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xmpp.chapril.org-ejabberd/src/mod_vcard.erl

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%%%----------------------------------------------------------------------
%%% File : mod_vcard.erl
%%% Author : Alexey Shchepin <alexey@process-one.net>
%%% Purpose : Vcard management
%%% Created : 2 Jan 2003 by Alexey Shchepin <alexey@process-one.net>
%%%
%%%
%%% ejabberd, Copyright (C) 2002-2021 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_vcard).
-author('alexey@process-one.net').
-protocol({xep, 54, '1.2'}).
-protocol({xep, 55, '1.3'}).
-behaviour(gen_server).
-behaviour(gen_mod).
-export([start/2, stop/1, get_sm_features/5, mod_options/1, mod_doc/0,
process_local_iq/1, process_sm_iq/1, string2lower/1,
remove_user/2, export/1, import_info/0, import/5, import_start/2,
depends/2, process_search/1, process_vcard/1, get_vcard/2,
disco_items/5, disco_features/5, disco_identity/5,
vcard_iq_set/1, mod_opt_type/1, set_vcard/3, make_vcard_search/4]).
-export([init/1, handle_call/3, handle_cast/2,
handle_info/2, terminate/2, code_change/3]).
-export([route/1]).
-include("logger.hrl").
-include_lib("xmpp/include/xmpp.hrl").
-include("mod_vcard.hrl").
-include("translate.hrl").
-include("ejabberd_stacktrace.hrl").
-define(VCARD_CACHE, vcard_cache).
-callback init(binary(), gen_mod:opts()) -> any().
-callback stop(binary()) -> any().
-callback import(binary(), binary(), [binary()]) -> ok.
-callback get_vcard(binary(), binary()) -> {ok, [xmlel()]} | error.
-callback set_vcard(binary(), binary(),
xmlel(), #vcard_search{}) -> {atomic, any()}.
-callback search_fields(binary()) -> [{binary(), binary()}].
-callback search_reported(binary()) -> [{binary(), binary()}].
-callback search(binary(), [{binary(), [binary()]}], boolean(),
infinity | pos_integer()) -> [{binary(), binary()}].
-callback remove_user(binary(), binary()) -> {atomic, any()}.
-callback is_search_supported(binary()) -> boolean().
-callback use_cache(binary()) -> boolean().
-callback cache_nodes(binary()) -> [node()].
-optional_callbacks([use_cache/1, cache_nodes/1]).
-record(state, {hosts :: [binary()], server_host :: binary()}).
%%====================================================================
%% gen_mod callbacks
%%====================================================================
start(Host, Opts) ->
gen_mod:start_child(?MODULE, Host, Opts).
stop(Host) ->
gen_mod:stop_child(?MODULE, Host).
%%====================================================================
%% gen_server callbacks
%%====================================================================
init([Host|_]) ->
process_flag(trap_exit, true),
Opts = gen_mod:get_module_opts(Host, ?MODULE),
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),
gen_iq_handler:add_iq_handler(ejabberd_local, Host,
?NS_VCARD, ?MODULE, process_local_iq),
gen_iq_handler:add_iq_handler(ejabberd_sm, Host,
?NS_VCARD, ?MODULE, process_sm_iq),
ejabberd_hooks:add(disco_sm_features, Host, ?MODULE,
get_sm_features, 50),
ejabberd_hooks:add(vcard_iq_set, Host, ?MODULE, vcard_iq_set, 50),
MyHosts = gen_mod:get_opt_hosts(Opts),
Search = mod_vcard_opt:search(Opts),
if Search ->
lists:foreach(
fun(MyHost) ->
ejabberd_hooks:add(
disco_local_items, MyHost, ?MODULE, disco_items, 100),
ejabberd_hooks:add(
disco_local_features, MyHost, ?MODULE, disco_features, 100),
ejabberd_hooks:add(
disco_local_identity, MyHost, ?MODULE, disco_identity, 100),
gen_iq_handler:add_iq_handler(
ejabberd_local, MyHost, ?NS_SEARCH, ?MODULE, process_search),
gen_iq_handler:add_iq_handler(
ejabberd_local, MyHost, ?NS_VCARD, ?MODULE, process_vcard),
gen_iq_handler:add_iq_handler(
ejabberd_local, MyHost, ?NS_DISCO_ITEMS, mod_disco,
process_local_iq_items),
gen_iq_handler:add_iq_handler(
ejabberd_local, MyHost, ?NS_DISCO_INFO, mod_disco,
process_local_iq_info),
case Mod:is_search_supported(Host) of
false ->
?WARNING_MSG("vCard search functionality is "
"not implemented for ~ts backend",
[mod_vcard_opt:db_type(Opts)]);
true ->
ejabberd_router:register_route(
MyHost, Host, {apply, ?MODULE, route})
end
end, MyHosts);
true ->
ok
end,
{ok, #state{hosts = MyHosts, server_host = Host}}.
