I'm curious if it is possible, in a plugin/custom code, to take an URL that has been generated by the currently running WordPress site & parse it to retrieve the $blog_id and $post_id?
ie. taking a string like "myblog.mysite.com/2012/03/16/whatever/" and determining that this is post #6 ("whatever") on blog #2 ("myblog").
I realize that I can probably strip the URL and parse the domain myself, but I hope that there might be recommended WordPress methods exposed to make this more robust across URL formats.