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Apache XML Security for Java supports XML-Signature Syntax and Processing,
W3C Recommendation 12 February 2002, and XML Encryption Syntax and
Processing, W3C Recommendation 10 December 2002. As of version 1.4,
the library supports the standard Java API JSR-105: XML Digital Signature APIs.
/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.xml.security.stax.ext;
import jakarta.xml.bind.JAXBContext;
import jakarta.xml.bind.JAXBException;
import java.net.URISyntaxException;
import java.net.URL;
import java.security.interfaces.DSAPrivateKey;
import java.security.interfaces.RSAPrivateKey;
import java.util.HashSet;
import javax.crypto.SecretKey;
import javax.xml.validation.Schema;
import org.apache.xml.security.exceptions.XMLSecurityException;
import org.apache.xml.security.stax.config.Init;
import org.apache.xml.security.stax.securityToken.SecurityTokenConstants;
import org.apache.xml.security.utils.ClassLoaderUtils;
import org.xml.sax.SAXException;
/**
* This is the central class of the streaming XML-security framework.
* Instances of the inbound and outbound security streams can be retrieved
* with this class.
*/
public class XMLSec {
static {
try {
URL resource = ClassLoaderUtils.getResource("security-config.xml", XMLSec.class);
if (resource == null) {
throw new RuntimeException("security-config.xml not found in classpath");
}
Init.init(resource.toURI(), XMLSec.class);
try {
XMLSecurityConstants.setJaxbContext(
JAXBContext.newInstance(
org.apache.xml.security.binding.xmlenc.ObjectFactory.class,
org.apache.xml.security.binding.xmlenc11.ObjectFactory.class,
org.apache.xml.security.binding.xmldsig.ObjectFactory.class,
org.apache.xml.security.binding.xmldsig11.ObjectFactory.class,
org.apache.xml.security.binding.excc14n.ObjectFactory.class,
org.apache.xml.security.binding.xop.ObjectFactory.class
)
);
Schema schema = XMLSecurityUtils.loadXMLSecuritySchemas();
XMLSecurityConstants.setJaxbSchemas(schema);
} catch (JAXBException | SAXException e) {
throw new RuntimeException(e);
}
} catch (XMLSecurityException | URISyntaxException e) {
throw new RuntimeException(e.getMessage(), e);
}
}
public static void init() {
// Do nothing
}
/**
* Creates and configures an outbound streaming security engine
*
* @param securityProperties The user-defined security configuration
* @return A new OutboundXMLSec
* @throws XMLSecurityException
* if the initialisation failed
* @throws org.apache.xml.security.stax.ext.XMLSecurityConfigurationException
* if the configuration is invalid
*/
public static OutboundXMLSec getOutboundXMLSec(XMLSecurityProperties securityProperties) throws XMLSecurityException {
if (securityProperties == null) {
throw new XMLSecurityConfigurationException("stax.missingSecurityProperties");
}
securityProperties = validateAndApplyDefaultsToOutboundSecurityProperties(securityProperties);
return new OutboundXMLSec(securityProperties);
}
/**
* Creates and configures an inbound streaming security engine
*
* @param securityProperties The user-defined security configuration
* @return A new InboundWSSec
* @throws XMLSecurityException
* if the initialisation failed
* @throws org.apache.xml.security.stax.ext.XMLSecurityConfigurationException
* if the configuration is invalid
*/
public static InboundXMLSec getInboundWSSec(XMLSecurityProperties securityProperties) throws XMLSecurityException {
if (securityProperties == null) {
throw new XMLSecurityConfigurationException("stax.missingSecurityProperties");
}
securityProperties = validateAndApplyDefaultsToInboundSecurityProperties(securityProperties);
return new InboundXMLSec(securityProperties);
}
/**
* Validates the user supplied configuration and applies default values as appropriate for the outbound security engine
*
