will be doing some stuff for which handcrafting xmlrpc requests is too bloody painful. xmlrpc is long dead, but it's the language of wordpress - which is far from dead.

1 files changed, 1371 insertions, 0 deletions

diff --git a/library/IXR_Library.php b/library/IXR_Library.php
new file mode 100644
index 000000000..9e2537701
--- /dev/null
+++ b/library/IXR_Library.php
@@ -0,0 +1,1371 @@
+<?php
+/**
+ * IXR - The Incutio XML-RPC Library
+ *
+ * Copyright (c) 2010, Incutio Ltd.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  - Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ *  - Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  - Neither the name of Incutio Ltd. nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+ * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+ * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * @package IXR
+ * @since 1.5
+ *
+ * @copyright  Incutio Ltd 2010 (http://www.incutio.com)
+ * @version    1.7.4 7th September 2010
+ * @author     Simon Willison
+ * @link       http://scripts.incutio.com/xmlrpc/ Site/manual
+ */
+
+
+class IXR_Value
+{
+    var $data;
+    var $type;
+
+    function IXR_Value($data, $type = false)
+    {
+        $this->data = $data;
+        if (!$type) {
+            $type = $this->calculateType();
+        }
+        $this->type = $type;
+        if ($type == 'struct') {
+            // Turn all the values in the array in to new IXR_Value objects
+            foreach ($this->data as $key => $value) {
+                $this->data[$key] = new IXR_Value($value);
+            }
+        }
+        if ($type == 'array') {
+            for ($i = 0, $j = count($this->data); $i < $j; $i++) {
+                $this->data[$i] = new IXR_Value($this->data[$i]);
+            }
+        }
+    }
+
+    function calculateType()
+    {
+        if ($this->data === true || $this->data === false) {
+            return 'boolean';
+        }
+        if (is_integer($this->data)) {
+            return 'int';
+        }
+        if (is_double($this->data)) {
+            return 'double';
+        }
+
+        // Deal with IXR object types base64 and date
+        if (is_object($this->data) && is_a($this->data, 'IXR_Date')) {
+            return 'date';
+        }
+        if (is_object($this->data) && is_a($this->data, 'IXR_Base64')) {
+            return 'base64';
+        }
+
+        // If it is a normal PHP object convert it in to a struct
+        if (is_object($this->data)) {
+            $this->data = get_object_vars($this->data);
+            return 'struct';
+        }
+        if (!is_array($this->data)) {
+            return 'string';
+        }
+
+        // We have an array - is it an array or a struct?
+        if ($this->isStruct($this->data)) {
+            return 'struct';
+        } else {
+            return 'array';
+        }
+    }
+
+    function getXml()
+    {
+        // Return XML for this value
+        switch ($this->type) {
+            case 'boolean':
+                return '<boolean>'.(($this->data) ? '1' : '0').'</boolean>';
+                break;
+            case 'int':
+                return '<int>'.$this->data.'</int>';
+                break;
+            case 'double':
+                return '<double>'.$this->data.'</double>';
+                break;
+            case 'string':
+                return '<string>'.htmlspecialchars($this->data).'</string>';
+                break;
+            case 'array':
+                $return = '<array><data>'."\n";
+                foreach ($this->data as $item) {
+                    $return .= '  <value>'.$item->getXml()."</value>\n";
+                }
+                $return .= '</data></array>';
+                return $return;
+                break;
+            case 'struct':
+                $return = '<struct>'."\n";
+                foreach ($this->data as $name => $value) {
+                    $return .= "  <member><name>$name</name><value>";
+                    $return .= $value->getXml()."</value></member>\n";
+                }
+                $return .= '</struct>';
+                return $return;
+                break;
+            case 'date':
+            case 'base64':
+                return $this->data->getXml();
+                break;
+        }
+        return false;
+    }
+
+    /**
+     * Checks whether or not the supplied array is a struct or not
+     *
+     * @param unknown_type $array
+     * @return boolean
+     */
