X-Git-Url: http://www.average.org/gitweb/?p=pdns-pipe-nmc.git;a=blobdiff_plain;f=pdns-pipe-nmc.hs;h=5fc64fa1c940c96bff85b47f80ec7bc65943b307;hp=f638851f3192dc751b5fbccad581cdf911e45767;hb=2c78be5966c84f6791127d7f800937cde70278d2;hpb=ac3600bf0b71ef29110e644f79812a117a9480b2

diff --git a/pdns-pipe-nmc.hs b/pdns-pipe-nmc.hs
index f638851..5fc64fa 100644
--- a/pdns-pipe-nmc.hs
+++ b/pdns-pipe-nmc.hs
@@ -4,8 +4,10 @@ module Main where
 
 import Prelude hiding (lookup, readFile)
 import System.Environment
+import System.Console.GetOpt
 import System.IO hiding (readFile)
 import System.IO.Error
+import Data.Time.Clock.POSIX
 import Control.Exception
 import Text.Show.Pretty hiding (String)
 import Control.Monad
@@ -19,7 +21,9 @@ import Data.Map.Lazy (Map, empty, lookup, insert, delete, size)
 import Data.Aeson (encode, decode, Value(..))
 import Network.HTTP.Types
 import Network.HTTP.Client
-import Data.Default (def)
+import Data.Default.Class (def)
+-- if you have data-default-0.5.1 import this instead of Data.Default.Class:
+-- import Data.Default (def)
 
 import JsonRpcClient
 import Config
@@ -71,7 +75,13 @@ queryDom queryOp fqdn =
     "bit":dn:xs -> descendNmcDom queryOp xs $ seedNmcDom dn
     _           -> return $ Left "Only \".bit\" domain is supported"
 
--- Main entries
+-- Number of ten minute intervals elapsed since creation of Namecoin
+-- on April 18, 2011. Another option would be to use blockcount
+-- but that would require another lookup, and we are cheap.
+-- Yet another - to use (const - expires_in) from the lookup.
+nmcAge = fmap (\x -> floor ((x - 1303070400) / 600)) getPOSIXTime
+
+-- run a PowerDNS coprocess. Negotiate ABI version and execute requests.
 
 mainPdnsNmc = do
 
@@ -111,6 +121,7 @@ mainPdnsNmc = do
 
     mainloop = forever $ do
       l <- io getLine
+      gen <- io $ nmcAge
       (count, cache) <- get
       case pdnsParse ver l of
         Left e -> io $ putStr $ pdnsReport e
@@ -118,7 +129,8 @@ mainPdnsNmc = do
           case preq of
             PdnsRequestQ qname qtype id _ _ _ -> do
               io $ queryDom (queryOpNmc cfg mgr id) qname
-                     >>= putStr . (pdnsOutQ ver count qname qtype)
+                     >>= putStr . (pdnsOutQ ver count gen qname qtype)
+  {-
   -- debug
               io $ putStrLn $ "LOG\tRequest number " ++ (show count)
                            ++ " id: " ++ (show id)
@@ -126,6 +138,7 @@ mainPdnsNmc = do
                            ++ " qtype: " ++ (show qtype)
                            ++ " cache size: " ++ (show (size cache))
   -- end debug
+  -}
               put $ stow qname (count, cache)
             PdnsRequestAXFR xrq ->
               case fetch xrq cache of
@@ -134,40 +147,45 @@ mainPdnsNmc = do
                     pdnsReport ("AXFR for unknown id: " ++ (show xrq))
                 Just qname ->
                   io $ queryDom (queryOpNmc cfg mgr xrq) qname
-                    >>= putStr . (pdnsOutXfr ver count qname)
+                    >>= putStr . (pdnsOutXfr ver count gen qname)
             PdnsRequestPing -> io $ putStrLn "END"
 
   runStateT mainloop (0, empty) >> return ()
 
 -- helper for command-line tools
 
-pdnsOut key qt dom =
+pdnsOut gen key qt dom =
   case qt of
-    "AXFR" -> pdnsOutXfr 1 (-1) key dom
-    _      -> pdnsOutQ 1 (-1) key (rrType qt) dom
+    "AXFR" -> pdnsOutXfr 1 (-1) gen key dom
+    _      -> pdnsOutQ 1 (-1) gen key (rrType qt) dom
 
--- query by key from Namecoin
+-- run one query by key from Namecoin, print domain object and answer
 
-mainOne key qt = do
+mainOne gen key qt = do
   cfg <- readConfig confFile
   mgr <- newManager defaultManagerSettings
   dom <- queryDom (queryOpNmc cfg mgr (-1)) key
   putStrLn $ ppShow dom
-  putStr $ pdnsOut key qt dom
+  putStr $ pdnsOut gen key qt dom
 
--- using file backend for testing json domain data
+-- get data from the file, print domain object and answer
 
-mainFile key qt = do
+mainFile gen key qt = do
   dom <- queryDom queryOpFile key
   putStrLn $ ppShow dom
-  putStr $ pdnsOut key qt dom
+  putStr $ pdnsOut gen key qt dom
 
 -- Entry point
 
 main = do
   args <- getArgs
+  gen <- nmcAge
+  let
+    with f xs = case xs of
+      [qfqdn, qtype]       -> f gen qfqdn qtype
+      _ -> error $ "usage: empty args, or \"[-f] <fqdn> {<TYPE>|ANY|AXFR}\""
+                ++ " (type in caps)"
   case args of
-    []                 -> mainPdnsNmc
-    [key, qtype]       -> mainOne key qtype
-    ["-f" ,key, qtype] -> mainFile key qtype
-    _ -> error $ "usage: empty args, or \"[-f] <fqdn> {<TYPE>|ANY|AXFR}\" (type in caps)"
+    []      -> mainPdnsNmc
+    "-f":xs -> with mainFile xs
+    _       -> with mainOne args