support some more RRs

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

diff --git a/pdns-pipe-nmc.hs b/pdns-pipe-nmc.hs
index 6e42ac2a033f95e2a37f416c590a23e5ce54470c..d047b4fbe00112617e9508174fd1b3896f7ae9ae 100644 (file)
--- a/pdns-pipe-nmc.hs
+++ b/pdns-pipe-nmc.hs
@@ -2,9 +2,14 @@
 
 module Main where
 
-import System.IO
+import Prelude hiding (readFile)
+import System.Environment
+import System.IO hiding (readFile)
+import System.IO.Error
+import Control.Exception
+import Text.Show.Pretty hiding (String)
 import Control.Monad
-import Data.ByteString.Lazy hiding (reverse, putStr, putStrLn)
+import Data.ByteString.Lazy hiding (reverse, putStr, putStrLn, head)
 import qualified Data.ByteString.Char8 as C (pack)
 import qualified Data.ByteString.Lazy.Char8 as L (pack)
 import qualified Data.Text as T (pack)
@@ -53,21 +58,20 @@ qRsp rsp =
 
 -- NMC interface
 
-queryNmc :: Manager -> Config -> String -> String
-         -> IO (Either String NmcDom)
-queryNmc mgr cfg qid fqdn =
+queryOpNmc cfg mgr qid key =
+  runResourceT (httpLbs (qReq cfg key qid) mgr) >>= return . qRsp
+
+queryOpFile key = catch (readFile key >>= return . Right)
+                        (\e -> return (Left (show (e :: IOException))))
+
+queryDom queryOp fqdn =
   case reverse (splitOn "." fqdn) of
     "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
 
--- Main entry
+-- Main entries
 
-main = do
+mainPdnsNmc = do
 
   cfg <- readConfig confFile
 
@@ -97,14 +101,34 @@ main = do
       Right preq -> do
         case preq of
           PdnsRequestQ qname qtype id _ _ _ ->
-            queryNmc mgr cfg id qname >>= putStr . (pdnsOut ver id qname qtype)
+            queryDom (queryOpNmc cfg mgr id) qname
+              >>= putStr . (pdnsOut ver id qname qtype)
           PdnsRequestAXFR xfrreq ->
             putStr $ pdnsReport ("No support for AXFR " ++ xfrreq)
           PdnsRequestPing -> putStrLn "END"
 
--- for testing
+-- query by key from Namecoin
 
-ask str = do
+mainOne key = do
   cfg <- readConfig confFile
   mgr <- newManager def
-  queryNmc mgr cfg "askid" str >>= putStr . (pdnsOut 1 "askid" str RRTypeANY)
+  dom <- queryDom (queryOpNmc cfg mgr "_") key
+  putStrLn $ ppShow dom
+  putStr $ pdnsOut 1 "_" key RRTypeANY dom
+
+-- using file backend for testing json domain data
+
+mainFile key = do
+  dom <- queryDom queryOpFile key
+  putStrLn $ ppShow dom
+  putStr $ pdnsOut 1 "+" key RRTypeANY dom
+
+-- Entry point
+
+main = do
+  args <- getArgs
+  case args of
+    []         -> mainPdnsNmc
+    [key]      -> mainOne key
+    ["-f",key] -> mainFile key
+    _ -> error $ "usage: empty args, or \"[-f] <fqdn>\""