{-# LANGUAGE LambdaCase #-}
module Language.Bitcoin.Script.Descriptors.Syntax (
OutputDescriptor (..),
ScriptDescriptor (..),
KeyDescriptor (..),
isDefinite,
keyAtIndex,
keyDescPubKey,
keyBytes,
Origin (..),
Key (..),
KeyCollection (..),
pubKey,
secKey,
) where
import Data.ByteString (ByteString)
import Data.Word (Word32)
import Haskoin (
Address,
DerivPath,
DerivPathI ((:/), (:|)),
Fingerprint,
PubKeyI (..),
SecKeyI,
XPubKey (xPubKey),
derivePubKeyI,
derivePubPath,
exportPubKey,
toSoft,
)
data OutputDescriptor
=
ScriptPubKey ScriptDescriptor
|
P2SH ScriptDescriptor
|
P2WPKH KeyDescriptor
|
P2WSH ScriptDescriptor
|
WrappedWPkh KeyDescriptor
|
WrappedWSh ScriptDescriptor
|
Combo KeyDescriptor
|
Addr Address
deriving (OutputDescriptor -> OutputDescriptor -> Bool
(OutputDescriptor -> OutputDescriptor -> Bool)
-> (OutputDescriptor -> OutputDescriptor -> Bool)
-> Eq OutputDescriptor
forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
/= :: OutputDescriptor -> OutputDescriptor -> Bool
$c/= :: OutputDescriptor -> OutputDescriptor -> Bool
== :: OutputDescriptor -> OutputDescriptor -> Bool
$c== :: OutputDescriptor -> OutputDescriptor -> Bool
Eq, Int -> OutputDescriptor -> ShowS
[OutputDescriptor] -> ShowS
OutputDescriptor -> String
(Int -> OutputDescriptor -> ShowS)
-> (OutputDescriptor -> String)
-> ([OutputDescriptor] -> ShowS)
-> Show OutputDescriptor
forall a.
(Int -> a -> ShowS) -> (a -> String) -> ([a] -> ShowS) -> Show a
showList :: [OutputDescriptor] -> ShowS
$cshowList :: [OutputDescriptor] -> ShowS
show :: OutputDescriptor -> String
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showsPrec :: Int -> OutputDescriptor -> ShowS
$cshowsPrec :: Int -> OutputDescriptor -> ShowS
Show)
data ScriptDescriptor
=
Pk KeyDescriptor
|
Pkh KeyDescriptor
|
Multi Int [KeyDescriptor]
|
SortedMulti Int [KeyDescriptor]
|
Raw ByteString
deriving (ScriptDescriptor -> ScriptDescriptor -> Bool
(ScriptDescriptor -> ScriptDescriptor -> Bool)
-> (ScriptDescriptor -> ScriptDescriptor -> Bool)
-> Eq ScriptDescriptor
forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
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data KeyDescriptor = KeyDescriptor
{ KeyDescriptor -> Maybe Origin
origin :: Maybe Origin
, KeyDescriptor -> Key
keyDef :: Key
}
deriving (KeyDescriptor -> KeyDescriptor -> Bool
(KeyDescriptor -> KeyDescriptor -> Bool)
-> (KeyDescriptor -> KeyDescriptor -> Bool) -> Eq KeyDescriptor
forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
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data Origin = Origin
{ Origin -> Fingerprint
fingerprint :: Fingerprint
, Origin -> DerivPath
derivation :: DerivPath
}
deriving (Origin -> Origin -> Bool
(Origin -> Origin -> Bool)
-> (Origin -> Origin -> Bool) -> Eq Origin
forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
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-> (Origin -> Origin -> Ordering)
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-> Ord Origin
Origin -> Origin -> Bool
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Origin -> Origin -> Origin
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data Key
=
Pubkey PubKeyI
|
SecretKey SecKeyI
| XPub XPubKey DerivPath KeyCollection
deriving (Key -> Key -> Bool
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forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
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pubKey :: PubKeyI -> KeyDescriptor
pubKey :: PubKeyI -> KeyDescriptor
pubKey = Maybe Origin -> Key -> KeyDescriptor
KeyDescriptor Maybe Origin
forall a. Maybe a
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-> (PubKeyI -> Key) -> PubKeyI -> KeyDescriptor
forall b c a. (b -> c) -> (a -> b) -> a -> c
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Pubkey
secKey :: SecKeyI -> KeyDescriptor
secKey :: SecKeyI -> KeyDescriptor
secKey = Maybe Origin -> Key -> KeyDescriptor
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forall a. Maybe a
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-> (SecKeyI -> Key) -> SecKeyI -> KeyDescriptor
forall b c a. (b -> c) -> (a -> b) -> a -> c
. SecKeyI -> Key
SecretKey
keyAtIndex :: Word32 -> Key -> Key
keyAtIndex :: Fingerprint -> Key -> Key
keyAtIndex Fingerprint
ix = \case
XPub XPubKey
xpub DerivPath
path KeyCollection
HardKeys -> XPubKey -> DerivPath -> KeyCollection -> Key
XPub XPubKey
xpub (DerivPath
path DerivPath -> Fingerprint -> DerivPath
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:| Fingerprint
ix) KeyCollection
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path DerivPath -> Fingerprint -> DerivPath
forall t.
