69 lines
2.0 KiB
Go
69 lines
2.0 KiB
Go
package main
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import (
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"encoding/hex"
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"errors"
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"fmt"
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"strconv"
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"strings"
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"github.com/btcsuite/btcd/chaincfg/chainhash"
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"github.com/lightningnetwork/lnd/lnrpc"
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)
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// OutPoint displays an outpoint string in the form "<txid>:<output-index>".
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type OutPoint string
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// NewOutPointFromProto formats the lnrpc.OutPoint into an OutPoint for display.
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func NewOutPointFromProto(op *lnrpc.OutPoint) OutPoint {
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var hash chainhash.Hash
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copy(hash[:], op.TxidBytes)
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return OutPoint(fmt.Sprintf("%v:%d", hash, op.OutputIndex))
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}
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// NewProtoOutPoint parses an OutPoint into its corresponding lnrpc.OutPoint
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// type.
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func NewProtoOutPoint(op string) (*lnrpc.OutPoint, error) {
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parts := strings.Split(op, ":")
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if len(parts) != 2 {
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return nil, errors.New("outpoint should be of the form txid:index")
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}
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txid := parts[0]
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if hex.DecodedLen(len(txid)) != chainhash.HashSize {
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return nil, fmt.Errorf("invalid hex-encoded txid %v", txid)
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}
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outputIndex, err := strconv.Atoi(parts[1])
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if err != nil {
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return nil, fmt.Errorf("invalid output index: %v", err)
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}
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return &lnrpc.OutPoint{
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TxidStr: txid,
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OutputIndex: uint32(outputIndex),
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}, nil
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}
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// Utxo displays information about an unspent output, including its address,
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// amount, pkscript, and confirmations.
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type Utxo struct {
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Type lnrpc.AddressType `json:"address_type"`
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Address string `json:"address"`
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AmountSat int64 `json:"amount_sat"`
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PkScript string `json:"pk_script"`
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OutPoint OutPoint `json:"outpoint"`
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Confirmations int64 `json:"confirmations"`
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}
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// NewUtxoFromProto creates a display Utxo from the Utxo proto. This filters out
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// the raw txid bytes from the provided outpoint, which will otherwise be
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// printed in base64.
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func NewUtxoFromProto(utxo *lnrpc.Utxo) *Utxo {
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return &Utxo{
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Type: utxo.AddressType,
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Address: utxo.Address,
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AmountSat: utxo.AmountSat,
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PkScript: utxo.PkScript,
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OutPoint: NewOutPointFromProto(utxo.Outpoint),
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Confirmations: utxo.Confirmations,
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}
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}
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