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Khramtsov) (EJAB-175) * src/eldap/Makefile.in: Likewise * src/ejabberd_auth_ldap.erl: Likewise * src/eldap_pool.erl: Likewise * src/eldap/eldap_utils.erl: Implemented LDAP domain substitution (EJAB-177) * src/eldap/eldap.erl: Implemented queue to avoid bind deadlock under heavy load (thanks to Evgeniy Khramtsov) (EJAB-176) * src/eldap/eldap.hrl: Likewise SVN Revision: 716
58 lines
1.6 KiB
Erlang
58 lines
1.6 KiB
Erlang
%%%-------------------------------------------------------------------
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%%% File : eldap_pool.erl
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%%% Author : Evgeniy Khramtsov <xram@jabber.ru>
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%%% Purpose : LDAP connections pool
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%%% Created : 12 Nov 2006 by Evgeniy Khramtsov <xram@jabber.ru>
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%%% Id : $Id$
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%%%-------------------------------------------------------------------
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-module(eldap_pool).
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-author('xram@jabber.ru').
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%% API
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-export([
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start_link/6,
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bind/3,
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search/2
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]).
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%%====================================================================
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%% API
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%%====================================================================
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bind(PoolName, DN, Passwd) ->
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do_request(PoolName, {bind, [DN, Passwd]}).
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search(PoolName, Opts) ->
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do_request(PoolName, {search, [Opts]}).
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start_link(Name, Hosts, Backups, Port, Rootdn, Passwd) ->
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PoolName = make_id(Name),
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pg2:create(PoolName),
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lists:foreach(fun(Host) ->
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ID = erlang:ref_to_list(make_ref()),
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case catch eldap:start_link(ID, [Host|Backups], Port, Rootdn, Passwd) of
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{ok, Pid} ->
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pg2:join(PoolName, Pid);
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_ ->
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error
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end
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end, Hosts).
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%%====================================================================
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%% Internal functions
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%%====================================================================
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do_request(Name, {F, Args}) ->
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case pg2:get_closest_pid(make_id(Name)) of
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Pid when is_pid(Pid) ->
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case catch apply(eldap, F, [Pid | Args]) of
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{'EXIT', Reason} ->
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{error, Reason};
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Reply ->
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Reply
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end;
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Err ->
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Err
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end.
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make_id(Name) ->
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list_to_atom("eldap_pool_" ++ Name).
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