com.c4_soft.springaddons.security.oauth2.keycloak.KeycloakJwtAuthenticationTokenConverter Maven / Gradle / Ivy

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/*
 * Copyright 2020 Jérôme Wacongne
 *
 * 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
 *
 *      https://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 com.c4_soft.springaddons.security.oauth2.keycloak;

import java.util.Collection;

import org.springframework.core.convert.converter.Converter;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.oauth2.core.oidc.StandardClaimNames;
import org.springframework.security.oauth2.jwt.Jwt;
import org.springframework.security.oauth2.server.resource.authentication.JwtAuthenticationToken;

public class KeycloakJwtAuthenticationTokenConverter implements Converter {

	private final Converter> authoritiesConverter;

	public KeycloakJwtAuthenticationTokenConverter(Converter> authoritiesConverter) {
		super();
		this.authoritiesConverter = authoritiesConverter;
	}

	@Override
	public JwtAuthenticationToken convert(Jwt jwt) {
		return new JwtAuthenticationToken(
				jwt,
				authoritiesConverter.convert(jwt),
				jwt.getClaimAsString(StandardClaimNames.PREFERRED_USERNAME));
	}
}