diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index acb6b1f7..a10a76b7 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -9,18 +9,19 @@ jobs:
     runs-on: ubuntu-latest
     services:
       mysql:
-          image: mysql:5.7
-          env:
-            MYSQL_DATABASE: casdoor
-            MYSQL_ROOT_PASSWORD: 123456
-          ports:
-              - 3306:3306
-          options: --health-cmd="mysqladmin ping" --health-interval=10s --health-timeout=5s --health-retries=3
+        image: mysql:5.7
+        env:
+          MYSQL_DATABASE: casdoor
+          MYSQL_ROOT_PASSWORD: 123456
+        ports:
+          - 3306:3306
+        options: --health-cmd="mysqladmin ping" --health-interval=10s --health-timeout=5s --health-retries=3
     steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-go@v2
+      - uses: actions/checkout@v3
+      - uses: actions/setup-go@v4
         with:
           go-version: '^1.16.5'
+          cache-dependency-path: ./go.mod
       - name: Tests
         run: |
           go test -v $(go list ./...) -tags skipCi
@@ -31,14 +32,12 @@ jobs:
     runs-on: ubuntu-latest
     needs: [ go-tests ]
     steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-node@v2
+      - uses: actions/checkout@v3
+      - uses: actions/setup-node@v3
         with:
           node-version: 16
-      # cache
-      - uses: c-hive/gha-yarn-cache@v2
-        with:
-          directory: ./web
+          cache: 'yarn'
+          cache-dependency-path: ./web/yarn.lock
       - run: yarn install && CI=false yarn run build
         working-directory: ./web
 
@@ -47,10 +46,11 @@ jobs:
     runs-on: ubuntu-latest
     needs: [ go-tests ]
     steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-go@v2
+      - uses: actions/checkout@v3
+      - uses: actions/setup-go@v4
         with:
           go-version: '^1.16.5'
+          cache-dependency-path: ./go.mod
       - run: go version
       - name: Build
         run: |
@@ -63,13 +63,14 @@ jobs:
     needs: [ go-tests ]
     steps:
       - uses: actions/checkout@v3
-      - uses: actions/setup-go@v3
+      - uses: actions/setup-go@v4
         with:
           go-version: '^1.16.5'
+          cache-dependency-path: ./go.mod
 
       # gen a dummy config file
       - run: touch dummy.yml
-      
+
       - name: golangci-lint
         uses: golangci/golangci-lint-action@v3
         with:
@@ -82,35 +83,35 @@ jobs:
     needs: [ go-tests ]
     services:
       mysql:
-          image: mysql:5.7
-          env:
-            MYSQL_DATABASE: casdoor
-            MYSQL_ROOT_PASSWORD: 123456
-          ports:
-              - 3306:3306
-          options: --health-cmd="mysqladmin ping" --health-interval=10s --health-timeout=5s --health-retries=3
+        image: mysql:5.7
+        env:
+          MYSQL_DATABASE: casdoor
+          MYSQL_ROOT_PASSWORD: 123456
+        ports:
+          - 3306:3306
+        options: --health-cmd="mysqladmin ping" --health-interval=10s --health-timeout=5s --health-retries=3
     steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-go@v2
+      - uses: actions/checkout@v3
+      - uses: actions/setup-go@v4
         with:
           go-version: '^1.16.5'
-      - uses: actions/setup-node@v2
-        with:
-          node-version: 16    
-      - name: back start
+          cache-dependency-path: ./go.mod
+      - name: start backend
         run: nohup go run ./main.go &
         working-directory: ./
-      - name: front install
-        run: yarn install
-        working-directory: ./web
-      - name: front start
-        run: nohup yarn start &
-        working-directory: ./web  
-      - uses: cypress-io/github-action@v4
+      - uses: actions/setup-node@v3
         with:
-          working-directory: ./web
+          node-version: 16
+          cache: 'yarn'
+          cache-dependency-path: ./web/yarn.lock
+      - run: yarn install
+        working-directory: ./web
+      - uses: cypress-io/github-action@v5
+        with:
+          start: yarn start
           wait-on: 'http://localhost:7001'
           wait-on-timeout: 180
+          working-directory: ./web
 
