gameServer/HWProtoNEState.hs
author nemo
Thu, 25 Jun 2009 10:50:44 +0000
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module HWProtoNEState where
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import qualified Data.IntMap as IntMap
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import Maybe
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import Data.List
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import Data.Word
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--------------------------------------
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import CoreTypes
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import Actions
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import Utils
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handleCmd_NotEntered :: CmdHandler
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handleCmd_NotEntered clID clients _ ["NICK", newNick] =
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	if not . null $ nick client then
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		[ProtocolError "Nickname already chosen"]
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	else if haveSameNick then
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		[AnswerThisClient ["WARNING", "Nickname collision"]]
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		++ [ByeClient ""]
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	else if illegalName newNick then
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		[ByeClient "Illegal nickname"]
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	else
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		[ModifyClient (\c -> c{nick = newNick}),
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		AnswerThisClient ["NICK", newNick]]
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		++ checkPassword
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	where
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		client = clients IntMap.! clID
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		haveSameNick = isJust $ find (\cl -> newNick == nick cl) $ IntMap.elems clients
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		checkPassword = if clientProto client /= 0 then [CheckRegistered] else []
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handleCmd_NotEntered clID clients _ ["PROTO", protoNum] =
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	if clientProto client > 0 then
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		[ProtocolError "Protocol already known"]
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	else if parsedProto == 0 then
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		[ProtocolError "Bad number"]
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	else
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		[ModifyClient (\c -> c{clientProto = parsedProto}),
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		AnswerThisClient ["PROTO", show parsedProto]]
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		++ checkPassword
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	where
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		client = clients IntMap.! clID
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		parsedProto = fromMaybe 0 (maybeRead protoNum :: Maybe Word16)
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		checkPassword = if (not . null) (nick client) then [CheckRegistered] else []
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handleCmd_NotEntered clID clients _ ["PASSWORD", passwd] =
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	if passwd == webPassword client then
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		[ModifyClient (\cl -> cl{logonPassed = True}),
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		MoveToLobby] ++ adminNotice
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	else
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		[ByeClient "Authentication failed"]
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	where
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		client = clients IntMap.! clID
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		adminNotice = if isAdministrator client then [AnswerThisClient ["ADMIN_ACCESS"]] else []
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--handleCmd_NotEntered _ _ _ ["DUMP"] =
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--	[Dump]
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handleCmd_NotEntered clID _ _ _ = [ProtocolError "Incorrect command (state: not entered)"]