邮箱校验支持正则表达式，邮箱校验支持黑名单

Masuit.Tools.Abstractions/Validator/IsEmailAttribute.cs

@@ -1,6 +1,7 @@
 using Masuit.Tools.Core.Config;
 using System.ComponentModel.DataAnnotations;
 using System.Linq;
+using System.Text.RegularExpressions;
 
 namespace Masuit.Tools.Core.Validator
 {
@@ -14,15 +15,21 @@ namespace Masuit.Tools.Core.Validator
         /// <summary>
         /// 域白名单
         /// </summary>
-        private string DomainWhiteList { get; }
+        private string WhiteList { get; }
 
         /// <summary>
-        /// 可在配置文件AppSetting节中添加EmailDomainWhiteList配置邮箱域名白名单，逗号分隔
+        /// 域黑名单
+        /// </summary>
+        private string BlockList { get; }
+
+        /// <summary>
+        /// 可在配置文件AppSetting节中添加EmailDomainWhiteList配置邮箱域名白名单，EmailDomainBlockList配置邮箱域名黑名单，逗号分隔，每个单独的元素支持正则表达式
         /// </summary>
         /// <param name="valid">是否检查邮箱的有效性</param>
         public IsEmailAttribute(bool valid = true)
         {
-            DomainWhiteList = ConfigHelper.GetConfigOrDefault("EmailDomainWhiteList", string.Empty);
+            WhiteList = Regex.Replace(ConfigHelper.GetConfigOrDefault("EmailDomainWhiteList"), @"(\w)\.([a-z]+),?", @"$1\.$2!").Trim('!');
+            BlockList = Regex.Replace(ConfigHelper.GetConfigOrDefault("EmailDomainBlockList"), @"(\w)\.([a-z]+),?", @"$1\.$2!").Trim('!');
             _valid = valid;
         }
 
@@ -39,7 +46,7 @@ namespace Masuit.Tools.Core.Validator
                 return false;
             }
 
-            var email = value as string;
+            var email = (string)value;
             if (email.Length < 7)
             {
                 ErrorMessage = "您输入的邮箱格式不正确！";
@@ -48,11 +55,17 @@ namespace Masuit.Tools.Core.Validator
 
             if (email.Length > 256)
             {
-                ErrorMessage = "邮箱长度最大允许255个字符！";
+                ErrorMessage = "您输入的邮箱无效，请使用真实有效的邮箱地址！";
+                return false;
+            }
+
+            if (!string.IsNullOrEmpty(BlockList) && BlockList.Split('!').Any(item => Regex.IsMatch(email, item)))
+            {
+                ErrorMessage = "您输入的邮箱无效，请使用真实有效的邮箱地址！";
                 return false;
             }
 
-            if (DomainWhiteList.Split(',').Any(item => email.EndsWith("@" + item)))
+            if (!string.IsNullOrEmpty(WhiteList) && WhiteList.Split('!').Any(item => Regex.IsMatch(email, item)))
             {
                 return true;
             }