I have crawled through the source code of the Publicize module. I think most of the heavy lifting is done by Jetpack’s servers though.
I would like to be able to filter the message that is sent to social networks (specifically Google+ in my case). I run a linked list blog, and instead of having visitors click back to my blog, it would link directly to my original source url (which, again, is stored in a meta field on each post).
Here’s an example:
The permalink: http://blog.ryanrampersad.com/2014/09/19/the-state-of-grunt/
Google+ link: https://plus.google.com/+RyanRampersad/posts/gPWGhQUr3iY
The Google+ post points to my blog’s permalink – I would have it instead point to the meta field I have stored. My theme and feed are filtered so the “source url” is clickable in those mediums, I just can’t figure it out for the publicize system.
I found a VIP WordPress document mentioning wpas_post_url
but nothing I have tried with that filter works, or even makes sense – the snippet given is strange.
Any help would be great. Thanks!
https://wordpress.org/plugins/jetpack/