public void ClubNameCheckReq(GameSession session, ClubNameCheckReqMessage message)
{
var plr = session.Player;
if (plr == null)
{
return;
}
var ascii = Config.Instance.Game.NickRestrictions.AsciiOnly;
if (!Namecheck.IsNameValid(message.Name, true) ||
ascii && message.Name.Any(c => c > 127) ||
!ascii && message.Name.Any(c => c > 255))
{
session.SendAsync(new NickCheckAckMessage(true));
return;
}
if (GameServer.Instance.ClubManager.Any(c => c.ClanName == message.Name))
{
session.SendAsync(new ClubNameCheckAckMessage(2));
return;
}
session.SendAsync(new ClubNameCheckAckMessage(0));
}
public async Task CheckNickHandler(GameSession session, NickCheckReqMessage message)
{
var plr = session.Player;
if (plr == null)
{
return;
}
var ascii = Config.Instance.Game.NickRestrictions.AsciiOnly;
if (!await AuthService.IsNickAvailableAsync(message.Nickname))
{
await plr.Session.SendAsync(new ServerResultAckMessage(ServerResult.NicknameUnavailable));
}
if (!Namecheck.IsNameValid(message.Nickname, true) || ascii && message.Nickname.Any(c => c > 127) ||
!ascii && message.Nickname.Any(c => c > 255))
{
await session.SendAsync(new NickCheckAckMessage(true));
return;
}
await session.SendAsync(new NickCheckAckMessage(false));
}
public async Task UseChangeNameItem(GameSession session, ItemUseChangeNickReqMessage message)
{
var plr = session.Player;
var item = plr.Inventory[message.ItemId];
var ascii = Config.Instance.Game.NickRestrictions.AsciiOnly;
if (!await AuthService.IsNickAvailableAsync(message.Nickname))
{
await plr.Session.SendAsync(new ServerResultAckMessage(ServerResult.NicknameUnavailable));
}
if (!Namecheck.IsNameValid(message.Nickname, true) || ascii && message.Nickname.Any(c => c > 127) ||
!ascii && message.Nickname.Any(c => c > 255))
{
await session.SendAsync(new NickCheckAckMessage(true));
return;
}
var nickname = new NicknameHistoryDto
{
AccountId = (int)plr.Account.Id,
OldName = plr.Account.Nickname,
NewNickname = message.Nickname
};
switch (item.ItemNumber)
{
case 4000001: //Perm Change
nickname.ExpireDate = -1;
if (await ChangeNickname(session.Player, nickname, false))
{
plr.Inventory.RemoveOrDecrease(item);
}
break;
default:
await session.SendAsync(new ServerResultAckMessage(ServerResult.FailedToRequestTask));
return;
}
}
public async Task ClubCreateReq2(GameSession session, ClubCreateReq2Message message)
{
var plr = session.Player;
if (plr == null)
{
return;
}
var ascii = Config.Instance.Game.NickRestrictions.AsciiOnly;
if (GameServer.Instance.ClubManager.Any(c =>
c.ClanName == message.Name || c.Players.ContainsKey(plr.Account.Id)) ||
!Namecheck.IsNameValid(message.Name, true) ||
ascii && message.Name.Any(c => c > 127) ||
!ascii && message.Name.Any(c => c > 255))
{
Logger.ForAccount(plr).Information($"Couldnt create Clan : {message.Name}");
await session.SendAsync(new ClubCreateAck2Message(1));
}
else
{
var clubDto = new ClubDto
{
Name = message.Name,
Icon = ""
};
using (var db = GameDatabase.Open())
{
try
{
using (var transaction = DbUtil.BeginTransaction(db))
{
await DbUtil.InsertAsync(db, clubDto,
statement => statement.AttachToTransaction(transaction));
var clubPlayerInfo = new ClubPlayerInfo
{
AccountId = session.Player.Account.Id,
Account = session.Player.Account.AccountDto,
State = ClubState.Joined,
Rank = ClubRank.Master
};
var club = new Club(clubDto, new[] { clubPlayerInfo });
GameServer.Instance.ClubManager.Add(club);
transaction.Commit();
var clubplrdto = new ClubPlayerDto
