snapshot of https://github.com/jitsi/jitsi-meet.git @ fd1749dd28f4138aa80234fc7f311b19aaffa0e7 (2026-09-15)

resources/prosody-plugins/mod_s2s_whitelist.lua

@@ -0,0 +1,26 @@
+-- Using as a base version https://hg.prosody.im/prosody-modules/file/c1a8ce147885/mod_s2s_whitelist/mod_s2s_whitelist.lua
+local st = require "util.stanza";
+
+local whitelist = module:get_option_inherited_set("s2s_whitelist", {});
+
+module:hook("route/remote", function (event)
+	if not whitelist:contains(event.to_host) then
+	    -- make sure we do not send error replies for errors
+        if event.stanza.attr.type == 'error' then
+            module:log('debug', 'Not whitelisted destination domain for an error: %s', event.stanza);
+            return true;
+        end
+
+		module:send(st.error_reply(event.stanza, "cancel", "not-allowed", "Communication with this domain is restricted"));
+		return true;
+	end
+end, 100);
+
+module:hook("s2s-stream-features", function (event)
+	if not whitelist:contains(event.origin.from_host) then
+		event.origin:close({
+			condition = "policy-violation";
+			text = "Communication with this domain is restricted";
+		});
+	end
+end, 1000);