       - uses: actions/upload-artifact@v3
         if: failure()
@@ -121,7 +122,7 @@ jobs:
         if: always()
         with:
           name: cypress-videos
-          path: ./web/cypress/videos    
+          path: ./web/cypress/videos
 
   release-and-push:
     name: Release And Push
@@ -130,11 +131,11 @@ jobs:
     needs: [ frontend, backend, linter, e2e ]
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
         with:
           fetch-depth: -1
       - name: Setup Node.js
-        uses: actions/setup-node@v2
+        uses: actions/setup-node@v3
         with:
           node-version: 16
 
@@ -166,10 +167,10 @@ jobs:
           elif [ ${old_array[1]} != ${new_array[1]} ]
           then 
               echo ::set-output name=push::'true'
-              
+          
           else
               echo ::set-output name=push::'false'
-              
+          
           fi
 
       - name: Set up QEMU
diff --git a/controllers/ldapserver.go b/ldap/server.go
similarity index 54%
rename from controllers/ldapserver.go
rename to ldap/server.go
index daeb0295..fc488ae5 100644
--- a/controllers/ldapserver.go
+++ b/ldap/server.go
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-package controllers
+package ldap
 
 import (
 	"fmt"
@@ -20,76 +20,78 @@ import (
 
 	"github.com/casdoor/casdoor/conf"
 	"github.com/casdoor/casdoor/object"
-	"github.com/forestmgy/ldapserver"
+	ldap "github.com/forestmgy/ldapserver"
 	"github.com/lor00x/goldap/message"
 )
 
 func StartLdapServer() {
-	server := ldapserver.NewServer()
-	routes := ldapserver.NewRouteMux()
+	server := ldap.NewServer()
+	routes := ldap.NewRouteMux()
 
 	routes.Bind(handleBind)
 	routes.Search(handleSearch).Label(" SEARCH****")
 
 	server.Handle(routes)
-	server.ListenAndServe("0.0.0.0:" + conf.GetConfigString("ldapServerPort"))
+	err := server.ListenAndServe("0.0.0.0:" + conf.GetConfigString("ldapServerPort"))
+	if err != nil {
+		return
+	}
 }
 
-func handleBind(w ldapserver.ResponseWriter, m *ldapserver.Message) {
+func handleBind(w ldap.ResponseWriter, m *ldap.Message) {
 	r := m.GetBindRequest()
-	res := ldapserver.NewBindResponse(ldapserver.LDAPResultSuccess)
+	res := ldap.NewBindResponse(ldap.LDAPResultSuccess)
 
 	if r.AuthenticationChoice() == "simple" {
-		bindusername, bindorg, err := object.GetNameAndOrgFromDN(string(r.Name()))
+		bindUsername, bindOrg, err := getNameAndOrgFromDN(string(r.Name()))
 		if err != "" {
 			log.Printf("Bind failed ,ErrMsg=%s", err)
-			res.SetResultCode(ldapserver.LDAPResultInvalidDNSyntax)
+			res.SetResultCode(ldap.LDAPResultInvalidDNSyntax)
 			res.SetDiagnosticMessage("bind failed ErrMsg: " + err)
 			w.Write(res)
 			return
 		}
-		bindpassword := string(r.AuthenticationSimple())
-		binduser, err := object.CheckUserPassword(bindorg, bindusername, bindpassword, "en")
+
+		bindPassword := string(r.AuthenticationSimple())
+		bindUser, err := object.CheckUserPassword(object.CasdoorOrganization, bindUsername, bindPassword, "en")
 		if err != "" {
 			log.Printf("Bind failed User=%s, Pass=%#v, ErrMsg=%s", string(r.Name()), r.Authentication(), err)
-			res.SetResultCode(ldapserver.LDAPResultInvalidCredentials)
+			res.SetResultCode(ldap.LDAPResultInvalidCredentials)
 			res.SetDiagnosticMessage("invalid credentials ErrMsg: " + err)
 			w.Write(res)
 			return
 		}
-		if bindorg == "built-in" {
+
+		if bindOrg == "built-in" || bindUser.IsGlobalAdmin {
 			m.Client.IsGlobalAdmin, m.Client.IsOrgAdmin = true, true
-		} else if binduser.IsAdmin {
+		} else if bindUser.IsAdmin {
 			m.Client.IsOrgAdmin = true
 		}
+
 		m.Client.IsAuthenticated = true
-		m.Client.UserName = bindusername
-		m.Client.OrgName = bindorg
+		m.Client.UserName = bindUsername
+		m.Client.OrgName = bindOrg
 	} else {
-		res.SetResultCode(ldapserver.LDAPResultAuthMethodNotSupported)
+		res.SetResultCode(ldap.LDAPResultAuthMethodNotSupported)
 		res.SetDiagnosticMessage("Authentication method not supported,Please use Simple Authentication")
 	}
 	w.Write(res)
 }
 
