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{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE TypeFamilies #-}
module XMPPTypes where
import Network.Socket
( Socket
, Family(..)
, SockAddr(..)
, getAddrInfo
, addrCanonName
, addrAddress
, defaultHints
, AddrInfo(..)
, AddrInfoFlag(..)
)
import Network.BSD (getHostName)
import System.IO (Handle)
import Control.Concurrent.STM (TChan)
import Data.ByteString.Lazy.Char8 as L
( ByteString
, unpack
, pack
, splitWith
, uncons
, takeWhile
)
import Text.Show.ByteString as L
import Data.Binary.Builder as B
import Data.Binary.Put
import Control.DeepSeq
import ByteStringOperators
import SocketLike
class XMPPSession session where
data XMPPClass session
newSession :: SocketLike sock => XMPPClass session -> sock -> IO session
setResource :: session -> ByteString -> IO ()
getJID :: session -> IO JID
closeSession :: session -> IO ()
subscribe :: session -> Maybe JID -> IO (TChan Presence)
announcePresence :: session -> Presence -> IO ()
class XMPPConfig config where
getBuddies :: config -> ByteString -> IO [ByteString]
getSubscribers :: config -> ByteString -> IO [ByteString]
-- | Jabber ID (JID) datatype
data JID = JID { name :: Maybe ByteString
, peer :: Peer
, resource :: Maybe ByteString
}
deriving (Eq,Ord)
data JabberShow = Offline
| Away
| Available
deriving (Prelude.Show,Enum,Ord,Eq,Read)
data Presence = Presence JID JabberShow
deriving Prelude.Show
data Peer = LocalHost | RemotePeer SockAddr
deriving (Eq,Prelude.Show)
instance Ord Peer where
LocalHost <= _
= True
RemotePeer (SockAddrUnix a) <= RemotePeer (SockAddrUnix b)
= a <= b
RemotePeer (SockAddrUnix _) <= _
= True
RemotePeer (SockAddrInet aport a) <= RemotePeer (SockAddrInet bport b)
= (a,aport) <= (b,bport)
RemotePeer (SockAddrInet aport a) <= _
= True
RemotePeer (SockAddrInet6 aport aflow a ascope) <= RemotePeer (SockAddrInet6 bport bflow b bscope)
= (a,aport,ascope,aflow) <= (b,bport,bscope,bflow)
a <= b = False
instance L.Show JID where
showp (JID n s r ) = putBuilder . B.fromLazyByteString $ n <$++> "@" <?++> showPeer s <++?> "/" <++$> r
instance Prelude.Show JID where
show jid = L.unpack $ L.show jid
instance NFData JID where
rnf v@(JID n s r) = n `seq` s `seq` r `seq` ()
jid user host rsrc = JID (Just user) host (Just rsrc)
showPeer :: Peer -> ByteString
showPeer LocalHost = "localhost"
showPeer (RemotePeer addr@(SockAddrInet _ _)) = pack $ stripColon (Prelude.show addr)
where stripColon s = pre where (pre,port) = break (==':') s
showPeer (RemotePeer addr@(SockAddrInet6 _ _ _ _)) = pack $ stripColon (Prelude.show addr)
where stripColon s = if null bracket then pre else pre ++ "]"
where
(pre,bracket) = break (==']') s
is_remote (RemotePeer _) = True
is_remote _ = False
parseHostNameJID :: ByteString -> IO JID
parseHostNameJID jid = do
let (name,peer_string,rsc) = splitJID jid
hints = Just $ defaultHints { addrFlags = [ AI_CANONNAME ] }
peer <- do
if peer_string=="localhost"
then return LocalHost
else do
-- putStrLn $ "getAddrInfo 3 " ++ Prelude.show ( Just (unpack peer_string))
info <- getAddrInfo hints (Just (unpack peer_string)) Nothing -- (Just "xmpp-server")
let info0 = head info
cname = addrCanonName info0
if cname==Just "localhost"
then return LocalHost
else do
self <- getHostName
return $ if Just self==cname
then LocalHost
else RemotePeer (addrAddress info0)
return $ JID name peer rsc
splitJID :: ByteString -> (Maybe ByteString,ByteString,Maybe ByteString)
splitJID bjid =
let xs = L.splitWith (=='@') bjid
ys = L.splitWith (=='/') (last xs)
server = head ys
name
= case xs of
(n:s:_) -> Just n
(s:_) -> Nothing
rsrc = case ys of
(s:_:_) -> Just $ last ys
_ -> Nothing
in (name,server,rsrc)
strip_brackets s =
case L.uncons s of
Just ('[',t) -> L.takeWhile (/=']') t
_ -> s
parseAddressJID :: ByteString -> IO JID
parseAddressJID jid = do
let (name,peer_string,rsc) = splitJID jid
hints = Just $ defaultHints { addrFlags = [ {- AI_NUMERICHOST, -} AI_CANONNAME ] }
peer_string' = unpack . strip_brackets $ peer_string
peer <- do
-- putStrLn $ "getAddrInfo 2 " ++ Prelude.show ( Just (unpack peer_string))
info <- getAddrInfo hints (Just peer_string') Nothing -- (Just "xmpp-server")
let info0 = head info
return . RemotePeer . addrAddress $ info0
return $ JID name peer rsc
peerAddr :: Peer -> SockAddr
peerAddr (RemotePeer addr) = addr
-- peerAddr LocalHost = throw exception
socketFamily (SockAddrInet _ _) = AF_INET
socketFamily (SockAddrInet6 _ _ _ _) = AF_INET6
socketFamily (SockAddrUnix _) = AF_UNIX
|
