%% Copyright (c) 2019-2020, Loïc Hoguin <[email protected]>
%%
%% Permission to use, copy, modify, and/or distribute this software for any
%% purpose with or without fee is hereby granted, provided that the above
%% copyright notice and this permission notice appear in all copies.
%%
%% THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
%% WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
%% MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
%% ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
%% WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
%% ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
%% OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-module(raw_SUITE).
-compile(export_all).
-compile(nowarn_export_all).
-import(ct_helper, [doc/1]).
-import(gun_test, [init_origin/3]).
-import(gun_test, [receive_from/1]).
all() ->
[{group, raw}].
groups() ->
[{raw, [parallel], ct_helper:all(?MODULE)}].
%% Tests.
direct_raw_tcp(_) ->
doc("Directly connect to a remote endpoint using the raw protocol over TCP."),
do_direct_raw(tcp, flow_control_disabled, client_side_close).
direct_raw_tls(_) ->
doc("Directly connect to a remote endpoint using the raw protocol over TLS."),
do_direct_raw(tls, flow_control_disabled, client_side_close).
direct_raw_tcp_with_flow_control(_) ->
doc("Directly connect to a remote endpoint using the raw protocol over TCP "
"with flow control enabled."),
do_direct_raw(tcp, flow_control_enabled, client_side_close).
direct_raw_tls_with_flow_control(_) ->
doc("Directly connect to a remote endpoint using the raw protocol over TLS "
"with flow control enabled."),
do_direct_raw(tls, flow_control_enabled, client_side_close).
direct_raw_tcp_with_server_side_close(_) ->
doc("Directly connect to a remote endpoint using the raw protocol over TCP "
"with server-side close."),
do_direct_raw(tcp, flow_control_disabled, server_side_close).
direct_raw_tls_with_server_side_close(_) ->
doc("Directly connect to a remote endpoint using the raw protocol over TLS "
"with server-side close."),
do_direct_raw(tls, flow_control_disabled, server_side_close).
do_direct_raw(OriginTransport, FlowControl, CloseSide) ->
{ok, OriginPid, OriginPort} = init_origin(OriginTransport, raw, fun do_echo/3),
Opts0 = #{
transport => OriginTransport,
tls_opts => [{verify, verify_none}, {versions, ['tlsv1.2']}],
protocols => [raw]
},
Opts = do_maybe_add_flow(FlowControl, Opts0),
{ok, ConnPid} = gun:open("localhost", OriginPort, Opts),
{ok, raw} = gun:await_up(ConnPid),
handshake_completed = receive_from(OriginPid),
%% When we take over the entire connection there is no stream reference.
gun:data(ConnPid, undefined, nofin, <<"Hello world!">>),
{data, nofin, <<"Hello world!">>} = gun:await(ConnPid, undefined),
do_flow_control(FlowControl, ConnPid),
#{
transport := OriginTransport,
protocol := raw,
origin_scheme := undefined,
origin_host := "localhost",
origin_port := OriginPort,
intermediaries := []
} = gun:info(ConnPid),
do_close(CloseSide, ConnPid).
do_maybe_add_flow(flow_control_enabled, Opts) ->
Opts#{raw_opts => #{flow => 1}};
do_maybe_add_flow(flow_control_disabled, Opts) ->
Opts.
do_flow_control(flow_control_enabled, ConnPid) ->
gun:data(ConnPid, undefined, nofin, <<"Hello world!">>),
{error, timeout} = gun:await(ConnPid, undefined, 1000),
ok = gun:update_flow(ConnPid, undefined, 1),
{data, nofin, <<"Hello world!">>} = gun:await(ConnPid, undefined);
do_flow_control(flow_control_disabled, _ConnPid) ->
ok.
do_close(client_side_close, ConnPid) ->
gun:close(ConnPid);
do_close(server_side_close, ConnPid) ->
gun:data(ConnPid, undefined, nofin, <<"close">>),
receive
{gun_down, ConnPid, raw, closed, []} -> ok
after
1000 -> error(timeout)
end.
socks5_tcp_raw_tcp(_) ->
doc("Use Socks5 over TCP to connect to a remote endpoint using the raw protocol over TCP."),
do_socks5_raw(tcp, tcp).
