gameServer/HandlerUtils.hs
author Wuzzy <Wuzzy2@mail.ru>
Thu, 25 Apr 2019 23:01:05 +0200
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Prevent entering “/”, “\” and “:” in team and scheme names. The name of teams and schems is saved in the file name itself, so these characters would cause trouble as they are used in path names in Linux and Windows.
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{-
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 * Hedgewars, a free turn based strategy game
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 * Copyright (c) 2004-2015 Andrey Korotaev <unC0Rr@gmail.com>
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 *
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 * This program is free software; you can redistribute it and/or modify
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 * it under the terms of the GNU General Public License as published by
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 * the Free Software Foundation; version 2 of the License
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with this program; if not, write to the Free Software
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 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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 \-}
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module HandlerUtils where
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import Control.Monad.Reader
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import qualified Data.ByteString.Char8 as B
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import Data.List
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import RoomsAndClients
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import CoreTypes
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type CmdHandler = [B.ByteString] -> Reader (ClientIndex, IRnC) [Action]
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thisClient :: Reader (ClientIndex, IRnC) ClientInfo
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thisClient = do
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    (ci, rnc) <- ask
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    return $ rnc `client` ci
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thisRoom :: Reader (ClientIndex, IRnC) RoomInfo
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thisRoom = do
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    (ci, rnc) <- ask
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    let ri = clientRoom rnc ci
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    return $ rnc `room` ri
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clientNick :: Reader (ClientIndex, IRnC) B.ByteString
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clientNick = liftM nick thisClient
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roomOthersChans :: Reader (ClientIndex, IRnC) [ClientChan]
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roomOthersChans = do
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    (ci, rnc) <- ask
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    let ri = clientRoom rnc ci
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    return $ map (sendChan . client rnc) $ filter (/= ci) (roomClients rnc ri)
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roomSameClanChans :: Reader (ClientIndex, IRnC) [ClientChan]
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roomSameClanChans = do
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    (ci, rnc) <- ask
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    let ri = clientRoom rnc ci
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    let otherRoomClients = map (client rnc) . filter (/= ci) $ roomClients rnc ri
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    let cl = rnc `client` ci
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    let sameClanClients = Prelude.filter (\c -> clientClan c == clientClan cl) otherRoomClients
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    return $ map sendChan sameClanClients
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roomClientsChans :: Reader (ClientIndex, IRnC) [ClientChan]
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roomClientsChans = do
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    (ci, rnc) <- ask
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    let ri = clientRoom rnc ci
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    return $ map (sendChan . client rnc) (roomClients rnc ri)
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thisClientChans :: Reader (ClientIndex, IRnC) [ClientChan]
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thisClientChans = do
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    (ci, rnc) <- ask
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    return [sendChan (rnc `client` ci)]
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sameProtoChans :: Reader (ClientIndex, IRnC) [ClientChan]
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sameProtoChans = do
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    (ci, rnc) <- ask
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    let p = clientProto (rnc `client` ci)
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    return . map sendChan . filter (\c -> clientProto c == p) . map (client rnc) $ allClients rnc
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answerClient :: [B.ByteString] -> Reader (ClientIndex, IRnC) [Action]
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answerClient msg = liftM ((: []) . flip AnswerClients msg) thisClientChans
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allRoomInfos :: Reader (a, IRnC) [RoomInfo]
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allRoomInfos = liftM ((\irnc -> map (room irnc) $ allRooms irnc) . snd) ask
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clientByNick :: B.ByteString -> Reader (ClientIndex, IRnC) (Maybe ClientIndex)
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clientByNick n = do
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    (_, rnc) <- ask
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    let allClientIDs = allClients rnc
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    return $ find (\clId -> let cl = client rnc clId in n == nick cl && not (isChecker cl)) allClientIDs
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roomAdminOnly :: Reader (ClientIndex, IRnC) [Action] -> Reader (ClientIndex, IRnC) [Action]
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roomAdminOnly h = thisClient >>= \cl -> if isMaster cl then h else return []
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serverAdminOnly :: Reader (ClientIndex, IRnC) [Action] -> Reader (ClientIndex, IRnC) [Action]
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serverAdminOnly h = thisClient >>= \cl -> if isAdministrator cl then h else return []