File

plugins/mod_vcard4.lua @ 13126:d043834f15d2

mod_http: Use RFC 7239 Forwarded header to find original client IP Prefer over X-Forwarded-* since it has an actual specification. Main practical difference is that Forwarded may carry more properties than only the IP address since it is a structured header. Since we parse it into an array, it is easier to do the logical thing and iterate backwards trough proxies until an untrusted one is encountered. Compare the handling of X-Forwarded-For. The 'secure' field now accounts for the full chain of proxies, which must be secure all the way to be considered secure.
author Kim Alvefur <zash@zash.se>
date Sat, 03 Jun 2023 17:10:04 +0200
parent 12977:74b9e05af71e
line wrap: on
line source

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

local mod_pep = module:depends("pep");

module:hook("account-disco-info", function (event)
	event.reply:tag("feature", { var = "urn:ietf:params:xml:ns:vcard-4.0" }):up();
end);

module:hook("iq-get/bare/urn:ietf:params:xml:ns:vcard-4.0:vcard", function (event)
	local origin, stanza = event.origin, event.stanza;

	local pep_service = mod_pep.get_pep_service(jid_split(stanza.attr.to) or origin.username);
	local ok, id, item = pep_service:get_last_item("urn:xmpp:vcard4", stanza.attr.from);
	if ok and item then
		origin.send(st.reply(stanza):add_child(item.tags[1]));
	elseif id == "item-not-found" or not id then
		origin.send(st.error_reply(stanza, "cancel", "item-not-found"));
	elseif id == "forbidden" then
		origin.send(st.error_reply(stanza, "auth", "forbidden"));
	else
		origin.send(st.error_reply(stanza, "modify", "undefined-condition"));
	end
	return true;
end);

module:hook("iq-set/self/urn:ietf:params:xml:ns:vcard-4.0:vcard", function (event)
	local origin, stanza = event.origin, event.stanza;

	local vcard4 = st.stanza("item", { xmlns = "http://jabber.org/protocol/pubsub", id = "current" })
		:add_child(stanza.tags[1]);

	local pep_service = mod_pep.get_pep_service(origin.username);

	local ok, err = pep_service:publish("urn:xmpp:vcard4", origin.full_jid, "current", vcard4);
	if ok then
		origin.send(st.reply(stanza));
	elseif err == "forbidden" then
		origin.send(st.error_reply(stanza, "auth", "forbidden"));
	else
		origin.send(st.error_reply(stanza, "modify", "undefined-condition", err));
	end
	return true;
end);