%% Copyright (c) 2016-2017, Loïc Hoguin %% %% 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(req_SUITE). -compile(export_all). -compile(nowarn_export_all). -import(ct_helper, [config/2]). -import(ct_helper, [doc/1]). -import(cowboy_test, [gun_open/1]). %% ct. suite() -> [{timetrap, 30000}]. all() -> cowboy_test:common_all(). groups() -> cowboy_test:common_groups(ct_helper:all(?MODULE)). init_per_suite(Config) -> ct_helper:create_static_dir(config(priv_dir, Config) ++ "/static"), Config. end_per_suite(Config) -> ct_helper:delete_static_dir(config(priv_dir, Config) ++ "/static"). init_per_group(Name, Config) -> cowboy_test:init_common_groups(Name, Config, ?MODULE). end_per_group(Name, _) -> cowboy:stop_listener(Name). %% Routes. init_dispatch(Config) -> cowboy_router:compile([{"[...]", [ {"/static/[...]", cowboy_static, {dir, config(priv_dir, Config) ++ "/static"}}, %% @todo Seriously InitialState should be optional. {"/resp/:key[/:arg]", resp_h, []}, {"/multipart[/:key]", multipart_h, []}, {"/args/:key/:arg[/:default]", echo_h, []}, {"/crash/:key/period", echo_h, #{length => 999999999, period => 1000, crash => true}}, {"/no-opts/:key", echo_h, #{crash => true}}, {"/opts/:key/length", echo_h, #{length => 1000}}, {"/opts/:key/period", echo_h, #{length => 999999999, period => 2000}}, {"/opts/:key/timeout", echo_h, #{timeout => 1000, crash => true}}, {"/100-continue/:key", echo_h, []}, {"/full/:key", echo_h, []}, {"/spawn/:key", echo_h, []}, {"/no/:key", echo_h, []}, {"/direct/:key/[...]", echo_h, []}, {"/:key/[...]", echo_h, []} ]}]). %% Internal. do_body(Method, Path, Config) -> do_body(Method, Path, [], Config). do_body(Method, Path, Headers, Config) -> do_body(Method, Path, Headers, <<>>, Config). do_body(Method, Path, Headers0, Body, Config) -> ConnPid = gun_open(Config), Headers = [{<<"accept-encoding">>, <<"gzip">>}|Headers0], Ref = gun:request(ConnPid, Method, Path, Headers, Body), {response, IsFin, 200, RespHeaders} = gun:await(ConnPid, Ref, infinity), {ok, RespBody} = case IsFin of nofin -> gun:await_body(ConnPid, Ref, infinity); fin -> {ok, <<>>} end, gun:close(ConnPid), do_decode(RespHeaders, RespBody). do_body_error(Method, Path, Headers0, Body, Config) -> ConnPid = gun_open(Config), Headers = [{<<"accept-encoding">>, <<"gzip">>}|Headers0], Ref = gun:request(ConnPid, Method, Path, Headers, Body), {response, _, Status, RespHeaders} = gun:await(ConnPid, Ref, infinity), gun:close(ConnPid), {Status, RespHeaders}. do_get(Path, Config) -> do_get(Path, [], Config). do_get(Path, Headers, Config) -> ConnPid = gun_open(Config), Ref = gun:get(ConnPid, Path, [{<<"accept-encoding">>, <<"gzip">>}|Headers]), {response, IsFin, Status, RespHeaders} = gun:await(ConnPid, Ref, infinity), {ok, RespBody} = case IsFin of nofin -> gun:await_body(ConnPid, Ref, infinity); fin -> {ok, <<>>} end, gun:close(ConnPid), {Status, RespHeaders, do_decode(RespHeaders, RespBody)}. do_get_body(Path, Config) -> do_get_body(Path, [], Config). do_get_body(Path, Headers, Config) -> do_body("GET", Path, Headers, Config). do_get_inform(Path, Config) -> ConnPid = gun_open(Config), Ref = gun:get(ConnPid, Path, [{<<"accept-encoding">>, <<"gzip">>}]), case gun:await(ConnPid, Ref, infinity) of {response, _, RespStatus, RespHeaders} -> %% We don't care about the body. gun:close(ConnPid), {RespStatus, RespHeaders}; {inform, InfoStatus, InfoHeaders} -> {response, IsFin, RespStatus, RespHeaders} = case gun:await(ConnPid, Ref, infinity) of {inform, InfoStatus, InfoHeaders} -> gun:await(ConnPid, Ref, infinity); Response -> Response end, {ok, RespBody} = case IsFin of nofin -> gun:await_body(ConnPid, Ref, infinity); fin -> {ok, <<>>} end, gun:close(ConnPid), {InfoStatus, InfoHeaders, RespStatus, RespHeaders, do_decode(RespHeaders, RespBody)} end. do_decode(Headers, Body) -> case lists:keyfind(<<"content-encoding">>, 1, Headers) of {_, <<"gzip">>} -> zlib:gunzip(Body); _ -> Body end. do_get_error(Path, Config) -> do_get_error(Path, [], Config). do_get_error(Path, Headers, Config) -> ConnPid = gun_open(Config), Ref = gun:get(ConnPid, Path, [{<<"accept-encoding">>, <<"gzip">>}|Headers]), {response, IsFin, Status, RespHeaders} = gun:await(ConnPid, Ref, infinity), Result = case IsFin of nofin -> gun:await_body(ConnPid, Ref, infinity); fin -> {ok, <<>>} end, case Result of {ok, RespBody} -> {Status, RespHeaders, do_decode(RespHeaders, RespBody)}; _ -> Result end. %% Tests: Request. binding(Config) -> doc("Value bound from request URI path with/without default."), <<"binding">> = do_get_body("/args/binding/key", Config), <<"binding">> = do_get_body("/args/binding/key/default", Config), <<"default">> = do_get_body("/args/binding/undefined/default", Config), ok. bindings(Config) -> doc("Values bound from request URI path."), <<"#{key => <<\"bindings\">>}">> = do_get_body("/bindings", Config), ok. cert(Config) -> case config(type, Config) of tcp -> doc("TLS certificates can only be provided over TLS."); ssl -> do_cert(Config) end. do_cert(Config0) -> doc("A client TLS certificate was provided."), {CaCert, Cert, Key} = ct_helper:make_certs(), Config = [{tls_opts, [ {cert, Cert}, {key, Key}, {cacerts, [CaCert]} ]}|Config0], Cert = do_get_body("/cert", Config), Cert = do_get_body("/direct/cert", Config), ok. cert_undefined(Config) -> doc("No client TLS certificate was provided."), <<"undefined">> = do_get_body("/cert", Config), <<"undefined">> = do_get_body("/direct/cert", Config), ok. header(Config) -> doc("Request header with/without default."), <<"value">> = do_get_body("/args/header/defined", [{<<"defined">>, "value"}], Config), <<"value">> = do_get_body("/args/header/defined/default", [{<<"defined">>, "value"}], Config), <<"default">> = do_get_body("/args/header/undefined/default", [{<<"defined">>, "value"}], Config), ok. headers(Config) -> doc("Request headers."), do_headers("/headers", Config), do_headers("/direct/headers", Config). do_headers(Path, Config) -> %% We always send accept-encoding with this test suite's requests. <<"#{<<\"accept-encoding\">> => <<\"gzip\">>," "<<\"content-length\">> => <<\"0\">>," "<<\"header\">> => <<\"value\">>", _/bits>> = do_get_body(Path, [{<<"header">>, "value"}], Config), ok. host(Config) -> doc("Request URI host."), <<"localhost">> = do_get_body("/host", Config), <<"localhost">> = do_get_body("/direct/host", Config), ok. host_info(Config) -> doc("Request host_info."), <<"[<<\"localhost\">>]">> = do_get_body("/host_info", Config), ok. %% @todo Actually