module Propellor.PrivData where
import Control.Applicative
import System.IO
import System.Directory
import Data.Maybe
import Data.Monoid
import Data.List
import Control.Monad
import Control.Monad.IfElse
import "mtl" Control.Monad.Reader
import qualified Data.Map as M
import qualified Data.Set as S
import Propellor.Types
import Propellor.Types.PrivData
import Propellor.Message
import Propellor.Info
import Propellor.Gpg
import Propellor.PrivData.Paths
import Utility.Monad
import Utility.PartialPrelude
import Utility.Exception
import Utility.Tmp
import Utility.SafeCommand
import Utility.Misc
import Utility.FileMode
import Utility.Env
import Utility.Table
withPrivData
:: IsContext c
=> PrivDataField
-> c
-> (((PrivData -> Propellor Result) -> Propellor Result) -> Property)
-> Property
withPrivData field c mkprop = addinfo $ mkprop $ \a ->
maybe missing a =<< get
where
get = do
context <- mkHostContext hc <$> asks hostName
liftIO $ getLocalPrivData field context
missing = do
Context cname <- mkHostContext hc <$> asks hostName
warningMessage $ "Missing privdata " ++ show field ++ " (for " ++ cname ++ ")"
liftIO $ putStrLn $ "Fix this by running: propellor --set '" ++ show field ++ "' '" ++ cname ++ "'"
return FailedChange
addinfo p = p { propertyInfo = propertyInfo p <> mempty { _privDataFields = S.singleton (field, hc) } }
hc = asHostContext c
addPrivDataField :: (PrivDataField, HostContext) -> Property
addPrivDataField v = pureInfoProperty (show v) $
mempty { _privDataFields = S.singleton v }
getLocalPrivData :: PrivDataField -> Context -> IO (Maybe PrivData)
getLocalPrivData field context =
getPrivData field context . fromMaybe M.empty <$> localcache
where
localcache = catchDefaultIO Nothing $ readish <$> readFile privDataLocal
type PrivMap = M.Map (PrivDataField, Context) PrivData
filterPrivData :: Host -> PrivMap -> PrivMap
filterPrivData host = M.filterWithKey (\k _v -> S.member k used)
where
used = S.map (\(f, c) -> (f, mkHostContext c (hostName host))) $
_privDataFields $ hostInfo host
getPrivData :: PrivDataField -> Context -> PrivMap -> Maybe PrivData
getPrivData field context = M.lookup (field, context)
setPrivData :: PrivDataField -> Context -> IO ()
setPrivData field context = do
putStrLn "Enter private data on stdin; ctrl-D when done:"
setPrivDataTo field context =<< hGetContentsStrict stdin
dumpPrivData :: PrivDataField -> Context -> IO ()
dumpPrivData field context =
maybe (error "Requested privdata is not set.") putStrLn
=<< (getPrivData field context <$> decryptPrivData)
editPrivData :: PrivDataField -> Context -> IO ()
editPrivData field context = do
v <- getPrivData field context <$> decryptPrivData
v' <- withTmpFile "propellorXXXX" $ \f h -> do
hClose h
maybe noop (writeFileProtected f) v
editor <- getEnvDefault "EDITOR" "vi"
unlessM (boolSystem editor [File f]) $
error "Editor failed; aborting."
readFile f
setPrivDataTo field context v'
listPrivDataFields :: [Host] -> IO ()
listPrivDataFields hosts = do
m <- decryptPrivData
showtable "Currently set data:" $
map mkrow (M.keys m)
showtable "Data that would be used if set:" $
map mkrow (M.keys $ M.difference wantedmap m)
where
header = ["Field", "Context", "Used by"]
mkrow k@(field, (Context context)) =
[ shellEscape $ show field
, shellEscape context
, intercalate ", " $ sort $ fromMaybe [] $ M.lookup k usedby
]
mkhostmap host = M.fromList $ map (\(f, c) -> ((f, mkHostContext c (hostName host)), [hostName host])) $
S.toList $ _privDataFields $ hostInfo host
usedby = M.unionsWith (++) $ map mkhostmap hosts
wantedmap = M.fromList $ zip (M.keys usedby) (repeat "")
showtable desc rows = do
putStrLn $ "\n" ++ desc
putStr $ unlines $ formatTable $ tableWithHeader header rows
setPrivDataTo :: PrivDataField -> Context -> PrivData -> IO ()
setPrivDataTo field context value = do
makePrivDataDir
m <- decryptPrivData
let m' = M.insert (field, context) (chomp value) m
gpgEncrypt privDataFile (show m')
putStrLn "Private data set."
void $ boolSystem "git" [Param "add", File privDataFile]
where
chomp s
| end s == "\n" = chomp (beginning s)
| otherwise = s
decryptPrivData :: IO PrivMap
decryptPrivData = fromMaybe M.empty . readish <$> gpgDecrypt privDataFile
makePrivDataDir :: IO ()
makePrivDataDir = createDirectoryIfMissing False privDataDir