unified AuthToken type between webapp and tor

Remote/Helper/P2P.hs

@@ -12,6 +12,7 @@ module Remote.Helper.P2P where
 import qualified Utility.SimpleProtocol as Proto
 import Types.Key
 import Types.UUID
+import Utility.AuthToken
 import Utility.Applicative
 import Utility.PartialPrelude
 
@@ -23,15 +24,6 @@ import System.Exit (ExitCode(..))
 import System.IO
 import qualified Data.ByteString.Lazy as L
 
-newtype AuthToken = AuthToken String
-	deriving (Show)
-
-mkAuthToken :: String -> Maybe AuthToken
-mkAuthToken = fmap AuthToken . headMaybe . lines
-
-nullAuthToken :: AuthToken
-nullAuthToken = AuthToken ""
-
 newtype Offset = Offset Integer
 	deriving (Show)
 
@@ -111,10 +103,6 @@ instance Proto.Serializable Len where
 	serialize (Len n) = show n
 	deserialize = Len <$$> readish
 
-instance Proto.Serializable AuthToken where
-	serialize (AuthToken s) = s
-	deserialize = Just . AuthToken
-
 instance Proto.Serializable Service where
 	serialize UploadPack = "git-upload-pack"
 	serialize ReceivePack = "git-receive-pack"

Remote/Helper/Tor.hs

@@ -8,19 +8,23 @@
 module Remote.Helper.Tor where
 
 import Annex.Common
-import Remote.Helper.P2P (mkAuthToken, AuthToken)
+import Utility.AuthToken
 import Creds
 import Utility.Tor
 import Utility.Env
 
 import Network.Socket
+import qualified Data.Text as T
 
-getTorAuthToken :: OnionAddress -> Annex (Maybe AuthToken)
-getTorAuthToken (OnionAddress onionaddress) =
-	maybe Nothing mkAuthToken <$> getM id 
+-- Read the first line of the creds file. Environment variable overrides.
+getTorAuthTokenFor :: OnionAddress -> Annex (Maybe AuthToken)
+getTorAuthTokenFor (OnionAddress onionaddress) =
+	maybe Nothing mk <$> getM id 
 		[ liftIO $ getEnv torAuthTokenEnv
 		, readCacheCreds onionaddress
 		]
+  where
+	mk = toAuthToken . T.pack . takeWhile (/= '\n')
 
 torAuthTokenEnv :: String
 torAuthTokenEnv = "GIT_ANNEX_TOR_AUTHTOKEN"