mirror of
https://github.com/processone/ejabberd.git
synced 2024-12-02 16:37:52 +01:00
00f2a736eb
Now every such string MUST be encapsulated into ?T() macro. The macro itself is defined in include/translate.hrl. Example: -module(foo). -export([bar/1]). -include("translate.hrl"). bar(Lang) -> translate:translate(Lang, ?T("baz")).
392 lines
13 KiB
Erlang
392 lines
13 KiB
Erlang
%%%----------------------------------------------------------------------
|
|
%%% File : mod_private.erl
|
|
%%% Author : Alexey Shchepin <alexey@process-one.net>
|
|
%%% Purpose : Support for private storage.
|
|
%%% Created : 16 Jan 2003 by Alexey Shchepin <alexey@process-one.net>
|
|
%%%
|
|
%%%
|
|
%%% ejabberd, Copyright (C) 2002-2019 ProcessOne
|
|
%%%
|
|
%%% This program is free software; you can redistribute it and/or
|
|
%%% modify it under the terms of the GNU General Public License as
|
|
%%% published by the Free Software Foundation; either version 2 of the
|
|
%%% License, or (at your option) any later version.
|
|
%%%
|
|
%%% This program is distributed in the hope that it will be useful,
|
|
%%% but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
%%% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
%%% General Public License for more details.
|
|
%%%
|
|
%%% You should have received a copy of the GNU General Public License along
|
|
%%% with this program; if not, write to the Free Software Foundation, Inc.,
|
|
%%% 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
%%%
|
|
%%%----------------------------------------------------------------------
|
|
|
|
-module(mod_private).
|
|
|
|
-author('alexey@process-one.net').
|
|
|
|
-protocol({xep, 49, '1.2'}).
|
|
-protocol({xep, 411, '0.2.0'}).
|
|
|
|
-behaviour(gen_mod).
|
|
|
|
-export([start/2, stop/1, reload/3, process_sm_iq/1, import_info/0,
|
|
remove_user/2, get_data/2, get_data/3, export/1,
|
|
import/5, import_start/2, mod_opt_type/1, set_data/2,
|
|
mod_options/1, depends/2, get_sm_features/5, pubsub_publish_item/6]).
|
|
|
|
-export([get_commands_spec/0, bookmarks_to_pep/2]).
|
|
|
|
-include("logger.hrl").
|
|
-include("xmpp.hrl").
|
|
-include("mod_private.hrl").
|
|
-include("ejabberd_commands.hrl").
|
|
-include("translate.hrl").
|
|
|
|
-define(PRIVATE_CACHE, private_cache).
|
|
|
|
-callback init(binary(), gen_mod:opts()) -> any().
|
|
-callback import(binary(), binary(), [binary()]) -> ok.
|
|
-callback set_data(binary(), binary(), [{binary(), xmlel()}]) -> ok | {error, any()}.
|
|
-callback get_data(binary(), binary(), binary()) -> {ok, xmlel()} | error | {error, any()}.
|
|
-callback get_all_data(binary(), binary()) -> {ok, [xmlel()]} | error | {error, any()}.
|
|
-callback del_data(binary(), binary()) -> ok | {error, any()}.
|
|
-callback use_cache(binary()) -> boolean().
|
|
-callback cache_nodes(binary()) -> [node()].
|
|
|
|
-optional_callbacks([use_cache/1, cache_nodes/1]).
|
|
|
|
start(Host, Opts) ->
|
|
Mod = gen_mod:db_mod(Opts, ?MODULE),
|
|
Mod:init(Host, Opts),
|
|
init_cache(Mod, Host, Opts),
|
|
ejabberd_hooks:add(remove_user, Host, ?MODULE, remove_user, 50),
|
|
ejabberd_hooks:add(disco_sm_features, Host, ?MODULE, get_sm_features, 50),
|
|
ejabberd_hooks:add(pubsub_publish_item, Host, ?MODULE, pubsub_publish_item, 50),
|
|
gen_iq_handler:add_iq_handler(ejabberd_sm, Host, ?NS_PRIVATE, ?MODULE, process_sm_iq),
|
|
ejabberd_commands:register_commands(get_commands_spec()).
