gameServer/Actions.hs
author nemo
Wed, 19 May 2010 13:08:59 +0000
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permissions -rw-r--r--
claymore says that this needs to be 44.1 for some systems
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module Actions where
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import Control.Concurrent
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import Control.Concurrent.Chan
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import qualified Data.IntSet as IntSet
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import qualified Data.Sequence as Seq
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import System.Log.Logger
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import Monad
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import Data.Time
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import Maybe
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import Control.Monad.Reader
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import Control.Monad.State
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-----------------------------
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import CoreTypes
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import Utils
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import ClientIO
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import ServerState
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data Action =
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    AnswerClients [ClientChan] [String]
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    | SendServerMessage
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    | SendServerVars
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    | RoomAddThisClient RoomIndex -- roomID
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    | RoomRemoveThisClient String
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    | RemoveTeam String
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    | RemoveRoom
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    | UnreadyRoomClients
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    | MoveToLobby
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    | ProtocolError String
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    | Warning String
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    | ByeClient String
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    | KickClient ClientIndex -- clID
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    | KickRoomClient ClientIndex -- clID
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    | BanClient String -- nick
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    | RemoveClientTeams ClientIndex -- clID
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    | ModifyClient (ClientInfo -> ClientInfo)
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    | ModifyClient2 ClientIndex (ClientInfo -> ClientInfo)
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    | ModifyRoom (RoomInfo -> RoomInfo)
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    | ModifyServerInfo (ServerInfo -> ServerInfo)
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    | AddRoom String String
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    | CheckRegistered
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    | ClearAccountsCache
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    | ProcessAccountInfo AccountInfo
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    | Dump
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    | AddClient ClientInfo
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    | PingAll
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    | StatsAction
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type CmdHandler = [String] -> Reader (ClientIndex, IRnC) [Action]
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processAction :: Action -> StateT ServerState IO ()
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processAction (AnswerClients chans msg) = 
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    liftIO $ mapM_ (flip writeChan msg) chans
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{-
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processAction (clID, serverInfo, rnc) SendServerMessage = do
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    writeChan (sendChan $ clients ! clID) ["SERVER_MESSAGE", message serverInfo]
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    return (clID, serverInfo, rnc)
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    where
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        client = clients ! clID
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        message si = if clientProto client < latestReleaseVersion si then
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            serverMessageForOldVersions si
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            else
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            serverMessage si
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processAction (clID, serverInfo, rnc) SendServerVars = do
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    writeChan (sendChan $ clients ! clID) ("SERVER_VARS" : vars)
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    return (clID, serverInfo, rnc)
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    where
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        client = clients ! clID
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        vars = [
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            "MOTD_NEW", serverMessage serverInfo,
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            "MOTD_OLD", serverMessageForOldVersions serverInfo,
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            "LATEST_PROTO", show $ latestReleaseVersion serverInfo
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            ]
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processAction (clID, serverInfo, rnc) (ProtocolError msg) = do
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    writeChan (sendChan $ clients ! clID) ["ERROR", msg]
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    return (clID, serverInfo, rnc)
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processAction (clID, serverInfo, rnc) (Warning msg) = do
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    writeChan (sendChan $ clients ! clID) ["WARNING", msg]
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    return (clID, serverInfo, rnc)
