{- * 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, CPP #-}module HWProtoNEState whereimport Control.Monad.Readerimport qualified Data.ByteString.Lazy as BLimport qualified Data.ByteString.Char8 as Bimport Data.Digest.Pure.SHA--------------------------------------import CoreTypesimport Utilsimport RoomsAndClientsimport HandlerUtilshandleCmd_NotEntered :: CmdHandlerhandleCmd_NotEntered ["NICK", newNick] = do (ci, irnc) <- ask let cl = irnc `client` ci if not . B.null $ nick cl then return [ProtocolError $ loc "Nickname already chosen"] else if illegalName newNick then return [ByeClient $ loc "Illegal nickname"] else return $ ModifyClient (\c -> c{nick = newNick}) : AnswerClients [sendChan cl] ["NICK", newNick] : [CheckRegistered | clientProto cl /= 0]handleCmd_NotEntered ["PROTO", protoNum] = do (ci, irnc) <- ask let cl = irnc `client` ci if clientProto cl > 0 then return [ProtocolError $ loc "Protocol already known"] else if parsedProto == 0 then return [ProtocolError $ loc "Bad number"] else return $ ModifyClient (\c -> c{clientProto = parsedProto}) : AnswerClients [sendChan cl] ["PROTO", showB parsedProto] : [CheckRegistered | not . B.null $ nick cl] where parsedProto = readInt_ protoNumhandleCmd_NotEntered ["PASSWORD", passwd] = do (ci, irnc) <- ask let cl = irnc `client` ci if clientProto cl < 48 && passwd == webPassword cl then return $ JoinLobby : [AnswerClients [sendChan cl] ["ADMIN_ACCESS"] | isAdministrator cl] else return [ByeClient "Authentication failed"]handleCmd_NotEntered ["PASSWORD", passwd, clientSalt] = do (ci, irnc) <- ask let cl = irnc `client` ci let clientHash = h [clientSalt, serverSalt cl, webPassword cl, showB $ clientProto cl, "!hedgewars"] let serverHash = h [serverSalt cl, clientSalt, webPassword cl, showB $ clientProto cl, "!hedgewars"] if passwd == clientHash then return [ AnswerClients [sendChan cl] ["SERVER_AUTH", serverHash] , JoinLobby ] else return [ByeClient "Authentication failed"] where h = B.pack . showDigest . sha1 . BL.fromChunks#if defined(OFFICIAL_SERVER)handleCmd_NotEntered ["CHECKER", protoNum, newNick, password] = do (ci, irnc) <- ask let cl = irnc `client` ci if parsedProto == 0 then return [ProtocolError $ loc "Bad number"] else return $ [ ModifyClient (\c -> c{clientProto = parsedProto, nick = newNick, webPassword = password, isChecker = True}) , CheckRegistered] where parsedProto = readInt_ protoNum#endifhandleCmd_NotEntered _ = return [ProtocolError "Incorrect command (state: not entered)"]