prosody-modules
2bb29ece216b
mod_support_room/mod_support_room.lua

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mod_support_room/mod_support_room.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 3426:f72aa8840042
line wrap: on
line source

local mm = require "core.modulemanager";
local st = require "util.stanza";
local jid_host, jid_prep = import("util.jid", "host", "prep");

local invite_to_room = assert(jid_prep(module:get_option_string(module.name)),
	"The option " .. module.name .. " must be set");
local inviter = module:get_option_string(module.name .. "_inviter", module.host);
local invite_reason = module:get_option_string(module.name .. "_reason");

module:hook("user-registered", function (event)
	local user_jid = event.username .. "@" .. event.host;
	local muc = mm.get_module(jid_host(invite_to_room), "muc");
	if not muc then
		module:log("error", "There is no MUC service '%s'", jid_host(invite_to_room));
		return;
	end
	local room = muc.get_room_from_jid(invite_to_room);
	if room then
		room:set_affiliation(true, user_jid, "member", invite_reason, { reserved_nickname = event.username });
		-- Invite them to the room too
		module:send(st.message({ from = inviter, to = user_jid })
			:tag("x", { xmlns = "jabber:x:conference", jid = invite_to_room, reason = invite_reason }):up());
	else
		module:log("error", "The room %s does not exist, can't invite newly registered user", invite_to_room);
	end
end);