85 lines
2.2 KiB
Erlang
85 lines
2.2 KiB
Erlang
%%%-------------------------------------------------------------------
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%%% @author Evgeny Khramtsov <ekhramtsov@process-one.net>
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%%% @copyright (C) 2017, Evgeny Khramtsov
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%%% @doc
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%%%
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%%% @end
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%%% Created : 28 Mar 2017 by Evgeny Khramtsov <ekhramtsov@process-one.net>
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%%%-------------------------------------------------------------------
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-module(mod_bosh_redis).
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-behaviour(mod_bosh).
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%% API
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-export([init/0, open_session/2, close_session/1, find_session/1]).
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-include("ejabberd.hrl").
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-include("logger.hrl").
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-define(BOSH_KEY, "ejabberd:bosh").
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%%%===================================================================
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%%% API
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%%%===================================================================
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init() ->
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clean_table().
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open_session(SID, Pid) ->
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PidBin = term_to_binary(Pid),
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case ejabberd_redis:hset(?BOSH_KEY, SID, PidBin) of
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{ok, _} ->
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ok;
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Err ->
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?ERROR_MSG("failed to register bosh session in redis: ~p", [Err]),
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Err
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end.
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close_session(SID) ->
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case ejabberd_redis:hdel(?BOSH_KEY, [SID]) of
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{ok, _} ->
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ok;
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Err ->
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?ERROR_MSG("failed to delete bosh session in redis: ~p", [Err])
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end.
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find_session(SID) ->
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case ejabberd_redis:hget(?BOSH_KEY, SID) of
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{ok, Pid} when is_binary(Pid) ->
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try
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{ok, binary_to_term(Pid)}
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catch _:badarg ->
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?ERROR_MSG("malformed data in redis (key = '~s'): ~p",
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[SID, Pid]),
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error
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end;
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{ok, _} ->
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error;
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Err ->
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?ERROR_MSG("failed to lookup bosh session in redis: ~p", [Err]),
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error
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end.
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%%%===================================================================
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%%% Internal functions
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%%%===================================================================
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clean_table() ->
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?INFO_MSG("Cleaning Redis BOSH sessions...", []),
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case ejabberd_redis:hgetall(?BOSH_KEY) of
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{ok, Vals} ->
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case ejabberd_redis:multi(
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fun() ->
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lists:foreach(
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fun({SID, Pid}) when node(Pid) == node() ->
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ejabberd_redis:hdel(?BOSH_KEY, [SID]);
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(_) ->
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ok
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end, Vals)
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end) of
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{ok, _} ->
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ok;
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Err ->
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?ERROR_MSG("failed to clean bosh sessions in redis: ~p", [Err])
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end;
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Err ->
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?ERROR_MSG("failed to clean bosh sessions in redis: ~p", [Err])
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end.
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