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Diffstat (limited to 'src/share/classes/com/sun/org/apache/xerces/internal/impl/dtd/XMLNSDTDValidator.java')
| -rw-r--r-- | src/share/classes/com/sun/org/apache/xerces/internal/impl/dtd/XMLNSDTDValidator.java | 275 |
1 files changed, 275 insertions, 0 deletions
diff --git a/src/share/classes/com/sun/org/apache/xerces/internal/impl/dtd/XMLNSDTDValidator.java b/src/share/classes/com/sun/org/apache/xerces/internal/impl/dtd/XMLNSDTDValidator.java new file mode 100644 index 0000000..bf4ecf8 --- /dev/null +++ b/src/share/classes/com/sun/org/apache/xerces/internal/impl/dtd/XMLNSDTDValidator.java @@ -0,0 +1,275 @@ +/* + * reserved comment block + * DO NOT REMOVE OR ALTER! + */ +/* + * 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 + * <http://www.apache.org/>. + */ + +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. + * <p> 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. + * <p> + * This component requires the following features and properties from the + * component manager that uses it: + * <ul> + * <li>http://xml.org/sax/features/namespaces</li> + * <li>http://xml.org/sax/features/validation</li> + * <li>http://apache.org/xml/features/validation/dynamic</li> + * <li>http://apache.org/xml/properties/internal/symbol-table</li> + * <li>http://apache.org/xml/properties/internal/error-reporter</li> + * <li>http://apache.org/xml/properties/internal/grammar-pool</li> + * <li>http://apache.org/xml/properties/internal/datatype-validator-factory</li> + * </ul> + * + * @xerces.internal + * + * @author Elena Litani, IBM + * + + */ +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: <foo xmlns:a='NS' xmlns:b='NS' a:attr='v1' b:attr='v2'/> + 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) + +} |