/// <summary>
/// A cityserver logged in!
/// </summary>
public static void HandleCityServerLogin(NetworkClient Client, ProcessedPacket P)
{
Logger.LogInfo("CityServer logged in!\r\n");
string Name = P.ReadString();
string Description = P.ReadString();
string IP = P.ReadString();
int Port = P.ReadInt32();
CityInfoStatus Status = (CityInfoStatus)P.ReadByte();
ulong Thumbnail = P.ReadUInt64();
string UUID = P.ReadString();
ulong Map = P.ReadUInt64();
CityInfo Info = new CityInfo(true);
Info.Name = Name;
Info.Description = Description;
Info.IP = IP;
Info.Port = Port;
Info.Status = Status;
Info.Thumbnail = Thumbnail;
Info.UUID = UUID;
Info.Map = Map;
Info.Client = Client;
Info.Online = true;
NetworkFacade.CServerListener.CityServers.Add(Info);
NetworkFacade.CServerListener.PotentialLogins.TryTake(out Client);
NetworkClient[] Clients = new NetworkClient[NetworkFacade.ClientListener.Clients.Count];
NetworkFacade.ClientListener.Clients.CopyTo(Clients, 0);
PacketStream ClientPacket = new PacketStream((byte)PacketType.NEW_CITY_SERVER, 0);
ClientPacket.WriteString(Name);
ClientPacket.WriteString(Description);
ClientPacket.WriteString(IP);
ClientPacket.WriteInt32(Port);
ClientPacket.WriteByte((byte)Status);
ClientPacket.WriteUInt64(Thumbnail);
ClientPacket.WriteString(UUID);
ClientPacket.WriteUInt64(Map);
foreach (NetworkClient Receiver in Clients)
{
Receiver.SendEncrypted((byte)PacketType.NEW_CITY_SERVER, ClientPacket.ToArray());
}
}
public static void HandlePlayerOnlineResponse(NetworkClient Client, ProcessedPacket P)
{
byte Result = (byte)P.ReadByte();
string Token = P.ReadString();
//NOTE: Might have to find another way to identify a client, since two people
// can be on the same account from the same IP.
string RemoteIP = P.ReadString();
int RemotePort = P.ReadInt32();
PacketStream Packet;
NetworkClient FoundClient;
switch (Result)
{
case 0x01:
Packet = new PacketStream((byte)PacketType.REQUEST_CITY_TOKEN, 0);
Packet.WriteString(Token);
FoundClient = NetworkFacade.ClientListener.GetClient(RemoteIP, RemotePort);
if (FoundClient != null)
{
FoundClient.SendEncrypted((byte)PacketType.REQUEST_CITY_TOKEN, Packet.ToArray());
}
break;
case 0x02: //Write player was already online packet!
Packet = new PacketStream((byte)PacketType.PLAYER_ALREADY_ONLINE, 0);
Packet.WriteByte(0x00); //Dummy
FoundClient = NetworkFacade.ClientListener.GetClient(RemoteIP, RemotePort);
if (FoundClient != null)
{
FoundClient.SendEncrypted((byte)PacketType.PLAYER_ALREADY_ONLINE, Packet.ToArray());
}
break;
}
}
/// <summary>
/// A cityserver logged in!
/// </summary>
public static void HandleCityServerLogin(NetworkClient Client, ProcessedPacket P)
{
CityServerClient CityClient = (CityServerClient)Client;
Logger.LogInfo("CityServer logged in!\r\n");
string Name = P.ReadString();
string Description = P.ReadString();
string IP = P.ReadString();
int Port = P.ReadInt32();
CityInfoStatus Status = (CityInfoStatus)P.ReadByte();
ulong Thumbnail = P.ReadUInt64();
string UUID = P.ReadString();
ulong Map = P.ReadUInt64();
CityInfo Info = new CityInfo(Name, Description, Thumbnail, UUID, Map, IP, Port);
Info.Status = Status;
CityClient.ServerInfo = Info;
//Client instance changed, so update it...
NetworkFacade.CServerListener.UpdateClient(CityClient);
}
public static void HandleCharacterCreate(NetworkClient Client, ProcessedPacket P)
{
Logger.LogInfo("Received CharacterCreate!");
string AccountName = SanitizeAccount(P.ReadPascalString());
using (var db = DataAccess.Get())
{
Account Acc = db.Accounts.GetByUsername(AccountName);
//TODO: Send GUID to client...
