Re: [Rd] [R] HTTP User-Agent header

From: Robert Gentleman <>
Date: Fri 28 Jul 2006 - 19:12:32 GMT

I wonder if it would not be better to make the user agent string something that is configurable (at the time R is built) rather than at run time. This would make Seth's patch about 1% as long. Or this could be handled as an option. The patches are pretty extensive and allow for setting the agent header by setting parameters in function calls (eg download.files). I am not sure there is a good use case for that level of flexibility and the additional code is substantial.

The issue that I think arises is that there are potentially other systems that will be unhappy with R's identification of itself and so some users may also need to turn it off.

Any strong opinions?

James P. Howard, II wrote:
> On 7/28/06, Seth Falcon <> wrote:

>> I have a rough draft patch, see below, that adds a User-Agent header
>> to HTTP requests made in R via download.file.  If there is interest, I
>> will polish it.

> It looks right, but I am running under Windows without a compiler.
Robert Gentleman, PhD
Program in Computational Biology
Division of Public Health Sciences
Fred Hutchinson Cancer Research Center
1100 Fairview Ave. N, M2-B876
PO Box 19024
Seattle, Washington 98109-1024

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