Build basic URL Shortner using codeigniter & mysql

Looking for someone to build a basic url shortner using codeigniter and mysql. Requirements: - must use codeigniter and mysql - shorten URLs using a combination of only numbers and lower/uppercase letters - must block access from any IP address contained in a file called "[login to view URL]" - [login to view URL] will contain a (large) list of subnets (x.x.x.x/32 x.x.x.x/24 x.x.x.x/20 etc) - require users to sign in before shortening URLs which should require -- signup page -- email address -- password -- country of residence -- password recovery page - Shortened URLs should be accessible publicly Successful winner of this project will also be asked to build: - Admin interface - stats pages - user area (additional functionality)