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// by Edd Dumbill (C) 1999-2002
// <edd@usefulinc.com>
// $Id: xmlrpcs.inc,v 1.71 2008/10/29 23:41:28 ggiunta Exp $

// Copyright (c) 1999,2000,2002 Edd Dumbill.
// 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 the "XML-RPC for PHP" 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
// REGENTS 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.

	// XML RPC Server class
	// requires: xmlrpc.inc

	$GLOBALS['xmlrpcs_capabilities'] = array(
		// xmlrpc spec: always supported
		'xmlrpc' => new xmlrpcval(array(
			'specUrl' => new xmlrpcval('http://www.xmlrpc.com/spec', 'string'),
			'specVersion' => new xmlrpcval(1, 'int')
		), 'struct'),
		// if we support system.xxx functions, we always support multicall, too...
		// Note that, as of 2006/09/17, the following URL does not respond anymore
		'system.multicall' => new xmlrpcval(array(
			'specUrl' => new xmlrpcval('http://www.xmlrpc.com/discuss/msgReader$1208', 'string'),
			'specVersion' => new xmlrpcval(1, 'int')
		), 'struct'),
		// introspection: version 2! we support 'mixed', too
		'introspection' => new xmlrpcval(array(
			'specUrl' => new xmlrpcval('http://phpxmlrpc.sourceforge.net/doc-2/ch10.html', 'string'),
			'specVersion' => new xmlrpcval(2, 'int')
		), 'struct')
	);

	/* Functions that implement system.XXX methods of xmlrpc servers */
	$_xmlrpcs_getCapabilities_sig=array(array($GLOBALS['xmlrpcStruct']));
	$_xmlrpcs_getCapabilities_doc='This method lists all the capabilites that the XML-RPC server has: the (more or less standard) extensions to the xmlrpc spec that it adheres to';
	$_xmlrpcs_getCapabilities_sdoc=array(array('list of capabilities, described as structs with a version number and url for the spec'));
	function _xmlrpcs_getCapabilities($server, $m=null)
	{
		$outAr = $GLOBALS['xmlrpcs_capabilities'];
		// NIL extension
		if ($GLOBALS['xmlrpc_null_extension']) {
			$outAr['nil'] = new xmlrpcval(array(
				'specUrl' => new xmlrpcval('http://www.ontosys.com/xml-rpc/extensions.php', 'string'),
				'specVersion' => new xmlrpcval(1, 'int')
			), 'struct');
		}
		return new xmlrpcresp(new xmlrpcval($outAr, 'struct'));
	}

	// listMethods: signature was either a string, or nothing.
	// The useless string variant has been removed
	$_xmlrpcs_listMethods_sig=array(array($GLOBALS['xmlrpcArray']));
	$_xmlrpcs_listMethods_doc='This method lists all the methods that the XML-RPC server knows how to dispatch';
	$_xmlrpcs_listMethods_sdoc=array(array('list of method names'));
	function _xmlrpcs_listMethods($server, $m=null) // if called in plain php values mode, second param is missing
	{

		$outAr=array();
		foreach($server->dmap as $key => $val)
		{
			$outAr[]=new xmlrpcval($key, 'string');
		}
		if($server->allow_system_funcs)
		{
			foreach($GLOBALS['_xmlrpcs_dmap'] as $key => $val)
			{
				$outAr[]=new xmlrpcval($key, 'string');
			}
		}
		return new xmlrpcresp(new xmlrpcval($outAr, 'array'));
	}

	$_xmlrpcs_methodSignature_sig=array(array($GLOBALS['xmlrpcArray'], $GLOBALS['xmlrpcString']));
	$_xmlrpcs_methodSignature_doc='Returns an array of known signatures (an array of arrays) for the method name passed. If no signatures are known, returns a none-array (test for type != array to detect missing signature)';
	$_xmlrpcs_methodSignature_sdoc=array(array('list of known signatures, each sig being an array of xmlrpc type names', 'name of method to be described'));
	function _xmlrpcs_methodSignature($server, $m)
	{
		// let accept as parameter both an xmlrpcval or string
		if (is_object($m))
		{
			$methName=$m->getParam(0);
			$methName=$methName->scalarval();
		}
		else
		{
			$methName=$m;
		}
		if(strpos($methName, "system.") === 0)
		{
			$dmap=$GLOBALS['_xmlrpcs_dmap']; $sysCall=1;
		}
		else
		{
			$dmap=$server->dmap; $sysCall=0;
		}
		if(isset($dmap[$methName]))
		{
			if(isset($dmap[$methName]['signature']))
			{
				$sigs=array();
				foreach($dmap[$methName]['signature'] as $inSig)
				{
					$cursig=array();
					foreach($inSig as $sig)
					{
						$cursig[]=new xmlrpcval($sig, 'string');
					}
					$sigs[]=new xmlrpcval($cursig, 'array');
				}
				$r=new xmlrpcresp(new xmlrpcval($sigs, 'array'));
			}
			else
			{
				// NB: according to the official docs, we should be returning a
				// "none-array" here, which means not-an-array
				$r=new xmlrpcresp(new xmlrpcval('undef', 'string'));
			}
		}
		else
		{
			$r=new xmlrpcresp(0,$GLOBALS['xmlrpcerr']['introspect_unknown'], $GLOBALS['xmlrpcstr']['introspect_unknown']);
		}
		return $r;
	}

	$_xmlrpcs_methodHelp_sig=array(array($GLOBALS['xmlrpcString'], $GLOBALS['xmlrpcString']));
	$_xmlrpcs_methodHelp_doc='Returns help text if defined for the method passed, otherwise returns an empty string';
	$_xmlrpcs_methodHelp_sdoc=array(array('method description', 'name of the method to be described'));
	function _xmlrpcs_methodHelp($server, $m)
	{
		// let accept as parameter both an xmlrpcval or string
		if (is_object($m))
		{
			$methName=$m->getParam(0);
			$methName=$methName->scalarval();
		}
		else
		{
			$methName=$m;
		}
		if(strpos($methName, "system.") === 0)
		{
			$dmap=$GLOBALS['_xmlrpcs_dmap']; $sysCall=1;
		}
		else
		{
			$dmap=$server->dmap; $sysCall=0;
		}
		if(isset($dmap[$methName]))
		{
			if(isset($dmap[$methName]['docstring']))
			{
				$r=new xmlrpcresp(new xmlrpcval($dmap[$methName]['docstring']), 'string');
			}
			else
			{
				$r=new xmlrpcresp(new xmlrpcval('', 'string'));
			}
		}
		else
		{
			$r=new xmlrpcresp(0, $GLOBALS['xmlrpcerr']['introspect_unknown'], $GLOBALS['xmlrpcstr']['introspect_unknown']);
		}
		return $r;
	}

	$_xmlrpcs_multicall_sig = array(array($GLOBALS['xmlrpcArray'], $GLOBALS['xmlrpcArray']));
	$_xmlrpcs_multicall_doc = 'Boxcar multiple RPC calls in one request. See http://www.xmlrpc.com/discuss/msgReader$1208 for details';
	$_xmlrpcs_multicall_sdoc = array(array('list of response structs, where each struct has the usual members', 'list of calls, with each call being represented as a struct, with members "methodname" and "params"'));
	function _xmlrpcs_multicall_error($err)
	{
		if(is_string($err))
		{
			$str = $GLOBALS['xmlrpcstr']["multicall_${err}"];
			$code = $GLOBALS['xmlrpcerr']["multicall_${err}"];
		}
		else
		{
			$code = $err->faultCode();
			$str = $err->faultString();
		}
		$struct = array();
		$struct['faultCode'] = new xmlrpcval($code, 'int');
		$struct['faultString'] = new xmlrpcval($str, 'string');
		return new xmlrpcval($struct, 'struct');
	}

	function _xmlrpcs_multicall_do_call($server, $call)
	{
		if($call->kindOf() != 'struct')
		{
			return _xmlrpcs_multicall_error('notstruct');
		}
		$methName = @$call->structmem('methodName');
		if(!$methName)
		{
			return _xmlrpcs_multicall_error('nomethod');
		}
		if($methName->kindOf() != 'scalar' || $methName->scalartyp() != 'string')
		{
			return _xmlrpcs_multicall_error('notstring');
		}
		if($methName->scalarval() == 'system.multicall')
		{
			return _xmlrpcs_multicall_error('recursion');
		}

		$params = @$call->structmem('params');
		if(!$params)
		{
			return _xmlrpcs_multicall_error('noparams');
		}
		if($params->kindOf() != 'array')
		{
			return _xmlrpcs_multicall_error('notarray');
		}
		$numParams = $params->arraysize();

		$msg = new xmlrpcmsg($methName->scalarval());
		for($i = 0; $i < $numParams; $i++)
		{
			if(!$msg->addParam($params->arraymem($i)))
			{
				$i++;
				return _xmlrpcs_multicall_error(new xmlrpcresp(0,
					$GLOBALS['xmlrpcerr']['incorrect_params'],
					$GLOBALS['xmlrpcstr']['incorrect_params'] . ": probable xml error in param " . $i));
			}
		}

		$result = $server->execute($msg);

		if($result->faultCode() != 0)
		{
			return _xmlrpcs_multicall_error($result);		// Method returned fault.
		}

		return new xmlrpcval(array($result->value()), 'array');
	}

	function _xmlrpcs_multicall_do_call_phpvals($server, $call)
	{
		if(!is_array($call))
		{
			return _xmlrpcs_multicall_error('notstruct');
		}
		if(!array_key_exists('methodName', $call))
		{
			return _xmlrpcs_multicall_error('nomethod');
		}
		if (!is_string($call['methodName']))
		{
			return _xmlrpcs_multicall_error('notstring');
		}
		if($call['methodName'] == 'system.multicall')
		{
			return _xmlrpcs_multicall_error('recursion');
		}
		if(!array_key_exists('params', $call))
		{
			return _xmlrpcs_multicall_error('noparams');
		}
		if(!is_array($call['params']))
		{
			return _xmlrpcs_multicall_error('notarray');
		}

		// this is a real dirty and simplistic hack, since we might have received a
		// base64 or datetime values, but they will be listed as strings here...
		$numParams = count($call['params']);
		$pt = array();
		foreach($call['params'] as $val)
			$pt[] = php_2_xmlrpc_type(gettype($val));

		$result = $server->execute($call['methodName'], $call['params'], $pt);

		if($result->faultCode() != 0)
		{
			return _xmlrpcs_multicall_error($result);		// Method returned fault.
		}

		return new xmlrpcval(array($result->value()), 'array');
	}

	function _xmlrpcs_multicall($server, $m)
	{
		$result = array();
		// let accept a plain list of php parameters, beside a single xmlrpc msg object
		if (is_object($m))
		{
			$calls = $m->getParam(0);
			$numCalls = $calls->arraysize();
			for($i = 0; $i < $numCalls; $i++)
			{
				$call = $calls->arraymem($i);
				$result[$i] = _xmlrpcs_multicall_do_call($server, $call);
			}
		}
		else
		{
			$numCalls=count($m);
			for($i = 0; $i < $numCalls; $i++)
			{
				$result[$i] = _xmlrpcs_multicall_do_call_phpvals($server, $m[$i]);
			}
		}

		return new xmlrpcresp(new xmlrpcval($result, 'array'));
	}

	$GLOBALS['_xmlrpcs_dmap']=array(
		'system.listMethods' => array(
			'function' => '_xmlrpcs_listMethods',
			'signature' => $_xmlrpcs_listMethods_sig,
			'docstring' => $_xmlrpcs_listMethods_doc,
			'signature_docs' => $_xmlrpcs_listMethods_sdoc),
		'system.methodHelp' => array(
			'function' => '_xmlrpcs_methodHelp',
			'signature' => $_xmlrpcs_methodHelp_sig,
			'docstring' => $_xmlrpcs_methodHelp_doc,
			'signature_docs' => $_xmlrpcs_methodHelp_sdoc),
		'system.methodSignature' => array(
			'function' => '_xmlrpcs_methodSignature',
			'signature' => $_xmlrpcs_methodSignature_sig,
			'docstring' => $_xmlrpcs_methodSignature_doc,
			'signature_docs' => $_xmlrpcs_methodSignature_sdoc),
		'system.multicall' => array(
			'function' => '_xmlrpcs_multicall',
			'signature' => $_xmlrpcs_multicall_sig,
			'docstring' => $_xmlrpcs_multicall_doc,
			'signature_docs' => $_xmlrpcs_multicall_sdoc),
		'system.getCapabilities' => array(
			'function' => '_xmlrpcs_getCapabilities',
			'signature' => $_xmlrpcs_getCapabilities_sig,
			'docstring' => $_xmlrpcs_getCapabilities_doc,
			'signature_docs' => $_xmlrpcs_getCapabilities_sdoc)
	);

	$GLOBALS['_xmlrpcs_occurred_errors'] = '';
	$GLOBALS['_xmlrpcs_prev_ehandler'] = '';

	/**
	* Error handler used to track errors that occur during server-side execution of PHP code.
	* This allows to report back to the client whether an internal error has occurred or not
	* using an xmlrpc response object, instead of letting the client deal with the html junk
	* that a PHP execution error on the server generally entails.
	*
	* NB: in fact a user defined error handler can only handle WARNING, NOTICE and USER_* errors.
	*
	*/
	function _xmlrpcs_errorHandler($errcode, $errstring, $filename=null, $lineno=null, $context=null)
	{
		// obey the @ protocol
		if (error_reporting() == 0)
			return;

		//if($errcode != E_NOTICE && $errcode != E_WARNING && $errcode != E_USER_NOTICE && $errcode != E_USER_WARNING)
		if($errcode != E_STRICT)
		{
			$GLOBALS['_xmlrpcs_occurred_errors'] = $GLOBALS['_xmlrpcs_occurred_errors'] . $errstring . "\n";
		}
		// Try to avoid as much as possible disruption to the previous error handling
		// mechanism in place
		if($GLOBALS['_xmlrpcs_prev_ehandler'] == '')
		{
			// The previous error handler was the default: all we should do is log error
			// to the default error log (if level high enough)
			if(ini_get('log_errors') && (intval(ini_get('error_reporting')) & $errcode))
			{
				error_log($errstring);
			}
		}
		else
		{
			// Pass control on to previous error handler, trying to avoid loops...
			if($GLOBALS['_xmlrpcs_prev_ehandler'] != '_xmlrpcs_errorHandler')
			{
				// NB: this code will NOT work on php < 4.0.2: only 2 params were used for error handlers
				if(is_array($GLOBALS['_xmlrpcs_prev_ehandler']))
				{
					// the following works both with static class methods and plain object methods as error handler
					call_user_func_array($GLOBALS['_xmlrpcs_prev_ehandler'], array($errcode, $errstring, $filename, $lineno, $context));
				}
				else
				{
					$GLOBALS['_xmlrpcs_prev_ehandler']($errcode, $errstring, $filename, $lineno, $context);
				}
			}
		}
	}

	$GLOBALS['_xmlrpc_debuginfo']='';

	/**
	* Add a string to the debug info that can be later seralized by the server
	* as part of the response message.
	* Note that for best compatbility, the debug string should be encoded using
	* the $GLOBALS['xmlrpc_internalencoding'] character set.
	* @param string $m
	* @access public
	*/
	function xmlrpc_debugmsg($m)
	{
		$GLOBALS['_xmlrpc_debuginfo'] .= $m . "\n";
	}

	class xmlrpc_server
	{
		/**
		* Array defining php functions exposed as xmlrpc methods by this server
		* @access private
		*/
		var $dmap=array();
		/**
		* Defines how functions in dmap will be invoked: either using an xmlrpc msg object
		* or plain php values.
		* valid strings are 'xmlrpcvals', 'phpvals' or 'epivals'
		*/
		var $functions_parameters_type='xmlrpcvals';
		/**
		* Option used for fine-tuning the encoding the php values returned from
		* functions registered in the dispatch map when the functions_parameters_types
		* member is set to 'phpvals'
		* @see php_xmlrpc_encode for a list of values
		*/
		var $phpvals_encoding_options = array( 'auto_dates' );
		/// controls wether the server is going to echo debugging messages back to the client as comments in response body. valid values: 0,1,2,3
		var $debug = 1;
		/**
		* Controls behaviour of server when invoked user function throws an exception:
		* 0 = catch it and return an 'internal error' xmlrpc response (default)
		* 1 = catch it and return an xmlrpc response with the error corresponding to the exception
		* 2 = allow the exception to float to the upper layers
		*/
		var $exception_handling = 0;
		/**
		* When set to true, it will enable HTTP compression of the response, in case
		* the client has declared its support for compression in the request.
		*/
		var $compress_response = false;
		/**
		* List of http compression methods accepted by the server for requests.
		* NB: PHP supports deflate, gzip compressions out of the box if compiled w. zlib
		*/
		var $accepted_compression = array();
		/// shall we serve calls to system.* methods?
		var $allow_system_funcs = true;
		/// list of charset encodings natively accepted for requests
		var $accepted_charset_encodings = array();
		/**
		* charset encoding to be used for response.
		* NB: if we can, we will convert the generated response from internal_encoding to the intended one.
		* can be: a supported xml encoding (only UTF-8 and ISO-8859-1 at present, unless mbstring is enabled),
		* null (leave unspecified in response, convert output stream to US_ASCII),
		* 'default' (use xmlrpc library default as specified in xmlrpc.inc, convert output stream if needed),
		* or 'auto' (use client-specified charset encoding or same as request if request headers do not specify it (unless request is US-ASCII: then use library default anyway).
		* NB: pretty dangerous if you accept every charset and do not have mbstring enabled)
		*/
		var $response_charset_encoding = '';
		/**
		* Storage for internal debug info
		* @access private
		*/
		var $debug_info = '';
		/**
		* Extra data passed at runtime to method handling functions. Used only by EPI layer
		*/
		var $user_data = null;

		/**
		* @param array $dispmap the dispatch map withd efinition of exposed services
		* @param boolean $servicenow set to false to prevent the server from runnung upon construction
		*/
		function xmlrpc_server($dispMap=null, $serviceNow=true)
		{
			// if ZLIB is enabled, let the server by default accept compressed requests,
			// and compress responses sent to clients that support them
			if(function_exists('gzinflate'))
			{
				$this->accepted_compression = array('gzip', 'deflate');
				$this->compress_response = true;
			}

			// by default the xml parser can support these 3 charset encodings
			$this->accepted_charset_encodings = array('UTF-8', 'ISO-8859-1', 'US-ASCII');

			// dispMap is a dispatch array of methods
			// mapped to function names and signatures
			// if a method
			// doesn't appear in the map then an unknown
			// method error is generated
			/* milosch - changed to make passing dispMap optional.
			 * instead, you can use the class add_to_map() function
			 * to add functions manually (borrowed from SOAPX4)
			 */
			if($dispMap)
			{
				$this->dmap = $dispMap;
				if($serviceNow)
				{
					$this->service();
				}
			}
		}

		/**
		* Set debug level of server.
		* @param integer $in debug lvl: determines info added to xmlrpc responses (as xml comments)
		* 0 = no debug info,
		* 1 = msgs set from user with debugmsg(),
		* 2 = add complete xmlrpc request (headers and body),
		* 3 = add also all processing warnings happened during method processing
		* (NB: this involves setting a custom error handler, and might interfere
		* with the standard processing of the php function exposed as method. In
		* particular, triggering an USER_ERROR level error will not halt script
		* execution anymore, but just end up logged in the xmlrpc response)
		* Note that info added at elevel 2 and 3 will be base64 encoded
		* @access public
		*/
		function setDebug($in)
		{
			$this->debug=$in;
		}

		/**
		* Return a string with the serialized representation of all debug info
		* @param string $charset_encoding the target charset encoding for the serialization
		* @return string an XML comment (or two)
		*/
		function serializeDebug($charset_encoding='')
		{
			// Tough encoding problem: which internal charset should we assume for debug info?
			// It might contain a copy of raw data received from client, ie with unknown encoding,
			// intermixed with php generated data and user generated data...
			// so we split it: system debug is base 64 encoded,
			// user debug info should be encoded by the end user using the INTERNAL_ENCODING
			$out = '';
			if ($this->debug_info != '')
			{
				$out .= "<!-- SERVER DEBUG INFO (BASE64 ENCODED):\n".base64_encode($this->debug_info)."\n-->\n";
			}
			if($GLOBALS['_xmlrpc_debuginfo']!='')
			{

				$out .= "<!-- DEBUG INFO:\n" . xmlrpc_encode_entitites(str_replace('--', '_-', $GLOBALS['_xmlrpc_debuginfo']), $GLOBALS['xmlrpc_internalencoding'], $charset_encoding) . "\n-->\n";
				// NB: a better solution MIGHT be to use CDATA, but we need to insert it
				// into return payload AFTER the beginning tag
				//$out .= "<![CDATA[ DEBUG INFO:\n\n" . str_replace(']]>', ']_]_>', $GLOBALS['_xmlrpc_debuginfo']) . "\n]]>\n";
			}
			return $out;
		}

		/**
		* Execute the xmlrpc request, printing the response
		* @param string $data the request body. If null, the http POST request will be examined
		* @return xmlrpcresp the response object (usually not used by caller...)
		* @access public
		*/
		function service($data=null, $return_payload=false)
		{
			if ($data === null)
			{
				// workaround for a known bug in php ver. 5.2.2 that broke $HTTP_RAW_POST_DATA
				$ver = phpversion();
				if ($ver[0] >= 5)
				{
					$data = file_get_contents('php://input');
				}
				else
				{
					$data = isset($GLOBALS['HTTP_RAW_POST_DATA']) ? $GLOBALS['HTTP_RAW_POST_DATA'] : '';
				}
			}
			$raw_data = $data;

			// reset internal debug info
			$this->debug_info = '';

			// Echo back what we received, before parsing it
			if($this->debug > 1)
			{
				$this->debugmsg("+++GOT+++\n" . $data . "\n+++END+++");
			}

			$r = $this->parseRequestHeaders($data, $req_charset, $resp_charset, $resp_encoding);
			if (!$r)
			{
				$r=$this->parseRequest($data, $req_charset);
			}

			// save full body of request into response, for more debugging usages
			$r->raw_data = $raw_data;

			if($this->debug > 2 && $GLOBALS['_xmlrpcs_occurred_errors'])
			{
				$this->debugmsg("+++PROCESSING ERRORS AND WARNINGS+++\n" .
					$GLOBALS['_xmlrpcs_occurred_errors'] . "+++END+++");
			}

			$payload=$this->xml_header($resp_charset);
			if($this->debug > 0)
			{
				$payload = $payload . $this->serializeDebug($resp_charset);
			}

			// G. Giunta 2006-01-27: do not create response serialization if it has
			// already happened. Helps building json magic
			if (empty($r->payload))
			{
				$r->serialize($resp_charset);
			}
			$payload = $payload . $r->payload;

			if ($return_payload)
			{
				return $payload;
			}

			// if we get a warning/error that has output some text before here, then we cannot
			// add a new header. We cannot say we are sending xml, either...
			if(!headers_sent())
			{
				header('Content-Type: '.$r->content_type);
				// we do not know if client actually told us an accepted charset, but if he did
				// we have to tell him what we did
				header("Vary: Accept-Charset");

				// http compression of output: only
				// if we can do it, and we want to do it, and client asked us to,
				// and php ini settings do not force it already
				$php_no_self_compress = !ini_get('zlib.output_compression') && (ini_get('output_handler') != 'ob_gzhandler');
				if($this->compress_response && function_exists('gzencode') && $resp_encoding != ''
					&& $php_no_self_compress)
				{
					if(strpos($resp_encoding, 'gzip') !== false)
					{
						$payload = gzencode($payload);
						header("Content-Encoding: gzip");
						header("Vary: Accept-Encoding");
					}
					elseif (strpos($resp_encoding, 'deflate') !== false)
					{
						$payload = gzcompress($payload);
						header("Content-Encoding: deflate");
						header("Vary: Accept-Encoding");
					}
				}

				// do not ouput content-length header if php is compressing output for us:
				// it will mess up measurements
				if($php_no_self_compress)
				{
					header('Content-Length: ' . (int)strlen($payload));
				}
			}
			else
			{
				error_log('XML-RPC: '.__METHOD__.': http headers already sent before response is fully generated. Check for php warning or error messages');
			}

			print $payload;

			// return request, in case subclasses want it
			return $r;
		}

		/**
		* Add a method to the dispatch map
		* @param string $methodname the name with which the method will be made available
		* @param string $function the php function that will get invoked
		* @param array $sig the array of valid method signatures
		* @param string $doc method documentation
		* @param array $sigdoc the array of valid method signatures docs (one string per param, one for return type)
		* @access public
		*/
		function add_to_map($methodname,$function,$sig=null,$doc=false,$sigdoc=false)
		{
			$this->dmap[$methodname] = array(
				'function'	=> $function,
				'docstring' => $doc
			);
			if ($sig)
			{
				$this->dmap[$methodname]['signature'] = $sig;
			}
			if ($sigdoc)
			{
				$this->dmap[$methodname]['signature_docs'] = $sigdoc;
			}
		}

