public override void OnConnect(ServerSocket parent = null)
{
if (ClientConnection.CurrentSession == null)
throw new Exception("Realm connection with no session");
var realmparent = parent as RealmClientSocket;
if (realmparent == null)
throw new Exception("Realm connection with non realm parent!");
ClientConnection.CurrentSession.SetRealmInfo(realmparent.GetRealmSettings());
Random rnd = new Random();
Seed = (UInt32) rnd.Next();
PacketOut p = new PacketOut(RealmOp.SMSG_AUTH_CHALLENGE);
p.Write((int) 1);
p.Write(Seed);
p.Write(0xF3539DA3);
p.Write(0x6E8547B9);
p.Write(0x9A6AA2F8);
p.Write(0xA4F170F4);
p.Write(0xF3539DA3);
p.Write(0x6E8547B9);
p.Write(0x9A6AA2F8);
p.Write(0xA4F170F4);
SendPacket(p);
}
public static PacketProcessResult HandlePing(PacketProcessor p)
{
CMSG_PING pkt = new CMSG_PING();
pkt.Read(p.CurrentPacket);
PacketOut pout = new PacketOut(RealmOp.SMSG_PONG);
pout.Write(pkt.ping);
pout.Finalise();
p.ClientConnection.Send(pout.strm.ToArray());
return PacketProcessResult.Processed;
}
public async Task OnLogonChallenge(AuthLogonChallenge challenge)
{
Account = GrainFactory.GetGrain<IAccount>(challenge.account);
if (!(await Account.IsValid()))
{
await SendAuthError(AuthError.NoAccount);
return;
}
string password = await Account.GetPassword();
Shared.BigInteger pass = new Shared.BigInteger(password, 16);
//test
string passwordPlain = await Account.GetPasswordPlain();
string SRPHash = challenge.account.ToUpper() + ":" + passwordPlain.ToUpper();
var SRPHashBytes = Encoding.UTF8.GetBytes(SRPHash);
var SRPCreds = BigInt.Hash(SRPHashBytes); //The bytes were g
BigInteger x = BigInt.Hash(s, SRPCreds);
v = g.ModPow(x, N);
b = new Shared.BigInteger(new Random(), 160);
Shared.BigInteger gmod = g.ModPow(b, N);
if (gmod < 0)
gmod += N;
B = ((v*3) + gmod)%N;
if (B < 0)
B += N;
Shared.BigInteger unk = new Shared.BigInteger(new Random(), 128);
//I'm sure this is used for matrix proofing (2 factor auth)
PacketOut rtn = new PacketOut(AuthOp.AUTH_LOGON_CHALLENGE);
rtn.Write((byte) AuthError.Success);
rtn.Write((byte) 0); //unknown
rtn.WriteBigInt(B, 32);
rtn.WriteBigIntLength(g, 1);
rtn.WriteBigIntLength(N, 32);
rtn.WriteBigInt(s, 32);
rtn.WriteBigInt(unk, 16);
rtn.Write((byte) 0); //security flag
await SendPacket(rtn); //test
}
public async Task HandleNameQuery(CMSG_NAME_QUERY pkt)
{
var player = GrainFactory.GetGrain<IPlayer>(pkt.guid.ToInt64());
var valid = await player.IsValid();
var guid_packed = new PackedGUID(pkt.guid);
PacketOut p = new PacketOut(RealmOp.SMSG_NAME_QUERY_RESPONSE);
p.Write(guid_packed);
if (!valid)
{
p.Write((byte)1); //unknown
await SendPacket(p);
return;
}
p.Write((byte)0); //known
p.WriteCString(await player.GetName());
var realmid = await player.GetRealmID();
if (realmid != await GetRealmID()) //player is on a different realm to this session, append their realm name
{
var realm_manager = GrainFactory.GetGrain<IRealmManager>(0);
p.WriteCString(await realm_manager.GetRealmName((int)realmid));
}
else
p.Write((byte)0); //null string aka same realm aka dont show anything extra
p.Write(await player.GetRace());
p.Write(await player.GetGender());
p.Write(await player.GetClass());
p.Write((byte)0); //isNameDeclined
await SendPacket(p);
}
public void SendPacket(PacketOut p)
{
p.Finalise();
var parray = p.strm.ToArray();
ClientConnection.Send(parray, parray.Length);
}
public void Write(PacketOut p)
{
Write(p.strm.ToArray());
}
public async Task OnLogonProof(AuthLogonProof proof)
{
BigInteger A = new BigInteger(proof.A);
BigInteger M1 = new BigInteger(proof.M1);
if (A == 0 || M1 == 0) //possible hack attempt
{
await SendAuthError(AuthError.NoAccount);
return;
}
BigInteger u = BigInt.Hash(A, B);
BigInteger tmp = v.ModPow(u, N);
if (tmp < 0)
tmp += N;
BigInteger S = A * tmp;
S = S.ModPow(b, N);
if (S < 0)
S += N;
byte[] t = S.GetBytes();
//byte[] t = new byte[32];
byte[] t1 = new byte[16];
byte[] t2 = new byte[16];
byte[] vK = new byte[40];
for (int i = 0; i < 16; ++i)
{
t1[i] = t[i * 2];
t2[i] = t[(i * 2) + 1];
}
var t1sha = BigInt.Hash(t1);
var t2sha = BigInt.Hash(t2);
var t1shabytes = t1sha.GetBytes(20);
var t2shabytes = t2sha.GetBytes(20);
for (int i = 0; i < 20; ++i)
{
vK[i * 2] = t1shabytes[i];
vK[(i * 2) + 1] = t2shabytes[i];
}
var t3 = BigInt.Hash(N) ^ BigInt.Hash(g);
var AccountName = Account.GetPrimaryKeyString().ToUpper();
var t4bytes = Encoding.UTF8.GetBytes(AccountName);
var t4 = BigInt.Hash(t4bytes);
t4bytes = t4.GetBytes();
SessionKey = new BigInteger(vK);
var M = BigInt.Hash(t3, t4, s, A, B, SessionKey);
//do we match the M sent by the client?
