85 lines
2.6 KiB
Go
85 lines
2.6 KiB
Go
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package claim
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import (
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"encoding/hex"
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"github.com/cockroachdb/errors"
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"github.com/lbryio/lbcd/txscript"
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"github.com/lbryio/lbcutil"
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)
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func ClaimSupportPayoutScript(name, claimid string, address lbcutil.Address) ([]byte, error) {
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//OP_SUPPORT_CLAIM <name> <claimid> OP_2DROP OP_DROP OP_DUP OP_HASH160 <address> OP_EQUALVERIFY OP_CHECKSIG
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pkscript, err := txscript.PayToAddrScript(address)
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if err != nil {
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return nil, errors.WithStack(err)
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}
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bytes, err := hex.DecodeString(claimid)
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if err != nil {
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return nil, errors.WithStack(err)
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}
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return txscript.NewScriptBuilder().
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AddOp(txscript.OP_SUPPORTCLAIM). //OP_SUPPORT_CLAIM
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AddData([]byte(name)). //<name>
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AddData(rev(bytes)). //<claimid>
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AddOp(txscript.OP_2DROP). //OP_2DROP
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AddOp(txscript.OP_DROP). //OP_DROP
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AddOps(pkscript). //OP_DUP OP_HASH160 <address> OP_EQUALVERIFY OP_CHECKSIG
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Script()
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}
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func ClaimNamePayoutScript(name string, value []byte, address lbcutil.Address) ([]byte, error) {
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//OP_CLAIM_NAME <name> <value> OP_2DROP OP_DROP OP_DUP OP_HASH160 <address> OP_EQUALVERIFY OP_CHECKSIG
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pkscript, err := txscript.PayToAddrScript(address)
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if err != nil {
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return nil, errors.WithStack(err)
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}
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return txscript.NewScriptBuilder().
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AddOp(txscript.OP_CLAIMNAME). //OP_CLAIMNAME
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AddData([]byte(name)). //<name>
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AddData(value). //<value>
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AddOp(txscript.OP_2DROP). //OP_2DROP
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AddOp(txscript.OP_DROP). //OP_DROP
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AddOps(pkscript). //OP_DUP OP_HASH160 <address> OP_EQUALVERIFY OP_CHECKSIG
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Script()
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}
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func UpdateClaimPayoutScript(name, claimid string, value []byte, address lbcutil.Address) ([]byte, error) {
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//OP_UPDATE_CLAIM <name> <claimid> <value> OP_2DROP OP_DROP OP_DUP OP_HASH160 <address> OP_EQUALVERIFY OP_CHECKSIG
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pkscript, err := txscript.PayToAddrScript(address)
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if err != nil {
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return nil, errors.WithStack(err)
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}
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bytes, err := hex.DecodeString(claimid)
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if err != nil {
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return nil, errors.WithStack(err)
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}
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return txscript.NewScriptBuilder().
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AddOp(txscript.OP_UPDATECLAIM). //OP_UPDATE_CLAIM
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AddData([]byte(name)). //<name>
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AddData(rev(bytes)). //<claimid>
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AddData(value). //<value>
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AddOp(txscript.OP_2DROP). //OP_2DROP
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AddOp(txscript.OP_DROP). //OP_DROP
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AddOps(pkscript). //OP_DUP OP_HASH160 <address> OP_EQUALVERIFY OP_CHECKSIG
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Script()
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}
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// rev reverses a byte slice. useful for switching endian-ness
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func rev(b []byte) []byte {
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r := make([]byte, len(b))
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for left, right := 0, len(b)-1; left < right; left, right = left+1, right-1 {
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r[left], r[right] = b[right], b[left]
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}
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return r
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}
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