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/*
* Copyright (C) 2021 - 2023 Elytrium
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package net.elytrium.limboauth.command;
import com.j256.ormlite.dao.Dao;
import com.j256.ormlite.stmt.UpdateBuilder;
import com.velocitypowered.api.command.CommandSource;
import com.velocitypowered.api.command.SimpleCommand;
import com.velocitypowered.api.proxy.Player;
import dev.samstevens.totp.qr.QrData;
import dev.samstevens.totp.recovery.RecoveryCodeGenerator;
import dev.samstevens.totp.secret.DefaultSecretGenerator;
import dev.samstevens.totp.secret.SecretGenerator;
import java.net.URLEncoder;
import java.nio.charset.StandardCharsets;
import java.sql.SQLException;
import java.text.MessageFormat;
import net.elytrium.commons.kyori.serialization.Serializer;
import net.elytrium.limboauth.LimboAuth;
import net.elytrium.limboauth.Settings;
import net.elytrium.limboauth.handler.AuthSessionHandler;
import net.elytrium.limboauth.model.RegisteredPlayer;
import net.elytrium.limboauth.model.SQLRuntimeException;
import net.kyori.adventure.text.Component;
import net.kyori.adventure.text.event.ClickEvent;
public class TotpCommand implements SimpleCommand {
private final SecretGenerator secretGenerator = new DefaultSecretGenerator();
private final RecoveryCodeGenerator codesGenerator = new RecoveryCodeGenerator();
private final Dao<RegisteredPlayer, String> playerDao;
private final Component notPlayer;
private final Component usage;
private final boolean needPassword;
private final Component notRegistered;
private final Component wrongPassword;
private final Component alreadyEnabled;
private final Component errorOccurred;
private final Component successful;
private final String issuer;
private final String qrGeneratorUrl;
private final Component qr;
private final String token;
private final int recoveryCodesAmount;
private final String recovery;
private final Component disabled;
private final Component wrong;
private final Component crackedCommand;
public TotpCommand(Dao<RegisteredPlayer, String> playerDao) {
this.playerDao = playerDao;
Serializer serializer = LimboAuth.getSerializer();
this.notPlayer = serializer.deserialize(Settings.IMP.MAIN.STRINGS.NOT_PLAYER);
this.usage = serializer.deserialize(Settings.IMP.MAIN.STRINGS.TOTP_USAGE);
this.needPassword = Settings.IMP.MAIN.TOTP_NEED_PASSWORD;
this.notRegistered = serializer.deserialize(Settings.IMP.MAIN.STRINGS.NOT_REGISTERED);
this.wrongPassword = serializer.deserialize(Settings.IMP.MAIN.STRINGS.WRONG_PASSWORD);
this.alreadyEnabled = serializer.deserialize(Settings.IMP.MAIN.STRINGS.TOTP_ALREADY_ENABLED);
this.errorOccurred = serializer.deserialize(Settings.IMP.MAIN.STRINGS.ERROR_OCCURRED);
this.successful = serializer.deserialize(Settings.IMP.MAIN.STRINGS.TOTP_SUCCESSFUL);
this.issuer = Settings.IMP.MAIN.TOTP_ISSUER;
this.qrGeneratorUrl = Settings.IMP.MAIN.QR_GENERATOR_URL;
this.qr = serializer.deserialize(Settings.IMP.MAIN.STRINGS.TOTP_QR);
this.token = Settings.IMP.MAIN.STRINGS.TOTP_TOKEN;
this.recoveryCodesAmount = Settings.IMP.MAIN.TOTP_RECOVERY_CODES_AMOUNT;
this.recovery = Settings.IMP.MAIN.STRINGS.TOTP_RECOVERY;
this.disabled = serializer.deserialize(Settings.IMP.MAIN.STRINGS.TOTP_DISABLED);
this.wrong = serializer.deserialize(Settings.IMP.MAIN.STRINGS.TOTP_WRONG);
this.crackedCommand = serializer.deserialize(Settings.IMP.MAIN.STRINGS.CRACKED_COMMAND);
}
// TODO: Rewrite.
