{-# LANGUAGE DeriveGeneric #-}
{-# LANGUAGE GeneralizedNewtypeDeriving #-}
{-# LANGUAGE OverloadedStrings #-}
module Haskoin.Script.SigHash
(
SigHash(..)
, SigHashFlag(..)
, sigHashAll
, sigHashNone
, sigHashSingle
, hasAnyoneCanPayFlag
, hasForkIdFlag
, setAnyoneCanPayFlag
, setForkIdFlag
, isSigHashAll
, isSigHashNone
, isSigHashSingle
, isSigHashUnknown
, sigHashAddForkId
, sigHashGetForkId
, sigHashAddNetworkId
, txSigHash
, txSigHashForkId
, TxSignature(..)
, encodeTxSig
, decodeTxSig
) where
import Control.DeepSeq
import Control.Monad
import qualified Data.Aeson as J
import Data.Bits
import qualified Data.ByteString as BS
import Data.Hashable
import Data.Maybe
import Data.Scientific
import Data.Serialize
import Data.Word
import GHC.Generics (Generic)
import Haskoin.Constants
import Haskoin.Crypto.Hash
import Haskoin.Network.Common
import Haskoin.Crypto
import Haskoin.Script.Common
import Haskoin.Transaction.Common
import Haskoin.Util
data SigHashFlag
= SIGHASH_ALL
| SIGHASH_NONE
| SIGHASH_SINGLE
| SIGHASH_FORKID
| SIGHASH_ANYONECANPAY
deriving (SigHashFlag -> SigHashFlag -> Bool
(SigHashFlag -> SigHashFlag -> Bool)
-> (SigHashFlag -> SigHashFlag -> Bool) -> Eq SigHashFlag
forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
/= :: SigHashFlag -> SigHashFlag -> Bool
$c/= :: SigHashFlag -> SigHashFlag -> Bool
== :: SigHashFlag -> SigHashFlag -> Bool
$c== :: SigHashFlag -> SigHashFlag -> Bool
Eq, Eq SigHashFlag
Eq SigHashFlag =>
(SigHashFlag -> SigHashFlag -> Ordering)
-> (SigHashFlag -> SigHashFlag -> Bool)
-> (SigHashFlag -> SigHashFlag -> Bool)
-> (SigHashFlag -> SigHashFlag -> Bool)
-> (SigHashFlag -> SigHashFlag -> Bool)
-> (SigHashFlag -> SigHashFlag -> SigHashFlag)
-> (SigHashFlag -> SigHashFlag -> SigHashFlag)
-> Ord SigHashFlag
SigHashFlag -> SigHashFlag -> Bool
SigHashFlag -> SigHashFlag -> Ordering
SigHashFlag -> SigHashFlag -> SigHashFlag
forall a.
Eq a =>
(a -> a -> Ordering)
-> (a -> a -> Bool)
-> (a -> a -> Bool)
-> (a -> a -> Bool)
-> (a -> a -> Bool)
-> (a -> a -> a)
-> (a -> a -> a)
-> Ord a
min :: SigHashFlag -> SigHashFlag -> SigHashFlag
$cmin :: SigHashFlag -> SigHashFlag -> SigHashFlag
max :: SigHashFlag -> SigHashFlag -> SigHashFlag
$cmax :: SigHashFlag -> SigHashFlag -> SigHashFlag
>= :: SigHashFlag -> SigHashFlag -> Bool
$c>= :: SigHashFlag -> SigHashFlag -> Bool
> :: SigHashFlag -> SigHashFlag -> Bool
$c> :: SigHashFlag -> SigHashFlag -> Bool
<= :: SigHashFlag -> SigHashFlag -> Bool
$c<= :: SigHashFlag -> SigHashFlag -> Bool
< :: SigHashFlag -> SigHashFlag -> Bool
$c< :: SigHashFlag -> SigHashFlag -> Bool
compare :: SigHashFlag -> SigHashFlag -> Ordering
$ccompare :: SigHashFlag -> SigHashFlag -> Ordering
$cp1Ord :: Eq SigHashFlag
Ord, Int -> SigHashFlag -> ShowS
[SigHashFlag] -> ShowS
SigHashFlag -> String
(Int -> SigHashFlag -> ShowS)
-> (SigHashFlag -> String)
-> ([SigHashFlag] -> ShowS)
-> Show SigHashFlag
forall a.
(Int -> a -> ShowS) -> (a -> String) -> ([a] -> ShowS) -> Show a
showList :: [SigHashFlag] -> ShowS
$cshowList :: [SigHashFlag] -> ShowS
show :: SigHashFlag -> String
$cshow :: SigHashFlag -> String
showsPrec :: Int -> SigHashFlag -> ShowS
$cshowsPrec :: Int -> SigHashFlag -> ShowS
Show, ReadPrec [SigHashFlag]
ReadPrec SigHashFlag
Int -> ReadS SigHashFlag
ReadS [SigHashFlag]
(Int -> ReadS SigHashFlag)
-> ReadS [SigHashFlag]
-> ReadPrec SigHashFlag
-> ReadPrec [SigHashFlag]
-> Read SigHashFlag
forall a.
(Int -> ReadS a)
-> ReadS [a] -> ReadPrec a -> ReadPrec [a] -> Read a
readListPrec :: ReadPrec [SigHashFlag]
$creadListPrec :: ReadPrec [SigHashFlag]
readPrec :: ReadPrec SigHashFlag
$creadPrec :: ReadPrec SigHashFlag
readList :: ReadS [SigHashFlag]
$creadList :: ReadS [SigHashFlag]
readsPrec :: Int -> ReadS SigHashFlag
$creadsPrec :: Int -> ReadS SigHashFlag
Read, (forall x. SigHashFlag -> Rep SigHashFlag x)
-> (forall x. Rep SigHashFlag x -> SigHashFlag)
-> Generic SigHashFlag
forall x. Rep SigHashFlag x -> SigHashFlag
forall x. SigHashFlag -> Rep SigHashFlag x
forall a.
