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comp.lang.ruby

FileTest.exists? over HTTP

neilc

8/15/2006 6:17:00 PM

HI

I would like to test for the existence of a file over HTTP. I have tried
various combinations of File.stat and FileTest.exists? with no results.

For example (image.jpg exists)

if FileTest.exists?("http://domain.com/image...)
puts "found file"
end

does not print found file even though the file exists

What am I doing wrong ?

Thanks in Advance



--
Posted via http://www.ruby-....
2 Answers

khaines

8/15/2006 6:26:00 PM

0

Logan Capaldo

8/16/2006 4:52:00 AM

0


On Aug 15, 2006, at 2:16 PM, Neil Charlton wrote:

> HI
>
> I would like to test for the existence of a file over HTTP. I have
> tried
> various combinations of File.stat and FileTest.exists? with no
> results.
>
> For example (image.jpg exists)
>
> if FileTest.exists?("http://domain.com/image...)
> puts "found file"
> end
>
> does not print found file even though the file exists
>
> What am I doing wrong ?
>

As Kirk mentioned, the only transparent url support is with open-uri.
Also File.exists? does not really make sense for a url. A given url
does not necessarily point to a real file. Does it exist if you get a
response code of 200? What about 302? What about 404? Sure the
webserver says it doesn't exist, but you do get some content back
usually.

> Thanks in Advance
>
>
>
> --
> Posted via http://www.ruby-....
>