{-# LANGUAGE DeriveAnyClass #-}
{-# LANGUAGE DeriveGeneric #-}
{-# LANGUAGE OverloadedStrings #-}
module Haskoin.Script.Standard
(
ScriptOutput(..)
, RedeemScript
, isPayPK
, isPayPKHash
, isPayMulSig
, isPayScriptHash
, isPayWitness
, isPayWitnessPKHash
, isPayWitnessScriptHash
, isDataCarrier
, encodeOutput
, encodeOutputBS
, decodeOutput
, decodeOutputBS
, toP2SH
, toP2WSH
, sortMulSig
, ScriptInput(..)
, SimpleInput(..)
, encodeInput
, encodeInputBS
, decodeInput
, decodeInputBS
, isSpendPK
, isSpendPKHash
, isSpendMulSig
, isScriptHashInput
) where
import Control.Applicative ((<|>))
import Control.DeepSeq
import Control.Monad (guard, liftM2, (<=<))
import qualified Data.Aeson as A
import qualified Data.Aeson.Encoding as A
import Data.ByteString (ByteString)
import qualified Data.ByteString as BS
import Data.Bytes.Get
import Data.Bytes.Put
import Data.Bytes.Serial
import Data.Function (on)
import Data.Hashable
import Data.List (sortBy)
import Data.Maybe (fromJust, isJust)
import Data.Word (Word8)
import GHC.Generics (Generic)
import Haskoin.Constants
import Haskoin.Crypto
import Haskoin.Keys.Common
import Haskoin.Script.Common
import Haskoin.Script.SigHash
import Haskoin.Util
data ScriptOutput
= PayPK { ScriptOutput -> PubKeyI
getOutputPubKey :: !PubKeyI }
| PayPKHash { ScriptOutput -> Hash160
getOutputHash :: !Hash160 }
| PayMulSig { ScriptOutput -> [PubKeyI]
getOutputMulSigKeys :: ![PubKeyI]
, ScriptOutput -> Int
getOutputMulSigRequired :: !Int }
| PayScriptHash { getOutputHash :: !Hash160 }
| PayWitnessPKHash { getOutputHash :: !Hash160 }
| PayWitnessScriptHash { ScriptOutput -> Hash256
getScriptHash :: !Hash256 }
| PayWitness { ScriptOutput -> Word8
getWitnessVersion :: !Word8
, ScriptOutput -> ByteString
getWitnessData :: !ByteString
}
| DataCarrier { ScriptOutput -> ByteString
getOutputData :: !ByteString }
deriving (ScriptOutput -> ScriptOutput -> Bool
(ScriptOutput -> ScriptOutput -> Bool)
-> (ScriptOutput -> ScriptOutput -> Bool) -> Eq ScriptOutput
forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
/= :: ScriptOutput -> ScriptOutput -> Bool
$c/= :: ScriptOutput -> ScriptOutput -> Bool
== :: ScriptOutput -> ScriptOutput -> Bool
$c== :: ScriptOutput -> ScriptOutput -> Bool
Eq, Int -> ScriptOutput -> ShowS
[ScriptOutput] -> ShowS
ScriptOutput -> String
(Int -> ScriptOutput -> ShowS)
-> (ScriptOutput -> String)
-> ([ScriptOutput] -> ShowS)
-> Show ScriptOutput
forall a.
(Int -> a -> ShowS) -> (a -> String) -> ([a] -> ShowS) -> Show a
showList :: [ScriptOutput] -> ShowS
$cshowList :: [ScriptOutput] -> ShowS
show :: ScriptOutput -> String
$cshow :: ScriptOutput -> String
showsPrec :: Int -> ScriptOutput -> ShowS
$cshowsPrec :: Int -> ScriptOutput -> ShowS
Show, ReadPrec [ScriptOutput]
ReadPrec ScriptOutput
Int -> ReadS ScriptOutput
ReadS [ScriptOutput]
(Int -> ReadS ScriptOutput)
-> ReadS [ScriptOutput]
-> ReadPrec ScriptOutput
-> ReadPrec [ScriptOutput]
-> Read ScriptOutput
forall a.
(Int -> ReadS a)
-> ReadS [a] -> ReadPrec a -> ReadPrec [a] -> Read a
readListPrec :: ReadPrec [ScriptOutput]
$creadListPrec :: ReadPrec [ScriptOutput]
readPrec :: ReadPrec ScriptOutput
$creadPrec :: ReadPrec ScriptOutput
readList :: ReadS [ScriptOutput]
$creadList :: ReadS [ScriptOutput]
readsPrec :: Int -> ReadS ScriptOutput
$creadsPrec :: Int -> ReadS ScriptOutput
Read, (forall x. ScriptOutput -> Rep ScriptOutput x)
-> (forall x. Rep ScriptOutput x -> ScriptOutput)
-> Generic ScriptOutput
forall x. Rep ScriptOutput x -> ScriptOutput
forall x. ScriptOutput -> Rep ScriptOutput x
forall a.
