author | nemo |
Sun, 21 Nov 2010 08:42:41 -0500 | |
changeset 4394 | c1f2ca416ea8 |
parent 4337 | 85e02b1a8e8f |
child 4568 | f85243bf890e |
child 4571 | 597440c80b8a |
permissions | -rw-r--r-- |
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{-# LANGUAGE OverloadedStrings #-} |
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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.Set as Set |
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import qualified Data.Sequence as Seq |
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import System.Log.Logger |
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import Control.Monad |
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import Data.Time |
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import Data.Maybe |
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import Control.Monad.Reader |
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import Control.Monad.State.Strict |
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import qualified Data.ByteString.Char8 as B |
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----------------------------- |
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import CoreTypes |
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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] ![B.ByteString] |
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| SendServerMessage |
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| SendServerVars |
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| MoveToRoom RoomIndex |
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| MoveToLobby B.ByteString |
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| RemoveTeam B.ByteString |
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| RemoveRoom |
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| UnreadyRoomClients |
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| JoinLobby |
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| ProtocolError B.ByteString |
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| Warning B.ByteString |
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| ByeClient B.ByteString |
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| KickClient ClientIndex |
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| KickRoomClient ClientIndex |
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| BanClient B.ByteString -- nick |
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| RemoveClientTeams ClientIndex |
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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 B.ByteString B.ByteString |
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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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| DeleteClient ClientIndex |
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| PingAll |
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| StatsAction |
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type CmdHandler = [B.ByteString] -> Reader (ClientIndex, IRnC) [Action] |
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processAction :: Action -> StateT ServerState IO () |
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processAction (AnswerClients chans msg) = do |
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liftIO $ map (flip seq ()) chans `seq` map (flip seq ()) msg `seq` mapM_ (flip writeChan msg) chans |
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processAction SendServerMessage = do |
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chan <- client's sendChan |
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protonum <- client's clientProto |
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si <- liftM serverInfo get |
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let message = if protonum < 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 $ AnswerClients [chan] ["SERVER_MESSAGE", message] |
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{- |
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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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-} |
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processAction (ProtocolError msg) = do |
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chan <- client's sendChan |
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processAction $ AnswerClients [chan] ["ERROR", msg] |
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processAction (Warning msg) = do |
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chan <- client's sendChan |
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processAction $ AnswerClients [chan] ["WARNING", msg] |
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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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chan <- client's sendChan |
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ready <- client's isReady |
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when (ri /= lobbyId) $ do |
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processAction $ MoveToLobby ("quit: " `B.append` msg) |
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liftIO $ 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 ready then readyPlayers r - 1 else readyPlayers r |
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}) ri |
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return () |
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113 |
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liftIO $ do |
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infoM "Clients" (show ci ++ " quits: " ++ (B.unpack msg)) |
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116 |
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--mapM_ (processAction (ci, serverInfo, rnc)) $ answerOthersQuit ++ answerInformRoom |
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118 |
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processAction $ AnswerClients [chan] ["BYE", msg] |
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120 |
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s <- get |
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put $! s{removedClients = ci `Set.insert` removedClients s} |
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123 |
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processAction (DeleteClient ci) = do |
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rnc <- gets roomsClients |
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liftIO $ removeClient rnc ci |
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127 |
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s <- get |
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put $! s{removedClients = ci `Set.delete` removedClients s} |
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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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149 |
else |
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150 |
[] |
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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 (ModifyClient2 ci f) = do |
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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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171 |
