feat(other): add zeromq server with configration

.github/workflows/semantic-pr.yml

@@ -60,6 +60,7 @@ jobs:
             http
             jsonrpc
             nanomsg
+            zeromq
             windows
             linux
             macos

config/config.go

@@ -20,6 +20,7 @@
 	"github.com/pactus-project/pactus/www/http"
 	"github.com/pactus-project/pactus/www/jsonrpc"
 	"github.com/pactus-project/pactus/www/nanomsg"
+	"github.com/pactus-project/pactus/www/zmq"
 	"github.com/pelletier/go-toml/v2"
 )
 
@@ -47,6 +48,7 @@
 	HTTP          *http.Config      `toml:"http"`
 	WalletManager *wallet.Config    `toml:"-"`
 	Nanomsg       *nanomsg.Config   `toml:"nanomsg"`
+	ZeroMq        *zmq.Config       `toml:"zeromq"`
 }
 
 type BootstrapInfo struct {
@@ -99,6 +101,7 @@
 		JSONRPC:       jsonrpc.DefaultConfig(),
 		HTTP:          http.DefaultConfig(),
 		Nanomsg:       nanomsg.DefaultConfig(),
+		ZeroMq:        zmq.DefaultConfig(),
 		WalletManager: wallet.DefaultConfig(),
 	}
 
@@ -219,6 +222,11 @@
 	conf.HTTP.EnablePprof = true
 	conf.Nanomsg.Enable = true
 	conf.Nanomsg.Listen = "tcp://[::]:40799"
+	conf.ZeroMq.ZmqPubBlockInfo = "tcp://127.0.0.1:28332"
+	conf.ZeroMq.ZmqPubTxInfo = "tcp://127.0.0.1:28333"
+	conf.ZeroMq.ZmqPubRawBlock = "tcp://127.0.0.1:28334"
+	conf.ZeroMq.ZmqPubRawTx = "tcp://127.0.0.1:28335"
+	conf.ZeroMq.ZmqPubHWM = 1000
 
 	return conf
 }
@@ -296,6 +304,9 @@
 	if err := conf.GRPC.BasicCheck(); err != nil {
 		return err
 	}
+	if err := conf.ZeroMq.BasicCheck(); err != nil {
+		return err
+	}
 
 	return conf.HTTP.BasicCheck()
 }

config/example_config.toml

@@ -177,6 +177,7 @@
     _pool = 'error'
     _state = 'info'
     _sync = 'error'
+    _zmq = 'info'
     default = 'info'
 
 # `grpc` contains configuration of the gRPC module.
@@ -246,3 +247,32 @@
 
   # `listen` is the address for incoming connections to the nanomsg server.
   listen = 'tcp://127.0.0.1:40899'
+
+# ZeroMQ configuration.
+[zeromq]
+
+  # `zmqpubblockinfo` specifies the address for publishing block info notifications.
+  # Example: 'tcp://127.0.0.1:28332'
+  # Default is '', meaning the topic is disabled
+  zmqpubblockinfo = ''
+
+  # `zmqpubtxinfo` specifies the address for publishing transaction info notifications.
+  # Example: 'tcp://127.0.0.1:28332'
+  # Default is '', meaning the topic is disabled
+  zmqpubtxinfo = ''
+
+  # `zmqpubrawblock` specifies the address for publishing raw block notifications.
+  # Example: 'tcp://127.0.0.1:28332'
+  # Default is '', meaning the topic is disabled
+  zmqpubrawblock = ''
+
+  # `zmqpubrawtx` specifies the address for publishing raw transaction notifications.
+  # Example: 'tcp://127.0.0.1:28332'
+  # Default is '', meaning the topic is disabled
+  zmqpubrawtx = ''
+
+  # `zmqpubhwm` defines the High Watermark (HWM) for ZeroMQ message pipes.
+  # This parameter determines the maximum number of messages ZeroMQ can buffer before blocking the publishing of further messages.
+  # The watermark is applied uniformly to all active topics.
+  # Default is 1000
+  zmqpubhwm = 1000