+    function isStruct($array)
+    {
+        $expected = 0;
+        foreach ($array as $key => $value) {
+            if ((string)$key != (string)$expected) {
+                return true;
+            }
+            $expected++;
+        }
+        return false;
+    }
+}
+
+/**
+ * IXR_MESSAGE
+ *
+ * @package IXR
+ * @since 1.5
+ *
+ */
+class IXR_Message
+{
+    var $message;
+    var $messageType;  // methodCall / methodResponse / fault
+    var $faultCode;
+    var $faultString;
+    var $methodName;
+    var $params;
+
+    // Current variable stacks
+    var $_arraystructs = array();   // The stack used to keep track of the current array/struct
+    var $_arraystructstypes = array(); // Stack keeping track of if things are structs or array
+    var $_currentStructName = array();  // A stack as well
+    var $_param;
+    var $_value;
+    var $_currentTag;
+    var $_currentTagContents;
+    // The XML parser
+    var $_parser;
+
+    function IXR_Message($message)
+    {
+        $this->message =& $message;
+    }
+
+    function parse()
+    {
+        // first remove the XML declaration
+        // merged from WP #10698 - this method avoids the RAM usage of preg_replace on very large messages
+        $header = preg_replace( '/<\?xml.*?\?'.'>/', '', substr($this->message, 0, 100), 1);
+        $this->message = substr_replace($this->message, $header, 0, 100);
+        if (trim($this->message) == '') {
+            return false;
+        }
+        $this->_parser = xml_parser_create();
+        // Set XML parser to take the case of tags in to account
+        xml_parser_set_option($this->_parser, XML_OPTION_CASE_FOLDING, false);
+        // Set XML parser callback functions
+        xml_set_object($this->_parser, $this);
+        xml_set_element_handler($this->_parser, 'tag_open', 'tag_close');
+        xml_set_character_data_handler($this->_parser, 'cdata');
+        $chunk_size = 262144; // 256Kb, parse in chunks to avoid the RAM usage on very large messages
+        do {
+            if (strlen($this->message) <= $chunk_size) {
+                $final = true;
+            }
+            $part = substr($this->message, 0, $chunk_size);
+            $this->message = substr($this->message, $chunk_size);
+            if (!xml_parse($this->_parser, $part, $final)) {
+                return false;
+            }
+            if ($final) {
+                break;
+            }
+        } while (true);
+        xml_parser_free($this->_parser);
+
+        // Grab the error messages, if any
+        if ($this->messageType == 'fault') {
+            $this->faultCode = $this->params[0]['faultCode'];
+            $this->faultString = $this->params[0]['faultString'];
+        }
+        return true;
+    }
+
+    function tag_open($parser, $tag, $attr)
+    {
+        $this->_currentTagContents = '';
+        $this->currentTag = $tag;
+        switch($tag) {
+            case 'methodCall':
+            case 'methodResponse':
+            case 'fault':
+                $this->messageType = $tag;
+                break;
+                /* Deal with stacks of arrays and structs */
+            case 'data':    // data is to all intents and puposes more interesting than array
+                $this->_arraystructstypes[] = 'array';
+                $this->_arraystructs[] = array();
+                break;
+            case 'struct':
+                $this->_arraystructstypes[] = 'struct';
+                $this->_arraystructs[] = array();
+                break;
+        }
+    }
+
+    function cdata($parser, $cdata)
+    {
+        $this->_currentTagContents .= $cdata;
+    }
+
+    function tag_close($parser, $tag)
+    {
+        $valueFlag = false;
+        switch($tag) {
+            case 'int':
+            case 'i4':
+                $value = (int)trim($this->_currentTagContents);
+                $valueFlag = true;
+                break;
+            case 'double':
+                $value = (double)trim($this->_currentTagContents);
+                $valueFlag = true;
+                break;
+            case 'string':
+                $value = (string)trim($this->_currentTagContents);
+                $valueFlag = true;
+                break;
+            case 'dateTime.iso8601':
+                $value = new IXR_Date(trim($this->_currentTagContents));
+                $valueFlag = true;
+                break;
+            case 'value':
+                // "If no type is indicated, the type is string."
