613 Zeilen
20 KiB
PHP
613 Zeilen
20 KiB
PHP
<?php
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/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
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/**
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* Server commands for our PHP implementation of the XML-RPC protocol
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*
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* This is a PEAR-ified version of Useful inc's XML-RPC for PHP.
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* It has support for HTTP transport, proxies and authentication.
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*
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* PHP versions 4 and 5
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*
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* LICENSE: License is granted to use or modify this software
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* ("XML-RPC for PHP") for commercial or non-commercial use provided the
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* copyright of the author is preserved in any distributed or derivative work.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESSED OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* @category Web Services
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* @package XML_RPC
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* @author Edd Dumbill <edd@usefulinc.com>
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* @author Stig Bakken <stig@php.net>
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* @author Martin Jansen <mj@php.net>
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* @author Daniel Convissor <danielc@php.net>
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* @copyright 1999-2001 Edd Dumbill, 2001-2005 The PHP Group
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* @version CVS: $Id$
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* @link http://pear.php.net/package/XML_RPC
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*/
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/**
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* Pull in the XML_RPC class
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*/
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require_once 'XML/RPC.php';
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/**
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* signature for system.listMethods: return = array,
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* parameters = a string or nothing
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* @global array $GLOBALS['XML_RPC_Server_listMethods_sig']
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*/
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$GLOBALS['XML_RPC_Server_listMethods_sig'] = array(
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array($GLOBALS['XML_RPC_Array'],
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$GLOBALS['XML_RPC_String']
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),
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array($GLOBALS['XML_RPC_Array'])
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);
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/**
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* docstring for system.listMethods
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* @global string $GLOBALS['XML_RPC_Server_listMethods_doc']
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*/
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$GLOBALS['XML_RPC_Server_listMethods_doc'] = 'This method lists all the'
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. ' methods that the XML-RPC server knows how to dispatch';
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/**
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* signature for system.methodSignature: return = array,
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* parameters = string
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* @global array $GLOBALS['XML_RPC_Server_methodSignature_sig']
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*/
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$GLOBALS['XML_RPC_Server_methodSignature_sig'] = array(
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array($GLOBALS['XML_RPC_Array'],
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$GLOBALS['XML_RPC_String']
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)
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);
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/**
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* docstring for system.methodSignature
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* @global string $GLOBALS['XML_RPC_Server_methodSignature_doc']
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*/
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$GLOBALS['XML_RPC_Server_methodSignature_doc'] = 'Returns an array of known'
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. ' signatures (an array of arrays) for the method name passed. If'
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. ' no signatures are known, returns a none-array (test for type !='
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. ' array to detect missing signature)';
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/**
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* signature for system.methodHelp: return = string,
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* parameters = string
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* @global array $GLOBALS['XML_RPC_Server_methodHelp_sig']
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*/
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$GLOBALS['XML_RPC_Server_methodHelp_sig'] = array(
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array($GLOBALS['XML_RPC_String'],
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$GLOBALS['XML_RPC_String']
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)
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);
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/**
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* docstring for methodHelp
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* @global string $GLOBALS['XML_RPC_Server_methodHelp_doc']
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*/
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$GLOBALS['XML_RPC_Server_methodHelp_doc'] = 'Returns help text if defined'
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. ' for the method passed, otherwise returns an empty string';
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/**
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* dispatch map for the automatically declared XML-RPC methods.