handle_call(Call, From, State) ->
?WARNING_MSG("Unexpected call from ~p: ~p", [From, Call]),
{noreply, State}.
handle_cast(Cast, State) ->
?WARNING_MSG("Unexpected cast: ~p", [Cast]),
{noreply, State}.
handle_info({route, Packet}, State) ->
try route(Packet)
catch ?EX_RULE(Class, Reason, St) ->
StackTrace = ?EX_STACK(St),
?ERROR_MSG("Failed to route packet:~n~ts~n** ~ts",
[xmpp:pp(Packet),
misc:format_exception(2, Class, Reason, StackTrace)])
end,
{noreply, State};
handle_info(Info, State) ->
?WARNING_MSG("Unexpected info: ~p", [Info]),
{noreply, State}.
terminate(_Reason, #state{hosts = MyHosts, server_host = Host}) ->
ejabberd_hooks:delete(remove_user, Host, ?MODULE, remove_user, 50),
gen_iq_handler:remove_iq_handler(ejabberd_local, Host, ?NS_VCARD),
gen_iq_handler:remove_iq_handler(ejabberd_sm, Host, ?NS_VCARD),
ejabberd_hooks:delete(disco_sm_features, Host, ?MODULE, get_sm_features, 50),
ejabberd_hooks:delete(vcard_iq_set, Host, ?MODULE, vcard_iq_set, 50),
Mod = gen_mod:db_mod(Host, ?MODULE),
Mod:stop(Host),
lists:foreach(
fun(MyHost) ->
ejabberd_router:unregister_route(MyHost),
ejabberd_hooks:delete(disco_local_items, MyHost, ?MODULE, disco_items, 100),
ejabberd_hooks:delete(disco_local_features, MyHost, ?MODULE, disco_features, 100),
ejabberd_hooks:delete(disco_local_identity, MyHost, ?MODULE, disco_identity, 100),
gen_iq_handler:remove_iq_handler(ejabberd_local, MyHost, ?NS_SEARCH),
gen_iq_handler:remove_iq_handler(ejabberd_local, MyHost, ?NS_VCARD),
gen_iq_handler:remove_iq_handler(ejabberd_local, MyHost, ?NS_DISCO_ITEMS),
gen_iq_handler:remove_iq_handler(ejabberd_local, MyHost, ?NS_DISCO_INFO)
end, MyHosts).
code_change(_OldVsn, State, _Extra) ->
{ok, State}.
-spec route(stanza()) -> ok.
route(#iq{} = IQ) ->
ejabberd_router:process_iq(IQ);
route(_) ->
ok.
-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, Node, _Lang) ->
case Node of
<<"">> ->
case Acc of
{result, Features} ->
{result, [?NS_VCARD | Features]};
empty -> {result, [?NS_VCARD]}
end;
_ -> Acc
end.
-spec process_local_iq(iq()) -> iq().
process_local_iq(#iq{type = set, lang = Lang} = IQ) ->
Txt = ?T("Value 'set' of 'type' attribute is not allowed"),
xmpp:make_error(IQ, xmpp:err_not_allowed(Txt, Lang));
process_local_iq(#iq{type = get, to = To, lang = Lang} = IQ) ->
ServerHost = ejabberd_router:host_of_route(To#jid.lserver),
VCard = case mod_vcard_opt:vcard(ServerHost) of
undefined ->
#vcard_temp{fn = <<"ejabberd">>,
url = ejabberd_config:get_uri(),
desc = misc:get_descr(Lang, ?T("Erlang XMPP Server")),
bday = <<"2002-11-16">>};
V ->
V
end,
xmpp:make_iq_result(IQ, VCard).