|
|
|
|
stop(Host) ->
|
|
ejabberd_hooks:delete(remove_user, Host, ?MODULE, remove_user, 50),
|
|
ejabberd_hooks:delete(disco_sm_features, Host, ?MODULE, get_sm_features, 50),
|
|
ejabberd_hooks:delete(pubsub_publish_item, Host, ?MODULE, pubsub_publish_item, 50),
|
|
gen_iq_handler:remove_iq_handler(ejabberd_sm, Host, ?NS_PRIVATE),
|
|
case gen_mod:is_loaded_elsewhere(Host, ?MODULE) of
|
|
false ->
|
|
ejabberd_commands:unregister_commands(get_commands_spec());
|
|
true ->
|
|
ok
|
|
end.
|
|
|
|
reload(Host, NewOpts, OldOpts) ->
|
|
NewMod = gen_mod:db_mod(NewOpts, ?MODULE),
|
|
OldMod = gen_mod:db_mod(OldOpts, ?MODULE),
|
|
if NewMod /= OldMod ->
|
|
NewMod:init(Host, NewOpts);
|
|
true ->
|
|
ok
|
|
end,
|
|
init_cache(NewMod, Host, NewOpts).
|
|
|
|
depends(_Host, _Opts) ->
|
|
[{mod_pubsub, soft}].
|
|
|
|
mod_opt_type(db_type) ->
|
|
econf:db_type(?MODULE);
|
|
mod_opt_type(use_cache) ->
|
|
econf:bool();
|
|
mod_opt_type(cache_size) ->
|
|
econf:pos_int(infinity);
|
|
mod_opt_type(cache_missed) ->
|
|
econf:bool();
|
|
mod_opt_type(cache_life_time) ->
|
|
econf:timeout(second, infinity).
|
|
|
|
mod_options(Host) ->
|
|
[{db_type, ejabberd_config:default_db(Host, ?MODULE)},
|
|
{use_cache, ejabberd_option:use_cache(Host)},
|
|
{cache_size, ejabberd_option:cache_size(Host)},
|
|
{cache_missed, ejabberd_option:cache_missed(Host)},
|
|
{cache_life_time, ejabberd_option:cache_life_time(Host)}].
|
|
|
|
-spec get_sm_features({error, stanza_error()} | empty | {result, [binary()]},
|
|
jid(), jid(), binary(), binary()) ->
|
|
{error, stanza_error()} | empty | {result, [binary()]}.
|
|
get_sm_features({error, _Error} = Acc, _From, _To, _Node, _Lang) ->
|
|
Acc;
|
|
get_sm_features(Acc, _From, To, <<"">>, _Lang) ->
|
|
case gen_mod:is_loaded(To#jid.lserver, mod_pubsub) of
|
|
true ->
|
|
{result, [?NS_BOOKMARKS_CONVERSION_0 |
|
|
case Acc of
|
|
{result, Features} -> Features;
|
|
empty -> []
|
|
end]};
|
|
false ->
|
|
Acc
|
|
end;
|
|
get_sm_features(Acc, _From, _To, _Node, _Lang) ->
|
|
Acc.
|
|
|
|
-spec process_sm_iq(iq()) -> iq().
