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authorGravatar Joey Hess <joey@kitenet.net>2013-04-16 13:49:39 -0400
committerGravatar Joey Hess <joey@kitenet.net>2013-04-16 13:49:39 -0400
commit79c9fa95bf4d2de5828db797884baf7ff447664d (patch)
tree4ba1144972ba2ad8ed83aaa8c4804498804ccd7b /Assistant/Ssh.hs
parent82ec4cf264d94e61545390bd30b4e40003abb43e (diff)
webapp: Include the repository directory in the mangled hostname and ssh key name, so that a locked down ssh key for one repository is not re-used when setting up additional repositories on the same server.
Diffstat (limited to 'Assistant/Ssh.hs')
-rw-r--r--Assistant/Ssh.hs25
1 files changed, 17 insertions, 8 deletions
diff --git a/Assistant/Ssh.hs b/Assistant/Ssh.hs
index 487f62c91..5312eaf77 100644
--- a/Assistant/Ssh.hs
+++ b/Assistant/Ssh.hs
@@ -210,18 +210,27 @@ setSshConfig sshdata config = do
, ("Port", show $ sshPort sshdata)
]
+{- This hostname is specific to a given repository on the ssh host,
+ - so it is based on the real hostname, the username, and the directory.
+ -}
mangleSshHostName :: SshData -> String
-mangleSshHostName sshdata = "git-annex-" ++ host ++ (maybe "-" ('-':) user)
+mangleSshHostName sshdata = "git-annex-" ++ T.unpack (sshHostName sshdata)
+ ++ "-" ++ filter safe extra
where
- host = T.unpack $ sshHostName sshdata
- user = T.unpack <$> sshUserName sshdata
+ extra = join "_" $ map T.unpack $ catMaybes
+ [ sshUserName sshdata
+ , Just $ sshDirectory sshdata
+ ]
+ safe c
+ | isAlphaNum c = True
+ | c == '_' = True
+ | otherwise = False
+{- Extracts the real hostname from a mangled ssh hostname. -}
unMangleSshHostName :: String -> String
-unMangleSshHostName h
- | "git-annex-" `isPrefixOf` h = join "-" (beginning $ drop 2 dashbits)
- | otherwise = h
- where
- dashbits = split "-" h
+unMangleSshHostName h = case split "-" h of
+ ("git":"annex":rest) -> join "-" (beginning rest)
+ _ -> h
{- Does ssh have known_hosts data for a hostname? -}
knownHost :: Text -> IO Bool