view mod_muc_restrict_media/mod_muc_restrict_media.lua @ 5139:449e4ca4de32

mod_unified_push: Remove dependency on trunk util.jwt (0.12 compat) This should allow the module to work on 0.12, while preserving expiry checking (which was not built in to 0.12's util.jwt).
author Matthew Wild <mwild1@gmail.com>
date Tue, 10 Jan 2023 16:34:21 +0000
parents 5a3031613dbc
children 1682166171ff
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module:depends"muc";

local restrict_by_default = module:get_option_boolean("muc_room_default_restrict_media", true);

local function should_restrict_media(room)
	local restrict_media = room._data.restrict_media;
	if restrict_media == nil then
		restrict_media = restrict_by_default;
	end
	return restrict_media;
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_media",
		type = "boolean",
		label = "Display inline media (images, etc.) from non-members",
		value = not should_restrict_media(room),
	});
end);

module:hook("muc-config-submitted", function(event)
	local room, fields, changed = event.room, event.fields, event.changed;
	local new_restrict_media = not fields["{xmpp:prosody.im}muc#roomconfig_unaffiliated_media"];
	if new_restrict_media ~= should_restrict_media(room) then
		if new_restrict_media == restrict_by_default then
			room._data.restrict_media = nil;
		else
			room._data.restrict_media = new_restrict_media;
		end
		if type(changed) == "table" then
			changed["{xmpp:prosody.im}muc#roomconfig_unaffiliated_media"] = 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_media = not should_restrict_media(room);
	table.insert(form, {
		name = "{xmpp:prosody.im}muc#roomconfig_unaffiliated_media",
		type = "boolean",
	});
	formdata["{xmpp:prosody.im}muc#roomconfig_unaffiliated_media"] = allow_unaffiliated_media;
end);

local function filter_media_tags(tag)
	local xmlns = tag.attr.xmlns;
	if xmlns == "jabber:x:oob" then
		return nil;
	elseif xmlns == "urn:xmpp:reference:0" then
		if tag:get_child("media-sharing", "urn:xmpp:sims:1") then
			return nil;
		end
	end
	return tag;
end

module:hook("muc-occupant-groupchat", function (event)
	local stanza = event.stanza;
	if stanza.attr.type ~= "groupchat" then return; end
	if event.room:get_affiliation(stanza.attr.from) then return end
	if should_restrict_media(event.room) then
		stanza:maptags(filter_media_tags);
	end
end, 20);