org.easit.core.configurations.SocialConfig.java Source code

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Here is the source code for org.easit.core.configurations.SocialConfig.java

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/*
 * Copyright 2011 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
 *
 *      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.easit.core.configurations;

import javax.inject.Inject;
import javax.sql.DataSource;

import org.easit.core.controllers.facebook.FacebookAfterConnectInterceptor;
import org.easit.core.controllers.signin.SimpleSignInAdapter;
import org.easit.core.controllers.twitter.TwitterAfterConnectInterceptor;
import org.easit.core.handlers.AfterLoginSuccessHandler;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Scope;
import org.springframework.context.annotation.ScopedProxyMode;
import org.springframework.core.env.Environment;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.security.crypto.encrypt.Encryptors;
import org.springframework.security.web.savedrequest.RequestCache;
import org.springframework.social.connect.Connection;
import org.springframework.social.connect.ConnectionFactoryLocator;
import org.springframework.social.connect.ConnectionRepository;
import org.springframework.social.connect.UsersConnectionRepository;
import org.springframework.social.connect.jdbc.JdbcUsersConnectionRepository;
import org.springframework.social.connect.support.ConnectionFactoryRegistry;
import org.springframework.social.connect.web.ConnectController;
import org.springframework.social.connect.web.ProviderSignInController;
import org.springframework.social.facebook.api.Facebook;
import org.springframework.social.facebook.api.impl.FacebookTemplate;
import org.springframework.social.facebook.connect.FacebookConnectionFactory;
import org.springframework.social.twitter.api.Twitter;
import org.springframework.social.twitter.api.impl.TwitterTemplate;
import org.springframework.social.twitter.connect.TwitterConnectionFactory;

/**
 * Spring Social Configuration.
 */
@Configuration
public class SocialConfig {

    private static final Logger logger = LoggerFactory.getLogger(SocialConfig.class);

    @Inject
    private Environment environment;

    @Inject
    private DataSource dataSource;

    @Inject
    AfterLoginSuccessHandler loginSuccess;

    /**
     * Registering the ASIT connections provided to social networks. This
     * process requires to gather private keys of the social services associated
     * to the application
     * 
     * @return
     */
    @Bean
    @Scope(value = "singleton", proxyMode = ScopedProxyMode.INTERFACES)
    public ConnectionFactoryLocator connectionFactoryLocator() {
        //Handles the back-end side of the authorization flow
        ConnectionFactoryRegistry registry = new ConnectionFactoryRegistry();
        registry.addConnectionFactory(new TwitterConnectionFactory(environment.getProperty("twitter.consumerKey"),
                environment.getProperty("twitter.consumerSecret")));
        registry.addConnectionFactory(new FacebookConnectionFactory(environment.getProperty("facebook.clientId"),
                environment.getProperty("facebook.clientSecret")));
        return registry;
    }

    @Bean
    @Scope(value = "singleton", proxyMode = ScopedProxyMode.INTERFACES)
    public UsersConnectionRepository usersConnectionRepository() {
        return new JdbcUsersConnectionRepository(dataSource, connectionFactoryLocator(), Encryptors.noOpText());
    }

    @Bean
    @Scope(value = "request", proxyMode = ScopedProxyMode.INTERFACES)
    public ConnectionRepository connectionRepository() {
        Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
        if (authentication == null) {
            throw new IllegalStateException("Unable to get a ConnectionRepository: no user signed in");
        }
        return usersConnectionRepository().createConnectionRepository(authentication.getName());
    }

    @Bean
    @Scope(value = "request", proxyMode = ScopedProxyMode.INTERFACES)
    public Facebook facebook() {
        Connection<Facebook> connection = connectionRepository().findPrimaryConnection(Facebook.class);
        return connection != null ? connection.getApi() : new FacebookTemplate();
    }

    @Bean
    @Scope(value = "request", proxyMode = ScopedProxyMode.INTERFACES)
    public Twitter twitter() {
        Connection<Twitter> twitter = connectionRepository().findPrimaryConnection(Twitter.class);
        return twitter != null ? twitter.getApi() : new TwitterTemplate();
    }

    @Bean
    public ConnectController connectController() {
        ConnectController connectController = new ConnectController(connectionFactoryLocator(),
                connectionRepository());

        //TODO: IS necessary?? - 
        //Adds a ConnectInterceptor to receive callbacks during the connection process. Useful for programmatic configuration.
        connectController.addInterceptor(new FacebookAfterConnectInterceptor());
        connectController.addInterceptor(new TwitterAfterConnectInterceptor());

        connectController.setApplicationUrl(environment.getProperty("project.url"));
        return connectController;
    }

    @Bean
    public SimpleSignInAdapter simpleSignInAdapter(RequestCache requestCache,
            AfterLoginSuccessHandler loginSuccess) {
        SimpleSignInAdapter signIn = new SimpleSignInAdapter(requestCache, loginSuccess);
        return signIn;
    }

    @Bean
    public ProviderSignInController providerSignInController(RequestCache requestCache) {
        ProviderSignInController controller = new ProviderSignInController(connectionFactoryLocator(),
                usersConnectionRepository(), new SimpleSignInAdapter(requestCache, loginSuccess));
        return controller;
    }
}