重置密码时出错

Question

我创建了 MVC 4 应用程序。在该应用程序中，如果用户忘记了密码，我有方法向用户发送电子邮件以重置密码。我正在使用 asp.net 身份成员身份

我在 Web 服务器中部署此项目时收到以下错误消息。它在我的本地主机模式下完美运行。

错误信息

无法编辑此用户 数据保护操作不成功。 这可能是由于没有为 当前线程的用户上下文，当 线程正在模拟。！

这是忘记密码的方法

    [AllowAnonymous]
    public ActionResult ForgotPassword()
    {
        return View();
    }            

    [HttpPost]
    [AllowAnonymous]
    [ValidateAntiForgeryToken]
    public async Task<ActionResult> ForgotPassword(ForgotPasswordViewModel model)
    {

        if (model.UserName == null)
        {
            ModelState.AddModelError("", "Please enter the Username");
        }

        if (model.Email == null)
        {
            ModelState.AddModelError("", "Please enter the Email ID");
        }

        if (model.Email == null & model.UserName == null)
        {
            ModelState.AddModelError("", "Please enter the Username and Email ID");
        }

        if(ModelState.IsValid)
        {
            var username = await UserManager.FindByNameAsync(model.UserName);
            var user = await UserManager.FindByEmailAsync(model.Email);



            if (user != null && username != null)
            {
                ApplicationDbContext context = new ApplicationDbContext();
                UserStore<ApplicationUser> store = new UserStore<ApplicationUser>(context);


                var provider = new Microsoft.Owin.Security.DataProtection.DpapiDataProtectionProvider("MyProject"); 
                UserManager.UserTokenProvider = new Microsoft.AspNet.Identity.Owin.DataProtectorTokenProvider<ApplicationUser>(provider.Create("EmailConfirmation"));
                var code = await UserManager.GenerateEmailConfirmationTokenAsync(user.Id);

                System.Net.Mail.MailMessage m = new System.Net.Mail.MailMessage(
                new System.Net.Mail.MailAddress("sample@email.lk", "My Application"),
                new System.Net.Mail.MailAddress(user.Email));
                m.Subject = "Reset your Password";
                m.IsBodyHtml = true;

                m.Body = string.Format("<img src=\"@@IMAGE@@\" alt=\"\"><BR/><BR/>Hi {0},<BR/><BR/>Please click the below link to reset your password. <BR/><BR/> <a href=\"{1}\" title=\"Reset Password\">Reset Password</a>", user.UserName, Url.Action("ResetPassword", "Account", new { UserId = user.Id, code = code }, Request.Url.Scheme)) + string.Format("<BR/><BR/>Regards,<BR/>We Are <BR/>");



                 string attachmentPath = Server.MapPath("~/Images/hec-logo.png");

                string contentID = Path.GetFileName(attachmentPath).Replace(".", "") + "@zofm";

                Attachment inline = new Attachment(attachmentPath);
                inline.ContentDisposition.Inline = true;
                inline.ContentDisposition.DispositionType = DispositionTypeNames.Inline;
                inline.ContentId = contentID;
                inline.ContentType.MediaType = "image/png";
                inline.ContentType.Name = Path.GetFileName(attachmentPath);
                m.Attachments.Add(inline);

                // replace the tag with the correct content ID
                m.Body = m.Body.Replace("@@IMAGE@@", "cid:" + contentID);

                System.Net.Mail.SmtpClient smtp = new System.Net.Mail.SmtpClient("11.11.11.111");
                smtp.Port = 11;
                smtp.Credentials = new System.Net.NetworkCredential("sample@email.lk", "8888888");
                smtp.EnableSsl = false;
                smtp.Send(m);

                // Don't reveal that the user does not exist or is not confirmed

            }



            return View("ForgotPasswordConfirmation");
        }


      else 
      {
            ModelState.AddModelError("", "The Username or Email ID is invalid.");
      }
        // If we got this far, something failed, redisplay form
        return View(model);
    }

Answer 1

我也遇到了同样的问题，经过多次研究我发现问题出在 IIS 部署中

所以按照这个帖子我可以解决我的问题

The data protection operation was unsuccessful. This may have been caused by not having the user profile loaded for the current thread’s user context, which may be the case when the thread is impersonating.

• 打开 IIS 管理器

• 通过选择您的应用程序，右键单击它，然后选择管理应用程序 -> 高级
  ，找出您的应用程序正在使用的 AppPool 设置。

• 之后，在左上角选择 Applications Pools，然后继续选择您的应用使用的 App Pool。

• 右键单击它，然后选择高级设置，转到流程模型部分并找到“加载用户配置文件”选项并将其设置为
  是的。