"encoding" => "utf-8" |
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); |
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/** |
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* The namespace to use when calling a method. |
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*/ |
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private $_namespace = null; |
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/** |
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* A reference to the root client object. This is so when you use namespaced sub clients, you can always |
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* find the _response and _request data in the root client. |
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*/ |
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private $_rootClient = null; |
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/** |
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* A flag to indicate whether or not to preemptively clone objects passed as arguments to methods, see |
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* php bug #50282. Only correctly set in the rootClient. |
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*/ |
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private $_cloneObjects = false; |
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/** |
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* A flag to indicate if we are in a multiCall block. Start this with $client->system->multiCall()->start() |
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*/ |
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protected $_multiCall = false; |
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/** |
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* A list of deferred encoded calls. |
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*/ |
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protected $_multiCallArgs = array(); |
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/** |
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* The exact response from the rpc server. For debugging purposes. |
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*/ |
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public $_response = ''; |
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/** |
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* The exact request from the client. For debugging purposes. |
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*/ |
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public $_request = ''; |
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/** |
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* Whether or not to throw exceptions when an xml-rpc fault is returned by the server. Default is false. |
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*/ |
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public $_throwExceptions = false; |
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/** |
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* Whether or not to decode the XML-RPC datetime and base64 types to unix timestamp and binary string |
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* respectively. |
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*/ |
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public $_autoDecode = true; |
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/** |
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* The constructor for the RPC client. |
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* @param string $url The url of the rpc server |
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* @param array $options Optional. A list of outputOptions. See {@link Ripcord_Server::setOutputOption()} |
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* @param object $rootClient Optional. Used internally when using namespaces. |
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* @throws Ripcord_ConfigurationException (ripcord::xmlrpcNotInstalled) when the xmlrpc extension is not available. |
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*/ |
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public function __construct( $url, array $options = null, $transport = null, $rootClient = null ) |
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{ |
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if ( !isset($rootClient) ) { |
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$rootClient = $this; |
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if ( !function_exists( 'xmlrpc_encode_request' ) ) |
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{ |
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throw new Ripcord_ConfigurationException('PHP XMLRPC library is not installed', |
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ripcord::xmlrpcNotInstalled); |
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} |
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$version = explode('.', phpversion() ); |
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if ( (0 + $version[0]) == 5) { |
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if ( ( 0 + $version[1]) < 2 ) { |
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$this->_cloneObjects = true; // workaround for bug #50282 |
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} |
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} |
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} |
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$this->_rootClient = $rootClient; |
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$this->_url = $url; |
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if ( isset($options) ) |
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{ |
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if ( isset($options['namespace']) ) |
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{ |
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$this->_namespace = $options['namespace']; |
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unset( $options['namespace'] ); |
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} |
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$this->_outputOptions = $options; |
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} |
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if ( isset($transport) ) { |
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$this->_transport = $transport; |
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} |
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} |
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/** |
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* This method catches any native method called on the client and calls it on the rpc server instead. It automatically |
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* parses the resulting xml and returns native php type results. |
