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Hash.purs
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Hash.purs
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module Node.Crypto.Hash
( Hash
, Algorithm(..)
, hex
, base64
, createHash
, update
, digest
) where
import Prelude
import Control.Monad.Eff (Eff)
import Node.Encoding (Encoding(UTF8, Hex, Base64))
import Node.Buffer (Buffer, BUFFER, fromString, toString)
import Node.Crypto (CRYPTO)
foreign import data Hash :: Type
data Algorithm
= MD5
| SHA512
instance showAlgorithm :: Show Algorithm where
show MD5 = "md5"
show SHA512 = "sha512"
hex :: forall e.
Algorithm ->
String ->
Eff (buffer :: BUFFER, crypto :: CRYPTO | e) String
hex alg str = hash alg str Hex
base64 :: forall e.
Algorithm ->
String ->
Eff (buffer :: BUFFER, crypto :: CRYPTO | e) String
base64 alg str = hash alg str Base64
hash :: forall e.
Algorithm ->
String ->
Encoding ->
Eff (buffer :: BUFFER, crypto :: CRYPTO | e) String
hash alg str enc = do
buf <- fromString str UTF8
createHash alg >>= flip update buf >>= digest >>= toString enc
createHash :: forall e. Algorithm -> Eff (crypto :: CRYPTO | e) Hash
createHash alg = _createHash $ show alg
foreign import _createHash :: forall e. String -> Eff (crypto :: CRYPTO | e) Hash
foreign import update :: forall e. Hash -> Buffer -> Eff (crypto :: CRYPTO | e) Hash
foreign import digest :: forall e. Hash -> Eff (crypto :: CRYPTO | e) Buffer