Problems with UserAgent to get through proxy

chaskins has asked for the wisdom of the Perl Monks concerning the following question:

Hi, I'm using the following code to get a web page via a proxy. But I get the following message when I run it "Message: Protocol scheme 'http' is not supported". Any Ideas why, and what I have to do to solve it?

use LWP::UserAgent;
$ua = LWP::UserAgent->new;
$ua->proxy('http', 'http://my.proxy:8000/');
$request = HTTP::Request->new('GET', 'http://www.perlmonks.org');
$response = $ua->request($request);

$bob = $response->as_string();

print "$bob \n";
[download]

Many thanks for any help. Chris

Comment on Problems with UserAgent to get through proxy Download Code

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Re: Problems with UserAgent to get through proxy by rob_au (Abbot) on Jan 17, 2002 at 18:10 UTC
This code works fine on my system when I replace the `$ua->proxy` line with the appropriate proxy details for my network - It may be worthwhile examining your network and/or proxy configuration (It is a HTTP proxy that you are running on your network and not a SOCKS proxy?) or if this code is part of a larger script, posting a larger section of your code. `perl -e 's&&rob@cowsnet.com.au&&&split/[@.]/&&s&.com.&_&&&print'`	[reply] [d/l]
Re: Re: Problems with UserAgent to get through proxy by chaskins (Sexton) on Jan 17, 2002 at 19:03 UTC
Ok I'll check things out. Thanks for your help. Chris	[reply]
Re: Re: Problems with UserAgent to get through proxy by chaskins (Sexton) on Jan 17, 2002 at 18:17 UTC
Still doesn't work on mine and I get this error msg (in full); `RC: 501 (Not Implemented) Message: Protocol scheme 'http' is not supported -----------------------------------` [download] Cheers Chris	[reply] [d/l]
Re: Re: Re: Problems with UserAgent to get through proxy by rob_au (Abbot) on Jan 17, 2002 at 18:29 UTC
Well, with this 'error' message my inclination is to suggest that you find out more about the proxy which you are connecting through as it would seem that this is where the problem lies. What software is running the proxy? Is it a HTTP or a SOCKS proxy? Is there any authentication required for access? If you don't know the answers to these questions, it might be worth sounding out your network administrator to get an idea as to how the proxy is set up. Good luck. `perl -e 's&&rob@cowsnet.com.au&&&split/[@.]/&&s&.com.&_&&&print'`	[reply]
Re: Problems with UserAgent to get through proxy by PrakashK (Pilgrim) on Jan 17, 2002 at 19:16 UTC
Try the script GET that is bundled with LWP. `$ GET -p http://my.proxy:8000/ http://www.perlmonks.org` [download] GET uses LWP::UserAgent internally, so this would let you test your proxy setup quickly. Once you got that working, you might continue to work on your script. /prakash	[reply] [d/l]