{- |
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172 |
|
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processAction (clID, serverInfo, rnc) (ModifyServerInfo func) = |
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return (clID, func serverInfo, rnc) |
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175 |
|
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-} |
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processAction (MoveToRoom ri) = do |
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(Just ci) <- gets clientIndex |
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rnc <- gets roomsClients |
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liftIO $ do |
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modifyClient rnc (\cl -> cl{teamsInGame = 0}) ci |
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modifyRoom rnc (\r -> r{playersIn = (playersIn r) + 1}) ri |
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184 |
|
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liftIO $ moveClientToRoom rnc ri ci |
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186 |
|
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chans <- liftM (map sendChan) $ roomClientsS ri |
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clNick <- client's nick |
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processAction $ AnswerClients chans ["JOINED", clNick] |
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processAction (MoveToLobby msg) = do |
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(Just ci) <- gets clientIndex |
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--ri <- clientRoomA |
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rnc <- gets roomsClients |
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|
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liftIO $ moveClientToLobby rnc ci |
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198 |
|
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199 |
{- |
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(_, _, newClients, newRooms) <- |
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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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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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215 |
|
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|
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return ( |
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clID, |
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serverInfo, |
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adjust resetClientFlags clID newClients, |
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adjust removeClientFromRoom rID $ adjust insertClientToRoom 0 newRooms |
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222 |
) |
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where |
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rID = roomID client |
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client = clients ! clID |
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room = rooms ! rID |
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resetClientFlags cl = cl{roomID = 0, isMaster = False, isReady = False, teamsInGame = undefined} |
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removeClientFromRoom r = r{ |
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playersIDs = otherPlayersSet, |
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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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} |
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insertClientToRoom r = r{playersIDs = IntSet.insert clID (playersIDs r)} |
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changeMaster = do |
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processAction (newMasterId, serverInfo, rnc) $ AnswerThisClient ["ROOM_CONTROL_ACCESS", "1"] |
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return ( |
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clID, |
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serverInfo, |
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adjust (\cl -> cl{isMaster = True}) newMasterId clients, |
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adjust (\r -> r{masterID = newMasterId, name = newRoomName}) rID rooms |
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) |
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newRoomName = nick newMasterClient |
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otherPlayersSet = IntSet.delete clID (playersIDs room) |
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newMasterId = IntSet.findMin otherPlayersSet |
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newMasterClient = clients ! newMasterId |
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246 |
-} |
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processAction (AddRoom roomName roomPassword) = do |
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Just clId <- gets clientIndex |
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rnc <- gets roomsClients |
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proto <- liftIO $ client'sM rnc clientProto clId |
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let room = newRoom{ |
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masterID = clId, |
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name = roomName, |
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password = roomPassword, |
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roomProto = proto |
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} |
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rId <- liftIO $ addRoom rnc room |
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261 |
|
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processAction $ MoveToRoom rId |
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|
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chans <- liftM (map sendChan) $! roomClientsS lobbyId |
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mapM_ processAction [ |
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267 |
AnswerClients chans ["ROOM", "ADD", roomName] |
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, ModifyClient (\cl -> cl{isMaster = True}) |
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] |
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271 |
{- |
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processAction (clID, serverInfo, rnc) (RemoveRoom) = do |
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273 |
processAction (clID, serverInfo, rnc) $ AnswerLobby ["ROOM", "DEL", name room] |
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processAction (clID, serverInfo, rnc) $ AnswerOthersInRoom ["ROOMABANDONED", name room] |
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return (clID, |
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276 |
serverInfo, |
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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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delete rID $ adjust (\r -> r{playersIDs = IntSet.union (playersIDs room) (playersIDs r)}) 0 rooms |
