在mvc中限制常見密碼，如qwerty，123456789

Question

我希望正則表達式在模型中有辦法做到這一點？

我讀了這個答案安東尼Pegram在以下問題這樣的邏輯，而在MVC驗證 ASP.net PasswordStrengthRegularExpression to prevent common passwords like "11111" or "123456"

Answer 1

那麼最簡單的解決辦法是讓你的模型幫助從IValidatableObject繼承和實現validate方法在模型中，這樣的事情：

public IEnumerable<ValidationResult> Validate(ValidationContext validationContext) 
{ 
    if (string.IsNullOrWhiteSpace(Password) == false) 
    { 
     var passwordValid = true; 
     for (int i = 2; i < Password.Length; i++) 
     { 
      if (Password[i] == Password[i - 1] - 1 && Password[i - 1] == Password[i - 2] - 1) 
      { 
       passwordValid = false; 
      } 
      else if (Password[i] == Password[i - 1] + 1 && Password[i - 1] == Password[i - 2] + 1) 
      { 
       passwordValid = false; 
      } 
      else if (Password[i] == Password[i - 1] && Password[i - 1] == Password[i - 2]) 
      { 
       passwordValid = false; 
      } 
     } 

     if (!passwordValid) 
     { 
      yield return new ValidationResult("Your Validation Message Here!", new []{ "Password" }); 
     } 
    } 
} 

另一種選擇是用類似的邏輯添加擴展方法爲你的模型，然後檢查控制器的結果：

if (!model.IsValidPassword()) 
{ 
    ModelState.AddModelError("", "Your Validation Message Here!"); 
    return View(model); 
} 

Answer 2

[RegularExpression(@"(?=^.{8,30}$)(?=.*\d)(?=.*[a-z])(?=.*[A-Z])(?=.*[!@#$%^&*()_+}{"":;'?/>.<,]).*$",ErrorMessage="Password must have at least 1 small-case letter At least 1 Capital letter At least 1 digit At least 1 special character Length should be between 8-30 characters")] 
public string NewPassword { get; set; } 

這將是強密碼的代碼我怎樣才能聯繫起來。請標記爲答案，如果從這個職位