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/*
* Copyright 2002-2005 The Apache Software Foundation.
*
* Licensed 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
*
* DSIGXPathFilterExpr := Class that holds an XPath Filter expression
*
* $Id: DSIGXPathFilterExpr.hpp 351364 2005-06-04 11:30:26Z blautenb $
*
*/
#ifndef DSIGXPATHFILTEREXPR_INCLUDE
#define DSIGXPATHFILTEREXPR_INCLUDE
#include <xsec/framework/XSECDefs.hpp>
#include <xsec/dsig/DSIGConstants.hpp>
#include <xsec/utils/XSECSafeBuffer.hpp>
XSEC_DECLARE_XERCES_CLASS(DOMNamedNodeMap);
XSEC_DECLARE_XERCES_CLASS(DOMNode);
XSEC_DECLARE_XERCES_CLASS(DOMElement);
class XSECEnv;
/**
* @ingroup pubsig
*/
/**
* @brief Class used to hold (and manipulate) individual expressions
* in an XPathFilter transform
*
* @see TXFMXPathFilter
* @see DSIGTransformXpathFilter
*
*/
class DSIG_EXPORT DSIGXPathFilterExpr {
public:
/** @name Constructors and Destructors */
//@{
/**
* \brief Constructor used for existing XML signatures
*
* Node already exists and is part of an existing XPathFilter tree
*
* @param env The operating environment
* @param node The node that will be used to read the expression in
*/
DSIGXPathFilterExpr(const XSECEnv * env, XERCES_CPP_NAMESPACE_QUALIFIER DOMNode * node);
/**
* \brief Builder constructor
*
* Used to create the DOM structure and DSIGSignature elements
*
* @param env The operating Environment
*/
DSIGXPathFilterExpr(const XSECEnv * env);
/**
* \brief Destructor.
*
* Destroy the DSIGSignature elements.
*
* Does not destroy any associated DOM Nodes
*/
~DSIGXPathFilterExpr();
//@}
/** @name Set and get Information */
//@{
/**
* \brief Read in existing structure
*
* Reads DOM structure of the XPath expression
*/
void load(void);
/**
* \brief Get the filter type
*
* Returns the type of this particular XPath filter
*
* @returns The filter type of this expression
*/
xpathFilterType getFilterType(void);
/**
* \brief create from blank
*
* Given the filter type and XPath expression, setup the
* DOMNodes and variables to allow signing and validation
*
* @param filterType Type of this filter to add
* @param filterExpr The XPath expression
*/
XERCES_CPP_NAMESPACE_QUALIFIER DOMElement * setFilter(xpathFilterType filterType,
const XMLCh * filterExpr);
/**
* \brief Get the filter expression
*
* Returns an XMLCh string containing the filter expression
*
* @returns The filter expression
*/
const XMLCh * getFilter(void) {return m_expr.rawXMLChBuffer();}
/**
* \brief Add a new namespace to the list to be used
*
* Add a new namespace to the XPath Element.
*
* @param prefix NCName of the Namespace to set
* @param value The string with the URI to set
*/
void setNamespace(const XMLCh * prefix, const XMLCh * value);
/**
* \brief Get the list of namespaces.
*
* Returns the DOMNamedNodeMap of the attributes of the XPath transform
* node.
*
* @note This will also contain the Filter attribute
*
* @returns A pointer to the NamedNodeMap
*/
XERCES_CPP_NAMESPACE_QUALIFIER DOMNamedNodeMap * getNamespaces(void) {
return mp_NSMap;
}
/**
* \brief Delete a namespace to the list to be used
*
* Delete a namespace from the XPath Element.
*
* @param prefix NCName of the Namespace to delete
* @throws XSECException if the NCName does not exist
*
*/
void deleteNamespace(const XMLCh * prefix);
//@}
private:
// Just let the TXFM read directly
friend class TXFMXPathFilter;
DSIGXPathFilterExpr();
DSIGXPathFilterExpr(const DSIGXPathFilterExpr& theOther);
const XSECEnv * mp_env;
XERCES_CPP_NAMESPACE_QUALIFIER DOMNode
* mp_xpathFilterNode;
XERCES_CPP_NAMESPACE_QUALIFIER DOMNode
* mp_exprTextNode;
XERCES_CPP_NAMESPACE_QUALIFIER DOMNamedNodeMap
* mp_NSMap;
safeBuffer m_expr;
xpathFilterType m_filterType;
bool m_loaded;
};
#endif /* DSIGXPATHFILTEREXPR_INCLUDE */
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