socks5_tcp_raw_tls(_) ->
doc("Use Socks5 over TCP to connect to a remote endpoint using the raw protocol over TLS."),
do_socks5_raw(tcp, tls).
socks5_tls_raw_tcp(_) ->
doc("Use Socks5 over TLS to connect to a remote endpoint using the raw protocol over TCP."),
do_socks5_raw(tls, tcp).
socks5_tls_raw_tls(_) ->
doc("Use Socks5 over TLS to connect to a remote endpoint using the raw protocol over TLS."),
do_socks5_raw(tls, tls).
do_socks5_raw(OriginTransport, ProxyTransport) ->
{ok, OriginPid, OriginPort} = init_origin(OriginTransport, raw, fun do_echo/3),
{ok, ProxyPid, ProxyPort} = socks_SUITE:do_proxy_start(ProxyTransport, none),
{ok, ConnPid} = gun:open("localhost", ProxyPort, #{
transport => ProxyTransport,
tls_opts => [{verify, verify_none}, {versions, ['tlsv1.2']}],
protocols => [{socks, #{
host => "localhost",
port => OriginPort,
transport => OriginTransport,
tls_opts => [{verify, verify_none}, {versions, ['tlsv1.2']}],
protocols => [raw]
}}]
}),
%% We receive a gun_up and a gun_tunnel_up.
{ok, socks} = gun:await_up(ConnPid),
{up, raw} = gun:await(ConnPid, undefined),
%% The proxy received two packets.
{auth_methods, 1, [none]} = receive_from(ProxyPid),
{connect, <<"localhost">>, OriginPort} = receive_from(ProxyPid),
handshake_completed = receive_from(OriginPid),
%% When we take over the entire connection there is no stream reference.
gun:data(ConnPid, undefined, nofin, <<"Hello world!">>),
{data, nofin, <<"Hello world!">>} = gun:await(ConnPid, undefined),
#{
transport := OriginTransport,
protocol := raw,
origin_scheme := undefined,
origin_host := "localhost",
origin_port := OriginPort,
intermediaries := [#{
type := socks5,
host := "localhost",
port := ProxyPort,
transport := ProxyTransport,
protocol := socks
}]} = gun:info(ConnPid),
gun:close(ConnPid).
connect_tcp_raw_tcp(_) ->
doc("Use CONNECT over TCP to connect to a remote endpoint using the raw protocol over TCP."),
do_connect_raw(tcp, tcp).
connect_tcp_raw_tls(_) ->
doc("Use CONNECT over TCP to connect to a remote endpoint using the raw protocol over TLS."),
do_connect_raw(tcp, tls).
connect_tls_raw_tcp(_) ->
doc("Use CONNECT over TLS to connect to a remote endpoint using the raw protocol over TCP."),
do_connect_raw(tls, tcp).
connect_tls_raw_tls(_) ->
doc("Use CONNECT over TLS to connect to a remote endpoint using the raw protocol over TLS."),
do_connect_raw(tls, tls).
do_connect_raw(OriginTransport, ProxyTransport) ->
{ok, OriginPid, OriginPort} = init_origin(OriginTransport, raw, fun do_echo/3),
{ok, ProxyPid, ProxyPort} = rfc7231_SUITE:do_proxy_start(ProxyTransport),
Authority = iolist_to_binary(["localhost:", integer_to_binary(OriginPort)]),
{ok, ConnPid} = gun:open("localhost", ProxyPort, #{
transport => ProxyTransport,
tls_opts => [{verify, verify_none}, {versions, ['tlsv1.2']}]
}),
{ok, http} = gun:await_up(ConnPid),
StreamRef = gun:connect(ConnPid, #{
host => "localhost",
port => OriginPort,
transport => OriginTransport,
tls_opts => [{verify, verify_none}, {versions, ['tlsv1.2']}],
protocols => [raw]
}),
{request, <<"CONNECT">>, Authority, 'HTTP/1.1', _} = receive_from(ProxyPid),
{response, fin, 200, _} = gun:await(ConnPid, StreamRef),
handshake_completed = receive_from(OriginPid),
{up, raw} = gun:await(ConnPid, StreamRef),
gun:data(ConnPid, StreamRef, nofin, <<"Hello world!">>),
{data, nofin, <<"Hello world!">>} = gun:await(ConnPid, StreamRef),
#{
transport := OriginTransport,
protocol := raw,
origin_scheme := undefined,
origin_host := "localhost",
origin_port := OriginPort,
intermediaries := [#{
type := connect,
host := "localhost",
port := ProxyPort,
transport := ProxyTransport,
protocol := http
}]} = gun:info(ConnPid),
gun:close(ConnPid).