write the related unit tests. match_cookies(Config) -> doc("Matched request cookies."), <<"#{}">> = do_get_body("/match/cookies", [{<<"cookie">>, "a=b; c=d"}], Config), <<"#{a => <<\"b\">>}">> = do_get_body("/match/cookies/a", [{<<"cookie">>, "a=b; c=d"}], Config), <<"#{c => <<\"d\">>}">> = do_get_body("/match/cookies/c", [{<<"cookie">>, "a=b; c=d"}], Config), <<"#{a => <<\"b\">>,c => <<\"d\">>}">> = do_get_body("/match/cookies/a/c", [{<<"cookie">>, "a=b; c=d"}], Config), %% Ensure match errors result in a 400 response. {400, _, _} = do_get("/match/cookies/a/c", [{<<"cookie">>, "a=b"}], Config), %% This function is tested more extensively through unit tests. ok. %% @todo Actually write the related unit tests. match_qs(Config) -> doc("Matched request URI query string."), <<"#{}">> = do_get_body("/match/qs?a=b&c=d", Config), <<"#{a => <<\"b\">>}">> = do_get_body("/match/qs/a?a=b&c=d", Config), <<"#{c => <<\"d\">>}">> = do_get_body("/match/qs/c?a=b&c=d", Config), <<"#{a => <<\"b\">>,c => <<\"d\">>}">> = do_get_body("/match/qs/a/c?a=b&c=d", Config), <<"#{a => <<\"b\">>,c => true}">> = do_get_body("/match/qs/a/c?a=b&c", Config), <<"#{a => true,c => <<\"d\">>}">> = do_get_body("/match/qs/a/c?a&c=d", Config), %% Ensure match errors result in a 400 response. {400, _, _} = do_get("/match/qs/a/c?a=b", [], Config), %% This function is tested more extensively through unit tests. ok. method(Config) -> doc("Request method."), do_method("/method", Config), do_method("/direct/method", Config). do_method(Path, Config) -> <<"GET">> = do_body("GET", Path, Config), <<>> = do_body("HEAD", Path, Config), <<"OPTIONS">> = do_body("OPTIONS", Path, Config), <<"PATCH">> = do_body("PATCH", Path, Config), <<"POST">> = do_body("POST", Path, Config), <<"PUT">> = do_body("PUT", Path, Config), <<"ZZZZZZZZ">> = do_body("ZZZZZZZZ", Path, Config), ok. parse_cookies(Config) -> doc("Request cookies."), <<"[]">> = do_get_body("/parse_cookies", Config), <<"[{<<\"cake\">>,<<\"strawberry\">>}]">> = do_get_body("/parse_cookies", [{<<"cookie">>, "cake=strawberry"}], Config), <<"[{<<\"cake\">>,<<\"strawberry\">>},{<<\"color\">>,<<\"blue\">>}]">> = do_get_body("/parse_cookies", [{<<"cookie">>, "cake=strawberry; color=blue"}], Config), <<"[{<<\"cake\">>,<<\"strawberry\">>},{<<\"color\">>,<<\"blue\">>}]">> = do_get_body("/parse_cookies", [{<<"cookie">>, "cake=strawberry"}, {<<"cookie">>, "color=blue"}], Config), %% Ensure parse errors result in a 400 response. {400, _, _} = do_get("/parse_cookies", [{<<"cookie">>, "bad\tname=strawberry"}], Config), {400, _, _} = do_get("/parse_cookies", [{<<"cookie">>, "goodname=strawberry\tmilkshake"}], Config), ok. filter_then_parse_cookies(Config) -> doc("Filter cookies then parse them."), <<"[]">> = do_get_body("/filter_then_parse_cookies", Config), <<"[{<<\"cake\">>,<<\"strawberry\">>}]">> = do_get_body("/filter_then_parse_cookies", [{<<"cookie">>, "cake=strawberry"}], Config), <<"[{<<\"cake\">>,<<\"strawberry\">>},{<<\"color\">>,<<\"blue\">>}]">> = do_get_body("/filter_then_parse_cookies", [{<<"cookie">>, "cake=strawberry; color=blue"}], Config), <<"[{<<\"cake\">>,<<\"strawberry\">>},{<<\"color\">>,<<\"blue\">>}]">> = do_get_body("/filter_then_parse_cookies", [{<<"cookie">>, "cake=strawberry"}, {<<"cookie">>, "color=blue"}], Config), <<"[]">> = do_get_body("/filter_then_parse_cookies", [{<<"cookie">>, "bad