mirror of
https://github.com/processone/ejabberd.git
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21c4b65610
* src/mod_muc/mod_muc_room.erl: Updated error codes, removed trailing "-" in history. updated subject sending, added <title/> in configuration form (thanks to Sergei Golovan) * src/mod_irc/mod_irc.erl: Added vCard, ejabberd:configure replaced with jabber:iq:register (thanks to Sergei Golovan) * src/mod_configure.erl: Updated "xml:lang" usage, updated some messages (thanks to Sergei Golovan) * src/mod_configure2.erl: Likewise * src/mod_disco.erl: Likewise * src/mod_register.erl: Likewise * src/mod_vcard.erl: Likewise * src/mod_irc/mod_irc.erl: Likewise * src/mod_muc/mod_muc.erl: Likewise * src/mod_muc/mod_muc_room.erl: Likewise * src/mod_pubsub/mod_pubsub.erl: Likewise * src/jlib.hrl: Added "lang" field in "iq" record (thanks to Sergei Golovan) * src/jlib.erl: Likewise * src/ejabberd_c2s.erl: Updated to latest JEP-0078 (thanks to Sergei Golovan) * src/ejabberd_sm.erl: Bugfix SVN Revision: 205
412 lines
10 KiB
Erlang
412 lines
10 KiB
Erlang
%%%----------------------------------------------------------------------
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%%% File : ejabberd_sm.erl
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%%% Author : Alexey Shchepin <alexey@sevcom.net>
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%%% Purpose : Session manager
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%%% Created : 24 Nov 2002 by Alexey Shchepin <alexey@sevcom.net>
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%%% Id : $Id$
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%%%----------------------------------------------------------------------
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-module(ejabberd_sm).
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-author('alexey@sevcom.net').
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-vsn('$Revision$ ').
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-export([start_link/0, init/0, open_session/2, close_session/2,
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get_user_resources/1,
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set_presence/3,
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unset_presence/2,
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dirty_get_sessions_list/0,
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dirty_get_my_sessions_list/0,
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register_iq_handler/3,
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register_iq_handler/4,
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unregister_iq_handler/1
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]).
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-include("ejabberd.hrl").
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-include("jlib.hrl").
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-record(session, {ur, user, pid}).
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-record(presence, {ur, user, priority}).
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start_link() ->
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Pid = proc_lib:spawn_link(ejabberd_sm, init, []),
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register(ejabberd_sm, Pid),
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{ok, Pid}.
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init() ->
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update_tables(),
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mnesia:create_table(session, [{ram_copies, [node()]},
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{attributes, record_info(fields, session)}]),
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mnesia:add_table_index(session, user),
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mnesia:add_table_copy(session, node(), ram_copies),
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mnesia:create_table(presence,
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[{ram_copies, [node()]},
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{attributes, record_info(fields, presence)}]),
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mnesia:add_table_index(presence, user),
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mnesia:subscribe(system),
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ets:new(sm_iqtable, [named_table]),
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loop().
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loop() ->
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receive
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{route, From, To, Packet} ->
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case catch do_route(From, To, Packet) of
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{'EXIT', Reason} ->
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?ERROR_MSG("~p~nwhen processing: ~p",
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[Reason, {From, To, Packet}]);
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_ ->
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ok
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end,
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loop();
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{open_session, User, Resource, From} ->
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register_connection(User, Resource, From),
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loop();
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{close_session, User, Resource} ->
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remove_connection(User, Resource),
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loop();
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{mnesia_system_event, {mnesia_down, Node}} ->
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clean_table_from_bad_node(Node),
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loop();
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{register_iq_handler, XMLNS, Module, Function} ->
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ets:insert(sm_iqtable, {XMLNS, Module, Function}),
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loop();
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{register_iq_handler, XMLNS, Module, Function, Opts} ->
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ets:insert(sm_iqtable, {XMLNS, Module, Function, Opts}),
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loop();
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{unregister_iq_handler, XMLNS} ->
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case ets:lookup(sm_iqtable, XMLNS) of
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[{_, Module, Function, Opts}] ->
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gen_iq_handler:stop_iq_handler(Module, Function, Opts);
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_ ->
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ok
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end,
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ets:delete(sm_iqtable, XMLNS),
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mod_disco:unregister_feature(XMLNS),
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loop();
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_ ->
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loop()
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end.
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open_session(User, Resource) ->
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ejabberd_sm ! {open_session, User, Resource, self()}.