(forall x. a -> Rep a x) -> (forall x. Rep a x -> a) -> Generic a
$cto :: forall x. Rep SigHashFlag x -> SigHashFlag
$cfrom :: forall x. SigHashFlag -> Rep SigHashFlag x
Generic)
instance NFData SigHashFlag
instance Hashable SigHashFlag
instance Enum SigHashFlag where
fromEnum :: SigHashFlag -> Int
fromEnum SIGHASH_ALL = 0x01
fromEnum SIGHASH_NONE = 0x02
fromEnum SIGHASH_SINGLE = 0x03
fromEnum SIGHASH_FORKID = 0x40
fromEnum SIGHASH_ANYONECANPAY = 0x80
toEnum :: Int -> SigHashFlag
toEnum 0x01 = SigHashFlag
SIGHASH_ALL
toEnum 0x02 = SigHashFlag
SIGHASH_NONE
toEnum 0x03 = SigHashFlag
SIGHASH_SINGLE
toEnum 0x40 = SigHashFlag
SIGHASH_FORKID
toEnum 0x80 = SigHashFlag
SIGHASH_ANYONECANPAY
toEnum _ = String -> SigHashFlag
forall a. HasCallStack => String -> a
error "Not a valid sighash flag"
newtype SigHash =
SigHash Word32
deriving ( SigHash -> SigHash -> Bool
(SigHash -> SigHash -> Bool)
-> (SigHash -> SigHash -> Bool) -> Eq SigHash
forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
/= :: SigHash -> SigHash -> Bool
$c/= :: SigHash -> SigHash -> Bool
== :: SigHash -> SigHash -> Bool
$c== :: SigHash -> SigHash -> Bool
Eq
, Eq SigHash
Eq SigHash =>
(SigHash -> SigHash -> Ordering)
-> (SigHash -> SigHash -> Bool)
-> (SigHash -> SigHash -> Bool)
-> (SigHash -> SigHash -> Bool)
-> (SigHash -> SigHash -> Bool)
-> (SigHash -> SigHash -> SigHash)
-> (SigHash -> SigHash -> SigHash)
-> Ord SigHash
SigHash -> SigHash -> Bool
SigHash -> SigHash -> Ordering
SigHash -> SigHash -> SigHash
forall a.
Eq a =>
(a -> a -> Ordering)
-> (a -> a -> Bool)
-> (a -> a -> Bool)
-> (a -> a -> Bool)
-> (a -> a -> Bool)
-> (a -> a -> a)
-> (a -> a -> a)
-> Ord a
min :: SigHash -> SigHash -> SigHash
$cmin :: SigHash -> SigHash -> SigHash
max :: SigHash -> SigHash -> SigHash
$cmax :: SigHash -> SigHash -> SigHash
>= :: SigHash -> SigHash -> Bool
$c>= :: SigHash -> SigHash -> Bool
> :: SigHash -> SigHash -> Bool
$c> :: SigHash -> SigHash -> Bool
<= :: SigHash -> SigHash -> Bool
$c<= :: SigHash -> SigHash -> Bool
< :: SigHash -> SigHash -> Bool
$c< :: SigHash -> SigHash -> Bool
compare :: SigHash -> SigHash -> Ordering
$ccompare :: SigHash -> SigHash -> Ordering
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Ord
, Eq SigHash
SigHash
Eq SigHash =>
(SigHash -> SigHash -> SigHash)
-> (SigHash -> SigHash -> SigHash)
-> (SigHash -> SigHash -> SigHash)
-> (SigHash -> SigHash)
-> (SigHash -> Int -> SigHash)
-> (SigHash -> Int -> SigHash)
-> SigHash
-> (Int -> SigHash)
-> (SigHash -> Int -> SigHash)
-> (SigHash -> Int -> SigHash)
-> (SigHash -> Int -> SigHash)
-> (SigHash -> Int -> Bool)
-> (SigHash -> Maybe Int)
-> (SigHash -> Int)
-> (SigHash -> Bool)
-> (SigHash -> Int -> SigHash)
-> (SigHash -> Int -> SigHash)
-> (SigHash -> Int -> SigHash)
-> (SigHash -> Int -> SigHash)
-> (SigHash -> Int -> SigHash)
-> (SigHash -> Int -> SigHash)
-> (SigHash -> Int)
-> Bits SigHash
Int -> SigHash
SigHash -> Bool
SigHash -> Int
SigHash -> Maybe Int
SigHash -> SigHash
SigHash -> Int -> Bool
SigHash -> Int -> SigHash
SigHash -> SigHash -> SigHash
forall a.
Eq a =>
(a -> a -> a)
-> (a -> a -> a)
-> (a -> a -> a)
-> (a -> a)
-> (a -> Int -> a)
-> (a -> Int -> a)
-> a
-> (Int -> a)
-> (a -> Int -> a)
-> (a -> Int -> a)
-> (a -> Int -> a)
-> (a -> Int -> Bool)
-> (a -> Maybe Int)
-> (a -> Int)
-> (a -> Bool)
-> (a -> Int -> a)
-> (a -> Int -> a)
-> (a -> Int -> a)
-> (a -> Int -> a)
-> (a -> Int -> a)
-> (a -> Int -> a)
-> (a -> Int)
-> Bits a
popCount :: SigHash -> Int
$cpopCount :: SigHash -> Int
rotateR :: SigHash -> Int -> SigHash
$crotateR :: SigHash -> Int -> SigHash
rotateL :: SigHash -> Int -> SigHash
$crotateL :: SigHash -> Int -> SigHash
unsafeShiftR :: SigHash -> Int -> SigHash
$cunsafeShiftR :: SigHash -> Int -> SigHash
shiftR :: SigHash -> Int -> SigHash
$cshiftR :: SigHash -> Int -> SigHash
unsafeShiftL :: SigHash -> Int -> SigHash
$cunsafeShiftL :: SigHash -> Int -> SigHash
shiftL :: SigHash -> Int -> SigHash
$cshiftL :: SigHash -> Int -> SigHash
isSigned :: SigHash -> Bool
$cisSigned :: SigHash -> Bool
bitSize :: SigHash -> Int
$cbitSize :: SigHash -> Int
bitSizeMaybe :: SigHash -> Maybe Int
$cbitSizeMaybe :: SigHash -> Maybe Int
testBit :: SigHash -> Int -> Bool
$ctestBit :: SigHash -> Int -> Bool
complementBit :: SigHash -> Int -> SigHash
$ccomplementBit :: SigHash -> Int -> SigHash
clearBit :: SigHash -> Int -> SigHash
$cclearBit :: SigHash -> Int -> SigHash
setBit :: SigHash -> Int -> SigHash
$csetBit :: SigHash -> Int -> SigHash
bit :: Int -> SigHash
$cbit :: Int -> SigHash
zeroBits :: SigHash
$czeroBits :: SigHash
rotate :: SigHash -> Int -> SigHash
$crotate :: SigHash -> Int -> SigHash
shift :: SigHash -> Int -> SigHash
$cshift :: SigHash -> Int -> SigHash
complement :: SigHash -> SigHash
$ccomplement :: SigHash -> SigHash
xor :: SigHash -> SigHash -> SigHash
$cxor :: SigHash -> SigHash -> SigHash
.|. :: SigHash -> SigHash -> SigHash
$c.|. :: SigHash -> SigHash -> SigHash
.&. :: SigHash -> SigHash -> SigHash
$c.&. :: SigHash -> SigHash -> SigHash
$cp1Bits :: Eq SigHash
Bits
, Int -> SigHash
SigHash -> Int
SigHash -> [SigHash]
SigHash -> SigHash
SigHash -> SigHash -> [SigHash]
SigHash -> SigHash -> SigHash -> [SigHash]
(SigHash -> SigHash)
-> (SigHash -> SigHash)
-> (Int -> SigHash)
-> (SigHash -> Int)
-> (SigHash -> [SigHash])
-> (SigHash -> SigHash -> [SigHash])
-> (SigHash -> SigHash -> [SigHash])
-> (SigHash -> SigHash -> SigHash -> [SigHash])
-> Enum SigHash
forall a.
