Merge pull request #4228 from carlaKC/txdetails-labeltxrpc

walletrpc: add LabelTransaction endpoint to retrospectively label txns
This commit is contained in:
Conner Fromknecht 2020-05-26 18:37:27 -07:00 committed by GitHub
commit 32b04b7ac3
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
10 changed files with 440 additions and 90 deletions

@ -28,6 +28,7 @@ func walletCommands() []cli.Command {
bumpFeeCommand,
bumpCloseFeeCommand,
listSweepsCommand,
labelTxCommand,
},
},
}
@ -340,3 +341,58 @@ func listSweeps(ctx *cli.Context) error {
return nil
}
var labelTxCommand = cli.Command{
Name: "labeltx",
Usage: "adds a label to a transaction",
ArgsUsage: "txid label",
Description: `
Add a label to a transaction. If the transaction already has a label,
this call will fail unless the overwrite option is set. The label is
limited to 500 characters. Note that multi word labels must be contained
in quotation marks ("").
`,
Flags: []cli.Flag{
cli.BoolFlag{
Name: "overwrite",
Usage: "set to overwrite existing labels",
},
},
Action: actionDecorator(labelTransaction),
}
func labelTransaction(ctx *cli.Context) error {
// Display the command's help message if we do not have the expected
// number of arguments/flags.
if ctx.NArg() != 2 {
return cli.ShowCommandHelp(ctx, "labeltx")
}
// Get the transaction id and check that it is a valid hash.
txid := ctx.Args().Get(0)
hash, err := chainhash.NewHashFromStr(txid)
if err != nil {
return err
}
label := ctx.Args().Get(1)
walletClient, cleanUp := getWalletClient(ctx)
defer cleanUp()
ctxb := context.Background()
_, err = walletClient.LabelTransaction(
ctxb, &walletrpc.LabelTransactionRequest{
Txid: hash[:],
Label: label,
Overwrite: ctx.Bool("overwrite"),
},
)
if err != nil {
return err
}
fmt.Printf("Transaction: %v labelled with: %v\n", txid, label)
return nil
}

