net.technicpack.minecraftcore.mojang.auth.AuthenticationService.java Source code

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Here is the source code for net.technicpack.minecraftcore.mojang.auth.AuthenticationService.java

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/*
 * This file is part of Technic Minecraft Core.
 * Copyright 2015 Syndicate, LLC
 *
 * Technic Minecraft Core is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Technic Minecraft Core 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,
 * as well as a copy of the GNU Lesser General Public License,
 * along with Technic Minecraft Core.  If not, see <http://www.gnu.org/licenses/>.
 */

package net.technicpack.minecraftcore.mojang.auth;

import com.google.common.base.Charsets;
import net.technicpack.launchercore.auth.IAuthResponse;
import net.technicpack.launchercore.auth.IGameAuthService;
import net.technicpack.launchercore.exception.AuthenticationNetworkFailureException;
import net.technicpack.minecraftcore.MojangUtils;
import net.technicpack.minecraftcore.mojang.auth.io.Agent;
import net.technicpack.minecraftcore.mojang.auth.request.AuthRequest;
import net.technicpack.minecraftcore.mojang.auth.request.RefreshRequest;
import net.technicpack.minecraftcore.mojang.auth.response.AuthResponse;
import org.apache.commons.io.IOUtils;

import java.io.DataOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;

public class AuthenticationService implements IGameAuthService<MojangUser> {
    private static final String AUTH_SERVER = "https://authserver.mojang.com/";

    public AuthResponse requestRefresh(MojangUser mojangUser) throws AuthenticationNetworkFailureException {
        RefreshRequest refreshRequest = new RefreshRequest(mojangUser.getAccessToken(),
                mojangUser.getClientToken());
        String data = MojangUtils.getGson().toJson(refreshRequest);

        AuthResponse response;
        try {
            String returned = postJson(AUTH_SERVER + "refresh", data);
            response = MojangUtils.getGson().fromJson(returned, AuthResponse.class);
        } catch (IOException e) {
            throw new AuthenticationNetworkFailureException("authserver.mojang.com", e);
        }

        return response;
    }

    private String postJson(String url, String data) throws IOException {
        byte[] rawData = data.getBytes("UTF-8");
        HttpURLConnection connection = (HttpURLConnection) new URL(url).openConnection();
        connection.setUseCaches(false);
        connection.setDoOutput(true);
        connection.setDoInput(true);
        connection.setConnectTimeout(15000);
        connection.setReadTimeout(15000);
        connection.setRequestMethod("POST");
        connection.setRequestProperty("Content-Type", "application/json; charset=utf-8");
        connection.setRequestProperty("Content-Length", rawData.length + "");
        connection.setRequestProperty("Content-Language", "en-US");

        DataOutputStream writer = new DataOutputStream(connection.getOutputStream());
        writer.write(rawData);
        writer.flush();
        writer.close();

        InputStream stream = null;
        String returnable = null;
        try {
            stream = connection.getInputStream();
            returnable = IOUtils.toString(stream, Charsets.UTF_8);
        } catch (IOException e) {
            stream = connection.getErrorStream();

            if (stream == null) {
                throw e;
            }
        } finally {
            try {
                if (stream != null)
                    stream.close();
            } catch (IOException e) {
            }
        }

        return returnable;
    }

    public AuthResponse requestLogin(String username, String password, String clientToken)
            throws AuthenticationNetworkFailureException {
        Agent agent = new Agent("Minecraft", "1");

        AuthRequest request = new AuthRequest(agent, username, password, clientToken);
        String data = MojangUtils.getGson().toJson(request);

        AuthResponse response;
        try {
            String returned = postJson(AUTH_SERVER + "authenticate", data);
            response = MojangUtils.getGson().fromJson(returned, AuthResponse.class);
        } catch (IOException e) {
            throw new AuthenticationNetworkFailureException("authserver.mojang.com", e);
        }
        return response;
    }

    public MojangUser createClearedUser(String username, IAuthResponse response) {
        return new MojangUser(username, (AuthResponse) response);
    }

    public MojangUser createOfflineUser(String displayName) {
        return new MojangUser(displayName);
    }
}