Merge 3b262cf180 into 28a17a80ec

* add ldap component

* fix: fix russian comments, tls cert verify default true

* feat: remove replaces go mod for local dev

database/db.go

@@ -37,6 +37,7 @@ func initModels() error {
 		&model.InboundClientIps{},
 		&xray.ClientTraffic{},
 		&model.HistoryOfSeeders{},
+		&model.Server{},
 	}
 	for _, model := range models {
 		if err := db.AutoMigrate(model); err != nil {

database/model/model.go

@@ -119,3 +119,12 @@ type Client struct {
 	CreatedAt  int64  `json:"created_at,omitempty"`         // Creation timestamp
 	UpdatedAt  int64  `json:"updated_at,omitempty"`         // Last update timestamp
 }
+
+type Server struct {
+	Id      int    `json:"id" gorm:"primaryKey;autoIncrement"`
+	Name    string `json:"name" gorm:"unique;not null"`
+	Address string `json:"address" gorm:"not null"`
+	Port    int    `json:"port" gorm:"not null"`
+	APIKey  string `json:"apiKey" gorm:"not null"`
+	Enable  bool   `json:"enable" gorm:"default:true"`
+}

go.mod

@@ -6,6 +6,7 @@ require (
 	github.com/gin-contrib/gzip v1.2.3
 	github.com/gin-contrib/sessions v1.0.4
 	github.com/gin-gonic/gin v1.11.0
+	github.com/go-ldap/ldap/v3 v3.4.11
 	github.com/goccy/go-json v0.10.5
 	github.com/google/uuid v1.6.0
 	github.com/joho/godotenv v1.5.1
@@ -29,6 +30,7 @@ require (
 )
 
 require (
+	github.com/Azure/go-ntlmssp v0.0.0-20221128193559-754e69321358 // indirect
 	github.com/andybalholm/brotli v1.2.0 // indirect
 	github.com/bytedance/gopkg v0.1.3 // indirect
 	github.com/bytedance/sonic v1.14.1 // indirect
@@ -39,6 +41,7 @@ require (
 	github.com/ebitengine/purego v0.9.0 // indirect
 	github.com/gabriel-vasile/mimetype v1.4.10 // indirect
 	github.com/gin-contrib/sse v1.1.0 // indirect
+	github.com/go-asn1-ber/asn1-ber v1.5.8-0.20250403174932-29230038a667 // indirect
 	github.com/go-ole/go-ole v1.3.0 // indirect
 	github.com/go-playground/locales v0.14.1 // indirect
 	github.com/go-playground/universal-translator v0.18.1 // indirect
@@ -65,6 +68,7 @@ require (
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
 	github.com/modern-go/reflect2 v1.0.2 // indirect
 	github.com/pires/go-proxyproto v0.8.1 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/power-devops/perfstat v0.0.0-20240221224432-82ca36839d55 // indirect
 	github.com/quic-go/qpack v0.5.1 // indirect
 	github.com/quic-go/quic-go v0.54.0 // indirect

go.sum

@@ -1,5 +1,9 @@
+github.com/Azure/go-ntlmssp v0.0.0-20221128193559-754e69321358 h1:mFRzDkZVAjdal+s7s0MwaRv9igoPqLRdzOLzw/8Xvq8=
+github.com/Azure/go-ntlmssp v0.0.0-20221128193559-754e69321358/go.mod h1:chxPXzSsl7ZWRAuOIE23GDNzjWuZquvFlgA8xmpunjU=
 github.com/BurntSushi/toml v1.5.0 h1:W5quZX/G/csjUnuI8SUYlsHs9M38FC7znL0lIO+DvMg=
 github.com/BurntSushi/toml v1.5.0/go.mod h1:ukJfTF/6rtPPRCnwkur4qwRxa8vTRFBF0uk2lLoLwho=
+github.com/alexbrainman/sspi v0.0.0-20231016080023-1a75b4708caa h1:LHTHcTQiSGT7VVbI0o4wBRNQIgn917usHWOd6VAffYI=
+github.com/alexbrainman/sspi v0.0.0-20231016080023-1a75b4708caa/go.mod h1:cEWa1LVoE5KvSD9ONXsZrj0z6KqySlCCNKHlLzbqAt4=
 github.com/andybalholm/brotli v1.2.0 h1:ukwgCxwYrmACq68yiUqwIWnGY0cTPox/M94sVwToPjQ=
 github.com/andybalholm/brotli v1.2.0/go.mod h1:rzTDkvFWvIrjDXZHkuS16NPggd91W3kUSvPlQ1pLaKY=
 github.com/bytedance/gopkg v0.1.3 h1:TPBSwH8RsouGCBcMBktLt1AymVo2TVsBVCY4b6TnZ/M=
@@ -33,6 +37,10 @@ github.com/gin-contrib/sse v1.1.0 h1:n0w2GMuUpWDVp7qSpvze6fAu9iRxJY4Hmj6AmBOU05w
 github.com/gin-contrib/sse v1.1.0/go.mod h1:hxRZ5gVpWMT7Z0B0gSNYqqsSCNIJMjzvm6fqCz9vjwM=
 github.com/gin-gonic/gin v1.11.0 h1:OW/6PLjyusp2PPXtyxKHU0RbX6I/l28FTdDlae5ueWk=
 github.com/gin-gonic/gin v1.11.0/go.mod h1:+iq/FyxlGzII0KHiBGjuNn4UNENUlKbGlNmc+W50Dls=
+github.com/go-asn1-ber/asn1-ber v1.5.8-0.20250403174932-29230038a667 h1:BP4M0CvQ4S3TGls2FvczZtj5Re/2ZzkV9VwqPHH/3Bo=
+github.com/go-asn1-ber/asn1-ber v1.5.8-0.20250403174932-29230038a667/go.mod h1:hEBeB/ic+5LoWskz+yKT7vGhhPYkProFKoKdwZRWMe0=
+github.com/go-ldap/ldap/v3 v3.4.11 h1:4k0Yxweg+a3OyBLjdYn5OKglv18JNvfDykSoI8bW0gU=
+github.com/go-ldap/ldap/v3 v3.4.11/go.mod h1:bY7t0FLK8OAVpp/vV6sSlpz3EQDGcQwc8pF0ujLgKvM=
 github.com/go-logr/logr v1.4.3 h1:CjnDlHq8ikf6E492q6eKboGOC0T8CDaOvkHCIg8idEI=
 github.com/go-logr/logr v1.4.3/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY=
 github.com/go-logr/stdr v1.2.2 h1:hSWxHoqTgW2S2qGc0LTAI563KZ5YKYRhT3MFKZMbjag=
@@ -75,6 +83,20 @@ github.com/gorilla/websocket v1.5.3 h1:saDtZ6Pbx/0u+bgYQ3q96pZgCzfhKXGPqt7kZ72aN
 github.com/gorilla/websocket v1.5.3/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
 github.com/grbit/go-json v0.11.0 h1:bAbyMdYrYl/OjYsSqLH99N2DyQ291mHy726Mx+sYrnc=
 github.com/grbit/go-json v0.11.0/go.mod h1:IYpHsdybQ386+6g3VE6AXQ3uTGa5mquBme5/ZWmtzek=
+github.com/hashicorp/go-uuid v1.0.3 h1:2gKiV6YVmrJ1i2CKKa9obLvRieoRGviZFL26PcT/Co8=
+github.com/hashicorp/go-uuid v1.0.3/go.mod h1:6SBZvOh/SIDV7/2o3Jml5SYk/TvGqwFJ/bN7x4byOro=
+github.com/jcmturner/aescts/v2 v2.0.0 h1:9YKLH6ey7H4eDBXW8khjYslgyqG2xZikXP0EQFKrle8=
+github.com/jcmturner/aescts/v2 v2.0.0/go.mod h1:AiaICIRyfYg35RUkr8yESTqvSy7csK90qZ5xfvvsoNs=
+github.com/jcmturner/dnsutils/v2 v2.0.0 h1:lltnkeZGL0wILNvrNiVCR6Ro5PGU/SeBvVO/8c/iPbo=
+github.com/jcmturner/dnsutils/v2 v2.0.0/go.mod h1:b0TnjGOvI/n42bZa+hmXL+kFJZsFT7G4t3HTlQ184QM=
+github.com/jcmturner/gofork v1.7.6 h1:QH0l3hzAU1tfT3rZCnW5zXl+orbkNMMRGJfdJjHVETg=
+github.com/jcmturner/gofork v1.7.6/go.mod h1:1622LH6i/EZqLloHfE7IeZ0uEJwMSUyQ/nDd82IeqRo=
+github.com/jcmturner/goidentity/v6 v6.0.1 h1:VKnZd2oEIMorCTsFBnJWbExfNN7yZr3EhJAxwOkZg6o=
+github.com/jcmturner/goidentity/v6 v6.0.1/go.mod h1:X1YW3bgtvwAXju7V3LCIMpY0Gbxyjn/mY9zx4tFonSg=
+github.com/jcmturner/gokrb5/v8 v8.4.4 h1:x1Sv4HaTpepFkXbt2IkL29DXRf8sOfZXo8eRKh687T8=
+github.com/jcmturner/gokrb5/v8 v8.4.4/go.mod h1:1btQEpgT6k+unzCwX1KdWMEwPPkkgBtP+F6aCACiMrs=
+github.com/jcmturner/rpc/v2 v2.0.3 h1:7FXXj8Ti1IaVFpSAziCZWNzbNuZmnvw/i6CqLNdWfZY=
+github.com/jcmturner/rpc/v2 v2.0.3/go.mod h1:VUJYCIDm3PVOEHw8sgt091/20OJjskO/YJki3ELg/Hc=
 github.com/jinzhu/inflection v1.0.0 h1:K317FqzuhWc8YvSVlFMCCUb36O/S9MCKRDI7QkRKD/E=
 github.com/jinzhu/inflection v1.0.0/go.mod h1:h+uFLlag+Qp1Va5pdKtLDYj+kHp5pxUVkryuEj+Srlc=
 github.com/jinzhu/now v1.1.5 h1:/o9tlHleP7gOFmsnYNz3RGnqzefHA47wQpKrrdTIwXQ=
@@ -234,8 +256,6 @@ golang.zx2c4.com/wireguard v0.0.0-20250521234502-f333402bd9cb h1:whnFRlWMcXI9d+Z
 golang.zx2c4.com/wireguard v0.0.0-20250521234502-f333402bd9cb/go.mod h1:rpwXGsirqLqN2L0JDJQlwOboGHmptD5ZD6T2VmcqhTw=
 gonum.org/v1/gonum v0.16.0 h1:5+ul4Swaf3ESvrOnidPp4GZbzf0mxVQpDCYUQE7OJfk=
 gonum.org/v1/gonum v0.16.0/go.mod h1:fef3am4MQ93R2HHpKnLk4/Tbh/s0+wqD5nfa6Pnwy4E=
-google.golang.org/genproto/googleapis/rpc v0.0.0-20250908214217-97024824d090 h1:/OQuEa4YWtDt7uQWHd3q3sUMb+QOLQUg1xa8CEsRv5w=
-google.golang.org/genproto/googleapis/rpc v0.0.0-20250908214217-97024824d090/go.mod h1:GmFNa4BdJZ2a8G+wCe9Bg3wwThLrJun751XstdJt5Og=
 google.golang.org/genproto/googleapis/rpc v0.0.0-20250922171735-9219d122eba9 h1:V1jCN2HBa8sySkR5vLcCSqJSTMv093Rw9EJefhQGP7M=
 google.golang.org/genproto/googleapis/rpc v0.0.0-20250922171735-9219d122eba9/go.mod h1:HSkG/KdJWusxU1F6CNrwNDjBMgisKxGnc5dAZfT0mjQ=
 google.golang.org/grpc v1.75.1 h1:/ODCNEuf9VghjgO3rqLcfg8fiOP0nSluljWFlDxELLI=