go.mod

@@ -8,6 +8,7 @@ require (
 	github.com/c-bata/go-prompt v0.2.6
 	github.com/consensys/gnark-crypto v0.14.0
 	github.com/fxamacker/cbor/v2 v2.7.0
+	github.com/go-zeromq/zmq4 v0.17.0
 	github.com/gofrs/flock v0.12.1
 	github.com/google/shlex v0.0.0-20191202100458-e7afc7fbc510
 	github.com/google/uuid v1.6.0
@@ -68,6 +69,7 @@ require (
 	github.com/go-logr/logr v1.4.2 // indirect
 	github.com/go-logr/stdr v1.2.2 // indirect
 	github.com/go-task/slim-sprig/v3 v3.0.0 // indirect
+	github.com/go-zeromq/goczmq/v4 v4.2.2 // indirect
 	github.com/godbus/dbus/v5 v5.1.0 // indirect
 	github.com/gogo/protobuf v1.3.2 // indirect
 	github.com/golang/snappy v0.0.4 // indirect

go.sum

@@ -116,6 +116,10 @@ github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/me
 github.com/go-task/slim-sprig/v3 v3.0.0 h1:sUs3vkvUymDpBKi3qH1YSqBQk9+9D/8M2mN1vB6EwHI=
 github.com/go-task/slim-sprig/v3 v3.0.0/go.mod h1:W848ghGpv3Qj3dhTPRyJypKRiqCdHZiAzKg9hl15HA8=
 github.com/go-yaml/yaml v2.1.0+incompatible/go.mod h1:w2MrLa16VYP0jy6N7M5kHaCkaLENm+P+Tv+MfurjSw0=
+github.com/go-zeromq/goczmq/v4 v4.2.2 h1:HAJN+i+3NW55ijMJJhk7oWxHKXgAuSBkoFfvr8bYj4U=
+github.com/go-zeromq/goczmq/v4 v4.2.2/go.mod h1:Sm/lxrfxP/Oxqs0tnHD6WAhwkWrx+S+1MRrKzcxoaYE=
+github.com/go-zeromq/zmq4 v0.17.0 h1:r12/XdqPeRbuaF4C3QZJeWCt7a5vpJbslDH1rTXF+Kc=
+github.com/go-zeromq/zmq4 v0.17.0/go.mod h1:EQxjJD92qKnrsVMzAnx62giD6uJIPi1dMGZ781iCDtY=
 github.com/godbus/dbus/v5 v5.0.3/go.mod h1:xhWf0FNVPg57R7Z0UbKHbJfkEywrmjJnf7w5xrFpKfA=
 github.com/godbus/dbus/v5 v5.0.4/go.mod h1:xhWf0FNVPg57R7Z0UbKHbJfkEywrmjJnf7w5xrFpKfA=
 github.com/godbus/dbus/v5 v5.1.0 h1:4KLkAxT3aOY8Li4FRJe/KvhoNFFxo0m6fNuFUO8QJUk=

util/logger/config.go

@@ -29,6 +29,7 @@ func DefaultConfig() *Config {
 	conf.Levels["_grpc"] = "info"
 	conf.Levels["_nonomsg"] = "info"
 	conf.Levels["_jsonrpc"] = "info"
+	conf.Levels["_zmq"] = "info"
 	conf.Levels["_firewall"] = "warn"
 
 	return conf

util/logger/logger.go

@@ -54,6 +54,7 @@ func getLoggersInst() *logger {
 		conf.Levels["_pool"] = "debug"
 		conf.Levels["_http"] = "debug"
 		conf.Levels["_grpc"] = "debug"
+		conf.Levels["_zmq"] = "debug"
 		conf.Levels["_firewall"] = "debug"
 		globalInst = &logger{
 			config: conf,

util/testsuite/testsuite.go

@@ -3,6 +3,7 @@ package testsuite
 import (
 	"encoding/hex"
 	"math/rand"
+	"net"
 	"testing"
 	"time"
 