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* @global array $GLOBALS['XML_RPC_Server_dmap']
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*/
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$GLOBALS['XML_RPC_Server_dmap'] = array(
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'system.listMethods' => array(
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'function' => 'XML_RPC_Server_listMethods',
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'signature' => $GLOBALS['XML_RPC_Server_listMethods_sig'],
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'docstring' => $GLOBALS['XML_RPC_Server_listMethods_doc']
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),
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'system.methodHelp' => array(
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'function' => 'XML_RPC_Server_methodHelp',
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'signature' => $GLOBALS['XML_RPC_Server_methodHelp_sig'],
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'docstring' => $GLOBALS['XML_RPC_Server_methodHelp_doc']
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),
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'system.methodSignature' => array(
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'function' => 'XML_RPC_Server_methodSignature',
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'signature' => $GLOBALS['XML_RPC_Server_methodSignature_sig'],
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'docstring' => $GLOBALS['XML_RPC_Server_methodSignature_doc']
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)
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);
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/**
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* @global string $GLOBALS['XML_RPC_Server_debuginfo']
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*/
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$GLOBALS['XML_RPC_Server_debuginfo'] = '';
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/**
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* Lists all the methods that the XML-RPC server knows how to dispatch
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*
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* @return object a new XML_RPC_Response object
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*/
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function XML_RPC_Server_listMethods($server, $m)
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{
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global $XML_RPC_err, $XML_RPC_str, $XML_RPC_Server_dmap;
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$v = new XML_RPC_Value();
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$outAr = array();
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foreach ($server->dmap as $key => $val) {
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$outAr[] = new XML_RPC_Value($key, 'string');
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}
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foreach ($XML_RPC_Server_dmap as $key => $val) {
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$outAr[] = new XML_RPC_Value($key, 'string');
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}
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$v->addArray($outAr);
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return new XML_RPC_Response($v);
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}
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/**
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* Returns an array of known signatures (an array of arrays)
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* for the given method
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*
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* If no signatures are known, returns a none-array
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* (test for type != array to detect missing signature)
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*
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* @return object a new XML_RPC_Response object
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*/
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function XML_RPC_Server_methodSignature($server, $m)
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{
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global $XML_RPC_err, $XML_RPC_str, $XML_RPC_Server_dmap;
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$methName = $m->getParam(0);
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$methName = $methName->scalarval();
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if (strpos($methName, 'system.') === 0) {
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$dmap = $XML_RPC_Server_dmap;
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$sysCall = 1;
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} else {
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$dmap = $server->dmap;
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$sysCall = 0;
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}
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// print "<!-- ${methName} -->\n";
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if (isset($dmap[$methName])) {
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if ($dmap[$methName]['signature']) {
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$sigs = array();
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$thesigs = $dmap[$methName]['signature'];
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for ($i = 0; $i < sizeof($thesigs); $i++) {
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$cursig = array();
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$inSig = $thesigs[$i];
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for ($j = 0; $j < sizeof($inSig); $j++) {
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$cursig[] = new XML_RPC_Value($inSig[$j], 'string');
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}
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$sigs[] = new XML_RPC_Value($cursig, 'array');
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}
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$r = new XML_RPC_Response(new XML_RPC_Value($sigs, 'array'));
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} else {
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$r = new XML_RPC_Response(new XML_RPC_Value('undef', 'string'));
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}
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} else {
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$r = new XML_RPC_Response(0, $XML_RPC_err['introspect_unknown'],
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$XML_RPC_str['introspect_unknown']);
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}
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return $r;
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}
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/**
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* Returns help text if defined for the method passed, otherwise returns
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* an empty string
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*
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* @return object a new XML_RPC_Response object
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*/
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function XML_RPC_Server_methodHelp($server, $m)
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{
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global $XML_RPC_err, $XML_RPC_str, $XML_RPC_Server_dmap;
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$methName = $m->getParam(0);
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$methName = $methName->scalarval();
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if (strpos($methName, 'system.') === 0) {
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$dmap = $XML_RPC_Server_dmap;
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$sysCall = 1;
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} else {
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$dmap = $server->dmap;
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$sysCall = 0;
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}
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// print "<!-- ${methName} -->\n";
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if (isset($dmap[$methName])) {
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if ($dmap[$methName]['docstring']) {
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$r = new XML_RPC_Response(new XML_RPC_Value($dmap[$methName]['docstring']),
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'string');
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} else {
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$r = new XML_RPC_Response(new XML_RPC_Value('', 'string'));
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}
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} else {
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$r = new XML_RPC_Response(0, $XML_RPC_err['introspect_unknown'],
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$XML_RPC_str['introspect_unknown']);
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}
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return $r;
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}
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/**
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* @return void
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*/
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function XML_RPC_Server_debugmsg($m)
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{
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global $XML_RPC_Server_debuginfo;
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$XML_RPC_Server_debuginfo = $XML_RPC_Server_debuginfo . $m . "\n";
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}
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/**
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* A server for receiving and replying to XML RPC requests
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*
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* <code>
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* $server = new XML_RPC_Server(
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* array(
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* 'isan8' =>
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* array(
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* 'function' => 'is_8',
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* 'signature' =>
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* array(
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* array('boolean', 'int'),
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* array('boolean', 'int', 'boolean'),
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* array('boolean', 'string'),
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* array('boolean', 'string', 'boolean'),
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* ),
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* 'docstring' => 'Is the value an 8?'
