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* and Distribution License("CDDL") (collectively, the "License"). You
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* https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
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package com.sun.xml.bind.v2.util;
import com.sun.xml.bind.Util;
import com.sun.xml.bind.v2.Messages;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.xml.XMLConstants;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.parsers.SAXParserFactory;
import javax.xml.transform.TransformerConfigurationException;
import javax.xml.transform.TransformerFactory;
import javax.xml.validation.SchemaFactory;
import javax.xml.xpath.XPathFactory;
import javax.xml.xpath.XPathFactoryConfigurationException;
import org.xml.sax.SAXException;
import org.xml.sax.SAXNotRecognizedException;
import org.xml.sax.SAXNotSupportedException;
import static com.sun.xml.bind.Util.getSystemProperty;
/**
* Provides helper methods for creating properly configured XML parser
* factory instances with namespace support turned on and configured for
* security.
* @author snajper
*/
public class XmlFactory {
// not in older JDK, so must be duplicated here, otherwise javax.xml.XMLConstants should be used
public static final String ACCESS_EXTERNAL_SCHEMA = "http://javax.xml.XMLConstants/property/accessExternalSchema";
public static final String ACCESS_EXTERNAL_DTD = "http://javax.xml.XMLConstants/property/accessExternalDTD";
private static final Logger LOGGER = Logger.getLogger(XmlFactory.class.getName());
/**
* If true XML security features when parsing XML documents will be disabled.
* The default value is false.
*
* Boolean
* @since 2.2.6
*/
private static final String DISABLE_XML_SECURITY = "com.sun.xml.bind.disableXmlSecurity";
public static final boolean XML_SECURITY_DISABLED = Boolean.parseBoolean(getSystemProperty(DISABLE_XML_SECURITY));
private static boolean isXMLSecurityDisabled(boolean runtimeSetting) {
return XML_SECURITY_DISABLED || runtimeSetting;
}
/**
* Returns properly configured (e.g. security features) schema factory
* - namespaceAware == true
* - securityProcessing == is set based on security processing property, default is true
*/
public static SchemaFactory createSchemaFactory(final String language, boolean disableSecureProcessing) throws IllegalStateException {
try {
SchemaFactory factory = SchemaFactory.newInstance(language);
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.log(Level.FINE, "SchemaFactory instance: {0}", factory);
}
factory.setFeature(XMLConstants.FEATURE_SECURE_PROCESSING, !isXMLSecurityDisabled(disableSecureProcessing));
return factory;
} catch (SAXNotRecognizedException ex) {
LOGGER.log(Level.SEVERE, null, ex);
throw new IllegalStateException(ex);
} catch (SAXNotSupportedException ex) {
LOGGER.log(Level.SEVERE, null, ex);
throw new IllegalStateException(ex);
} catch (AbstractMethodError er) {
LOGGER.log(Level.SEVERE, null, er);
throw new IllegalStateException(Messages.INVALID_JAXP_IMPLEMENTATION.format(), er);
}
}
/**
* Returns properly configured (e.g. security features) parser factory
* - namespaceAware == true
* - securityProcessing == is set based on security processing property, default is true
*/
public static SAXParserFactory createParserFactory(boolean disableSecureProcessing) throws IllegalStateException {
try {
SAXParserFactory factory = SAXParserFactory.newInstance();
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.log(Level.FINE, "SAXParserFactory instance: {0}", factory);
}
factory.setNamespaceAware(true);
factory.setFeature(XMLConstants.FEATURE_SECURE_PROCESSING, !isXMLSecurityDisabled(disableSecureProcessing));
return factory;
} catch (ParserConfigurationException ex) {
LOGGER.log(Level.SEVERE, null, ex);
throw new IllegalStateException( ex);
} catch (SAXNotRecognizedException ex) {
LOGGER.log(Level.SEVERE, null, ex);
throw new IllegalStateException( ex);
} catch (SAXNotSupportedException ex) {
LOGGER.log(Level.SEVERE, null, ex);
throw new IllegalStateException( ex);
} catch (AbstractMethodError er) {
LOGGER.log(Level.SEVERE, null, er);
throw new IllegalStateException(Messages.INVALID_JAXP_IMPLEMENTATION.format(), er);
}
}
/**
* Returns properly configured (e.g. security features) factory
* - securityProcessing == is set based on security processing property, default is true
*/
public static XPathFactory createXPathFactory(boolean disableSecureProcessing) throws IllegalStateException {
