git-annex/CmdLine/GitRemoteTorAnnex.hs
Joey Hess 6134431254
clean P2P protocol shutdown on EOF try 2
Same goal as b18fb1e343 but without
breaking backwards compatability. Just return IO exceptions when running
the P2P protocol, so that git-annex-shell can detect eof and avoid the
ugly message.

This commit was sponsored by Ethan Aubin.
2018-09-25 16:49:59 -04:00

64 lines
2 KiB
Haskell

{- git-remote-tor-annex program
-
- Copyright 2016 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module CmdLine.GitRemoteTorAnnex where
import Common
import qualified Annex
import qualified Git.CurrentRepo
import P2P.Protocol
import P2P.IO
import Utility.Tor
import Utility.AuthToken
import Annex.UUID
import P2P.Address
import P2P.Auth
run :: [String] -> IO ()
run (_remotename:address:[]) = forever $
getLine >>= \case
"capabilities" -> putStrLn "connect" >> ready
"connect git-upload-pack" -> go UploadPack
"connect git-receive-pack" -> go ReceivePack
l -> error $ "git-remote-helpers protocol error at " ++ show l
where
(onionaddress, onionport)
| '/' `elem` address = parseAddressPort $
reverse $ takeWhile (/= '/') $ reverse address
| otherwise = parseAddressPort address
go service = do
ready
connectService onionaddress onionport service >>= \case
Right exitcode -> exitWith exitcode
Left e -> giveup $ describeProtoFailure e
ready = do
putStrLn ""
hFlush stdout
run (_remotename:[]) = giveup "remote address not configured"
run _ = giveup "expected remote name and address parameters"
parseAddressPort :: String -> (OnionAddress, OnionPort)
parseAddressPort s =
let (a, sp) = separate (== ':') s
in case readish sp of
Nothing -> giveup "onion address must include port number"
Just p -> (OnionAddress a, p)
connectService :: OnionAddress -> OnionPort -> Service -> IO (Either ProtoFailure ExitCode)
connectService address port service = do
state <- Annex.new =<< Git.CurrentRepo.get
Annex.eval state $ do
authtoken <- fromMaybe nullAuthToken
<$> loadP2PRemoteAuthToken (TorAnnex address port)
myuuid <- getUUID
g <- Annex.gitRepo
conn <- liftIO $ connectPeer g (TorAnnex address port)
runst <- liftIO $ mkRunState Client
liftIO $ runNetProto runst conn $ auth myuuid authtoken noop >>= \case
Just _theiruuid -> connect service stdin stdout
Nothing -> giveup $ "authentication failed, perhaps you need to set " ++ p2pAuthTokenEnv