83 lines
2.1 KiB
Haskell
83 lines
2.1 KiB
Haskell
module Propellor.PrivData where
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import qualified Data.Map as M
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import Control.Applicative
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import System.FilePath
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import System.IO
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import System.Directory
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import Data.Maybe
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import Control.Monad
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import Propellor.Types
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import Propellor.Engine
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import Utility.Monad
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import Utility.PartialPrelude
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import Utility.Exception
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import Utility.Process
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import Utility.Tmp
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import Utility.SafeCommand
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import Utility.Misc
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-- | Note that removing or changing field names will break the
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-- serialized privdata files, so don't do that!
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-- It's fine to add new fields.
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data PrivDataField
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= DockerAuthentication
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| SshPrivKey UserName
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| Password UserName
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deriving (Read, Show, Ord, Eq)
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withPrivData :: PrivDataField -> (String -> IO Result) -> IO Result
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withPrivData field a = maybe missing a =<< getPrivData field
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where
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missing = do
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warningMessage $ "Missing privdata " ++ show field
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return FailedChange
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getPrivData :: PrivDataField -> IO (Maybe String)
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getPrivData field = do
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m <- catchDefaultIO Nothing $ readish <$> readFile privDataLocal
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return $ maybe Nothing (M.lookup field) m
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setPrivData :: HostName -> PrivDataField -> IO ()
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setPrivData host field = do
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putStrLn "Enter private data on stdin; ctrl-D when done:"
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value <- hGetContentsStrict stdin
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makePrivDataDir
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let f = privDataFile host
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m <- fromMaybe M.empty . readish <$> gpgDecrypt f
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let m' = M.insert field value m
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gpgEncrypt f (show m')
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putStrLn "Private data set."
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void $ boolSystem "git" [Param "add", File f]
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makePrivDataDir :: IO ()
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makePrivDataDir = createDirectoryIfMissing False privDataDir
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privDataDir :: FilePath
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privDataDir = "privdata"
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privDataFile :: HostName -> FilePath
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privDataFile host = privDataDir </> host ++ ".gpg"
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privDataLocal :: FilePath
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privDataLocal = privDataDir </> "local"
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gpgDecrypt :: FilePath -> IO String
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gpgDecrypt f = ifM (doesFileExist f)
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( readProcess "gpg" ["--decrypt", f]
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, return ""
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)
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gpgEncrypt :: FilePath -> String -> IO ()
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gpgEncrypt f s = do
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encrypted <- writeReadProcessEnv "gpg"
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[ "--default-recipient-self"
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, "--armor"
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, "--encrypt"
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]
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Nothing
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(Just $ flip hPutStr s)
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Nothing
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viaTmp writeFile f encrypted
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