Sim Char = new Sim(Guid.NewGuid());
Char.Timestamp = P.ReadPascalString();
Char.Name = P.ReadPascalString();
Char.Sex = P.ReadPascalString();
Char.Description = P.ReadPascalString();
Char.HeadOutfitID = P.ReadUInt64();
Char.BodyOutfitID = P.ReadUInt64();
Char.Appearance = (AppearanceType)P.ReadByte();
Char.ResidingCity = new CityInfo(P.ReadPascalString(), "", P.ReadUInt64(), P.ReadPascalString(),
P.ReadUInt64(), P.ReadPascalString(), P.ReadInt32());
Char.CreatedThisSession = true;
var characterModel = new Character();
characterModel.Name = Char.Name;
characterModel.Sex = Char.Sex;
characterModel.Description = Char.Description;
characterModel.LastCached = Char.Timestamp;
characterModel.GUID = Char.GUID;
characterModel.HeadOutfitID = (long)Char.HeadOutfitID;
characterModel.BodyOutfitID = (long)Char.BodyOutfitID;
characterModel.AccountID = Acc.AccountID;
characterModel.AppearanceType = (int)Char.Appearance;
characterModel.City = Char.ResidingCity.UUID;
characterModel.CityName = Char.ResidingCity.Name;
characterModel.CityThumb = (long)Char.ResidingCity.Thumbnail;
characterModel.CityMap = (long)Char.ResidingCity.Map;
characterModel.CityIp = Char.ResidingCity.IP;
characterModel.CityPort = Char.ResidingCity.Port;
var status = db.Characters.CreateCharacter(characterModel);
//Need to be variable length, because the success packet contains a token.
PacketStream CCStatusPacket = new PacketStream((byte)PacketType.CHARACTER_CREATION_STATUS, 0);
switch (status)
{
case LoginDataModel.Entities.CharacterCreationStatus.NameAlreadyExisted:
CCStatusPacket.WriteByte((int)LoginDataModel.Entities.CharacterCreationStatus.NameAlreadyExisted);
Client.SendEncrypted(CCStatusPacket.PacketID, CCStatusPacket.ToArray());
break;
case LoginDataModel.Entities.CharacterCreationStatus.ExceededCharacterLimit:
CCStatusPacket.WriteByte((int)LoginDataModel.Entities.CharacterCreationStatus.ExceededCharacterLimit);
Client.SendEncrypted(CCStatusPacket.PacketID, CCStatusPacket.ToArray());
break;
case LoginDataModel.Entities.CharacterCreationStatus.Success:
CCStatusPacket.WriteByte((int)LoginDataModel.Entities.CharacterCreationStatus.Success);
CCStatusPacket.WritePascalString(Char.GUID.ToString());
Guid Token = Guid.NewGuid();
CCStatusPacket.WritePascalString(Token.ToString());
Client.SendEncrypted(CCStatusPacket.PacketID, CCStatusPacket.ToArray());
foreach (CityServerClient CServer in NetworkFacade.CServerListener.CityServers)
{
if (CServer.ServerInfo.UUID == Char.ResidingCity.UUID)
{
PacketStream CServerPacket = new PacketStream(0x01, 0);
CServerPacket.WriteHeader();
ushort PacketLength = (ushort)(PacketHeaders.UNENCRYPTED + 4 + (Client.RemoteIP.Length + 1)
+ (Char.GUID.ToString().Length + 1) + (Token.ToString().Length + 1));
CServerPacket.WriteUInt16(PacketLength);
CServerPacket.WriteInt32(Acc.AccountID);
CServerPacket.WritePascalString(Client.RemoteIP);
CServerPacket.WritePascalString(Char.GUID.ToString());
CServerPacket.WritePascalString(Token.ToString());
CServer.Send(CServerPacket.ToArray());
break;
}
}
break;
}
}
//Client was modified, so update it.
