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4 Commits

Author SHA1 Message Date
Viktor Liu
0a00edf77d Restore go.mod versions and raise wasm size limit to 57MiB 2026-05-12 14:56:38 +02:00
Viktor Liu
0f3d89f495 Merge remote-tracking branch 'origin/main' into wasm-websocket-dial 2026-05-12 14:55:37 +02:00
Viktor Liu
e230cf1d96 Merge remote-tracking branch 'origin/main' into wasm-websocket-dial
# Conflicts:
#	go.mod
#	go.sum
2026-05-11 10:38:37 +02:00
Viktor Liu
fbd74d3867 Add dialWebSocket method to WASM client 2026-04-24 12:06:11 +02:00
9 changed files with 414 additions and 54 deletions

View File

@@ -61,8 +61,8 @@ jobs:
echo "Size: ${SIZE} bytes (${SIZE_MB} MB)"
if [ ${SIZE} -gt 58720256 ]; then
echo "Wasm binary size (${SIZE_MB}MB) exceeds 56MB limit!"
if [ ${SIZE} -gt 59768832 ]; then
echo "Wasm binary size (${SIZE_MB}MB) exceeds 57MB limit!"
exit 1
fi

View File

@@ -252,10 +252,6 @@ func (m *Manager) writeSSHConfig(sshConfig string) error {
return fmt.Errorf("write SSH config file %s: %w", tmpPath, err)
}
if err := os.Chmod(tmpPath, 0644); err != nil {
return fmt.Errorf("chmod SSH config file %s: %w", tmpPath, err)
}
if err := os.Rename(tmpPath, sshConfigPath); err != nil {
return fmt.Errorf("rename SSH config %s -> %s: %w", tmpPath, sshConfigPath, err)
}

View File

@@ -21,6 +21,7 @@ import (
"github.com/netbirdio/netbird/client/wasm/internal/http"
"github.com/netbirdio/netbird/client/wasm/internal/rdp"
"github.com/netbirdio/netbird/client/wasm/internal/ssh"
nbwebsocket "github.com/netbirdio/netbird/client/wasm/internal/websocket"
"github.com/netbirdio/netbird/util"
)
@@ -30,6 +31,7 @@ const (
pingTimeout = 10 * time.Second
defaultLogLevel = "warn"
defaultSSHDetectionTimeout = 20 * time.Second
dialWebSocketTimeout = 30 * time.Second
icmpEchoRequest = 8
icmpCodeEcho = 0
@@ -677,6 +679,7 @@ func createClientObject(client *netbird.Client) js.Value {
obj["createSSHConnection"] = createSSHMethod(client)
obj["proxyRequest"] = createProxyRequestMethod(client)
obj["createRDPProxy"] = createRDPProxyMethod(client)
obj["dialWebSocket"] = createDialWebSocketMethod(client)
obj["status"] = createStatusMethod(client)
obj["statusSummary"] = createStatusSummaryMethod(client)
obj["statusDetail"] = createStatusDetailMethod(client)
