gameServer/ConfigFile.hs
author sheepluva
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{-
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 * Hedgewars, a free turn based strategy game
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 * Copyright (c) 2004-2014 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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{-# LANGUAGE RankNTypes #-}
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module ConfigFile where
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import Data.Maybe
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import Data.TConfig
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import qualified Data.ByteString.Char8 as B
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-------------------
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import CoreTypes
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cfgFileName :: String
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cfgFileName = "hedgewars-server.ini"
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readServerConfig :: ServerInfo -> IO ServerInfo
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readServerConfig serverInfo' = do
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    cfg <- readConfig cfgFileName
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    let si = serverInfo'{
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        dbHost = value "dbHost" cfg
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        , dbName = value "dbName" cfg
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        , dbLogin = value "dbLogin" cfg
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        , dbPassword = value "dbPassword" cfg
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        , serverMessage = value "sv_message" cfg
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        , serverMessageForOldVersions = value "sv_messageOld" cfg
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        , bans = read . fromJust2 "bans" $ getValue "bans" cfg
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        , latestReleaseVersion = read . fromJust $ getValue "sv_latestProto" cfg
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        , serverConfig = Just cfg
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    }
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    return si
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    where
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        value n c = B.pack . fromJust2 n $ getValue n c
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        fromJust2 n Nothing = error $ "Missing config entry " ++ n
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        fromJust2 _ (Just a) = a
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writeServerConfig :: ServerInfo -> IO ()
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writeServerConfig ServerInfo{serverConfig = Nothing} = return ()
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writeServerConfig ServerInfo{
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    dbHost = dh,
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    dbName = dn,
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    dbLogin = dl,
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    dbPassword = dp,
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    serverMessage = sm,
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    serverMessageForOldVersions = smo,
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    bans = b,
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    latestReleaseVersion = ver,
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    serverConfig = Just cfg}
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        =
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    writeConfig cfgFileName $ foldl1 (.) entries cfg
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    where
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        entries =
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            repConfig "sv_latestProto" (show ver)
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            : repConfig "bans" (show b)
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            : map (\(n, v) -> repConfig n (B.unpack v)) [
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            ("dbHost", dh)
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            , ("dbName", dn)
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            , ("dbLogin", dl)
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            , ("dbPassword", dp)
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            , ("sv_message", sm)
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            , ("sv_messageOld", smo)
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            ]