install.sh

@@ -140,6 +140,13 @@ config_after_install() {
     fi
 
     /usr/local/x-ui/x-ui migrate
+
+    local existing_apiKey=$(/usr/local/x-ui/x-ui setting -show true | grep -oP 'ApiKey: \K.*')
+    if [[ -z "$existing_apiKey" ]]; then
+        local config_apiKey=$(gen_random_string 32)
+        /usr/local/x-ui/x-ui setting -apiKey "${config_apiKey}"
+        echo -e "${green}Generated random API Key: ${config_apiKey}${plain}"
+    fi
 }
 
 install_x-ui() {

main.go

@@ -240,7 +240,8 @@ func updateTgbotSetting(tgBotToken string, tgBotChatid string, tgBotRuntime stri
 }
 
 // updateSetting updates various panel settings including port, credentials, base path, listen IP, and two-factor authentication.
-func updateSetting(port int, username string, password string, webBasePath string, listenIP string, resetTwoFactor bool) {
+func updateSetting(port int, username string, password string, webBasePath string, listenIP string, resetTwoFactor bool, apiKey string) {
+
 	err := database.InitDB(config.GetDBPath())
 	if err != nil {
 		fmt.Println("Database initialization failed:", err)
@@ -250,6 +251,15 @@ func updateSetting(port int, username string, password string, webBasePath strin
 	settingService := service.SettingService{}
 	userService := service.UserService{}
 
+	if apiKey != "" {
+		err := settingService.SetAPIKey(apiKey)
+		if err != nil {
+			fmt.Println("Failed to set API Key:", err)
+		} else {
+			fmt.Printf("API Key set successfully: %v\n", apiKey)
+		}
+	}
+
 	if port > 0 {
 		err := settingService.SetPort(port)
 		if err != nil {
@@ -402,9 +412,11 @@ func main() {
 	var show bool
 	var getCert bool
 	var resetTwoFactor bool
+	var apiKey string
 	settingCmd.BoolVar(&reset, "reset", false, "Reset all settings")
 	settingCmd.BoolVar(&show, "show", false, "Display current settings")
 	settingCmd.IntVar(&port, "port", 0, "Set panel port number")
+	settingCmd.StringVar(&apiKey, "apiKey", "", "Set API Key")
 	settingCmd.StringVar(&username, "username", "", "Set login username")
 	settingCmd.StringVar(&password, "password", "", "Set login password")
 	settingCmd.StringVar(&webBasePath, "webBasePath", "", "Set base path for Panel")
@@ -454,7 +466,7 @@ func main() {
 		if reset {
 			resetSetting()
 		} else {
-			updateSetting(port, username, password, webBasePath, listenIP, resetTwoFactor)
+			updateSetting(port, username, password, webBasePath, listenIP, resetTwoFactor, apiKey)
 		}
 		if show {
 			showSetting(show)

sub/subService.go

@@ -162,26 +162,43 @@ func (s *SubService) getFallbackMaster(dest string, streamSettings string) (stri
 }
 
 func (s *SubService) getLink(inbound *model.Inbound, email string) string {
-	switch inbound.Protocol {
+	serverService := service.MultiServerService{}
-	case "vmess":
+	servers, err := serverService.GetServers()
-		return s.genVmessLink(inbound, email)
+	if err != nil {
-	case "vless":
+		logger.Warning("Failed to get servers for subscription:", err)
-		return s.genVlessLink(inbound, email)
+		return ""
-	case "trojan":
-		return s.genTrojanLink(inbound, email)
-	case "shadowsocks":
-		return s.genShadowsocksLink(inbound, email)
 	}
-	return ""
+
+	var links []string
+	for _, server := range servers {
+		if !server.Enable {
+			continue
+		}
+		var link string
+		switch inbound.Protocol {
+		case "vmess":
+			link = s.genVmessLink(inbound, email, server)
+		case "vless":
+			link = s.genVlessLink(inbound, email, server)
+		case "trojan":
+			link = s.genTrojanLink(inbound, email, server)
+		case "shadowsocks":
+			link = s.genShadowsocksLink(inbound, email, server)
+		}
+		if link != "" {
+			links = append(links, link)
+		}
+	}
+	return strings.Join(links, "\n")
 }
 
-func (s *SubService) genVmessLink(inbound *model.Inbound, email string) string {
+func (s *SubService) genVmessLink(inbound *model.Inbound, email string, server *model.Server) string {
 	if inbound.Protocol != model.VMESS {
 		return ""
 	}
 	obj := map[string]any{
 		"v":    "2",
-		"add":  s.address,
+		"add":  server.Address,
 		"port": inbound.Port,
 		"type": "none",
 	}
@@ -294,7 +311,7 @@ func (s *SubService) genVmessLink(inbound *model.Inbound, email string) string {
 					newObj[key] = value
 				}
 			}
-			newObj["ps"] = s.genRemark(inbound, email, ep["remark"].(string))
+			newObj["ps"] = s.genRemark(inbound, email, ep["remark"].(string), server.Name)
 			newObj["add"] = ep["dest"].(string)
 			newObj["port"] = int(ep["port"].(float64))
 
@@ -310,14 +327,14 @@ func (s *SubService) genVmessLink(inbound *model.Inbound, email string) string {
 		return links
 	}
 
-	obj["ps"] = s.genRemark(inbound, email, "")
+	obj["ps"] = s.genRemark(inbound, email, "", server.Name)
 
 	jsonStr, _ := json.MarshalIndent(obj, "", "  ")
 	return "vmess://" + base64.StdEncoding.EncodeToString(jsonStr)
 }
 
-func (s *SubService) genVlessLink(inbound *model.Inbound, email string) string {
+func (s *SubService) genVlessLink(inbound *model.Inbound, email string, server *model.Server) string {
-	address := s.address
+	address := server.Address
 	if inbound.Protocol != model.VLESS {
 		return ""
 	}
@@ -497,7 +514,7 @@ func (s *SubService) genVlessLink(inbound *model.Inbound, email string) string {
 			// Set the new query values on the URL
 			url.RawQuery = q.Encode()
 
-			url.Fragment = s.genRemark(inbound, email, ep["remark"].(string))
+			url.Fragment = s.genRemark(inbound, email, ep["remark"].(string), server.Name)
 
 			if index > 0 {
 				links += "\n"
@@ -518,12 +535,12 @@ func (s *SubService) genVlessLink(inbound *model.Inbound, email string) string {
 	// Set the new query values on the URL
 	url.RawQuery = q.Encode()
 
-	url.Fragment = s.genRemark(inbound, email, "")
+	url.Fragment = s.genRemark(inbound, email, "", server.Name)
 	return url.String()
 }
 
-func (s *SubService) genTrojanLink(inbound *model.Inbound, email string) string {
+func (s *SubService) genTrojanLink(inbound *model.Inbound, email string, server *model.Server) string {
-	address := s.address
+	address := server.Address
 	if inbound.Protocol != model.Trojan {
 		return ""
 	}
@@ -692,7 +709,7 @@ func (s *SubService) genTrojanLink(inbound *model.Inbound, email string) string
 			// Set the new query values on the URL
 			url.RawQuery = q.Encode()
 
-			url.Fragment = s.genRemark(inbound, email, ep["remark"].(string))
+			url.Fragment = s.genRemark(inbound, email, ep["remark"].(string), server.Name)
 
 			if index > 0 {
 				links += "\n"
@@ -714,12 +731,12 @@ func (s *SubService) genTrojanLink(inbound *model.Inbound, email string) string
 	// Set the new query values on the URL
 	url.RawQuery = q.Encode()
 
-	url.Fragment = s.genRemark(inbound, email, "")
+	url.Fragment = s.genRemark(inbound, email, "", server.Name)
 	return url.String()
 }
 
-func (s *SubService) genShadowsocksLink(inbound *model.Inbound, email string) string {
+func (s *SubService) genShadowsocksLink(inbound *model.Inbound, email string, server *model.Server) string {
-	address := s.address
+	address := server.Address
 	if inbound.Protocol != model.Shadowsocks {
 		return ""
 	}
@@ -859,7 +876,7 @@ func (s *SubService) genShadowsocksLink(inbound *model.Inbound, email string) st
 			// Set the new query values on the URL
 			url.RawQuery = q.Encode()
 