(a -> a)
-> (a -> a)
-> (Int -> a)
-> (a -> Int)
-> (a -> [a])
-> (a -> a -> [a])
-> (a -> a -> [a])
-> (a -> a -> a -> [a])
-> Enum a
enumFromThenTo :: SigHash -> SigHash -> SigHash -> [SigHash]
$cenumFromThenTo :: SigHash -> SigHash -> SigHash -> [SigHash]
enumFromTo :: SigHash -> SigHash -> [SigHash]
$cenumFromTo :: SigHash -> SigHash -> [SigHash]
enumFromThen :: SigHash -> SigHash -> [SigHash]
$cenumFromThen :: SigHash -> SigHash -> [SigHash]
enumFrom :: SigHash -> [SigHash]
$cenumFrom :: SigHash -> [SigHash]
fromEnum :: SigHash -> Int
$cfromEnum :: SigHash -> Int
toEnum :: Int -> SigHash
$ctoEnum :: Int -> SigHash
pred :: SigHash -> SigHash
$cpred :: SigHash -> SigHash
succ :: SigHash -> SigHash
$csucc :: SigHash -> SigHash
Enum
, Enum SigHash
Real SigHash
(Real SigHash, Enum SigHash) =>
(SigHash -> SigHash -> SigHash)
-> (SigHash -> SigHash -> SigHash)
-> (SigHash -> SigHash -> SigHash)
-> (SigHash -> SigHash -> SigHash)
-> (SigHash -> SigHash -> (SigHash, SigHash))
-> (SigHash -> SigHash -> (SigHash, SigHash))
-> (SigHash -> Integer)
-> Integral SigHash
SigHash -> Integer
SigHash -> SigHash -> (SigHash, SigHash)
SigHash -> SigHash -> SigHash
forall a.
(Real a, Enum a) =>
(a -> a -> a)
-> (a -> a -> a)
-> (a -> a -> a)
-> (a -> a -> a)
-> (a -> a -> (a, a))
-> (a -> a -> (a, a))
-> (a -> Integer)
-> Integral a
toInteger :: SigHash -> Integer
$ctoInteger :: SigHash -> Integer
divMod :: SigHash -> SigHash -> (SigHash, SigHash)
$cdivMod :: SigHash -> SigHash -> (SigHash, SigHash)
quotRem :: SigHash -> SigHash -> (SigHash, SigHash)
$cquotRem :: SigHash -> SigHash -> (SigHash, SigHash)
mod :: SigHash -> SigHash -> SigHash
$cmod :: SigHash -> SigHash -> SigHash
div :: SigHash -> SigHash -> SigHash
$cdiv :: SigHash -> SigHash -> SigHash
rem :: SigHash -> SigHash -> SigHash
$crem :: SigHash -> SigHash -> SigHash
quot :: SigHash -> SigHash -> SigHash
$cquot :: SigHash -> SigHash -> SigHash
$cp2Integral :: Enum SigHash
$cp1Integral :: Real SigHash
Integral
, Integer -> SigHash
SigHash -> SigHash
SigHash -> SigHash -> SigHash
(SigHash -> SigHash -> SigHash)
-> (SigHash -> SigHash -> SigHash)
-> (SigHash -> SigHash -> SigHash)
-> (SigHash -> SigHash)
-> (SigHash -> SigHash)
-> (SigHash -> SigHash)
-> (Integer -> SigHash)
-> Num SigHash
forall a.
(a -> a -> a)
-> (a -> a -> a)
-> (a -> a -> a)
-> (a -> a)
-> (a -> a)
-> (a -> a)
-> (Integer -> a)
-> Num a
fromInteger :: Integer -> SigHash
$cfromInteger :: Integer -> SigHash
signum :: SigHash -> SigHash
$csignum :: SigHash -> SigHash
abs :: SigHash -> SigHash
$cabs :: SigHash -> SigHash
negate :: SigHash -> SigHash
$cnegate :: SigHash -> SigHash
* :: SigHash -> SigHash -> SigHash
$c* :: SigHash -> SigHash -> SigHash
- :: SigHash -> SigHash -> SigHash
$c- :: SigHash -> SigHash -> SigHash
+ :: SigHash -> SigHash -> SigHash
$c+ :: SigHash -> SigHash -> SigHash
Num
, Num SigHash
Ord SigHash
(Num SigHash, Ord SigHash) => (SigHash -> Rational) -> Real SigHash
SigHash -> Rational
forall a. (Num a, Ord a) => (a -> Rational) -> Real a
toRational :: SigHash -> Rational
$ctoRational :: SigHash -> Rational
$cp2Real :: Ord SigHash
$cp1Real :: Num SigHash
Real
, Int -> SigHash -> ShowS
[SigHash] -> ShowS
SigHash -> String
(Int -> SigHash -> ShowS)
-> (SigHash -> String) -> ([SigHash] -> ShowS) -> Show SigHash
forall a.
(Int -> a -> ShowS) -> (a -> String) -> ([a] -> ShowS) -> Show a
showList :: [SigHash] -> ShowS
$cshowList :: [SigHash] -> ShowS
show :: SigHash -> String
$cshow :: SigHash -> String
showsPrec :: Int -> SigHash -> ShowS
$cshowsPrec :: Int -> SigHash -> ShowS
Show
, ReadPrec [SigHash]
ReadPrec SigHash
Int -> ReadS SigHash
ReadS [SigHash]
(Int -> ReadS SigHash)
-> ReadS [SigHash]
-> ReadPrec SigHash
-> ReadPrec [SigHash]
-> Read SigHash
forall a.
