org.springframework.boot.autoconfigure.security.oauth2.resource.UserInfoTokenServices.java Source code

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Here is the source code for org.springframework.boot.autoconfigure.security.oauth2.resource.UserInfoTokenServices.java

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/*
 * Copyright 2012-2017 the original author or authors.
 *
 * 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 org.springframework.boot.autoconfigure.security.oauth2.resource;

import java.util.Collections;
import java.util.List;
import java.util.Map;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.AuthenticationException;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.oauth2.client.OAuth2RestOperations;
import org.springframework.security.oauth2.client.OAuth2RestTemplate;
import org.springframework.security.oauth2.client.resource.BaseOAuth2ProtectedResourceDetails;
import org.springframework.security.oauth2.common.DefaultOAuth2AccessToken;
import org.springframework.security.oauth2.common.OAuth2AccessToken;
import org.springframework.security.oauth2.common.exceptions.InvalidTokenException;
import org.springframework.security.oauth2.provider.OAuth2Authentication;
import org.springframework.security.oauth2.provider.OAuth2Request;
import org.springframework.security.oauth2.provider.token.ResourceServerTokenServices;
import org.springframework.util.Assert;

/**
 * {@link ResourceServerTokenServices} that uses a user info REST service.
 *
 * @author Dave Syer
 * @since 1.3.0
 */
public class UserInfoTokenServices implements ResourceServerTokenServices {

    protected final Log logger = LogFactory.getLog(getClass());

    private final String userInfoEndpointUrl;

    private final String clientId;

    private OAuth2RestOperations restTemplate;

    private String tokenType = DefaultOAuth2AccessToken.BEARER_TYPE;

    private AuthoritiesExtractor authoritiesExtractor = new FixedAuthoritiesExtractor();

    private PrincipalExtractor principalExtractor = new FixedPrincipalExtractor();

    public UserInfoTokenServices(String userInfoEndpointUrl, String clientId) {
        this.userInfoEndpointUrl = userInfoEndpointUrl;
        this.clientId = clientId;
    }

    public void setTokenType(String tokenType) {
        this.tokenType = tokenType;
    }

    public void setRestTemplate(OAuth2RestOperations restTemplate) {
        this.restTemplate = restTemplate;
    }

    public void setAuthoritiesExtractor(AuthoritiesExtractor authoritiesExtractor) {
        Assert.notNull(authoritiesExtractor, "AuthoritiesExtractor must not be null");
        this.authoritiesExtractor = authoritiesExtractor;
    }

    public void setPrincipalExtractor(PrincipalExtractor principalExtractor) {
        Assert.notNull(principalExtractor, "PrincipalExtractor must not be null");
        this.principalExtractor = principalExtractor;
    }

    @Override
    public OAuth2Authentication loadAuthentication(String accessToken)
            throws AuthenticationException, InvalidTokenException {
        Map<String, Object> map = getMap(this.userInfoEndpointUrl, accessToken);
        if (map.containsKey("error")) {
            if (this.logger.isDebugEnabled()) {
                this.logger.debug("userinfo returned error: " + map.get("error"));
            }
            throw new InvalidTokenException(accessToken);
        }
        return extractAuthentication(map);
    }

    private OAuth2Authentication extractAuthentication(Map<String, Object> map) {
        Object principal = getPrincipal(map);
        List<GrantedAuthority> authorities = this.authoritiesExtractor.extractAuthorities(map);
        OAuth2Request request = new OAuth2Request(null, this.clientId, null, true, null, null, null, null, null);
        UsernamePasswordAuthenticationToken token = new UsernamePasswordAuthenticationToken(principal, "N/A",
                authorities);
        token.setDetails(map);
        return new OAuth2Authentication(request, token);
    }

    /**
     * Return the principal that should be used for the token. The default implementation
     * delegates to the {@link PrincipalExtractor}.
     * @param map the source map
     * @return the principal or {@literal "unknown"}
     */
    protected Object getPrincipal(Map<String, Object> map) {
        Object principal = this.principalExtractor.extractPrincipal(map);
        return (principal == null ? "unknown" : principal);
    }

    @Override
    public OAuth2AccessToken readAccessToken(String accessToken) {
        throw new UnsupportedOperationException("Not supported: read access token");
    }

    @SuppressWarnings({ "unchecked" })
    private Map<String, Object> getMap(String path, String accessToken) {
        if (this.logger.isDebugEnabled()) {
            this.logger.debug("Getting user info from: " + path);
        }
        try {
            OAuth2RestOperations restTemplate = this.restTemplate;
            if (restTemplate == null) {
                BaseOAuth2ProtectedResourceDetails resource = new BaseOAuth2ProtectedResourceDetails();
                resource.setClientId(this.clientId);
                restTemplate = new OAuth2RestTemplate(resource);
            }
            OAuth2AccessToken existingToken = restTemplate.getOAuth2ClientContext().getAccessToken();
            if (existingToken == null || !accessToken.equals(existingToken.getValue())) {
                DefaultOAuth2AccessToken token = new DefaultOAuth2AccessToken(accessToken);
                token.setTokenType(this.tokenType);
                restTemplate.getOAuth2ClientContext().setAccessToken(token);
            }
            return restTemplate.getForEntity(path, Map.class).getBody();
        } catch (Exception ex) {
            this.logger.warn("Could not fetch user details: " + ex.getClass() + ", " + ex.getMessage());
            return Collections.<String, Object>singletonMap("error", "Could not fetch user details");
        }
    }

}