gameServer/Actions.hs
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module Actions where
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import Control.Concurrent
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import Control.Concurrent.STM
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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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-----------------------------
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import CoreTypes
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import Utils
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import ClientIO
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import RoomsAndClients
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data Action =
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    AnswerClients [Chan [String]] [String]
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    | SendServerMessage
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    | SendServerVars
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    | RoomAddThisClient Int -- 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 Int -- clID
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    | KickRoomClient Int -- clID
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    | BanClient String -- nick
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    | RemoveClientTeams Int -- clID
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    | ModifyClient (ClientInfo -> ClientInfo)
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    | ModifyClient2 Int (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 = Int -> MRnC -> [String] -> [Action]
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replaceID a (b, c, d, e) = (a, c, d, e)
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processAction :: (ClientIndex, ServerInfo, MRnC) -> Action -> IO (ClientIndex, ServerInfo)
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processAction (ci, serverInfo, rnc) (AnswerClients chans msg) = do
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    mapM_ (flip writeChan msg) chans
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    return (ci, serverInfo)
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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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processAction (clID, serverInfo, rnc) (ByeClient msg) = do
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    infoM "Clients" (show (clientUID client) ++ " quits: " ++ msg)
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    (_, _, newClients, newRooms) <-
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            if roomID client /= 0 then
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                processAction  (clID, serverInfo, rnc) $ RoomRemoveThisClient "quit"
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                else
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                    return (clID, serverInfo, rnc)
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    mapM_ (processAction (clID, serverInfo, newClients, newRooms)) $ answerOthersQuit ++ answerInformRoom
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    writeChan (sendChan $ clients ! clID) ["BYE", msg]
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    return (
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            0,
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            serverInfo,
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            delete clID newClients,
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            adjust (\r -> r{
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                    playersIDs = IntSet.delete clID (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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                    }) (roomID $ newClients ! clID) newRooms
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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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processAction (clID, serverInfo, rnc) (ModifyClient func) =
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    return (clID, serverInfo, adjust func clID rnc)
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processAction (clID, serverInfo, rnc) (ModifyClient2 cl2ID func) =
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    return (clID, serverInfo, adjust func cl2ID rnc)
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processAction (clID, serverInfo, rnc) (ModifyRoom func) =
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    return (clID, serverInfo, clients, adjust func rID rooms)
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    where
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        rID = roomID $ clients ! clID
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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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   161
    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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   165
            else
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                AnswerThisRoom ["JOINED", nick client]
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   167
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   168
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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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   173
                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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   178
                else -- not in game
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                    processAction (clID, serverInfo, rnc) RemoveRoom
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   180
            else -- not master
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   181
                foldM
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                    processAction
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   183
                        (clID, serverInfo, rnc)
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                        [AnswerOthersInRoom ["LEFT", nick client, msg],
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                        RemoveClientTeams clID]
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   186
        else -- in lobby
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            return (clID, serverInfo, rnc)
