--- /dev/null
+<?php
+
+/**
+ * IXR_Server
+ *
+ * @package IXR
+ * @since 1.5.0
+ */
+class IXR_Server
+{
+ var $data;
+ var $callbacks = array();
+ var $message;
+ var $capabilities;
+
+ /**
+ * PHP5 constructor.
+ */
+ function __construct( $callbacks = false, $data = false, $wait = false )
+ {
+ $this->setCapabilities();
+ if ($callbacks) {
+ $this->callbacks = $callbacks;
+ }
+ $this->setCallbacks();
+ if (!$wait) {
+ $this->serve($data);
+ }
+ }
+
+ /**
+ * PHP4 constructor.
+ */
+ public function IXR_Server( $callbacks = false, $data = false, $wait = false ) {
+ self::__construct( $callbacks, $data, $wait );
+ }
+
+ function serve($data = false)
+ {
+ if (!$data) {
+ if (isset($_SERVER['REQUEST_METHOD']) && $_SERVER['REQUEST_METHOD'] !== 'POST') {
+ if ( function_exists( 'status_header' ) ) {
+ status_header( 405 ); // WP #20986
+ header( 'Allow: POST' );
+ }
+ header('Content-Type: text/plain'); // merged from WP #9093
+ die('XML-RPC server accepts POST requests only.');
+ }
+
+ global $HTTP_RAW_POST_DATA;
+ if (empty($HTTP_RAW_POST_DATA)) {
+ // workaround for a bug in PHP 5.2.2 - http://bugs.php.net/bug.php?id=41293
+ $data = file_get_contents('php://input');
+ } else {
+ $data =& $HTTP_RAW_POST_DATA;
+ }
+ }
+ $this->message = new IXR_Message($data);
+ if (!$this->message->parse()) {
+ $this->error(-32700, 'parse error. not well formed');
+ }
+ if ($this->message->messageType != 'methodCall') {
+ $this->error(-32600, 'server error. invalid xml-rpc. not conforming to spec. Request must be a methodCall');
+ }
+ $result = $this->call($this->message->methodName, $this->message->params);
+
+ // Is the result an error?
+ if (is_a($result, 'IXR_Error')) {
+ $this->error($result);
+ }
+
+ // Encode the result
+ $r = new IXR_Value($result);
+ $resultxml = $r->getXml();
+
+ // Create the XML
+ $xml = <<<EOD
+<methodResponse>
+ <params>
+ <param>
+ <value>
+ $resultxml
+ </value>
+ </param>
+ </params>
+</methodResponse>
+
+EOD;
+ // Send it
+ $this->output($xml);
+ }
+
+ function call($methodname, $args)
+ {
+ if (!$this->hasMethod($methodname)) {
+ return new IXR_Error(-32601, 'server error. requested method '.$methodname.' does not exist.');
+ }
+ $method = $this->callbacks[$methodname];
+
+ // Perform the callback and send the response
+ if (count($args) == 1) {
+ // If only one parameter just send that instead of the whole array
+ $args = $args[0];
+ }
+
+ // Are we dealing with a function or a method?
+ if (is_string($method) && substr($method, 0, 5) == 'this:') {
+ // It's a class method - check it exists
+ $method = substr($method, 5);
+ if (!method_exists($this, $method)) {
+ return new IXR_Error(-32601, 'server error. requested class method "'.$method.'" does not exist.');
+ }
+
+ //Call the method
+ $result = $this->$method($args);
+ } else {
+ // It's a function - does it exist?
+ if (is_array($method)) {
+ if (!is_callable(array($method[0], $method[1]))) {
+ return new IXR_Error(-32601, 'server error. requested object method "'.$method[1].'" does not exist.');
+ }
+ } else if (!function_exists($method)) {
+ return new IXR_Error(-32601, 'server error. requested function "'.$method.'" does not exist.');
+ }
+
+ // Call the function
+ $result = call_user_func($method, $args);
+ }
+ return $result;
+ }
+
+ function error($error, $message = false)
+ {
+ // Accepts either an error object or an error code and message
+ if ($message && !is_object($error)) {
+ $error = new IXR_Error($error, $message);
+ }
+ $this->output($error->getXml());
+ }
+
+ function output($xml)
+ {
+ $charset = function_exists('get_option') ? get_option('blog_charset') : '';
+ if ($charset)
+ $xml = '<?xml version="1.0" encoding="'.$charset.'"?>'."\n".$xml;
+ else
+ $xml = '<?xml version="1.0"?>'."\n".$xml;
+ $length = strlen($xml);
+ header('Connection: close');
+ if ($charset)
+ header('Content-Type: text/xml; charset='.$charset);
+ else
+ header('Content-Type: text/xml');
+ header('Date: '.date('r'));
+ echo $xml;
+ exit;
+ }
+
+ function hasMethod($method)
+ {
+ return in_array($method, array_keys($this->callbacks));
+ }
+
+ function setCapabilities()
+ {
+ // Initialises capabilities array
+ $this->capabilities = array(
+ 'xmlrpc' => array(
+ 'specUrl' => 'http://www.xmlrpc.com/spec',
+ 'specVersion' => 1
+ ),
+ 'faults_interop' => array(
+ 'specUrl' => 'http://xmlrpc-epi.sourceforge.net/specs/rfc.fault_codes.php',
+ 'specVersion' => 20010516
+ ),
+ 'system.multicall' => array(
+ 'specUrl' => 'http://www.xmlrpc.com/discuss/msgReader$1208',
+ 'specVersion' => 1
+ ),
+ );
+ }
+
+ function getCapabilities($args)
+ {
+ return $this->capabilities;
+ }
+
+ function setCallbacks()
+ {
+ $this->callbacks['system.getCapabilities'] = 'this:getCapabilities';
+ $this->callbacks['system.listMethods'] = 'this:listMethods';
+ $this->callbacks['system.multicall'] = 'this:multiCall';
+ }
+
+ function listMethods($args)
+ {
+ // Returns a list of methods - uses array_reverse to ensure user defined
+ // methods are listed before server defined methods
+ return array_reverse(array_keys($this->callbacks));
+ }
+
+ function multiCall($methodcalls)
+ {
+ // See http://www.xmlrpc.com/discuss/msgReader$1208
+ $return = array();
+ foreach ($methodcalls as $call) {
+ $method = $call['methodName'];
+ $params = $call['params'];
+ if ($method == 'system.multicall') {
+ $result = new IXR_Error(-32600, 'Recursive calls to system.multicall are forbidden');
+ } else {
+ $result = $this->call($method, $params);
+ }
+ if (is_a($result, 'IXR_Error')) {
+ $return[] = array(
+ 'faultCode' => $result->code,
+ 'faultString' => $result->message
+ );
+ } else {
+ $return[] = array($result);
+ }
+ }
+ return $return;
+ }
+}
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