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

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%%%-------------------------------------------------------------------
%%% File : mod_vcard_ldap.erl
%%% Author : Evgeny Khramtsov <ekhramtsov@process-one.net>
%%% Created : 29 Jul 2016 by Evgeny Khramtsov <ekhramtsov@process-one.net>
%%%
%%%
%%% ejabberd, Copyright (C) 2002-2017 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_ldap).
-behaviour(ejabberd_config).
-behaviour(gen_server).
-behaviour(mod_vcard).
%% API
-export([start_link/2]).
-export([init/2, stop/1, get_vcard/2, set_vcard/4, search/4,
remove_user/2, import/3, search_fields/1, search_reported/1,
mod_opt_type/1, opt_type/1]).
-export([is_search_supported/1]).
%% gen_server callbacks
-export([init/1, handle_call/3, handle_cast/2, handle_info/2,
terminate/2, code_change/3]).
-include("ejabberd.hrl").
-include("logger.hrl").
-include("eldap.hrl").
-include("xmpp.hrl").
-define(PROCNAME, ejabberd_mod_vcard_ldap).
-record(state,
{serverhost = <<"">> :: binary(),
myhost = <<"">> :: binary(),
eldap_id = <<"">> :: binary(),
search = false :: boolean(),
servers = [] :: [binary()],
backups = [] :: [binary()],
port = ?LDAP_PORT :: inet:port_number(),
tls_options = [] :: list(),
dn = <<"">> :: binary(),
base = <<"">> :: binary(),
password = <<"">> :: binary(),
uids = [] :: [{binary()} | {binary(), binary()}],
vcard_map = [] :: [{binary(), binary(), [binary()]}],
vcard_map_attrs = [] :: [binary()],
user_filter = <<"">> :: binary(),
search_filter :: eldap:filter(),
search_fields = [] :: [{binary(), binary()}],
search_reported = [] :: [{binary(), binary()}],
search_reported_attrs = [] :: [binary()],
deref_aliases = never :: never | searching | finding | always,
matches = 0 :: non_neg_integer()}).
%%%===================================================================
%%% API
%%%===================================================================
start_link(Host, Opts) ->
Proc = gen_mod:get_module_proc(Host, ?PROCNAME),
gen_server:start_link({local, Proc}, ?MODULE, [Host, Opts], []).
init(Host, Opts) ->
Proc = gen_mod:get_module_proc(Host, ?PROCNAME),
ChildSpec = {Proc, {?MODULE, start_link, [Host, Opts]},
transient, 1000, worker, [?MODULE]},
supervisor:start_child(ejabberd_sup, ChildSpec).
stop(Host) ->
Proc = gen_mod:get_module_proc(Host, ?PROCNAME),
gen_server:call(Proc, stop),
supervisor:terminate_child(ejabberd_sup, Proc),
supervisor:delete_child(ejabberd_sup, Proc).
is_search_supported(_LServer) ->
true.
get_vcard(LUser, LServer) ->
{ok, State} = eldap_utils:get_state(LServer, ?PROCNAME),
VCardMap = State#state.vcard_map,
case find_ldap_user(LUser, State) of
#eldap_entry{attributes = Attributes} ->
VCard = ldap_attributes_to_vcard(Attributes, VCardMap,
{LUser, LServer}),
[xmpp:encode(VCard)];
_ ->
[]
end.
set_vcard(_LUser, _LServer, _VCard, _VCardSearch) ->
{atomic, not_implemented}.
search_fields(LServer) ->
{ok, State} = eldap_utils:get_state(LServer, ?PROCNAME),
State#state.search_fields.
search_reported(LServer) ->
{ok, State} = eldap_utils:get_state(LServer, ?PROCNAME),
State#state.search_reported.
search(LServer, Data, _AllowReturnAll, MaxMatch) ->
{ok, State} = eldap_utils:get_state(LServer, ?PROCNAME),
Base = State#state.base,
SearchFilter = State#state.search_filter,
Eldap_ID = State#state.eldap_id,
UIDs = State#state.uids,
ReportedAttrs = State#state.search_reported_attrs,
Filter = eldap:'and'([SearchFilter,
eldap_utils:make_filter(Data, UIDs)]),
case eldap_pool:search(Eldap_ID,
[{base, Base}, {filter, Filter}, {limit, MaxMatch},
{deref_aliases, State#state.deref_aliases},
{attributes, ReportedAttrs}])
of
#eldap_search_result{entries = E} ->
search_items(E, State);
_ ->
[]
end.