		/**
		* Verify type and number of parameters received against a list of known signatures
		* @param array $in array of either xmlrpcval objects or xmlrpc type definitions
		* @param array $sig array of known signatures to match against
		* @access private
		*/
		function verifySignature($in, $sig)
		{
			// check each possible signature in turn
			if (is_object($in))
			{
				$numParams = $in->getNumParams();
			}
			else
			{
				$numParams = count($in);
			}
			foreach($sig as $cursig)
			{
				if(count($cursig)==$numParams+1)
				{
					$itsOK=1;
					for($n=0; $n<$numParams; $n++)
					{
						if (is_object($in))
						{
							$p=$in->getParam($n);
							if($p->kindOf() == 'scalar')
							{
								$pt=$p->scalartyp();
							}
							else
							{
								$pt=$p->kindOf();
							}
						}
						else
						{
							$pt= $in[$n] == 'i4' ? 'int' : strtolower($in[$n]); // dispatch maps never use i4...
						}

						// param index is $n+1, as first member of sig is return type
						if($pt != $cursig[$n+1] && $cursig[$n+1] != $GLOBALS['xmlrpcValue'])
						{
							$itsOK=0;
							$pno=$n+1;
							$wanted=$cursig[$n+1];
							$got=$pt;
							break;
						}
					}
					if($itsOK)
					{
						return array(1,'');
					}
				}
			}
			if(isset($wanted))
			{
				return array(0, "Wanted ${wanted}, got ${got} at param ${pno}");
			}
			else
			{
				return array(0, "No method signature matches number of parameters");
			}
		}

		/**
		* Parse http headers received along with xmlrpc request. If needed, inflate request
		* @return null on success or an xmlrpcresp
		* @access private
		*/
		function parseRequestHeaders(&$data, &$req_encoding, &$resp_encoding, &$resp_compression)
		{
			// check if $_SERVER is populated: it might have been disabled via ini file
			// (this is true even when in CLI mode)
			if (count($_SERVER) == 0)
			{
				error_log('XML-RPC: '.__METHOD__.': cannot parse request headers as $_SERVER is not populated');
			}

			if($this->debug > 1)
			{
				if(function_exists('getallheaders'))
				{
					$this->debugmsg(''); // empty line
					foreach(getallheaders() as $name => $val)
					{
						$this->debugmsg("HEADER: $name: $val");
					}
				}

			}

			if(isset($_SERVER['HTTP_CONTENT_ENCODING']))
			{
				$content_encoding = str_replace('x-', '', $_SERVER['HTTP_CONTENT_ENCODING']);
			}
			else
			{
				$content_encoding = '';
			}

			// check if request body has been compressed and decompress it
			if($content_encoding != '' && strlen($data))
			{
				if($content_encoding == 'deflate' || $content_encoding == 'gzip')
				{
					// if decoding works, use it. else assume data wasn't gzencoded
					if(function_exists('gzinflate') && in_array($content_encoding, $this->accepted_compression))
					{
						if($content_encoding == 'deflate' && $degzdata = @gzuncompress($data))
						{
							$data = $degzdata;
							if($this->debug > 1)
							{
								$this->debugmsg("\n+++INFLATED REQUEST+++[".strlen($data)." chars]+++\n" . $data . "\n+++END+++");
							}
						}
						elseif($content_encoding == 'gzip' && $degzdata = @gzinflate(substr($data, 10)))
						{
							$data = $degzdata;
							if($this->debug > 1)
								$this->debugmsg("+++INFLATED REQUEST+++[".strlen($data)." chars]+++\n" . $data . "\n+++END+++");
						}
						else
						{
							$r = new xmlrpcresp(0, $GLOBALS['xmlrpcerr']['server_decompress_fail'], $GLOBALS['xmlrpcstr']['server_decompress_fail']);
							return $r;
						}
					}
					else
					{
						//error_log('The server sent deflated data. Your php install must have the Zlib extension compiled in to support this.');
						$r = new xmlrpcresp(0, $GLOBALS['xmlrpcerr']['server_cannot_decompress'], $GLOBALS['xmlrpcstr']['server_cannot_decompress']);
						return $r;
					}
				}
			}

			// check if client specified accepted charsets, and if we know how to fulfill
			// the request
			if ($this->response_charset_encoding == 'auto')
			{
				$resp_encoding = '';
				if (isset($_SERVER['HTTP_ACCEPT_CHARSET']))
				{
					// here we should check if we can match the client-requested encoding
					// with the encodings we know we can generate.
					/// @todo we should parse q=0.x preferences instead of getting first charset specified...
					$client_accepted_charsets = explode(',', strtoupper($_SERVER['HTTP_ACCEPT_CHARSET']));
					// Give preference to internal encoding
					$known_charsets = array($GLOBALS['xmlrpc_internalencoding'], 'UTF-8', 'ISO-8859-1', 'US-ASCII');
					foreach ($known_charsets as $charset)
					{
						foreach ($client_accepted_charsets as $accepted)
							if (strpos($accepted, $charset) === 0)
							{
								$resp_encoding = $charset;
								break;
							}
						if ($resp_encoding)
							break;
					}
				}
			}
			else
			{
				$resp_encoding = $this->response_charset_encoding;
			}

			if (isset($_SERVER['HTTP_ACCEPT_ENCODING']))
			{
				$resp_compression = $_SERVER['HTTP_ACCEPT_ENCODING'];
			}
			else
			{
				$resp_compression = '';
			}

			// 'guestimate' request encoding
			/// @todo check if mbstring is enabled and automagic input conversion is on: it might mingle with this check???
			$req_encoding = guess_encoding(isset($_SERVER['CONTENT_TYPE']) ? $_SERVER['CONTENT_TYPE'] : '',
				$data);

			return null;
		}

		/**
		* Parse an xml chunk containing an xmlrpc request and execute the corresponding
		* php function registered with the server
		* @param string $data the xml request
		* @param string $req_encoding (optional) the charset encoding of the xml request
		* @return xmlrpcresp
		* @access private
		*/
		function parseRequest($data, $req_encoding='')
		{
			// 2005/05/07 commented and moved into caller function code
			//if($data=='')
			//{
			//	$data=$GLOBALS['HTTP_RAW_POST_DATA'];
			//}

			// G. Giunta 2005/02/13: we do NOT expect to receive html entities
			// so we do not try to convert them into xml character entities
			//$data = xmlrpc_html_entity_xlate($data);

			$GLOBALS['_xh']=array();
			$GLOBALS['_xh']['ac']='';
			$GLOBALS['_xh']['stack']=array();
			$GLOBALS['_xh']['valuestack'] = array();
			$GLOBALS['_xh']['params']=array();
			$GLOBALS['_xh']['pt']=array();
			$GLOBALS['_xh']['isf']=0;
			$GLOBALS['_xh']['isf_reason']='';
			$GLOBALS['_xh']['method']=false; // so we can check later if we got a methodname or not
			$GLOBALS['_xh']['rt']='';

			// decompose incoming XML into request structure
			if ($req_encoding != '')
			{
				if (!in_array($req_encoding, array('UTF-8', 'ISO-8859-1', 'US-ASCII')))
				// the following code might be better for mb_string enabled installs, but
				// makes the lib about 200% slower...
				//if (!is_valid_charset($req_encoding, array('UTF-8', 'ISO-8859-1', 'US-ASCII')))
				{
					error_log('XML-RPC: '.__METHOD__.': invalid charset encoding of received request: '.$req_encoding);
					$req_encoding = $GLOBALS['xmlrpc_defencoding'];
				}
				/// @BUG this will fail on PHP 5 if charset is not specified in the xml prologue,
				// the encoding is not UTF8 and there are non-ascii chars in the text...
				/// @todo use an ampty string for php 5 ???
				$parser = xml_parser_create($req_encoding);
			}
			else
			{
				$parser = xml_parser_create();
			}

			xml_parser_set_option($parser, XML_OPTION_CASE_FOLDING, true);
			// G. Giunta 2005/02/13: PHP internally uses ISO-8859-1, so we have to tell
			// the xml parser to give us back data in the expected charset
			// What if internal encoding is not in one of the 3 allowed?
			// we use the broadest one, ie. utf8
			// This allows to send data which is native in various charset,
			// by extending xmlrpc_encode_entitites() and setting xmlrpc_internalencoding
			if (!in_array($GLOBALS['xmlrpc_internalencoding'], array('UTF-8', 'ISO-8859-1', 'US-ASCII')))
			{
				xml_parser_set_option($parser, XML_OPTION_TARGET_ENCODING, 'UTF-8');
			}
			else
			{
				xml_parser_set_option($parser, XML_OPTION_TARGET_ENCODING, $GLOBALS['xmlrpc_internalencoding']);
			}

			if ($this->functions_parameters_type != 'xmlrpcvals')
				xml_set_element_handler($parser, 'xmlrpc_se', 'xmlrpc_ee_fast');
			else
				xml_set_element_handler($parser, 'xmlrpc_se', 'xmlrpc_ee');
			xml_set_character_data_handler($parser, 'xmlrpc_cd');
			xml_set_default_handler($parser, 'xmlrpc_dh');
			if(!xml_parse($parser, $data, 1))
			{
				// return XML error as a faultCode
				$r=new xmlrpcresp(0,
				$GLOBALS['xmlrpcerrxml']+xml_get_error_code($parser),
				sprintf('XML error: %s at line %d, column %d',
					xml_error_string(xml_get_error_code($parser)),
					xml_get_current_line_number($parser), xml_get_current_column_number($parser)));
				xml_parser_free($parser);
			}
			elseif ($GLOBALS['_xh']['isf'])
			{
				xml_parser_free($parser);
				$r=new xmlrpcresp(0,
					$GLOBALS['xmlrpcerr']['invalid_request'],
					$GLOBALS['xmlrpcstr']['invalid_request'] . ' ' . $GLOBALS['_xh']['isf_reason']);
			}
			else
			{
				xml_parser_free($parser);
				// small layering violation in favor of speed and memory usage:
				// we should allow the 'execute' method handle this, but in the
				// most common scenario (xmlrpcvals type server with some methods
				// registered as phpvals) that would mean a useless encode+decode pass
				if ($this->functions_parameters_type != 'xmlrpcvals' || (isset($this->dmap[$GLOBALS['_xh']['method']]['parameters_type']) && ($this->dmap[$GLOBALS['_xh']['method']]['parameters_type'] == 'phpvals')))
				{
					if($this->debug > 1)
					{
						$this->debugmsg("\n+++PARSED+++\n".var_export($GLOBALS['_xh']['params'], true)."\n+++END+++");
					}
					$r = $this->execute($GLOBALS['_xh']['method'], $GLOBALS['_xh']['params'], $GLOBALS['_xh']['pt']);
				}
				else
				{
					// build an xmlrpcmsg object with data parsed from xml
					$m=new xmlrpcmsg($GLOBALS['_xh']['method']);
					// now add parameters in
					for($i=0; $i<count($GLOBALS['_xh']['params']); $i++)
					{
						$m->addParam($GLOBALS['_xh']['params'][$i]);
					}

					if($this->debug > 1)
					{
						$this->debugmsg("\n+++PARSED+++\n".var_export($m, true)."\n+++END+++");
					}
					$r = $this->execute($m);
				}
			}
			return $r;
		}

		/**
		* Execute a method invoked by the client, checking parameters used
		* @param mixed $m either an xmlrpcmsg obj or a method name
		* @param array $params array with method parameters as php types (if m is method name only)
		* @param array $paramtypes array with xmlrpc types of method parameters (if m is method name only)
		* @return xmlrpcresp
		* @access private
		*/
		function execute($m, $params=null, $paramtypes=null)
		{
			if (is_object($m))
			{
				$methName = $m->method();
			}
			else
			{
				$methName = $m;
			}
			$sysCall = $this->allow_system_funcs && (strpos($methName, "system.") === 0);
			$dmap = $sysCall ? $GLOBALS['_xmlrpcs_dmap'] : $this->dmap;

			if(!isset($dmap[$methName]['function']))
			{
				// No such method
				return new xmlrpcresp(0,
					$GLOBALS['xmlrpcerr']['unknown_method'],
					$GLOBALS['xmlrpcstr']['unknown_method']);
			}

			// Check signature
			if(isset($dmap[$methName]['signature']))
			{
				$sig = $dmap[$methName]['signature'];
				if (is_object($m))
				{
					list($ok, $errstr) = $this->verifySignature($m, $sig);
				}
				else
				{
					list($ok, $errstr) = $this->verifySignature($paramtypes, $sig);
				}
				if(!$ok)
				{
					// Didn't match.
					return new xmlrpcresp(
						0,
						$GLOBALS['xmlrpcerr']['incorrect_params'],
						$GLOBALS['xmlrpcstr']['incorrect_params'] . ": ${errstr}"
					);
				}
			}

			$func = $dmap[$methName]['function'];
			// let the 'class::function' syntax be accepted in dispatch maps
			if(is_string($func) && strpos($func, '::'))
			{
				$func = explode('::', $func);
			}
			// verify that function to be invoked is in fact callable
			if(!is_callable($func))
			{
				error_log("XML-RPC: ".__METHOD__.": function $func registered as method handler is not callable");
				return new xmlrpcresp(
					0,
					$GLOBALS['xmlrpcerr']['server_error'],
					$GLOBALS['xmlrpcstr']['server_error'] . ": no function matches method"
				);
			}

			// If debug level is 3, we should catch all errors generated during
			// processing of user function, and log them as part of response
			if($this->debug > 2)
			{
				$GLOBALS['_xmlrpcs_prev_ehandler'] = set_error_handler('_xmlrpcs_errorHandler');
			}
			try
			{
				// Allow mixed-convention servers
				if (is_object($m))
				{
					if($sysCall)
					{
						$r = call_user_func($func, $this, $m);
					}
					else
					{
						$r = call_user_func($func, $m);
					}
					if (!is_a($r, 'xmlrpcresp'))
					{
						error_log("XML-RPC: ".__METHOD__.": function $func registered as method handler does not return an xmlrpcresp object");
						if (is_a($r, 'xmlrpcval'))
						{
							$r = new xmlrpcresp($r);
						}
						else
						{
							$r = new xmlrpcresp(
								0,
								$GLOBALS['xmlrpcerr']['server_error'],
								$GLOBALS['xmlrpcstr']['server_error'] . ": function does not return xmlrpcresp object"
							);
						}
					}
				}
				else
				{
					// call a 'plain php' function
					if($sysCall)
					{
						array_unshift($params, $this);
						$r = call_user_func_array($func, $params);
					}
					else
					{
						// 3rd API convention for method-handling functions: EPI-style
						if ($this->functions_parameters_type == 'epivals')
						{
							$r = call_user_func_array($func, array($methName, $params, $this->user_data));
							// mimic EPI behaviour: if we get an array that looks like an error, make it
							// an eror response
							if (is_array($r) && array_key_exists('faultCode', $r) && array_key_exists('faultString', $r))
							{
								$r = new xmlrpcresp(0, (integer)$r['faultCode'], (string)$r['faultString']);
							}
							else
							{
								// functions using EPI api should NOT return resp objects,
								// so make sure we encode the return type correctly
								$r = new xmlrpcresp(php_xmlrpc_encode($r, array('extension_api')));
							}
						}
						else
						{
							$r = call_user_func_array($func, $params);
						}
					}
					// the return type can be either an xmlrpcresp object or a plain php value...
					if (!is_a($r, 'xmlrpcresp'))
					{
						// what should we assume here about automatic encoding of datetimes
						// and php classes instances???
						$r = new xmlrpcresp(php_xmlrpc_encode($r, $this->phpvals_encoding_options));
					}
				}
			}
			catch(Exception $e)
			{
				// (barring errors in the lib) an uncatched exception happened
				// in the called function, we wrap it in a proper error-response
				switch($this->exception_handling)
				{
					case 2:
						throw $e;
						break;
					case 1:
						$r = new xmlrpcresp(0, $e->getCode(), $e->getMessage());
						break;
					default:
						$r = new xmlrpcresp(0, $GLOBALS['xmlrpcerr']['server_error'], $GLOBALS['xmlrpcstr']['server_error']);
				}
			}
			if($this->debug > 2)
			{
				// note: restore the error handler we found before calling the
				// user func, even if it has been changed inside the func itself
				if($GLOBALS['_xmlrpcs_prev_ehandler'])
				{
					set_error_handler($GLOBALS['_xmlrpcs_prev_ehandler']);
				}
				else
				{
					restore_error_handler();
				}
			}
			return $r;
		}

		/**
		* add a string to the 'internal debug message' (separate from 'user debug message')
		* @param string $strings
		* @access private
		*/
		function debugmsg($string)
		{
			$this->debug_info .= $string."\n";
		}

		/**
		* @access private
		*/
		function xml_header($charset_encoding='')
		{
			if ($charset_encoding != '')
			{
				return "<?xml version=\"1.0\" encoding=\"$charset_encoding\"?" . ">\n";
			}
			else
			{
				return "<?xml version=\"1.0\"?" . ">\n";
			}
		}

		/**
		* A debugging routine: just echoes back the input packet as a string value
		* DEPRECATED!
		*/
		function echoInput()
		{
			$r=new xmlrpcresp(new xmlrpcval( "'Aha said I: '" . $GLOBALS['HTTP_RAW_POST_DATA'], 'string'));
			print $r->serialize();
		}
	}
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// by Edd Dumbill (C) 1999-2002
// <edd@usefulinc.com>
// $Id: xmlrpc.inc,v 1.174 2009/03/16 19:36:38 ggiunta Exp $

// Copyright (c) 1999,2000,2002 Edd Dumbill.
// 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 the "XML-RPC for PHP" 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
// REGENTS 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.

	if(!function_exists('xml_parser_create'))
	{
		// For PHP 4 onward, XML functionality is always compiled-in on windows:
		// no more need to dl-open it. It might have been compiled out on *nix...
		if(strtoupper(substr(PHP_OS, 0, 3) != 'WIN'))
		{
			dl('xml.so');
		}
	}

	// G. Giunta 2005/01/29: declare global these variables,
	// so that xmlrpc.inc will work even if included from within a function
	// Milosch: 2005/08/07 - explicitly request these via $GLOBALS where used.
	$GLOBALS['xmlrpcI4']='i4';
	$GLOBALS['xmlrpcInt']='int';
	$GLOBALS['xmlrpcBoolean']='boolean';
	$GLOBALS['xmlrpcDouble']='double';
	$GLOBALS['xmlrpcString']='string';
	$GLOBALS['xmlrpcDateTime']='dateTime.iso8601';
	$GLOBALS['xmlrpcBase64']='base64';
	$GLOBALS['xmlrpcArray']='array';
	$GLOBALS['xmlrpcStruct']='struct';
	$GLOBALS['xmlrpcValue']='undefined';

	$GLOBALS['xmlrpcTypes']=array(
		$GLOBALS['xmlrpcI4']       => 1,
		$GLOBALS['xmlrpcInt']      => 1,
		$GLOBALS['xmlrpcBoolean']  => 1,
		$GLOBALS['xmlrpcString']   => 1,
		$GLOBALS['xmlrpcDouble']   => 1,
		$GLOBALS['xmlrpcDateTime'] => 1,
		$GLOBALS['xmlrpcBase64']   => 1,
		$GLOBALS['xmlrpcArray']    => 2,
		$GLOBALS['xmlrpcStruct']   => 3
	);

	$GLOBALS['xmlrpc_valid_parents'] = array(
		'VALUE' => array('MEMBER', 'DATA', 'PARAM', 'FAULT'),
		'BOOLEAN' => array('VALUE'),
		'I4' => array('VALUE'),
		'INT' => array('VALUE'),
		'STRING' => array('VALUE'),
		'DOUBLE' => array('VALUE'),
		'DATETIME.ISO8601' => array('VALUE'),
		'BASE64' => array('VALUE'),
		'MEMBER' => array('STRUCT'),
		'NAME' => array('MEMBER'),
		'DATA' => array('ARRAY'),
		'ARRAY' => array('VALUE'),
		'STRUCT' => array('VALUE'),
		'PARAM' => array('PARAMS'),
		'METHODNAME' => array('METHODCALL'),
		'PARAMS' => array('METHODCALL', 'METHODRESPONSE'),
		'FAULT' => array('METHODRESPONSE'),
		'NIL' => array('VALUE'), // only used when extension activated
		'EX:NIL' => array('VALUE') // only used when extension activated
	);

	// define extra types for supporting NULL (useful for json or <NIL/>)
	$GLOBALS['xmlrpcNull']='null';
	$GLOBALS['xmlrpcTypes']['null']=1;

	// Not in use anymore since 2.0. Shall we remove it?
	/// @deprecated
	$GLOBALS['xmlEntities']=array(
		'amp'  => '&',
		'quot' => '"',
		'lt'   => '<',
		'gt'   => '>',
		'apos' => "'"
	);

	// tables used for transcoding different charsets into us-ascii xml

	$GLOBALS['xml_iso88591_Entities']=array();
	$GLOBALS['xml_iso88591_Entities']['in'] = array();
	$GLOBALS['xml_iso88591_Entities']['out'] = array();
	for ($i = 0; $i < 32; $i++)
	{
		$GLOBALS['xml_iso88591_Entities']['in'][] = chr($i);
		$GLOBALS['xml_iso88591_Entities']['out'][] = '&#'.$i.';';
	}
	for ($i = 160; $i < 256; $i++)
	{
		$GLOBALS['xml_iso88591_Entities']['in'][] = chr($i);
		$GLOBALS['xml_iso88591_Entities']['out'][] = '&#'.$i.';';
	}

	/// @todo add to iso table the characters from cp_1252 range, i.e. 128 to 159?
	/// These will NOT be present in true ISO-8859-1, but will save the unwary
	/// windows user from sending junk (though no luck when reciving them...)
  /*
	$GLOBALS['xml_cp1252_Entities']=array();
	for ($i = 128; $i < 160; $i++)
	{
		$GLOBALS['xml_cp1252_Entities']['in'][] = chr($i);
	}
	$GLOBALS['xml_cp1252_Entities']['out'] = array(
		'&#x20AC;', '?',        '&#x201A;', '&#x0192;',
		'&#x201E;', '&#x2026;', '&#x2020;', '&#x2021;',
		'&#x02C6;', '&#x2030;', '&#x0160;', '&#x2039;',
		'&#x0152;', '?',        '&#x017D;', '?',
		'?',        '&#x2018;', '&#x2019;', '&#x201C;',
		'&#x201D;', '&#x2022;', '&#x2013;', '&#x2014;',
		'&#x02DC;', '&#x2122;', '&#x0161;', '&#x203A;',
		'&#x0153;', '?',        '&#x017E;', '&#x0178;'
	);
  */

	$GLOBALS['xmlrpcerr'] = array(
	'unknown_method'=>1,
	'invalid_return'=>2,
	'incorrect_params'=>3,
	'introspect_unknown'=>4,
	'http_error'=>5,
	'no_data'=>6,
	'no_ssl'=>7,
	'curl_fail'=>8,
	'invalid_request'=>15,
	'no_curl'=>16,
	'server_error'=>17,
	'multicall_error'=>18,
	'multicall_notstruct'=>9,
	'multicall_nomethod'=>10,
	'multicall_notstring'=>11,
	'multicall_recursion'=>12,
	'multicall_noparams'=>13,
	'multicall_notarray'=>14,

	'cannot_decompress'=>103,
	'decompress_fail'=>104,
	'dechunk_fail'=>105,
	'server_cannot_decompress'=>106,
	'server_decompress_fail'=>107
	);

	$GLOBALS['xmlrpcstr'] = array(
	'unknown_method'=>'Unknown method',
	'invalid_return'=>'Invalid return payload: enable debugging to examine incoming payload',
	'incorrect_params'=>'Incorrect parameters passed to method',
	'introspect_unknown'=>"Can't introspect: method unknown",
	'http_error'=>"Didn't receive 200 OK from remote server.",
	'no_data'=>'No data received from server.',
	'no_ssl'=>'No SSL support compiled in.',
	'curl_fail'=>'CURL error',
	'invalid_request'=>'Invalid request payload',
	'no_curl'=>'No CURL support compiled in.',
	'server_error'=>'Internal server error',
	'multicall_error'=>'Received from server invalid multicall response',
	'multicall_notstruct'=>'system.multicall expected struct',
	'multicall_nomethod'=>'missing methodName',
	'multicall_notstring'=>'methodName is not a string',
	'multicall_recursion'=>'recursive system.multicall forbidden',
	'multicall_noparams'=>'missing params',
	'multicall_notarray'=>'params is not an array',

	'cannot_decompress'=>'Received from server compressed HTTP and cannot decompress',
	'decompress_fail'=>'Received from server invalid compressed HTTP',
	'dechunk_fail'=>'Received from server invalid chunked HTTP',
	'server_cannot_decompress'=>'Received from client compressed HTTP request and cannot decompress',
	'server_decompress_fail'=>'Received from client invalid compressed HTTP request'
	);

	// The charset encoding used by the server for received messages and
	// by the client for received responses when received charset cannot be determined
	// or is not supported
	$GLOBALS['xmlrpc_defencoding']='UTF-8';

	// The encoding used internally by PHP.
	// String values received as xml will be converted to this, and php strings will be converted to xml
	// as if having been coded with this
	$GLOBALS['xmlrpc_internalencoding']='ISO-8859-1';

	$GLOBALS['xmlrpcName']='XML-RPC for PHP';
	$GLOBALS['xmlrpcVersion']='3.0.0.beta';

	// let user errors start at 800
	$GLOBALS['xmlrpcerruser']=800;
	// let XML parse errors start at 100
	$GLOBALS['xmlrpcerrxml']=100;

