zcash-haskell/src/ZcashHaskell/Orchard.hs

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-- |
-- Module : ZcashHaskell.Orchard
-- Copyright : Vergara Technologies 2023
-- License : BOSL
--
-- Maintainer : rene@vergara.network
-- Stability : experimental
-- Portability : unknown
--
-- Functions to interact with the Orchard shielded pool of the Zcash blockchain.
--
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module ZcashHaskell.Orchard where
import C.Zcash
( rustWrapperIsUA
, rustWrapperOrchardNoteDecode
, rustWrapperUfvkDecode
)
import qualified Data.ByteString as BS
import Foreign.Rust.Marshall.Variable
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import ZcashHaskell.Types
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-- | Checks if given bytestring is a valid encoded unified address
isValidUnifiedAddress :: BS.ByteString -> Bool
isValidUnifiedAddress = rustWrapperIsUA
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-- | Attempts to decode the given bytestring into a Unified Full Viewing Key
decodeUfvk :: BS.ByteString -> Maybe UnifiedFullViewingKey
decodeUfvk str =
case net decodedKey of
0 -> Nothing
_ -> Just decodedKey
where
decodedKey = (withPureBorshVarBuffer . rustWrapperUfvkDecode) str
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-- | Attempts to decode the given @OrchardAction@ using the given @UnifiedFullViewingKey@.
decryptOrchardAction ::
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UnifiedFullViewingKey -> OrchardAction -> Maybe DecodedNote
decryptOrchardAction key encAction =
case a_value decodedAction of
0 -> Nothing
_ -> Just decodedAction
where
decodedAction =
withPureBorshVarBuffer $
rustWrapperOrchardNoteDecode (o_key key) encAction