handle "import"

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

diff --git a/pdns-pipe-nmc.hs b/pdns-pipe-nmc.hs
index d37491114a9adbc91091b26a95bd1ba4b86f60eb..6e42ac2a033f95e2a37f416c590a23e5ce54470c 100644 (file)
--- a/pdns-pipe-nmc.hs
+++ b/pdns-pipe-nmc.hs
@@ -2,26 +2,30 @@
 
 module Main where
 
+import System.IO
 import Control.Monad
-import qualified Data.ByteString.Char8 as C (pack, unpack)
-import qualified Data.ByteString.Lazy.Char8 as L (pack, unpack)
-import Data.ByteString.Lazy as BS hiding (reverse, putStrLn)
+import Data.ByteString.Lazy hiding (reverse, putStr, putStrLn)
+import qualified Data.ByteString.Char8 as C (pack)
+import qualified Data.ByteString.Lazy.Char8 as L (pack)
+import qualified Data.Text as T (pack)
 import Data.List.Split
 import Data.Aeson (encode, decode, Value(..))
 import Network.HTTP.Types
 import Data.Conduit
 import Network.HTTP.Conduit
-import Data.JsonRpcClient
 
+import JsonRpcClient
 import Config
 import PowerDns
-import NmcJson
+import NmcRpc
+import NmcDom
+import NmcTransform
 
 confFile = "/etc/namecoin.conf"
 
 -- HTTP/JsonRpc interface
 
-qReq :: Config -> ByteString -> ByteString -> Request m
+qReq :: Config -> String -> String -> Request m
 qReq cf q id = applyBasicAuth (C.pack (rpcuser cf)) (C.pack (rpcpassword cf))
              $ def { host           = (C.pack (rpchost cf))
                    , port           = (rpcport cf)
@@ -33,32 +37,33 @@ qReq cf q id = applyBasicAuth (C.pack (rpcuser cf)) (C.pack (rpcpassword cf))
                    , requestBody    = RequestBodyLBS $ encode $
                                       JsonRpcRequest JsonRpcV1
                                                      "name_show"
-                                                     [q]
-                                                     (String "pdns-nmc")
+                                                     [L.pack q]
+                                                     (String (T.pack id))
                    , checkStatus    = \_ _ _ -> Nothing
                    }
 
-qRsp :: Response ByteString -> Either String NmcDom
+qRsp :: Response ByteString -> Either String ByteString
 qRsp rsp =
     case parseJsonRpc (responseBody rsp) :: Either JsonRpcError NmcRes of
-      Left  jerr -> Left $ "Unparseable response: " ++ (show (responseBody rsp))
-      Right jrsp ->
-        case decode (resValue jrsp) :: Maybe NmcDom of
-          Nothing  -> Left $ "Unparseable value: " ++ (show (resValue jrsp))
-          Just dom -> Right dom
+      Left  jerr -> 
+        case (jrpcErrCode jerr) of
+          -4 -> Right "{}"      -- this is how non-existent entry is returned
+          _  -> Left $ "JsonRpc error response: " ++ (show jerr)
+      Right jrsp -> Right $ resValue jrsp
 
 -- NMC interface
 
-queryNmc :: Manager -> Config -> String -> RRType -> String
+queryNmc :: Manager -> Config -> String -> String
          -> IO (Either String NmcDom)
-queryNmc mgr cfg fqdn qtype qid = do
+queryNmc mgr cfg qid fqdn =
   case reverse (splitOn "." fqdn) of
-    "bit":dn:xs -> do
-      rsp <- runResourceT $
-             httpLbs (qReq cfg (L.pack ("d/" ++ dn)) (L.pack qid)) mgr
+    "bit":dn:xs -> descendNmcDom queryOp xs $ seedNmcDom dn
+    _           -> return $ Left "Only \".bit\" domain is supported"
+  where
+    queryOp key = do
+      rsp <- runResourceT $ httpLbs (qReq cfg key qid) mgr
+      -- print $ qRsp rsp
       return $ qRsp rsp
-    _           ->
-      return $ Left "Only \".bit\" domain is supported"
 
 -- Main entry
 
@@ -66,6 +71,8 @@ main = do
 
   cfg <- readConfig confFile
 
+  hSetBuffering stdin  LineBuffering
+  hSetBuffering stdout LineBuffering
   ver <- do
     let
       loopErr e = forever $ do
@@ -83,18 +90,21 @@ main = do
   putStrLn $ "OK\tDnsNmc ready to serve, protocol v." ++ (show ver)
 
   mgr <- newManager def
-
-  print $ qReq cfg "d/nosuchdomain" "query-nmc"
-  rsp <- runResourceT $ httpLbs (qReq cfg "d/nosuchdomain" "query-nmc") mgr
-  print $ (statusCode . responseStatus) rsp
-  putStrLn "===== complete response is:"
-  print rsp
-  let rbody = responseBody rsp
-  putStrLn "===== response body is:"
-  print rbody
-  let result = parseJsonRpc rbody :: Either JsonRpcError NmcRes
-  putStrLn "===== parsed response is:"
-  print result
---  print $ parseJsonRpc (responseBody rsp)
-
-  --forever $ getLine >>= (pdnsOut uri) . (pdnsParse ver)
+  forever $ do
+    l <- getLine
+    case pdnsParse ver l of
+      Left e -> putStr $ pdnsReport e
+      Right preq -> do
+        case preq of
+          PdnsRequestQ qname qtype id _ _ _ ->
+            queryNmc mgr cfg id qname >>= putStr . (pdnsOut ver id qname qtype)
+          PdnsRequestAXFR xfrreq ->
+            putStr $ pdnsReport ("No support for AXFR " ++ xfrreq)
+          PdnsRequestPing -> putStrLn "END"
+
+-- for testing
+
+ask str = do
+  cfg <- readConfig confFile
+  mgr <- newManager def
+  queryNmc mgr cfg "askid" str >>= putStr . (pdnsOut 1 "askid" str RRTypeANY)