import Control.Concurrent.MVar (newEmptyMVar, putMVar, readMVar)
import Control.Monad.State (StateT, liftIO, get, runStateT)
import Control.Monad (forever)
-import Data.ByteString.Char8 (ByteString, pack, unpack)
+import Data.ByteString.Char8 (ByteString)
import Data.List (isPrefixOf)
import Network (PortNumber)
import qualified FuncTorrent.Tracker.Http as HT (trackerLoop)
import qualified FuncTorrent.Tracker.Udp as UT (trackerLoop)
import FuncTorrent.Tracker.Types (TState(..), TrackerEventState(..), TrackerProtocol(..), TrackerMsg(..))
-import FuncTorrent.Utils (Port, toPort)
import qualified FuncTorrent.FileSystem as FS (MsgChannel)
-import FuncTorrent.Peer (Peer)
+import FuncTorrent.PeerMsgs (Peer)
type MsgChannel = Chan TrackerMsg
-data TrackerUrl = TrackerUrl { protocol :: TrackerProtocol
- , host :: String
- , port :: Port
- , path :: String
- }
-
newTracker :: IO MsgChannel
newTracker = newChan
-parseUrl :: String -> TrackerUrl
-parseUrl url = TrackerUrl proto host port path
- where proto = getTrackerType url
- host = getHostname url
- port = getPort url
- path = getPath url
-
-getHostname :: String -> String
-getHostname url = takeWhile (/= ':') $ drop 2 $ dropWhile (/= '/') url
-
-getPort :: String -> Port
-getPort url = toPort . pack $ takeWhile (/= '/') $ drop 1 $ dropWhile (/= ':') $ drop 2 $ dropWhile (/= '/') url
-
-getPath :: String -> String
-getPath url = dropWhile (/= '/') $ dropWhile (/= ':') $ drop 1 $ dropWhile (/= ':') url
-
runTracker :: MsgChannel -> FS.MsgChannel -> ByteString -> PortNumber
-> String -> [String] -> Integer -> IO ()
runTracker msgChannel fsChan infohash port peerId announceList sz = do
+ let fn = getTrackerLoopFn turl
ps <- newEmptyMVar
- let initialTState = TState { currentState = None
- , connectedPeers = ps
- , left = sz }
- turl = head announceList
- host = getHostname turl
- case getTrackerType turl of
- Http -> do
- _ <- forkIO $ HT.trackerLoop host port peerId infohash fsChan initialTState
- runStateT (msgHandler msgChannel) initialTState
- return ()
- Udp -> do
- _ <- forkIO $ UT.trackerLoop host (fromIntegral port) peerId infohash fsChan initialTState
- return ()
- _ ->
- error "Tracker Protocol unimplemented"
+ _ <- forkIO $ fn turl port peerId infohash fsChan (initialTState ps)
+ _ <- runStateT (msgHandler msgChannel) (initialTState ps)
+ return ()
+ where getTrackerLoopFn turl' =
+ case getTrackerType turl' of
+ Http -> HT.trackerLoop
+ Udp -> UT.trackerLoop
+ _ -> error "Tracker Protocol unimplemented"
+ initialTState ps' = TState { currentState = None
+ , connectedPeers = ps'
+ , left = sz }
+ turl = head announceList
getTrackerType :: String -> TrackerProtocol
getTrackerType url | "http://" `isPrefixOf` url = Http
| "udp://" `isPrefixOf` url = Udp
- | otherwise = UnknownProtocol
+ | otherwise = UnknownProtocol
msgHandler :: MsgChannel -> StateT TState IO ()