/usr/lib/prosody/modules/mod_announce.lua is in prosody 0.9.1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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-- Copyright (C) 2008-2010 Matthew Wild
-- Copyright (C) 2008-2010 Waqas Hussain
--
-- This project is MIT/X11 licensed. Please see the
-- COPYING file in the source package for more information.
--
local st, jid = require "util.stanza", require "util.jid";
local hosts = prosody.hosts;
local is_admin = require "core.usermanager".is_admin;
function send_to_online(message, host)
local sessions;
if host then
sessions = { [host] = hosts[host] };
else
sessions = hosts;
end
local c = 0;
for hostname, host_session in pairs(sessions) do
if host_session.sessions then
message.attr.from = hostname;
for username in pairs(host_session.sessions) do
c = c + 1;
message.attr.to = username.."@"..hostname;
module:send(message);
end
end
end
return c;
end
-- Old <message>-based jabberd-style announcement sending
function handle_announcement(event)
local origin, stanza = event.origin, event.stanza;
local node, host, resource = jid.split(stanza.attr.to);
if resource ~= "announce/online" then
return; -- Not an announcement
end
if not is_admin(stanza.attr.from) then
-- Not an admin? Not allowed!
module:log("warn", "Non-admin '%s' tried to send server announcement", stanza.attr.from);
return;
end
module:log("info", "Sending server announcement to all online users");
local message = st.clone(stanza);
message.attr.type = "headline";
message.attr.from = host;
local c = send_to_online(message, host);
module:log("info", "Announcement sent to %d online users", c);
return true;
end
module:hook("message/host", handle_announcement);
-- Ad-hoc command (XEP-0133)
local dataforms_new = require "util.dataforms".new;
local announce_layout = dataforms_new{
title = "Making an Announcement";
instructions = "Fill out this form to make an announcement to all\nactive users of this service.";
{ name = "FORM_TYPE", type = "hidden", value = "http://jabber.org/protocol/admin" };
{ name = "subject", type = "text-single", label = "Subject" };
{ name = "announcement", type = "text-multi", required = true, label = "Announcement" };
};
function announce_handler(self, data, state)
if state then
if data.action == "cancel" then
return { status = "canceled" };
end
local fields = announce_layout:data(data.form);
module:log("info", "Sending server announcement to all online users");
local message = st.message({type = "headline"}, fields.announcement):up()
:tag("subject"):text(fields.subject or "Announcement");
local count = send_to_online(message, data.to);
module:log("info", "Announcement sent to %d online users", count);
return { status = "completed", info = ("Announcement sent to %d online users"):format(count) };
else
return { status = "executing", actions = {"next", "complete", default = "complete"}, form = announce_layout }, "executing";
end
return true;
end
local adhoc_new = module:require "adhoc".new;
local announce_desc = adhoc_new("Send Announcement to Online Users", "http://jabber.org/protocol/admin#announce", announce_handler, "admin");
module:provides("adhoc", announce_desc);
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