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close_session(User, Resource) ->
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ejabberd_sm ! {close_session, User, Resource}.
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register_connection(User, Resource, Pid) ->
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LUser = jlib:nodeprep(User),
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LResource = jlib:resourceprep(Resource),
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UR = {LUser, LResource},
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F = fun() ->
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Ss = mnesia:wread({session, UR}),
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mnesia:write(#session{ur = UR, user = LUser, pid = Pid}),
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Ss
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end,
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case mnesia:transaction(F) of
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{atomic, Ss} ->
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lists:foreach(
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fun(R) ->
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R#session.pid ! replaced
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end, Ss);
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_ ->
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false
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end.
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remove_connection(User, Resource) ->
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LUser = jlib:nodeprep(User),
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LResource = jlib:resourceprep(Resource),
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UR = {LUser, LResource},
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F = fun() ->
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mnesia:delete({session, UR})
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end,
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mnesia:transaction(F).
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clean_table_from_bad_node(Node) ->
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F = fun() ->
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Es = mnesia:select(
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session,
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[{#session{pid = '$1', _ = '_'},
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[{'==', {node, '$1'}, Node}],
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['$_']}]),
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lists:foreach(fun(E) ->
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mnesia:delete_object(E)
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end, Es)
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end,
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mnesia:transaction(F).
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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do_route(From, To, Packet) ->
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?DEBUG("session manager~n\tfrom ~p~n\tto ~p~n\tpacket ~P~n",
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[From, To, Packet, 8]),
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#jid{user = User,
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luser = LUser, lserver = LServer, lresource = LResource} = To,
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{xmlelement, Name, Attrs, _Els} = Packet,
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case LResource of
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"" ->
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case Name of
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"presence" ->
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{Pass, Subsc} =
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case xml:get_attr_s("type", Attrs) of
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"subscribe" ->
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{mod_roster:in_subscription(User,
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From,
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subscribe),
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true};
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"subscribed" ->
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{mod_roster:in_subscription(User,
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From,
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subscribed),
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true};
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"unsubscribe" ->
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{mod_roster:in_subscription(User,
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From,
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unsubscribe),
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true};
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"unsubscribed" ->
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{mod_roster:in_subscription(User,
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From,
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unsubscribed),
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true};
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_ ->
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{true, false}
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end,
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if Pass ->
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LFrom = jlib:jid_tolower(From),
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PResources = get_user_present_resources(User),
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if
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PResources /= [] ->
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lists:foreach(
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fun({_, R}) ->
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if LFrom /=
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{LUser, LServer, R} ->
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ejabberd_sm !
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{route,
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From,
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jlib:jid_replace_resource(To, R),
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Packet};
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true ->
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ok
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end
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end, PResources);
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true ->
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if
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Subsc ->
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case ejabberd_auth:is_user_exists(LUser) of
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true ->
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catch mod_offline:store_packet(
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From, To, Packet);
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_ ->
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Err = jlib:make_error_reply(
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Packet, ?ERR_SERVICE_UNAVAILABLE),
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ejabberd_router:route(To, From, Err)
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end;
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true ->
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ok
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end
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end;
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true ->
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ok
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end;
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"message" ->
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route_message(From, To, Packet);
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"iq" ->
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process_iq(From, To, Packet);
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"broadcast" ->
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lists:foreach(
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fun(R) ->
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ejabberd_sm ! {route,
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From,
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jlib:jid_replace_resource(To, R),
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Packet}
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end, get_user_resources(User));
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_ ->
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ok
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end;
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_ ->
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LUR = {LUser, LResource},
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case mnesia:dirty_read({session, LUR}) of
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[] ->
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case Name of
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"message" ->
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route_message(From, To, Packet);
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"iq" ->
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case xml:get_attr_s("type", Attrs) of
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"error" -> ok;
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"result" -> ok;
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_ ->
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Err =
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jlib:make_error_reply(
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Packet, ?ERR_RECIPIENT_UNAVAILABLE),
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ejabberd_router:route(To, From, Err)
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end;
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_ ->
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?DEBUG("packet droped~n", [])
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end;
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[Sess] ->
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Pid = Sess#session.pid,
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?DEBUG("sending to process ~p~n", [Pid]),
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Pid ! {route, From, To, Packet}
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end
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end.
