Question about allowing access to part of the site based on previous URL

Is there a way to allow access to a particular part of a site based on the referrer and the request for a particular part of the site?

 

 

For ex,

 

 

website:

 

 

If there is a request for "/URLdocs"

 

a) Allow access to that URL only if (referer) they are coming from /URLTEST1 or /URLTEST2

 

ex. if I'm on website/URLTEST1, I can access /URLdocs

 

 

 

b) If the referer is not URLTEST1 or URLTEST2, send them back to the index of the webpage. (Use HTTP Redirect for this)

 

 

ex. if I'm on website/URLsomehwereelse and make a request for /URLdocs, I can not access /URLDOCS and sent back to index of the main page

 

 

c) if there is no request for /URLdocs, just pass regular requests

 

probably wouldn't need to add this in the IRULE as there would be no criteria for it

 

 

 

 

Any help or suggestions would be appreciated.

 

 

THX