gameServer/Utils.hs
author unc0rr
Sun, 06 Feb 2011 21:50:29 +0300
changeset 4932 f11d80bac7ed
parent 4921 2efad3acbb74
child 4936 d65d438acd23
permissions -rw-r--r--
- Take into account hlint suggestions - Fix almost all warnings
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
4295
1f5604cd99be This revision should, in theory, correctly merge 0.9.14 and tip, so that future merges of 0.9.14 should work properly
nemo
parents: 4242
diff changeset
     1
{-# LANGUAGE OverloadedStrings #-}
1804
4e78ad846fb6 New game server:
unc0rr
parents:
diff changeset
     2
module Utils where
4e78ad846fb6 New game server:
unc0rr
parents:
diff changeset
     3
4e78ad846fb6 New game server:
unc0rr
parents:
diff changeset
     4
import Data.Char
4e78ad846fb6 New game server:
unc0rr
parents:
diff changeset
     5
import Data.Word
4e78ad846fb6 New game server:
unc0rr
parents:
diff changeset
     6
import qualified Data.Map as Map
2304
a6e733ad0366 Implement filtering in server
unc0rr
parents: 2150
diff changeset
     7
import qualified Data.Set as Set
1917
c94045b70142 - Better ip2string implementation
unc0rr
parents: 1804
diff changeset
     8
import Numeric
c94045b70142 - Better ip2string implementation
unc0rr
parents: 1804
diff changeset
     9
import Network.Socket
1964
dc9ea05c9d2f - Another way of defining official server
unc0rr
parents: 1953
diff changeset
    10
import System.IO
1917
c94045b70142 - Better ip2string implementation
unc0rr
parents: 1804
diff changeset
    11
import qualified Data.List as List
2349
ba7a0813c532 Some fixes suggested by hlint
unc0rr
parents: 2310
diff changeset
    12
import Control.Monad
1804
4e78ad846fb6 New game server:
unc0rr
parents:
diff changeset
    13
-------------------------------------------------
4e78ad846fb6 New game server:
unc0rr
parents:
diff changeset
    14
import qualified Codec.Binary.Base64 as Base64
4295
1f5604cd99be This revision should, in theory, correctly merge 0.9.14 and tip, so that future merges of 0.9.14 should work properly
nemo
parents: 4242
diff changeset
    15
import qualified Data.ByteString.Char8 as B
1f5604cd99be This revision should, in theory, correctly merge 0.9.14 and tip, so that future merges of 0.9.14 should work properly
nemo
parents: 4242
diff changeset
    16
import qualified Data.ByteString as BW
1804
4e78ad846fb6 New game server:
unc0rr
parents:
diff changeset
    17
import CoreTypes
4e78ad846fb6 New game server:
unc0rr
parents:
diff changeset
    18
1917
c94045b70142 - Better ip2string implementation
unc0rr
parents: 1804
diff changeset
    19
4295
1f5604cd99be This revision should, in theory, correctly merge 0.9.14 and tip, so that future merges of 0.9.14 should work properly
nemo
parents: 4242
diff changeset
    20
sockAddr2String :: SockAddr -> IO B.ByteString
1f5604cd99be This revision should, in theory, correctly merge 0.9.14 and tip, so that future merges of 0.9.14 should work properly
nemo
parents: 4242
diff changeset
    21
sockAddr2String (SockAddrInet _ hostAddr) = liftM B.pack $ inet_ntoa hostAddr
1917
c94045b70142 - Better ip2string implementation
unc0rr
parents: 1804
diff changeset
    22
sockAddr2String (SockAddrInet6 _ _ (a, b, c, d) _) =
4295
1f5604cd99be This revision should, in theory, correctly merge 0.9.14 and tip, so that future merges of 0.9.14 should work properly
nemo
parents: 4242
diff changeset
    23
    return $ B.pack $ (foldr1 (.)
