org.jose4j.jwt.consumer.SubValidator Maven / Gradle / Ivy
/*
* Copyright 2012-2017 Brian Campbell
*
* 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.jose4j.jwt.consumer;
import org.jose4j.jwt.JwtClaims;
import org.jose4j.jwt.MalformedClaimException;
/**
*
*/
public class SubValidator implements ErrorCodeValidator
{
private static final Error MISSING_SUB = new Error(ErrorCodes.SUBJECT_MISSING, "No Subject (sub) claim is present.");
private boolean requireSubject;
private String expectedSubject;
public SubValidator(boolean requireSubject)
{
this.requireSubject = requireSubject;
}
public SubValidator(String expectedSubject)
{
this(true);
this.expectedSubject = expectedSubject;
}
@Override
public Error validate(JwtContext jwtContext) throws MalformedClaimException
{
JwtClaims jwtClaims = jwtContext.getJwtClaims();
String subject = jwtClaims.getSubject();
if (subject == null && requireSubject)
{
return MISSING_SUB;
}
else if (expectedSubject != null && !expectedSubject.equals(subject))
{
String msg = "Subject (sub) claim value (" + subject + ") doesn't match expected value of " + expectedSubject;
return new Error(ErrorCodes.SUBJECT_INVALID, msg);
}
return null;
}
}