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route_message(From, To, Packet) ->
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LUser = To#jid.luser,
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case catch lists:max(get_user_present_resources(LUser)) of
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{'EXIT', _} ->
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case xml:get_tag_attr_s("type", Packet) of
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"error" ->
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ok;
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_ ->
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case ejabberd_auth:is_user_exists(LUser) of
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true ->
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case catch mod_offline:store_packet(
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From, To, Packet) of
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{'EXIT', _} ->
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Err = jlib:make_error_reply(
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Packet, ?ERR_SERVICE_UNAVAILABLE),
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ejabberd_router:route(To, From, Err);
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_ ->
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ok
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end;
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_ ->
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Err = jlib:make_error_reply(
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Packet, ?ERR_ITEM_NOT_FOUND),
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ejabberd_router:route(To, From, Err)
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end
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end;
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{_, R} ->
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LResource = jlib:resourceprep(R),
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LUR = {LUser, LResource},
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case mnesia:dirty_read({session, LUR}) of
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[] ->
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ok; % Race condition
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[Sess] ->
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Pid = Sess#session.pid,
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?DEBUG("sending to process ~p~n", [Pid]),
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Pid ! {route, From, To, Packet}
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end
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end.
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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get_user_resources(User) ->
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LUser = jlib:nodeprep(User),
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case catch mnesia:dirty_index_read(session, LUser, #session.user) of
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{'EXIT', _Reason} ->
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[];
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Rs ->
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lists:map(fun(R) ->
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element(2, R#session.ur)
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end, Rs)
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end.
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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set_presence(User, Resource, Priority) ->
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LUser = jlib:nodeprep(User),
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F = fun() ->
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UR = {User, Resource},
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mnesia:write(#presence{ur = UR, user = LUser,
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priority = Priority})
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end,
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mnesia:transaction(F).
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unset_presence(User, Resource) ->
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LUser = jlib:nodeprep(User),
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F = fun() ->
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UR = {User, Resource},
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mnesia:delete({presence, UR})
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end,
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mnesia:transaction(F),
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catch mod_last:on_presence_update(LUser).
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get_user_present_resources(LUser) ->
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case catch mnesia:dirty_index_read(presence, LUser, #presence.user) of
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{'EXIT', _Reason} ->
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[];
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Rs ->
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lists:map(fun(R) ->
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{R#presence.priority, element(2, R#presence.ur)}
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end, Rs)
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end.
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dirty_get_sessions_list() ->
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mnesia:dirty_all_keys(session).
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dirty_get_my_sessions_list() ->
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mnesia:dirty_select(
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session,
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[{#session{pid = '$1', _ = '_'},
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[{'==', {node, '$1'}, node()}],
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['$_']}]).
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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process_iq(From, To, Packet) ->
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IQ = jlib:iq_query_info(Packet),
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case IQ of
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#iq{xmlns = XMLNS} ->
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case ets:lookup(sm_iqtable, XMLNS) of
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[{_, Module, Function}] ->
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ResIQ = Module:Function(From, To, IQ),
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if
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ResIQ /= ignore ->
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ejabberd_router ! {route,
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To,
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From,
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jlib:iq_to_xml(ResIQ)};
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true ->
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ok
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end;
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[{_, Module, Function, Opts}] ->
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gen_iq_handler:handle(Module, Function, Opts,
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From, To, IQ);
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[] ->
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Err = jlib:make_error_reply(
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Packet, ?ERR_FEATURE_NOT_IMPLEMENTED),
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ejabberd_router ! {route, To, From, Err}
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end;
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reply ->
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ok;
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_ ->
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Err = jlib:make_error_reply(Packet, ?ERR_BAD_REQUEST),
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ejabberd_router:route(To, From, Err),
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ok
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end.
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register_iq_handler(XMLNS, Module, Fun) ->
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ejabberd_sm ! {register_iq_handler, XMLNS, Module, Fun}.
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register_iq_handler(XMLNS, Module, Fun, Opts) ->
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ejabberd_sm ! {register_iq_handler, XMLNS, Module, Fun, Opts}.
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unregister_iq_handler(XMLNS) ->
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ejabberd_sm ! {unregister_iq_handler, XMLNS}.
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update_tables() ->
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case catch mnesia:table_info(session, attributes) of
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[ur, user, node] ->
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mnesia:delete_table(session);
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[ur, user, pid] ->
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ok;
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{'EXIT', _} ->
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ok
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end,
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case lists:member(local_session, mnesia:system_info(tables)) of
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true ->
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mnesia:delete_table(local_session);
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false ->
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ok
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end.
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