NetworkFacade.ClientListener.UpdateClient(Client);
}
/**
* Actual packet handlers
*/
public static void HandleLoginRequest(NetworkClient Client, ProcessedPacket P)
{
Logger.LogInfo("Received LoginRequest!\r\n");
byte AccountStrLength = (byte)P.ReadByte();
byte[] AccountNameBuf = new byte[AccountStrLength];
P.Read(AccountNameBuf, 0, AccountStrLength);
string AccountName = SanitizeAccount(Encoding.ASCII.GetString(AccountNameBuf));
Logger.LogInfo("Accountname: " + AccountName + "\r\n");
byte HashLength = (byte)P.ReadByte();
byte[] HashBuf = new byte[HashLength];
P.Read(HashBuf, 0, HashLength);
if (AccountName == "")
{
PacketStream OutPacket = new PacketStream((byte)PacketType.LOGIN_FAILURE, 2);
OutPacket.WriteHeader();
OutPacket.WriteByte(0x01);
Client.Send(OutPacket.ToArray());
Logger.LogInfo("Bad accountname - sent SLoginFailResponse!\r\n");
Client.Disconnect();
return;
}
using (var db = DataAccess.Get())
{
var account = db.Accounts.GetByUsername(AccountName);
byte KeyLength = (byte)P.ReadByte();
byte[] EncKey = new byte[KeyLength];
P.Read(EncKey, 0, KeyLength);
//TODO: Do something with this...
byte Version1 = (byte)P.ReadByte();
byte Version2 = (byte)P.ReadByte();
byte Version3 = (byte)P.ReadByte();
byte Version4 = (byte)P.ReadByte();
string ClientVersion = Version1.ToString() + "." + Version2.ToString() + "." + Version3.ToString() +
"." + Version4.ToString();
if (ClientVersion != GlobalSettings.Default.ClientVersion)
{
PacketStream OutPacket = new PacketStream((byte)PacketType.INVALID_VERSION, 2);
OutPacket.WriteHeader();
OutPacket.WriteByte(0x01);
Client.Send(OutPacket.ToArray());
Logger.LogInfo("Bad version - sent SInvalidVersion!\r\n");
Client.Disconnect();
return;
}
if (!GlobalSettings.Default.CreateAccountsOnLogin)
{
Logger.LogInfo("Done reading LoginRequest, checking account...\r\n");
if (account == null)
{
PacketStream OutPacket = new PacketStream((byte)PacketType.LOGIN_FAILURE, 2);
OutPacket.WriteHeader();
OutPacket.WriteByte(0x01);
Client.Send(OutPacket.ToArray());
Logger.LogInfo("Bad accountname - sent SLoginFailResponse!\r\n");
Client.Disconnect();
return;
}
else
{
Client.ClientEncryptor = new ARC4Encryptor(account.Password, EncKey);
}
}
else
{
if (account == null)
{
try
{
db.Accounts.Create(new Account
{
AccountName = AccountName.ToLower(),
Password = Convert.ToBase64String(HashBuf)
});
}
catch (Exception)
{
PacketStream OutPacket = new PacketStream((byte)PacketType.LOGIN_FAILURE, 2);
OutPacket.WriteHeader();
OutPacket.WriteByte(0x01);
Client.Send(OutPacket.ToArray());
Logger.LogInfo("Bad accountname - sent SLoginFailResponse!\r\n");
Client.Disconnect();
return;
}
account = db.Accounts.GetByUsername(AccountName);
}
Client.ClientEncryptor = new ARC4Encryptor(account.Password, EncKey);
}
if (account.IsCorrectPassword(AccountName, HashBuf))
{
//0x01 = InitLoginNotify
PacketStream OutPacket = new PacketStream((byte)PacketType.LOGIN_NOTIFY, 1);
OutPacket.WriteHeader();
OutPacket.WriteByte(0x01);
Client.ClientEncryptor.Username = AccountName;
Client.Send(OutPacket.ToArray());
Logger.LogInfo("Sent InitLoginNotify!\r\n");
}
else
{
PacketStream OutPacket = new PacketStream((byte)PacketType.LOGIN_FAILURE, 2);
OutPacket.WriteHeader();
OutPacket.WriteByte(0x02);
Client.Send(OutPacket.ToArray());
Logger.LogInfo("Bad password - sent SLoginFailResponse!\r\n");
Client.Disconnect();
return;
}
}
//Client was modified, update it.