-spec process_sm_iq(iq()) -> iq().
process_sm_iq(#iq{type = set, lang = Lang, from = From} = IQ) ->
#jid{lserver = LServer} = From,
case lists:member(LServer, ejabberd_option:hosts()) of
true ->
case ejabberd_hooks:run_fold(vcard_iq_set, LServer, IQ, []) of
drop -> ignore;
#stanza_error{} = Err -> xmpp:make_error(IQ, Err);
_ -> xmpp:make_iq_result(IQ)
end;
false ->
Txt = ?T("The query is only allowed from local users"),
xmpp:make_error(IQ, xmpp:err_not_allowed(Txt, Lang))
end;
process_sm_iq(#iq{type = get, from = From, to = To, lang = Lang} = IQ) ->
#jid{luser = LUser, lserver = LServer} = To,
case get_vcard(LUser, LServer) of
error ->
Txt = ?T("Database failure"),
xmpp:make_error(IQ, xmpp:err_internal_server_error(Txt, Lang));
[] ->
xmpp:make_iq_result(IQ, #vcard_temp{});
Els ->
IQ#iq{type = result, to = From, from = To, sub_els = Els}
end.
-spec process_vcard(iq()) -> iq().
process_vcard(#iq{type = set, lang = Lang} = IQ) ->
Txt = ?T("Value 'set' of 'type' attribute is not allowed"),
xmpp:make_error(IQ, xmpp:err_not_allowed(Txt, Lang));
process_vcard(#iq{type = get, lang = Lang} = IQ) ->
xmpp:make_iq_result(
IQ, #vcard_temp{fn = <<"ejabberd/mod_vcard">>,
url = ejabberd_config:get_uri(),
desc = misc:get_descr(Lang, ?T("ejabberd vCard module"))}).
-spec process_search(iq()) -> iq().
process_search(#iq{type = get, to = To, lang = Lang} = IQ) ->
ServerHost = ejabberd_router:host_of_route(To#jid.lserver),
xmpp:make_iq_result(IQ, mk_search_form(To, ServerHost, Lang));
process_search(#iq{type = set, to = To, lang = Lang,
sub_els = [#search{xdata = #xdata{type = submit,
fields = Fs}}]} = IQ) ->
ServerHost = ejabberd_router:host_of_route(To#jid.lserver),
ResultXData = search_result(Lang, To, ServerHost, Fs),
xmpp:make_iq_result(IQ, #search{xdata = ResultXData});
process_search(#iq{type = set, lang = Lang} = IQ) ->
Txt = ?T("Incorrect data form"),
xmpp:make_error(IQ, xmpp:err_bad_request(Txt, Lang)).
-spec disco_items({error, stanza_error()} | {result, [disco_item()]} | empty,
jid(), jid(), binary(), binary()) ->
{error, stanza_error()} | {result, [disco_item()]}.
disco_items(empty, _From, _To, <<"">>, _Lang) ->
{result, []};
disco_items(empty, _From, _To, _Node, Lang) ->
{error, xmpp:err_item_not_found(?T("No services available"), Lang)};
disco_items(Acc, _From, _To, _Node, _Lang) ->
Acc.
-spec disco_features({error, stanza_error()} | {result, [binary()]} | empty,
jid(), jid(), binary(), binary()) ->
{error, stanza_error()} | {result, [binary()]}.
disco_features({error, _Error} = Acc, _From, _To, _Node, _Lang) ->
Acc;
disco_features(Acc, _From, _To, <<"">>, _Lang) ->
Features = case Acc of
{result, Fs} -> Fs;
empty -> []
end,
{result, [?NS_DISCO_INFO, ?NS_DISCO_ITEMS,
?NS_VCARD, ?NS_SEARCH | Features]};
disco_features(empty, _From, _To, _Node, Lang) ->
Txt = ?T("No features available"),
{error, xmpp:err_item_not_found(Txt, Lang)};
disco_features(Acc, _From, _To, _Node, _Lang) ->
Acc.
-spec disco_identity([identity()], jid(), jid(),
binary(), binary()) -> [identity()].
disco_identity(Acc, _From, To, <<"">>, Lang) ->
Host = ejabberd_router:host_of_route(To#jid.lserver),
Name = mod_vcard_opt:name(Host),
[#identity{category = <<"directory">>,
type = <<"user">>,
name = translate:translate(Lang, Name)}|Acc];
disco_identity(Acc, _From, _To, _Node, _Lang) ->
Acc.
