refactor(LDAP): 用户登录优化

--story=1004504 --user=lyh
LDAP用户登录优化
https://www.tapd.cn/55049933/s/1090284

backend/src/main/java/io/metersphere/ldap/service/LdapService.java

@@ -63,9 +63,6 @@ public class LdapService {
 
         // 检查属性是否存在
         getMappingAttr("name", dirContextOperations);
-        getMappingAttr("email", dirContextOperations);
-
-
         return dirContextOperations;
     }
 
@@ -85,17 +82,12 @@ public class LdapService {
         }
 
         DirContextOperations dirContext = authenticate(request);
-        String email = getMappingAttr("email", dirContext);
+        String email = getNotRequiredMappingAttr("email", dirContext);
         String userId = getMappingAttr("username", dirContext);
 
         SecurityUtils.getSubject().getSession().setAttribute("authenticate", UserSource.LDAP.name());
         SecurityUtils.getSubject().getSession().setAttribute("email", email);
 
-
-        if (StringUtils.isBlank(email)) {
-            MSException.throwException(Translator.get("login_fail_email_null"));
-        }
-
         // userId 或 email 有一个相同即为存在本地用户
         User u = userService.selectUser(userId, email);
         String name = getMappingAttr("name", dirContext);
@@ -106,6 +98,9 @@ public class LdapService {
             User user = new User();
             user.setId(userId);
             user.setName(name);
+            if (StringUtils.isBlank(email)) {
+                email = userId + "@localhost.localhost";
+            }
             user.setEmail(email);
 
             if (StringUtils.isNotBlank(phone)) {

backend/src/main/java/io/metersphere/service/UserService.java

@@ -164,15 +164,16 @@ public class UserService {
     public User selectUser(String userId, String email) {
         User user = userMapper.selectByPrimaryKey(userId);
         if (user == null) {
-            UserExample example = new UserExample();
-            example.createCriteria().andEmailEqualTo(email);
-            List<User> users = userMapper.selectByExample(example);
-            if (!CollectionUtils.isEmpty(users)) {
-                return users.get(0);
+            if (StringUtils.isNotBlank(email)) {
+                UserExample example = new UserExample();
+                example.createCriteria().andEmailEqualTo(email);
+                List<User> users = userMapper.selectByExample(example);
+                if (!CollectionUtils.isEmpty(users)) {
+                    return users.get(0);
+                }
             }
         }
         return user;
-
     }
 
     private void checkUserParam(User user) {