|
|
process_sm_iq(#iq{type = Type, lang = Lang,
|
|
from = #jid{luser = LUser, lserver = LServer} = From,
|
|
to = #jid{luser = LUser, lserver = LServer},
|
|
sub_els = [#private{sub_els = Els0}]} = IQ) ->
|
|
case filter_xmlels(Els0) of
|
|
[] ->
|
|
Txt = ?T("No private data found in this query"),
|
|
xmpp:make_error(IQ, xmpp:err_bad_request(Txt, Lang));
|
|
Data when Type == set ->
|
|
case set_data(From, Data) of
|
|
ok ->
|
|
xmpp:make_iq_result(IQ);
|
|
{error, #stanza_error{} = Err} ->
|
|
xmpp:make_error(IQ, Err);
|
|
{error, _} ->
|
|
Txt = ?T("Database failure"),
|
|
Err = xmpp:err_internal_server_error(Txt, Lang),
|
|
xmpp:make_error(IQ, Err)
|
|
end;
|
|
Data when Type == get ->
|
|
case get_data(LUser, LServer, Data) of
|
|
{error, _} ->
|
|
Txt = ?T("Database failure"),
|
|
Err = xmpp:err_internal_server_error(Txt, Lang),
|
|
xmpp:make_error(IQ, Err);
|
|
Els ->
|
|
xmpp:make_iq_result(IQ, #private{sub_els = Els})
|
|
end
|
|
end;
|
|
process_sm_iq(#iq{lang = Lang} = IQ) ->
|
|
Txt = ?T("Query to another users is forbidden"),
|
|
xmpp:make_error(IQ, xmpp:err_forbidden(Txt, Lang)).
|
|
|
|
-spec filter_xmlels([xmlel()]) -> [{binary(), xmlel()}].
|
|
filter_xmlels(Els) ->
|
|
lists:flatmap(
|
|
fun(#xmlel{} = El) ->
|
|
case fxml:get_tag_attr_s(<<"xmlns">>, El) of
|
|
<<"">> -> [];
|
|
NS -> [{NS, El}]
|
|
end
|
|
end, Els).
|
|
|
|
-spec set_data(jid(), [{binary(), xmlel()}]) -> ok | {error, _}.
|
|
set_data(JID, Data) ->
|
|
set_data(JID, Data, true).
|
|
|
|
-spec set_data(jid(), [{binary(), xmlel()}], boolean()) -> ok | {error, _}.
|
|
set_data(JID, Data, Publish) ->
|
|
{LUser, LServer, _} = jid:tolower(JID),
|
|
Mod = gen_mod:db_mod(LServer, ?MODULE),
|
|
case Mod:set_data(LUser, LServer, Data) of
|
|
ok ->
|
|
delete_cache(Mod, LUser, LServer, Data),
|
|
case Publish of
|
|
true -> publish_data(JID, Data);
|
|
false -> ok
|
|
end;
|
|
{error, _} = Err ->
|
|
Err
|
|
end.
|
|
|
|
-spec get_data(binary(), binary(), [{binary(), xmlel()}]) -> [xmlel()] | {error, _}.
|
|
get_data(LUser, LServer, Data) ->
|
|
Mod = gen_mod:db_mod(LServer, ?MODULE),
|
|
lists:foldr(
|
|
fun(_, {error, _} = Err) ->
|
|
Err;
|
|
({NS, El}, Els) ->
|
|
Res = case use_cache(Mod, LServer) of
|
|
true ->
|
|
ets_cache:lookup(
|
|
?PRIVATE_CACHE, {LUser, LServer, NS},
|
|
fun() -> Mod:get_data(LUser, LServer, NS) end);
|
|
false ->
|
|
Mod:get_data(LUser, LServer, NS)
|
|
end,
|
|
case Res of
|
|
{ok, StorageEl} ->
|
|
[StorageEl|Els];
|
|
error ->
|
|
[El|Els];
|
|
{error, _} = Err ->
|
|
Err
|
|
end
|
|
end, [], Data).
|
|
|
|
-spec get_data(binary(), binary()) -> [xmlel()] | {error, _}.
|
|
get_data(LUser, LServer) ->
|
|
Mod = gen_mod:db_mod(LServer, ?MODULE),
|
|
case Mod:get_all_data(LUser, LServer) of
|
|
{ok, Els} -> Els;
|
|
error -> [];
|
|
{error, _} = Err -> Err
|
|
end.