{
PlayerId = (int)session.Player.Account.Id,
ClubId = club.Id,
Rank = (byte)ClubRank.Master,
State = (int)ClubState.Joined
};
await DbUtil.InsertAsync(db, clubplrdto);
session.Player.Club = club;
}
}
catch (Exception ex)
{
Logger.Error(ex.ToString());
await session.SendAsync(new ClubCreateAck2Message(1));
return;
}
await session.SendAsync(new ClubCreateAck2Message(0));
await session.SendAsync(new ClubMyInfoAckMessage(plr.Map <Player, ClubMyInfoDto>()));
Club.LogOn(plr);
}
}
}
public async Task EULoginHandler(ProudSession session, LoginEUReqMessage message)
{
var ip = session.RemoteEndPoint.Address.ToString();
var account = new AccountDto();
using (var db = AuthDatabase.Open())
{
if (message.Username != "" && message.Password != "")
{
Logger.Information($"Login from {ip}");
if (message.Username.Length > 5 && message.Password.Length > 5)
{
if (!Namecheck.IsNameValid(message.Username))
{
await session.SendAsync(new LoginEUAckMessage(AuthLoginResult.WrongIdorPw));
Logger.Error("Wrong login for {ip}", ip);
return;
}
var result = db.Find <AccountDto>(statement => statement
.Where($"{nameof(AccountDto.Username):C} = @{nameof(message.Username)}")
.Include <BanDto>(join => join.LeftOuterJoin())
.WithParameters(new { message.Username }));
account = result.FirstOrDefault();
if (account == null && (Config.Instance.NoobMode || Config.Instance.AutoRegister))
{
account = new AccountDto {
Username = message.Username
};
var newSalt = new byte[24];
using (var csprng = new RNGCryptoServiceProvider())
{
csprng.GetBytes(newSalt);
}
var hash = new Rfc2898DeriveBytes(message.Password, newSalt, 24000).GetBytes(24);
account.Password = Convert.ToBase64String(hash);
account.Salt = Convert.ToBase64String(newSalt);
await db.InsertAsync(account);
}
var salt = Convert.FromBase64String(account?.Salt ?? "");
var passwordGuess = new Rfc2898DeriveBytes(message.Password, salt, 24000).GetBytes(24);
var actualPassword = Convert.FromBase64String(account?.Password ?? "");
var difference = (uint)passwordGuess.Length ^ (uint)actualPassword.Length;
for (var i = 0;
i < passwordGuess.Length && i < actualPassword.Length;
i++)
{
difference |= (uint)(passwordGuess[i] ^ actualPassword[i]);
}
if ((difference != 0 ||
string.IsNullOrWhiteSpace(account?.Password ?? "")) &&
!Config.Instance.NoobMode)
{
await session.SendAsync(new LoginEUAckMessage(AuthLoginResult.WrongIdorPw));
Logger.Error("Wrong login for {ip}", ip);
return;
}
if (account != null)
{
account.AuthToken = "";
account.newToken = "";
await db.UpdateAsync(account);
}
}
else
{
await session.SendAsync(new LoginEUAckMessage(AuthLoginResult.WrongIdorPw));
Logger.Error("Wrong login for {ip}", ip);
return;
}
}
else if (message.token != "")
{
Logger.Information($"Login from {ip}");
var result = await db.FindAsync <AccountDto>(statement => statement
.Where($"{nameof(AccountDto.LoginToken):C} = @{nameof(message.token)}")
.Include <BanDto>(join => join.LeftOuterJoin())
.WithParameters(new { message.token }));
account = result.FirstOrDefault();
if (account != null)
{
var lastlogin = DateTimeOffset.ParseExact(account.LastLogin, "yyyyMMddHHmmss", CultureInfo.InvariantCulture,
DateTimeStyles.None);
if ((DateTimeOffset.Now - lastlogin).Minutes >= 5)
{
await session.SendAsync(new LoginEUAckMessage(AuthLoginResult.Failed2));
Logger.Error("Wrong login for {ip}", ip);
return;
}
}
else
{
await session.SendAsync(new LoginEUAckMessage(AuthLoginResult.Failed2));
