WiFi Shield - script configuration

Hi guys !

I Hope someone will get back to me ;)

I am working on a project (IoT) based on Arduino and the WiFi Shield. I am wondering if it is possible to create a script so the final client gets the object, modify the script to enter the ssid of the network, login/psw and then the arduino has access to internet to run the embedded code?

Is there any way to make this up and running?

Thank you very much!

This is a hen/egg problem: How would that final client be reached if the Arduino is not allowed to access the WiFi network? The WiFi parameters are not for internet access but to be part of the WiFi network. That might be equal to having internet access in some cases but not every WiFi network is connected to the internet.

BTW: What's a script in that context? What's a final client? What object should be transfered?