@prologic@twtxt.net sorry but nope. Neither jenny, nor yarnd supports it at all. This was treated as a thread because I picked one of @falsifian@www.falsifian.org’s twtxts (with the “old subject”), and replied to it (hence starting the thread).

@prologic@twtxt.net based on @falsifian@www.falsifian.org’s findings, I don’t believe this is quite accurate.

“yarnd(_at least_) doesn't support creating such a custom TwtSubject, but it will reply and respect and thread one if one was constructed."

Hmm, but yarnd also isn’t showing these twts as being part of a thread. @prologic@twtxt.net you said yarnd respects customs subjects. Shouldn’t these twts count as having a custom subject, and get threaded together?

yarnd just doesn’t render the subject. Fair enough. It’s (replyto http://darch.dk/twtxt.txt 2024-09-15T12:50:17Z), and if you don’t want to go on a hunt, the twt hash is weadxga: https://twtxt.net/twt/weadxga

@prologic@twtxt.net Specifically, I could view yarnd’s copy here, but only as rendered for a human to view: https://twtxt.net/twt/st3wsda

@movq@www.uninformativ.de thanks for getting to the bottom of it. @prologic@twtxt.net is there a way to view yarnd’s copy of the raw twt? The edit didn’t result in a visible change; being able to see what yarnd originally downloaded would have helped me debug.

@prologic@twtxt.net One of your twts begins with (#st3wsda): https://twtxt.net/twt/bot5z4q

Based on the twtxt.net web UI, it seems to be in reply to a twt by @cuaxolotl@sunshinegardens.org which begins “I’ve been sketching out…”.

But jenny thinks the hash of that twt is 6mdqxrq. At least, there’s a very twt in their feed with that hash that has the same text as appears on yarn.social (except with ‘ instead of ’).

Based on this, it appears jenny and yarnd disagree about the hash of the twt, or perhaps the twt was edited (though I can’t see any difference, assuming ’ vs ’ is just a rendering choice).

@prologic@twtxt.net I believe you when you say registries as designed today do not crawl. But when I first read the spec, it conjured in my mind a search engine. Now I don’t know how things work out in practice, but just based on reading, I don’t see why it can’t be an API for a crawling search engine. (In fact I don’t see anything in the spec indicating registry servers shouldn’t crawl.)

(I also noticed that https://twtxt.readthedocs.io/en/latest/user/registry.html recommends “The registries should sync each others user list by using the users endpoint”. If I understood that right, registering with one should be enough to appear on others, even if they don’t crawl.)

Does yarnd provide an API for finding twts? Is it similar?

@prologic@twtxt.net Here’s a log entry:

Aug 27 15:59:43 buc yarnd[1200580]: [yarnd] 2024/08/27 15:59:43 (IP_REDACTED) "GET /external?nick=lovetocode999&uri=https://URL_REDACTED HTTP/1.1" 200 35442 14.554763ms

HTTP 200 status, not 404.

@prologic@twtxt.net This does not seem to fix the problem for me, or I’ve done something wrong. I did the following:

1. Pull the latest version from git (I have commit 7ad848, same as on twtxt.net I believe).
   
2. make build and make install
   
3. Restart yarnd
   
4. Refresh cache in Poderator Settings
   

Yet I still see these bogus /external things on my pod when I hit URLs like the one I sent you recently. When I hit such a URL with curl I think it’s giving an error? But in a web browser, the (buggy) response is the same as it was before I updated.

So, this problem is not fixed for me.

@lyse@lyse.isobeef.org Interesting. The yarnd --help currently says (for me):

  -R, --open-registrations            whether or not to have open user registgration

meaning it doesn’t give the default setting or warn you that you need to use -R=false and not -R false. It also leaves unclear whether --open-registrations false would work or if you need to do --open-registrations=false. It’s also unclear whether the setting change in the user interface is overridden by the command line arguments, overrides the command line arguments, is persisted across restarts.

Maybe all this is worth posting an issue for additional documentation on the git repo if there isn’t one already.

“registgration” is misspelled that way in the help by the way.

There is a bug in yarnd that’s been around for awhile and is still present in the current version I’m running that lets a person hit a constructed URL like

YOUR_POD/external?nick=lovetocode999&uri=https://socialmphl.com/story19510368/doujin

and see a legitimate-looking page on YOUR_POD, with an HTTP code 200 (success). From that fake page you can even follow an external feed. Try it yourself, replacing “YOUR_POD” with the URL of any yarnd pod you know. Try following the feed.