search_items(Entries, State) ->
LServer = State#state.serverhost,
SearchReported = State#state.search_reported,
VCardMap = State#state.vcard_map,
UIDs = State#state.uids,
Attributes = lists:map(fun (E) ->
#eldap_entry{attributes = Attrs} = E, Attrs
end,
Entries),
lists:flatmap(
fun(Attrs) ->
case eldap_utils:find_ldap_attrs(UIDs, Attrs) of
{U, UIDAttrFormat} ->
case eldap_utils:get_user_part(U, UIDAttrFormat) of
{ok, Username} ->
case ejabberd_auth:is_user_exists(Username,
LServer) of
true ->
RFields = lists:map(
fun({_, VCardName}) ->
{VCardName,
map_vcard_attr(VCardName,
Attrs,
VCardMap,
{Username,
?MYNAME})}
end,
SearchReported),
J = <<Username/binary, $@, LServer/binary>>,
[{<<"jid">>, J} | RFields];
_ ->
[]
end;
_ ->
[]
end;
<<"">> ->
[]
end
end, Attributes).
remove_user(_User, _Server) ->
{atomic, not_implemented}.
import(_, _, _) ->
pass.
%%%===================================================================
%%% gen_server callbacks
%%%===================================================================
init([Host, Opts]) ->
State = parse_options(Host, Opts),
eldap_pool:start_link(State#state.eldap_id,
State#state.servers, State#state.backups,
State#state.port, State#state.dn,
State#state.password, State#state.tls_options),
{ok, State}.
handle_call(get_state, _From, State) ->
{reply, {ok, State}, State};
handle_call(_Request, _From, State) ->
Reply = ok,
{reply, Reply, State}.
handle_cast(_Msg, State) ->
{noreply, State}.
handle_info(_Info, State) ->
{noreply, State}.
terminate(_Reason, _State) ->
ok.
code_change(_OldVsn, State, _Extra) ->
{ok, State}.
%%%===================================================================
%%% Internal functions
%%%===================================================================
find_ldap_user(User, State) ->
Base = State#state.base,
RFC2254_Filter = State#state.user_filter,
Eldap_ID = State#state.eldap_id,
VCardAttrs = State#state.vcard_map_attrs,
case eldap_filter:parse(RFC2254_Filter,
[{<<"%u">>, User}])
of
{ok, EldapFilter} ->
case eldap_pool:search(Eldap_ID,
[{base, Base}, {filter, EldapFilter},
{deref_aliases, State#state.deref_aliases},
{attributes, VCardAttrs}])
of
#eldap_search_result{entries = [E | _]} -> E;
_ -> false
end;
_ -> false
end.
ldap_attributes_to_vcard(Attributes, VCardMap, UD) ->
Attrs = lists:map(fun ({VCardName, _, _}) ->
{stringprep:tolower(VCardName),
map_vcard_attr(VCardName, Attributes, VCardMap,
UD)}
end,
VCardMap),
lists:foldl(fun ldap_attribute_to_vcard/2, #vcard_temp{}, Attrs).
-spec ldap_attribute_to_vcard({binary(), binary()}, vcard_temp()) -> vcard_temp().
