Re: [PLUG] OT: iTerm2 Leaks Everything You Hover in Your Terminal via DNS Requests

[PaulNM <plug@paulscrap.com>]

On 09/20/2017 11:30 PM, brent timothy saner wrote:
> On 09/20/2017 10:47 PM, PaulNM wrote:
>
> > To be fair it wasn't about determining valid urls, but whether or not
> > there was a responding site at said url.
>
> +1; this is something that can EASILY be done:
>
> - without taking the time for a dns query (slow connection or resolvers?
> gl;hf)
> - without the LEAKING.
>
> by simply using a regex for a URI. heck, being that it's (mostly) in
> objC, tada:
>
> https://stackoverflow.com/questions/7016957/checking-if-a-string-is-a-url-objective-c
>
> totally offline parsing, no dependencies on external speed or
> connection. (i believe this is how e.g. gnome-terminal handles
> in-terminal link rendering, which is why you can even do things like
> clicking on

You misunderstand what I wrote. Url parsing is quite simple, they follow 
specific patterns. Determining whether a website exists and responds at 
that location is another matter. The only way to tell that is to 
actually go there and ask, and you need DNS and an internet connection 
to do that.

For instance, "http://paulnmisabigdummy.biz"; is a perfectly valid url, 
but there's no site there. (Nor is the domain registered in this case.)

For some reason the iTerm folks wanted to test that a site was actually 
there first, rather then just highlighting it anyway.

-- PaulNM
___________________________________________________________________________
Philadelphia Linux Users Group         --        http://www.phillylinux.org
Announcements - http://lists.phillylinux.org/mailman/listinfo/plug-announce
General Discussion  --   http://lists.phillylinux.org/mailman/listinfo/plug