R help - Sep 2001 - update.packages with proxy?

This reminds me of a question I've never asked yet: Is there a trick to make
this work when a username authentication is required for using the proxy?
I need a user name and a password to connect to the Internet, and so I
get:
> version
         _              
platform i386-pc-mingw32
arch     x86            
os       Win32          
system   x86, Win32     
status                  
major    1              
minor    3.0            
year     2001           
month    06             
day      22             
language R              
> CRAN.packages()
trying URL `http://cran.r-project.org/bin/windows/contrib/PACKAGES'
Error in download.file(url = paste(contriburl, "PACKAGES", sep =
"/"),  :
        cannot open: HTTP status was `407 Proxy authorization
required'
> 
I understand why this does not work, but don't know what I can do about it.

Heinrich.

> ----------
> Von: 	Prof Brian Ripley[SMTP:ripley at stats.ox.ac.uk]
> Gesendet: 	Samstag, 01. September 2001 10:18
> An: 	Philippe Grosjean
> Cc: 	Kenneth Cabrera; R-help at stat.math.ethz.ch
> Betreff: 	RE: [R] update.packages with proxy?
> 
> On Sat, 1 Sep 2001, Philippe Grosjean wrote:
> 
> > You don't tell which system you are running on. But if it is
Windows, it
> is
> > possible to use update.package() through a proxy with the following
> > modifications:
> >
> > - Go to the subdirectory 'modules'. You will find there
'internet.dll'
> and
> > 'internet2.dll'.
> > - Rename 'internet.dll' whatever you want. For instance
'internet.old'
> > - Rename 'internet2.dll' to 'internet.dll'
> >
> > Now, R will use the same configuration as Internet Explorer does. If
you
> can
> > access the web via Internet Explorer through a proxy, i.e., if you
> correctly
> > configure it, then, it should now be the same for R.
> >
> > If I understand, primary 'internet.dll' is more reliable but
it bypass
> > internet access configuration of IE. 'internet2.dll' is
provided as an
> > alternative in cases where 'internet.dll' fails, like an
access through
> a
> > proxy.
> 
> internet.dll also works through a proxy.  Why it fails on some Windows
> systems is unknown: we have been unable to reproduce the problem.  Now
> 1.3.1 is released, the documentation shows how to set proxies for each.
> (Binaries for 1.3.1 are not yet on CRAN.)
> 
> -- 
> Brian D. Ripley,                  ripley at stats.ox.ac.uk
> Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
> University of Oxford,             Tel:  +44 1865 272861 (self)
> 1 South Parks Road,                     +44 1865 272860 (secr)
> Oxford OX1 3TG, UK                Fax:  +44 1865 272595
> 
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On Mon, 3 Sep 2001, RINNER Heinrich wrote:
> This reminds me of a question I've never asked yet: Is there a trick to
make
> this work when a username authentication is required for using the proxy?
> I need a user name and a password to connect to the Internet, and so I get:
> > version
>          _
> platform i386-pc-mingw32
> arch     x86
> os       Win32
> system   x86, Win32
> status
> major    1
> minor    3.0
> year     2001
> month    06
> day      22
> language R
> > CRAN.packages()
> trying URL `http://cran.r-project.org/bin/windows/contrib/PACKAGES'
> Error in download.file(url = paste(contriburl, "PACKAGES", sep =
"/"),  :
>         cannot open: HTTP status was `407 Proxy authorization required'
> >
>
> I understand why this does not work, but don't know what I can do about
it.
There is no provision for that in the default code.  (It's not usual
for http proxies.)

There was a documentation bug in 1.3.0 under Windows. Here's what
1.3.1 says

  Proxies can be specified via environment variables.
  Setting \code{"no_proxy"} stops any proxy being tried.
  Otherwise the setting of \code{"http_proxy"} or
\code{"ftp_proxy"}
  (or failing that, the all upper-case version) is consulted and if
  non-empty used as a proxy site.  For FTP transfers, the username
  and password on the proxy can be specified by
\code{"ftp_proxy_user"}
  and \code{"ftp_proxy_password"}.

  There is an alternative method if you have Internet Explorer 4 or
  later installed.   You can use \code{modules\\internet2.dll} to
  replace \code{modules\\internet.dll}, when
  the `Internet Options' of the system are used to choose proxies and so
  on; these are set in the Control Panel and are those used for Internet
  Explorer.

The procedure is the same under 1.3.0, and internet2.dll may work for you.
Alternatively, use method="wget".


-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272860 (secr)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html
Send "info", "help", or "[un]subscribe"
(in the "body", not the subject !)  To: r-help-request at
stat.math.ethz.ch
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