Can I remove "nofollow" for trusted links?

Question

It would be nice to remove the nofollow on some "trusted domains" - I'm mainly thinking about other pages on my own site, but maybe I'll open it up as I see good sites we ought to "pass on link juice" (god I hate that phrase).

Anyway...whereabouts in the code would I need to look to change this?

Answer 1

The function qa_html_convert_urls(...) in qa-app-format.php is the place to look. Unfortunately links are currently added via a big regular expression, so it won't be so easy to filter based on trusted domains. I guess the best way to do it would be to apply a second regular expression substitution, which looks for links to those trusted domains, and removes the nofollow.

Comments

UPDATE: see here for a better answer - http://question2answer.org/qa/8364/how-to-remove-nofollow-for-links-to-own-website

---

OK thanks! I added another regex after the original one. Here is the code from the function, in case it's useful for anyone else:

    $search = '/([^A-Za-z0-9])((http|https|ftp):\/\/\S+\.[^\s<>]+)/i';
    $replace = '\1<a href="\2" rel="nofollow">\2</a>';
    $html = trim( preg_replace($search, $replace, ' '.$html.' ') );
       
    // remove nofollow for my links
    $search = '/href="http:\/\/YOURDOMAIN\/([^"]*)" rel="nofollow"/i';
    $replace = 'href="http://YOURDOMAIN/\1"';       
    $html = trim( preg_replace($search, $replace, $html) );
       
    return $html;

Obviously, replace YOURDOMAIN with your actual domain name.

---

This is really useful thank you, if I wanted to remove the no follow attribute in its entirety as we have set an if statement so only administrators have access to the WYSIWYG editor I thought I would simply be able to remove the "nofollow" attribute from qa_html_convert_urls(...) however this hasn't seemed to work, any thoughts?

---

this did not work for me, can you show me what I did wrong in the code:

This is what I have now:
function qa_html_convert_urls($html, $newwindow=false)
/*
    Return $html with any URLs converted into links (with nofollow and in a new window if $newwindow)
    URL regular expressions can get crazy: http://internet.ls-la.net/folklore/url-regexpr.html
    So this is something quick and dirty that should do the trick in most cases
*/
    {
        return trim(preg_replace('/([^A-Za-z0-9])((http|https|ftp):\/\/([^\s&<>"\'\.])+\.([^\s&<>"\']|&amp;)+)/i', '\1<A HREF="\2" rel="nofollow"'.($newwindow ? ' target="_blank"' : '').'>\2</A>', ' '.$html.' '));
     }
 // remove nofollow for my links
    $search = '/href="http:\/\/YOURDOMAIN\/([^"]*)" rel="nofollow"/i';
    $replace = 'href="http://YOURDOMAIN/\1"';       
    $html = trim( preg_replace($search, $replace, $html) );
       
    return $html;

This apparently does not work.