I think URLs like this should return errors. They should not render HTML, nor produce legitimate-looking pages. This mechanism is ripe for DDoS attacks. My pod gets roughly 70,000 hits per day to URLs like this. Many are porn or other types of content I do not want. At this point, if it’s not fixed soon I am going to have to shut down my pod. @prologic@twtxt.net please have a look.

@prologic@twtxt.net Yes, fetching the twt by hash from some service could be a good alternative, in case the twt I have does not @-mention the source. (Besides yarnd, maybe this should be part of the registry API? I don’t see fetch-by-hash in the registry API docs.)

@bender@twtxt.net I’m not a yarnd user, but automatically unfollowing on 404 doesn’t seem right. Besides @lyse@lyse.isobeef.org’s example, I could imagine just accidentally renaming my own twtxt file, or forgetting to push it when I point my DNS to a new web server. I’d rather not lose all my yarnd followers in a situation like that (and hopefully they feel the same).

@prologic@twtxt.net I don’t know if this is new, but I’m seeing:

Jul 25 16:01:17 buc yarnd[1921547]: time="2024-07-25T16:01:17Z" level=error msg="https://yarn.stigatle.no/user/stigatle/twtxt.txt: client.Do fail: Get \"https://yarn.stigatle.no/user/stigatle/twtxt.txt\": dial tcp 185.97.32.18:443: i/o timeout (Client.Timeout exceeded while awaiting headers)" error="Get \"https://yarn.stigatle.no/user/stigatle/twtxt.txt\": dial tcp 185.97.32.18:443: i/o timeout (Client.Timeout exceeded while awaiting headers)"

I no longer see twts from @stigatle@yarn.stigatle.no at all.

@prologic@twtxt.net There are a lot of logs being generated by yarnd, which is something I haven’t seen before too:

Jul 25 14:32:42 buc yarnd[1911318]: [yarnd] 2024/07/25 14:32:42 (162.211.155.2) "GET /twt/ubhq33a HTTP/1.1" 404 29 643.251µs
Jul 25 14:32:43 buc yarnd[1911318]: [yarnd] 2024/07/25 14:32:43 (162.211.155.2) "GET /twt/112073211746755451 HTTP/1.1" 400 12 505.333µs
Jul 25 14:32:44 buc yarnd[1911318]: [yarnd] 2024/07/25 14:32:44 (111.119.213.103) "GET /twt/whau6pa HTTP/1.1" 200 37360 35.173255ms
Jul 25 14:32:44 buc yarnd[1911318]: [yarnd] 2024/07/25 14:32:44 (162.211.155.2) "GET /twt/112343305123858004 HTTP/1.1" 400 12 455.069µs
Jul 25 14:32:44 buc yarnd[1911318]: [yarnd] 2024/07/25 14:32:44 (168.199.225.19) "GET /external?nick=lovetocode999&uri=http%3A%2F%2Fwww.palapa.pl%2Fbaners.php%3Flink%3Dhttps%3A%2F%2Fwww.dwnewstoday.com HTTP/1.1" 200 36167 19.582077ms
Jul 25 14:32:44 buc yarnd[1911318]: [yarnd] 2024/07/25 14:32:44 (162.211.155.2) "GET /twt/112503061785024494 HTTP/1.1" 400 12 619.152µs
Jul 25 14:32:46 buc yarnd[1911318]: [yarnd] 2024/07/25 14:32:46 (162.211.155.2) "GET /twt/111863876118553837 HTTP/1.1" 400 12 817.678µs
Jul 25 14:32:46 buc yarnd[1911318]: [yarnd] 2024/07/25 14:32:46 (162.211.155.2) "GET /twt/112749994821704400 HTTP/1.1" 400 12 540.616µs
Jul 25 14:32:47 buc yarnd[1911318]: [yarnd] 2024/07/25 14:32:47 (103.204.109.150) "GET /external?nick=lovetocode999&uri=http%3A%2F%2Fampurify.com%2Fbbs%2Fboard.php%3Fbo_table%3Dfree%26wr_id%3D113858 HTTP/1.1" 200 36187 15.95329ms

I’ve seen that nick=lovetocode999 a bunch.

