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l 3 usershadow: update passwd to behave correctly

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This commit is contained in:
lassulus 2016-11-25 00:07:55 +01:00
parent ab684bf6d8
commit 2ea9b739ac
1 changed files with 20 additions and 9 deletions
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29
lass/3modules/usershadow.nix
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@ -70,9 +70,7 @@
extra-depends = deps;
text = ''
import Data.Monoid
import System.IO
import Data.Char (chr)
import System.Environment (getEnv, getArgs)
import System.Environment (getArgs)
import Crypto.PasswordStore (verifyPasswordWith, pbkdf2)
import qualified Data.ByteString.Char8 as BS8
import System.Exit (exitFailure, exitSuccess)
@ -96,16 +94,29 @@
import System.Environment (getEnv)
import Crypto.PasswordStore (makePasswordWith, pbkdf2)
import qualified Data.ByteString.Char8 as BS8
import System.IO (stdin, hSetEcho, putStrLn)
import System.IO (stdin, stdout, hSetEcho, hFlush, putStr, putStrLn)
import Control.Exception (bracket_)
main :: IO ()
main = do
home <- getEnv "HOME"
putStrLn "password:"
hSetEcho stdin False
password <- BS8.hGetLine stdin
hash <- makePasswordWith pbkdf2 password 10
BS8.writeFile (home ++ "/.shadow") hash
mb_password <- bracket_ (hSetEcho stdin False) (hSetEcho stdin True) $ do
putStr "Enter new UNIX password: "
hFlush stdout
password <- BS8.hGetLine stdin
putStrLn ""
putStr "Retype new UNIX password: "
hFlush stdout
password2 <- BS8.hGetLine stdin
return $ if password == password2
then Just password
else Nothing
case mb_password of
Just password -> do
hash <- makePasswordWith pbkdf2 password 10
BS8.writeFile (home ++ "/.shadow") hash
putStrLn "passwd: all authentication tokens updated successfully."
Nothing -> putStrLn "Sorry, passwords do not match"
'';
};
};