mod_compat_muc_admin: general cleanup, adding missing locals from muc.lib.lua (since things aren't inflated enough already)
local st = require "util.stanza";
local jid_split = require "util.jid".split;
local jid_bare = require "util.jid".bare;
local jid_prep = require "util.jid".prep;
local log = require "util.logger".init("mod_muc");
local muc_host = module:get_host();
if not hosts[muc_host].modules.muc then -- Not a MUC host
module:log("error", "this module can only be used on muc hosts."); return false;
end
-- Constants and imported functions from muc.lib.lua
local xmlns_ma, xmlns_mo = "http://jabber.org/protocol/muc#admin", "http://jabber.org/protocol/muc#owner";
local kickable_error_conditions = {
["gone"] = true;
["internal-server-error"] = true;
["item-not-found"] = true;
["jid-malformed"] = true;
["recipient-unavailable"] = true;
["redirect"] = true;
["remote-server-not-found"] = true;
["remote-server-timeout"] = true;
["service-unavailable"] = true;
["malformed error"] = true;
};
local function is_kickable_error(stanza)
local cond = get_error_condition(stanza);
return kickable_error_conditions[cond] and cond;
end
local function build_unavailable_presence_from_error(stanza)
local type, condition, text = stanza:get_error();
local error_message = "Kicked: "..(condition and condition:gsub("%-", " ") or "presence error");
if text then
error_message = error_message..": "..text;
end
return st.presence({type='unavailable', from=stanza.attr.from, to=stanza.attr.to})
:tag('status'):text(error_message);
end
local function getText(stanza, path) return getUsingPath(stanza, path, true); end
-- COMPAT: iq condensed function
hosts[muc_host].modules.muc.stanza_handler.muc_new_room.room_mt["compat_iq"] = function (self, origin, stanza, xmlns)
local actor = stanza.attr.from;
local affiliation = self:get_affiliation(actor);
local current_nick = self._jid_nick[actor];
local role = current_nick and self._occupants[current_nick].role or self:get_default_role(affiliation);
local item = stanza.tags[1].tags[1];
if item and item.name == "item" then
if stanza.attr.type == "set" then
local callback = function() origin.send(st.reply(stanza)); end
if item.attr.jid then -- Validate provided JID
item.attr.jid = jid_prep(item.attr.jid);
if not item.attr.jid then
origin.send(st.error_reply(stanza, "modify", "jid-malformed"));
return;
end
end
if not item.attr.jid and item.attr.nick then -- COMPAT Workaround for Miranda sending 'nick' instead of 'jid' when changing affiliation
local occupant = self._occupants[self.jid.."/"..item.attr.nick];
if occupant then item.attr.jid = occupant.jid; end
elseif not item.attr.nick and item.attr.jid then
local nick = self._jid_nick[item.attr.jid];
if nick then item.attr.nick = select(3, jid_split(nick)); end
end
local reason = item.tags[1] and item.tags[1].name == "reason" and #item.tags[1] == 1 and item.tags[1][1];
if item.attr.affiliation and item.attr.jid and not item.attr.role then
local success, errtype, err = self:set_affiliation(actor, item.attr.jid, item.attr.affiliation, callback, reason);
if not success then origin.send(st.error_reply(stanza, errtype, err)); end
elseif item.attr.role and item.attr.nick and not item.attr.affiliation then
local success, errtype, err = self:set_role(actor, self.jid.."/"..item.attr.nick, item.attr.role, callback, reason);
if not success then origin.send(st.error_reply(stanza, errtype, err)); end
else
origin.send(st.error_reply(stanza, "cancel", "bad-request"));
end
elseif stanza.attr.type == "get" then
local _aff = item.attr.affiliation;
local _rol = item.attr.role;
if _aff and not _rol then
if affiliation == "owner" or (affiliation == "admin" and _aff ~= "owner" and _aff ~= "admin") then
local reply = st.reply(stanza):query(xmlns);
for jid, affiliation in pairs(self._affiliations) do
if affiliation == _aff then
reply:tag("item", {affiliation = _aff, jid = jid}):up();
end
end
origin.send(reply);
else
origin.send(st.error_reply(stanza, "auth", "forbidden"));
end
elseif _rol and not _aff then
if role == "moderator" then
-- TODO allow admins and owners not in room? Provide read-only access to everyone who can see the participants anyway?