-func handleSearch(w ldapserver.ResponseWriter, m *ldapserver.Message) {
-	res := ldapserver.NewSearchResultDoneResponse(ldapserver.LDAPResultSuccess)
+func handleSearch(w ldap.ResponseWriter, m *ldap.Message) {
+	res := ldap.NewSearchResultDoneResponse(ldap.LDAPResultSuccess)
 	if !m.Client.IsAuthenticated {
-		res.SetResultCode(ldapserver.LDAPResultUnwillingToPerform)
+		res.SetResultCode(ldap.LDAPResultUnwillingToPerform)
 		w.Write(res)
 		return
 	}
+
 	r := m.GetSearchRequest()
 	if r.FilterString() == "(objectClass=*)" {
 		w.Write(res)
 		return
 	}
-	name, org, errCode := object.GetUserNameAndOrgFromBaseDnAndFilter(string(r.BaseObject()), r.FilterString())
-	if errCode != ldapserver.LDAPResultSuccess {
-		res.SetResultCode(errCode)
-		w.Write(res)
-		return
-	}
+
 	// Handle Stop Signal (server stop / client disconnected / Abandoned request....)
 	select {
 	case <-m.Done:
@@ -97,16 +99,17 @@ func handleSearch(w ldapserver.ResponseWriter, m *ldapserver.Message) {
 		return
 	default:
 	}
-	users, errCode := object.GetFilteredUsers(m, name, org)
-	if errCode != ldapserver.LDAPResultSuccess {
-		res.SetResultCode(errCode)
+
+	users, code := GetFilteredUsers(m)
+	if code != ldap.LDAPResultSuccess {
+		res.SetResultCode(code)
 		w.Write(res)
 		return
 	}
-	for i := 0; i < len(users); i++ {
-		user := users[i]
+
+	for _, user := range users {
 		dn := fmt.Sprintf("cn=%s,%s", user.Name, string(r.BaseObject()))
-		e := ldapserver.NewSearchResultEntry(dn)
+		e := ldap.NewSearchResultEntry(dn)
 		e.AddAttribute("cn", message.AttributeValue(user.Name))
 		e.AddAttribute("uid", message.AttributeValue(user.Name))
 		e.AddAttribute("email", message.AttributeValue(user.Email))
@@ -117,22 +120,3 @@ func handleSearch(w ldapserver.ResponseWriter, m *ldapserver.Message) {
 	}
 	w.Write(res)
 }
-
-// get user password with hash type prefix
-// TODO not handle salt yet
-// @return {md5}5f4dcc3b5aa765d61d8327deb882cf99
-func getUserPasswordWithType(user *object.User) string {
-	org := object.GetOrganizationByUser(user)
-	if org.PasswordType == "" || org.PasswordType == "plain" {
-		return user.Password
-	}
-	prefix := org.PasswordType
-	if prefix == "salt" {
-		prefix = "sha256"
-	} else if prefix == "md5-salt" {
-		prefix = "md5"
-	} else if prefix == "pbkdf2-salt" {
-		prefix = "pbkdf2"
-	}
-	return fmt.Sprintf("{%s}%s", prefix, user.Password)
-}
diff --git a/ldap/util.go b/ldap/util.go
new file mode 100644
index 00000000..640bc929
--- /dev/null
+++ b/ldap/util.go
@@ -0,0 +1,116 @@
+// Copyright 2022 The Casdoor Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package ldap
+
+import (
+	"fmt"
+	"log"
+	"strings"
+
+	"github.com/casdoor/casdoor/object"
+	"github.com/casdoor/casdoor/util"
+
+	ldap "github.com/forestmgy/ldapserver"
+)
+
+func getNameAndOrgFromDN(DN string) (string, string, string) {
+	DNFields := strings.Split(DN, ",")
+	params := make(map[string]string, len(DNFields))
+	for _, field := range DNFields {
+		if strings.Contains(field, "=") {
+			k := strings.Split(field, "=")
+			params[k[0]] = k[1]
+		}
+	}