@ -997,6 +997,95 @@ func (m *ListSweepsResponse_TransactionIDs) GetTransactionIds() []string {
return nil
}
type LabelTransactionRequest struct {
// The txid of the transaction to label.
Txid []byte `protobuf:"bytes,1,opt,name=txid,proto3" json:"txid,omitempty"`
// The label to add to the transaction, limited to 500 characters.
Label string `protobuf:"bytes,2,opt,name=label,proto3" json:"label,omitempty"`
// Whether to overwrite the existing label, if it is present.
Overwrite bool `protobuf:"varint,3,opt,name=overwrite,proto3" json:"overwrite,omitempty"`
XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"`
XXX_sizecache int32 `json:"-"`
}
func (m *LabelTransactionRequest) Reset() { *m = LabelTransactionRequest{} }
func (m *LabelTransactionRequest) String() string { return proto.CompactTextString(m) }
func (*LabelTransactionRequest) ProtoMessage() {}
func (*LabelTransactionRequest) Descriptor() ([]byte, []int) {
return fileDescriptor_6cc6942ac78249e5, []int{16}
}
func (m *LabelTransactionRequest) XXX_Unmarshal(b []byte) error {
return xxx_messageInfo_LabelTransactionRequest.Unmarshal(m, b)
}
func (m *LabelTransactionRequest) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
return xxx_messageInfo_LabelTransactionRequest.Marshal(b, m, deterministic)
}
func (m *LabelTransactionRequest) XXX_Merge(src proto.Message) {
xxx_messageInfo_LabelTransactionRequest.Merge(m, src)
}
func (m *LabelTransactionRequest) XXX_Size() int {
return xxx_messageInfo_LabelTransactionRequest.Size(m)
}
func (m *LabelTransactionRequest) XXX_DiscardUnknown() {
xxx_messageInfo_LabelTransactionRequest.DiscardUnknown(m)
}
var xxx_messageInfo_LabelTransactionRequest proto.InternalMessageInfo
func (m *LabelTransactionRequest) GetTxid() []byte {
if m != nil {
return m.Txid
}
return nil
}
func (m *LabelTransactionRequest) GetLabel() string {
if m != nil {
return m.Label
}
return ""
}
func (m *LabelTransactionRequest) GetOverwrite() bool {
if m != nil {
return m.Overwrite
}
return false
}
type LabelTransactionResponse struct {
XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"`
XXX_sizecache int32 `json:"-"`
}
func (m *LabelTransactionResponse) Reset() { *m = LabelTransactionResponse{} }
func (m *LabelTransactionResponse) String() string { return proto.CompactTextString(m) }
func (*LabelTransactionResponse) ProtoMessage() {}
func (*LabelTransactionResponse) Descriptor() ([]byte, []int) {
return fileDescriptor_6cc6942ac78249e5, []int{17}
}
func (m *LabelTransactionResponse) XXX_Unmarshal(b []byte) error {
return xxx_messageInfo_LabelTransactionResponse.Unmarshal(m, b)
}
func (m *LabelTransactionResponse) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
return xxx_messageInfo_LabelTransactionResponse.Marshal(b, m, deterministic)
}
func (m *LabelTransactionResponse) XXX_Merge(src proto.Message) {
xxx_messageInfo_LabelTransactionResponse.Merge(m, src)
}
func (m *LabelTransactionResponse) XXX_Size() int {
return xxx_messageInfo_LabelTransactionResponse.Size(m)
}
func (m *LabelTransactionResponse) XXX_DiscardUnknown() {
xxx_messageInfo_LabelTransactionResponse.DiscardUnknown(m)
}
var xxx_messageInfo_LabelTransactionResponse proto.InternalMessageInfo
func init() {
proto.RegisterEnum("walletrpc.WitnessType", WitnessType_name, WitnessType_value)
proto.RegisterType((*KeyReq)(nil), "walletrpc.KeyReq")
@ -1016,87 +1105,93 @@ func init() {
proto.RegisterType((*ListSweepsRequest)(nil), "walletrpc.ListSweepsRequest")
proto.RegisterType((*ListSweepsResponse)(nil), "walletrpc.ListSweepsResponse")
