From: Nguyen <buunguyen@...>
Date: 2006-11-30T11:10:05+09:00
Subject: Re: Download only http headers

Work like charm.  Thanks a great deal, Tom.

Nguyen

Tom Werner wrote:
> Nguyen wrote:
> > I'm writing a small app which needs to list all HTML pages (only HTML
> > pages, no image, no CSS, pdf, gif etc.) from a starting page.  Given
> > any link, I use Net::HTTP to download the content and examine the
> > content-type header in order to determine whether it is a HTML page or
> > s/t else (I don't think pattern matching will work because there are
> > dynamic pages being able to return arbitrary resources [HTML, images
> > etc.]); however, I cannot find anyway to only read the headers without
> > reading the whole contents of that resource (e.g. a PDF).  That would
> > make my app perform very slowly while all I want is just listing the
> > HTML pages.
> >
>
> Net::HTTP has the ability to do HEAD commands in addition to GET. You
> can get the headers that way.
> 
> Tom