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Handle OP_RETURN OP_PUSHDATA2 type output

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This commit is contained in:
Martin Boehm 2021-04-18 15:29:40 +02:00
parent 02369a9cce
commit 538ff0cdcb
2 changed files with 54 additions and 1 deletions
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6
bchain/coins/btc/bitcoinparser.go
View File

@ -4,9 +4,9 @@ import (
"bytes"
"encoding/binary"
"encoding/hex"
"unicode/utf8"
"math/big"
"strconv"
"unicode/utf8"
vlq "github.com/bsm/go-vlq"
"github.com/juju/errors"
@ -140,6 +140,7 @@ func (p *BitcoinParser) TryParseOPReturn(script []byte) string {
// trying 2 variants of OP_RETURN data
// 1) OP_RETURN OP_PUSHDATA1 <datalen> <data>
// 2) OP_RETURN <datalen> <data>
// 3) OP_RETURN OP_PUSHDATA2 <datalenlow> <datalenhigh> <data>
var data []byte
var l int
if script[1] == txscript.OP_PUSHDATA1 && len(script) > 2 {
@ -149,6 +150,9 @@ func (p *BitcoinParser) TryParseOPReturn(script []byte) string {
l = int(script[1])
data = script[2:]
}
} else if script[1] == txscript.OP_PUSHDATA2 && len(script) > 3 {
l = int(script[2]) + int(script[3])<<8
data = script[4:]
} else {
l = int(script[1])
data = script[2:]

49
bchain/coins/btc/bitcoinparser_test.go
View File

@ -208,6 +208,55 @@ func TestGetAddressesFromAddrDesc(t *testing.T) {
want2: false,
wantErr: false,
},
{
name: "OP_RETURN OP_PUSHDATA1 utf8",
args: args{script: "6a31e5bfabe981a9e381ab4254434658e58f96e5bc95e3818ce381a7e3818de3828b5043e3818ce6acb2e38197e38184e38082"},
want: []string{"OP_RETURN (快適にBTCFX取引ができるPCが欲しい。)"},
want2: false,
wantErr: false,
},
{
name: "OP_RETURN OP_PUSHDATA2 ascii",
args: args{script: "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"},
want: []string{`OP_RETURN (We're no strangers to love
You know the rules and so do I
A full commitment's what I'm thinking of
You wouldn't get this from any other guy
I just wanna tell you how I'm feeling
Gotta make you understand
CHORUS
Never gonna give you up,
Never gonna let you down
Never gonna run around and desert you
Never gonna make you cry,
Never gonna say goodbye
Never gonna tell a lie and hurt you
We've known each other for so long
Your heart's been aching but you're too shy to say it
Inside we both know what's been going on
We know the game and we're gonna play it
And if you ask me how I'm feeling
Don't tell me you're too blind to see (CHORUS)
CHORUSCHORUS
(Ooh give you up)
(Ooh give you up)
(Ooh) never gonna give, never gonna give
(give you up)
(Ooh) never gonna give, never gonna give
(give you up)
We've known each other for so long
Your heart's been aching but you're too shy to say it
Inside we both know what's been going on
We know the game and we're gonna play it (TO FRONT)
)`},
want2: false,
wantErr: false,
},
{
name: "OP_RETURN hex",
args: args{script: "6a072020f1686f6a20"},