[Http-webtest-general] Re: Error messages from StatusTest

[William M. <wi...@kn...>]

On 2 Oct 2002 at 12:41, Ilya Martynov wrote:
> Yes, I'm using LWP for networking operations. Yes, LWP generates such
> error messages itself. When it encounters an error it just generates
> HTTP::Response object with status code 500. Frankly I don't know if it is
> possible at all to distinguish errors received from a server from LWP
> generated errors (other than using regexps on error messages what is very
> error prone).

Hi Ilya,

Thanks for the reply. I've created a test script using LWP which 
demonstrates the error message received when an invalid url is used or a 
valid url is used but a connection cannot be made (I disconnected my 
ethernet cable for this test). See code at end for my sample test.

Both tests result in the following error message from LWP:
"500 (Internal Server Error) Can't connect to www.yahoo.edu:80 (Bad 
hostname 'www.yahoo.edu')"

That doesn't seem like a valid response from LWP. I've searched their 
mailling list archives and found one message which suggests that a 504 
response should be returned for an invalid dns entry. However, I saw no 
discussion about what a timeout should return. I've just joined the list 
and posted this query. Should be interesting to see what feedback I get... 
I'll keep you posted.

Cheers,
William

---------
#!/usr/bin/perl -Tw
use strict;

#
# TESTING HTTP::RESPONSE
#
use LWP::UserAgent;
use HTTP::Request;
use HTTP::Response;

my $url = 'http://www.yahoo.edu'; # invalid url
#my $url = 'http://www.yahoo.com'; # valid url - be sure your connection 
times out to see error
my $ua = LWP::UserAgent->new;
my $request = HTTP::Request->new(GET => $url);
my $response = $ua->request($request);
if ($response->is_success) {
	print $response->content;
} else {
	print $response->as_string;
}
------------
-- 
 Lead Developer
 Knowmad Services Inc. || Internet Applications & Database Integration
 http://www.knowmad.com