File

plugins/muc/request.lib.lua @ 11517:f7275c2c58fa

mod_c2s: Fix traceback if session was destroyed while opening stream (thanks Ge0rG) Could happen with the 'opportunistic_writes' setting, since then the stream opening is written directly to the socket, which can in turn trigger session destruction if the socket somehow got closed just after the other sent their stream header. Error happens later when it tries to `hosts[session.host == nil].events`
author Kim Alvefur <zash@zash.se>
date Wed, 14 Apr 2021 16:02:47 +0200
parent 9703:0cfb7b3593eb
child 12977:74b9e05af71e
line wrap: on
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-- Prosody IM
-- Copyright (C) 2008-2010 Matthew Wild
-- Copyright (C) 2008-2010 Waqas Hussain
-- Copyright (C) 2014 Daurnimator
--
-- This project is MIT/X11 licensed. Please see the
-- COPYING file in the source package for more information.
--

local st = require "util.stanza";
local jid_resource = require "util.jid".resource;

module:hook("muc-disco#info", function(event)
	event.reply:tag("feature", {var = "http://jabber.org/protocol/muc#request"}):up();
end);

local voice_request_form = require "util.dataforms".new({
	title = "Voice Request";
	{
		name = "FORM_TYPE";
		type = "hidden";
		value = "http://jabber.org/protocol/muc#request";
	},
	{
		name = "muc#jid";
		type = "jid-single";
		label = "User ID";
		desc = "The user's JID (address)";
	},
	{
		name = "muc#roomnick";
		type = "text-single";
		label = "Room nickname";
		desc = "The user's nickname within the room";
	},
	{
		name = "muc#role";
		type = "list-single";
		label = "Requested role";
		value = "participant";
		options = {
			"none",
			"visitor",
			"participant",
			"moderator",
		};
	},
	{
		name = "muc#request_allow";
		type = "boolean";
		label = "Grant voice to this person?";
		desc = "Specify whether this person is able to speak in a moderated room";
		value = false;
	}
});

local function handle_request(room, origin, stanza, form)
	local occupant = room:get_occupant_by_real_jid(stanza.attr.from);
	local fields = voice_request_form:data(form);
	local event = {
		room = room;
		origin = origin;
		stanza = stanza;
		fields = fields;
		occupant = occupant;
	};
	if occupant.role == "moderator" then
		module:log("debug", "%s responded to a voice request in %s", jid_resource(occupant.nick), room.jid);
		module:fire_event("muc-voice-response", event);
	else
		module:log("debug", "%s requested voice in %s", jid_resource(occupant.nick), room.jid);
		module:fire_event("muc-voice-request", event);
	end
end

module:hook("muc-voice-request", function(event)
	if event.occupant.role == "visitor" then
		local nick = jid_resource(event.occupant.nick);
		local formdata = {
			["muc#jid"] = event.stanza.attr.from;
			["muc#roomnick"] = nick;
		};

		local message = st.message({ type = "normal"; from = event.room.jid })
			:add_child(voice_request_form:form(formdata));

		event.room:broadcast(message, function (_, occupant)
			return occupant.role == "moderator";
		end);
	end
end);

module:hook("muc-voice-response", function(event)
	local actor = event.stanza.attr.from;
	local affected_occupant = event.room:get_occupant_by_real_jid(event.fields["muc#jid"]);
	local occupant = event.occupant;

	if occupant.role ~= "moderator" then
		module:log("debug", "%s tried to grant voice but wasn't a moderator", jid_resource(occupant.nick));
		return;
	end

	if not event.fields["muc#request_allow"] then
		module:log("debug", "%s did not grant voice", jid_resource(occupant.nick));
		return;
	end

	if not affected_occupant then
		module:log("debug", "%s tried to grant voice to unknown occupant %s",
			jid_resource(occupant.nick), event.fields["muc#jid"]);
		return;
	end

	if affected_occupant.role ~= "visitor" then
		module:log("debug", "%s tried to grant voice to %s but they already have it",
			jid_resource(occupant.nick), jid_resource(occupant.jid));
		return;
	end

	module:log("debug", "%s granted voice to %s", jid_resource(event.occupant.nick), jid_resource(occupant.jid));
	local ok, errtype, err = event.room:set_role(actor, affected_occupant.nick, "participant", "Voice granted");

	if not ok then
		module:log("debug", "Error granting voice: %s", err or errtype);
		event.origin.send(st.error_reply(event.stanza, errtype, err));
	end
end);


return {
	handle_request = handle_request;
};