@Override
public void execute(SimpleCommand.Invocation invocation) {
CommandSource source = invocation.source();
String[] args = invocation.arguments();
if (source instanceof Player) {
if (args.length == 0) {
source.sendMessage(this.usage);
} else {
String username = ((Player) source).getUsername();
RegisteredPlayer playerInfo;
UpdateBuilder<RegisteredPlayer, String> updateBuilder;
if (args[0].equalsIgnoreCase("enable")) {
if (this.needPassword ? args.length == 2 : args.length == 1) {
playerInfo = AuthSessionHandler.fetchInfo(this.playerDao, username);
if (playerInfo == null) {
source.sendMessage(this.notRegistered);
return;
} else if (playerInfo.getHash().isEmpty()) {
source.sendMessage(this.crackedCommand);
return;
} else if (this.needPassword && !AuthSessionHandler.checkPassword(args[1], playerInfo, this.playerDao)) {
source.sendMessage(this.wrongPassword);
return;
}
if (!playerInfo.getTotpToken().isEmpty()) {
source.sendMessage(this.alreadyEnabled);
return;
}
String secret = this.secretGenerator.generate();
try {
updateBuilder = this.playerDao.updateBuilder();
updateBuilder.where().eq(RegisteredPlayer.NICKNAME_FIELD, username);
updateBuilder.updateColumnValue(RegisteredPlayer.TOTP_TOKEN_FIELD, secret);
updateBuilder.update();
} catch (SQLException e) {
source.sendMessage(this.errorOccurred);
throw new SQLRuntimeException(e);
}
source.sendMessage(this.successful);
QrData data = new QrData.Builder()
.label(username)
.secret(secret)
.issuer(this.issuer)
.build();
String qrUrl = this.qrGeneratorUrl.replace("{data}", URLEncoder.encode(data.getUri(), StandardCharsets.UTF_8));
source.sendMessage(this.qr.clickEvent(ClickEvent.openUrl(qrUrl)));
Serializer serializer = LimboAuth.getSerializer();
source.sendMessage(serializer.deserialize(MessageFormat.format(this.token, secret))
.clickEvent(ClickEvent.copyToClipboard(secret)));
String codes = String.join(", ", this.codesGenerator.generateCodes(this.recoveryCodesAmount));
source.sendMessage(serializer.deserialize(MessageFormat.format(this.recovery, codes))
.clickEvent(ClickEvent.copyToClipboard(codes)));
} else {
source.sendMessage(this.usage);
}
} else if (args[0].equalsIgnoreCase("disable")) {
if (args.length == 2) {
playerInfo = AuthSessionHandler.fetchInfo(this.playerDao, username);
if (playerInfo == null) {
source.sendMessage(this.notRegistered);
return;
}
if (AuthSessionHandler.getTotpCodeVerifier().isValidCode(playerInfo.getTotpToken(), args[1])) {
try {
updateBuilder = this.playerDao.updateBuilder();
updateBuilder.where().eq(RegisteredPlayer.NICKNAME_FIELD, username);
updateBuilder.updateColumnValue(RegisteredPlayer.TOTP_TOKEN_FIELD, "");
updateBuilder.update();
source.sendMessage(this.disabled);
} catch (SQLException e) {
source.sendMessage(this.errorOccurred);
throw new SQLRuntimeException(e);
}
} else {
source.sendMessage(this.wrong);
}
} else {
source.sendMessage(this.usage);
}
} else {
source.sendMessage(this.usage);
}
}
} else {
source.sendMessage(this.notPlayer);
}
}
@Override
public boolean hasPermission(SimpleCommand.Invocation invocation) {
return Settings.IMP.MAIN.COMMAND_PERMISSION_STATE.TOTP
.hasPermission(invocation.source(), "limboauth.commands.totp");
}
}
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