AnyOrSoft t =>
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:/ Fingerprint
ix) KeyCollection
Single
Key
key -> Key
key
data KeyCollection
= Single
|
HardKeys
|
SoftKeys
deriving (KeyCollection -> KeyCollection -> Bool
(KeyCollection -> KeyCollection -> Bool)
-> (KeyCollection -> KeyCollection -> Bool) -> Eq KeyCollection
forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
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keyBytes :: KeyDescriptor -> Maybe ByteString
keyBytes :: KeyDescriptor -> Maybe ByteString
keyBytes = (PubKeyI -> ByteString) -> Maybe PubKeyI -> Maybe ByteString
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
fmap PubKeyI -> ByteString
toBytes (Maybe PubKeyI -> Maybe ByteString)
-> (KeyDescriptor -> Maybe PubKeyI)
-> KeyDescriptor
-> Maybe ByteString
forall b c a. (b -> c) -> (a -> b) -> a -> c
. KeyDescriptor -> Maybe PubKeyI
keyDescPubKey
where
toBytes :: PubKeyI -> ByteString
toBytes (PubKeyI PubKey
pk Bool
c) = Bool -> PubKey -> ByteString
exportPubKey Bool
c PubKey
pk
keyDescPubKey :: KeyDescriptor -> Maybe PubKeyI
keyDescPubKey :: KeyDescriptor -> Maybe PubKeyI
keyDescPubKey (KeyDescriptor Maybe Origin
_ Key
k) = case Key
k of
Pubkey PubKeyI
pk -> PubKeyI -> Maybe PubKeyI
forall a. a -> Maybe a
Just PubKeyI
pk
SecretKey SecKeyI
sk -> PubKeyI -> Maybe PubKeyI
forall a. a -> Maybe a
Just (PubKeyI -> Maybe PubKeyI) -> PubKeyI -> Maybe PubKeyI
forall a b. (a -> b) -> a -> b
$ SecKeyI -> PubKeyI
derivePubKeyI SecKeyI
sk
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path KeyCollection
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`PubKeyI` Bool
True) (PubKey -> PubKeyI) -> (SoftPath -> PubKey) -> SoftPath -> PubKeyI
forall b c a. (b -> c) -> (a -> b) -> a -> c
. XPubKey -> PubKey
xPubKey (XPubKey -> PubKey) -> (SoftPath -> XPubKey) -> SoftPath -> PubKey
forall b c a. (b -> c) -> (a -> b) -> a -> c
. (SoftPath -> XPubKey -> XPubKey
`derivePubPath` XPubKey
xpub) (SoftPath -> PubKeyI) -> Maybe SoftPath -> Maybe PubKeyI
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> DerivPath -> Maybe SoftPath
forall t. DerivPathI t -> Maybe SoftPath
toSoft DerivPath
path
Key
_ -> Maybe PubKeyI
forall a. Maybe a
Nothing
isDefinite :: KeyDescriptor -> Bool
isDefinite :: KeyDescriptor -> Bool
isDefinite (KeyDescriptor Maybe Origin
_ Key
k) = case Key
k of
XPub XPubKey
_ DerivPath
_ KeyCollection
HardKeys -> Bool
False
XPub XPubKey
_ DerivPath
_ KeyCollection
SoftKeys -> Bool
False
Key
_ -> Bool
True