void HandleAuthContinuedSessionCallback(AuthContinuedSession authSession, SQLResult result)
{
if (result.IsEmpty())
{
SendAuthResponseError(BattlenetRpcErrorCode.Denied);
CloseSocket();
return;
}
ConnectToKey key = new ConnectToKey();
_key = key.Raw = authSession.Key;
uint accountId = key.AccountId;
string login = result.Read <string>(0);
_sessionKey = result.Read <string>(1).ToByteArray();
HmacSha256 hmac = new HmacSha256(_sessionKey);
hmac.Process(BitConverter.GetBytes(authSession.Key), 8);
hmac.Process(authSession.LocalChallenge, authSession.LocalChallenge.Length);
hmac.Process(_serverChallenge, 16);
hmac.Finish(ContinuedSessionSeed, 16);
if (!hmac.Digest.Compare(authSession.Digest))
{
Log.outError(LogFilter.Network, "WorldSocket.HandleAuthContinuedSession: Authentication failed for account: {0} ('{1}') address: {2}", accountId, login, GetRemoteIpAddress());
CloseSocket();
return;
}
SendPacket(new EnableEncryption());
}
void HandleAuthContinuedSessionCallback(AuthContinuedSession authSession, SQLResult result)
{
if (result.IsEmpty())
{
SendAuthResponseError(BattlenetRpcErrorCode.Denied);
CloseSocket();
return;
}
ConnectToKey key = new ConnectToKey();
_key = key.Raw = authSession.Key;
uint accountId = key.AccountId;
string login = result.Read <string>(0);
_sessionKey = result.Read <byte[]>(1);
HmacSha256 hmac = new HmacSha256(_sessionKey);
hmac.Process(BitConverter.GetBytes(authSession.Key), 8);
hmac.Process(authSession.LocalChallenge, authSession.LocalChallenge.Length);
hmac.Process(_serverChallenge, 16);
hmac.Finish(ContinuedSessionSeed, 16);
if (!hmac.Digest.Compare(authSession.Digest))
{
Log.outError(LogFilter.Network, "WorldSocket.HandleAuthContinuedSession: Authentication failed for account: {0} ('{1}') address: {2}", accountId, login, GetRemoteIpAddress());
CloseSocket();
return;
}
HmacSha256 encryptKeyGen = new HmacSha256(_sessionKey);
encryptKeyGen.Process(authSession.LocalChallenge, authSession.LocalChallenge.Length);
encryptKeyGen.Process(_serverChallenge, 16);
encryptKeyGen.Finish(EncryptionKeySeed, 16);
// only first 16 bytes of the hmac are used
Buffer.BlockCopy(encryptKeyGen.Digest, 0, _encryptKey, 0, 16);
SendPacket(new EnterEncryptedMode(_encryptKey, true));
AsyncRead();
}
public override void Write()
{
HmacSha256 hash = new HmacSha256(EncryptionKey);
hash.Process(BitConverter.GetBytes(Enabled), 1);
hash.Finish(EnableEncryptionSeed, 16);
_worldPacket.WriteBytes(RsaCrypt.RSA.SignHash(hash.Digest, HashAlgorithmName.SHA256, RSASignaturePadding.Pkcs1).Reverse().ToArray());
_worldPacket.WriteBit(Enabled);
_worldPacket.FlushBits();
}
void HandleAuthSessionCallback(AuthSession authSession, SQLResult result)
{
// Stop if the account is not found
if (result.IsEmpty())
{
Log.outError(LogFilter.Network, "HandleAuthSession: Sent Auth Response (unknown account).");
CloseSocket();
return;
}
AccountInfo account = new AccountInfo(result.GetFields());
// For hook purposes, we get Remoteaddress at this point.
string address = GetRemoteIpAddress().ToString();
byte[] clientSeed = ClientTypeSeed_Win;
if (account.game.OS == "Wn64")
{
clientSeed = ClientTypeSeed_Wn64;
}
else if (account.game.OS == "Mc64")
{
clientSeed = ClientTypeSeed_Mc64;
}
Sha256 digestKeyHash = new Sha256();
digestKeyHash.Process(account.game.SessionKey, account.game.SessionKey.Length);
digestKeyHash.Finish(clientSeed, clientSeed.Length);
HmacSha256 hmac = new HmacSha256(digestKeyHash.Digest);
hmac.Process(authSession.LocalChallenge, authSession.LocalChallenge.Count);
hmac.Process(_serverChallenge, 16);
hmac.Finish(AuthCheckSeed, 16);
// Check that Key and account name are the same on client and server
if (!hmac.Digest.Compare(authSession.Digest))
{
Log.outError(LogFilter.Network, "WorldSocket.HandleAuthSession: Authentication failed for account: {0} ('{1}') address: {2}", account.game.Id, authSession.RealmJoinTicket, address);
CloseSocket();
return;
}
Sha256 keyData = new Sha256();
keyData.Finish(account.game.SessionKey, account.game.SessionKey.Length);
HmacSha256 sessionKeyHmac = new HmacSha256(keyData.Digest);
sessionKeyHmac.Process(_serverChallenge, 16);
sessionKeyHmac.Process(authSession.LocalChallenge, authSession.LocalChallenge.Count);
sessionKeyHmac.Finish(SessionKeySeed, 16);
_sessionKey = new byte[40];
var sessionKeyGenerator = new SessionKeyGenerator(sessionKeyHmac.Digest, 32);
sessionKeyGenerator.Generate(_sessionKey, 40);