-			url.Fragment = s.genRemark(inbound, email, ep["remark"].(string))
+			url.Fragment = s.genRemark(inbound, email, ep["remark"].(string), server.Name)
 
 			if index > 0 {
 				links += "\n"
@@ -880,17 +897,18 @@ func (s *SubService) genShadowsocksLink(inbound *model.Inbound, email string) st
 	// Set the new query values on the URL
 	url.RawQuery = q.Encode()
 
-	url.Fragment = s.genRemark(inbound, email, "")
+	url.Fragment = s.genRemark(inbound, email, "", server.Name)
 	return url.String()
 }
 
-func (s *SubService) genRemark(inbound *model.Inbound, email string, extra string) string {
+func (s *SubService) genRemark(inbound *model.Inbound, email string, extra string, serverName string) string {
 	separationChar := string(s.remarkModel[0])
 	orderChars := s.remarkModel[1:]
 	orders := map[byte]string{
 		'i': "",
 		'e': "",
 		'o': "",
+		's': "",
 	}
 	if len(email) > 0 {
 		orders['e'] = email
@@ -901,6 +919,9 @@ func (s *SubService) genRemark(inbound *model.Inbound, email string, extra strin
 	if len(extra) > 0 {
 		orders['o'] = extra
 	}
+	if len(serverName) > 0 {
+		orders['s'] = serverName
+	}
 
 	var remark []string
 	for i := 0; i < len(orderChars); i++ {

util/ldap/ldap.go

@@ -0,0 +1,144 @@
+package ldaputil
+
+import (
+    "crypto/tls"
+    "fmt"
+
+    "github.com/go-ldap/ldap/v3"
+)
+
+type Config struct {
+    Host        string
+    Port        int
+    UseTLS      bool
+    BindDN      string
+    Password    string
+    BaseDN      string
+    UserFilter  string
+    UserAttr    string
+    FlagField   string
+    TruthyVals  []string
+    Invert      bool
+}
+
+// FetchVlessFlags returns map[email]enabled
+func FetchVlessFlags(cfg Config) (map[string]bool, error) {
+    addr := fmt.Sprintf("%s:%d", cfg.Host, cfg.Port)
+    var conn *ldap.Conn
+    var err error
+    if cfg.UseTLS {
+        conn, err = ldap.DialTLS("tcp", addr, &tls.Config{InsecureSkipVerify: false})
+    } else {
+        conn, err = ldap.Dial("tcp", addr)
+    }
+    if err != nil {
+        return nil, err
+    }
+    defer conn.Close()
+
+    if cfg.BindDN != "" {
+        if err := conn.Bind(cfg.BindDN, cfg.Password); err != nil {
+            return nil, err
+        }
+    }
+
+    if cfg.UserFilter == "" {
+        cfg.UserFilter = "(objectClass=person)"
+    }
+    if cfg.UserAttr == "" {
+        cfg.UserAttr = "mail"
+    }
+    // if field not set we fallback to legacy vless_enabled
+    if cfg.FlagField == "" {
+        cfg.FlagField = "vless_enabled"
+    }
+
+    req := ldap.NewSearchRequest(
+        cfg.BaseDN,
+        ldap.ScopeWholeSubtree, ldap.NeverDerefAliases, 0, 0, false,
+        cfg.UserFilter,
+        []string{cfg.UserAttr, cfg.FlagField},
+        nil,
+    )
+
+    res, err := conn.Search(req)
+    if err != nil {
+        return nil, err
+    }
+
+    result := make(map[string]bool, len(res.Entries))
+    for _, e := range res.Entries {
+        user := e.GetAttributeValue(cfg.UserAttr)
+        if user == "" {
+            continue
+        }
+        val := e.GetAttributeValue(cfg.FlagField)
+        enabled := false
+        for _, t := range cfg.TruthyVals {
+            if val == t {
+                enabled = true
+                break
+            }
+        }
+        if cfg.Invert {
+            enabled = !enabled
+        }
+        result[user] = enabled
+    }
+    return result, nil
+}
+
+// AuthenticateUser searches user by cfg.UserAttr and attempts to bind with provided password.
+func AuthenticateUser(cfg Config, username, password string) (bool, error) {
+    addr := fmt.Sprintf("%s:%d", cfg.Host, cfg.Port)
+    var conn *ldap.Conn
+    var err error
+    if cfg.UseTLS {
+        conn, err = ldap.DialTLS("tcp", addr, &tls.Config{InsecureSkipVerify: false})
+    } else {
+        conn, err = ldap.Dial("tcp", addr)
+    }
+    if err != nil {
+        return false, err
+    }
+    defer conn.Close()
+
+    // Optional initial bind for search
+    if cfg.BindDN != "" {
+        if err := conn.Bind(cfg.BindDN, cfg.Password); err != nil {
+            return false, err
+        }
+    }
+
+    if cfg.UserFilter == "" {
+        cfg.UserFilter = "(objectClass=person)"
+    }
+    if cfg.UserAttr == "" {
+        cfg.UserAttr = "uid"
+    }
+
+    // Build filter to find specific user
+    filter := fmt.Sprintf("(&%s(%s=%s))", cfg.UserFilter, cfg.UserAttr, ldap.EscapeFilter(username))
+    req := ldap.NewSearchRequest(
+        cfg.BaseDN,
+        ldap.ScopeWholeSubtree, ldap.NeverDerefAliases, 1, 0, false,
+        filter,
+        []string{"dn"},
+        nil,
+    )
+    res, err := conn.Search(req)
+    if err != nil {
+        return false, err
+    }
+    if len(res.Entries) == 0 {
+        return false, nil
+    }
+    userDN := res.Entries[0].DN
+    // Try to bind as the user
+    if err := conn.Bind(userDN, password); err != nil {
+        return false, nil
+    }
+    return true, nil
+}
+
+

web/assets/js/model/setting.js

@@ -50,6 +50,28 @@ class AllSetting {
 
         this.timeLocation = "Local";
 
+        // LDAP settings
+        this.ldapEnable = false;
+        this.ldapHost = "";
+        this.ldapPort = 389;
+        this.ldapUseTLS = false;
+        this.ldapBindDN = "";
+        this.ldapPassword = "";
+        this.ldapBaseDN = "";
+        this.ldapUserFilter = "(objectClass=person)";
+        this.ldapUserAttr = "mail";
+        this.ldapVlessField = "vless_enabled";
+        this.ldapSyncCron = "@every 1m";
+        this.ldapFlagField = "";
+        this.ldapTruthyValues = "true,1,yes,on";
+        this.ldapInvertFlag = false;
+        this.ldapInboundTags = "";
+        this.ldapAutoCreate = false;
+        this.ldapAutoDelete = false;
+        this.ldapDefaultTotalGB = 0;
+        this.ldapDefaultExpiryDays = 0;
+        this.ldapDefaultLimitIP = 0;
+
         if (data == null) {
             return
         }

web/assets/js/util/index.js

@@ -316,23 +316,13 @@ class ObjectUtil {
     }
 
     static equals(a, b) {
-        for (const key in a) {
+        // shallow, symmetric comparison so newly added fields also affect equality
-            if (!a.hasOwnProperty(key)) {
+        const aKeys = Object.keys(a);
-                continue;
+        const bKeys = Object.keys(b);
-            }
+        if (aKeys.length !== bKeys.length) return false;
-            if (!b.hasOwnProperty(key)) {
+        for (const key of aKeys) {
-                return false;
+            if (!Object.prototype.hasOwnProperty.call(b, key)) return false;
-            } else if (a[key] !== b[key]) {
+            if (a[key] !== b[key]) return false;
-                return false;
-            }
-        }
-        for (const key in b) {
-            if (!b.hasOwnProperty(key)) {
-                continue;
-            }
-            if (!a.hasOwnProperty(key)) {
-                return false;
-            }
         }
         return true;
     }

web/controller/inbound.go

@@ -5,6 +5,7 @@ import (
 	"fmt"
 	"strconv"
 
+
 	"github.com/mhsanaei/3x-ui/v2/database/model"
 	"github.com/mhsanaei/3x-ui/v2/web/service"
 	"github.com/mhsanaei/3x-ui/v2/web/session"

web/controller/multi_server_controller.go

@@ -0,0 +1,89 @@
+package controller
+
+import (
+	"strconv"
+
+	"x-ui/database/model"
+	"x-ui/web/service"
+
+	"github.com/gin-gonic/gin"
+)
+
+type MultiServerController struct {
+	multiServerService service.MultiServerService
+}
+
+func NewMultiServerController(g *gin.RouterGroup) *MultiServerController {
+	c := &MultiServerController{}
+	c.initRouter(g)
+	return c
+}
+
+func (c *MultiServerController) initRouter(g *gin.RouterGroup) {
+	g = g.Group("/server")
+
+	g.GET("/list", c.getServers)
+	g.POST("/add", c.addServer)
+	g.POST("/del/:id", c.delServer)
+	g.POST("/update/:id", c.updateServer)
+}
+
+func (c *MultiServerController) getServers(ctx *gin.Context) {
+	servers, err := c.multiServerService.GetServers()
+	if err != nil {
+		jsonMsg(ctx, "Failed to get servers", err)
+		return
+	}
+	jsonObj(ctx, servers, nil)
+}
+
+func (c *MultiServerController) addServer(ctx *gin.Context) {
+	server := &model.Server{}
+	err := ctx.ShouldBind(server)
+	if err != nil {
+		jsonMsg(ctx, "Invalid data", err)
+		return
+	}
+	err = c.multiServerService.AddServer(server)
+	if err != nil {
+		jsonMsg(ctx, "Failed to add server", err)
+		return
+	}
+	jsonMsg(ctx, "Server added successfully", nil)
+}
+
+func (c *MultiServerController) delServer(ctx *gin.Context) {
+	id, err := strconv.Atoi(ctx.Param("id"))
+	if err != nil {
+		jsonMsg(ctx, "Invalid ID", err)
+		return
+	}
+	err = c.multiServerService.DeleteServer(id)
+	if err != nil {
+		jsonMsg(ctx, "Failed to delete server", err)
+		return
+	}
+	jsonMsg(ctx, "Server deleted successfully", nil)
+}
+
+func (c *MultiServerController) updateServer(ctx *gin.Context) {
+	id, err := strconv.Atoi(ctx.Param("id"))
+	if err != nil {
+		jsonMsg(ctx, "Invalid ID", err)
+		return
+	}
+	server := &model.Server{
+		Id: id,
+	}
+	err = ctx.ShouldBind(server)
+	if err != nil {
+		jsonMsg(ctx, "Invalid data", err)
+		return
+	}
+	err = c.multiServerService.UpdateServer(server)
+	if err != nil {
+		jsonMsg(ctx, "Failed to update server", err)
+		return
+	}
+	jsonMsg(ctx, "Server updated successfully", nil)
+}

web/controller/xui.go

@@ -26,6 +26,7 @@ func (a *XUIController) initRouter(g *gin.RouterGroup) {
 
 	g.GET("/", a.index)
 	g.GET("/inbounds", a.inbounds)
+	g.GET("/servers", a.servers)
 	g.GET("/settings", a.settings)
 	g.GET("/xray", a.xraySettings)
 
