plugins/mod_private.lua

   1 -- Prosody IM
   2 -- Copyright (C) 2008-2010 Matthew Wild
   3 -- Copyright (C) 2008-2010 Waqas Hussain
   4 --
   5 -- This project is MIT/X11 licensed. Please see the
   6 -- COPYING file in the source package for more information.
   7 --
   8
   9
  10 local st = require "util.stanza"
  11
  12 local private_storage = module:open_store();
  13
  14 module:add_feature("jabber:iq:private");
  15
  16 module:hook("iq/self/jabber:iq:private:query", function(event)
  17         local origin, stanza = event.origin, event.stanza;
  18         local query = stanza.tags[1];
  19         if #query.tags ~= 1 then
  20                 origin.send(st.error_reply(stanza, "modify", "bad-format"));
  21                 return true;
  22         end
  23         local tag = query.tags[1];
  24         local key = tag.name..":"..tag.attr.xmlns;
  25         local data, err = private_storage:get(origin.username);
  26         if err then
  27                 origin.send(st.error_reply(stanza, "wait", "internal-server-error", err));
  28                 return true;
  29         end
  30         if stanza.attr.type == "get" then
  31                 if data and data[key] then
  32                         origin.send(st.reply(stanza):query("jabber:iq:private"):add_child(st.deserialize(data[key])));
  33                         return true;
  34                 else
  35                         origin.send(st.reply(stanza):add_child(query));
  36                         return true;
  37                 end
  38         else -- type == set
  39                 if not data then data = {}; end;
  40                 if #tag == 0 then
  41                         data[key] = nil;
  42                 else
  43                         data[key] = st.preserialize(tag);
  44                 end
  45                 -- TODO delete datastore if empty
  46                 local ok, err = private_storage:set(origin.username, data);
  47                 if not ok then
  48                         origin.send(st.error_reply(stanza, "wait", "internal-server-error", err));
  49                         return true;
  50                 end
  51                 origin.send(st.reply(stanza));
  52                 return true;
  53         end
  54 end);