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%%============================================================================== |
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%% Copyright 2017 Erlang Solutions Ltd. |
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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(mod_global_distrib_transport). |
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-author('konrad.zemek@erlang-solutions.com'). |
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-record(?MODULE, { |
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transport :: fast_tls | gen_tcp, |
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socket :: fast_tls:tls_socket() | gen_tcp:socket() |
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}). |
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-type t() :: #?MODULE{}. |
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-export([wrap/2, wrap/3, setopts/2, recv_data/2, close/1, send/2, peername/1]). |
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-export_type([t/0]). |
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%%-------------------------------------------------------------------- |
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%% API |
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%%-------------------------------------------------------------------- |
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-spec wrap(gen_tcp:socket(), #{tls := mongoose_tls:options()}) -> {ok, t()} | {error, any()}. |
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wrap(Socket, ConnOpts) -> |
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wrap(Socket, ConnOpts, #{}). |
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-spec wrap(gen_tcp:socket(), #{tls := mongoose_tls:options()}, ExtraOpts :: map()) -> |
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{ok, t()} | {error, any()}. |
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wrap(Socket, #{tls := Opts}, ExtraOpts) -> |
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PreparedOpts = mongoose_tls:prepare_options(fast_tls, maps:merge(Opts, ExtraOpts)), |
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case fast_tls:tcp_to_tls(Socket, PreparedOpts) of |
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{ok, TLSSocket} -> {ok, #?MODULE{transport = fast_tls, socket = TLSSocket}}; |
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:-( |
Error -> Error |
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end; |
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wrap(Socket, #{}, _ExtraOpts) -> |
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{ok, #?MODULE{transport = gen_tcp, socket = Socket}}. |
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-spec setopts(t(), Opts :: proplists:proplist()) -> ok | {error, term()}. |
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setopts(#?MODULE{transport = gen_tcp, socket = Socket}, Opts) -> |
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:-( |
inet:setopts(Socket, Opts); |
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setopts(#?MODULE{transport = fast_tls, socket = Socket}, Opts) -> |
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fast_tls:setopts(Socket, Opts). |
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-spec recv_data(t(), Data :: binary()) -> {ok, binary()} | {error, any()}. |
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recv_data(#?MODULE{transport = gen_tcp}, Data) -> |
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:-( |
{ok, Data}; |
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recv_data(#?MODULE{transport = fast_tls, socket = Socket}, Data) -> |
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fast_tls:recv_data(Socket, Data). |
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-spec close(t()) -> ok | {error, any()}. |
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close(#?MODULE{transport = gen_tcp, socket = Socket}) -> |
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gen_tcp:close(Socket); |
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close(#?MODULE{transport = fast_tls, socket = Socket}) -> |
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fast_tls:close(Socket). |
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-spec send(t(), Data :: binary()) -> ok | {error, any()}. |
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send(#?MODULE{transport = gen_tcp, socket = Socket}, Data) -> |
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gen_tcp:send(Socket, Data); |
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send(#?MODULE{transport = fast_tls, socket = Socket}, Data) -> |
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fast_tls:send(Socket, Data). |
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-spec peername(t()) -> {inet:ip_address(), inet:port_number()} | unknown. |
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peername(#?MODULE{transport = gen_tcp, socket = Socket}) -> |
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normalize_peername(inet:peername(Socket)); |
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peername(#?MODULE{transport = fast_tls, socket = Socket}) -> |
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normalize_peername(fast_tls:peername(Socket)). |
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-spec normalize_peername({ok, {inet:ip_address(), inet:port_number()}} | any()) -> |
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{inet:ip_address(), inet:port_number()} | unknown. |
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normalize_peername({ok, {IP, Port}}) when is_tuple(IP), is_integer(Port) -> {IP, Port}; |
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normalize_peername(_Other) -> unknown. |
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