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xmpp.chapril.org-ejabberd/src/mod_shared_roster.erl
Alexey Shchepin c737ce1b8c * src/odbc/pg.sql: Updated
* src/mod_shared_roster.erl: Updated

* src/ejabberd_sm.erl: Bugfix

* src/mod_roster.erl: Bugfix
* src/mod_roster_odbc.erl: Likewise

SVN Revision: 570
2006-05-26 00:00:32 +00:00

305 lines
8.2 KiB
Erlang

%%%----------------------------------------------------------------------
%%% File : mod_shared_roster.erl
%%% Author : Alexey Shchepin <alexey@sevcom.net>
%%% Purpose : Shared roster management
%%% Created : 5 Mar 2005 by Alexey Shchepin <alexey@sevcom.net>
%%% Id : $Id: mod_shared_roster.erl 24 2005-04-14 01:15:31Z alexey $
%%%----------------------------------------------------------------------
-module(mod_shared_roster).
-author('alexey@sevcom.net').
-behaviour(gen_mod).
-export([start/2, stop/1,
get_user_roster/2,
get_subscription_lists/3,
get_jid_info/4,
in_subscription/6,
out_subscription/4,
list_groups/1,
create_group/2,
create_group/3,
delete_group/2,
get_group_opts/2,
set_group_opts/3,
get_group_users/2,
get_group_explicit_users/2,
add_user_to_group/3,
remove_user_from_group/3]).
-include("ejabberd.hrl").
-include("jlib.hrl").
-include("mod_roster.hrl").
-record(sr_group, {group_host, opts}).
-record(sr_user, {us, group_host}).
start(Host, _Opts) ->
mnesia:create_table(sr_group,
[{disc_copies, [node()]},
{attributes, record_info(fields, sr_group)}]),
mnesia:create_table(sr_user,
[{disc_copies, [node()]},
{type, bag},
{attributes, record_info(fields, sr_user)}]),
mnesia:add_table_index(sr_user, group_host),
ejabberd_hooks:add(roster_get, Host,
?MODULE, get_user_roster, 70),
ejabberd_hooks:add(roster_in_subscription, Host,
?MODULE, in_subscription, 30),
ejabberd_hooks:add(roster_out_subscription, Host,
?MODULE, out_subscription, 30),
ejabberd_hooks:add(roster_get_subscription_lists, Host,
?MODULE, get_subscription_lists, 70),
ejabberd_hooks:add(roster_get_jid_info, Host,
?MODULE, get_jid_info, 70).
%ejabberd_hooks:add(remove_user, Host,
% ?MODULE, remove_user, 50),
stop(Host) ->
ejabberd_hooks:delete(roster_get, Host,
?MODULE, get_user_roster, 70),
ejabberd_hooks:delete(roster_in_subscription, Host,
?MODULE, in_subscription, 30),
ejabberd_hooks:delete(roster_out_subscription, Host,
?MODULE, out_subscription, 30),
ejabberd_hooks:delete(roster_get_subscription_lists, Host,
?MODULE, get_subscription_lists, 70),
ejabberd_hooks:delete(roster_get_jid_info, Host,
?MODULE, get_jid_info, 70).
%ejabberd_hooks:delete(remove_user, Host,
% ?MODULE, remove_user, 50),
get_user_roster(Items, US) ->
{U, S} = US,
DisplayedGroups = get_user_displayed_groups(US),
SRUsers =
lists:foldl(
fun(Group, Acc1) ->
lists:foldl(
fun(User, Acc2) ->
dict:append(User, get_group_name(S, Group), Acc2)
end, Acc1, get_group_users(S, Group))
end, dict:new(), DisplayedGroups),
{NewItems1, SRUsersRest} =
lists:mapfoldl(
fun(Item, SRUsers1) ->
{_, _, {U1, S1, _}} = Item#roster.usj,
US1 = {U1, S1},
case dict:find(US1, SRUsers1) of
{ok, _GroupNames} ->
{Item#roster{subscription = both, ask = none},
dict:erase(US1, SRUsers1)};
error ->
{Item, SRUsers1}
end
end, SRUsers, Items),
SRItems = [#roster{usj = {U, S, {U1, S1, ""}},
us = US,
jid = {U1, S1, ""},
name = "",
subscription = both,
ask = none,
groups = GroupNames} ||
{{U1, S1}, GroupNames} <- dict:to_list(SRUsersRest)],
SRItems ++ NewItems1.
get_subscription_lists({F, T}, User, Server) ->
LUser = jlib:nodeprep(User),
LServer = jlib:nameprep(Server),
US = {LUser, LServer},
DisplayedGroups = get_user_displayed_groups(US),
SRUsers =
lists:usort(
lists:flatmap(
fun(Group) ->
get_group_users(LServer, Group)
end, DisplayedGroups)),
SRJIDs = [{U1, S1, ""} || {U1, S1} <- SRUsers],
{lists:usort(SRJIDs ++ F), lists:usort(SRJIDs ++ T)}.
get_jid_info({Subscription, Groups}, User, Server, JID) ->
LUser = jlib:nodeprep(User),
