fix parser format inconsistencies

Hash2Pub/src/Hash2Pub/ASN1Coding.hs

@@ -20,6 +20,8 @@ import Hash2Pub.FediChord
 import Hash2Pub.Utils
 import Hash2Pub.DHTProtocol (QueryResponse (..))
 
+import Debug.Trace (trace)
+
 data Action =
     QueryID 
   | Join
@@ -270,6 +272,7 @@ encodeMessage
         IntVal parts
       , IntVal part ]
       ++ encodePayload requestPayload
+      ++ [End Sequence]
 encodeMessage
     (Response responseTo senderID parts part action responsePayload) = [
         Start Sequence
@@ -279,6 +282,7 @@ encodeMessage
       , IntVal part
       , Enumerated . fromIntegral . fromEnum $ action]
       ++ encodePayload responsePayload
+      ++ [End Sequence]
 
 -- ===== parser combinators =====
 
@@ -290,11 +294,19 @@ parseMessage = do
       x -> throwParseError $ "unexpected ASN.1 element " ++ show x
 -- request and response messages are distiguishable by their structure,
 -- see ASN.1 schema
-    first <- getNext
-    case first of
+    firstElem <- getNext
+    message <- case firstElem of
       Enumerated a -> parseRequest . toEnum . fromIntegral $ a
       IntVal i -> parseResponse i
       other -> throwParseError $ "unexpected first ASN1 element: " ++ show other
+    -- consume sequence end
+    end <- getNext
+    case end of
+      End Sequence -> return ()
+      x -> throwParseError $ "unexpected ASN.1 element " ++ show x
+    return message
+
+
 
 parseRequest :: Action -> ParseASN1 FediChordMessage
 parseRequest action = do
@@ -309,11 +321,6 @@ parseRequest action = do
             Leave -> parseLeaveRequest
             Stabilise -> parseStabiliseRequest
             Ping -> parsePingRequest
-    -- consume sequence end
-    end <- getNext
-    case end of
-      End Sequence -> return ()
-      x -> throwParseError $ "unexpected ASN.1 element " ++ show x
 
     return $ Request requestID sender parts part action payload
 
@@ -374,7 +381,7 @@ parseNull = do
         x -> throwParseError $ "Expected Null but got " ++ show x
 
 parseNodeState :: ParseASN1 NodeState
-parseNodeState = do
+parseNodeState = onNextContainer Sequence $ do
     nid' <- fromInteger <$> parseInteger
     domain' <- parseString
     ip' <- bsAsIpAddr <$> parseOctets
@@ -387,17 +394,19 @@ parseNodeState = do
       , dhtPort = dhtPort'
       , apPort = if apPort' == 0 then Nothing else Just apPort'
       , vServerID = vServer'
+      , ipAddr = ip'
+      , internals = Nothing
                      }
 
 
 parseCacheEntry :: ParseASN1 CacheEntry
-parseCacheEntry = do
+parseCacheEntry = onNextContainer Sequence $ do
     node <- parseNodeState
     timestamp <- toEnum . fromIntegral <$> parseInteger
     return $ NodeEntry False node timestamp
 
 parseNodeCache :: ParseASN1 [CacheEntry]
-parseNodeCache = getMany parseCacheEntry
+parseNodeCache = onNextContainer Sequence $ getMany parseCacheEntry
 
 parseJoinRequest :: ParseASN1 ActionPayload
 parseJoinRequest = do
@@ -430,6 +439,7 @@ parseQueryIDResponse = do
     result <- case resultType of
                   0 -> FOUND <$> parseNodeState
                   1 -> FORWARD . Set.fromList <$> parseNodeCache
+                  _ -> throwParseError "invalid QueryIDResponse type"
     return $ QueryIDResponsePayload {
         queryResult = result
                            }