Merge pull request #1896 from Roasbeef/btcwallet-unconf-txn

lnwallet+rpc: allow unconfirmed transactions to be returned over RPC, fix SubscribeTransaction unconf for neutrino

Gopkg.lock

@@ -106,7 +106,7 @@
   revision = "ab6388e0c60ae4834a1f57511e20c17b5f78be4b"
 
 [[projects]]
-  digest = "1:012039cbb6694894aa9e9890645e6ade8a5aff5a02c279714779eff3eae53bc2"
+  digest = "1:e6575f3ee773e72a38319dbd8f4cb7f1b574eccfed7cb103c3a25c254d5c250f"
   name = "github.com/btcsuite/btcwallet"
   packages = [
     "chain",
@@ -126,7 +126,7 @@
     "wtxmgr",
   ]
   pruneopts = "UT"
-  revision = "f4ae41ce5f5834eb67ab64cdeed74c74fc95638c"
+  revision = "421298df22601db0fe4adb8f4be71b7014324ba9"
 
 [[projects]]
   branch = "master"
@@ -417,7 +417,6 @@
   version = "v0.3.0"
 
 [[projects]]
-  branch = "master"
   digest = "1:c9e7a4b4d47c0ed205d257648b0e5b0440880cb728506e318f8ac7cd36270bc4"
   name = "golang.org/x/time"
   packages = ["rate"]

Gopkg.toml

@@ -72,7 +72,7 @@
 
 [[constraint]]
   name = "github.com/btcsuite/btcwallet"
-  revision = "f4ae41ce5f5834eb67ab64cdeed74c74fc95638c"
+  revision = "421298df22601db0fe4adb8f4be71b7014324ba9"
 
 [[constraint]]
   name = "github.com/tv42/zbase32"

chainntnfs/bitcoindnotify/bitcoind.go

@@ -6,7 +6,6 @@ import (
 	"strings"
 	"sync"
 	"sync/atomic"
-	"time"
 
 	"github.com/btcsuite/btcd/btcjson"
 	"github.com/btcsuite/btcd/chaincfg/chainhash"
@@ -115,7 +114,7 @@ func New(chainConn *chain.BitcoindConn, spendHintCache chainntnfs.SpendHintCache
 		quit: make(chan struct{}),
 	}
 
-	notifier.chainConn = chainConn.NewBitcoindClient(time.Unix(0, 0))
+	notifier.chainConn = chainConn.NewBitcoindClient()
 
 	return notifier
 }

chainregistry.go

@@ -335,7 +335,7 @@ func newChainControlFromConfig(cfg *config, chanDB *channeldb.DB,
 			bitcoindConn, hintCache, hintCache,
 		)
 		cc.chainView = chainview.NewBitcoindFilteredChainView(bitcoindConn)
-		walletConfig.ChainSource = bitcoindConn.NewBitcoindClient(birthday)
+		walletConfig.ChainSource = bitcoindConn.NewBitcoindClient()
 
 		// If we're not in regtest mode, then we'll attempt to use a
 		// proper fee estimator for testnet.

lnwallet/btcwallet/btcwallet.go

@@ -559,9 +559,11 @@ func (b *BtcWallet) ListTransactionDetails() ([]*lnwallet.TransactionDetail, err
 	bestBlock := b.wallet.Manager.SyncedTo()
 	currentHeight := bestBlock.Height
 
-	// TODO(roasbeef): can replace with start "wallet birthday"
+	// We'll attempt to find all unconfirmed transactions (height of -1),
+	// as well as all transactions that are known to have confirmed at this
+	// height.
 	start := base.NewBlockIdentifierFromHeight(0)
-	stop := base.NewBlockIdentifierFromHeight(bestBlock.Height)
+	stop := base.NewBlockIdentifierFromHeight(-1)
 	txns, err := b.wallet.GetTransactions(start, stop, nil)
 	if err != nil {
 		return nil, err

lnwallet/interface_test.go

@@ -1055,7 +1055,9 @@ func testListTransactionDetails(miner *rpctest.Harness,
 		delete(txids, txDetail.Hash)
 	}
 	if len(txids) != 0 {
-		t.Fatalf("all transactions not found in details!")
+		t.Fatalf("all transactions not found in details: left=%v, "+
+			"returned_set=%v", spew.Sdump(txids),
+			spew.Sdump(txDetails))
 	}
 