Logger.Error("Wrong login for {ip}", ip);
return;
}
}
else if (message.AuthToken != "" && message.NewToken != "")
{
Logger.Information("Session login from {ip}", ip);
var result = await db.FindAsync <AccountDto>(statement => statement
.Where($"{nameof(AccountDto.AuthToken):C} = @{nameof(message.AuthToken)}")
.Include <BanDto>(join => join.LeftOuterJoin())
.WithParameters(new { message.AuthToken }));
account = result.FirstOrDefault();
if (account != null)
{
if (account.AuthToken != message.AuthToken && account.newToken != message.NewToken)
{
await session.SendAsync(new LoginEUAckMessage(AuthLoginResult.Failed2));
Logger.Error("Wrong session login for {ip} ({AuthToken}, {newToken})", ip,
account.AuthToken, account.newToken);
return;
}
}
else
{
await session.SendAsync(new LoginEUAckMessage(AuthLoginResult.Failed2));
Logger.Error("Wrong session login for {ip}", ip);
return;
}
}
if (account == null)
{
return;
}
var now = DateTimeOffset.Now.ToUnixTimeSeconds();
var ban = account.Bans.FirstOrDefault(b => b.Date + (b.Duration ?? 0) > now);
if (ban != null)
{
var unbanDate = DateTimeOffset.FromUnixTimeSeconds(ban.Date + (ban.Duration ?? 0));
Logger.Error("{user} is banned until {until}", account.Username, unbanDate);
await session.SendAsync(new LoginEUAckMessage(unbanDate));
return;
}
Logger.Information("Login success for {user}", account.Username);
var entry = new LoginHistoryDto
{
AccountId = account.Id,
Date = DateTimeOffset.Now.ToUnixTimeSeconds(),
IP = ip
};
await db.InsertAsync(entry);
}
var datetime = $"{DateTimeOffset.UtcNow:yyyyMMddHHmmss}";
var sessionId = Hash.GetUInt32 <CRC32>($"<{account.Username}+{account.Password}>");
var authsessionId = Hash.GetString <CRC32>($"<{account.Username}+{sessionId}+{datetime}>");
var newsessionId = Hash.GetString <CRC32>($"<{authsessionId}+{sessionId}>");
using (var db = AuthDatabase.Open())
{
account.LastLogin = $"{DateTimeOffset.UtcNow:yyyyMMddHHmmss}";
account.LoginToken = "";
account.AuthToken = authsessionId;
account.newToken = newsessionId;
await db.UpdateAsync(account);
}
await session.SendAsync(new LoginEUAckMessage(AuthLoginResult.OK, (ulong)account.Id, sessionId, authsessionId,
newsessionId, datetime));
}
private static async Task LoginAsync(IChannelHandlerContext context, string username, string password,
string hwid, string secretkey)
{
// This var is used for sending the unban date to the launcher
var unbandate = DateTimeOffset.Now;
try
{
var endpoint = new IPEndPoint(((IPEndPoint)context.Channel.RemoteAddress).Address.MapToIPv4(),
((IPEndPoint)context.Channel.RemoteAddress).Port);
if (username.Length >= 20)
{
Logger.Error("Login & Password to long for {0}", endpoint);
var check = new CCMessage();
check.Write(false);
check.Write("Username is more than 20 chars");
RmiSend(context, 16, check);
return;
}
if (hwid == string.Empty)
{
Logger.Error("No HWID found on endpoint {0}", endpoint);
var check = new CCMessage();
check.Write(false);
check.Write("Cannot Generate HWID");
RmiSend(context, 16, check);
return;
}
if (Config.Instance.AuthAPI.BlockedHWIDS.Contains(hwid))
{
Logger.Error("Hwid ban(conf): {0}, Address: {1}", hwid, endpoint);
goto hwidban;
}
if (Config.Instance.LauncherCheck)
{
// Launcher Check
if (secretkey != Config.Instance.LauncherCheckKey)
{
Logger.Error("Wrong Launcher => User: "******" hwid: " + hwid + " from " + endpoint);
var keycheck = new CCMessage();
keycheck.Write(false);
keycheck.Write("Invalid Launcher");
