Regex support for urltransform

[MasterKia]

#2923:

I want to change https://upera.shop/ref/3m8/ckz0oa1m to https://upera.shop/ckz0oa1m to prevent tracking, but I can't do this using $urltransform since it doesn't support regex.

They're the download links here:
https://www.doostihaa.com/post/1402/08/09/%d9%82%d8%b3%d9%85%d8%aa-18-%d9%85%da%af%d9%87-%d8%aa%d9%85%d9%88%d9%85-%d8%b9%d9%85%d8%b1-%da%86%d9%86%d8%af-%d8%aa%d8%a7-%d8%a8%d9%87%d8%a7%d8%b1%d9%87.html

3m8 is the tracking code for each site (many sites use the upera.shop download links).
ckz0oa1m is the video code.

A specific URL where the issue occurs.

https://upera.shop/ref/3m8/ckz0oa1m

[gorhill]

What if urltransform uses the same syntax as replace=:

"/" regexp "/" replacement "/" modifiers

[u-RraaLL]

Is there any chance you'd consider either:

• Allowing subdomain changes,
• Forcing absolute links become relative?

Why I'm asking - a few days ago reddit made my account part of an experiment where they forced sh.reddit.com interface onto me. That interface is very incomplete and it made moderating quite difficult.

Other than contacting reddit to get to the bottom of it, I tried switching to the new.reddit.com domain. It worked only partially, because there's a number of absolute links used in that interface (including inside mod tools).

Before successfully making my case for getting me out of this experiment, I was considering my options and whether a userscript or installing Redirector was my only way out of this. So I'm just wondering if there'd be a way of doing it with uBO.

Since this would surely involve a lot of work for little benefit, please treat this as more of a theoretical question than a serious request.

[anewuser]

@u-RraaLL If you use Firefox, I recommend Request Control for this. The default example rules might be outdated, but it allows you to perform all sorts of advanced URL manipulations with very specific rules. I've created these for Old Reddit: reddit.txt. If you want to play with them, go to the Settings tab and use the Import rules option.

[gorhill]

I won't change the requirement that the resulting transformed URL has to be on the same domain, there are extensions specialized in this, this doesn't have to be undertaken by uBO, this would just open the door to a huge amount of added burden to maintainers because it would become expected uBO replace those specialized extensions.

Forcing absolute links become relative?

I don't understand that request, urltransform= works at the webRequest level, there are no relative URLs at that level.

[MasterKia]

a huge amount of added burden to maintainers

@gorhill Before [trusted]-set-cookie and local/session-storage was added, we declined cookice notices reports but now we address those. Ultimately it's up to us volunteers.

I won't change the requirement that the resulting transformed URL has to be on the same domain

That would address these and most strict-blocked redirect URLs that people complain about Peter Lowe's list.
#2678 (comment)
&
#2678 (comment)

[gorhill]

I commented in the past about why I see burden ahead with opening the door to "bypass url-based trackers", see #1784 (comment). There will always be a case that is just one step away from whatever ability we add to urltransform, there will always be a request to extend to include that one-step-away case, and in the end urltransform will become an ugly pile of code to maintain. It's why I really see this as best taken care by a specialized extension.

If I was to add such capability, there would need to be a very solid argument that we are not going to go further than a very well defined ability.

[gwarser]

This is fixed now. ||youtube.com/shorts/$urltransform=/^\/shorts\/([^\/?]+)/\/watch?v=\$1/ works for YT shorts when navigated directly. @MasterKia ?

[MasterKia]

@gwarser Your filter works.

||upera.shop/ref/$doc,urltransform=/^\/ref\/[^\/]+//