TwitterHandler.java

/**
 * This file is part of lavagna.
 *
 * lavagna is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * lavagna is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with lavagna.  If not, see <http://www.gnu.org/licenses/>.
 */
package io.lavagna.web.security.login.oauth;

import com.google.gson.annotations.SerializedName;
import io.lavagna.web.security.SecurityConfiguration.SessionHandler;
import io.lavagna.web.security.SecurityConfiguration.Users;
import org.scribe.builder.ServiceBuilder;
import org.scribe.builder.api.TwitterApi;

public class TwitterHandler extends AbstractOAuth1Handler {

    private TwitterHandler(ServiceBuilder serviceBuilder, OAuthRequestBuilder reqBuilder, String apiKey,
			String apiSecret, String callback, Users users, SessionHandler sessionHandler, String errorPage) {
		super("oauth.twitter", "https://api.twitter.com/1.1/account/verify_credentials.json", UserInfo.class,
				"oauth_verifier", users, sessionHandler, errorPage, serviceBuilder.provider(new TwitterApi())
						.apiKey(apiKey).apiSecret(apiSecret).callback(callback).build(), reqBuilder);
	}

	private static class UserInfo implements RemoteUserProfile {

		@SerializedName("screen_name")
		private String screenName;

		@Override
		public boolean valid(Users users, String provider) {
			return users.userExistsAndEnabled(provider, username());
		}

		@Override
		public String username() {
			return screenName;
		}

	}


    public static final OAuthResultHandlerFactory FACTORY = new OAuthResultHandlerFactory.Adapter() {

        @Override
        public OAuthResultHandler build(ServiceBuilder serviceBuilder,
                OAuthRequestBuilder reqBuilder, OAuthProvider provider,
                String callback, Users users, SessionHandler sessionHandler,
                String errorPage) {
            return new TwitterHandler(serviceBuilder, reqBuilder, provider.getApiKey(), provider.getApiSecret(), callback, users, sessionHandler, errorPage);
        }

    };
}