+
+	if params["cn"] == "" {
+		return "", "", "please use Admin Name format like cn=xxx,ou=xxx,dc=example,dc=com"
+	}
+	if params["ou"] == "" {
+		return params["cn"], object.CasdoorOrganization, ""
+	}
+	return params["cn"], params["ou"], ""
+}
+
+func getNameAndOrgFromFilter(baseDN, filter string) (string, string, int) {
+	if !strings.Contains(baseDN, "ou=") {
+		return "", "", ldap.LDAPResultInvalidDNSyntax
+	}
+
+	name, org, _ := getNameAndOrgFromDN(fmt.Sprintf("cn=%s,", getUsername(filter)) + baseDN)
+	return name, org, ldap.LDAPResultSuccess
+}
+
+func getUsername(filter string) string {
+	nameIndex := strings.Index(filter, "cn=")
+	if nameIndex == -1 {
+		return "*"
+	}
+
+	var name string
+	for i := nameIndex + 3; filter[i] != ')'; i++ {
+		name = name + string(filter[i])
+	}
+	return name
+}
+
+func GetFilteredUsers(m *ldap.Message) (filteredUsers []*object.User, code int) {
+	r := m.GetSearchRequest()
+	name, org, code := getNameAndOrgFromFilter(string(r.BaseObject()), r.FilterString())
+	if code != ldap.LDAPResultSuccess {
+		return nil, code
+	}
+
+	if name == "*" && m.Client.IsOrgAdmin { // get all users from organization 'org'
+		if m.Client.IsGlobalAdmin && org == "*" {
+			filteredUsers = object.GetGlobalUsers()
+			return filteredUsers, ldap.LDAPResultSuccess
+		}
+		if m.Client.IsGlobalAdmin || org == m.Client.OrgName {
+			filteredUsers = object.GetUsers(org)
+			return filteredUsers, ldap.LDAPResultSuccess
+		} else {
+			return nil, ldap.LDAPResultInsufficientAccessRights
+		}
+	} else {
+		hasPermission, err := object.CheckUserPermission(fmt.Sprintf("%s/%s", m.Client.OrgName, m.Client.UserName), fmt.Sprintf("%s/%s", org, name), org, true, "en")
+		if !hasPermission {
+			log.Printf("ErrMsg = %v", err.Error())
+			return nil, ldap.LDAPResultInsufficientAccessRights
+		}
+		user := object.GetUser(util.GetId(org, name))
+		filteredUsers = append(filteredUsers, user)
+		return filteredUsers, ldap.LDAPResultSuccess
+	}
+}
+
+// get user password with hash type prefix
+// TODO not handle salt yet
+// @return {md5}5f4dcc3b5aa765d61d8327deb882cf99
+func getUserPasswordWithType(user *object.User) string {
+	org := object.GetOrganizationByUser(user)
+	if org.PasswordType == "" || org.PasswordType == "plain" {
+		return user.Password
+	}
+	prefix := org.PasswordType
+	if prefix == "salt" {
+		prefix = "sha256"
+	} else if prefix == "md5-salt" {
+		prefix = "md5"
+	} else if prefix == "pbkdf2-salt" {
+		prefix = "pbkdf2"
+	}
+	return fmt.Sprintf("{%s}%s", prefix, user.Password)
+}
diff --git a/main.go b/main.go
index 4fbf07e8..09b565f1 100644
--- a/main.go
+++ b/main.go
@@ -23,7 +23,7 @@ import (
 	_ "github.com/beego/beego/session/redis"
 	"github.com/casdoor/casdoor/authz"
 	"github.com/casdoor/casdoor/conf"
-	"github.com/casdoor/casdoor/controllers"
+	"github.com/casdoor/casdoor/ldap"
 	"github.com/casdoor/casdoor/object"
 	"github.com/casdoor/casdoor/proxy"
 	"github.com/casdoor/casdoor/routers"
@@ -81,7 +81,7 @@ func main() {
 	// logs.SetLevel(logs.LevelInformational)
 	logs.SetLogFuncCall(false)
 