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* @throws Ripcord_InvalidArgumentException (ripcord::notRipcordCall) when handling a multiCall and the |
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* arguments passed do not have the correct method call information |
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* @throws Ripcord_RemoteException when _throwExceptions is true and the server returns an XML-RPC Fault. |
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*/ |
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public function __call($name, $args) |
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{ |
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if ( isset($this->_namespace) ) |
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{ |
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$name = $this->_namespace . '.' . $name; |
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} |
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if ( $name === 'system.multiCall' || $name == 'system.multicall' ) |
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{ |
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if ( !$args || ( is_array($args) && count($args)==0 ) ) |
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{ |
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// multiCall is called without arguments, so return the fetch interface object |
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return new Ripcord_Client_MultiCall( $this->_rootClient, $name ); |
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} else if ( is_array( $args ) && (count( $args ) == 1) && |
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is_array( $args[0] ) && !isset( $args[0]['methodName'] ) ) |
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{ |
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// multicall is called with a simple array of calls. |
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$args = $args[0]; |
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} |
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$this->_rootClient->_multiCall = false; |
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$params = array(); |
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$bound = array(); |
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foreach ( $args as $key => $arg ) |
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{ |
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if ( !is_a( $arg, 'Ripcord_Client_Call' ) && |
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(!is_array($arg) || !isset($arg['methodName']) ) ) |
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{ |
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throw new Ripcord_InvalidArgumentException( |
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'Argument '.$key.' is not a valid Ripcord call', |
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ripcord::notRipcordCall); |
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} |
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if ( is_a( $arg, 'Ripcord_Client_Call' ) ) |
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{ |
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$arg->index = count( $params ); |
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$params[] = $arg->encode(); |
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} |
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else |
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{ |
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$arg['index'] = count( $params ); |
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$params[] = array( |
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'methodName' => $arg['methodName'], |
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'params' => isset($arg['params']) ? |
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(array) $arg['params'] : array() |
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); |
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} |
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$bound[$key] = $arg; |
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} |
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$args = array( $params ); |
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$this->_rootClient->_multiCallArgs = array(); |
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} |
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if ( $this->_rootClient->_multiCall ) { |
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$call = new Ripcord_Client_Call( $name, $args ); |
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$this->_rootClient->_multiCallArgs[] = $call; |
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return $call; |
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} |
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if ($this->_rootClient->_cloneObjects) { //workaround for php bug 50282 |
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foreach( $args as $key => $arg) { |
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if (is_object($arg)) { |
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$args[$key] = clone $arg; |
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} |
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} |
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} |
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$request = xmlrpc_encode_request( $name, $args, $this->_outputOptions ); |
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$response = $this->_transport->post( $this->_url, $request ); |
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$result = xmlrpc_decode( $response ); |
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$this->_rootClient->_request = $request; |
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$this->_rootClient->_response = $response; |
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if ( ripcord::isFault( $result ) && $this->_throwExceptions ) |
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{ |
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throw new Ripcord_RemoteException($result['faultString'], $result['faultCode']); |
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} |
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if ( isset($bound) && is_array( $bound ) ) |
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{ |
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foreach ( $bound as $key => $callObject ) |
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{ |
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if ( is_a( $callObject, 'Ripcord_Client_Call' ) ) |
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{ |
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$returnValue = $result[$callObject->index]; |
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} |
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else |
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{ |
