Modern XMPP project discussion - 2023-08-07

does anyone have a link for creating qr codes for xmpp jids (for contact exchange)?

i can't seem to find anything on the web

would probably make sense to put in the modern xmpp docs

most messengers allow using qr codes now. and i found that when using e.g. the qr code in conversations, it includes an omemo prekey, which makes initial encrypted messaging so much more reliable

> does anyone have a link for creating qr codes for xmpp jids (for contact exchange)? I would imagine any QR code generator will work. You're just encoding the text of your JID into a QR code ↺

You need to make it an URI, e.g. like xmpp:alice@example.net

There is also https://github.com/ge0rg/easy-xmpp-invitation

> I would imagine any QR code generator will work. You're just encoding the text of your JID into a QR code the question is not how to create a qr code in the first place, but what the content should be and which apps would support what ↺

especially when it comes to the omemo part for example

i think the coolest thing i've seen was that apps on ios can register as handlers for specific QR code content somehow (URI maybe), so the normal camera app will offer to open XMPP QRs in e.g. snikket

afaik that's not specific to ios, the qr code is translated to an xmpp uri like xmpp:user@domain.tld and if you already have an xmpp client installed, it's used to open links like that

Yes, works on Android as well with my app. It prompts to open conversations

which android is that

with mine i can use the normal share/open dialog, but it won't automatically prompt for opening it with my xmpp client

the point is that the ios user doesn't have to know what app to open it with

might just be my degoogled android phone's camera app tho. hence the question which android distro does it ✏

I use a Barcode share app, and when I share the scan result it prompts xmpp messanger

*Barcode scan app

It just seems android knows what it is, because it prompts the xmpp messanger if you share a result like: xmpp:alice@example.net

that would depend on what the qrcode scanning app does

No. If you share something, it depends on the content what app did register for it. Not the app sharing it. If you share a picture with "whatever" you will get suggestions for everything that registered for pictures

you seem to miss my point

there is no need to share on ios

flash your built-in camera app at an xmpp qr code, it will literally show you a notification for snikket to open it

no button press, nothing, just one to open it directly

That's nice

That works only for scans from the xmpp apps themselfs on Android

raucao: just upload the url code to a qrcode decoder that won't act on it. That or you might be able to copy the url from your phone too. Then since it's just a url, you should be able to see how it's constructed including the omemo pre-key thing you mentioned

i think this is the one i've used in the past https://qrcode-decoder.com/

yeah, i already looked a that, but i tried to find docs on standard formats

maybe the prekeyo argument is part of some xep?

It _should_ be

:)

I don't see it tho

So I guess it's another of those thing where everyone just does what the leading implementation does

But then, all of OMEMO is like that :(

Zash: can we make sure MLS isn't that way? :-D