DHT Improvements

README.md

@@ -3,7 +3,7 @@
 <img align="right" width="425px" src="https://github.com/xssnick/props/blob/master/logoimg.png?raw=true">
 
 [![Based on TON][ton-svg]][ton]
-![Coverage](https://img.shields.io/badge/Coverage-74.1%25-brightgreen)
+![Coverage](https://img.shields.io/badge/Coverage-74.0%25-brightgreen)
 
 Golang library for interacting with TON blockchain.
 

adnl/dht/bucket.go

@@ -23,7 +23,7 @@ func (b *Bucket) getNodes() dhtNodeList {
 	b.mx.RLock()
 	defer b.mx.RUnlock()
 
-	return b.nodes
+	return append(dhtNodeList{}, b.nodes...)
 }
 
 func (b *Bucket) getNode(id string) *dhtNode {
@@ -56,7 +56,7 @@ func (b *Bucket) addNode(node *dhtNode) {
 
 func (b *Bucket) sortAndFilter() {
 	sort.Sort(b.nodes)
-	if len(b.nodes) > int(b.k*2) {
-		b.nodes = b.nodes[:b.k*2]
+	if len(b.nodes) > int(b.k*5) {
+		b.nodes = b.nodes[:b.k*5]
 	}
 }

adnl/dht/client.go

@@ -355,12 +355,12 @@ func (c *Client) Store(
 					cancel()
 					if err != nil {
 						return
-					} else {
-						Logger("Adding nodes", len(nodes))
-						for _, n := range nodes {
-							if _, err = c.addNode(n); err != nil {
-								continue
-							}
+					}
+
+					Logger("Adding nodes", len(nodes))
+					for _, n := range nodes {
+						if _, err = c.addNode(n); err != nil {
+							continue
 						}
 					}
 				}()
@@ -543,35 +543,33 @@ func (c *Client) FindValue(ctx context.Context, key *Key, continuation ...*Conti
 }
 
 func (c *Client) buildPriorityList(id []byte) *priorityList {
-	plist := newPriorityList(_K*3, id)
-
-	added := 0
+	plistGood := newPriorityList(_K*3, id)
+	plistBad := newPriorityList(_K, id)
 
 	for i := 255; i >= 0; i-- {
 		bucket := c.buckets[i]
 		knownNodes := bucket.getNodes()
 		for _, node := range knownNodes {
-			if node != nil && node.badScore == 0 {
-				if plist.addNode(node) {
-					added++
-				}
+			if node == nil {
+				continue
+			}
+
+			if atomic.LoadInt32(&node.badScore) == 0 {
+				plistGood.addNode(node)
+			} else {
+				plistBad.addNode(node)
 			}
 		}
 	}
 
-	if added < _K {
-		for i := 255; i >= 0; i-- {
-			bucket := c.buckets[i]
-			knownNodes := bucket.getNodes()
-			for _, node := range knownNodes {
-				if node != nil && node.badScore > 0 {
-					if plist.addNode(node) {
-						added++
-					}
-				}
-			}
+	// add K not good nodes to retry them if they can be better
+	for {
+		node, _ := plistBad.getNode()
+		if node == nil {
+			break
 		}
+		plistGood.addNode(node)
 	}
 
-	return plist
+	return plistGood
 }

adnl/dht/client_test.go

@@ -541,7 +541,7 @@ func TestClient_FindAddressesIntegration(t *testing.T) {
 	ctx, cancel := context.WithTimeout(context.Background(), 20*time.Second)
 	defer cancel()
 
-	dhtClient, err := NewClientFromConfigUrl(ctx, gateway, "https://ton.org/global.config.json")
+	dhtClient, err := NewClientFromConfigUrl(ctx, gateway, "https://tonutils.com/global.config.json")
 	if err != nil {
 		t.Fatalf("failed to init DHT client: %s", err.Error())
 	}
@@ -724,7 +724,7 @@ func TestClient_Close(t *testing.T) {
 //	ctx, cancel := context.WithTimeout(context.Background(), 40*time.Second)
 //	defer cancel()
 //
-//	dhtClient, err := NewClientFromConfigUrl(ctx, gateway, "https://ton.org/global.config.json")
+//	dhtClient, err := NewClientFromConfigUrl(ctx, gateway, "https://tonutils.com/global.config.json")
 //	if err != nil {
 //		t.Fatalf("failed to init DHT client: %s", err.Error())
 //	}
@@ -775,7 +775,7 @@ func TestClient_StoreAddressIntegration(t *testing.T) {
 	ctx, cancel := context.WithTimeout(context.Background(), 90*time.Second)
 	defer cancel()
 
