Question

默认情况下，ASP.NET 5中提供的默认身份提供程序具有非常严格的密码规则，需要小写字符，大写字符，非字母数字字符和数字。我正在寻找一种方法来改变提供商的密码要求。

以前在ASP.NET 4中，可以通过Web.config XML文件配置提供程序，如previously answered。但是，ASP.NET 5使用基于新代码的配置模式，并且不清楚如何配置身份。

如何更改应用程序的密码要求？

Answer 1

我实际上最终搞清楚这一点，事实证明你需要为AddDefaultIdentity提供一个合适的lambda表达式来配置它提供的IdentityOptions。这是在Startup类中的ConfigureServices方法内完成的，如下所示：

public class Startup {
    public void ConfigureServices(IServiceCollection services) {

        // Add Identity services to the services container.
        services.AddDefaultIdentity<ApplicationIdentityDbContext, ApplicationUser, IdentityRole>(Configuration,
            o => {
                o.Password.RequireDigit = false;
                o.Password.RequireLowercase = false;
                o.Password.RequireUppercase = false;
                o.Password.RequireNonLetterOrDigit = false;
                o.Password.RequiredLength = 7;
            });
    }
}

更新2：

以上在框架的beta1版本中都是如此，在最新的 ~~rc1~~ beta5中它稍微改变为：

services.AddIdentity<ApplicationUser, IdentityRole>(o => {
    // configure identity options
    o.Password.RequireDigit = false;
    o.Password.RequireLowercase = false;
    o.Password.RequireUppercase = false;
    o.Password.RequireNonAlphanumeric = false;
    o.Password.RequiredLength = 6;
})
.AddEntityFrameworkStores<ApplicationIdentityDbContext>()
.AddDefaultTokenProviders();

Answer 2

如果您使用Individual User Accounts设置了新的Web项目，请转到：

App_Start -> IdentityConfig.cs

您可以编辑以下默认值：

manager.PasswordValidator = new PasswordValidator
{
    RequiredLength = 6,
    RequireNonLetterOrDigit = true,
    RequireDigit = true,
    RequireLowercase = true,
    RequireUppercase = true,
};

Answer 3

在startup.cs中：

   services.AddIdentity<ApplicationUser, IdentityRole>(x =>
        {
            x.Password.RequiredLength = 6;
            x.Password.RequireUppercase = false;
            x.Password.RequireLowercase = false;
            x.Password.RequireNonAlphanumeric = false;
        }).AddEntityFrameworkStores<ApplicationDbContext>().AddDefaultTokenProviders();

Answer 4

我想要做的是自定义密码规则，使其包含至少2个以下组中的字符：小写，大写，数字和特殊符号。

通过更改PasswordValidator选项，我无法做到这一点：

manager.PasswordValidator = new PasswordValidator
{
    RequiredLength = 6,
    RequireNonLetterOrDigit = false,
    RequireDigit = false,
    RequireLowercase = false,
    RequireUppercase = false,
 };

因此我通过扩展IIdentityValidator来创建自定义验证器......

首先，在Extensions文件夹中创建一个新文件CustomPasswordValidator.cs：

public class CustomPasswordValidator : IIdentityValidator<string>
{
    public int RequiredLength { get; set; }
    public CustomPasswordValidator(int length) {
        RequiredLength = length;
    }

    /* 
     * logic to validate password: I am using regex to count how many 
     * types of characters exists in the password
     */
    public Task<IdentityResult> ValidateAsync(string password) {
        if (String.IsNullOrEmpty(password) || password.Length < RequiredLength)
        {
            return Task.FromResult(IdentityResult.Failed(
                String.Format("Password should be at least {0} characters", RequiredLength)));
        }

        int counter = 0;
        List<string> patterns = new List<string>();
        patterns.Add(@"[a-z]");                                          // lowercase
        patterns.Add(@"[A-Z]");                                          // uppercase
        patterns.Add(@"[0-9]");                                          // digits
        // don't forget to include white space in special symbols
        patterns.Add(@"[!@#$%^&*\(\)_\+\-\={}<>,\.\|""'~`:;\\?\/\[\] ]"); // special symbols

        // count type of different chars in password
        foreach (string p in patterns)
        {
            if (Regex.IsMatch(password, p))
            {
                counter++;
            }
        }
        if (counter < 2)
        {
            return Task.FromResult(IdentityResult.Failed(
                "Please use characters from at least two of these groups: lowercase, uppercase, digits, special symbols"));
        }
        return Task.FromResult(IdentityResult.Success);
    }
}

然后转到IdentityConfig.cs，并在Create method：

中初始化它

manager.PasswordValidator = new CustomPasswordValidator(6 /*min length*/);
        /*
        // You don't need this anymore
        manager.PasswordValidator = new PasswordValidator
        {
            RequiredLength = 6,
            RequireNonLetterOrDigit = true,
            RequireDigit = true,
            RequireLowercase = true,
            RequireUppercase = true,
        };
        */

如何在ASP.NET 5 MVC 6（vNext）中定义Identity的密码规则？

4 个答案: