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|
{-# LANGUAGE DeriveGeneric, DeriveAnyClass #-}
{-# LANGUAGE LambdaCase #-}
{-# LANGUAGE MultiWayIf #-}
{-# LANGUAGE OverloadedStrings #-}
module Reaktor.Plugins.NickServ (plugin) where
import Control.Monad (when)
import Data.Aeson
import Data.Aeson.Types (parseEither)
import qualified Data.ByteString.Char8 as BS
import GHC.Generics
import Reaktor.Message
import Reaktor.Types
import Reaktor.Utils (randomNick)
data NickServConfig = NickServConfig {
passFile :: FilePath,
prefix :: BS.ByteString,
channels :: [BS.ByteString]
}
deriving (FromJSON,Generic)
plugin :: Value -> IO Plugin
plugin v =
case parseEither parseJSON v of
Right cfg -> do
pass <- do
[pass] <- lines <$> readFile (passFile cfg)
return (BS.pack pass)
return $ Plugin (run pass cfg) True
Left err ->
error err
run :: BS.ByteString -> NickServConfig -> PluginFunc
run pass cfg msg = do
nick_ <- getNick
case msg of
Message _ "<start>" _ -> do
nick0 <- lift randomNick
sendMsg (Message Nothing "NICK" [nick0])
sendMsg (Message Nothing "USER" [nick_, "*", "0", nick_])
-- TODO structured prefix, and check just for "NickServ"
Message (Just _prefix@"NickServ!NickServ@services.")
"NOTICE"
(_msgtarget:text:[]) -> do
if
| text == "You are now identified for \STX" <> nick_ <> "\STX." -> do
sendMsg (Message Nothing "NICK" [nick_])
| text == "\STX" <> nick_ <> "\STX has been released." -> do
sendMsg (Message Nothing "NICK" [nick_])
| text == "Invalid password for \STX" <> nick_ <> "\STX." -> do
error (BS.unpack text)
| text == "\STX" <> nick_ <> "\STX is not a registered nickname." -> do
error (BS.unpack text)
| otherwise ->
return ()
Message (Just _self) "NICK" (newnick:[]) -> do
when (newnick == nick_) $ do
-- TODO JOIN only if not already joined
-- i.e. not during subsequent nick changes
sendMsg (Message Nothing "JOIN" [ BS.intercalate "," (channels cfg) ])
-- RFC1459 ERR_NICKNAMEINUSE
Message (Just _servername) "433" (_msgtarget:nickinuse:_reason:[]) -> do
if nickinuse == nick_
then do
sendMsg (privmsg "NickServ" ["RELEASE", nickinuse])
else do
nick0 <- lift randomNick
sendMsg (Message Nothing "NICK" [nick0])
--RFC2812 ERR_UNAVAILRESOURCE
Message (Just _servername) "437" (_msgtarget:nickunavail:_reason:[]) -> do
when (nickunavail == nick_) $ do
sendMsg (privmsg "NickServ" ["RELEASE", nickunavail])
--RFC2812 RPL_WELCOME
Message _ "001" [_nick,_s] -> do
sendMsg' (privmsg "NickServ" ["IDENTIFY", nick_, pass])
(privmsg "NickServ" ["IDENTIFY", nick_, "<password>"])
_ -> return ()
|