@@ -52,3 +53,7 @@ func (a *XUIController) settings(c *gin.Context) {
 func (a *XUIController) xraySettings(c *gin.Context) {
 	html(c, "xray.html", "pages.xray.title", nil)
 }
+
+func (a *XUIController) servers(c *gin.Context) {
+	html(c, "servers.html", "Servers", nil)
+}

web/entity/entity.go

@@ -74,7 +74,31 @@ type AllSetting struct {
 	SubJsonFragment             string `json:"subJsonFragment" form:"subJsonFragment"`                         // JSON subscription fragment configuration
 	SubJsonNoises               string `json:"subJsonNoises" form:"subJsonNoises"`                             // JSON subscription noise configuration
 	SubJsonMux                  string `json:"subJsonMux" form:"subJsonMux"`                                   // JSON subscription mux configuration
-	SubJsonRules                string `json:"subJsonRules" form:"subJsonRules"`                               // JSON subscription routing rules
+	SubJsonRules                string `json:"subJsonRules" form:"subJsonRules"`    
+	
+	// LDAP settings
+	LdapEnable                  bool   `json:"ldapEnable" form:"ldapEnable"`
+	LdapHost                    string `json:"ldapHost" form:"ldapHost"`
+	LdapPort                    int    `json:"ldapPort" form:"ldapPort"`
+	LdapUseTLS                  bool   `json:"ldapUseTLS" form:"ldapUseTLS"`
+	LdapBindDN                  string `json:"ldapBindDN" form:"ldapBindDN"`
+	LdapPassword                string `json:"ldapPassword" form:"ldapPassword"`
+	LdapBaseDN                  string `json:"ldapBaseDN" form:"ldapBaseDN"`
+	LdapUserFilter              string `json:"ldapUserFilter" form:"ldapUserFilter"`
+	LdapUserAttr                string `json:"ldapUserAttr" form:"ldapUserAttr"` // e.g., mail or uid
+	LdapVlessField              string `json:"ldapVlessField" form:"ldapVlessField"`
+	LdapSyncCron                string `json:"ldapSyncCron" form:"ldapSyncCron"`
+	// Generic flag configuration
+	LdapFlagField               string `json:"ldapFlagField" form:"ldapFlagField"`
+	LdapTruthyValues            string `json:"ldapTruthyValues" form:"ldapTruthyValues"`
+	LdapInvertFlag              bool   `json:"ldapInvertFlag" form:"ldapInvertFlag"`
+	LdapInboundTags             string `json:"ldapInboundTags" form:"ldapInboundTags"`
+	LdapAutoCreate              bool   `json:"ldapAutoCreate" form:"ldapAutoCreate"`
+	LdapAutoDelete              bool   `json:"ldapAutoDelete" form:"ldapAutoDelete"`
+	LdapDefaultTotalGB          int    `json:"ldapDefaultTotalGB" form:"ldapDefaultTotalGB"`
+	LdapDefaultExpiryDays       int    `json:"ldapDefaultExpiryDays" form:"ldapDefaultExpiryDays"`
+	LdapDefaultLimitIP          int    `json:"ldapDefaultLimitIP" form:"ldapDefaultLimitIP"`
+	// JSON subscription routing rules
 }
 
 // CheckValid validates all settings in the AllSetting struct, checking IP addresses, ports, SSL certificates, and other configuration values.

web/html/component/aSidebar.html

@@ -54,6 +54,11 @@
                         icon: 'user',
                         title: '{{ i18n "menu.inbounds"}}'
                     },
+                    {
+                        key: '{{ .base_path }}panel/servers',
+                        icon: 'cloud-server',
+                        title: 'Servers'
+                    },
                     {
                         key: '{{ .base_path }}panel/settings',
                         icon: 'setting',

web/html/servers.html

@@ -0,0 +1,165 @@
+{{template "header" .}}
+
+<div id="app" class="row" v-cloak>
+    <div class="col-md-12">
+        <div class="card">
+            <div class="card-header">
+                <h3 class="card-title">Server Management</h3>
+                <div class="card-tools">
+                    <button class="btn btn-primary" @click="showAddModal">Add Server</button>
+                </div>
+            </div>
+            <div class="card-body">
+                <table class="table table-bordered">
+                    <thead>
+                    <tr>
+                        <th>#</th>
+                        <th>Name</th>
+                        <th>Address</th>
+                        <th>Port</th>
+                        <th>Enabled</th>
+                        <th>Actions</th>
+                    </tr>
+                    </thead>
+                    <tbody>
+                    <tr v-for="(server, index) in servers">
+                        <td>{{index + 1}}</td>
+                        <td>{{server.name}}</td>
+                        <td>{{server.address}}</td>
+                        <td>{{server.port}}</td>
+                        <td>
+                            <span v-if="server.enable" class="badge bg-success">Yes</span>
+                            <span v-else class="badge bg-danger">No</span>
+                        </td>
+                        <td>
+                            <button class="btn btn-info btn-sm" @click="showEditModal(server)">Edit</button>
+                            <button class="btn btn-danger btn-sm" @click="deleteServer(server.id)">Delete</button>
+                        </td>
+                    </tr>
+                    </tbody>
+                </table>
+            </div>
+        </div>
+    </div>
+
+    <!-- Add/Edit Modal -->
+    <div class="modal fade" id="serverModal" tabindex="-1" role="dialog">
+        <div class="modal-dialog" role="document">
+            <div class="modal-content">
+                <div class="modal-header">
+                    <h5 class="modal-title">{{modal.title}}</h5>
+                    <button type="button" class="close" data-dismiss="modal" aria-label="Close">
+                        <span aria-hidden="true">&times;</span>
+                    </button>
+                </div>
+                <div class="modal-body">
+                    <form>
+                        <div class="form-group">
+                            <label>Name</label>
+                            <input type="text" class="form-control" v-model="modal.server.name">
+                        </div>
+                        <div class="form-group">
+                            <label>Address (IP or Domain)</label>
+                            <input type="text" class="form-control" v-model="modal.server.address">
+                        </div>
+                        <div class="form-group">
+                            <label>Port</label>
+                            <input type="number" class="form-control" v-model.number="modal.server.port">
+                        </div>
+                        <div class="form-group">
+                            <label>API Key</label>
+                            <input type="text" class="form-control" v-model="modal.server.apiKey">
+                        </div>
+                        <div class="form-check">
+                            <input type="checkbox" class="form-check-input" v-model="modal.server.enable">
+                            <label class="form-check-label">Enabled</label>
+                        </div>
+                    </form>
+                </div>
+                <div class="modal-footer">
+                    <button type="button" class="btn btn-secondary" data-dismiss="modal">Close</button>
+                    <button type="button" class="btn btn-primary" @click="saveServer">Save</button>
+                </div>
+            </div>
+        </div>
+    </div>
+</div>
+
+<script>
+    const app = new Vue({
+        el: '#app',
+        data: {
+            servers: [],
+            modal: {
+                title: '',
+                server: {
+                    name: '',
+                    address: '',
+                    port: 0,
+                    apiKey: '',
+                    enable: true
+                }
+            }
+        },
+        methods: {
+            loadServers() {
+                axios.get('{{.base_path}}server/list')
+                    .then(response => {
+                        this.servers = response.data.obj;
+                    })
+                    .catch(error => {
+                        alert(error.response.data.msg);
+                    });
+            },
+            showAddModal() {
+                this.modal.title = 'Add Server';
+                this.modal.server = {
+                    name: '',
+                    address: '',
+                    port: 0,
+                    apiKey: '',
+                    enable: true
+                };
+                $('#serverModal').modal('show');
+            },
+            showEditModal(server) {
+                this.modal.title = 'Edit Server';
+                this.modal.server = Object.assign({}, server);
+                $('#serverModal').modal('show');
+            },
+            saveServer() {
+                let url = '{{.base_path}}server/add';
+                if (this.modal.server.id) {
+                    url = `{{.base_path}}server/update/${this.modal.server.id}`;
+                }
+                axios.post(url, this.modal.server)
+                    .then(response => {
+                        alert(response.data.msg);
+                        $('#serverModal').modal('hide');
+                        this.loadServers();
+                    })
+                    .catch(error => {
+                        alert(error.response.data.msg);
+                    });
+            },
+            deleteServer(id) {
+                if (!confirm('Are you sure you want to delete this server?')) {
+                    return;
+                }
+                axios.post(`{{.base_path}}server/del/${id}`)
+                    .then(response => {
+                        alert(response.data.msg);
+                        this.loadServers();
+                    })
+                    .catch(error => {
+                        alert(error.response.data.msg);
+                    });
+            }
+        },
+        mounted() {
+            this.loadServers();
+        }
+    });
+</script>
+
+{{template "footer" .}}