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-}
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processAction (ByeClient msg) = do
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    (Just ci) <- gets clientIndex
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    rnc <- gets roomsClients
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    ri <- clientRoomA
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    when (ri /= lobbyId) $ do
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        processAction $ RoomRemoveThisClient ("quit: " ++ msg)
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        return ()
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    chan <- clients sendChan
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    liftIO $ do
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        infoM "Clients" (show ci ++ " quits: " ++ msg)
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        --mapM_ (processAction (ci, serverInfo, rnc)) $ answerOthersQuit ++ answerInformRoom
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        writeChan chan ["BYE", msg]
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        modifyRoom rnc (\r -> r{
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                        --playersIDs = IntSet.delete ci (playersIDs r)
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                        playersIn = (playersIn r) - 1
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                        --readyPlayers = if isReady client then readyPlayers r - 1 else readyPlayers r
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                        }) ri
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{-
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    where
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        client = clients ! clID
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        clientNick = nick client
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        answerInformRoom =
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            if roomID client /= 0 then
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                if not $ Prelude.null msg then
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                    [AnswerThisRoom ["LEFT", clientNick, msg]]
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                else
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                    [AnswerThisRoom ["LEFT", clientNick]]
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            else
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                []
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        answerOthersQuit =
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            if logonPassed client then
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                if not $ Prelude.null msg then
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                    [AnswerAll ["LOBBY:LEFT", clientNick, msg]]
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                else
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                    [AnswerAll ["LOBBY:LEFT", clientNick]]
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            else
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            [] 
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-}
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processAction (ModifyClient f) = do
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    (Just ci) <- gets clientIndex
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    rnc <- gets roomsClients
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    liftIO $ modifyClient rnc f ci
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    return ()
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processAction (ModifyRoom f) = do
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    rnc <- gets roomsClients
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    ri <- clientRoomA
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    liftIO $ modifyRoom rnc f ri
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    return ()
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{-
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processAction (clID, serverInfo, rnc) (ModifyServerInfo func) =
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    return (clID, func serverInfo, rnc)
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processAction (clID, serverInfo, rnc) (RoomAddThisClient rID) =
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    processAction (
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        clID,
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        serverInfo,
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        adjust (\cl -> cl{roomID = rID, teamsInGame = if rID == 0 then teamsInGame cl else 0}) clID clients,
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        adjust (\r -> r{playersIDs = IntSet.insert clID (playersIDs r), playersIn = (playersIn r) + 1}) rID $
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            adjust (\r -> r{playersIDs = IntSet.delete clID (playersIDs r)}) 0 rooms
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        ) joinMsg
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    where
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        client = clients ! clID
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        joinMsg = if rID == 0 then
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                AnswerAllOthers ["LOBBY:JOINED", nick client]
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            else
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                AnswerThisRoom ["JOINED", nick client]
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processAction (clID, serverInfo, rnc) (RoomRemoveThisClient msg) = do
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    (_, _, newClients, newRooms) <-
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        if roomID client /= 0 then
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            if isMaster client then
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                if (gameinprogress room) && (playersIn room > 1) then
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                    (changeMaster >>= (\state -> foldM processAction state
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                        [AnswerOthersInRoom ["LEFT", nick client, msg],
