54 lines
1.0 KiB
Erlang
54 lines
1.0 KiB
Erlang
|
-module(transport_capabilities_protocol).
|
||
|
|
-behaviour(ranch_protocol).
|
||
|
|
|
||
|
|
-export([start_link/3]).
|
||
|
|
-export([init/3]).
|
||
|
|
|
||
|
|
start_link(Ref, 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.
|