RmiSend(context, 16, keycheck);
return;
}
}
using (var db = AuthDatabase.Open())
{
Logger.Information("AuthAPI login from {0}, HWID: {1}", endpoint, hwid);
if (username.Length < 4 || password.Length < 4)
{
Logger.Error("Too short credentials for {username} / {endpoint}", username, endpoint);
var lengtherr = new CCMessage();
lengtherr.Write(false);
lengtherr.Write("Invalid length of username/password");
RmiSend(context, 16, lengtherr);
return;
}
if (!Namecheck.IsNameValid(username))
{
Logger.Error("Invalid username for {username} / {endpoint}", username, endpoint);
var nickerr = new CCMessage();
nickerr.Write(false);
nickerr.Write("Username contains invalid characters");
RmiSend(context, 16, nickerr);
return;
}
var result = await db.FindAsync <AccountDto>(statement => statement
.Where($"{nameof(AccountDto.Username):C} = @{nameof(username)}")
.Include <BanDto>(join => join.LeftOuterJoin())
.WithParameters(new { Username = username }));
var account = result.FirstOrDefault();
var hwidResult = await db.FindAsync <HwidBanDto>(statement => statement
.Where($"{nameof(HwidBanDto.Hwid):C} = @{nameof(hwid)}")
.WithParameters(new { Hwid = hwid }));
if (hwidResult?.Any() ?? false)
{
Logger.Error("Hwid ban(db): {0}, Address: {1}", hwid, endpoint);
goto hwidban;
}
if (account == null &&
(Config.Instance.NoobMode || Config.Instance.AutoRegister))
{
account = new AccountDto {
Username = username
};
var newSalt = new byte[24];
using (var csprng = new RNGCryptoServiceProvider())
{
csprng.GetBytes(newSalt);
}
var hash = new byte[24];
using (var pbkdf2 = new Rfc2898DeriveBytes(password, newSalt, 24000))
{
hash = pbkdf2.GetBytes(24);
}
account.Password = Convert.ToBase64String(hash);
account.Salt = Convert.ToBase64String(newSalt);
await db.InsertAsync(account);
}
var salt = Convert.FromBase64String(account?.Salt ?? "");
var passwordGuess =
new Rfc2898DeriveBytes(password, salt, 24000).GetBytes(24);
var actualPassword =
Convert.FromBase64String(account?.Password ?? "");
var difference =
(uint)passwordGuess.Length ^ (uint)actualPassword.Length;
for (var i = 0;
i < passwordGuess.Length && i < actualPassword.Length;
i++)
{
difference |= (uint)(passwordGuess[i] ^ actualPassword[i]);
}
if ((difference != 0 ||
string.IsNullOrWhiteSpace(account?.Password ?? "")) &&
!Config.Instance.NoobMode)
{
Logger.Error("Wrong credentials for {username} / {endpoint}", username, endpoint);
goto wrong;
}
if (account != null)
{
var now = DateTimeOffset.Now.ToUnixTimeSeconds();
var ban = account.Bans.FirstOrDefault(b => b.Date + (b.Duration ?? 0) > now);
if (ban != null)
{
var unbanDate = DateTimeOffset.FromUnixTimeSeconds(ban.Date + (ban.Duration ?? 0));
unbandate = DateTimeOffset.FromUnixTimeSeconds(ban.Date + (ban.Duration ?? 0));
Logger.Error("{user} is banned until {until}", account.Username, unbanDate);
goto ban;
}
account.LoginToken = AuthHash
.GetHash256(
$"{context.Channel.RemoteAddress}-{account.Username}-{account.Password}-{endpoint.Address.MapToIPv4()}")
.ToLower();
account.LastLogin = $"{DateTimeOffset.UtcNow:yyyyMMddHHmmss}";
account.AuthToken = string.Empty;
account.newToken = string.Empty;
await db.UpdateAsync(account);
var history = new AuthHistoryDto
{
Account = account,
AccountId = account.Id,
Date = DateTimeOffset.Now.ToUnixTimeSeconds(),
HWID = hwid
};
await db.InsertAsync(history);
var ack = new CCMessage();
ack.Write(true);
ack.Write(account.LoginToken);
RmiSend(context, 16, ack);
}
