125 lines
4.0 KiB
C#
125 lines
4.0 KiB
C#
using System;
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using System.Text.RegularExpressions;
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namespace Kill.Utils
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{
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/// <summary>
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/// 验证工具类
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/// 提供常用的数据验证方法
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/// </summary>
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public static class ValidationUtils
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{
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#region 邮箱验证
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/// <summary>
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/// 验证邮箱格式是否有效（正则验证，更严格）
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/// </summary>
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public static bool IsValidEmailStrict(string email)
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{
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if (string.IsNullOrEmpty(email))
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return false;
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// RFC 5322 标准邮箱正则
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string pattern = @"^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$";
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return Regex.IsMatch(email, pattern);
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}
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#endregion
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#region 密码验证
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/// <summary>
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/// 验证简单密码格式（6位数字）
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/// </summary>
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public static bool IsValidSimplePassword(string password)
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{
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if (string.IsNullOrEmpty(password))
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return false;
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// 6位数字
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string pattern = @"^\d{6}$";
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return Regex.IsMatch(password, pattern);
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}
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/// <summary>
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/// 验证复杂密码格式（6-16位，同时包含数字、字母和特殊字符）
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/// </summary>
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public static bool IsValidComplexPassword(string password)
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{
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if (string.IsNullOrEmpty(password))
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return false;
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// 长度6-16位
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if (password.Length < 6 || password.Length > 16)
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return false;
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// 必须包含数字
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bool hasDigit = Regex.IsMatch(password, @"\d");
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// 必须包含字母
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bool hasLetter = Regex.IsMatch(password, @"[a-zA-Z]");
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// 必须包含特殊字符（支持半角和全角符号）
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bool hasSpecial = Regex.IsMatch(password, @"[!@#$%^&*()_+\-=\[\]{};':""\\|,.<>\/?]|\p{P}");
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return hasDigit && hasLetter && hasSpecial;
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}
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/// <summary>
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/// 检查是否包含连续或重复的三个及以上数字或字母（大小写不敏感）
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/// </summary>
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public static bool IsValidNoRepeatOrConsecutive(string password)
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{
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for (int i = 0; i <= password.Length - 3; i++)
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{
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char c0 = password[i];
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char c1 = password[i + 1];
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char c2 = password[i + 2];
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if (!char.IsLetterOrDigit(c0) || !char.IsLetterOrDigit(c1) || !char.IsLetterOrDigit(c2))
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continue;
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bool isRepeated;
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if (char.IsLetter(c0))
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isRepeated = char.ToLower(c0) == char.ToLower(c1) && char.ToLower(c1) == char.ToLower(c2);
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else
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isRepeated = c0 == c1 && c1 == c2;
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if (isRepeated) return false;
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if (char.IsDigit(c0) && char.IsDigit(c1) && char.IsDigit(c2))
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{
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if ((c1 - c0 == 1 && c2 - c1 == 1) || (c0 - c1 == 1 && c1 - c2 == 1))
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return false;
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}
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else if (char.IsLetter(c0))
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{
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char l0 = char.ToLower(c0), l1 = char.ToLower(c1), l2 = char.ToLower(c2);
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if ((l1 - l0 == 1 && l2 - l1 == 1) || (l0 - l1 == 1 && l1 - l2 == 1))
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return false;
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}
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}
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return true;
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}
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/// <summary>
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/// 检查密码是否包含邮箱中任意连续两个字符
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/// </summary>
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public static bool IsValidNotEmailPart(string password, string email)
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{
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if (string.IsNullOrEmpty(email)) return true;
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string emailName = email;
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string pwdLower = password.ToLower();
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for (int i = 0; i <= emailName.Length - 2; i++)
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{
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string pair = emailName.Substring(i, 2).ToLower();
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if (pwdLower.Contains(pair))
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return false;
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}
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return true;
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}
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#endregion
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}
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}
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