module Main where
---import Control.Applicative
+import Prelude hiding (lookup, 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 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.ConfigFile
-import Data.Either.Utils
+import Control.Monad.State
+import Data.ByteString.Lazy hiding (reverse, putStr, putStrLn, head, empty)
+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.Map.Lazy (Map, empty, lookup, insert, delete, size)
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"
--- Config file handling
-
-data Config = Config { rpcuser :: String
- , rpcpassword :: String
- , rpchost :: String
- , rpcport :: Int
- } deriving (Show)
-
-readConfig :: String -> IO Config
-readConfig f = do
- cp <- return . forceEither =<< readfile emptyCP f
- return (Config { rpcuser = getSetting cp "rpcuser" ""
- , rpcpassword = getSetting cp "rpcpassword" ""
- , rpchost = getSetting cp "rpchost" "localhost"
- , rpcport = getSetting cp "rpcport" 8336
- })
- where
- getSetting cp x dfl = case get cp "DEFAULT" x of
- Left _ -> dfl
- Right x -> x
-
-- HTTP/JsonRpc interface
-qReq :: Config -> ByteString -> ByteString -> Request m
+qReq :: Config -> String -> Int -> Request m
qReq cf q id = applyBasicAuth (C.pack (rpcuser cf)) (C.pack (rpcpassword cf))
$ def { host = (C.pack (rpchost cf))
, port = (rpcport cf)
, requestBody = RequestBodyLBS $ encode $
JsonRpcRequest JsonRpcV1
"name_show"
- [q]
- (String "pdns-nmc")
+ [L.pack q]
+ (String (T.pack (show 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
- -> IO (Either String NmcDom)
-queryNmc mgr cfg fqdn qtype qid = do
+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 -> do
- rsp <- runResourceT $
- httpLbs (qReq cfg (L.pack ("d/" ++ dn)) (L.pack qid)) mgr
- return $ qRsp rsp
- _ ->
- return $ Left "Only \".bit\" domain is supported"
+ "bit":dn:xs -> descendNmcDom queryOp xs $ seedNmcDom dn
+ _ -> return $ Left "Only \".bit\" domain is supported"
--- Main entry
+-- Main entries
-main = do
+mainPdnsNmc = do
cfg <- readConfig confFile
+ hSetBuffering stdin LineBuffering
+ hSetBuffering stdout LineBuffering
+
ver <- do
let
loopErr e = forever $ do
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)
+ let
+ fetch = lookup
+ -- Save the name under current count, increment count for the next run
+ -- so the name is saved under the count that was put into the response.
+ stow name (count, cache) =
+ (if count >= 99 then 0 else count + 1
+ , insert count name
+ $ delete (if count >= 10 then count - 10 else count + 90) cache
+ )
+ io = liftIO
+
+ mainloop = forever $ do
+ l <- io getLine
+ (count, cache) <- get
+ case pdnsParse ver l of
+ Left e -> io $ putStr $ pdnsReport e
+ Right preq -> do
+ case preq of
+ PdnsRequestQ qname qtype id _ _ _ -> do
+ io $ queryDom (queryOpNmc cfg mgr id) qname
+ >>= putStr . (pdnsOut ver count qname qtype)
+ -- debug
+ io $ putStrLn $ "LOG\tRequest number " ++ (show count)
+ ++ " id: " ++ (show id)
+ ++ " qname: " ++ qname
+ ++ " qtype: " ++ (show qtype)
+ ++ " cache size: " ++ (show (size cache))
+ -- end debug
+ put $ stow qname (count, cache)
+ PdnsRequestAXFR xrq ->
+ case fetch xrq cache of
+ Nothing ->
+ io $ putStr $
+ pdnsReport ("AXFR for unknown id: " ++ (show xrq))
+ Just qname ->
+ io $ queryDom (queryOpNmc cfg mgr xrq) qname
+ >>= putStr . (pdnsOutXfr ver count qname)
+ PdnsRequestPing -> io $ putStrLn "END"
+
+ runStateT mainloop (0, empty) >> return ()
+
+-- query by key from Namecoin
+
+mainOne key qt = do
+ cfg <- readConfig confFile
+ mgr <- newManager def
+ dom <- queryDom (queryOpNmc cfg mgr (-1)) key
+ putStrLn $ ppShow dom
+ putStr $ pdnsOut 1 (-1) key qt dom
+
+-- using file backend for testing json domain data
+
+mainFile key qt = do
+ dom <- queryDom queryOpFile key
+ putStrLn $ ppShow dom
+ putStr $ pdnsOut 1 (-1) key qt dom
+
+-- Entry point
+
+main = do
+ args <- getArgs
+ case args of
+ [] -> mainPdnsNmc
+ [key, qtype] -> mainOne key (rrType qtype)
+ ["-f" ,key, qtype] -> mainFile key (rrType qtype)
+ _ -> error $ "usage: empty args, or \"[-f] <fqdn> <QTYPE>\" (type in caps)"
projects / pdns-pipe-nmc.git / blobdiff