// As we don't know if attempted login process by ip works, we update last_attempt_ip right away
PreparedStatement stmt = DB.Login.GetPreparedStatement(LoginStatements.UPD_LAST_ATTEMPT_IP);
stmt.AddValue(0, address);
stmt.AddValue(1, authSession.RealmJoinTicket);
DB.Login.Execute(stmt);
// This also allows to check for possible "hack" attempts on account
stmt = DB.Login.GetPreparedStatement(LoginStatements.UPD_ACCOUNT_INFO_CONTINUED_SESSION);
stmt.AddValue(0, _sessionKey.ToHexString());
stmt.AddValue(1, account.game.Id);
DB.Login.Execute(stmt);
// First reject the connection if packet contains invalid data or realm state doesn't allow logging in
if (Global.WorldMgr.IsClosed())
{
SendAuthResponseError(BattlenetRpcErrorCode.Denied);
Log.outError(LogFilter.Network, "WorldSocket.HandleAuthSession: World closed, denying client ({0}).", GetRemoteIpAddress());
CloseSocket();
return;
}
if (authSession.RealmID != Global.WorldMgr.GetRealm().Id.Realm)
{
SendAuthResponseError(BattlenetRpcErrorCode.Denied);
Log.outError(LogFilter.Network, "WorldSocket.HandleAuthSession: Client {0} requested connecting with realm id {1} but this realm has id {2} set in config.",
GetRemoteIpAddress().ToString(), authSession.RealmID, Global.WorldMgr.GetRealm().Id.Realm);
CloseSocket();
return;
}
// Must be done before WorldSession is created
bool wardenActive = WorldConfig.GetBoolValue(WorldCfg.WardenEnabled);
if (wardenActive && account.game.OS != "Win" && account.game.OS != "Wn64" && account.game.OS != "Mc64")
{
SendAuthResponseError(BattlenetRpcErrorCode.Denied);
Log.outError(LogFilter.Network, "WorldSocket.HandleAuthSession: Client {0} attempted to log in using invalid client OS ({1}).", address, account.game.OS);
CloseSocket();
return;
}
//Re-check ip locking (same check as in auth).
if (account.battleNet.IsLockedToIP) // if ip is locked
{
if (account.battleNet.LastIP != address)
{
SendAuthResponseError(BattlenetRpcErrorCode.RiskAccountLocked);
Log.outDebug(LogFilter.Network, "HandleAuthSession: Sent Auth Response (Account IP differs).");
CloseSocket();
return;
}
}
else if (!account.battleNet.LockCountry.IsEmpty() && account.battleNet.LockCountry != "00" && !_ipCountry.IsEmpty())
{
if (account.battleNet.LockCountry != _ipCountry)
{
SendAuthResponseError(BattlenetRpcErrorCode.RiskAccountLocked);
Log.outDebug(LogFilter.Network, "WorldSocket.HandleAuthSession: Sent Auth Response (Account country differs. Original country: {0}, new country: {1}).", account.battleNet.LockCountry, _ipCountry);
CloseSocket();
return;
}
}
long mutetime = account.game.MuteTime;
//! Negative mutetime indicates amount of seconds to be muted effective on next login - which is now.
if (mutetime < 0)
{
mutetime = Time.UnixTime + mutetime;
stmt = DB.Login.GetPreparedStatement(LoginStatements.UPD_MUTE_TIME_LOGIN);
stmt.AddValue(0, mutetime);
stmt.AddValue(1, account.game.Id);
DB.Login.Execute(stmt);
}
if (account.IsBanned()) // if account banned
{
SendAuthResponseError(BattlenetRpcErrorCode.GameAccountBanned);
Log.outError(LogFilter.Network, "WorldSocket:HandleAuthSession: Sent Auth Response (Account banned).");
CloseSocket();
return;
}
// Check locked state for server
AccountTypes allowedAccountType = Global.WorldMgr.GetPlayerSecurityLimit();
if (allowedAccountType > AccountTypes.Player && account.game.Security < allowedAccountType)
{
SendAuthResponseError(BattlenetRpcErrorCode.ServerIsPrivate);
Log.outInfo(LogFilter.Network, "WorldSocket:HandleAuthSession: User tries to login but his security level is not enough");
CloseSocket();
return;
}
Log.outDebug(LogFilter.Network, "WorldSocket:HandleAuthSession: Client '{0}' authenticated successfully from {1}.", authSession.RealmJoinTicket, address);
// Update the last_ip in the database
stmt = DB.Login.GetPreparedStatement(LoginStatements.UPD_LAST_IP);
stmt.AddValue(0, address);
stmt.AddValue(1, authSession.RealmJoinTicket);
DB.Login.Execute(stmt);
_worldSession = new WorldSession(account.game.Id, authSession.RealmJoinTicket, account.battleNet.Id, this, account.game.Security, (Expansion)account.game.Expansion,
mutetime, account.game.OS, account.battleNet.Locale, account.game.Recruiter, account.game.IsRectuiter);
// Initialize Warden system only if it is enabled by config
//if (wardenActive)
//_worldSession.InitWarden(_sessionKey);
_queryProcessor.AddQuery(_worldSession.LoadPermissionsAsync().WithCallback(LoadSessionPermissionsCallback));
}