IS it possible to get the windows LogOn username of client from web application.
and how does this actually works
Request.ServerVariables("LOGON_USER") also not works in this case as I don't want user to authenicate first
While
Dim ident As WindowsIdentity = WindowsIdentity.GetCurrent()
this is windows specific which gives the user where the code is?
How should I go with this.
found what I want
Context.Request.LogonUserIdentity.Name gives the logon user name..
Related
I have a MVC 5 application which uses OWIN and identity2.0 for authentication.
My application require mixed authentication:
for users not a domain lets say "dom1", they should see a form based page
for users on domain "dom1" they should be logged in via windows authentication.
I want to know how can I get the domain name of user without authentication, at the time when user first hit my Account/Login action.
I have used :
PrincipalContext pcontext = new PrincipalContext(ContextType.Domain);
var domainName = pcontext.ConnectedServer;
and
System.Security.Principal.WindowsIdentity context = System.Security.Principal.WindowsIdentity.GetCurrent();
var domainName = pcontext.Name;
BUT both of these shows domain name of machine where website is deployed and not of the client's domain.
Any help is much appreciated and please correct me if I am doing any blunder.
"without authentication"? You can't. The Windows authentication has to be completed before you can see the user's account.
This is because of how Windows authentication works:
The browser accesses the site anonymously.
IIS returns a 401 response
The browser responds by making the request again with the Windows credentials included
IIS verifies the credentials with the domain controllers
IIS passes the verified Windows credentials to your application.
The only time your application can see anything about the user's account is at step 5 - after the authentication is successfully complete.
The domain can be seen here
Environment.UserDomainName
Gets the network domain name associated with the current user.
Per the MSDN documentation:
The UserDomainName property first attempts to get the domain name component of the Windows account name for the current user. If that attempt fails, this property attempts to get the domain name associated with the user name provided by the UserName property. If that attempt fails because the host computer is not joined to a domain, then the host computer name is returned.
If you're not authenticated, you'll unfortunately see the host computer name. No way around this that I'm aware of.
You can also get the ip of the client's request here
HttpRequest.UserHostAddress
I have a web site from where I fire a mail to members in my offices
This mail have a yes no button.
on click of yes/no button I call a web service, my yes no link looks somewhat like this
yes
Now users i.e. my office staff will login their system open their outlook find this mail and then click it.
After they click, takevotingOpt method in my web service will be called. In this method I want to know, from which user this call has came.
so that I can maintain record in database like xyz user has voted yes/no
say for e.g. their are two members in my organisation A and B
A's windows loginId is "AaLoginId" and
B's windows loginId is "BbLoginId"
both A and B receives the mail with the above mentioned link in it. when A click the yes/no link my web method should give me A's login Id i.e "AaLoginId". After I get this I make an entry in my database as A has voted yes.
I have tried below thing in my web service to get the user name but of no use please help.
tried this things to get windows login username.
//string userName = System.Security.Principal.WindowsIdentity.GetCurrent().Name;
//Uri uri = new Uri("http://tempuri.org/");
//ICredentials credentials = CredentialCache.DefaultCredentials;
//NetworkCredential credential = credentials.GetCredential(uri, "Ntlm");
////userName = credential.UserName;
//userName = User.Identity.Name;
//userName= System.Threading.Thread.CurrentPrincipal.Identity.Name;
//userName = Context.Request.ServerVariables["LOGON_USER"].ToString();
//userName = HttpContext.Current.User.Identity.Name.ToString();
I went to authentication in my inetmgr and enabled windows authentication for my hosted web service now it does what I want (userName = User.Identity.Name;) but it opens a browser window and ask for windows userid and password I dont want that It should pick up without login window.
Please help or suggest any other approach to achieve this.
You need to turn on windows authentication for the webservice and in IIS, then you should be able to look at Request object to get the user
Use Environment.UserName
Here's the MSDN docs.
http://msdn.microsoft.com/en-us/library/system.environment.username.aspx
Edit - To retrieve all users logged into the current system, check out this Question/Answer - Logoff interactive users in Windows from a service
It shows a way to use WMI and through system DLLs to retrieve a list of logged in users on the current system (which may or may not include service accounts, I haven't tried it myself).
