egroupware/phpgwapi/inc/class.xmlrpc_server.inc.php

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<?php
// by Edd Dumbill (C) 1999-2001
// <edd@usefulinc.com>
// $Id$
// License is granted to use or modify this software ("XML-RPC for PHP")
// for commercial or non-commercial use provided the copyright of the author
// is preserved in any distributed or derivative work.
// THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESSED 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 AUTHOR 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
$_xmlrpcs_listMethods_sig = array(array($xmlrpcArray, $xmlrpcString), array($xmlrpcArray));
$_xmlrpcs_listMethods_doc = 'This method lists all the methods that the XML-RPC server knows how to dispatch';
function _xmlrpcs_listMethods($server, $m)
{
global $xmlrpcerr, $xmlrpcstr, $_xmlrpcs_dmap;
$v = CreateObject('phpgwapi.xmlrpcval');
$dmap = $server->dmap;
$outAr = array();
for(reset($dmap); list($key, $val) = each($dmap); )
{
$outAr[] = CreateObject('phpgwapi.xmlrpcval',$key, 'string');
}
$dmap = $_xmlrpcs_dmap;
for(reset($dmap); list($key, $val) = each($dmap); )
{
$outAr[] = CreateObject('phpgwapi.xmlrpcval',$key, 'string');
}
$v->addArray($outAr);
return CreateObject('phpgwapi.xmlrpcresp',$v);
}
$_xmlrpcs_methodSignature_sig=array(array($xmlrpcArray, $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)
{
global $xmlrpcerr, $xmlrpcstr, $_xmlrpcs_dmap;
$methName = $m->getParam(0);
$methName = $methName->scalarval();
if (ereg("^system\.", $methName))
{
$dmap = $_xmlrpcs_dmap;
$sysCall = 1;
}
else
{
$dmap = $server->dmap;
$sysCall = 0;
}
// print "<!-- ${methName} -->\n";
if (isset($dmap[$methName]))
{
if ($dmap[$methName]['signature'])
{
$sigs = array();
$thesigs=$dmap[$methName]['signature'];
for($i=0; $i<sizeof($thesigs); $i++)
{
$cursig = array();
$inSig = $thesigs[$i];
for($j=0; $j<sizeof($inSig); $j++)
{
$cursig[] = CreateObject('phpgwapi.xmlrpcval',$inSig[$j], 'string');
}
$sigs[] = CreateObject('phpgwapi.xmlrpcval',$cursig, 'array');
}
$r = CreateObject('phpgwapi.xmlrpcresp',CreateObject('phpgwapi.xmlrpcval',$sigs, 'array'));
}
else
{
$r = CreateObject('phpgwapi.xmlrpcresp', CreateObject('phpgwapi.xmlrpcval','undef', 'string'));
}
}
else
{
$r = CreateObject('phpgwapi.xmlrpcresp',0,$xmlrpcerr['introspect_unknown'],$xmlrpcstr['introspect_unknown']);
}
return $r;
}
$_xmlrpcs_methodHelp_sig = array(array($xmlrpcString, $xmlrpcString));
$_xmlrpcs_methodHelp_doc = 'Returns help text if defined for the method passed, otherwise returns an empty string';
function _xmlrpcs_methodHelp($server, $m)
{
global $xmlrpcerr, $xmlrpcstr, $_xmlrpcs_dmap;
$methName = $m->getParam(0);
$methName = $methName->scalarval();
if (ereg("^system\.", $methName))
{
$dmap = $_xmlrpcs_dmap; $sysCall=1;
}
else
{
$dmap = $server->dmap; $sysCall=0;
}
// print "<!-- ${methName} -->\n";
if (isset($dmap[$methName]))
{
if ($dmap[$methName]['docstring'])
{
$r = CreateObject('phpgwapi.xmlrpcresp', CreateObject('phpgwapi.xmlrpcval',$dmap[$methName]['docstring']),'string');
}
else
{
$r = CreateObject('phpgwapi.xmlrpcresp', CreateObject('phpgwapi.xmlrpcval'), 'string');
}
}
else
{
$r = CreateObject('phpgwapi.xmlrpcresp',0,$xmlrpcerr['introspect_unknown'],$xmlrpcstr['introspect_unknown']);
}
return $r;
}
$_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
)
);
$_xmlrpc_debuginfo = '';
function xmlrpc_debugmsg($m)
{
global $_xmlrpc_debuginfo;
$_xmlrpc_debuginfo = $_xmlrpc_debuginfo . $m . "\n";
}
/* BEGIN server class */
class xmlrpc_server
{
var $dmap = array();
function xmlrpc_server($dispMap, $serviceNow=1)
{
global $HTTP_RAW_POST_DATA;
// dispMap is a despatch 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
$this->dmap = $dispMap;
if ($serviceNow)
