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https://github.com/lightningnetwork/lnd.git
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2cc5891c8c
In this commit, we address an issue that would cause us to scan from the genesis block for the spend of an output that we wish to use to raise the fee of a transaction through CPFP. This was due to setting a 0 height hint when constructing the input required by the sweeper and was discovered due to the recently added validation checks at the chain notifier level. We'll now use the current height as the height hint instead as the sweeper will end up creating a new transaction that spends the input.
82 lines
2.6 KiB
Go
82 lines
2.6 KiB
Go
// +build walletrpc
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package walletrpc
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import (
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"fmt"
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"github.com/lightningnetwork/lnd/lnrpc"
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)
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// createNewSubServer is a helper method that will create the new WalletKit RPC
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// sub server given the main config dispatcher method. If we're unable to find
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// the config that is meant for us in the config dispatcher, then we'll exit
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// with an error.
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func createNewSubServer(configRegistry lnrpc.SubServerConfigDispatcher) (lnrpc.SubServer, lnrpc.MacaroonPerms, error) {
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// We'll attempt to look up the config that we expect, according to our
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// subServerName name. If we can't find this, then we'll exit with an
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// error, as we're unable to properly initialize ourselves without this
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// config.
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walletKitServerConf, ok := configRegistry.FetchConfig(subServerName)
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if !ok {
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return nil, nil, fmt.Errorf("unable to find config for "+
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"subserver type %s", subServerName)
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}
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// Now that we've found an object mapping to our service name, we'll
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// ensure that it's the type we need.
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config, ok := walletKitServerConf.(*Config)
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if !ok {
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return nil, nil, fmt.Errorf("wrong type of config for "+
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"subserver %s, expected %T got %T", subServerName,
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&Config{}, walletKitServerConf)
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}
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// Before we try to make the new WalletKit service instance, we'll
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// perform some sanity checks on the arguments to ensure that they're
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// useable.
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switch {
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case config.MacService != nil && config.NetworkDir == "":
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return nil, nil, fmt.Errorf("NetworkDir must be set to " +
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"create WalletKit RPC server")
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case config.FeeEstimator == nil:
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return nil, nil, fmt.Errorf("FeeEstimator must be set to " +
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"create WalletKit RPC server")
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case config.Wallet == nil:
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return nil, nil, fmt.Errorf("Wallet must be set to create " +
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"WalletKit RPC server")
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case config.KeyRing == nil:
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return nil, nil, fmt.Errorf("KeyRing must be set to create " +
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"WalletKit RPC server")
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case config.Sweeper == nil:
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return nil, nil, fmt.Errorf("Sweeper must be set to create " +
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"WalletKit RPC server")
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case config.Chain == nil:
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return nil, nil, fmt.Errorf("Chain must be set to create " +
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"WalletKit RPC server")
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}
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return New(config)
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}
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func init() {
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subServer := &lnrpc.SubServerDriver{
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SubServerName: subServerName,
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New: func(c lnrpc.SubServerConfigDispatcher) (lnrpc.SubServer, lnrpc.MacaroonPerms, error) {
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return createNewSubServer(c)
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},
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}
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// If the build tag is active, then we'll register ourselves as a
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// sub-RPC server within the global lnrpc package namespace.
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if err := lnrpc.RegisterSubServer(subServer); err != nil {
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panic(fmt.Sprintf("failed to register sub server driver '%s': %v",
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subServerName, err))
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}
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}
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