org.keycloak.adapters.springsecurity.service.KeycloakDirectAccessGrantService.java Source code

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Here is the source code for org.keycloak.adapters.springsecurity.service.KeycloakDirectAccessGrantService.java

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/*
 * Copyright 2015 Smartling, Inc.
 *
 * 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.keycloak.adapters.springsecurity.service;

import org.keycloak.OAuth2Constants;
import org.keycloak.adapters.KeycloakDeployment;
import org.keycloak.adapters.RefreshableKeycloakSecurityContext;
import org.keycloak.adapters.springsecurity.service.context.KeycloakConfidentialClientRequestFactory;
import org.keycloak.adapters.springsecurity.support.KeycloakSpringAdapterUtils;
import org.keycloak.common.VerificationException;
import org.keycloak.representations.AccessTokenResponse;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpEntity;
import org.springframework.http.HttpHeaders;
import org.springframework.http.MediaType;
import org.springframework.stereotype.Component;
import org.springframework.util.LinkedMultiValueMap;
import org.springframework.util.MultiValueMap;
import org.springframework.web.client.RestTemplate;

import javax.annotation.PostConstruct;
import java.util.Arrays;

/**
 * Supports Keycloak's direct access grants API using direct REST invocations to obtain
 * an access token.
 *
 * @author <a href="mailto:srossillo@smartling.com">Scott Rossillo</a>
 */
@Component
public class KeycloakDirectAccessGrantService implements DirectAccessGrantService {

    @Autowired
    private KeycloakDeployment keycloakDeployment;

    @Autowired
    private KeycloakConfidentialClientRequestFactory requestFactory;

    protected RestTemplate template;

    @PostConstruct
    public void init() {
        template = new RestTemplate(requestFactory);
    }

    @Override
    public RefreshableKeycloakSecurityContext login(String username, String password) throws VerificationException {

        final MultiValueMap<String, String> body = new LinkedMultiValueMap<>();
        final HttpHeaders headers = new HttpHeaders();

        headers.setContentType(MediaType.APPLICATION_FORM_URLENCODED);
        headers.setAccept(Arrays.asList(MediaType.APPLICATION_JSON));
        body.set("username", username);
        body.set("password", password);
        body.set(OAuth2Constants.GRANT_TYPE, OAuth2Constants.PASSWORD);

        AccessTokenResponse response = template.postForObject(keycloakDeployment.getTokenUrl(),
                new HttpEntity<>(body, headers), AccessTokenResponse.class);

        return KeycloakSpringAdapterUtils.createKeycloakSecurityContext(keycloakDeployment, response);
    }

}