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authorJoey Hess2014-03-31 14:06:20 -0400
committerJoey Hess2014-03-31 14:06:20 -0400
commit6269b08863cdac6ddf023ca409c3131cbe5bc5e3 (patch)
treeb0ba5c9438b9138171e92af32cb18759c2e638fc /Utility
parent44c76f760e98f377273d18f89107f8100c3a013c (diff)
propellor spin
Diffstat (limited to 'Utility')
-rw-r--r--Utility/Base64.hs24
1 files changed, 24 insertions, 0 deletions
diff --git a/Utility/Base64.hs b/Utility/Base64.hs
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+{- Simple Base64 access
+ -
+ - Copyright 2011 Joey Hess <joey@kitenet.net>
+ -
+ - Licensed under the GNU GPL version 3 or higher.
+ -}
+
+module Utility.Base64 (toB64, fromB64Maybe, fromB64) where
+
+import "dataenc" Codec.Binary.Base64
+import Data.Bits.Utils
+import Control.Applicative
+import Data.Maybe
+
+toB64 :: String -> String
+toB64 = encode . s2w8
+
+fromB64Maybe :: String -> Maybe String
+fromB64Maybe s = w82s <$> decode s
+
+fromB64 :: String -> String
+fromB64 = fromMaybe bad . fromB64Maybe
+ where
+ bad = error "bad base64 encoded data"