1 files changed, 28 insertions, 0 deletions

diff --git a/Presence/XMPPServer.hs b/Presence/XMPPServer.hs
index 044ed9e4..4a859bc9 100644
--- a/Presence/XMPPServer.hs
+++ b/Presence/XMPPServer.hs
@@ -40,6 +40,33 @@ import Network.Socket
 import Data.String
 import Control.Monad.Trans.Maybe
 import Control.Monad.IO.Class
+import Control.DeepSeq
+import Control.Concurrent.STM
+
+-- | Jabber ID (JID) datatype
+data JID = JID { name :: Maybe ByteString
+               , server :: ByteString
+               , resource :: Maybe ByteString
+               }
+ deriving (Ord,Eq)
+
+instance Show JID where
+    show (JID n s r ) = L.unpack $ fmap (<++>"@") n <?++> s <++?> fmap ("/"<++>) r
+
+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)
+
+data JabberShow = Offline
+                | Away
+                | Available
+ deriving (Show,Enum,Ord,Eq,Read)
+
+data Presence = Presence JID JabberShow
+
+instance NFData Presence where
+    rnf (Presence jid stat) = rnf jid `seq` stat `seq` ()
 
 
 class XMPPSession session where
@@ -48,6 +75,7 @@ class XMPPSession session where
     setResource  :: session -> ByteString -> IO ()
     getJID       :: session -> IO ByteString
     closeSession :: session -> IO ()
+    subscribeToPresence :: session -> Maybe JID -> IO (TChan Presence)
 
 
 greet host = L.unlines