(Int -> ReadS a)
-> ReadS [a] -> ReadPrec a -> ReadPrec [a] -> Read a
readListPrec :: ReadPrec [SigHash]
$creadListPrec :: ReadPrec [SigHash]
readPrec :: ReadPrec SigHash
$creadPrec :: ReadPrec SigHash
readList :: ReadS [SigHash]
$creadList :: ReadS [SigHash]
readsPrec :: Int -> ReadS SigHash
$creadsPrec :: Int -> ReadS SigHash
Read
, (forall x. SigHash -> Rep SigHash x)
-> (forall x. Rep SigHash x -> SigHash) -> Generic SigHash
forall x. Rep SigHash x -> SigHash
forall x. SigHash -> Rep SigHash x
forall a.
(forall x. a -> Rep a x) -> (forall x. Rep a x -> a) -> Generic a
$cto :: forall x. Rep SigHash x -> SigHash
$cfrom :: forall x. SigHash -> Rep SigHash x
Generic
, Int -> SigHash -> Int
SigHash -> Int
(Int -> SigHash -> Int) -> (SigHash -> Int) -> Hashable SigHash
forall a. (Int -> a -> Int) -> (a -> Int) -> Hashable a
hash :: SigHash -> Int
$chash :: SigHash -> Int
hashWithSalt :: Int -> SigHash -> Int
$chashWithSalt :: Int -> SigHash -> Int
Hashable
, SigHash -> ()
(SigHash -> ()) -> NFData SigHash
forall a. (a -> ()) -> NFData a
rnf :: SigHash -> ()
$crnf :: SigHash -> ()
NFData
)
instance J.FromJSON SigHash where
parseJSON :: Value -> Parser SigHash
parseJSON =
String -> (Scientific -> Parser SigHash) -> Value -> Parser SigHash
forall a. String -> (Scientific -> Parser a) -> Value -> Parser a
J.withScientific "sighash" ((Scientific -> Parser SigHash) -> Value -> Parser SigHash)
-> (Scientific -> Parser SigHash) -> Value -> Parser SigHash
forall a b. (a -> b) -> a -> b
$
Parser SigHash
-> (Word32 -> Parser SigHash) -> Maybe Word32 -> Parser SigHash
forall b a. b -> (a -> b) -> Maybe a -> b
maybe Parser SigHash
forall (m :: * -> *) a. MonadPlus m => m a
mzero (SigHash -> Parser SigHash
forall (m :: * -> *) a. Monad m => a -> m a
return (SigHash -> Parser SigHash)
-> (Word32 -> SigHash) -> Word32 -> Parser SigHash
forall b c a. (b -> c) -> (a -> b) -> a -> c
. Word32 -> SigHash
SigHash) (Maybe Word32 -> Parser SigHash)
-> (Scientific -> Maybe Word32) -> Scientific -> Parser SigHash
forall b c a. (b -> c) -> (a -> b) -> a -> c
. Scientific -> Maybe Word32
forall i. (Integral i, Bounded i) => Scientific -> Maybe i
toBoundedInteger
instance J.ToJSON SigHash where
toJSON :: SigHash -> Value
toJSON = Scientific -> Value
J.Number (Scientific -> Value)
-> (SigHash -> Scientific) -> SigHash -> Value
forall b c a. (b -> c) -> (a -> b) -> a -> c
. SigHash -> Scientific
forall a b. (Integral a, Num b) => a -> b
fromIntegral
toEncoding :: SigHash -> Encoding
toEncoding (SigHash n :: Word32
n) = Word32 -> Encoding
forall a. ToJSON a => a -> Encoding
J.toEncoding Word32
n
sigHashNone :: SigHash
sigHashNone :: SigHash
sigHashNone = Int -> SigHash
forall a b. (Integral a, Num b) => a -> b
fromIntegral (Int -> SigHash) -> Int -> SigHash
forall a b. (a -> b) -> a -> b
$ SigHashFlag -> Int
forall a. Enum a => a -> Int
fromEnum SigHashFlag
SIGHASH_NONE
sigHashAll :: SigHash
sigHashAll :: SigHash
sigHashAll = Int -> SigHash
forall a b. (Integral a, Num b) => a -> b
fromIntegral (Int -> SigHash) -> Int -> SigHash
forall a b. (a -> b) -> a -> b
$ SigHashFlag -> Int
forall a. Enum a => a -> Int
fromEnum SigHashFlag
SIGHASH_ALL
sigHashSingle :: SigHash
sigHashSingle :: SigHash
sigHashSingle = Int -> SigHash
forall a b. (Integral a, Num b) => a -> b
fromIntegral (Int -> SigHash) -> Int -> SigHash
forall a b. (a -> b) -> a -> b
$ SigHashFlag -> Int
forall a. Enum a => a -> Int
fromEnum SigHashFlag
SIGHASH_SINGLE
sigHashForkId :: SigHash
sigHashForkId :: SigHash
sigHashForkId = Int -> SigHash
forall a b. (Integral a, Num b) => a -> b
fromIntegral (Int -> SigHash) -> Int -> SigHash
forall a b. (a -> b) -> a -> b
$ SigHashFlag -> Int
forall a. Enum a => a -> Int
fromEnum SigHashFlag
SIGHASH_FORKID
sigHashAnyoneCanPay :: SigHash
sigHashAnyoneCanPay :: SigHash
sigHashAnyoneCanPay = Int -> SigHash
forall a b. (Integral a, Num b) => a -> b
fromIntegral (Int -> SigHash) -> Int -> SigHash
forall a b. (a -> b) -> a -> b
$ SigHashFlag -> Int
forall a. Enum a => a -> Int
fromEnum SigHashFlag
SIGHASH_ANYONECANPAY
setForkIdFlag :: SigHash -> SigHash
setForkIdFlag :: SigHash -> SigHash
setForkIdFlag = (SigHash -> SigHash -> SigHash
forall a. Bits a => a -> a -> a
.|. SigHash
sigHashForkId)
setAnyoneCanPayFlag :: SigHash -> SigHash
setAnyoneCanPayFlag :: SigHash -> SigHash
