/*
* Copyright [2005] [University Corporation for Advanced Internet Development, Inc.]
*
* Licensed 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.opensaml.saml2.metadata.validator;
import org.opensaml.saml2.metadata.KeyDescriptor;
import org.opensaml.xml.security.credential.UsageType;
import org.opensaml.xml.validation.ValidationException;
import org.opensaml.xml.validation.Validator;
/**
* Checks {@link org.opensaml.saml2.metadata.KeyDescriptor} for Schema compliance.
*/
public class KeyDescriptorSchemaValidator implements Validator<KeyDescriptor> {
/** Constructor. */
public KeyDescriptorSchemaValidator() {
}
/** {@inheritDoc} */
public void validate(KeyDescriptor keyDescriptor) throws ValidationException {
validateKeyInfo(keyDescriptor);
validateUse(keyDescriptor);
}
/**
* Checks that KeyInfo is present.
*
* @param keyDescriptor the key descriptor to validate
* @throws ValidationException thrown if KeyInfo is not present
*/
protected void validateKeyInfo(KeyDescriptor keyDescriptor) throws ValidationException {
if (keyDescriptor.getKeyInfo()==null) {
throw new ValidationException("KeyInfo required");
}
}
/**
* Checks that use attribute has only one of allowed values.
*
* @param keyDescriptor the key descriptor to validate
* @throws ValidationException throw in use attribute does not have a legal value
*/
protected void validateUse(KeyDescriptor keyDescriptor) throws ValidationException {
UsageType use = keyDescriptor.getUse();
if (use == null) {
return;
}
if ( ! use.equals(UsageType.SIGNING)
&& ! use.equals(UsageType.ENCRYPTION)
&& ! use.equals(UsageType.UNSPECIFIED) ) {
throw new ValidationException("Invalid value for use attribute: " + use.toString());
}
}
}