web/html/settings.html

@@ -119,6 +119,7 @@
       saveBtnDisable: true,
       user: {},
       lang: LanguageManager.getLanguage(),
+      inboundOptions: [],
       remarkModels: { i: 'Inbound', e: 'Email', o: 'Other' },
       remarkSeparators: [' ', '-', '_', '@', ':', '~', '|', ',', '.', '/'],
       datepickerList: [{ name: 'Gregorian (Standard)', value: 'gregorian' }, { name: 'Jalalian (شمسی)', value: 'jalalian' }],
@@ -242,6 +243,17 @@
           this.saveBtnDisable = true;
         }
       },
+      async loadInboundTags() {
+        const msg = await HttpUtil.get("/panel/api/inbounds/list");
+        if (msg && msg.success && Array.isArray(msg.obj)) {
+          this.inboundOptions = msg.obj.map(ib => ({
+            label: `${ib.tag} (${ib.protocol}@${ib.port})`,
+            value: ib.tag,
+          }));
+        } else {
+          this.inboundOptions = [];
+        }
+      },
       async updateAllSetting() {
         this.loading(true);
         const msg = await HttpUtil.post("/panel/setting/update", this.allSetting);
@@ -368,6 +380,15 @@
       },
     },
     computed: {
+      ldapInboundTagList: {
+        get: function() {
+          const csv = this.allSetting.ldapInboundTags || "";
+          return csv.length ? csv.split(',').map(s => s.trim()).filter(Boolean) : [];
+        },
+        set: function(list) {
+          this.allSetting.ldapInboundTags = Array.isArray(list) ? list.join(',') : '';
+        }
+      },
       fragment: {
         get: function () { return this.allSetting?.subJsonFragment != ""; },
         set: function (v) {
@@ -534,7 +555,7 @@
     },
     async mounted() {
       await this.getAllSetting();
-
+      await this.loadInboundTags();
       while (true) {
         await PromiseUtil.sleep(1000);
         this.saveBtnDisable = this.oldAllSetting.equals(this.allSetting);

web/html/settings/panel/general.html

@@ -146,5 +146,135 @@
             </template>
         </a-setting-list-item>
     </a-collapse-panel>
+    <a-collapse-panel key="6" header='LDAP'>
+        <a-setting-list-item paddings="small">
+            <template #title>Enable LDAP sync</template>
+            <template #control>
+                <a-switch v-model="allSetting.ldapEnable"></a-switch>
+            </template>
+        </a-setting-list-item>
+        <a-setting-list-item paddings="small">
+            <template #title>LDAP Host</template>
+            <template #control>
+                <a-input type="text" v-model="allSetting.ldapHost"></a-input>
+            </template>
+        </a-setting-list-item>
+        <a-setting-list-item paddings="small">
+            <template #title>LDAP Port</template>
+            <template #control>
+                <a-input-number :min="1" :max="65535" v-model="allSetting.ldapPort" :style="{ width: '100%' }"></a-input-number>
+            </template>
+        </a-setting-list-item>
+        <a-setting-list-item paddings="small">
+            <template #title>Use TLS (LDAPS)</template>
+            <template #control>
+                <a-switch v-model="allSetting.ldapUseTLS"></a-switch>
+            </template>
+        </a-setting-list-item>
+        <a-setting-list-item paddings="small">
+            <template #title>Bind DN</template>
+            <template #control>
+                <a-input type="text" v-model="allSetting.ldapBindDN"></a-input>
+            </template>
+        </a-setting-list-item>
+        <a-setting-list-item paddings="small">
+            <template #title>Password</template>
+            <template #control>
+                <a-input type="password" v-model="allSetting.ldapPassword"></a-input>
+            </template>
+        </a-setting-list-item>
+        <a-setting-list-item paddings="small">
+            <template #title>Base DN</template>
+            <template #control>
+                <a-input type="text" v-model="allSetting.ldapBaseDN"></a-input>
+            </template>
+        </a-setting-list-item>
+        <a-setting-list-item paddings="small">
+            <template #title>User filter</template>
+            <template #control>
+                <a-input type="text" v-model="allSetting.ldapUserFilter"></a-input>
+            </template>
+        </a-setting-list-item>
+        <a-setting-list-item paddings="small">
+            <template #title>User attribute (username/email)</template>
+            <template #control>
+                <a-input type="text" v-model="allSetting.ldapUserAttr"></a-input>
+            </template>
+        </a-setting-list-item>
+        <a-setting-list-item paddings="small">
+            <template #title>VLESS flag attribute</template>
+            <template #control>
+                <a-input type="text" v-model="allSetting.ldapVlessField"></a-input>
+            </template>
+        </a-setting-list-item>
+        <a-setting-list-item paddings="small">
+            <template #title>Generic flag attribute (optional)</template>
+            <template #description>If set, overrides VLESS flag; e.g. shadowInactive</template>
+            <template #control>
+                <a-input type="text" v-model="allSetting.ldapFlagField"></a-input>
+            </template>
+        </a-setting-list-item>
+        <a-setting-list-item paddings="small">
+            <template #title>Truthy values</template>
+            <template #description>Comma-separated; default: true,1,yes,on</template>
+            <template #control>
+                <a-input type="text" v-model="allSetting.ldapTruthyValues"></a-input>
+            </template>
+        </a-setting-list-item>
+        <a-setting-list-item paddings="small">
+            <template #title>Invert flag</template>
+            <template #description>Enable when attribute means disabled (e.g., shadowInactive)</template>
+            <template #control>
+                <a-switch v-model="allSetting.ldapInvertFlag"></a-switch>
+            </template>
+        </a-setting-list-item>
+        <a-setting-list-item paddings="small">
+            <template #title>Sync schedule</template>
+            <template #description>cron-like string, e.g. @every 1m</template>
+            <template #control>
+                <a-input type="text" v-model="allSetting.ldapSyncCron"></a-input>
+            </template>
+        </a-setting-list-item>
+        <a-setting-list-item paddings="small">
+            <template #title>Inbound tags</template>
+            <template #description>Select inbounds to manage (auto create/delete)</template>
+            <template #control>
+                <a-select mode="multiple" :dropdown-class-name="themeSwitcher.currentTheme" :style="{ width: '100%' }" v-model="ldapInboundTagList">
+                    <a-select-option v-for="opt in inboundOptions" :key="opt.value" :value="opt.value">[[ opt.label ]]</a-select-option>
+                </a-select>
+                <div v-if="inboundOptions.length==0" style="margin-top:6px;color:#999">No inbounds found. Please create one in Inbounds.</div>
+            </template>
+        </a-setting-list-item>
+        <a-setting-list-item paddings="small">
+            <template #title>Auto create clients</template>
+            <template #control>
+                <a-switch v-model="allSetting.ldapAutoCreate"></a-switch>
+            </template>
+        </a-setting-list-item>
+        <a-setting-list-item paddings="small">
+            <template #title>Auto delete clients</template>
+            <template #control>
+                <a-switch v-model="allSetting.ldapAutoDelete"></a-switch>
+            </template>
+        </a-setting-list-item>
+        <a-setting-list-item paddings="small">
+            <template #title>Default total (GB)</template>
+            <template #control>
+                <a-input-number :min="0" v-model="allSetting.ldapDefaultTotalGB" :style="{ width: '100%' }"></a-input-number>
+            </template>
+        </a-setting-list-item>
+        <a-setting-list-item paddings="small">
+            <template #title>Default expiry (days)</template>
+            <template #control>
+                <a-input-number :min="0" v-model="allSetting.ldapDefaultExpiryDays" :style="{ width: '100%' }"></a-input-number>
+            </template>
+        </a-setting-list-item>
+        <a-setting-list-item paddings="small">
+            <template #title>Default Limit IP</template>
+            <template #control>
+                <a-input-number :min="0" v-model="allSetting.ldapDefaultLimitIP" :style="{ width: '100%' }"></a-input-number>
+            </template>
+        </a-setting-list-item>
+    </a-collapse-panel>
 </a-collapse>
 {{end}}

