Added new MessageType for ConnectReverse.

Added PublicAddress configuration to entry node.

cmd/entry/proxy.go

@@ -9,7 +9,7 @@ import (
 func main() {
 	// load the configuration
 	// from the environment
-	cfg, err := config.LoadConfig[config.ProxyConfig]()
+	cfg, err := config.LoadConfig[config.EntryConfig]()
 	if err != nil {
 		panic(err)
 	}

config/config.go

@@ -9,8 +9,9 @@ import (
 	"github.com/joho/godotenv"
 )
 
-type ProxyConfig struct {
-	NostrRelays []string `env:"NOSTR_RELAYS" envSeparator:";"`
+type EntryConfig struct {
+	NostrRelays   []string `env:"NOSTR_RELAYS" envSeparator:";"`
+	PublicAddress string   `env:"PUBLIC_ADDRESS"`
 }
 
 type ExitConfig struct {

exit/exit.go

@@ -231,7 +231,7 @@ func (e *Exit) handleConnect(ctx context.Context, msg nostr.IncomingEvent, proto
 func (e *Exit) handleConnectReverse(ctx context.Context, protocolMessage *protocol.Message, isTLS bool) {
 	e.mutexMap.Lock(protocolMessage.Key.String())
 	defer e.mutexMap.Unlock(protocolMessage.Key.String())
-	connection, err := net.Dial("tcp", ":1234")
+	connection, err := net.Dial("tcp", protocolMessage.Destination)
 	if err != nil {
 		return
 	}

netstr/dial.go

@@ -11,13 +11,20 @@ import (
 	"strings"
 )
 
+type DialOptions struct {
+	Pool          *nostr.SimplePool
+	PublicAddress string
+	ConnectionID  uuid.UUID
+	MessageType   protocol.MessageType
+}
+
 // DialSocks connects to a destination using the provided SimplePool and returns a Dialer function.
 // It creates a new Connection using the specified context, private key, destination address, subscription flag, and connectionID.
 // It parses the destination address to get the public key and relays.
 // It creates a signed event using the private key, public key, and destination address.
 // It ensures that the relays are available in the pool and publishes the signed event to each relay.
 // Finally, it returns the Connection and nil error. If there are any errors, nil connection and the error are returned.
-func DialSocks(pool *nostr.SimplePool, connectionID uuid.UUID) func(ctx context.Context, net_, addr string) (net.Conn, error) {
+func DialSocks(options DialOptions) func(ctx context.Context, net_, addr string) (net.Conn, error) {
 	return func(ctx context.Context, net_, addr string) (net.Conn, error) {
 		addr = strings.ReplaceAll(addr, ".", "")
 		key := nostr.GeneratePrivateKey()
@@ -25,7 +32,7 @@ func DialSocks(pool *nostr.SimplePool, connectionID uuid.UUID) func(ctx context.
 			WithPrivateKey(key),
 			WithDst(addr),
 			WithSub(),
-			WithUUID(connectionID))
+			WithUUID(options.ConnectionID))
 
 		publicKey, relays, err := ParseDestination(addr)
 		if err != nil {
@@ -38,16 +45,20 @@ func DialSocks(pool *nostr.SimplePool, connectionID uuid.UUID) func(ctx context.
 			return nil, err
 		}
 		opts := []protocol.MessageOption{
-			protocol.WithType(protocol.MessageConnectReverse),
-			protocol.WithUUID(connectionID),
-			protocol.WithDestination(addr),
+			protocol.WithType(options.MessageType),
+			protocol.WithUUID(options.ConnectionID),
+		}
+		if options.PublicAddress != "" {
+			opts = append(opts, protocol.WithDestination(options.PublicAddress))
+		} else {
+			opts = append(opts, protocol.WithDestination(addr)) // todo -- use public key instead
 		}
 		ev, err := signer.CreateSignedEvent(publicKey, protocol.KindEphemeralEvent,
 			nostr.Tags{nostr.Tag{"p", publicKey}},
 			opts...)
 
 		for _, relayUrl := range relays {
-			relay, err := pool.EnsureRelay(relayUrl)
+			relay, err := options.Pool.EnsureRelay(relayUrl)
 			if err != nil {
 				slog.Error("error creating relay", err)
 				continue

proxy/proxy.go

@@ -11,14 +11,14 @@ import (
 )
 
 type Proxy struct {
-	config *config.ProxyConfig // the configuration for the gateway
+	config *config.EntryConfig // the configuration for the gateway
 	// a list of nostr relays to publish events to
 	relays      []*nostr.Relay // deprecated -- should be used for default relay configuration
 	pool        *nostr.SimplePool
 	socksServer *socks5.Server
 }
 
