Bind Feishu identity to OpenVPN sessions and refine management UI

backend/internal/sessionmgr/sessionmgr.go

@@ -7,6 +7,7 @@ import (
 	"time"
 
 	"vpn-platform/backend/internal/core"
+	"vpn-platform/backend/internal/identityprovider"
 	"vpn-platform/backend/internal/model"
 	"vpn-platform/backend/internal/store"
 )
@@ -28,6 +29,13 @@ func SyncSessions(tunnelID uint, protocol string, clients []ClientInfo) {
 		return
 	}
 	now := time.Now()
+	subjects := make([]string, 0, len(clients))
+	for _, client := range clients {
+		subjects = append(subjects, client.Username)
+	}
+	var tunnel model.Tunnel
+	store.DB.First(&tunnel, tunnelID)
+	names := identityprovider.ProfileNames(&tunnel, subjects)
 
 	// 1. 收集当前在线的标识 key（username|realAddress）
 	currentKeys := map[string]bool{}
@@ -44,10 +52,12 @@ func SyncSessions(tunnelID uint, protocol string, clients []ClientInfo) {
 			// 已有会话 → 更新流量
 			store.DB.Model(&existing).Updates(map[string]interface{}{
 				"rx_bytes": c.RxBytes, "tx_bytes": c.TxBytes,
+				"display_name": names[c.Username],
 			})
 		} else {
 			// 新连接 → 创建会话 + 审计日志
 			session := model.VPNSession{
+				DisplayName:    names[c.Username],
 				TunnelID:       tunnelID,
 				Username:       c.Username,
 				Protocol:       protocol,
@@ -75,7 +85,7 @@ func SyncSessions(tunnelID uint, protocol string, clients []ClientInfo) {
 		key := s.Username + "|" + s.RealAddress
 		if !currentKeys[key] {
 			store.DB.Model(&s).Updates(map[string]interface{}{
-				"status":         "disconnected",
+				"status":          "disconnected",
 				"disconnected_at": now,
 			})
 			duration := now.Sub(s.ConnectedAt).Round(time.Second)
@@ -84,16 +94,6 @@ func SyncSessions(tunnelID uint, protocol string, clients []ClientInfo) {
 		}
 	}
 
-	// 3. 如果 clients 为空（隧道无在线用户），标记该隧道所有 active 会话为 disconnected
-	if len(clients) == 0 {
-		for _, s := range activeSessions {
-			store.DB.Model(&s).Updates(map[string]interface{}{
-				"status":         "disconnected",
-				"disconnected_at": now,
-			})
-			LogConnection(tunnelID, s.Username, "disconnect", s.RealAddress, "隧道无在线用户")
-		}
-	}
 }
 
 // SyncFromPeers 从 core.Status.Peers 同步（WireGuard 用）
@@ -132,12 +132,16 @@ func LogConnection(tunnelID uint, username, event, ip, detail string) {
 	if store.DB == nil {
 		return
 	}
+	var tunnel model.Tunnel
+	store.DB.First(&tunnel, tunnelID)
+	names := identityprovider.ProfileNames(&tunnel, []string{username})
 	store.DB.Create(&model.ConnectionLog{
-		TunnelID:  tunnelID,
-		Username:  username,
-		Event:     event,
-		IPAddress: ip,
-		Detail:    detail,
+		DisplayName: names[username],
+		TunnelID:    tunnelID,
+		Username:    username,
+		Event:       event,
+		IPAddress:   ip,
+		Detail:      detail,
 	})
 }