Logger.Information("AuthAPI login success for {username}", username);
return;
}
}
catch (Exception e)
{
Logger.Error(e.ToString());
goto error;
}
wrong:
{
var error = new CCMessage();
error.Write(false);
error.Write("Invalid username or password");
RmiSend(context, 16, error);
}
error:
{
var error = new CCMessage();
error.Write(false);
error.Write("Login error");
RmiSend(context, 16, error);
}
ban:
{
var error = new CCMessage();
error.Write(false);
error.Write("Account is banned until " + unbandate);
RmiSend(context, 16, error);
}
hwidban:
{
var error = new CCMessage();
error.Write(false);
error.Write("You have been blocked");
RmiSend(context, 16, error);
}
}
public override void ChannelRead(IChannelHandlerContext context, object messageData)
{
var buffer = messageData as IByteBuffer;
var data = new byte[0];
if (buffer != null)
{
data = buffer.ToArray();
}
var msg = new CCMessage(data, data.Length);
short magic = 0;
var message = new ByteArray();
if (msg.Read(ref magic) &&
magic == Magic &&
msg.Read(ref message))
{
var receivedMessage = new CCMessage(message);
CCMessage.MessageType coreId = 0;
if (!receivedMessage.Read(ref coreId))
{
return;
}
switch (coreId)
{
case CCMessage.MessageType.Rmi:
short rmiId = 0;
if (receivedMessage.Read(ref rmiId))
{
switch (rmiId)
{
case 15:
{
var username = "";
var password = "";
var register = false;
if (receivedMessage.Read(ref username) &&
receivedMessage.Read(ref password) &&
receivedMessage.Read(ref register))
{
using (var db = AuthDatabase.Open())
{
Logger.Information("Authentication login from {endpoint}",
context.Channel.RemoteAddress.ToString());
if (username.Length > 5 && password.Length > 5 && Namecheck.IsNameValid(username))
{
var result = db.Find <AccountDto>(statement => statement
.Where($"{nameof(AccountDto.Username):C} = @{nameof(username)}")
.Include <BanDto>(join => @join.LeftOuterJoin())
.WithParameters(new { Username = username }));
var account = result.FirstOrDefault();
if (account == null &&
(Config.Instance.NoobMode || Config.Instance.AutoRegister))
{
account = new AccountDto {
Username = username
};
var newSalt = new byte[24];
using (var csprng = new RNGCryptoServiceProvider())
{
csprng.GetBytes(newSalt);
}
var hash = new Rfc2898DeriveBytes(password, newSalt, 24000).GetBytes(24);
account.Password = Convert.ToBase64String(hash);
account.Salt = Convert.ToBase64String(newSalt);
db.InsertAsync(account);
}
var salt = Convert.FromBase64String(account?.Salt ?? "");
var passwordGuess = new Rfc2898DeriveBytes(password, salt, 24000).GetBytes(24);
var actualPassword = Convert.FromBase64String(account?.Password ?? "");
var difference =
(uint)passwordGuess.Length ^ (uint)actualPassword.Length;
for (var i = 0;
i < passwordGuess.Length && i < actualPassword.Length;
i++)
{
difference |= (uint)(passwordGuess[i] ^ actualPassword[i]);
}
if ((difference != 0 ||
string.IsNullOrWhiteSpace(account?.Password ?? "")) &&
!Config.Instance.NoobMode)
{
Logger.Error(
"Wrong authentication credentials for {username} / {endpoint}",
username, context.Channel.RemoteAddress.ToString());
var ack = new CCMessage();
ack.Write(false);
ack.Write("Login failed");
RmiSend(context, 16, ack);
}
else
{
if (account != null)
{
account.LoginToken = AuthHash
.GetHash256(
$"{context.Channel.RemoteAddress}-{account.Username}-{account.Password}")
.ToLower();
account.LastLogin = $"{DateTimeOffset.UtcNow:yyyyMMddHHmmss}";
account.AuthToken = "";
account.newToken = "";
db.UpdateAsync(account);
