/* * The Apache Software License, Version 1.1 * * * Copyright (c) 1999-2002 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 "Xerces" 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) 1999, International * Business Machines, Inc., http://www.apache.org. For more * information on the Apache Software Foundation, please see * . */ package com.sun.org.apache.xerces.internal.impl.dtd; import com.sun.org.apache.xerces.internal.impl.XMLErrorReporter; import com.sun.org.apache.xerces.internal.impl.msg.XMLMessageFormatter; import com.sun.org.apache.xerces.internal.util.XMLSymbols; import com.sun.org.apache.xerces.internal.xni.Augmentations; import com.sun.org.apache.xerces.internal.xni.NamespaceContext; import com.sun.org.apache.xerces.internal.xni.QName; import com.sun.org.apache.xerces.internal.xni.XMLAttributes; import com.sun.org.apache.xerces.internal.xni.XNIException; /** * The DTD validator. The validator implements a document * filter: receiving document events from the scanner; validating * the content and structure; augmenting the InfoSet, if applicable; * and notifying the parser of the information resulting from the * validation process. *

Formerly, this component also handled DTD events and grammar construction. * To facilitate the development of a meaningful DTD grammar caching/preparsing * framework, this functionality has been moved into the XMLDTDLoader * class. Therefore, this class no longer implements the DTDFilter * or DTDContentModelFilter interfaces. *

* This component requires the following features and properties from the * component manager that uses it: *

* * @author Elena Litani, IBM * * @version $Id: XMLNSDTDValidator.java,v 1.7 2003/10/10 18:25:40 mrglavas Exp $ */ public class XMLNSDTDValidator extends XMLDTDValidator{ /** Attribute QName. */ private QName fAttributeQName = new QName(); /** Bind namespaces */ protected final void startNamespaceScope (QName element, XMLAttributes attributes, Augmentations augs) throws XNIException { // add new namespace context fNamespaceContext.pushContext(); if (element.prefix == XMLSymbols.PREFIX_XMLNS) { fErrorReporter.reportError(XMLMessageFormatter.XMLNS_DOMAIN, "ElementXMLNSPrefix", new Object[]{element.rawname}, XMLErrorReporter.SEVERITY_FATAL_ERROR); } // search for new namespace bindings int length = attributes.getLength(); for (int i = 0; i < length; i++) { String localpart = attributes.getLocalName(i); String prefix = attributes.getPrefix(i); // when it's of form xmlns="..." or xmlns:prefix="...", // it's a namespace declaration. but prefix:xmlns="..." isn't. if (prefix == XMLSymbols.PREFIX_XMLNS || prefix == XMLSymbols.EMPTY_STRING && localpart == XMLSymbols.PREFIX_XMLNS) { // get the internalized value of this attribute String uri = fSymbolTable.addSymbol(attributes.getValue(i)); // 1. "xmlns" can't be bound to any namespace if (prefix == XMLSymbols.PREFIX_XMLNS && localpart == XMLSymbols.PREFIX_XMLNS) { fErrorReporter.reportError(XMLMessageFormatter.XMLNS_DOMAIN, "CantBindXMLNS", new Object[]{attributes.getQName(i)}, XMLErrorReporter.SEVERITY_FATAL_ERROR); } // 2. the namespace for "xmlns" can't be bound to any prefix if (uri == NamespaceContext.XMLNS_URI) { fErrorReporter.reportError(XMLMessageFormatter.XMLNS_DOMAIN, "CantBindXMLNS", new Object[]{attributes.getQName(i)}, XMLErrorReporter.SEVERITY_FATAL_ERROR); } // 3. "xml" can't be bound to any other namespace than it's own if (localpart == XMLSymbols.PREFIX_XML) { if (uri != NamespaceContext.XML_URI) { fErrorReporter.reportError(XMLMessageFormatter.XMLNS_DOMAIN, "CantBindXML", new Object[]{attributes.getQName(i)}, XMLErrorReporter.SEVERITY_FATAL_ERROR); } } // 4. the namespace for "xml" can't be bound to any other prefix else { if (uri ==NamespaceContext.XML_URI) { fErrorReporter.reportError(XMLMessageFormatter.XMLNS_DOMAIN, "CantBindXML", new Object[]{attributes.getQName(i)}, XMLErrorReporter.SEVERITY_FATAL_ERROR); } } prefix = localpart != XMLSymbols.PREFIX_XMLNS ? localpart : XMLSymbols.EMPTY_STRING; // http://www.w3.org/TR/1999/REC-xml-names-19990114/#dt-prefix // We should only report an error if there is a prefix, // that is, the local part is not "xmlns". -SG if (uri == XMLSymbols.EMPTY_STRING && localpart != XMLSymbols.PREFIX_XMLNS) { fErrorReporter.reportError(XMLMessageFormatter.XMLNS_DOMAIN, "EmptyPrefixedAttName", new Object[]{attributes.getQName(i)}, XMLErrorReporter.SEVERITY_FATAL_ERROR); continue; } // declare prefix in context fNamespaceContext.declarePrefix(prefix, uri.length() != 0 ? uri : null); } } // bind the element String prefix = element.prefix != null ? element.prefix : XMLSymbols.EMPTY_STRING; element.uri = fNamespaceContext.getURI(prefix); if (element.prefix == null && element.uri != null) { element.prefix = XMLSymbols.EMPTY_STRING; } if (element.prefix != null && element.uri == null) { fErrorReporter.reportError(XMLMessageFormatter.XMLNS_DOMAIN, "ElementPrefixUnbound", new Object[]{element.prefix, element.rawname}, XMLErrorReporter.SEVERITY_FATAL_ERROR); } // bind the attributes for (int i = 0; i < length; i++) { attributes.getName(i, fAttributeQName); String aprefix = fAttributeQName.prefix != null ? fAttributeQName.prefix : XMLSymbols.EMPTY_STRING; String arawname = fAttributeQName.rawname; if (arawname == XMLSymbols.PREFIX_XMLNS) { fAttributeQName.uri = fNamespaceContext.getURI(XMLSymbols.PREFIX_XMLNS); attributes.setName(i, fAttributeQName); } else if (aprefix != XMLSymbols.EMPTY_STRING) { fAttributeQName.uri = fNamespaceContext.getURI(aprefix); if (fAttributeQName.uri == null) { fErrorReporter.reportError(XMLMessageFormatter.XMLNS_DOMAIN, "AttributePrefixUnbound", new Object[]{element.rawname,arawname,aprefix}, XMLErrorReporter.SEVERITY_FATAL_ERROR); } attributes.setName(i, fAttributeQName); } } // verify that duplicate attributes don't exist // Example: int attrCount = attributes.getLength(); for (int i = 0; i < attrCount - 1; i++) { String auri = attributes.getURI(i); if (auri == null || auri == NamespaceContext.XMLNS_URI) { continue; } String alocalpart = attributes.getLocalName(i); for (int j = i + 1; j < attrCount; j++) { String blocalpart = attributes.getLocalName(j); String buri = attributes.getURI(j); if (alocalpart == blocalpart && auri == buri) { fErrorReporter.reportError(XMLMessageFormatter.XMLNS_DOMAIN, "AttributeNSNotUnique", new Object[]{element.rawname,alocalpart, auri}, XMLErrorReporter.SEVERITY_FATAL_ERROR); } } } } // startNamespaceScope(QName,XMLAttributes) /** Handles end element. */ protected void endNamespaceScope(QName element, Augmentations augs, boolean isEmpty) throws XNIException { // bind element String eprefix = element.prefix != null ? element.prefix : XMLSymbols.EMPTY_STRING; element.uri = fNamespaceContext.getURI(eprefix); if (element.uri != null) { element.prefix = eprefix; } // call handlers if (fDocumentHandler != null) { if (!isEmpty) { fDocumentHandler.endElement(element, augs); } } // pop context fNamespaceContext.popContext(); } // endNamespaceScope(QName,boolean) }