/// <summary>
///
/// </summary>
/// <param name="numBytes"></param>
protected override void OnReceive(int numBytes)
{
byte[] packet = new byte[numBytes];
Array.Copy(this.m_readBuffer.Array, this.m_readBuffer.Offset, packet, 0, numBytes);
PacketReader reader = new PacketReader(packet);
// TODO: make check here to see if packet starts with 0xDFDF
reader.ReadBytes(2);
// Packet type
short type = reader.PopShort();
// Unknown?
reader.PopShort();
// Packet Length
reader.PopShort();
// Sender
reader.PopInt();
// Receiver
reader.PopInt();
// PacketID
int id = reader.PopInt();
switch (type)
{
case 0x01: // SystemMessage
{
Program.zoneServer.SystemMessageHandler.Parse(this, packet, id);
break;
}
case 0x05: // TextMessage
{
Program.zoneServer.TextMessageHandler.Parse(this, packet, id);
break;
}
case 0x0A: // N3Message
{
N3Message.Parse(this, packet, id);
break;
}
case 0x0B: // PingMessage
{
break;
}
case 0x0E: // OperatorMessage
{
break;
}
default: // UnknownMessage
{
// TODO: Handle Unknown Messages
break;
}
}
reader.Finish();
}
/// <summary>
///
/// </summary>
/// <param name="client"></param>
/// <param name="packet"></param>
/// <param name="messageNumber"></param>
public void Parse(Client client, byte[] packet, uint messageNumber)
{
#region Setup...
PacketReader packetReader = new PacketReader(packet);
string encryptedPassword;
int encPasswordLength;
byte[] wrongLogin = LoginWrong.GetPacket();
CheckLogin cbl = new CheckLogin();
CharacterName characterName = new CharacterName();
#endregion
switch (messageNumber)
{
case 0x22:
SaltAuthentication salt = new SaltAuthentication();
// Username and version info
packetReader.ReadBytes(24);
client.AccountName = Encoding.ASCII.GetString(packetReader.ReadBytes(40)).TrimEnd(char.MinValue);
client.ClientVersion = Encoding.ASCII.GetString(packetReader.ReadBytes(20)).TrimEnd(char.MinValue);
packetReader.Finish();
Console.ForegroundColor = ConsoleColor.Green;
Console.WriteLine(
"Client '" + client.AccountName + "' connected using version '" + client.ClientVersion + "'");
Console.ResetColor();
// Send Authentication Salt to client
client.ServerSalt = salt.SendPacket(client);
break;
case 0x25:
// Username and encrypted password
// m_stream.Position = 20;
packetReader.ReadBytes(20);
string loginAccountName = packetReader.PopString(40).TrimEnd(char.MinValue);
encPasswordLength = packetReader.PopInt();
encryptedPassword = packetReader.PopString(encPasswordLength).TrimEnd(char.MinValue);
packetReader.Finish();
if (cbl.IsLoginAllowed(client, loginAccountName) == false)
{
/*
* Account name not found or client banned/otherwise not permitted on the server
* Note, this is done here not in the above packet (0x22), even though we have
* the username or the client will complain. Also a security measure as you can
* not tell if an account name is correct or not, only if both the username and
* password are correct.
*
* We also double check that the Account Name is the same as origionally sent
* or there could be a possibility to log in with someone elses account.
*
*/
Console.ForegroundColor = ConsoleColor.Green;
Console.WriteLine(
"Client '" + client.AccountName
+ "' banned, not a valid username, or sent a malformed Authentication Packet");
Console.ResetColor();
client.Send(wrongLogin);
client.Server.DisconnectClient(client);
break;
}
if (cbl.IsLoginCorrect(client, encryptedPassword) == false)
{
// Username/Password Incorrect
Console.ForegroundColor = ConsoleColor.Green;
Console.WriteLine("Client '" + client.AccountName + "' failed Authentication.");
Console.ResetColor();
client.Send(wrongLogin);
client.Server.DisconnectClient(client);
break;
}
else
{
// All's well, send CharacterList Packet
CharacterListPacket charlist = new CharacterListPacket();
charlist.SendPacket(client, client.AccountName);
}
break;
case 0x16:
// Player selected a character and client sends us selected characters ID
packetReader.ReadBytes(20);
int selectedCharID = packetReader.PopInt();
packetReader.Finish();
if (cbl.IsCharacterOnAccount(client, selectedCharID) == false)
{
Console.ForegroundColor = ConsoleColor.Green;
Console.WriteLine(
"Client '" + client.AccountName + "' tried to log in as CharID " + selectedCharID
+ " but it is not on their account!");
Console.ResetColor();
// NV: Is this really what we want to send? Should find out sometime...
