feat: Add WebSocket support for real-time updates and enhance VLESS settings (#3605)

* feat: add support for trusted X-Forwarded-For and testseed parameters in VLESS settings

* chore: update Xray Core version to 25.12.8 in release workflow

* chore: update Xray Core version to 25.12.8 in Docker initialization script

* chore: bump version to 2.8.6 and add watcher for security changes in inbound modal

* refactor: remove default and random seed buttons from outbound form

* refactor: update VLESS form to rename 'Test Seed' to 'Vision Seed' and change button functionality for seed generation

* refactor: enhance TLS settings form layout with improved button styling and spacing

* feat: integrate WebSocket support for real-time updates on inbounds and Xray service status

* chore: downgrade version to 2.8.5

* refactor: translate comments to English

* fix: ensure testseed is initialized correctly for VLESS protocol and improve client handling in inbound modal

* refactor: simplify VLESS divider condition by removing unnecessary flow checks

* fix: add fallback date formatting for cases when IntlUtil is not available

* refactor: simplify WebSocket message handling by removing batching and ensuring individual message delivery

* refactor: disable WebSocket notifications in inbound and index HTML files

* refactor: enhance VLESS testseed initialization and button functionality in inbound modal

* fix:

* refactor: ensure proper WebSocket URL construction by normalizing basePath

* fix:

* fix:

* fix:

* refactor: update testseed methods for improved reactivity and binding in VLESS form

