-module(transport_capabilities_protocol).
-behaviour(ranch_protocol).
-export([start_link/4]).
-export([init/3]).
start_link(Ref, _Socket, Transport, Opts) ->
Pid = spawn_link(?MODULE, init, [Ref, Transport, Opts]),
{ok, Pid}.
init(Ref, Transport, _Opts = []) ->
{ok, Socket} = ranch:handshake(Ref),
loop(Socket, Transport).
loop(Socket, Transport) ->
case Transport:recv(Socket, 0, 5000) of
{ok, Data} ->
Reply =
case check(Socket, Transport, Data) of
ok ->
<<"OK">>;
error ->
<<"ERROR">>
end,
Transport:send(Socket, Reply),
loop(Socket, Transport);
_ ->
ok = Transport:close(Socket)
end.
check(Socket, Transport, <<"getopts/2">>) ->
case catch Transport:getopts(Socket, []) of
{ok, _} ->
ok;
_ ->
error
end;
check(Socket, Transport, <<"getstat/1">>) ->
case catch Transport:getstat(Socket) of
{ok, _} ->
ok;
_ ->
error
end;
check(Socket, Transport, <<"getstat/2">>) ->
case catch Transport:getstat(Socket, []) of
{ok, _} ->
ok;
_ ->
error
end.