connect_raw_reply_to(_) ->
doc("When using CONNECT to establish a connection with the reply_to option set, "
"Gun must honor this option in the raw protocol."),
Self = self(),
ReplyTo = spawn(fun() ->
{ConnPid, StreamRef} = receive Msg -> Msg after 1000 -> error(timeout) end,
{response, fin, 200, _} = gun:await(ConnPid, StreamRef),
{up, raw} = gun:await(ConnPid, StreamRef),
Self ! {self(), ready},
{data, nofin, <<"Hello world!">>} = gun:await(ConnPid, StreamRef),
Self ! {self(), ok}
end),
{ok, OriginPid, OriginPort} = init_origin(tcp, raw, fun do_echo/3),
{ok, ProxyPid, ProxyPort} = rfc7231_SUITE:do_proxy_start(tcp),
{ok, ConnPid} = gun:open("localhost", ProxyPort),
{ok, http} = gun:await_up(ConnPid),
StreamRef = gun:connect(ConnPid, #{
host => "localhost",
port => OriginPort,
protocols => [raw]
}, [], #{reply_to => ReplyTo}),
ReplyTo ! {ConnPid, StreamRef},
{request, <<"CONNECT">>, _, 'HTTP/1.1', _} = receive_from(ProxyPid),
handshake_completed = receive_from(OriginPid),
receive {ReplyTo, ready} -> ok after 1000 -> error(timeout) end,
gun:data(ConnPid, StreamRef, nofin, <<"Hello world!">>),
receive {ReplyTo, ok} -> gun:close(ConnPid) after 1000 -> error(timeout) end.
http11_upgrade_raw_tcp(_) ->
doc("Use the HTTP Upgrade mechanism to switch to the raw protocol over TCP."),
do_http11_upgrade_raw(tcp).
http11_upgrade_raw_tls(_) ->
doc("Use the HTTP Upgrade mechanism to switch to the raw protocol over TLS."),
do_http11_upgrade_raw(tls).
do_http11_upgrade_raw(OriginTransport) ->
{ok, OriginPid, OriginPort} = init_origin(OriginTransport, raw,
fun (Parent, ClientSocket, ClientTransport) ->
%% We skip the request and send a 101 response unconditionally.
{ok, _} = ClientTransport:recv(ClientSocket, 0, 5000),
ClientTransport:send(ClientSocket,
"HTTP/1.1 101 Switching Protocols\r\n"
"Connection: upgrade\r\n"
"Upgrade: custom/1.0\r\n"
"\r\n"),
do_echo(Parent, ClientSocket, ClientTransport)
end),
{ok, ConnPid} = gun:open("localhost", OriginPort, #{
transport => OriginTransport,
tls_opts => [{verify, verify_none}, {versions, ['tlsv1.2']}]
}),
{ok, http} = gun:await_up(ConnPid),
handshake_completed = receive_from(OriginPid),
StreamRef = gun:get(ConnPid, "/", #{
<<"connection">> => <<"upgrade">>,
<<"upgrade">> => <<"custom/1.0">>
}),
{upgrade, [<<"custom/1.0">>], _} = gun:await(ConnPid, StreamRef),
%% When we take over the entire connection there is no stream reference.
gun:data(ConnPid, undefined, nofin, <<"Hello world!">>),
{data, nofin, <<"Hello world!">>} = gun:await(ConnPid, undefined),
#{
transport := OriginTransport,
protocol := raw,
origin_scheme := undefined,
origin_host := "localhost",
origin_port := OriginPort,
intermediaries := []
} = gun:info(ConnPid),
gun:close(ConnPid).
http11_upgrade_raw_reply_to(_) ->
doc("When upgrading an HTTP/1.1 connection with the reply_to option set, "
"Gun must honor this option in the raw protocol."),
Self = self(),
ReplyTo = spawn(fun() ->
{ConnPid, StreamRef} = receive Msg -> Msg after 1000 -> error(timeout) end,
{upgrade, [<<"custom/1.0">>], _} = gun:await(ConnPid, StreamRef),
Self ! {self(), ready},
{data, nofin, <<"Hello world!">>} = gun:await(ConnPid, undefined),
Self ! {self(), ok}
end),
{ok, OriginPid, OriginPort} = init_origin(tcp, raw,
fun (Parent, ClientSocket, ClientTransport) ->
%% We skip the request and send a 101 response unconditionally.