web/job/ldap_sync_job.go

@@ -0,0 +1,393 @@
+package job
+
+import (
+    "time"
+
+    "github.com/mhsanaei/3x-ui/v2/database/model"
+    "github.com/mhsanaei/3x-ui/v2/logger"
+    ldaputil "github.com/mhsanaei/3x-ui/v2/util/ldap"
+    "github.com/mhsanaei/3x-ui/v2/web/service"
+    "strings"
+
+    "github.com/google/uuid"
+    "strconv"
+)
+
+var DefaultTruthyValues = []string{"true", "1", "yes", "on"}
+
+type LdapSyncJob struct {
+    settingService service.SettingService
+    inboundService service.InboundService
+    xrayService    service.XrayService
+}
+
+// --- Helper functions for mustGet ---
+func mustGetString(fn func() (string, error)) string {
+    v, err := fn()
+    if err != nil {
+        panic(err)
+    }
+    return v
+}
+
+func mustGetInt(fn func() (int, error)) int {
+    v, err := fn()
+    if err != nil {
+        panic(err)
+    }
+    return v
+}
+
+func mustGetBool(fn func() (bool, error)) bool {
+    v, err := fn()
+    if err != nil {
+        panic(err)
+    }
+    return v
+}
+
+func mustGetStringOr(fn func() (string, error), fallback string) string {
+    v, err := fn()
+    if err != nil || v == "" {
+        return fallback
+    }
+    return v
+}
+
+
+func NewLdapSyncJob() *LdapSyncJob {
+    return new(LdapSyncJob)
+}
+
+func (j *LdapSyncJob) Run() {
+    logger.Info("LDAP sync job started")
+
+    enabled, err := j.settingService.GetLdapEnable()
+    if err != nil || !enabled {
+        logger.Warning("LDAP disabled or failed to fetch flag")
+        return
+    }
+
+    // --- LDAP fetch ---
+    cfg := ldaputil.Config{
+        Host:      mustGetString(j.settingService.GetLdapHost),
+        Port:      mustGetInt(j.settingService.GetLdapPort),
+        UseTLS:    mustGetBool(j.settingService.GetLdapUseTLS),
+        BindDN:    mustGetString(j.settingService.GetLdapBindDN),
+        Password:  mustGetString(j.settingService.GetLdapPassword),
+        BaseDN:    mustGetString(j.settingService.GetLdapBaseDN),
+        UserFilter: mustGetString(j.settingService.GetLdapUserFilter),
+        UserAttr:   mustGetString(j.settingService.GetLdapUserAttr),
+        FlagField:  mustGetStringOr(j.settingService.GetLdapFlagField, mustGetString(j.settingService.GetLdapVlessField)),
+        TruthyVals: splitCsv(mustGetString(j.settingService.GetLdapTruthyValues)),
+        Invert:     mustGetBool(j.settingService.GetLdapInvertFlag),
+    }
+
+    flags, err := ldaputil.FetchVlessFlags(cfg)
+    if err != nil {
+        logger.Warning("LDAP fetch failed:", err)
+        return
+    }
+    logger.Infof("Fetched %d LDAP flags", len(flags))
+
+    // --- Load all inbounds and all clients once ---
+    inboundTags := splitCsv(mustGetString(j.settingService.GetLdapInboundTags))
+    inbounds, err := j.inboundService.GetAllInbounds()
+    if err != nil {
+        logger.Warning("Failed to get inbounds:", err)
+        return
+    }
+
+    allClients := map[string]*model.Client{}  // email -> client
+    inboundMap := map[string]*model.Inbound{} // tag -> inbound
+    for _, ib := range inbounds {
+        inboundMap[ib.Tag] = ib
+        clients, _ := j.inboundService.GetClients(ib)
+        for i := range clients {
+            allClients[clients[i].Email] = &clients[i]
+        }
+    }
+
+    // --- Prepare batch operations ---
+    autoCreate := mustGetBool(j.settingService.GetLdapAutoCreate)
+    defGB := mustGetInt(j.settingService.GetLdapDefaultTotalGB)
+    defExpiryDays := mustGetInt(j.settingService.GetLdapDefaultExpiryDays)
+    defLimitIP := mustGetInt(j.settingService.GetLdapDefaultLimitIP)
+
+    clientsToCreate := map[string][]model.Client{} // tag -> []new clients
+    clientsToEnable := map[string][]string{}       // tag -> []email
+    clientsToDisable := map[string][]string{}      // tag -> []email
+
+    for email, allowed := range flags {
+        exists := allClients[email] != nil
+        for _, tag := range inboundTags {
+            if !exists && allowed && autoCreate {
+                newClient := j.buildClient(inboundMap[tag], email, defGB, defExpiryDays, defLimitIP)
+                clientsToCreate[tag] = append(clientsToCreate[tag], newClient)
+            } else if exists {
+                if allowed && !allClients[email].Enable {
+                    clientsToEnable[tag] = append(clientsToEnable[tag], email)
+                } else if !allowed && allClients[email].Enable {
+                    clientsToDisable[tag] = append(clientsToDisable[tag], email)
+                }
+            }
+        }
+    }
+
+    // --- Execute batch create ---
+    for tag, newClients := range clientsToCreate {
+        if len(newClients) == 0 {
+            continue
+        }
+        payload := &model.Inbound{Id: inboundMap[tag].Id}
+        payload.Settings = j.clientsToJSON(newClients)
+        if _, err := j.inboundService.AddInboundClient(payload); err != nil {
+            logger.Warningf("Failed to add clients for tag %s: %v", tag, err)
+        } else {
+            logger.Infof("LDAP auto-create: %d clients for %s", len(newClients), tag)
+            j.xrayService.SetToNeedRestart()
+        }
+    }
+
+    // --- Execute enable/disable batch ---
+    for tag, emails := range clientsToEnable {
+        j.batchSetEnable(inboundMap[tag], emails, true)
+    }
+    for tag, emails := range clientsToDisable {
+        j.batchSetEnable(inboundMap[tag], emails, false)
+    }
+
+    // --- Auto delete clients not in LDAP ---
+    autoDelete := mustGetBool(j.settingService.GetLdapAutoDelete)
+    if autoDelete {
+        ldapEmailSet := map[string]struct{}{}
+        for e := range flags {
+            ldapEmailSet[e] = struct{}{}
+        }
+        for _, tag := range inboundTags {
+            j.deleteClientsNotInLDAP(tag, ldapEmailSet)
+        }
+    }
+}
+
+
+
+func splitCsv(s string) []string {
+    if s == "" {
+        return DefaultTruthyValues
+    }
+    parts := strings.Split(s, ",")
+    out := make([]string, 0, len(parts))
+    for _, p := range parts {
+        v := strings.TrimSpace(p)
+        if v != "" {
+            out = append(out, v)
+        }
+    }
+    return out
+}
+
+
+// buildClient creates a new client for auto-create
+func (j *LdapSyncJob) buildClient(ib *model.Inbound, email string, defGB, defExpiryDays, defLimitIP int) model.Client {
+    c := model.Client{
+        Email:   email,
+        Enable:  true,
+        LimitIP: defLimitIP,
+        TotalGB: int64(defGB),
+    }
+    if defExpiryDays > 0 {
+        c.ExpiryTime = time.Now().Add(time.Duration(defExpiryDays) * 24 * time.Hour).UnixMilli()
+    }
+    switch ib.Protocol {
+    case model.Trojan, model.Shadowsocks:
+        c.Password = uuid.NewString()
+    default:
+        c.ID = uuid.NewString()
+    }
+    return c
+}
+
+// batchSetEnable enables/disables clients in batch through a single call
+func (j *LdapSyncJob) batchSetEnable(ib *model.Inbound, emails []string, enable bool) {
+    if len(emails) == 0 {
+        return
+    }
+
+    // Подготовка JSON для массового обновления
+    clients := make([]model.Client, 0, len(emails))
+    for _, email := range emails {
+        clients = append(clients, model.Client{
+            Email:  email,
+            Enable: enable,
+        })
+    }
+
+    payload := &model.Inbound{
+        Id:       ib.Id,
+        Settings: j.clientsToJSON(clients),
+    }
+
+    // Use a single AddInboundClient call to update enable
+    if _, err := j.inboundService.AddInboundClient(payload); err != nil {
+        logger.Warningf("Batch set enable failed for inbound %s: %v", ib.Tag, err)
+        return
+    }
+
+    logger.Infof("Batch set enable=%v for %d clients in inbound %s", enable, len(emails), ib.Tag)
+    j.xrayService.SetToNeedRestart()
+}
+
+// deleteClientsNotInLDAP performs batch deletion of clients not in LDAP
+func (j *LdapSyncJob) deleteClientsNotInLDAP(inboundTag string, ldapEmails map[string]struct{}) {
+    inbounds, err := j.inboundService.GetAllInbounds()
+    if err != nil {
+        logger.Warning("Failed to get inbounds for deletion:", err)
+        return
+    }
+
+    for _, ib := range inbounds {
+        if ib.Tag != inboundTag {
+            continue
+        }
+        clients, err := j.inboundService.GetClients(ib)
+        if err != nil {
+            continue
+        }
+
+        // Сбор клиентов для удаления
+        toDelete := []model.Client{}
+        for _, c := range clients {
+            if _, ok := ldapEmails[c.Email]; !ok {
+                // Use appropriate field depending on protocol
+                client := model.Client{Email: c.Email, ID: c.ID, Password: c.Password}
+                toDelete = append(toDelete, client)
+            }
+        }
+
+        if len(toDelete) == 0 {
+            continue
+        }
+
+        payload := &model.Inbound{
+            Id:       ib.Id,
+            Settings: j.clientsToJSON(toDelete),
+        }
+
+        if _, err := j.inboundService.DelInboundClient(payload.Id, payload.Settings); err != nil {
+            logger.Warningf("Batch delete failed for inbound %s: %v", ib.Tag, err)
+        } else {
+            logger.Infof("Batch deleted %d clients from inbound %s", len(toDelete), ib.Tag)
+            j.xrayService.SetToNeedRestart()
+        }
+    }
+}
+
+// clientsToJSON сериализует массив клиентов в JSON
+func (j *LdapSyncJob) clientsToJSON(clients []model.Client) string {
+    b := strings.Builder{}
+    b.WriteString("{\"clients\":[")
+    for i, c := range clients {
+        if i > 0 { b.WriteString(",") }
+        b.WriteString(j.clientToJSON(c))
+    }
+    b.WriteString("]}")
+    return b.String()
+}
+
+
+// ensureClientExists adds client with defaults to inbound tag if not present
+func (j *LdapSyncJob) ensureClientExists(inboundTag string, email string, defGB int, defExpiryDays int, defLimitIP int) {
+    inbounds, err := j.inboundService.GetAllInbounds()
+    if err != nil {
+        logger.Warning("ensureClientExists: get inbounds failed:", err)
+        return
+    }
+    var target *model.Inbound
+    for _, ib := range inbounds {
+        if ib.Tag == inboundTag {
+            target = ib
+            break
+        }
+    }
+    if target == nil {
+        logger.Debugf("ensureClientExists: inbound tag %s not found", inboundTag)
+        return
+    }
+    // check if email already exists in this inbound
+    clients, err := j.inboundService.GetClients(target)
+    if err == nil {
+        for _, c := range clients {
+            if c.Email == email {
+                return
+            }
+        }
+    }
+
+    // build new client according to protocol
+    newClient := model.Client{
+        Email:   email,
+        Enable:  true,
+        LimitIP: defLimitIP,
+        TotalGB: int64(defGB),
+    }
+    if defExpiryDays > 0 {
+        newClient.ExpiryTime = time.Now().Add(time.Duration(defExpiryDays) * 24 * time.Hour).UnixMilli()
+    }
+
+    switch target.Protocol {
+    case model.Trojan:
+        newClient.Password = uuid.NewString()
+    case model.Shadowsocks:
+        newClient.Password = uuid.NewString()
+    default: // VMESS/VLESS and others using ID
+        newClient.ID = uuid.NewString()
+    }
+
+    // prepare inbound payload with only the new client
+    payload := &model.Inbound{Id: target.Id}
+    payload.Settings = `{"clients":[` + j.clientToJSON(newClient) + `]}`
+
+    if _, err := j.inboundService.AddInboundClient(payload); err != nil {
+        logger.Warning("ensureClientExists: add client failed:", err)
+    } else {
+        j.xrayService.SetToNeedRestart()
+        logger.Infof("LDAP auto-create: %s in %s", email, inboundTag)
+    }
+}
+
+// clientToJSON serializes minimal client fields to JSON object string without extra deps
+func (j *LdapSyncJob) clientToJSON(c model.Client) string {
+    // construct minimal JSON manually to avoid importing json for simple case
+    b := strings.Builder{}
+    b.WriteString("{")
+    if c.ID != "" {
+        b.WriteString("\"id\":\"")
+        b.WriteString(c.ID)
+        b.WriteString("\",")
+    }
+    if c.Password != "" {
+        b.WriteString("\"password\":\"")
+        b.WriteString(c.Password)
+        b.WriteString("\",")
+    }
+    b.WriteString("\"email\":\"")
+    b.WriteString(c.Email)
+    b.WriteString("\",")
+    b.WriteString("\"enable\":")
+    if c.Enable { b.WriteString("true") } else { b.WriteString("false") }
+    b.WriteString(",")
+    b.WriteString("\"limitIp\":")
+    b.WriteString(strconv.Itoa(c.LimitIP))
+    b.WriteString(",")
+    b.WriteString("\"totalGB\":")
+    b.WriteString(strconv.FormatInt(c.TotalGB, 10))
+    if c.ExpiryTime > 0 {
+        b.WriteString(",\"expiryTime\":")
+        b.WriteString(strconv.FormatInt(c.ExpiryTime, 10))
+    }
+    b.WriteString("}")
+    return b.String()
+}
+
+

