1246 lines
40 KiB
PHP
1246 lines
40 KiB
PHP
<?php
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// by Edd Dumbill (C) 1999-2002
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// <edd@usefulinc.com>
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// $Id: xmlrpcs.inc,v 1.71 2008/10/29 23:41:28 ggiunta Exp $
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// Copyright (c) 1999,2000,2002 Edd Dumbill.
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions
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// are met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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//
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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//
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// * Neither the name of the "XML-RPC for PHP" nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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// REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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// OF THE POSSIBILITY OF SUCH DAMAGE.
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// XML RPC Server class
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// requires: xmlrpc.inc
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$GLOBALS['xmlrpcs_capabilities'] = array(
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// xmlrpc spec: always supported
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'xmlrpc' => new xmlrpcval(array(
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'specUrl' => new xmlrpcval('http://www.xmlrpc.com/spec', 'string'),
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'specVersion' => new xmlrpcval(1, 'int')
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), 'struct'),
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// if we support system.xxx functions, we always support multicall, too...
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// Note that, as of 2006/09/17, the following URL does not respond anymore
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'system.multicall' => new xmlrpcval(array(
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'specUrl' => new xmlrpcval('http://www.xmlrpc.com/discuss/msgReader$1208', 'string'),
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'specVersion' => new xmlrpcval(1, 'int')
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), 'struct'),
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// introspection: version 2! we support 'mixed', too
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'introspection' => new xmlrpcval(array(
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'specUrl' => new xmlrpcval('http://phpxmlrpc.sourceforge.net/doc-2/ch10.html', 'string'),
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'specVersion' => new xmlrpcval(2, 'int')
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), 'struct')
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);
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/* Functions that implement system.XXX methods of xmlrpc servers */
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$_xmlrpcs_getCapabilities_sig=array(array($GLOBALS['xmlrpcStruct']));
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$_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';
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$_xmlrpcs_getCapabilities_sdoc=array(array('list of capabilities, described as structs with a version number and url for the spec'));
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function _xmlrpcs_getCapabilities($server, $m=null)
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{
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$outAr = $GLOBALS['xmlrpcs_capabilities'];
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// NIL extension
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if ($GLOBALS['xmlrpc_null_extension']) {
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$outAr['nil'] = new xmlrpcval(array(
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'specUrl' => new xmlrpcval('http://www.ontosys.com/xml-rpc/extensions.php', 'string'),
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'specVersion' => new xmlrpcval(1, 'int')
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), 'struct');
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}
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return new xmlrpcresp(new xmlrpcval($outAr, 'struct'));
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}
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// listMethods: signature was either a string, or nothing.
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// The useless string variant has been removed
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$_xmlrpcs_listMethods_sig=array(array($GLOBALS['xmlrpcArray']));
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$_xmlrpcs_listMethods_doc='This method lists all the methods that the XML-RPC server knows how to dispatch';
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$_xmlrpcs_listMethods_sdoc=array(array('list of method names'));
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function _xmlrpcs_listMethods($server, $m=null) // if called in plain php values mode, second param is missing
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{
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$outAr=array();
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foreach($server->dmap as $key => $val)
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{
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$outAr[]=new xmlrpcval($key, 'string');
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}
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if($server->allow_system_funcs)
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{
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foreach($GLOBALS['_xmlrpcs_dmap'] as $key => $val)
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{
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$outAr[]=new xmlrpcval($key, 'string');
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}
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}
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return new xmlrpcresp(new xmlrpcval($outAr, 'array'));
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}
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$_xmlrpcs_methodSignature_sig=array(array($GLOBALS['xmlrpcArray'], $GLOBALS['xmlrpcString']));
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$_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)';
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$_xmlrpcs_methodSignature_sdoc=array(array('list of known signatures, each sig being an array of xmlrpc type names', 'name of method to be described'));
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function _xmlrpcs_methodSignature($server, $m)
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{
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// let accept as parameter both an xmlrpcval or string
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if (is_object($m))
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{
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$methName=$m->getParam(0);
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$methName=$methName->scalarval();
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}
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else
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{
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$methName=$m;
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}
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if(strpos($methName, "system.") === 0)
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{
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$dmap=$GLOBALS['_xmlrpcs_dmap']; $sysCall=1;
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}
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else
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{
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$dmap=$server->dmap; $sysCall=0;
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}
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if(isset($dmap[$methName]))
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{
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if(isset($dmap[$methName]['signature']))
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{
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$sigs=array();
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foreach($dmap[$methName]['signature'] as $inSig)
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{
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$cursig=array();
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foreach($inSig as $sig)
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{
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$cursig[]=new xmlrpcval($sig, 'string');
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}
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$sigs[]=new xmlrpcval($cursig, 'array');
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}
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$r=new xmlrpcresp(new xmlrpcval($sigs, 'array'));
