plugins/muc/util.lib.lua

   1 -- Prosody IM
   2 -- Copyright (C) 2008-2010 Matthew Wild
   3 -- Copyright (C) 2008-2010 Waqas Hussain
   4 -- Copyright (C) 2014 Daurnimator
   5 --
   6 -- This project is MIT/X11 licensed. Please see the
   7 -- COPYING file in the source package for more information.
   8 --
   9
  10 local _M = {};
  11
  12 _M.valid_affiliations = {
  13         outcast = -1;
  14         none = 0;
  15         member = 1;
  16         admin = 2;
  17         owner = 3;
  18 };
  19
  20 _M.valid_roles = {
  21         none = 0;
  22         visitor = 1;
  23         participant = 2;
  24         moderator = 3;
  25 };
  26
  27 local kickable_error_conditions = {
  28         ["gone"] = true;
  29         ["internal-server-error"] = true;
  30         ["item-not-found"] = true;
  31         ["jid-malformed"] = true;
  32         ["recipient-unavailable"] = true;
  33         ["redirect"] = true;
  34         ["remote-server-not-found"] = true;
  35         ["remote-server-timeout"] = true;
  36         ["service-unavailable"] = true;
  37         ["malformed error"] = true;
  38 };
  39 function _M.is_kickable_error(stanza)
  40         local cond = select(2, stanza:get_error()) or "malformed error";
  41         return kickable_error_conditions[cond];
  42 end
  43
  44 local muc_x_filters = {
  45         ["http://jabber.org/protocol/muc"] = true;
  46         ["http://jabber.org/protocol/muc#user"] = true;
  47 }
  48 local function muc_x_filter(tag)
  49         if muc_x_filters[tag.attr.xmlns] then
  50                 return nil;
  51         end
  52         return tag;
  53 end
  54 function _M.filter_muc_x(stanza)
  55         return stanza:maptags(muc_x_filter);
  56 end
  57
  58 function _M.only_with_min_role(role)
  59         local min_role_value = _M.valid_roles[role];
  60         return function (nick, occupant) --luacheck: ignore 212/nick
  61                 if _M.valid_roles[occupant.role or "none"] >= min_role_value then
  62                         return true;
  63                 end
  64         end;
  65 end
  66
  67 return _M;