4932
f11d80bac7ed - Take into account hlint suggestions
unc0rr
parents: 4921
diff changeset
    24
        $ List.intersperse (':':)
f11d80bac7ed - Take into account hlint suggestions
unc0rr
parents: 4921
diff changeset
    25
        $ concatMap (\n -> (\(a0, a1) -> [showHex a0, showHex a1]) $ divMod n 65536) [a, b, c, d]) []
1917
c94045b70142 - Better ip2string implementation
unc0rr
parents: 1804
diff changeset
    26
4295
1f5604cd99be This revision should, in theory, correctly merge 0.9.14 and tip, so that future merges of 0.9.14 should work properly
nemo
parents: 4242
diff changeset
    27
toEngineMsg :: B.ByteString -> B.ByteString
4932
f11d80bac7ed - Take into account hlint suggestions
unc0rr
parents: 4921
diff changeset
    28
toEngineMsg msg = B.pack $ Base64.encode (fromIntegral (BW.length msg) : BW.unpack msg)
1804
4e78ad846fb6 New game server:
unc0rr
parents:
diff changeset
    29
4295
1f5604cd99be This revision should, in theory, correctly merge 0.9.14 and tip, so that future merges of 0.9.14 should work properly
nemo
parents: 4242
diff changeset
    30
fromEngineMsg :: B.ByteString -> Maybe B.ByteString
4932
f11d80bac7ed - Take into account hlint suggestions
unc0rr
parents: 4921
diff changeset
    31
fromEngineMsg msg = liftM BW.pack (Base64.decode (B.unpack msg) >>= removeLength)
2867
9be6693c78cb - Unbreak support for client versions prior to 0.9.13-dev
unc0rr
parents: 2747
diff changeset
    32
    where
9be6693c78cb - Unbreak support for client versions prior to 0.9.13-dev
unc0rr
parents: 2747
diff changeset
    33
        removeLength (x:xs) = if length xs == fromIntegral x then Just xs else Nothing
9be6693c78cb - Unbreak support for client versions prior to 0.9.13-dev
unc0rr
parents: 2747
diff changeset
    34
        removeLength _ = Nothing
2304
a6e733ad0366 Implement filtering in server
unc0rr
parents: 2150
diff changeset
    35
4295
1f5604cd99be This revision should, in theory, correctly merge 0.9.14 and tip, so that future merges of 0.9.14 should work properly
nemo
parents: 4242
diff changeset
    36
checkNetCmd :: B.ByteString -> (Bool, Bool)
1f5604cd99be This revision should, in theory, correctly merge 0.9.14 and tip, so that future merges of 0.9.14 should work properly
nemo
parents: 4242
diff changeset
    37
checkNetCmd = check . liftM B.unpack . fromEngineMsg
2867
9be6693c78cb - Unbreak support for client versions prior to 0.9.13-dev
unc0rr
parents: 2747
diff changeset
    38
    where
9be6693c78cb - Unbreak support for client versions prior to 0.9.13-dev
unc0rr
parents: 2747
diff changeset
    39
        check Nothing = (False, False)
4932
f11d80bac7ed - Take into account hlint suggestions
unc0rr
parents: 4921
diff changeset
    40
        check (Just (m:_)) = (m `Set.member` legalMessages, m == '+')
2867
9be6693c78cb - Unbreak support for client versions prior to 0.9.13-dev
unc0rr
parents: 2747
diff changeset
    41
        check _ = (False, False)
9be6693c78cb - Unbreak support for client versions prior to 0.9.13-dev
unc0rr
parents: 2747
diff changeset
    42
        legalMessages = Set.fromList $ "M#+LlRrUuDdZzAaSjJ,sFNpPwtghb12345" ++ slotMessages
9be6693c78cb - Unbreak support for client versions prior to 0.9.13-dev
unc0rr
parents: 2747
diff changeset
    43
        slotMessages = "\128\129\130\131\132\133\134\135\136\137\138"
1804
4e78ad846fb6 New game server:
unc0rr
parents:
diff changeset
    44
4e78ad846fb6 New game server:
unc0rr
parents:
diff changeset
    45
maybeRead :: Read a => String -> Maybe a
