module Propellor.PrivData (
withPrivData,
withSomePrivData,
addPrivData,
setPrivData,
unsetPrivData,
unsetPrivDataUnused,
dumpPrivData,
editPrivData,
filterPrivData,
listPrivDataFields,
makePrivDataDir,
decryptPrivData,
readPrivData,
readPrivDataFile,
PrivMap,
PrivInfo,
forceHostContext,
) where
import System.IO
import Data.Maybe
import Data.List
import Data.Typeable
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 qualified Data.ByteString.Lazy as L
import Control.Applicative
import Data.Monoid
import Prelude
import Propellor.Types
import Propellor.Types.PrivData
import Propellor.Types.MetaTypes
import Propellor.Types.Info
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.Process.NonConcurrent
import Utility.Misc
import Utility.FileMode
import Utility.Env
import Utility.Table
import Utility.Directory
withPrivData
::
( IsContext c
, IsPrivDataSource s
, IncludesInfo metatypes ~ 'True
)
=> s
-> c
-> (((PrivData -> Propellor Result) -> Propellor Result) -> Property metatypes)
-> Property metatypes
withPrivData s = withPrivData' snd [s]
withSomePrivData
::
( IsContext c
, IsPrivDataSource s
, IncludesInfo metatypes ~ 'True
)
=> [s]
-> c
-> ((((PrivDataField, PrivData) -> Propellor Result) -> Propellor Result) -> Property metatypes)
-> Property metatypes
withSomePrivData = withPrivData' id
withPrivData'
::
( IsContext c
, IsPrivDataSource s
, IncludesInfo metatypes ~ 'True
)
=> ((PrivDataField, PrivData) -> v)
-> [s]
-> c
-> (((v -> Propellor Result) -> Propellor Result) -> Property metatypes)
-> Property metatypes
withPrivData' feed srclist c mkprop = addinfo $ mkprop $ \a ->
maybe missing (a . feed) =<< getM get fieldlist
where
get field = do
context <- mkHostContext hc <$> asks hostName
maybe Nothing (\privdata -> Just (field, privdata))
<$> liftIO (getLocalPrivData field context)
missing = do
Context cname <- mkHostContext hc <$> asks hostName
warningMessage $ "Missing privdata " ++ intercalate " or " fieldnames ++ " (for " ++ cname ++ ")"
infoMessage $
"Fix this by running:" :
showSet (map (\s -> (privDataField s, Context cname, describePrivDataSource s)) srclist)
return FailedChange
addinfo p = p `addInfoProperty` (toInfo privset)
privset = PrivInfo $ S.fromList $
map (\s -> (privDataField s, describePrivDataSource s, hc)) srclist
fieldnames = map show fieldlist
fieldlist = map privDataField srclist
hc = asHostContext c
showSet :: [(PrivDataField, Context, Maybe PrivDataSourceDesc)] -> [String]
showSet = concatMap go
where
go (f, Context c, md) = catMaybes
[ Just $ " propellor --set '" ++ show f ++ "' '" ++ c ++ "' \\"
, maybe Nothing (\d -> Just $ " " ++ d) md
, Just ""
]
addPrivData :: (PrivDataField, Maybe PrivDataSourceDesc, HostContext) -> Property (HasInfo + UnixLike)
addPrivData v = pureInfoProperty (show v) (PrivInfo (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) String
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))) $
fromPrivInfo $ fromInfo $ hostInfo host
getPrivData :: PrivDataField -> Context -> PrivMap -> Maybe PrivData
getPrivData field context m = do
s <- M.lookup (field, context) m
return (PrivData s)
setPrivData :: PrivDataField -> Context -> IO ()
setPrivData field context = do
putStrLn "Enter private data on stdin; ctrl-D when done:"
setPrivDataTo field context . PrivData =<< hGetContentsStrict stdin
unsetPrivData :: PrivDataField -> Context -> IO ()
unsetPrivData field context = do
modifyPrivData $ M.delete (field, context)
descUnset field context
descUnset :: PrivDataField -> Context -> IO ()
descUnset field context =
putStrLn $ "Private data unset: " ++ show field ++ " " ++ show context
unsetPrivDataUnused :: [Host] -> IO ()
unsetPrivDataUnused hosts = do
deleted <- modifyPrivData' $ \m ->
let (keep, del) = M.partitionWithKey (\k _ -> k `M.member` usedby) m
in (keep, M.keys del)
mapM_ (uncurry descUnset) deleted
where
usedby = mkUsedByMap hosts
dumpPrivData :: PrivDataField -> Context -> IO ()
dumpPrivData field context = do
maybe (error "Requested privdata is not set.")