var ack = new CCMessage();
ack.Write(true);
ack.Write(account.LoginToken);
RmiSend(context, 16, ack);
}
Logger.Information("Authentication success for {username}",
username);
}
}
else
{
Logger.Error(
"Wrong authentication credentials for {username} / {endpoint}",
username, context.Channel.RemoteAddress.ToString());
var ack = new CCMessage();
ack.Write(false);
ack.Write("Invalid length of username/password");
RmiSend(context, 16, ack);
}
}
}
else
{
Logger.Error("Wrong login for {endpoint}",
context.Channel.RemoteAddress.ToString());
var ack = new CCMessage();
ack.Write(false);
ack.Write("Invalid loginpacket");
RmiSend(context, 16, ack);
}
break;
}
case 17:
context.CloseAsync();
break;
default:
Logger.Error("Received unknown rmiId{rmi} from {endpoint}", rmiId,
context.Channel.RemoteAddress.ToString());
break;
}
}
break;
case CCMessage.MessageType.Notify:
context.CloseAsync();
break;
default:
Logger.Error("Received unknown coreID{coreid} from {endpoint}", coreId,
context.Channel.RemoteAddress.ToString());
break;
}
}
else
{
Logger.Error("Received invalid packetstruct from {endpoint}", context.Channel.RemoteAddress.ToString());
context.CloseAsync();
}
}
private static async void LoginAsync(IChannelHandlerContext context, string username, string password, string hwid, string test)
{
lock (_loginSync)
{
try
{
using (var db = AuthDatabase.Open())
{
Logger.Information("Authentication login from {endpoint}",
context.Channel.RemoteAddress.ToString());
if (test != "test")
goto loginerror;
var hwidban = db.Find<HwidBanDto>(statement => statement
.Where(
$"{nameof(HwidBanDto.Hwid):C} = @{nameof(hwid)}")
.WithParameters(new { hwid }));
if (hwidban.Any())
{
Logger.Error("Hwid ban {0} for {1}", hwid, context.Channel.RemoteAddress);
goto HwidBan;
}
if (username.Length > 5 && password.Length > 5 &&
Namecheck.IsNameValid(username))
{
var result = db.Find<AccountDto>(statement => statement
.Where(
$"{nameof(AccountDto.Username):C} = @{nameof(username)}")
.WithParameters(new { Username = username }));
var account = result.FirstOrDefault();
if (account == null &&
(Config.Instance.NoobMode || Config.Instance.AutoRegister))
{
account = new AccountDto { Username = username };
var newSalt = new byte[24];
using (var csprng = new RNGCryptoServiceProvider())
{
csprng.GetBytes(newSalt);
}
var hash = new byte[24];
using (var pbkdf2 = new Rfc2898DeriveBytes(password, newSalt, 24000))
{
hash = pbkdf2.GetBytes(24);
}
account.Password = Convert.ToBase64String(hash);
account.Salt = Convert.ToBase64String(newSalt);
db.InsertAsync(account);
}
var ban = db.Find<BanDto>(statement => statement
.Where($"{nameof(BanDto.AccountId):C} = @{nameof(account.Id)}")
.WithParameters(new { account.Id })).FirstOrDefault();
if (ban != null)
{
var unbanDate = DateTimeOffset.FromUnixTimeSeconds(ban.Date + (ban.Duration ?? 0));
Logger.Error("{user} is banned until {until}", account.Username, unbanDate);
CCMessage error = new CCMessage();
error.Write(false);
error.Write("You ban until " + unbanDate);
RmiSend(context, 16, error);
}
var salt = Convert.FromBase64String(account?.Salt ?? "");
var passwordGuess =
new Rfc2898DeriveBytes(password, salt, 24000).GetBytes(24);
var actualPassword =
Convert.FromBase64String(account?.Password ?? "");
var difference =
(uint)passwordGuess.Length ^ (uint)actualPassword.Length;
for (var i = 0;
i < passwordGuess.Length && i < actualPassword.Length;
i++)
difference |= (uint)(passwordGuess[i] ^ actualPassword[i]);