proto.RegisterType((*ListSweepsResponse_TransactionIDs)(nil), "walletrpc.ListSweepsResponse.TransactionIDs")
proto.RegisterType((*LabelTransactionRequest)(nil), "walletrpc.LabelTransactionRequest")
proto.RegisterType((*LabelTransactionResponse)(nil), "walletrpc.LabelTransactionResponse")
}
func init() { proto.RegisterFile("walletrpc/walletkit.proto", fileDescriptor_6cc6942ac78249e5) }
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}
// Reference imports to suppress errors if they are not otherwise used.
@ -1181,6 +1276,12 @@ type WalletKitClient interface {
//Note that these sweeps may not be confirmed yet, as we record sweeps on
//broadcast, not confirmation.
ListSweeps(ctx context.Context, in *ListSweepsRequest, opts ...grpc.CallOption) (*ListSweepsResponse, error)
//
//LabelTransaction adds a label to a transaction. If the transaction already
//has a label the call will fail unless the overwrite bool is set. This will
//overwrite the exiting transaction label. Labels must not be empty, and
//cannot exceed 500 characters.
LabelTransaction(ctx context.Context, in *LabelTransactionRequest, opts ...grpc.CallOption) (*LabelTransactionResponse, error)
}
type walletKitClient struct {
@ -1272,6 +1373,15 @@ func (c *walletKitClient) ListSweeps(ctx context.Context, in *ListSweepsRequest,
return out, nil
}
func (c *walletKitClient) LabelTransaction(ctx context.Context, in *LabelTransactionRequest, opts ...grpc.CallOption) (*LabelTransactionResponse, error) {
out := new(LabelTransactionResponse)
err := c.cc.Invoke(ctx, "/walletrpc.WalletKit/LabelTransaction", in, out, opts...)
if err != nil {
return nil, err
}
return out, nil
}
// WalletKitServer is the server API for WalletKit service.
type WalletKitServer interface {
//
@ -1344,6 +1454,12 @@ type WalletKitServer interface {
//Note that these sweeps may not be confirmed yet, as we record sweeps on
//broadcast, not confirmation.
ListSweeps(context.Context, *ListSweepsRequest) (*ListSweepsResponse, error)
//
//LabelTransaction adds a label to a transaction. If the transaction already
//has a label the call will fail unless the overwrite bool is set. This will
//overwrite the exiting transaction label. Labels must not be empty, and
//cannot exceed 500 characters.
LabelTransaction(context.Context, *LabelTransactionRequest) (*LabelTransactionResponse, error)
}
func RegisterWalletKitServer(s *grpc.Server, srv WalletKitServer) {
@ -1512,6 +1628,24 @@ func _WalletKit_ListSweeps_Handler(srv interface{}, ctx context.Context, dec fun
return interceptor(ctx, in, info, handler)
}
func _WalletKit_LabelTransaction_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
in := new(LabelTransactionRequest)
if err := dec(in); err != nil {
return nil, err
}
if interceptor == nil {
return srv.(WalletKitServer).LabelTransaction(ctx, in)
}
info := &grpc.UnaryServerInfo{
Server: srv,
FullMethod: "/walletrpc.WalletKit/LabelTransaction",
}
handler := func(ctx context.Context, req interface{}) (interface{}, error) {
return srv.(WalletKitServer).LabelTransaction(ctx, req.(*LabelTransactionRequest))
}
return interceptor(ctx, in, info, handler)
}
var _WalletKit_serviceDesc = grpc.ServiceDesc{
ServiceName: "walletrpc.WalletKit",
HandlerType: (*WalletKitServer)(nil),
@ -1552,6 +1686,10 @@ var _WalletKit_serviceDesc = grpc.ServiceDesc{
MethodName: "ListSweeps",
Handler: _WalletKit_ListSweeps_Handler,
},
{
MethodName: "LabelTransaction",
Handler: _WalletKit_LabelTransaction_Handler,
},
},
Streams: []grpc.StreamDesc{},
Metadata: "walletrpc/walletkit.proto",

@ -97,6 +97,15 @@ service WalletKit {
broadcast, not confirmation.
*/
rpc ListSweeps (ListSweepsRequest) returns (ListSweepsResponse);
/*
LabelTransaction adds a label to a transaction. If the transaction already
has a label the call will fail unless the overwrite bool is set. This will
overwrite the exiting transaction label. Labels must not be empty, and
cannot exceed 500 characters.
*/
rpc LabelTransaction (LabelTransactionRequest)
returns (LabelTransactionResponse);
}
message KeyReq {
@ -367,3 +376,17 @@ message ListSweepsResponse {
TransactionIDs transaction_ids = 2;
}
}
message LabelTransactionRequest {
// The txid of the transaction to label.
bytes txid = 1;
// The label to add to the transaction, limited to 500 characters.
string label = 2;
// Whether to overwrite the existing label, if it is present.
bool overwrite = 3;
}
message LabelTransactionResponse {
}

@ -178,6 +178,9 @@
}
}
},
"walletrpcLabelTransactionResponse": {
"type": "object"
},
"walletrpcListSweepsResponse": {
"type": "object",
"properties": {

@ -94,6 +94,10 @@ var (
Entity: "onchain",
Action: "read",
}},
"/walletrpc.WalletKit/LabelTransaction": {{
Entity: "onchain",
Action: "write",
}},
}
// DefaultWalletKitMacFilename is the default name of the wallet kit
@ -102,6 +106,10 @@ var (
DefaultWalletKitMacFilename = "walletkit.macaroon"
)
// ErrZeroLabel is returned when an attempt is made to label a transaction with
// an empty label.
var ErrZeroLabel = errors.New("cannot label transaction with empty label")
// WalletKit is a sub-RPC server that exposes a tool kit which allows clients
// to execute common wallet operations. This includes requesting new addresses,
// keys (for contracts!), and publishing transactions.
@ -635,3 +643,28 @@ func (w *WalletKit) ListSweeps(ctx context.Context,
},
}, nil
}
// LabelTransaction adds a label to a transaction.
func (w *WalletKit) LabelTransaction(ctx context.Context,
req *LabelTransactionRequest) (*LabelTransactionResponse, error) {
// Check that the label provided in non-zero.
if len(req.Label) == 0 {
return nil, ErrZeroLabel
}
// Validate the length of the non-zero label. We do not need to use the
// label returned here, because the original is non-zero so will not
// be replaced.
if _, err := labels.ValidateAPI(req.Label); err != nil {
return nil, err
}
hash, err := chainhash.NewHash(req.Txid)
if err != nil {
return nil, err
}
err = w.cfg.Wallet.LabelTransaction(*hash, req.Label, req.Overwrite)
return &LabelTransactionResponse{}, err
}

@ -28,6 +28,7 @@ import (
"github.com/btcsuite/btcd/rpcclient"
"github.com/btcsuite/btcd/wire"
"github.com/btcsuite/btcutil"
"github.com/btcsuite/btcwallet/wallet"
"github.com/davecgh/go-spew/spew"
"github.com/go-errors/errors"
"github.com/lightningnetwork/lnd"
@ -12652,24 +12653,66 @@ func testSweepAllCoins(net *lntest.NetworkHarness, t *harnessTest) {
t.Fatalf("expected 2 inputs instead have %v", len(sweepTx.TxIn))
}
// List all transactions relevant to our wallet, and find the sweep tx
// so that we can check the correct label has been set.
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
txResp, err := ainz.GetTransactions(ctxt, &lnrpc.GetTransactionsRequest{})
if err != nil {
t.Fatalf("could not get transactions: %v", err)
sweepTxStr := sweepTx.TxHash().String()
assertTxLabel(ctxb, t, ainz, sweepTxStr, sendCoinsLabel)
// While we are looking at labels, we test our label transaction command
// to make sure it is behaving as expected. First, we try to label our
// transaction with an empty label, and check that we fail as expected.
sweepHash := sweepTx.TxHash()
_, err = ainz.WalletKitClient.LabelTransaction(
ctxt, &walletrpc.LabelTransactionRequest{
Txid: sweepHash[:],
Label: "",
Overwrite: false,
},
)
if err == nil {
t.Fatalf("expected error for zero transaction label")
}
sweepTxStr := sweepTx.TxHash().String()
for _, txn := range txResp.Transactions {
if txn.TxHash == sweepTxStr {
if txn.Label != sendCoinsLabel {
t.Fatalf("expected label: %v, got: %v",
sendCoinsLabel, txn.Label)
}
}
// Our error will be wrapped in a rpc error, so we check that it
// contains the error we expect.
if !strings.Contains(err.Error(), walletrpc.ErrZeroLabel.Error()) {
t.Fatalf("expected: zero label error, got: %v", err)
}
// Next, we try to relabel our transaction without setting the overwrite
// boolean. We expect this to fail, because the wallet requires setting
// of this param to prevent accidental overwrite of labels.
_, err = ainz.WalletKitClient.LabelTransaction(
ctxt, &walletrpc.LabelTransactionRequest{
Txid: sweepHash[:],
Label: "label that will not work",
Overwrite: false,
},
)
if err == nil {
t.Fatalf("expected error for tx already labelled")
}
// Our error will be wrapped in a rpc error, so we check that it
// contains the error we expect.
if !strings.Contains(err.Error(), wallet.ErrTxLabelExists.Error()) {
t.Fatalf("expected: label exists, got: %v", err)
}
// Finally, we overwrite our label with a new label, which should not
// fail.
newLabel := "new sweep tx label"
_, err = ainz.WalletKitClient.LabelTransaction(
ctxt, &walletrpc.LabelTransactionRequest{
Txid: sweepHash[:],
Label: newLabel,
Overwrite: true,
},
)
if err != nil {
t.Fatalf("could not label tx: %v", err)
}
assertTxLabel(ctxb, t, ainz, sweepTxStr, newLabel)
// Finally, Ainz should now have no coins at all within his wallet.
balReq := &lnrpc.WalletBalanceRequest{}
resp, err := ainz.WalletBalance(ctxt, balReq)
@ -12695,6 +12738,35 @@ func testSweepAllCoins(net *lntest.NetworkHarness, t *harnessTest) {
}
}
// assertTxLabel is a helper function which finds a target tx in our set
// of transactions and checks that it has the desired label.
func assertTxLabel(ctx context.Context, t *harnessTest,
node *lntest.HarnessNode, targetTx, label string) {
// List all transactions relevant to our wallet, and find the tx so that
// we can check the correct label has been set.
ctxt, cancel := context.WithTimeout(ctx, defaultTimeout)
defer cancel()
txResp, err := node.GetTransactions(
ctxt, &lnrpc.GetTransactionsRequest{},
)
if err != nil {
t.Fatalf("could not get transactions: %v", err)
}
// Find our transaction in the set of transactions returned and check
// its label.
for _, txn := range txResp.Transactions {
if txn.TxHash == targetTx {
if txn.Label != label {
t.Fatalf("expected label: %v, got: %v",
label, txn.Label)
}
}
}
}
// testChannelBackupUpdates tests that both the streaming channel update RPC,
// and the on-disk channels.backup are updated each time a channel is
// opened/closed.

