This might sound newb - which it is...

Ive done a couple sites using concrete and have always struggled with the "Maintenance mode" - Ive created a simple redirect script based on ip for development that i thought would be a really useful plugin for designers like myself

What are the chances of an add-on being able to edit the main index.php file (write a few lines of php before the dispatcher call) and also create a new "maintenance" folder in the installation root with the maintenance page html. ?

Would the system have permission to update that file and would such an action be allowed through the marketplace submission rules?

If anyone is interested -https://gist.github.com/fairlane57/5461762...