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   188
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   189
    return (
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   190
        clID,
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   191
        serverInfo,
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   192
        adjust resetClientFlags clID newClients,
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diff changeset
   193
        adjust removeClientFromRoom rID $ adjust insertClientToRoom 0 newRooms
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diff changeset
   194
        )
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diff changeset
   195
    where
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   196
        rID = roomID client
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   197
        client = clients ! clID
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   198
        room = rooms ! rID
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   199
        resetClientFlags cl = cl{roomID = 0, isMaster = False, isReady = False, teamsInGame = undefined}
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   200
        removeClientFromRoom r = r{
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   201
                playersIDs = otherPlayersSet,
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   202
                playersIn = (playersIn r) - 1,
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   203
                readyPlayers = if isReady client then (readyPlayers r) - 1 else readyPlayers r
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   204
                }
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   205
        insertClientToRoom r = r{playersIDs = IntSet.insert clID (playersIDs r)}
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   206
        changeMaster = do
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   207
            processAction (newMasterId, serverInfo, rnc) $ AnswerThisClient ["ROOM_CONTROL_ACCESS", "1"]
2867
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   208
            return (
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diff changeset
   209
                clID,
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diff changeset
   210
                serverInfo,
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diff changeset
   211
                adjust (\cl -> cl{isMaster = True}) newMasterId clients,
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diff changeset
   212
                adjust (\r -> r{masterID = newMasterId, name = newRoomName}) rID rooms
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diff changeset
   213
                )
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   214
        newRoomName = nick newMasterClient
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   215
        otherPlayersSet = IntSet.delete clID (playersIDs room)
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diff changeset
   216
        newMasterId = IntSet.findMin otherPlayersSet
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   217
        newMasterClient = clients ! newMasterId
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   218
4e78ad846fb6 New game server:
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diff changeset
   219
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   220
processAction (clID, serverInfo, rnc) (AddRoom roomName roomPassword) = do
2867
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   221
    let newServerInfo = serverInfo {nextRoomID = newID}
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diff changeset
   222
    let room = newRoom{
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   223
            roomUID = newID,
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diff changeset
   224
            masterID = clID,
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   225
            name = roomName,
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   226
            password = roomPassword,
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diff changeset
   227
            roomProto = (clientProto client)
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   228
            }
1804
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diff changeset
   229
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   230
    processAction (clID, serverInfo, rnc) $ AnswerLobby ["ROOM", "ADD", roomName]
1804
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diff changeset
   231
2867
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diff changeset
   232
    processAction (
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diff changeset
   233
        clID,
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diff changeset
   234
        newServerInfo,
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diff changeset
   235
        adjust (\cl -> cl{isMaster = True}) clID clients,
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diff changeset
   236
        insert newID room rooms
9be6693c78cb - Unbreak support for client versions prior to 0.9.13-dev
unc0rr
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diff changeset
   237
        ) $ RoomAddThisClient newID
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unc0rr
parents: 2662
diff changeset
   238
    where
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diff changeset
   239
        newID = (nextRoomID serverInfo) - 1
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   240
        client = clients ! clID
1804
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   241
4e78ad846fb6 New game server:
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diff changeset
   242
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   243
processAction (clID, serverInfo, rnc) (RemoveRoom) = do
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   244
    processAction (clID, serverInfo, rnc) $ AnswerLobby ["ROOM", "DEL", name room]
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   245
    processAction (clID, serverInfo, rnc) $ AnswerOthersInRoom ["ROOMABANDONED", name room]
2867
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   246
    return (clID,
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diff changeset
   247
        serverInfo,
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   248
        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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   249
        delete rID $ adjust (\r -> r{playersIDs = IntSet.union (playersIDs room) (playersIDs r)}) 0 rooms