ldap_attribute_to_vcard({Attr, Value}, V) ->
Ts = V#vcard_temp.tel,
Es = V#vcard_temp.email,
N = case V#vcard_temp.n of
undefined -> #vcard_name{};
_ -> V#vcard_temp.n
end,
O = case V#vcard_temp.org of
undefined -> #vcard_org{};
_ -> V#vcard_temp.org
end,
A = case V#vcard_temp.adr of
[] -> #vcard_adr{};
As -> hd(As)
end,
case Attr of
<<"fn">> -> V#vcard_temp{fn = Value};
<<"nickname">> -> V#vcard_temp{nickname = Value};
<<"title">> -> V#vcard_temp{title = Value};
<<"bday">> -> V#vcard_temp{bday = Value};
<<"url">> -> V#vcard_temp{url = Value};
<<"desc">> -> V#vcard_temp{desc = Value};
<<"role">> -> V#vcard_temp{role = Value};
<<"tel">> -> V#vcard_temp{tel = [#vcard_tel{number = Value}|Ts]};
<<"email">> -> V#vcard_temp{email = [#vcard_email{userid = Value}|Es]};
<<"photo">> -> V#vcard_temp{photo = #vcard_photo{binval = Value}};
<<"family">> -> V#vcard_temp{n = N#vcard_name{family = Value}};
<<"given">> -> V#vcard_temp{n = N#vcard_name{given = Value}};
<<"middle">> -> V#vcard_temp{n = N#vcard_name{middle = Value}};
<<"orgname">> -> V#vcard_temp{org = O#vcard_org{name = Value}};
<<"orgunit">> -> V#vcard_temp{org = O#vcard_org{units = [Value]}};
<<"locality">> -> V#vcard_temp{adr = [A#vcard_adr{locality = Value}]};
<<"street">> -> V#vcard_temp{adr = [A#vcard_adr{street = Value}]};
<<"ctry">> -> V#vcard_temp{adr = [A#vcard_adr{ctry = Value}]};
<<"region">> -> V#vcard_temp{adr = [A#vcard_adr{region = Value}]};
<<"pcode">> -> V#vcard_temp{adr = [A#vcard_adr{pcode = Value}]};
_ -> V
end.
map_vcard_attr(VCardName, Attributes, Pattern, UD) ->
Res = lists:filter(fun ({Name, _, _}) ->
eldap_utils:case_insensitive_match(Name,
VCardName)
end,
Pattern),
case Res of
[{_, Str, Attrs}] ->
process_pattern(Str, UD,
[eldap_utils:get_ldap_attr(X, Attributes)
|| X <- Attrs]);
_ -> <<"">>
end.
process_pattern(Str, {User, Domain}, AttrValues) ->
eldap_filter:do_sub(Str,
[{<<"%u">>, User}, {<<"%d">>, Domain}] ++
[{<<"%s">>, V, 1} || V <- AttrValues]).
default_vcard_map() ->
[{<<"NICKNAME">>, <<"%u">>, []},
{<<"FN">>, <<"%s">>, [<<"displayName">>]},
{<<"FAMILY">>, <<"%s">>, [<<"sn">>]},
{<<"GIVEN">>, <<"%s">>, [<<"givenName">>]},
{<<"MIDDLE">>, <<"%s">>, [<<"initials">>]},
{<<"ORGNAME">>, <<"%s">>, [<<"o">>]},
{<<"ORGUNIT">>, <<"%s">>, [<<"ou">>]},
{<<"CTRY">>, <<"%s">>, [<<"c">>]},
{<<"LOCALITY">>, <<"%s">>, [<<"l">>]},
{<<"STREET">>, <<"%s">>, [<<"street">>]},
{<<"REGION">>, <<"%s">>, [<<"st">>]},
{<<"PCODE">>, <<"%s">>, [<<"postalCode">>]},
{<<"TITLE">>, <<"%s">>, [<<"title">>]},
{<<"URL">>, <<"%s">>, [<<"labeleduri">>]},
{<<"DESC">>, <<"%s">>, [<<"description">>]},
{<<"TEL">>, <<"%s">>, [<<"telephoneNumber">>]},
{<<"EMAIL">>, <<"%s">>, [<<"mail">>]},
{<<"BDAY">>, <<"%s">>, [<<"birthDay">>]},
{<<"ROLE">>, <<"%s">>, [<<"employeeType">>]},
{<<"PHOTO">>, <<"%s">>, [<<"jpegPhoto">>]}].
