File

plugins/mod_vcard.lua @ 12115:94de6b7596cc

mod_tombstones: Remember deleted accounts #1307 Presence subscriptions are normally revoked on account deletion, which informs the contact. Sometimes this notification gets lost e.g. due to s2s problems. The accounts JID may also be present e.g. in MUC affiliations, chat group member lists, pubsub subscriptions or other systems. These may grant privileges which would fall to someone who creates the same account again, which this module is meant to prevent.
author Kim Alvefur <zash@zash.se>
date Thu, 23 Dec 2021 14:08:20 +0100
parent 10552:f1cf8c08a09d
child 12977:74b9e05af71e
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-- Prosody IM
-- Copyright (C) 2008-2010 Matthew Wild
-- Copyright (C) 2008-2010 Waqas Hussain
--
-- This project is MIT/X11 licensed. Please see the
-- COPYING file in the source package for more information.
--

local st = require "util.stanza"
local jid_split = require "util.jid".split;

local vcards = module:open_store();

module:add_feature("vcard-temp");

local function handle_vcard(event)
	local session, stanza = event.origin, event.stanza;
	local to = stanza.attr.to;
	if stanza.attr.type == "get" then
		local vCard;
		if to then
			local node = jid_split(to);
			vCard = st.deserialize(vcards:get(node)); -- load vCard for user or server
		else
			vCard = st.deserialize(vcards:get(session.username));-- load user's own vCard
		end
		if vCard then
			session.send(st.reply(stanza):add_child(vCard)); -- send vCard!
		else
			session.send(st.error_reply(stanza, "cancel", "item-not-found"));
		end
	else -- stanza.attr.type == "set"
		if not to then
			if vcards:set(session.username, st.preserialize(stanza.tags[1])) then
				session.send(st.reply(stanza));
			else
				-- TODO unable to write file, file may be locked, etc, what's the correct error?
				session.send(st.error_reply(stanza, "wait", "internal-server-error"));
			end
		else
			session.send(st.error_reply(stanza, "auth", "forbidden"));
		end
	end
	return true;
end

module:hook("iq/bare/vcard-temp:vCard", handle_vcard);
module:hook("iq/host/vcard-temp:vCard", handle_vcard);