mirror of
https://github.com/processone/ejabberd.git
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488 lines
16 KiB
Erlang
488 lines
16 KiB
Erlang
%%%-------------------------------------------------------------------
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%%% File : mod_vcard_ldap.erl
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%%% Author : Evgeny Khramtsov <ekhramtsov@process-one.net>
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%%% Created : 29 Jul 2016 by Evgeny Khramtsov <ekhramtsov@process-one.net>
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%%%
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%%%
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%%% ejabberd, Copyright (C) 2002-2017 ProcessOne
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%%%
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%%% This program is free software; you can redistribute it and/or
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%%% modify it under the terms of the GNU General Public License as
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%%% published by the Free Software Foundation; either version 2 of the
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%%% License, or (at your option) any later version.
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%%%
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%%% This program is distributed in the hope that it will be useful,
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%%% but WITHOUT ANY WARRANTY; without even the implied warranty of
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%%% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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%%% General Public License for more details.
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%%%
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%%% You should have received a copy of the GNU General Public License along
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%%% with this program; if not, write to the Free Software Foundation, Inc.,
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%%% 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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%%%
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%%%----------------------------------------------------------------------
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-module(mod_vcard_ldap).
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-behaviour(gen_server).
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-behaviour(mod_vcard).
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%% API
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-export([start_link/2]).
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-export([init/2, stop/1, get_vcard/2, set_vcard/4, search/4,
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remove_user/2, import/3, search_fields/1, search_reported/1,
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mod_opt_type/1]).
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-export([is_search_supported/1]).
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%% gen_server callbacks
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-export([init/1, handle_call/3, handle_cast/2, handle_info/2,
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terminate/2, code_change/3]).
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-include("ejabberd.hrl").
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-include("logger.hrl").
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-include("eldap.hrl").
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-include("xmpp.hrl").
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-define(PROCNAME, ejabberd_mod_vcard_ldap).
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-record(state,
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{serverhost = <<"">> :: binary(),
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myhost = <<"">> :: binary(),
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eldap_id = <<"">> :: binary(),
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search = false :: boolean(),
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servers = [] :: [binary()],
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backups = [] :: [binary()],
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port = ?LDAP_PORT :: inet:port_number(),
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tls_options = [] :: list(),
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dn = <<"">> :: binary(),
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base = <<"">> :: binary(),
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password = <<"">> :: binary(),
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uids = [] :: [{binary()} | {binary(), binary()}],
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vcard_map = [] :: [{binary(), binary(), [binary()]}],
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vcard_map_attrs = [] :: [binary()],
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user_filter = <<"">> :: binary(),
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search_filter :: eldap:filter(),
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search_fields = [] :: [{binary(), binary()}],
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search_reported = [] :: [{binary(), binary()}],
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search_reported_attrs = [] :: [binary()],
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deref_aliases = never :: never | searching | finding | always,
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matches = 0 :: non_neg_integer()}).
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%%%===================================================================
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%%% API
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%%%===================================================================
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start_link(Host, Opts) ->
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Proc = gen_mod:get_module_proc(Host, ?PROCNAME),
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gen_server:start_link({local, Proc}, ?MODULE, [Host, Opts], []).
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init(Host, Opts) ->
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Proc = gen_mod:get_module_proc(Host, ?PROCNAME),
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ChildSpec = {Proc, {?MODULE, start_link, [Host, Opts]},
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transient, 1000, worker, [?MODULE]},
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supervisor:start_child(ejabberd_backend_sup, ChildSpec).
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stop(Host) ->
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Proc = gen_mod:get_module_proc(Host, ?PROCNAME),
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supervisor:terminate_child(ejabberd_backend_sup, Proc),
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supervisor:delete_child(ejabberd_backend_sup, Proc),
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ok.
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is_search_supported(_LServer) ->
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true.
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get_vcard(LUser, LServer) ->
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{ok, State} = eldap_utils:get_state(LServer, ?PROCNAME),
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VCardMap = State#state.vcard_map,
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case find_ldap_user(LUser, State) of
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#eldap_entry{attributes = Attributes} ->
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VCard = ldap_attributes_to_vcard(Attributes, VCardMap,
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{LUser, LServer}),
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{ok, [xmpp:encode(VCard)]};
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_ ->
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{ok, []}
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end.
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set_vcard(_LUser, _LServer, _VCard, _VCardSearch) ->
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{atomic, not_implemented}.
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search_fields(LServer) ->
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{ok, State} = eldap_utils:get_state(LServer, ?PROCNAME),
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State#state.search_fields.
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search_reported(LServer) ->
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{ok, State} = eldap_utils:get_state(LServer, ?PROCNAME),
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State#state.search_reported.