+                if (trim($this->_currentTagContents) != '') {
+                    $value = (string)$this->_currentTagContents;
+                    $valueFlag = true;
+                }
+                break;
+            case 'boolean':
+                $value = (boolean)trim($this->_currentTagContents);
+                $valueFlag = true;
+                break;
+            case 'base64':
+                $value = base64_decode($this->_currentTagContents);
+                $valueFlag = true;
+                break;
+                /* Deal with stacks of arrays and structs */
+            case 'data':
+            case 'struct':
+                $value = array_pop($this->_arraystructs);
+                array_pop($this->_arraystructstypes);
+                $valueFlag = true;
+                break;
+            case 'member':
+                array_pop($this->_currentStructName);
+                break;
+            case 'name':
+                $this->_currentStructName[] = trim($this->_currentTagContents);
+                break;
+            case 'methodName':
+                $this->methodName = trim($this->_currentTagContents);
+                break;
+        }
+
+        if ($valueFlag) {
+            if (count($this->_arraystructs) > 0) {
+                // Add value to struct or array
+                if ($this->_arraystructstypes[count($this->_arraystructstypes)-1] == 'struct') {
+                    // Add to struct
+                    $this->_arraystructs[count($this->_arraystructs)-1][$this->_currentStructName[count($this->_currentStructName)-1]] = $value;
+                } else {
+                    // Add to array
+                    $this->_arraystructs[count($this->_arraystructs)-1][] = $value;
+                }
+            } else {
+                // Just add as a paramater
+                $this->params[] = $value;
+            }
+        }
+        $this->_currentTagContents = '';
+    }
+}
+
+/**
+ * IXR_Server
+ *
+ * @package IXR
+ * @since 1.5
+ */
+class IXR_Server
+{
+    var $data;
+    var $callbacks = array();
+    var $message;
+    var $capabilities;
+
+    function IXR_Server($callbacks = false, $data = false, $wait = false)
+    {
+        $this->setCapabilities();
+        if ($callbacks) {
+            $this->callbacks = $callbacks;
+        }
+        $this->setCallbacks();
+        if (!$wait) {
+            $this->serve($data);
+        }
+    }
+
+    function serve($data = false)
+    {
+        if (!$data) {
+            if (isset($_SERVER['REQUEST_METHOD']) && $_SERVER['REQUEST_METHOD'] !== '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 paramater 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 (!method_exists($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)
+    {
+        $xml = '<?xml version="1.0"?>'."\n".$xml;
+        $length = strlen($xml);
+        header('Connection: close');
+        header('Content-Length: '.$length);
+        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;
+    }
+}
+
+/**
+ * IXR_Request
+ *
+ * @package IXR
+ * @since 1.5
+ */
+class IXR_Request
+{
+    var $method;
+    var $args;
+    var $xml;
+
+    function IXR_Request($method, $args)
+    {
+        $this->method = $method;
+        $this->args = $args;
+        $this->xml = <<<EOD
+<?xml version="1.0"?>
+<methodCall>
+<methodName>{$this->method}</methodName>
+<params>
+
+EOD;
+        foreach ($this->args as $arg) {
+            $this->xml .= '<param><value>';
+            $v = new IXR_Value($arg);
+            $this->xml .= $v->getXml();
+            $this->xml .= "</value></param>\n";
+        }
+        $this->xml .= '</params></methodCall>';
+    }
+
+    function getLength()
+    {
+        return strlen($this->xml);
+    }
+
+    function getXml()
+    {
+        return $this->xml;
+    }
+}
+
+/**
+ * IXR_Client
+ *
+ * @package IXR
+ * @since 1.5
+ *
+ */
+class IXR_Client
+{
+    var $server;
+    var $port;
+    var $path;
+    var $useragent;
+    var $response;
+    var $message = false;
+    var $debug = false;
+    var $timeout;
+
+    // Storage place for an error message
+    var $error = false;
+
+    function IXR_Client($server, $path = false, $port = 80, $timeout = 15)
+    {
+        if (!$path) {
+            // Assume we have been given a URL instead
+            $bits = parse_url($server);
+            $this->server = $bits['host'];
+            $this->port = isset($bits['port']) ? $bits['port'] : 80;
+            $this->path = isset($bits['path']) ? $bits['path'] : '/';
+
+            // Make absolutely sure we have a path
+            if (!$this->path) {
