lbry.go/lbrycrd/script.go
2019-08-14 00:44:27 -04:00

76 lines
2.3 KiB
Go

package lbrycrd
import (
"encoding/hex"
"github.com/lbryio/lbry.go/extras/errors"
"github.com/btcsuite/btcd/txscript"
"github.com/btcsuite/btcutil"
)
func getClaimSupportPayoutScript(name, claimid string, address btcutil.Address) ([]byte, error) {
//OP_SUPPORT_CLAIM <name> <claimid> OP_2DROP OP_DROP OP_DUP OP_HASH160 <address> OP_EQUALVERIFY OP_CHECKSIG
pkscript, err := txscript.PayToAddrScript(address)
if err != nil {
return nil, errors.Err(err)
}
bytes, err := hex.DecodeString(claimid)
if err != nil {
return nil, errors.Err(err)
}
return txscript.NewScriptBuilder().
AddOp(txscript.OP_NOP7). //OP_SUPPORT_CLAIM
AddData([]byte(name)). //<name>
AddData(rev(bytes)). //<claimid>
AddOp(txscript.OP_2DROP). //OP_2DROP
AddOp(txscript.OP_DROP). //OP_DROP
AddOps(pkscript). //OP_DUP OP_HASH160 <address> OP_EQUALVERIFY OP_CHECKSIG
Script()
}
func getClaimNamePayoutScript(name string, value []byte, address btcutil.Address) ([]byte, error) {
//OP_CLAIM_NAME <name> <value> OP_2DROP OP_DROP OP_DUP OP_HASH160 <address> OP_EQUALVERIFY OP_CHECKSIG
pkscript, err := txscript.PayToAddrScript(address)
if err != nil {
return nil, errors.Err(err)
}
return txscript.NewScriptBuilder().
AddOp(txscript.OP_NOP6). //OP_CLAIMNAME
AddData([]byte(name)). //<name>
AddData(value). //<value>
AddOp(txscript.OP_2DROP). //OP_2DROP
AddOp(txscript.OP_DROP). //OP_DROP
AddOps(pkscript). //OP_DUP OP_HASH160 <address> OP_EQUALVERIFY OP_CHECKSIG
Script()
}
func getUpdateClaimPayoutScript(name, claimid string, value []byte, address btcutil.Address) ([]byte, error) {
//OP_UPDATE_CLAIM <name> <claimid> <value> OP_2DROP OP_DROP OP_DUP OP_HASH160 <address> OP_EQUALVERIFY OP_CHECKSIG
pkscript, err := txscript.PayToAddrScript(address)
if err != nil {
return nil, errors.Err(err)
}
bytes, err := hex.DecodeString(claimid)
if err != nil {
return nil, errors.Err(err)
}
return txscript.NewScriptBuilder().
AddOp(txscript.OP_NOP8). //OP_UPDATE_CLAIM
AddData([]byte(name)). //<name>
AddData(rev(bytes)). //<claimid>
AddData(value). //<value>
AddOp(txscript.OP_2DROP). //OP_2DROP
AddOp(txscript.OP_DROP). //OP_DROP
AddOps(pkscript). //OP_DUP OP_HASH160 <address> OP_EQUALVERIFY OP_CHECKSIG
Script()
}