(forall x. a -> Rep a x) -> (forall x. Rep a x -> a) -> Generic a
$cto :: forall x. Rep ScriptOutput x -> ScriptOutput
$cfrom :: forall x. ScriptOutput -> Rep ScriptOutput x
Generic, Int -> ScriptOutput -> Int
ScriptOutput -> Int
(Int -> ScriptOutput -> Int)
-> (ScriptOutput -> Int) -> Hashable ScriptOutput
forall a. (Int -> a -> Int) -> (a -> Int) -> Hashable a
hash :: ScriptOutput -> Int
$chash :: ScriptOutput -> Int
hashWithSalt :: Int -> ScriptOutput -> Int
$chashWithSalt :: Int -> ScriptOutput -> Int
Hashable, ScriptOutput -> ()
(ScriptOutput -> ()) -> NFData ScriptOutput
forall a. (a -> ()) -> NFData a
rnf :: ScriptOutput -> ()
$crnf :: ScriptOutput -> ()
NFData)
instance A.FromJSON ScriptOutput where
parseJSON :: Value -> Parser ScriptOutput
parseJSON =
String
-> (Text -> Parser ScriptOutput) -> Value -> Parser ScriptOutput
forall a. String -> (Text -> Parser a) -> Value -> Parser a
A.withText "scriptoutput" ((Text -> Parser ScriptOutput) -> Value -> Parser ScriptOutput)
-> (Text -> Parser ScriptOutput) -> Value -> Parser ScriptOutput
forall a b. (a -> b) -> a -> b
$ \t :: Text
t ->
(String -> Parser ScriptOutput)
-> (ScriptOutput -> Parser ScriptOutput)
-> Either String ScriptOutput
-> Parser ScriptOutput
forall a c b. (a -> c) -> (b -> c) -> Either a b -> c
either String -> Parser ScriptOutput
forall (m :: * -> *) a. MonadFail m => String -> m a
fail ScriptOutput -> Parser ScriptOutput
forall (m :: * -> *) a. Monad m => a -> m a
return (Either String ScriptOutput -> Parser ScriptOutput)
-> Either String ScriptOutput -> Parser ScriptOutput
forall a b. (a -> b) -> a -> b
$
String -> Maybe ByteString -> Either String ByteString
forall b a. b -> Maybe a -> Either b a
maybeToEither "scriptoutput not hex" (Text -> Maybe ByteString
decodeHex Text
t) Either String ByteString
-> (ByteString -> Either String ScriptOutput)
-> Either String ScriptOutput
forall (m :: * -> *) a b. Monad m => m a -> (a -> m b) -> m b
>>=
ByteString -> Either String ScriptOutput
decodeOutputBS
instance A.ToJSON ScriptOutput where
toJSON :: ScriptOutput -> Value
toJSON = Text -> Value
A.String (Text -> Value) -> (ScriptOutput -> Text) -> ScriptOutput -> Value
forall b c a. (b -> c) -> (a -> b) -> a -> c
. ByteString -> Text
encodeHex (ByteString -> Text)
-> (ScriptOutput -> ByteString) -> ScriptOutput -> Text
forall b c a. (b -> c) -> (a -> b) -> a -> c
. ScriptOutput -> ByteString
encodeOutputBS
toEncoding :: ScriptOutput -> Encoding
toEncoding = Text -> Encoding
forall a. Text -> Encoding' a
A.text (Text -> Encoding)
-> (ScriptOutput -> Text) -> ScriptOutput -> Encoding
forall b c a. (b -> c) -> (a -> b) -> a -> c
. ByteString -> Text
encodeHex (ByteString -> Text)
-> (ScriptOutput -> ByteString) -> ScriptOutput -> Text
forall b c a. (b -> c) -> (a -> b) -> a -> c
. ScriptOutput -> ByteString
encodeOutputBS
isPayPK :: ScriptOutput -> Bool
isPayPK :: ScriptOutput -> Bool
isPayPK (PayPK _) = Bool
True
isPayPK _ = Bool
False
isPayPKHash :: ScriptOutput -> Bool
isPayPKHash :: ScriptOutput -> Bool
isPayPKHash (PayPKHash _) = Bool
True
isPayPKHash _ = Bool
False
isPayMulSig :: ScriptOutput -> Bool
isPayMulSig :: ScriptOutput -> Bool
isPayMulSig (PayMulSig _ _) = Bool
True
isPayMulSig _ = Bool
False
isPayScriptHash :: ScriptOutput -> Bool
isPayScriptHash :: ScriptOutput -> Bool
isPayScriptHash (PayScriptHash _) = Bool
True
isPayScriptHash _ = Bool
False
isPayWitnessPKHash :: ScriptOutput -> Bool
isPayWitnessPKHash :: ScriptOutput -> Bool
isPayWitnessPKHash (PayWitnessPKHash _) = Bool
True
isPayWitnessPKHash _ = Bool
False
isPayWitnessScriptHash :: ScriptOutput -> Bool
isPayWitnessScriptHash :: ScriptOutput -> Bool
isPayWitnessScriptHash (PayWitnessScriptHash _) = Bool
True
isPayWitnessScriptHash _ = Bool
False
isPayWitness :: ScriptOutput -> Bool
isPayWitness :: ScriptOutput -> Bool
isPayWitness (PayWitness _ _) = Bool
True
isPayWitness _ = Bool
False
isDataCarrier :: ScriptOutput -> Bool
isDataCarrier :: ScriptOutput -> Bool
isDataCarrier (DataCarrier _) = Bool
True
isDataCarrier _ = Bool
False
decodeOutput :: Script -> Either String ScriptOutput
decodeOutput :: Script -> Either String ScriptOutput
decodeOutput s :: Script
s = case Script -> [ScriptOp]
scriptOps Script
s of
[OP_PUSHDATA bs :: ByteString
bs _, OP_CHECKSIG] -> PubKeyI -> ScriptOutput
PayPK (PubKeyI -> ScriptOutput)
-> Either String PubKeyI -> Either String ScriptOutput
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> Get PubKeyI -> ByteString -> Either String PubKeyI
forall a. Get a -> ByteString -> Either String a
runGetS Get PubKeyI
forall a (m :: * -> *). (Serial a, MonadGet m) => m a
deserialize ByteString
bs
[OP_DUP, OP_HASH160, OP_PUSHDATA bs :: ByteString
bs _, OP_EQUALVERIFY, OP_CHECKSIG] ->
Hash160 -> ScriptOutput
PayPKHash (Hash160 -> ScriptOutput)
-> Either String Hash160 -> Either String ScriptOutput
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> Get Hash160 -> ByteString -> Either String Hash160
forall a. Get a -> ByteString -> Either String a
runGetS Get Hash160
forall a (m :: * -> *). (Serial a, MonadGet m) => m a
deserialize ByteString
bs
[OP_HASH160, OP_PUSHDATA bs :: ByteString
bs _, OP_EQUAL] ->
Hash160 -> ScriptOutput
PayScriptHash (Hash160 -> ScriptOutput)
-> Either String Hash160 -> Either String ScriptOutput
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> Get Hash160 -> ByteString -> Either String Hash160
forall a. Get a -> ByteString -> Either String a
runGetS Get Hash160
forall a (m :: * -> *). (Serial a, MonadGet m) => m a
deserialize ByteString
bs
[OP_0, OP_PUSHDATA bs :: ByteString
bs OPCODE]
| ByteString -> Int
BS.length ByteString
bs Int -> Int -> Bool
forall a. Eq a => a -> a -> Bool
== 20 -> Hash160 -> ScriptOutput
PayWitnessPKHash (Hash160 -> ScriptOutput)