+                $this->path = '/';
+            }
+        } else {
+            $this->server = $server;
+            $this->path = $path;
+            $this->port = $port;
+        }
+        $this->useragent = 'The Incutio XML-RPC PHP Library';
+        $this->timeout = $timeout;
+    }
+
+    function query()
+    {
+        $args = func_get_args();
+        $method = array_shift($args);
+        $request = new IXR_Request($method, $args);
+        $length = $request->getLength();
+        $xml = $request->getXml();
+        $r = "\r\n";
+        $request  = "POST {$this->path} HTTP/1.0$r";
+
+        // Merged from WP #8145 - allow custom headers
+        $this->headers['Host']          = $this->server;
+        $this->headers['Content-Type']  = 'text/xml';
+        $this->headers['User-Agent']    = $this->useragent;
+        $this->headers['Content-Length']= $length;
+
+        foreach( $this->headers as $header => $value ) {
+            $request .= "{$header}: {$value}{$r}";
+        }
+        $request .= $r;
+
+        $request .= $xml;
+
+        // Now send the request
+        if ($this->debug) {
+            echo '<pre class="ixr_request">'.htmlspecialchars($request)."\n</pre>\n\n";
+        }
+
+        if ($this->timeout) {
+            $fp = @fsockopen($this->server, $this->port, $errno, $errstr, $this->timeout);
+        } else {
+            $fp = @fsockopen($this->server, $this->port, $errno, $errstr);
+        }
+        if (!$fp) {
+            $this->error = new IXR_Error(-32300, 'transport error - could not open socket');
+            return false;
+        }
+        fputs($fp, $request);
+        $contents = '';
+        $debugContents = '';
+        $gotFirstLine = false;
+        $gettingHeaders = true;
+        while (!feof($fp)) {
+            $line = fgets($fp, 4096);
+            if (!$gotFirstLine) {
+                // Check line for '200'
+                if (strstr($line, '200') === false) {
+                    $this->error = new IXR_Error(-32300, 'transport error - HTTP status code was not 200');
+                    return false;
+                }
+                $gotFirstLine = true;
+            }
+            if (trim($line) == '') {
+                $gettingHeaders = false;
+            }
+            if (!$gettingHeaders) {
+            	// merged from WP #12559 - remove trim
+                $contents .= $line;
+            }
+            if ($this->debug) {
+            	$debugContents .= $line;
+            }
+        }
+        if ($this->debug) {
+            echo '<pre class="ixr_response">'.htmlspecialchars($debugContents)."\n</pre>\n\n";
+        }
+
+        // Now parse what we've got back
+        $this->message = new IXR_Message($contents);
+        if (!$this->message->parse()) {
+            // XML error
+            $this->error = new IXR_Error(-32700, 'parse error. not well formed');
+            return false;
+        }
+
+        // Is the message a fault?
+        if ($this->message->messageType == 'fault') {
+            $this->error = new IXR_Error($this->message->faultCode, $this->message->faultString);
+            return false;
+        }
+
+        // Message must be OK
+        return true;
+    }
+
+    function getResponse()
+    {
+        // methodResponses can only have one param - return that
+        return $this->message->params[0];
+    }
+
+    function isError()
+    {
+        return (is_object($this->error));
+    }
+
+    function getErrorCode()
+    {
+        return $this->error->code;
+    }
+
+    function getErrorMessage()
+    {
+        return $this->error->message;
+    }
+}
+
+
+/**
+ * IXR_Error
+ *
+ * @package IXR
+ * @since 1.5
+ */
+class IXR_Error
+{
+    var $code;
+    var $message;
+
+    function IXR_Error($code, $message)
+    {
+        $this->code = $code;
+        $this->message = htmlspecialchars($message);
+    }
+
+    function getXml()
+    {
+        $xml = <<<EOD
+<methodResponse>
+  <fault>
+    <value>
+      <struct>
+        <member>
+          <name>faultCode</name>
+          <value><int>{$this->code}</int></value>
+        </member>
+        <member>
+          <name>faultString</name>
+          <value><string>{$this->message}</string></value>
+        </member>
+      </struct>
+    </value>
+  </fault>
+</methodResponse>
+
+EOD;
+        return $xml;
+    }
+}
+
+/**
+ * IXR_Date
+ *
+ * @package IXR
+ * @since 1.5
+ */
+class IXR_Date {
+    var $year;
+    var $month;
+    var $day;
+    var $hour;
+    var $minute;
+    var $second;
+    var $timezone;
+
+    function IXR_Date($time)
+    {
+        // $time can be a PHP timestamp or an ISO one
