{-
* Hedgewars, a free turn based strategy game
* Copyright (c) 2004-2015 Andrey Korotaev <unC0Rr@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
\-}
{-# LANGUAGE OverloadedStrings #-}
module HWProtoCore where
import Control.Monad
import Control.Monad.Reader
import Data.Maybe
import qualified Data.ByteString.Char8 as B
--------------------------------------
import CoreTypes
import HWProtoNEState
import HWProtoLobbyState
import HWProtoInRoomState
import HWProtoChecker
import HandlerUtils
import RoomsAndClients
import Utils
import Consts
handleCmd, handleCmd_loggedin, handleCmd_lobbyOnly, handleCmd_roomOnly :: CmdHandler
handleCmd ["PING"] = answerClient ["PONG"]
handleCmd ("QUIT" : xs) = return [ByeClient msg]
where
-- "bye" is a special string (do not translate!) when the user quits manually,
-- otherwise there will be an additional server message
msg = if not $ null xs then (head xs) else "bye"
handleCmd ["PONG"] = do
cl <- thisClient
if pingsQueue cl == 0 then
return [ProtocolError "Protocol violation"]
else
return [ModifyClient (\c -> c{pingsQueue = pingsQueue c - 1})]
handleCmd cmd = do
(ci, irnc) <- ask
let cl = irnc `client` ci
if logonPassed cl then
if isChecker cl then
handleCmd_checker cmd
else
handleCmd_loggedin cmd
else
handleCmd_NotEntered cmd
handleCmd_lobbyOnly cmd = do
(ci, rnc) <- ask
if (clientRoom rnc ci) == lobbyId then
handleCmd cmd
else
return [Warning $ loc "This command is only available in the lobby."]
handleCmd_roomOnly cmd = do
(ci, rnc) <- ask
if (clientRoom rnc ci) == lobbyId then
return [Warning $ loc "This command is only available in rooms."]
else
handleCmd cmd
-- Chat command handling
unknownCmdWarningText :: B.ByteString
unknownCmdWarningText = loc "Unknown command or invalid parameters. Say '/help' in chat for a list of commands."
handleCmd_loggedin ["CMD"] = return [Warning unknownCmdWarningText]
handleCmd_loggedin ["CMD", parameters] = uncurry h $ extractParameters parameters
where
-- room-only commands
h "DELEGATE" n | not $ B.null n = handleCmd_roomOnly ["DELEGATE", n]
h "SAVEROOM" n | not $ B.null n = handleCmd_roomOnly ["SAVEROOM", n]
h "LOADROOM" n | not $ B.null n = handleCmd_roomOnly ["LOADROOM", n]
h "SAVE" n | not $ B.null n = let (sn, ln) = B.break (== ' ') n in if B.null ln then return [Warning unknownCmdWarningText] else handleCmd_roomOnly ["SAVE", sn, B.tail ln]
h "DELETE" n | not $ B.null n = handleCmd_roomOnly ["DELETE", n]
h "FIX" _ = handleCmd_roomOnly ["FIX"]
h "UNFIX" _ = handleCmd_roomOnly ["UNFIX"]
h "GREETING" msg = handleCmd_roomOnly ["GREETING", msg]
h "CALLVOTE" msg | B.null msg = handleCmd_roomOnly ["CALLVOTE"]
| otherwise = let (c, p) = extractParameters msg in
if B.null p then handleCmd_roomOnly ["CALLVOTE", c] else handleCmd_roomOnly ["CALLVOTE", c, p]
h "VOTE" msg | not $ B.null msg = handleCmd_roomOnly ["VOTE", upperCase msg]
| otherwise = handleCmd_roomOnly ["VOTE", ""]
h "FORCE" msg | not $ B.null msg = handleCmd_roomOnly ["VOTE", upperCase msg, "FORCE"]
| otherwise = handleCmd_roomOnly ["VOTE", "", "FORCE"]
h "MAXTEAMS" n | not $ B.null n = handleCmd_roomOnly ["MAXTEAMS", n]
| otherwise = handleCmd_roomOnly ["MAXTEAMS"]
-- lobby-only commands
h "STATS" _ = handleCmd_lobbyOnly ["STATS"]
h "RESTART_SERVER" p = handleCmd_lobbyOnly ["RESTART_SERVER", upperCase p]
-- room and lobby commands
h "QUIT" _ = handleCmd ["QUIT"]
h "RND" p = handleCmd ("RND" : B.words p)
h "GLOBAL" p = serverAdminOnly $ do
rnc <- liftM snd ask
let chans = map (sendChan . client rnc) $ allClients rnc
return [AnswerClients chans ["CHAT", nickGlobal, p]]
h "WATCH" f = return [QueryReplay f]
h "INFO" n | not $ B.null n = handleCmd ["INFO", n]
h "HELP" _ = handleCmd ["HELP"]
h "REGISTERED_ONLY" _ = serverAdminOnly $ do
rnc <- liftM snd ask
let chans = map (sendChan . client rnc) $ allClients rnc
return
[ModifyServerInfo(\s -> s{isRegisteredUsersOnly = not $ isRegisteredUsersOnly s})
, ShowRegisteredOnlyState chans
]
h "SUPER_POWER" _ = serverAdminOnly $ do
cl <- thisClient
return
[ModifyClient (\c -> c{hasSuperPower = True})
, AnswerClients [sendChan cl] ["CHAT", nickServer, loc "Super power activated."]
]
h _ _ = return [Warning unknownCmdWarningText]
extractParameters p = let (a, b) = B.break (== ' ') p in (upperCase a, B.dropWhile (== ' ') b)
handleCmd_loggedin ["INFO", asknick] = do
(_, rnc) <- ask
maybeClientId <- clientByNick asknick
isAdminAsking <- liftM isAdministrator thisClient
let noSuchClient = isNothing maybeClientId
let clientId = fromJust maybeClientId
let cl = rnc `client` fromJust maybeClientId
let roomId = clientRoom rnc clientId
let clRoom = room rnc roomId
let roomMasterSign = if isMaster cl then "+" else ""
let adminSign = if isAdministrator cl then "@" else ""
let rInfo = if roomId /= lobbyId then B.concat [adminSign, roomMasterSign, loc "room", " ", name clRoom] else adminSign `B.append` (loc "lobby")
let roomStatus = if isJust $ gameInfo clRoom then
if teamsInGame cl > 0 then (loc "(playing)") else (loc "(spectating)")
else
""
let hostStr = if isAdminAsking then host cl else B.empty
if noSuchClient then
answerClient [ "CHAT", nickServer, loc "Player is not online." ]
else
answerClient [
"INFO",
nick cl,
B.concat ["[", hostStr, "]"],
protoNumber2ver $ clientProto cl,
B.concat ["[", rInfo, "]", roomStatus]
]
handleCmd_loggedin cmd = do
(ci, rnc) <- ask
if clientRoom rnc ci == lobbyId then
handleCmd_lobby cmd
else
handleCmd_inRoom cmd