@prologic@twtxt.net I’m still getting this crap:

abucci@buc:~/yarnd/yarn$ ls -lh /tmp/yarnd-avatar-*
-rw------- 1 abucci abucci 863M Jul 25 14:19 /tmp/yarnd-avatar-1594499680
-rw------- 1 abucci abucci 7.8G Jul 25 14:19 /tmp/yarnd-avatar-2144295337
-rw------- 1 abucci abucci 9.8G Jul 25 14:19 /tmp/yarnd-avatar-2334738193
-rw------- 1 abucci abucci  10G Jul 25 14:14 /tmp/yarnd-avatar-2494107777
-rw------- 1 abucci abucci 9.5G Jul 25 13:59 /tmp/yarnd-avatar-2619243454
-rw------- 1 abucci abucci  11G Jul 25 14:04 /tmp/yarnd-avatar-2922187513
-rw------- 1 abucci abucci 7.5G Jul 25 14:14 /tmp/yarnd-avatar-349775570
-rw------- 1 abucci abucci  10G Jul 25 14:09 /tmp/yarnd-avatar-3640724243
-rw------- 1 abucci abucci 901M Jul 25 14:19 /tmp/yarnd-avatar-3921595598
-rw------- 1 abucci abucci 9.5G Jul 25 13:59 /tmp/yarnd-avatar-609094539
-rw------- 1 abucci abucci 9.3G Jul 25 14:04 /tmp/yarnd-avatar-755173392
-rw------- 1 abucci abucci 7.9G Jul 25 14:09 /tmp/yarnd-avatar-984061000

Something like 100 Gbytes of this junk has accumulated since I updated and re-started the server. I’m now running the latest version of yarnd, so the update did not fix the problem. Something else is going wrong.

How are temporary files growing to 10 Gbytes in size? The name of the file is “yarn-avatar”, but why would avatars be so large?

@prologic@twtxt.net Alright, running yarnd 0.15.1 now. I stopped my hack so we’ll see if the VPS gets clogged with junk 😆

@prologic@twtxt.net

abucci@buc:~/yarnd/yarn$ make preflight
Checking Go version ...                 [ ERR ]
Go 1.16+ is required, found go1.22.5
FATAL: 🙁 preflight failed
make: *** [Makefile:33: preflight] Error 1

🤔

Hack of the day: running watch -n 60 rm -rf /tmp/yarn-avatar-* in a tmux because all of a sudden, without warning, yarnd started throwing hundreds of gigabytes of files with names like yarn-avatar-62582554 into /tmp, which filled up the entire disk and started crashing other services.

This is completely insane!

abucci@buc:/tmp$ du -sh /tmp/yarnd-avatar-*
564M    /tmp/yarnd-avatar-3024946878
7.2G    /tmp/yarnd-avatar-3122347915
11G     /tmp/yarnd-avatar-3533381443
445M    /tmp/yarnd-avatar-441914658

I’m going to have to shut down my server soon. This looks like some kind of DDoS. Whether intentional or not it’s filling up the disk at an unsustainable rate.

There are also a bunch of log messages scrolling by. I’ve never seen this much activity in the log:

Jul 25 01:37:39 buc.ci yarnd[829]: [yarnd] 2024/07/25 01:37:39 (149.71.56.69) "GET /external?nick=lovetocode999&uri=https://pagez.co.uk/services/your-own-100-fully-owned-online-vi>
Jul 25 01:37:39 buc.ci yarnd[829]: [yarnd] 2024/07/25 01:37:39 (162.211.155.2) "GET /twt/112135496802692324 HTTP/1.1" 400 12 826.65µs
Jul 25 01:37:40 buc.ci yarnd[829]: [yarnd] 2024/07/25 01:37:40 (51.222.253.14) "GET /conv/muttriq HTTP/1.1" 200 36881 20.448309ms
Jul 25 01:37:40 buc.ci yarnd[829]: [yarnd] 2024/07/25 01:37:40 (162.211.155.2) "GET /twt/112730114943543514 HTTP/1.1" 400 12 663.493µs
Jul 25 01:37:40 buc.ci yarnd[829]: [yarnd] 2024/07/25 01:37:40 (27.75.213.253) "GET /external?nick=lovetocode999&uri=http%3A%2F%2Falfarah.jo%2FHome%2FChangeCulture%3FlangCode%3Den>
Jul 25 01:37:40 buc.ci yarnd[829]: time="2024-07-25T01:37:40Z" level=error msg="http://bynet.com.br/log_envio.asp?cod=335&email=%21%2AEMAIL%2A%21&url=https%3A%2F%2Fwww.almanacar.c>
Jul 25 01:37:40 buc.ci yarnd[829]: [yarnd] 2024/07/25 01:37:40 (162.211.155.2) "GET /twt/111674756400660911 HTTP/1.1" 400 12 545.106µs
Jul 25 01:37:40 buc.ci yarnd[829]: time="2024-07-25T01:37:40Z" level=warning msg="feed FetchFeedRequest: @<lovetocode999 http://alfarah.jo/Home/ChangeCulture?langCode=en&returnUrl>
Jul 25 01:37:41 buc.ci yarnd[829]: [yarnd] 2024/07/25 01:37:41 (162.211.155.2) "GET /twt/112507964696096567 HTTP/1.1" 400 12 838.946µs

Something really weird is going on?

