gameServer/ClientIO.hs
author unc0rr
Sun, 06 Feb 2011 18:59:53 +0300
changeset 4931 da43c36a6e92
parent 4904 0eab727d4717
child 4932 f11d80bac7ed
permissions -rw-r--r--
Don't accept EM message when the game isn't started
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 ScopedTypeVariables, OverloadedStrings #-}
1804
4e78ad846fb6 New game server:
unc0rr
parents:
diff changeset
     2
module ClientIO where
4e78ad846fb6 New game server:
unc0rr
parents:
diff changeset
     3
2296
19f2f76dc346 Patch for compiling with 6.10 (define NEW_EXCEPTIONS to do that)
unc0rr
parents: 2126
diff changeset
     4
import qualified Control.Exception as Exception
1804
4e78ad846fb6 New game server:
unc0rr
parents:
diff changeset
     5
import Control.Concurrent.Chan
2867
9be6693c78cb - Unbreak support for client versions prior to 0.9.13-dev
unc0rr
parents: 2352
diff changeset
     6
import Control.Concurrent
1804
4e78ad846fb6 New game server:
unc0rr
parents:
diff changeset
     7
import Control.Monad
4e78ad846fb6 New game server:
unc0rr
parents:
diff changeset
     8
import System.IO
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
     9
import Network
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
    10
import Network.Socket.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
    11
import qualified Data.ByteString.Char8 as B
1804
4e78ad846fb6 New game server:
unc0rr
parents:
diff changeset
    12
----------------
4e78ad846fb6 New game server:
unc0rr
parents:
diff changeset
    13
import CoreTypes
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
    14
import RoomsAndClients
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 Utils
3458
11cd56019f00 Make some more protocol commands work
unc0rr
parents: 3435
diff changeset
    16
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
    17
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
    18
pDelim :: 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
    19
pDelim = B.pack "\n\n"
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
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
bs2Packets :: B.ByteString -> ([[B.ByteString]], 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
    22
bs2Packets buf = unfoldrE extractPackets buf
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
    where
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
    24
    extractPackets :: B.ByteString -> Either B.ByteString ([B.ByteString], 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
    25
    extractPackets buf = 
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
    26
        let buf' = until (not . B.isPrefixOf pDelim) (B.drop 2) buf in
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
            let (bsPacket, bufTail) = B.breakSubstring pDelim buf' in
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
    28
                if B.null bufTail then
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
    29
                    Left bsPacket
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
                    else
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
    31
                    if B.null bsPacket then 
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
    32
                        Left bufTail
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
    33
                        else
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
    34
                        Right (B.splitWith (== '\n') bsPacket, bufTail)
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
    35
3500
af8390d807d6 Use sockets instead of handles, use bytestrings instead of strings
unc0rr
parents: 3458
diff changeset
    36
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
    37
listenLoop :: Socket -> Chan CoreMessage -> ClientIndex -> IO ()
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
    38
listenLoop sock chan ci = recieveWithBufferLoop B.empty
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
    39
    where
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
    40
        recieveWithBufferLoop recvBuf = do
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
    41
            recvBS <- recv sock 4096
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
    42
--            putStrLn $ show sock ++ " got smth: " ++ (show $ B.length recvBS)
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
    43
            unless (B.null recvBS) $ do
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
    44
                let (packets, newrecvBuf) = bs2Packets $ B.append recvBuf recvBS
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
    45
                forM_ packets sendPacket
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
    46
                recieveWithBufferLoop newrecvBuf
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
    47
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
    48
        sendPacket packet = writeChan chan $ ClientMessage (ci, packet)
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
    49
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
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
clientRecvLoop :: Socket -> Chan CoreMessage -> ClientIndex -> IO ()
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
clientRecvLoop s chan ci = do
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
    msg <- (listenLoop s chan ci >> return "Connection closed") `catch` (return . B.pack . show)
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
    clientOff msg
4585
6e747aef012f Another approach for fixing listener thread issues, should finally get rid of all problems. Not tested.
unc0rr
parents: 4579
diff changeset
    55
    where
6e747aef012f Another approach for fixing listener thread issues, should finally get rid of all problems. Not tested.
unc0rr
parents: 4579
diff changeset
    56
        clientOff msg = writeChan chan $ ClientMessage (ci, ["QUIT", msg])
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
    57
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
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
    59
4585
6e747aef012f Another approach for fixing listener thread issues, should finally get rid of all problems. Not tested.
unc0rr
parents: 4579
diff changeset
    60
clientSendLoop :: Socket -> ThreadId -> Chan CoreMessage -> Chan [B.ByteString] -> ClientIndex -> IO ()
6e747aef012f Another approach for fixing listener thread issues, should finally get rid of all problems. Not tested.
unc0rr
parents: 4579
diff changeset
    61
clientSendLoop s tId coreChan chan ci = do
4568
f85243bf890e Ok. This should pull 0.9.14.1 server into default
nemo
parents: 4295
diff changeset
    62
    answer <- readChan chan
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
    63
    Exception.handle
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
    64
        (\(e :: Exception.IOException) -> when (not $ isQuit answer) $ sendQuit e) $ do
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
    65
            sendAll s $ (B.unlines answer) `B.append` (B.singleton '\n')
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
    66
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
    67
    if (isQuit answer) then
4579
4e61c2a42121 Explicitly kill listening thread in try to prevent messages recieving bugs
unc0rr
parents: 4295
diff changeset
    68
        do
4585
6e747aef012f Another approach for fixing listener thread issues, should finally get rid of all problems. Not tested.
unc0rr
parents: 4579
diff changeset
    69
        Exception.handle (\(_ :: Exception.IOException) -> putStrLn "error on sClose") $ sClose s
4579
4e61c2a42121 Explicitly kill listening thread in try to prevent messages recieving bugs
unc0rr
parents: 4295
diff changeset
    70
        killThread tId
4585
6e747aef012f Another approach for fixing listener thread issues, should finally get rid of all problems. Not tested.
unc0rr
parents: 4579
diff changeset
    71
        writeChan coreChan $ Remove ci
2867
9be6693c78cb - Unbreak support for client versions prior to 0.9.13-dev
unc0rr
parents: 2352
diff changeset
    72
        else
4585
6e747aef012f Another approach for fixing listener thread issues, should finally get rid of all problems. Not tested.
unc0rr
parents: 4579
diff changeset
    73
        clientSendLoop s tId coreChan chan ci
1804
4e78ad846fb6 New game server:
unc0rr
parents:
diff changeset
    74
2867
9be6693c78cb - Unbreak support for client versions prior to 0.9.13-dev
unc0rr
parents: 2352
diff changeset
    75
    where
4608
d0f758d0ff91 Make client quit on send exception (was commented due to another approach in handling connection lost)
unc0rr
parents: 4585
diff changeset
    76
        sendQuit e = do
d0f758d0ff91 Make client quit on send exception (was commented due to another approach in handling connection lost)
unc0rr
parents: 4585
diff changeset
    77
            putStrLn $ show e
d0f758d0ff91 Make client quit on send exception (was commented due to another approach in handling connection lost)
unc0rr
parents: 4585
diff changeset
    78
            writeChan coreChan $ ClientMessage (ci, ["QUIT", B.pack $ show e])
2867
9be6693c78cb - Unbreak support for client versions prior to 0.9.13-dev
unc0rr
parents: 2352
diff changeset
    79
        isQuit ("BYE":xs) = True
9be6693c78cb - Unbreak support for client versions prior to 0.9.13-dev
unc0rr
parents: 2352
diff changeset
    80
        isQuit _ = False