-	go controllers.StartLdapServer()
+	go ldap.StartLdapServer()
 
 	beego.Run(fmt.Sprintf(":%v", port))
 }
diff --git a/object/ldap.go b/object/ldap.go
index 7c82e818..f7f441c5 100644
--- a/object/ldap.go
+++ b/object/ldap.go
@@ -115,7 +115,7 @@ func LdapUsersToLdapRespUsers(users []ldapUser) []LdapRespUser {
 }
 
 func isMicrosoftAD(Conn *goldap.Conn) (bool, error) {
-	SearchFilter := "(objectclass=*)"
+	SearchFilter := "(objectClass=*)"
 	SearchAttributes := []string{"vendorname", "vendorversion", "isGlobalCatalogReady", "forestFunctionality"}
 
 	searchReq := goldap.NewSearchRequest("",
@@ -126,7 +126,7 @@ func isMicrosoftAD(Conn *goldap.Conn) (bool, error) {
 		return false, err
 	}
 	if len(searchResult.Entries) == 0 {
-		return false, errors.New("no result")
+		return false, nil
 	}
 	isMicrosoft := false
 	var ldapServerType ldapServerType
diff --git a/object/ldapserver.go b/object/ldapserver.go
deleted file mode 100644
index 3156748f..00000000
--- a/object/ldapserver.go
+++ /dev/null
@@ -1,74 +0,0 @@
-// Copyright 2022 The Casdoor Authors. All Rights Reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package object
-
-import (
-	"fmt"
-	"log"
-	"strings"
-
-	"github.com/forestmgy/ldapserver"
-)
-
-func GetNameAndOrgFromDN(DN string) (string, string, string) {
-	DNValue := strings.Split(DN, ",")
-	if len(DNValue) == 1 || strings.ToLower(DNValue[0])[0] != 'c' || strings.ToLower(DNValue[1])[0] != 'o' {
-		return "", "", "please use correct Admin Name format like cn=xxx,ou=xxx,dc=example,dc=com"
-	}
-	return DNValue[0][3:], DNValue[1][3:], ""
-}
-
-func GetUserNameAndOrgFromBaseDnAndFilter(baseDN, filter string) (string, string, int) {
-	if !strings.Contains(baseDN, "ou=") || !strings.Contains(filter, "cn=") {
-		return "", "", ldapserver.LDAPResultInvalidDNSyntax
-	}
-	name := getUserNameFromFilter(filter)
-	_, org, _ := GetNameAndOrgFromDN(fmt.Sprintf("cn=%s,", name) + baseDN)
-	errCode := ldapserver.LDAPResultSuccess
-	return name, org, errCode
-}
-
-func getUserNameFromFilter(filter string) string {
-	nameIndex := strings.Index(filter, "cn=")
-	var name string
-	for i := nameIndex + 3; filter[i] != ')'; i++ {
-		name = name + string(filter[i])
-	}
-	return name
-}
-
-func GetFilteredUsers(m *ldapserver.Message, name, org string) ([]*User, int) {
-	var filteredUsers []*User
-	if name == "*" && m.Client.IsOrgAdmin { // get all users from organization 'org'
-		if m.Client.OrgName == "built-in" && org == "*" {
-			filteredUsers = GetGlobalUsers()
-			return filteredUsers, ldapserver.LDAPResultSuccess
-		} else if m.Client.OrgName == "built-in" || org == m.Client.OrgName {
-			filteredUsers = GetUsers(org)
-			return filteredUsers, ldapserver.LDAPResultSuccess
-		} else {
-			return nil, ldapserver.LDAPResultInsufficientAccessRights
-		}
-	} else {
-		hasPermission, err := CheckUserPermission(fmt.Sprintf("%s/%s", m.Client.OrgName, m.Client.UserName), fmt.Sprintf("%s/%s", org, name), org, true, "en")
-		if !hasPermission {
-			log.Printf("ErrMsg = %v", err.Error())
-			return nil, ldapserver.LDAPResultInsufficientAccessRights
-		}
-		user := getUser(org, name)
-		filteredUsers = append(filteredUsers, user)
-		return filteredUsers, ldapserver.LDAPResultSuccess
-	}
-}