use P2P auth for git-remote-tor-annex

This changes the environment variable name to the more generic
GIT_ANNEX_P2P_AUTHTOKEN.

This commit was sponsored by andrea rota.

CmdLine/GitRemoteTorAnnex.hs

@@ -16,6 +16,8 @@ import Remote.Helper.Tor
 import Utility.Tor
 import Utility.AuthToken
 import Annex.UUID
+import P2P.Address
+import P2P.Auth
 
 run :: [String] -> IO ()
 run (_remotename:address:[]) = forever $ do
@@ -54,7 +56,7 @@ connectService address port service = do
 	state <- Annex.new =<< Git.CurrentRepo.get
 	Annex.eval state $ do
 		authtoken <- fromMaybe nullAuthToken
-			<$> getTorAuthTokenFor address
+			<$> loadP2PRemoteAuthToken (TorAnnex address port)
 		myuuid <- getUUID
 		g <- Annex.gitRepo
 		h <- liftIO $ torHandle =<< connectHiddenService address port
@@ -62,4 +64,4 @@ connectService address port service = do
 			v <- auth myuuid authtoken
 			case v of
 				Just _theiruuid -> connect service stdin stdout
-				Nothing -> giveup $ "authentication failed, perhaps you need to set " ++ torAuthTokenEnv
+				Nothing -> giveup $ "authentication failed, perhaps you need to set " ++ p2pAuthTokenEnv

P2P/Auth.hs

@@ -12,6 +12,7 @@ import Creds
 import P2P.Address
 import Utility.AuthToken
 import Utility.Tor
+import Utility.Env
 
 import qualified Data.Text as T
 
@@ -38,9 +39,19 @@ p2pAuthCredsFile :: FilePath
 p2pAuthCredsFile = "p2pauth"
 
 -- | Loads the AuthToken to use when connecting with a given P2P address.
+--
+-- It's loaded from the first line of the creds file, but
+-- GIT_ANNEX_P2P_AUTHTOKEN overrides.
 loadP2PRemoteAuthToken :: P2PAddress -> Annex (Maybe AuthToken)
-loadP2PRemoteAuthToken addr = maybe Nothing (toAuthToken . T.pack)
+loadP2PRemoteAuthToken addr = maybe Nothing mk <$> getM id
-	<$> readCacheCreds (addressCredsFile addr)
+	[ liftIO $ getEnv "GIT_ANNEX_P2P_AUTHTOKEN"
+	, readCacheCreds (addressCredsFile addr)
+	]
+  where
+	mk = toAuthToken . T.pack . takeWhile (/= '\n')
+
+p2pAuthTokenEnv :: String
+p2pAuthTokenEnv = "GIT_ANNEX_P2P_AUTHTOKEN"
 
 -- | Stores the AuthToken o use when connecting with a given P2P address.
 storeP2PRemoteAuthToken :: P2PAddress -> AuthToken -> Annex ()

Remote/Helper/Tor.hs

@@ -8,26 +8,8 @@
 module Remote.Helper.Tor where
 
 import Annex.Common
-import Utility.AuthToken
-import Creds
-import Utility.Tor
-import Utility.Env
 
 import Network.Socket
-import qualified Data.Text as T
-
--- 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"
 
 torHandle :: Socket -> IO Handle
 torHandle s = do

doc/git-remote-tor-annex.mdwn

@@ -15,7 +15,7 @@ over tor(1), communicating with a tor hidden service.
 
 The tor hidden service probably requires an authtoken to use it.
 The authtoken can be provided in the environment variable
-`GIT_ANNEX_TOR_AUTHTOKEN`. Or, if there is a file in 
+`GIT_ANNEX_P2P_AUTHTOKEN`. Or, if there is a file in 
 `.git/annex/creds/` matching the onion address of the hidden
 service, its first line is used as the authtoken.