SRV hack part 2

[pdns-pipe-nmc.git] / PowerDns.hs

diff --git a/PowerDns.hs b/PowerDns.hs
index 7ed76e8a24bc046dcb42a96382d932f20c4210cb..8962e94c9de37fe7f08e39f68c8607af0814317b 100644 (file)
--- a/PowerDns.hs
+++ b/PowerDns.hs
@@ -1,4 +1,11 @@
-module PowerDns where
+module PowerDns ( RRType(..)
+                , PdnsRequest(..)
+                , pdnsParse
+                , pdnsReport
+                , pdnsOut
+                ) where
+
+import NmcDom
 
 data RRType = RRTypeSRV   | RRTypeA   | RRTypeAAAA | RRTypeCNAME
             | RRTypeDNAME | RRTypeSOA | RRTypeRP   | RRTypeLOC
@@ -55,18 +62,57 @@ pdnsParse ver s =
                                             , localIpAddress = getLIp ver xs
                                             , ednsSubnetAddress = getRIp ver xs
                                             })
-      _                         -> Left s
+      _                         -> Left $ "Unparseable PDNS Request: " ++ s
+
+pdnsReport :: String -> String
+pdnsReport err =
+  "LOG\tError: " ++ err ++ "\nFAIL\n"
+
+pdnsOut :: Int -> String -> String -> RRType -> Either String NmcDom -> String
+pdnsOut ver id name rrtype edom =
+  case edom of
+    Left  err -> pdnsReport $ err ++ " in a query for " ++ name
+    Right dom -> foldr addLine "END\n" $ nmc2pdns name rrtype dom
+      where
+        addLine (nm, ty, dt) accum =
+          "DATA\t" ++ v3ext ++ nm ++ "\tIN\t" ++ ty ++ "\t" ++ ttl ++
+              "\t" ++ id ++ "\t" ++ dt ++ "\n" ++ accum
+        v3ext = case ver of
+          3 -> "0\t1\t"
+          _ -> ""
+        ttl = show 3600
+
+nmc2pdns :: String -> RRType -> NmcDom -> [(String, String, String)]
+nmc2pdns name RRTypeANY   dom =
+  foldr (\r accum -> (nmc2pdns name r dom) ++ accum) []
+    [RRTypeA, RRTypeAAAA, RRTypeCNAME, RRTypeDNAME, -- no SRV here!
+     RRTypeSOA, RRTypeRP, RRTypeLOC, RRTypeNS, RRTypeDS]
+nmc2pdns name RRTypeSRV   dom = [] -- FIXME
+nmc2pdns name RRTypeA     dom = mapto name "A" $ domIp dom
+nmc2pdns name RRTypeAAAA  dom = mapto name "AAAA" $ domIp6 dom
+nmc2pdns name RRTypeCNAME dom = takejust name "CNAME" $ domAlias dom
+nmc2pdns name RRTypeDNAME dom = takejust name "DNAME" $ domTranslate dom
+nmc2pdns name RRTypeSOA   dom = -- FIXME generate only for top domain
+  if dom == emptyNmcDom then []
+  else
+    let
+      email = case domEmail dom of
+        Nothing   -> "hostmaster." ++ name
+        Just addr ->
+          let (aname, adom) = break (== '@') addr
+          in case adom of
+            "" -> aname
+            _  -> aname ++ "." ++ (tail adom)
+    in [(name, "SOA", email ++ " 99999999 10800 3600 604800 86400")]
+nmc2pdns name RRTypeRP    dom = [] --FIXME
+nmc2pdns name RRTypeLOC   dom = takejust name "LOC" $ domLoc dom
+nmc2pdns name RRTypeNS    dom = mapto name "NS" $ domNs dom
+nmc2pdns name RRTypeDS    dom = [] --FIXME
+
+mapto name rrstr maybel = case maybel of
+  Nothing  -> []
+  Just l   -> map (\x -> (name, rrstr, x)) l
 
-{-
-pdnsOut :: String -> Either String PdnsRequest -> IO ()
-pdnsOut _   (Left e)   = putStrLn ("ERROR\tUnparseable request: " ++ e)
-pdnsOut uri (Right rq) = case rq of
-    PdnsRequestQ qn qt id lip rip eip -> do
-      dom <- queryNmc uri qn qt id
-      case dom of
-        Left  e      -> putStrLn ("ERROR\tNmc query error: " ++ e)
-        Right result -> print result
-    PdnsRequestAXFR xfrreq ->
-      putStrLn ("ERROR\t No support for AXFR " ++ xfrreq)
-    PdnsRequestPing -> putStrLn "OK"
--}
+takejust name rrstr maybestr = case maybestr of
+  Nothing  -> []
+  Just str -> [(name, rrstr, str)]