# HG changeset patch
# User Stephen Paul Weber <singpolyma@singpolyma.net>
# Date 1755033230 18000
# Node ID 52bd0ac397b52637192700433f65fd60800bdcc1
# Parent  4fd1ad56176bb47f39e463a74227f4927272a1f5
mod_muc_restrict_status: create new module

Allows stripping "status" messages that may contain offensive content from non-members of a MUC

diff -r 4fd1ad56176b -r 52bd0ac397b5 mod_muc_restrict_status/mod_muc_restrict_status.lua
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mod_muc_restrict_status/mod_muc_restrict_status.lua	Tue Aug 12 16:13:50 2025 -0500
@@ -0,0 +1,68 @@
+module:depends"muc";
+
+local restrict_by_default = module:get_option_boolean("muc_room_default_restrict_status", true);
+
+local function should_restrict_status(room)
+	local restrict_status = room._data.restrict_status;
+	if restrict_status == nil then
+		restrict_status = restrict_by_default;
+	end
+	return restrict_status;
+end
+
+module:hook("muc-config-form", function(event)
+	local room, form = event.room, event.form;
+	table.insert(form, {
+		name = "{xmpp:prosody.im}muc#roomconfig_unaffiliated_status",
+		type = "boolean",
+		label = "Display status message from non-members",
+		value = not should_restrict_status(room),
+	});
+end);
+
+module:hook("muc-config-submitted", function(event)
+	local room, fields, changed = event.room, event.fields, event.changed;
+	local new_restrict_status = not fields["{xmpp:prosody.im}muc#roomconfig_unaffiliated_status"];
+	if new_restrict_status ~= should_restrict_status(room) then
+		if new_restrict_status == restrict_by_default then
+			room._data.restrict_status = nil;
+		else
+			room._data.restrict_status = new_restrict_status;
+		end
+		if type(changed) == "table" then
+			changed["{xmpp:prosody.im}muc#roomconfig_unaffiliated_status"] = true;
+		else
+			event.changed = true;
+		end
+	end
+end);
+
+module:hook("muc-disco#info", function (event)
+	local room, form, formdata = event.room, event.form, event.formdata;
+
+	local allow_unaffiliated_status = not should_restrict_status(room);
+	table.insert(form, {
+		name = "{xmpp:prosody.im}muc#roomconfig_unaffiliated_status",
+		type = "boolean",
+	});
+	formdata["{xmpp:prosody.im}muc#roomconfig_unaffiliated_status"] = allow_unaffiliated_status;
+end);
+
+local function filter_status_tags(tag)
+	if tag.name == "status" then
+		return nil;
+	end
+	return tag;
+end
+
+local function thehook(event)
+	local stanza = event.stanza;
+	if event.room:get_affiliation(stanza.attr.from) then return end
+	if should_restrict_status(event.room) then
+		stanza:maptags(filter_status_tags);
+	end
+end
+
+module:hook("muc-occupant-pre-join", thehook, 20);
+module:hook("muc-occupant-pre-leave", thehook, 20);
+module:hook("muc-occupant-pre-change", thehook, 20);