+        if (is_numeric($time)) {
+            $this->parseTimestamp($time);
+        } else {
+            $this->parseIso($time);
+        }
+    }
+
+    function parseTimestamp($timestamp)
+    {
+        $this->year = date('Y', $timestamp);
+        $this->month = date('m', $timestamp);
+        $this->day = date('d', $timestamp);
+        $this->hour = date('H', $timestamp);
+        $this->minute = date('i', $timestamp);
+        $this->second = date('s', $timestamp);
+        $this->timezone = '';
+    }
+
+    function parseIso($iso)
+    {
+        $this->year = substr($iso, 0, 4);
+        $this->month = substr($iso, 4, 2);
+        $this->day = substr($iso, 6, 2);
+        $this->hour = substr($iso, 9, 2);
+        $this->minute = substr($iso, 12, 2);
+        $this->second = substr($iso, 15, 2);
+        $this->timezone = substr($iso, 17);
+    }
+
+    function getIso()
+    {
+        return $this->year.$this->month.$this->day.'T'.$this->hour.':'.$this->minute.':'.$this->second.$this->timezone;
+    }
+
+    function getXml()
+    {
+        return '<dateTime.iso8601>'.$this->getIso().'</dateTime.iso8601>';
+    }
+
+    function getTimestamp()
+    {
+        return mktime($this->hour, $this->minute, $this->second, $this->month, $this->day, $this->year);
+    }
+}
+
+/**
+ * IXR_Base64
+ *
+ * @package IXR
+ * @since 1.5
+ */
+class IXR_Base64
+{
+    var $data;
+
+    function IXR_Base64($data)
+    {
+        $this->data = $data;
+    }
+
+    function getXml()
+    {
+        return '<base64>'.base64_encode($this->data).'</base64>';
+    }
+}
+
+/**
+ * IXR_IntrospectionServer
+ *
+ * @package IXR
+ * @since 1.5
+ */
+class IXR_IntrospectionServer extends IXR_Server
+{
+    var $signatures;
+    var $help;
+
+    function IXR_IntrospectionServer()
+    {
+        $this->setCallbacks();
+        $this->setCapabilities();
+        $this->capabilities['introspection'] = array(
+            'specUrl' => 'http://xmlrpc.usefulinc.com/doc/reserved.html',
+            'specVersion' => 1
+        );
+        $this->addCallback(
+            'system.methodSignature',
+            'this:methodSignature',
+            array('array', 'string'),
+            'Returns an array describing the return type and required parameters of a method'
+        );
+        $this->addCallback(
+            'system.getCapabilities',
+            'this:getCapabilities',
+            array('struct'),
+            'Returns a struct describing the XML-RPC specifications supported by this server'
+        );
+        $this->addCallback(
+            'system.listMethods',
+            'this:listMethods',
+            array('array'),
+            'Returns an array of available methods on this server'
+        );
+        $this->addCallback(
+            'system.methodHelp',
+            'this:methodHelp',
+            array('string', 'string'),
+            'Returns a documentation string for the specified method'
+        );
+    }
+
+    function addCallback($method, $callback, $args, $help)
+    {
+        $this->callbacks[$method] = $callback;
+        $this->signatures[$method] = $args;
+        $this->help[$method] = $help;
+    }
+
+    function call($methodname, $args)
+    {
+        // Make sure it's in an array
+        if ($args && !is_array($args)) {
+            $args = array($args);
+        }
+
+        // Over-rides default call method, adds signature check
+        if (!$this->hasMethod($methodname)) {
+            return new IXR_Error(-32601, 'server error. requested method "'.$this->message->methodName.'" not specified.');
+        }
+        $method = $this->callbacks[$methodname];
+        $signature = $this->signatures[$methodname];
+        $returnType = array_shift($signature);
+
+        // Check the number of arguments
+        if (count($args) != count($signature)) {
+            return new IXR_Error(-32602, 'server error. wrong number of method parameters');
+        }
+
+        // Check the argument types
+        $ok = true;
+        $argsbackup = $args;
+        for ($i = 0, $j = count($args); $i < $j; $i++) {
+            $arg = array_shift($args);
+            $type = array_shift($signature);
+            switch ($type) {
+                case 'int':
+                case 'i4':
+                    if (is_array($arg) || !is_int($arg)) {
+                        $ok = false;
+                    }
+                    break;
+                case 'base64':
+                case 'string':
+                    if (!is_string($arg)) {
+                        $ok = false;
+                    }
+                    break;
