Login & Redirection Script Php/MySQL/Joomla

Our business often creates websites (mostly joomla based) for clients (most hosted as subdomains of our own site, but not always) and we would like to centralise the login system so that there is a single login page (I can provide the html template) at eg. [login to view URL] through which all our clients login and are redirected (and logged in) to their own sites. The sites all require login for access so it's important that once the clients are redirected they are also logged in to the websites (only joomla logins required for now)... For example Client 1 goes to: [login to view URL] logins in with u. site1, p. site1pass and is redirected and logged in to: [login to view URL] Client 2 goes to: [login to view URL] logins in with u. site2, p. site2pass and is redirected and logged in to: [login to view URL] and so on. I'd like it to be secure as well if possible. ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Deliverables must be in ready-to-run condition, as follows? (depending on the nature? of the deliverables): a)? For web sites or? other server-side deliverables intended to only ever exist in one place in the Buyer's environment--Deliverables must be installed by the Seller in ready-to-run condition in the Buyer's environment. b) For all others including desktop software or software the buyer intends to distribute: A software? installation package that will install the software in ready-to-run condition on the platform(s) specified in this bid request. 3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement). ## Platform PHP/MySQL/Joomla