shiver.me.timbers.spring.security.jwt.JwtPrincipalAuthenticationConverter.java Source code

Introduction

Here is the source code for shiver.me.timbers.spring.security.jwt.JwtPrincipalAuthenticationConverter.java

Source

/*
 * Copyright 2016 Karl Bennett
 *
 * 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 shiver.me.timbers.spring.security.jwt;

import org.springframework.security.core.Authentication;
import org.springframework.security.core.userdetails.UserDetails;
import shiver.me.timbers.spring.security.JwtAuthentication;

/**
 * @author Karl Bennett
 */
public class JwtPrincipalAuthenticationConverter implements AuthenticationConverter<JwtPrincipal> {

    private final RolesGrantedAuthorityConverter grantedAuthorityConverter;

    public JwtPrincipalAuthenticationConverter(RolesGrantedAuthorityConverter grantedAuthorityConverter) {
        this.grantedAuthorityConverter = grantedAuthorityConverter;
    }

    @Override
    public JwtPrincipal convert(Authentication authentication) {
        return new JwtPrincipal(extractUsername(authentication),
                grantedAuthorityConverter.convert(authentication.getAuthorities()));
    }

    @Override
    public Authentication convert(JwtPrincipal principal) {
        return new JwtAuthentication(principal.getUsername(),
                grantedAuthorityConverter.convert(principal.getRoles()));
    }

    private String extractUsername(Authentication authentication) {
        final Object principal = authentication.getPrincipal();

        if (principal instanceof UserDetails) {
            return ((UserDetails) principal).getUsername();
        }

        return principal.toString();
    }
}