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}
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else
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{
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// NB: according to the official docs, we should be returning a
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// "none-array" here, which means not-an-array
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$r=new xmlrpcresp(new xmlrpcval('undef', 'string'));
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}
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}
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else
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{
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$r=new xmlrpcresp(0,$GLOBALS['xmlrpcerr']['introspect_unknown'], $GLOBALS['xmlrpcstr']['introspect_unknown']);
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}
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return $r;
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}
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$_xmlrpcs_methodHelp_sig=array(array($GLOBALS['xmlrpcString'], $GLOBALS['xmlrpcString']));
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$_xmlrpcs_methodHelp_doc='Returns help text if defined for the method passed, otherwise returns an empty string';
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$_xmlrpcs_methodHelp_sdoc=array(array('method description', 'name of the method to be described'));
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function _xmlrpcs_methodHelp($server, $m)
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{
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// let accept as parameter both an xmlrpcval or string
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if (is_object($m))
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{
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$methName=$m->getParam(0);
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$methName=$methName->scalarval();
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}
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else
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{
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$methName=$m;
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}
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if(strpos($methName, "system.") === 0)
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{
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$dmap=$GLOBALS['_xmlrpcs_dmap']; $sysCall=1;
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}
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else
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{
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$dmap=$server->dmap; $sysCall=0;
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}
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if(isset($dmap[$methName]))
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{
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if(isset($dmap[$methName]['docstring']))
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{
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$r=new xmlrpcresp(new xmlrpcval($dmap[$methName]['docstring']), 'string');
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}
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else
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{
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$r=new xmlrpcresp(new xmlrpcval('', 'string'));
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}
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}
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else
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{
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$r=new xmlrpcresp(0, $GLOBALS['xmlrpcerr']['introspect_unknown'], $GLOBALS['xmlrpcstr']['introspect_unknown']);
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}
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return $r;
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}
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$_xmlrpcs_multicall_sig = array(array($GLOBALS['xmlrpcArray'], $GLOBALS['xmlrpcArray']));
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$_xmlrpcs_multicall_doc = 'Boxcar multiple RPC calls in one request. See http://www.xmlrpc.com/discuss/msgReader$1208 for details';
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$_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"'));
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function _xmlrpcs_multicall_error($err)
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{
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if(is_string($err))
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{
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$str = $GLOBALS['xmlrpcstr']["multicall_${err}"];
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$code = $GLOBALS['xmlrpcerr']["multicall_${err}"];
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}
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else
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{
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$code = $err->faultCode();
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$str = $err->faultString();
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}
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$struct = array();
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$struct['faultCode'] = new xmlrpcval($code, 'int');
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$struct['faultString'] = new xmlrpcval($str, 'string');
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return new xmlrpcval($struct, 'struct');
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}
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function _xmlrpcs_multicall_do_call($server, $call)
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{
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if($call->kindOf() != 'struct')
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{
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return _xmlrpcs_multicall_error('notstruct');
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}
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$methName = @$call->structmem('methodName');
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if(!$methName)
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{
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return _xmlrpcs_multicall_error('nomethod');
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}
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if($methName->kindOf() != 'scalar' || $methName->scalartyp() != 'string')
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{
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return _xmlrpcs_multicall_error('notstring');
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}
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if($methName->scalarval() == 'system.multicall')
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{
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return _xmlrpcs_multicall_error('recursion');
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}
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$params = @$call->structmem('params');
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if(!$params)
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{
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return _xmlrpcs_multicall_error('noparams');
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}
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if($params->kindOf() != 'array')
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{
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return _xmlrpcs_multicall_error('notarray');
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}
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$numParams = $params->arraysize();
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$msg = new xmlrpcmsg($methName->scalarval());
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for($i = 0; $i < $numParams; $i++)
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{
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if(!$msg->addParam($params->arraymem($i)))
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{
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$i++;
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return _xmlrpcs_multicall_error(new xmlrpcresp(0,
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$GLOBALS['xmlrpcerr']['incorrect_params'],
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$GLOBALS['xmlrpcstr']['incorrect_params'] . ": probable xml error in param " . $i));
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}
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}
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$result = $server->execute($msg);
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if($result->faultCode() != 0)
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{
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return _xmlrpcs_multicall_error($result); // Method returned fault.
