[wp-trac] [WordPress Trac] #20037: Introduce 'noindex' filter for robots meta tag

[WordPress Trac]

#20037: Introduce 'noindex' filter for robots meta tag
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 Reporter:  MartyThornley  |      Owner:
     Type:  enhancement    |     Status:  new
 Priority:  normal         |  Milestone:  Awaiting Review
Component:  Template       |    Version:
 Severity:  normal         |   Keywords:  needs-patch
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 As things are right now, themes and plugins add robots meta tag lines by
 just adding an action to wp_head, with no way of knowing who has added
 what. Because it is not done as a filter, there is no way to prioritize or
 alter things.

 As far as I can see there are two functions that are hooked to wp_head to
 add the meta tag for robots, the noindex() and wp_no_robots() function in
 '/wp-includes/general-template.php'. All noindex() does is look to see if
 a blog is marked private, then calls wp_no_robots(). In other places, like
 the signup and login pages, wp_no_robots is manually added.

 To help clear up the confusion, we could just call wp_no_robots whenever
 we need to add a robots meta tag, use wp_no_robots to do some default
 logic, then allow plugins to filter it depending on where we are.

 Working on a quick patch now and will add.

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Ticket URL: <http://core.trac.wordpress.org/ticket/20037>
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