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279 |
) |
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where |
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room = rooms ! rID |
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rID = roomID client |
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client = clients ! clID |
1804 | 284 |
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285 |
-} |
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processAction (UnreadyRoomClients) = do |
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rnc <- gets roomsClients |
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ri <- clientRoomA |
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roomPlayers <- roomClientsS ri |
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roomClIDs <- liftIO $ roomClientsIndicesM rnc ri |
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processAction $ AnswerClients (map sendChan roomPlayers) ("NOT_READY" : map nick roomPlayers) |
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liftIO $ mapM_ (modifyClient rnc (\cl -> cl{isReady = False})) roomClIDs |
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processAction $ ModifyRoom (\r -> r{readyPlayers = 0}) |
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processAction (RemoveTeam teamName) = do |
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rnc <- gets roomsClients |
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cl <- client's id |
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ri <- clientRoomA |
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inGame <- liftIO $ room'sM rnc gameinprogress ri |
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chans <- liftM (map sendChan . filter (/= cl)) $ roomClientsS ri |
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302 |
if inGame then |
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mapM_ processAction [ |
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304 |
AnswerClients chans ["REMOVE_TEAM", teamName], |
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ModifyRoom (\r -> r{teams = Prelude.filter (\t -> teamName /= teamname t) $ teams r}) |
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] |
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307 |
else |
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mapM_ processAction [ |
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309 |
AnswerClients chans ["EM", rmTeamMsg], |
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310 |
ModifyRoom (\r -> r{ |
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teams = Prelude.filter (\t -> teamName /= teamname t) $ teams r, |
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leftTeams = teamName : leftTeams r, |
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roundMsgs = roundMsgs r Seq.|> rmTeamMsg |
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314 |
}) |
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] |
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316 |
where |
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rmTeamMsg = toEngineMsg $ (B.singleton 'F') `B.append` teamName |
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319 |
processAction CheckRegistered = do |
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320 |
(Just ci) <- gets clientIndex |
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321 |
n <- client's nick |
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h <- client's host |
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323 |
db <- gets (dbQueries . serverInfo) |
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324 |
liftIO $ writeChan db $ CheckAccount ci n h |
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325 |
return () |
1834 | 326 |
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327 |
{- |
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processAction (clID, serverInfo, rnc) (ClearAccountsCache) = do |
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329 |
writeChan (dbQueries serverInfo) ClearCache |
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330 |
return (clID, serverInfo, rnc) |
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where |
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332 |
client = clients ! clID |
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|
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Implement ability for server admin to clear accounts cache
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334 |
|
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processAction (clID, serverInfo, rnc) (Dump) = do |
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336 |
writeChan (sendChan $ clients ! clID) ["DUMP", show serverInfo, showTree clients, showTree rooms] |
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return (clID, serverInfo, rnc) |
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338 |
-} |
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processAction (ProcessAccountInfo info) = |
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case info of |
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HasAccount passwd isAdmin -> do |
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343 |
chan <- client's sendChan |
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processAction $ AnswerClients [chan] ["ASKPASSWORD"] |
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Guest -> do |
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processAction JoinLobby |
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Admin -> do |
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348 |
mapM processAction [ModifyClient (\cl -> cl{isAdministrator = True}), JoinLobby] |
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349 |
chan <- client's sendChan |
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350 |
processAction $ AnswerClients [chan] ["ADMIN_ACCESS"] |
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|
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processAction JoinLobby = do |
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chan <- client's sendChan |
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clientNick <- client's nick |
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(lobbyNicks, clientsChans) <- liftM (unzip . Prelude.map (\c -> (nick c, sendChan c)) . Prelude.filter logonPassed) $! allClientsS |
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357 |
mapM_ processAction $ |
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358 |
(AnswerClients clientsChans ["LOBBY:JOINED", clientNick]) |
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359 |
: [AnswerClients [chan] ("LOBBY:JOINED" : clientNick : lobbyNicks)] |
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360 |
++ [ModifyClient (\cl -> cl{logonPassed = True}), SendServerMessage] |
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361 |
|
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362 |
{- |
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processAction (clID, serverInfo, rnc) (RoomAddThisClient rID) = |
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364 |
processAction ( |
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365 |
clID, |
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366 |
serverInfo, |
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367 |