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$returnValue = $result[$callObject['index']]; |
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} |
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if ( is_array( $returnValue ) && count( $returnValue ) == 1 ) |
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{ |
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// XML-RPC specification says that non-fault results must be in a single item array |
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$returnValue = current($returnValue); |
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} |
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if ($this->_autoDecode) |
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{ |
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$type = xmlrpc_get_type($returnValue); |
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switch ($type) |
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{ |
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case 'base64' : |
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$returnValue = ripcord::binary($returnValue); |
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break; |
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case 'datetime' : |
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$returnValue = ripcord::timestamp($returnValue); |
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break; |
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} |
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} |
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if ( is_a( $callObject, 'Ripcord_Client_Call' ) ) { |
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$callObject->bound = $returnValue; |
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} |
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$bound[$key] = $returnValue; |
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} |
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$result = $bound; |
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} |
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return $result; |
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} |
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/** |
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* This method catches any reference to properties of the client and uses them as a namespace. The |
278
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* property is automatically created as a new instance of the rpc client, with the name of the property |
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* as a namespace. |
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* @param string $name The name of the namespace |
281
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* @return object A Ripcord Client with the given namespace set. |
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*/ |
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public function __get($name) |
284
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{ |
285
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$result = null; |
286
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if ( !isset($this->{$name}) ) |
287
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{ |
288
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$result = new Ripcord_Client( |
289
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$this->_url, |
290
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array_merge($this->_outputOptions, array( |
291
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'namespace' => $this->_namespace ? |
292
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$this->_namespace . '.' . $name : $name |
293
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) ), |
294
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$this->_transport, |
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$this->_rootClient |
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); |
297
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$this->{$name} = $result; |
298
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} |
299
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return $result; |
300
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} |
301
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} |
302
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303
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/** |
304
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* This class provides the fetch interface for system.multiCall. It is returned |
305
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* when calling $client->system->multiCall() with no arguments. Upon construction |
306
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* it puts the originating client into multiCall deferred mode. The client will |
307
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* gather the requested method calls instead of executing them immediately. It |
308
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* will them execute all of them, in order, when calling |
309
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* $client->system->multiCall()->fetch(). |
310
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* This class extends Ripcord_Client only so it has access to its protected _multiCall |
311
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* property. |
312
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*/ |
313
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class Ripcord_Client_MultiCall extends Ripcord_Client |
314
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{ |
315
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316
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/* |
317
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* The reference to the originating client to put into multiCall mode. |
318
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*/ |
319
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private $client = null; |
320
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|
321
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/* |
322
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* This method creates a new multiCall fetch api object. |
323
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*/ |
324
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public function __construct( $client, $methodName = 'system.multiCall' ) |
325
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{ |
326
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$this->client = $client; |
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$this->methodName = $methodName; |
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328
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} |
329
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|
330
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/* |
331
