SocialConfig.java

package com.chughes.dip.user;

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

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.PropertySource;
import org.springframework.context.annotation.PropertySources;
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.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.ProviderSignInController;
import org.springframework.social.connect.web.SignInAdapter;
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.google.api.Google;
import org.springframework.social.google.api.impl.GoogleTemplate;
import org.springframework.social.google.connect.GoogleConnectionFactory;
import org.springframework.social.facebook.web.CanvasSignInController;
import org.springframework.web.client.RestTemplate;

import com.chughes.dip.data.UserRepository;

@Configuration
@PropertySources(value = {@PropertySource("classpath:application.properties")})
public class SocialConfig {
	
    @Autowired
    private Environment environment;
	
	@Bean
	public ConnectionFactoryLocator connectionFactoryLocator() {
	    ConnectionFactoryRegistry registry = new ConnectionFactoryRegistry();
	    registry.addConnectionFactory(new FacebookConnectionFactory(environment.getProperty("facebook.clientId"),environment.getProperty("facebook.clientSecret")));
        GoogleConnectionFactory google = new GoogleConnectionFactory(environment.getProperty("google.clientId"),environment.getProperty("google.clientSecret"));
        google.setScope("https://www.googleapis.com/auth/plus.login");
	    registry.addConnectionFactory(google);
	    return registry;
	}
	
	@Bean
	public UsersConnectionRepository usersConnectionRepository() {
	    JdbcUsersConnectionRepository repository = new JdbcUsersConnectionRepository(dataSource, 
	        connectionFactoryLocator(), Encryptors.noOpText());
	    repository.setConnectionSignUp(new SimpleConnectionSignUp(user));
	    return repository;
	}
	
	@Inject
	private UserRepository user;
	
	@Bean
	@Scope(value="request", proxyMode=ScopedProxyMode.INTERFACES)
	public ConnectionRepository connectionRepository() {
	    Authentication auth = SecurityContextHolder.getContext().getAuthentication();
	    return usersConnectionRepository().createConnectionRepository(((UserDetailsImpl) auth.getPrincipal()).getId()+"");
	}
	
	@Bean
	@Scope(value="request", proxyMode=ScopedProxyMode.INTERFACES)	
	public Facebook facebook() {
	    return connectionRepository().getPrimaryConnection(Facebook.class).getApi();
	}
	
	@Bean
	public Facebook facebookApp() {
		// retrieve app access token
		RestTemplate restTemplate = new RestTemplate();
		String result = restTemplate.getForObject("https://graph.facebook.com/oauth/access_token?grant_type=client_credentials&client_id="+environment.getProperty("facebook.clientId")+"&client_secret="+environment.getProperty("facebook.clientSecret"),  String.class);
		String appAccessToken = result.replaceAll("access_token=", "");
		FacebookTemplate fbt = new FacebookTemplate(appAccessToken);
		return fbt;
	}
	
	@Bean
	@Scope(value="request", proxyMode=ScopedProxyMode.INTERFACES)	
	public Google google() {
        Connection<Google> connection = connectionRepository().findPrimaryConnection(Google.class);
        Google google = connection != null ? connection.getApi() : new GoogleTemplate();
        return google;
	}
	
	@Bean
	public ProviderSignInController providerSignInController() {
	    return new ProviderSignInController(connectionFactoryLocator(), usersConnectionRepository(),
	        new SimpleSignInAdapter(user));
	}
	
//    @Bean
//    public CanvasSignInFix canvasSignInControllerFix() {
//            return new CanvasSignInFix(connectionFactoryLocator(), usersConnectionRepository(), new SimpleSignInAdapter(user), environment.getProperty("facebook.clientId"), environment.getProperty("facebook.clientSecret"), environment.getProperty("facebook.canvasPage"));
//    }
	
	@Inject
	private DataSource dataSource;
}