gameServer/NetRoutines.hs
author nemo
Mon, 08 Dec 2014 09:35:14 -0500
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Use FreeAndNil across the board. Even if we are immediately assigning after, probably avoids accidental mistakes. Also free neglected owner tex on shutdown, and delete hog gears using the normal deletion procedure if for any reason they still exist (EndGame call?).
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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 ScopedTypeVariables, OverloadedStrings #-}
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module NetRoutines where
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import Network.Socket
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import Control.Concurrent.Chan
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import Data.Time
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import Control.Monad
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import Data.Unique
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import qualified Codec.Binary.Base64 as Base64
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import qualified Data.ByteString as BW
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import qualified Data.ByteString.Char8 as B
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import qualified Control.Exception as E
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import System.Entropy
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-----------------------------
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import CoreTypes
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import Utils
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acceptLoop :: Socket -> Chan CoreMessage -> IO ()
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acceptLoop servSock chan = E.bracket openHandle closeHandle f
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    where
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    f ch = forever $
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        do
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        (sock, sockAddr) <- Network.Socket.accept servSock
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        clientHost <- sockAddr2String sockAddr
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        currentTime <- getCurrentTime
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        sendChan' <- newChan
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        uid <- newUnique
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        salt <- liftM (B.pack . Base64.encode . BW.unpack) $ hGetEntropy ch 18
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        let newClient =
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                (ClientInfo
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                    uid
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                    sendChan'
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                    sock
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                    clientHost
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                    currentTime
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                    ""
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                    ""
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                    salt
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                    False
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                    False
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                    0
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                    0
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                    False
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                    False
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                    False
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                    False
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                    False
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                    False
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                    False
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                    False
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                    Nothing
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                    Nothing
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                    newEventsInfo
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                    newEventsInfo
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                    newEventsInfo
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                    0
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                    )
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        writeChan chan $ Accept newClient
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        return ()