@@ -691,6 +694,74 @@ func createClientObject(client *netbird.Client) js.Value {
return js.ValueOf(obj)
}
func createDialWebSocketMethod(client *netbird.Client) js.Func {
return js.FuncOf(func(_ js.Value, args []js.Value) any {
url, protocols, timeout, errVal := parseDialWebSocketArgs(args)
if !errVal.IsUndefined() {
return errVal
}
return createPromise(func(resolve, reject js.Value) {
ctx, cancel := context.WithTimeout(context.Background(), timeout)
defer cancel()
conn, err := nbwebsocket.Dial(ctx, client, url, protocols)
if err != nil {
reject.Invoke(js.ValueOf(fmt.Sprintf("dial websocket: %v", err)))
return
}
resolve.Invoke(nbwebsocket.NewJSInterface(conn))
})
})
}
func parseDialWebSocketArgs(args []js.Value) (url string, protocols []string, timeout time.Duration, errVal js.Value) {
if len(args) < 1 || args[0].Type() != js.TypeString {
return "", nil, 0, js.ValueOf("error: dialWebSocket requires a URL string argument")
}
url = args[0].String()
if len(args) >= 2 && !args[1].IsNull() && !args[1].IsUndefined() {
arr, err := jsStringArray(args[1])
if err != nil {
return "", nil, 0, js.ValueOf(fmt.Sprintf("error: protocols: %v", err))
}
protocols = arr
}
timeout = dialWebSocketTimeout
if len(args) >= 3 && !args[2].IsNull() && !args[2].IsUndefined() {
if args[2].Type() != js.TypeNumber {
return "", nil, 0, js.ValueOf("error: timeoutMs must be a number")
}
timeoutMs := args[2].Int()
if timeoutMs <= 0 {
return "", nil, 0, js.ValueOf("error: timeout must be positive")
}
timeout = time.Duration(timeoutMs) * time.Millisecond
}
return url, protocols, timeout, js.Undefined()
}
// jsStringArray converts a JS array of strings to a Go []string.
func jsStringArray(v js.Value) ([]string, error) {
if !v.InstanceOf(js.Global().Get("Array")) {
return nil, fmt.Errorf("expected array")
}
n := v.Length()
out := make([]string, n)
for i := 0; i < n; i++ {
el := v.Index(i)
if el.Type() != js.TypeString {
return nil, fmt.Errorf("element %d is not a string", i)
}
out[i] = el.String()
}
return out, nil
}
// netBirdClientConstructor acts as a JavaScript constructor function
func netBirdClientConstructor(_ js.Value, args []js.Value) any {
return js.Global().Get("Promise").New(js.FuncOf(func(_ js.Value, promiseArgs []js.Value) any {

