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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 function create_subject_message(from, subject)
return st.message({from = from; type = "groupchat"})
:tag("subject"):text(subject):up();
end
local function get_changesubject(room)
return room._data.changesubject;
end
local function set_changesubject(room, changesubject)
changesubject = changesubject and true or nil;
if get_changesubject(room) == changesubject then return false; end
room._data.changesubject = changesubject;
if room.save then room:save(true); end
return true;
end
module:hook("muc-config-form", function(event)
table.insert(event.form, {
name = "muc#roomconfig_changesubject";
type = "boolean";
label = "Allow Occupants to Change Subject?";
value = get_changesubject(event.room);
});
end);
module:hook("muc-config-submitted", function(event)
local new = event.fields["muc#roomconfig_changesubject"];
if new ~= nil and set_changesubject(event.room, new) then
event.status_codes["104"] = true;
end
end);
local function get_subject(room)
-- a <message/> stanza from the room JID (or from the occupant JID of the entity that set the subject)
return room._data.subject_from or room.jid, room._data.subject;
end
local function send_subject(room, to)
local msg = create_subject_message(get_subject(room));
msg.attr.to = to;
room:route_stanza(msg);
end
local function set_subject(room, from, subject)
if subject == "" then subject = nil; end
local old_from, old_subject = get_subject(room);
if old_subject == subject and old_from == from then return false; end
room._data.subject_from = from;
room._data.subject = subject;
if room.save then room:save(); end
local msg = create_subject_message(from, subject);
room:broadcast_message(msg);
return true;
end
-- Send subject to joining user
module:hook("muc-occupant-joined", function(event)
send_subject(event.room, event.stanza.attr.from);
end, 20);
-- Role check for subject changes
module:hook("muc-subject-change", function(event)
local room, stanza = event.room, event.stanza;
local occupant = room:get_occupant_by_real_jid(stanza.attr.from);
if occupant.role == "moderator" or
( occupant.role == "participant" and get_changesubject(room) ) then -- and participant
local subject = stanza:get_child_text("subject");
set_subject(room, occupant.nick, subject);
return true;
else
event.origin.send(st.error_reply(stanza, "auth", "forbidden"));
return true;
end
end);
return {
get_changesubject = get_changesubject;
set_changesubject = set_changesubject;
get = get_subject;
set = set_subject;
send = send_subject;
};
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