view mod_compat_vcard/mod_compat_vcard.lua @ 3656:3e0f4d727825

mod_vcard_muc: Add an alternative method of signaling avatar change When the avatar has been changed, a signal is sent that the room configuration has changed. Clients then do a disco#info query to find the SHA-1 of the new avatar. They can then fetch it as before, or not if they have it cached already. This is meant to be less disruptive than signaling via presence, which caused problems for some clients. If clients transition to the new method, the old one can eventually be removed. The namespace is made up while waiting for standardization. Otherwise it is very close to what's described in https://xmpp.org/extensions/inbox/muc-avatars.html
author Kim Alvefur <zash@zash.se>
date Sun, 25 Aug 2019 20:46:43 +0200
parents 3df303543765
children
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-- Compatibility with clients and servers (i.e. ejabberd) that send vcard
-- requests to the full JID
--
-- https://support.process-one.net/browse/EJAB-1045

local jid_bare = require "util.jid".bare;
local st = require "util.stanza";
local core_process_stanza = prosody.core_process_stanza;

module:hook("iq/full", function(event)
	local stanza = event.stanza;
	local payload = stanza.tags[1];
	if payload and stanza.attr.type == "get" and payload.name == "vCard" and payload.attr.xmlns == "vcard-temp" then
		local fixed_stanza = st.clone(event.stanza);
		fixed_stanza.attr.to = jid_bare(stanza.attr.to);
		core_process_stanza(event.origin, fixed_stanza);
		return true;
	end
end, 1);