hide seed...
module HWProtoNEState where
import qualified Data.IntMap as IntMap
import Data.Maybe
import Data.List
import Data.Word
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import CoreTypes
import Actions
import Utils
handleCmd_NotEntered :: CmdHandler
handleCmd_NotEntered clID clients _ ["NICK", newNick]
| not . null $ nick client = [ProtocolError "Nickname already chosen"]
| haveSameNick = [AnswerThisClient ["WARNING", "Nickname already in use"], ByeClient ""]
| illegalName newNick = [ByeClient "Illegal nickname"]
| otherwise =
ModifyClient (\c -> c{nick = newNick}) :
AnswerThisClient ["NICK", newNick] :
[CheckRegistered | clientProto client /= 0]
where
client = clients IntMap.! clID
haveSameNick = isJust $ find (\cl -> newNick == nick cl) $ IntMap.elems clients
handleCmd_NotEntered clID clients _ ["PROTO", protoNum]
| clientProto client > 0 = [ProtocolError "Protocol already known"]
| parsedProto == 0 = [ProtocolError "Bad number"]
| otherwise =
ModifyClient (\c -> c{clientProto = parsedProto}) :
AnswerThisClient ["PROTO", show parsedProto] :
[CheckRegistered | (not . null) (nick client)]
where
client = clients IntMap.! clID
parsedProto = fromMaybe 0 (maybeRead protoNum :: Maybe Word16)
handleCmd_NotEntered clID clients _ ["PASSWORD", passwd] =
if passwd == webPassword client then
[ModifyClient (\cl -> cl{logonPassed = True}),
MoveToLobby] ++ adminNotice
else
[ByeClient "Authentication failed"]
where
client = clients IntMap.! clID
adminNotice = [AnswerThisClient ["ADMIN_ACCESS"] | isAdministrator client]
handleCmd_NotEntered clID clients _ ["DUMP"] =
if isAdministrator (clients IntMap.! clID) then [Dump] else []
handleCmd_NotEntered clID _ _ _ = [ProtocolError "Incorrect command (state: not entered)"]