	// formulate backslashes for escaping regexp
	// Not in use anymore since 2.0. Shall we remove it?
	/// @deprecated
	$GLOBALS['xmlrpc_backslash']=chr(92).chr(92);

	// set to TRUE to enable correct decoding of <NIL/> and <EX:NIL/> values
	$GLOBALS['xmlrpc_null_extension']=false;

	// set to TRUE to enable encoding of php NULL values to <EX:NIL/> instead of <NIL/>
	$GLOBALS['xmlrpc_null_apache_encoding']=false;

	// used to store state during parsing
	// quick explanation of components:
	//   ac - used to accumulate values
	//   isf - used to indicate a parsing fault (2) or xmlrpcresp fault (1)
	//   isf_reason - used for storing xmlrpcresp fault string
	//   lv - used to indicate "looking for a value": implements
	//        the logic to allow values with no types to be strings
	//   params - used to store parameters in method calls
	//   method - used to store method name
	//   stack - array with genealogy of xml elements names:
	//           used to validate nesting of xmlrpc elements
	$GLOBALS['_xh']=null;

	/**
	* Convert a string to the correct XML representation in a target charset
	* To help correct communication of non-ascii chars inside strings, regardless
	* of the charset used when sending requests, parsing them, sending responses
	* and parsing responses, an option is to convert all non-ascii chars present in the message
	* into their equivalent 'charset entity'. Charset entities enumerated this way
	* are independent of the charset encoding used to transmit them, and all XML
	* parsers are bound to understand them.
	* Note that in the std case we are not sending a charset encoding mime type
	* along with http headers, so we are bound by RFC 3023 to emit strict us-ascii.
	*
	* @todo do a bit of basic benchmarking (strtr vs. str_replace)
	* @todo	make usage of iconv() or recode_string() or mb_string() where available
	*/
	function xmlrpc_encode_entitites($data, $src_encoding='', $dest_encoding='')
	{
		if ($src_encoding == '')
		{
			// lame, but we know no better...
			$src_encoding = $GLOBALS['xmlrpc_internalencoding'];
		}

		switch(strtoupper($src_encoding.'_'.$dest_encoding))
		{
			case 'ISO-8859-1_':
			case 'ISO-8859-1_US-ASCII':
				$escaped_data = str_replace(array('&', '"', "'", '<', '>'), array('&amp;', '&quot;', '&apos;', '&lt;', '&gt;'), $data);
				$escaped_data = str_replace($GLOBALS['xml_iso88591_Entities']['in'], $GLOBALS['xml_iso88591_Entities']['out'], $escaped_data);
				break;
			case 'ISO-8859-1_UTF-8':
				$escaped_data = str_replace(array('&', '"', "'", '<', '>'), array('&amp;', '&quot;', '&apos;', '&lt;', '&gt;'), $data);
				$escaped_data = utf8_encode($escaped_data);
				break;
			case 'ISO-8859-1_ISO-8859-1':
			case 'US-ASCII_US-ASCII':
			case 'US-ASCII_UTF-8':
			case 'US-ASCII_':
			case 'US-ASCII_ISO-8859-1':
			case 'UTF-8_UTF-8':
			//case 'CP1252_CP1252':
				$escaped_data = str_replace(array('&', '"', "'", '<', '>'), array('&amp;', '&quot;', '&apos;', '&lt;', '&gt;'), $data);
				break;
			case 'UTF-8_':
			case 'UTF-8_US-ASCII':
			case 'UTF-8_ISO-8859-1':
	// NB: this will choke on invalid UTF-8, going most likely beyond EOF
	$escaped_data = '';
	// be kind to users creating string xmlrpcvals out of different php types
	$data = (string) $data;
	$ns = strlen ($data);
	for ($nn = 0; $nn < $ns; $nn++)
	{
		$ch = $data[$nn];
		$ii = ord($ch);
		//1 7 0bbbbbbb (127)
		if ($ii < 128)
		{
			/// @todo shall we replace this with a (supposedly) faster str_replace?
			switch($ii){
				case 34:
					$escaped_data .= '&quot;';
					break;
				case 38:
					$escaped_data .= '&amp;';
					break;
				case 39:
					$escaped_data .= '&apos;';
					break;
				case 60:
					$escaped_data .= '&lt;';
					break;
				case 62:
					$escaped_data .= '&gt;';
					break;
				default:
					$escaped_data .= $ch;
			} // switch
		}
		//2 11 110bbbbb 10bbbbbb (2047)
		else if ($ii>>5 == 6)
		{
			$b1 = ($ii & 31);
			$ii = ord($data[$nn+1]);
			$b2 = ($ii & 63);
			$ii = ($b1 * 64) + $b2;
			$ent = sprintf ('&#%d;', $ii);
			$escaped_data .= $ent;
			$nn += 1;
		}
		//3 16 1110bbbb 10bbbbbb 10bbbbbb
		else if ($ii>>4 == 14)
		{
			$b1 = ($ii & 15);
			$ii = ord($data[$nn+1]);
			$b2 = ($ii & 63);
			$ii = ord($data[$nn+2]);
			$b3 = ($ii & 63);
			$ii = ((($b1 * 64) + $b2) * 64) + $b3;
			$ent = sprintf ('&#%d;', $ii);
			$escaped_data .= $ent;
			$nn += 2;
		}
		//4 21 11110bbb 10bbbbbb 10bbbbbb 10bbbbbb
		else if ($ii>>3 == 30)
		{
			$b1 = ($ii & 7);
			$ii = ord($data[$nn+1]);
			$b2 = ($ii & 63);
			$ii = ord($data[$nn+2]);
			$b3 = ($ii & 63);
			$ii = ord($data[$nn+3]);
			$b4 = ($ii & 63);
			$ii = ((((($b1 * 64) + $b2) * 64) + $b3) * 64) + $b4;
			$ent = sprintf ('&#%d;', $ii);
			$escaped_data .= $ent;
			$nn += 3;
		}
	}
				break;
/*
			case 'CP1252_':
			case 'CP1252_US-ASCII':
				$escaped_data = str_replace(array('&', '"', "'", '<', '>'), array('&amp;', '&quot;', '&apos;', '&lt;', '&gt;'), $data);
				$escaped_data = str_replace($GLOBALS['xml_iso88591_Entities']['in'], $GLOBALS['xml_iso88591_Entities']['out'], $escaped_data);
				$escaped_data = str_replace($GLOBALS['xml_cp1252_Entities']['in'], $GLOBALS['xml_cp1252_Entities']['out'], $escaped_data);
				break;
			case 'CP1252_UTF-8':
				$escaped_data = str_replace(array('&', '"', "'", '<', '>'), array('&amp;', '&quot;', '&apos;', '&lt;', '&gt;'), $data);
				/// @todo we could use real UTF8 chars here instead of xml entities... (note that utf_8 encode all allone will NOT convert them)
				$escaped_data = str_replace($GLOBALS['xml_cp1252_Entities']['in'], $GLOBALS['xml_cp1252_Entities']['out'], $escaped_data);
				$escaped_data = utf8_encode($escaped_data);
				break;
			case 'CP1252_ISO-8859-1':
				$escaped_data = str_replace(array('&', '"', "'", '<', '>'), array('&amp;', '&quot;', '&apos;', '&lt;', '&gt;'), $data);
				// we might as well replave all funky chars with a '?' here, but we are kind and leave it to the receiving application layer to decide what to do with these weird entities...
				$escaped_data = str_replace($GLOBALS['xml_cp1252_Entities']['in'], $GLOBALS['xml_cp1252_Entities']['out'], $escaped_data);
				break;
*/
			default:
				$escaped_data = '';
				error_log("Converting from $src_encoding to $dest_encoding: not supported...");
		}
		return $escaped_data;
	}

	/// xml parser handler function for opening element tags
	function xmlrpc_se($parser, $name, $attrs, $accept_single_vals=false)
	{
		// if invalid xmlrpc already detected, skip all processing
		if ($GLOBALS['_xh']['isf'] < 2)
		{
			// check for correct element nesting
			// top level element can only be of 2 types
			/// @todo optimization creep: save this check into a bool variable, instead of using count() every time:
			///       there is only a single top level element in xml anyway
			if (count($GLOBALS['_xh']['stack']) == 0)
			{
				if ($name != 'METHODRESPONSE' && $name != 'METHODCALL' && (
					$name != 'VALUE' && !$accept_single_vals))
				{
					$GLOBALS['_xh']['isf'] = 2;
					$GLOBALS['_xh']['isf_reason'] = 'missing top level xmlrpc element';
					return;
				}
				else
				{
					$GLOBALS['_xh']['rt'] = strtolower($name);
					$GLOBALS['_xh']['rt'] = strtolower($name);
				}
			}
			else
			{
				// not top level element: see if parent is OK
				$parent = end($GLOBALS['_xh']['stack']);
				if (!array_key_exists($name, $GLOBALS['xmlrpc_valid_parents']) || !in_array($parent, $GLOBALS['xmlrpc_valid_parents'][$name]))
				{
					$GLOBALS['_xh']['isf'] = 2;
					$GLOBALS['_xh']['isf_reason'] = "xmlrpc element $name cannot be child of $parent";
					return;
				}
			}

			switch($name)
			{
				// optimize for speed switch cases: most common cases first
				case 'VALUE':
					/// @todo we could check for 2 VALUE elements inside a MEMBER or PARAM element
					$GLOBALS['_xh']['vt']='value'; // indicator: no value found yet
					$GLOBALS['_xh']['ac']='';
					$GLOBALS['_xh']['lv']=1;
					$GLOBALS['_xh']['php_class']=null;
					break;
				case 'I4':
				case 'INT':
				case 'STRING':
				case 'BOOLEAN':
				case 'DOUBLE':
				case 'DATETIME.ISO8601':
				case 'BASE64':
					if ($GLOBALS['_xh']['vt']!='value')
					{
						//two data elements inside a value: an error occurred!
						$GLOBALS['_xh']['isf'] = 2;
						$GLOBALS['_xh']['isf_reason'] = "$name element following a {$GLOBALS['_xh']['vt']} element inside a single value";
						return;
					}
					$GLOBALS['_xh']['ac']=''; // reset the accumulator
					break;
				case 'STRUCT':
				case 'ARRAY':
					if ($GLOBALS['_xh']['vt']!='value')
					{
						//two data elements inside a value: an error occurred!
						$GLOBALS['_xh']['isf'] = 2;
						$GLOBALS['_xh']['isf_reason'] = "$name element following a {$GLOBALS['_xh']['vt']} element inside a single value";
						return;
					}
					// create an empty array to hold child values, and push it onto appropriate stack
					$cur_val = array();
					$cur_val['values'] = array();
					$cur_val['type'] = $name;
					// check for out-of-band information to rebuild php objs
					// and in case it is found, save it
					if (@isset($attrs['PHP_CLASS']))
					{
						$cur_val['php_class'] = $attrs['PHP_CLASS'];
					}
					$GLOBALS['_xh']['valuestack'][] = $cur_val;
					$GLOBALS['_xh']['vt']='data'; // be prepared for a data element next
					break;
				case 'DATA':
					if ($GLOBALS['_xh']['vt']!='data')
					{
						//two data elements inside a value: an error occurred!
						$GLOBALS['_xh']['isf'] = 2;
						$GLOBALS['_xh']['isf_reason'] = "found two data elements inside an array element";
						return;
					}
				case 'METHODCALL':
				case 'METHODRESPONSE':
				case 'PARAMS':
					// valid elements that add little to processing
					break;
				case 'METHODNAME':
				case 'NAME':
					/// @todo we could check for 2 NAME elements inside a MEMBER element
					$GLOBALS['_xh']['ac']='';
					break;
				case 'FAULT':
					$GLOBALS['_xh']['isf']=1;
					break;
				case 'MEMBER':
					$GLOBALS['_xh']['valuestack'][count($GLOBALS['_xh']['valuestack'])-1]['name']=''; // set member name to null, in case we do not find in the xml later on
					//$GLOBALS['_xh']['ac']='';
					// Drop trough intentionally
				case 'PARAM':
					// clear value type, so we can check later if no value has been passed for this param/member
					$GLOBALS['_xh']['vt']=null;
					break;
				case 'NIL':
				case 'EX:NIL':
					if ($GLOBALS['xmlrpc_null_extension'])
					{
						if ($GLOBALS['_xh']['vt']!='value')
						{
							//two data elements inside a value: an error occurred!
							$GLOBALS['_xh']['isf'] = 2;
							$GLOBALS['_xh']['isf_reason'] = "$name element following a {$GLOBALS['_xh']['vt']} element inside a single value";
							return;
						}
						$GLOBALS['_xh']['ac']=''; // reset the accumulator
						break;
					}
					// we do not support the <NIL/> extension, so
					// drop through intentionally
				default:
					/// INVALID ELEMENT: RAISE ISF so that it is later recognized!!!
					$GLOBALS['_xh']['isf'] = 2;
					$GLOBALS['_xh']['isf_reason'] = "found not-xmlrpc xml element $name";
					break;
			}

			// Save current element name to stack, to validate nesting
			$GLOBALS['_xh']['stack'][] = $name;

			/// @todo optimization creep: move this inside the big switch() above
			if($name!='VALUE')
			{
				$GLOBALS['_xh']['lv']=0;
			}
		}
	}

	/// Used in decoding xml chunks that might represent single xmlrpc values
	function xmlrpc_se_any($parser, $name, $attrs)
	{
		xmlrpc_se($parser, $name, $attrs, true);
	}

	/// xml parser handler function for close element tags
	function xmlrpc_ee($parser, $name, $rebuild_xmlrpcvals = true)
	{
		if ($GLOBALS['_xh']['isf'] < 2)
		{
			// push this element name from stack
			// NB: if XML validates, correct opening/closing is guaranteed and
			// we do not have to check for $name == $curr_elem.
			// we also checked for proper nesting at start of elements...
			$curr_elem = array_pop($GLOBALS['_xh']['stack']);

			switch($name)
			{
				case 'VALUE':
					// This if() detects if no scalar was inside <VALUE></VALUE>
					if ($GLOBALS['_xh']['vt']=='value')
					{
						$GLOBALS['_xh']['value']=$GLOBALS['_xh']['ac'];
						$GLOBALS['_xh']['vt']=$GLOBALS['xmlrpcString'];
					}

					if ($rebuild_xmlrpcvals)
					{
						// build the xmlrpc val out of the data received, and substitute it
						$temp = new xmlrpcval($GLOBALS['_xh']['value'], $GLOBALS['_xh']['vt']);
						// in case we got info about underlying php class, save it
						// in the object we're rebuilding
						if (isset($GLOBALS['_xh']['php_class']))
							$temp->_php_class = $GLOBALS['_xh']['php_class'];
						// check if we are inside an array or struct:
						// if value just built is inside an array, let's move it into array on the stack
						$vscount = count($GLOBALS['_xh']['valuestack']);
						if ($vscount && $GLOBALS['_xh']['valuestack'][$vscount-1]['type']=='ARRAY')
						{
							$GLOBALS['_xh']['valuestack'][$vscount-1]['values'][] = $temp;
						}
						else
						{
							$GLOBALS['_xh']['value'] = $temp;
						}
					}
					else
					{
						/// @todo this needs to treat correctly php-serialized objects,
						/// since std deserializing is done by php_xmlrpc_decode,
						/// which we will not be calling...
						if (isset($GLOBALS['_xh']['php_class']))
						{
						}

						// check if we are inside an array or struct:
						// if value just built is inside an array, let's move it into array on the stack
						$vscount = count($GLOBALS['_xh']['valuestack']);
						if ($vscount && $GLOBALS['_xh']['valuestack'][$vscount-1]['type']=='ARRAY')
						{
							$GLOBALS['_xh']['valuestack'][$vscount-1]['values'][] = $GLOBALS['_xh']['value'];
						}
					}
					break;
				case 'BOOLEAN':
				case 'I4':
				case 'INT':
				case 'STRING':
				case 'DOUBLE':
				case 'DATETIME.ISO8601':
				case 'BASE64':
					$GLOBALS['_xh']['vt']=strtolower($name);
					/// @todo: optimization creep - remove the if/elseif cycle below
					/// since the case() in which we are already did that
					if ($name=='STRING')
					{
						$GLOBALS['_xh']['value']=$GLOBALS['_xh']['ac'];
					}
					elseif ($name=='DATETIME.ISO8601')
					{
						if (!preg_match('/^[0-9]{8}T[0-9]{2}:[0-9]{2}:[0-9]{2}$/', $GLOBALS['_xh']['ac']))
						{
							error_log('XML-RPC: invalid value received in DATETIME: '.$GLOBALS['_xh']['ac']);
						}
						$GLOBALS['_xh']['vt']=$GLOBALS['xmlrpcDateTime'];
						$GLOBALS['_xh']['value']=$GLOBALS['_xh']['ac'];
					}
					elseif ($name=='BASE64')
					{
						/// @todo check for failure of base64 decoding / catch warnings
						$GLOBALS['_xh']['value']=base64_decode($GLOBALS['_xh']['ac']);
					}
					elseif ($name=='BOOLEAN')
					{
						// special case here: we translate boolean 1 or 0 into PHP
						// constants true or false.
						// Strings 'true' and 'false' are accepted, even though the
						// spec never mentions them (see eg. Blogger api docs)
						// NB: this simple checks helps a lot sanitizing input, ie no
						// security problems around here
						if ($GLOBALS['_xh']['ac']=='1' || strcasecmp($GLOBALS['_xh']['ac'], 'true') == 0)
						{
							$GLOBALS['_xh']['value']=true;
						}
						else
						{
							// log if receiveing something strange, even though we set the value to false anyway
							if ($GLOBALS['_xh']['ac']!='0' && strcasecmp($GLOBALS['_xh']['ac'], 'false') != 0)
								error_log('XML-RPC: invalid value received in BOOLEAN: '.$GLOBALS['_xh']['ac']);
							$GLOBALS['_xh']['value']=false;
						}
					}
					elseif ($name=='DOUBLE')
					{
						// we have a DOUBLE
						// we must check that only 0123456789-.<space> are characters here
						// NOTE: regexp could be much stricter than this...
						if (!preg_match('/^[+-eE0123456789 \t.]+$/', $GLOBALS['_xh']['ac']))
						{
							/// @todo: find a better way of throwing an error than this!
							error_log('XML-RPC: non numeric value received in DOUBLE: '.$GLOBALS['_xh']['ac']);
							$GLOBALS['_xh']['value']='ERROR_NON_NUMERIC_FOUND';
						}
						else
						{
							// it's ok, add it on
							$GLOBALS['_xh']['value']=(double)$GLOBALS['_xh']['ac'];
						}
					}
					else
					{
						// we have an I4/INT
						// we must check that only 0123456789-<space> are characters here
						if (!preg_match('/^[+-]?[0123456789 \t]+$/', $GLOBALS['_xh']['ac']))
						{
							/// @todo find a better way of throwing an error than this!
							error_log('XML-RPC: non numeric value received in INT: '.$GLOBALS['_xh']['ac']);
							$GLOBALS['_xh']['value']='ERROR_NON_NUMERIC_FOUND';
						}
						else
						{
							// it's ok, add it on
							$GLOBALS['_xh']['value']=(int)$GLOBALS['_xh']['ac'];
						}
					}
					//$GLOBALS['_xh']['ac']=''; // is this necessary?
					$GLOBALS['_xh']['lv']=3; // indicate we've found a value
					break;
				case 'NAME':
					$GLOBALS['_xh']['valuestack'][count($GLOBALS['_xh']['valuestack'])-1]['name'] = $GLOBALS['_xh']['ac'];
					break;
				case 'MEMBER':
					//$GLOBALS['_xh']['ac']=''; // is this necessary?
					// add to array in the stack the last element built,
					// unless no VALUE was found
					if ($GLOBALS['_xh']['vt'])
					{
						$vscount = count($GLOBALS['_xh']['valuestack']);
						$GLOBALS['_xh']['valuestack'][$vscount-1]['values'][$GLOBALS['_xh']['valuestack'][$vscount-1]['name']] = $GLOBALS['_xh']['value'];
					} else
						error_log('XML-RPC: missing VALUE inside STRUCT in received xml');
					break;
				case 'DATA':
					//$GLOBALS['_xh']['ac']=''; // is this necessary?
					$GLOBALS['_xh']['vt']=null; // reset this to check for 2 data elements in a row - even if they're empty
					break;
				case 'STRUCT':
				case 'ARRAY':
					// fetch out of stack array of values, and promote it to current value
					$curr_val = array_pop($GLOBALS['_xh']['valuestack']);
					$GLOBALS['_xh']['value'] = $curr_val['values'];
					$GLOBALS['_xh']['vt']=strtolower($name);
					if (isset($curr_val['php_class']))
					{
						$GLOBALS['_xh']['php_class'] = $curr_val['php_class'];
					}
					break;
				case 'PARAM':
					// add to array of params the current value,
					// unless no VALUE was found
					if ($GLOBALS['_xh']['vt'])
					{
						$GLOBALS['_xh']['params'][]=$GLOBALS['_xh']['value'];
						$GLOBALS['_xh']['pt'][]=$GLOBALS['_xh']['vt'];
					}
					else
						error_log('XML-RPC: missing VALUE inside PARAM in received xml');
					break;
				case 'METHODNAME':
					$GLOBALS['_xh']['method']=preg_replace('/^[\n\r\t ]+/', '', $GLOBALS['_xh']['ac']);
					break;
				case 'NIL':
				case 'EX:NIL':
					if ($GLOBALS['xmlrpc_null_extension'])
					{
						$GLOBALS['_xh']['vt']='null';
						$GLOBALS['_xh']['value']=null;
						$GLOBALS['_xh']['lv']=3;
						break;
					}
					// drop through intentionally if nil extension not enabled
				case 'PARAMS':
				case 'FAULT':
				case 'METHODCALL':
				case 'METHORESPONSE':
					break;
				default:
					// End of INVALID ELEMENT!
					// shall we add an assert here for unreachable code???
					break;
			}
		}
	}

	/// Used in decoding xmlrpc requests/responses without rebuilding xmlrpc values
	function xmlrpc_ee_fast($parser, $name)
	{
		xmlrpc_ee($parser, $name, false);
	}

	/// xml parser handler function for character data
	function xmlrpc_cd($parser, $data)
	{
		// skip processing if xml fault already detected
		if ($GLOBALS['_xh']['isf'] < 2)
		{
			// "lookforvalue==3" means that we've found an entire value
			// and should discard any further character data
			if($GLOBALS['_xh']['lv']!=3)
			{
				// G. Giunta 2006-08-23: useless change of 'lv' from 1 to 2
				//if($GLOBALS['_xh']['lv']==1)
				//{
					// if we've found text and we're just in a <value> then
					// say we've found a value
					//$GLOBALS['_xh']['lv']=2;
				//}
				// we always initialize the accumulator before starting parsing, anyway...
				//if(!@isset($GLOBALS['_xh']['ac']))
				//{
				//	$GLOBALS['_xh']['ac'] = '';
				//}
				$GLOBALS['_xh']['ac'].=$data;
			}
		}
	}

	/// xml parser handler function for 'other stuff', ie. not char data or
	/// element start/end tag. In fact it only gets called on unknown entities...
	function xmlrpc_dh($parser, $data)
	{
		// skip processing if xml fault already detected
		if ($GLOBALS['_xh']['isf'] < 2)
		{
			if(substr($data, 0, 1) == '&' && substr($data, -1, 1) == ';')
			{
				// G. Giunta 2006-08-25: useless change of 'lv' from 1 to 2
				//if($GLOBALS['_xh']['lv']==1)
				//{
				//	$GLOBALS['_xh']['lv']=2;
				//}
				$GLOBALS['_xh']['ac'].=$data;
			}
		}
		return true;
	}

	class xmlrpc_client
	{
		var $path;
		var $server;
		var $port=0;
		var $method='http';
		var $errno;
		var $errstr;
		var $debug=0;
		var $username='';
		var $password='';
		var $authtype=1;
		var $cert='';
		var $certpass='';
		var $cacert='';
		var $cacertdir='';
		var $key='';
		var $keypass='';
		var $verifypeer=true;
		var $verifyhost=1;
		var $no_multicall=false;
		var $proxy='';
		var $proxyport=0;
		var $proxy_user='';
		var $proxy_pass='';
		var $proxy_authtype=1;
		var $cookies=array();
		var $extracurlopts=array();

		/**
		* List of http compression methods accepted by the client for responses.
		* NB: PHP supports deflate, gzip compressions out of the box if compiled w. zlib
		*
		* NNB: you can set it to any non-empty array for HTTP11 and HTTPS, since
		* in those cases it will be up to CURL to decide the compression methods
		* it supports. You might check for the presence of 'zlib' in the output of
		* curl_version() to determine wheter compression is supported or not
		*/
		var $accepted_compression = array();
		/**
		* Name of compression scheme to be used for sending requests.
		* Either null, gzip or deflate
		*/
		var $request_compression = '';
		/**
		* CURL handle: used for keep-alive connections (PHP 4.3.8 up, see:
		* http://curl.haxx.se/docs/faq.html#7.3)
		*/
		var $xmlrpc_curl_handle = null;
		/// Wheter to use persistent connections for http 1.1 and https
		var $keepalive = false;
		/// Charset encodings that can be decoded without problems by the client
		var $accepted_charset_encodings = array();
		/// Charset encoding to be used in serializing request. NULL = use ASCII
		var $request_charset_encoding = '';
		/**
		* Decides the content of xmlrpcresp objects returned by calls to send()
		* valid strings are 'xmlrpcvals', 'phpvals' or 'xml'
		*/
		var $return_type = 'xmlrpcvals';
		/**
		* Sent to servers in http headers
		*/
		var $user_agent;

		/**
		* @param string $path either the complete server URL or the PATH part of the xmlrc server URL, e.g. /xmlrpc/server.php
		* @param string $server the server name / ip address
		* @param integer $port the port the server is listening on, defaults to 80 or 443 depending on protocol used
		* @param string $method the http protocol variant: defaults to 'http', 'https' and 'http11' can be used if CURL is installed
		*/
		function xmlrpc_client($path, $server='', $port='', $method='')
		{
			// allow user to specify all params in $path
			if($server == '' and $port == '' and $method == '')
			{
				$parts = parse_url($path);
				$server = $parts['host'];
				$path = isset($parts['path']) ? $parts['path'] : '';
				if(isset($parts['query']))
				{
					$path .= '?'.$parts['query'];
				}
				if(isset($parts['fragment']))
				{
					$path .= '#'.$parts['fragment'];
				}
				if(isset($parts['port']))
				{
					$port = $parts['port'];
				}
				if(isset($parts['scheme']))
				{
					$method = $parts['scheme'];
				}
				if(isset($parts['user']))
				{
					$this->username = $parts['user'];
				}
				if(isset($parts['pass']))
				{
					$this->password = $parts['pass'];
				}
			}
			if($path == '' || $path[0] != '/')
			{
				$this->path='/'.$path;
			}
			else
			{
				$this->path=$path;
			}
			$this->server=$server;
			if($port != '')
			{
				$this->port=$port;
			}
			if($method != '')
			{
				$this->method=$method;
			}

			// if ZLIB is enabled, let the client by default accept compressed responses
			if(function_exists('gzinflate') || (
				function_exists('curl_init') && (($info = curl_version()) &&
				((is_string($info) && strpos($info, 'zlib') !== null) || isset($info['libz_version'])))
			))
			{
				$this->accepted_compression = array('gzip', 'deflate');
			}

			// keepalives: enabled by default
			$this->keepalive = true;

			// by default the xml parser can support these 3 charset encodings
			$this->accepted_charset_encodings = array('UTF-8', 'ISO-8859-1', 'US-ASCII');

			// initialize user_agent string
			$this->user_agent = $GLOBALS['xmlrpcName'] . ' ' . $GLOBALS['xmlrpcVersion'];
		}

		/**
		* Enables/disables the echoing to screen of the xmlrpc responses received
		* @param integer $debug values 0, 1 and 2 are supported (2 = echo sent msg too, before received response)
		* @access public
		*/
		function setDebug($in)
		{
			$this->debug=$in;
		}

		/**
		* Add some http BASIC AUTH credentials, used by the client to authenticate
		* @param string $u username
		* @param string $p password
		* @param integer $t auth type. See curl_setopt man page for supported auth types. Defaults to CURLAUTH_BASIC (basic auth)
		* @access public
		*/
		function setCredentials($u, $p, $t=1)
		{
			$this->username=$u;
			$this->password=$p;
			$this->authtype=$t;
		}

		/**
		* Add a client-side https certificate
		* @param string $cert
		* @param string $certpass
		* @access public
		*/
		function setCertificate($cert, $certpass)
		{
			$this->cert = $cert;
			$this->certpass = $certpass;
		}

		/**
		* Add a CA certificate to verify server with (see man page about
		* CURLOPT_CAINFO for more details
		* @param string $cacert certificate file name (or dir holding certificates)
		* @param bool $is_dir set to true to indicate cacert is a dir. defaults to false
		* @access public
		*/
		function setCaCertificate($cacert, $is_dir=false)
		{
			if ($is_dir)
			{
				$this->cacertdir = $cacert;
			}
			else
			{
				$this->cacert = $cacert;
			}
		}

		/**
		* Set attributes for SSL communication: private SSL key
		* NB: does not work in older php/curl installs
		* Thanks to Daniel Convissor
		* @param string $key The name of a file containing a private SSL key
		* @param string $keypass The secret password needed to use the private SSL key
		* @access public
		*/
		function setKey($key, $keypass)
		{
			$this->key = $key;
			$this->keypass = $keypass;
		}

		/**
		* Set attributes for SSL communication: verify server certificate
		* @param bool $i enable/disable verification of peer certificate
		* @access public
		*/
		function setSSLVerifyPeer($i)
		{
			$this->verifypeer = $i;
		}

		/**
		* Set attributes for SSL communication: verify match of server cert w. hostname
		* @param int $i
		* @access public
		*/
		function setSSLVerifyHost($i)
		{
			$this->verifyhost = $i;
		}

		/**
		* Set proxy info
		* @param string $proxyhost
		* @param string $proxyport Defaults to 8080 for HTTP and 443 for HTTPS
		* @param string $proxyusername Leave blank if proxy has public access
		* @param string $proxypassword Leave blank if proxy has public access
		* @param int $proxyauthtype set to constant CURLAUTH_NTLM to use NTLM auth with proxy
		* @access public
		*/
		function setProxy($proxyhost, $proxyport, $proxyusername = '', $proxypassword = '', $proxyauthtype = 1)
		{
			$this->proxy = $proxyhost;
			$this->proxyport = $proxyport;
			$this->proxy_user = $proxyusername;
			$this->proxy_pass = $proxypassword;
			$this->proxy_authtype = $proxyauthtype;
		}

		/**
		* Enables/disables reception of compressed xmlrpc responses.
		* Note that enabling reception of compressed responses merely adds some standard
		* http headers to xmlrpc requests. It is up to the xmlrpc server to return
		* compressed responses when receiving such requests.
		* @param string $compmethod either 'gzip', 'deflate', 'any' or ''
		* @access public
		*/
		function setAcceptedCompression($compmethod)
		{
			if ($compmethod == 'any')
				$this->accepted_compression = array('gzip', 'deflate');
			else
				$this->accepted_compression = array($compmethod);
		}

		/**
		* Enables/disables http compression of xmlrpc request.
		* Take care when sending compressed requests: servers might not support them
		* (and automatic fallback to uncompressed requests is not yet implemented)
		* @param string $compmethod either 'gzip', 'deflate' or ''
		* @access public
		*/
		function setRequestCompression($compmethod)
		{
			$this->request_compression = $compmethod;
		}

		/**
		* Adds a cookie to list of cookies that will be sent to server.
		* NB: setting any param but name and value will turn the cookie into a 'version 1' cookie:
		* do not do it unless you know what you are doing
		* @param string $name
		* @param string $value
		* @param string $path
		* @param string $domain
		* @param int $port
		* @access public
		*
		* @todo check correctness of urlencoding cookie value (copied from php way of doing it...)
		*/
		function setCookie($name, $value='', $path='', $domain='', $port=null)
		{
			$this->cookies[$name]['value'] = urlencode($value);
			if ($path || $domain || $port)
			{
				$this->cookies[$name]['path'] = $path;
				$this->cookies[$name]['domain'] = $domain;
				$this->cookies[$name]['port'] = $port;
				$this->cookies[$name]['version'] = 1;
			}
			else
			{
				$this->cookies[$name]['version'] = 0;
			}
		}

		/**
		* Directly set cURL options, for extra flexibility
		* It allows eg. to bind client to a specific IP interface / address
		* @param $options array
		*/
		function SetCurlOptions( $options )
		{
			$this->extracurlopts = $options;
		}

		/**
		* Set user-agent string that will be used by this client instance
		* in http headers sent to the server
		*/
		function SetUserAgent( $agentstring )
		{
			$this->user_agent = $agentstring;
		}

		/**
		* Send an xmlrpc request
		* @param mixed $msg The message object, or an array of messages for using multicall, or the complete xml representation of a request
		* @param integer $timeout Connection timeout, in seconds, If unspecified, a platform specific timeout will apply
		* @param string $method if left unspecified, the http protocol chosen during creation of the object will be used
		* @return xmlrpcresp
		* @access public
		*/
		function& send($msg, $timeout=0, $method='')
		{
			// if user deos not specify http protocol, use native method of this client
			// (i.e. method set during call to constructor)
			if($method == '')
			{
				$method = $this->method;
			}

			if(is_array($msg))
			{
				// $msg is an array of xmlrpcmsg's
				$r = $this->multicall($msg, $timeout, $method);
				return $r;
			}
			elseif(is_string($msg))
			{
				$n = new xmlrpcmsg('');
				$n->payload = $msg;
				$msg = $n;
			}

			// where msg is an xmlrpcmsg
			$msg->debug=$this->debug;

			if($method == 'https')
			{
				$r =& $this->sendPayloadHTTPS(
					$msg,
					$this->server,
					$this->port,
					$timeout,
					$this->username,
					$this->password,
					$this->authtype,
					$this->cert,
					$this->certpass,
					$this->cacert,
					$this->cacertdir,
					$this->proxy,
					$this->proxyport,
					$this->proxy_user,
					$this->proxy_pass,
					$this->proxy_authtype,
					$this->keepalive,
					$this->key,
					$this->keypass
				);
			}
			elseif($method == 'http11')
			{
				$r =& $this->sendPayloadCURL(
					$msg,
					$this->server,
					$this->port,
					$timeout,
					$this->username,
					$this->password,
					$this->authtype,
					null,
					null,
					null,
					null,
					$this->proxy,
					$this->proxyport,
					$this->proxy_user,
					$this->proxy_pass,
					$this->proxy_authtype,
					'http',
					$this->keepalive
				);
			}
			else
			{
				$r =& $this->sendPayloadHTTP10(
					$msg,
					$this->server,
					$this->port,
					$timeout,
					$this->username,
					$this->password,
					$this->authtype,
					$this->proxy,
					$this->proxyport,
					$this->proxy_user,
					$this->proxy_pass,
					$this->proxy_authtype
				);
			}

			return $r;
		}

		/**
		* @access private
		*/
		function &sendPayloadHTTP10($msg, $server, $port, $timeout=0,
			$username='', $password='', $authtype=1, $proxyhost='',
			$proxyport=0, $proxyusername='', $proxypassword='', $proxyauthtype=1)
		{
			if($port==0)
			{
				$port=80;
			}

			// Only create the payload if it was not created previously
			if(empty($msg->payload))
			{
				$msg->createPayload($this->request_charset_encoding);
			}

			$payload = $msg->payload;
			// Deflate request body and set appropriate request headers
			if(function_exists('gzdeflate') && ($this->request_compression == 'gzip' || $this->request_compression == 'deflate'))
			{
				if($this->request_compression == 'gzip')
				{
					$a = @gzencode($payload);
					if($a)
					{
						$payload = $a;
						$encoding_hdr = "Content-Encoding: gzip\r\n";
					}
				}
				else
				{
					$a = @gzcompress($payload);
					if($a)
					{
						$payload = $a;
						$encoding_hdr = "Content-Encoding: deflate\r\n";
					}
				}
			}
			else
			{
				$encoding_hdr = '';
			}

			// thanks to Grant Rauscher <grant7@firstworld.net> for this
			$credentials='';
			if($username!='')
			{
				$credentials='Authorization: Basic ' . base64_encode($username . ':' . $password) . "\r\n";
				if ($authtype != 1)
				{
					error_log('XML-RPC: '.__METHOD__.': warning. Only Basic auth is supported with HTTP 1.0');
				}
			}

			$accepted_encoding = '';
			if(is_array($this->accepted_compression) && count($this->accepted_compression))
			{
				$accepted_encoding = 'Accept-Encoding: ' . implode(', ', $this->accepted_compression) . "\r\n";
			}

			$proxy_credentials = '';
			if($proxyhost)
			{
				if($proxyport == 0)
				{
					$proxyport = 8080;
				}
				$connectserver = $proxyhost;
				$connectport = $proxyport;
				$uri = 'http://'.$server.':'.$port.$this->path;
				if($proxyusername != '')
				{
					if ($proxyauthtype != 1)
					{
						error_log('XML-RPC: '.__METHOD__.': warning. Only Basic auth to proxy is supported with HTTP 1.0');
					}
					$proxy_credentials = 'Proxy-Authorization: Basic ' . base64_encode($proxyusername.':'.$proxypassword) . "\r\n";
				}
			}
			else
			{
				$connectserver = $server;
				$connectport = $port;
				$uri = $this->path;
			}

			// Cookie generation, as per rfc2965 (version 1 cookies) or
			// netscape's rules (version 0 cookies)
			$cookieheader='';
			if (count($this->cookies))
			{
				$version = '';
				foreach ($this->cookies as $name => $cookie)
				{
					if ($cookie['version'])
					{
						$version = ' $Version="' . $cookie['version'] . '";';
						$cookieheader .= ' ' . $name . '="' . $cookie['value'] . '";';
						if ($cookie['path'])
							$cookieheader .= ' $Path="' . $cookie['path'] . '";';
						if ($cookie['domain'])
							$cookieheader .= ' $Domain="' . $cookie['domain'] . '";';
						if ($cookie['port'])
							$cookieheader .= ' $Port="' . $cookie['port'] . '";';
					}
					else
					{
						$cookieheader .= ' ' . $name . '=' . $cookie['value'] . ";";
					}
				}
				$cookieheader = 'Cookie:' . $version . substr($cookieheader, 0, -1) . "\r\n";
			}

			$op= 'POST ' . $uri. " HTTP/1.0\r\n" .
				'User-Agent: ' . $this->user_agent . "\r\n" .
				'Host: '. $server . ':' . $port . "\r\n" .
				$credentials .
				$proxy_credentials .
				$accepted_encoding .
				$encoding_hdr .
				'Accept-Charset: ' . implode(',', $this->accepted_charset_encodings) . "\r\n" .
				$cookieheader .
				'Content-Type: ' . $msg->content_type . "\r\nContent-Length: " .
				strlen($payload) . "\r\n\r\n" .
				$payload;

			if($this->debug > 1)
			{
				print "<PRE>\n---SENDING---\n" . htmlentities($op) . "\n---END---\n</PRE>";
				// let the client see this now in case http times out...
				flush();
			}

			if($timeout>0)
			{
				$fp=@fsockopen($connectserver, $connectport, $this->errno, $this->errstr, $timeout);
			}
			else
			{
				$fp=@fsockopen($connectserver, $connectport, $this->errno, $this->errstr);
			}
			if($fp)
			{
				if($timeout>0 && function_exists('stream_set_timeout'))
				{
					stream_set_timeout($fp, $timeout);
				}
			}
			else
			{
				$this->errstr='Connect error: '.$this->errstr;
				$r=new xmlrpcresp(0, $GLOBALS['xmlrpcerr']['http_error'], $this->errstr . ' (' . $this->errno . ')');
				return $r;
			}

			if(!fputs($fp, $op, strlen($op)))
			{
				fclose($fp);
				$this->errstr='Write error';
				$r=new xmlrpcresp(0, $GLOBALS['xmlrpcerr']['http_error'], $this->errstr);
				return $r;
			}
			else
			{
				// reset errno and errstr on succesful socket connection
				$this->errstr = '';
			}
			// G. Giunta 2005/10/24: close socket before parsing.
			// should yeld slightly better execution times, and make easier recursive calls (e.g. to follow http redirects)
			$ipd='';
			do
			{
				// shall we check for $data === FALSE?
				// as per the manual, it signals an error
				$ipd.=fread($fp, 32768);
			} while(!feof($fp));
			fclose($fp);
			$r =& $msg->parseResponse($ipd, false, $this->return_type);
			return $r;

		}

		/**
		* @access private
		*/
		function &sendPayloadHTTPS($msg, $server, $port, $timeout=0, $username='',
			$password='', $authtype=1, $cert='',$certpass='', $cacert='', $cacertdir='',
			$proxyhost='', $proxyport=0, $proxyusername='', $proxypassword='', $proxyauthtype=1,
			$keepalive=false, $key='', $keypass='')
		{
			$r =& $this->sendPayloadCURL($msg, $server, $port, $timeout, $username,
				$password, $authtype, $cert, $certpass, $cacert, $cacertdir, $proxyhost, $proxyport,
				$proxyusername, $proxypassword, $proxyauthtype, 'https', $keepalive, $key, $keypass);
			return $r;
		}

		/**
		* Contributed by Justin Miller <justin@voxel.net>
		* Requires curl to be built into PHP
		* NB: CURL versions before 7.11.10 cannot use proxy to talk to https servers!
		* @access private
		*/
		function &sendPayloadCURL($msg, $server, $port, $timeout=0, $username='',
			$password='', $authtype=1, $cert='', $certpass='', $cacert='', $cacertdir='',
			$proxyhost='', $proxyport=0, $proxyusername='', $proxypassword='', $proxyauthtype=1, $method='https',
			$keepalive=false, $key='', $keypass='')
		{
			if(!function_exists('curl_init'))
			{
				$this->errstr='CURL unavailable on this install';
				$r=new xmlrpcresp(0, $GLOBALS['xmlrpcerr']['no_curl'], $GLOBALS['xmlrpcstr']['no_curl']);
				return $r;
			}
			if($method == 'https')
			{
				if(($info = curl_version()) &&
					((is_string($info) && strpos($info, 'OpenSSL') === null) || (is_array($info) && !isset($info['ssl_version']))))
				{
					$this->errstr='SSL unavailable on this install';
					$r=new xmlrpcresp(0, $GLOBALS['xmlrpcerr']['no_ssl'], $GLOBALS['xmlrpcstr']['no_ssl']);
					return $r;
				}
			}

			if($port == 0)
			{
				if($method == 'http')
				{
					$port = 80;
				}
				else
				{
					$port = 443;
				}
			}

			// Only create the payload if it was not created previously
			if(empty($msg->payload))
			{
				$msg->createPayload($this->request_charset_encoding);
			}

			// Deflate request body and set appropriate request headers
			$payload = $msg->payload;
			if(function_exists('gzdeflate') && ($this->request_compression == 'gzip' || $this->request_compression == 'deflate'))
			{
				if($this->request_compression == 'gzip')
				{
					$a = @gzencode($payload);
					if($a)
					{
						$payload = $a;
						$encoding_hdr = 'Content-Encoding: gzip';
					}
				}
				else
				{
					$a = @gzcompress($payload);
					if($a)
					{
						$payload = $a;
						$encoding_hdr = 'Content-Encoding: deflate';
					}
				}
			}
			else
			{
				$encoding_hdr = '';
			}

			if($this->debug > 1)
			{
				print "<PRE>\n---SENDING---\n" . htmlentities($payload) . "\n---END---\n</PRE>";
				// let the client see this now in case http times out...
				flush();
			}

			if(!$keepalive || !$this->xmlrpc_curl_handle)
			{
				$curl = curl_init($method . '://' . $server . ':' . $port . $this->path);
				if($keepalive)
				{
					$this->xmlrpc_curl_handle = $curl;
				}
			}
			else
			{
				$curl = $this->xmlrpc_curl_handle;
			}

			// results into variable
			curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);

			if($this->debug)
			{
				curl_setopt($curl, CURLOPT_VERBOSE, 1);
			}
			curl_setopt($curl, CURLOPT_USERAGENT, $this->user_agent);
			// required for XMLRPC: post the data
			curl_setopt($curl, CURLOPT_POST, 1);
			// the data
			curl_setopt($curl, CURLOPT_POSTFIELDS, $payload);

			// return the header too
			curl_setopt($curl, CURLOPT_HEADER, 1);

			// will only work with PHP >= 5.0
			// NB: if we set an empty string, CURL will add http header indicating
			// ALL methods it is supporting. This is possibly a better option than
			// letting the user tell what curl can / cannot do...
			if(is_array($this->accepted_compression) && count($this->accepted_compression))
			{
				//curl_setopt($curl, CURLOPT_ENCODING, implode(',', $this->accepted_compression));
				// empty string means 'any supported by CURL' (shall we catch errors in case CURLOPT_SSLKEY undefined ?)
				if (count($this->accepted_compression) == 1)
				{
					curl_setopt($curl, CURLOPT_ENCODING, $this->accepted_compression[0]);
				}
				else
					curl_setopt($curl, CURLOPT_ENCODING, '');
			}
			// extra headers
			$headers = array('Content-Type: ' . $msg->content_type , 'Accept-Charset: ' . implode(',', $this->accepted_charset_encodings));
			// if no keepalive is wanted, let the server know it in advance
			if(!$keepalive)
			{
				$headers[] = 'Connection: close';
			}
			// request compression header
			if($encoding_hdr)
			{
				$headers[] = $encoding_hdr;
			}

			curl_setopt($curl, CURLOPT_HTTPHEADER, $headers);
			// timeout is borked
			if($timeout)
			{
				curl_setopt($curl, CURLOPT_TIMEOUT, $timeout == 1 ? 1 : $timeout - 1);
			}

			if($username && $password)
			{
				curl_setopt($curl, CURLOPT_USERPWD, $username.':'.$password);
				if (defined('CURLOPT_HTTPAUTH'))
				{
					curl_setopt($curl, CURLOPT_HTTPAUTH, $authtype);
				}
				else if ($authtype != 1)
				{
					error_log('XML-RPC: '.__METHOD__.': warning. Only Basic auth is supported by the current PHP/curl install');
				}
			}

			if($method == 'https')
			{
				// set cert file
				if($cert)
				{
					curl_setopt($curl, CURLOPT_SSLCERT, $cert);
				}
				// set cert password
				if($certpass)
				{
					curl_setopt($curl, CURLOPT_SSLCERTPASSWD, $certpass);
				}
				// whether to verify remote host's cert
				curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, $this->verifypeer);
				// set ca certificates file/dir
				if($cacert)
				{
					curl_setopt($curl, CURLOPT_CAINFO, $cacert);
				}
				if($cacertdir)
				{
					curl_setopt($curl, CURLOPT_CAPATH, $cacertdir);
				}
				// set key file (shall we catch errors in case CURLOPT_SSLKEY undefined ?)
				if($key)
				{
					curl_setopt($curl, CURLOPT_SSLKEY, $key);
				}
				// set key password (shall we catch errors in case CURLOPT_SSLKEY undefined ?)
				if($keypass)
				{
					curl_setopt($curl, CURLOPT_SSLKEYPASSWD, $keypass);
				}
				// whether to verify cert's common name (CN); 0 for no, 1 to verify that it exists, and 2 to verify that it matches the hostname used
				curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, $this->verifyhost);
			}

			// proxy info
			if($proxyhost)
			{
				if($proxyport == 0)
				{
					$proxyport = 8080; // NB: even for HTTPS, local connection is on port 8080
				}
				curl_setopt($curl, CURLOPT_PROXY, $proxyhost.':'.$proxyport);
				//curl_setopt($curl, CURLOPT_PROXYPORT,$proxyport);
				if($proxyusername)
				{
					curl_setopt($curl, CURLOPT_PROXYUSERPWD, $proxyusername.':'.$proxypassword);
					if (defined('CURLOPT_PROXYAUTH'))
					{
						curl_setopt($curl, CURLOPT_PROXYAUTH, $proxyauthtype);
					}
					else if ($proxyauthtype != 1)
					{
						error_log('XML-RPC: '.__METHOD__.': warning. Only Basic auth to proxy is supported by the current PHP/curl install');
					}
				}
			}

			// NB: should we build cookie http headers by hand rather than let CURL do it?
			// the following code does not honour 'expires', 'path' and 'domain' cookie attributes
			// set to client obj the the user...
			if (count($this->cookies))
			{
				$cookieheader = '';
				foreach ($this->cookies as $name => $cookie)
				{
					$cookieheader .= $name . '=' . $cookie['value'] . '; ';
				}
				curl_setopt($curl, CURLOPT_COOKIE, substr($cookieheader, 0, -2));
			}

			foreach ($this->extracurlopts as $opt => $val)
			{
				curl_setopt($curl, $opt, $val);
			}

			$result = curl_exec($curl);

			if ($this->debug > 1)
			{
				print "<PRE>\n---CURL INFO---\n";
				foreach(curl_getinfo($curl) as $name => $val)
					 print $name . ': ' . htmlentities($val). "\n";
				print "---END---\n</PRE>";
			}

			if(!$result) /// @todo we should use a better check here - what if we get back '' or '0'?
			{
				$this->errstr='no response';
				$resp=new xmlrpcresp(0, $GLOBALS['xmlrpcerr']['curl_fail'], $GLOBALS['xmlrpcstr']['curl_fail']. ': '. curl_error($curl));
				curl_close($curl);
				if($keepalive)
				{
					$this->xmlrpc_curl_handle = null;
				}
			}
			else
			{
				if(!$keepalive)
				{
					curl_close($curl);
				}
				$resp =& $msg->parseResponse($result, true, $this->return_type);
			}
			return $resp;
		}

		/**
		* Send an array of request messages and return an array of responses.
		* Unless $this->no_multicall has been set to true, it will try first
		* to use one single xmlrpc call to server method system.multicall, and
		* revert to sending many successive calls in case of failure.
		* This failure is also stored in $this->no_multicall for subsequent calls.
		* Unfortunately, there is no server error code universally used to denote
		* the fact that multicall is unsupported, so there is no way to reliably
		* distinguish between that and a temporary failure.
		* If you are sure that server supports multicall and do not want to
		* fallback to using many single calls, set the fourth parameter to FALSE.
		*
		* NB: trying to shoehorn extra functionality into existing syntax has resulted
		* in pretty much convoluted code...
		*
		* @param array $msgs an array of xmlrpcmsg objects
		* @param integer $timeout connection timeout (in seconds)
		* @param string $method the http protocol variant to be used
		* @param boolean fallback When true, upon receiveing an error during multicall, multiple single calls will be attempted
		* @return array
		* @access public
		*/
		function multicall($msgs, $timeout=0, $method='', $fallback=true)
		{
			if ($method == '')
			{
				$method = $this->method;
			}
			if(!$this->no_multicall)
			{
				$results = $this->_try_multicall($msgs, $timeout, $method);
				if(is_array($results))
				{
					// System.multicall succeeded
					return $results;
				}
				else
				{
					// either system.multicall is unsupported by server,
					// or call failed for some other reason.
					if ($fallback)
					{
						// Don't try it next time...
						$this->no_multicall = true;
					}
					else
					{
						if (is_a($results, 'xmlrpcresp'))
						{
							$result = $results;
						}
						else
						{
							$result = new xmlrpcresp(0, $GLOBALS['xmlrpcerr']['multicall_error'], $GLOBALS['xmlrpcstr']['multicall_error']);
						}
					}
				}
			}
			else
			{
				// override fallback, in case careless user tries to do two
				// opposite things at the same time
				$fallback = true;
			}

			$results = array();
			if ($fallback)
			{
				// system.multicall is (probably) unsupported by server:
				// emulate multicall via multiple requests
				foreach($msgs as $msg)
				{
					$results[] =& $this->send($msg, $timeout, $method);
				}
			}
			else
			{
				// user does NOT want to fallback on many single calls:
				// since we should always return an array of responses,
				// return an array with the same error repeated n times
				foreach($msgs as $msg)
				{
					$results[] = $result;
				}
			}
			return $results;
		}

		/**
		* Attempt to boxcar $msgs via system.multicall.
		* Returns either an array of xmlrpcreponses, an xmlrpc error response
		* or false (when received response does not respect valid multicall syntax)
		* @access private
		*/
		function _try_multicall($msgs, $timeout, $method)
		{
			// Construct multicall message
			$calls = array();
			foreach($msgs as $msg)
			{
				$call['methodName'] = new xmlrpcval($msg->method(),'string');
				$numParams = $msg->getNumParams();
				$params = array();
				for($i = 0; $i < $numParams; $i++)
				{
					$params[$i] = $msg->getParam($i);
				}
				$call['params'] = new xmlrpcval($params, 'array');
				$calls[] = new xmlrpcval($call, 'struct');
			}
			$multicall = new xmlrpcmsg('system.multicall');
			$multicall->addParam(new xmlrpcval($calls, 'array'));

			// Attempt RPC call
			$result =& $this->send($multicall, $timeout, $method);

			if($result->faultCode() != 0)
			{
				// call to system.multicall failed
				return $result;
			}

			// Unpack responses.
			$rets = $result->value();

			if ($this->return_type == 'xml')
			{
					return $rets;
			}
			else if ($this->return_type == 'phpvals')
			{
				///@todo test this code branch...
				$rets = $result->value();
				if(!is_array($rets))
				{
					return false;		// bad return type from system.multicall
				}
				$numRets = count($rets);
				if($numRets != count($msgs))
				{
					return false;		// wrong number of return values.
				}

				$response = array();
				for($i = 0; $i < $numRets; $i++)
				{
					$val = $rets[$i];
					if (!is_array($val)) {
						return false;
					}
					switch(count($val))
					{
						case 1:
							if(!isset($val[0]))
							{
								return false;		// Bad value
							}
							// Normal return value
							$response[$i] = new xmlrpcresp($val[0], 0, '', 'phpvals');
							break;
						case 2:
							///	@todo remove usage of @: it is apparently quite slow
							$code = @$val['faultCode'];
							if(!is_int($code))
							{
								return false;
							}
							$str = @$val['faultString'];
							if(!is_string($str))
							{
								return false;
							}
							$response[$i] = new xmlrpcresp(0, $code, $str);
							break;
						default:
							return false;
					}
				}
				return $response;
			}
			else // return type == 'xmlrpcvals'
			{
				$rets = $result->value();
				if($rets->kindOf() != 'array')
				{
					return false;		// bad return type from system.multicall
				}
				$numRets = $rets->arraysize();
				if($numRets != count($msgs))
				{
					return false;		// wrong number of return values.
				}

				$response = array();
				for($i = 0; $i < $numRets; $i++)
				{
					$val = $rets->arraymem($i);
					switch($val->kindOf())
					{
						case 'array':
							if($val->arraysize() != 1)
							{
								return false;		// Bad value
							}
							// Normal return value
							$response[$i] = new xmlrpcresp($val->arraymem(0));
							break;
						case 'struct':
							$code = $val->structmem('faultCode');
							if($code->kindOf() != 'scalar' || $code->scalartyp() != 'int')
							{
								return false;
							}
							$str = $val->structmem('faultString');
							if($str->kindOf() != 'scalar' || $str->scalartyp() != 'string')
							{
								return false;
							}
							$response[$i] = new xmlrpcresp(0, $code->scalarval(), $str->scalarval());
							break;
						default:
							return false;
					}
				}
				return $response;
			}
		}
	} // end class xmlrpc_client

	class xmlrpcresp
	{
		var $val = 0;
		var $valtyp;
		var $errno = 0;
		var $errstr = '';
		var $payload;
		var $hdrs = array();
		var $_cookies = array();
		var $content_type = 'text/xml';
		var $raw_data = '';

		/**
		* @param mixed $val either an xmlrpcval obj, a php value or the xml serialization of an xmlrpcval (a string)
		* @param integer $fcode set it to anything but 0 to create an error response
		* @param string $fstr the error string, in case of an error response
		* @param string $valtyp either 'xmlrpcvals', 'phpvals' or 'xml'
		*
		* @todo add check that $val / $fcode / $fstr is of correct type???
		* NB: as of now we do not do it, since it might be either an xmlrpcval or a plain
		* php val, or a complete xml chunk, depending on usage of xmlrpc_client::send() inside which creator is called...
		*/
		function xmlrpcresp($val, $fcode = 0, $fstr = '', $valtyp='')
		{
			if($fcode != 0)
			{
				// error response
				$this->errno = $fcode;
				$this->errstr = $fstr;
				//$this->errstr = htmlspecialchars($fstr); // XXX: encoding probably shouldn't be done here; fix later.
			}
			else
			{
				// successful response
				$this->val = $val;
				if ($valtyp == '')
				{
					// user did not declare type of response value: try to guess it
					if (is_object($this->val) && is_a($this->val, 'xmlrpcval'))
					{
						$this->valtyp = 'xmlrpcvals';
					}
					else if (is_string($this->val))
					{
						$this->valtyp = 'xml';

					}
					else
					{
						$this->valtyp = 'phpvals';
					}
				}
				else
				{
					// user declares type of resp value: believe him
					$this->valtyp = $valtyp;
				}
			}
		}

		/**
		* Returns the error code of the response.
		* @return integer the error code of this response (0 for not-error responses)
		* @access public
		*/
		function faultCode()
		{
			return $this->errno;
		}

		/**
		* Returns the error code of the response.
		* @return string the error string of this response ('' for not-error responses)
		* @access public
		*/
		function faultString()
		{
			return $this->errstr;
		}

		/**
		* Returns the value received by the server.
		* @return mixed the xmlrpcval object returned by the server. Might be an xml string or php value if the response has been created by specially configured xmlrpc_client objects
		* @access public
		*/
		function value()
		{
			return $this->val;
		}

		/**
		* Returns an array with the cookies received from the server.
		* Array has the form: $cookiename => array ('value' => $val, $attr1 => $val1, $attr2 = $val2, ...)
		* with attributes being e.g. 'expires', 'path', domain'.
		* NB: cookies sent as 'expired' by the server (i.e. with an expiry date in the past)
		* are still present in the array. It is up to the user-defined code to decide
		* how to use the received cookies, and wheter they have to be sent back with the next
		* request to the server (using xmlrpc_client::setCookie) or not
		* @return array array of cookies received from the server
		* @access public
		*/
		function cookies()
		{
			return $this->_cookies;
		}

		/**
		* Returns xml representation of the response. XML prologue not included
		* @param string $charset_encoding the charset to be used for serialization. if null, US-ASCII is assumed
		* @return string the xml representation of the response
		* @access public
		*/
		function serialize($charset_encoding='')
		{
			if ($charset_encoding != '')
				$this->content_type = 'text/xml; charset=' . $charset_encoding;
			else
				$this->content_type = 'text/xml';
			$result = "<methodResponse>\n";
			if($this->errno)
			{
				// G. Giunta 2005/2/13: let non-ASCII response messages be tolerated by clients
				// by xml-encoding non ascii chars
				$result .= "<fault>\n" .
"<value>\n<struct><member><name>faultCode</name>\n<value><int>" . $this->errno .
"</int></value>\n</member>\n<member>\n<name>faultString</name>\n<value><string>" .
xmlrpc_encode_entitites($this->errstr, $GLOBALS['xmlrpc_internalencoding'], $charset_encoding) . "</string></value>\n</member>\n" .
"</struct>\n</value>\n</fault>";
			}
			else
			{
				if(!is_object($this->val) || !is_a($this->val, 'xmlrpcval'))
				{
					if (is_string($this->val) && $this->valtyp == 'xml')
					{
						$result .= "<params>\n<param>\n" .
							$this->val .
							"</param>\n</params>";
					}
					else
					{
						/// @todo try to build something serializable?
						die('cannot serialize xmlrpcresp objects whose content is native php values');
					}
				}
				else
				{
					$result .= "<params>\n<param>\n" .
						$this->val->serialize($charset_encoding) .
						"</param>\n</params>";
				}
			}
			$result .= "\n</methodResponse>";
			$this->payload = $result;
			return $result;
		}
	}

	class xmlrpcmsg
	{
		var $payload;
		var $methodname;
		var $params=array();
		var $debug=0;
		var $content_type = 'text/xml';

		/**
		* @param string $meth the name of the method to invoke
		* @param array $pars array of parameters to be paased to the method (xmlrpcval objects)
		*/
		function xmlrpcmsg($meth, $pars=0)
		{
			$this->methodname=$meth;
			if(is_array($pars) && count($pars)>0)
			{
				for($i=0; $i<count($pars); $i++)
				{
					$this->addParam($pars[$i]);
				}
			}
		}

		/**
		* @access private
		*/
		function xml_header($charset_encoding='')
		{
			if ($charset_encoding != '')
			{
				return "<?xml version=\"1.0\" encoding=\"$charset_encoding\" ?" . ">\n<methodCall>\n";
			}
			else
			{
				return "<?xml version=\"1.0\"?" . ">\n<methodCall>\n";
			}
		}

		/**
		* @access private
		*/
		function xml_footer()
		{
			return '</methodCall>';
		}

		/**
		* @access private
		*/
		function kindOf()
		{
			return 'msg';
		}

		/**
		* @access private
		*/
		function createPayload($charset_encoding='')
		{
			if ($charset_encoding != '')
				$this->content_type = 'text/xml; charset=' . $charset_encoding;
			else
				$this->content_type = 'text/xml';
			$this->payload=$this->xml_header($charset_encoding);
			$this->payload.='<methodName>' . $this->methodname . "</methodName>\n";
			$this->payload.="<params>\n";
			for($i=0; $i<count($this->params); $i++)
			{
				$p=$this->params[$i];
				$this->payload.="<param>\n" . $p->serialize($charset_encoding) .
				"</param>\n";
			}
			$this->payload.="</params>\n";
			$this->payload.=$this->xml_footer();
		}

		/**
		* Gets/sets the xmlrpc method to be invoked
		* @param string $meth the method to be set (leave empty not to set it)
		* @return string the method that will be invoked
		* @access public
		*/
		function method($meth='')
		{
			if($meth!='')
			{
				$this->methodname=$meth;
			}
			return $this->methodname;
		}

		/**
		* Returns xml representation of the message. XML prologue included
		* @return string the xml representation of the message, xml prologue included
		* @access public
		*/
		function serialize($charset_encoding='')
		{
			$this->createPayload($charset_encoding);
			return $this->payload;
		}

		/**
		* Add a parameter to the list of parameters to be used upon method invocation
		* @param xmlrpcval $par
		* @return boolean false on failure
		* @access public
		*/
		function addParam($par)
		{
			// add check: do not add to self params which are not xmlrpcvals
			if(is_object($par) && is_a($par, 'xmlrpcval'))
			{
				$this->params[]=$par;
				return true;
			}
			else
			{
				return false;
			}
		}

		/**
		* Returns the nth parameter in the message. The index zero-based.
		* @param integer $i the index of the parameter to fetch (zero based)
		* @return xmlrpcval the i-th parameter
		* @access public
		*/
		function getParam($i) { return $this->params[$i]; }

		/**
		* Returns the number of parameters in the messge.
		* @return integer the number of parameters currently set
		* @access public
		*/
		function getNumParams() { return count($this->params); }

		/**
		* Given an open file handle, read all data available and parse it as axmlrpc response.
		* NB: the file handle is not closed by this function.
		* NNB: might have trouble in rare cases to work on network streams, as we
		*      check for a read of 0 bytes instead of feof($fp).
		*      But since checking for feof(null) returns false, we would risk an
		*      infinite loop in that case, because we cannot trust the caller
		*      to give us a valid pointer to an open file...
		* @access public
		* @return xmlrpcresp
		* @todo add 2nd & 3rd param to be passed to ParseResponse() ???
		*/
		function &parseResponseFile($fp)
		{
			$ipd='';
			while($data=fread($fp, 32768))
			{
				$ipd.=$data;
			}
			//fclose($fp);
			$r =& $this->parseResponse($ipd);
			return $r;
		}

		/**
		* Parses HTTP headers and separates them from data.
		* @access private
		*/
		function &parseResponseHeaders(&$data, $headers_processed=false)
		{
				// Support "web-proxy-tunelling" connections for https through proxies
				if(preg_match('/^HTTP\/1\.[0-1] 200 Connection established/', $data))
				{
					// Look for CR/LF or simple LF as line separator,
					// (even though it is not valid http)
					$pos = strpos($data,"\r\n\r\n");
					if($pos || is_int($pos))
					{
						$bd = $pos+4;
					}
					else
					{
						$pos = strpos($data,"\n\n");
						if($pos || is_int($pos))
						{
							$bd = $pos+2;
						}
						else
						{
							// No separation between response headers and body: fault?
							$bd = 0;
						}
					}
					if ($bd)
					{
						// this filters out all http headers from proxy.
						// maybe we could take them into account, too?
						$data = substr($data, $bd);
					}
					else
					{
						error_log('XML-RPC: '.__METHOD__.': HTTPS via proxy error, tunnel connection possibly failed');
						$r=new xmlrpcresp(0, $GLOBALS['xmlrpcerr']['http_error'], $GLOBALS['xmlrpcstr']['http_error']. ' (HTTPS via proxy error, tunnel connection possibly failed)');
						return $r;
					}
				}

				// Strip HTTP 1.1 100 Continue header if present
				while(preg_match('/^HTTP\/1\.1 1[0-9]{2} /', $data))
				{
					$pos = strpos($data, 'HTTP', 12);
					// server sent a Continue header without any (valid) content following...
					// give the client a chance to know it
					if(!$pos && !is_int($pos)) // works fine in php 3, 4 and 5
					{
						break;
					}
					$data = substr($data, $pos);
				}
				if(!preg_match('/^HTTP\/[0-9.]+ 200 /', $data))
				{
					$errstr= substr($data, 0, strpos($data, "\n")-1);
					error_log('XML-RPC: '.__METHOD__.': HTTP error, got response: ' .$errstr);
					$r=new xmlrpcresp(0, $GLOBALS['xmlrpcerr']['http_error'], $GLOBALS['xmlrpcstr']['http_error']. ' (' . $errstr . ')');
					return $r;
				}

				$GLOBALS['_xh']['headers'] = array();
				$GLOBALS['_xh']['cookies'] = array();

				// be tolerant to usage of \n instead of \r\n to separate headers and data
				// (even though it is not valid http)
				$pos = strpos($data,"\r\n\r\n");
				if($pos || is_int($pos))
				{
					$bd = $pos+4;
				}
				else
				{
					$pos = strpos($data,"\n\n");
					if($pos || is_int($pos))
					{
						$bd = $pos+2;
					}
					else
					{
						// No separation between response headers and body: fault?
						// we could take some action here instead of going on...
						$bd = 0;
					}
				}
				// be tolerant to line endings, and extra empty lines
				$ar = preg_split("/\r?\n/", trim(substr($data, 0, $pos)));
				while(list(,$line) = @each($ar))
				{
					// take care of multi-line headers and cookies
					$arr = explode(':',$line,2);
					if(count($arr) > 1)
					{
						$header_name = strtolower(trim($arr[0]));
						/// @todo some other headers (the ones that allow a CSV list of values)
						/// do allow many values to be passed using multiple header lines.
						/// We should add content to $GLOBALS['_xh']['headers'][$header_name]
						/// instead of replacing it for those...
						if ($header_name == 'set-cookie' || $header_name == 'set-cookie2')
						{
							if ($header_name == 'set-cookie2')
							{
								// version 2 cookies:
								// there could be many cookies on one line, comma separated
								$cookies = explode(',', $arr[1]);
							}
							else
							{
								$cookies = array($arr[1]);
							}
							foreach ($cookies as $cookie)
							{
								// glue together all received cookies, using a comma to separate them
								// (same as php does with getallheaders())
								if (isset($GLOBALS['_xh']['headers'][$header_name]))
									$GLOBALS['_xh']['headers'][$header_name] .= ', ' . trim($cookie);
								else
									$GLOBALS['_xh']['headers'][$header_name] = trim($cookie);
								// parse cookie attributes, in case user wants to correctly honour them
								// feature creep: only allow rfc-compliant cookie attributes?
								// @todo support for server sending multiple time cookie with same name, but using different PATHs
								$cookie = explode(';', $cookie);
								foreach ($cookie as $pos => $val)
								{
									$val = explode('=', $val, 2);
									$tag = trim($val[0]);
									$val = trim(@$val[1]);
									/// @todo with version 1 cookies, we should strip leading and trailing " chars
									if ($pos == 0)
									{
										$cookiename = $tag;
										$GLOBALS['_xh']['cookies'][$tag] = array();
										$GLOBALS['_xh']['cookies'][$cookiename]['value'] = urldecode($val);
									}
									else
									{
										if ($tag != 'value')
										{
										  $GLOBALS['_xh']['cookies'][$cookiename][$tag] = $val;
										}
									}
								}
							}
						}
						else
						{
							$GLOBALS['_xh']['headers'][$header_name] = trim($arr[1]);
						}
					}
					elseif(isset($header_name))
					{
						///	@todo version1 cookies might span multiple lines, thus breaking the parsing above
						$GLOBALS['_xh']['headers'][$header_name] .= ' ' . trim($line);
					}
				}

				$data = substr($data, $bd);

				if($this->debug && count($GLOBALS['_xh']['headers']))
				{
					print '<PRE>';
					foreach($GLOBALS['_xh']['headers'] as $header => $value)
					{
						print htmlentities("HEADER: $header: $value\n");
					}
					foreach($GLOBALS['_xh']['cookies'] as $header => $value)
					{
						print htmlentities("COOKIE: $header={$value['value']}\n");
					}
					print "</PRE>\n";
				}

				// if CURL was used for the call, http headers have been processed,
				// and dechunking + reinflating have been carried out
				if(!$headers_processed)
				{
					// Decode chunked encoding sent by http 1.1 servers
					if(isset($GLOBALS['_xh']['headers']['transfer-encoding']) && $GLOBALS['_xh']['headers']['transfer-encoding'] == 'chunked')
					{
						if(!$data = decode_chunked($data))
						{
							error_log('XML-RPC: '.__METHOD__.': errors occurred when trying to rebuild the chunked data received from server');
							$r = new xmlrpcresp(0, $GLOBALS['xmlrpcerr']['dechunk_fail'], $GLOBALS['xmlrpcstr']['dechunk_fail']);
							return $r;
						}
					}

					// Decode gzip-compressed stuff
					// code shamelessly inspired from nusoap library by Dietrich Ayala
					if(isset($GLOBALS['_xh']['headers']['content-encoding']))
					{
						$GLOBALS['_xh']['headers']['content-encoding'] = str_replace('x-', '', $GLOBALS['_xh']['headers']['content-encoding']);
						if($GLOBALS['_xh']['headers']['content-encoding'] == 'deflate' || $GLOBALS['_xh']['headers']['content-encoding'] == 'gzip')
						{
							// if decoding works, use it. else assume data wasn't gzencoded
							if(function_exists('gzinflate'))
							{
								if($GLOBALS['_xh']['headers']['content-encoding'] == 'deflate' && $degzdata = @gzuncompress($data))
								{
									$data = $degzdata;
									if($this->debug)
									print "<PRE>---INFLATED RESPONSE---[".strlen($data)." chars]---\n" . htmlentities($data) . "\n---END---</PRE>";
								}
								elseif($GLOBALS['_xh']['headers']['content-encoding'] == 'gzip' && $degzdata = @gzinflate(substr($data, 10)))
								{
									$data = $degzdata;
									if($this->debug)
									print "<PRE>---INFLATED RESPONSE---[".strlen($data)." chars]---\n" . htmlentities($data) . "\n---END---</PRE>";
								}
								else
								{
									error_log('XML-RPC: '.__METHOD__.': errors occurred when trying to decode the deflated data received from server');
									$r = new xmlrpcresp(0, $GLOBALS['xmlrpcerr']['decompress_fail'], $GLOBALS['xmlrpcstr']['decompress_fail']);
									return $r;
								}
							}
							else
							{
								error_log('XML-RPC: '.__METHOD__.': the server sent deflated data. Your php install must have the Zlib extension compiled in to support this.');
								$r = new xmlrpcresp(0, $GLOBALS['xmlrpcerr']['cannot_decompress'], $GLOBALS['xmlrpcstr']['cannot_decompress']);
								return $r;
							}
						}
					}
				} // end of 'if needed, de-chunk, re-inflate response'

				// real stupid hack to avoid PHP complaining about returning NULL by ref
				$r = null;
				$r =& $r;
				return $r;
		}

		/**
		* Parse the xmlrpc response contained in the string $data and return an xmlrpcresp object.
		* @param string $data the xmlrpc response, eventually including http headers
		* @param bool $headers_processed when true prevents parsing HTTP headers for interpretation of content-encoding and consequent decoding
		* @param string $return_type decides return type, i.e. content of response->value(). Either 'xmlrpcvals', 'xml' or 'phpvals'
		* @return xmlrpcresp
		* @access public
		*/
		function &parseResponse($data='', $headers_processed=false, $return_type='xmlrpcvals')
		{
			if($this->debug)
			{
				//by maHo, replaced htmlspecialchars with htmlentities
				print "<PRE>---GOT---\n" . htmlentities($data) . "\n---END---\n</PRE>";
			}

			if($data == '')
			{
				error_log('XML-RPC: '.__METHOD__.': no response received from server.');
				$r = new xmlrpcresp(0, $GLOBALS['xmlrpcerr']['no_data'], $GLOBALS['xmlrpcstr']['no_data']);
				return $r;
			}

			$GLOBALS['_xh']=array();

			$raw_data = $data;
			// parse the HTTP headers of the response, if present, and separate them from data
			if(substr($data, 0, 4) == 'HTTP')
			{
				$r =& $this->parseResponseHeaders($data, $headers_processed);
				if ($r)
				{
					// failed processing of HTTP response headers
					// save into response obj the full payload received, for debugging
					$r->raw_data = $data;
					return $r;
				}
			}
			else
			{
				$GLOBALS['_xh']['headers'] = array();
				$GLOBALS['_xh']['cookies'] = array();
			}

			if($this->debug)
			{
				$start = strpos($data, '<!-- SERVER DEBUG INFO (BASE64 ENCODED):');
				if ($start)
				{
					$start += strlen('<!-- SERVER DEBUG INFO (BASE64 ENCODED):');
					$end = strpos($data, '-->', $start);
					$comments = substr($data, $start, $end-$start);
					print "<PRE>---SERVER DEBUG INFO (DECODED) ---\n\t".htmlentities(str_replace("\n", "\n\t", base64_decode($comments)))."\n---END---\n</PRE>";
				}
			}

			// be tolerant of extra whitespace in response body
			$data = trim($data);

			/// @todo return an error msg if $data=='' ?

			// be tolerant of junk after methodResponse (e.g. javascript ads automatically inserted by free hosts)
			// idea from Luca Mariano <luca.mariano@email.it> originally in PEARified version of the lib
			$pos = strrpos($data, '</methodResponse>');
			if($pos !== false)
			{
				$data = substr($data, 0, $pos+17);
			}

			// if user wants back raw xml, give it to him
			if ($return_type == 'xml')
			{
				$r = new xmlrpcresp($data, 0, '', 'xml');
				$r->hdrs = $GLOBALS['_xh']['headers'];
				$r->_cookies = $GLOBALS['_xh']['cookies'];
				$r->raw_data = $raw_data;
				return $r;
			}

			// try to 'guestimate' the character encoding of the received response
			$resp_encoding = guess_encoding(@$GLOBALS['_xh']['headers']['content-type'], $data);

			$GLOBALS['_xh']['ac']='';
			//$GLOBALS['_xh']['qt']=''; //unused...
			$GLOBALS['_xh']['stack'] = array();
			$GLOBALS['_xh']['valuestack'] = array();
			$GLOBALS['_xh']['isf']=0; // 0 = OK, 1 for xmlrpc fault responses, 2 = invalid xmlrpc
			$GLOBALS['_xh']['isf_reason']='';
			$GLOBALS['_xh']['rt']=''; // 'methodcall or 'methodresponse'

			// if response charset encoding is not known / supported, try to use
			// the default encoding and parse the xml anyway, but log a warning...
			if (!in_array($resp_encoding, array('UTF-8', 'ISO-8859-1', 'US-ASCII')))
			// the following code might be better for mb_string enabled installs, but
			// makes the lib about 200% slower...
			//if (!is_valid_charset($resp_encoding, array('UTF-8', 'ISO-8859-1', 'US-ASCII')))
			{
				error_log('XML-RPC: '.__METHOD__.': invalid charset encoding of received response: '.$resp_encoding);
				$resp_encoding = $GLOBALS['xmlrpc_defencoding'];
			}
			$parser = xml_parser_create($resp_encoding);
			xml_parser_set_option($parser, XML_OPTION_CASE_FOLDING, true);
			// G. Giunta 2005/02/13: PHP internally uses ISO-8859-1, so we have to tell
			// the xml parser to give us back data in the expected charset.
			// What if internal encoding is not in one of the 3 allowed?
			// we use the broadest one, ie. utf8
			// This allows to send data which is native in various charset,
			// by extending xmlrpc_encode_entitites() and setting xmlrpc_internalencoding
			if (!in_array($GLOBALS['xmlrpc_internalencoding'], array('UTF-8', 'ISO-8859-1', 'US-ASCII')))
			{
				xml_parser_set_option($parser, XML_OPTION_TARGET_ENCODING, 'UTF-8');
			}
			else
			{
				xml_parser_set_option($parser, XML_OPTION_TARGET_ENCODING, $GLOBALS['xmlrpc_internalencoding']);
			}

			if ($return_type == 'phpvals')
			{
				xml_set_element_handler($parser, 'xmlrpc_se', 'xmlrpc_ee_fast');
			}
			else
			{
				xml_set_element_handler($parser, 'xmlrpc_se', 'xmlrpc_ee');
			}

			xml_set_character_data_handler($parser, 'xmlrpc_cd');
			xml_set_default_handler($parser, 'xmlrpc_dh');

			// first error check: xml not well formed
			if(!xml_parse($parser, $data, count($data)))
			{
				// thanks to Peter Kocks <peter.kocks@baygate.com>
				if((xml_get_current_line_number($parser)) == 1)
				{
					$errstr = 'XML error at line 1, check URL';
				}
				else
				{
					$errstr = sprintf('XML error: %s at line %d, column %d',
						xml_error_string(xml_get_error_code($parser)),
						xml_get_current_line_number($parser), xml_get_current_column_number($parser));
				}
				error_log($errstr);
				$r=new xmlrpcresp(0, $GLOBALS['xmlrpcerr']['invalid_return'], $GLOBALS['xmlrpcstr']['invalid_return'].' ('.$errstr.')');
				xml_parser_free($parser);
				if($this->debug)
				{
					print $errstr;
				}
				$r->hdrs = $GLOBALS['_xh']['headers'];
				$r->_cookies = $GLOBALS['_xh']['cookies'];
				$r->raw_data = $raw_data;
				return $r;
			}
			xml_parser_free($parser);
			// second error check: xml well formed but not xml-rpc compliant
			if ($GLOBALS['_xh']['isf'] > 1)
			{
				if ($this->debug)
				{
					/// @todo echo something for user?
				}

				$r = new xmlrpcresp(0, $GLOBALS['xmlrpcerr']['invalid_return'],
				$GLOBALS['xmlrpcstr']['invalid_return'] . ' ' . $GLOBALS['_xh']['isf_reason']);
			}
			// third error check: parsing of the response has somehow gone boink.
			// NB: shall we omit this check, since we trust the parsing code?
			elseif ($return_type == 'xmlrpcvals' && !is_object($GLOBALS['_xh']['value']))
			{
				// something odd has happened
				// and it's time to generate a client side error
				// indicating something odd went on
				$r=new xmlrpcresp(0, $GLOBALS['xmlrpcerr']['invalid_return'],
					$GLOBALS['xmlrpcstr']['invalid_return']);
			}
			else
			{
				if ($this->debug)
				{
					print "<PRE>---PARSED---\n";
					// somehow htmlentities chokes on var_export, and some full html string...
					//print htmlentitites(var_export($GLOBALS['_xh']['value'], true));
					print htmlspecialchars(var_export($GLOBALS['_xh']['value'], true));
					print "\n---END---</PRE>";
				}

				// note that using =& will raise an error if $GLOBALS['_xh']['st'] does not generate an object.
				$v =& $GLOBALS['_xh']['value'];

				if($GLOBALS['_xh']['isf'])
				{
					/// @todo we should test here if server sent an int and a string,
					/// and/or coerce them into such...
					if ($return_type == 'xmlrpcvals')
					{
						$errno_v = $v->structmem('faultCode');
						$errstr_v = $v->structmem('faultString');
						$errno = $errno_v->scalarval();
						$errstr = $errstr_v->scalarval();
					}
					else
					{
						$errno = $v['faultCode'];
						$errstr = $v['faultString'];
					}

					if($errno == 0)
					{
						// FAULT returned, errno needs to reflect that
						$errno = -1;
					}

					$r = new xmlrpcresp(0, $errno, $errstr);
				}
				else
				{
					$r=new xmlrpcresp($v, 0, '', $return_type);
				}
			}

			$r->hdrs = $GLOBALS['_xh']['headers'];
			$r->_cookies = $GLOBALS['_xh']['cookies'];
			$r->raw_data = $raw_data;
			return $r;
		}
	}

	class xmlrpcval
	{
		var $me=array();
		var $mytype=0;
		var $_php_class=null;

		/**
		* @param mixed $val
		* @param string $type any valid xmlrpc type name (lowercase). If null, 'string' is assumed
		*/
		function xmlrpcval($val=-1, $type='')
		{
			/// @todo: optimization creep - do not call addXX, do it all inline.
			/// downside: booleans will not be coerced anymore
			if($val!==-1 || $type!='')
			{
				// optimization creep: inlined all work done by constructor
				switch($type)
				{
					case '':
						$this->mytype=1;
						$this->me['string']=$val;
						break;
					case 'i4':
					case 'int':
					case 'double':
					case 'string':
					case 'boolean':
					case 'dateTime.iso8601':
					case 'base64':
					case 'null':
						$this->mytype=1;
						$this->me[$type]=$val;
						break;
					case 'array':
						$this->mytype=2;
						$this->me['array']=$val;
						break;
					case 'struct':
						$this->mytype=3;
						$this->me['struct']=$val;
						break;
					default:
						error_log("XML-RPC: ".__METHOD__.": not a known type ($type)");
				}
				/*if($type=='')
				{
					$type='string';
				}
				if($GLOBALS['xmlrpcTypes'][$type]==1)
				{
					$this->addScalar($val,$type);
				}
				elseif($GLOBALS['xmlrpcTypes'][$type]==2)
				{
					$this->addArray($val);
				}
				elseif($GLOBALS['xmlrpcTypes'][$type]==3)
				{
					$this->addStruct($val);
				}*/
			}
		}

		/**
		* Add a single php value to an (unitialized) xmlrpcval
		* @param mixed $val
		* @param string $type
		* @return int 1 or 0 on failure
		*/
		function addScalar($val, $type='string')
		{
			$typeof=@$GLOBALS['xmlrpcTypes'][$type];
			if($typeof!=1)
			{
				error_log("XML-RPC: ".__METHOD__.": not a scalar type ($type)");
				return 0;
			}

			// coerce booleans into correct values
			// NB: we should either do it for datetimes, integers and doubles, too,
			// or just plain remove this check, implemented on booleans only...
			if($type==$GLOBALS['xmlrpcBoolean'])
			{
				if(strcasecmp($val,'true')==0 || $val==1 || ($val==true && strcasecmp($val,'false')))
				{
					$val=true;
				}
				else
				{
					$val=false;
				}
			}

			switch($this->mytype)
			{
				case 1:
					error_log('XML-RPC: '.__METHOD__.': scalar xmlrpcval can have only one value');
					return 0;
				case 3:
					error_log('XML-RPC: '.__METHOD__.': cannot add anonymous scalar to struct xmlrpcval');
					return 0;
				case 2:
					// we're adding a scalar value to an array here
					//$ar=$this->me['array'];
					//$ar[]=new xmlrpcval($val, $type);
					//$this->me['array']=$ar;
					// Faster (?) avoid all the costly array-copy-by-val done here...
					$this->me['array'][]=new xmlrpcval($val, $type);
					return 1;
				default:
					// a scalar, so set the value and remember we're scalar
					$this->me[$type]=$val;
					$this->mytype=$typeof;
					return 1;
			}
		}

		/**
		* Add an array of xmlrpcval objects to an xmlrpcval
		* @param array $vals
		* @return int 1 or 0 on failure
		* @access public
		*
		* @todo add some checking for $vals to be an array of xmlrpcvals?
		*/
		function addArray($vals)
		{
			if($this->mytype==0)
			{
				$this->mytype=$GLOBALS['xmlrpcTypes']['array'];
				$this->me['array']=$vals;
				return 1;
			}
			elseif($this->mytype==2)
			{
				// we're adding to an array here
				$this->me['array'] = array_merge($this->me['array'], $vals);
				return 1;
			}
			else
			{
				error_log('XML-RPC: '.__METHOD__.': already initialized as a [' . $this->kindOf() . ']');
				return 0;
			}
		}

		/**
		* Add an array of named xmlrpcval objects to an xmlrpcval
		* @param array $vals
		* @return int 1 or 0 on failure
		* @access public
		*
		* @todo add some checking for $vals to be an array?
		*/
		function addStruct($vals)
		{
			if($this->mytype==0)
			{
				$this->mytype=$GLOBALS['xmlrpcTypes']['struct'];
				$this->me['struct']=$vals;
				return 1;
			}
			elseif($this->mytype==3)
			{
				// we're adding to a struct here
				$this->me['struct'] = array_merge($this->me['struct'], $vals);
				return 1;
			}
			else
			{
				error_log('XML-RPC: '.__METHOD__.': already initialized as a [' . $this->kindOf() . ']');
				return 0;
			}
		}

		// poor man's version of print_r ???
		// DEPRECATED!
		function dump($ar)
		{
			foreach($ar as $key => $val)
			{
				echo "$key => $val<br />";
				if($key == 'array')
				{
					while(list($key2, $val2) = each($val))
					{
						echo "-- $key2 => $val2<br />";
					}
				}
			}
		}

		/**
		* Returns a string containing "struct", "array" or "scalar" describing the base type of the value
		* @return string
		* @access public
		*/
		function kindOf()
		{
			switch($this->mytype)
			{
				case 3:
					return 'struct';
					break;
				case 2:
					return 'array';
					break;
				case 1:
					return 'scalar';
					break;
				default:
					return 'undef';
			}
		}

		/**
		* @access private
		*/
		function serializedata($typ, $val, $charset_encoding='')
		{
			$rs='';
			switch(@$GLOBALS['xmlrpcTypes'][$typ])
			{
				case 1:
					switch($typ)
					{
						case $GLOBALS['xmlrpcBase64']:
							$rs.="<${typ}>" . base64_encode($val) . "</${typ}>";
							break;
						case $GLOBALS['xmlrpcBoolean']:
							$rs.="<${typ}>" . ($val ? '1' : '0') . "</${typ}>";
							break;
						case $GLOBALS['xmlrpcString']:
							// G. Giunta 2005/2/13: do NOT use htmlentities, since
							// it will produce named html entities, which are invalid xml
							$rs.="<${typ}>" . xmlrpc_encode_entitites($val, $GLOBALS['xmlrpc_internalencoding'], $charset_encoding). "</${typ}>";
							break;
						case $GLOBALS['xmlrpcInt']:
						case $GLOBALS['xmlrpcI4']:
							$rs.="<${typ}>".(int)$val."</${typ}>";
							break;
						case $GLOBALS['xmlrpcDouble']:
							// avoid using standard conversion of float to string because it is locale-dependent,
							// and also because the xmlrpc spec forbids exponential notation.
							// sprintf('%F') could be most likely ok but it fails eg. on 2e-14.
							// The code below tries its best at keeping max precision while avoiding exp notation,
							// but there is of course no limit in the number of decimal places to be used...
							$rs.="<${typ}>".preg_replace('/\\.?0+$/','',number_format((double)$val, 128, '.', ''))."</${typ}>";
							break;
						case $GLOBALS['xmlrpcDateTime']:
							if (is_string($val))
							{
								$rs.="<${typ}>${val}</${typ}>";
							}
							else if(is_a($val, 'DateTime'))
							{
								$rs.="<${typ}>".$val->format('Ymd\TH:i:s')."</${typ}>";
							}
							else if(is_int($val))
							{
								$rs.="<${typ}>".strftime("%Y%m%dT%H:%M:%S", $val)."</${typ}>";
							}
							else
							{
								// not really a good idea here: but what shall we output anyway? left for backward compat...
								$rs.="<${typ}>${val}</${typ}>";
							}
							break;
						case $GLOBALS['xmlrpcNull']:
							if ($GLOBALS['xmlrpc_null_apache_encoding'])
							{
								$rs.="<ex:nil/>";
							}
							else
							{
								$rs.="<nil/>";
							}
							break;
						default:
							// no standard type value should arrive here, but provide a possibility
							// for xmlrpcvals of unknown type...
							$rs.="<${typ}>${val}</${typ}>";
					}
					break;
				case 3:
					// struct
					if ($this->_php_class)
					{
						$rs.='<struct php_class="' . $this->_php_class . "\">\n";
					}
					else
					{
						$rs.="<struct>\n";
					}
					foreach($val as $key2 => $val2)
					{
						$rs.='<member><name>'.xmlrpc_encode_entitites($key2, $GLOBALS['xmlrpc_internalencoding'], $charset_encoding)."</name>\n";
						//$rs.=$this->serializeval($val2);
						$rs.=$val2->serialize($charset_encoding);
						$rs.="</member>\n";
					}
					$rs.='</struct>';
					break;
				case 2:
					// array
					$rs.="<array>\n<data>\n";
					for($i=0; $i<count($val); $i++)
					{
						//$rs.=$this->serializeval($val[$i]);
						$rs.=$val[$i]->serialize($charset_encoding);
					}
					$rs.="</data>\n</array>";
					break;
				default:
					break;
			}
			return $rs;
		}

		/**
		* Returns xml representation of the value. XML prologue not included
		* @param string $charset_encoding the charset to be used for serialization. if null, US-ASCII is assumed
		* @return string
		* @access public
		*/
		function serialize($charset_encoding='')
		{
			// add check? slower, but helps to avoid recursion in serializing broken xmlrpcvals...
			//if (is_object($o) && (get_class($o) == 'xmlrpcval' || is_subclass_of($o, 'xmlrpcval')))
			//{
				reset($this->me);
				list($typ, $val) = each($this->me);
				return '<value>' . $this->serializedata($typ, $val, $charset_encoding) . "</value>\n";
			//}
		}

		// DEPRECATED
		function serializeval($o)
		{
			// add check? slower, but helps to avoid recursion in serializing broken xmlrpcvals...
			//if (is_object($o) && (get_class($o) == 'xmlrpcval' || is_subclass_of($o, 'xmlrpcval')))
			//{
				$ar=$o->me;
				reset($ar);
				list($typ, $val) = each($ar);
				return '<value>' . $this->serializedata($typ, $val) . "</value>\n";
			//}
		}

		/**
		* Checks wheter a struct member with a given name is present.
		* Works only on xmlrpcvals of type struct.
		* @param string $m the name of the struct member to be looked up
		* @return boolean
		* @access public
		*/
		function structmemexists($m)
		{
			return array_key_exists($m, $this->me['struct']);
		}

		/**
		* Returns the value of a given struct member (an xmlrpcval object in itself).
		* Will raise a php warning if struct member of given name does not exist
		* @param string $m the name of the struct member to be looked up
		* @return xmlrpcval
		* @access public
		*/
		function structmem($m)
		{
			return $this->me['struct'][$m];
		}

		/**
		* Reset internal pointer for xmlrpcvals of type struct.
		* @access public
		*/
		function structreset()
		{
			reset($this->me['struct']);
		}

		/**
		* Return next member element for xmlrpcvals of type struct.
		* @return xmlrpcval
		* @access public
		*/
		function structeach()
		{
			return each($this->me['struct']);
		}

		// DEPRECATED! this code looks like it is very fragile and has not been fixed
		// for a long long time. Shall we remove it for 2.0?
		function getval()
		{
			// UNSTABLE
			reset($this->me);
			list($a,$b)=each($this->me);
			// contributed by I Sofer, 2001-03-24
			// add support for nested arrays to scalarval
			// i've created a new method here, so as to
			// preserve back compatibility

			if(is_array($b))
			{
				@reset($b);
				while(list($id,$cont) = @each($b))
				{
					$b[$id] = $cont->scalarval();
				}
			}

			// add support for structures directly encoding php objects
			if(is_object($b))
			{
				$t = get_object_vars($b);
				@reset($t);
				while(list($id,$cont) = @each($t))
				{
					$t[$id] = $cont->scalarval();
				}
				@reset($t);
				while(list($id,$cont) = @each($t))
				{
					@$b->$id = $cont;
				}
			}
			// end contrib
			return $b;
		}

		/**
		* Returns the value of a scalar xmlrpcval
		* @return mixed
		* @access public
		*/
		function scalarval()
		{
			reset($this->me);
			list(,$b)=each($this->me);
			return $b;
		}

		/**
		* Returns the type of the xmlrpcval.
		* For integers, 'int' is always returned in place of 'i4'
		* @return string
		* @access public
		*/
		function scalartyp()
		{
			reset($this->me);
			list($a,)=each($this->me);
			if($a==$GLOBALS['xmlrpcI4'])
			{
				$a=$GLOBALS['xmlrpcInt'];
			}
			return $a;
		}

		/**
		* Returns the m-th member of an xmlrpcval of struct type
		* @param integer $m the index of the value to be retrieved (zero based)
		* @return xmlrpcval
		* @access public
		*/
		function arraymem($m)
		{
			return $this->me['array'][$m];
		}

		/**
		* Returns the number of members in an xmlrpcval of array type
		* @return integer
		* @access public
		*/
		function arraysize()
		{
			return count($this->me['array']);
		}

		/**
		* Returns the number of members in an xmlrpcval of struct type
		* @return integer
		* @access public
		*/
		function structsize()
		{
			return count($this->me['struct']);
		}
	}


	// date helpers

	/**
	* Given a timestamp, return the corresponding ISO8601 encoded string.
	*
	* Really, timezones ought to be supported
	* but the XML-RPC spec says:
	*
	* "Don't assume a timezone. It should be specified by the server in its
	* documentation what assumptions it makes about timezones."
	*
	* These routines always assume localtime unless
	* $utc is set to 1, in which case UTC is assumed
	* and an adjustment for locale is made when encoding
	*
	* @param int $timet (timestamp)
	* @param int $utc (0 or 1)
	* @return string
	*/
	function iso8601_encode($timet, $utc=0)
	{
		if(!$utc)
		{
			$t=strftime("%Y%m%dT%H:%M:%S", $timet);
		}
		else
		{
			if(function_exists('gmstrftime'))
			{
				// gmstrftime doesn't exist in some versions
				// of PHP
				$t=gmstrftime("%Y%m%dT%H:%M:%S", $timet);
			}
			else
			{
				$t=strftime("%Y%m%dT%H:%M:%S", $timet-date('Z'));
			}
		}
		return $t;
	}

	/**
	* Given an ISO8601 date string, return a timet in the localtime, or UTC
	* @param string $idate
	* @param int $utc either 0 or 1
	* @return int (datetime)
	*/
	function iso8601_decode($idate, $utc=0)
	{
		$t=0;
		if(preg_match('/([0-9]{4})([0-9]{2})([0-9]{2})T([0-9]{2}):([0-9]{2}):([0-9]{2})/', $idate, $regs))
		{
			if($utc)
			{
				$t=gmmktime($regs[4], $regs[5], $regs[6], $regs[2], $regs[3], $regs[1]);
			}
			else
			{
				$t=mktime($regs[4], $regs[5], $regs[6], $regs[2], $regs[3], $regs[1]);
			}
		}
		return $t;
	}

	/**
	* Takes an xmlrpc value in PHP xmlrpcval object format and translates it into native PHP types.
	*
	* Works with xmlrpc message objects as input, too.
	*
	* Given proper options parameter, can rebuild generic php object instances
	* (provided those have been encoded to xmlrpc format using a corresponding
	* option in php_xmlrpc_encode())
	* PLEASE NOTE that rebuilding php objects involves calling their constructor function.
	* This means that the remote communication end can decide which php code will
	* get executed on your server, leaving the door possibly open to 'php-injection'
	* style of attacks (provided you have some classes defined on your server that
	* might wreak havoc if instances are built outside an appropriate context).
	* Make sure you trust the remote server/client before eanbling this!
	*
	* @author Dan Libby (dan@libby.com)
	*
	* @param xmlrpcval $xmlrpc_val
	* @param array $options if 'decode_php_objs' is set in the options array, xmlrpc structs can be decoded into php objects; if 'dates_as_objects' is set xmlrpc datetimes are decoded as php DateTime objects (standard is
	* @return mixed
	*/
	function php_xmlrpc_decode($xmlrpc_val, $options=array())
	{
		switch($xmlrpc_val->kindOf())
		{
			case 'scalar':
				if (in_array('extension_api', $options))
				{
					reset($xmlrpc_val->me);
					list($typ,$val) = each($xmlrpc_val->me);
					switch ($typ)
					{
						case 'dateTime.iso8601':
							$xmlrpc_val->scalar = $val;
							$xmlrpc_val->xmlrpc_type = 'datetime';
							$xmlrpc_val->timestamp = iso8601_decode($val);
							return $xmlrpc_val;
						case 'base64':
							$xmlrpc_val->scalar = $val;
							$xmlrpc_val->type = $typ;
							return $xmlrpc_val;
						default:
							return $xmlrpc_val->scalarval();
					}
				}
				if (in_array('dates_as_objects', $options) && $xmlrpc_val->scalartyp() == 'dateTime.iso8601')
				{
					// we return a Datetime object instead of a string
					// since now the constructor of xmlrpcval accepts safely strings, ints and datetimes,
					// we cater to all 3 cases here
					$out = $xmlrpc_val->scalarval();
					if (is_string($out))
					{
						$out = strtotime($out);
					}
					if (is_int($out))
					{
						$result = new Datetime();
						$result->setTimestamp($out);
						return $result;
					}
					elseif (is_a($out, 'Datetime'))
					{
						return $out;
					}
				}
				return $xmlrpc_val->scalarval();
			case 'array':
				$size = $xmlrpc_val->arraysize();
				$arr = array();
				for($i = 0; $i < $size; $i++)
				{
					$arr[] = php_xmlrpc_decode($xmlrpc_val->arraymem($i), $options);
				}
				return $arr;
			case 'struct':
				$xmlrpc_val->structreset();
				// If user said so, try to rebuild php objects for specific struct vals.
				/// @todo should we raise a warning for class not found?
				// shall we check for proper subclass of xmlrpcval instead of
				// presence of _php_class to detect what we can do?
				if (in_array('decode_php_objs', $options) && $xmlrpc_val->_php_class != ''
					&& class_exists($xmlrpc_val->_php_class))
				{
					$obj = @new $xmlrpc_val->_php_class;
					while(list($key,$value)=$xmlrpc_val->structeach())
					{
						$obj->$key = php_xmlrpc_decode($value, $options);
					}
					return $obj;
				}
				else
				{
					$arr = array();
					while(list($key,$value)=$xmlrpc_val->structeach())
					{
						$arr[$key] = php_xmlrpc_decode($value, $options);
					}
					return $arr;
				}
			case 'msg':
				$paramcount = $xmlrpc_val->getNumParams();
				$arr = array();
				for($i = 0; $i < $paramcount; $i++)
				{
					$arr[] = php_xmlrpc_decode($xmlrpc_val->getParam($i));
				}
				return $arr;
			}
	}

	// This constant left here only for historical reasons...
	// it was used to decide if we have to define xmlrpc_encode on our own, but
	// we do not do it anymore
	if(function_exists('xmlrpc_decode'))
	{
		define('XMLRPC_EPI_ENABLED','1');
	}
	else
	{
		define('XMLRPC_EPI_ENABLED','0');
	}

	/**
	* Takes native php types and encodes them into xmlrpc PHP object format.
	* It will not re-encode xmlrpcval objects.
	*
	* Feature creep -- could support more types via optional type argument
	* (string => datetime support has been added, ??? => base64 not yet)
	*
	* If given a proper options parameter, php object instances will be encoded
	* into 'special' xmlrpc values, that can later be decoded into php objects
	* by calling php_xmlrpc_decode() with a corresponding option
	*
	* @author Dan Libby (dan@libby.com)
	*
	* @param mixed $php_val the value to be converted into an xmlrpcval object
	* @param array $options	can include 'encode_php_objs', 'auto_dates', 'null_extension' or 'extension_api'
	* @return xmlrpcval
	*/
	function php_xmlrpc_encode($php_val, $options=array())
	{
		$type = gettype($php_val);
		switch($type)
		{
			case 'string':
				if (in_array('auto_dates', $options) && preg_match('/^[0-9]{8}T[0-9]{2}:[0-9]{2}:[0-9]{2}$/', $php_val))
					$xmlrpc_val = new xmlrpcval($php_val, $GLOBALS['xmlrpcDateTime']);
				else
					$xmlrpc_val = new xmlrpcval($php_val, $GLOBALS['xmlrpcString']);
				break;
			case 'integer':
				$xmlrpc_val = new xmlrpcval($php_val, $GLOBALS['xmlrpcInt']);
				break;
			case 'double':
				$xmlrpc_val = new xmlrpcval($php_val, $GLOBALS['xmlrpcDouble']);
				break;
				// <G_Giunta_2001-02-29>
				// Add support for encoding/decoding of booleans, since they are supported in PHP
			case 'boolean':
				$xmlrpc_val = new xmlrpcval($php_val, $GLOBALS['xmlrpcBoolean']);
				break;
				// </G_Giunta_2001-02-29>
			case 'array':
				// PHP arrays can be encoded to either xmlrpc structs or arrays,
				// depending on wheter they are hashes or plain 0..n integer indexed
				// A shorter one-liner would be
				// $tmp = array_diff(array_keys($php_val), range(0, count($php_val)-1));
				// but execution time skyrockets!
				$j = 0;
				$arr = array();
				$ko = false;
				foreach($php_val as $key => $val)
				{
					$arr[$key] = php_xmlrpc_encode($val, $options);
					if(!$ko && $key !== $j)
					{
						$ko = true;
					}
					$j++;
				}
				if($ko)
				{
					$xmlrpc_val = new xmlrpcval($arr, $GLOBALS['xmlrpcStruct']);
				}
				else
				{
					$xmlrpc_val = new xmlrpcval($arr, $GLOBALS['xmlrpcArray']);
				}
				break;
			case 'object':
				if(is_a($php_val, 'xmlrpcval'))
				{
					$xmlrpc_val = $php_val;
				}
				else if(is_a($php_val, 'DateTime'))
				{
					$xmlrpc_val = new xmlrpcval($php_val->format('Ymd\TH:i:s'), $GLOBALS['xmlrpcStruct']);
				}
				else
				{
					$arr = array();
					reset($php_val);
					while(list($k,$v) = each($php_val))
					{
						$arr[$k] = php_xmlrpc_encode($v, $options);
					}
					$xmlrpc_val = new xmlrpcval($arr, $GLOBALS['xmlrpcStruct']);
					if (in_array('encode_php_objs', $options))
					{
						// let's save original class name into xmlrpcval:
						// might be useful later on...
						$xmlrpc_val->_php_class = get_class($php_val);
					}
				}
				break;
			case 'NULL':
				if (in_array('extension_api', $options))
				{
					$xmlrpc_val = new xmlrpcval('', $GLOBALS['xmlrpcString']);
				}
				else if (in_array('null_extension', $options))
				{
					$xmlrpc_val = new xmlrpcval('', $GLOBALS['xmlrpcNull']);
				}
				else
				{
					$xmlrpc_val = new xmlrpcval();
				}
				break;
			case 'resource':
				if (in_array('extension_api', $options))
				{
					$xmlrpc_val = new xmlrpcval((int)$php_val, $GLOBALS['xmlrpcInt']);
				}
				else
				{
					$xmlrpc_val = new xmlrpcval();
				}
			// catch "user function", "unknown type"
			default:
				// giancarlo pinerolo <ping@alt.it>
				// it has to return
				// an empty object in case, not a boolean.
				$xmlrpc_val = new xmlrpcval();
				break;
			}
			return $xmlrpc_val;
	}

	/**
	* Convert the xml representation of a method response, method request or single
	* xmlrpc value into the appropriate object (a.k.a. deserialize)
	* @param string $xml_val
	* @param array $options
	* @return mixed false on error, or an instance of either xmlrpcval, xmlrpcmsg or xmlrpcresp
	*/
	function php_xmlrpc_decode_xml($xml_val, $options=array())
	{
		$GLOBALS['_xh'] = array();
		$GLOBALS['_xh']['ac'] = '';
		$GLOBALS['_xh']['stack'] = array();
		$GLOBALS['_xh']['valuestack'] = array();
		$GLOBALS['_xh']['params'] = array();
		$GLOBALS['_xh']['pt'] = array();
		$GLOBALS['_xh']['isf'] = 0;
		$GLOBALS['_xh']['isf_reason'] = '';
		$GLOBALS['_xh']['method'] = false;
		$GLOBALS['_xh']['rt'] = '';
		/// @todo 'guestimate' encoding
		$parser = xml_parser_create();
		xml_parser_set_option($parser, XML_OPTION_CASE_FOLDING, true);
		// What if internal encoding is not in one of the 3 allowed?
		// we use the broadest one, ie. utf8!
		if (!in_array($GLOBALS['xmlrpc_internalencoding'], array('UTF-8', 'ISO-8859-1', 'US-ASCII')))
		{
			xml_parser_set_option($parser, XML_OPTION_TARGET_ENCODING, 'UTF-8');
		}
		else
		{
			xml_parser_set_option($parser, XML_OPTION_TARGET_ENCODING, $GLOBALS['xmlrpc_internalencoding']);
		}
		xml_set_element_handler($parser, 'xmlrpc_se_any', 'xmlrpc_ee');
		xml_set_character_data_handler($parser, 'xmlrpc_cd');
		xml_set_default_handler($parser, 'xmlrpc_dh');
		if(!xml_parse($parser, $xml_val, 1))
		{
			$errstr = sprintf('XML error: %s at line %d, column %d',
						xml_error_string(xml_get_error_code($parser)),
						xml_get_current_line_number($parser), xml_get_current_column_number($parser));
			error_log($errstr);
			xml_parser_free($parser);
			return false;
		}
		xml_parser_free($parser);
		if ($GLOBALS['_xh']['isf'] > 1) // test that $GLOBALS['_xh']['value'] is an obj, too???
		{
			error_log($GLOBALS['_xh']['isf_reason']);
			return false;
		}
		switch ($GLOBALS['_xh']['rt'])
		{
			case 'methodresponse':
				$v =& $GLOBALS['_xh']['value'];
				if ($GLOBALS['_xh']['isf'] == 1)
				{
					$vc = $v->structmem('faultCode');
					$vs = $v->structmem('faultString');
					$r = new xmlrpcresp(0, $vc->scalarval(), $vs->scalarval());
				}
				else
				{
					$r = new xmlrpcresp($v);
				}
				return $r;
			case 'methodcall':
				$m = new xmlrpcmsg($GLOBALS['_xh']['method']);
				for($i=0; $i < count($GLOBALS['_xh']['params']); $i++)
				{
					$m->addParam($GLOBALS['_xh']['params'][$i]);
				}
				return $m;
			case 'value':
				return $GLOBALS['_xh']['value'];
			default:
				return false;
		}
	}

	/**
	* decode a string that is encoded w/ "chunked" transfer encoding
	* as defined in rfc2068 par. 19.4.6
	* code shamelessly stolen from nusoap library by Dietrich Ayala
	*
	* @param string $buffer the string to be decoded
	* @return string
	*/
	function decode_chunked($buffer)
	{
		// length := 0
		$length = 0;
		$new = '';

		// read chunk-size, chunk-extension (if any) and crlf
		// get the position of the linebreak
		$chunkend = strpos($buffer,"\r\n") + 2;
		$temp = substr($buffer,0,$chunkend);
		$chunk_size = hexdec( trim($temp) );
		$chunkstart = $chunkend;
		while($chunk_size > 0)
		{
			$chunkend = strpos($buffer, "\r\n", $chunkstart + $chunk_size);

			// just in case we got a broken connection
			if($chunkend == false)
			{
				$chunk = substr($buffer,$chunkstart);
				// append chunk-data to entity-body
				$new .= $chunk;
				$length += strlen($chunk);
				break;
			}

			// read chunk-data and crlf
			$chunk = substr($buffer,$chunkstart,$chunkend-$chunkstart);
			// append chunk-data to entity-body
			$new .= $chunk;
			// length := length + chunk-size
			$length += strlen($chunk);
			// read chunk-size and crlf
			$chunkstart = $chunkend + 2;

			$chunkend = strpos($buffer,"\r\n",$chunkstart)+2;
			if($chunkend == false)
			{
				break; //just in case we got a broken connection
			}
			$temp = substr($buffer,$chunkstart,$chunkend-$chunkstart);
			$chunk_size = hexdec( trim($temp) );
			$chunkstart = $chunkend;
		}
		return $new;
	}

	/**
	* xml charset encoding guessing helper function.
	* Tries to determine the charset encoding of an XML chunk received over HTTP.
	* NB: according to the spec (RFC 3023), if text/xml content-type is received over HTTP without a content-type,
	* we SHOULD assume it is strictly US-ASCII. But we try to be more tolerant of unconforming (legacy?) clients/servers,
	* which will be most probably using UTF-8 anyway...
	*
	* @param string $httpheaders the http Content-type header
	* @param string $xmlchunk xml content buffer
	* @param string $encoding_prefs comma separated list of character encodings to be used as default (when mb extension is enabled)
	*
	* @todo explore usage of mb_http_input(): does it detect http headers + post data? if so, use it instead of hand-detection!!!
	*/
	function guess_encoding($httpheader='', $xmlchunk='', $encoding_prefs=null)
	{
		// discussion: see http://www.yale.edu/pclt/encoding/
		// 1 - test if encoding is specified in HTTP HEADERS

		//Details:
		// LWS:           (\13\10)?( |\t)+
		// token:         (any char but excluded stuff)+
		// quoted string: " (any char but double quotes and cointrol chars)* "
		// header:        Content-type = ...; charset=value(; ...)*
		//   where value is of type token, no LWS allowed between 'charset' and value
		// Note: we do not check for invalid chars in VALUE:
		//   this had better be done using pure ereg as below
		// Note 2: we might be removing whitespace/tabs that ought to be left in if
		//   the received charset is a quoted string. But nobody uses such charset names...

		/// @todo this test will pass if ANY header has charset specification, not only Content-Type. Fix it?
		$matches = array();
		if(preg_match('/;\s*charset\s*=([^;]+)/i', $httpheader, $matches))
		{
			return strtoupper(trim($matches[1], " \t\""));
		}

		// 2 - scan the first bytes of the data for a UTF-16 (or other) BOM pattern
		//     (source: http://www.w3.org/TR/2000/REC-xml-20001006)
		//     NOTE: actually, according to the spec, even if we find the BOM and determine
		//     an encoding, we should check if there is an encoding specified
		//     in the xml declaration, and verify if they match.
		/// @todo implement check as described above?
		/// @todo implement check for first bytes of string even without a BOM? (It sure looks harder than for cases WITH a BOM)
		if(preg_match('/^(\x00\x00\xFE\xFF|\xFF\xFE\x00\x00|\x00\x00\xFF\xFE|\xFE\xFF\x00\x00)/', $xmlchunk))
		{
			return 'UCS-4';
		}
		elseif(preg_match('/^(\xFE\xFF|\xFF\xFE)/', $xmlchunk))
		{
			return 'UTF-16';
		}
		elseif(preg_match('/^(\xEF\xBB\xBF)/', $xmlchunk))
		{
			return 'UTF-8';
		}

		// 3 - test if encoding is specified in the xml declaration
		// Details:
		// SPACE:         (#x20 | #x9 | #xD | #xA)+ === [ \x9\xD\xA]+
		// EQ:            SPACE?=SPACE? === [ \x9\xD\xA]*=[ \x9\xD\xA]*
		if (preg_match('/^<\?xml\s+version\s*=\s*'. "((?:\"[a-zA-Z0-9_.:-]+\")|(?:'[a-zA-Z0-9_.:-]+'))".
			'\s+encoding\s*=\s*' . "((?:\"[A-Za-z][A-Za-z0-9._-]*\")|(?:'[A-Za-z][A-Za-z0-9._-]*'))/",
			$xmlchunk, $matches))
		{
			return strtoupper(substr($matches[2], 1, -1));
		}

		// 4 - if mbstring is available, let it do the guesswork
		// NB: we favour finding an encoding that is compatible with what we can process
		if(extension_loaded('mbstring'))
		{
			if($encoding_prefs)
			{
				$enc = mb_detect_encoding($xmlchunk, $encoding_prefs);
			}
			else
			{
				$enc = mb_detect_encoding($xmlchunk);
			}
			// NB: mb_detect likes to call it ascii, xml parser likes to call it US_ASCII...
			// IANA also likes better US-ASCII, so go with it
			if($enc == 'ASCII')
			{
				$enc = 'US-'.$enc;
			}
			return $enc;
		}
		else
		{
			// no encoding specified: as per HTTP1.1 assume it is iso-8859-1?
			// Both RFC 2616 (HTTP 1.1) and 1945 (HTTP 1.0) clearly state that for text/xxx content types
			// this should be the standard. And we should be getting text/xml as request and response.
			// BUT we have to be backward compatible with the lib, which always used UTF-8 as default...
			return $GLOBALS['xmlrpc_defencoding'];
		}
	}

	/**
	* Checks if a given charset encoding is present in a list of encodings or
	* if it is a valid subset of any encoding in the list
	* @param string $encoding charset to be tested
	* @param mixed $validlist comma separated list of valid charsets (or array of charsets)
	*/
	function is_valid_charset($encoding, $validlist)
	{
		$charset_supersets = array(
			'US-ASCII' => array ('ISO-8859-1', 'ISO-8859-2', 'ISO-8859-3', 'ISO-8859-4',
				'ISO-8859-5', 'ISO-8859-6', 'ISO-8859-7', 'ISO-8859-8',
				'ISO-8859-9', 'ISO-8859-10', 'ISO-8859-11', 'ISO-8859-12',
				'ISO-8859-13', 'ISO-8859-14', 'ISO-8859-15', 'UTF-8',
				'EUC-JP', 'EUC-', 'EUC-KR', 'EUC-CN')
		);
		if (is_string($validlist))
			$validlist = explode(',', $validlist);
		if (@in_array(strtoupper($encoding), $validlist))
			return true;
		else
		{
			if (array_key_exists($encoding, $charset_supersets))
				foreach ($validlist as $allowed)
					if (in_array($allowed, $charset_supersets[$encoding]))
						return true;
				return false;
		}
	}

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/**
 * PHP-XMLRPC "wrapper" functions
 * Generate stubs to transparently access xmlrpc methods as php functions and viceversa
 *
 * @version $Id: xmlrpc_wrappers.inc,v 1.13 2008/09/20 01:23:47 ggiunta Exp $
 * @author Gaetano Giunta
 * @copyright (C) 2006-2009 G. Giunta
 * @license code licensed under the BSD License: http://phpxmlrpc.sourceforge.net/license.txt
 *
 * @todo separate introspection from code generation for func-2-method wrapping
 * @todo use some better templating system for code generation?
 * @todo implement method wrapping with preservation of php objs in calls
 * @todo when wrapping methods without obj rebuilding, use return_type = 'phpvals' (faster)
 * @todo implement self-parsing of php code for PHP <= 4
 */

	// requires: xmlrpc.inc

	/**
	* Given a string defining a php type or phpxmlrpc type (loosely defined: strings
	* accepted come from javadoc blocks), return corresponding phpxmlrpc type.
	* NB: for php 'resource' types returns empty string, since resources cannot be serialized;
	* for php class names returns 'struct', since php objects can be serialized as xmlrpc structs
	* for php arrays always return array, even though arrays sometiles serialize as json structs
	* @param string $phptype
	* @return string
	*/
	function php_2_xmlrpc_type($phptype)
	{
		switch(strtolower($phptype))
		{
			case 'string':
				return $GLOBALS['xmlrpcString'];
			case 'integer':
			case $GLOBALS['xmlrpcInt']: // 'int'
			case $GLOBALS['xmlrpcI4']:
				return $GLOBALS['xmlrpcInt'];
			case 'double':
				return $GLOBALS['xmlrpcDouble'];
			case 'boolean':
				return $GLOBALS['xmlrpcBoolean'];
			case 'array':
				return $GLOBALS['xmlrpcArray'];
			case 'object':
				return $GLOBALS['xmlrpcStruct'];
			case $GLOBALS['xmlrpcBase64']:
			case $GLOBALS['xmlrpcStruct']:
				return strtolower($phptype);
			case 'resource':
				return '';
			default:
				if(class_exists($phptype))
				{
					return $GLOBALS['xmlrpcStruct'];
				}
				else
				{
					// unknown: might be any 'extended' xmlrpc type
					return $GLOBALS['xmlrpcValue'];
				}
		}
	}

	/**
	* Given a string defining a phpxmlrpc type return corresponding php type.
	* @param string $xmlrpctype
	* @return string
	*/
	function xmlrpc_2_php_type($xmlrpctype)
	{
		switch(strtolower($xmlrpctype))
		{
			case 'base64':
			case 'datetime.iso8601':
			case 'string':
				return $GLOBALS['xmlrpcString'];
			case 'int':
			case 'i4':
				return 'integer';
			case 'struct':
			case 'array':
				return 'array';
			case 'double':
				return 'float';
			case 'undefined':
				return 'mixed';
			case 'boolean':
			case 'null':
			default:
				// unknown: might be any xmlrpc type
				return strtolower($xmlrpctype);
		}
	}

	/**
	* Given a user-defined PHP function, create a PHP 'wrapper' function that can
	* be exposed as xmlrpc method from an xmlrpc_server object and called from remote
	* clients (as well as its corresponding signature info).
	*
	* Since php is a typeless language, to infer types of input and output parameters,
	* it relies on parsing the javadoc-style comment block associated with the given
	* function. Usage of xmlrpc native types (such as datetime.dateTime.iso8601 and base64)
	* in the @param tag is also allowed, if you need the php function to receive/send
	* data in that particular format (note that base64 encoding/decoding is transparently
	* carried out by the lib, while datetime vals are passed around as strings)
	*
	* Known limitations:
	* - requires PHP 5.0.3 +
	* - only works for user-defined functions, not for PHP internal functions
	*   (reflection does not support retrieving number/type of params for those)
	* - functions returning php objects will generate special xmlrpc responses:
	*   when the xmlrpc decoding of those responses is carried out by this same lib, using
	*   the appropriate param in php_xmlrpc_decode, the php objects will be rebuilt.
	*   In short: php objects can be serialized, too (except for their resource members),
	*   using this function.
	*   Other libs might choke on the very same xml that will be generated in this case
	*   (i.e. it has a nonstandard attribute on struct element tags)
	* - usage of javadoc @param tags using param names in a different order from the
	*   function prototype is not considered valid (to be fixed?)
	*
	* Note that since rel. 2.0RC3 the preferred method to have the server call 'standard'
	* php functions (ie. functions not expecting a single xmlrpcmsg obj as parameter)
	* is by making use of the functions_parameters_type class member.
	*
	* @param string $funcname the name of the PHP user function to be exposed as xmlrpc method; array($obj, 'methodname') and array('class', 'methodname') are ok too
	* @param string $newfuncname (optional) name for function to be created
	* @param array $extra_options (optional) array of options for conversion. valid values include:
	*        bool  return_source when true, php code w. function definition will be returned, not evaluated
	*        bool  encode_php_objs let php objects be sent to server using the 'improved' xmlrpc notation, so server can deserialize them as php objects
	*        bool  decode_php_objs --- WARNING !!! possible security hazard. only use it with trusted servers ---
	*        bool  suppress_warnings  remove from produced xml any runtime warnings due to the php function being invoked
	* @return false on error, or an array containing the name of the new php function,
	*         its signature and docs, to be used in the server dispatch map
	*
	* @todo decide how to deal with params passed by ref: bomb out or allow?
	* @todo finish using javadoc info to build method sig if all params are named but out of order
	* @todo add a check for params of 'resource' type
	* @todo add some trigger_errors / error_log when returning false?
	* @todo what to do when the PHP function returns NULL? we are currently returning an empty string value...
	* @todo add an option to suppress php warnings in invocation of user function, similar to server debug level 3?
	* @todo if $newfuncname is empty, we could use create_user_func instead of eval, as it is possibly faster
	* @todo add a verbatim_object_copy parameter to allow avoiding the same obj instance?
	*/
	function wrap_php_function($funcname, $newfuncname='', $extra_options=array())
	{
		$buildit = isset($extra_options['return_source']) ? !($extra_options['return_source']) : true;
		$prefix = isset($extra_options['prefix']) ? $extra_options['prefix'] : 'xmlrpc';
		$encode_php_objects = isset($extra_options['encode_php_objs']) ? (bool)$extra_options['encode_php_objs'] : false;
		$decode_php_objects = isset($extra_options['decode_php_objs']) ? (bool)$extra_options['decode_php_objs'] : false;
		$catch_warnings = isset($extra_options['suppress_warnings']) && $extra_options['suppress_warnings'] ? '@' : '';

		if(version_compare(phpversion(), '5.0.3') == -1)
		{
			// up to php 5.0.3 some useful reflection methods were missing
			error_log('XML-RPC: cannot not wrap php functions unless running php version bigger than 5.0.3');
			return false;
		}

        $exists = false;
	    if (is_string($funcname) && strpos($funcname, '::') !== false)
	    {
	        $funcname = explode('::', $funcname);
	    }
        if(is_array($funcname))
        {
            if(count($funcname) < 2 || (!is_string($funcname[0]) && !is_object($funcname[0])))
            {
    			error_log('XML-RPC: syntax for function to be wrapped is wrong');
    			return false;
            }
            if(is_string($funcname[0]))
            {
                $plainfuncname = implode('::', $funcname);
            }
            elseif(is_object($funcname[0]))
            {
                $plainfuncname = get_class($funcname[0]) . '->' . $funcname[1];
            }
            $exists = method_exists($funcname[0], $funcname[1]);
            if (!$exists && version_compare(phpversion(), '5.1') < 0)
            {
               // workaround for php 5.0: static class methods are not seen by method_exists
               $exists = is_callable( $funcname );
            }
        }
        else
        {
            $plainfuncname = $funcname;
            $exists = function_exists($funcname);
        }

		if(!$exists)
		{
			error_log('XML-RPC: function to be wrapped is not defined: '.$plainfuncname);
			return false;
		}
		else
		{
			// determine name of new php function
			if($newfuncname == '')
			{
				if(is_array($funcname))
				{
    				if(is_string($funcname[0]))
        				$xmlrpcfuncname = "{$prefix}_".implode('_', $funcname);
    				else
    					$xmlrpcfuncname = "{$prefix}_".get_class($funcname[0]) . '_' . $funcname[1];
				}
				else
				{
					$xmlrpcfuncname = "{$prefix}_$funcname";
				}
			}
			else
			{
				$xmlrpcfuncname = $newfuncname;
			}
			while($buildit && function_exists($xmlrpcfuncname))
			{
				$xmlrpcfuncname .= 'x';
			}

			// start to introspect PHP code
			if(is_array($funcname))
			{
    			$func = new ReflectionMethod($funcname[0], $funcname[1]);
    			if($func->isPrivate())
    			{
    				error_log('XML-RPC: method to be wrapped is private: '.$plainfuncname);
    				return false;
    			}
    			if($func->isProtected())
    			{
    				error_log('XML-RPC: method to be wrapped is protected: '.$plainfuncname);
    				return false;
    			}
     			if($func->isConstructor())
    			{
    				error_log('XML-RPC: method to be wrapped is the constructor: '.$plainfuncname);
    				return false;
    			}
			    // php 503 always says isdestructor = true...
                if( version_compare(phpversion(), '5.0.3') != 0 && $func->isDestructor())
    			{
    				error_log('XML-RPC: method to be wrapped is the destructor: '.$plainfuncname);
    				return false;
    			}
    			if($func->isAbstract())
    			{
    				error_log('XML-RPC: method to be wrapped is abstract: '.$plainfuncname);
    				return false;
    			}
                /// @todo add more checks for static vs. nonstatic?
            }
			else
			{
    			$func = new ReflectionFunction($funcname);
            }
			if($func->isInternal())
			{
				// Note: from PHP 5.1.0 onward, we will possibly be able to use invokeargs
				// instead of getparameters to fully reflect internal php functions ?
				error_log('XML-RPC: function to be wrapped is internal: '.$plainfuncname);
				return false;
			}

			// retrieve parameter names, types and description from javadoc comments

			// function description
			$desc = '';
			// type of return val: by default 'any'
			$returns = $GLOBALS['xmlrpcValue'];
			// desc of return val
			$returnsDocs = '';
			// type + name of function parameters
			$paramDocs = array();

			$docs = $func->getDocComment();
			if($docs != '')
			{
				$docs = explode("\n", $docs);
				$i = 0;
				foreach($docs as $doc)
				{
					$doc = trim($doc, " \r\t/*");
					if(strlen($doc) && strpos($doc, '@') !== 0 && !$i)
					{
						if($desc)
						{
							$desc .= "\n";
						}
						$desc .= $doc;
					}
					elseif(strpos($doc, '@param') === 0)
					{
						// syntax: @param type [$name] desc
						if(preg_match('/@param\s+(\S+)(\s+\$\S+)?\s+(.+)/', $doc, $matches))
						{
							if(strpos($matches[1], '|'))
							{
								//$paramDocs[$i]['type'] = explode('|', $matches[1]);
								$paramDocs[$i]['type'] = 'mixed';
							}
							else
							{
								$paramDocs[$i]['type'] = $matches[1];
							}
							$paramDocs[$i]['name'] = trim($matches[2]);
							$paramDocs[$i]['doc'] = $matches[3];
						}
						$i++;
					}
					elseif(strpos($doc, '@return') === 0)
					{
						// syntax: @return type desc
						//$returns = preg_split('/\s+/', $doc);
						if(preg_match('/@return\s+(\S+)\s+(.+)/', $doc, $matches))
						{
							$returns = php_2_xmlrpc_type($matches[1]);
							if(isset($matches[2]))
							{
								$returnsDocs = $matches[2];
							}
						}
					}
				}
			}

			// execute introspection of actual function prototype
			$params = array();
			$i = 0;
			foreach($func->getParameters() as $paramobj)
			{
				$params[$i] = array();
				$params[$i]['name'] = '$'.$paramobj->getName();
				$params[$i]['isoptional'] = $paramobj->isOptional();
				$i++;
			}


			// start  building of PHP code to be eval'd
			$innercode = '';
			$i = 0;
			$parsvariations = array();
			$pars = array();
			$pnum = count($params);
			foreach($params as $param)
			{
				if (isset($paramDocs[$i]['name']) && $paramDocs[$i]['name'] && strtolower($paramDocs[$i]['name']) != strtolower($param['name']))
				{
					// param name from phpdoc info does not match param definition!
					$paramDocs[$i]['type'] = 'mixed';
				}

				if($param['isoptional'])
				{
					// this particular parameter is optional. save as valid previous list of parameters
					$innercode .= "if (\$paramcount > $i) {\n";
					$parsvariations[] = $pars;
				}
				$innercode .= "\$p$i = \$msg->getParam($i);\n";
				if ($decode_php_objects)
				{
					$innercode .= "if (\$p{$i}->kindOf() == 'scalar') \$p$i = \$p{$i}->scalarval(); else \$p$i = php_{$prefix}_decode(\$p$i, array('decode_php_objs'));\n";
				}
				else
				{
					$innercode .= "if (\$p{$i}->kindOf() == 'scalar') \$p$i = \$p{$i}->scalarval(); else \$p$i = php_{$prefix}_decode(\$p$i);\n";
				}

				$pars[] = "\$p$i";
				$i++;
				if($param['isoptional'])
				{
					$innercode .= "}\n";
				}
				if($i == $pnum)
				{
					// last allowed parameters combination
					$parsvariations[] = $pars;
				}
			}

			$sigs = array();
			$psigs = array();
			if(count($parsvariations) == 0)
			{
				// only known good synopsis = no parameters
				$parsvariations[] = array();
				$minpars = 0;
			}
			else
			{
				$minpars = count($parsvariations[0]);
			}

			if($minpars)
			{
				// add to code the check for min params number
				// NB: this check needs to be done BEFORE decoding param values
				$innercode = "\$paramcount = \$msg->getNumParams();\n" .
				"if (\$paramcount < $minpars) return new {$prefix}resp(0, {$GLOBALS['xmlrpcerr']['incorrect_params']}, '{$GLOBALS['xmlrpcstr']['incorrect_params']}');\n" . $innercode;
			}
			else
			{
				$innercode = "\$paramcount = \$msg->getNumParams();\n" . $innercode;
			}

			$innercode .= "\$np = false;\n";
			// since there are no closures in php, if we are given an object instance,
            // we store a pointer to it in a global var...
			if ( is_array($funcname) && is_object($funcname[0]) )
			{
			    $GLOBALS['xmlrpcWPFObjHolder'][$xmlrpcfuncname] =& $funcname[0];
			    $innercode .= "\$obj =& \$GLOBALS['xmlrpcWPFObjHolder']['$xmlrpcfuncname'];\n";
			    $realfuncname = '$obj->'.$funcname[1];
			}
			else
			{
    			$realfuncname = $plainfuncname;
            }
			foreach($parsvariations as $pars)
			{
				$innercode .= "if (\$paramcount == " . count($pars) . ") \$retval = {$catch_warnings}$realfuncname(" . implode(',', $pars) . "); else\n";
				// build a 'generic' signature (only use an appropriate return type)
				$sig = array($returns);
				$psig = array($returnsDocs);
				for($i=0; $i < count($pars); $i++)
				{
					if (isset($paramDocs[$i]['type']))
					{
						$sig[] = php_2_xmlrpc_type($paramDocs[$i]['type']);
					}
					else
					{
						$sig[] = $GLOBALS['xmlrpcValue'];
					}
					$psig[] = isset($paramDocs[$i]['doc']) ? $paramDocs[$i]['doc'] : '';
				}
				$sigs[] = $sig;
				$psigs[] = $psig;
			}
			$innercode .= "\$np = true;\n";
			$innercode .= "if (\$np) return new {$prefix}resp(0, {$GLOBALS['xmlrpcerr']['incorrect_params']}, '{$GLOBALS['xmlrpcstr']['incorrect_params']}'); else {\n";
			//$innercode .= "if (\$_xmlrpcs_error_occurred) return new xmlrpcresp(0, $GLOBALS['xmlrpcerr']user, \$_xmlrpcs_error_occurred); else\n";
			$innercode .= "if (is_a(\$retval, '{$prefix}resp')) return \$retval; else\n";
			if($returns == $GLOBALS['xmlrpcDateTime'] || $returns == $GLOBALS['xmlrpcBase64'])
			{
				$innercode .= "return new {$prefix}resp(new {$prefix}val(\$retval, '$returns'));";
			}
			else
			{
				if ($encode_php_objects)
					$innercode .= "return new {$prefix}resp(php_{$prefix}_encode(\$retval, array('encode_php_objs')));\n";
				else
					$innercode .= "return new {$prefix}resp(php_{$prefix}_encode(\$retval));\n";
			}
			// shall we exclude functions returning by ref?
			// if($func->returnsReference())
			// 	return false;
			$code = "function $xmlrpcfuncname(\$msg) {\n" . $innercode . "}\n}";
			//print_r($code);
			if ($buildit)
			{
				$allOK = 0;
				eval($code.'$allOK=1;');
				// alternative
				//$xmlrpcfuncname = create_function('$m', $innercode);

				if(!$allOK)
				{
					error_log('XML-RPC: could not create function '.$xmlrpcfuncname.' to wrap php function '.$plainfuncname);
					return false;
				}
			}

			/// @todo examine if $paramDocs matches $parsvariations and build array for
			/// usage as method signature, plus put together a nice string for docs

			$ret = array('function' => $xmlrpcfuncname, 'signature' => $sigs, 'docstring' => $desc, 'signature_docs' => $psigs, 'source' => $code);
			return $ret;
		}
	}

    /**
    * Given a user-defined PHP class or php object, map its methods onto a list of
	* PHP 'wrapper' functions that can be exposed as xmlrpc methods from an xmlrpc_server
	* object and called from remote clients (as well as their corresponding signature info).
	*
    * @param mixed $classname the name of the class whose methods are to be exposed as xmlrpc methods, or an object instance of that class
    * @param array $extra_options see the docs for wrap_php_method for more options
    *        string method_type 'static', 'nonstatic', 'all' and 'auto' (default); the latter will switch between static and non-static depending on wheter $classname is a class name or object instance
    * @return array or false on failure
    *
    * @todo get_class_methods will return both static and non-static methods.
    *       we have to differentiate the action, depending on wheter we recived a class name or object
    */
    function wrap_php_class($classname, $extra_options=array())
    {
		$methodfilter = isset($extra_options['method_filter']) ? $extra_options['method_filter'] : '';
		$methodtype = isset($extra_options['method_type']) ? $extra_options['method_type'] : 'auto';

        if(version_compare(phpversion(), '5.0.3') == -1)
		{
			// up to php 5.0.3 some useful reflection methods were missing
			error_log('XML-RPC: cannot not wrap php functions unless running php version bigger than 5.0.3');
			return false;
		}

        $result = array();
		$mlist = get_class_methods($classname);
		foreach($mlist as $mname)
		{
    		if ($methodfilter == '' || preg_match($methodfilter, $mname))
			{
    			// echo $mlist."\n";
    			$func = new ReflectionMethod($classname, $mname);
    			if(!$func->isPrivate() && !$func->isProtected() && !$func->isConstructor() && !$func->isDestructor() && !$func->isAbstract())
    			{
        			if(($func->isStatic && ($methodtype == 'all' || $methodtype == 'static' || ($methodtype == 'auto' && is_string($classname)))) ||
            			(!$func->isStatic && ($methodtype == 'all' || $methodtype == 'nonstatic' || ($methodtype == 'auto' && is_object($classname)))))
            		{
                        $methodwrap = wrap_php_function(array($classname, $mname), '', $extra_options);
                        if ( $methodwrap )
                        {
                            $result[$methodwrap['function']] = $methodwrap['function'];
                        }
                    }
    			}
			}
		}
        return $result;
    }

	/**
	* Given an xmlrpc client and a method name, register a php wrapper function
	* that will call it and return results using native php types for both
	* params and results. The generated php function will return an xmlrpcresp
	* oject for failed xmlrpc calls
	*
	* Known limitations:
	* - server must support system.methodsignature for the wanted xmlrpc method
	* - for methods that expose many signatures, only one can be picked (we
	*   could in priciple check if signatures differ only by number of params
	*   and not by type, but it would be more complication than we can spare time)
	* - nested xmlrpc params: the caller of the generated php function has to
	*   encode on its own the params passed to the php function if these are structs
	*   or arrays whose (sub)members include values of type datetime or base64
	*
	* Notes: the connection properties of the given client will be copied
	* and reused for the connection used during the call to the generated
	* php function.
	* Calling the generated php function 'might' be slow: a new xmlrpc client
	* is created on every invocation and an xmlrpc-connection opened+closed.
	* An extra 'debug' param is appended to param list of xmlrpc method, useful
	* for debugging purposes.
	*
	* @param xmlrpc_client $client     an xmlrpc client set up correctly to communicate with target server
	* @param string        $methodname the xmlrpc method to be mapped to a php function
	* @param array         $extra_options array of options that specify conversion details. valid ptions include
	*        integer       signum      the index of the method signature to use in mapping (if method exposes many sigs)
	*        integer       timeout     timeout (in secs) to be used when executing function/calling remote method
	*        string        protocol    'http' (default), 'http11' or 'https'
	*        string        new_function_name the name of php function to create. If unsepcified, lib will pick an appropriate name
	*        string        return_source if true return php code w. function definition instead fo function name
	*        bool          encode_php_objs let php objects be sent to server using the 'improved' xmlrpc notation, so server can deserialize them as php objects
	*        bool          decode_php_objs --- WARNING !!! possible security hazard. only use it with trusted servers ---
	*        mixed         return_on_fault a php value to be returned when the xmlrpc call fails/returns a fault response (by default the xmlrpcresp object is returned in this case). If a string is used, '%faultCode%' and '%faultString%' tokens will be substituted with actual error values
	*        bool          debug        set it to 1 or 2 to see debug results of querying server for method synopsis
	* @return string                   the name of the generated php function (or false) - OR AN ARRAY...
	*/
	function wrap_xmlrpc_method($client, $methodname, $extra_options=0, $timeout=0, $protocol='', $newfuncname='')
	{
		// mind numbing: let caller use sane calling convention (as per javadoc, 3 params),
		// OR the 2.0 calling convention (no options) - we really love backward compat, don't we?
		if (!is_array($extra_options))
		{
			$signum = $extra_options;
			$extra_options = array();
		}
		else
		{
			$signum = isset($extra_options['signum']) ? (int)$extra_options['signum'] : 0;
			$timeout = isset($extra_options['timeout']) ? (int)$extra_options['timeout'] : 0;
			$protocol = isset($extra_options['protocol']) ? $extra_options['protocol'] : '';
			$newfuncname = isset($extra_options['new_function_name']) ? $extra_options['new_function_name'] : '';
		}
		//$encode_php_objects = in_array('encode_php_objects', $extra_options);
		//$verbatim_client_copy = in_array('simple_client_copy', $extra_options) ? 1 :
		//	in_array('build_class_code', $extra_options) ? 2 : 0;

		$encode_php_objects = isset($extra_options['encode_php_objs']) ? (bool)$extra_options['encode_php_objs'] : false;
		$decode_php_objects = isset($extra_options['decode_php_objs']) ? (bool)$extra_options['decode_php_objs'] : false;
		$simple_client_copy = isset($extra_options['simple_client_copy']) ? (int)($extra_options['simple_client_copy']) : 0;
		$buildit = isset($extra_options['return_source']) ? !($extra_options['return_source']) : true;
		$prefix = isset($extra_options['prefix']) ? $extra_options['prefix'] : 'xmlrpc';
		if (isset($extra_options['return_on_fault']))
		{
			$decode_fault = true;
			$fault_response = $extra_options['return_on_fault'];
		}
		else
		{
			$decode_fault = false;
			$fault_response = '';
		}
		$debug = isset($extra_options['debug']) ? ($extra_options['debug']) : 0;

		$msgclass = $prefix.'msg';
		$valclass = $prefix.'val';
		$decodefunc = 'php_'.$prefix.'_decode';

		$msg = new $msgclass('system.methodSignature');
		$msg->addparam(new $valclass($methodname));
		$client->setDebug($debug);
		$response =& $client->send($msg, $timeout, $protocol);
		if($response->faultCode())
		{
			error_log('XML-RPC: could not retrieve method signature from remote server for method '.$methodname);
			return false;
		}
		else
		{
			$msig = $response->value();
			if ($client->return_type != 'phpvals')
			{
				$msig = $decodefunc($msig);
			}
			if(!is_array($msig) || count($msig) <= $signum)
			{
				error_log('XML-RPC: could not retrieve method signature nr.'.$signum.' from remote server for method '.$methodname);
				return false;
			}
			else
			{
				// pick a suitable name for the new function, avoiding collisions
				if($newfuncname != '')
				{
					$xmlrpcfuncname = $newfuncname;
				}
				else
				{
					// take care to insure that methodname is translated to valid
					// php function name
					$xmlrpcfuncname = $prefix.'_'.preg_replace(array('/\./', '/[^a-zA-Z0-9_\x7f-\xff]/'),
						array('_', ''), $methodname);
				}
				while($buildit && function_exists($xmlrpcfuncname))
				{
					$xmlrpcfuncname .= 'x';
				}

				$msig = $msig[$signum];
				$mdesc = '';
				// if in 'offline' mode, get method description too.
				// in online mode, favour speed of operation
				if(!$buildit)
				{
					$msg = new $msgclass('system.methodHelp');
					$msg->addparam(new $valclass($methodname));
					$response =& $client->send($msg, $timeout, $protocol);
					if (!$response->faultCode())
					{
						$mdesc = $response->value();
						if ($client->return_type != 'phpvals')
						{
							$mdesc = $mdesc->scalarval();
						}
					}
				}

				$results = build_remote_method_wrapper_code($client, $methodname,
					$xmlrpcfuncname, $msig, $mdesc, $timeout, $protocol, $simple_client_copy,
					$prefix, $decode_php_objects, $encode_php_objects, $decode_fault,
					$fault_response);

				//print_r($code);
				if ($buildit)
				{
					$allOK = 0;
					eval($results['source'].'$allOK=1;');
					// alternative
					//$xmlrpcfuncname = create_function('$m', $innercode);
					if($allOK)
					{
						return $xmlrpcfuncname;
					}
					else
					{
						error_log('XML-RPC: could not create function '.$xmlrpcfuncname.' to wrap remote method '.$methodname);
						return false;
					}
				}
				else
				{
					$results['function'] = $xmlrpcfuncname;
					return $results;
				}
			}
		}
	}

	/**
	* Similar to wrap_xmlrpc_method, but will generate a php class that wraps
	* all xmlrpc methods exposed by the remote server as own methods.
	* For more details see wrap_xmlrpc_method.
	* @param xmlrpc_client $client the client obj all set to query the desired server
	* @param array $extra_options list of options for wrapped code
	* @return mixed false on error, the name of the created class if all ok or an array with code, class name and comments (if the appropriatevoption is set in extra_options)
	*/
	function wrap_xmlrpc_server($client, $extra_options=array())
	{
		$methodfilter = isset($extra_options['method_filter']) ? $extra_options['method_filter'] : '';
		//$signum = isset($extra_options['signum']) ? (int)$extra_options['signum'] : 0;
		$timeout = isset($extra_options['timeout']) ? (int)$extra_options['timeout'] : 0;
		$protocol = isset($extra_options['protocol']) ? $extra_options['protocol'] : '';
		$newclassname = isset($extra_options['new_class_name']) ? $extra_options['new_class_name'] : '';
		$encode_php_objects = isset($extra_options['encode_php_objs']) ? (bool)$extra_options['encode_php_objs'] : false;
		$decode_php_objects = isset($extra_options['decode_php_objs']) ? (bool)$extra_options['decode_php_objs'] : false;
		$verbatim_client_copy = isset($extra_options['simple_client_copy']) ? !($extra_options['simple_client_copy']) : true;
		$buildit = isset($extra_options['return_source']) ? !($extra_options['return_source']) : true;
		$prefix = isset($extra_options['prefix']) ? $extra_options['prefix'] : 'xmlrpc';

		$msgclass = $prefix.'msg';
		//$valclass = $prefix.'val';
		$decodefunc = 'php_'.$prefix.'_decode';

		$msg = new $msgclass('system.listMethods');
		$response =& $client->send($msg, $timeout, $protocol);
		if($response->faultCode())
		{
			error_log('XML-RPC: could not retrieve method list from remote server');
			return false;
		}
		else
		{
			$mlist = $response->value();
			if ($client->return_type != 'phpvals')
			{
				$mlist = $decodefunc($mlist);
			}
			if(!is_array($mlist) || !count($mlist))
			{
				error_log('XML-RPC: could not retrieve meaningful method list from remote server');
				return false;
			}
			else
			{
				// pick a suitable name for the new function, avoiding collisions
				if($newclassname != '')
				{
					$xmlrpcclassname = $newclassname;
				}
				else
				{
					$xmlrpcclassname = $prefix.'_'.preg_replace(array('/\./', '/[^a-zA-Z0-9_\x7f-\xff]/'),
						array('_', ''), $client->server).'_client';
				}
				while($buildit && class_exists($xmlrpcclassname))
				{
					$xmlrpcclassname .= 'x';
				}

				/// @todo add function setdebug() to new class, to enable/disable debugging
				$source = "class $xmlrpcclassname\n{\nvar \$client;\n\n";
				$source .= "function $xmlrpcclassname()\n{\n";
				$source .= build_client_wrapper_code($client, $verbatim_client_copy, $prefix);
				$source .= "\$this->client =& \$client;\n}\n\n";
				$opts = array('simple_client_copy' => 2, 'return_source' => true,
					'timeout' => $timeout, 'protocol' => $protocol,
					'encode_php_objs' => $encode_php_objects, 'prefix' => $prefix,
					'decode_php_objs' => $decode_php_objects
					);
				/// @todo build javadoc for class definition, too
				foreach($mlist as $mname)
				{
					if ($methodfilter == '' || preg_match($methodfilter, $mname))
					{
						$opts['new_function_name'] = preg_replace(array('/\./', '/[^a-zA-Z0-9_\x7f-\xff]/'),
							array('_', ''), $mname);
						$methodwrap = wrap_xmlrpc_method($client, $mname, $opts);
						if ($methodwrap)
						{
							if (!$buildit)
							{
								$source .= $methodwrap['docstring'];
							}
							$source .= $methodwrap['source']."\n";
						}
						else
						{
							error_log('XML-RPC: will not create class method to wrap remote method '.$mname);
						}
					}
				}
				$source .= "}\n";
				if ($buildit)
				{
					$allOK = 0;
					eval($source.'$allOK=1;');
					// alternative
					//$xmlrpcfuncname = create_function('$m', $innercode);
					if($allOK)
					{
						return $xmlrpcclassname;
					}
					else
					{
						error_log('XML-RPC: could not create class '.$xmlrpcclassname.' to wrap remote server '.$client->server);
						return false;
					}
				}
				else
				{
					return array('class' => $xmlrpcclassname, 'code' => $source, 'docstring' => '');
				}
			}
		}
	}

	/**
	* Given the necessary info, build php code that creates a new function to
	* invoke a remote xmlrpc method.
	* Take care that no full checking of input parameters is done to ensure that
	* valid php code is emitted.
	* Note: real spaghetti code follows...
	* @access private
	*/
	function build_remote_method_wrapper_code($client, $methodname, $xmlrpcfuncname,
		$msig, $mdesc='', $timeout=0, $protocol='', $client_copy_mode=0, $prefix='xmlrpc',
		$decode_php_objects=false, $encode_php_objects=false, $decode_fault=false,
		$fault_response='')
	{
		$code = "function $xmlrpcfuncname (";
		if ($client_copy_mode < 2)
		{
			// client copy mode 0 or 1 == partial / full client copy in emitted code
			$innercode = build_client_wrapper_code($client, $client_copy_mode, $prefix);
			$innercode .= "\$client->setDebug(\$debug);\n";
			$this_ = '';
		}
		else
		{
			// client copy mode 2 == no client copy in emitted code
			$innercode = '';
			$this_ = 'this->';
		}
		$innercode .= "\$msg = new {$prefix}msg('$methodname');\n";

		if ($mdesc != '')
		{
			// take care that PHP comment is not terminated unwillingly by method description
			$mdesc = "/**\n* ".str_replace('*/', '* /', $mdesc)."\n";
		}
		else
		{
			$mdesc = "/**\nFunction $xmlrpcfuncname\n";
		}

		// param parsing
		$plist = array();
		$pcount = count($msig);
		for($i = 1; $i < $pcount; $i++)
		{
			$plist[] = "\$p$i";
			$ptype = $msig[$i];
			if($ptype == 'i4' || $ptype == 'int' || $ptype == 'boolean' || $ptype == 'double' ||
				$ptype == 'string' || $ptype == 'dateTime.iso8601' || $ptype == 'base64' || $ptype == 'null')
			{
				// only build directly xmlrpcvals when type is known and scalar
				$innercode .= "\$p$i = new {$prefix}val(\$p$i, '$ptype');\n";
			}
			else
			{
				if ($encode_php_objects)
				{
					$innercode .= "\$p$i =& php_{$prefix}_encode(\$p$i, array('encode_php_objs'));\n";
				}
				else
				{
					$innercode .= "\$p$i =& php_{$prefix}_encode(\$p$i);\n";
				}
			}
			$innercode .= "\$msg->addparam(\$p$i);\n";
			$mdesc .= '* @param '.xmlrpc_2_php_type($ptype)." \$p$i\n";
		}
		if ($client_copy_mode < 2)
		{
			$plist[] = '$debug=0';
			$mdesc .= "* @param int \$debug when 1 (or 2) will enable debugging of the underlying {$prefix} call (defaults to 0)\n";
		}
		$plist = implode(', ', $plist);
		$mdesc .= '* @return '.xmlrpc_2_php_type($msig[0])." (or an {$prefix}resp obj instance if call fails)\n*/\n";

		$innercode .= "\$res =& \${$this_}client->send(\$msg, $timeout, '$protocol');\n";
		if ($decode_fault)
		{
			if (is_string($fault_response) && ((strpos($fault_response, '%faultCode%') !== false) || (strpos($fault_response, '%faultString%') !== false)))
			{
				$respcode = "str_replace(array('%faultCode%', '%faultString%'), array(\$res->faultCode(), \$res->faultString()), '".str_replace("'", "''", $fault_response)."')";
			}
			else
			{
				$respcode = var_export($fault_response, true);
			}
		}
		else
		{
			$respcode = '$res';
		}
		if ($decode_php_objects)
		{
			$innercode .= "if (\$res->faultcode()) return $respcode; else return php_{$prefix}_decode(\$res->value(), array('decode_php_objs'));";
		}
		else
		{
			$innercode .= "if (\$res->faultcode()) return $respcode; else return php_{$prefix}_decode(\$res->value());";
		}

		$code = $code . $plist. ") {\n" . $innercode . "\n}\n";

		return array('source' => $code, 'docstring' => $mdesc);
	}

	/**
	* Given necessary info, generate php code that will rebuild a client object
	* Take care that no full checking of input parameters is done to ensure that
	* valid php code is emitted.
	* @access private
	*/
	function build_client_wrapper_code($client, $verbatim_client_copy, $prefix='xmlrpc')
	{
		$code = "\$client = new {$prefix}_client('".str_replace("'", "\'", $client->path).
			"', '" . str_replace("'", "\'", $client->server) . "', $client->port);\n";

		// copy all client fields to the client that will be generated runtime
		// (this provides for future expansion or subclassing of client obj)
		if ($verbatim_client_copy)
		{
			foreach($client as $fld => $val)
			{
				if($fld != 'debug' && $fld != 'return_type')
				{
					$val = var_export($val, true);
					$code .= "\$client->$fld = $val;\n";
				}
			}
		}
		// only make sure that client always returns the correct data type
		$code .= "\$client->return_type = '{$prefix}vals';\n";
		//$code .= "\$client->setDebug(\$debug);\n";
		return $code;
	}
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