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* ),
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* ),
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* 1,
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* 0
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* );
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* </code>
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*
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* @category Web Services
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* @package XML_RPC
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* @author Edd Dumbill <edd@usefulinc.com>
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* @author Stig Bakken <stig@php.net>
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* @author Martin Jansen <mj@php.net>
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* @author Daniel Convissor <danielc@php.net>
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* @copyright 1999-2001 Edd Dumbill, 2001-2005 The PHP Group
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* @version Release: 1.3.1
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* @link http://pear.php.net/package/XML_RPC
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*/
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class XML_RPC_Server
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{
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/**
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* The dispatch map, listing the methods this server provides.
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* @var array
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*/
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var $dmap = array();
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/**
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* The present response's encoding
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* @var string
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* @see XML_RPC_Message::getEncoding()
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*/
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var $encoding = '';
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/**
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* Debug mode (0 = off, 1 = on)
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* @var integer
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*/
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var $debug = 0;
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/**
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* The response's HTTP headers
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* @var string
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*/
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var $server_headers = '';
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/**
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* The response's XML payload
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* @var string
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*/
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var $server_payload = '';
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/**
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* Constructor for the XML_RPC_Server class
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*
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* @param array $dispMap the dispatch map. An associative array
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* explaining each function. The keys of the main
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* array are the procedure names used by the
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* clients. The value is another associative array
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* that contains up to three elements:
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* + The 'function' element's value is the name
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* of the function or method that gets called.
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* To define a class' method: 'class::method'.
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* + The 'signature' element (optional) is an
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* array describing the return values and
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* parameters
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* + The 'docstring' element (optional) is a
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* string describing what the method does
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* @param int $serviceNow should the HTTP response be sent now?
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* (1 = yes, 0 = no)
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* @param int $debug should debug output be displayed?
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* (1 = yes, 0 = no)
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*
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* @return void
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*/
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function XML_RPC_Server($dispMap, $serviceNow = 1, $debug = 0)
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{
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global $HTTP_RAW_POST_DATA;
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if ($debug) {
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$this->debug = 1;
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} else {
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$this->debug = 0;
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}
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$this->dmap = $dispMap;
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if ($serviceNow) {
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$this->service();
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} else {
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$this->createServerPayload();
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$this->createServerHeaders();
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}
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}
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/**
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* @return string the debug information if debug debug mode is on
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*/
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function serializeDebug()
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{
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global $XML_RPC_Server_debuginfo, $HTTP_RAW_POST_DATA;
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if ($this->debug) {
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XML_RPC_Server_debugmsg('vvv POST DATA RECEIVED BY SERVER vvv' . "\n"
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. $HTTP_RAW_POST_DATA
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. "\n" . '^^^ END POST DATA ^^^');
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}
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if ($XML_RPC_Server_debuginfo != '') {
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return "<!-- PEAR XML_RPC SERVER DEBUG INFO:\n\n"
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. preg_replace('/-(?=-)/', '- ', $XML_RPC_Server_debuginfo)
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. "-->\n";
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} else {
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return '';
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}
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}
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/**
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* Sends the response
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*
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* The encoding and content-type are determined by
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* XML_RPC_Message::getEncoding()
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*
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* @return void
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*
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* @uses XML_RPC_Server::createServerPayload(),
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* XML_RPC_Server::createServerHeaders()
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*/
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function service()
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{
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$this->createServerPayload();
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$this->createServerHeaders();
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header($this->server_headers);
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print $this->server_payload;
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}
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/**
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* Generates the payload and puts it in the $server_payload property
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*
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* @return void
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*
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* @uses XML_RPC_Server::parseRequest(), XML_RPC_Server::$encoding,
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* XML_RPC_Response::serialize(), XML_RPC_Server::serializeDebug()
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*/
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function createServerPayload()
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{
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$r = $this->parseRequest();
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$this->server_payload = '<?xml version="1.0" encoding="'
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. $this->encoding . '"?>' . "\n"
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. $this->serializeDebug()
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. $r->serialize();
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}
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/**
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* Determines the HTTP headers and puts them in the $server_headers
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* property
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*
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* @return boolean TRUE if okay, FALSE if $server_payload isn't set.
