plugins/mod_private.lua

   1 -- Prosody IM v0.1
   2 -- Copyright (C) 2008 Matthew Wild
   3 -- Copyright (C) 2008 Waqas Hussain
   4 --
   5 -- This program is free software; you can redistribute it and/or
   6 -- modify it under the terms of the GNU General Public License
   7 -- as published by the Free Software Foundation; either version 2
   8 -- of the License, or (at your option) any later version.
   9 --
  10 -- This program is distributed in the hope that it will be useful,
  11 -- but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 -- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 -- GNU General Public License for more details.
  14 --
  15 -- You should have received a copy of the GNU General Public License
  16 -- along with this program; if not, write to the Free Software
  17 -- Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  18 --
  19
  20
  21
  22 local st = require "util.stanza"
  23
  24 local jid_split = require "util.jid".split;
  25 local datamanager = require "util.datamanager"
  26
  27 require "core.discomanager".set("private", "jabber:iq:private");
  28
  29 module:add_iq_handler("c2s", "jabber:iq:private",
  30         function (session, stanza)
  31                 local type = stanza.attr.type;
  32                 local query = stanza.tags[1];
  33                 if (type == "get" or type == "set") and query.name == "query" then
  34                         local node, host = jid_split(stanza.attr.to);
  35                         if not(node or host) or (node == session.username and host == session.host) then
  36                                 node, host = session.username, session.host;
  37                                 if #query.tags == 1 then
  38                                         local tag = query.tags[1];
  39                                         local key = tag.name..":"..tag.attr.xmlns;
  40                                         local data = datamanager.load(node, host, "private");
  41                                         if stanza.attr.type == "get" then
  42                                                 if data and data[key] then
  43                                                         session.send(st.reply(stanza):tag("query", {xmlns = "jabber:iq:private"}):add_child(st.deserialize(data[key])));
  44                                                 else
  45                                                         session.send(st.reply(stanza):add_child(stanza.tags[1]));
  46                                                 end
  47                                         else -- set
  48                                                 if not data then data = {}; end;
  49                                                 if #tag == 0 then
  50                                                         data[key] = nil;
  51                                                 else
  52                                                         data[key] = st.preserialize(tag);
  53                                                 end
  54                                                 -- TODO delete datastore if empty
  55                                                 if datamanager.store(node, host, "private", data) then
  56                                                         session.send(st.reply(stanza));
  57                                                 else
  58                                                         session.send(st.error_reply(stanza, "wait", "internal-server-error"));
  59                                                 end
  60                                         end
  61                                 else
  62                                         session.send(st.error_reply(stanza, "modify", "bad-format"));
  63                                 end
  64                         else
  65                                 session.send(st.error_reply(stanza, "cancel", "forbidden"));
  66                         end
  67                 end
  68         end);