53 lines
1.6 KiB
Haskell
53 lines
1.6 KiB
Haskell
{- su to root
|
|
-
|
|
- Copyright 2016 Joey Hess <id@joeyh.name>
|
|
-
|
|
- License: BSD-2-clause
|
|
-}
|
|
|
|
module Utility.Su where
|
|
|
|
import Common
|
|
import Utility.Env
|
|
|
|
import System.Posix.Terminal
|
|
|
|
-- Runs a command as root, fairly portably.
|
|
--
|
|
-- Does not use sudo commands if something else is available, because
|
|
-- the user may not be in sudoers and we couldn't differentiate between
|
|
-- that and the command failing. Although, some commands like gksu
|
|
-- decide based on the system's configuration whether sudo should be used.
|
|
runAsRoot :: String -> [CommandParam] -> IO Bool
|
|
runAsRoot cmd ps = go =<< firstM (inPath . fst) =<< selectcmds
|
|
where
|
|
go Nothing = return False
|
|
go (Just (cmd', ps')) = boolSystem cmd' ps'
|
|
|
|
selectcmds = ifM (inx <||> (not <$> atconsole))
|
|
( return (graphicalcmds ++ consolecmds)
|
|
, return consolecmds
|
|
)
|
|
|
|
inx = isJust <$> getEnv "DISPLAY"
|
|
atconsole = queryTerminal stdInput
|
|
|
|
-- These will only work when the user is logged into a desktop.
|
|
graphicalcmds =
|
|
[ ("gksu", [Param shellcmd])
|
|
, ("kdesu", [Param shellcmd])
|
|
-- Available in Debian's menu package; knows about lots of
|
|
-- ways to gain root.
|
|
, ("su-to-root", [Param "-X", Param "-c", Param shellcmd])
|
|
-- OSX native way to run a command as root, prompts in GUI
|
|
, ("osascript", [Param "-e", Param ("do shell script \"" ++ shellcmd ++ "\" with administrator privileges")])
|
|
]
|
|
|
|
-- These will only work when run in a console.
|
|
consolecmds =
|
|
[ ("su", [Param "-c", Param shellcmd])
|
|
, ("sudo", [Param cmd] ++ ps)
|
|
, ("su-to-root", [Param "-c", Param shellcmd])
|
|
]
|
|
|
|
shellcmd = unwords $ map shellEscape (cmd:toCommand ps)
|