view mod_muc_hide_media/mod_muc_hide_media.lua @ 4537:53ee391ca689

mod_smacks: Fix traceback due to session being destroyed in send() Sending something can cause the OS to notice that the connection is dead and then the connection can be dead at this point. More likely if opportunistic_writes is enabled.
author Kim Alvefur <zash@zash.se>
date Thu, 01 Apr 2021 11:35:26 +0200
parents 65e94270c413
children 9084588c73ae
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module:depends"muc";

local hide_by_default = not module:get_option_boolean("muc_room_default_hide_media", false);

local function should_hide_media(room)
	local hide_media = room._data.hide_media;
	if hide_media == nil then
		hide_media = hide_by_default;
	end
	return hide_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_display_media",
		type = "boolean",
		label = "Display inline media (images, etc.)",
		value = not should_hide_media(room),
	});
end);

module:hook("muc-config-submitted", function(event)
	local room, fields, changed = event.room, event.fields, event.changed;
	local new_hide_media = not fields["{xmpp:prosody.im}muc#roomconfig_display_media"];
	if new_hide_media ~= should_hide_media(room) then
		if new_hide_media == hide_by_default(room) then
			room._data.hide_media = nil;
		else
			room._data.hide_media = new_hide_media;
		end
		if type(changed) == "table" then
			changed["{xmpp:prosody.im}muc#roomconfig_display_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 display_media = not should_hide_media(room);
	table.insert(form, {
		name = "{xmpp:prosody.im}muc#roomconfig_display_media",
	});
	formdata["{xmpp:prosody.im}muc#roomconfig_display_media"] = display_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 should_hide_media(event.room) then
		stanza:maptags(filter_media_tags);
	end
end, 20);