jdev - 2023-01-09

Hi, what is the state of the art do to multi-party A/V conference nowadays? I guess it's Jitsi Video Bridge + XEP-0340 (COLIBRI), right? MUJI seems nice only for a few participants, it doesn't scale. I think I've seen a post about a new solution on ActivityPub recently, but can't find it again. Anything else?

goffi: you want to speak to the Dino devs

@goffi Tigase Meet (https://fosstodon.org/@tigase/109541234847184884) ?

Where's the XMPP chit chat groupchat?

xmpp:conversations-offtopic-reloaded@conference.trashserver.net?join

https://search.jabber.network/rooms/1

MattJ, Wojtek: thanks

Thank you menel

hello

when i get a vCard like this https://xmpp.org/extensions/xep-0054.html what is the difference between a vCard element that isn't included at all, and a vCard element that is empty?

or rather, what should the client do in those 2 situations when receiving a vCard from the server

hm, is this theoretical?

what do you mean?

the server should return a vcard element i think

there is no difference, but i would be very suprised if the server answers without vcard child element of the IQ

yes, the server is returning a vCard, but some elements inside the vCard are missing

ah with vcard element you mean vcard properties

i thought you mean the vCard node

there is no difference

oh yeah. sorry, i am not an xml expert 😀

i would say

you need to expect that every element is missing

or empty

im not aware that an empty element has another meaning then a missing one

lovetox, a <PHOTO> element can be for example <PHOTO/> which means there is no photo in the vCard, or the vCard can contain absolutely no PHOTO child

i am asking what should the client do in these 2 situations

show no photo

because you dont have one ..

what do you want to do?

im not seeing the options here? if i think about it nothing other then showing no photo in the two cases comes to mind

what should the client do if there's multiple <PHOTO> elements?

show multiple photos or choose one

https://xmpp.org/extensions/xep-0054.html#dtd

what does the question mark mean?

i think it means the element can be missing or it can be there once

but google XML DTD and see for yourself

lovetox, i appreciate your help, but i was hoping someone could point to a paragraph in a xep which can explain what should the client do in that situation

im not getting what you expecting here

what options are there?

if you have 10 things which you could do, then i see how you want something that tells you which to do

but you received a photo with no vcard photo data

what other option do you have than showing NO photo to the user? ✏

i see your point, but i don't see where in the xep it says that an empty element is equivalent to missing element in the vCard

i think nobody thought it would be necessary

i am going to send an e-mail to Peter

the author to xep-0153

techmetx11, upon further inspection of the DTD, a vCard can indeed have multiple PHOTO elements

i guess that question will be for the next e-mail 😀

again, what do you expect as an answer?

XMPP is a transfer protocol

It does not dictate how you present data to the user in a graphical user interface

you receive 10 photos, no XEP will tell you what to do

i don't know. i'll see what Peter says

i guess in the case of multiple photo elements, the xep says you can see which "resource" has which photo by sha1 (a jid can have multiple "resources")

i hope a jid can't have multiple vCards 😀

i think you are going down a rabbit hole

the vCard spec is endless

you should ask what other clients support, not what theoretically the vCard spec allows

and you will not find a client who will display more than one photo

you will not find a client who publishes more than one photo

Yeah, a bit pragmatism