/* * The Apache Software License, Version 1.1 * * * Copyright (c) 1999 The Apache Software Foundation. All rights * reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * 3. The end-user documentation included with the redistribution, * if any, must include the following acknowledgment: * "This product includes software developed by the * Apache Software Foundation (http://www.apache.org/)." * Alternately, this acknowledgment may appear in the software itself, * if and wherever such third-party acknowledgments normally appear. * * 4. The names "" and "Apache Software Foundation" must * not be used to endorse or promote products derived from this * software without prior written permission. For written * permission, please contact apache@apache.org. * * 5. Products derived from this software may not be called "Apache", * nor may "Apache" appear in their name, without prior written * permission of the Apache Software Foundation. * * THIS SOFTWARE IS PROVIDED ``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 APACHE SOFTWARE FOUNDATION OR * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * ==================================================================== * * This software consists of voluntary contributions made by many * individuals on behalf of the Apache Software Foundation and was * originally based on software copyright (c) 2001, Institute for * Data Communications Systems, . * The development of this software was partly funded by the European * Commission in the project in the ISIS Programme. * For more information on the Apache Software Foundation, please see * . */ /* * XSEC * * DSIGTransformXPath := Class that holds XPath transforms * * Author(s): Berin Lautenbach * * $Id: DSIGTransformXPath.cpp,v 1.7 2003/03/08 08:45:16 blautenb Exp $ * */ #include #include #include #include #include #include #include #include XSEC_USING_XERCES(Janitor); // -------------------------------------------------------------------------------- // Constructors and Destructors // -------------------------------------------------------------------------------- DSIGTransformXPath::DSIGTransformXPath(DSIGSignature *sig, DOMNode * node) : DSIGTransform(sig, node) { mp_exprTextNode = NULL; mp_xpathNode = NULL; mp_NSMap = NULL; m_expr = ""; } DSIGTransformXPath::DSIGTransformXPath(DSIGSignature *sig) : DSIGTransform(sig) { mp_exprTextNode = NULL; mp_xpathNode = NULL; mp_NSMap = NULL; m_expr = ""; } DSIGTransformXPath::~DSIGTransformXPath() {}; // -------------------------------------------------------------------------------- // Interface Methods // -------------------------------------------------------------------------------- transformType DSIGTransformXPath::getTransformType() { return TRANSFORM_XPATH; } void DSIGTransformXPath::appendTransformer(TXFMChain * input) { #ifdef XSEC_NO_XPATH throw XSECException(XSECException::UnsupportedFunction, "XPath transforms are not supported in this compilation of the XSEC library"); #else TXFMXPath *x; // XPath transform XSECnew(x, TXFMXPath(mp_txfmNode->getOwnerDocument())); input->appendTxfm(x); // These can throw, but the TXFMXPath is now owned by the chain, so will // be cleaned up down the calling stack. x->setNameSpace(mp_NSMap); x->evaluateExpr(mp_txfmNode, m_expr); #endif /* NO_XPATH */ } DOMElement * DSIGTransformXPath::createBlankTransform(DOMDocument * parentDoc) { safeBuffer str; const XMLCh * prefix; DOMElement *ret; DOMDocument *doc = mp_parentSignature->getParentDocument(); prefix = mp_parentSignature->getDSIGNSPrefix(); // Create the transform node makeQName(str, prefix, "Transform"); ret = doc->createElementNS(DSIGConstants::s_unicodeStrURIDSIG, str.rawXMLChBuffer()); ret->setAttribute(DSIGConstants::s_unicodeStrAlgorithm, DSIGConstants::s_unicodeStrURIXPATH); // Create the XPath element makeQName(str, prefix, "XPath"); mp_xpathNode = doc->createElementNS(DSIGConstants::s_unicodeStrURIDSIG, str.rawXMLChBuffer()); mp_exprTextNode = doc->createTextNode(MAKE_UNICODE_STRING("")); ret->appendChild(mp_xpathNode); mp_xpathNode->appendChild(mp_exprTextNode); mp_txfmNode = ret; return ret; } void DSIGTransformXPath::load(void) { // Find the XPath expression mp_xpathNode = mp_txfmNode->getFirstChild(); while (mp_xpathNode != 0 && mp_xpathNode->getNodeType() != DOMNode::ELEMENT_NODE && !strEquals(mp_xpathNode->getNodeName(), "XPath")) mp_xpathNode = mp_xpathNode->getNextSibling(); if (mp_xpathNode == 0) { throw XSECException(XSECException::ExpectedDSIGChildNotFound, "Expected Node in DSIGTransformXPath::load"); } else { // Check for attributes - in particular any namespaces mp_NSMap = mp_xpathNode->getAttributes(); // Find the text node mp_exprTextNode = findFirstChildOfType(mp_xpathNode, DOMNode::TEXT_NODE); if (mp_exprTextNode == NULL) { throw XSECException(XSECException::ExpectedDSIGChildNotFound, "Expected Text Node in beneath in DSIGTransformXPath::load"); } // Gather the text safeBuffer exprSB; gatherChildrenText(mp_xpathNode, exprSB); m_expr << (*(mp_parentSignature->getSBFormatter()) << exprSB.rawXMLChBuffer()); //m_expr << (*(mp_parentSignature->getSBFormatter()) << mp_exprTextNode->getNodeValue()); } } // -------------------------------------------------------------------------------- // XPath Transform Specific Methods // -------------------------------------------------------------------------------- void DSIGTransformXPath::setExpression(const char * expr) { mp_exprTextNode->setNodeValue(MAKE_UNICODE_STRING(expr)); m_expr.sbStrcpyIn((char *) expr); } const char * DSIGTransformXPath::getExpression(void) { return m_expr.rawCharBuffer(); } void DSIGTransformXPath::setNamespace(const char * prefix, const char * value) { safeBuffer str; str.sbStrcpyIn("xmlns:"); str.sbStrcatIn((char *) prefix); DOMElement *x; x = static_cast (mp_xpathNode); // if (x == NULL) { // // throw XSECException(XSECException::TransformError, // "Found a non ELEMENT node as the XPath node in DSIGTransformXPath"); // } x->setAttributeNS(DSIGConstants::s_unicodeStrURIXMLNS, str.sbStrToXMLCh(), MAKE_UNICODE_STRING(value)); mp_NSMap = mp_xpathNode->getAttributes(); } void DSIGTransformXPath::deleteNamespace(const char * prefix) { DOMElement *x; x = static_cast (mp_xpathNode); // if (x == NULL) { // // throw XSECException(XSECException::TransformError, // "Found a non ELEMENT node as the XPath node in DSIGTransformXPath"); // } x->removeAttributeNS(DSIGConstants::s_unicodeStrURIXMLNS, MAKE_UNICODE_STRING(prefix)); }