public override void HandlePacket(WorldClient client, ServerPacket packet)
{
var reader = packet.Reader;
int returnCode = reader.ReadInt32();
if (returnCode != 0)
{
Log.Error($"WS2GC_ANS_DISTRICT_ENTER response had invalid return code {returnCode}");
client.OnDistrictEnterFailed(client, returnCode);
return;
}
var data = new DistrictEnterInfo()
{
ReturnCode = returnCode,
DistrictServerIpAddress = new IPAddress(reader.ReadBytes(4)),
DistrictServerPort = reader.ReadUInt16(),
Timestamp = reader.ReadUInt64(),
};
// Calculate the hash used in the UDP handshake
var timestampBytes = BitConverter.GetBytes(data.Timestamp);
var sha1 = new Sha1Digest();
sha1.BlockUpdate(client._encryptionKey, 0, client._encryptionKey.Length);
sha1.BlockUpdate(timestampBytes, 0, timestampBytes.Length);
var handshakeHash = new byte[sha1.GetDigestSize()];
sha1.DoFinal(handshakeHash, 0);
data.HandshakeHash = handshakeHash;
// Calculate the encryption key used for UDP packets
sha1 = new Sha1Digest();
sha1.BlockUpdate(client._encryptionKey, 0, client._encryptionKey.Length);
sha1.BlockUpdate(handshakeHash, 0, handshakeHash.Length);
var encryptionHash = new byte[sha1.GetDigestSize()];
sha1.DoFinal(encryptionHash, 0);
var encryptionKey = new byte[16];
Buffer.BlockCopy(encryptionHash, 0, encryptionKey, 0, 16);
data.XXTEAKey = encryptionKey;
Log.Debug($"m_nReturnCode = {returnCode}");
Log.Debug($"m_nDistrictServerIPAddress = {data.DistrictServerIpAddress}");
Log.Debug($"m_nDistrictServerPort = {data.DistrictServerPort}");
Log.Debug($"m_nTimestamp = {data.Timestamp}");
Log.Debug($"m_bHandshakeHash = {Util.ByteToHexBitFiddle(data.HandshakeHash)}");
Log.Debug($"m_bXXTEAKey = {Util.ByteToHexBitFiddle(data.XXTEAKey)}");
client.OnDistrictEnterSuccess(client, data);
}
public override void HandlePacket(WorldClient client, ServerPacket packet)
{
var reader = packet.Reader;
int returnCode = reader.ReadInt32();
if (returnCode != 0)
{
client.OnDistrictEnterFailed(client, returnCode);
return;
}
var data = new DistrictEnterInfo()
{
ReturnCode = returnCode,
DistrictServerIpAddress = new IPAddress(reader.ReadBytes(4)),
DistrictServerPort = reader.ReadUInt16(),
Timestamp = reader.ReadUInt64(),
};
var timestampBytes = BitConverter.GetBytes(data.Timestamp);
var sha1 = new Sha1Digest();
sha1.BlockUpdate(client.EncryptionKey, 0, client.EncryptionKey.Length);
sha1.BlockUpdate(timestampBytes, 0, timestampBytes.Length);
var handshakeHash = new byte[sha1.GetDigestSize()];
sha1.DoFinal(handshakeHash, 0);
data.HandshakeHash = handshakeHash;
sha1 = new Sha1Digest();
sha1.BlockUpdate(client.EncryptionKey, 0, client.EncryptionKey.Length);
sha1.BlockUpdate(handshakeHash, 0, handshakeHash.Length);
var encryptionHash = new byte[sha1.GetDigestSize()];
sha1.DoFinal(encryptionHash, 0);
var encryptionKey = new byte[16];
Buffer.BlockCopy(encryptionHash, 0, encryptionKey, 0, 16);
data.XXTEAKey = encryptionKey;
client.OnDistrictEnterSuccess(client, data);
/*
* 21:26:20 - ScriptLog: (cHostingGC2WS_0) cHostingGC2WS::OnDistrictEnterSuccess()
* 21:26:20 - ScriptLog: (cHostingClient_0) ClientState kCLIENT_STATE_DISTRICT_ENTER1_COMPLETE
* 21:26:20 - Log: Connecting to DistrictServer
* 21:26:20 - ScriptLog: (cHostingClient_0) ClientState kCLIENT_STATE_DISTRICTSERVER_CONNECT_IN_PROGRESS
* 21:26:20 - Init: WinSock: Socket queue 32768 / 32768
* 21:26:20 - Init: WinSock: I am DESKTOP-2UIF4CE (192.168.1.6:0)
* 21:26:20 - Log: [FSocketWin::Bind] Binding to 0.0.0.0:0
* 21:26:20 - DevNet: Game client on port 10200
* ...
* 21:26:20 - DevNet: Sending AUTH ACCID=0022424338
* 21:26:20 - DevNet: PendingLevel received: HandshakeChallenge
* 21:26:20 - DevNet: PendingLevel received: HandshakeComplete
* 21:26:20 - DevNet: PendingLevel received: Uses
* ...
* 21:26:22 - ScriptLog: (cAPBPlayerController_1) cHostingPlayerController::InitInputSystem()
* 21:26:22 - ScriptLog: (cAPBPlayerController_1) RemoteRole == ROLE_Authority
* 21:26:22 - ScriptLog: (cAPBPlayerController_1) Calling Send_GC2DS_ASK_DISTRICT_ENTER()
* 21:26:22 - ScriptLog: (cAPBPlayerController_1) Send [GC2DS_ASK_DISTRICT_ENTER]
* ...
* 21:26:25 - ScriptLog: (cAPBPlayerController_1) Receive [DS2GC_ANS_DISTRICT_ENTER]
* 21:26:25 - ScriptLog: (cAPBPlayerController_1) m_nReturnCode 0
* 21:26:25 - ScriptLog: (cAPBPlayerController_1) m_nDistrictUID 16
* 21:26:25 - ScriptLog: (cAPBPlayerController_1) m_nInstanceNo 1
*/
}