name=strawberry"}], Config), <<"[{<<\"cake\">>,<<\"strawberry\">>}]">> = do_get_body("/filter_then_parse_cookies", [{<<"cookie">>, "bad name=strawberry; cake=strawberry"}], Config), <<"[]">> = do_get_body("/filter_then_parse_cookies", [{<<"cookie">>, "Blocked by http://www.example.com/upgrade-to-remove"}], Config), ok. parse_header(Config) -> doc("Parsed request header with/without default."), <<"[{{<<\"text\">>,<<\"html\">>,[]},1000,[]}]">> = do_get_body("/args/parse_header/accept", [{<<"accept">>, "text/html"}], Config), <<"[{{<<\"text\">>,<<\"html\">>,[]},1000,[]}]">> = do_get_body("/args/parse_header/accept/default", [{<<"accept">>, "text/html"}], Config), %% Header not in request but with default defined by Cowboy. <<"0">> = do_get_body("/args/parse_header/content-length", Config), %% Header not in request and no default from Cowboy. <<"undefined">> = do_get_body("/args/parse_header/upgrade", Config), %% Header in request and with default provided. <<"100-continue">> = do_get_body("/args/parse_header/expect/100-continue", Config), %% Ensure parse errors result in a 400 response. {400, _, _} = do_get("/args/parse_header/accept", [{<<"accept">>, "bad media type"}], Config), ok. parse_qs(Config) -> doc("Parsed request URI query string."), <<"[]">> = do_get_body("/parse_qs", Config), <<"[{<<\"abc\">>,true}]">> = do_get_body("/parse_qs?abc", Config), <<"[{<<\"a\">>,<<\"b\">>},{<<\"c\">>,<<\"d e\">>}]">> = do_get_body("/parse_qs?a=b&c=d+e", Config), %% Ensure parse errors result in a 400 response. {400, _, _} = do_get("/parse_qs?%%%%%%%", Config), ok. path(Config) -> doc("Request URI path."), do_path("/path", Config), do_path("/direct/path", Config). do_path(Path0, Config) -> Path = list_to_binary(Path0 ++ "/to/the/resource"), Path = do_get_body(Path, Config), Path = do_get_body([Path, "?query"], Config), Path = do_get_body([Path, "?query#fragment"], Config), Path = do_get_body([Path, "#fragment"], Config), ok. path_info(Config) -> doc("Request path_info."), <<"undefined">> = do_get_body("/no/path_info", Config), <<"[]">> = do_get_body("/path_info", Config), <<"[]">> = do_get_body("/path_info/", Config), <<"[<<\"to\">>,<<\"the\">>,<<\"resource\">>]">> = do_get_body("/path_info/to/the/resource", Config), <<"[<<\"to\">>,<<\"the\">>,<<\"resource\">>]">> = do_get_body("/path_info/to/the/resource?query", Config), <<"[<<\"to\">>,<<\"the\">>,<<\"resource\">>]">> = do_get_body("/path_info/to/the/resource?query#fragment", Config), <<"[<<\"to\">>,<<\"the\">>,<<\"resource\">>]">> = do_get_body("/path_info/to/the/resource#fragment", Config), ok. peer(Config) -> doc("Remote socket address."), <<"{{127,0,0,1},", _/bits >> = do_get_body("/peer", Config), <<"{{127,0,0,1},", _/bits >> = do_get_body("/direct/peer", Config), ok. port(Config) -> doc("Request URI port."), Port = integer_to_binary(config(port, Config)), Port = do_get_body("/port", Config), Port = do_get_body("/direct/port", Config), ExpectedPort = case config(type, Config) of tcp -> <<"80">>; ssl -> <<"443">> end, ExpectedPort = do_get_body("/port", [{<<"host">>, <<"localhost">>}], Config), ExpectedPort = do_get_body("/direct/port", [{<<"host">>, <<"localhost">>}], Config), ok. qs(Config) -> doc("Request URI query string."), do_qs("/qs", Config), do_qs("/direct/qs", Config). do_qs(Path, Config) -> <<>> = do_get_body(Path, Config), <<"abc">> = do_get_body(Path ++ "?abc", Config), <<"a=b&c=d+e">> = do_get_body(Path ++ "?a=b&c=d+e", Config), ok. scheme(Config) -> doc("Request URI scheme."), do_scheme("/scheme", Config), do_scheme("/direct/scheme", Config). do_scheme(Path, Config) -> Transport = config(type, Config), case do_get_body(Path, Config) of <<"http">> when Transport =:= tcp -> ok; <<"https">> when Transport =:= ssl -> ok end. sock(Config) -> doc("Local socket address."), <<"{{127,0,0,1},", _/bits >> = do_get_body("/sock", Config), <<"{{127,0,0,1},", _/bits >> = do_get_body("/direct/sock", Config), ok. uri(Config) -> doc("Request URI building/modification."), Scheme = case config(type, Config) of tcp -> <<"http">>; ssl -> <<"https">> end, SLen = byte_size(Scheme), Port = integer_to_binary(config(port, Config)), PLen = byte_size(Port), %% Absolute form. << Scheme:SLen/binary, "://localhost:", Port:PLen/binary, "/uri?qs" >> = do_get_body("/uri?qs", Config), %% Origin form. << "/uri/origin?qs" >> = do_get_body("/uri/origin?qs", Config), %% Protocol relative. << "//localhost:", Port:PLen/binary, "/uri/protocol-relative?qs" >> = do_get_body("/uri/protocol-relative?qs", Config), %% No query string. << Scheme:SLen/binary, "://localhost:", Port:PLen/binary, "/uri/no-qs" >> = do_get_body("/uri/no-qs?qs", Config), %% No path or query string. << Scheme:SLen/binary, "://localhost:", Port:PLen/binary >> = do_get_body("/uri/no-path?qs", Config), %% Changed port. << Scheme:SLen/binary, "://localhost:123/uri/set-port?qs" >> = do_get_body("/uri/set-port?qs", Config), %% This function is tested more extensively through unit tests. ok. version(Config) -> doc("Request HTTP version."), do_version("/version", Config), do_version("/direct/version", Config). do_version(Path, Config) -> Protocol = config(protocol, Config), case do_get_body(Path, Config) of <<"HTTP/1.1">> when Protocol =:= http -> ok; <<"HTTP/2">> when Protocol =:= http2 -> ok end. %% Tests: Request body. body_length(Config) -> doc("Request body length."), <<"0">> = do_get_body("/body_length", Config), <<"12">> = do_body("POST", "/body_length", [], "hello world!", Config), ok. has_body(Config) -> doc("Has a request body?"), <<"false">> = do_get_body("/has_body", Config), <<"true">> = do_body("POST", "/has_body", [], "hello world!", Config), ok. read_body(Config) -> doc("Request body."), <<>> = do_get_body("/read_body", Config), <<"hello world!">> = do_body("POST", "/read_body", [], "hello world!", Config), %% We expect to have read *at least* 1000 bytes. <<0:8000, _/bits>> = do_body("POST", "/opts/read_body/length", [], <<0:8000000>>, Config), %% The timeout value is set too low on purpose to ensure a crash occurs. ok = do_read_body_timeout("/opts/read_body/timeout", <<0:8000000>>, Config), %% 10MB body larger than default length. <<0:80000000>> = do_body("POST", "/full/read_body", [], <<0:80000000>>, Config), ok. read_body_mtu(Config) -> case os:type() of {win32, _} -> {skip, "Loopback MTU size is 0xFFFFFFFF on Windows."