if (M == M1)
{
Authed = true;
// The account code will disconnect any other attached auth or realm sessions when we add an auth session to it
await Account.AddSession(this);
BigInteger M2 = BigInt.Hash(A, M, SessionKey);
PacketOut p = new PacketOut(AuthOp.AUTH_LOGON_PROOF);
p.Write((byte)AuthError.Success);
p.WriteBigInt(M2, 20);
p.Write((int)0);
p.Write((int)0);
p.Write((short)0);
await SendPacket(p);
}
else
{
await SendAuthError(AuthError.NoAccount);
}
}
Task SendAuthError(AuthError error)
{
PacketOut p = new PacketOut();
p.w.Write((byte)AuthOp.AUTH_LOGON_CHALLENGE);
p.w.Write((byte)0);
p.w.Write((byte)error);
SendPacket(p);
return TaskDone.Done;
}
public async Task OnRealmList()
{
if (!Authed)
return;
var realm_manager = GrainFactory.GetGrain<IRealmManager>(0);
if (realm_manager == null) //something seriously went wrong!
return;
var realms = await realm_manager.GetRealms();
PacketOut p = new PacketOut(AuthOp.REALM_LIST);
p.Write((UInt16)0); //size
p.Write((int)0);
//lets write a test realm!
p.Write((UInt16)realms.Length); //realmCount
foreach (var r in realms)
{
p.Write((byte)0); //type
p.Write((byte)0); //status
p.Write((byte)0); //flags
p.WriteCString(r.RealmSettings.Name);
p.WriteCString(r.RealmSettings.Address);
p.Write(r.GetPopulationStatus());
p.Write((byte)1); //character count, TODO
p.Write((byte)r.RealmSettings.Cat);
p.Write((byte)0); //unknown
}
//this should be a loop based on realmcount in future
//end loop
p.Write((byte)0x10);
p.Write((byte)0);
//rewrite size
p.strm.Position = 1;
p.Write((UInt16)(p.strm.Length - 3));
p.strm.Position = p.strm.Length;
await SendPacket(p);
}
public void Write(PacketOut p)
{
p.Write(GUID);
p.Write((UInt32)Flags);
p.Write((UInt16)Flags2);
p.Write(Time);
p.Write(PositionX);
p.Write(PositionY);
p.Write(PositionZ);
p.Write(PositionO);
if (Flags.HasFlag(MovementFlags.MOVEMENTFLAG_ONTRANSPORT))
{
if (MovementDataTransport == null)
MovementDataTransport = new MovementDataTransport();
p.Write(MovementDataTransport.TransportGuid);
p.Write(MovementDataTransport.TransportX);
p.Write(MovementDataTransport.TransportY);
p.Write(MovementDataTransport.TransportZ);
p.Write(MovementDataTransport.TransportO);
p.Write(MovementDataTransport.TransportTime);
p.Write(MovementDataTransport.TransportSeat);
if (Flags2.HasFlag(MovementFlags2.MOVEMENTFLAG2_INTERPOLATED_MOVEMENT))
p.Write(MovementDataTransport.TransportTime2);
}
if (Flags.HasFlag(MovementFlags.MOVEMENTFLAG_SWIMMING | MovementFlags.MOVEMENTFLAG_FLYING) ||
Flags2.HasFlag(MovementFlags2.MOVEMENTFLAG2_ALWAYS_ALLOW_PITCHING))
p.Write(Pitch);
p.Write(FallTime);
if (Flags.HasFlag(MovementFlags.MOVEMENTFLAG_FALLING))
{
p.Write(FallVerticalSpeed);
p.Write(FallSine);
p.Write(FallCosine);
p.Write(FallLateralSpeed);
}
if (Flags.HasFlag(MovementFlags.MOVEMENTFLAG_SPLINE_ELEVATION))
p.Write(SplineElevation);
}
public static object Deserializer(System.Type expected, global::Orleans.Serialization.BinaryTokenStreamReader stream)
{
Shared.PacketOut result = new Shared.PacketOut();
object objResult = ((object)(result));
object temp1 = ((System.IO.MemoryStream)(Orleans.Serialization.SerializationManager.DeserializeInner(typeof(System.IO.MemoryStream), stream)));
fieldInfo1.SetValue(objResult, temp1);
object temp2 = ((Shared.PacketType)(Orleans.Serialization.SerializationManager.DeserializeInner(typeof(Shared.PacketType), stream)));
fieldInfo2.SetValue(objResult, temp2);
return objResult;
}
public static object DeepCopier(object original)
{
Shared.PacketOut input = ((Shared.PacketOut)(original));
Shared.PacketOut result = new Shared.PacketOut();
Orleans.Serialization.SerializationContext.Current.RecordObject(original, result);
object objResult = ((object)(result));
object temp1 = ((System.IO.MemoryStream)(Orleans.Serialization.SerializationManager.DeepCopyInner(fieldInfo1.GetValue(input))));
fieldInfo1.SetValue(objResult, temp1);
object temp2 = fieldInfo2.GetValue(input);
fieldInfo2.SetValue(objResult, temp2);
return objResult;
}
public void Write(PacketOut p)
{
Write(p.strm.ToArray());
}
public void SendPacket(PacketOut p)
{
p.Finalise();
var parray = p.strm.ToArray();
sock.Send(parray, parray.Length);
}
