/* Makes various checks to see if client is allowed to connect.
* Returns null on success, otherwise return value contains
* discription of error.
*/
private string OkToConnect(HelloPacket pkt)
{
string retMsg = null;
ConnectedBuild = pkt.BuildVersion;
// check client version
if (!ConnectedBuild.StartsWith(clientVer))
{
ConnectionFailed(retMsg = "Wrong build version.");
}
// has valid account?
else if ((account = db.Verify(pkt.GUID, pkt.Password)) == null)
{
ConnectionFailed(retMsg = "Invalid account.");
}
// ip banned?
else if (ip.Banned)
{
ConnectionFailed(retMsg = "IP banned.");
}
// account banned?
else if (account.Banned)
{
ConnectionFailed(retMsg = "Account banned.");
}
// server full?
else if (RealmManager.Clients.Count >= RealmManager.MAX_CLIENT)
{
ConnectionFailed(retMsg = "Server full.");
}
// valid gameId?
else if (RealmManager.GetWorld(pkt.GameId) == null)
{
// invalid world... send to nexus instead
pkt.GameId = World.NEXUS_ID;
}
// account already connected? disconnect if so
else if (AccountConnected(account.AccountId))
{
ConnectionFailed(retMsg = "Account in use... ");
ClientProcessor target = RealmManager.Clients[account.AccountId];
target.Disconnect();
}
return(retMsg);
}
private bool ConnectedBuildStartsWith(string clientVer)
{
return(ConnectedBuild.StartsWith(clientVer));
}