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search(LServer, Data, _AllowReturnAll, MaxMatch) ->
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{ok, State} = eldap_utils:get_state(LServer, ?PROCNAME),
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Base = State#state.base,
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SearchFilter = State#state.search_filter,
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Eldap_ID = State#state.eldap_id,
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UIDs = State#state.uids,
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ReportedAttrs = State#state.search_reported_attrs,
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Filter = eldap:'and'([SearchFilter,
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eldap_utils:make_filter(Data, UIDs)]),
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case eldap_pool:search(Eldap_ID,
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[{base, Base}, {filter, Filter}, {limit, MaxMatch},
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{deref_aliases, State#state.deref_aliases},
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{attributes, ReportedAttrs}])
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of
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#eldap_search_result{entries = E} ->
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search_items(E, State);
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_ ->
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[]
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end.
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search_items(Entries, State) ->
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LServer = State#state.serverhost,
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SearchReported = State#state.search_reported,
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VCardMap = State#state.vcard_map,
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UIDs = State#state.uids,
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Attributes = lists:map(fun (E) ->
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#eldap_entry{attributes = Attrs} = E, Attrs
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end,
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Entries),
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lists:flatmap(
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fun(Attrs) ->
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case eldap_utils:find_ldap_attrs(UIDs, Attrs) of
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{U, UIDAttrFormat} ->
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case eldap_utils:get_user_part(U, UIDAttrFormat) of
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{ok, Username} ->
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case ejabberd_auth:user_exists(Username,
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LServer) of
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true ->
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RFields = lists:map(
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fun({_, VCardName}) ->
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{VCardName,
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map_vcard_attr(VCardName,
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Attrs,
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VCardMap,
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{Username,
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?MYNAME})}
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end,
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SearchReported),
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J = <<Username/binary, $@, LServer/binary>>,
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[{<<"jid">>, J} | RFields];
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_ ->
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[]
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end;
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_ ->
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[]
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end;
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<<"">> ->
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[]
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end
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end, Attributes).
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remove_user(_User, _Server) ->
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{atomic, not_implemented}.
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import(_, _, _) ->
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ok.
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%%%===================================================================
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%%% gen_server callbacks
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%%%===================================================================
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init([Host, Opts]) ->
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process_flag(trap_exit, true),
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State = parse_options(Host, Opts),
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eldap_pool:start_link(State#state.eldap_id,
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State#state.servers, State#state.backups,
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State#state.port, State#state.dn,
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State#state.password, State#state.tls_options),
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{ok, State}.
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handle_call(get_state, _From, State) ->
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{reply, {ok, State}, State};
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handle_call(_Request, _From, State) ->
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Reply = ok,
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{reply, Reply, State}.
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handle_cast(_Msg, State) ->
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{noreply, State}.
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handle_info(_Info, State) ->
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{noreply, State}.
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terminate(_Reason, _State) ->
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ok.
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code_change(_OldVsn, State, _Extra) ->
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{ok, State}.
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%%%===================================================================
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%%% Internal functions
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%%%===================================================================
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find_ldap_user(User, State) ->
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Base = State#state.base,
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RFC2254_Filter = State#state.user_filter,
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Eldap_ID = State#state.eldap_id,
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VCardAttrs = State#state.vcard_map_attrs,
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case eldap_filter:parse(RFC2254_Filter,
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[{<<"%u">>, User}])
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of
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{ok, EldapFilter} ->
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case eldap_pool:search(Eldap_ID,
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[{base, Base}, {filter, EldapFilter},
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{deref_aliases, State#state.deref_aliases},
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{attributes, VCardAttrs}])
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of
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#eldap_search_result{entries = [E | _]} -> E;
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_ -> false
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end;
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_ -> false
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end.
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ldap_attributes_to_vcard(Attributes, VCardMap, UD) ->
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Attrs = lists:map(fun ({VCardName, _, _}) ->
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{stringprep:tolower(VCardName),
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map_vcard_attr(VCardName, Attributes, VCardMap,
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UD)}
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end,
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VCardMap),
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lists:foldl(fun ldap_attribute_to_vcard/2, #vcard_temp{}, Attrs).
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-spec ldap_attribute_to_vcard({binary(), binary()}, vcard_temp()) -> vcard_temp().