+                case 'boolean':
+                    if ($arg !== false && $arg !== true) {
+                        $ok = false;
+                    }
+                    break;
+                case 'float':
+                case 'double':
+                    if (!is_float($arg)) {
+                        $ok = false;
+                    }
+                    break;
+                case 'date':
+                case 'dateTime.iso8601':
+                    if (!is_a($arg, 'IXR_Date')) {
+                        $ok = false;
+                    }
+                    break;
+            }
+            if (!$ok) {
+                return new IXR_Error(-32602, 'server error. invalid method parameters');
+            }
+        }
+        // It passed the test - run the "real" method call
+        return parent::call($methodname, $argsbackup);
+    }
+
+    function methodSignature($method)
+    {
+        if (!$this->hasMethod($method)) {
+            return new IXR_Error(-32601, 'server error. requested method "'.$method.'" not specified.');
+        }
+        // We should be returning an array of types
+        $types = $this->signatures[$method];
+        $return = array();
+        foreach ($types as $type) {
+            switch ($type) {
+                case 'string':
+                    $return[] = 'string';
+                    break;
+                case 'int':
+                case 'i4':
+                    $return[] = 42;
+                    break;
+                case 'double':
+                    $return[] = 3.1415;
+                    break;
+                case 'dateTime.iso8601':
+                    $return[] = new IXR_Date(time());
+                    break;
+                case 'boolean':
+                    $return[] = true;
+                    break;
+                case 'base64':
+                    $return[] = new IXR_Base64('base64');
+                    break;
+                case 'array':
+                    $return[] = array('array');
+                    break;
+                case 'struct':
+                    $return[] = array('struct' => 'struct');
+                    break;
+            }
+        }
+        return $return;
+    }
+
+    function methodHelp($method)
+    {
+        return $this->help[$method];
+    }
+}
+
+/**
+ * IXR_ClientMulticall
+ *
+ * @package IXR
+ * @since 1.5
+ */
+class IXR_ClientMulticall extends IXR_Client
+{
+    var $calls = array();
+
+    function IXR_ClientMulticall($server, $path = false, $port = 80)
+    {
+        parent::IXR_Client($server, $path, $port);
+        $this->useragent = 'The Incutio XML-RPC PHP Library (multicall client)';
+    }
+
+    function addCall()
+    {
+        $args = func_get_args();
+        $methodName = array_shift($args);
+        $struct = array(
+            'methodName' => $methodName,
+            'params' => $args
+        );
+        $this->calls[] = $struct;
+    }
+
+    function query()
+    {
+        // Prepare multicall, then call the parent::query() method
+        return parent::query('system.multicall', $this->calls);
+    }
+}
+
+/**
+ * Client for communicating with a XML-RPC Server over HTTPS.
+ *
+ * @author Jason Stirk <jstirk@gmm.com.au> (@link http://blog.griffin.homelinux.org/projects/xmlrpc/)
+ * @version 0.2.0 26May2005 08:34 +0800
+ * @copyright (c) 2004-2005 Jason Stirk
+ * @package IXR
+ */
+class IXR_ClientSSL extends IXR_Client
+{
+    /**
+     * Filename of the SSL Client Certificate
+     * @access private
+     * @since 0.1.0
+     * @var string
+     */
+    var $_certFile;
+
+    /**
+     * Filename of the SSL CA Certificate
+     * @access private
+     * @since 0.1.0
+     * @var string
+     */
+    var $_caFile;
+
+    /**
+     * Filename of the SSL Client Private Key
+     * @access private
+     * @since 0.1.0
+     * @var string
+     */
+    var $_keyFile;
+
+    /**
+     * Passphrase to unlock the private key
+     * @access private
+     * @since 0.1.0
+     * @var string
+     */
+    var $_passphrase;
+
+    /**
+     * Constructor
+     * @param string $server URL of the Server to connect to
+     * @since 0.1.0
+     */
+    function IXR_ClientSSL($server, $path = false, $port = 443, $timeout = false)
+    {
+        parent::IXR_Client($server, $path, $port, $timeout);
+        $this->useragent = 'The Incutio XML-RPC PHP Library for SSL';
+
+        // Set class fields
+        $this->_certFile=false;
+        $this->_caFile=false;
+        $this->_keyFile=false;
+        $this->_passphrase='';
+    }
+
+    /**
+     * Set the client side certificates to communicate with the server.