View File

@@ -0,0 +1,304 @@
//go:build js
package websocket
import (
"context"
"encoding/binary"
"errors"
"fmt"
"io"
"net"
"sync"
"syscall/js"
"github.com/gobwas/ws"
"github.com/gobwas/ws/wsutil"
netbird "github.com/netbirdio/netbird/client/embed"
log "github.com/sirupsen/logrus"
)
type closeError struct {
code uint16
reason string
}
func (e *closeError) Error() string {
return fmt.Sprintf("websocket closed: %d %s", e.code, e.reason)
}
// bufferedConn fronts a net.Conn with a reader that serves any bytes buffered
// during the WebSocket handshake before falling through to the raw conn.
type bufferedConn struct {
net.Conn
r io.Reader
}
func (c *bufferedConn) Read(p []byte) (int, error) { return c.r.Read(p) }
// Conn wraps a WebSocket connection over a NetBird TCP connection.
type Conn struct {
conn net.Conn
mu sync.Mutex
closed chan struct{}
closeOnce sync.Once
closeErr error
}
// Dial establishes a WebSocket connection to the given URL through the NetBird network.
// Optional protocols are sent via the Sec-WebSocket-Protocol header.
func Dial(ctx context.Context, client *netbird.Client, rawURL string, protocols []string) (*Conn, error) {
d := ws.Dialer{
NetDial: client.Dial,
Protocols: protocols,
}
conn, br, _, err := d.Dial(ctx, rawURL)
if err != nil {
return nil, fmt.Errorf("websocket dial: %w", err)
}
// br is non-nil when the server pushed frames alongside the handshake
// response; those bytes live in the bufio.Reader and must be drained
// before reading from conn, otherwise we'd skip the first frames.
if br != nil {
if br.Buffered() > 0 {
conn = &bufferedConn{Conn: conn, r: io.MultiReader(br, conn)}
} else {
ws.PutReader(br)
}
}
return &Conn{
conn: conn,
closed: make(chan struct{}),
}, nil
}
// ReadMessage reads the next WebSocket message, handling control frames automatically.
func (c *Conn) ReadMessage() (ws.OpCode, []byte, error) {
for {
msgs, err := wsutil.ReadServerMessage(c.conn, nil)
if err != nil {
return 0, nil, err
}
for _, msg := range msgs {
if msg.OpCode.IsControl() {
if err := c.handleControl(msg); err != nil {
return 0, nil, err
}
continue
}
return msg.OpCode, msg.Payload, nil
}
}
}
func (c *Conn) handleControl(msg wsutil.Message) error {
switch msg.OpCode {
case ws.OpPing:
c.mu.Lock()
defer c.mu.Unlock()
return wsutil.WriteClientMessage(c.conn, ws.OpPong, msg.Payload)
case ws.OpClose:
code, reason := parseClosePayload(msg.Payload)
return &closeError{code: code, reason: reason}
default:
return nil
}
}
// WriteText sends a text WebSocket message.
func (c *Conn) WriteText(data []byte) error {
c.mu.Lock()
defer c.mu.Unlock()
return wsutil.WriteClientMessage(c.conn, ws.OpText, data)
}
// WriteBinary sends a binary WebSocket message.
func (c *Conn) WriteBinary(data []byte) error {
c.mu.Lock()
defer c.mu.Unlock()
return wsutil.WriteClientMessage(c.conn, ws.OpBinary, data)
}
// Close sends a close frame with StatusNormalClosure and closes the underlying connection.
func (c *Conn) Close() error {
return c.closeWith(ws.StatusNormalClosure, "")
}
// closeWith sends a close frame with the given code/reason and closes the underlying connection.
// Used to echo the server's code when responding to a server-initiated close per RFC 6455 §5.5.1.
func (c *Conn) closeWith(code ws.StatusCode, reason string) error {
var first bool
c.closeOnce.Do(func() {
first = true
close(c.closed)
c.mu.Lock()
_ = wsutil.WriteClientMessage(c.conn, ws.OpClose, ws.NewCloseFrameBody(code, reason))
c.mu.Unlock()
c.closeErr = c.conn.Close()
})
if !first {
return net.ErrClosed
}
return c.closeErr
}
// NewJSInterface creates a JavaScript object wrapping the WebSocket connection.
// It exposes: send(string|Uint8Array), close(), and callback properties
