[R] Configuring Proxy: Proxy Authentication Required with --internet2

[Duncan Murdoch]

On 30/08/2011 3:48 AM, behave wrote:
> That was my first guess as well, but unfortunately this doesn't solve the
> problem.
>
> I is remarkably that IE requires authentification for every new instance I
> open (even if another instance is already open)...
>
> Any other hints?

You can read about how WinINet can be made to  handle authentication on 
this page:

http://msdn.microsoft.com/en-us/library/aa384220%28v=vs.85%29.aspx

(If that URL doesn't work, search for WinINet on microsoft.com, and 
navigate to "Handling Authentication".)

To do any of this would require changes to the file 
https://svn.r-project.org/R/trunk/src/modules/internet/internet.c.  The 
USE_WININET_ASYNC macro is *not* defined, so ignore code in those 
ifdefs.  You could try changing the error handling code around line 791.

Since I don't use a proxy I can't test any of this and won't attempt it 
myself, but if you are able to make the changes and test them and they 
are reasonable looking, I'll consider incorporating them.

Duncan Murdoch