default_search_fields() ->
[{<<"User">>, <<"%u">>},
{<<"Full Name">>, <<"displayName">>},
{<<"Given Name">>, <<"givenName">>},
{<<"Middle Name">>, <<"initials">>},
{<<"Family Name">>, <<"sn">>},
{<<"Nickname">>, <<"%u">>},
{<<"Birthday">>, <<"birthDay">>},
{<<"Country">>, <<"c">>},
{<<"City">>, <<"l">>},
{<<"Email">>, <<"mail">>},
{<<"Organization Name">>, <<"o">>},
{<<"Organization Unit">>, <<"ou">>}].
default_search_reported() ->
[{<<"Full Name">>, <<"FN">>},
{<<"Given Name">>, <<"FIRST">>},
{<<"Middle Name">>, <<"MIDDLE">>},
{<<"Family Name">>, <<"LAST">>},
{<<"Nickname">>, <<"NICK">>},
{<<"Birthday">>, <<"BDAY">>},
{<<"Country">>, <<"CTRY">>},
{<<"City">>, <<"LOCALITY">>},
{<<"Email">>, <<"EMAIL">>},
{<<"Organization Name">>, <<"ORGNAME">>},
{<<"Organization Unit">>, <<"ORGUNIT">>}].
parse_options(Host, Opts) ->
MyHost = gen_mod:get_opt_host(Host, Opts,
<<"vjud.@HOST@">>),
Search = gen_mod:get_opt(search, Opts,
fun(B) when is_boolean(B) -> B end,
false),
Matches = gen_mod:get_opt(matches, Opts,
fun(infinity) -> 0;
(I) when is_integer(I), I>0 -> I
end, 30),
Eldap_ID = jlib:atom_to_binary(gen_mod:get_module_proc(Host, ?PROCNAME)),
Cfg = eldap_utils:get_config(Host, Opts),
UIDsTemp = gen_mod:get_opt(
{ldap_uids, Host}, Opts,
fun(Us) ->
lists:map(
fun({U, P}) ->
{iolist_to_binary(U),
iolist_to_binary(P)};
({U}) ->
{iolist_to_binary(U)}
end, Us)
end, [{<<"uid">>, <<"%u">>}]),
UIDs = eldap_utils:uids_domain_subst(Host, UIDsTemp),
SubFilter = eldap_utils:generate_subfilter(UIDs),
UserFilter = case gen_mod:get_opt(
{ldap_filter, Host}, Opts,
fun check_filter/1, <<"">>) of
<<"">> ->
SubFilter;
F ->
<<"(&", SubFilter/binary, F/binary, ")">>
end,
{ok, SearchFilter} =
eldap_filter:parse(eldap_filter:do_sub(UserFilter,
[{<<"%u">>, <<"*">>}])),
VCardMap = gen_mod:get_opt(ldap_vcard_map, Opts,
fun(Ls) ->
lists:map(
fun({S, [{P, L}]}) ->
{iolist_to_binary(S),
iolist_to_binary(P),
[iolist_to_binary(E)
|| E <- L]}
end, Ls)
end, default_vcard_map()),
SearchFields = gen_mod:get_opt(ldap_search_fields, Opts,
fun(Ls) ->
[{iolist_to_binary(S),
iolist_to_binary(P)}
|| {S, P} <- Ls]
end, default_search_fields()),
SearchReported = gen_mod:get_opt(ldap_search_reported, Opts,
fun(Ls) ->
[{iolist_to_binary(S),
iolist_to_binary(P)}
|| {S, P} <- Ls]
end, default_search_reported()),
UIDAttrs = [UAttr || {UAttr, _} <- UIDs],
VCardMapAttrs = lists:usort(lists:append([A
|| {_, _, A} <- VCardMap])
++ UIDAttrs),
SearchReportedAttrs = lists:usort(lists:flatmap(fun ({_,
N}) ->
case
lists:keysearch(N,
1,
VCardMap)
of
{value,
{_, _, L}} ->
L;
_ -> []
end
end,
SearchReported)
++ UIDAttrs),
#state{serverhost = Host, myhost = MyHost,
eldap_id = Eldap_ID, search = Search,
servers = Cfg#eldap_config.servers,
backups = Cfg#eldap_config.backups,
port = Cfg#eldap_config.port,
tls_options = Cfg#eldap_config.tls_options,
dn = Cfg#eldap_config.dn,
password = Cfg#eldap_config.password,
base = Cfg#eldap_config.base,
deref_aliases = Cfg#eldap_config.deref_aliases,
uids = UIDs, vcard_map = VCardMap,
vcard_map_attrs = VCardMapAttrs,
user_filter = UserFilter, search_filter = SearchFilter,
search_fields = SearchFields,
search_reported = SearchReported,
search_reported_attrs = SearchReportedAttrs,
matches = Matches}.