@@ -866,3 +867,12 @@ func (*TestSuite) HelperSignTransaction(prv crypto.PrivateKey, trx *tx.Tx) {
 	trx.SetSignature(sig)
 	trx.SetPublicKey(prv.PublicKey())
 }
+
+func (*TestSuite) FindFreePort() int {
+	listener, _ := net.Listen("tcp", "localhost:0")
+	defer func() {
+		_ = listener.Close()
+	}()
+
+	return listener.Addr().(*net.TCPAddr).Port
+}

www/zmq/block_info_publisher.go

@@ -0,0 +1,26 @@
+package zmq
+
+import (
+	"github.com/go-zeromq/zmq4"
+	"github.com/pactus-project/pactus/types/block"
+	"github.com/pactus-project/pactus/util/logger"
+)
+
+type blockInfoPub struct {
+	basePub
+}
+
+func newBlockInfoPub(socket zmq4.Socket, logger *logger.SubLogger) Publisher {
+	return &blockInfoPub{
+		basePub: basePub{
+			topic:     BlockInfo,
+			zmqSocket: socket,
+			logger:    logger,
+		},
+	}
+}
+
+func (*blockInfoPub) onNewBlock(_ *block.Block) {
+	// TODO implement me
+	panic("implement me")
+}

www/zmq/config.go

@@ -0,0 +1,92 @@
+package zmq
+
+import (
+	"errors"
+	"fmt"
+	"net/url"
+	"strings"
+	"time"
+)
+
+type Config struct {
+	ZmqPubBlockInfo string `toml:"zmqpubblockinfo"`
+	ZmqPubTxInfo    string `toml:"zmqpubtxinfo"`
+	ZmqPubRawBlock  string `toml:"zmqpubrawblock"`
+	ZmqPubRawTx     string `toml:"zmqpubrawtx"`
+	ZmqPubHWM       int    `toml:"zmqpubhwm"`
+
+	// Private config
+	ZmqAutomaticReconnect bool          `toml:"-"`
+	ZmqDialerRetryTime    time.Duration `toml:"-"`
+	ZmqDialerMaxRetries   int           `toml:"-"`
+}
+
+func DefaultConfig() *Config {
+	return &Config{
+		ZmqAutomaticReconnect: true,
+		ZmqDialerMaxRetries:   10,
+		ZmqDialerRetryTime:    250 * time.Millisecond,
+		ZmqPubHWM:             1000,
+	}
+}
+
+func (c *Config) BasicCheck() error {
+	if c.ZmqPubBlockInfo != "" {
+		if err := validateTopicSocket(c.ZmqPubBlockInfo); err != nil {
+			return err
+		}
+	}
+
+	if c.ZmqPubTxInfo != "" {
+		if err := validateTopicSocket(c.ZmqPubTxInfo); err != nil {
+			return err
+		}
+	}
+
+	if c.ZmqPubRawBlock != "" {
+		if err := validateTopicSocket(c.ZmqPubRawBlock); err != nil {
+			return err
+		}
+	}
+
+	if c.ZmqPubRawTx != "" {
+		if err := validateTopicSocket(c.ZmqPubRawTx); err != nil {
+			return err
+		}
+	}
+
+	if c.ZmqPubHWM < 0 {
+		return fmt.Errorf("invalid publisher hwm %d", c.ZmqPubHWM)
+	}
+
+	return nil
+}
+
+func validateTopicSocket(socket string) error {
+	addr, err := url.Parse(socket)
+	if err != nil {
+		return errors.New("failed to parse ZmqPub value: " + err.Error())
+	}
+
+	if addr.Scheme != "tcp" {
+		return errors.New("invalid scheme: zeromq socket schema")
+	}
+
+	if addr.Host == "" {
+		return errors.New("invalid host: host is empty")
+	}
+
+	parts := strings.Split(addr.Host, ":")
+	if len(parts) != 2 || parts[0] == "" || parts[1] == "" {
+		return errors.New("invalid host: missing or malformed host/port")
+	}
+
+	port := parts[1]
+	for _, r := range port {
+		if r < '0' || r > '9' {
+			return errors.New("invalid port: non-numeric characters detected")
+		}
+	}
+
+	return nil
+}