// onmessage, onclose, onerror.
//
// Callback properties may be set from the JS thread while the read loop
// goroutine reads them. In WASM this is safe because Go and JS share a
// single thread, but the design would need synchronization on
// multi-threaded runtimes.
func NewJSInterface(conn *Conn) js.Value {
obj := js.Global().Get("Object").Call("create", js.Null())
sendFunc := js.FuncOf(func(_ js.Value, args []js.Value) any {
if len(args) < 1 {
log.Errorf("websocket send requires a data argument")
return js.ValueOf(false)
}
data := args[0]
switch data.Type() {
case js.TypeString:
if err := conn.WriteText([]byte(data.String())); err != nil {
log.Errorf("failed to send websocket text: %v", err)
return js.ValueOf(false)
}
default:
buf, err := jsToBytes(data)
if err != nil {
log.Errorf("failed to convert js value to bytes: %v", err)
return js.ValueOf(false)
}
if err := conn.WriteBinary(buf); err != nil {
log.Errorf("failed to send websocket binary: %v", err)
return js.ValueOf(false)
}
}
return js.ValueOf(true)
})
obj.Set("send", sendFunc)
closeFunc := js.FuncOf(func(_ js.Value, _ []js.Value) any {
if err := conn.Close(); err != nil {
log.Debugf("failed to close websocket: %v", err)
}
return js.Undefined()
})
obj.Set("close", closeFunc)
go func() {
defer func() {
if err := conn.Close(); err != nil && !errors.Is(err, net.ErrClosed) {
log.Debugf("close websocket on readLoop exit: %v", err)
}
}()
readLoop(conn, obj)
// Undefining before Release turns post-close JS calls into TypeError
// instead of a silent "call to released function".
obj.Set("send", js.Undefined())
obj.Set("close", js.Undefined())
sendFunc.Release()
closeFunc.Release()
}()
return obj
}
func jsToBytes(data js.Value) ([]byte, error) {
var uint8Array js.Value
switch {
case data.InstanceOf(js.Global().Get("Uint8Array")):
uint8Array = data
case data.InstanceOf(js.Global().Get("ArrayBuffer")):
uint8Array = js.Global().Get("Uint8Array").New(data)
default:
return nil, fmt.Errorf("send: unsupported data type, use string, Uint8Array, or ArrayBuffer")
}
buf := make([]byte, uint8Array.Get("length").Int())
js.CopyBytesToGo(buf, uint8Array)
return buf, nil
}
func readLoop(conn *Conn, obj js.Value) {
var ce *closeError
defer func() { invokeOnClose(obj, ce) }()
for {
select {
case <-conn.closed:
return
default:
}
op, payload, err := conn.ReadMessage()
if err != nil {
ce = handleReadError(conn, obj, err)
return
}
dispatchMessage(obj, op, payload)
}
}
func handleReadError(conn *Conn, obj js.Value, err error) *closeError {
var ce *closeError
if errors.As(err, &ce) {
if cerr := conn.closeWith(ws.StatusCode(ce.code), ce.reason); cerr != nil {
log.Debugf("failed to close websocket after server close frame: %v", cerr)
}
return ce
}
if errors.Is(err, io.EOF) || errors.Is(err, net.ErrClosed) {
return nil
}
if onerror := obj.Get("onerror"); onerror.Truthy() {
onerror.Invoke(js.ValueOf(err.Error()))
}
return nil
}
func invokeOnClose(obj js.Value, ce *closeError) {
onclose := obj.Get("onclose")
if !onclose.Truthy() {
return
}
if ce != nil {
onclose.Invoke(js.ValueOf(int(ce.code)), js.ValueOf(ce.reason))
return
}
onclose.Invoke()
}
func dispatchMessage(obj js.Value, op ws.OpCode, payload []byte) {
onmessage := obj.Get("onmessage")
if !onmessage.Truthy() {
return
}
switch op {
case ws.OpText:
onmessage.Invoke(js.ValueOf(string(payload)))
case ws.OpBinary:
uint8Array := js.Global().Get("Uint8Array").New(len(payload))
js.CopyBytesToJS(uint8Array, payload)
onmessage.Invoke(uint8Array)
}
}
func parseClosePayload(payload []byte) (uint16, string) {
if len(payload) < 2 {
return 1005, "" // RFC 6455: No Status Rcvd
}
code := binary.BigEndian.Uint16(payload[:2])
return code, string(payload[2:])
}