NetworkFacade.ClientListener.UpdateClient(Client);
}
/// <summary>
/// Client sent a response to our challenge, as well as account name and password.
/// </summary>
public static void HandleChallengeResponse(NetworkClient Client, ProcessedPacket P)
{
PacketStream OutPacket;
if (P.BufferLength <= 1)
{
OutPacket = new PacketStream((byte)PacketType.LOGIN_FAILURE, 0);
OutPacket.WriteByte(0x03); //Bad challenge response.
Client.Send(OutPacket.ToArray());
Logger.LogInfo("Bad challenge response - sent SLoginFailResponse!\r\n");
return; //How does this even happen?!
}
int Length = P.ReadByte();
byte[] CResponse;
if (P.BufferLength >= Length)
{
CResponse = P.ReadBytes(Length);
}
else
{
return;
}
AESDecryptionArgs DecryptionArgs = Client.ClientEncryptor.GetDecryptionArgsContainer().AESDecryptArgs;
if (DecryptionArgs.Challenge.SequenceEqual(CResponse))
{
string AccountName = SanitizeAccount(P.ReadString());
Length = P.ReadByte();
byte[] PasswordHash;
if (P.BufferLength >= Length)
{
PasswordHash = P.ReadBytes(Length);
}
else
{
return;
}
// Check whether the accountname is empty or is/contains "username"
if (AccountName == string.Empty || AccountName.ToLower().Equals("username") || AccountName.ToLower().Contains("username"))
{
OutPacket = new PacketStream((byte)PacketType.LOGIN_FAILURE, 0);
OutPacket.WriteHeader();
OutPacket.WriteUInt16((ushort)(PacketHeaders.UNENCRYPTED + 1));
OutPacket.WriteByte(0x01);
Client.Send(OutPacket.ToArray());
Logger.LogInfo(@"Bad accountname (""" + AccountName + @""") - sent SLoginFailResponse!\r\n");
Client.Disconnect();
return;
}
using (var db = DataAccess.Get())
{
var account = db.Accounts.GetByUsername(AccountName);
if (!GlobalSettings.Default.CreateAccountsOnLogin)
{
Logger.LogInfo("Done reading LoginRequest, checking account...\r\n");
if (account == null)
{
OutPacket = new PacketStream((byte)PacketType.LOGIN_FAILURE, 0);
OutPacket.WriteHeader();
OutPacket.WriteUInt16((ushort)(PacketHeaders.UNENCRYPTED + 1));
OutPacket.WriteByte(0x01);
Client.Send(OutPacket.ToArray());
Logger.LogInfo(@"Bad accountname (""" + AccountName + @""") - sent SLoginFailResponse!\r\n");
Client.Disconnect();
return;
}
}
else
{
if (account == null)
{
try
{
if (!AccountName.ToLower().Equals("username") || !AccountName.ToLower().Contains("username"))
{
db.Accounts.Create(new Account
{
AccountName = AccountName.ToLower(),
Password = Convert.ToBase64String(PasswordHash)
});
}
}
catch (Exception)
{
OutPacket = new PacketStream((byte)PacketType.LOGIN_FAILURE, 0);
OutPacket.WriteHeader();
OutPacket.WriteUInt16((ushort)(PacketHeaders.UNENCRYPTED + 1));
OutPacket.WriteByte(0x01);
Client.Send(OutPacket.ToArray());
Logger.LogInfo(@"Bad accountname (""" + AccountName + @""") - sent SLoginFailResponse!\r\n");
Client.Disconnect();
return;
}
account = db.Accounts.GetByUsername(AccountName);
}
}
if (account.IsCorrectPassword(AccountName, PasswordHash))
{
OutPacket = new PacketStream((byte)PacketType.LOGIN_SUCCESS, 0);
OutPacket.WriteByte(0x01);
Client.ClientEncryptor.Username = AccountName;
Client.SendEncrypted((byte)PacketType.LOGIN_SUCCESS, OutPacket.ToArray());
Logger.LogInfo("Sent SLoginSuccessResponse!\r\n");
return;
}
else
{
OutPacket = new PacketStream((byte)PacketType.LOGIN_FAILURE, 0);
OutPacket.WriteHeader();
OutPacket.WriteUInt16((ushort)(PacketHeaders.UNENCRYPTED + 1));
OutPacket.WriteByte(0x02);
Client.Send(OutPacket.ToArray());
Logger.LogInfo("Bad password - sent SLoginFailResponse!\r\n");
Client.Disconnect();
return;
}
}
}
OutPacket = new PacketStream((byte)PacketType.LOGIN_FAILURE, 0);
OutPacket.WriteHeader();
OutPacket.WriteUInt16((ushort)(PacketHeaders.UNENCRYPTED + 1));
OutPacket.WriteByte(0x03); //Bad challenge response.