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                        AnswerOthersInRoom ["WARNING", "Admin left the room"],
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                        RemoveClientTeams clID]))
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                else -- not in game
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                    processAction (clID, serverInfo, rnc) RemoveRoom
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            else -- not master
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   185
                foldM
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                    processAction
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                        (clID, serverInfo, rnc)
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                        [AnswerOthersInRoom ["LEFT", nick client, msg],
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                        RemoveClientTeams clID]
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   190
        else -- in lobby
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            return (clID, serverInfo, rnc)
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   192
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    return (
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   194
        clID,
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   195
        serverInfo,
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   196
        adjust resetClientFlags clID newClients,
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   197
        adjust removeClientFromRoom rID $ adjust insertClientToRoom 0 newRooms
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   198
        )
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   199
    where
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   200
        rID = roomID client
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   201
        client = clients ! clID
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   202
        room = rooms ! rID
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   203
        resetClientFlags cl = cl{roomID = 0, isMaster = False, isReady = False, teamsInGame = undefined}
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   204
        removeClientFromRoom r = r{
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   205
                playersIDs = otherPlayersSet,
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   206
                playersIn = (playersIn r) - 1,
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   207
                readyPlayers = if isReady client then (readyPlayers r) - 1 else readyPlayers r
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   208
                }
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   209
        insertClientToRoom r = r{playersIDs = IntSet.insert clID (playersIDs r)}
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   210
        changeMaster = do
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   211
            processAction (newMasterId, serverInfo, rnc) $ AnswerThisClient ["ROOM_CONTROL_ACCESS", "1"]
2867
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   212
            return (
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   213
                clID,
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diff changeset
   214
                serverInfo,
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diff changeset
   215
                adjust (\cl -> cl{isMaster = True}) newMasterId clients,
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diff changeset
   216
                adjust (\r -> r{masterID = newMasterId, name = newRoomName}) rID rooms
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diff changeset
   217
                )
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   218
        newRoomName = nick newMasterClient
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   219
        otherPlayersSet = IntSet.delete clID (playersIDs room)
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   220
        newMasterId = IntSet.findMin otherPlayersSet
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   221
        newMasterClient = clients ! newMasterId
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   222
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   223
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   224
processAction (clID, serverInfo, rnc) (AddRoom roomName roomPassword) = do
2867
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   225
    let newServerInfo = serverInfo {nextRoomID = newID}
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diff changeset
   226
    let room = newRoom{
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   227
            roomUID = newID,
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   228
            masterID = clID,
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   229
            name = roomName,
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   230
            password = roomPassword,
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   231
            roomProto = (clientProto client)
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   232
            }
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   233
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   234
    processAction (clID, serverInfo, rnc) $ AnswerLobby ["ROOM", "ADD", roomName]
1804
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diff changeset
   235
2867
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   236
    processAction (
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   237
        clID,
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diff changeset
   238
        newServerInfo,
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diff changeset
   239
        adjust (\cl -> cl{isMaster = True}) clID clients,
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diff changeset
   240
        insert newID room rooms
9be6693c78cb - Unbreak support for client versions prior to 0.9.13-dev
unc0rr
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diff changeset
   241
        ) $ RoomAddThisClient newID
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   242
    where
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   243
        newID = (nextRoomID serverInfo) - 1
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   244
        client = clients ! clID
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   245