* @param securityProperties The configuration to validate
* @return The validated configuration
* @throws org.apache.xml.security.stax.ext.XMLSecurityConfigurationException
* if the configuration is invalid
*/
public static XMLSecurityProperties validateAndApplyDefaultsToOutboundSecurityProperties(XMLSecurityProperties securityProperties) throws XMLSecurityConfigurationException {
if (securityProperties.getActions() == null || securityProperties.getActions().isEmpty()) {
throw new XMLSecurityConfigurationException("stax.noOutputAction");
}
// Check for duplicate actions
if (new HashSet<>(securityProperties.getActions()).size()
!= securityProperties.getActions().size()) {
throw new XMLSecurityConfigurationException("stax.duplicateActions");
}
if (!securityProperties.isSignatureGenerateIds() && !securityProperties.getIdAttributeNS().equals(XMLSecurityConstants.ATT_NULL_Id)) {
throw new XMLSecurityConfigurationException("stax.idsetbutnotgenerated");
}
if (securityProperties.getSignatureSecureParts() != null && securityProperties.getSignatureSecureParts().size() > 1 && !securityProperties.isSignatureGenerateIds()) {
throw new XMLSecurityConfigurationException("stax.idgenerationdisablewithmultipleparts");
}
for (XMLSecurityConstants.Action action : securityProperties.getActions()) {
if (XMLSecurityConstants.SIGNATURE.equals(action)) {
if (securityProperties.getSignatureAlgorithm() == null) {
if (securityProperties.getSignatureKey() instanceof RSAPrivateKey) {
securityProperties.setSignatureAlgorithm("http://www.w3.org/2000/09/xmldsig#rsa-sha1");
} else if (securityProperties.getSignatureKey() instanceof DSAPrivateKey) {
securityProperties.setSignatureAlgorithm("http://www.w3.org/2000/09/xmldsig#dsa-sha1");
} else if (securityProperties.getSignatureKey() instanceof SecretKey) {
securityProperties.setSignatureAlgorithm("http://www.w3.org/2000/09/xmldsig#hmac-sha1");
}
}
if (securityProperties.getSignatureDigestAlgorithm() == null) {
securityProperties.setSignatureDigestAlgorithm("http://www.w3.org/2000/09/xmldsig#sha1");
}
if (securityProperties.getSignatureCanonicalizationAlgorithm() == null) {
securityProperties.setSignatureCanonicalizationAlgorithm(XMLSecurityConstants.NS_C14N_EXCL_OMIT_COMMENTS);
}
if (securityProperties.getSignatureKeyIdentifiers().isEmpty()) {
securityProperties.setSignatureKeyIdentifier(SecurityTokenConstants.KeyIdentifier_IssuerSerial);
}
} else if (XMLSecurityConstants.ENCRYPTION.equals(action)) {
if (securityProperties.getEncryptionKeyTransportAlgorithm() == null) {
//@see http://www.w3.org/TR/2002/REC-xmlenc-core-20021210/Overview.html#rsa-1_5 :
//"RSA-OAEP is RECOMMENDED for the transport of AES keys"
//@see http://www.w3.org/TR/2002/REC-xmlenc-core-20021210/Overview.html#rsa-oaep-mgf1p
securityProperties.setEncryptionKeyTransportAlgorithm("http://www.w3.org/2001/04/xmlenc#rsa-oaep-mgf1p");
}
if (securityProperties.getEncryptionSymAlgorithm() == null) {
securityProperties.setEncryptionSymAlgorithm("http://www.w3.org/2001/04/xmlenc#aes256-cbc");
}
if (securityProperties.getEncryptionKeyIdentifier() == null) {
securityProperties.setEncryptionKeyIdentifier(SecurityTokenConstants.KeyIdentifier_IssuerSerial);
}
}
}
return new XMLSecurityProperties(securityProperties);
}
/**
* Validates the user supplied configuration and applies default values as appropriate for the inbound security engine
*
* @param securityProperties The configuration to validate
* @return The validated configuration
* @throws org.apache.xml.security.stax.ext.XMLSecurityConfigurationException
* if the configuration is invalid
*/
public static XMLSecurityProperties validateAndApplyDefaultsToInboundSecurityProperties(XMLSecurityProperties securityProperties) throws XMLSecurityConfigurationException {
return new XMLSecurityProperties(securityProperties);
}
}