prosody-modules
dec4b2e31d1c
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 @ 5086:dec4b2e31d1c

mod_rest: Do not allow replies to <iq type=result> from webhooks Replying to a result stanza could cause loops, just as replying to an error. No stanza.name check here but it should be fine since no other kinds of stanzas have type=result, and the boolean logic would most definitely be wrong on the first attempt.
author Kim Alvefur <zash@zash.se>
date Sun, 27 Nov 2022 00:10:38 +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