54 lines
1.7 KiB
Erlang
54 lines
1.7 KiB
Erlang
%%--------------------------------------------------------------------
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%% Copyright (c) 2022-2024 EMQ Technologies Co., Ltd. All Rights Reserved.
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%%
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%% Licensed under the Apache License, Version 2.0 (the "License");
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%% you may not use this file except in compliance with the License.
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%% You may obtain a copy of the License at
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%%
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%% http://www.apache.org/licenses/LICENSE-2.0
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%%
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%% Unless required by applicable law or agreed to in writing, software
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%% distributed under the License is distributed on an "AS IS" BASIS,
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%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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%% See the License for the specific language governing permissions and
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%% limitations under the License.
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%%--------------------------------------------------------------------
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-module(emqx_connector_lib).
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%% connectivity check
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-export([
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http_connectivity/2,
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tcp_connectivity/3
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]).
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-export([resolve_dns/2]).
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-spec http_connectivity(uri_string:uri_string(), timeout()) ->
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ok | {error, Reason :: term()}.
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http_connectivity(Url, Timeout) ->
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case emqx_http_lib:uri_parse(Url) of
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{ok, #{host := Host, port := Port}} ->
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tcp_connectivity(Host, Port, Timeout);
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{error, Reason} ->
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{error, Reason}
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end.
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-spec tcp_connectivity(
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Host :: inet:socket_address() | inet:hostname(),
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Port :: inet:port_number(),
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timeout()
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) ->
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ok | {error, Reason :: term()}.
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tcp_connectivity(Host, Port, Timeout) ->
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case gen_tcp:connect(Host, Port, emqx_utils:ipv6_probe([]), Timeout) of
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{ok, Sock} ->
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gen_tcp:close(Sock),
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ok;
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{error, Reason} ->
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{error, Reason}
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end.
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%% @doc Mostly for meck.
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resolve_dns(DNS, Type) ->
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inet_res:lookup(DNS, in, Type).
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