if _rol == "none" then _rol = nil; end
local reply = st.reply(stanza):query(xmlns);
for occupant_jid, occupant in pairs(self._occupants) do
if occupant.role == _rol then
reply:tag("item", {
nick = select(3, jid_split(occupant_jid)),
role = _rol or "none",
affiliation = occupant.affiliation or "none",
jid = occupant.jid
}):up();
end
end
origin.send(reply);
else
origin.send(st.error_reply(stanza, "auth", "forbidden"));
end
else
origin.send(st.error_reply(stanza, "cancel", "bad-request"));
end
end
elseif stanza.attr.type == "set" or stanza.attr.type == "get" then
origin.send(st.error_reply(stanza, "cancel", "bad-request"));
end
end
-- COMPAT: reworked handle_to_room function
hosts[muc_host].modules.muc.stanza_handler.muc_new_room.room_mt["handle_to_room"] = function (self, origin, stanza)
local type = stanza.attr.type;
local xmlns = stanza.tags[1] and stanza.tags[1].attr.xmlns;
if stanza.name == "iq" then
if xmlns == "http://jabber.org/protocol/disco#info" and type == "get" then
origin.send(self:get_disco_info(stanza));
elseif xmlns == "http://jabber.org/protocol/disco#items" and type == "get" then
origin.send(self:get_disco_items(stanza));
elseif xmlns == xmlns_ma or xmlns == xmlns_mo then
if xmlns == xmlns_ma then
self:compat_iq(origin, stanza, xmlns);
elseif xmlns == xmlns_mo and (type == "set" or type == "get") and stanza.tags[1].name == "query" then
local owner_err = st.error_reply(stanza, "auth", "forbidden", "Only owners can configure rooms");
if #stanza.tags[1].tags == 0 and stanza.attr.type == "get" then
if self:get_affiliation(stanza.attr.from) ~= "owner" then
origin.send(owner_err);
else self:send_form(origin, stanza); end
elseif stanza.attr.type == "set" and stanza.tags[1]:get_child("x", "jabber:x:data") then
if self:get_affiliation(stanza.attr.from) ~= "owner" then
origin.send(owner_err);
else self:process_form(origin, stanza); end
elseif stanza.tags[1].tags[1].name == "destroy" then
if self:get_affiliation(stanza.attr.from) == "owner" then
local newjid = child.attr.jid;
local reason, password;
for _,tag in ipairs(child.tags) do
if tag.name == "reason" then
reason = #tag.tags == 0 and tag[1];
elseif tag.name == "password" then
password = #tag.tags == 0 and tag[1];
end
end
self:destroy(newjid, reason, password);
origin.send(st.reply(stanza));
else origin.send(owner_err); end
else
self:compat_iq(origin, stanza, xmlns);
end
else
origin.send(st.error_reply(stanza, "modify", "bad-request"));
end
elseif type == "set" or type == "get" then
origin.send(st.error_reply(stanza, "cancel", "service-unavailable"));
end
elseif stanza.name == "message" and type == "groupchat" then
local from, to = stanza.attr.from, stanza.attr.to;
local room = jid_bare(to);
local current_nick = self._jid_nick[from];
local occupant = self._occupants[current_nick];
if not occupant then -- not in room
origin.send(st.error_reply(stanza, "cancel", "not-acceptable"));
elseif occupant.role == "visitor" then
origin.send(st.error_reply(stanza, "cancel", "forbidden"));
else
local from = stanza.attr.from;
stanza.attr.from = current_nick;
local subject = getText(stanza, {"subject"});
if subject then
if occupant.role == "moderator" or
( self._data.changesubject and occupant.role == "participant" ) then -- and participant
self:set_subject(current_nick, subject); -- TODO use broadcast_message_stanza
else
stanza.attr.from = from;
origin.send(st.error_reply(stanza, "cancel", "forbidden"));
end
else
self:broadcast_message(stanza, true);
end
stanza.attr.from = from;
end
elseif stanza.name == "message" and type == "error" and is_kickable_error(stanza) then
local current_nick = self._jid_nick[stanza.attr.from];
log("debug", "%s kicked from %s for sending an error message", current_nick, self.jid);
self:handle_to_occupant(origin, build_unavailable_presence_from_error(stanza)); -- send unavailable
elseif stanza.name == "presence" then -- hack - some buggy clients send presence updates to the room rather than their nick
local to = stanza.attr.to;
local current_nick = self._jid_nick[stanza.attr.from];
if current_nick then
stanza.attr.to = current_nick;
self:handle_to_occupant(origin, stanza);
stanza.attr.to = to;
elseif type ~= "error" and type ~= "result" then
origin.send(st.error_reply(stanza, "cancel", "service-unavailable"));
end
elseif stanza.name == "message" and not stanza.attr.type and #stanza.tags == 1 and self._jid_nick[stanza.attr.from]
and stanza.tags[1].name == "x" and stanza.tags[1].attr.xmlns == "http://jabber.org/protocol/muc#user" then
local x = stanza.tags[1];
local payload = (#x.tags == 1 and x.tags[1]);
if payload and payload.name == "invite" and payload.attr.to then
local _from, _to = stanza.attr.from, stanza.attr.to;
local _invitee = jid_prep(payload.attr.to);
if _invitee then
local _reason = payload.tags[1] and payload.tags[1].name == 'reason' and #payload.tags[1].tags == 0 and payload.tags[1][1];
local invite = st.message({from = _to, to = _invitee, id = stanza.attr.id})
:tag('x', {xmlns='http://jabber.org/protocol/muc#user'})
:tag('invite', {from=_from})
:tag('reason'):text(_reason or ""):up()
:up();
if self:get_password() then
invite:tag("password"):text(self:get_password()):up();
end
invite:up()
:tag('x', {xmlns="jabber:x:conference", jid=_to}) -- COMPAT: Some older clients expect this
:text(_reason or "")
:up()
:tag('body') -- Add a plain message for clients which don't support invites
:text(_from..' invited you to the room '.._to..(_reason and (' ('.._reason..')') or ""))
:up();
if self:is_members_only() and not self:get_affiliation(_invitee) then
log("debug", "%s invited %s into members only room %s, granting membership", _from, _invitee, _to);
self:set_affiliation(_from, _invitee, "member", nil, "Invited by " .. self._jid_nick[_from])
end
self:_route_stanza(invite);
else
origin.send(st.error_reply(stanza, "cancel", "jid-malformed"));
end
else
origin.send(st.error_reply(stanza, "cancel", "bad-request"));
end
else
if type == "error" or type == "result" then return; end
origin.send(st.error_reply(stanza, "cancel", "service-unavailable"));
end
end