web/middleware/auth.go

@@ -0,0 +1,34 @@
+package middleware
+
+import (
+	"net/http"
+	"x-ui/web/service"
+	"github.com/gin-gonic/gin"
+)
+
+func ApiAuth() gin.HandlerFunc {
+	return func(c *gin.Context) {
+		apiKey := c.GetHeader("Api-Key")
+		if apiKey == "" {
+			c.JSON(http.StatusUnauthorized, gin.H{"error": "API key is required"})
+			c.Abort()
+			return
+		}
+
+		settingService := service.SettingService{}
+		panelAPIKey, err := settingService.GetAPIKey()
+		if err != nil || panelAPIKey == "" {
+			c.JSON(http.StatusInternalServerError, gin.H{"error": "API key not configured on the panel"})
+			c.Abort()
+			return
+		}
+
+		if apiKey != panelAPIKey {
+			c.JSON(http.StatusUnauthorized, gin.H{"error": "Invalid API key"})
+			c.Abort()
+			return
+		}
+
+		c.Next()
+	}
+}

web/service/inbound.go

@@ -3,8 +3,11 @@
 package service
 
 import (
+	"bytes"
 	"encoding/json"
 	"fmt"
+	"io"
+	"net/http"
 	"sort"
 	"strconv"
 	"strings"
@@ -673,6 +676,11 @@ func (s *InboundService) AddInboundClient(data *model.Inbound) (bool, error) {
 	}
 	s.xrayApi.Close()
 
+	if err == nil {
+		body, _ := json.Marshal(data)
+		s.syncWithSlaves("POST", "/panel/inbound/api/addClient", bytes.NewReader(body))
+	}
+
 	return needRestart, tx.Save(oldInbound).Error
 }
 
@@ -761,6 +769,11 @@ func (s *InboundService) DelInboundClient(inboundId int, clientId string) (bool,
 			s.xrayApi.Close()
 		}
 	}
+
+	if err == nil {
+		s.syncWithSlaves("POST", fmt.Sprintf("/panel/inbound/api/%d/delClient/%s", inboundId, clientId), nil)
+	}
+
 	return needRestart, db.Save(oldInbound).Error
 }
 
@@ -936,6 +949,12 @@ func (s *InboundService) UpdateInboundClient(data *model.Inbound, clientId strin
 		logger.Debug("Client old email not found")
 		needRestart = true
 	}
+
+	if err == nil {
+		body, _ := json.Marshal(data)
+		s.syncWithSlaves("POST", fmt.Sprintf("/panel/inbound/api/updateClient/%s", clientId), bytes.NewReader(body))
+	}
+
 	return needRestart, tx.Save(oldInbound).Error
 }
 
@@ -1569,6 +1588,23 @@ func (s *InboundService) ToggleClientEnableByEmail(clientEmail string) (bool, bo
 	return !clientOldEnabled, needRestart, nil
 }
 
+
+// SetClientEnableByEmail sets client enable state to desired value; returns (changed, needRestart, error)
+func (s *InboundService) SetClientEnableByEmail(clientEmail string, enable bool) (bool, bool, error) {
+    current, err := s.checkIsEnabledByEmail(clientEmail)
+    if err != nil {
+        return false, false, err
+    }
+    if current == enable {
+        return false, false, nil
+    }
+    newEnabled, needRestart, err := s.ToggleClientEnableByEmail(clientEmail)
+    if err != nil {
+        return false, needRestart, err
+    }
+    return newEnabled == enable, needRestart, nil
+}
+
 func (s *InboundService) ResetClientIpLimitByEmail(clientEmail string, count int) (bool, error) {
 	_, inbound, err := s.GetClientInboundByEmail(clientEmail)
 	if err != nil {
@@ -2363,6 +2399,44 @@ func (s *InboundService) FilterAndSortClientEmails(emails []string) ([]string, [
 
 	return validEmails, extraEmails, nil
 }
+
+func (s *InboundService) syncWithSlaves(method string, path string, body io.Reader) {
+	serverService := MultiServerService{}
+	servers, err := serverService.GetServers()
+	if err != nil {
+		logger.Warning("Failed to get servers for syncing:", err)
+		return
+	}
+
+	for _, server := range servers {
+		if !server.Enable {
+			continue
+		}
+
+		url := fmt.Sprintf("http://%s:%d%s", server.Address, server.Port, path)
+		req, err := http.NewRequest(method, url, body)
+		if err != nil {
+			logger.Warningf("Failed to create request for server %s: %v", server.Name, err)
+			continue
+		}
+
+		req.Header.Set("Content-Type", "application/json")
+		req.Header.Set("Api-Key", server.APIKey)
+
+		client := &http.Client{}
+		resp, err := client.Do(req)
+		if err != nil {
+			logger.Warningf("Failed to send request to server %s: %v", server.Name, err)
+			continue
+		}
+		defer resp.Body.Close()
+
+		if resp.StatusCode != http.StatusOK {
+			bodyBytes, _ := io.ReadAll(resp.Body)
+			logger.Warningf("Failed to sync with server %s. Status: %s, Body: %s", server.Name, resp.Status, string(bodyBytes))
+		}
+	}
+  
 func (s *InboundService) DelInboundClientByEmail(inboundId int, email string) (bool, error) {
 	oldInbound, err := s.GetInbound(inboundId)
 	if err != nil {
@@ -2454,4 +2528,5 @@ func (s *InboundService) DelInboundClientByEmail(inboundId int, email string) (b
 	}
 
 	return needRestart, db.Save(oldInbound).Error
+
 }

web/service/inbound_service_sync_test.go

@@ -0,0 +1,72 @@
+package service
+
+import (
+	"encoding/json"
+	"io"
+	"net/http"
+	"net/http/httptest"
+	"net/url"
+	"strconv"
+	"testing"
+	"x-ui/database"
+	"x-ui/database/model"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestInboundServiceSync(t *testing.T) {
+	setup()
+	defer teardown()
+
+	// Mock server to simulate a slave
+	var receivedApiKey string
+	var receivedBody []byte
+	mockSlave := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		receivedApiKey = r.Header.Get("Api-Key")
+		receivedBody, _ = io.ReadAll(r.Body)
+		w.WriteHeader(http.StatusOK)
+	}))
+	defer mockSlave.Close()
+
+	// Add the mock slave to the database
+	multiServerService := MultiServerService{}
+	mockSlaveURL, _ := url.Parse(mockSlave.URL)
+	mockSlavePort, _ := strconv.Atoi(mockSlaveURL.Port())
+	slaveServer := &model.Server{
+		Name:    "mock-slave",
+		Address: mockSlaveURL.Hostname(),
+		Port:    mockSlavePort,
+		APIKey:  "slave-api-key",
+		Enable:  true,
+	}
+	multiServerService.AddServer(slaveServer)
+
+	// Create a test inbound and client
+	inboundService := InboundService{}
+	db := database.GetDB()
+	testInbound := &model.Inbound{
+		UserId:   1,
+		Remark:   "test-inbound",
+		Enable:   true,
+		Settings: `{"clients":[]}`,
+	}
+	db.Create(testInbound)
+
+	clientData := model.Client{
+		Email: "test@example.com",
+		ID:    "test-id",
+	}
+	clientBytes, _ := json.Marshal([]model.Client{clientData})
+	inboundData := &model.Inbound{
+		Id:       testInbound.Id,
+		Settings: string(clientBytes),
+	}
+
+	// Test AddInboundClient sync
+	inboundService.AddInboundClient(inboundData)
+
+	assert.Equal(t, "slave-api-key", receivedApiKey)
+	var receivedInbound model.Inbound
+	json.Unmarshal(receivedBody, &receivedInbound)
+	assert.Equal(t, 1, receivedInbound.Id)
+}