-> Either String Hash160 -> Either String ScriptOutput
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> Get Hash160 -> ByteString -> Either String Hash160
forall a. Get a -> ByteString -> Either String a
runGetS Get Hash160
forall a (m :: * -> *). (Serial a, MonadGet m) => m a
deserialize ByteString
bs
| ByteString -> Int
BS.length ByteString
bs Int -> Int -> Bool
forall a. Eq a => a -> a -> Bool
== 32 -> Hash256 -> ScriptOutput
PayWitnessScriptHash (Hash256 -> ScriptOutput)
-> Either String Hash256 -> Either String ScriptOutput
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> Get Hash256 -> ByteString -> Either String Hash256
forall a. Get a -> ByteString -> Either String a
runGetS Get Hash256
forall a (m :: * -> *). (Serial a, MonadGet m) => m a
deserialize ByteString
bs
| ByteString -> Int
BS.length ByteString
bs Int -> Int -> Bool
forall a. Eq a => a -> a -> Bool
/= 20 Bool -> Bool -> Bool
&& ByteString -> Int
BS.length ByteString
bs Int -> Int -> Bool
forall a. Eq a => a -> a -> Bool
/= 32 ->
String -> Either String ScriptOutput
forall a b. a -> Either a b
Left "Version 0 segwit program must be 20 or 32 bytes long"
[ver :: ScriptOp
ver, OP_PUSHDATA bs :: ByteString
bs _]
| Maybe Word8 -> Bool
forall a. Maybe a -> Bool
isJust (ScriptOp -> Maybe Word8
opWitnessVersion ScriptOp
ver)
Bool -> Bool -> Bool
&& ByteString -> Int
BS.length ByteString
bs Int -> Int -> Bool
forall a. Ord a => a -> a -> Bool
>= 2
Bool -> Bool -> Bool
&& ByteString -> Int
BS.length ByteString
bs Int -> Int -> Bool
forall a. Ord a => a -> a -> Bool
<= 40 ->
ScriptOutput -> Either String ScriptOutput
forall a b. b -> Either a b
Right (ScriptOutput -> Either String ScriptOutput)
-> ScriptOutput -> Either String ScriptOutput
forall a b. (a -> b) -> a -> b
$ Word8 -> ByteString -> ScriptOutput
PayWitness (Maybe Word8 -> Word8
forall a. HasCallStack => Maybe a -> a
fromJust (ScriptOp -> Maybe Word8
opWitnessVersion ScriptOp
ver)) ByteString
bs
[OP_RETURN, OP_PUSHDATA bs :: ByteString
bs _] -> ScriptOutput -> Either String ScriptOutput
forall a b. b -> Either a b
Right (ScriptOutput -> Either String ScriptOutput)
-> ScriptOutput -> Either String ScriptOutput
forall a b. (a -> b) -> a -> b
$ ByteString -> ScriptOutput
DataCarrier ByteString
bs
_ -> Script -> Either String ScriptOutput
matchPayMulSig Script
s
witnessVersionOp :: Word8 -> Maybe ScriptOp
witnessVersionOp :: Word8 -> Maybe ScriptOp
witnessVersionOp 0 = ScriptOp -> Maybe ScriptOp
forall a. a -> Maybe a
Just ScriptOp
OP_0
witnessVersionOp 1 = ScriptOp -> Maybe ScriptOp
forall a. a -> Maybe a
Just ScriptOp
OP_1
witnessVersionOp 2 = ScriptOp -> Maybe ScriptOp
forall a. a -> Maybe a
Just ScriptOp
OP_2
witnessVersionOp 3 = ScriptOp -> Maybe ScriptOp
forall a. a -> Maybe a
Just ScriptOp
OP_3
witnessVersionOp 4 = ScriptOp -> Maybe ScriptOp
forall a. a -> Maybe a
Just ScriptOp
OP_4
witnessVersionOp 5 = ScriptOp -> Maybe ScriptOp
forall a. a -> Maybe a
Just ScriptOp
OP_5
witnessVersionOp 6 = ScriptOp -> Maybe ScriptOp
forall a. a -> Maybe a
Just ScriptOp
OP_6
witnessVersionOp 7 = ScriptOp -> Maybe ScriptOp
forall a. a -> Maybe a
Just ScriptOp
OP_7
witnessVersionOp 8 = ScriptOp -> Maybe ScriptOp
forall a. a -> Maybe a
Just ScriptOp
OP_8
witnessVersionOp 9 = ScriptOp -> Maybe ScriptOp
forall a. a -> Maybe a
Just ScriptOp
OP_9
witnessVersionOp 10 = ScriptOp -> Maybe ScriptOp
forall a. a -> Maybe a
Just ScriptOp
OP_10
witnessVersionOp 11 = ScriptOp -> Maybe ScriptOp
forall a. a -> Maybe a
Just ScriptOp
OP_11
witnessVersionOp 12 = ScriptOp -> Maybe ScriptOp
forall a. a -> Maybe a
Just ScriptOp
OP_12
witnessVersionOp 13 = ScriptOp -> Maybe ScriptOp
forall a. a -> Maybe a
Just ScriptOp
OP_13
witnessVersionOp 14 = ScriptOp -> Maybe ScriptOp
forall a. a -> Maybe a
Just ScriptOp
OP_14
witnessVersionOp 15 = ScriptOp -> Maybe ScriptOp
forall a. a -> Maybe a
Just ScriptOp
OP_15
witnessVersionOp 16 = ScriptOp -> Maybe ScriptOp
forall a. a -> Maybe a
Just ScriptOp
OP_16
witnessVersionOp _ = Maybe ScriptOp
forall a. Maybe a
Nothing
opWitnessVersion :: ScriptOp -> Maybe Word8
opWitnessVersion :: ScriptOp -> Maybe Word8
opWitnessVersion OP_0 = Word8 -> Maybe Word8
forall a. a -> Maybe a
Just 0
opWitnessVersion OP_1 = Word8 -> Maybe Word8
forall a. a -> Maybe a
Just 1
opWitnessVersion OP_2 = Word8 -> Maybe Word8
forall a. a -> Maybe a
Just 2
opWitnessVersion OP_3 = Word8 -> Maybe Word8
forall a. a -> Maybe a
Just 3
opWitnessVersion OP_4 = Word8 -> Maybe Word8
forall a. a -> Maybe a
Just 4
opWitnessVersion OP_5 = Word8 -> Maybe Word8
forall a. a -> Maybe a
Just 5
opWitnessVersion OP_6 = Word8 -> Maybe Word8
forall a. a -> Maybe a
Just 6
opWitnessVersion OP_7 = Word8 -> Maybe Word8
forall a. a -> Maybe a
Just 7
opWitnessVersion OP_8 = Word8 -> Maybe Word8
forall a. a -> Maybe a
Just 8
opWitnessVersion OP_9 = Word8 -> Maybe Word8
forall a. a -> Maybe a
Just 9
opWitnessVersion OP_10 = Word8 -> Maybe Word8
forall a. a -> Maybe a
Just 10
opWitnessVersion OP_11 = Word8 -> Maybe Word8
forall a. a -> Maybe a
Just 11
opWitnessVersion OP_12 = Word8 -> Maybe Word8
forall a. a -> Maybe a
Just 12
opWitnessVersion OP_13 = Word8 -> Maybe Word8
forall a. a -> Maybe a
Just 13
opWitnessVersion OP_14 = Word8 -> Maybe Word8
forall a. a -> Maybe a
Just 14
opWitnessVersion OP_15 = Word8 -> Maybe Word8
forall a. a -> Maybe a
Just 15
opWitnessVersion OP_16 = Word8 -> Maybe Word8
forall a. a -> Maybe a
Just 16
opWitnessVersion _ = Maybe Word8
forall a. Maybe a
Nothing
decodeOutputBS :: ByteString -> Either String ScriptOutput
decodeOutputBS :: ByteString -> Either String ScriptOutput
decodeOutputBS = Script -> Either String ScriptOutput
decodeOutput (Script -> Either String ScriptOutput)
-> (ByteString -> Either String Script)
-> ByteString
-> Either String ScriptOutput
forall (m :: * -> *) b c a.