(L.hPut stdout . privDataByteString)
=<< (getPrivData field context <$> decryptPrivData)
editPrivData :: PrivDataField -> Context -> IO ()
editPrivData field context = do
v <- getPrivData field context <$> decryptPrivData
v' <- withTmpFile "propellorXXXX" $ \f th -> do
hClose th
maybe noop (\p -> writeFileProtected' f (`L.hPut` privDataByteString p)) v
editor <- getEnvDefault "EDITOR" "vi"
unlessM (boolSystemNonConcurrent editor [File f]) $
error "Editor failed; aborting."
PrivData <$> readFile f
setPrivDataTo field context v'
listPrivDataFields :: [Host] -> IO ()
listPrivDataFields hosts = do
m <- decryptPrivData
section "Currently set data:"
showtable $ map mkrow (M.keys m)
let missing = M.keys $ M.difference wantedmap m
unless (null missing) $ do
section "Missing data that would be used if set:"
showtable $ map mkrow missing
section "How to set missing data:"
mapM_ putStrLn $ showSet $
map (\(f, c) -> (f, c, join $ M.lookup (f, c) descmap)) missing
where
header = ["Field", "Context", "Used by"]
mkrow k@(field, Context context) =
[ shellEscape $ show field
, shellEscape context
, intercalate ", " $ sort $ fromMaybe [] $ M.lookup k usedby
]
usedby = mkUsedByMap hosts
wantedmap = M.fromList $ zip (M.keys usedby) (repeat "")
descmap = M.unions $ map (`mkPrivDataMap` id) hosts
section desc = putStrLn $ "\n" ++ desc
showtable rows = do
putStr $ unlines $ formatTable $ tableWithHeader header rows
mkUsedByMap :: [Host] -> M.Map (PrivDataField, Context) [HostName]
mkUsedByMap = M.unionsWith (++) . map (\h -> mkPrivDataMap h $ const [hostName h])
mkPrivDataMap :: Host -> (Maybe PrivDataSourceDesc -> a) -> M.Map (PrivDataField, Context) a
mkPrivDataMap host mkv = M.fromList $
map (\(f, d, c) -> ((f, mkHostContext c (hostName host)), mkv d))
(S.toList $ fromPrivInfo $ fromInfo $ hostInfo host)
setPrivDataTo :: PrivDataField -> Context -> PrivData -> IO ()
setPrivDataTo field context (PrivData value) = do
modifyPrivData set
putStrLn "Private data set."
where
set = M.insert (field, context) value
modifyPrivData :: (PrivMap -> PrivMap) -> IO ()
modifyPrivData f = modifyPrivData' (\m -> (f m, ()))
modifyPrivData' :: (PrivMap -> (PrivMap, a)) -> IO a
modifyPrivData' f = do
makePrivDataDir
m <- decryptPrivData
let (m', r) = f m
privdata <- privDataFile
gpgEncrypt privdata (show m')
void $ boolSystem "git" [Param "add", File privdata]
return r
decryptPrivData :: IO PrivMap
decryptPrivData = readPrivData <$> (gpgDecrypt =<< privDataFile)
readPrivData :: String -> PrivMap
readPrivData = fromMaybe M.empty . readish
readPrivDataFile :: FilePath -> IO PrivMap
readPrivDataFile f = readPrivData <$> readFileStrict f
makePrivDataDir :: IO ()
makePrivDataDir = createDirectoryIfMissing False privDataDir
newtype PrivInfo = PrivInfo
{ fromPrivInfo :: S.Set (PrivDataField, Maybe PrivDataSourceDesc, HostContext) }
deriving (Eq, Ord, Show, Typeable, Monoid)
instance IsInfo PrivInfo where
propagateInfo _ = PropagatePrivData
forceHostContext :: String -> PrivInfo -> PrivInfo
forceHostContext name i = PrivInfo $ S.map go (fromPrivInfo i)
where
go (f, d, HostContext ctx) = (f, d, HostContext (const $ ctx name))