nl.surfnet.coin.api.oauth.ClientMetaDataTokenEnhancer.java Source code

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Here is the source code for nl.surfnet.coin.api.oauth.ClientMetaDataTokenEnhancer.java

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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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 nl.surfnet.coin.api.oauth;

import javax.annotation.Resource;

import nl.surfnet.coin.api.saml.SAMLAuthenticationToken;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.security.core.Authentication;
import org.springframework.security.oauth2.common.OAuth2AccessToken;
import org.springframework.security.oauth2.provider.AuthorizationRequest;
import org.springframework.security.oauth2.provider.ClientDetails;
import org.springframework.security.oauth2.provider.ClientDetailsService;
import org.springframework.security.oauth2.provider.OAuth2Authentication;
import org.springframework.security.oauth2.provider.token.TokenEnhancer;
import org.springframework.stereotype.Component;

/**
 * {@link TokenEnhancer} that stores the {@link ClientMetaData} within the
 * Authentication object
 * 
 */
@Component(value = "clientMetaDataTokenEnhancer")
public class ClientMetaDataTokenEnhancer implements TokenEnhancer {
    private static final Logger LOG = LoggerFactory.getLogger(ClientMetaDataTokenEnhancer.class);

    @Resource(name = "janusClientDetailsService")
    private ClientDetailsService clientDetailsService;

    @Override
    public OAuth2AccessToken enhance(OAuth2AccessToken accessToken, OAuth2Authentication authentication) {
        AuthorizationRequest authorizationRequest = authentication.getAuthorizationRequest();
        String clientId = authorizationRequest.getClientId();
        ClientDetails clientDetails = clientDetailsService.loadClientByClientId(clientId);
        if (clientDetails instanceof OpenConextClientDetails) {
            ClientMetaData clientMetaData = ((OpenConextClientDetails) clientDetails).getClientMetaData();
            Authentication userAuthentication = authentication.getUserAuthentication();
            if (userAuthentication instanceof SAMLAuthenticationToken) {
                ((SAMLAuthenticationToken) userAuthentication).setClientMetaData(clientMetaData);
            } else if (null == userAuthentication) {
                LOG.debug("We are doing client credentials, token will not be enhanced with user authentication");
            } else {
                throw new RuntimeException("The userAuthentication is of the type '"
                        + (userAuthentication != null ? userAuthentication.getClass() : "null")
                        + "'. Required is a (sub)class of SAMLAuthenticationToken");
            }
        }
        /*
         * Part of the method contract. We did however change the
         * OAuth2Authentication and that is stored as a blob in the database, so the
         * metadata is accessible later on when checking for ACL's against the SP
         */
        return accessToken;
    }

}