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* This method puts the client into multiCall mode. While in this mode all |
332
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* method calls are collected as deferred calls (Ripcord_Client_Call). |
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*/ |
334
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public function start() |
335
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{ |
336
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$this->client->_multiCall = true; |
337
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} |
338
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|
339
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/* |
340
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* This method finally calls the clients multiCall method with all deferred |
341
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* method calls since multiCall mode was enabled. |
342
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*/ |
343
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public function execute() |
344
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{ |
345
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if ($this->methodName=='system.multiCall') { |
346
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return $this->client->system->multiCall( $this->client->_multiCallArgs ); |
347
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} else { // system.multicall |
348
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return $this->client->system->multicall( $this->client->_multiCallArgs ); |
349
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} |
350
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} |
351
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352
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} |
353
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|
354
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/** |
355
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* This class is used with the Ripcord_Client when calling system.multiCall. Instead of immediately calling the method on the rpc server, |
356
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* a Ripcord_Client_Call object is created with all the information needed to call the method using the multicall parameters. The call object is |
357
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* returned immediately and is used as input parameter for the multiCall call. The result of the call can be bound to a php variable. This |
358
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* variable will be filled with the result of the call when it is available. |
359
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* @package Ripcord |
360
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*/ |
361
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class Ripcord_Client_Call |
362
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{ |
363
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/** |
364
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* The method to call on the rpc server |
365
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*/ |
366
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public $method = null; |
367
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|
368
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/** |
369
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* The arguments to pass on to the method. |
370
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*/ |
371
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public $params = array(); |
372
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|
373
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/** |
374
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* The index in the multicall request array, if any. |
375
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*/ |
376
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public $index = null; |
377
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|
378
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/** |
379
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* A reference to the php variable to fill with the result of the call, if any. |
380
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*/ |
381
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public $bound = null; |
382
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|
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|
383
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|
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/** |
384
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* The constructor for the Ripcord_Client_Call class. |
385
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* @param string $method The name of the rpc method to call |
386
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* @param array $params The parameters for the rpc method. |
387
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*/ |
388
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public function __construct($method, $params) |
389
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{ |
390
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$this->method = $method; |
391
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$this->params = $params; |
392
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} |
393
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|
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|
394
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/** |
395
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* This method allows you to bind a php variable to the result of this method call. |
396
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* When the method call's result is available, the php variable will be filled with |
397
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|
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* this result. |
398
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* @param mixed $bound The variable to bind the result from this call to. |
399
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* @return object Returns this object for chaining. |
400
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|
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*/ |
401
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public function bind(&$bound) |
402
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{ |
403
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|
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$this->bound =& $bound; |
404
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return $this; |
405
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} |
406
|
|
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|
407
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|
|
/** |
408
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* This method returns the correct format for a multiCall argument. |
