need clear example of threading + impersonation

[jyjohnson]

My asp.net application needs to allow the user (via basic authentication) to
execute a long running process (new thread) that writes files out to a share
on another server.

This works if I just use impersonation without creating a new thread. I'm
using XP Pro + IIS 5. I think I have access to a Win 2003 server if that
makes things easier.

Thanks....

 

[Dominick Baier [DevelopMentor]]

Hello jyjohnson,

i assume that you first impersonate and start the thread afterwards....

impersonation tokens are not copied to new threads in .net 1.1 (they will
in 2.0)

do it like this

start the thread
impersonate the user on the new thread

something like (only compiled in the newsreader


Worker worker = new Worker();
worker.user = Page.User;

Thread t = new Thread(new ThreadStart(worker.DoWork);

class Worker
{
public WindowsPrincipal user;

public void DoWork()
{
WindowsImpersonationContext ctx;
try
{
user.Impersonate();
}
finally
{
ctx.Undo();
}
}
}

 

[jyjohnson]

I think I've tried that.... I've tried many code snips, etc, ! I understand
the problem (i.e., new threads use the aspnet account identity, not the
impersonated identity)...

I get an error on this line ---> user.Impersonate 'not a member of
WindowsPrinciple

Thanks!