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224 lines
4.8 KiB
Go
224 lines
4.8 KiB
Go
package main
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import (
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"context"
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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/lightninglabs/loop/looprpc"
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"github.com/urfave/cli"
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)
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var staticAddressCommands = cli.Command{
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Name: "static",
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ShortName: "s",
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Usage: "manage static loop-in addresses",
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Category: "StaticAddress",
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Subcommands: []cli.Command{
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newStaticAddressCommand,
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listUnspentCommand,
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withdrawalCommand,
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},
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}
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var newStaticAddressCommand = cli.Command{
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Name: "new",
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ShortName: "n",
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Usage: "Create a new static loop in address.",
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Description: `
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Requests a new static loop in address from the server. Funds that are
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sent to this address will be locked by a 2:2 multisig between us and the
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loop server, or a timeout path that we can sweep once it opens up. The
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funds can either be cooperatively spent with a signature from the server
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or looped in.
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`,
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Action: newStaticAddress,
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}
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func newStaticAddress(ctx *cli.Context) error {
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ctxb := context.Background()
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if ctx.NArg() > 0 {
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return cli.ShowCommandHelp(ctx, "new")
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}
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client, cleanup, err := getClient(ctx)
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if err != nil {
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return err
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}
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defer cleanup()
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resp, err := client.NewStaticAddress(
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ctxb, &looprpc.NewStaticAddressRequest{},
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)
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if err != nil {
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return err
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}
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fmt.Printf("Received a new static loop-in address from the server: "+
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"%s\n", resp.Address)
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return nil
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}
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var listUnspentCommand = cli.Command{
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Name: "listunspent",
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ShortName: "l",
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Usage: "List unspent static address outputs.",
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Description: `
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List all unspent static address outputs.
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`,
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Flags: []cli.Flag{
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cli.IntFlag{
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Name: "min_confs",
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Usage: "The minimum amount of confirmations an " +
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"output should have to be listed.",
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},
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cli.IntFlag{
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Name: "max_confs",
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Usage: "The maximum number of confirmations an " +
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"output could have to be listed.",
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},
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},
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Action: listUnspent,
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}
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func listUnspent(ctx *cli.Context) error {
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ctxb := context.Background()
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if ctx.NArg() > 0 {
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return cli.ShowCommandHelp(ctx, "listunspent")
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}
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client, cleanup, err := getClient(ctx)
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if err != nil {
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return err
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}
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defer cleanup()
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resp, err := client.ListUnspentDeposits(
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ctxb, &looprpc.ListUnspentDepositsRequest{
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MinConfs: int32(ctx.Int("min_confs")),
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MaxConfs: int32(ctx.Int("max_confs")),
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})
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if err != nil {
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return err
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}
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printRespJSON(resp)
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return nil
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}
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var withdrawalCommand = cli.Command{
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Name: "withdraw",
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ShortName: "w",
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Usage: "Withdraw from static address deposits.",
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Description: `
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Withdraws from all or selected static address deposits by sweeping them
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back to our lnd wallet.
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`,
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Flags: []cli.Flag{
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cli.StringSliceFlag{
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Name: "utxo",
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Usage: "specify utxos as outpoints(tx:idx) which will" +
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"be closed.",
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},
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cli.BoolFlag{
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Name: "all",
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Usage: "withdraws all static address deposits.",
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},
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},
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Action: withdraw,
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}
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func withdraw(ctx *cli.Context) error {
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if ctx.NArg() > 0 {
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return cli.ShowCommandHelp(ctx, "withdraw")
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}
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client, cleanup, err := getClient(ctx)
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if err != nil {
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return err
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}
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defer cleanup()
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var (
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req = &looprpc.WithdrawDepositsRequest{}
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isAllSelected = ctx.IsSet("all")
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isUtxoSelected = ctx.IsSet("utxo")
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outpoints []*looprpc.OutPoint
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ctxb = context.Background()
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)
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switch {
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case isAllSelected == isUtxoSelected:
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return errors.New("must select either all or some utxos")
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case isAllSelected:
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case isUtxoSelected:
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utxos := ctx.StringSlice("utxo")
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outpoints, err = utxosToOutpoints(utxos)
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if err != nil {
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return err
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}
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req.Outpoints = outpoints
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default:
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return fmt.Errorf("unknown withdrawal request")
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}
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resp, err := client.WithdrawDeposits(ctxb, &looprpc.WithdrawDepositsRequest{
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Outpoints: outpoints,
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All: isAllSelected,
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})
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if err != nil {
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return err
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}
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printRespJSON(resp)
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return nil
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}
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func utxosToOutpoints(utxos []string) ([]*looprpc.OutPoint, error) {
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var outpoints []*looprpc.OutPoint
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if len(utxos) == 0 {
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return nil, fmt.Errorf("no utxos specified")
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}
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for _, utxo := range utxos {
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outpoint, err := NewProtoOutPoint(utxo)
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if err != nil {
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return nil, err
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}
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outpoints = append(outpoints, outpoint)
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}
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return outpoints, nil
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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) (*looprpc.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 " +
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"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 &looprpc.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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