jose-jwt-0.7: Jose/Internal/Base64.hs

{-# LANGUAGE OverloadedStrings, FlexibleContexts #-}
{-# OPTIONS_HADDOCK hide #-}

-- | JWT-style base64 encoding and decoding

module Jose.Internal.Base64 where

import Control.Monad.Error
import Data.ByteArray
import Data.ByteArray.Encoding

import Jose.Types

-- | Base64 URL encode without padding.
encode :: (ByteArrayAccess input, ByteArray output) => input -> output
encode = convertToBase Base64URLUnpadded

-- | Base64 decode.
decode :: (ByteArrayAccess input, ByteArray output, MonadError JwtError m) => input -> m output
decode bs = either (throwError . Base64Error) return $ convertFromBase Base64URLUnpadded bs