|
|
|
|
-spec remove_user(binary(), binary()) -> ok.
|
|
remove_user(User, Server) ->
|
|
LUser = jid:nodeprep(User),
|
|
LServer = jid:nameprep(Server),
|
|
Mod = gen_mod:db_mod(Server, ?MODULE),
|
|
Data = case use_cache(Mod, LServer) of
|
|
true ->
|
|
case Mod:get_all_data(LUser, LServer) of
|
|
{ok, Els} -> filter_xmlels(Els);
|
|
_ -> []
|
|
end;
|
|
false ->
|
|
[]
|
|
end,
|
|
Mod:del_data(LUser, LServer),
|
|
delete_cache(Mod, LUser, LServer, Data).
|
|
|
|
%%%===================================================================
|
|
%%% Pubsub
|
|
%%%===================================================================
|
|
-spec publish_data(jid(), [{binary(), xmlel()}]) -> ok | {error, stanza_error()}.
|
|
publish_data(JID, Data) ->
|
|
{_, LServer, _} = LBJID = jid:remove_resource(jid:tolower(JID)),
|
|
case gen_mod:is_loaded(LServer, mod_pubsub) of
|
|
true ->
|
|
case lists:keyfind(?NS_STORAGE_BOOKMARKS, 1, Data) of
|
|
false -> ok;
|
|
{_, El} ->
|
|
PubOpts = [{persist_items, true},
|
|
{access_model, whitelist}],
|
|
case mod_pubsub:publish_item(
|
|
LBJID, LServer, ?NS_STORAGE_BOOKMARKS, JID,
|
|
<<"current">>, [El], PubOpts, all) of
|
|
{result, _} -> ok;
|
|
{error, _} = Err -> Err
|
|
end
|
|
end;
|
|
false ->
|
|
ok
|
|
end.
|
|
|
|
-spec pubsub_publish_item(binary(), binary(), jid(), jid(),
|
|
binary(), [xmlel()]) -> any().
|
|
pubsub_publish_item(LServer, ?NS_STORAGE_BOOKMARKS,
|
|
#jid{luser = LUser, lserver = LServer} = From,
|
|
#jid{luser = LUser, lserver = LServer},
|
|
_ItemId, [Payload|_]) ->
|
|
set_data(From, [{?NS_STORAGE_BOOKMARKS, Payload}], false);
|
|
pubsub_publish_item(_, _, _, _, _, _) ->
|
|
ok.
|
|
|
|
%%%===================================================================
|
|
%%% Commands
|
|
%%%===================================================================
|
|
-spec get_commands_spec() -> [ejabberd_commands()].
|
|
get_commands_spec() ->
|
|
[#ejabberd_commands{name = bookmarks_to_pep, tags = [private],
|
|
desc = "Export private XML storage bookmarks to PEP",
|
|
module = ?MODULE, function = bookmarks_to_pep,
|
|
args = [{user, binary}, {host, binary}],
|
|
args_rename = [{server, host}],
|
|
args_desc = ["Username", "Server"],
|
|
args_example = [<<"bob">>, <<"example.com">>],
|
|
result = {res, restuple},
|
|
result_desc = "Result tuple",
|
|
result_example = {ok, <<"Bookmarks exported">>}}].
|
|
|
|
-spec bookmarks_to_pep(binary(), binary())
|
|
-> {ok, binary()} | {error, binary()}.