Client.Send(OutPacket.ToArray());
Logger.LogInfo("Bad challenge response - sent SLoginFailResponse!\r\n");
return;
}
/// <summary>
/// Client created a character!
/// </summary>
public static void HandleCharacterCreate(NetworkClient Client, ProcessedPacket P)
{
Logger.LogInfo("Received CharacterCreate!");
string AccountName = SanitizeAccount(P.ReadString());
//Need to be variable length, because the success packet contains a token.
PacketStream CCStatusPacket = new PacketStream((byte)PacketType.CHARACTER_CREATION_STATUS, 0);
using (var db = DataAccess.Get())
{
Account Acc = db.Accounts.GetByUsername(AccountName);
if (Acc.NumCharacters >= 3)
{
CCStatusPacket.WriteByte((int)LoginDataModel.Entities.CharacterCreationStatus.ExceededCharacterLimit);
Client.SendEncrypted(CCStatusPacket.PacketID, CCStatusPacket.ToArray());
return;
}
//TODO: Send GUID to client...
var Char = new Character();
string LastCached = P.ReadString();
if (LastCached == string.Empty)
{
//TODO: Proper error...
CCStatusPacket.WriteByte((int)LoginDataModel.Entities.CharacterCreationStatus.NameAlreadyExisted);
Client.SendEncrypted(CCStatusPacket.PacketID, CCStatusPacket.ToArray());
return;
}
Char.LastCached = ProtoHelpers.ParseDateTime(LastCached);
Char.Name = P.ReadString();
Char.Sex = P.ReadString();
Char.Description = P.ReadString();
Char.GUID = Guid.NewGuid();
Char.HeadOutfitID = (long)P.ReadUInt64();
Char.BodyOutfitID = (long)P.ReadUInt64();
Char.AccountID = Acc.AccountID;
Char.AppearanceType = P.ReadByte();
Char.CityName = P.ReadString();
Char.CityThumb = (long)P.ReadUInt64();
Char.City = P.ReadString();
Char.CityMap = (long)P.ReadUInt64();
Char.CityIp = P.ReadString();
Char.CityPort = P.ReadInt32();
Char.Money = NetworkFacade.INITIAL_MONEY;
//These are going into DB, so be nazi. Sieg heil!
if (Char.Name == string.Empty || Char.Sex == string.Empty ||
Char.Description == string.Empty)
{
CCStatusPacket.WriteByte((int)LoginDataModel.Entities.CharacterCreationStatus.NameAlreadyExisted);
Client.SendEncrypted(CCStatusPacket.PacketID, CCStatusPacket.ToArray());
return;
}
var status = db.Characters.CreateCharacter(Char);
switch (status)
{
case LoginDataModel.Entities.CharacterCreationStatus.NameAlreadyExisted:
CCStatusPacket.WriteByte((int)LoginDataModel.Entities.CharacterCreationStatus.NameAlreadyExisted);
Client.SendEncrypted(CCStatusPacket.PacketID, CCStatusPacket.ToArray());
break;
case LoginDataModel.Entities.CharacterCreationStatus.NameTooLong:
CCStatusPacket.WriteByte((int)LoginDataModel.Entities.CharacterCreationStatus.NameTooLong);
Client.SendEncrypted(CCStatusPacket.PacketID, CCStatusPacket.ToArray());
break;
case LoginDataModel.Entities.CharacterCreationStatus.Success:
Guid Token = Guid.NewGuid();
//This actually updates the record, not sure how.
Acc.NumCharacters++;
//THIS NEEDS TO HAPPEN FIRST FOR CITY SERVER AUTHENTICATION TO WORK!