-func New(ctx context.Context, config *config.ProxyConfig) *Proxy {
+func New(ctx context.Context, config *config.EntryConfig) *Proxy {
 	s := &Proxy{
 		config: config,
 		pool:   nostr.NewSimplePool(ctx),
@@ -32,7 +32,7 @@ func New(ctx context.Context, config *config.ProxyConfig) *Proxy {
 		BindIP:      net.IP{0, 0, 0, 0},
 		Logger:      nil,
 		Dial:        nil,
-	}, s.pool)
+	}, s.pool, config)
 	if err != nil {
 		panic(err)
 	}

socks5/request.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"fmt"
 	"github.com/asmogo/nws/netstr"
+	"github.com/asmogo/nws/protocol"
 	"github.com/google/uuid"
 	"io"
 	"net"
@@ -169,10 +170,20 @@ func (s *Server) handleConnect(ctx context.Context, conn net.Conn, req *Request)
 	// Attempt to connect
 	dial := s.config.Dial
 	ch := make(chan net.Conn)
+	connectionID := uuid.New()
+	options := netstr.DialOptions{
+		Pool:          s.pool,
+		PublicAddress: s.config.entryConfig.PublicAddress,
+		ConnectionID:  connectionID,
+	}
 	if dial == nil {
-		connectionID := uuid.New()
-		s.tcpListener.AddConnectChannel(connectionID, ch)
-		dial = netstr.DialSocks(s.pool, connectionID)
+		if s.tcpListener != nil {
+			s.tcpListener.AddConnectChannel(connectionID, ch)
+			options.MessageType = protocol.MessageConnectReverse
+		} else {
+			options.MessageType = protocol.MessageConnect
+		}
+		dial = netstr.DialSocks(options)
 	}
 	target, err := dial(ctx, "tcp", req.realDestAddr.FQDN)
 	if err != nil {
@@ -197,11 +208,14 @@ func (s *Server) handleConnect(ctx context.Context, conn net.Conn, req *Request)
 		return fmt.Errorf("failed to send reply: %v", err)
 	}
 	// read
-
-	// wait for the connection
-	connR := <-ch
-	defer connR.Close()
-
+	var connR net.Conn
+	if options.MessageType == protocol.MessageConnectReverse {
+		// wait for the connection
+		connR = <-ch
+		defer connR.Close()
+	} else {
+		connR = target
+	}
 	// Start proxying
 	errCh := make(chan error, 2)
 	go Proxy(connR, conn, errCh)

socks5/socks5.go

@@ -3,6 +3,7 @@ package socks5
 import (
 	"bufio"
 	"fmt"
+	"github.com/asmogo/nws/config"
 	"github.com/nbd-wtf/go-nostr"
 	"log"
 	"net"
@@ -49,6 +50,8 @@ type Config struct {
 
 	// Optional function for dialing out
 	Dial func(ctx context.Context, network, addr string) (net.Conn, error)
+
+	entryConfig *config.EntryConfig
 }
 
 var ErrorNoServerAvailable = fmt.Errorf("no socks server available")
@@ -63,7 +66,7 @@ type Server struct {
 }
 
 // New creates a new Server and potentially returns an error
-func New(conf *Config, pool *nostr.SimplePool) (*Server, error) {
+func New(conf *Config, pool *nostr.SimplePool, config *config.EntryConfig) (*Server, error) {
 	// Ensure we have at least one authentication method enabled
 	if len(conf.AuthMethods) == 0 {
 		if conf.Credentials != nil {
@@ -87,15 +90,21 @@ func New(conf *Config, pool *nostr.SimplePool) (*Server, error) {
 	if conf.Logger == nil {
 		conf.Logger = log.New(os.Stdout, "", log.LstdFlags)
 	}
-	listener, err := NewTCPListener()
-	if err != nil {
-		return nil, err
+	if conf.entryConfig == nil {
+		conf.entryConfig = config
 	}
-	go listener.Start()
+
 	server := &Server{
-		config:      conf,
-		pool:        pool,
-		tcpListener: listener,
+		config: conf,
+		pool:   pool,
+	}
+	if conf.entryConfig.PublicAddress != "" {
+		listener, err := NewTCPListener()
+		if err != nil {
+			return nil, err
+		}
+		go listener.Start()
+		server.tcpListener = listener
 	}
 	server.authMethods = make(map[uint8]Authenticator)