client.Send(wrongLogin);
client.Server.DisconnectClient(client);
break;
}
if (OnlineChars.IsOnline(selectedCharID))
{
Console.WriteLine(
"Client '" + client.AccountName
+ "' is trying to login, but the requested character is already logged in.");
client.Send(wrongLogin);
client.Server.DisconnectClient(client);
break;
}
OnlineChars.SetOnline(selectedCharID);
IPAddress tempIP;
if (IPAddress.TryParse(ConfigReadWrite.Instance.CurrentConfig.ZoneIP, out tempIP) == false)
{
IPHostEntry zoneHost = Dns.GetHostEntry(ConfigReadWrite.Instance.CurrentConfig.ZoneIP);
foreach (IPAddress ip in zoneHost.AddressList)
{
if (ip.AddressFamily == AddressFamily.InterNetwork)
{
tempIP = ip;
break;
}
}
}
byte[] ZoneIP = tempIP.GetAddressBytes();
byte[] ZonePort =
BitConverter.GetBytes(Convert.ToInt32(ConfigReadWrite.Instance.CurrentConfig.ZonePort));
PacketWriter writer = new PacketWriter();
writer.PushByte(0xDF);
writer.PushByte(0xDF);
writer.PushShort(1); // Packet type
writer.PushShort(1);
writer.PushShort(0); // Packet length (will be set in packet writer)
writer.PushInt(1);
writer.PushInt(0x615B); // Server ID
writer.PushInt(23); // Packet ID
writer.PushInt(selectedCharID);
writer.PushBytes(ZoneIP);
writer.PushByte(ZonePort[1]);
writer.PushByte(ZonePort[0]);
writer.PushShort(0);
writer.PushInt(0);
writer.PushInt(0);
Byte[] pkt = writer.Finish();
client.Send(pkt);
break;
case 0x55:
/* player ask for 'suggest name'; server sends 'random' name. */
characterName.GetRandomName(client, packetReader.PopInt());
packetReader.Finish();
break;
case 0xf:
/* client created new character */
Int32 characterId;
bool startInShadowLands = false;
characterName.AccountName = client.AccountName;
/* start reading packet */
// !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
// As of 18.5.1 heading for this packet is 69 bytes (65 bytes for lower versions)
// !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
packetReader.ReadBytes(69);
/* name length */
int nameLen = packetReader.PopInt();
/* name */
characterName.Name = packetReader.PopString(nameLen);
/* breed */
characterName.Breed = packetReader.PopInt();
/* gender */
characterName.Gender = packetReader.PopInt();
/* profession */
characterName.Profession = packetReader.PopInt();
/* level (should always be 0 )*/
characterName.Level = packetReader.PopInt();
/* lets skip some stuff */
int skipLen = packetReader.PopInt();
packetReader.ReadBytes(skipLen + 8);
/* head mesh */
characterName.HeadMesh = packetReader.PopInt();
/* monster scale */
characterName.MonsterScale = packetReader.PopInt();
/* fatness */
characterName.Fatness = packetReader.PopInt();
/* start in SL? */
int sl = packetReader.PopInt();
if (sl == 1)
{
startInShadowLands = true;
}
/* close reader and stream */
packetReader.Finish();
/* now you got the data..
* do whatever you have to do with it
* but please.. in some other class :)
*/
/* check name against database
*
* if name exist, return 0.
* if name doesnt exist, creates default char setup and returns character_id
*
*/
characterId = characterName.CheckAgainstDatabase();
if (characterId < 1)
{
characterName.SendNameInUse(client);
}
else
{
characterName.SendNameToStartPlayfield(client, startInShadowLands, characterId);
}
/* reply will work only if character creation
* works, so its disabled for now and should be
* handled in other class in /Packets/<class name>
*/
break;
case 0x14:
/* client deletes char */
Int32 uid;
/* start reading packet */
packetReader.ReadBytes(20);
uid = packetReader.PopInt();
characterName.DeleteChar(client, uid);
packetReader.Finish();
break;
default:
packetReader.Finish();
client.Server.Warning(client, "Client sent unknown message {0}", messageNumber.ToString());
break;
}
}