如何调试 DNN 中的视图状态验证错误？

Question

我有一个继承的 DotNetNuke 应用程序，我正在尝试对现有模块进行一些更新。它恰好是一个自定义登录模块。

我正在尝试集成 2 因素身份验证。登录本身可以工作，但是当我想在此之后显示 2 因素字段时，我在提交 2 因素代码时收到 503 错误。

我尝试在global.asax 中添加Application_Error 事件，但从未成功。我还尝试覆盖登录控件的OnError 事件，但也从未命中。

OnInit 总是在产生 503 的回发期间被命中，而不是 OnLoad。最奇怪的是，如果我越过OnInit 的每一行，直到我点击OnInit 之外的第一件事，然后单击继续，一切正常。如果我只是从OnInit 开头的断点单击 Continue，几乎每次都会在到达OnLoad 之前失败并返回 503。

这指向某种异步错误，但我无法想象它可能是什么。

如果有任何区别，面板控件会显示和隐藏登录与 2 因素字段。

返回 503 错误的消息是“当前不存在此安装的站点。”

非常感谢有关如何缩小导致 503 的原因的任何建议。

更新

我错过了视图状态验证异常的日志条目。

Validation of viewstate MAC failed. If this application is hosted by a Web
Farm or cluster, ensure that configuration specifies the same validationKey 
and validation algorithm. AutoGenerate cannot be used in a cluster. 
See http://go.microsoft.com/fwlink/?LinkID=314055 for more information.

我设置了机器键值，但我仍然得到同样的错误。更不用说它也没有解释为什么只有在我不通过OnInit时才会发生这种情况@

有什么想法吗？

Answer 1

事实证明，我的问题源于在尝试验证 2 因素身份验证之前调用 UserController.UserLogin()。

现在我在 2 因素验证后调用它，一切都按预期工作，甚至始终如一：o)

代码

这是更改的示例。

这是行不通的：

private void ValidateUser(UserInfo objUser, bool ignoreExpiring)
{
    UserValidStatus validStatus = UserValidStatus.VALID;
    string strMessage = Null.NullString;
    DateTime expiryDate = Null.NullDate;
    bool okToShowPanel = true;

    validStatus = UserController.ValidateUser(objUser, PortalId, ignoreExpiring);

    if (PasswordConfig.PasswordExpiry > 0)
    {
        expiryDate = objUser.Membership.LastPasswordChangeDate.AddDays(PasswordConfig.PasswordExpiry);
    }
    UserId = objUser.UserID;

    //Check if the User has valid Password/Profile
    switch (validStatus)
    {
        case UserValidStatus.VALID:
            //check if the user is an admin/host and validate their IP
            if (Host.EnableIPChecking)
            {
                bool isAdminUser = objUser.IsSuperUser || PortalSettings.UserInfo.IsInRole(PortalSettings.AdministratorRoleName); ;
                if (isAdminUser)
                {
                    if (IPFilterController.Instance.IsIPBanned(Request.UserHostAddress))
                    {
                        new PortalSecurity().SignOut();
                        AddModuleMessage("IPAddressBanned", ModuleMessage.ModuleMessageType.RedError, true);
                        okToShowPanel = false;
                        break;
                    }
                }
            }

            //Set the Page Culture(Language) based on the Users Preferred Locale
            if ((objUser.Profile != null) && (objUser.Profile.PreferredLocale != null))
            {
                Localization.SetLanguage(objUser.Profile.PreferredLocale);
            }
            else
            {
                Localization.SetLanguage(PortalSettings.DefaultLanguage);
            }

            //Set the Authentication Type used 
            AuthenticationController.SetAuthenticationType(AuthenticationType);

            var userRequestIPAddress = new UserRequestIPAddressController();
            //Complete Login
            UserController.UserLogin(PortalId, objUser, PortalSettings.PortalName, userRequestIPAddress.GetUserRequestIPAddress(new HttpRequestWrapper(Request)), RememberMe);

            var twoFactorAuthStatus = GetTwoFactorAuthStatus(objUser);

            switch (twoFactorAuthStatus)
            {
                case TwoFactorAuthStatus.Error:
                    return;
                case TwoFactorAuthStatus.NotEnabled:
                    RedirectUser(objUser);
                    break;
                case TwoFactorAuthStatus.SetupNeeded:
                    PageNo = googleAuthSetupPageNo;
                    break;
                case TwoFactorAuthStatus.VerificationNeeded:
                    PageNo = verifyGoogleAuthPageNo;
                    break;
            }
            break;
        case UserValidStatus.PASSWORDEXPIRED:
            strMessage = string.Format(Localization.GetString("PasswordExpired", LocalResourceFile), expiryDate.ToLongDateString());
            AddLocalizedModuleMessage(strMessage, ModuleMessage.ModuleMessageType.YellowWarning, true);
            PageNo = passwordPageNo;
            pnlProceed.Visible = false;
            break;
        case UserValidStatus.PASSWORDEXPIRING:
            strMessage = string.Format(Localization.GetString("PasswordExpiring", LocalResourceFile), expiryDate.ToLongDateString());
            AddLocalizedModuleMessage(strMessage, ModuleMessage.ModuleMessageType.YellowWarning, true);
            PageNo = passwordPageNo;
            pnlProceed.Visible = true;
            break;
        case UserValidStatus.UPDATEPASSWORD:
            AddModuleMessage("PasswordUpdate", ModuleMessage.ModuleMessageType.YellowWarning, true);
            PageNo = passwordPageNo;
            pnlProceed.Visible = false;
            break;
        case UserValidStatus.UPDATEPROFILE:
            //Save UserID in ViewState so that can update profile later.
            UserId = objUser.UserID;

