Skip to main content

!Friendica Support Seeing this in my log. Any idea how to get to the bottom of it?
!Friendica Support

Friendica Support reshared this.

in reply to Sarah Brown

Sarah Brown
Sarah Brown
•

Additional info: I have an "Update contact" job in the worker queue that has been stuck for 6 days. The contact is: hexbear.net/u/Florn

As I've noticed previously, this is a contact with an animated GIF as an avatar. Every time this happened, blocking the contact, and deleting the job from the worker queue, fixes the problem.

This is happening on both 2024.03 and 2024.08

Friendica Support reshared this.

in reply to Sarah Brown

FeralRobots
FeralRobots
• •
maybe relevant to this?
blog.cloudflare.com/uncovering…

Uncovering the Hidden WebP vulnerability: a tale of a CVE with much bigger implications than it originally seemed

Recently, Google announced a security issue in Google Chrome, titled "Heap buffer overflow in WebP in Google Chrome." Initially, it seemed like just another bug in the popular web browser.
The Cloudflare Blog

Friendica Support reshared this.

in reply to FeralRobots

Sarah Brown
Sarah Brown
•

@FeralRobots I doubt it. The common factor is apparently genuine accounts with animated avatars, and it's now happened several times. I think the Friendica worker has some sort of size limit for avatars, and when one exceeds it, it's not failing gracefully, but instead bunging up the system.

PSA, guys, yes, your animated GIF avatars are lovely. Also, the Fediverse consists of thousands of servers, many of which are self hosted. Consider whether your avatar which goes on for megabyte upon megabyte is maybe a little bit antisocial?

@FeralRobots

Friendica Support reshared this.

in reply to Sarah Brown

FeralRobots
FeralRobots
• •
good to hear, honestly. (We used to think large, long animated GIFs were kind of antisocial back in the 90s.)

Friendica Support reshared this.

in reply to FeralRobots

Sarah Brown
Sarah Brown
•

@FeralRobots Have now had to block and purge 6 people because of it. Wonder if any of them are wondering what they've done wrong?

Guys, you're crashing my server!

@FeralRobots

Friendica Support reshared this.

in reply to FeralRobots

Sarah Brown
Sarah Brown
•
@FeralRobots This one has an avatar that is over 300 kilobytes. Most of them are, like, 8k.
@FeralRobots

Friendica Support reshared this.

in reply to Sarah Brown

Sarah Brown
Sarah Brown
•
@FeralRobots Mine is an entire actual decent sized photo of me and it's only 11k
@FeralRobots

Friendica Support reshared this.

in reply to Sarah Brown

Sarah Brown
Sarah Brown
•

Further update: Confirmed that purging the contact makes the error go away.

Maybe this is a problem with avatar graphics that are too large, and it just keeps trying forever rather than backing off gracefully?

Friendica Support reshared this.

in reply to Sarah Brown

Sarah Brown
Sarah Brown
•

OK, more digging. It's failing in line 231 of /var/www/html/src/Object/Image.php.

Which is this:

} catch (\Throwable $error) {
			/** @see https://github.com/php/doc-en/commit/d09a881a8e9059d11e756ee59d75bf404d6941ed */
			if (strstr($error->getMessage(), "gd-webp cannot allocate temporary buffer")) {
				DI::logger()->notice('Image is probably animated and therefore unsupported', ['message' => $error->getMessage(), 'code' => $error->getCode(), 'trace' => $error->getTraceAsString(), 'file' => $this->filename]);
			} else {
				DI::logger()->warning('Unexpected throwable.', ['message' => $error->getMessage(), 'code' => $error->getCode(), 'trace' => $error->getTraceAsString(), 'file' => $this->filename]);
			}

So my suspicion was right: it's animated GIF avatars which are causing this. However, rather than fail gracefully, I'm left with a zombie worker job which seems to persist forever.

Friendica Support reshared this.

⇧