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*
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* @uses XML_RPC_Server::createServerPayload(),
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* XML_RPC_Server::$server_headers
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*/
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function createServerHeaders()
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{
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if (!$this->server_payload) {
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return false;
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}
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$this->server_headers = 'Content-Length: '
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. strlen($this->server_payload) . "\r\n"
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. 'Content-Type: text/xml;'
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. ' charset=' . $this->encoding;
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return true;
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}
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/**
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* @return array
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*/
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function verifySignature($in, $sig)
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{
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for ($i = 0; $i < sizeof($sig); $i++) {
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// check each possible signature in turn
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$cursig = $sig[$i];
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if (sizeof($cursig) == $in->getNumParams() + 1) {
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$itsOK = 1;
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for ($n = 0; $n < $in->getNumParams(); $n++) {
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$p = $in->getParam($n);
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// print "<!-- $p -->\n";
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if ($p->kindOf() == 'scalar') {
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$pt = $p->scalartyp();
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} else {
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$pt = $p->kindOf();
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}
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// $n+1 as first type of sig is return type
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if ($pt != $cursig[$n+1]) {
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$itsOK = 0;
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$pno = $n+1;
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$wanted = $cursig[$n+1];
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$got = $pt;
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break;
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}
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}
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if ($itsOK) {
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return array(1);
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}
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}
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}
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if (isset($wanted)) {
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return array(0, "Wanted ${wanted}, got ${got} at param ${pno}");
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} else {
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$allowed = array();
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foreach ($sig as $val) {
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end($val);
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$allowed[] = key($val);
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}
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$allowed = array_unique($allowed);
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$last = count($allowed) - 1;
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if ($last > 0) {
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$allowed[$last] = 'or ' . $allowed[$last];
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}
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return array(0,
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'Signature permits ' . implode(', ', $allowed)
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. ' parameters but the request had '
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. $in->getNumParams());
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}
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}
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/**
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* @return object a new XML_RPC_Response object
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*
