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{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE RecordWildCards #-}
import Control.Concurrent.Async (race)
import Control.Exception.Base (finally)
import Control.Monad (forever,unless)
import Data.List (intercalate,null)
import Data.Text (isPrefixOf,pack,replace,unpack)
import Network (withSocketsDo,PortID(..),connectTo)
import qualified Data.ByteString.Char8 as BS8
import System.IO (hSetBuffering,hSetNewlineMode,hPutStrLn,hClose,hGetLine,BufferMode(LineBuffering),universalNewlineMode,Handle)
import Kirk.Config
main :: IO ()
main = do
c@Config{..} <- parseConfigFromArgs
withSocketsDo $ do
h <- connectTo server_hostname (PortNumber server_port)
(`finally` hClose h) $ do
hSetNewlineMode h universalNewlineMode
hSetBuffering h LineBuffering
handshake c h >> race (ircAgent c h) (stdinForwarder c h) >>= print
handshake :: Config -> Handle -> IO ()
handshake Config{..} h = do
hPutStrLn h ("NICK " ++ nick)
hPutStrLn h ("USER " ++ nick ++ " * 0 :" ++ nick)
unless (null channels) $ hPutStrLn h ("JOIN " ++ channels)
where
channels = intercalate "," $ filter ((=='#') . head) msgtarget
ircAgent :: Config -> Handle -> IO ()
ircAgent Config{..} h = forever $ do
line <- hGetLine h
if (isPrefixOf "PING" (pack line)) then
hPutStrLn h (unpack (replace "PING" "PONG" (pack line)))
else
print line
stdinForwarder :: Config -> Handle -> IO ()
stdinForwarder Config{..} h = forever $ do
line <- BS8.getLine
hPutStrLn h ("PRIVMSG " ++ msgtarget' ++ " :" ++ BS8.unpack line)
where
msgtarget' = intercalate "," msgtarget
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