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%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 1998-2021. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
%% You may obtain a copy of the License at
%%
%% http://www.apache.org/licenses/LICENSE-2.0
%%
%% Unless required by applicable law or agreed to in writing, software
%% distributed under the License is distributed on an "AS IS" BASIS,
%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
%% See the License for the specific language governing permissions and
%% limitations under the License.
%%
%% %CopyrightEnd%
%%
%%
-module(ssl_admin_sup).
-behaviour(supervisor).
%% API
-export([start_link/0, manager_opts/0]).
%% Supervisor callback
-export([init/1]).
%%%=========================================================================
%%% API
%%%=========================================================================
-spec start_link() -> {ok, pid()} | ignore | {error, term()}.
start_link() ->
supervisor:start_link({local, ?MODULE}, ?MODULE, []).
%%%=========================================================================
%%% Supervisor callback
%%%=========================================================================
init([]) ->
SupFlags = #{strategy => rest_for_one,
intensity => 10,
period => 3600
},
ChildSpecs = [pem_cache_child_spec(),
session_and_cert_manager_child_spec(),
ticket_store_spec()],
{ok, {SupFlags, ChildSpecs}}.
manager_opts() ->
CbOpts = case application:get_env(ssl, session_cb) of
{ok, Cb} when is_atom(Cb) ->
InitArgs = session_cb_init_args(),
[{session_cb, Cb}, {session_cb_init_args, InitArgs}];
_ ->
[]
end,
case application:get_env(ssl, session_lifetime) of
{ok, Time} when is_integer(Time) ->
[{session_lifetime, Time}| CbOpts];
_ ->
CbOpts
end.
%%--------------------------------------------------------------------
%%% Internal functions
%%--------------------------------------------------------------------
pem_cache_child_spec() ->
#{id => ssl_pem_cache,
start => {ssl_pem_cache, start_link, [[]]},
restart => permanent,
shutdown => 4000,
modules => [ssl_pem_cache],
type => worker
}.
session_and_cert_manager_child_spec() ->
Opts = manager_opts(),
#{id => ssl_manager,
start => {ssl_manager, start_link, [Opts]},
restart => permanent,
shutdown => 4000,
modules => [ssl_manager],
type => worker
}.
ticket_store_spec() ->
Size = client_session_ticket_store_size(),
Lifetime = client_session_ticket_lifetime(),
#{id => tls_client_ticket_store,
start => {tls_client_ticket_store, start_link, [Size, Lifetime]},
restart => permanent,
shutdown => 4000,
modules => [tls_client_ticket_store],
type => worker
}.
session_cb_init_args() ->
case application:get_env(ssl, session_cb_init_args) of
{ok, Args} when is_list(Args) ->
Args;
_ ->
[]
end.
client_session_ticket_store_size() ->
case application:get_env(ssl, client_session_ticket_store_size) of
{ok, Size} when is_integer(Size) andalso
Size > 0 ->
Size;
_ ->
1000
end.
client_session_ticket_lifetime() ->
case application:get_env(ssl, client_session_ticket_lifetime) of
{ok, Size} when is_integer(Size) andalso
Size > 0 ->
Size;
_ ->
7200
end.
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