basic AI bazooka wrapping.
{-
* 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 where
import Control.Monad.Reader
import qualified Data.ByteString.Lazy as BL
import qualified Data.ByteString.Char8 as B
import Data.Digest.Pure.SHA
--------------------------------------
import CoreTypes
import Utils
import RoomsAndClients
import HandlerUtils
handleCmd_NotEntered :: CmdHandler
handleCmd_NotEntered ["NICK", newNick] = do
(ci, irnc) <- ask
let cl = irnc `client` ci
if not . B.null $ nick cl then return [ProtocolError $ loc "Nickname already provided."]
else
if illegalName newNick then return [ByeClient $ loc "Illegal nickname! Nicknames must be between 1-40 characters long, must not have a trailing or leading space and must not have any of these characters: $()*+?[]^{|}"]
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_ protoNum
handleCmd_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
#endif
handleCmd_NotEntered _ = return [ProtocolError "Incorrect command (state: not entered)"]