setAnyoneCanPayFlag = (SigHash -> SigHash -> SigHash
forall a. Bits a => a -> a -> a
.|. SigHash
sigHashAnyoneCanPay)
hasForkIdFlag :: SigHash -> Bool
hasForkIdFlag :: SigHash -> Bool
hasForkIdFlag = (SigHash -> SigHash -> Bool
forall a. Eq a => a -> a -> Bool
/= 0) (SigHash -> Bool) -> (SigHash -> SigHash) -> SigHash -> Bool
forall b c a. (b -> c) -> (a -> b) -> a -> c
. (SigHash -> SigHash -> SigHash
forall a. Bits a => a -> a -> a
.&. SigHash
sigHashForkId)
hasAnyoneCanPayFlag :: SigHash -> Bool
hasAnyoneCanPayFlag :: SigHash -> Bool
hasAnyoneCanPayFlag = (SigHash -> SigHash -> Bool
forall a. Eq a => a -> a -> Bool
/= 0) (SigHash -> Bool) -> (SigHash -> SigHash) -> SigHash -> Bool
forall b c a. (b -> c) -> (a -> b) -> a -> c
. (SigHash -> SigHash -> SigHash
forall a. Bits a => a -> a -> a
.&. SigHash
sigHashAnyoneCanPay)
isSigHashAll :: SigHash -> Bool
isSigHashAll :: SigHash -> Bool
isSigHashAll = (SigHash -> SigHash -> Bool
forall a. Eq a => a -> a -> Bool
== SigHash
sigHashAll) (SigHash -> Bool) -> (SigHash -> SigHash) -> SigHash -> Bool
forall b c a. (b -> c) -> (a -> b) -> a -> c
. (SigHash -> SigHash -> SigHash
forall a. Bits a => a -> a -> a
.&. 0x1f)
isSigHashNone :: SigHash -> Bool
isSigHashNone :: SigHash -> Bool
isSigHashNone = (SigHash -> SigHash -> Bool
forall a. Eq a => a -> a -> Bool
== SigHash
sigHashNone) (SigHash -> Bool) -> (SigHash -> SigHash) -> SigHash -> Bool
forall b c a. (b -> c) -> (a -> b) -> a -> c
. (SigHash -> SigHash -> SigHash
forall a. Bits a => a -> a -> a
.&. 0x1f)
isSigHashSingle :: SigHash -> Bool
isSigHashSingle :: SigHash -> Bool
isSigHashSingle = (SigHash -> SigHash -> Bool
forall a. Eq a => a -> a -> Bool
== SigHash
sigHashSingle) (SigHash -> Bool) -> (SigHash -> SigHash) -> SigHash -> Bool
forall b c a. (b -> c) -> (a -> b) -> a -> c
. (SigHash -> SigHash -> SigHash
forall a. Bits a => a -> a -> a
.&. 0x1f)
isSigHashUnknown :: SigHash -> Bool
isSigHashUnknown :: SigHash -> Bool
isSigHashUnknown =
(SigHash -> [SigHash] -> Bool
forall (t :: * -> *) a. (Foldable t, Eq a) => a -> t a -> Bool
`notElem` [SigHash
sigHashAll, SigHash
sigHashNone, SigHash
sigHashSingle]) (SigHash -> Bool) -> (SigHash -> SigHash) -> SigHash -> Bool
forall b c a. (b -> c) -> (a -> b) -> a -> c
. (SigHash -> SigHash -> SigHash
forall a. Bits a => a -> a -> a
.&. 0x1f)
sigHashAddForkId :: SigHash -> Word32 -> SigHash
sigHashAddForkId :: SigHash -> Word32 -> SigHash
sigHashAddForkId sh :: SigHash
sh w :: Word32
w = (Word32 -> SigHash
forall a b. (Integral a, Num b) => a -> b
fromIntegral Word32
w SigHash -> Int -> SigHash
forall a. Bits a => a -> Int -> a
`shiftL` 8) SigHash -> SigHash -> SigHash
forall a. Bits a => a -> a -> a
.|. (SigHash
sh SigHash -> SigHash -> SigHash
forall a. Bits a => a -> a -> a
.&. 0x000000ff)
sigHashAddNetworkId :: Network -> SigHash -> SigHash
sigHashAddNetworkId :: Network -> SigHash -> SigHash
sigHashAddNetworkId net :: Network
net =
(SigHash -> Word32 -> SigHash
`sigHashAddForkId` Word32 -> Maybe Word32 -> Word32
forall a. a -> Maybe a -> a
fromMaybe 0 (Network -> Maybe Word32
getSigHashForkId Network
net))
sigHashGetForkId :: SigHash -> Word32
sigHashGetForkId :: SigHash -> Word32
sigHashGetForkId (SigHash n :: Word32
n) = Word32 -> Word32
forall a b. (Integral a, Num b) => a -> b
fromIntegral (Word32 -> Word32) -> Word32 -> Word32
forall a b. (a -> b) -> a -> b
$ Word32
n Word32 -> Int -> Word32
forall a. Bits a => a -> Int -> a
`shiftR` 8
txSigHash :: Network
-> Tx
-> Script
-> Word64
-> Int
-> SigHash
-> Hash256
txSigHash :: Network -> Tx -> Script -> Word64 -> Int -> SigHash -> Hash256
txSigHash net :: Network
net tx :: Tx
tx out :: Script
out v :: Word64
v i :: Int
i sh :: SigHash
sh
| SigHash -> Bool
hasForkIdFlag SigHash
sh Bool -> Bool -> Bool
&& Maybe Word32 -> Bool
forall a. Maybe a -> Bool
isJust (Network -> Maybe Word32
getSigHashForkId Network
net) =
Network -> Tx -> Script -> Word64 -> Int -> SigHash -> Hash256
txSigHashForkId Network
net Tx
tx Script
out Word64
v Int
i SigHash
sh
| Bool
otherwise = do
let newIn :: [TxIn]
newIn = [TxIn] -> Script -> Int -> SigHash -> [TxIn]
buildInputs (Tx -> [TxIn]
txIn Tx
tx) Script
fout Int
i SigHash
sh
Hash256 -> Maybe Hash256 -> Hash256
forall a. a -> Maybe a -> a
fromMaybe Hash256
one (Maybe Hash256 -> Hash256) -> Maybe Hash256 -> Hash256
forall a b. (a -> b) -> a -> b
$ do
