| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| /* |
| * XSEC |
| * |
| * DSIGTransformXPath := Class that holds XPath transforms |
| * |
| * $Id$ |
| * |
| */ |
| |
| |
| #include <xsec/dsig/DSIGTransformXPath.hpp> |
| #include <xsec/transformers/TXFMXPath.hpp> |
| #include <xsec/framework/XSECException.hpp> |
| #include <xsec/transformers/TXFMC14n.hpp> |
| #include <xsec/transformers/TXFMChain.hpp> |
| #include <xsec/framework/XSECError.hpp> |
| #include <xsec/framework/XSECEnv.hpp> |
| #include <xsec/dsig/DSIGSignature.hpp> |
| |
| #include <xercesc/util/Janitor.hpp> |
| |
| XERCES_CPP_NAMESPACE_USE |
| |
| // -------------------------------------------------------------------------------- |
| // Constructors and Destructors |
| // -------------------------------------------------------------------------------- |
| |
| DSIGTransformXPath::DSIGTransformXPath(const XSECEnv * env, DOMNode * node) : |
| DSIGTransform(env, node) { |
| |
| mp_exprTextNode = NULL; |
| mp_xpathNode = NULL; |
| mp_NSMap = NULL; |
| m_expr = ""; |
| |
| } |
| |
| |
| DSIGTransformXPath::DSIGTransformXPath(const XSECEnv * env) : |
| DSIGTransform(env) { |
| |
| mp_exprTextNode = NULL; |
| mp_xpathNode = NULL; |
| mp_NSMap = NULL; |
| m_expr = ""; |
| } |
| |
| DSIGTransformXPath::~DSIGTransformXPath() {}; |
| |
| // -------------------------------------------------------------------------------- |
| // Interface Methods |
| // -------------------------------------------------------------------------------- |
| |
| transformType DSIGTransformXPath::getTransformType() const { |
| |
| return TRANSFORM_XPATH; |
| |
| } |
| |
| void DSIGTransformXPath::appendTransformer(TXFMChain * input) { |
| |
| #ifndef XSEC_HAVE_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 /* XSEC_HAVE_XPATH */ |
| |
| } |
| |
| DOMElement * DSIGTransformXPath::createBlankTransform(DOMDocument * parentDoc) { |
| |
| safeBuffer str; |
| const XMLCh * prefix; |
| DOMElement *ret; |
| DOMDocument *doc = mp_env->getParentDocument(); |
| |
| prefix = mp_env->getDSIGNSPrefix(); |
| |
| // Create the transform node |
| makeQName(str, prefix, "Transform"); |
| ret = doc->createElementNS(DSIGConstants::s_unicodeStrURIDSIG, str.rawXMLChBuffer()); |
| ret->setAttributeNS(NULL,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 <XPath> 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 <XPath> in DSIGTransformXPath::load"); |
| } |
| |
| // Gather the text |
| safeBuffer exprSB; |
| |
| gatherChildrenText(mp_xpathNode, exprSB); |
| |
| m_expr << (*(mp_env->getSBFormatter()) << exprSB.rawXMLChBuffer()); |
| |
| //m_expr << (*(mp_env->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 <DOMElement *> (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 <DOMElement *> (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)); |
| |
| } |
| |