import Prelude hiding (lookup)
import Data.ByteString.Lazy (ByteString)
-import Data.Text.Lazy (splitOn, pack, unpack)
import Data.Map.Lazy (empty, lookup, delete, size, singleton
, foldrWithKey, insert, insertWith)
import Control.Monad (foldM)
-> IO (Either String NmcDom) -- ^ result with merged import
mergeIncl queryOp depth base = do
let
- mbase = (expandSrv . splitSubdoms . mergeSelf) base
+ mbase = mergeSelf base
base' = mbase {domDelegate = Nothing, domImport = Nothing}
-- print base
if depth <= 0 then return $ Left "Nesting of imports is too deep"
sub <- queryNmcDom queryOp key
case sub of
Left err -> return $ Left err
- Right sub' -> mergeIncl queryOp (depth - 1) $ sub' `mergeNmcDom` acc
+ Right sub' -> mergeIncl queryOp (depth - 1) $ sub' `merge` acc
-- | If there is an element in the map with key "", merge the contents
-- and remove this element. Do this recursively.
mergeSelf :: NmcDom -> NmcDom
mergeSelf base =
let
- map = domMap base
- base' = base {domMap = removeSelf map}
+ map = domSubmap base
+ base' = base {domSubmap = removeSelf map}
removeSelf Nothing = Nothing
removeSelf (Just map) = if size map' == 0 then Nothing else Just map'
where map' = delete "" map
Just map' ->
case lookup "" map' of
Nothing -> base'
- Just sub -> (mergeSelf sub) `mergeNmcDom` base'
+ Just sub -> (mergeSelf sub) `merge` base'
-- recursion depth limited by the size of the record
--- | replace Service with Srv down in the Map
-expandSrv :: NmcDom -> NmcDom
-expandSrv base =
- let
- base' = base { domService = Nothing }
- in
- case domService base of
- Nothing -> base'
- Just sl -> foldr addSrvMx base' sl
- where
- addSrvMx sr acc = sub1 `mergeNmcDom` acc
- where
- sub1 = def { domMap = Just (singleton proto sub2)
- , domMx = maybemx}
- sub2 = def { domMap = Just (singleton srvid sub3) }
- sub3 = def { domSrv = Just [srvStr] }
- proto = "_" ++ (srvProto sr)
- srvid = "_" ++ (srvName sr)
- srvStr = (show (srvPrio sr)) ++ "\t"
- ++ (show (srvWeight sr)) ++ " "
- ++ (show (srvPort sr)) ++ " "
- ++ (srvHost sr)
- maybemx =
- if srvName sr == "smtp"
- && srvProto sr == "tcp"
- && srvPort sr == 25
- then Just [(show (srvPrio sr)) ++ "\t" ++ (srvHost sr)]
- else Nothing
-{-
--- | replace Tls with Tlsa down in the Map
--- This function is almost, but not quite, entirely unlike expandSrv.
-expandTls :: NmcDom -> NmcDom
-expandTls base =
- let
- base' = base { domTls = Nothing }
- in
- case domTls base of
- Nothing -> base'
- Just sl -> foldr addTlsa base' sl
- where
- addTlsa sr acc = sub1 `mergeNmcDom` acc
- where
- sub1 = def { domMap = Just (singleton proto sub2) }
- sub2 = def { domMap = Just (singleton port sub3) }
- sub3 = def { domTlsa = Just [tlsStr] }
- proto = "_" ++ (tlsProto sr)
- port = "_" ++ (tlsName sr)
- tlsStr = (show (tlsPrio sr)) ++ "\t"
- ++ (show (tlsWeight sr)) ++ " "
- ++ (show (tlsPort sr)) ++ " "
- ++ (tlsHost sr)
--}
-
--- | Convert map elements of the form "subN...sub2.sub1.dom.bit"
--- into nested map and merge it
-splitSubdoms :: NmcDom -> NmcDom
-splitSubdoms base =
- let
- base' = base { domMap = Nothing }
- in
- case domMap base of
- Nothing -> base'
- Just sdmap -> (def { domMap = Just sdmap' }) `mergeNmcDom` base'
- where
- sdmap' = foldrWithKey stow empty sdmap
- stow fqdn sdom acc = insertWith mergeNmcDom fqdn' sdom' acc
- where
- (fqdn', sdom') =
- nest (filter (/= "") (splitOnDots fqdn), sdom)
- splitOnDots s = map unpack (splitOn (pack ".") (pack s))
- nest ([], v) = (fqdn, v) -- can split result be empty?
- nest ([k], v) = (k, v)
- nest (k:ks, v) =
- nest (ks, def { domMap = Just (singleton k v) })
-
-- | transfer some elements of `base` into `sub`, notably TLSA
propagate :: NmcDom -> NmcDom -> NmcDom
-propagate base sub = sub -- FIXME implement it
+propagate base sub = sub `merge` (pickglobals base)
+ where -- FIXME must do this on the map elements, not on the top level
+ pickglobals dom = def { domTlsa = fmap pickforcedtls (domTlsa dom) }
+ pickforcedtls = filter (\x -> tlsIncSubdoms x)
-- | Presence of some elements require removal of some others
normalizeDom :: NmcDom -> NmcDom
Just ns -> def { domNs = domNs dom, domEmail = domEmail dom }
translateNormalizer dom = case domTranslate dom of
Nothing -> dom
- Just tr -> dom { domMap = Nothing }
+ Just tr -> dom { domSubmap = Nothing }
-- | Merge imports and Selfs and follow the maps tree to get dom
descendNmcDom ::
case base' of
Left err -> return base'
Right base'' ->
- case domMap base'' of
+ case domSubmap base'' of
Nothing -> return $ Right def
Just map ->
case lookup d map of