Edit - Using Integrated Security would work for what you're trying to achieve, but can be a bit tricky to setup in large corporations. To get rid of the login prompt, Internet Explorer auto-authenticates to sites in the "Intranet Zone", but does not auto-authenticate to sites in the "Internet Zone". Make sure your web service URL is Intranet based, i.e. http://myserver/ and not Internet based i.e http://myserver.mycorp.com/, unless the user's are within the same domain. If they are not, have the users add "*.mycorp.com" to the Intranet Zone. FireFox has a similar configuration, where specific sites must be "trusted" in order to auto-authenticate.
I have an ASP.net app which is being hosted on a server. I want to get the Clients username from the system and use that name as a title for an XML file im saving on the server.
I have tried various different mathods such as:
Environment.UserName();
WindowsIdentity.GetCurrent();
However all that keeps returning is the NetworkService account name on the server.
Can anyone assist with this.
thank you
Given that your application has authentication set up (either Forms or Windows Authentication), you can get the current user's name via:
HttpContext.Current.User.Identity.Name
Your web application is running (by default) under the NetworkService account. If you want to know the username of the user's NT account you should check out impersonation. With that the application will be running with the credentials of the user.
For public websites this is not possible or shouldn't be done. But internal company applications could do so.
Try this:
HttpContext.Current.User.Identity.Name
This will only work if a user is authenticated by either Forms/Membership authentication or Windows, you can check beforehand:
string userName = "Anonymous";
if (User.Identity.IsAuthenticated)
userName = HttpContext.Current.User.Identity.Name
If your users are authenticated you can use User.Identity.Name
you want the user name of the web client and WindowsIdentity or Env.UserName return you the server side user name, which might be the same as the web client user name only if you have enabled authentication.
I think to solve your issue you should look in the Request headers, in one of those headers there should be a username or useragent string telling you what you need.
I have a winform app that requires me to check whether a page exists on our Wiki or not. However, that query requires a users NetWork credentials to be passed.
I don't want to hardcode my credentials, and I don't want users to have to manipulate the App.config everytime someone else uses it (there's also the issue of them having to expose their password in the App.Config). Is there a way I can get the current user's NT credentials? I don't need to see it (that would be an obvious security issue), I just need it for the following line of code:
HttpWebRequest WikiPageRequest;
WikiPageRequest.Credentials = new NetworkCredential("user", "pass", "dom");
//maybe do something like this
WikiPageRequest.Credentials = GetNTCredentials();
Can you try using CredentialCache.DefaultCredential? That seems to get you the current logged in users credential.
If by "wiki", you mean a deployment of MediaWiki, then sadly you need user id and password.
Unfortunately you cannot get it from Windows, because, even the Windows OS itself does not know the password. It just stores a hash of the password.
By the way, why dont you ask for user id/password for wiki each time the user starts the app?
How do I get an ICredential object within my web application?
I use Windows Authentication
I tried using the following code:
WindowsImpersonationContext securityContext =
Request.LogonUserIdentity.Impersonate();
After the last line of code both: CredentialCache.DefaultCredentials and CredentialCache.DefaultNetworkCredentials are still empty.
I know that the identity is right because the following property shows the right domain\user account I'm using:
Request.LogonUserIdentity.Name => "domain\user"
This is the authentication type of that object:
Request.LogonUserIdentity.AuthenticationType => "NTLM"
In order to get an ICredential implementation of the user, you first need to get a hold of the WindowsIdentity for the user (e.g. through Page.User.Identity). With the WindowsIdentity object you can impersonate the user. After successful impersonation you can get a hold of the credentials for the user through CredentialCache.DefaultCredentials.
The question now is, what do you want to do with the credentials? If you want to use those credentials to access some ressource on a different server you'd probably have to have Keberos delegation enabled to allow the server hop. I wouldn't know how to do that :-)
Where do you need it for?
You can retrieve the username from System.Threading.Thread.CurrentPrincipal.Identity