-	dhtClient, err := NewClientFromConfigUrl(ctx, gateway, "https://ton.org/global.config.json")
+	dhtClient, err := NewClientFromConfigUrl(ctx, gateway, "https://tonutils.com/global.config.json")
 	if err != nil {
 		t.Fatalf("failed to init DHT client: %s", err.Error())
 	}

adnl/dht/node.go

@@ -17,7 +17,7 @@ import (
 	"github.com/xssnick/tonutils-go/tl"
 )
 
-const _MaxFailCount = 5
+const _MaxFailCount = 3
 
 type dhtNode struct {
 	adnlId []byte
@@ -89,6 +89,27 @@ func (n *dhtNode) findNodes(ctx context.Context, id []byte, K int32) (result []*
 	return nil, fmt.Errorf("failed to find nodes, unexpected response type %s", reflect.TypeOf(res).String())
 }
 
+func (n *dhtNode) doPing(ctx context.Context) (err error) {
+	val, err := tl.Serialize(Ping{
+		ID: time.Now().Unix(),
+	}, true)
+	if err != nil {
+		return fmt.Errorf("failed to serialize dht ping query: %w", err)
+	}
+
+	var res any
+	err = n.query(ctx, tl.Raw(val), &res)
+	if err != nil {
+		return fmt.Errorf("failed to ping dht node: %w", err)
+	}
+
+	switch res.(type) {
+	case Pong:
+		return nil
+	}
+	return fmt.Errorf("failed to ping node, unexpected response type %s", reflect.TypeOf(res).String())
+}
+
 func (n *dhtNode) storeValue(ctx context.Context, id []byte, value *Value) error {
 	if err := checkValue(id, value); err != nil {
 		return fmt.Errorf("corrupted value: %w", err)
@@ -124,23 +145,11 @@ func (n *dhtNode) findValue(ctx context.Context, id []byte, K int32) (result any
 		return nil, fmt.Errorf("failed to serialize dht value: %w", err)
 	}
 
-	if err = ctx.Err(); err != nil {
-		// if context is canceled we are not trying to query
-		return nil, err
-	}
-
-	reportLimit := time.Now().Add(3 * time.Second)
-
 	var res any
 	err = n.query(ctx, tl.Raw(val), &res)
 	if err != nil {
-		if time.Now().After(reportLimit) {
-			// to not report good nodes, because of our short deadline
-			n.updateStatus(false)
-		}
 		return nil, fmt.Errorf("failed to do query to dht node: %w", err)
 	}
-	n.updateStatus(true)
 
 	switch r := res.(type) {
 	case ValueNotFoundResult:
@@ -239,6 +248,11 @@ func checkValue(id []byte, value *Value) error {
 }
 
 func (n *dhtNode) query(ctx context.Context, req, res tl.Serializable) error {
+	if err := ctx.Err(); err != nil {
+		// if context is canceled we are not trying to query
+		return err
+	}
+
 	atomic.AddInt32(&n.inFlyQueries, 1)
 
 	peer, err := n.client.gateway.RegisterClient(n.addr, n.serverKey)
@@ -248,42 +262,42 @@ func (n *dhtNode) query(ctx context.Context, req, res tl.Serializable) error {
 	}
 
 	defer func() {
-		if atomic.AddInt32(&n.inFlyQueries, -1) == 0 && n.badScore > 0 {
+		if atomic.AddInt32(&n.inFlyQueries, -1) == 0 && n.badScore > 1 {
 			peer.Close()
 		}
 	}()
 
 	t := time.Now()
+	reportLimit := t.Add(queryTimeout - 500*time.Millisecond)
 	atomic.StoreInt64(&n.lastQueryAt, t.Unix())
 	err = peer.Query(ctx, req, res)
 	if err != nil {
+		if time.Now().After(reportLimit) {
+			// to not report good nodes, because of our short deadline
+			n.updateStatus(false)
+		}
 		return err
 	}
 	ping := time.Since(t)
 	atomic.StoreInt64(&n.ping, int64(ping))
 