if ((difference != 0 ||
string.IsNullOrWhiteSpace(account?.Password ?? "")) &&
!Config.Instance.NoobMode)
{
Logger.Error(
"Wrong authentication credentials for {username} / {endpoint}",
username, context.Channel.RemoteAddress.ToString());
var ack = new CCMessage();
ack.Write(false);
ack.Write("Login failed");
RmiSend(context, 16, ack);
}
else
{
if (account != null)
{
account.LoginToken = AuthHash
.GetHash256(
$"{context.Channel.RemoteAddress}-{account.Username}-{account.Password}")
.ToLower();
account.LastLogin =
$"{DateTimeOffset.UtcNow:yyyyMMddHHmmss}";
account.AuthToken = "";
account.newToken = "";
db.UpdateAsync(account);
var ack = new CCMessage();
ack.Write(true);
ack.Write(account.LoginToken);
RmiSend(context, 16, ack);
}
var authhistory = new AuthHistoryDto()
{
AccountId = account.Id,
Date = DateTime.UtcNow.ToString(),
HWID = hwid
};
db.Insert(authhistory);
Logger.Information("Authentication success for {username}",
username);
if (account.LoginToken != "" && account.LoginToken.Length == 64)
{
account.IsConnect = true;
db.Update(account);
}
}
}
else
{
Logger.Error(
"Wrong authentication credentials for {username} / {endpoint}",
username, context.Channel.RemoteAddress.ToString());
var ack = new CCMessage();
ack.Write(false);
ack.Write("Invalid length of username/password");
RmiSend(context, 16, ack);
}
}
}
catch (Exception e)
{
Logger.Error(e.ToString());
var ack = new CCMessage();
ack.Write(false);
ack.Write("Login Error");
RmiSend(context, 16, ack);
}
HwidBan:
{
var error = new CCMessage();
error.Write(false);
error.Write("You Banned.");
RmiSend(context, 16, error);
return;
}
loginerror:
{
var error = new CCMessage();
error.Write(false);
error.Write("Failed to login.");
RmiSend(context, 16, error);
return;
}
}
}
public static async Task <bool> IsNickAvailableAsync(string nickname)
{
var minLength = Config.Instance.Game.NickRestrictions.MinLength;
var maxLength = Config.Instance.Game.NickRestrictions.MaxLength;
var whitespace = Config.Instance.Game.NickRestrictions.WhitespaceAllowed;
var ascii = Config.Instance.Game.NickRestrictions.AsciiOnly;
if (ascii)
{
if (nickname.Any(c => c > 127))
{
return(false);
}
}
else
{
if (nickname.Any(c => c > 255))
{
return(false);
}
}
if (!Namecheck.IsNameValid(nickname))
{
return(false);
}
if (nickname.Length < minLength || nickname.Length > maxLength ||
ascii && Encoding.UTF8.GetByteCount(nickname) != nickname.Length)
{
return(false);
}
// check for repeating chars example: (AAAHello, HeLLLLo)
var maxRepeat = Config.Instance.Game.NickRestrictions.MaxRepeat;
if (maxRepeat > 0)
{
var counter = 1;
var current = nickname[0];
for (var i = 1; i < nickname.Length; i++)
{
if (current != nickname[i])
{
if (counter > maxRepeat)
{
return(false);
}
counter = 0;
current = nickname[i];
}
counter++;
}
}
var now = DateTimeOffset.Now.ToUnixTimeSeconds();
using (var db = AuthDatabase.Open())
{
var nickExists = (await DbUtil.FindAsync <AccountDto>(db, statement => statement
.Where($"{nameof(AccountDto.Nickname):C} = @{nameof(nickname)}")
.WithParameters(new { nickname })))
.Any();
var nickReserved = (await DbUtil.FindAsync <NicknameHistoryDto>(db, statement => statement
.Where(
$"{nameof(NicknameHistoryDto.OldName):C} = @{nameof(nickname)} AND ({nameof(NicknameHistoryDto.ExpireDate):C} = -1 OR {nameof(NicknameHistoryDto.ExpireDate):C} > @{nameof(now)})")
.WithParameters(new { nickname, now })))
.Any();
return(!nickExists && !nickReserved);
}
}