-spec get_vcard(binary(), binary()) -> [xmlel()] | error.
get_vcard(LUser, LServer) ->
Mod = gen_mod:db_mod(LServer, ?MODULE),
Result = case use_cache(Mod, LServer) of
true ->
ets_cache:lookup(
?VCARD_CACHE, {LUser, LServer},
fun() -> Mod:get_vcard(LUser, LServer) end);
false ->
Mod:get_vcard(LUser, LServer)
end,
case Result of
{ok, Els} -> Els;
error -> error
end.
-spec make_vcard_search(binary(), binary(), binary(), xmlel()) -> #vcard_search{}.
make_vcard_search(User, LUser, LServer, VCARD) ->
FN = fxml:get_path_s(VCARD, [{elem, <<"FN">>}, cdata]),
Family = fxml:get_path_s(VCARD,
[{elem, <<"N">>}, {elem, <<"FAMILY">>}, cdata]),
Given = fxml:get_path_s(VCARD,
[{elem, <<"N">>}, {elem, <<"GIVEN">>}, cdata]),
Middle = fxml:get_path_s(VCARD,
[{elem, <<"N">>}, {elem, <<"MIDDLE">>}, cdata]),
Nickname = fxml:get_path_s(VCARD,
[{elem, <<"NICKNAME">>}, cdata]),
BDay = fxml:get_path_s(VCARD,
[{elem, <<"BDAY">>}, cdata]),
CTRY = fxml:get_path_s(VCARD,
[{elem, <<"ADR">>}, {elem, <<"CTRY">>}, cdata]),
Locality = fxml:get_path_s(VCARD,
[{elem, <<"ADR">>}, {elem, <<"LOCALITY">>},
cdata]),
EMail1 = fxml:get_path_s(VCARD,
[{elem, <<"EMAIL">>}, {elem, <<"USERID">>}, cdata]),
EMail2 = fxml:get_path_s(VCARD,
[{elem, <<"EMAIL">>}, cdata]),
OrgName = fxml:get_path_s(VCARD,
[{elem, <<"ORG">>}, {elem, <<"ORGNAME">>}, cdata]),
OrgUnit = fxml:get_path_s(VCARD,
[{elem, <<"ORG">>}, {elem, <<"ORGUNIT">>}, cdata]),
EMail = case EMail1 of
<<"">> -> EMail2;
_ -> EMail1
end,
LFN = string2lower(FN),
LFamily = string2lower(Family),
LGiven = string2lower(Given),
LMiddle = string2lower(Middle),
LNickname = string2lower(Nickname),
LBDay = string2lower(BDay),
LCTRY = string2lower(CTRY),
LLocality = string2lower(Locality),
LEMail = string2lower(EMail),
LOrgName = string2lower(OrgName),
LOrgUnit = string2lower(OrgUnit),
US = {LUser, LServer},
#vcard_search{us = US,
user = {User, LServer},
luser = LUser, fn = FN,
lfn = LFN,
family = Family,
lfamily = LFamily,
given = Given,
lgiven = LGiven,
middle = Middle,
lmiddle = LMiddle,
nickname = Nickname,
lnickname = LNickname,
bday = BDay,
lbday = LBDay,
ctry = CTRY,
lctry = LCTRY,
locality = Locality,
llocality = LLocality,
email = EMail,
lemail = LEMail,
orgname = OrgName,
lorgname = LOrgName,
orgunit = OrgUnit,
lorgunit = LOrgUnit}.
-spec vcard_iq_set(iq()) -> iq() | {stop, stanza_error()}.
vcard_iq_set(#iq{from = From, lang = Lang, sub_els = [VCard]} = IQ) ->
#jid{user = User, lserver = LServer} = From,
case set_vcard(User, LServer, VCard) of
{error, badarg} ->
%% Should not be here?
Txt = ?T("Nodeprep has failed"),
{stop, xmpp:err_internal_server_error(Txt, Lang)};
ok ->
IQ
end;
vcard_iq_set(Acc) ->
Acc.
-spec set_vcard(binary(), binary(), xmlel() | vcard_temp()) -> {error, badarg} | ok.
set_vcard(User, LServer, VCARD) ->
case jid:nodeprep(User) of
error ->
{error, badarg};
LUser ->
VCardEl = xmpp:encode(VCARD),
VCardSearch = make_vcard_search(User, LUser, LServer, VCardEl),
Mod = gen_mod:db_mod(LServer, ?MODULE),
Mod:set_vcard(LUser, LServer, VCardEl, VCardSearch),
ets_cache:delete(?VCARD_CACHE, {LUser, LServer},
cache_nodes(Mod, LServer)),
ok
end.
