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{-# OPTIONS_GHC -fno-warn-orphans #-}
module Serialization where
import Types
import Raaz.Core.Encode
import qualified Data.ByteString as B
import qualified Data.ByteString.Char8 as B8
import Data.Monoid
import Data.Word
import Text.Read
-- TODO
-- | An EncryptedSecretKey is serialized as first a md5sum of the rest
-- of the content, and then a SelfDescription EncryptedSecretKey,
-- and finally the
--instance Encodable EncryptedSecretKey where
-- toByteString (EncryptedSecretKey b _) = b
-- fromByteString b =
-- | A KeyIdent is serialized in the form "keytype name".
-- For example "gpg Joey Hess"
instance Encodable KeyIdent where
toByteString (KeyIdent (KeyType t) (Name n)) =
t <> B.singleton identSepChar <> n
fromByteString b = case B.break (== identSepChar) b of
(t, n)
| B.null n -> Nothing
| otherwise -> Just $
KeyIdent (KeyType t) (Name (B.drop 1 n))
-- | An ObjectIdent is serialied in the form "shardnum keytype name"
-- For example "1 gpg Joey Hess"
instance Encodable ObjectIdent where
toByteString (ObjectIdent (ShardNum n) keyident) =
B8.pack (show n) <> B.singleton identSepChar <> toByteString keyident
fromByteString b = case B.break (== identSepChar) b of
(ns, rest)
| B.null ns -> Nothing
| otherwise -> do
keyident <- fromByteString (B.drop 1 rest)
n <- readMaybe (B8.unpack ns)
return $ ObjectIdent (ShardNum n) keyident
identSepChar :: Word8
identSepChar = 32
|