www/zmq/config_test.go

@@ -0,0 +1,82 @@
+package zmq
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestDefaultConfig(t *testing.T) {
+	cfg := DefaultConfig()
+
+	assert.NotNil(t, cfg, "DefaultConfig should not return nil")
+	assert.Equal(t, "", cfg.ZmqPubBlockInfo, "ZmqPubBlockInfo should be empty")
+	assert.Equal(t, "", cfg.ZmqPubTxInfo, "ZmqPubTxInfo should be empty")
+	assert.Equal(t, "", cfg.ZmqPubRawBlock, "ZmqPubRawBlock should be empty")
+	assert.Equal(t, "", cfg.ZmqPubRawTx, "ZmqPubRawTx should be empty")
+	assert.Equal(t, 1000, cfg.ZmqPubHWM, "ZmqPubHWM should default to 1000")
+}
+
+func TestBasicCheck(t *testing.T) {
+	testCases := []struct {
+		name      string
+		config    *Config
+		expectErr bool
+	}{
+		{
+			name: "Valid configuration",
+			config: &Config{
+				ZmqPubBlockInfo: "tcp://127.0.0.1:28332",
+				ZmqPubTxInfo:    "tcp://127.0.0.1:28333",
+				ZmqPubRawBlock:  "tcp://127.0.0.1:28334",
+				ZmqPubRawTx:     "tcp://127.0.0.1:28335",
+				ZmqPubHWM:       1000,
+			},
+			expectErr: false,
+		},
+		{
+			name: "Invalid scheme",
+			config: &Config{
+				ZmqPubBlockInfo: "udp://127.0.0.1:28332",
+			},
+			expectErr: true,
+		},
+		{
+			name: "Missing port",
+			config: &Config{
+				ZmqPubBlockInfo: "tcp://127.0.0.1",
+			},
+			expectErr: true,
+		},
+		{
+			name: "Empty host",
+			config: &Config{
+				ZmqPubBlockInfo: "tcp://:28332",
+			},
+			expectErr: true,
+		},
+		{
+			name: "Negative ZmqPubHWM",
+			config: &Config{
+				ZmqPubHWM: -1,
+			},
+			expectErr: true,
+		},
+		{
+			name:      "Empty configuration",
+			config:    DefaultConfig(),
+			expectErr: false,
+		},
+	}
+
+	for _, tc := range testCases {
+		t.Run(tc.name, func(t *testing.T) {
+			err := tc.config.BasicCheck()
+			if tc.expectErr {
+				assert.Error(t, err, "BasicCheck should return an error")
+			} else {
+				assert.NoError(t, err, "BasicCheck should not return an error")
+			}
+		})
+	}
+}

www/zmq/publisher.go

@@ -0,0 +1,28 @@
+package zmq
+
+import (
+	"github.com/go-zeromq/zmq4"
+	"github.com/pactus-project/pactus/types/block"
+	"github.com/pactus-project/pactus/util/logger"
+)
+
+type Publisher interface {
+	Address() string
+	TopicName() string
+
+	onNewBlock(blk *block.Block)
+}
+
+type basePub struct {
+	topic     Topic
+	zmqSocket zmq4.Socket
+	logger    *logger.SubLogger
+}
+
+func (b *basePub) Address() string {
+	return b.zmqSocket.Addr().String()
+}
+
+func (b *basePub) TopicName() string {
+	return b.topic.String()
+}