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package com.sun.xml.messaging.saaj.util;
import java.util.logging.Logger;
import javax.xml.parsers.SAXParser;
import javax.xml.soap.SOAPException;
import org.xml.sax.*;
import org.xml.sax.ext.LexicalHandler;
import org.xml.sax.helpers.XMLFilterImpl;
import com.sun.xml.messaging.saaj.SOAPExceptionImpl;
import org.xml.sax.helpers.AttributesImpl;
/**
* Users of this class see a SAX2 XMLReader (via XMLFilterImpl). This
* class creates a parent XMLReader via JAXP and installs itself as a SAX2
* extension LexicalHandler which rejects document type declarations
* because they are not legal in SOAP. If the user of this class sets a
* LexicalHandler, then it forwards events to that handler.
*
*
* @author Edwin Goei
*/
public class RejectDoctypeSaxFilter extends XMLFilterImpl implements XMLReader, LexicalHandler{
protected static final Logger log =
Logger.getLogger(LogDomainConstants.UTIL_DOMAIN,
"com.sun.xml.messaging.saaj.util.LocalStrings");
/** Standard SAX 2.0 ext property */
static final String LEXICAL_HANDLER_PROP =
"http://xml.org/sax/properties/lexical-handler";
static final String WSU_NS = "http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd".intern();
static final String SIGNATURE_LNAME = "Signature".intern();
static final String ENCRYPTED_DATA_LNAME = "EncryptedData".intern();
static final String DSIG_NS = "http://www.w3.org/2000/09/xmldsig#".intern();
static final String XENC_NS = "http://www.w3.org/2001/04/xmlenc#".intern();
static final String ID_NAME = "ID".intern();
/** LexicalHandler to forward events to, if any */
private LexicalHandler lexicalHandler;
public RejectDoctypeSaxFilter(SAXParser saxParser) throws SOAPException {
XMLReader xmlReader;
try {
xmlReader = saxParser.getXMLReader();
} catch (Exception e) {
log.severe("SAAJ0602.util.getXMLReader.exception");
throw new SOAPExceptionImpl(
"Couldn't get an XMLReader while constructing a RejectDoctypeSaxFilter",
e);
}
// Set ourselves up to be the SAX LexicalHandler
try {
xmlReader.setProperty(LEXICAL_HANDLER_PROP, this);
} catch (Exception e) {
log.severe("SAAJ0603.util.setProperty.exception");
throw new SOAPExceptionImpl(
"Couldn't set the lexical handler property while constructing a RejectDoctypeSaxFilter",
e);
}
// Set the parent XMLReader of this SAX filter
setParent(xmlReader);
}
/*
* Override setProperty() to capture any LexicalHandler that is set for
* forwarding of events.
*/
public void setProperty(String name, Object value)
throws SAXNotRecognizedException, SAXNotSupportedException {
if (LEXICAL_HANDLER_PROP.equals(name)) {
lexicalHandler = (LexicalHandler) value;
} else {
super.setProperty(name, value);
}
}
//
// Beginning of SAX LexicalHandler callbacks...
//
public void startDTD(String name, String publicId, String systemId)
throws SAXException {
throw new SAXException("Document Type Declaration is not allowed");
}
public void endDTD() throws SAXException {
}
public void startEntity(String name) throws SAXException {
if (lexicalHandler != null) {
lexicalHandler.startEntity(name);
}
}
public void endEntity(String name) throws SAXException {
if (lexicalHandler != null) {
lexicalHandler.endEntity(name);
}
}
public void startCDATA() throws SAXException {
if (lexicalHandler != null) {
lexicalHandler.startCDATA();
}
}
public void endCDATA() throws SAXException {
if (lexicalHandler != null) {
lexicalHandler.endCDATA();
}
}
public void comment(char[] ch, int start, int length) throws SAXException {
if (lexicalHandler != null) {
lexicalHandler.comment(ch, start, length);
}
}
//
// End of SAX LexicalHandler callbacks
//
public void startElement(String namespaceURI, String localName,
String qName, Attributes atts) throws SAXException{
if(atts != null ){
boolean eos = false;
if(namespaceURI == DSIG_NS || XENC_NS == namespaceURI){
eos = true;
}
int length = atts.getLength();
AttributesImpl attrImpl = new AttributesImpl();
for(int i=0; i< length;i++){
String name = atts.getLocalName(i);
if(name!=null && (name.equals("Id"))){
if(eos || atts.getURI(i) == WSU_NS ){
attrImpl.addAttribute(atts.getURI(i), atts.getLocalName(i),
atts.getQName(i), ID_NAME, atts.getValue(i));
}else{
attrImpl.addAttribute(atts.getURI(i), atts.getLocalName(i), atts.getQName(i), atts.getType(i), atts.getValue(i));
}
}else{
attrImpl.addAttribute(atts.getURI(i), atts.getLocalName(i),
atts.getQName(i), atts.getType(i), atts.getValue(i));
}
}
super.startElement(namespaceURI,localName, qName,attrImpl);
}else{
super.startElement(namespaceURI,localName, qName, atts);
}
}
}