view mod_muc_defaults/mod_muc_defaults.lua @ 4651:8231774f5bfd

mod_cloud_notify_encrypted: Ensure body substring remains valid UTF-8 The `body:sub()` call risks splitting the string in the middle of a multi-byte UTF-8 sequence. This should have been caught by util.stanza validation, but that would have caused some havoc, at the very least causing the notification to not be sent. There have been no reports of this happening. Likely because this module isn't widely deployed among users with languages that use many longer UTF-8 sequences. The util.encodings.utf8.valid() function is O(n) where only the last sequence really needs to be checked, but it's in C and expected to be fast.
author Kim Alvefur <zash@zash.se>
date Sun, 22 Aug 2021 13:22:59 +0200
parents a81516906822
children
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local log = module._log;
local params = module:get_option("default_mucs", {});
local jid_bare = require "util.jid".bare;


local function set_affiliations(room, affiliations)
	for affiliation, jids in pairs(affiliations) do
		for i, jid in pairs(jids) do
			module:log("debug", "Setting affiliation %s for jid %s", affiliation, jid);
			room:set_affiliation(true, jid_bare(jid), affiliation);
		end
	end
end


local function configure_room(room, config)
	local should_save = false;
	if config.name ~= nil then
		should_save = room:set_name(config.name) or should_save;
	end
	if config.description ~= nil then
		should_save = room:set_description(config.description) or should_save;
	end
	if config.allow_member_invites ~= nil then
		should_save =
			room:set_allow_member_invites(config.allow_member_invites)
			or should_save;
	end
	if config.change_subject ~= nil then
		should_save =
			room:set_changesubject(config.change_subject)
			or should_save;
	end
	if config.history_length ~= nil then
		should_save =
			room:set_historylength(config.history_length)
			or should_save;
	end
	if config.lang ~= nil then
		should_save = room:set_language(config.lang) or should_save;
	end
	if config.members_only ~= nil then
		should_save =
			room:set_members_only(config.members_only)
			or should_save;
	end
	if config.moderated ~= nil then
		should_save = room:set_moderated(config.moderated) or should_save;
	end
	if config.persistent ~= nil then
		should_save = room:set_persistent(config.persistent) or should_save;
	end
	if config.presence_broadcast ~= nil then
		should_save = room:set_presence_broadcast(config.presence_broadcast) or should_save;
	end
	if config.public ~= nil then
		should_save = room:set_hidden(not config.public) or should_save;
	end
	if config.public_jids ~= nil then
		should_save =
			room:set_whois(config.public_jids and "anyone" or "moderators")
			or should_save;
	end
	if config.logging ~= room._data.logging then
		room._data.logging = config.logging;
		should_save = true;
	end
	if should_save then
		room:save(true);
	end
end


local i, room_data;
for i, room_data in pairs(params) do
	local host = module.host;
	local room_jid = room_data.jid_node.."@"..host;
	local mod_muc = prosody.hosts[host].modules.muc;
	local room = mod_muc.get_room_from_jid(room_jid);
	if not room then
		module:log("debug", "Creating new room %s", room_jid);
		-- We don't pass in the config, so that the default config is set first.
		room = mod_muc.create_room(room_jid);
	else
		module:log("debug", "Configuring already existing room %s", room_jid);
	end
	configure_room(room, room_data.config);
	if room_data.affiliations then
		set_affiliations(room, room_data.affiliations);
	end
end