Question

I need to verify if given URL matches my domain mask.

Example: I want to allow only domains which satisfy this “pseudo-mask”:

https://*.domain.com
http://*.domain.com

So next domains are OKAY:

http://my.domain.com/something/blah.html
https://www.domain.com/
http://domain.com/go/somewhere.html
https://very.weird.domain.com/index.jsp

but next domains are NOT OKAY:

https://domain.com.google.com/other.html
http://my.domainfake.com/haha.jsp
https://my.fakedomain.com/

Answer 1

^https?://[^/@]*\.domain\.com(/.*)?$

(The not-/ to stop .domain.com appearing in the path, the not-@ to stop username:password@ abuse.)

Better, though: use the URL class built into Java to parse a URL properly. You can then just read the host property and check that it endsWith your domain.