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("private", "map");
  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                 return origin.send(st.error_reply(stanza, "modify", "bad-format"));
  21         end
  22         local tag = query.tags[1];
  23         local key = tag.name..":"..tag.attr.xmlns;
  24         if stanza.attr.type == "get" then
  25                 local data, err = private_storage:get(origin.username, key);
  26                 if data then
  27                         return origin.send(st.reply(stanza):query("jabber:iq:private"):add_child(st.deserialize(data)));
  28                 elseif err then
  29                         return origin.send(st.error_reply(stanza, "wait", "internal-server-error", err));
  30                 else
  31                         return origin.send(st.reply(stanza):add_child(query));
  32                 end
  33         else -- type == set
  34                 local data;
  35                 if #tag ~= 0 then
  36                         data = st.preserialize(tag);
  37                 end
  38                 -- TODO delete datastore if empty
  39                 local ok, err = private_storage:set(origin.username, key, data);
  40                 if not ok then
  41                         return origin.send(st.error_reply(stanza, "wait", "internal-server-error", err));
  42                 end
  43                 return origin.send(st.reply(stanza));
  44         end
  45 end);