Monad m =>
(b -> m c) -> (a -> m b) -> a -> m c
<=< Get Script -> ByteString -> Either String Script
forall a. Get a -> ByteString -> Either String a
runGetS Get Script
forall a (m :: * -> *). (Serial a, MonadGet m) => m a
deserialize
encodeOutput :: ScriptOutput -> Script
encodeOutput :: ScriptOutput -> Script
encodeOutput s :: ScriptOutput
s = [ScriptOp] -> Script
Script ([ScriptOp] -> Script) -> [ScriptOp] -> Script
forall a b. (a -> b) -> a -> b
$ case ScriptOutput
s of
(PayPK k :: PubKeyI
k) -> [ByteString -> ScriptOp
opPushData (ByteString -> ScriptOp) -> ByteString -> ScriptOp
forall a b. (a -> b) -> a -> b
$ Put -> ByteString
runPutS (Put -> ByteString) -> Put -> ByteString
forall a b. (a -> b) -> a -> b
$ PubKeyI -> Put
forall a (m :: * -> *). (Serial a, MonadPut m) => a -> m ()
serialize PubKeyI
k, ScriptOp
OP_CHECKSIG]
(PayPKHash h :: Hash160
h) ->
[ ScriptOp
OP_DUP
, ScriptOp
OP_HASH160
, ByteString -> ScriptOp
opPushData (ByteString -> ScriptOp) -> ByteString -> ScriptOp
forall a b. (a -> b) -> a -> b
$ Put -> ByteString
runPutS (Put -> ByteString) -> Put -> ByteString
forall a b. (a -> b) -> a -> b
$ Hash160 -> Put
forall a (m :: * -> *). (Serial a, MonadPut m) => a -> m ()
serialize Hash160
h
, ScriptOp
OP_EQUALVERIFY, ScriptOp
OP_CHECKSIG
]
(PayMulSig ps :: [PubKeyI]
ps r :: Int
r)
| Int
r Int -> Int -> Bool
forall a. Ord a => a -> a -> Bool
<= [PubKeyI] -> Int
forall (t :: * -> *) a. Foldable t => t a -> Int
length [PubKeyI]
ps ->
let opM :: ScriptOp
opM = Int -> ScriptOp
intToScriptOp Int
r
opN :: ScriptOp
opN = Int -> ScriptOp
intToScriptOp (Int -> ScriptOp) -> Int -> ScriptOp
forall a b. (a -> b) -> a -> b
$ [PubKeyI] -> Int
forall (t :: * -> *) a. Foldable t => t a -> Int
length [PubKeyI]
ps
keys :: [ScriptOp]
keys = (PubKeyI -> ScriptOp) -> [PubKeyI] -> [ScriptOp]
forall a b. (a -> b) -> [a] -> [b]
map (ByteString -> ScriptOp
opPushData (ByteString -> ScriptOp)
-> (PubKeyI -> ByteString) -> PubKeyI -> ScriptOp
forall b c a. (b -> c) -> (a -> b) -> a -> c
. Put -> ByteString
runPutS (Put -> ByteString) -> (PubKeyI -> Put) -> PubKeyI -> ByteString
forall b c a. (b -> c) -> (a -> b) -> a -> c
. PubKeyI -> Put
forall a (m :: * -> *). (Serial a, MonadPut m) => a -> m ()
serialize) [PubKeyI]
ps
in ScriptOp
opM ScriptOp -> [ScriptOp] -> [ScriptOp]
forall a. a -> [a] -> [a]
: [ScriptOp]
keys [ScriptOp] -> [ScriptOp] -> [ScriptOp]
forall a. [a] -> [a] -> [a]
++ [ScriptOp
opN, ScriptOp
OP_CHECKMULTISIG]
| Bool
otherwise -> String -> [ScriptOp]
forall a. HasCallStack => String -> a
error "encodeOutput: PayMulSig r must be <= than pkeys"
(PayScriptHash h :: Hash160
h) ->
[ ScriptOp
OP_HASH160, ByteString -> ScriptOp
opPushData (ByteString -> ScriptOp) -> ByteString -> ScriptOp
forall a b. (a -> b) -> a -> b
$ Put -> ByteString
runPutS (Put -> ByteString) -> Put -> ByteString
forall a b. (a -> b) -> a -> b
$ Hash160 -> Put
forall a (m :: * -> *). (Serial a, MonadPut m) => a -> m ()
serialize Hash160
h, ScriptOp
OP_EQUAL]
(PayWitnessPKHash h :: Hash160
h) ->
[ ScriptOp
OP_0, ByteString -> ScriptOp
opPushData (ByteString -> ScriptOp) -> ByteString -> ScriptOp
forall a b. (a -> b) -> a -> b
$ Put -> ByteString
runPutS (Put -> ByteString) -> Put -> ByteString
forall a b. (a -> b) -> a -> b
$ Hash160 -> Put
forall a (m :: * -> *). (Serial a, MonadPut m) => a -> m ()
serialize Hash160
h ]
(PayWitnessScriptHash h :: Hash256
h) ->
[ ScriptOp
OP_0, ByteString -> ScriptOp
opPushData (ByteString -> ScriptOp) -> ByteString -> ScriptOp
forall a b. (a -> b) -> a -> b
$ Put -> ByteString
runPutS (Put -> ByteString) -> Put -> ByteString
forall a b. (a -> b) -> a -> b
$ Hash256 -> Put
forall a (m :: * -> *). (Serial a, MonadPut m) => a -> m ()
serialize Hash256
h ]
(PayWitness v :: Word8
v h :: ByteString
h) ->
[ case Word8 -> Maybe ScriptOp
witnessVersionOp Word8
v of
Nothing -> String -> ScriptOp
forall a. HasCallStack => String -> a
error "encodeOutput: invalid witness version"
Just c :: ScriptOp
