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Re: Re: Checking "incomplete" URLs

by chipmunk (Parson)
on Feb 19, 2002 at 04:29 UTC ( #146309=note: print w/ replies, xml ) Need Help??


in reply to Re: Checking "incomplete" URLs
in thread Checking "incomplete" URLs

By default, LWP::UserAgent automatically follows redirects for any request except a POST. The redirect_ok() method controls this behavior:

$ua->redirect_ok This method is called by request() before it tries to do any redirects. It should return a true value if a redirect is allowed to be performed. Subclasses might want to override this. The default implementation will return FALSE for POST request and TRUE for all others.
Recently I had to write a script which posted a form on a remote site, and then checked the text of the resulting page to make sure the post succeeded. Unfortunately, there was a redirect to that page.

First I tried a making a subclass with a new redirect_ok() that always returned 1. Unfortunately, LWP::UserAgent used a POST request for the redirect; the remote server returned a 405 error. I ended up writing a redirect_ok() which replaced the POST request object in @_ with a new one that did a GET instead. Ugly, but it worked!


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Re: Re: Re: Checking "incomplete" URLs
by IlyaM (Parson) on Feb 19, 2002 at 11:16 UTC
    You could upgrade to latest libwww and just use method requests_redirectable from LWP::UserAgent
    $ua->requests_redirectable( ); # to read $ua->requests_redirectable( \@requests ); # to set This reads or sets the object's list of request names that "$ua->redirect_ok(...)" will allow redirection for. By default, this is "['GET', 'HEAD']", as per RFC 2068. To change to include 'POST', consider: push @{ $ua->requests_redirectable }, 'POST';

    --
    Ilya Martynov (http://martynov.org/)

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