gameServer/OfficialServer/extdbinterface.hs
author Henek
Tue, 28 Dec 2010 23:53:37 +0100
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child 4906 22cc9c2b5ae5
permissions -rw-r--r--
sudden death, now with visual and audial effects :D
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{-# LANGUAGE ScopedTypeVariables #-}
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module Main where
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import Prelude hiding (catch)
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import Control.Monad
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import Control.Exception
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import System.IO
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import Maybe
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import Database.HDBC
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import Database.HDBC.MySQL
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--------------------------
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import CoreTypes
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dbQueryAccount =
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    "SELECT users.pass, users_roles.rid FROM users LEFT JOIN users_roles ON users.uid = users_roles.uid WHERE users.name = ?"
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dbQueryStats =
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    "UPDATE gameserver_stats SET players = ?, rooms = ?, last_update = UNIX_TIMESTAMP()"
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dbInteractionLoop dbConn = forever $ do
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    q <- (getLine >>= return . read)
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    hPutStrLn stderr $ show q
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    case q of
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        CheckAccount clUid clNick _ -> do
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                statement <- prepare dbConn dbQueryAccount
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                execute statement [SqlString $ clNick]
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                passAndRole <- fetchRow statement
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                finish statement
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                let response = 
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                        if isJust passAndRole then
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                        (
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                            clUid,
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                            HasAccount
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                                (fromSql $ head $ fromJust $ passAndRole)
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                                ((fromSql $ last $ fromJust $ passAndRole) == (Just (3 :: Int)))
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                        )
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                        else
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                        (clUid, Guest)
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                putStrLn (show response)
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                hFlush stdout
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        SendStats clients rooms ->
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                run dbConn dbQueryStats [SqlInt32 $ fromIntegral clients, SqlInt32 $ fromIntegral rooms] >> return ()
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dbConnectionLoop mySQLConnectionInfo =
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    Control.Exception.handle (\(_ :: IOException) -> return ()) $ handleSqlError $
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        bracket
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            (connectMySQL mySQLConnectionInfo)
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            (disconnect)
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            (dbInteractionLoop)
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processRequest :: DBQuery -> IO String
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processRequest (CheckAccount clUid clNick clHost) = return $ show (clUid, Guest)
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main = do
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        dbHost <- getLine
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        dbLogin <- getLine
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        dbPassword <- getLine
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        let mySQLConnectInfo = defaultMySQLConnectInfo {mysqlHost = dbHost, mysqlDatabase = "hedge_main", mysqlUser = dbLogin, mysqlPassword = dbPassword}
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        dbConnectionLoop mySQLConnectInfo