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* @uses XML_RPC_Message::getEncoding(), XML_RPC_Server::$encoding
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*/
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function parseRequest($data = '')
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{
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global $XML_RPC_xh, $HTTP_RAW_POST_DATA,
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$XML_RPC_err, $XML_RPC_str, $XML_RPC_errxml,
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$XML_RPC_defencoding, $XML_RPC_Server_dmap;
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if ($data == '') {
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$data = $HTTP_RAW_POST_DATA;
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}
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$this->encoding = XML_RPC_Message::getEncoding($data);
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$parser_resource = xml_parser_create($this->encoding);
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$parser = (int) $parser_resource;
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$XML_RPC_xh[$parser] = array();
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$XML_RPC_xh[$parser]['st'] = '';
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$XML_RPC_xh[$parser]['cm'] = 0;
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$XML_RPC_xh[$parser]['isf'] = 0;
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$XML_RPC_xh[$parser]['params'] = array();
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$XML_RPC_xh[$parser]['method'] = '';
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$plist = '';
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// decompose incoming XML into request structure
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xml_parser_set_option($parser_resource, XML_OPTION_CASE_FOLDING, true);
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xml_set_element_handler($parser_resource, 'XML_RPC_se', 'XML_RPC_ee');
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xml_set_character_data_handler($parser_resource, 'XML_RPC_cd');
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if (!xml_parse($parser_resource, $data, 1)) {
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// return XML error as a faultCode
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$r = new XML_RPC_Response(0,
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$XML_RPC_errxml+xml_get_error_code($parser_resource),
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sprintf('XML error: %s at line %d',
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xml_error_string(xml_get_error_code($parser_resource)),
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|
xml_get_current_line_number($parser_resource)));
|
|
xml_parser_free($parser_resource);
|
|
} else {
|
|
xml_parser_free($parser_resource);
|
|
$m = new XML_RPC_Message($XML_RPC_xh[$parser]['method']);
|
|
// now add parameters in
|
|
for ($i = 0; $i < sizeof($XML_RPC_xh[$parser]['params']); $i++) {
|
|
// print '<!-- ' . $XML_RPC_xh[$parser]['params'][$i]. "-->\n";
|
|
$plist .= "$i - " . $XML_RPC_xh[$parser]['params'][$i] . " \n";
|
|
eval('$m->addParam(' . $XML_RPC_xh[$parser]['params'][$i] . ');');
|
|
}
|
|
XML_RPC_Server_debugmsg($plist);
|
|
|
|
// now to deal with the method
|
|
$methName = $XML_RPC_xh[$parser]['method'];
|
|
if (strpos($methName, 'system.') === 0) {
|
|
$dmap = $XML_RPC_Server_dmap;
|
|
$sysCall = 1;
|
|
} else {
|
|
$dmap = $this->dmap;
|
|
$sysCall = 0;
|
|
}
|
|
|
|
if (isset($dmap[$methName]['function'])
|
|
&& is_string($dmap[$methName]['function'])
|
|
&& strpos($dmap[$methName]['function'], '::') !== false)
|
|
{
|
|
$dmap[$methName]['function'] =
|
|
explode('::', $dmap[$methName]['function']);
|
|
}
|
|
|
|
if (isset($dmap[$methName]['function'])
|
|
&& is_callable($dmap[$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) {
|
|
$r = call_user_func($dmap[$methName]['function'], $this, $m);
|
|
} else {
|
|
$r = call_user_func($dmap[$methName]['function'], $m);
|
|
}
|
|
if (!is_a($r, 'XML_RPC_Response')) {
|
|
$r = new XML_RPC_Response(0, $XML_RPC_err['not_response_object'],
|
|
$XML_RPC_str['not_response_object']);
|
|
}
|
|
} else {
|
|
$r = new XML_RPC_Response(0, $XML_RPC_err['incorrect_params'],
|
|
$XML_RPC_str['incorrect_params']
|
|
. ': ' . $sr[1]);
|
|
}
|
|
} else {
|
|
// else prepare error response
|
|
$r = new XML_RPC_Response(0, $XML_RPC_err['unknown_method'],
|
|
$XML_RPC_str['unknown_method']);
|
|
}
|
|
}
|
|
return $r;
|
|
}
|
|
|
|
/**
|
|
* Echos back the input packet as a string value
|
|
*
|
|
* @return void
|
|
*
|
|
* Useful for debugging.
|
|
*/
|
|
function echoInput()
|
|
{
|
|
global $HTTP_RAW_POST_DATA;
|
|
|
|
$r = new XML_RPC_Response(0);
|
|
$r->xv = new XML_RPC_Value("'Aha said I: '" . $HTTP_RAW_POST_DATA, 'string');
|
|
print $r->serialize();
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Local variables:
|
|
* tab-width: 4
|
|
* c-basic-offset: 4
|
|
* c-hanging-comment-ender-p: nil
|
|
* End:
|
|
*/
|
|
|
|
?>
|