c -> ScriptOp
c
, ByteString -> ScriptOp
opPushData ByteString
h ]
(DataCarrier d :: ByteString
d) -> [ScriptOp
OP_RETURN, ByteString -> ScriptOp
opPushData ByteString
d]
encodeOutputBS :: ScriptOutput -> ByteString
encodeOutputBS :: ScriptOutput -> ByteString
encodeOutputBS = Put -> ByteString
runPutS (Put -> ByteString)
-> (ScriptOutput -> Put) -> ScriptOutput -> ByteString
forall b c a. (b -> c) -> (a -> b) -> a -> c
. Script -> Put
forall a (m :: * -> *). (Serial a, MonadPut m) => a -> m ()
serialize (Script -> Put) -> (ScriptOutput -> Script) -> ScriptOutput -> Put
forall b c a. (b -> c) -> (a -> b) -> a -> c
. ScriptOutput -> Script
encodeOutput
toP2SH :: Script -> ScriptOutput
toP2SH :: Script -> ScriptOutput
toP2SH = Hash160 -> ScriptOutput
PayScriptHash (Hash160 -> ScriptOutput)
-> (Script -> Hash160) -> Script -> ScriptOutput
forall b c a. (b -> c) -> (a -> b) -> a -> c
. ByteString -> Hash160
forall b. ByteArrayAccess b => b -> Hash160
addressHash (ByteString -> Hash160)
-> (Script -> ByteString) -> Script -> Hash160
forall b c a. (b -> c) -> (a -> b) -> a -> c
. Put -> ByteString
runPutS (Put -> ByteString) -> (Script -> Put) -> Script -> ByteString
forall b c a. (b -> c) -> (a -> b) -> a -> c
. Script -> Put
forall a (m :: * -> *). (Serial a, MonadPut m) => a -> m ()
serialize
toP2WSH :: Script -> ScriptOutput
toP2WSH :: Script -> ScriptOutput
toP2WSH = Hash256 -> ScriptOutput
PayWitnessScriptHash (Hash256 -> ScriptOutput)
-> (Script -> Hash256) -> Script -> ScriptOutput
forall b c a. (b -> c) -> (a -> b) -> a -> c
. ByteString -> Hash256
forall b. ByteArrayAccess b => b -> Hash256
sha256 (ByteString -> Hash256)
-> (Script -> ByteString) -> Script -> Hash256
forall b c a. (b -> c) -> (a -> b) -> a -> c
. Put -> ByteString
runPutS (Put -> ByteString) -> (Script -> Put) -> Script -> ByteString
forall b c a. (b -> c) -> (a -> b) -> a -> c
. Script -> Put
forall a (m :: * -> *). (Serial a, MonadPut m) => a -> m ()
serialize
matchPayMulSig :: Script -> Either String ScriptOutput
matchPayMulSig :: Script -> Either String ScriptOutput
matchPayMulSig (Script ops :: [ScriptOp]
ops) = case Int -> [ScriptOp] -> ([ScriptOp], [ScriptOp])
forall a. Int -> [a] -> ([a], [a])
splitAt ([ScriptOp] -> Int
forall (t :: * -> *) a. Foldable t => t a -> Int
length [ScriptOp]
ops Int -> Int -> Int
forall a. Num a => a -> a -> a
- 2) [ScriptOp]
ops of
(m :: ScriptOp
m:xs :: [ScriptOp]
xs,[n :: ScriptOp
n,OP_CHECKMULTISIG]) -> do
(intM :: Int
intM,intN :: Int
intN) <- (Int -> Int -> (Int, Int))
-> Either String Int
-> Either String Int
-> Either String (Int, Int)
forall (m :: * -> *) a1 a2 r.
Monad m =>
(a1 -> a2 -> r) -> m a1 -> m a2 -> m r
liftM2 (,) (ScriptOp -> Either String Int
scriptOpToInt ScriptOp
m) (ScriptOp -> Either String Int
scriptOpToInt ScriptOp
n)
if Int
intM Int -> Int -> Bool
forall a. Ord a => a -> a -> Bool
<= Int
intN Bool -> Bool -> Bool
&& [ScriptOp] -> Int
forall (t :: * -> *) a. Foldable t => t a -> Int
length [ScriptOp]
xs Int -> Int -> Bool
forall a. Eq a => a -> a -> Bool
== Int
intN
then ([PubKeyI] -> Int -> ScriptOutput)
-> Either String [PubKeyI]
-> Either String Int
-> Either String ScriptOutput
forall (m :: * -> *) a1 a2 r.
Monad m =>
(a1 -> a2 -> r) -> m a1 -> m a2 -> m r
liftM2 [PubKeyI] -> Int -> ScriptOutput
PayMulSig ([ScriptOp] -> Either String [PubKeyI]
forall a. Serial a => [ScriptOp] -> Either String [a]
go [ScriptOp]
xs) (Int -> Either String Int
forall (m :: * -> *) a. Monad m => a -> m a
return Int
intM)
else String -> Either String ScriptOutput
forall a b. a -> Either a b
Left "matchPayMulSig: Invalid M or N parameters"
_ -> String -> Either String ScriptOutput
forall a b. a -> Either a b
Left "matchPayMulSig: script did not match output template"
where
go :: [ScriptOp] -> Either String [a]
go (OP_PUSHDATA bs :: ByteString
bs _:xs :: [ScriptOp]
xs) = (a -> [a] -> [a])
-> Either String a -> Either String [a] -> Either String [a]
forall (m :: * -> *) a1 a2 r.