[TxOut]
newOut <- [TxOut] -> Int -> SigHash -> Maybe [TxOut]
buildOutputs (Tx -> [TxOut]
txOut Tx
tx) Int
i SigHash
sh
let newTx :: Tx
newTx = Word32 -> [TxIn] -> [TxOut] -> WitnessData -> Word32 -> Tx
Tx (Tx -> Word32
txVersion Tx
tx) [TxIn]
newIn [TxOut]
newOut [] (Tx -> Word32
txLockTime Tx
tx)
Hash256 -> Maybe Hash256
forall (m :: * -> *) a. Monad m => a -> m a
return (Hash256 -> Maybe Hash256) -> Hash256 -> Maybe Hash256
forall a b. (a -> b) -> a -> b
$
ByteString -> Hash256
forall b. ByteArrayAccess b => b -> Hash256
doubleSHA256 (ByteString -> Hash256) -> ByteString -> Hash256
forall a b. (a -> b) -> a -> b
$
Put -> ByteString
runPut (Put -> ByteString) -> Put -> ByteString
forall a b. (a -> b) -> a -> b
$ do
Putter Tx
forall t. Serialize t => Putter t
put Tx
newTx
Putter Word32
putWord32le Putter Word32 -> Putter Word32
forall a b. (a -> b) -> a -> b
$ SigHash -> Word32
forall a b. (Integral a, Num b) => a -> b
fromIntegral SigHash
sh
where
fout :: Script
fout = [ScriptOp] -> Script
Script ([ScriptOp] -> Script) -> [ScriptOp] -> Script
forall a b. (a -> b) -> a -> b
$ (ScriptOp -> Bool) -> [ScriptOp] -> [ScriptOp]
forall a. (a -> Bool) -> [a] -> [a]
filter (ScriptOp -> ScriptOp -> Bool
forall a. Eq a => a -> a -> Bool
/= ScriptOp
OP_CODESEPARATOR) ([ScriptOp] -> [ScriptOp]) -> [ScriptOp] -> [ScriptOp]
forall a b. (a -> b) -> a -> b
$ Script -> [ScriptOp]
scriptOps Script
out
one :: Hash256
one = "0100000000000000000000000000000000000000000000000000000000000000"
buildInputs :: [TxIn] -> Script -> Int -> SigHash -> [TxIn]
buildInputs :: [TxIn] -> Script -> Int -> SigHash -> [TxIn]
buildInputs txins :: [TxIn]
txins out :: Script
out i :: Int
i sh :: SigHash
sh
| SigHash -> Bool
hasAnyoneCanPayFlag SigHash
sh =
[ ([TxIn]
txins [TxIn] -> Int -> TxIn
forall a. [a] -> Int -> a
!! Int
i) { scriptInput :: ByteString
scriptInput = Script -> ByteString
forall a. Serialize a => a -> ByteString
encode Script
out } ]
| SigHash -> Bool
isSigHashAll SigHash
sh Bool -> Bool -> Bool
|| SigHash -> Bool
isSigHashUnknown SigHash
sh = [TxIn]
single
| Bool
otherwise = (TxIn -> Int -> TxIn) -> [TxIn] -> [Int] -> [TxIn]
forall a b c. (a -> b -> c) -> [a] -> [b] -> [c]
zipWith TxIn -> Int -> TxIn
noSeq [TxIn]
single [0 ..]
where
emptyIn :: [TxIn]
emptyIn = (TxIn -> TxIn) -> [TxIn] -> [TxIn]
forall a b. (a -> b) -> [a] -> [b]
map (\ti :: TxIn
ti -> TxIn
ti { scriptInput :: ByteString
scriptInput = ByteString
BS.empty }) [TxIn]
txins
single :: [TxIn]
single =
Int -> [TxIn] -> (TxIn -> TxIn) -> [TxIn]
forall a. Int -> [a] -> (a -> a) -> [a]
updateIndex Int
i [TxIn]
emptyIn ((TxIn -> TxIn) -> [TxIn]) -> (TxIn -> TxIn) -> [TxIn]
forall a b. (a -> b) -> a -> b
$ \ti :: TxIn
ti -> TxIn
ti { scriptInput :: ByteString
scriptInput = Script -> ByteString
forall a. Serialize a => a -> ByteString
encode Script
out }
noSeq :: TxIn -> Int -> TxIn
noSeq ti :: TxIn
ti j :: Int
j =
if Int
i Int -> Int -> Bool
forall a. Eq a => a -> a -> Bool
== Int
j
then TxIn
ti
else TxIn
ti { txInSequence :: Word32
txInSequence = 0 }
buildOutputs :: [TxOut] -> Int -> SigHash -> Maybe [TxOut]
buildOutputs :: [TxOut] -> Int -> SigHash -> Maybe [TxOut]
buildOutputs txos :: [TxOut]
txos i :: Int
i sh :: SigHash
sh
| SigHash -> Bool
isSigHashAll SigHash
sh Bool -> Bool -> Bool
|| SigHash -> Bool
isSigHashUnknown SigHash
sh = [TxOut] -> Maybe [TxOut]
forall (m :: * -> *) a. Monad m => a -> m a
return [TxOut]
txos
| SigHash -> Bool
isSigHashNone SigHash
sh = [TxOut] -> Maybe [TxOut]
forall (m :: * -> *) a. Monad m => a -> m a
return []
| Int
i Int -> Int -> Bool
forall a. Ord a => a -> a -> Bool
>= [TxOut] -> Int
forall (t :: * -> *) a. Foldable t => t a -> Int
length [TxOut]
txos = Maybe [TxOut]
forall a. Maybe a
Nothing
| Bool
otherwise = [TxOut] -> Maybe [TxOut]
forall (m :: * -> *) a. Monad m => a -> m a
return ([TxOut] -> Maybe [TxOut]) -> [TxOut] -> Maybe [TxOut]
forall a b. (a -> b) -> a -> b
$ [TxOut]
buffer [TxOut] -> [TxOut] -> [TxOut]
forall a. [a] -> [a] -> [a]
++ [[TxOut]
txos [TxOut] -> Int -> TxOut
forall a. [a] -> Int -> a
!! Int
i]
where
buffer :: [TxOut]
buffer = Int -> TxOut -> [TxOut]
forall a. Int -> a -> [a]
replicate Int
i (TxOut -> [TxOut]) -> TxOut -> [TxOut]
forall a b. (a -> b) -> a -> b
$ Word64 -> ByteString -> TxOut
TxOut Word64
forall a. Bounded a => a
maxBound ByteString
BS.empty
