org.meruvian.yama.webapi.service.RestSocialSignInService.java Source code

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Here is the source code for org.meruvian.yama.webapi.service.RestSocialSignInService.java

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/**
 * Copyright 2014 Meruvian
 *
 * 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.meruvian.yama.webapi.service;

import java.net.URI;
import java.util.List;

import javax.inject.Inject;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.Response;

import org.meruvian.yama.social.core.SocialService;
import org.meruvian.yama.social.core.SocialServiceLocator;
import org.meruvian.yama.web.CredentialsService;
import org.springframework.security.web.savedrequest.SavedRequest;
import org.springframework.social.connect.Connection;
import org.springframework.social.connect.UsersConnectionRepository;
import org.springframework.stereotype.Service;

/**
 * @author Dian Aditya
 *
 */
@Service
public class RestSocialSignInService implements SocialSignInService {
    public static final String OAUTH_AUTH_URL = "/oauth/authorize";

    @Inject
    private SocialServiceLocator socialServiceLocator;

    @Inject
    private UsersConnectionRepository connectionRepository;

    @Inject
    private CredentialsService credentialsService;

    @Context
    private HttpServletRequest request;

    @Override
    public Response socialSignIn(String provider) {
        String redirectUri = socialServiceLocator.getSocialService(provider).getAuthorizeUrl();

        return Response.seeOther(URI.create(redirectUri)).build();
    }

    @Override
    public Response socialSignInCallback(String provider, String code) {
        SocialService<?> socialService = socialServiceLocator.getSocialService(provider);
        Connection<?> connection = socialService.createConnection(code, null);

        if (socialService.isAuthorized(connection)) {
            List<String> userIds = connectionRepository.findUserIdsWithConnection(connection);

            if (userIds.size() == 1) { // Signin
                String userId = userIds.get(0);

                credentialsService.registerAuthentication(userId);
            }
        }

        return Response.seeOther(URI.create(getRedirectUrlAfterLogin())).build();
    }

    protected String getRedirectUrlAfterLogin() {
        HttpSession session = request.getSession(false);

        if (session != null) {
            SavedRequest savedRequest = (SavedRequest) session.getAttribute("SPRING_SECURITY_SAVED_REQUEST");
            if (savedRequest != null) {
                return savedRequest.getRedirectUrl();
            }
        }

        return "/";
    }
}