view mod_limit_auth/mod_limit_auth.lua @ 6214:cc5c0f1dc89b

mod_muc_anonymize_moderation_actions: Fix mentioning Virtualhost for MUC, Compatibility section and License. diff --git a/mod_muc_anonymize_moderation_actions/README.md b/mod_muc_anonymize_moderation_actions/README.md --- a/mod_muc_anonymize_moderation_actions/README.md +++ b/mod_muc_anonymize_moderation_actions/README.md @@ -1,8 +1,10 @@ -<!-- -SPDX-FileCopyrightText: 2024 John Livingston <https://www.john-livingston.fr/> -SPDX-License-Identifier: AGPL-3.0-only ---> -# mod_muc_anonymize_moderation_actions +--- +labels: +- 'Stage-Alpha' +summary: Anonymize moderator actions for participants +--- + +## Introduction This modules allows to anonymize affiliation and role changes in MUC rooms. @@ -11,13 +13,10 @@ When the feature is enabled, when a mode This is particularly usefull to prevent some revenge when a moderator bans someone. -This module is under AGPL-3.0 license. - -It was tested on Prosody 0.12.x. ## Configuration -Just enable the module on your MUC VirtualHost. +Just enable the module on your MUC Component. The feature will be accessible throught the room configuration form. You can tweak the position of the settings in the MUC configuration form using `anonymize_moderation_actions_form_position`. @@ -26,7 +25,20 @@ This value will be passed as priority fo By default, the field will be between muc#roomconfig_changesubject and muc#roomconfig_moderatedroom (default value is `78`). ``` lua -VirtualHost "muc.example.com" +Component "muc.example.com" "muc" modules_enabled = { "muc_anonymize_moderation_actions" } anonymize_moderation_actions_form_position = 96 ``` + +## Compatibility + + ------ ---------------------- + trunk Works as of 25-05-12 + 0.13 Works + 0.12 Works + ------ ---------------------- + +### License + +SPDX-FileCopyrightText: 2024 John Livingston <https://www.john-livingston.fr/> +SPDX-License-Identifier: AGPL-3.0-only
author Menel <menel@snikket.de>
date Mon, 12 May 2025 10:42:26 +0200
parents 2a5a44d5b935
children
line wrap: on
line source

-- mod_limit_auth

local st = require"util.stanza";
local new_throttle = require "util.throttle".create;

local period = math.max(module:get_option_number(module.name.."_period", 30), 0);
local max = math.max(module:get_option_number(module.name.."_max", 5), 1);

local tarpit_delay = module:get_option_number(module.name.."_tarpit_delay", nil);
if tarpit_delay then
	local waiter = require "util.async".waiter;
	local delay = tarpit_delay;
	function tarpit_delay()
		local wait, done = waiter();
		module:add_timer(delay, done);
		wait();
	end
else
	function tarpit_delay() end
end

local throttles = module:shared"throttles";

local reply = st.stanza("failure", { xmlns = "urn:ietf:params:xml:ns:xmpp-sasl" }):tag("temporary-auth-failure");

local function get_throttle(ip)
	local throttle = throttles[ip];
	if not throttle then
		throttle = new_throttle(max, period);
		throttles[ip] = throttle;
	end
	return throttle;
end

module:hook("stanza/urn:ietf:params:xml:ns:xmpp-sasl:auth", function (event)
	local origin = event.origin;
	if origin.type ~= "c2s_unauthed" then return end
	if not get_throttle(origin.ip):peek(1) then
		origin.log("warn", "Too many authentication attepmts for ip %s", origin.ip);
		tarpit_delay();
		origin.send(reply);
		return true;
	end
end, 10);

module:hook("authentication-failure", function (event)
	get_throttle(event.session.ip):poll(1);
end);

module:add_timer(14400, function (now)
	local old = now - 86400;
	for ip, throttle in pairs(throttles) do
		if throttle.t < old then
			throttles[ip] = nil;
		end
	end
end);