try {
XPathFactory factory = XPathFactory.newInstance();
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.log(Level.FINE, "XPathFactory instance: {0}", factory);
}
factory.setFeature(XMLConstants.FEATURE_SECURE_PROCESSING, !isXMLSecurityDisabled(disableSecureProcessing));
return factory;
} catch (XPathFactoryConfigurationException ex) {
LOGGER.log(Level.SEVERE, null, ex);
throw new IllegalStateException( ex);
} catch (AbstractMethodError er) {
LOGGER.log(Level.SEVERE, null, er);
throw new IllegalStateException(Messages.INVALID_JAXP_IMPLEMENTATION.format(), er);
}
}
/**
* Returns properly configured (e.g. security features) factory
* - securityProcessing == is set based on security processing property, default is true
*/
public static TransformerFactory createTransformerFactory(boolean disableSecureProcessing) throws IllegalStateException {
try {
TransformerFactory factory = TransformerFactory.newInstance();
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.log(Level.FINE, "TransformerFactory instance: {0}", factory);
}
factory.setFeature(XMLConstants.FEATURE_SECURE_PROCESSING, !isXMLSecurityDisabled(disableSecureProcessing));
return factory;
} catch (TransformerConfigurationException ex) {
LOGGER.log(Level.SEVERE, null, ex);
throw new IllegalStateException( ex);
} catch (AbstractMethodError er) {
LOGGER.log(Level.SEVERE, null, er);
throw new IllegalStateException(Messages.INVALID_JAXP_IMPLEMENTATION.format(), er);
}
}
/**
* Returns properly configured (e.g. security features) factory
* - namespaceAware == true
* - securityProcessing == is set based on security processing property, default is true
*/
public static DocumentBuilderFactory createDocumentBuilderFactory(boolean disableSecureProcessing) throws IllegalStateException {
try {
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.log(Level.FINE, "DocumentBuilderFactory instance: {0}", factory);
}
factory.setNamespaceAware(true);
factory.setFeature(XMLConstants.FEATURE_SECURE_PROCESSING, !isXMLSecurityDisabled(disableSecureProcessing));
return factory;
} catch (ParserConfigurationException ex) {
LOGGER.log(Level.SEVERE, null, ex);
throw new IllegalStateException( ex);
} catch (AbstractMethodError er) {
LOGGER.log(Level.SEVERE, null, er);
throw new IllegalStateException(Messages.INVALID_JAXP_IMPLEMENTATION.format(), er);
}
}
public static SchemaFactory allowExternalAccess(SchemaFactory sf, String value, boolean disableSecureProcessing) {
// if xml security (feature secure processing) disabled, nothing to do, no restrictions applied
if (isXMLSecurityDisabled(disableSecureProcessing)) {
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.log(Level.FINE, Messages.JAXP_XML_SECURITY_DISABLED.format());
}
return sf;
}
if (System.getProperty("javax.xml.accessExternalSchema") != null) {
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.log(Level.FINE, Messages.JAXP_EXTERNAL_ACCESS_CONFIGURED.format());
}
return sf;
}
try {
sf.setProperty(ACCESS_EXTERNAL_SCHEMA, value);
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.log(Level.FINE, Messages.JAXP_SUPPORTED_PROPERTY.format(ACCESS_EXTERNAL_SCHEMA));
}
} catch (SAXException ignored) {
// nothing to do; support depends on version JDK or SAX implementation
if (LOGGER.isLoggable(Level.CONFIG)) {
LOGGER.log(Level.CONFIG, Messages.JAXP_UNSUPPORTED_PROPERTY.format(ACCESS_EXTERNAL_SCHEMA), ignored);
}
}
return sf;
}
public static SchemaFactory allowExternalDTDAccess(SchemaFactory sf, String value, boolean disableSecureProcessing) {
// if xml security (feature secure processing) disabled, nothing to do, no restrictions applied
if (isXMLSecurityDisabled(disableSecureProcessing)) {
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.log(Level.FINE, Messages.JAXP_XML_SECURITY_DISABLED.format());
}
return sf;
}
if (System.getProperty("javax.xml.accessExternalDTD") != null) {
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.log(Level.FINE, Messages.JAXP_EXTERNAL_ACCESS_CONFIGURED.format());
}
return sf;
}
try {
sf.setProperty(ACCESS_EXTERNAL_DTD, value);
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.log(Level.FINE, Messages.JAXP_SUPPORTED_PROPERTY.format(ACCESS_EXTERNAL_DTD));
}
} catch (SAXException ignored) {
// nothing to do; support depends on version JDK or SAX implementation
if (LOGGER.isLoggable(Level.CONFIG)) {
LOGGER.log(Level.CONFIG, Messages.JAXP_UNSUPPORTED_PROPERTY.format(ACCESS_EXTERNAL_DTD), ignored);
}
}
return sf;
}
}