4e78ad846fb6 New game server:
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   246
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   247
processAction (clID, serverInfo, rnc) (RemoveRoom) = do
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   248
    processAction (clID, serverInfo, rnc) $ AnswerLobby ["ROOM", "DEL", name room]
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   249
    processAction (clID, serverInfo, rnc) $ AnswerOthersInRoom ["ROOMABANDONED", name room]
2867
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   250
    return (clID,
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diff changeset
   251
        serverInfo,
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   252
        Data.IntMap.map (\cl -> if roomID cl == rID then cl{roomID = 0, isMaster = False, isReady = False, teamsInGame = undefined} else cl) clients,
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   253
        delete rID $ adjust (\r -> r{playersIDs = IntSet.union (playersIDs room) (playersIDs r)}) 0 rooms
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diff changeset
   254
        )
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diff changeset
   255
    where
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   256
        room = rooms ! rID
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   257
        rID = roomID client
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   258
        client = clients ! clID
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   259
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diff changeset
   260
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   261
processAction (clID, serverInfo, rnc) (UnreadyRoomClients) = do
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   262
    processAction (clID, serverInfo, rnc) $ AnswerThisRoom ("NOT_READY" : roomPlayers)
2867
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   263
    return (clID,
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   264
        serverInfo,
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   265
        Data.IntMap.map (\cl -> if roomID cl == rID then cl{isReady = False} else cl) clients,
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   266
        adjust (\r -> r{readyPlayers = 0}) rID rooms)
9be6693c78cb - Unbreak support for client versions prior to 0.9.13-dev
unc0rr
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diff changeset
   267
    where
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diff changeset
   268
        room = rooms ! rID
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   269
        rID = roomID client
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   270
        client = clients ! clID
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   271
        roomPlayers = Prelude.map (nick . (clients !)) roomPlayersIDs
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   272
        roomPlayersIDs = IntSet.elems $ playersIDs room
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   273
1b9e33623b7e Implement 'roundfinished' cmd on net server
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parents: 1804
diff changeset
   274
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   275
processAction (clID, serverInfo, rnc) (RemoveTeam teamName) = do
2948
3f21a9dc93d0 Replace tabs with spaces using 'expand -t 4' command
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   276
    newRooms <- if not $ gameinprogress room then
2867
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   277
            do
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   278
            processAction (clID, serverInfo, rnc) $ AnswerOthersInRoom ["REMOVE_TEAM", teamName]
2867
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   279
            return $
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   280
                adjust (\r -> r{teams = Prelude.filter (\t -> teamName /= teamname t) $ teams r}) rID rooms
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diff changeset
   281
        else
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   282
            do
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   283
            processAction (clID, serverInfo, rnc) $ AnswerOthersInRoom ["EM", rmTeamMsg]
2867
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   284
            return $
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diff changeset
   285
                adjust (\r -> r{
9be6693c78cb - Unbreak support for client versions prior to 0.9.13-dev
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   286
                teams = Prelude.filter (\t -> teamName /= teamname t) $ teams r,
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   287
                leftTeams = teamName : leftTeams r,
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diff changeset
   288
                roundMsgs = roundMsgs r Seq.|> rmTeamMsg
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diff changeset
   289
                }) rID rooms
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   290
    return (clID, serverInfo, clients, newRooms)
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diff changeset
   291
    where
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   292
        room = rooms ! rID
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   293
        rID = roomID client
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   294
        client = clients ! clID
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   295
        rmTeamMsg = toEngineMsg $ 'F' : teamName
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   296
-}
1813
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unc0rr
parents: 1811
diff changeset
   297
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diff changeset
   298
processAction CheckRegistered = do
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diff changeset
   299
    (Just ci) <- gets clientIndex
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diff changeset
   300
    n <- clients nick
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diff changeset
   301
    h <- clients host
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diff changeset
   302
    db <- gets (dbQueries . serverInfo)
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diff changeset
   303
    liftIO $ writeChan db $ CheckAccount ci n h
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diff changeset
   304
    return ()
1834
71cb978dc85f Add working check for www account existance
unc0rr
parents: 1827
diff changeset
   305
