this post was submitted on 28 Aug 2023

806 points (98.9% liked)

Selfhosted

40438 readers

446 users here now

A place to share alternatives to popular online services that can be self-hosted without giving up privacy or locking you into a service you don't control.

Rules:

Be civil: we're here to support and learn from one another. Insults won't be tolerated. Flame wars are frowned upon.
No spam posting.
Posts have to be centered around self-hosting. There are other communities for discussing hardware or home computing. If it's not obvious why your post topic revolves around selfhosting, please include details to make it clear.
Don't duplicate the full text of your blog or github here. Just post the link for folks to click.
Submission headline should match the article title (don’t cherry-pick information from the title to fit your agenda).
No trolling.

Resources:

selfh.st Newsletter and index of selfhosted software and apps
awesome-selfhosted software
awesome-sysadmin resources
Self-Hosted Podcast from Jupiter Broadcasting

Any issues on the community? Report it using the report flag.

Questions? DM the mods!

founded 2 years ago

MODERATORS

[email protected]

806

I just developed and published a script to clear your pict-rs object storage from potential CSAM. (github.com)

submitted 1 year ago* (last edited 1 year ago) by [email protected] to c/[email protected]

103 comments fedilink hide all child comments

I noticed a bit of panic around here lately and as I have had to continuously fight against pedos for the past year, I have developed tools to help me detect and prevent this content.

As luck would have it, we recently published one of our anti-csam checker tool as a python library that anyone can use. So I thought I could use this to help lemmy admins feel a bit more safe.

The tool can either go through all your images via your object storage and delete all CSAM, or it canrun continuously and scan and delete all new images as well. Suggested option is to run it using --all once, and then run it as a daemon and leave it running.

Better options would be to be able to retrieve exact images uploaded via lemmy/pict-rs api but we're not there quite yet.

Let me know if you have any issue or improvements.

EDIT: Just to clarify, you should run this on your desktop PC with a GPU, not on your lemmy server!

(page 2) 50 comments

sorted by: hot top controversial new old

[–] [email protected] 6 points 1 year ago (1 children)

Can this be used with Mastodon as well?

load more comments (1 replies)

[–] [email protected] 5 points 1 year ago

Amazing work.

[–] [email protected] 4 points 1 year ago (1 children)

Now if you can make this work with mastodon, i'd be eternally grateful.😁

[–] [email protected] 8 points 1 year ago

It's software agnostic. So long as you're storing you're images in object storage, it should work

[–] [email protected] 3 points 1 year ago (1 children)

I think deleting images from the pictrs storage can corrupt the pictrs sled db so I would not advise it, you should go via the purge endpoint on the pictrs API.

[–] [email protected] 1 points 1 year ago (1 children)

Nah. It will just not find those images to serve

[–] [email protected] 1 points 1 year ago (1 children)

Interesting, when I tried a while back it broke all images (not visible on the website due to service worker caching but visible if you put any pictrs url into postman or something)

[–] [email protected] 1 points 1 year ago (1 children)

Well you can clearly see images still here ;)

[–] [email protected] 1 points 1 year ago* (last edited 1 year ago) (1 children)

True, you're correct. I'm just not sure how you did it without corrupting the sled db. Maybe I'm just unlucky

[–] [email protected] 1 points 1 year ago

the sled db is not touched. It's just that when pict-rs is trying to download the file pointed by the sleddb, it's get a 404

[–] [email protected] 3 points 1 year ago (1 children)

Can this be used with the Lemmy-easy-deploy method?

[–] [email protected] 4 points 1 year ago (1 children)

This shouldn't run on your lemmy server (unless your lemmy server has a gpu)

[–] [email protected] 1 points 1 year ago (1 children)

I can put one in..

[–] [email protected] 2 points 1 year ago

I don't know your setup, but unless it's a very cheap GPU, it would be a bit of a waste to use it only for this purpose. But up to you

load more comments