I deleted them all right before I sent my previous message, and already, a few minutes later, there are two more:

abucci@buc:~$ du -sh /tmp/yarnd-avatar-3*
1.8G    /tmp/yarnd-avatar-3122347915
2.4G    /tmp/yarnd-avatar-3533381443

What is this?

@prologic@twtxt.net This is weird, but today, out of nowhere, yarnd filled up the disk on the VPS where I run it. It’s never done anything like this before and I have no idea why it would start. But it threw almost 700 Gbytes of data into /tmp in files like this:

yarnd-avatar-1087570772  yarnd-avatar-1599127133  yarnd-avatar-2042956376  yarnd-avatar-2562946212  yarnd-avatar-3274766535  yarnd-avatar-3931929859  yarnd-avatar-553201529
yarnd-avatar-1089125452  yarnd-avatar-1606826819  yarnd-avatar-2089122560  yarnd-avatar-2611944556  yarnd-avatar-3310922372  yarnd-avatar-3938996661  yarnd-avatar-556240195
yarnd-avatar-1101228867  yarnd-avatar-1618755765  yarnd-avatar-2104107259  yarnd-avatar-2641384948  yarnd-avatar-3326285269  yarnd-avatar-3939402047  yarnd-avatar-559344463
yarnd-avatar-1112165824  yarnd-avatar-1650827505  yarnd-avatar-2142824779  yarnd-avatar-2680659340  yarnd-avatar-3340682113  yarnd-avatar-3998621883  yarnd-avatar-570292705
yarnd-avatar-1119886894  yarnd-avatar-1656673647  yarnd-avatar-2160786463  yarnd-avatar-271923479   yarnd-avatar-3374584613  yarnd-avatar-4005102536  yarnd-avatar-595490106
yarnd-avatar-1131417623  yarnd-avatar-1685698239  yarnd-avatar-2165405940  yarnd-avatar-2793562275  yarnd-avatar-3380606954  yarnd-avatar-4016872095  yarnd-avatar-679251850
yarnd-avatar-1160959085  yarnd-avatar-1746759128  yarnd-avatar-2171489899  yarnd-avatar-2842068287  yarnd-avatar-3416352997  yarnd-avatar-4110048378  yarnd-avatar-679950970
yarnd-avatar-1231649265  yarnd-avatar-1752278279  yarnd-avatar-2251317422  yarnd-avatar-2843868670  yarnd-avatar-3468636088  yarnd-avatar-4116552474  yarnd-avatar-737874628

164 files. Some are empty, some are 7 or even 10 Gbyte.

Any idea what would cause that? And why now, after running yarnd for so long with nothing like this happening?

@prologic@twtxt.net hey testing a rebuild of yarnd

Hmm…

Jun 19 23:31:38 yarn_init.sh[61567]: [yarnd] 2024/06/19 23:31:38 (127.0.0.1:40254) “POST /post HTTP/
1.0” 200 0 3.402208ms
[…]

Jun 19 23:31:39 yarn_init.sh[61567]: [yarnd] 2024/06/19 23:31:39 (127.0.0.1:40262) “GET /post HTTP/1.0” 404 729 123.474001ms

I just “published” a #draft on my blog about “How I’ve implemented #webmentions for twtxt” (http://darch.dk/mentions-twtxt), so I wanted to know from you guys if you see yourself doing a similar thing with yarnd @prologic@twtxt.net or others with custom setups?

It not that easy @xuu@txt.sour.is since I implemented webmentions in a different way that how it have been done in yarnd to work with txt-files. You can find the code in webmention_endpoint.php and new_twt.php at main · sorenpeter/timeline

Also made a webfinger lookup resolver that works with my own webfinger endpoint as well as yarnd servers:
http://darch.dk/wf-lookup.php

Image

Image

yarnd does not do auto discovery via webfinger though.. i cant put @username and have it fetch the feed url from webfinger. to fully make feeds portable. would also need to be able to use that for hashing.

I’m also more in favor of #reposts being human readable and writable. A client might implement a bottom that posts something simple like: #repost Look at this cool stuff, because bla bla [alt](url)

This will then make it possible to also “repost” stuff from other platforms/protocols.

The reader part of a client, can then render a preview of the link, which we talked about would be a nice (optional) feature to have in yarnd.

@prologic@twtxt.net finally updated yarnd.. FORK!? Awesome!