Monad m =>
(a1 -> a2 -> r) -> m a1 -> m a2 -> m r
liftM2 (:) (Get a -> ByteString -> Either String a
forall a. Get a -> ByteString -> Either String a
runGetS Get a
forall a (m :: * -> *). (Serial a, MonadGet m) => m a
deserialize ByteString
bs) ([ScriptOp] -> Either String [a]
go [ScriptOp]
xs)
go [] = [a] -> Either String [a]
forall (m :: * -> *) a. Monad m => a -> m a
return []
go _ = String -> Either String [a]
forall a b. a -> Either a b
Left "matchPayMulSig: invalid multisig opcode"
sortMulSig :: ScriptOutput -> ScriptOutput
sortMulSig :: ScriptOutput -> ScriptOutput
sortMulSig out :: ScriptOutput
out = case ScriptOutput
out of
PayMulSig keys :: [PubKeyI]
keys r :: Int
r -> [PubKeyI] -> Int -> ScriptOutput
PayMulSig ((PubKeyI -> PubKeyI -> Ordering) -> [PubKeyI] -> [PubKeyI]
forall a. (a -> a -> Ordering) -> [a] -> [a]
sortBy (ByteString -> ByteString -> Ordering
forall a. Ord a => a -> a -> Ordering
compare (ByteString -> ByteString -> Ordering)
-> (PubKeyI -> ByteString) -> PubKeyI -> PubKeyI -> Ordering
forall b c a. (b -> b -> c) -> (a -> b) -> a -> a -> c
`on` (Put -> ByteString
runPutS (Put -> ByteString) -> (PubKeyI -> Put) -> PubKeyI -> ByteString
forall b c a. (b -> c) -> (a -> b) -> a -> c
. PubKeyI -> Put
forall a (m :: * -> *). (Serial a, MonadPut m) => a -> m ()
serialize)) [PubKeyI]
keys) Int
r
_ -> String -> ScriptOutput
forall a. HasCallStack => String -> a
error "Can only call orderMulSig on PayMulSig scripts"
data SimpleInput = SpendPK
{ SimpleInput -> TxSignature
getInputSig :: !TxSignature
}
| SpendPKHash
{ getInputSig :: !TxSignature
, SimpleInput -> PubKeyI
getInputKey :: !PubKeyI
}
| SpendMulSig
{ SimpleInput -> [TxSignature]
getInputMulSigKeys :: ![TxSignature]
}
deriving (SimpleInput -> SimpleInput -> Bool
(SimpleInput -> SimpleInput -> Bool)
-> (SimpleInput -> SimpleInput -> Bool) -> Eq SimpleInput
forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
/= :: SimpleInput -> SimpleInput -> Bool
$c/= :: SimpleInput -> SimpleInput -> Bool
== :: SimpleInput -> SimpleInput -> Bool
$c== :: SimpleInput -> SimpleInput -> Bool
Eq, Int -> SimpleInput -> ShowS
[SimpleInput] -> ShowS
SimpleInput -> String
(Int -> SimpleInput -> ShowS)
-> (SimpleInput -> String)
-> ([SimpleInput] -> ShowS)
-> Show SimpleInput
forall a.
(Int -> a -> ShowS) -> (a -> String) -> ([a] -> ShowS) -> Show a
showList :: [SimpleInput] -> ShowS
$cshowList :: [SimpleInput] -> ShowS
show :: SimpleInput -> String
$cshow :: SimpleInput -> String
showsPrec :: Int -> SimpleInput -> ShowS
$cshowsPrec :: Int -> SimpleInput -> ShowS
Show, (forall x. SimpleInput -> Rep SimpleInput x)
-> (forall x. Rep SimpleInput x -> SimpleInput)
-> Generic SimpleInput
forall x. Rep SimpleInput x -> SimpleInput
forall x. SimpleInput -> Rep SimpleInput x
forall a.
(forall x. a -> Rep a x) -> (forall x. Rep a x -> a) -> Generic a
$cto :: forall x. Rep SimpleInput x -> SimpleInput
$cfrom :: forall x. SimpleInput -> Rep SimpleInput x
Generic, SimpleInput -> ()
(SimpleInput -> ()) -> NFData SimpleInput
forall a. (a -> ()) -> NFData a
rnf :: SimpleInput -> ()
$crnf :: SimpleInput -> ()
NFData)
isSpendPK :: ScriptInput -> Bool
isSpendPK :: ScriptInput -> Bool
isSpendPK (RegularInput (SpendPK _)) = Bool
True
isSpendPK _ = Bool
False
isSpendPKHash :: ScriptInput -> Bool
isSpendPKHash :: ScriptInput -> Bool
isSpendPKHash (RegularInput (SpendPKHash _ _)) = Bool
True
isSpendPKHash _ = Bool
False
isSpendMulSig :: ScriptInput -> Bool
isSpendMulSig :: ScriptInput -> Bool
isSpendMulSig (RegularInput (SpendMulSig _)) = Bool
True
isSpendMulSig _ = Bool
False
isScriptHashInput :: ScriptInput -> Bool
isScriptHashInput :: ScriptInput -> Bool
isScriptHashInput (ScriptHashInput _ _) = Bool
True
isScriptHashInput _ = Bool
False
type RedeemScript = ScriptOutput
data ScriptInput = RegularInput
{ ScriptInput -> SimpleInput
getRegularInput :: !SimpleInput
}
| ScriptHashInput
{ ScriptInput -> SimpleInput
getScriptHashInput :: !SimpleInput
, ScriptInput -> ScriptOutput
getScriptHashRedeem :: !RedeemScript
}
deriving (ScriptInput -> ScriptInput -> Bool
(ScriptInput -> ScriptInput -> Bool)
-> (ScriptInput -> ScriptInput -> Bool) -> Eq ScriptInput
forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
/= :: ScriptInput -> ScriptInput -> Bool
$c/= :: ScriptInput -> ScriptInput -> Bool
== :: ScriptInput -> ScriptInput -> Bool
$c== :: ScriptInput -> ScriptInput -> Bool
Eq, Int -> ScriptInput -> ShowS
[ScriptInput] -> ShowS
ScriptInput -> String
(Int -> ScriptInput -> ShowS)
-> (ScriptInput -> String)
-> ([ScriptInput] -> ShowS)
-> Show ScriptInput
forall a.
(Int -> a -> ShowS) -> (a -> String) -> ([a] -> ShowS) -> Show a
showList :: [ScriptInput] -> ShowS
$cshowList :: [ScriptInput] -> ShowS
show :: ScriptInput -> String
$cshow :: ScriptInput -> String
showsPrec :: Int -> ScriptInput -> ShowS
$cshowsPrec :: Int -> ScriptInput -> ShowS
Show, (forall x. ScriptInput -> Rep ScriptInput x)
-> (forall x. Rep ScriptInput x -> ScriptInput)
-> Generic ScriptInput
forall x. Rep ScriptInput x -> ScriptInput
forall x. ScriptInput -> Rep ScriptInput x
forall a.