web/service/multi_server_service.go

@@ -0,0 +1,37 @@
+package service
+
+import (
+	"x-ui/database"
+	"x-ui/database/model"
+)
+
+type MultiServerService struct{}
+
+func (s *MultiServerService) GetServers() ([]*model.Server, error) {
+	db := database.GetDB()
+	var servers []*model.Server
+	err := db.Find(&servers).Error
+	return servers, err
+}
+
+func (s *MultiServerService) GetServer(id int) (*model.Server, error) {
+	db := database.GetDB()
+	var server model.Server
+	err := db.First(&server, id).Error
+	return &server, err
+}
+
+func (s *MultiServerService) AddServer(server *model.Server) error {
+	db := database.GetDB()
+	return db.Create(server).Error
+}
+
+func (s *MultiServerService) UpdateServer(server *model.Server) error {
+	db := database.GetDB()
+	return db.Save(server).Error
+}
+
+func (s *MultiServerService) DeleteServer(id int) error {
+	db := database.GetDB()
+	return db.Delete(&model.Server{}, id).Error
+}

web/service/multi_server_service_test.go

@@ -0,0 +1,63 @@
+package service
+
+import (
+	"os"
+	"testing"
+	"x-ui/database"
+	"x-ui/database/model"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func setup() {
+	dbPath := "test.db"
+	os.Remove(dbPath)
+	database.InitDB(dbPath)
+}
+
+func teardown() {
+	db, _ := database.GetDB().DB()
+	db.Close()
+	os.Remove("test.db")
+}
+
+func TestMultiServerService(t *testing.T) {
+	setup()
+	defer teardown()
+
+	service := MultiServerService{}
+
+	// Test AddServer
+	server := &model.Server{
+		Name:    "test-server",
+		Address: "127.0.0.1",
+		Port:    54321,
+		APIKey:  "test-key",
+		Enable:  true,
+	}
+	err := service.AddServer(server)
+	assert.NoError(t, err)
+
+	// Test GetServer
+	retrievedServer, err := service.GetServer(server.Id)
+	assert.NoError(t, err)
+	assert.Equal(t, server.Name, retrievedServer.Name)
+
+	// Test GetServers
+	servers, err := service.GetServers()
+	assert.NoError(t, err)
+	assert.Len(t, servers, 1)
+
+	// Test UpdateServer
+	retrievedServer.Name = "updated-server"
+	err = service.UpdateServer(retrievedServer)
+	assert.NoError(t, err)
+	updatedServer, _ := service.GetServer(server.Id)
+	assert.Equal(t, "updated-server", updatedServer.Name)
+
+	// Test DeleteServer
+	err = service.DeleteServer(server.Id)
+	assert.NoError(t, err)
+	_, err = service.GetServer(server.Id)
+	assert.Error(t, err)
+}

web/service/setting.go

@@ -73,6 +73,27 @@ var defaultValueMap = map[string]string{
 	"warp":                        "",
 	"externalTrafficInformEnable": "false",
 	"externalTrafficInformURI":    "",
+	// LDAP defaults
+	"ldapEnable":                  "false",
+	"ldapHost":                    "",
+	"ldapPort":                    "389",
+	"ldapUseTLS":                  "false",
+	"ldapBindDN":                  "",
+	"ldapPassword":                "",
+	"ldapBaseDN":                  "",
+	"ldapUserFilter":              "(objectClass=person)",
+	"ldapUserAttr":                "mail",
+	"ldapVlessField":              "vless_enabled",
+	"ldapSyncCron":                "@every 1m",
+	"ldapFlagField":               "",
+	"ldapTruthyValues":            "true,1,yes,on",
+	"ldapInvertFlag":              "false",
+	"ldapInboundTags":             "",
+	"ldapAutoCreate":              "false",
+	"ldapAutoDelete":              "false",
+	"ldapDefaultTotalGB":          "0",
+	"ldapDefaultExpiryDays":       "0",
+	"ldapDefaultLimitIP":          "0",
 }
 
 // SettingService provides business logic for application settings management.
@@ -183,6 +204,21 @@ func (s *SettingService) getSetting(key string) (*model.Setting, error) {
 	return setting, nil
 }
 
+func (s *SettingService) GetAPIKey() (string, error) {
+	setting, err := s.getSetting("ApiKey")
+	if err != nil {
+		return "", err
+	}
+	if setting == nil {
+		return "", nil
+	}
+	return setting.Value, nil
+}
+
+func (s *SettingService) SetAPIKey(apiKey string) error {
+	return s.saveSetting("ApiKey", apiKey)
+}
+
 func (s *SettingService) saveSetting(key string, value string) error {
 	setting, err := s.getSetting(key)
 	db := database.GetDB()
@@ -542,6 +578,87 @@ func (s *SettingService) GetIpLimitEnable() (bool, error) {
 	return (accessLogPath != "none" && accessLogPath != ""), nil
 }
 
+// LDAP exported getters
+func (s *SettingService) GetLdapEnable() (bool, error) {
+    return s.getBool("ldapEnable")
+}
+
+func (s *SettingService) GetLdapHost() (string, error) {
+    return s.getString("ldapHost")
+}
+
+func (s *SettingService) GetLdapPort() (int, error) {
+    return s.getInt("ldapPort")
+}
+
+func (s *SettingService) GetLdapUseTLS() (bool, error) {
+    return s.getBool("ldapUseTLS")
+}
+
+func (s *SettingService) GetLdapBindDN() (string, error) {
+    return s.getString("ldapBindDN")
+}
+
+func (s *SettingService) GetLdapPassword() (string, error) {
+    return s.getString("ldapPassword")
+}
+
+func (s *SettingService) GetLdapBaseDN() (string, error) {
+    return s.getString("ldapBaseDN")
+}
+
+func (s *SettingService) GetLdapUserFilter() (string, error) {
+    return s.getString("ldapUserFilter")
+}
+
+func (s *SettingService) GetLdapUserAttr() (string, error) {
+    return s.getString("ldapUserAttr")
+}
+
+func (s *SettingService) GetLdapVlessField() (string, error) {
+    return s.getString("ldapVlessField")
+}
+
+func (s *SettingService) GetLdapSyncCron() (string, error) {
+    return s.getString("ldapSyncCron")
+}
+
+func (s *SettingService) GetLdapFlagField() (string, error) {
+    return s.getString("ldapFlagField")
+}
+
+func (s *SettingService) GetLdapTruthyValues() (string, error) {
+    return s.getString("ldapTruthyValues")
+}
+
+func (s *SettingService) GetLdapInvertFlag() (bool, error) {
+    return s.getBool("ldapInvertFlag")
+}
+
+func (s *SettingService) GetLdapInboundTags() (string, error) {
+    return s.getString("ldapInboundTags")
+}
+
+func (s *SettingService) GetLdapAutoCreate() (bool, error) {
+    return s.getBool("ldapAutoCreate")
+}
+
+func (s *SettingService) GetLdapAutoDelete() (bool, error) {
+    return s.getBool("ldapAutoDelete")
+}
+
+func (s *SettingService) GetLdapDefaultTotalGB() (int, error) {
+    return s.getInt("ldapDefaultTotalGB")
+}
+
+func (s *SettingService) GetLdapDefaultExpiryDays() (int, error) {
+    return s.getInt("ldapDefaultExpiryDays")
+}
+
+func (s *SettingService) GetLdapDefaultLimitIP() (int, error) {
+    return s.getInt("ldapDefaultLimitIP")
+}
+
 func (s *SettingService) UpdateAllSetting(allSetting *entity.AllSetting) error {
 	if err := allSetting.CheckValid(); err != nil {
 		return err

web/service/user.go

@@ -7,7 +7,7 @@ import (
 	"github.com/mhsanaei/3x-ui/v2/database/model"
 	"github.com/mhsanaei/3x-ui/v2/logger"
 	"github.com/mhsanaei/3x-ui/v2/util/crypto"
-
+    ldaputil "github.com/mhsanaei/3x-ui/v2/util/ldap"
 	"github.com/xlzd/gotp"
 	"gorm.io/gorm"
 )
@@ -49,9 +49,38 @@ func (s *UserService) CheckUser(username string, password string, twoFactorCode
 		return nil
 	}
 
-	if !crypto.CheckPasswordHash(user.Password, password) {
+    // If LDAP enabled and local password check fails, attempt LDAP auth
-		return nil
+    if !crypto.CheckPasswordHash(user.Password, password) {
-	}
+        ldapEnabled, _ := s.settingService.GetLdapEnable()
+        if !ldapEnabled {
+            return nil
+        }
+
+        host, _ := s.settingService.GetLdapHost()
+        port, _ := s.settingService.GetLdapPort()
+        useTLS, _ := s.settingService.GetLdapUseTLS()
+        bindDN, _ := s.settingService.GetLdapBindDN()
+        ldapPass, _ := s.settingService.GetLdapPassword()
+        baseDN, _ := s.settingService.GetLdapBaseDN()
+        userFilter, _ := s.settingService.GetLdapUserFilter()
+        userAttr, _ := s.settingService.GetLdapUserAttr()
+
+        cfg := ldaputil.Config{
+            Host: host,
+            Port: port,
+            UseTLS: useTLS,
+            BindDN: bindDN,
+            Password: ldapPass,
+            BaseDN: baseDN,
+            UserFilter: userFilter,
+            UserAttr: userAttr,
+        }
+        ok, err := ldaputil.AuthenticateUser(cfg, username, password)
+        if err != nil || !ok {
+            return nil
+        }
+        // On successful LDAP auth, continue 2FA checks below
+    }
 
 	twoFactorEnable, err := s.settingService.GetTwoFactorEnable()
 	if err != nil {

web/web.go

@@ -314,6 +314,18 @@ func (s *Server) startTask() {
 	// Run once a month, midnight, first of month
 	s.cron.AddJob("@monthly", job.NewPeriodicTrafficResetJob("monthly"))
 
+    // LDAP sync scheduling
+    if ldapEnabled, _ := s.settingService.GetLdapEnable(); ldapEnabled {
+        runtime, err := s.settingService.GetLdapSyncCron()
+        if err != nil || runtime == "" {
+            runtime = "@every 1m"
+        }
+        j := job.NewLdapSyncJob()
+        // job has zero-value services with method receivers that read settings on demand
+        s.cron.AddJob(runtime, j)
+    }
+
+
 	// Make a traffic condition every day, 8:30
 	var entry cron.EntryID
 	isTgbotenabled, err := s.settingService.GetTgbotEnabled()