View File

@@ -67,10 +67,6 @@ func init() {
rootCmd.AddCommand(newTokenCommands())
}
func RootCmd() *cobra.Command {
return rootCmd
}
func Execute() error {
return rootCmd.Execute()
}
@@ -172,7 +168,7 @@ func initializeConfig() error {
// serverInstances holds all server instances created during startup.
type serverInstances struct {
relaySrv *relayServer.Server
mgmtSrv mgmtServer.Server
mgmtSrv *mgmtServer.BaseServer
signalSrv *signalServer.Server
healthcheck *healthcheck.Server
stunServer *stun.Server
@@ -328,24 +324,19 @@ func setupServerHooks(servers *serverInstances, cfg *CombinedConfig) {
return
}
if s, ok := servers.mgmtSrv.GetContainer(mgmtServer.ContainerKeyBaseServer); ok {
if baseServer, ok := s.(*mgmtServer.BaseServer); ok {
baseServer.AfterInit(func(s *mgmtServer.BaseServer) {
grpcSrv := s.GRPCServer()
servers.mgmtSrv.AfterInit(func(s *mgmtServer.BaseServer) {
grpcSrv := s.GRPCServer()
if servers.signalSrv != nil {
proto.RegisterSignalExchangeServer(grpcSrv, servers.signalSrv)
log.Infof("Signal server registered on port %s", cfg.Server.ListenAddress)
}
s.SetHandlerFunc(createCombinedHandler(grpcSrv, s.APIHandler(), servers.relaySrv, servers.metricsServer.Meter, cfg))
if servers.relaySrv != nil {
log.Infof("Relay WebSocket handler added (path: /relay)")
}
})
if servers.signalSrv != nil {
proto.RegisterSignalExchangeServer(grpcSrv, servers.signalSrv)
log.Infof("Signal server registered on port %s", cfg.Server.ListenAddress)
}
}
s.SetHandlerFunc(createCombinedHandler(grpcSrv, s.APIHandler(), servers.relaySrv, servers.metricsServer.Meter, cfg))
if servers.relaySrv != nil {
log.Infof("Relay WebSocket handler added (path: /relay)")
}
})
}
func startServers(wg *sync.WaitGroup, srv *relayServer.Server, httpHealthcheck *healthcheck.Server, stunServer *stun.Server, metricsServer *sharedMetrics.Metrics) {
@@ -355,32 +346,38 @@ func startServers(wg *sync.WaitGroup, srv *relayServer.Server, httpHealthcheck *
log.Infof("Relay WebSocket multiplexed on management port (no separate relay listener)")
}
wg.Go(func() {
wg.Add(1)
go func() {
defer wg.Done()
log.Infof("running metrics server: %s%s", metricsServer.Addr, metricsServer.Endpoint)
if err := metricsServer.ListenAndServe(); !errors.Is(err, http.ErrServerClosed) {
log.Fatalf("failed to start metrics server: %v", err)
}
})
}()
wg.Go(func() {
wg.Add(1)
go func() {
defer wg.Done()
if err := httpHealthcheck.ListenAndServe(); !errors.Is(err, http.ErrServerClosed) {
log.Fatalf("failed to start healthcheck server: %v", err)
}
})
}()
if stunServer != nil {
wg.Go(func() {
wg.Add(1)
go func() {
defer wg.Done()
if err := stunServer.Listen(); err != nil {
if errors.Is(err, stun.ErrServerClosed) {
return
}
log.Errorf("STUN server error: %v", err)
}
})
}()
}
}
func shutdownServers(ctx context.Context, srv *relayServer.Server, httpHealthcheck *healthcheck.Server, stunServer *stun.Server, mgmtSrv mgmtServer.Server, metricsServer *sharedMetrics.Metrics) error {
func shutdownServers(ctx context.Context, srv *relayServer.Server, httpHealthcheck *healthcheck.Server, stunServer *stun.Server, mgmtSrv *mgmtServer.BaseServer, metricsServer *sharedMetrics.Metrics) error {
var errs error
if err := httpHealthcheck.Shutdown(ctx); err != nil {
@@ -494,7 +491,7 @@ func handleTLSConfig(cfg *CombinedConfig) (*tls.Config, bool, error) {
return nil, false, nil
}
func createManagementServer(cfg *CombinedConfig, mgmtConfig *nbconfig.Config) (mgmtServer.Server, error) {
func createManagementServer(cfg *CombinedConfig, mgmtConfig *nbconfig.Config) (*mgmtServer.BaseServer, error) {
mgmt := cfg.Management
// Extract port from listen address
@@ -505,7 +502,7 @@ func createManagementServer(cfg *CombinedConfig, mgmtConfig *nbconfig.Config) (m
}
mgmtPort, _ := strconv.Atoi(portStr)
mgmtSrv := newServer(
mgmtSrv := mgmtServer.NewServer(
&mgmtServer.Config{
NbConfig: mgmtConfig,
DNSDomain: "",

View File

@@ -1,13 +0,0 @@
package cmd
import (
mgmtServer "github.com/netbirdio/netbird/management/internals/server"
)
var newServer = func(cfg *mgmtServer.Config) mgmtServer.Server {
return mgmtServer.NewServer(cfg)
}
func SetNewServer(fn func(*mgmtServer.Config) mgmtServer.Server) {
newServer = fn
}

