add P2P.Auth

P2P/Auth.hs

@@ -0,0 +1,30 @@
+{- P2P protocol, authorization
+ -
+ - Copyright 2016 Joey Hess <id@joeyh.name>
+ -
+ - Licensed under the GNU GPL version 3 or higher.
+ -}
+
+module P2P.Auth where
+
+import Common
+import Utility.AuthToken
+
+import qualified Data.Text as T
+
+-- Use .git/annex/creds/p2p to hold AuthTokens of authorized peers.
+getAuthTokens :: Annex AllowedAuthTokens
+getAuthTokens = allowedAuthTokens <$> getAuthTokens'
+
+getAuthTokens' :: Annex [AuthTokens]
+getAuthTokens' = mapMaybe toAuthToken
+	. map T.pack
+	. lines
+	. fromMaybe []
+	<$> readCacheCreds "tor"
+
+addAuthToken :: AuthToken -> Annex ()
+addAuthToken t = do
+	ts <- getAuthTokens'
+	let d = unlines $ map (T.unpack . fromAuthToken) (t:ts)
+	writeCacheCreds d "tor"