--- a/gameServer/Actions.hs	Sun Aug 05 15:00:59 2012 -0400
+++ b/gameServer/Actions.hs	Sun Aug 05 23:03:49 2012 +0400
@@ -423,11 +423,22 @@
 processAction JoinLobby = do
     chan <- client's sendChan
     clientNick <- client's nick
-    (lobbyNicks, clientsChans) <- liftM (unzip . Prelude.map (nick &&& sendChan) . Prelude.filter logonPassed) $! allClientsS
-    mapM_ processAction $
-        AnswerClients clientsChans ["LOBBY:JOINED", clientNick]
-        : AnswerClients [chan] ("LOBBY:JOINED" : clientNick : lobbyNicks)
-        : [ModifyClient (\cl -> cl{logonPassed = True}), SendServerMessage]
+    isAuthenticated <- liftM (not . B.null) $ client's webPassword
+    isAdmin <- client's isAdministrator
+    loggedInClients <- liftM (Prelude.filter logonPassed) $! allClientsS
+    let (lobbyNicks, clientsChans) = unzip . L.map (nick &&& sendChan) $ loggedInClients
+    let authenticatedNicks = L.map nick . L.filter (not . B.null . webPassword) $ loggedInClients
+    let adminsNicks = L.map nick . L.filter isAdministrator $ loggedInClients
+    let clFlags = B.concat . L.concat $ [["u" | isAuthenticated], ["a" | isAdmin]]
+    mapM_ processAction . concat $ [
+        [AnswerClients clientsChans ["LOBBY:JOINED", clientNick]]
+        , [AnswerClients [chan] ("LOBBY:JOINED" : clientNick : lobbyNicks)]
+        , [AnswerClients [chan] ("CLIENT_FLAGS" : "+u" : authenticatedNicks) | not $ null authenticatedNicks]
+        , [AnswerClients [chan] ("CLIENT_FLAGS" : "+a" : adminsNicks) | not $ null adminsNicks]
+        , [AnswerClients (chan : clientsChans) ["CLIENT_FLAGS",  B.concat["+" , clFlags], clientNick] | not $ B.null clFlags]
+        , [ModifyClient (\cl -> cl{logonPassed = True})]
+        , [SendServerMessage]
+        ]
 
 
 processAction (KickClient kickId) = do