public static bool HandleAuthLogonChallenge(AuthConnection client, BinaryReader br)
{
client.LogonChallenge = PacketHelper.Parse<C_AuthLogonChallenge>(br);
//Console.WriteLine("<- {0} connecting ({1}.{2}.{3}.{4})", client.LogonChallenge.Identifier, client.LogonChallenge.Version1, client.LogonChallenge.Version2, client.LogonChallenge.Version3, client.LogonChallenge.Build);
// Check ban
// client.SendPacket(AuthOpcodes.AuthLogonChallenge, PacketHelper.Build(new S_AuthLogonChallenge { Error = (byte)AuthResult.Banned }));
// Check suspend
// client.SendPacket(AuthOpcodes.AuthLogonChallenge, PacketHelper.Build(new S_AuthLogonChallenge { Error = (byte)AuthResult.Suspended }));
// Account doesn't exist!
if (!LoginService.ExistsAccount(client.LogonChallenge.Identifier))
{
client.SendPacket(AuthOpcodes.AuthLogonChallenge, PacketHelper.Build(new S_AuthLogonChallenge { Error = AuthResult.UnknownAccount }));
return true;
}
client.SRP = LoginService.GetAccountSecurity(client.LogonChallenge.Identifier);
client.SendPacket(AuthOpcodes.AuthLogonChallenge, PacketHelper.Build(new S_AuthLogonChallenge
{
Error = (byte)AuthResult.Success,
unk1 = 0,
ServerEphemeral = client.SRP.ServerEphemeral.ToProperByteArray().Pad(32),
GeneratorLength = 1,
Generator = client.SRP.Generator.ToByteArray(),
ModulusLength = 32,
Modulus = client.SRP.Modulus.ToProperByteArray().Pad(32),
Salt = client.SRP.Salt.ToProperByteArray().Pad(32),
unk2 = new byte[17]
}));
return true;
}
public static bool HandleReconnectChallenge(AuthConnection client, BinaryReader br)
{
// Packet structure is the same, except for opcode.
client.LogonChallenge = PacketHelper.Parse <C_AuthLogonChallenge>(br);
client.SendPacket(AuthOpcodes.AuthReconnectChallenge, PacketHelper.Build(new S_AuthReconnectChallenge
{
Error = AuthResult.Success,
ChallengeData = client.ChallengeData = RandomGenerator.RandomBytes(16),
}));
return(true);
}
public static bool HandleRealmlist(AuthConnection client, BinaryReader br)
{
var realms = AuthServer.Instance.Service.RealmStates.Select(r => r.Realm);
var data = PacketHelper.Build(new S_RealmList
{
RealmCount = (byte)realms.Count(),
Realms = realms.ToArray()
});
client.SendPacket(AuthOpcodes.RealmList, BitConverter.GetBytes((ushort)data.Length).Concat(data).ToArray());
return(true);
}
public static bool HandleReconnectProof(AuthConnection client, BinaryReader br)
{
var pkt = PacketHelper.Parse <C_AuthReconnectProof>(br);
var serverProof = HashUtil.ComputeHash(
Encoding.ASCII.GetBytes(client.LogonChallenge.Identifier),
pkt.ProofData,
client.ChallengeData,
client.SRP.SessionKey.ToProperByteArray());
if (!serverProof.SequenceEqual(pkt.ClientProof))
{
return(true); // Drop client here
}
client.SendPacket(AuthOpcodes.AuthReconnectProof, PacketHelper.Build(new S_AuthReconnectProof
{
Error = AuthResult.Success
}));
return(true);
}
public static bool HandleAuthLogonChallenge(AuthConnection client, BinaryReader br)
{
client.LogonChallenge = PacketHelper.Parse <C_AuthLogonChallenge>(br);
//Console.WriteLine("<- {0} connecting ({1}.{2}.{3}.{4})", client.LogonChallenge.Identifier, client.LogonChallenge.Version1, client.LogonChallenge.Version2, client.LogonChallenge.Version3, client.LogonChallenge.Build);
// Check ban
// client.SendPacket(AuthOpcodes.AuthLogonChallenge, PacketHelper.Build(new S_AuthLogonChallenge { Error = (byte)AuthResult.Banned }));
// Check suspend
// client.SendPacket(AuthOpcodes.AuthLogonChallenge, PacketHelper.Build(new S_AuthLogonChallenge { Error = (byte)AuthResult.Suspended }));
// Account doesn't exist!