+     *
+     * @since 0.1.0
+     * @param string $certificateFile Filename of the client side certificate to use
+     * @param string $keyFile Filename of the client side certificate's private key
+     * @param string $keyPhrase Passphrase to unlock the private key
+     */
+    function setCertificate($certificateFile, $keyFile, $keyPhrase='')
+    {
+        // Check the files all exist
+        if (is_file($certificateFile)) {
+            $this->_certFile = $certificateFile;
+        } else {
+            die('Could not open certificate: ' . $certificateFile);
+        }
+
+        if (is_file($keyFile)) {
+            $this->_keyFile = $keyFile;
+        } else {
+            die('Could not open private key: ' . $keyFile);
+        }
+
+        $this->_passphrase=(string)$keyPhrase;
+    }
+
+    function setCACertificate($caFile)
+    {
+        if (is_file($caFile)) {
+            $this->_caFile = $caFile;
+        } else {
+            die('Could not open CA certificate: ' . $caFile);
+        }
+    }
+
+    /**
+     * Sets the connection timeout (in seconds)
+     * @param int $newTimeOut Timeout in seconds
+     * @returns void
+     * @since 0.1.2
+     */
+    function setTimeOut($newTimeOut)
+    {
+        $this->timeout = (int)$newTimeOut;
+    }
+
+    /**
+     * Returns the connection timeout (in seconds)
+     * @returns int
+     * @since 0.1.2
+     */
+    function getTimeOut()
+    {
+        return $this->timeout;
+    }
+
+    /**
+     * Set the query to send to the XML-RPC Server
+     * @since 0.1.0
+     */
+    function query()
+    {
+        $args = func_get_args();
+        $method = array_shift($args);
+        $request = new IXR_Request($method, $args);
+        $length = $request->getLength();
+        $xml = $request->getXml();
+
+        if ($this->debug) {
+            echo '<pre>'.htmlspecialchars($xml)."\n</pre>\n\n";
+        }
+
+        //This is where we deviate from the normal query()
+        //Rather than open a normal sock, we will actually use the cURL
+        //extensions to make the calls, and handle the SSL stuff.
+
+        //Since 04Aug2004 (0.1.3) - Need to include the port (duh...)
+        //Since 06Oct2004 (0.1.4) - Need to include the colon!!!
+        //        (I swear I've fixed this before... ESP in live... But anyhu...)
+        $curl=curl_init('https://' . $this->server . ':' . $this->port . $this->path);
+        curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
+
+        //Since 23Jun2004 (0.1.2) - Made timeout a class field
+        curl_setopt($curl, CURLOPT_TIMEOUT, $this->timeout);
+
+        if ($this->debug) {
+            curl_setopt($curl, CURLOPT_VERBOSE, 1);
+        }
+
+        curl_setopt($curl, CURLOPT_HEADER, 1);
+        curl_setopt($curl, CURLOPT_POST, 1);
+        curl_setopt($curl, CURLOPT_POSTFIELDS, $xml);
+        curl_setopt($curl, CURLOPT_PORT, $this->port);
+        curl_setopt($curl, CURLOPT_HTTPHEADER, array(
+                                    "Content-Type: text/xml",
+                                    "Content-length: {$length}"));
+
+        // Process the SSL certificates, etc. to use
+        if (!($this->_certFile === false)) {
+            // We have a certificate file set, so add these to the cURL handler
+            curl_setopt($curl, CURLOPT_SSLCERT, $this->_certFile);
+            curl_setopt($curl, CURLOPT_SSLKEY, $this->_keyFile);
+
+            if ($this->debug) {
+                echo "SSL Cert at : " . $this->_certFile . "\n";
+                echo "SSL Key at : " . $this->_keyFile . "\n";
+            }
+
+            // See if we need to give a passphrase
+            if (!($this->_passphrase === '')) {
+                curl_setopt($curl, CURLOPT_SSLCERTPASSWD, $this->_passphrase);
+            }
+
+            if ($this->_caFile === false) {
+                // Don't verify their certificate, as we don't have a CA to verify against
+                curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, 0);
+            } else {
+                // Verify against a CA
+                curl_setopt($curl, CURLOPT_CAINFO, $this->_caFile);
+            }
+        }
+
+        // Call cURL to do it's stuff and return us the content
+        $contents = curl_exec($curl);
+        curl_close($curl);
+
+        // Check for 200 Code in $contents
+        if (!strstr($contents, '200 OK')) {
+            //There was no "200 OK" returned - we failed
+            $this->error = new IXR_Error(-32300, 'transport error - HTTP status code was not 200');
+            return false;
+        }
+
+        if ($this->debug) {
+            echo '<pre>'.htmlspecialchars($contents)."\n</pre>\n\n";
+        }
+        // Now parse what we've got back
+        // Since 20Jun2004 (0.1.1) - We need to remove the headers first
+        // Why I have only just found this, I will never know...
