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mod_muc_offline_delivery/mod_muc_offline_delivery.lua @ 5193:2bb29ece216b
mod_http_oauth2: Implement stateless dynamic client registration
Replaces previous explicit registration that required either the
additional module mod_adhoc_oauth2_client or manually editing the
database. That method was enough to have something to test with, but
would not probably not scale easily.
Dynamic client registration allows creating clients on the fly, which
may be even easier in theory.
In order to not allow basically unauthenticated writes to the database,
we implement a stateless model here.
per_host_key := HMAC(config -> oauth2_registration_key, hostname)
client_id := JWT { client metadata } signed with per_host_key
client_secret := HMAC(per_host_key, client_id)
This should ensure everything we need to know is part of the client_id,
allowing redirects etc to be validated, and the client_secret can be
validated with only the client_id and the per_host_key.
A nonce injected into the client_id JWT should ensure nobody can submit
the same client metadata and retrieve the same client_secret
author | Kim Alvefur <zash@zash.se> |
---|---|
date | Fri, 03 Mar 2023 21:14:19 +0100 |
parent | 4780:4abb33a15897 |
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local st = require "util.stanza"; local default_enable = module:get_option_boolean("muc_offline_delivery_default", false); module:add_item("muc-registration-field", { name = "offline_delivery"; var = "{http://tigase.org/protocol/muc}offline"; type = "boolean"; label = "Receive messages while not connected to the room"; value = default_enable; }); module:hook("muc-registration-submitted", function (event) local deliver_offline = event.submitted_data.offline_delivery; event.affiliation_data.offline_delivery = deliver_offline; end); module:hook("muc-add-history", function (event) module:log("debug", "Broadcasting message to offline occupants..."); local sent = 0; local room = event.room; for jid, affiliation, data in room:each_affiliation() do --luacheck: ignore 213/affiliation local reserved_nickname = data and data.reserved_nickname; local user_setting = data and data.offline_delivery or nil; if reserved_nickname and (user_setting or (user_setting == nil and default_enable)) then local is_absent = not room:get_occupant_by_nick(room.jid.."/"..reserved_nickname); if is_absent then module:log("debug", "Forwarding message to offline member <%s>", jid); local msg = st.clone(event.stanza); msg.attr.to = jid; module:send(msg); sent = sent + 1; end end end if sent > 0 then module:log("debug", "Sent message to %d offline occupants", sent); end end);