txSigHashForkId
:: Network
-> Tx
-> Script
-> Word64
-> Int
-> SigHash
-> Hash256
txSigHashForkId :: Network -> Tx -> Script -> Word64 -> Int -> SigHash -> Hash256
txSigHashForkId net :: Network
net tx :: Tx
tx out :: Script
out v :: Word64
v i :: Int
i sh :: SigHash
sh =
ByteString -> Hash256
forall b. ByteArrayAccess b => b -> Hash256
doubleSHA256 (ByteString -> Hash256) -> (Put -> ByteString) -> Put -> Hash256
forall b c a. (b -> c) -> (a -> b) -> a -> c
. Put -> ByteString
runPut (Put -> Hash256) -> Put -> Hash256
forall a b. (a -> b) -> a -> b
$ do
Putter Word32
putWord32le Putter Word32 -> Putter Word32
forall a b. (a -> b) -> a -> b
$ Tx -> Word32
txVersion Tx
tx
Putter Hash256
forall t. Serialize t => Putter t
put Hash256
hashPrevouts
Putter Hash256
forall t. Serialize t => Putter t
put Hash256
hashSequence
Putter OutPoint
forall t. Serialize t => Putter t
put Putter OutPoint -> Putter OutPoint
forall a b. (a -> b) -> a -> b
$ TxIn -> OutPoint
prevOutput (TxIn -> OutPoint) -> TxIn -> OutPoint
forall a b. (a -> b) -> a -> b
$ Tx -> [TxIn]
txIn Tx
tx [TxIn] -> Int -> TxIn
forall a. [a] -> Int -> a
!! Int
i
Script -> Put
forall t. Serialize t => Putter t
putScript Script
out
Putter Word64
putWord64le Word64
v
Putter Word32
putWord32le Putter Word32 -> Putter Word32
forall a b. (a -> b) -> a -> b
$ TxIn -> Word32
txInSequence (TxIn -> Word32) -> TxIn -> Word32
forall a b. (a -> b) -> a -> b
$ Tx -> [TxIn]
txIn Tx
tx [TxIn] -> Int -> TxIn
forall a. [a] -> Int -> a
!! Int
i
Putter Hash256
forall t. Serialize t => Putter t
put Hash256
hashOutputs
Putter Word32
putWord32le Putter Word32 -> Putter Word32
forall a b. (a -> b) -> a -> b
$ Tx -> Word32
txLockTime Tx
tx
Putter Word32
putWord32le Putter Word32 -> Putter Word32
forall a b. (a -> b) -> a -> b
$ SigHash -> Word32
forall a b. (Integral a, Num b) => a -> b
fromIntegral (SigHash -> Word32) -> SigHash -> Word32
forall a b. (a -> b) -> a -> b
$ Network -> SigHash -> SigHash
sigHashAddNetworkId Network
net SigHash
sh
where
hashPrevouts :: Hash256
hashPrevouts
| Bool -> Bool
not (Bool -> Bool) -> Bool -> Bool
forall a b. (a -> b) -> a -> b
$ SigHash -> Bool
hasAnyoneCanPayFlag SigHash
sh =
ByteString -> Hash256
forall b. ByteArrayAccess b => b -> Hash256
doubleSHA256 (ByteString -> Hash256) -> ByteString -> Hash256
forall a b. (a -> b) -> a -> b
$ Put -> ByteString
runPut (Put -> ByteString) -> Put -> ByteString
forall a b. (a -> b) -> a -> b
$ (TxIn -> Put) -> [TxIn] -> Put
forall (t :: * -> *) (m :: * -> *) a b.
(Foldable t, Monad m) =>
(a -> m b) -> t a -> m ()
mapM_ (Putter OutPoint
forall t. Serialize t => Putter t
put Putter OutPoint -> (TxIn -> OutPoint) -> TxIn -> Put
forall b c a. (b -> c) -> (a -> b) -> a -> c
. TxIn -> OutPoint
prevOutput) ([TxIn] -> Put) -> [TxIn] -> Put
forall a b. (a -> b) -> a -> b
$ Tx -> [TxIn]
txIn Tx
tx
| Bool
otherwise = Hash256
zeros
hashSequence :: Hash256
hashSequence
| Bool -> Bool
not (SigHash -> Bool
hasAnyoneCanPayFlag SigHash
sh) Bool -> Bool -> Bool
&&
Bool -> Bool
not (SigHash -> Bool
isSigHashSingle SigHash
sh) Bool -> Bool -> Bool
&& Bool -> Bool
not (SigHash -> Bool
isSigHashNone SigHash
sh) =
ByteString -> Hash256
forall b. ByteArrayAccess b => b -> Hash256
doubleSHA256 (ByteString -> Hash256) -> ByteString -> Hash256
forall a b. (a -> b) -> a -> b
$ Put -> ByteString
runPut (Put -> ByteString) -> Put -> ByteString
forall a b. (a -> b) -> a -> b
$ (TxIn -> Put) -> [TxIn] -> Put
forall (t :: * -> *) (m :: * -> *) a b.
(Foldable t, Monad m) =>
(a -> m b) -> t a -> m ()
mapM_ (Putter Word32
putWord32le Putter Word32 -> (TxIn -> Word32) -> TxIn -> Put
forall b c a. (b -> c) -> (a -> b) -> a -> c
. TxIn -> Word32
txInSequence) ([TxIn] -> Put) -> [TxIn] -> Put
forall a b. (a -> b) -> a -> b
$ Tx -> [TxIn]
txIn Tx
tx
| Bool
otherwise = Hash256
zeros
hashOutputs :: Hash256
hashOutputs
| Bool -> Bool
not (SigHash -> Bool
isSigHashSingle SigHash
sh) Bool -> Bool -> Bool
&& Bool -> Bool
not (SigHash -> Bool
isSigHashNone SigHash
sh) =
ByteString -> Hash256
forall b. ByteArrayAccess b => b -> Hash256
doubleSHA256 (ByteString -> Hash256) -> ByteString -> Hash256
forall a b. (a -> b) -> a -> b
$ Put -> ByteString
runPut (Put -> ByteString) -> Put -> ByteString
forall a b. (a -> b) -> a -> b
$ (TxOut -> Put) -> [TxOut] -> Put
forall (t :: * -> *) (m :: * -> *) a b.