check_filter(F) ->
NewF = iolist_to_binary(F),
{ok, _} = eldap_filter:parse(NewF),
NewF.
mod_opt_type(ldap_filter) -> fun check_filter/1;
mod_opt_type(ldap_search_fields) ->
fun (Ls) ->
[{iolist_to_binary(S), iolist_to_binary(P)}
|| {S, P} <- Ls]
end;
mod_opt_type(ldap_search_reported) ->
fun (Ls) ->
[{iolist_to_binary(S), iolist_to_binary(P)}
|| {S, P} <- Ls]
end;
mod_opt_type(ldap_uids) ->
fun (Us) ->
lists:map(fun ({U, P}) ->
{iolist_to_binary(U), iolist_to_binary(P)};
({U}) -> {iolist_to_binary(U)}
end,
Us)
end;
mod_opt_type(ldap_vcard_map) ->
fun (Ls) ->
lists:map(fun ({S, [{P, L}]}) ->
{iolist_to_binary(S), iolist_to_binary(P),
[iolist_to_binary(E) || E <- L]}
end,
Ls)
end;
mod_opt_type(deref_aliases) ->
fun (never) -> never;
(searching) -> searching;
(finding) -> finding;
(always) -> always
end;
mod_opt_type(ldap_backups) ->
fun (L) -> [iolist_to_binary(H) || H <- L] end;
mod_opt_type(ldap_base) -> fun iolist_to_binary/1;
mod_opt_type(ldap_deref_aliases) ->
fun (never) -> never;
(searching) -> searching;
(finding) -> finding;
(always) -> always
end;
mod_opt_type(ldap_encrypt) ->
fun (tls) -> tls;
(starttls) -> starttls;
(none) -> none
end;
mod_opt_type(ldap_password) -> fun iolist_to_binary/1;
mod_opt_type(ldap_port) ->
fun (I) when is_integer(I), I > 0 -> I end;
mod_opt_type(ldap_rootdn) -> fun iolist_to_binary/1;
mod_opt_type(ldap_servers) ->
fun (L) -> [iolist_to_binary(H) || H <- L] end;
mod_opt_type(ldap_tls_cacertfile) ->
fun iolist_to_binary/1;
mod_opt_type(ldap_tls_certfile) ->
fun iolist_to_binary/1;
mod_opt_type(ldap_tls_depth) ->
fun (I) when is_integer(I), I >= 0 -> I end;
mod_opt_type(ldap_tls_verify) ->
fun (hard) -> hard;
(soft) -> soft;
(false) -> false
end;
mod_opt_type(_) ->
[ldap_filter, ldap_search_fields,
ldap_search_reported, ldap_uids, ldap_vcard_map,
deref_aliases, ldap_backups, ldap_base,
ldap_deref_aliases, ldap_encrypt, ldap_password,
ldap_port, ldap_rootdn, ldap_servers,
ldap_tls_cacertfile, ldap_tls_certfile, ldap_tls_depth,
ldap_tls_verify].
opt_type(ldap_filter) -> fun check_filter/1;
opt_type(ldap_uids) ->
fun (Us) ->
lists:map(fun ({U, P}) ->
{iolist_to_binary(U), iolist_to_binary(P)};
({U}) -> {iolist_to_binary(U)}
end,
Us)
end;
opt_type(_) ->
[ldap_filter, ldap_uids, deref_aliases, ldap_backups, ldap_base,
ldap_deref_aliases, ldap_encrypt, ldap_password,
ldap_port, ldap_rootdn, ldap_servers,
ldap_tls_cacertfile, ldap_tls_certfile, ldap_tls_depth,
ldap_tls_verify].
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