HTTPS Redirect based on http_response

New to IRules and just trying to wrap my head around some of the logic here....

 

 

I am looking to capture non-secure login pages and automatically redirect the user to make an https request back to the same page. I am looking for a way to detect that a password field is about to be passed back to the user on an unsecure connection. The SSL termination is on the F5 and the request to the backend servers are unencrypted. Unfortunately this is old web code and these pages are spread throughout the environment. I am looking for a temporary fix until the code can be fixed.

 

 

I know how to create a redirect and I have the regular expression I can use to detect the password field.

 

I need help with two things. How do I detect whether the user is connected via SSL and how do I detect the password field using a regular expression looking at the http_response so I can force a redirect?

 

 

Thanks