Security :: Application Within A Sharepoint Web Part Using Impersonation But Need Windows Identity
May 12, 2010
I currently have a client with a SharePoint site that wants to incorporate an (already written) ASP.NET application within a webpart in the SharePoint site. The ASP.net application currently uses an IIS impersonation account to connect to the SQL database.
Some added functionality the client is requesting would require me to grab the user's windows login identity to use the SharePoint UserProfileWebService to query the PropertyPages for that specific user. Because the (already written) ASP.NET application uses impersonation, when I grab the WindowsIdentity.GetCurrent().Name, I get the impersonation account and not the actual user's account.
Is there a way to keep the current setup (impersonation account on IIS to connect to SQL) and still grab the logged in user's credentials? Or would a better way about this be to change IIS to consume the Windows Identity of the logged in user and encrypt the connection string in the web.config?
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Aug 9, 2010
My website security is configured with "Windows Integrated Security" only (anonymous is disabled).
I also want to set a specific account to run the w3wp.exe process using the
Application Pool Identity to a domain account.
Running directly from the server works without any problem but from remote computers I always get the authenticaion window then the 401.1 error (after 3 attempts).
It seems that its the combination of "Windows Integrated Security" along with the "Application Pool Identity" that causes the problem. When I disable one of the two it works properly.
My server is Windows Server 2003 R2, running IIS 6.0.
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Apr 13, 2010
I noticed impersonation is turned on by default in MOSS web configs. I tried disabling it but the web app returns an error. So my question, is it possible to disable impersonation in MOSS? If it is possible are there any special considerations I should be aware of?
If you're interested in why I need to do this...I need to have a custom web part (developed with SmartPart) talk to a separate SQL server using the application pool rather than the current user (Kerberos is enabled). If I set the authentication mode to NTLM I get NTAuthority/ANonymous login errors from my SQL connection. If I turn Kerberos on, the currently logged in user's credentials are passed. If I hard code the user id and password in the connection string it seems to ignore it and default to whichever security model is in place (NTLM or Kerberos).
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Jun 30, 2010
I have an ASP.NET site that uses impersonation. As the impersonated user I use a domain user (not a local machine user). The site is hosted in IIS 6 running on Windows 2003. In IIS 6 for directory security windows authentication is ticked.The site has been running now for about 6 months without any problem. However since about a week back the site has started spuring up really wierd errors. For one, users cannot access the site anymore. When accessing a windows authentication dialog box appears having the user to enter the credentials. However these credentials are not accepted and the standard unauthorized page is displayed
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Feb 17, 2010
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Jul 30, 2010
I want to know if this kind of authentication is possible.
We have an Active Directory account and that account we are using to log in to windows. I have a simple system that needs authentication using the IIS log in box (i dont know what do you call this but what I know is it only comes out when Anonymous user is unchecked in the IIS configuration.) Now, I want this box to appear before my page and the user will be authenticated and be compare to the user who logged in to the windows. If the user who have been authenticated is the same as the user who logged in to the windwos then we will let him in if not he must be denied in accessing the page.
The first problem I have in my mind is how to code it in asp.net to make an authentication when he will try to access my page.
Second is, let us say we have succeeded to show the authentication box, how can I get the username from the log in box and compare it to the user who logged on in windows. Of course we can get the user id of the logged in user from the windows using User.Identity.Name but how about the username from the log in box.
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Jun 14, 2010
In my Web.config of my ASP.NET app I have set below:
<authentication
mode="Windows"/>
<identity
impersonate="true"
/>
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Jan 23, 2011
I have an requirement to implement single sign on solution using SAML 2. I had a look at a tirdparty toolkit in componentspace, but I would prefer some microsoft components.
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Jan 4, 2011
I have this web application where I need the currently logged in windows user Identity. I server on which I deployed this application does not support virtual directories. And I am not sure if that server is configured for "Integrated Windows Authentication."
I tried using:
System.Security.Principal.WindowsIdentity.GetCurrent().Name;
Request.ServerVariables["AUTH_USER"];
HttpContext.Current.User.Identity.Name;
All these work and retrieve the appropriate currently logged in windows username when the application isn't deployed. But when I deploy it on this particular server, these methods do not give me nothing.
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Feb 1, 2010
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Feb 21, 2011
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Jun 6, 2010
I wasnt sure where this question best belongs, in the end I figured this was the best place...
Say I have a utility dll that i might use in either a windows console application or in an asp.net web application - how can I programatically find whether it is running on web or windows, from within the dll?
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Nov 1, 2010
I have a web application with a login form. A user enters a user name and password. If they exist in the database the user is authenticated using these two lines:
[Code]....
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[Code]....
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[Code]....
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Mar 14, 2011
I've created a quiz web part in SharePoint 2007, but am stuck on one permission. It needs to write the quiz score to a list, which it's throwing an error now when trying. I'm under the assumption that if the web part has the appropriate permission level, the user's permissions (the quiz taker) don't matter. Is there a particular permission that should allow the webpart to write to a list? Specifically:
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Jul 29, 2010
I have a web part that is deployed in a MOSS 2007 application. The web part has a text box for entry of an ID number and a button that fills a dataset from the db based on the supplied ID and binds this to a details view. The details view is a private variable declared at the top of my web part class, the details view is then instantiated and various properties set along with the event handlers in the CreateChildControls() Sub.
[Code]....
The details view is then rendered in the RenderContents() sub.
[Code]....
After checking the user inputted ID number for malicious chars I fill a data set.
[Code]....
The problem is that when I click the auto generated Edit link nothing happens and if I then click it for a second time the editable text boxes appear but have no data in them and my data key appears to have been overwritten. I have also tried entering new values into the text boxes and clicking the Insert link and then looping through the NewValues collection inside the ItemUpdating event but this displays nothing!
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i downloaded Microsoft Report Viewer 2010 Redistributable Package and used in asp.net page and it works fine without post back all the page BUT, when i created costume web part including report viewer , default page shows javascript error and the report papers as disabled , and when i click viwer the whole page getting post back
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Apr 17, 2010
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Oct 4, 2010
I have an app that uses impersonation to gain access to a database (on server separate from IIS). The app connects to the database using a trusted connection and seems to be working just fine. However, we get these logon failure events in the security event viewer:
[Code]....
It must have something to do with impersonation because the login failure is for the domain account which my app is impersonating under. But again, the app is working fine so I'm having a hard time figuring out how to stop these logon failures.
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