+	n.updateStatus(true)
+
 	return nil
 }
 
 func (n *dhtNode) updateStatus(isGood bool) {
 	if isGood {
-		for {
-			badScore := atomic.LoadInt32(&n.badScore)
-			if badScore >= _MaxFailCount {
-				if !atomic.CompareAndSwapInt32(&n.badScore, badScore, badScore-1) {
-					continue
-				}
-				Logger("Make DHT peer {} feel good {}", n.id(), badScore-1)
-			}
-			break
-		}
-	} else {
-		badScore := atomic.LoadInt32(&n.badScore)
-		if badScore <= _MaxFailCount {
-			badScore = atomic.AddInt32(&n.badScore, 2)
-		}
-		Logger("Make DHT peer {} feel bad {}", n.id(), badScore)
+		atomic.StoreInt32(&n.badScore, 0)
+		Logger("Make DHT peer {} feel good {}", n.id(), 0)
+		return
+	}
+
+	badScore := atomic.LoadInt32(&n.badScore)
+	if badScore <= _MaxFailCount {
+		badScore = atomic.AddInt32(&n.badScore, 1)
 	}
+	Logger("Make DHT peer {} feel bad {}", n.id(), badScore)
 }
 
 func (n *dhtNode) id() string {

adnl/rldp/http/client_test.go

@@ -413,7 +413,7 @@ func TestTransport_RoundTripIntegration(t *testing.T) {
 		t.Fatal(err)
 	}
 
-	dhtClient, err := dht.NewClientFromConfigUrl(context.Background(), gateway, "https://ton.org/global.config.json")
+	dhtClient, err := dht.NewClientFromConfigUrl(context.Background(), gateway, "https://tonutils.com/global.config.json")
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -438,7 +438,7 @@ func getDNSResolver() *dns.Client {
 	client := liteclient.NewConnectionPool()
 
 	// connect to testnet lite server
-	err := client.AddConnectionsFromConfigUrl(context.Background(), "https://ton.org/global.config.json")
+	err := client.AddConnectionsFromConfigUrl(context.Background(), "https://tonutils.com/global.config.json")
 	if err != nil {
 		panic(err)
 	}

liteclient/integration_test.go

@@ -38,7 +38,7 @@ func Test_Conn(t *testing.T) {
 	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
 	defer cancel()
 
-	err := client.AddConnectionsFromConfigUrl(ctx, "https://ton.org/global.config.json")
+	err := client.AddConnectionsFromConfigUrl(ctx, "https://tonutils.com/global.config.json")
 	if err != nil {
 		t.Fatal("add connections err", err)
 	}
@@ -76,7 +76,7 @@ func Test_ConnSticky(t *testing.T) {
 	defer cancel()
 	ctx = client.StickyContext(ctx)
 
-	err := client.AddConnectionsFromConfigUrl(ctx, "https://ton.org/global.config.json")
+	err := client.AddConnectionsFromConfigUrl(ctx, "https://tonutils.com/global.config.json")
 	if err != nil {
 		t.Fatal("add connections err", err)
 	}
@@ -110,7 +110,7 @@ func Test_ConnSticky(t *testing.T) {
 func Test_ServerProxy(t *testing.T) {
 	client := NewConnectionPool()
 
-	err := client.AddConnectionsFromConfigUrl(context.Background(), "https://ton.org/global.config.json")
+	err := client.AddConnectionsFromConfigUrl(context.Background(), "https://tonutils.com/global.config.json")
 	if err != nil {
 		t.Fatal("add connections err", err)
 	}

ton/dns/integration_test.go

@@ -14,7 +14,7 @@ var api = func() ton.APIClientWrapped {
 	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
 	defer cancel()
 
