使用自定义成员资格和角色提供程序在MVC中实现IPrincipal和IIdentity

public class CustomIdentity : IIdentity
{
    public string Name { get; set; }
    public string AuthenticationType { get; set; }
    public bool IsAuthenticated { get; set; }
}

public class CustomPrincipal : IPrincipal
{
    public IIdentity Identity { get; set; }

    public bool IsInRole(string role)
    {
        // 在这里实现自定义的角色检查逻辑
    }
}

public class CustomMembershipProvider : MembershipProvider
{
    public override bool ValidateUser(string username, string password)
    {
        // 在这里实现自定义的用户验证逻辑
    }

    public override string ApplicationName { get; set; }
    public override bool EnablePasswordReset { get; }
    public override bool EnablePasswordRetrieval { get; }
    public override bool RequiresQuestionAndAnswer { get; }
    public override bool RequiresUniqueEmail { get; }
    public override int MaxInvalidPasswordAttempts { get; }
    public override int PasswordAttemptWindow { get; }
    public override MembershipPasswordFormat PasswordFormat { get; }
    public override int MinRequiredPasswordLength { get; }
    public override int MinRequiredNonAlphanumericCharacters { get; }
    public override string PasswordStrengthRegularExpression { get; }
}

public class CustomRoleProvider : RoleProvider
{
    public override bool IsUserInRole(string username, string roleName)
    {
        // 在这里实现自定义的角色检查逻辑
    }

    public override string[] GetRolesForUser(string username)
    {
        // 在这里实现自定义的角色获取逻辑
    }

    public override string ApplicationName { get; set; }
}

<membership defaultProvider="CustomMembershipProvider">
  <providers>
   <clear/>
    <add name="CustomMembershipProvider" type="YourNamespace.CustomMembershipProvider" />
  </providers>
</membership>

<roleManager defaultProvider="CustomRoleProvider">
  <providers>
   <clear/>
    <add name="CustomRoleProvider" type="YourNamespace.CustomRoleProvider" />
  </providers>
</roleManager>