修改隐藏邮箱的算法

2024-07-31 10:01:48 +08:00
parent a2ca3a8245
commit 52b60338c3
4 changed files with 55 additions and 21 deletions
@@ -0,0 +1,44 @@
+using NPOI.SS.Formula.Functions;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace IRaCIS.Core.Application.Helper
+{
+    public static class EmailMaskHelper
+    {
+
+        //显示位数：3分之2的位数，向上取整
+        //取哪几个个值：最后一位和前面几位
+        //其他：3个***。
+        //比如：hlj23@126.com
+        //为：hlj***3@126.com
+
+        //he@126.com
+        //为：h*** e@126.com
+
+        public static string MaskEmail(string email)
+        {
+
+            // 找到 "@" 符号的位置
+            int atIndex = email.IndexOf('@');
+
+            string visiblePartBefore = email.Substring(0, atIndex);
+
+            string afterAt = email.Substring(atIndex + 1);
+
+            int visibleLength = (int)Math.Ceiling((double)visiblePartBefore.Length * 2 / 3);
+
+            // 替换中间两位字符为星号
+            string hiddenPartBeforeAt = visiblePartBefore.Substring(0, visibleLength - 1) + "***" + visiblePartBefore.Last();
+
+
+            // 组合隐藏和可见部分
+            string hiddenEmail = hiddenPartBeforeAt + "@" + afterAt;
+
+            return hiddenEmail; 
+        }
+    }
+}