4e78ad846fb6 New game server:
unc0rr
parents:
diff changeset
    46
maybeRead s = case reads s of
2867
9be6693c78cb - Unbreak support for client versions prior to 0.9.13-dev
unc0rr
parents: 2747
diff changeset
    47
    [(x, rest)] | all isSpace rest -> Just x
9be6693c78cb - Unbreak support for client versions prior to 0.9.13-dev
unc0rr
parents: 2747
diff changeset
    48
    _         -> Nothing
1804
4e78ad846fb6 New game server:
unc0rr
parents:
diff changeset
    49
4295
1f5604cd99be This revision should, in theory, correctly merge 0.9.14 and tip, so that future merges of 0.9.14 should work properly
nemo
parents: 4242
diff changeset
    50
teamToNet :: TeamInfo -> [B.ByteString]
1f5604cd99be This revision should, in theory, correctly merge 0.9.14 and tip, so that future merges of 0.9.14 should work properly
nemo
parents: 4242
diff changeset
    51
teamToNet team =
1f5604cd99be This revision should, in theory, correctly merge 0.9.14 and tip, so that future merges of 0.9.14 should work properly
nemo
parents: 4242
diff changeset
    52
        "ADD_TEAM"
1f5604cd99be This revision should, in theory, correctly merge 0.9.14 and tip, so that future merges of 0.9.14 should work properly
nemo
parents: 4242
diff changeset
    53
        : teamname team
1f5604cd99be This revision should, in theory, correctly merge 0.9.14 and tip, so that future merges of 0.9.14 should work properly
nemo
parents: 4242
diff changeset
    54
        : teamgrave team
1f5604cd99be This revision should, in theory, correctly merge 0.9.14 and tip, so that future merges of 0.9.14 should work properly
nemo
parents: 4242
diff changeset
    55
        : teamfort team
1f5604cd99be This revision should, in theory, correctly merge 0.9.14 and tip, so that future merges of 0.9.14 should work properly
nemo
parents: 4242
diff changeset
    56
        : teamvoicepack team
1f5604cd99be This revision should, in theory, correctly merge 0.9.14 and tip, so that future merges of 0.9.14 should work properly
nemo
parents: 4242
diff changeset
    57
        : teamflag team
1f5604cd99be This revision should, in theory, correctly merge 0.9.14 and tip, so that future merges of 0.9.14 should work properly
nemo
parents: 4242
diff changeset
    58
        : teamowner team
4932
f11d80bac7ed - Take into account hlint suggestions
unc0rr
parents: 4921
diff changeset
    59
        : (B.pack . show $ difficulty team)
4295
1f5604cd99be This revision should, in theory, correctly merge 0.9.14 and tip, so that future merges of 0.9.14 should work properly
nemo
parents: 4242
diff changeset
    60
        : hhsInfo
2867
9be6693c78cb - Unbreak support for client versions prior to 0.9.13-dev
unc0rr
parents: 2747
diff changeset
    61
    where
4932
f11d80bac7ed - Take into account hlint suggestions
unc0rr
parents: 4921
diff changeset
    62
        hhsInfo = concatMap (\(HedgehogInfo n hat) -> [n, hat]) $ hedgehogs team
1804
4e78ad846fb6 New game server:
unc0rr
parents:
diff changeset
    63
4e78ad846fb6 New game server:
unc0rr
parents:
diff changeset
    64
modifyTeam :: TeamInfo -> RoomInfo -> RoomInfo
4e78ad846fb6 New game server:
unc0rr
parents:
diff changeset
    65
modifyTeam team room = room{teams = replaceTeam team $ teams room}
2867
9be6693c78cb - Unbreak support for client versions prior to 0.9.13-dev
unc0rr
parents: 2747
diff changeset
    66
    where
9be6693c78cb - Unbreak support for client versions prior to 0.9.13-dev
unc0rr
parents: 2747
diff changeset
    67
    replaceTeam _ [] = error "modifyTeam: no such team"