9be6693c78cb - Unbreak support for client versions prior to 0.9.13-dev
unc0rr
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diff changeset
   250
        )
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unc0rr
parents: 2662
diff changeset
   251
    where
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diff changeset
   252
        room = rooms ! rID
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diff changeset
   253
        rID = roomID client
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   254
        client = clients ! clID
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diff changeset
   255
1813
cfe1481e0247 Removeteam action
unc0rr
parents: 1811
diff changeset
   256
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   257
processAction (clID, serverInfo, rnc) (UnreadyRoomClients) = do
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   258
    processAction (clID, serverInfo, rnc) $ AnswerThisRoom ("NOT_READY" : roomPlayers)
2867
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diff changeset
   259
    return (clID,
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   260
        serverInfo,
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   261
        Data.IntMap.map (\cl -> if roomID cl == rID then cl{isReady = False} else cl) clients,
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unc0rr
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diff changeset
   262
        adjust (\r -> r{readyPlayers = 0}) rID rooms)
9be6693c78cb - Unbreak support for client versions prior to 0.9.13-dev
unc0rr
parents: 2662
diff changeset
   263
    where
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diff changeset
   264
        room = rooms ! rID
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diff changeset
   265
        rID = roomID client
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diff changeset
   266
        client = clients ! clID
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diff changeset
   267
        roomPlayers = Prelude.map (nick . (clients !)) roomPlayersIDs
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diff changeset
   268
        roomPlayersIDs = IntSet.elems $ playersIDs room
1811
1b9e33623b7e Implement 'roundfinished' cmd on net server
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diff changeset
   269
1b9e33623b7e Implement 'roundfinished' cmd on net server
unc0rr
parents: 1804
diff changeset
   270
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   271
processAction (clID, serverInfo, rnc) (RemoveTeam teamName) = do
2948
3f21a9dc93d0 Replace tabs with spaces using 'expand -t 4' command
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diff changeset
   272
    newRooms <- if not $ gameinprogress room then
2867
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   273
            do
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   274
            processAction (clID, serverInfo, rnc) $ AnswerOthersInRoom ["REMOVE_TEAM", teamName]
2867
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   275
            return $
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diff changeset
   276
                adjust (\r -> r{teams = Prelude.filter (\t -> teamName /= teamname t) $ teams r}) rID rooms
9be6693c78cb - Unbreak support for client versions prior to 0.9.13-dev
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diff changeset
   277
        else
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diff changeset
   278
            do
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   279
            processAction (clID, serverInfo, rnc) $ AnswerOthersInRoom ["EM", rmTeamMsg]
2867
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diff changeset
   280
            return $
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diff changeset
   281
                adjust (\r -> r{
9be6693c78cb - Unbreak support for client versions prior to 0.9.13-dev
unc0rr
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diff changeset
   282
                teams = Prelude.filter (\t -> teamName /= teamname t) $ teams r,
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unc0rr
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diff changeset
   283
                leftTeams = teamName : leftTeams r,
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unc0rr
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diff changeset
   284
                roundMsgs = roundMsgs r Seq.|> rmTeamMsg
9be6693c78cb - Unbreak support for client versions prior to 0.9.13-dev
unc0rr
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diff changeset
   285
                }) rID rooms
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diff changeset
   286
    return (clID, serverInfo, clients, newRooms)
9be6693c78cb - Unbreak support for client versions prior to 0.9.13-dev
unc0rr
parents: 2662
diff changeset
   287
    where
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unc0rr
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diff changeset
   288
        room = rooms ! rID
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unc0rr
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diff changeset
   289
        rID = roomID client
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diff changeset
   290
        client = clients ! clID
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unc0rr
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diff changeset
   291
        rmTeamMsg = toEngineMsg $ 'F' : teamName
1813
cfe1481e0247 Removeteam action
unc0rr
parents: 1811
diff changeset
   292
cfe1481e0247 Removeteam action
unc0rr
parents: 1811
diff changeset
   293
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diff changeset
   294
processAction (clID, serverInfo, rnc) (CheckRegistered) = do
2867
9be6693c78cb - Unbreak support for client versions prior to 0.9.13-dev
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diff changeset
   295
    writeChan (dbQueries serverInfo) $ CheckAccount (clientUID client) (nick client) (host client)
3425
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diff changeset
   296
    return (clID, serverInfo, rnc)
2867
9be6693c78cb - Unbreak support for client versions prior to 0.9.13-dev
unc0rr
parents: 2662
diff changeset
   297
    where
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diff changeset
   298
        client = clients ! clID
1834
71cb978dc85f Add working check for www account existance
unc0rr
parents: 1827
diff changeset
   299
1841
fba7210b438b Retrieve client password from web database and ask for it
unc0rr
parents: 1839
diff changeset