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}
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return new xmlrpcval(array($result->value()), 'array');
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}
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function _xmlrpcs_multicall_do_call_phpvals($server, $call)
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{
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if(!is_array($call))
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{
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return _xmlrpcs_multicall_error('notstruct');
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}
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if(!array_key_exists('methodName', $call))
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{
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return _xmlrpcs_multicall_error('nomethod');
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}
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if (!is_string($call['methodName']))
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{
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return _xmlrpcs_multicall_error('notstring');
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}
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if($call['methodName'] == 'system.multicall')
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{
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return _xmlrpcs_multicall_error('recursion');
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}
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if(!array_key_exists('params', $call))
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{
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return _xmlrpcs_multicall_error('noparams');
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}
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if(!is_array($call['params']))
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{
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return _xmlrpcs_multicall_error('notarray');
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}
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// this is a real dirty and simplistic hack, since we might have received a
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// base64 or datetime values, but they will be listed as strings here...
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$numParams = count($call['params']);
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$pt = array();
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foreach($call['params'] as $val)
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$pt[] = php_2_xmlrpc_type(gettype($val));
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$result = $server->execute($call['methodName'], $call['params'], $pt);
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if($result->faultCode() != 0)
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{
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return _xmlrpcs_multicall_error($result); // Method returned fault.
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}
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return new xmlrpcval(array($result->value()), 'array');
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}
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function _xmlrpcs_multicall($server, $m)
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{
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$result = array();
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// let accept a plain list of php parameters, beside a single xmlrpc msg object
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if (is_object($m))
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{
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$calls = $m->getParam(0);
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$numCalls = $calls->arraysize();
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for($i = 0; $i < $numCalls; $i++)
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{
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$call = $calls->arraymem($i);
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$result[$i] = _xmlrpcs_multicall_do_call($server, $call);
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}
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}
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else
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{
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$numCalls=count($m);
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for($i = 0; $i < $numCalls; $i++)
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{
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$result[$i] = _xmlrpcs_multicall_do_call_phpvals($server, $m[$i]);
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}
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}
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return new xmlrpcresp(new xmlrpcval($result, 'array'));
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}
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$GLOBALS['_xmlrpcs_dmap']=array(
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'system.listMethods' => array(
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'function' => '_xmlrpcs_listMethods',
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'signature' => $_xmlrpcs_listMethods_sig,
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'docstring' => $_xmlrpcs_listMethods_doc,
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'signature_docs' => $_xmlrpcs_listMethods_sdoc),
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'system.methodHelp' => array(
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'function' => '_xmlrpcs_methodHelp',
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'signature' => $_xmlrpcs_methodHelp_sig,
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'docstring' => $_xmlrpcs_methodHelp_doc,
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'signature_docs' => $_xmlrpcs_methodHelp_sdoc),
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'system.methodSignature' => array(
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'function' => '_xmlrpcs_methodSignature',
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'signature' => $_xmlrpcs_methodSignature_sig,
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'docstring' => $_xmlrpcs_methodSignature_doc,
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'signature_docs' => $_xmlrpcs_methodSignature_sdoc),
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'system.multicall' => array(
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'function' => '_xmlrpcs_multicall',
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'signature' => $_xmlrpcs_multicall_sig,
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'docstring' => $_xmlrpcs_multicall_doc,
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'signature_docs' => $_xmlrpcs_multicall_sdoc),
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'system.getCapabilities' => array(
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'function' => '_xmlrpcs_getCapabilities',
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'signature' => $_xmlrpcs_getCapabilities_sig,
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'docstring' => $_xmlrpcs_getCapabilities_doc,
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'signature_docs' => $_xmlrpcs_getCapabilities_sdoc)
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);
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$GLOBALS['_xmlrpcs_occurred_errors'] = '';
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$GLOBALS['_xmlrpcs_prev_ehandler'] = '';
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/**
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* Error handler used to track errors that occur during server-side execution of PHP code.