if (!LoginService.ExistsAccount(client.LogonChallenge.Identifier))
{
client.SendPacket(AuthOpcodes.AuthLogonChallenge, PacketHelper.Build(new S_AuthLogonChallenge {
Error = AuthResult.UnknownAccount
}));
return(true);
}
client.SRP = LoginService.GetAccountSecurity(client.LogonChallenge.Identifier);
client.SendPacket(AuthOpcodes.AuthLogonChallenge, PacketHelper.Build(new S_AuthLogonChallenge
{
Error = (byte)AuthResult.Success,
unk1 = 0,
ServerEphemeral = client.SRP.ServerEphemeral.ToProperByteArray().Pad(32),
GeneratorLength = 1,
Generator = client.SRP.Generator.ToByteArray(),
ModulusLength = 32,
Modulus = client.SRP.Modulus.ToProperByteArray().Pad(32),
Salt = client.SRP.Salt.ToProperByteArray().Pad(32),
unk2 = new byte[17]
}));
return(true);
}
public static bool HandleLogonProof(AuthConnection client, BinaryReader br)
{
client.LogonProof = PacketHelper.Parse <C_AuthLogonProof>(br);
client.SRP.ClientEphemeral = client.LogonProof.A.ToPositiveBigInteger();
client.SRP.ClientProof = client.LogonProof.M1.ToPositiveBigInteger();
// Check versions
if (client.LogonChallenge.Build != 5875)
{
client.SendPacket(AuthOpcodes.AuthLogonProof, PacketHelper.Build(new S_AuthLogonProof {
Error = AuthResult.InvalidVersion
}));
return(true);
}
// Check password
if (!client.IsAuthenticated) // TODO: Send response
{
// Increment password fail counter?
client.SendPacket(AuthOpcodes.AuthLogonProof, PacketHelper.Build(new S_AuthLogonProof {
Error = AuthResult.IncorrectPassword
}));
return(true);
}
LoginService.UpdateSessionKey(client.LogonChallenge.Identifier, client.SRP.SessionKey.ToProperByteArray());
client.SendPacket(AuthOpcodes.AuthLogonProof, PacketHelper.Build(new S_AuthLogonProof
{
Error = (byte)AuthResult.Success,
M2 = client.SRP.ServerProof.ToByteArray().Pad(20),
unk2 = 0
}));
return(true);
}
public static bool HandleLogonProof(AuthConnection client, BinaryReader br)
{
client.LogonProof = PacketHelper.Parse<C_AuthLogonProof>(br);
client.SRP.ClientEphemeral = client.LogonProof.A.ToPositiveBigInteger();
client.SRP.ClientProof = client.LogonProof.M1.ToPositiveBigInteger();
// Check versions
if (client.LogonChallenge.Build != 5875)
{
client.SendPacket(AuthOpcodes.AuthLogonProof, PacketHelper.Build(new S_AuthLogonProof { Error = AuthResult.InvalidVersion }));
return true;
}
// Check password
if (!client.IsAuthenticated) // TODO: Send response
{
// Increment password fail counter?
client.SendPacket(AuthOpcodes.AuthLogonProof, PacketHelper.Build(new S_AuthLogonProof { Error = AuthResult.IncorrectPassword }));
return true;
}
LoginService.UpdateSessionKey(client.LogonChallenge.Identifier, client.SRP.SessionKey.ToProperByteArray());
client.SendPacket(AuthOpcodes.AuthLogonProof, PacketHelper.Build(new S_AuthLogonProof
{
Error = (byte)AuthResult.Success,
M2 = client.SRP.ServerProof.ToByteArray().Pad(20),
unk2 = 0
}));
return true;
}
public static bool HandleReconnectProof(AuthConnection client, BinaryReader br)
{
var pkt = PacketHelper.Parse<C_AuthReconnectProof>(br);
var serverProof = HashUtil.ComputeHash(
Encoding.ASCII.GetBytes(client.LogonChallenge.Identifier),
pkt.ProofData,
client.ChallengeData,
client.SRP.SessionKey.ToProperByteArray());
if (!serverProof.SequenceEqual(pkt.ClientProof))
return true; // Drop client here
client.SendPacket(AuthOpcodes.AuthReconnectProof, PacketHelper.Build(new S_AuthReconnectProof
{
Error = AuthResult.Success
}));
return true;
}
public static bool HandleReconnectChallenge(AuthConnection client, BinaryReader br)
{
// Packet structure is the same, except for opcode.
client.LogonChallenge = PacketHelper.Parse<C_AuthLogonChallenge>(br);
client.SendPacket(AuthOpcodes.AuthReconnectChallenge, PacketHelper.Build(new S_AuthReconnectChallenge
{
Error = AuthResult.Success,
ChallengeData = client.ChallengeData = RandomGenerator.RandomBytes(16),
}));
return true;
}
public static bool HandleRealmlist(AuthConnection client, BinaryReader br)
{
var realms = AuthServer.Instance.Service.RealmStates.Select(r => r.Realm);
var data = PacketHelper.Build(new S_RealmList
{
RealmCount = (byte)realms.Count(),
Realms = realms.ToArray()
});
client.SendPacket(AuthOpcodes.RealmList, BitConverter.GetBytes((ushort)data.Length).Concat(data).ToArray());
return true;
}