   300
3425
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diff changeset
   301
processAction (clID, serverInfo, rnc) (ClearAccountsCache) = do
2867
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unc0rr
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diff changeset
   302
    writeChan (dbQueries serverInfo) ClearCache
3425
ead2ed20dfd4 Start the server refactoring
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diff changeset
   303
    return (clID, serverInfo, rnc)
2867
9be6693c78cb - Unbreak support for client versions prior to 0.9.13-dev
unc0rr
parents: 2662
diff changeset
   304
    where
9be6693c78cb - Unbreak support for client versions prior to 0.9.13-dev
unc0rr
parents: 2662
diff changeset
   305
        client = clients ! clID
2155
d897222d3339 Implement ability for server admin to clear accounts cache
unc0rr
parents: 2126
diff changeset
   306
d897222d3339 Implement ability for server admin to clear accounts cache
unc0rr
parents: 2126
diff changeset
   307
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   308
processAction (clID, serverInfo, rnc) (Dump) = do
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diff changeset
   309
    writeChan (sendChan $ clients ! clID) ["DUMP", show serverInfo, showTree clients, showTree rooms]
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   310
    return (clID, serverInfo, rnc)
1804
4e78ad846fb6 New game server:
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parents:
diff changeset
   311
1841
fba7210b438b Retrieve client password from web database and ask for it
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parents: 1839
diff changeset
   312
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   313
processAction (clID, serverInfo, rnc) (ProcessAccountInfo info) =
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parents: 2662
diff changeset
   314
    case info of
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diff changeset
   315
        HasAccount passwd isAdmin -> do
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   316
            infoM "Clients" $ show clID ++ " has account"
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diff changeset
   317
            writeChan (sendChan $ clients ! clID) ["ASKPASSWORD"]
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diff changeset
   318
            return (clID, serverInfo, adjust (\cl -> cl{webPassword = passwd, isAdministrator = isAdmin}) clID rnc)
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parents: 2662
diff changeset
   319
        Guest -> do
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diff changeset
   320
            infoM "Clients" $ show clID ++ " is guest"
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diff changeset
   321
            processAction (clID, serverInfo, adjust (\cl -> cl{logonPassed = True}) clID rnc) MoveToLobby
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   322
        Admin -> do
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diff changeset
   323
            infoM "Clients" $ show clID ++ " is admin"
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diff changeset
   324
            foldM processAction (clID, serverInfo, adjust (\cl -> cl{logonPassed = True, isAdministrator = True}) clID rnc) [MoveToLobby, AnswerThisClient ["ADMIN_ACCESS"]]
1841
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parents: 1839
diff changeset
   325
fba7210b438b Retrieve client password from web database and ask for it
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parents: 1839
diff changeset
   326
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diff changeset
   327
processAction (clID, serverInfo, rnc) (MoveToLobby) =
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   328
    foldM processAction (clID, serverInfo, rnc) $
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diff changeset
   329
        (RoomAddThisClient 0)
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   330
        : answerLobbyNicks
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diff changeset
   331
        ++ [SendServerMessage]
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0ebcc98ebc1a Send server message after nicks info (more chance for it to be seen)
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diff changeset
   332
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diff changeset
   333
        -- ++ (answerServerMessage client clients)
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diff changeset
   334
    where
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   335
        lobbyNicks = Prelude.map nick $ Prelude.filter logonPassed $ elems clients
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parents: 2662
diff changeset
   336
        answerLobbyNicks = [AnswerThisClient ("LOBBY:JOINED": lobbyNicks) | not $ Prelude.null lobbyNicks]
1841
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parents: 1839
diff changeset
   337
fba7210b438b Retrieve client password from web database and ask for it
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diff changeset
   338
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diff changeset
   339
processAction (clID, serverInfo, rnc) (KickClient kickID) =
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   340
    liftM2 replaceID (return clID) (processAction (kickID, serverInfo, rnc) $ ByeClient "Kicked")
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diff changeset
   341
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diff changeset
   342
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diff changeset
   343
processAction (clID, serverInfo, rnc) (BanClient banNick) =
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   344
    return (clID, serverInfo, rnc)
1921
2a09f7f786a0 - User from localhost is server admin
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parents: 1879
diff changeset
   345
1879
bb114339eb4e Implement kick from room
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parents: 1866
diff changeset
   346
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diff changeset
   347
processAction (clID, serverInfo, rnc) (KickRoomClient kickID) = do
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parents: 2662
diff changeset
   348
    writeChan (sendChan $ clients ! kickID) ["KICKED"]
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diff changeset
   349
    liftM2 replaceID (return clID) (processAction (kickID, serverInfo, rnc) $ RoomRemoveThisClient "kicked")
1879
bb114339eb4e Implement kick from room
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parents: 1866
diff changeset
   350