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* This allows to report back to the client whether an internal error has occurred or not
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* using an xmlrpc response object, instead of letting the client deal with the html junk
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* that a PHP execution error on the server generally entails.
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*
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* NB: in fact a user defined error handler can only handle WARNING, NOTICE and USER_* errors.
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*
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*/
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function _xmlrpcs_errorHandler($errcode, $errstring, $filename=null, $lineno=null, $context=null)
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{
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// obey the @ protocol
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if (error_reporting() == 0)
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return;
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//if($errcode != E_NOTICE && $errcode != E_WARNING && $errcode != E_USER_NOTICE && $errcode != E_USER_WARNING)
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if($errcode != E_STRICT)
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{
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$GLOBALS['_xmlrpcs_occurred_errors'] = $GLOBALS['_xmlrpcs_occurred_errors'] . $errstring . "\n";
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}
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// Try to avoid as much as possible disruption to the previous error handling
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// mechanism in place
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if($GLOBALS['_xmlrpcs_prev_ehandler'] == '')
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{
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// The previous error handler was the default: all we should do is log error
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// to the default error log (if level high enough)
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if(ini_get('log_errors') && (intval(ini_get('error_reporting')) & $errcode))
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{
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error_log($errstring);
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}
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}
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else
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{
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// Pass control on to previous error handler, trying to avoid loops...
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if($GLOBALS['_xmlrpcs_prev_ehandler'] != '_xmlrpcs_errorHandler')
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{
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// NB: this code will NOT work on php < 4.0.2: only 2 params were used for error handlers
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if(is_array($GLOBALS['_xmlrpcs_prev_ehandler']))
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{
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// the following works both with static class methods and plain object methods as error handler
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call_user_func_array($GLOBALS['_xmlrpcs_prev_ehandler'], array($errcode, $errstring, $filename, $lineno, $context));
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}
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else
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{
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$GLOBALS['_xmlrpcs_prev_ehandler']($errcode, $errstring, $filename, $lineno, $context);
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}
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}
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}
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}
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$GLOBALS['_xmlrpc_debuginfo']='';
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/**
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* Add a string to the debug info that can be later seralized by the server
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* as part of the response message.
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* Note that for best compatbility, the debug string should be encoded using
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* the $GLOBALS['xmlrpc_internalencoding'] character set.
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* @param string $m
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* @access public
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*/
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function xmlrpc_debugmsg($m)
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{
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$GLOBALS['_xmlrpc_debuginfo'] .= $m . "\n";
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}
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class xmlrpc_server
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{
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/**
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* Array defining php functions exposed as xmlrpc methods by this server
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* @access private
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*/
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var $dmap=array();
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/**
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* Defines how functions in dmap will be invoked: either using an xmlrpc msg object
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* or plain php values.
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* valid strings are 'xmlrpcvals', 'phpvals' or 'epivals'
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*/
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var $functions_parameters_type='xmlrpcvals';
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/**
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* Option used for fine-tuning the encoding the php values returned from
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* functions registered in the dispatch map when the functions_parameters_types
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* member is set to 'phpvals'
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* @see php_xmlrpc_encode for a list of values
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*/
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var $phpvals_encoding_options = array( 'auto_dates' );
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/// 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
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var $debug = 1;
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/**
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* Controls behaviour of server when invoked user function throws an exception:
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* 0 = catch it and return an 'internal error' xmlrpc response (default)
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* 1 = catch it and return an xmlrpc response with the error corresponding to the exception
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* 2 = allow the exception to float to the upper layers
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*/
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var $exception_handling = 0;
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/**
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* When set to true, it will enable HTTP compression of the response, in case
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* the client has declared its support for compression in the request.
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*/
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var $compress_response = false;
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/**
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* 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();
|
|
}
|
|
}
|
|
?>
|