{ok, _} = ClientTransport:recv(ClientSocket, 0, 5000),
ClientTransport:send(ClientSocket,
"HTTP/1.1 101 Switching Protocols\r\n"
"Connection: upgrade\r\n"
"Upgrade: custom/1.0\r\n"
"\r\n"),
do_echo(Parent, ClientSocket, ClientTransport)
end),
{ok, ConnPid} = gun:open("localhost", OriginPort),
{ok, http} = gun:await_up(ConnPid),
handshake_completed = receive_from(OriginPid),
StreamRef = gun:get(ConnPid, "/", #{
<<"connection">> => <<"upgrade">>,
<<"upgrade">> => <<"custom/1.0">>
}, #{reply_to => ReplyTo}),
ReplyTo ! {ConnPid, StreamRef},
receive {ReplyTo, ready} -> ok after 1000 -> error(timeout) end,
gun:data(ConnPid, undefined, nofin, <<"Hello world!">>),
receive {ReplyTo, ok} -> gun:close(ConnPid) after 1000 -> error(timeout) end.
http2_connect_tcp_raw_tcp(_) ->
doc("Use CONNECT over clear HTTP/2 to connect to a remote endpoint using the raw protocol over TCP."),
do_http2_connect_raw(tcp, <<"http">>, tcp).
http2_connect_tls_raw_tcp(_) ->
doc("Use CONNECT over secure HTTP/2 to connect to a remote endpoint using the raw protocol over TCP."),
do_http2_connect_raw(tcp, <<"https">>, tls).
do_http2_connect_raw(OriginTransport, ProxyScheme, ProxyTransport) ->
{ok, OriginPid, OriginPort} = init_origin(OriginTransport, raw, fun do_echo/3),
{ok, ProxyPid, ProxyPort} = rfc7540_SUITE:do_proxy_start(ProxyTransport, [
{proxy_stream, 1, 200, [], 0, undefined}
]),
Authority = iolist_to_binary(["localhost:", integer_to_binary(OriginPort)]),
{ok, ConnPid} = gun:open("localhost", ProxyPort, #{
transport => ProxyTransport,
tls_opts => [{verify, verify_none}, {versions, ['tlsv1.2']}],
protocols => [http2]
}),
{ok, http2} = gun:await_up(ConnPid),
handshake_completed = receive_from(ProxyPid),
StreamRef = gun:connect(ConnPid, #{
host => "localhost",
port => OriginPort,
transport => OriginTransport,
protocols => [raw]
}),
{request, #{
<<":method">> := <<"CONNECT">>,
<<":authority">> := Authority
}} = receive_from(ProxyPid),
{response, fin, 200, _} = gun:await(ConnPid, StreamRef),
handshake_completed = receive_from(OriginPid),
{up, raw} = gun:await(ConnPid, StreamRef),
gun:data(ConnPid, StreamRef, nofin, <<"Hello world!">>),
{data, nofin, <<"Hello world!">>} = gun:await(ConnPid, StreamRef),
#{
transport := ProxyTransport,
protocol := http2,
origin_scheme := ProxyScheme,
origin_host := "localhost",
origin_port := ProxyPort,
intermediaries := []
} = gun:info(ConnPid),
Self = self(),
{ok, #{
ref := StreamRef,
reply_to := Self,
state := running,
tunnel := #{
transport := OriginTransport,
protocol := raw,
origin_scheme := undefined,
origin_host := "localhost",
origin_port := OriginPort
}
}} = gun:stream_info(ConnPid, StreamRef),
gun:close(ConnPid).
%% The origin server will echo everything back.
do_echo(Parent, ClientSocket, ClientTransport) ->
case ClientTransport:recv(ClientSocket, 0, 5000) of
{ok, <<"close">>} ->
ok = ClientTransport:close(ClientSocket);
{ok, Data} ->
ClientTransport:send(ClientSocket, Data),
do_echo(Parent, ClientSocket, ClientTransport);
{error, closed} ->
ok
end.