{
$this->service();
}
}
function serializeDebug()
{
global $_xmlrpc_debuginfo;
if ($_xmlrpc_debuginfo != '')
{
return "<!-- DEBUG INFO:\n\n" . $_xmlrpc_debuginfo . "\n-->\n";
}
else
{
return '';
}
}
function service()
{
$r = $this->parseRequest();
$payload = "<?xml version=\"1.0\"?>\n" . $this->serializeDebug() . $r->serialize();
Header("Content-type: text/xml\r\nContent-length: " . strlen($payload));
print $payload;
}
function verifySignature($in, $sig)
{
for($i=0; $i<sizeof($sig); $i++)
{
// check each possible signature in turn
$cursig = $sig[$i];
if (sizeof($cursig) == $in->getNumParams()+1)
{
$itsOK = 1;
for($n=0; $n<$in->getNumParams(); $n++)
{
$p = $in->getParam($n);
// print "<!-- $p -->\n";
if ($p->kindOf() == 'scalar')
{
$pt = $p->scalartyp();
}
else
{
$pt = $p->kindOf();
}
// $n+1 as first type of sig is return type
if ($pt != $cursig[$n+1])
{
$itsOK = 0;
$pno = $n+1;
$wanted = $cursig[$n+1];
$got = $pt;
break;
}
}
if ($itsOK)
{
return array(1);
}
}
}
return array(0, "Wanted ${wanted}, got ${got} at param ${pno})");
}
function parseRequest($data='')
{
global $_xh,$HTTP_RAW_POST_DATA;
global $xmlrpcerr, $xmlrpcstr, $xmlrpcerrxml, $xmlrpc_defencoding, $_xmlrpcs_dmap;
if ($data == '')
{
$data = $HTTP_RAW_POST_DATA;
}
$parser = xml_parser_create($xmlrpc_defencoding);
$_xh[$parser] = array();
$_xh[$parser]['st'] = '';
$_xh[$parser]['cm'] = 0;
$_xh[$parser]['isf'] = 0;
$_xh[$parser]['params'] = array();
$_xh[$parser]['method'] = '';
// decompose incoming XML into request structure
xml_parser_set_option($parser, XML_OPTION_CASE_FOLDING, true);
xml_set_element_handler($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 = CreateObject('phpgwapi.xmlrpcresp',0,
$xmlrpcerrxml + xml_get_error_code($parser),
sprintf('XML error: %s at line %d',
xml_error_string(xml_get_error_code($parser)),
xml_get_current_line_number($parser))
);
xml_parser_free($parser);
}
else
{
xml_parser_free($parser);
$m = CreateObject('phpgwapi.xmlrpcmsg',$_xh[$parser]['method']);
// now add parameters in
for($i=0; $i<sizeof($_xh[$parser]['params']); $i++)
{
//print "<!-- " . $_xh[$parser]['params'][$i]. "-->\n";
$plist .= "$i - " . $_xh[$parser]['params'][$i]. " \n";
$code = '$m->addParam(' . $_xh[$parser]['params'][$i] . ');';
$code = ereg_replace(',,',",'',",$code);
eval($code);
}
// uncomment this to really see what the server's getting!
// xmlrpc_debugmsg($plist);
// now to deal with the method
$methName = $_xh[$parser]['method'];
if (ereg("^system\.", $methName))
{
$dmap = $_xmlrpcs_dmap; $sysCall=1;
}
else
{
$dmap = $this->dmap; $sysCall=0;
}
if (isset($dmap[$methName]['function']))
{
// dispatch if exists
if (isset($dmap[$methName]['signature']))
{
$sr = $this->verifySignature($m, $dmap[$methName]['signature'] );
}
if ( (!isset($dmap[$methName]['signature'])) || $sr[0])
{
// if no signature or correct signature
if ($sysCall)
{
$code = '$r=' . $dmap[$methName]['function'] . '($this, $m);';
$code = ereg_replace(',,',",'',",$code);
eval($code);
}
else
{
$code = '$r=' . $dmap[$methName]['function'] . '($m);';
$code = ereg_replace(',,',",'',",$code);
eval($code);
}
}
else
{
$r= CreateObject('phpgwapi.xmlrpcresp',CreateObject('phpgwapi.xmlrpcval'),$xmlrpcerr['incorrect_params'],$xmlrpcstr['incorrect_params'].': ' . $sr[1]
);
}
}
else
{
// else prepare error response
$r= CreateObject('phpgwapi.xmlrpcresp',CreateObject('phpgwapi.xmlrpcval'),$xmlrpcerr['unknown_method'],$xmlrpcstr['unknown_method']);
}
}
return $r;
}
function echoInput()
{
global $HTTP_RAW_POST_DATA;
// a debugging routine: just echos back the input
// packet as a string value
$r = CreateObject('phpgwapi.xmlrpcresp',CreateObject('phpgwapi.xmlrpcval',"'Aha said I: '" . $HTTP_RAW_POST_DATA,'string'));
echo $r->serialize();
}
}
?>