(forall x. a -> Rep a x) -> (forall x. Rep a x -> a) -> Generic a
$cto :: forall x. Rep ScriptInput x -> ScriptInput
$cfrom :: forall x. ScriptInput -> Rep ScriptInput x
Generic, ScriptInput -> ()
(ScriptInput -> ()) -> NFData ScriptInput
forall a. (a -> ()) -> NFData a
rnf :: ScriptInput -> ()
$crnf :: ScriptInput -> ()
NFData)
decodeSimpleInput :: Network -> Script -> Either String SimpleInput
decodeSimpleInput :: Network -> Script -> Either String SimpleInput
decodeSimpleInput net :: Network
net (Script ops :: [ScriptOp]
ops) =
String -> Maybe SimpleInput -> Either String SimpleInput
forall b a. b -> Maybe a -> Either b a
maybeToEither String
errMsg (Maybe SimpleInput -> Either String SimpleInput)
-> Maybe SimpleInput -> Either String SimpleInput
forall a b. (a -> b) -> a -> b
$ [ScriptOp] -> Maybe SimpleInput
matchPK [ScriptOp]
ops Maybe SimpleInput -> Maybe SimpleInput -> Maybe SimpleInput
forall (f :: * -> *) a. Alternative f => f a -> f a -> f a
<|> [ScriptOp] -> Maybe SimpleInput
matchPKHash [ScriptOp]
ops Maybe SimpleInput -> Maybe SimpleInput -> Maybe SimpleInput
forall (f :: * -> *) a. Alternative f => f a -> f a -> f a
<|> [ScriptOp] -> Maybe SimpleInput
matchMulSig [ScriptOp]
ops
where
matchPK :: [ScriptOp] -> Maybe SimpleInput
matchPK [op :: ScriptOp
op] = TxSignature -> SimpleInput
SpendPK (TxSignature -> SimpleInput)
-> Maybe TxSignature -> Maybe SimpleInput
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> ScriptOp -> Maybe TxSignature
f ScriptOp
op
matchPK _ = Maybe SimpleInput
forall a. Maybe a
Nothing
matchPKHash :: [ScriptOp] -> Maybe SimpleInput
matchPKHash [op :: ScriptOp
op, OP_PUSHDATA pub :: ByteString
pub _] =
TxSignature -> PubKeyI -> SimpleInput
SpendPKHash (TxSignature -> PubKeyI -> SimpleInput)
-> Maybe TxSignature -> Maybe (PubKeyI -> SimpleInput)
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> ScriptOp -> Maybe TxSignature
f ScriptOp
op Maybe (PubKeyI -> SimpleInput)
-> Maybe PubKeyI -> Maybe SimpleInput
forall (f :: * -> *) a b. Applicative f => f (a -> b) -> f a -> f b
<*> Either String PubKeyI -> Maybe PubKeyI
forall a b. Either a b -> Maybe b
eitherToMaybe (Get PubKeyI -> ByteString -> Either String PubKeyI
forall a. Get a -> ByteString -> Either String a
runGetS Get PubKeyI
forall a (m :: * -> *). (Serial a, MonadGet m) => m a
deserialize ByteString
pub)
matchPKHash _ = Maybe SimpleInput
forall a. Maybe a
Nothing
matchMulSig :: [ScriptOp] -> Maybe SimpleInput
matchMulSig (x :: ScriptOp
x:xs :: [ScriptOp]
xs) = do
Bool -> Maybe ()
forall (f :: * -> *). Alternative f => Bool -> f ()
guard (Bool -> Maybe ()) -> Bool -> Maybe ()
forall a b. (a -> b) -> a -> b
$ ScriptOp
x ScriptOp -> ScriptOp -> Bool
forall a. Eq a => a -> a -> Bool
== ScriptOp
OP_0
[TxSignature] -> SimpleInput
SpendMulSig ([TxSignature] -> SimpleInput)
-> Maybe [TxSignature] -> Maybe SimpleInput
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> (ScriptOp -> Maybe TxSignature)
-> [ScriptOp] -> Maybe [TxSignature]
forall (t :: * -> *) (m :: * -> *) a b.
(Traversable t, Monad m) =>
(a -> m b) -> t a -> m (t b)
mapM ScriptOp -> Maybe TxSignature
f [ScriptOp]
xs
matchMulSig _ = Maybe SimpleInput
forall a. Maybe a
Nothing
f :: ScriptOp -> Maybe TxSignature
f OP_0 = TxSignature -> Maybe TxSignature
forall (m :: * -> *) a. Monad m => a -> m a
return TxSignature
TxSignatureEmpty
f (OP_PUSHDATA "" OPCODE) = ScriptOp -> Maybe TxSignature
f ScriptOp
OP_0
f (OP_PUSHDATA bs :: ByteString
bs _) = Either String TxSignature -> Maybe TxSignature
forall a b. Either a b -> Maybe b
eitherToMaybe (Either String TxSignature -> Maybe TxSignature)
-> Either String TxSignature -> Maybe TxSignature
forall a b. (a -> b) -> a -> b
$ Network -> ByteString -> Either String TxSignature
decodeTxSig Network
net ByteString
bs
f _ = Maybe TxSignature
forall a. Maybe a
Nothing
errMsg :: String
errMsg = "decodeInput: Could not decode script input"
decodeInput :: Network -> Script -> Either String ScriptInput
decodeInput :: Network -> Script -> Either String ScriptInput
decodeInput net :: Network
net s :: Script
s@(Script ops :: [ScriptOp]
ops) =
String -> Maybe ScriptInput -> Either String ScriptInput
forall b a. b -> Maybe a -> Either b a
maybeToEither String
errMsg (Maybe ScriptInput -> Either String ScriptInput)
-> Maybe ScriptInput -> Either String ScriptInput
forall a b. (a -> b) -> a -> b
$ Maybe ScriptInput
matchSimpleInput Maybe ScriptInput -> Maybe ScriptInput -> Maybe ScriptInput
forall (f :: * -> *) a. Alternative f => f a -> f a -> f a
<|> Maybe ScriptInput
matchPayScriptHash
where
matchSimpleInput :: Maybe ScriptInput
matchSimpleInput =
SimpleInput -> ScriptInput
RegularInput (SimpleInput -> ScriptInput)
-> Maybe SimpleInput -> Maybe ScriptInput
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> Either String SimpleInput -> Maybe SimpleInput