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diff changeset
   306
{-
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   307
processAction (clID, serverInfo, rnc) (ClearAccountsCache) = do
2867
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diff changeset
   308
    writeChan (dbQueries serverInfo) ClearCache
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diff changeset
   309
    return (clID, serverInfo, rnc)
2867
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diff changeset
   310
    where
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diff changeset
   311
        client = clients ! clID
2155
d897222d3339 Implement ability for server admin to clear accounts cache
unc0rr
parents: 2126
diff changeset
   312
d897222d3339 Implement ability for server admin to clear accounts cache
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   313
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   314
processAction (clID, serverInfo, rnc) (Dump) = do
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   315
    writeChan (sendChan $ clients ! clID) ["DUMP", show serverInfo, showTree clients, showTree rooms]
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   316
    return (clID, serverInfo, rnc)
1804
4e78ad846fb6 New game server:
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parents:
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   317
1841
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diff changeset
   318
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   319
processAction (clID, serverInfo, rnc) (ProcessAccountInfo info) =
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   320
    case info of
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   321
        HasAccount passwd isAdmin -> do
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   322
            infoM "Clients" $ show clID ++ " has account"
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   323
            writeChan (sendChan $ clients ! clID) ["ASKPASSWORD"]
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   324
            return (clID, serverInfo, adjust (\cl -> cl{webPassword = passwd, isAdministrator = isAdmin}) clID rnc)
2867
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   325
        Guest -> do
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   326
            infoM "Clients" $ show clID ++ " is guest"
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   327
            processAction (clID, serverInfo, adjust (\cl -> cl{logonPassed = True}) clID rnc) MoveToLobby
2867
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   328
        Admin -> do
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   329
            infoM "Clients" $ show clID ++ " is admin"
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   330
            foldM processAction (clID, serverInfo, adjust (\cl -> cl{logonPassed = True, isAdministrator = True}) clID rnc) [MoveToLobby, AnswerThisClient ["ADMIN_ACCESS"]]
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   331
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   332
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   333
processAction (clID, serverInfo, rnc) (MoveToLobby) =
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   334
    foldM processAction (clID, serverInfo, rnc) $
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   335
        (RoomAddThisClient 0)
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   336
        : answerLobbyNicks
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   337
        ++ [SendServerMessage]
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0ebcc98ebc1a Send server message after nicks info (more chance for it to be seen)
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   338
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   339
        -- ++ (answerServerMessage client clients)
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   340
    where
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   341
        lobbyNicks = Prelude.map nick $ Prelude.filter logonPassed $ elems clients
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   342
        answerLobbyNicks = [AnswerThisClient ("LOBBY:JOINED": lobbyNicks) | not $ Prelude.null lobbyNicks]
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   343
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diff changeset
   344
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   345
processAction (clID, serverInfo, rnc) (KickClient kickID) =
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   346
    liftM2 replaceID (return clID) (processAction (kickID, serverInfo, rnc) $ ByeClient "Kicked")
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diff changeset
   347
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   348
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   349
processAction (clID, serverInfo, rnc) (BanClient banNick) =
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   350
    return (clID, serverInfo, rnc)
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diff changeset
   351
1879
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parents: 1866
diff changeset
   352
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   353
processAction (clID, serverInfo, rnc) (KickRoomClient kickID) = do
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   354
    writeChan (sendChan $ clients ! kickID) ["KICKED"]
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   355
    liftM2 replaceID (return clID) (processAction (kickID, serverInfo, rnc) $ RoomRemoveThisClient "kicked")
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diff changeset
   356
bb114339eb4e Implement kick from room
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parents: 1866
diff changeset
   357
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   358
processAction (clID, serverInfo, rnc) (RemoveClientTeams teamsClID) =
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   359
    liftM2 replaceID (return clID) $
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   360
        foldM processAction (teamsClID, serverInfo, rnc) removeTeamsActions
2867
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diff changeset
   361
    where
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diff changeset
   362
        client = clients ! teamsClID
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   363
        room = rooms ! (roomID client)
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diff changeset
   364
        teamsToRemove = Prelude.filter (\t -> teamowner t == nick client) $ teams room
9be6693c78cb - Unbreak support for client versions prior to 0.9.13-dev
