org.jose4j.jwt.consumer.IssValidator 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.MalformedClaimException;
import java.util.Collections;
import java.util.HashSet;
import java.util.Set;
/**
*
*/
public class IssValidator implements ErrorCodeValidator
{
private Set expectedIssuers;
private boolean requireIssuer;
public IssValidator(String expectedIssuer, boolean requireIssuer)
{
if (expectedIssuer != null)
{
this.expectedIssuers = Collections.singleton(expectedIssuer);
}
this.requireIssuer = requireIssuer;
}
public IssValidator(boolean requireIssuer, String... expectedIssuers)
{
this.requireIssuer = requireIssuer;
if (expectedIssuers != null && expectedIssuers.length > 0)
{
this.expectedIssuers = new HashSet<>();
Collections.addAll(this.expectedIssuers, expectedIssuers);
}
}
@Override
public Error validate(JwtContext jwtContext) throws MalformedClaimException
{
String issuer = jwtContext.getJwtClaims().getIssuer();
if (issuer == null)
{
return requireIssuer ? new Error(ErrorCodes.ISSUER_MISSING, "No Issuer (iss) claim present.") : null;
}
if (expectedIssuers != null && !expectedIssuers.contains(issuer))
{
return new Error(ErrorCodes.ISSUER_INVALID, "Issuer (iss) claim value (" + issuer + ") doesn't match expected value of " + expectedValue());
}
return null;
}
private String expectedValue()
{
return expectedIssuers.size() == 1 ? expectedIssuers.iterator().next() : "one of " + expectedIssuers;
}
}