Cloaking script for Facebook advertising + admin panel

Cloaking script for Facebook advertising is needed, in which the content (webpage) presented to the Facebook crawlers is different to that presented to the real users clicking on an ad. Smart cloaking by: [login to view URL] user agent [login to view URL] by ip addreses With admin panel with these features: -Country filter (define rule for country for a specific ad) -Reports (request log by facebook scrapper, request log by country) Please contact only if you understand the need in this script, specifically for Facebook advertisers abd can manage this project. Thanks