-	err := client.AddConnectionsFromConfigUrl(ctx, "https://ton.org/global.config.json")
+	err := client.AddConnectionsFromConfigUrl(ctx, "https://tonutils.com/global.config.json")
 	if err != nil {
 		panic(err)
 	}

ton/integration_test.go

@@ -23,7 +23,7 @@ var apiTestNet = func() APIClientWrapped {
 	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
 	defer cancel()
 
-	err := client.AddConnectionsFromConfigUrl(ctx, "https://ton-blockchain.github.io/testnet-global.config.json")
+	err := client.AddConnectionsFromConfigUrl(ctx, "https://tonutils.com/testnet-global.config.json")
 	if err != nil {
 		panic(err)
 	}
@@ -37,7 +37,7 @@ var api = func() APIClientWrapped {
 	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
 	defer cancel()
 
-	cfg, err := liteclient.GetConfigFromUrl(ctx, "https://ton.org/global.config.json")
+	cfg, err := liteclient.GetConfigFromUrl(ctx, "https://tonutils.com/global.config.json")
 	if err != nil {
 		panic(err)
 	}
@@ -621,7 +621,7 @@ func TestAccountStorage_LoadFromCell_ExtraCurrencies(t *testing.T) {
 }
 
 func TestAPIClient_GetBlockProofForward(t *testing.T) {
-	cfg, err := liteclient.GetConfigFromUrl(context.Background(), "https://ton.org/global.config.json")
+	cfg, err := liteclient.GetConfigFromUrl(context.Background(), "https://tonutils.com/global.config.json")
 	if err != nil {
 		t.Fatal("get cfg err:", err.Error())
 		return

ton/jetton/integration_test.go

@@ -21,7 +21,7 @@ var api = func() ton.APIClientWrapped {
 	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
 	defer cancel()
 
-	err := client.AddConnectionsFromConfigUrl(ctx, "https://ton-blockchain.github.io/testnet-global.config.json")
+	err := client.AddConnectionsFromConfigUrl(ctx, "https://tonutils.com/testnet-global.config.json")
 	if err != nil {
 		panic(err)
 	}

ton/nft/integration_test.go

@@ -25,7 +25,7 @@ var api = func() ton.APIClientWrapped {
 	ctx, cancel := context.WithTimeout(context.Background(), 3*time.Second)
 	defer cancel()
 
-	err := client.AddConnectionsFromConfigUrl(ctx, "https://ton-blockchain.github.io/testnet-global.config.json")
+	err := client.AddConnectionsFromConfigUrl(ctx, "https://tonutils.com/testnet-global.config.json")
 	if err != nil {
 		panic(err)
 	}

ton/payments/integration_test.go

@@ -23,7 +23,7 @@ var api = func() ton.APIClientWrapped {
 	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
 	defer cancel()
 
-	err := client.AddConnectionsFromConfigUrl(ctx, "https://ton-blockchain.github.io/testnet-global.config.json")
+	err := client.AddConnectionsFromConfigUrl(ctx, "https://tonutils.com/testnet-global.config.json")
 	if err != nil {
 		panic(err)
 	}

ton/runmethod.go

@@ -28,7 +28,7 @@ type RunSmcMethod struct {
 	ID       *BlockIDExt `tl:"struct"`
 	Account  AccountID   `tl:"struct"`
 	MethodID uint64      `tl:"long"`
-	Params   *cell.Cell  `tl:"cell"`
+	Params   *cell.Cell  `tl:"cell optional"`
 }
 
 type RunMethodResult struct {

ton/wallet/integration_test.go

@@ -27,7 +27,7 @@ var api = func() ton.APIClientWrapped {
 	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
 	defer cancel()
 
-	err := client.AddConnectionsFromConfigUrl(ctx, "https://ton-blockchain.github.io/testnet-global.config.json")
+	err := client.AddConnectionsFromConfigUrl(ctx, "https://tonutils.com/testnet-global.config.json")
 	if err != nil {
 		panic(err)
 	}
@@ -41,7 +41,7 @@ var apiMain = func() ton.APIClientWrapped {
 	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
 	defer cancel()
 
-	err := client.AddConnectionsFromConfigUrl(ctx, "https://ton.org/global.config.json")
+	err := client.AddConnectionsFromConfigUrl(ctx, "https://tonutils.com/global.config.json")
 	if err != nil {
 		panic(err)
 	}