Hi Govi,

Can you provide code of login method ? What method make this crash ?

Thanks, Alex

I have the same issue after unstalling Umbraco 7.3

We have been using AD membership provider for backoffice user authentication, with the following setup (as specified in https://our.umbraco.org/wiki/how-tos/membership-providers/active-directory-membership-provider):

In umbracoSettings.config

  <providers>
<users>
  <DefaultBackofficeProvider>ADUsersMembershipProvider</DefaultBackofficeProvider>
</users>

In web.config:

    <membership defaultProvider="UmbracoMembershipProvider" userIsOnlineTimeWindow="15">
  <providers>
    <clear />
    <add name="UmbracoMembershipProvider" type="Umbraco.Web.Security.Providers.MembersMembershipProvider, Umbraco" minRequiredNonalphanumericCharacters="0" minRequiredPasswordLength="4" useLegacyEncoding="true" enablePasswordRetrieval="false" enablePasswordReset="true" requiresQuestionAndAnswer="false" defaultMemberTypeAlias="Member" passwordFormat="Hashed" />
    <add name="UsersMembershipProvider" type="Umbraco.Web.Security.Providers.UsersMembershipProvider, Umbraco" minRequiredNonalphanumericCharacters="0" minRequiredPasswordLength="4" useLegacyEncoding="true" enablePasswordRetrieval="false" enablePasswordReset="true" requiresQuestionAndAnswer="false" passwordFormat="Hashed" />
    <add name="ADUsersMembershipProvider" type="System.Web.Security.ActiveDirectoryMembershipProvider, System.Web, Version=2.0.0.0,               Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" connectionStringName="ADMembership" attributeMapUsername="sAMAccountName" />
  </providers>
</membership>

Now I am getting the same error "Unable to cast object of type 'System.Web.Security.ActiveDirectoryMembershipProvider' to type 'Umbraco.Core.Security.UmbracoMembershipProviderBase'.".

Please advise how to implement AD membership provider for backoffice in 7.3?

PS. I was trying to register my own provider inherited from UmbracoMembershipProviderBase. However Umbraco does not seem to use it during the backoffice login process. When running in the debugger I can see the breakpoint hit on fields declaration, but it never hits a breakpoint in ValidateUser().

Hello Gleb -
Initially I thought I was getting this exception in the new versions of Umbraco (7.2, 7.3) but, I could replicate the same casting exception error in older versions as well. I was wondering how it was working at all for you earlier, as Umbraco.Core membershipprovider is not inherting from System.Web membershipprovider.

I am having the same issue as well. We're using AD authentication and I recieved this error as soon as I upgrade from 7.2 to 7.3.

Unable to cast object of type 'System.Web.Security.ActiveDirectoryMembershipProvider' to type 'Umbraco.Core.Security.UmbracoMembershipProviderBase'.

Anyone have any ideas? Thanks.

Terence

Had same issue when upgraded from 7.28 to 7.3 (actually had lot ... - it's all the web.config - I guess because the move to MVC 5) Anyway, I replaced these lines at the web.config (copied these lines from the new web.config that comes with 7.3 to my current web.config - only these lines) and now it works:

<!-- Membership Provider -->
<membership defaultProvider="UmbracoMembershipProvider" userIsOnlineTimeWindow="15">
  <providers>
    <clear />
    <add name="UmbracoMembershipProvider" type="Umbraco.Web.Security.Providers.MembersMembershipProvider, Umbraco" minRequiredNonalphanumericCharacters="0" minRequiredPasswordLength="8" useLegacyEncoding="true" enablePasswordRetrieval="false" enablePasswordReset="true" requiresQuestionAndAnswer="false" defaultMemberTypeAlias="Member" passwordFormat="Hashed" />
    <add name="UsersMembershipProvider" type="Umbraco.Web.Security.Providers.UsersMembershipProvider, Umbraco" minRequiredNonalphanumericCharacters="0" minRequiredPasswordLength="8" useLegacyEncoding="true" enablePasswordRetrieval="false" enablePasswordReset="true" requiresQuestionAndAnswer="false" passwordFormat="Hashed" />
  </providers>
</membership>
<!-- Role Provider -->
<roleManager enabled="true" defaultProvider="UmbracoRoleProvider">
  <providers>
    <clear />
    <add name="UmbracoRoleProvider" type="Umbraco.Web.Security.Providers.MembersRoleProvider" />
  </providers>
</roleManager>

In general - just follow the error messages and replaced the "problematic" lined at the web.config (or add the new which added if need). Honestly it's really annoying all this problems every time that I upgrade. In wordpress it's much more smooth ... In a mature cms these problems not support to happened ... - anyway, I still love Umbraco ...

Any updates for this?

This just came out: https://our.umbraco.org/projects/backoffice-extensions/umbraco-back-office-active-directory-aspnet-provider/

I tried this and I'm still getting this error (Umbraco 7.3.3): Unable to cast object of type 'AdAspNetProvider.ActiveDirectoryMembershipProvider' to type 'Umbraco.Core.Security.UmbracoMembershipProviderBase'.

Has anyone successfully setup AD backoffice authentication with Umbraco 7?

We have this problem in 7.3 version but, NOT in the earlier versions. Hence, we are using 7.2.8 with Active Directory settings in web.config and it's working fine.

Having the same issue after updating from 7.2.8 to 7.3.7, as we use Active Directory for users to login to the backoffice UI. Any updates to the issue are very welcome, otherwise we'll have to stick with 7.2.8 awhile yet.

See https://github.com/Bitmapped/UmbBackofficeMembershipProvider for code and instructions on how to fix this issue.

Any update to this issue? having the same issue now.

I've checked out https://github.com/Bitmapped/UmbBackofficeMembershipProvider

But the error is still occuring

Thanks

Hi Brian,

From your github, it didn't mention that i need to switch on the UmbracoSettings.config.

Do i still need to add the below in? I've added the below in and I've got the casting error.

<providers>
        <users>
            <!-- if you wish to use your own membershipprovider for authenticating to the Umbraco back office -->
            <!-- specify it here (remember to add it to the web.config as well) -->
            <!-- This is the default Umbraco Membership Provider (UsersMembershipProvider) -->              
            <DefaultBackofficeProvider>BackofficeMembershipProvider</DefaultBackofficeProvider>
        </users>
    </providers>

Regard the parts that you mentioned below.

In versions 7.3.0 and newer, an administrator must create an Umbraco user account (use the same username) first before an Active Directory user can login.

So for Eg i've got an AD account with the name of Tester88, so I need to login using the UmbracoDefaultOwinStartup like below.

<add key="owin:appStartup" value="UmbracoDefaultOwinStartup" />

Then create an Umbraco Admin user with the username of Tester88 (should i leave the password untouch here?) and then switch it back to

<add key="owin:appStartup" value="BackofficeMembershipProviderCustomOwinStartup" />

And try to login using my AD user of Tester88 which i've created earlier?

Thanks

Thanks Brian, Let me try it out

Good news. Working sweet like what you said Brian. Thanks for the help ;)

Just thought i'd share my experience here, hopefully it helps someone. I've used brian's sourcecode on github rather than using the nuget file as I wanted to step through the code and debug the error. It turned out I had an existing user with the same email address from another test i'd been doing.

I changed the users email through sql server management studio and then it worked!

Tip: Making your account an Umbraco Admin account:

1. Login with your windows domain account, this allows the user manager to setup your account in the database.
2. Open sql server management studio and add a mapping for your user to the admin account in the [umbracoUser2UserGroup] table (admin was group id 1 on my install).
3. Logout and in again and you're good to go with your admin account too.

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