com.sun.xml.bind.v2.util.XmlFactory Maven / Gradle / Ivy
The newest version!
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 2013-2017 Oracle and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* https://oss.oracle.com/licenses/CDDL+GPL-1.1
* or LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at LICENSE.txt.
*
* GPL Classpath Exception:
* Oracle designates this particular file as subject to the "Classpath"
* exception as provided by Oracle in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
* If applicable, add the following below the License Header, with the fields
* enclosed by brackets [] replaced by your own identifying information:
* "Portions Copyright [year] [name of copyright owner]"
*
* Contributor(s):
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
* holder.
*/
package com.sun.xml.bind.v2.util;
import com.sun.xml.bind.v2.Messages;
import java.security.AccessController;
import java.security.PrivilegedAction;
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;
/**
* 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";
private static final boolean XML_SECURITY_DISABLED = AccessController.doPrivileged(
new PrivilegedAction() {
@Override
public Boolean run() {
return Boolean.getBoolean(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;
}
}