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89 lines
2.3 KiB
Go
89 lines
2.3 KiB
Go
package main
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import (
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"fmt"
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"github.com/btcsuite/btcutil/hdkeychain"
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"github.com/davecgh/go-spew/spew"
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"github.com/guggero/chantools/dump"
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"github.com/guggero/chantools/lnd"
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"github.com/lightningnetwork/lnd/chanbackup"
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"github.com/lightningnetwork/lnd/keychain"
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)
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type dumpBackupCommand struct {
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RootKey string `long:"rootkey" description:"BIP32 HD root key of the wallet that was used to create the backup. Leave empty to prompt for lnd 24 word aezeed."`
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MultiFile string `long:"multi_file" description:"The lnd channel.backup file to dump."`
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}
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func (c *dumpBackupCommand) Execute(_ []string) error {
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setupChainParams(cfg)
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var (
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extendedKey *hdkeychain.ExtendedKey
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err error
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)
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// Check that root key is valid or fall back to console input.
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switch {
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case c.RootKey != "":
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extendedKey, err = hdkeychain.NewKeyFromString(c.RootKey)
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default:
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extendedKey, _, err = rootKeyFromConsole()
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}
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if err != nil {
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return fmt.Errorf("error reading root key: %v", err)
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}
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// Check that we have a backup file.
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if c.MultiFile == "" {
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return fmt.Errorf("backup file is required")
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}
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multiFile := chanbackup.NewMultiFile(c.MultiFile)
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keyRing := &lnd.HDKeyRing{
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ExtendedKey: extendedKey,
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ChainParams: chainParams,
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}
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return dumpChannelBackup(multiFile, keyRing)
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}
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func dumpChannelBackup(multiFile *chanbackup.MultiFile,
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ring keychain.KeyRing) error {
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multi, err := multiFile.ExtractMulti(ring)
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if err != nil {
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return fmt.Errorf("could not extract multi file: %v", err)
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}
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dumpSingles := make([]dump.BackupSingle, len(multi.StaticBackups))
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for idx, single := range multi.StaticBackups {
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dumpSingles[idx] = dump.BackupSingle{
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Version: single.Version,
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IsInitiator: single.IsInitiator,
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ChainHash: single.ChainHash.String(),
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FundingOutpoint: single.FundingOutpoint.String(),
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ShortChannelID: single.ShortChannelID,
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RemoteNodePub: dump.PubKeyToString(
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single.RemoteNodePub,
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),
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Addresses: single.Addresses,
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Capacity: single.Capacity,
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LocalChanCfg: dump.ToChannelConfig(
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chainParams, single.LocalChanCfg,
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),
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RemoteChanCfg: dump.ToChannelConfig(
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chainParams, single.RemoteChanCfg,
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),
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ShaChainRootDesc: dump.ToKeyDescriptor(
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chainParams, single.ShaChainRootDesc,
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),
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}
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}
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spew.Dump(dump.BackupMulti{
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Version: multi.Version,
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StaticBackups: dumpSingles,
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})
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return nil
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}
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