bb114339eb4e Implement kick from room
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parents: 1866
diff changeset
   351
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parents: 3283
diff changeset
   352
processAction (clID, serverInfo, rnc) (RemoveClientTeams teamsClID) =
2867
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parents: 2662
diff changeset
   353
    liftM2 replaceID (return clID) $
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diff changeset
   354
        foldM processAction (teamsClID, serverInfo, rnc) removeTeamsActions
2867
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parents: 2662
diff changeset
   355
    where
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parents: 2662
diff changeset
   356
        client = clients ! teamsClID
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parents: 2662
diff changeset
   357
        room = rooms ! (roomID client)
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parents: 2662
diff changeset
   358
        teamsToRemove = Prelude.filter (\t -> teamowner t == nick client) $ teams room
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parents: 2662
diff changeset
   359
        removeTeamsActions = Prelude.map (RemoveTeam . teamname) teamsToRemove
1926
cb46fbdcaa41 Add simple DoS protection mechanism (although better than previous server had)
unc0rr
parents: 1925
diff changeset
   360
cb46fbdcaa41 Add simple DoS protection mechanism (although better than previous server had)
unc0rr
parents: 1925
diff changeset
   361
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parents: 3283
diff changeset
   362
processAction (clID, serverInfo, rnc) (AddClient client) = do
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parents: 3283
diff changeset
   363
    forkIO $ clientRecvLoop (clientHandle client) (coreChan serverInfo) (clientUID client)
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parents: 3283
diff changeset
   364
    forkIO $ clientSendLoop (clientHandle client) (coreChan serverInfo) (sendChan client) (clientUID client)
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parents: 3283
diff changeset
   365
2867
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parents: 2662
diff changeset
   366
    let updatedClients = insert (clientUID client) client clients
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diff changeset
   367
    infoM "Clients" (show (clientUID client) ++ ": New client. Time: " ++ show (connectTime client))
9be6693c78cb - Unbreak support for client versions prior to 0.9.13-dev
unc0rr
parents: 2662
diff changeset
   368
    writeChan (sendChan client) ["CONNECTED", "Hedgewars server http://www.hedgewars.org/"]
1926
cb46fbdcaa41 Add simple DoS protection mechanism (although better than previous server had)
unc0rr
parents: 1925
diff changeset
   369
2867
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parents: 2662
diff changeset
   370
    let newLogins = takeWhile (\(_ , time) -> (connectTime client) `diffUTCTime` time <= 11) $ lastLogins serverInfo
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parents: 1925
diff changeset
   371
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parents: 3283
diff changeset
   372
    if False && (isJust $ host client `Prelude.lookup` newLogins) then
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parents: 2662
diff changeset
   373
        processAction (clID, serverInfo{lastLogins = newLogins}, updatedClients, rooms) $ ByeClient "Reconnected too fast"
9be6693c78cb - Unbreak support for client versions prior to 0.9.13-dev
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parents: 2662
diff changeset
   374
        else
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diff changeset
   375
        return (clID, serverInfo{lastLogins = (host client, connectTime client) : newLogins}, updatedClients, rooms)
1927
e2031906a347 Ping clients every 30 seconds. Disconnection due to ping timeout to be implemented.
unc0rr
parents: 1926
diff changeset
   376
e2031906a347 Ping clients every 30 seconds. Disconnection due to ping timeout to be implemented.
unc0rr
parents: 1926
diff changeset
   377
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parents: 3283
diff changeset
   378
processAction (clID, serverInfo, rnc) PingAll = do
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parents: 3283
diff changeset
   379
    (_, _, newClients, newRooms) <- foldM kickTimeouted (clID, serverInfo, rnc) $ elems clients
2867
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unc0rr
parents: 2662
diff changeset
   380
    processAction (clID,
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unc0rr
parents: 2662
diff changeset
   381
        serverInfo,
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parents: 2662
diff changeset
   382
        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
   383
        newRooms) $ AnswerAll ["PING"]
9be6693c78cb - Unbreak support for client versions prior to 0.9.13-dev
unc0rr
parents: 2662
diff changeset
   384
    where
3425
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parents: 3283
diff changeset
   385
        kickTimeouted (clID, serverInfo, rnc) client =
2867
9be6693c78cb - Unbreak support for client versions prior to 0.9.13-dev
unc0rr
parents: 2662
diff changeset
   386
            if pingsQueue client > 0 then
3425
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parents: 3283
diff changeset
   387
                processAction (clientUID client, serverInfo, rnc) $ ByeClient "Ping timeout"
2867
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unc0rr
parents: 2662
diff changeset
   388
                else
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parents: 3283
diff changeset
   389
                return (clID, serverInfo, rnc)
2172
80d34c0b9dfe Implement sending gameserver stats to webserver
unc0rr
parents: 2155
diff changeset
   390
80d34c0b9dfe Implement sending gameserver stats to webserver
unc0rr
parents: 2155
diff changeset
   391
3425
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unc0rr
parents: 3283
diff changeset
   392
processAction (clID, serverInfo, rnc) (StatsAction) = do
2867
9be6693c78cb - Unbreak support for client versions prior to 0.9.13-dev
unc0rr
parents: 2662
diff changeset
   393
    writeChan (dbQueries serverInfo) $ SendStats (size clients) (size rooms - 1)
3425
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unc0rr
parents: 3283
diff changeset
   394
    return (clID, serverInfo, rnc)
ead2ed20dfd4 Start the server refactoring
unc0rr
parents: 3283
diff changeset
   395
ead2ed20dfd4 Start the server refactoring
unc0rr
parents: 3283
diff changeset
   396
-}