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Asp.Net getting users UPN from Active Directory

Posted on 2013-02-06
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Last Modified: 2013-11-18
Hi..
Running a .net web app and am truing to get the currently logged in users User Principal Name from AD.

I'm using the System.DirectoryServices.AccountManagement.UserPrincipal.Current property to achieve this...

I understand that I need to run the application as a user that has read access to AD, but am not sure how my web.conf file should be set up to achieve this..

I currently have...

<identity impersonate="true"
                   userName="domain\someuser"
                   password="somepass"/>

... in my web.conf and the nominated user has read access to AD, the problem is that it always reports this users UPN and not the user that's actually running the application...

I know this is a bit obvious, but I'm struggling to get the web application to run in the context as the actual user who is calling the application..

If I remove the userName/password from that tag, i get the following error...
"System.DirectoryServices.DirectoryServicesCOMException"

Can someone de-mystify this for me please??

Thanks in advance..
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Question by:jcm4101
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3 Comments
 
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Expert Comment

by:Rimvis
ID: 38862975
Hi jcm4101,

Do you have authentication mode set to Windows?

Check "Configuring Windows Authentication" section:
http://msdn.microsoft.com/en-us/library/ff647405.aspx
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Author Comment

by:jcm4101
ID: 38862996
HI, thanks for your reply...

I can confirm that the relavent bits of my web.conf now look like this..
<system.web>
        <authentication mode="Windows"/>
        <identity impersonate="true"/>
...
...
...

</system.web>

This results in the exception below being thrown...
System.DirectoryServices.DirectoryServicesCOMException: An operations error occurred.

Thanks again

D
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Accepted Solution

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Rimvis earned 500 total points
ID: 38863061
Have you checked that anonymous access is disabled in IIS configuration?


What are you trying to do when you get an error? Can you show the code?
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