(Foldable t, Monad m) =>
(a -> m b) -> t a -> m ()
mapM_ TxOut -> Put
forall t. Serialize t => Putter t
put ([TxOut] -> Put) -> [TxOut] -> Put
forall a b. (a -> b) -> a -> b
$ Tx -> [TxOut]
txOut Tx
tx
| SigHash -> Bool
isSigHashSingle SigHash
sh Bool -> Bool -> Bool
&& Int
i Int -> Int -> Bool
forall a. Ord a => a -> a -> Bool
< [TxOut] -> Int
forall (t :: * -> *) a. Foldable t => t a -> Int
length (Tx -> [TxOut]
txOut Tx
tx) =
ByteString -> Hash256
forall b. ByteArrayAccess b => b -> Hash256
doubleSHA256 (ByteString -> Hash256) -> ByteString -> Hash256
forall a b. (a -> b) -> a -> b
$ TxOut -> ByteString
forall a. Serialize a => a -> ByteString
encode (TxOut -> ByteString) -> TxOut -> ByteString
forall a b. (a -> b) -> a -> b
$ Tx -> [TxOut]
txOut Tx
tx [TxOut] -> Int -> TxOut
forall a. [a] -> Int -> a
!! Int
i
| Bool
otherwise = Hash256
zeros
putScript :: a -> Put
putScript s :: a
s = do
let encodedScript :: ByteString
encodedScript = a -> ByteString
forall a. Serialize a => a -> ByteString
encode a
s
Int -> Put
forall a. Integral a => a -> Put
putVarInt (Int -> Put) -> Int -> Put
forall a b. (a -> b) -> a -> b
$ ByteString -> Int
BS.length ByteString
encodedScript
Putter ByteString
putByteString ByteString
encodedScript
zeros :: Hash256
zeros :: Hash256
zeros = "0000000000000000000000000000000000000000000000000000000000000000"
data TxSignature
= TxSignature
{ TxSignature -> Sig
txSignature :: !Sig
, TxSignature -> SigHash
txSignatureSigHash :: !SigHash
}
| TxSignatureEmpty
deriving (TxSignature -> TxSignature -> Bool
(TxSignature -> TxSignature -> Bool)
-> (TxSignature -> TxSignature -> Bool) -> Eq TxSignature
forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
/= :: TxSignature -> TxSignature -> Bool
$c/= :: TxSignature -> TxSignature -> Bool
== :: TxSignature -> TxSignature -> Bool
$c== :: TxSignature -> TxSignature -> Bool
Eq, Int -> TxSignature -> ShowS
[TxSignature] -> ShowS
TxSignature -> String
(Int -> TxSignature -> ShowS)
-> (TxSignature -> String)
-> ([TxSignature] -> ShowS)
-> Show TxSignature
forall a.
(Int -> a -> ShowS) -> (a -> String) -> ([a] -> ShowS) -> Show a
showList :: [TxSignature] -> ShowS
$cshowList :: [TxSignature] -> ShowS
show :: TxSignature -> String
$cshow :: TxSignature -> String
showsPrec :: Int -> TxSignature -> ShowS
$cshowsPrec :: Int -> TxSignature -> ShowS
Show, (forall x. TxSignature -> Rep TxSignature x)
-> (forall x. Rep TxSignature x -> TxSignature)
-> Generic TxSignature
forall x. Rep TxSignature x -> TxSignature
forall x. TxSignature -> Rep TxSignature x
forall a.
(forall x. a -> Rep a x) -> (forall x. Rep a x -> a) -> Generic a
$cto :: forall x. Rep TxSignature x -> TxSignature
$cfrom :: forall x. TxSignature -> Rep TxSignature x
Generic)
instance NFData TxSignature
encodeTxSig :: TxSignature -> BS.ByteString
encodeTxSig :: TxSignature -> ByteString
encodeTxSig TxSignatureEmpty = String -> ByteString
forall a. HasCallStack => String -> a
error "Can not encode an empty signature"
encodeTxSig (TxSignature sig :: Sig
sig (SigHash n :: Word32
n)) =
Put -> ByteString
runPut (Put -> ByteString) -> Put -> ByteString
forall a b. (a -> b) -> a -> b
$ Putter Sig
putSig Sig
sig Put -> Put -> Put
forall (m :: * -> *) a b. Monad m => m a -> m b -> m b
>> Putter Word8
putWord8 (Word32 -> Word8
forall a b. (Integral a, Num b) => a -> b
fromIntegral Word32
n)
decodeTxSig :: Network -> BS.ByteString -> Either String TxSignature
decodeTxSig :: Network -> ByteString -> Either String TxSignature
decodeTxSig _ bs :: ByteString
bs | ByteString -> Bool
BS.null ByteString
bs = String -> Either String TxSignature
forall a b. a -> Either a b
Left "Empty signature candidate"
decodeTxSig net :: Network
net bs :: ByteString
bs =
case ByteString -> Maybe Sig
decodeStrictSig (ByteString -> Maybe Sig) -> ByteString -> Maybe Sig
forall a b. (a -> b) -> a -> b
$ ByteString -> ByteString
BS.init ByteString
bs of
Just sig :: Sig
sig -> do
let sh :: SigHash
sh = Word8 -> SigHash
forall a b. (Integral a, Num b) => a -> b
fromIntegral (Word8 -> SigHash) -> Word8 -> SigHash
forall a b. (a -> b) -> a -> b
$ ByteString -> Word8
BS.last ByteString
bs
Bool -> Either String () -> Either String ()
forall (f :: * -> *). Applicative f => Bool -> f () -> f ()
when (SigHash -> Bool
isSigHashUnknown SigHash
sh) (Either String () -> Either String ())
-> Either String () -> Either String ()
forall a b. (a -> b) -> a -> b
$
String -> Either String ()
forall a b. a -> Either a b
Left "Non-canonical signature: unknown hashtype byte"
Bool -> Either String () -> Either String ()
forall (f :: * -> *). Applicative f => Bool -> f () -> f ()
when (Maybe Word32 -> Bool
forall a. Maybe a -> Bool
isNothing (Network -> Maybe Word32
getSigHashForkId Network
net) Bool -> Bool -> Bool
&& SigHash -> Bool
hasForkIdFlag SigHash
sh) (Either String () -> Either String ())
-> Either String () -> Either String ()
forall a b. (a -> b) -> a -> b
$
String -> Either String ()
forall a b. a -> Either a b
Left "Non-canonical signature: invalid network for forkId"
TxSignature -> Either String TxSignature
forall (m :: * -> *) a. Monad m => a -> m a
return (TxSignature -> Either String TxSignature)
-> TxSignature -> Either String TxSignature
forall a b. (a -> b) -> a -> b
$ Sig -> SigHash -> TxSignature
TxSignature Sig
sig SigHash
sh
Nothing -> String -> Either String TxSignature
forall a b. a -> Either a b
Left "Non-canonical signature: could not parse signature"