4932
f11d80bac7ed - Take into account hlint suggestions
unc0rr
parents: 4921
diff changeset
    68
    replaceTeam tm (t:ts) =
f11d80bac7ed - Take into account hlint suggestions
unc0rr
parents: 4921
diff changeset
    69
        if teamname tm == teamname t then
f11d80bac7ed - Take into account hlint suggestions
unc0rr
parents: 4921
diff changeset
    70
            tm : ts
2867
9be6693c78cb - Unbreak support for client versions prior to 0.9.13-dev
unc0rr
parents: 2747
diff changeset
    71
        else
4932
f11d80bac7ed - Take into account hlint suggestions
unc0rr
parents: 4921
diff changeset
    72
            t : replaceTeam tm ts
1804
4e78ad846fb6 New game server:
unc0rr
parents:
diff changeset
    73
4295
1f5604cd99be This revision should, in theory, correctly merge 0.9.14 and tip, so that future merges of 0.9.14 should work properly
nemo
parents: 4242
diff changeset
    74
illegalName :: B.ByteString -> Bool
4581
af2e231bd9be Apply new nick restrictions in server rewrite too
unc0rr
parents: 4569
diff changeset
    75
illegalName b = null s || all isSpace s || isSpace (head s) || isSpace (last s)
af2e231bd9be Apply new nick restrictions in server rewrite too
unc0rr
parents: 4569
diff changeset
    76
    where
af2e231bd9be Apply new nick restrictions in server rewrite too
unc0rr
parents: 4569
diff changeset
    77
        s = B.unpack b
2150
45b695f3a7b9 Forbid room names and nicknames consisting only of space characters
unc0rr
parents: 2113
diff changeset
    78
4295
1f5604cd99be This revision should, in theory, correctly merge 0.9.14 and tip, so that future merges of 0.9.14 should work properly
nemo
parents: 4242
diff changeset
    79
protoNumber2ver :: Word16 -> B.ByteString
4569
a835465b4fd2 Convert function to a map
unc0rr
parents: 4337
diff changeset
    80
protoNumber2ver v = Map.findWithDefault "Unknown" v vermap
a835465b4fd2 Convert function to a map
unc0rr
parents: 4337
diff changeset
    81
    where
a835465b4fd2 Convert function to a map
unc0rr
parents: 4337
diff changeset
    82
        vermap = Map.fromList [
a835465b4fd2 Convert function to a map
unc0rr
parents: 4337
diff changeset
    83
            (17, "0.9.7-dev"),
a835465b4fd2 Convert function to a map
unc0rr
parents: 4337
diff changeset
    84
            (19, "0.9.7"),
a835465b4fd2 Convert function to a map
unc0rr
parents: 4337
diff changeset
    85
            (20, "0.9.8-dev"),
a835465b4fd2 Convert function to a map
unc0rr
parents: 4337
diff changeset
    86
            (21, "0.9.8"),
a835465b4fd2 Convert function to a map
unc0rr
parents: 4337
diff changeset
    87
            (22, "0.9.9-dev"),
a835465b4fd2 Convert function to a map
unc0rr
parents: 4337
diff changeset
    88
            (23, "0.9.9"),
a835465b4fd2 Convert function to a map
unc0rr
parents: 4337
diff changeset
    89
            (24, "0.9.10-dev"),
a835465b4fd2 Convert function to a map
unc0rr
parents: 4337
diff changeset
    90
            (25, "0.9.10"),
a835465b4fd2 Convert function to a map
unc0rr
parents: 4337
diff changeset
    91
            (26, "0.9.11-dev"),
a835465b4fd2 Convert function to a map
unc0rr
parents: 4337
diff changeset
    92
            (27, "0.9.11"),
a835465b4fd2 Convert function to a map
unc0rr
parents: 4337
diff changeset
    93
            (28, "0.9.12-dev"),
a835465b4fd2 Convert function to a map
unc0rr
parents: 4337
diff changeset
    94
            (29, "0.9.12"),
a835465b4fd2 Convert function to a map
unc0rr
parents: 4337
diff changeset
