prosody-modules
96dec7681af8
mod_block_s2s_subscriptions/mod_block_s2s_subscriptions.lua

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Software / code / prosody-modules

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mod_block_s2s_subscriptions/mod_block_s2s_subscriptions.lua @ 5536:96dec7681af8

mod_firewall: Update user marks to store instantly via map store The original approach was to keep marks in memory only, and persist them at shutdown. That saves I/O, at the cost of potentially losing marks on an unclean shutdown. This change persists marks instantly, which may have some performance overhead but should be more "correct". It also splits the marking/unmarking into an event which may be watched or even fired by other modules.
author Matthew Wild <mwild1@gmail.com>
date Thu, 08 Jun 2023 16:20:42 +0100
parent 775:70ff25db37fa
line wrap: on
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local jid_split = require "util.jid".split;
local jid_bare = require "util.jid".bare;
local load_roster = require "core.rostermanager".load_roster;

local blocked_servers = module:get_option_set("block_s2s_subscriptions")._items;

function filter_presence(event)
	if blocked_servers[event.origin.from_host] and event.stanza.attr.type == "subscribe" then
		local stanza = event.stanza;
		local to_user, to_host = jid_split(stanza.attr.to);
		local roster = load_roster(to_user, to_host);
		if roster and roster[jid_bare(stanza.attr.from)] then
			return; -- In roster, pass through
		end
		return true; -- Drop
	end
end

module:hook("presence/bare", filter_presence, 200); -- Client receiving