Serlialize instance for PeerInfo.

1 files changed, 26 insertions, 0 deletions

diff --git a/src/Network/Tox/Crypto/Transport.hs b/src/Network/Tox/Crypto/Transport.hs
index 09c492ef..20b0abae 100644
--- a/src/Network/Tox/Crypto/Transport.hs
+++ b/src/Network/Tox/Crypto/Transport.hs
@@ -141,6 +141,7 @@ instance Sized CryptoMessage where
         TwoByte {}              -> 2
         UpToN { msgBytes = bs } -> 1 + B.length bs
 
+erCompat :: String -> a
 erCompat lens = error $ "Use of '" ++ lens ++ "'  lens on incompatible CryptoMessage type"
 
 typingStatus :: Functor f => (UserStatus -> f UserStatus)-> (CryptoMessage -> f CryptoMessage)
@@ -198,9 +199,11 @@ class HasGroupChatID x where
     getGroupChatID :: x -> GroupChatId
     setGroupChatID :: x -> GroupChatId -> x
 
+sizedN :: Int -> ByteString -> ByteString
 sizedN n bs = if B.length bs < n then B.append bs (B.replicate (n - B.length bs) 0)
                                  else B.take n bs
 
+sizedAtLeastN :: Int -> ByteString -> ByteString
 sizedAtLeastN n bs = if B.length bs < n then B.append bs (B.replicate (n - B.length bs) 0)
                                         else bs
 
@@ -372,17 +375,40 @@ data PeerInfo
          , piName  :: ByteString -- byte-prefix for length
          } deriving (Eq,Show)
 
+instance Serialize PeerInfo where
+    get = do
+        w16 <- get
+        ukey <- id2key <$> get
+        dkey <- id2key <$> get
+        w8 <- get :: Get Word8
+        PeerInfo w16 ukey dkey <$> getBytes (fromIntegral w8)
+
+    put (PeerInfo w16 ukey dkey bs) = do
+        put w16
+        put $ key2id ukey
+        put $ key2id dkey
+        let sz :: Word8
+            sz = case B.length bs of
+                    n | n <= 255  -> fromIntegral n
+                      | otherwise -> 255
+        put sz
+        putByteString $ B.take (fromIntegral sz) bs
+
 
 -- |
 -- default constructor, handy for formations such as:
 --
 -- > userStatus .~ Busy $ msg USERSTATUS
 --
+msg :: MessageID -> CryptoMessage
 msg mid | Just (True,0) <- msgSizeParam mid  = OneByte mid
 msg mid | Just (True,1) <- msgSizeParam mid  = TwoByte mid 0
 msg mid | Just (False,_) <- msgSizeParam mid = UpToN   mid B.empty
 
+leaveMsg :: Serialize a => a -> CryptoMessage
 leaveMsg     groupnum = UpToN DIRECT_GROUPCHAT (B.snoc (S.encode groupnum) 0x01)
+
+peerQueryMsg :: Serialize a => a -> CryptoMessage
 peerQueryMsg groupnum = UpToN DIRECT_GROUPCHAT (B.snoc (S.encode groupnum) 0x08)