3
go.mod
View File

@@ -54,6 +54,7 @@ require (
github.com/fsnotify/fsnotify v1.9.0
github.com/gliderlabs/ssh v0.3.8
github.com/go-jose/go-jose/v4 v4.1.4
github.com/gobwas/ws v1.4.0
github.com/godbus/dbus/v5 v5.1.0
github.com/golang-jwt/jwt/v5 v5.3.1
github.com/golang/mock v1.6.0
@@ -211,6 +212,8 @@ require (
github.com/go-viper/mapstructure/v2 v2.5.0 // indirect
github.com/go-webauthn/webauthn v0.16.4 // indirect
github.com/go-webauthn/x v0.2.3 // indirect
github.com/gobwas/httphead v0.1.0 // indirect
github.com/gobwas/pool v0.2.1 // indirect
github.com/goccy/go-yaml v1.18.0 // indirect
github.com/gogo/protobuf v1.3.2 // indirect
github.com/golang-jwt/jwt/v4 v4.5.2 // indirect

7
go.sum
View File

@@ -247,6 +247,12 @@ github.com/go-webauthn/webauthn v0.16.4 h1:R9jqR/cYZa7hRquFF7Za/8qoH/K/TIs1/Q/4C
github.com/go-webauthn/webauthn v0.16.4/go.mod h1:SU2ljAgToTV/YLPI0C05QS4qn+e04WpB5g1RMfcZfS4=
github.com/go-webauthn/x v0.2.3 h1:8oArS+Rc1SWFLXhE17KZNx258Z4kUSyaDgsSncCO5RA=
github.com/go-webauthn/x v0.2.3/go.mod h1:tM04GF3V6VYq79AZMl7vbj4q6pz9r7L2criWRzbWhPk=
github.com/gobwas/httphead v0.1.0 h1:exrUm0f4YX0L7EBwZHuCF4GDp8aJfVeBrlLQrs6NqWU=
github.com/gobwas/httphead v0.1.0/go.mod h1:O/RXo79gxV8G+RqlR/otEwx4Q36zl9rqC5u12GKvMCM=
github.com/gobwas/pool v0.2.1 h1:xfeeEhW7pwmX8nuLVlqbzVc7udMDrwetjEv+TZIz1og=
github.com/gobwas/pool v0.2.1/go.mod h1:q8bcK0KcYlCgd9e7WYLm9LpyS+YeLd8JVDW6WezmKEw=
github.com/gobwas/ws v1.4.0 h1:CTaoG1tojrh4ucGPcoJFiAQUAsEWekEWvLy7GsVNqGs=
github.com/gobwas/ws v1.4.0/go.mod h1:G3gNqMNtPppf5XUz7O4shetPpcZ1VJ7zt18dlUeakrc=
github.com/goccy/go-yaml v1.18.0 h1:8W7wMFS12Pcas7KU+VVkaiCng+kG8QiFeFwzFb+rwuw=
github.com/goccy/go-yaml v1.18.0/go.mod h1:XBurs7gK8ATbW4ZPGKgcbrY1Br56PdM69F7LkFRi1kA=
github.com/godbus/dbus/v5 v5.1.0 h1:4KLkAxT3aOY8Li4FRJe/KvhoNFFxo0m6fNuFUO8QJUk=
@@ -840,6 +846,7 @@ golang.org/x/sys v0.0.0-20220908164124-27713097b956/go.mod h1:oPkhp1MJrh7nUepCBc
golang.org/x/sys v0.1.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.2.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.7.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.8.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.10.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=

View File

@@ -34,8 +34,6 @@ const (
ManagementLegacyPort = 33073
// DefaultSelfHostedDomain is the default domain used for self-hosted fresh installs.
DefaultSelfHostedDomain = "netbird.selfhosted"
ContainerKeyBaseServer = "baseServer"
)
type Server interface {
@@ -93,7 +91,7 @@ type Config struct {
// NewServer initializes and configures a new Server instance
func NewServer(cfg *Config) *BaseServer {
s := &BaseServer{
return &BaseServer{
Config: cfg.NbConfig,
container: make(map[string]any),
dnsDomain: cfg.DNSDomain,
@@ -106,9 +104,6 @@ func NewServer(cfg *Config) *BaseServer {
mgmtMetricsPort: cfg.MgmtMetricsPort,
autoResolveDomains: cfg.AutoResolveDomains,
}
s.container[ContainerKeyBaseServer] = s
return s
}
func (s *BaseServer) AfterInit(fn func(s *BaseServer)) {