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parents: 2662
diff changeset
   365
        removeTeamsActions = Prelude.map (RemoveTeam . teamname) teamsToRemove
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diff changeset
   366
-}
1926
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parents: 1925
diff changeset
   367
3451
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diff changeset
   368
processAction (AddClient client) = do
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diff changeset
   369
    rnc <- gets roomsClients
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diff changeset
   370
    si <- gets serverInfo
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diff changeset
   371
    liftIO $ do
62089ccec75c Uses StateT monad instead of manually maintaining the state
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diff changeset
   372
        ci <- addClient rnc client
62089ccec75c Uses StateT monad instead of manually maintaining the state
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diff changeset
   373
        forkIO $ clientRecvLoop (clientHandle client) (coreChan si) ci
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diff changeset
   374
        forkIO $ clientSendLoop (clientHandle client) (coreChan si) (sendChan client) ci
62089ccec75c Uses StateT monad instead of manually maintaining the state
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parents: 3436
diff changeset
   375
62089ccec75c Uses StateT monad instead of manually maintaining the state
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diff changeset
   376
        infoM "Clients" (show ci ++ ": New client. Time: " ++ show (connectTime client))
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diff changeset
   377
        writeChan (sendChan client) ["CONNECTED", "Hedgewars server http://www.hedgewars.org/"]
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parents: 3283
diff changeset
   378
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diff changeset
   379
{-        let newLogins = takeWhile (\(_ , time) -> (connectTime client) `diffUTCTime` time <= 11) $ lastLogins serverInfo
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cb46fbdcaa41 Add simple DoS protection mechanism (although better than previous server had)
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parents: 1925
diff changeset
   380
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diff changeset
   381
        if False && (isJust $ host client `Prelude.lookup` newLogins) then
62089ccec75c Uses StateT monad instead of manually maintaining the state
unc0rr
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diff changeset
   382
            processAction (ci, serverInfo{lastLogins = newLogins}, rnc) $ ByeClient "Reconnected too fast"
62089ccec75c Uses StateT monad instead of manually maintaining the state
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diff changeset
   383
            else
62089ccec75c Uses StateT monad instead of manually maintaining the state
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diff changeset
   384
            return (ci, serverInfo)
62089ccec75c Uses StateT monad instead of manually maintaining the state
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parents: 3436
diff changeset
   385
-}
62089ccec75c Uses StateT monad instead of manually maintaining the state
unc0rr
parents: 3436
diff changeset
   386
3458
11cd56019f00 Make some more protocol commands work
unc0rr
parents: 3452
diff changeset
   387
    
3451
62089ccec75c Uses StateT monad instead of manually maintaining the state
unc0rr
parents: 3436
diff changeset
   388
1927
e2031906a347 Ping clients every 30 seconds. Disconnection due to ping timeout to be implemented.
unc0rr
parents: 1926
diff changeset
   389
3435
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parents: 3425
diff changeset
   390
{-
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diff changeset
   391
processAction (clID, serverInfo, rnc) PingAll = do
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diff changeset
   392
    (_, _, newClients, newRooms) <- foldM kickTimeouted (clID, serverInfo, rnc) $ elems clients
2867
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diff changeset
   393
    processAction (clID,
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parents: 2662
diff changeset
   394
        serverInfo,
9be6693c78cb - Unbreak support for client versions prior to 0.9.13-dev
unc0rr
parents: 2662
diff changeset
   395
        Data.IntMap.map (\cl -> cl{pingsQueue = pingsQueue cl + 1}) newClients,
9be6693c78cb - Unbreak support for client versions prior to 0.9.13-dev
unc0rr
parents: 2662
diff changeset
   396
        newRooms) $ AnswerAll ["PING"]
9be6693c78cb - Unbreak support for client versions prior to 0.9.13-dev
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diff changeset
   397
    where
3425
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parents: 3283
diff changeset
   398
        kickTimeouted (clID, serverInfo, rnc) client =
2867
9be6693c78cb - Unbreak support for client versions prior to 0.9.13-dev
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parents: 2662
diff changeset
   399
            if pingsQueue client > 0 then
3425
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diff changeset
   400
                processAction (clientUID client, serverInfo, rnc) $ ByeClient "Ping timeout"
2867
9be6693c78cb - Unbreak support for client versions prior to 0.9.13-dev
unc0rr
parents: 2662
diff changeset
   401
                else
3425
ead2ed20dfd4 Start the server refactoring
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diff changeset
   402
                return (clID, serverInfo, rnc)
2172
80d34c0b9dfe Implement sending gameserver stats to webserver
unc0rr
parents: 2155
diff changeset
   403
80d34c0b9dfe Implement sending gameserver stats to webserver
unc0rr
parents: 2155
diff changeset
   404
3425
ead2ed20dfd4 Start the server refactoring
unc0rr
parents: 3283
diff changeset
   405
processAction (clID, serverInfo, rnc) (StatsAction) = do
2867
9be6693c78cb - Unbreak support for client versions prior to 0.9.13-dev
unc0rr
parents: 2662
diff changeset
   406
    writeChan (dbQueries serverInfo) $ SendStats (size clients) (size rooms - 1)
3425
ead2ed20dfd4 Start the server refactoring
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parents: 3283
diff changeset
   407
    return (clID, serverInfo, rnc)
ead2ed20dfd4 Start the server refactoring
unc0rr
parents: 3283
diff changeset
   408
3435
4e4f88a7bdf2 Some more steps in refactoring
unc0rr
parents: 3425
diff changeset
   409
-}