|
|
bookmarks_to_pep(User, Server) ->
|
|
LUser = jid:nodeprep(User),
|
|
LServer = jid:nameprep(Server),
|
|
Mod = gen_mod:db_mod(LServer, ?MODULE),
|
|
Res = case use_cache(Mod, LServer) of
|
|
true ->
|
|
ets_cache:lookup(
|
|
?PRIVATE_CACHE, {LUser, LServer, ?NS_STORAGE_BOOKMARKS},
|
|
fun() ->
|
|
Mod:get_data(LUser, LServer, ?NS_STORAGE_BOOKMARKS)
|
|
end);
|
|
false ->
|
|
Mod:get_data(LUser, LServer, ?NS_STORAGE_BOOKMARKS)
|
|
end,
|
|
case Res of
|
|
{ok, El} ->
|
|
Data = [{?NS_STORAGE_BOOKMARKS, El}],
|
|
case publish_data(jid:make(User, Server), Data) of
|
|
ok ->
|
|
{ok, <<"Bookmarks exported to PEP node">>};
|
|
{error, Err} ->
|
|
{error, xmpp:format_stanza_error(Err)}
|
|
end;
|
|
_ ->
|
|
{error, <<"Cannot retrieve bookmarks from private XML storage">>}
|
|
end.
|
|
|
|
%%%===================================================================
|
|
%%% Cache
|
|
%%%===================================================================
|
|
-spec delete_cache(module(), binary(), binary(), [{binary(), xmlel()}]) -> ok.
|
|
delete_cache(Mod, LUser, LServer, Data) ->
|
|
case use_cache(Mod, LServer) of
|
|
true ->
|
|
Nodes = cache_nodes(Mod, LServer),
|
|
lists:foreach(
|
|
fun({NS, _}) ->
|
|
ets_cache:delete(?PRIVATE_CACHE,
|
|
{LUser, LServer, NS},
|
|
Nodes)
|
|
end, Data);
|
|
false ->
|
|
ok
|
|
end.
|
|
|
|
-spec init_cache(module(), binary(), gen_mod:opts()) -> ok.
|
|
init_cache(Mod, Host, Opts) ->
|
|
case use_cache(Mod, Host) of
|
|
true ->
|
|
CacheOpts = cache_opts(Opts),
|
|
ets_cache:new(?PRIVATE_CACHE, CacheOpts);
|
|
false ->
|
|
ets_cache:delete(?PRIVATE_CACHE)
|
|
end.
|
|
|
|
-spec cache_opts(gen_mod:opts()) -> [proplists:property()].
|
|
cache_opts(Opts) ->
|
|
MaxSize = mod_private_opt:cache_size(Opts),
|
|
CacheMissed = mod_private_opt:cache_missed(Opts),
|
|
LifeTime = mod_private_opt:cache_life_time(Opts),
|
|
[{max_size, MaxSize}, {cache_missed, CacheMissed}, {life_time, LifeTime}].
|
|
|
|
-spec use_cache(module(), binary()) -> boolean().
|
|
use_cache(Mod, Host) ->
|
|
case erlang:function_exported(Mod, use_cache, 1) of
|
|
true -> Mod:use_cache(Host);
|
|
false -> mod_private_opt:use_cache(Host)
|
|
end.
|
|
|
|
-spec cache_nodes(module(), binary()) -> [node()].
|
|
cache_nodes(Mod, Host) ->
|
|
case erlang:function_exported(Mod, cache_nodes, 1) of
|
|
true -> Mod:cache_nodes(Host);
|
|
false -> ejabberd_cluster:get_nodes()
|
|
end.
|
|
|
|
%%%===================================================================
|
|
%%% Import/Export
|
|
%%%===================================================================
|
|
import_info() ->
|
|
[{<<"private_storage">>, 4}].
|
|
|
|
import_start(LServer, DBType) ->
|
|
Mod = gen_mod:db_mod(DBType, ?MODULE),
|
|
Mod:init(LServer, []).
|
|
|
|
export(LServer) ->
|
|
Mod = gen_mod:db_mod(LServer, ?MODULE),
|
|
Mod:export(LServer).
|
|
|
|
import(LServer, {sql, _}, DBType, Tab, L) ->
|
|
Mod = gen_mod:db_mod(DBType, ?MODULE),
|
|
Mod:import(LServer, Tab, L).
|