LServer = jlib:nameprep(Server),
US = {LUser, LServer},
{U1, S1, _} = jlib:jid_tolower(JID),
US1 = {U1, S1},
DisplayedGroups = get_user_displayed_groups(US),
SRUsers =
lists:foldl(
fun(Group, Acc1) ->
lists:foldl(
fun(User1, Acc2) ->
dict:append(
User1, get_group_name(LServer, Group), Acc2)
end, Acc1, get_group_users(LServer, Group))
end, dict:new(), DisplayedGroups),
case dict:find(US1, SRUsers) of
{ok, GroupNames} ->
NewGroups = if
Groups == [] -> GroupNames;
true -> Groups
end,
{both, NewGroups};
error ->
{Subscription, Groups}
end.
in_subscription(Acc, User, Server, JID, Type, _Reason) ->
process_subscription(in, User, Server, JID, Type, Acc).
out_subscription(User, Server, JID, Type) ->
process_subscription(out, User, Server, JID, Type, false).
process_subscription(Direction, User, Server, JID, _Type, Acc) ->
LUser = jlib:nodeprep(User),
LServer = jlib:nameprep(Server),
US = {LUser, LServer},
{U1, S1, _} = jlib:jid_tolower(jlib:jid_remove_resource(JID)),
US1 = {U1, S1},
DisplayedGroups = get_user_displayed_groups(US),
SRUsers =
lists:usort(
lists:flatmap(
fun(Group) ->
get_group_users(LServer, Group)
end, DisplayedGroups)),
case lists:member(US1, SRUsers) of
true ->
case Direction of
in ->
{stop, false};
out ->
stop
end;
false ->
Acc
end.
list_groups(Host) ->
mnesia:dirty_select(
sr_group,
[{#sr_group{group_host = {'$1', '$2'},
_ = '_'},
[{'==', '$2', Host}],
['$1']}]).
create_group(Host, Group) ->
create_group(Host, Group, []).
create_group(Host, Group, Opts) ->
R = #sr_group{group_host = {Group, Host}, opts = Opts},
F = fun() ->
mnesia:write(R)
end,
mnesia:transaction(F).
delete_group(Host, Group) ->
F = fun() ->
mnesia:delete({sr_group, {Group, Host}})
end,
mnesia:transaction(F).
get_group_opts(Host, Group) ->
case catch mnesia:dirty_read(sr_group, {Group, Host}) of
[#sr_group{opts = Opts}] ->
Opts;
_ ->
error
end.
set_group_opts(Host, Group, Opts) ->
R = #sr_group{group_host = {Group, Host}, opts = Opts},
F = fun() ->
mnesia:write(R)
end,
mnesia:transaction(F).
get_user_groups(US) ->
Host = element(2, US),
case catch mnesia:dirty_read(sr_user, US) of
Rs when is_list(Rs) ->
[Group || #sr_user{group_host = {Group, H}} <- Rs, H == Host];
_ ->
[]
end ++ get_all_users_groups(Host).
is_group_enabled(Host, Group) ->
case catch mnesia:dirty_read(sr_group, {Group, Host}) of
[#sr_group{opts = Opts}] ->
not lists:member(disabled, Opts);
_ ->
false
end.
get_group_opt(Host, Group, Opt, Default) ->
case catch mnesia:dirty_read(sr_group, {Group, Host}) of
[#sr_group{opts = Opts}] ->
case lists:keysearch(Opt, 1, Opts) of
{value, {_, Val}} ->
Val;
false ->
Default
end;
_ ->
false
end.
get_group_users(Host, Group) ->
case get_group_opt(Host, Group, all_users, false) of
true ->
ejabberd_auth:get_vh_registered_users(Host);
false ->
[]
end ++ get_group_explicit_users(Host, Group).
get_group_explicit_users(Host, Group) ->
case catch mnesia:dirty_index_read(
sr_user, {Group, Host}, #sr_user.group_host) of
Rs when is_list(Rs) ->
[R#sr_user.us || R <- Rs];
_ ->
[]
end.
get_group_name(Host, Group) ->
get_group_opt(Host, Group, name, Group).
get_all_users_groups(Host) ->
lists:filter(
fun(Group) -> get_group_opt(Host, Group, all_users, false) end,
list_groups(Host)).
get_user_displayed_groups(US) ->
Host = element(2, US),
DisplayedGroups1 =
lists:usort(
lists:flatmap(
fun(Group) ->
case is_group_enabled(Host, Group) of
true ->
get_group_opt(Host, Group, displayed_groups, []);
false ->
[]
end
end, get_user_groups(US))),
[Group || Group <- DisplayedGroups1, is_group_enabled(Host, Group)].
add_user_to_group(Host, US, Group) ->
R = #sr_user{us = US, group_host = {Group, Host}},
F = fun() ->
mnesia:write(R)
end,
mnesia:transaction(F).
remove_user_from_group(Host, US, Group) ->
R = #sr_user{us = US, group_host = {Group, Host}},
F = fun() ->
mnesia:delete_object(R)
end,
mnesia:transaction(F).