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ldap_attribute_to_vcard({Attr, Value}, V) ->
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Ts = V#vcard_temp.tel,
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Es = V#vcard_temp.email,
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N = case V#vcard_temp.n of
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undefined -> #vcard_name{};
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_ -> V#vcard_temp.n
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end,
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O = case V#vcard_temp.org of
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undefined -> #vcard_org{};
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_ -> V#vcard_temp.org
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end,
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A = case V#vcard_temp.adr of
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[] -> #vcard_adr{};
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As -> hd(As)
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end,
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case Attr of
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<<"fn">> -> V#vcard_temp{fn = Value};
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<<"nickname">> -> V#vcard_temp{nickname = Value};
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<<"title">> -> V#vcard_temp{title = Value};
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<<"bday">> -> V#vcard_temp{bday = Value};
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<<"url">> -> V#vcard_temp{url = Value};
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<<"desc">> -> V#vcard_temp{desc = Value};
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<<"role">> -> V#vcard_temp{role = Value};
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<<"tel">> -> V#vcard_temp{tel = [#vcard_tel{number = Value}|Ts]};
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<<"email">> -> V#vcard_temp{email = [#vcard_email{userid = Value}|Es]};
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<<"photo">> -> V#vcard_temp{photo = #vcard_photo{binval = Value}};
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<<"family">> -> V#vcard_temp{n = N#vcard_name{family = Value}};
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<<"given">> -> V#vcard_temp{n = N#vcard_name{given = Value}};
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<<"middle">> -> V#vcard_temp{n = N#vcard_name{middle = Value}};
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<<"orgname">> -> V#vcard_temp{org = O#vcard_org{name = Value}};
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<<"orgunit">> -> V#vcard_temp{org = O#vcard_org{units = [Value]}};
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<<"locality">> -> V#vcard_temp{adr = [A#vcard_adr{locality = Value}]};
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<<"street">> -> V#vcard_temp{adr = [A#vcard_adr{street = Value}]};
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<<"ctry">> -> V#vcard_temp{adr = [A#vcard_adr{ctry = Value}]};
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<<"region">> -> V#vcard_temp{adr = [A#vcard_adr{region = Value}]};
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<<"pcode">> -> V#vcard_temp{adr = [A#vcard_adr{pcode = Value}]};
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_ -> V
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end.
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map_vcard_attr(VCardName, Attributes, Pattern, UD) ->
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Res = lists:filter(fun ({Name, _, _}) ->
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eldap_utils:case_insensitive_match(Name,
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VCardName)
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end,
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Pattern),
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case Res of
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[{_, Str, Attrs}] ->
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process_pattern(Str, UD,
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[eldap_utils:get_ldap_attr(X, Attributes)
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|| X <- Attrs]);
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_ -> <<"">>
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end.
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process_pattern(Str, {User, Domain}, AttrValues) ->
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eldap_filter:do_sub(Str,
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[{<<"%u">>, User}, {<<"%d">>, Domain}] ++
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[{<<"%s">>, V, 1} || V <- AttrValues]).
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default_vcard_map() ->
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[{<<"NICKNAME">>, <<"%u">>, []},
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{<<"FN">>, <<"%s">>, [<<"displayName">>]},
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{<<"FAMILY">>, <<"%s">>, [<<"sn">>]},
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{<<"GIVEN">>, <<"%s">>, [<<"givenName">>]},
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{<<"MIDDLE">>, <<"%s">>, [<<"initials">>]},
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{<<"ORGNAME">>, <<"%s">>, [<<"o">>]},
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{<<"ORGUNIT">>, <<"%s">>, [<<"ou">>]},
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{<<"CTRY">>, <<"%s">>, [<<"c">>]},
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{<<"LOCALITY">>, <<"%s">>, [<<"l">>]},
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{<<"STREET">>, <<"%s">>, [<<"street">>]},
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{<<"REGION">>, <<"%s">>, [<<"st">>]},
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{<<"PCODE">>, <<"%s">>, [<<"postalCode">>]},
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{<<"TITLE">>, <<"%s">>, [<<"title">>]},
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{<<"URL">>, <<"%s">>, [<<"labeleduri">>]},
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{<<"DESC">>, <<"%s">>, [<<"description">>]},
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{<<"TEL">>, <<"%s">>, [<<"telephoneNumber">>]},
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{<<"EMAIL">>, <<"%s">>, [<<"mail">>]},
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{<<"BDAY">>, <<"%s">>, [<<"birthDay">>]},
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{<<"ROLE">>, <<"%s">>, [<<"employeeType">>]},
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{<<"PHOTO">>, <<"%s">>, [<<"jpegPhoto">>]}].
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default_search_fields() ->
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[{<<"User">>, <<"%u">>},
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{<<"Full Name">>, <<"displayName">>},
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{<<"Given Name">>, <<"givenName">>},
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{<<"Middle Name">>, <<"initials">>},
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{<<"Family Name">>, <<"sn">>},
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{<<"Nickname">>, <<"%u">>},
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{<<"Birthday">>, <<"birthDay">>},
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{<<"Country">>, <<"c">>},
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{<<"City">>, <<"l">>},
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{<<"Email">>, <<"mail">>},
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{<<"Organization Name">>, <<"o">>},
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{<<"Organization Unit">>, <<"ou">>}].