adjust (\cl -> cl{roomID = rID, teamsInGame = if rID == 0 then teamsInGame cl else 0}) clID clients, |
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368 |
adjust (\r -> r{playersIDs = IntSet.insert clID (playersIDs r), playersIn = (playersIn r) + 1}) rID $ |
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369 |
adjust (\r -> r{playersIDs = IntSet.delete clID (playersIDs r)}) 0 rooms |
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370 |
) joinMsg |
3502 | 371 |
where |
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372 |
client = clients ! clID |
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373 |
joinMsg = if rID == 0 then |
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374 |
AnswerAllOthers ["LOBBY:JOINED", nick client] |
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375 |
else |
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376 |
AnswerThisRoom ["JOINED", nick client] |
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377 |
|
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378 |
processAction (clID, serverInfo, rnc) (KickClient kickID) = |
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379 |
liftM2 replaceID (return clID) (processAction (kickID, serverInfo, rnc) $ ByeClient "Kicked") |
1879 | 380 |
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Add simple DoS protection mechanism (although better than previous server had)
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381 |
|
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382 |
processAction (clID, serverInfo, rnc) (BanClient banNick) = |
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383 |
return (clID, serverInfo, rnc) |
1921 | 384 |
|
1879 | 385 |
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386 |
processAction (clID, serverInfo, rnc) (KickRoomClient kickID) = do |
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387 |
writeChan (sendChan $ clients ! kickID) ["KICKED"] |
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388 |
liftM2 replaceID (return clID) (processAction (kickID, serverInfo, rnc) $ RoomRemoveThisClient "kicked") |
1879 | 389 |
|
390 |
||
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391 |
processAction (clID, serverInfo, rnc) (RemoveClientTeams teamsClID) = |
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392 |
liftM2 replaceID (return clID) $ |
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393 |
foldM processAction (teamsClID, serverInfo, rnc) removeTeamsActions |
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394 |
where |
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client = clients ! teamsClID |
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396 |
room = rooms ! (roomID client) |
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397 |
teamsToRemove = Prelude.filter (\t -> teamowner t == nick client) $ teams room |
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398 |
removeTeamsActions = Prelude.map (RemoveTeam . teamname) teamsToRemove |
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399 |
-} |
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400 |
|
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401 |
processAction (AddClient client) = do |
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402 |
rnc <- gets roomsClients |
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403 |
si <- gets serverInfo |
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404 |
liftIO $ do |
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405 |
ci <- addClient rnc client |
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406 |
forkIO $ clientRecvLoop (clientSocket client) (coreChan si) ci |
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407 |
forkIO $ clientSendLoop (clientSocket client) (sendChan client) ci |
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408 |
|
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409 |
infoM "Clients" (show ci ++ ": New client. Time: " ++ show (connectTime client)) |
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410 |
|
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411 |
processAction $ AnswerClients [sendChan client] ["CONNECTED", "Hedgewars server http://www.hedgewars.org/"] |
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412 |
{- let newLogins = takeWhile (\(_ , time) -> (connectTime client) `diffUTCTime` time <= 11) $ lastLogins serverInfo |
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413 |
|
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414 |
if False && (isJust $ host client `Prelude.lookup` newLogins) then |
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415 |
processAction (ci, serverInfo{lastLogins = newLogins}, rnc) $ ByeClient "Reconnected too fast" |
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416 |
else |
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417 |
return (ci, serverInfo) |
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418 |
-} |
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419 |
|
3451
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420 |
|
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421 |
|
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422 |
processAction PingAll = do |
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423 |
rnc <- gets roomsClients |
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424 |
liftIO (allClientsM rnc) >>= mapM_ (kickTimeouted rnc) |
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425 |
cis <- liftIO $ allClientsM rnc |
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426 |
chans <- liftIO $ mapM (client'sM rnc sendChan) cis |
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427 |
liftIO $ mapM_ (modifyClient rnc (\cl -> cl{pingsQueue = pingsQueue cl + 1})) cis |
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428 |
processAction $ AnswerClients chans ["PING"] |
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- Unbreak support for client versions prior to 0.9.13-dev
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429 |
where |
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430 |
kickTimeouted rnc ci = do |
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431 |
pq <- liftIO $ client'sM rnc pingsQueue ci |
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432 |
when (pq > 0) $ |
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433 |
withStateT (\as -> as{clientIndex = Just ci}) $ |
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434 |
processAction (ByeClient "Ping timeout") |
2172 | 435 |
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||
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437 |
processAction (StatsAction) = do |
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438 |
rnc <- gets roomsClients |
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439 |
si <- gets serverInfo |
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440 |
(roomsNum, clientsNum) <- liftIO $ withRoomsAndClients rnc stats |
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441 |
liftIO $ writeChan (dbQueries si) $ SendStats clientsNum (roomsNum - 1) |
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442 |
where |
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443 |
stats irnc = (length $ allRooms irnc, length $ allClients irnc) |
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444 |