    95
            (30, "0.9.13-dev"),
a835465b4fd2 Convert function to a map
unc0rr
parents: 4337
diff changeset
    96
            (31, "0.9.13"),
a835465b4fd2 Convert function to a map
unc0rr
parents: 4337
diff changeset
    97
            (32, "0.9.14-dev"),
a835465b4fd2 Convert function to a map
unc0rr
parents: 4337
diff changeset
    98
            (33, "0.9.14"),
a835465b4fd2 Convert function to a map
unc0rr
parents: 4337
diff changeset
    99
            (34, "0.9.15-dev"),
a835465b4fd2 Convert function to a map
unc0rr
parents: 4337
diff changeset
   100
            (35, "0.9.14.1"),
a835465b4fd2 Convert function to a map
unc0rr
parents: 4337
diff changeset
   101
            (37, "0.9.15"),
4583
ab82045ea083 Fix typo in version information
unc0rr
parents: 4581
diff changeset
   102
            (38, "0.9.16-dev")]
1804
4e78ad846fb6 New game server:
unc0rr
parents:
diff changeset
   103
4921
2efad3acbb74 Fix build of official server
unc0rr
parents: 4904
diff changeset
   104
askFromConsole :: B.ByteString -> IO B.ByteString
1964
dc9ea05c9d2f - Another way of defining official server
unc0rr
parents: 1953
diff changeset
   105
askFromConsole msg = do
4921
2efad3acbb74 Fix build of official server
unc0rr
parents: 4904
diff changeset
   106
    B.putStr msg
2867
9be6693c78cb - Unbreak support for client versions prior to 0.9.13-dev
unc0rr
parents: 2747
diff changeset
   107
    hFlush stdout
4921
2efad3acbb74 Fix build of official server
unc0rr
parents: 4904
diff changeset
   108
    B.getLine
4295
1f5604cd99be This revision should, in theory, correctly merge 0.9.14 and tip, so that future merges of 0.9.14 should work properly
nemo
parents: 4242
diff changeset
   109
1f5604cd99be This revision should, in theory, correctly merge 0.9.14 and tip, so that future merges of 0.9.14 should work properly
nemo
parents: 4242
diff changeset
   110
1f5604cd99be This revision should, in theory, correctly merge 0.9.14 and tip, so that future merges of 0.9.14 should work properly
nemo
parents: 4242
diff changeset
   111
unfoldrE :: (b -> Either b (a, b)) -> b -> ([a], b)
1f5604cd99be This revision should, in theory, correctly merge 0.9.14 and tip, so that future merges of 0.9.14 should work properly
nemo
parents: 4242
diff changeset
   112
unfoldrE f b  =
1f5604cd99be This revision should, in theory, correctly merge 0.9.14 and tip, so that future merges of 0.9.14 should work properly
nemo
parents: 4242
diff changeset
   113
    case f b of
1f5604cd99be This revision should, in theory, correctly merge 0.9.14 and tip, so that future merges of 0.9.14 should work properly
nemo
parents: 4242
diff changeset
   114
        Right (a, new_b) -> let (a', b') = unfoldrE f new_b in (a : a', b')
1f5604cd99be This revision should, in theory, correctly merge 0.9.14 and tip, so that future merges of 0.9.14 should work properly
nemo
parents: 4242
diff changeset
   115
        Left new_b       -> ([], new_b)
1f5604cd99be This revision should, in theory, correctly merge 0.9.14 and tip, so that future merges of 0.9.14 should work properly
nemo
parents: 4242
diff changeset
   116
1f5604cd99be This revision should, in theory, correctly merge 0.9.14 and tip, so that future merges of 0.9.14 should work properly
nemo
parents: 4242
diff changeset
   117
showB :: Show a => a -> B.ByteString
1f5604cd99be This revision should, in theory, correctly merge 0.9.14 and tip, so that future merges of 0.9.14 should work properly
nemo
parents: 4242
diff changeset
   118
showB = B.pack .show