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default_search_reported() ->
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[{<<"Full Name">>, <<"FN">>},
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{<<"Given Name">>, <<"FIRST">>},
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{<<"Middle Name">>, <<"MIDDLE">>},
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{<<"Family Name">>, <<"LAST">>},
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{<<"Nickname">>, <<"NICK">>},
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{<<"Birthday">>, <<"BDAY">>},
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{<<"Country">>, <<"CTRY">>},
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{<<"City">>, <<"LOCALITY">>},
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{<<"Email">>, <<"EMAIL">>},
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{<<"Organization Name">>, <<"ORGNAME">>},
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{<<"Organization Unit">>, <<"ORGUNIT">>}].
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parse_options(Host, Opts) ->
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MyHost = gen_mod:get_opt_host(Host, Opts,
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<<"vjud.@HOST@">>),
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Search = gen_mod:get_opt(search, Opts, false),
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Matches = gen_mod:get_opt(matches, Opts, 30),
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Eldap_ID = misc:atom_to_binary(gen_mod:get_module_proc(Host, ?PROCNAME)),
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Cfg = eldap_utils:get_config(Host, Opts),
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UIDsTemp = gen_mod:get_opt({ldap_uids, Host}, Opts,
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[{<<"uid">>, <<"%u">>}]),
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UIDs = eldap_utils:uids_domain_subst(Host, UIDsTemp),
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SubFilter = eldap_utils:generate_subfilter(UIDs),
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UserFilter = case gen_mod:get_opt({ldap_filter, Host}, Opts, <<"">>) of
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<<"">> ->
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SubFilter;
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F ->
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<<"(&", SubFilter/binary, F/binary, ")">>
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end,
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{ok, SearchFilter} =
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eldap_filter:parse(eldap_filter:do_sub(UserFilter,
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[{<<"%u">>, <<"*">>}])),
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VCardMap = gen_mod:get_opt(ldap_vcard_map, Opts, default_vcard_map()),
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SearchFields = gen_mod:get_opt(ldap_search_fields, Opts,
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default_search_fields()),
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SearchReported = gen_mod:get_opt(ldap_search_reported, Opts,
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default_search_reported()),
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UIDAttrs = [UAttr || {UAttr, _} <- UIDs],
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VCardMapAttrs = lists:usort(lists:append([A
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|| {_, _, A} <- VCardMap])
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++ UIDAttrs),
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SearchReportedAttrs = lists:usort(lists:flatmap(fun ({_,
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N}) ->
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case
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lists:keysearch(N,
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1,
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VCardMap)
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of
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{value,
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{_, _, L}} ->
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L;
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_ -> []
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end
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end,
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SearchReported)
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++ UIDAttrs),
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#state{serverhost = Host, myhost = MyHost,
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eldap_id = Eldap_ID, search = Search,
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servers = Cfg#eldap_config.servers,
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backups = Cfg#eldap_config.backups,
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port = Cfg#eldap_config.port,
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tls_options = Cfg#eldap_config.tls_options,
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dn = Cfg#eldap_config.dn,
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password = Cfg#eldap_config.password,
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base = Cfg#eldap_config.base,
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deref_aliases = Cfg#eldap_config.deref_aliases,
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uids = UIDs, vcard_map = VCardMap,
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vcard_map_attrs = VCardMapAttrs,
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user_filter = UserFilter, search_filter = SearchFilter,
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search_fields = SearchFields,
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search_reported = SearchReported,
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search_reported_attrs = SearchReportedAttrs,
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matches = Matches}.
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mod_opt_type(ldap_filter) -> fun eldap_utils:check_filter/1;
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mod_opt_type(ldap_search_fields) ->
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fun (Ls) ->
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[{iolist_to_binary(S), iolist_to_binary(P)}
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|| {S, P} <- Ls]
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end;
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mod_opt_type(ldap_search_reported) ->
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fun (Ls) ->
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[{iolist_to_binary(S), iolist_to_binary(P)}
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|| {S, P} <- Ls]
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end;
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mod_opt_type(ldap_uids) ->
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fun (Us) ->
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lists:map(fun ({U, P}) ->
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{iolist_to_binary(U), iolist_to_binary(P)};
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({U}) -> {iolist_to_binary(U)};
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(U) -> {iolist_to_binary(U)}
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end,
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lists:flatten(Us))
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end;
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mod_opt_type(ldap_vcard_map) ->
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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 misc:try_read_file/1;
|
|
mod_opt_type(ldap_tls_certfile) ->
|
|
fun ejabberd_pkix:try_certfile/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].
|