Software /
code /
prosody
File
plugins/muc/occupant_id.lib.lua @ 12493:e9ea5c88def0
mod_s2s: Don't bounce queued error stanzas (thanks Martin)
The check for the type attr was lost in 11765f0605ec leading to attempts
to create error replies for error stanzas, which util.stanza rejects.
Tested by sending
<message to="reject.badxmpp.eu" type="error"><error/></message>
which produced a traceback previously.
author | Kim Alvefur <zash@zash.se> |
---|---|
date | Sat, 07 May 2022 13:01:49 +0200 |
parent | 12108:e9882c4c397f |
child | 12977:74b9e05af71e |
line wrap: on
line source
-- Implementation of https://xmpp.org/extensions/inbox/occupant-id.html -- XEP-0421: Anonymous unique occupant identifiers for MUCs -- (C) 2020 Maxime “pep” Buquet <pep@bouah.net> -- (C) 2020 Matthew Wild <mwild1@gmail.com> local uuid = require "util.uuid"; local hmac_sha256 = require "util.hashes".hmac_sha256; local b64encode = require "util.encodings".base64.encode; local xmlns_occupant_id = "urn:xmpp:occupant-id:0"; local function get_room_salt(room) local salt = room._data.occupant_id_salt; if not salt then salt = uuid.generate(); room._data.occupant_id_salt = salt; end return salt; end local function get_occupant_id(room, occupant) if occupant.stable_id then return occupant.stable_id; end local salt = get_room_salt(room) occupant.stable_id = b64encode(hmac_sha256(occupant.bare_jid, salt)); return occupant.stable_id; end local function update_occupant(event) local stanza, room, occupant, dest_occupant = event.stanza, event.room, event.occupant, event.dest_occupant; -- "muc-occupant-pre-change" provides "dest_occupant" but not "occupant". if dest_occupant ~= nil then occupant = dest_occupant; end -- strip any existing <occupant-id/> tags to avoid forgery stanza:remove_children("occupant-id", xmlns_occupant_id); local unique_id = get_occupant_id(room, occupant); stanza:tag("occupant-id", { xmlns = xmlns_occupant_id, id = unique_id }):up(); end local function muc_private(event) local stanza, room = event.stanza, event.room; local occupant = room._occupants[stanza.attr.from]; update_occupant({ stanza = stanza, room = room, occupant = occupant, }); end if module:get_option_boolean("muc_occupant_id", true) then module:add_feature(xmlns_occupant_id); module:hook("muc-disco#info", function (event) event.reply:tag("feature", { var = xmlns_occupant_id }):up(); end); module:hook("muc-broadcast-presence", update_occupant); module:hook("muc-occupant-pre-join", update_occupant); module:hook("muc-occupant-pre-change", update_occupant); module:hook("muc-occupant-groupchat", update_occupant); module:hook("muc-private-message", muc_private); end return { get_room_salt = get_room_salt; get_occupant_id = get_occupant_id; };