How to prevent a user from watching videos from a site outside of the same site?

Question

Information Security

I have a movie site.
How to make it so that the user can watch movies only on the site, and if he wants, for example:
- Open or copy the url of the video to another tab
- Place it on your site
- Download
Then he was immediately sent somewhere far away, or given a non-working link?
I know that this can be done somehow, like Netflix did .

Answer 1

No way.
Nothing will stop me from opening a site in a virtual machine and enabling recording on the host. Yes, there will be no quality, but I can write it down, and in such a way that the virtual machine will never know about it. But this is the most hardcore way. Usually everything is much simpler - a pseudo-client is written that supposedly plays the movie, but actually downloads it

Answer 2

I will tell you a secret, if you show (transfer) content to a client, then nothing prevents him from saving it on his PC.

Answer 3

RewriteBase / 

RewriteCond %{REQUEST_URI} /products/$
RewriteCond %{QUERY_STRING} ^SECTION_ID=10&ELEMENT_ID=153$
RewriteRule ^.*$ /products/trafarety/trafaret-etno/? [L,R=301]