package net.glowstone.net.handler.login;
import com.flowpowered.networking.MessageHandler;
import net.glowstone.entity.meta.profile.PlayerProfile;
import net.glowstone.net.GlowSession;
import net.glowstone.net.ProxyData;
import net.glowstone.net.message.login.EncryptionKeyRequestMessage;
import net.glowstone.net.message.login.LoginStartMessage;
import net.glowstone.util.SecurityUtils;
import java.nio.charset.StandardCharsets;
import java.util.UUID;
public final class LoginStartHandler implements MessageHandler<GlowSession, LoginStartMessage> {
@Override
public void handle(GlowSession session, LoginStartMessage message) {
final String name = message.getUsername();
if (session.getServer().getOnlineMode()) {
// Get necessary information to create our request message
final String sessionId = session.getSessionId();
final byte[] publicKey = SecurityUtils.generateX509Key(session.getServer().getKeyPair().getPublic()).getEncoded(); //Convert to X509 format
final byte[] verifyToken = SecurityUtils.generateVerifyToken();
// Set verify data on session for use in the response handler
session.setVerifyToken(verifyToken);
session.setVerifyUsername(name);
// Send created request message and wait for the response
session.send(new EncryptionKeyRequestMessage(sessionId, publicKey, verifyToken));
} else {
ProxyData proxy = session.getProxyData();
if (proxy == null) {
UUID uuid = UUID.nameUUIDFromBytes(("OfflinePlayer:" + name).getBytes(StandardCharsets.UTF_8));
session.setPlayer(new PlayerProfile(name, uuid));
} else {
session.setPlayer(proxy.getProfile(name));
}
}
}
}