CityInfo CServer = NetworkFacade.CServerListener.GetCityServer(Char.City);
//Just in case...
if (CServer != null)
{
PacketStream CServerPacket = new PacketStream(0x01, 0);
CServerPacket.WriteHeader();
ushort PacketLength = (ushort)(PacketHeaders.UNENCRYPTED + 1 + 4 + (Client.RemoteIP.Length + 1)
+ 4 + (Char.GUID.ToString().Length + 1) + (Token.ToString().Length + 1));
CServerPacket.WriteUInt16(PacketLength);
CServerPacket.WriteByte(1); //CharacterCreate = true
CServerPacket.WriteInt32(Acc.AccountID);
CServerPacket.WriteString(Client.RemoteIP);
CServerPacket.WriteInt32(Client.RemotePort);
CServerPacket.WriteString(Char.GUID.ToString());
CServerPacket.WriteString(Token.ToString(""));
CServer.Client.Send(CServerPacket.ToArray());
}
CCStatusPacket.WriteByte((int)LoginDataModel.Entities.CharacterCreationStatus.Success);
CCStatusPacket.WriteString(Char.GUID.ToString());
CCStatusPacket.WriteString(Token.ToString());
Client.SendEncrypted(CCStatusPacket.PacketID, CCStatusPacket.ToArray());
break;
}
}
}
/// <summary>
/// Client wanted to log in!
/// </summary>
public static void HandleLoginRequest(NetworkClient Client, ProcessedPacket P)
{
try
{
Logger.LogInfo("Received LoginRequest!\r\n");
byte Version1 = (byte)P.ReadByte();
byte Version2 = (byte)P.ReadByte();
byte Version3 = (byte)P.ReadByte();
byte Version4 = (byte)P.ReadByte();
string ClientVersion = Version1.ToString() + "." + Version2.ToString() + "." + Version3.ToString() +
"." + Version4.ToString();
if (ClientVersion != GlobalSettings.Default.ClientVersion)
{
PacketStream OutPacket = new PacketStream((byte)PacketType.INVALID_VERSION, 2);
OutPacket.WriteHeader();
OutPacket.WriteByte(0x01);
Client.Send(OutPacket.ToArray());
Logger.LogInfo("Bad version - sent SInvalidVersion!\r\n");
Client.Disconnect();
return;
}
PacketStream EncryptedPacket = new PacketStream((byte)PacketType.LOGIN_NOTIFY, 0);
EncryptedPacket.WriteHeader();
AESEncryptor Enc = (AESEncryptor)Client.ClientEncryptor;
if (Enc == null)
{
Enc = new AESEncryptor("");
}
Enc.PublicKey = P.ReadBytes((P.ReadByte()));
Enc.NOnce = P.ReadBytes((P.ReadByte()));
Enc.PrivateKey = NetworkFacade.ServerKey;
Client.ClientEncryptor = Enc;
MemoryStream StreamToEncrypt = new MemoryStream();
BinaryWriter Writer = new BinaryWriter(StreamToEncrypt);
Writer.Write(Enc.Challenge, 0, Enc.Challenge.Length);
Writer.Flush();
byte[] EncryptedData = StaticStaticDiffieHellman.Encrypt(NetworkFacade.ServerKey,
System.Security.Cryptography.ECDiffieHellmanCngPublicKey.FromByteArray(Enc.PublicKey,
System.Security.Cryptography.CngKeyBlobFormat.EccPublicBlob), Enc.NOnce, StreamToEncrypt.ToArray());
EncryptedPacket.WriteUInt16((ushort)(PacketHeaders.UNENCRYPTED +
(1 + NetworkFacade.ServerPublicKey.Length) +
(1 + EncryptedData.Length)));
EncryptedPacket.WriteByte((byte)NetworkFacade.ServerPublicKey.Length);
EncryptedPacket.WriteBytes(NetworkFacade.ServerPublicKey);
EncryptedPacket.WriteByte((byte)EncryptedData.Length);
EncryptedPacket.WriteBytes(EncryptedData);
Client.Send(EncryptedPacket.ToArray());
}
//This should HOPEFULLY wade off clients sending unreadable (I.E old protocol) packets...
catch (Exception E)
{
Logger.LogDebug("Error while handling login request, disconnecting client: " +
E.ToString());
Client.Disconnect();
return;
}
}
