prosody-modules
cc665f343690
mod_block_s2s_subscriptions/mod_block_s2s_subscriptions.lua

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mod_block_s2s_subscriptions/mod_block_s2s_subscriptions.lua @ 6057:cc665f343690

mod_firewall: SUBSCRIBED: Flip subscription check to match documentation The documentation claims that this condition checks whether the recipient is subscribed to the sender. However, it was using the wrong method, and actually checking whether the sender was subscribed to the recipient. A quick poll of folk suggested that the documentation's approach is the right one, so this should fix the code to match the documentation. This should also fix the bundled anti-spam rules from blocking presence from JIDs that you subscribe do (but don't have a mutual subscription with).
author Matthew Wild <mwild1@gmail.com>
date Fri, 22 Nov 2024 13:50:48 +0000
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