@ -179,3 +179,5 @@
<time> [ERR] UTXN: error while graduating class at height=<height>: TxNotifier is exiting
<time> [ERR] UTXN: Failed to sweep first-stage HTLC (CLTV-delayed) output <chan_point>
<time> [ERR] UTXN: Notification chan closed, can't advance output <chan_point>
<time> [ERR] RPCS: [/walletrpc.WalletKit/LabelTransaction]: cannot label transaction with empty label
<time> [ERR] RPCS: [/walletrpc.WalletKit/LabelTransaction]: transaction already labelled

@ -461,6 +461,17 @@ func (b *BtcWallet) PublishTransaction(tx *wire.MsgTx, label string) error {
return nil
}
// LabelTransaction adds a label to a transaction. If the tx already
// has a label, this call will fail unless the overwrite parameter
// is set. Labels must not be empty, and they are limited to 500 chars.
//
// Note: it is part of the WalletController interface.
func (b *BtcWallet) LabelTransaction(hash chainhash.Hash, label string,
overwrite bool) error {
return b.wallet.LabelTransaction(hash, label, overwrite)
}
// extractBalanceDelta extracts the net balance delta from the PoV of the
// wallet given a TransactionSummary.
func extractBalanceDelta(

@ -231,6 +231,11 @@ type WalletController interface {
// published transaction.
PublishTransaction(tx *wire.MsgTx, label string) error
// LabelTransaction adds a label to a transaction. If the tx already
// has a label, this call will fail unless the overwrite parameter
// is set. Labels must not be empty, and they are limited to 500 chars.
LabelTransaction(hash chainhash.Hash, label string, overwrite bool) error
// SubscribeTransactions returns a TransactionSubscription client which
// is capable of receiving async notifications as new transactions
// related to the wallet are seen within the network, or found in

@ -326,6 +326,13 @@ func (m *mockWalletController) PublishTransaction(tx *wire.MsgTx, _ string) erro
m.publishedTransactions <- tx
return nil
}
func (m *mockWalletController) LabelTransaction(_ chainhash.Hash, _ string,
_ bool) error {
return nil
}
func (*mockWalletController) SubscribeTransactions() (lnwallet.TransactionSubscription, error) {
return nil, nil
}