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{-# LANGUAGE LambdaCase #-}
{-# LANGUAGE MultiWayIf #-}
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE RecordWildCards #-}
module Reaktor.Plugins.Register where
import Blessings
import Prelude.Extended
import Data.Aeson
import Data.ByteString.Char8.Extended (ByteString)
import qualified Data.ByteString.Char8.Extended as BS
import qualified Reaktor.Nick as Nick
import Reaktor
import System.Environment (lookupEnv)
data ConfigNickServ = ConfigNickServ
{ cnsPassFile :: FilePath
, cnsPrefix :: ByteString
}
instance FromJSON ConfigNickServ where
parseJSON = \case
Object v ->
ConfigNickServ
<$> v .: "passFile"
<*> v .:? "prefix" .!= "NickServ!NickServ@services."
_ -> undefined
data Config = Config
{ cNick :: Maybe ByteString
, cUser :: Maybe ByteString
, cReal :: ByteString
, cChannels :: [ByteString]
, cNickServ :: Maybe ConfigNickServ
}
instance Default Config where
def = Config def def "reaktor2" def def
instance FromJSON Config where
parseJSON = \case
Object v -> do
cNick <- v .:? "nick" .!= Nothing
cUser <- v .:? "user"
cReal <- v .:? "real" .!= cReal def
cChannels <- v .:? "channels" .!= []
cNickServ <- v .:? "NickServ" .!= cNickServ def
pure Config{..}
_ -> undefined
new :: Config -> Actions -> IO (Message -> IO ())
new Config{..} Actions{..} = do
let
isNickServEnabled = aIsSecure && isJust cNickServ
Just ConfigNickServ{..} = cNickServ
release nick pass = do
aSend (privmsg "NickServ" ["RELEASE", nick, pass])
channelsArg = BS.intercalate "," cChannels
-- TODO make this similar to privmsg (i.e. don't aSend)
join = do
-- TODO JOIN only if not already joined
-- i.e. not during subsequent nick changes
unless (BS.null channelsArg) $
aSend (Message Nothing "JOIN" [channelsArg])
start = do
nick <- maybe aGetNick pure cNick
user <-
maybe (maybe nick BS.pack <$> lookupEnv "LOGNAME") pure cUser
aSetNick nick
aSend (Message Nothing "NICK" [nick])
aSend (Message Nothing "USER" [user, "*", "0", cReal])
onNick newnick = do
nick <- aGetNick
when (newnick == nick) join
useRandomNick = do
nick <- Nick.getRandom
aSetNick nick
aSend (Message Nothing "NICK" [nick])
useNextNick = do
nick0 <- aGetNick
let nick = Nick.getNext nick0
aSetNick nick
aSend (Message Nothing "NICK" [nick])
useNextNickTemporarily = do
nick <- aGetNick
let tmpNick = Nick.getNext nick
-- do not aSetNick tmpNick
aSend (Message Nothing "NICK" [tmpNick])
if not isNickServEnabled then do
when (isJust cNickServ) $ do
aLog $ SGR [38,5,202] "! disabling NickServ due to insecure connection"
pure $ \case
Start -> start
Message (Just _self) "NICK" (newnick:[]) -> onNick newnick
Message _ "001" _ -> join
Message _ "432" _ -> useRandomNick
Message _ "433" _ -> useNextNick
Message _ "437" (_msgtarget:res:_reason:[]) -> do
nick <- aGetNick
when (res == nick) useNextNick
_ -> pure ()
else do
-- TODO do not fail, but disable NicServ
[pass] <- BS.lines <$> BS.readFile cnsPassFile
pure $ \case
Start -> start
Message (Just _self) "NICK" (newnick:[]) -> onNick newnick
-- RFC2812 RPL_WELCOME
Message _ "001" [msgtarget,_text] -> do
nick <- aGetNick
aSend (privmsg "NickServ" ["IDENTIFY", nick, pass])
when (msgtarget /= nick) (release nick pass)
-- TODO structured prefix, and check just for "NickServ"?
Message (Just prefix) "NOTICE" (msgtarget:text:[]) ->
when (prefix == cnsPrefix) $ do
nick <- aGetNick
let stx = ("\STX"<>) . (<>"\STX")
if
| text == "You are now identified for " <> stx nick <> "." -> do
-- otherwise join at NICK
when (msgtarget == nick) join
| text == stx nick <> " has been released." -> do
aSend (Message Nothing "NICK" [nick])
| text == "Invalid password for " <> stx nick <> "." -> do
-- TODO warning
when (msgtarget == nick) join
| text == stx nick <> " is not a registered nickname." -> do
-- TODO warning
when (msgtarget == nick) join
| otherwise ->
pure ()
-- RFC1459 ERR_ERRONEUSNICKNAME
Message (Just _servername) "432" (_msgtarget:_nick:_reason:[]) ->
useRandomNick
-- RFC1459 ERR_NICKNAMEINUSE
Message (Just _servername) "433" (_msgtarget:_nick:_reason:[]) ->
-- TODO what if nick0 /= nick? OR assert/prove nick0 == nick?
useNextNickTemporarily
--RFC2812 ERR_UNAVAILRESOURCE
Message (Just _servername) "437" (msgtarget:res:_reason:[]) -> do
nick <- aGetNick
when (res == nick) $
case msgtarget of
"*" -> useNextNickTemporarily
_ -> release nick pass
_ -> pure ()
|
