RedInk Design - Smart OG Image Tag
 

Currently vBulletin's facebook open graph image tag uses what's entered in Options -> Facebook Options -> Image URL. If you leave this field blank, the <og:image> meta tag is omitted and Facebook's crawler will try to use any image found on the page.

This mod looks for the first [img] or [attach] tags in a post and uses that image for the <og:image> meta tag. This will tell facebook's crawler to use that image for the post.

This mod requires the Facebook Platform to be enabled on vBulletin (Options -> Facebook Options -> Enable Facebook Platform).

It will first look for an [img] tag is the post, if none is found, it will look for an [attach] tag. If neither is found, it will use the Image you entered in the facebook options (Options -> Facebook Options -> Image URL). If that field was left empty, it will omit the <og:image> tag which is default vBulletin behavior.

This was only tested on 4.2.0 (PL3).

Installation:
Admin -> Plugin & Products -> Manage Products -> Add/Import Product

Update 12/4/2013
Changed image priorities - avatar and site logo are not priority

Update 11/19/2013
Plugin updated to support multiple images

Installed and work fine for me
Thanks,

excuseme, I installed this product but when do you config the og:image tag??

This mod looks for the first [img] or [attach] tags in a post and uses that image for the <og:image> meta tag. This will tell facebook's crawler to use that image for the post.

You don't explicitly set the og:image tag.

I made the importation and left blank the FB Image URL, but When you create the page, the tag og: image is omitted, but there are images in the the page (article of CMS Content) :(

This mod works fine for forum thread but not work for cms article

If you want it to work with the CMS articles, what should I change in the XML? There I took a look and the only thing I've noticed is that these variables: $GLOBALS['threadinfo']['description']. There is a variable that identifies those items of CMS?

OMG, thank you I have been looking for this forever!

crap fb_opengraph_array isn't a hook in my version of vbulletin

Okay, I just inserted the plugin manually into functions_facebook.php since there isn't a comparable hook.

@Waiter - $vbulletin->options['description'] is the variable, but I don't believe it includes img and attach tags for the cms.