 	// Next create a transaction paying to an output which isn't under the
@@ -1075,6 +1077,41 @@ func testListTransactionDetails(miner *rpctest.Harness,
 	if err != nil {
 		t.Fatalf("tx not relayed to miner: %v", err)
 	}
+
+	// Before we mine the next block, we'll ensure that the above
+	// transaction shows up in the set of unconfirmed transactions returned
+	// by ListTransactionDetails.
+	err = waitForWalletSync(miner, alice)
+	if err != nil {
+		t.Fatalf("Couldn't sync Alice's wallet: %v", err)
+	}
+
+	// We should be able to find the transaction above in the set of
+	// returned transactions, and it should have a confirmation of -1,
+	// indicating that it's not yet mined.
+	txDetails, err = alice.ListTransactionDetails()
+	if err != nil {
+		t.Fatalf("unable to fetch tx details: %v", err)
+	}
+	var mempoolTxFound bool
+	for _, txDetail := range txDetails {
+		if !bytes.Equal(txDetail.Hash[:], burnTXID[:]) {
+			continue
+		}
+
+		// Now that we've found the transaction, ensure that it has a
+		// negative number of confirmations to indicate that it's
+		// unconfirmed.
+		mempoolTxFound = true
+		if txDetail.NumConfirmations != 0 {
+			t.Fatalf("num confs incorrect, got %v expected %v",
+				txDetail.NumConfirmations, 0)
+		}
+	}
+	if !mempoolTxFound {
+		t.Fatalf("unable to find mempool tx in tx details!")
+	}
+
 	burnBlock, err := miner.Node.Generate(1)
 	if err != nil {
 		t.Fatalf("unable to mine block: %v", err)
@@ -1233,6 +1270,45 @@ func testTransactionSubscriptions(miner *rpctest.Harness,
 		t.Fatalf("transactions not received after 5 seconds")
 	case <-confirmedNtfns: // Fall through on success
 	}
+
+	// We'll also ensure that the client is able to send our new
+	// notifications when we _create_ transactions ourselves that spend our
+	// own outputs.
+	b := txscript.NewScriptBuilder()
+	b.AddOp(txscript.OP_0)
+	outputScript, err := b.Script()
+	if err != nil {
+		t.Fatalf("unable to make output script: %v", err)
+	}
+	burnOutput := wire.NewTxOut(outputAmt, outputScript)
+	txid, err := alice.SendOutputs([]*wire.TxOut{burnOutput}, 2500)
+	if err != nil {
+		t.Fatalf("unable to create burn tx: %v", err)
+	}
+	err = waitForMempoolTx(miner, txid)
+	if err != nil {
+		t.Fatalf("tx not relayed to miner: %v", err)
+	}
+
+	// Before we mine the next block, we'll ensure that the above
+	// transaction shows up in the set of unconfirmed transactions returned
+	// by ListTransactionDetails.
+	err = waitForWalletSync(miner, alice)
+	if err != nil {
+		t.Fatalf("Couldn't sync Alice's wallet: %v", err)
+	}
+
+	// As we just sent the transaction and it was landed in the mempool, we
+	// should get a notification for a new unconfirmed transactions
+	select {
+	case <-time.After(time.Second * 10):
+		t.Fatalf("transactions not received after 10 seconds")
+	case unConfTx := <-txClient.UnconfirmedTransactions():
+		if unConfTx.Hash != *txid {
+			t.Fatalf("wrong txn notified: expected %v got %v",
+				txid, unConfTx.Hash)
+		}
+	}
 }
 
 // testPublishTransaction checks that PublishTransaction returns the
@@ -2278,8 +2354,8 @@ func runTests(t *testing.T, walletDriver *lnwallet.WalletDriver,
 
 			// Create a btcwallet bitcoind client for both Alice and
 			// Bob.
-			aliceClient = chainConn.NewBitcoindClient(time.Unix(0, 0))
+			aliceClient = chainConn.NewBitcoindClient()
-			bobClient = chainConn.NewBitcoindClient(time.Unix(0, 0))
+			bobClient = chainConn.NewBitcoindClient()
 		default:
 			t.Fatalf("unknown chain driver: %v", backEnd)
 		}

routing/chainview/bitcoind.go

@@ -6,7 +6,6 @@ import (
 	"fmt"
 	"sync"
 	"sync/atomic"
-	"time"
 
 	"github.com/btcsuite/btcd/btcjson"
 	"github.com/btcsuite/btcd/chaincfg/chainhash"
@@ -71,7 +70,7 @@ func NewBitcoindFilteredChainView(
 		quit:            make(chan struct{}),
 	}
 
-	chainView.chainClient = chainConn.NewBitcoindClient(time.Unix(0, 0))
+	chainView.chainClient = chainConn.NewBitcoindClient()
 	chainView.blockQueue = newBlockEventQueue()
 
 	return chainView