* logger info to debug

---------

Co-authored-by: lolka1333 <test123@gmail.com>

1 files changed, 189 insertions, 0 deletions

diff --git a/web/controller/websocket.go b/web/controller/websocket.go
new file mode 100644
index 00000000..0ad5c845
--- /dev/null
+++ b/web/controller/websocket.go
@@ -0,0 +1,189 @@
+package controller
+
+import (
+	"net/http"
+	"strings"
+	"time"
+
+	"github.com/google/uuid"
+	"github.com/mhsanaei/3x-ui/v2/logger"
+	"github.com/mhsanaei/3x-ui/v2/util/common"
+	"github.com/mhsanaei/3x-ui/v2/web/session"
+	"github.com/mhsanaei/3x-ui/v2/web/websocket"
+
+	"github.com/gin-gonic/gin"
+	ws "github.com/gorilla/websocket"
+)
+
+const (
+	// Time allowed to write a message to the peer
+	writeWait = 10 * time.Second
+
+	// Time allowed to read the next pong message from the peer
+	pongWait = 60 * time.Second
+
+	// Send pings to peer with this period (must be less than pongWait)
+	pingPeriod = (pongWait * 9) / 10
+
+	// Maximum message size allowed from peer
+	maxMessageSize = 512
+)
+
+var upgrader = ws.Upgrader{
+	ReadBufferSize:  4096, // Increased from 1024 for better performance
+	WriteBufferSize: 4096, // Increased from 1024 for better performance
+	CheckOrigin: func(r *http.Request) bool {
+		// Check origin for security
+		origin := r.Header.Get("Origin")
+		if origin == "" {
+			// Allow connections without Origin header (same-origin requests)
+			return true
+		}
+		// Get the host from the request
+		host := r.Host
+		// Extract scheme and host from origin
+		originURL := origin
+		// Simple check: origin should match the request host
+		// This prevents cross-origin WebSocket hijacking
+		if strings.HasPrefix(originURL, "http://") || strings.HasPrefix(originURL, "https://") {
+			// Extract host from origin
+			originHost := strings.TrimPrefix(strings.TrimPrefix(originURL, "http://"), "https://")
+			if idx := strings.Index(originHost, "/"); idx != -1 {
+				originHost = originHost[:idx]
+			}
+			if idx := strings.Index(originHost, ":"); idx != -1 {
+				originHost = originHost[:idx]
+			}
+			// Compare hosts (without port)
+			requestHost := host
+			if idx := strings.Index(requestHost, ":"); idx != -1 {
+				requestHost = requestHost[:idx]
+			}
+			return originHost == requestHost || originHost == "" || requestHost == ""
+		}
+		return false
+	},
+}
+
+// WebSocketController handles WebSocket connections for real-time updates
+type WebSocketController struct {
+	BaseController
+	hub *websocket.Hub
+}
+
+// NewWebSocketController creates a new WebSocket controller
+func NewWebSocketController(hub *websocket.Hub) *WebSocketController {
+	return &WebSocketController{
+		hub: hub,
+	}
+}
+
+// HandleWebSocket handles WebSocket connections
+func (w *WebSocketController) HandleWebSocket(c *gin.Context) {
+	// Check authentication
+	if !session.IsLogin(c) {
+		logger.Warningf("Unauthorized WebSocket connection attempt from %s", getRemoteIp(c))
+		c.AbortWithStatus(http.StatusUnauthorized)
+		return
+	}
+
+	// Upgrade connection to WebSocket
+	conn, err := upgrader.Upgrade(c.Writer, c.Request, nil)
+	if err != nil {
+		logger.Error("Failed to upgrade WebSocket connection:", err)
+		return
+	}
+
+	// Create client
+	clientID := uuid.New().String()
+	client := &websocket.Client{
+		ID:     clientID,
+		Hub:    w.hub,
+		Send:   make(chan []byte, 512), // Increased from 256 to 512 to prevent overflow
+		Topics: make(map[websocket.MessageType]bool),
+	}
+
+	// Register client
+	w.hub.Register(client)
+	logger.Debugf("WebSocket client %s registered from %s", clientID, getRemoteIp(c))
+
+	// Start goroutines for reading and writing
+	go w.writePump(client, conn)
+	go w.readPump(client, conn)
+}
+
+// readPump pumps messages from the WebSocket connection to the hub
+func (w *WebSocketController) readPump(client *websocket.Client, conn *ws.Conn) {
+	defer func() {
+		if r := common.Recover("WebSocket readPump panic"); r != nil {
+			logger.Error("WebSocket readPump panic recovered:", r)
+		}
+		w.hub.Unregister(client)
+		conn.Close()
+	}()
+
+	conn.SetReadDeadline(time.Now().Add(pongWait))
+	conn.SetPongHandler(func(string) error {
+		conn.SetReadDeadline(time.Now().Add(pongWait))
+		return nil
+	})
+	conn.SetReadLimit(maxMessageSize)
+
+	for {
+		_, message, err := conn.ReadMessage()
+		if err != nil {
+			if ws.IsUnexpectedCloseError(err, ws.CloseGoingAway, ws.CloseAbnormalClosure) {
+				logger.Debugf("WebSocket read error for client %s: %v", client.ID, err)
+			}
+			break
+		}
+
+		// Validate message size
+		if len(message) > maxMessageSize {
+			logger.Warningf("WebSocket message from client %s exceeds max size: %d bytes", client.ID, len(message))
+			continue
+		}
+
+		// Handle incoming messages (e.g., subscription requests)
+		// For now, we'll just log them
+		logger.Debugf("Received WebSocket message from client %s: %s", client.ID, string(message))
+	}
+}
+
+// writePump pumps messages from the hub to the WebSocket connection
+func (w *WebSocketController) writePump(client *websocket.Client, conn *ws.Conn) {
+	ticker := time.NewTicker(pingPeriod)
+	defer func() {
+		if r := common.Recover("WebSocket writePump panic"); r != nil {
+			logger.Error("WebSocket writePump panic recovered:", r)
+		}
+		ticker.Stop()
+		conn.Close()
+	}()
+
+	for {
+		select {
+		case message, ok := <-client.Send:
+			conn.SetWriteDeadline(time.Now().Add(writeWait))
+			if !ok {
+				// Hub closed the channel
+				conn.WriteMessage(ws.CloseMessage, []byte{})
+				return
+			}
+
+			// Send each message individually (no batching)
+			// This ensures each JSON message is sent separately and can be parsed correctly
+			if err := conn.WriteMessage(ws.TextMessage, message); err != nil {
+				logger.Debugf("WebSocket write error for client %s: %v", client.ID, err)
+				return
+			}
+
+		case <-ticker.C:
+			conn.SetWriteDeadline(time.Now().Add(writeWait))
+			if err := conn.WriteMessage(ws.PingMessage, nil); err != nil {
+				logger.Debugf("WebSocket ping error for client %s: %v", client.ID, err)
+				return
+			}
+		}
+	}
+}