            //When the user need update its profile to complete login, we need clear the login status because if the login is from
            //3rd party login provider, it may call UserController.UserLogin because they doesn't check this situation.
            new PortalSecurity().SignOut();
            //Admin has forced profile update
            AddModuleMessage("ProfileUpdate", ModuleMessage.ModuleMessageType.YellowWarning, true);
            PageNo = profilePageNo;
            break;
    }
    if (okToShowPanel) ShowPanel();
}

这是有效的：

private void ValidateUser(UserInfo objUser, bool ignoreExpiring)
{
    UserValidStatus validStatus = UserValidStatus.VALID;
    string strMessage = Null.NullString;
    DateTime expiryDate = Null.NullDate;
    bool okToShowPanel = true;

    validStatus = UserController.ValidateUser(objUser, PortalId, ignoreExpiring);

    if (PasswordConfig.PasswordExpiry > 0)
    {
        expiryDate = objUser.Membership.LastPasswordChangeDate.AddDays(PasswordConfig.PasswordExpiry);
    }
    UserId = objUser.UserID;

    //Check if the User has valid Password/Profile
    switch (validStatus)
    {
        case UserValidStatus.VALID:
            //check if the user is an admin/host and validate their IP
            if (Host.EnableIPChecking)
            {
                bool isAdminUser = objUser.IsSuperUser || PortalSettings.UserInfo.IsInRole(PortalSettings.AdministratorRoleName); ;
                if (isAdminUser)
                {
                    if (IPFilterController.Instance.IsIPBanned(Request.UserHostAddress))
                    {
                        new PortalSecurity().SignOut();
                        AddModuleMessage("IPAddressBanned", ModuleMessage.ModuleMessageType.RedError, true);
                        okToShowPanel = false;
                        break;
                    }
                }
            }

            var twoFactorAuthStatus = GetTwoFactorAuthStatus(objUser);

            switch (twoFactorAuthStatus)
            {
                case TwoFactorAuthStatus.Error:
                    return;
                case TwoFactorAuthStatus.NotEnabled:
                    LoginUser(objUser);
                    break;
                case TwoFactorAuthStatus.SetupNeeded:
                    PageNo = googleAuthSetupPageNo;
                    break;
                case TwoFactorAuthStatus.VerificationNeeded:
                    PageNo = verifyGoogleAuthPageNo;
                    break;
            }
            break;
        case UserValidStatus.PASSWORDEXPIRED:
            strMessage = string.Format(Localization.GetString("PasswordExpired", LocalResourceFile), expiryDate.ToLongDateString());
            AddLocalizedModuleMessage(strMessage, ModuleMessage.ModuleMessageType.YellowWarning, true);
            PageNo = passwordPageNo;
            pnlProceed.Visible = false;
            break;
        case UserValidStatus.PASSWORDEXPIRING:
            strMessage = string.Format(Localization.GetString("PasswordExpiring", LocalResourceFile), expiryDate.ToLongDateString());
            AddLocalizedModuleMessage(strMessage, ModuleMessage.ModuleMessageType.YellowWarning, true);
            PageNo = passwordPageNo;
            pnlProceed.Visible = true;
            break;
        case UserValidStatus.UPDATEPASSWORD:
            AddModuleMessage("PasswordUpdate", ModuleMessage.ModuleMessageType.YellowWarning, true);
            PageNo = passwordPageNo;
            pnlProceed.Visible = false;
            break;
        case UserValidStatus.UPDATEPROFILE:
            //Save UserID in ViewState so that can update profile later.
            UserId = objUser.UserID;

            //When the user need update its profile to complete login, we need clear the login status because if the login is from
            //3rd party login provider, it may call UserController.UserLogin because they doesn't check this situation.
            new PortalSecurity().SignOut();
            //Admin has forced profile update
            AddModuleMessage("ProfileUpdate", ModuleMessage.ModuleMessageType.YellowWarning, true);
            PageNo = profilePageNo;
            break;
    }
    if (okToShowPanel) ShowPanel();
}

我将RedirectUser() 从第一个示例更改为同时执行重定向的LoginUser()。 LoginUser() 在成功的 2 因素身份验证和/或设置之后也会被调用。

一般来说，这是一种更安全的处理方式。我收到的调试反馈只是超级令人沮丧的误导。