+        // So, remove everything before the first <
+        $contents = substr($contents,strpos($contents, '<'));
+
+        $this->message = new IXR_Message($contents);
+        if (!$this->message->parse()) {
+            // XML error
+            $this->error = new IXR_Error(-32700, 'parse error. not well formed');
+            return false;
+        }
+        // Is the message a fault?
+        if ($this->message->messageType == 'fault') {
+            $this->error = new IXR_Error($this->message->faultCode, $this->message->faultString);
+            return false;
+        }
+
+        // Message must be OK
+        return true;
+    }
+}
+
+/**
+ * Extension of the {@link IXR_Server} class to easily wrap objects.
+ *
+ * Class is designed to extend the existing XML-RPC server to allow the
+ * presentation of methods from a variety of different objects via an
+ * XML-RPC server.
+ * It is intended to assist in organization of your XML-RPC methods by allowing
+ * you to "write once" in your existing model classes and present them.
+ *
+ * @author Jason Stirk <jstirk@gmm.com.au>
+ * @version 1.0.1 19Apr2005 17:40 +0800
+ * @copyright Copyright (c) 2005 Jason Stirk
+ * @package IXR
+ */
+class IXR_ClassServer extends IXR_Server
+{
+    var $_objects;
+    var $_delim;
+
+    function IXR_ClassServer($delim = '.', $wait = false)
+    {
+        $this->IXR_Server(array(), false, $wait);
+        $this->_delimiter = $delim;
+        $this->_objects = array();
+    }
+
+    function addMethod($rpcName, $functionName)
+    {
+        $this->callbacks[$rpcName] = $functionName;
+    }
+
+    function registerObject($object, $methods, $prefix=null)
+    {
+        if (is_null($prefix))
+        {
+            $prefix = get_class($object);
+        }
+        $this->_objects[$prefix] = $object;
+
+        // Add to our callbacks array
+        foreach($methods as $method)
+        {
+            if (is_array($method))
+            {
+                $targetMethod = $method[0];
+                $method = $method[1];
+            }
+            else
+            {
+                $targetMethod = $method;
+            }
+            $this->callbacks[$prefix . $this->_delimiter . $method]=array($prefix, $targetMethod);
+        }
+    }
+
+    function call($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 paramater just send that instead of the whole array
+            $args = $args[0];
+        }
+
+        // See if this method comes from one of our objects or maybe self
+        if (is_array($method) || (substr($method, 0, 5) == 'this:')) {
+            if (is_array($method)) {
+                $object=$this->_objects[$method[0]];
+                $method=$method[1];
+            } else {
+                $object=$this;
+                $method = substr($method, 5);
+            }
+
+            // It's a class method - check it exists
+            if (!method_exists($object, $method)) {
+                return new IXR_Error(-32601, 'server error. requested class method "'.$method.'" does not exist.');
+            }
+
+            // Call the method
+            $result = $object->$method($args);
+        } else {
+            // It's a function - does it exist?
+            if (!function_exists($method)) {
+                return new IXR_Error(-32601, 'server error. requested function "'.$method.'" does not exist.');
+            }
+
+            // Call the function
+            $result = $method($args);
+        }
+        return $result;
+    }
+}