00001 /* 00002 * The Apache Software License, Version 1.1 00003 * 00004 * 00005 * Copyright (c) 2002-2003 The Apache Software Foundation. All rights 00006 * reserved. 00007 * 00008 * Redistribution and use in source and binary forms, with or without 00009 * modification, are permitted provided that the following conditions 00010 * are met: 00011 * 00012 * 1. Redistributions of source code must retain the above copyright 00013 * notice, this list of conditions and the following disclaimer. 00014 * 00015 * 2. Redistributions in binary form must reproduce the above copyright 00016 * notice, this list of conditions and the following disclaimer in 00017 * the documentation and/or other materials provided with the 00018 * distribution. 00019 * 00020 * 3. The end-user documentation included with the redistribution, 00021 * if any, must include the following acknowledgment: 00022 * "This product includes software developed by the 00023 * Apache Software Foundation (http://www.apache.org/)." 00024 * Alternately, this acknowledgment may appear in the software itself, 00025 * if and wherever such third-party acknowledgments normally appear. 00026 * 00027 * 4. The names "<WebSig>" and "Apache Software Foundation" must 00028 * not be used to endorse or promote products derived from this 00029 * software without prior written permission. For written 00030 * permission, please contact apache@apache.org. 00031 * 00032 * 5. Products derived from this software may not be called "Apache", 00033 * nor may "Apache" appear in their name, without prior written 00034 * permission of the Apache Software Foundation. 00035 * 00036 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED 00037 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 00038 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 00039 * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR 00040 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 00041 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 00042 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 00043 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 00044 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 00045 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 00046 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 00047 * SUCH DAMAGE. 00048 * ==================================================================== 00049 * 00050 * This software consists of voluntary contributions made by many 00051 * individuals on behalf of the Apache Software Foundation and was 00052 * originally based on software copyright (c) 2001, Institute for 00053 * Data Communications Systems, <http://www.nue.et-inf.uni-siegen.de/>. 00054 * The development of this software was partly funded by the European 00055 * Commission in the <WebSig> project in the ISIS Programme. 00056 * For more information on the Apache Software Foundation, please see 00057 * <http://www.apache.org/>. 00058 */ 00059 00060 /* 00061 * XSEC 00062 * 00063 * TXFMXPath := Class that performs XPath transforms 00064 * 00065 * Author(s): Berin Lautenbach 00066 * 00067 * $Id: TXFMXPathFilter.hpp,v 1.3 2003/07/05 10:30:36 blautenb Exp $ 00068 * 00069 */ 00070 00071 #if !defined (TXFMXPATHFILTER_HEADER) 00072 #define XFMXPATHFILTER_HEADER 00073 00074 #include <xsec/transformers/TXFMBase.hpp> 00075 #include <xsec/utils/XSECXPathNodeList.hpp> 00076 #include <xsec/dsig/DSIGTransformXPathFilter.hpp> 00077 #include <xsec/dsig/DSIGConstants.hpp> 00078 00079 // Xerces 00080 00081 XSEC_DECLARE_XERCES_CLASS(DOMNode); 00082 XSEC_DECLARE_XERCES_CLASS(DOMNamedNodeMap); 00083 00084 class TXFMXPathFilterExpr; 00085 class XSECSafeBufferFormatter; 00086 00087 struct filterSetHolder { 00088 00089 XSECXPathNodeList * lst; 00090 xpathFilterType type; 00091 DOMNode * ancestorInScope; 00092 00093 }; 00094 00095 00096 #ifndef XSEC_NO_XPATH 00097 00104 class DSIG_EXPORT TXFMXPathFilter : public TXFMBase { 00105 00106 public: 00107 00108 TXFMXPathFilter(DOMDocument *doc); 00109 ~TXFMXPathFilter(); 00110 00111 // Methods to set the inputs 00112 00113 void setInput(TXFMBase *newInput); 00114 00115 // Methods to get tranform output type and input requirement 00116 00117 virtual TXFMBase::ioType getInputType(void); 00118 virtual TXFMBase::ioType getOutputType(void); 00119 virtual TXFMBase::nodeType getNodeType(void); 00120 00121 // XPathFilter unique 00122 00123 void evaluateExprs(DSIGTransformXPathFilter::exprVectorType * exprs); 00124 XSECXPathNodeList * TXFMXPathFilter::evaluateSingleExpr(DSIGXPathFilterExpr *expr); 00125 00126 // Methods to get output data 00127 00128 virtual unsigned int readBytes(XMLByte * const toFill, const unsigned int maxToFill); 00129 virtual DOMDocument *getDocument(); 00130 virtual DOMNode *getFragmentNode(); 00131 virtual const XMLCh * getFragmentId(); 00132 virtual XSECXPathNodeList & getXPathNodeList(); 00133 00134 private: 00135 00136 typedef std::vector<filterSetHolder *> lstsVectorType; 00137 TXFMXPathFilter(); 00138 void walkDocument(DOMNode * n); 00139 bool checkNodeInScope(DOMNode * n); 00140 bool checkNodeInInput(DOMNode * n); 00141 00142 00143 DOMDocument * document; 00144 XSECXPathNodeList m_xpathFilterMap; 00145 lstsVectorType m_lsts; 00146 00147 XSECSafeBufferFormatter * mp_formatter; 00148 00149 /* Used to hold details during tree-walk */ 00150 DOMNode * mp_fragment; 00151 XSECXPathNodeList * mp_inputList; 00152 00153 }; 00154 00155 #endif 00156 00157 #endif /* XPATHFILTER_HEADER */