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<?php
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/**
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* soap-server-wsse.php
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*
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* Copyright (c) 2007, Robert Richards <[email protected]>.
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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 copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* * Neither the name of Robert Richards nor the names of his
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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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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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* @author Robert Richards <[email protected]>
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* @copyright 2007 Robert Richards <[email protected]>
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* @license http://www.opensource.org/licenses/bsd-license.php BSD License
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* @version 1.0.0
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*/
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require('xmlseclibs.php');
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class WSSESoapServer {
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const WSSENS = 'http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd';
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const WSSENS_2003 = 'http://schemas.xmlsoap.org/ws/2003/06/secext';
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const WSUNS = 'http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd';
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const WSSEPFX = 'wsse';
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const WSUPFX = 'wsu';
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private $soapNS, $soapPFX;
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private $soapDoc = NULL;
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private $envelope = NULL;
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private $SOAPXPath = NULL;
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private $secNode = NULL;
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public $signAllHeaders = FALSE;
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private function locateSecurityHeader($setActor=NULL) {
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$wsNamespace = NULL;
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if ($this->secNode == NULL) {
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$secnode = NULL;
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$headers = $this->SOAPXPath->query('//wssoap:Envelope/wssoap:Header');
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if ($header = $headers->item(0)) {
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$secnodes = $this->SOAPXPath->query('./*[local-name()="Security"]', $header);
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foreach ($secnodes AS $node) {
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$nsURI = $node->namespaceURI;
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if (($nsURI == self::WSSENS) || ($nsURI == self::WSSENS_2003)) {
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$actor = $node->getAttributeNS($this->soapNS, 'actor');
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if (empty($actor) || ($actor == $setActor)) {
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$secnode = $node;
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$wsNamespace = $nsURI;
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break;
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}
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}
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}
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}
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$this->secNode = $secnode;
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}
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return $wsNamespace;
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}
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public function __construct($doc)
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{
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$this->soapDoc = $doc;
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$this->envelope = $doc->documentElement;
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$this->soapNS = $this->envelope->namespaceURI;
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$this->soapPFX = $this->envelope->prefix;
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$this->SOAPXPath = new DOMXPath($doc);
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$this->SOAPXPath->registerNamespace('wssoap', $this->soapNS);
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$this->SOAPXPath->registerNamespace('wswsu', self::WSUNS);
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$wsNamespace = $this->locateSecurityHeader();
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if (!empty($wsNamespace)) {
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$this->SOAPXPath->registerNamespace('wswsse', $wsNamespace);
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}
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}
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public function processSignature($refNode)
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{
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$objXMLSecDSig = new XMLSecurityDSig();
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$objXMLSecDSig->idKeys[] = 'wswsu:Id';
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$objXMLSecDSig->idNS['wswsu'] = self::WSUNS;
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$objXMLSecDSig->sigNode = $refNode;
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/* Canonicalize the signed info */
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$objXMLSecDSig->canonicalizeSignedInfo();
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$retVal = $objXMLSecDSig->validateReference();
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if (! $retVal) {
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throw new Exception("Validation Failed");
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}
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$key = NULL;
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$objKey = $objXMLSecDSig->locateKey();
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if ($objKey) {
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if ($objKeyInfo = XMLSecEnc::staticLocateKeyInfo($objKey, $refNode)) {
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/* Handle any additional key processing such as encrypted keys here */
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}
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}
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if (empty($objKey)) {
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throw new Exception("Error loading key to handle Signature");
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}
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do {
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if (empty($objKey->key)) {
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$this->SOAPXPath->registerNamespace('xmlsecdsig', XMLSecurityDSig::XMLDSIGNS);
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$query = "./xmlsecdsig:KeyInfo/wswsse:SecurityTokenReference/wswsse:Reference";
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$nodeset = $this->SOAPXPath->query($query, $refNode);
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if ($encmeth = $nodeset->item(0)) {
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if ($uri = $encmeth->getAttribute("URI")) {
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$arUrl = parse_url($uri);
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if (empty($arUrl['path']) && ($identifier = $arUrl['fragment'])) {
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$query = '//wswsse:BinarySecurityToken[@wswsu:Id="'.$identifier.'"]';
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$nodeset = $this->SOAPXPath->query($query);
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if ($encmeth = $nodeset->item(0)) {
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$x509cert = $encmeth->textContent;
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$x509cert = str_replace(array("\r", "\n"), "", $x509cert);
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$x509cert = "-----BEGIN CERTIFICATE-----\n".chunk_split($x509cert, 64, "\n")."-----END CERTIFICATE-----\n";
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$objKey->loadKey($x509cert);
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break;
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}
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}
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}
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}
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throw new Exception("Error loading key to handle Signature");
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}
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} while(0);
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if (! $objXMLSecDSig->verify($objKey)) {
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throw new Exception("Unable to validate Signature");
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}
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return true;
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}
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public function process()
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{
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if (empty($this->secNode)) {
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return;
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}
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$node = $this->secNode->firstChild;
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while ($node) {
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$nextNode = $node->nextSibling;
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switch ($node->localName) {
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case "Signature":
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if ($this->processSignature($node)) {
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if ($node->parentNode) {
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$node->parentNode->removeChild($node);
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}
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} else {
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/* throw fault */
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return false;
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}
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}
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$node = $nextNode;
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}
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$this->secNode->parentNode->removeChild($this->secNode);
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$this->secNode = NULL;
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return true;
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}
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public function saveXML()
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{
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return $this->soapDoc->saveXML();
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}
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public function save($file)
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{
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return $this->soapDoc->save($file);
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}
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}
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chamilo /
chamilo-lms
This check looks for the bodies of
ifstatements that have no statements or where all statements have been commented out. This may be the result of changes for debugging or the code may simply be obsolete.These
ifbodies can be removed. If you have an empty if but statements in theelsebranch, consider inverting the condition.could be turned into
This is much more concise to read.