-spec string2lower(binary()) -> binary().
string2lower(String) ->
case stringprep:tolower(String) of
Lower when is_binary(Lower) -> Lower;
error -> str:to_lower(String)
end.
-spec mk_tfield(binary(), binary(), binary()) -> xdata_field().
mk_tfield(Label, Var, Lang) ->
#xdata_field{type = 'text-single',
label = translate:translate(Lang, Label),
var = Var}.
-spec mk_field(binary(), binary()) -> xdata_field().
mk_field(Var, Val) ->
#xdata_field{var = Var, values = [Val]}.
-spec mk_search_form(jid(), binary(), binary()) -> search().
mk_search_form(JID, ServerHost, Lang) ->
Title = <<(translate:translate(Lang, ?T("Search users in ")))/binary,
(jid:encode(JID))/binary>>,
Mod = gen_mod:db_mod(ServerHost, ?MODULE),
SearchFields = Mod:search_fields(ServerHost),
Fs = [mk_tfield(Label, Var, Lang) || {Label, Var} <- SearchFields],
X = #xdata{type = form,
title = Title,
instructions = [make_instructions(Mod, Lang)],
fields = Fs},
#search{instructions =
translate:translate(
Lang, ?T("You need an x:data capable client to search")),
xdata = X}.
-spec make_instructions(module(), binary()) -> binary().
make_instructions(Mod, Lang) ->
Fill = translate:translate(
Lang,
?T("Fill in the form to search for any matching "
"XMPP User")),
Add = translate:translate(
Lang,
?T(" (Add * to the end of field to match substring)")),
case Mod of
mod_vcard_mnesia -> Fill;
_ -> str:concat(Fill, Add)
end.
-spec search_result(binary(), jid(), binary(), [xdata_field()]) -> xdata().
search_result(Lang, JID, ServerHost, XFields) ->
Mod = gen_mod:db_mod(ServerHost, ?MODULE),
Reported = [mk_tfield(Label, Var, Lang) ||
{Label, Var} <- Mod:search_reported(ServerHost)],
#xdata{type = result,
title = <<(translate:translate(Lang,
?T("Search Results for ")))/binary,
(jid:encode(JID))/binary>>,
reported = Reported,
items = lists:map(fun (Item) -> item_to_field(Item) end,
search(ServerHost, XFields))}.
-spec item_to_field([{binary(), binary()}]) -> [xdata_field()].
item_to_field(Items) ->
[mk_field(Var, Value) || {Var, Value} <- Items].
-spec search(binary(), [xdata_field()]) -> [binary()].
search(LServer, XFields) ->
Data = [{Var, Vals} || #xdata_field{var = Var, values = Vals} <- XFields],
Mod = gen_mod:db_mod(LServer, ?MODULE),
AllowReturnAll = mod_vcard_opt:allow_return_all(LServer),
MaxMatch = mod_vcard_opt:matches(LServer),
Mod:search(LServer, Data, AllowReturnAll, MaxMatch).
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-spec remove_user(binary(), binary()) -> ok.
remove_user(User, Server) ->
LUser = jid:nodeprep(User),
LServer = jid:nameprep(Server),
Mod = gen_mod:db_mod(LServer, ?MODULE),
Mod:remove_user(LUser, LServer),
ets_cache:delete(?VCARD_CACHE, {LUser, LServer}, cache_nodes(Mod, LServer)).
-spec init_cache(module(), binary(), gen_mod:opts()) -> ok.
init_cache(Mod, Host, Opts) ->
case use_cache(Mod, Host) of
true ->
CacheOpts = cache_opts(Host, Opts),
ets_cache:new(?VCARD_CACHE, CacheOpts);
false ->
ets_cache:delete(?VCARD_CACHE)
end.