forall a b. Either a b -> Maybe b
eitherToMaybe (Network -> Script -> Either String SimpleInput
decodeSimpleInput Network
net Script
s)
matchPayScriptHash :: Maybe ScriptInput
matchPayScriptHash =
case Int -> [ScriptOp] -> ([ScriptOp], [ScriptOp])
forall a. Int -> [a] -> ([a], [a])
splitAt ([ScriptOp] -> Int
forall (t :: * -> *) a. Foldable t => t a -> Int
length (Script -> [ScriptOp]
scriptOps Script
s) Int -> Int -> Int
forall a. Num a => a -> a -> a
- 1) [ScriptOp]
ops of
(is :: [ScriptOp]
is, [OP_PUSHDATA bs :: ByteString
bs _]) -> do
ScriptOutput
rdm <- Either String ScriptOutput -> Maybe ScriptOutput
forall a b. Either a b -> Maybe b
eitherToMaybe (Either String ScriptOutput -> Maybe ScriptOutput)
-> Either String ScriptOutput -> Maybe ScriptOutput
forall a b. (a -> b) -> a -> b
$ ByteString -> Either String ScriptOutput
decodeOutputBS ByteString
bs
SimpleInput
inp <- Either String SimpleInput -> Maybe SimpleInput
forall a b. Either a b -> Maybe b
eitherToMaybe (Either String SimpleInput -> Maybe SimpleInput)
-> Either String SimpleInput -> Maybe SimpleInput
forall a b. (a -> b) -> a -> b
$ Network -> Script -> Either String SimpleInput
decodeSimpleInput Network
net (Script -> Either String SimpleInput)
-> Script -> Either String SimpleInput
forall a b. (a -> b) -> a -> b
$ [ScriptOp] -> Script
Script [ScriptOp]
is
ScriptInput -> Maybe ScriptInput
forall (m :: * -> *) a. Monad m => a -> m a
return (ScriptInput -> Maybe ScriptInput)
-> ScriptInput -> Maybe ScriptInput
forall a b. (a -> b) -> a -> b
$ SimpleInput -> ScriptOutput -> ScriptInput
ScriptHashInput SimpleInput
inp ScriptOutput
rdm
_ -> Maybe ScriptInput
forall a. Maybe a
Nothing
errMsg :: String
errMsg = "decodeInput: Could not decode script input"
decodeInputBS :: Network -> ByteString -> Either String ScriptInput
decodeInputBS :: Network -> ByteString -> Either String ScriptInput
decodeInputBS net :: Network
net = Network -> Script -> Either String ScriptInput
decodeInput Network
net (Script -> Either String ScriptInput)
-> (ByteString -> Either String Script)
-> ByteString
-> Either String ScriptInput
forall (m :: * -> *) b c a.
Monad m =>
(b -> m c) -> (a -> m b) -> a -> m c
<=< Get Script -> ByteString -> Either String Script
forall a. Get a -> ByteString -> Either String a
runGetS Get Script
forall a (m :: * -> *). (Serial a, MonadGet m) => m a
deserialize
encodeInput :: ScriptInput -> Script
encodeInput :: ScriptInput -> Script
encodeInput s :: ScriptInput
s = case ScriptInput
s of
RegularInput ri :: SimpleInput
ri -> SimpleInput -> Script
encodeSimpleInput SimpleInput
ri
ScriptHashInput i :: SimpleInput
i o :: ScriptOutput
o -> [ScriptOp] -> Script
Script ([ScriptOp] -> Script) -> [ScriptOp] -> Script
forall a b. (a -> b) -> a -> b
$
Script -> [ScriptOp]
scriptOps (SimpleInput -> Script
encodeSimpleInput SimpleInput
i) [ScriptOp] -> [ScriptOp] -> [ScriptOp]
forall a. [a] -> [a] -> [a]
++ [ByteString -> ScriptOp
opPushData (ByteString -> ScriptOp) -> ByteString -> ScriptOp
forall a b. (a -> b) -> a -> b
$ ScriptOutput -> ByteString
encodeOutputBS ScriptOutput
o]
encodeInputBS :: ScriptInput -> ByteString
encodeInputBS :: ScriptInput -> ByteString
encodeInputBS = Put -> ByteString
runPutS (Put -> ByteString)
-> (ScriptInput -> Put) -> ScriptInput -> ByteString
forall b c a. (b -> c) -> (a -> b) -> a -> c
. Script -> Put
forall a (m :: * -> *). (Serial a, MonadPut m) => a -> m ()
serialize (Script -> Put) -> (ScriptInput -> Script) -> ScriptInput -> Put
forall b c a. (b -> c) -> (a -> b) -> a -> c
. ScriptInput -> Script
encodeInput
encodeSimpleInput :: SimpleInput -> Script
encodeSimpleInput :: SimpleInput -> Script
encodeSimpleInput s :: SimpleInput
s =
[ScriptOp] -> Script
Script ([ScriptOp] -> Script) -> [ScriptOp] -> Script
forall a b. (a -> b) -> a -> b
$
case SimpleInput
s of
SpendPK ts :: TxSignature
ts -> [TxSignature -> ScriptOp
f TxSignature
ts]
SpendPKHash ts :: TxSignature
ts p :: PubKeyI
p -> [TxSignature -> ScriptOp
f TxSignature
ts, ByteString -> ScriptOp
opPushData (ByteString -> ScriptOp) -> ByteString -> ScriptOp
forall a b. (a -> b) -> a -> b
$ Put -> ByteString
runPutS (Put -> ByteString) -> Put -> ByteString
forall a b. (a -> b) -> a -> b
$ PubKeyI -> Put
forall a (m :: * -> *). (Serial a, MonadPut m) => a -> m ()
serialize PubKeyI
p]
SpendMulSig xs :: [TxSignature]
xs -> ScriptOp
OP_0 ScriptOp -> [ScriptOp] -> [ScriptOp]
forall a. a -> [a] -> [a]
: (TxSignature -> ScriptOp) -> [TxSignature] -> [ScriptOp]
forall a b. (a -> b) -> [a] -> [b]
map TxSignature -> ScriptOp
f [TxSignature]
xs
where
f :: TxSignature -> ScriptOp
f TxSignatureEmpty = ScriptOp
OP_0
f ts :: TxSignature
ts = ByteString -> ScriptOp
opPushData (ByteString -> ScriptOp) -> ByteString -> ScriptOp
forall a b. (a -> b) -> a -> b
$ TxSignature -> ByteString
encodeTxSig TxSignature
ts