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/**
* 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
*
* TXFMXPath := Class that performs XPath transforms
*
* $Id: TXFMXPathFilter.hpp 1125514 2011-05-20 19:08:33Z scantor $
*
*/
#if !defined (TXFMXPATHFILTER_HEADER)
#define TXFMXPATHFILTER_HEADER
#include <xsec/transformers/TXFMBase.hpp>
#include <xsec/utils/XSECXPathNodeList.hpp>
#include <xsec/dsig/DSIGTransformXPathFilter.hpp>
#include <xsec/dsig/DSIGConstants.hpp>
// Xerces
XSEC_DECLARE_XERCES_CLASS(DOMNode);
XSEC_DECLARE_XERCES_CLASS(DOMNamedNodeMap);
class TXFMXPathFilterExpr;
class XSECSafeBufferFormatter;
struct filterSetHolder {
XSECXPathNodeList * lst;
xpathFilterType type;
XERCES_CPP_NAMESPACE_QUALIFIER DOMNode
* ancestorInScope;
};
#ifndef XSEC_NO_XPATH
/**
* \brief Transformer to handle XPath transforms
* @ingroup internal
*/
class DSIG_EXPORT TXFMXPathFilter : public TXFMBase {
public:
TXFMXPathFilter(XERCES_CPP_NAMESPACE_QUALIFIER DOMDocument *doc);
~TXFMXPathFilter();
// Methods to set the inputs
void setInput(TXFMBase *newInput);
// Methods to get tranform output type and input requirement
virtual TXFMBase::ioType getInputType(void);
virtual TXFMBase::ioType getOutputType(void);
virtual TXFMBase::nodeType getNodeType(void);
// XPathFilter unique
void evaluateExprs(DSIGTransformXPathFilter::exprVectorType * exprs);
XSECXPathNodeList * evaluateSingleExpr(DSIGXPathFilterExpr *expr);
// Methods to get output data
virtual unsigned int readBytes(XMLByte * const toFill, const unsigned int maxToFill);
virtual XERCES_CPP_NAMESPACE_QUALIFIER DOMDocument *getDocument();
virtual XERCES_CPP_NAMESPACE_QUALIFIER DOMNode *getFragmentNode();
virtual const XMLCh * getFragmentId();
virtual XSECXPathNodeList & getXPathNodeList();
private:
typedef std::vector<filterSetHolder *> lstsVectorType;
TXFMXPathFilter();
void walkDocument(XERCES_CPP_NAMESPACE_QUALIFIER DOMNode * n);
bool checkNodeInScope(XERCES_CPP_NAMESPACE_QUALIFIER DOMNode * n);
bool checkNodeInInput(XERCES_CPP_NAMESPACE_QUALIFIER DOMNode * n,
XERCES_CPP_NAMESPACE_QUALIFIER DOMNode * attParent);
XERCES_CPP_NAMESPACE_QUALIFIER DOMDocument
* document;
XSECXPathNodeList m_xpathFilterMap;
lstsVectorType m_lsts;
XSECSafeBufferFormatter * mp_formatter;
/* Used to hold details during tree-walk */
XERCES_CPP_NAMESPACE_QUALIFIER DOMNode
* mp_fragment;
XSECXPathNodeList * mp_inputList;
};
#endif
#endif /* XPATHFILTER_HEADER */
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