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%%%----------------------------------------------------------------------
%%% File : mod_private.erl
%%% Author : Alexey Shchepin <alexey@sevcom.net>
%%% Purpose :
%%% Created : 16 Jan 2003 by Alexey Shchepin <alexey@sevcom.net>
%%% Id : $Id$
%%%----------------------------------------------------------------------
-module(mod_private).
-author('alexey@sevcom.net').
-vsn('$Revision$ ').
-behaviour(gen_mod).
-export([start/1,
process_local_iq/3]).
-include("ejabberd.hrl").
-include("namespaces.hrl").
-record(private_storage, {userns, xml}).
start(Opts) ->
IQDisc = gen_mod:get_opt(iqdisc, Opts, one_queue),
mnesia:create_table(private_storage,
[{disc_only_copies, [node()]},
{attributes, record_info(fields, private_storage)}]),
gen_iq_handler:add_iq_handler(ejabberd_local, ?NS_PRIVATE,
?MODULE, process_local_iq, IQDisc).
process_local_iq(From, To, {iq, ID, Type, XMLNS, SubEl}) ->
{User, Server, _} = From,
LUser = jlib:tolower(User),
LServer = jlib:tolower(Server),
case ?MYNAME of
Server ->
{xmlelement, Name, Attrs, Els} = SubEl,
case Type of
set ->
F = fun() ->
lists:foreach(
fun(El) ->
set_data(LUser, El)
end, Els)
end,
mnesia:transaction(F),
{iq, ID, result, XMLNS, [{xmlelement, Name, Attrs, []}]};
get ->
case catch get_data(LUser, Els) of
{'EXIT', Reason} ->
{iq, ID, error, XMLNS,
[SubEl, {xmlelement, "error",
[{"code", "500"}],
[{xmlcdata, "Internal Server Error"}]}]};
Res ->
{iq, ID, error, XMLNS,
[{xmlelement, Name, Attrs, Res}]}
end
end;
_ ->
{iq, ID, error, XMLNS, [SubEl, {xmlelement, "error",
[{"code", "405"}],
[{xmlcdata, "Not Allowed"}]}]}
end.
set_data(LUser, El) ->
case El of
{xmlelement, Name, Attrs, Els} ->
XMLNS = xml:get_attr_s("xmlns", Attrs),
case XMLNS of
"" ->
ignore;
_ ->
mnesia:write(#private_storage{userns = {LUser, XMLNS},
xml = El})
end;
_ ->
ignore
end.
get_data(LUser, Els) ->
get_data(LUser, Els, []).
get_data(LUser, [], Res) ->
lists:reverse(Res);
get_data(LUser, [El | Els], Res) ->
case El of
{xmlelement, Name, Attrs, _} ->
XMLNS = xml:get_attr_s("xmlns", Attrs),
case mnesia:dirty_read(private_storage, {LUser, XMLNS}) of
[R] ->
get_data(LUser, Els, [R#private_storage.xml | Res]);
[] ->
get_data(LUser, Els, [El | Res])
end;
_ ->
get_data(LUser, Els, Res)
end.
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