-spec cache_opts(binary(), gen_mod:opts()) -> [proplists:property()].
cache_opts(_Host, Opts) ->
MaxSize = mod_vcard_opt:cache_size(Opts),
CacheMissed = mod_vcard_opt:cache_missed(Opts),
LifeTime = mod_vcard_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_vcard_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_info() ->
[{<<"vcard">>, 3}, {<<"vcard_search">>, 24}].
import_start(LServer, DBType) ->
Mod = gen_mod:db_mod(DBType, ?MODULE),
Mod:init(LServer, []).
import(LServer, {sql, _}, DBType, Tab, L) ->
Mod = gen_mod:db_mod(DBType, ?MODULE),
Mod:import(LServer, Tab, L).
export(LServer) ->
Mod = gen_mod:db_mod(LServer, ?MODULE),
Mod:export(LServer).
depends(_Host, _Opts) ->
[].
mod_opt_type(allow_return_all) ->
econf:bool();
mod_opt_type(name) ->
econf:binary();
mod_opt_type(matches) ->
econf:pos_int(infinity);
mod_opt_type(search) ->
econf:bool();
mod_opt_type(host) ->
econf:host();
mod_opt_type(hosts) ->
econf:hosts();
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_opt_type(vcard) ->
econf:vcard_temp().
mod_options(Host) ->
[{allow_return_all, false},
{host, <<"vjud.", Host/binary>>},
{hosts, []},
{matches, 30},
{search, false},
{name, ?T("vCard User Search")},
{vcard, undefined},
{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)}].
mod_doc() ->
#{desc =>
?T("This module allows end users to store and retrieve "
"their vCard, and to retrieve other users vCards, "
"as defined in https://xmpp.org/extensions/xep-0054.html"
"[XEP-0054: vcard-temp]. The module also implements an "
"uncomplicated Jabber User Directory based on the vCards "
"of these users. Moreover, it enables the server to send "
"its vCard when queried."),
opts =>
[{allow_return_all,
#{value => "true | false",
desc =>
?T("This option enables you to specify if search "
"operations with empty input fields should return "
"all users who added some information to their vCard. "
"The default value is 'false'.")}},
{host,
#{desc => ?T("Deprecated. Use 'hosts' instead.")}},
{hosts,
#{value => ?T("[Host, ...]"),
desc =>
?T("This option defines the Jabber IDs of the service. "
"If the 'hosts' option is not specified, the only Jabber ID will "
"be the hostname of the virtual host with the prefix \"vjud.\". "
"The keyword '@HOST@' is replaced with the real virtual host name.")}},
{name,
#{value => ?T("Name"),
desc =>
?T("The value of the service name. This name is only visible in some "
"clients that support https://xmpp.org/extensions/xep-0030.html"
"[XEP-0030: Service Discovery]. The default is 'vCard User Search'.")}},
{matches,
#{value => "pos_integer() | infinity",
desc =>
?T("With this option, the number of reported search results "
"can be limited. If the option's value is set to 'infinity', "
"all search results are reported. The default value is '30'.")}},
{search,
#{value => "true | false",
desc =>
?T("This option specifies whether the search functionality "
"is enabled or not. If disabled, the options 'hosts', 'name' "
"and 'vcard' will be ignored and the Jabber User Directory "
"service will not appear in the Service Discovery item list. "
"The default value is 'false'.")}},
{db_type,
#{value => "mnesia | sql | ldap",
desc =>
?T("Same as top-level 'default_db' option, but applied to this module only.")}},
{use_cache,
#{value => "true | false",
desc =>
?T("Same as top-level 'use_cache' option, but applied to this module only.")}},
{cache_size,
#{value => "pos_integer() | infinity",
desc =>
?T("Same as top-level 'cache_size' option, but applied to this module only.")}},
{cache_missed,
#{value => "true | false",
desc =>
?T("Same as top-level 'cache_missed' option, but applied to this module only.")}},
{cache_life_time,
#{value => "timeout()",
desc =>
?T("Same as top-level 'cache_life_time' option, but applied to this module only.")}},
{vcard,
#{value => ?T("vCard"),
desc =>
?T("A custom vCard of the server that will be displayed "
"by some XMPP clients in Service Discovery. The value of "
"'vCard' is a YAML map constructed from an XML representation "
"of vCard. Since the representation has no attributes, "
"the mapping is straightforward."),
example =>
[{?T("For example, the following XML representation of vCard:"),
["<vCard xmlns='vcard-temp'>",
" <FN>Conferences</FN>",
" <ADR>",
" <WORK/>",
" <STREET>Elm Street</STREET>",
" </ADR>",
"</vCard>"]},
{?T("will be translated to:"),
["vcard:",
" fn: Conferences",
" adr:",
" -",
" work: true",
" street: Elm Street"]}]}}]}.
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