409
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|
|
* @return array An array with the methodName and params |
410
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*/ |
411
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|
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public function encode() { |
412
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return array( |
413
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|
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'methodName' => $this->method, |
414
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|
|
'params' => (array) $this->params |
415
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|
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); |
416
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} |
417
|
|
|
|
418
|
|
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} |
419
|
|
|
|
420
|
|
|
/** |
421
|
|
|
* This interface describes the minimum interface needed for the transport object used by the |
422
|
|
|
* Ripcord_Client |
423
|
|
|
* @package Ripcord |
424
|
|
|
*/ |
425
|
|
|
interface Ripcord_Transport |
426
|
|
|
{ |
427
|
|
|
/** |
428
|
|
|
* This method must post the request to the given url and return the results. |
429
|
|
|
* @param string $url The url to post to. |
430
|
|
|
* @param string $request The request to post. |
431
|
|
|
* @return string The server response |
432
|
|
|
*/ |
433
|
|
|
public function post( $url, $request ); |
434
|
|
|
} |
435
|
|
|
|
436
|
|
|
/** |
437
|
|
|
* This class implements the Ripcord_Transport interface using PHP streams. |
438
|
|
|
* @package Ripcord |
439
|
|
|
*/ |
440
|
|
|
class Ripcord_Transport_Stream implements Ripcord_Transport |
441
|
|
|
{ |
442
|
|
|
/** |
443
|
|
|
* A list of stream context options. |
444
|
|
|
*/ |
445
|
|
|
private $options = array(); |
446
|
|
|
|
447
|
|
|
/** |
448
|
|
|
* Contains the headers sent by the server. |
449
|
|
|
*/ |
450
|
|
|
public $responseHeaders = null; |
451
|
|
|
|
452
|
|
|
/** |
453
|
|
|
* This is the constructor for the Ripcord_Transport_Stream class. |
454
|
|
|
* @param array $contextOptions Optional. An array with stream context options. |
455
|
|
|
*/ |
456
|
|
|
public function __construct( $contextOptions = null ) |
457
|
|
|
{ |
458
|
|
|
if ( isset($contextOptions) ) |
459
|
|
|
{ |
460
|
|
|
$this->options = $contextOptions; |
461
|
|
|
} |
462
|
|
|
} |
463
|
|
|
|
464
|
|
|
/** |
465
|
|
|
* This method posts the request to the given url. |
466
|
|
|
* @param string $url The url to post to. |
467
|
|
|
* @param string $request The request to post. |
468
|
|
|
* @return string The server response |
469
|
|
|
* @throws Ripcord_TransportException (ripcord::cannotAccessURL) when the given URL cannot be accessed for any reason. |
470
|
|
|
*/ |
471
|
|
|
public function post( $url, $request ) |
472
|
|
|
{ |
473
|
|
|
$options = array_merge( |
474
|
|
|
$this->options, |
475
|
|
|
array( |
476
|
|
|
'http' => array( |
477
|
|
|
'method' => "POST", |
478
|
|
|
'header' => "Content-Type: text/xml", |
479
|
|
|
'content' => $request |
480
|
|
|
) |
481
|
|
|
) |
482
|
|
|
); |
483
|
|
|
$context = stream_context_create( $options ); |
484
|
|
|
$result = @file_get_contents( $url, false, $context ); |
485
|
|
|
$this->responseHeaders = $http_response_header; |
486
|
|
|
if ( !$result ) |
487
|
|
|
{ |
488
|
|
|
throw new Ripcord_TransportException( 'Could not access ' . $url, |
489
|
|
|
ripcord::cannotAccessURL ); |
490
|
|
|
} |
491
|
|
|
return $result; |
492
|
|
|
} |
493
|
|
|
} |
494
|
|
|
|
495
|
|
|
/** |
496
|
|
|
* This class implements the Ripcord_Transport interface using CURL. |
497
|
|
|
* @package Ripcord |
498
|
|
|
*/ |
499
|
|
|
class Ripcord_Transport_CURL implements Ripcord_Transport |
500
|
|
|
{ |
501
|
|
|
/** |
502
|
|
|
* A list of CURL options. |
503
|
|
|
*/ |
504
|
|
|
private $options = array(); |
505
|
|
|
|
506
|
|
|
/** |
507
|
|
|
* A flag that indicates whether or not we can safely pass the previous exception to a new exception. |
508
|
|
|
*/ |
509
|
|
|
private $skipPreviousException = false; |
|
|
|
|
510
|
|
|
|
511
|
|
|
/** |
512
|
|
|
* Contains the headers sent by the server. |
513
|
|
|
*/ |
514
|
|
|
public $responseHeaders = null; |
515
|
|
|
|
516
|
|
|
/** |
517
|
|
|
* This is the constructor for the Ripcord_Transport_CURL class. |
518
|
|
|
* @param array $curlOptions A list of CURL options. |
519
|
|
|
*/ |
520
|
|
|
public function __construct( $curlOptions = null ) |
521
|
|
|
{ |
522
|
|
|
if ( isset($curlOptions) ) |
523
|
|
|
{ |
524
|
|
|
$this->options = $curlOptions; |
525
|
|
|
} |
526
|
|
|
$version = explode('.', phpversion() ); |
527
|
|
|
if ( ( (0 + $version[0]) == 5) && ( 0 + $version[1]) < 3 ) { // previousException supported in php >= 5.3 |
528
|
|
|
$this->_skipPreviousException = true; |
|
|
|
|
529
|
|
|
} |
530
|
|
|
} |
531
|
|
|
|
532
|
|
|
/** |
533
|
|
|
* This method posts the request to the given url |
534
|
|
|
* @param string $url The url to post to. |
535
|
|
|
* @param string $request The request to post. |
536
|
|
|
* @throws Ripcord_TransportException (ripcord::cannotAccessURL) when the given URL cannot be accessed for any reason. |
537
|
|
|
* @return string The server response |
538
|
|
|
*/ |
539
|
|
|
public function post( $url, $request) |
540
|
|
|
{ |
541
|
|
|
$curl = curl_init(); |
542
|
|
|
$options = (array) $this->options + array( |
543
|
|
|
CURLOPT_RETURNTRANSFER => 1, |
544
|
|
|
CURLOPT_URL => $url, |
545
|
|
|
CURLOPT_POST => true, |
546
|
|
|
CURLOPT_POSTFIELDS => $request, |
547
|
|
|
CURLOPT_HEADER => true |
548
|
|
|
); |
549
|
|
|
curl_setopt_array( $curl, $options ); |
550
|
|
|
$contents = curl_exec( $curl ); |
551
|
|
|
$headerSize = curl_getinfo( $curl, CURLINFO_HEADER_SIZE ); |
552
|
|
|
$this->responseHeaders = substr( $contents, 0, $headerSize ); |
553
|
|
|
$contents = substr( $contents, $headerSize ); |
554
|
|
|
|
555
|
|
|
if ( curl_errno( $curl ) ) |
556
|
|
|
{ |
557
|
|
|
$errorNumber = curl_errno( $curl ); |
558
|
|
|
$errorMessage = curl_error( $curl ); |
559
|
|
|
curl_close( $curl ); |
560
|
|
|
$version = explode('.', phpversion() ); |
|
|
|
|
561
|
|
|
if (!$this->_skipPreviousException) { // previousException supported in php >= 5.3 |
|
|
|
|
562
|
|
|
$exception = new Ripcord_TransportException( 'Could not access ' . $url |
563
|
|
|
, ripcord::cannotAccessURL |
564
|
|
|
, new Exception( $errorMessage, $errorNumber ) |
565
|
|
|
); |
566
|
|
|
} else { |
567
|
|
|
$exception = new Ripcord_TransportException( 'Could not access ' . $url |
568
|
|
|
. ' ( original CURL error: ' . $errorMessage . ' ) ', |
569
|
|
|
ripcord::cannotAccessURL |
570
|
|
|
); |
571
|
|
|
} |
572
|
|
|
throw $exception; |
573
|
|
|
} |
574
|
|
|
curl_close($curl); |
575
|
|
|
return $contents; |
576
|
|
|
} |
577
|
|
|
} |
578
|
|
|
|
In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code:
Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion: