xmlrpcs.inc

这个包主要用来帮助我们了解carrot2的格式

<?php
// by Edd Dumbill (C) 1999-2002
// <[e-mail]>
// Id: xmlrpcs.inc,v 1.40 2005/11/21 10:56:20 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

	// listMethods: either a string, or nothing
	$_xmlrpcs_listMethods_sig=array(array($GLOBALS['xmlrpcArray'], $GLOBALS['xmlrpcString']), array($GLOBALS['xmlrpcArray']));
	$_xmlrpcs_listMethods_doc='This method lists all the methods that the XML-RPC server knows how to dispatch';
	function _xmlrpcs_listMethods($server, $m)
	{
		$outAr=array();
		foreach($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');
			}
		}
		$v=&new xmlrpcval($outAr, 'array');
		return new xmlrpcresp($v);
	}

	$_xmlrpcs_methodSignature_sig=array(array($GLOBALS['xmlrpcArray'], $GLOBALS['xmlrpcString']));
	$_xmlrpcs_methodSignature_doc='Returns an array of known signatures (an array of arrays) for the method name passed. If no signatures are known, returns a none-array (test for type != array to detect missing signature)';
	function _xmlrpcs_methodSignature($server, $m)
	{
		$methName=$m->getParam(0);
		$methName=$methName->scalarval();
		if(ereg("^system\.", $methName))
		{
			$dmap=$GLOBALS['_xmlrpcs_dmap']; $sysCall=1;
		}
		else
		{
			$dmap=$server->dmap; $sysCall=0;
		}
		//	print "<!-- ${methName} -->\n";
		if(isset($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, shouldn't we be returning an empty
				// array here???
				$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']));
	$_xmlrpcs_methodHelp_doc='Returns help text if defined for the method passed, otherwise returns an empty string';
	function _xmlrpcs_methodHelp($server, $m)
	{
		$methName=$m->getParam(0);
		$methName=$methName->scalarval();
		if(ereg("^system\.", $methName))
		{
			$dmap=$GLOBALS['_xmlrpcs_dmap']; $sysCall=1;
		}
		else
		{
			$dmap=$server->dmap; $sysCall=0;
		}
		// print "<!-- ${methName} -->\n";
		if(isset($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';

	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($server, $m)
	{
		$calls = $m->getParam(0);
		$numCalls = $calls->arraysize();
		$result = array();

		for($i = 0; $i < $numCalls; $i++)
		{
			$call = $calls->arraymem($i);
			$result[$i] = _xmlrpcs_multicall_do_call($server, $call);
		}

		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),
		'system.methodHelp' => array(
			'function' => '_xmlrpcs_methodHelp',
			'signature' => $_xmlrpcs_methodHelp_sig,
			'docstring' => $_xmlrpcs_methodHelp_doc),
		'system.methodSignature' => array(
			'function' => '_xmlrpcs_methodSignature',
			'signature' => $_xmlrpcs_methodSignature_sig,
			'docstring' => $_xmlrpcs_methodSignature_doc),
		'system.multicall' => array(
			'function' => '_xmlrpcs_multicall',
			'signature' => $_xmlrpcs_multicall_sig,
			'docstring' => $_xmlrpcs_multicall_doc
		)
	);

	$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, $context=null)
	{
		//if($errcode != E_NOTICE && $errcode != E_WARNING && $errcode != E_USER_NOTICE && $errcode != E_USER_WARNING)
		if($errcode != 2048) // do not use E_STRICT by name, since on PHP 4 it will not be defined
		{
			$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 teh 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']))
				{
					$GLOBALS['_xmlrpcs_prev_ehandler'][0]->$GLOBALS['_xmlrpcs_prev_ehandler'][1]($errcode, $errstring, $filename, $lineno, $context);
				}
				else
				{
					$GLOBALS['_xmlrpcs_prev_ehandler']($errcode, $errstring, $filename, $lineno, $context);
				}
			}
		}
	}

	$GLOBALS['_xmlrpc_debuginfo']='';
	function xmlrpc_debugmsg($m)
	{
		$GLOBALS['_xmlrpc_debuginfo']=$GLOBALS['_xmlrpc_debuginfo'] . $m . "\n";
	}

	class xmlrpc_server
	{
		var $dmap=array();
		/// 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;
		/**
		* 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();
		var $xml_header = "<?xml version=\"1.0\" ?>\n";

		function xmlrpc_server($dispMap='', $serviceNow=1)
		{
			// 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();
				}
			}
		}

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

		function serializeDebug()
		{
			if($GLOBALS['_xmlrpc_debuginfo']!='')
			{
				// Tough encoding problem: which charset should we assume for debug info?