}; {unix, _} -> doc("Request body whose sizes are around the MTU."), MTU = ct_helper:get_loopback_mtu(), _ = [begin Body = <<0:Size/unit:8>>, Body = do_body("POST", "/full/read_body", [], Body, Config) end || Size <- lists:seq(MTU - 10, MTU + 10)], ok end. read_body_period(Config) -> doc("Read the request body for at most 2 seconds."), ConnPid = gun_open(Config), Body = <<0:8000000>>, Ref = gun:headers(ConnPid, "POST", "/opts/read_body/period", [ {<<"content-length">>, integer_to_binary(byte_size(Body) * 2)} ]), %% The body is sent without fin. The server will read what it can %% for 2 seconds. The test succeeds if we get some of the data back %% (meaning the function will have returned after the period ends). gun:data(ConnPid, Ref, nofin, Body), {response, nofin, 200, _} = gun:await(ConnPid, Ref, infinity), {data, _, Data} = gun:await(ConnPid, Ref, infinity), %% We expect to read at least some data. true = Data =/= <<>>, gun:close(ConnPid). %% We expect a crash. do_read_body_timeout(Path, Body, Config) -> ConnPid = gun_open(Config), Ref = gun:headers(ConnPid, "POST", Path, [ {<<"content-length">>, integer_to_binary(byte_size(Body))} ]), {response, _, 500, _} = gun:await(ConnPid, Ref, infinity), gun:close(ConnPid). read_body_spawn(Config) -> doc("Confirm we can use cowboy_req:read_body/1,2 from another process."), <<"hello world!">> = do_body("POST", "/spawn/read_body", [], "hello world!", Config), ok. read_body_expect_100_continue(Config) -> doc("Request body with a 100-continue expect header."), do_read_body_expect_100_continue("/read_body", Config). read_body_expect_100_continue_user_sent(Config) -> doc("Request body with a 100-continue expect header, 100 response sent by handler."), do_read_body_expect_100_continue("/100-continue/read_body", Config). do_read_body_expect_100_continue(Path, Config) -> ConnPid = gun_open(Config), Body = <<0:8000000>>, Headers = [ {<<"accept-encoding">>, <<"gzip">>}, {<<"expect">>, <<"100-continue">>}, {<<"content-length">>, integer_to_binary(byte_size(Body))} ], Ref = gun:post(ConnPid, Path, Headers), {inform, 100, []} = gun:await(ConnPid, Ref, infinity), gun:data(ConnPid, Ref, fin, Body), {response, IsFin, 200, RespHeaders} = gun:await(ConnPid, Ref, infinity), {ok, RespBody} = case IsFin of nofin -> gun:await_body(ConnPid, Ref, infinity); fin -> {ok, <<>>} end, gun:close(ConnPid), do_decode(RespHeaders, RespBody). read_urlencoded_body(Config) -> doc("application/x-www-form-urlencoded request body."), <<"[]">> = do_body("POST", "/read_urlencoded_body", [], <<>>, Config), <<"[{<<\"abc\">>,true}]">> = do_body("POST", "/read_urlencoded_body", [], "abc", Config), <<"[{<<\"a\">>,<<\"b\">>},{<<\"c\">>,<<\"d e\">>}]">> = do_body("POST", "/read_urlencoded_body", [], "a=b&c=d+e", Config), %% The timeout value is set too low on purpose to ensure a crash occurs. ok = do_read_body_timeout("/opts/read_urlencoded_body/timeout", <<"abc">>, Config), %% Ensure parse errors result in a 400 response. {400, _} = do_body_error("POST", "/read_urlencoded_body", [], "%%%%%", Config), ok. read_urlencoded_body_too_large(Config) -> doc("application/x-www-form-urlencoded request body too large. " "Send a 10MB body, larger than the default length, to ensure a crash occurs."), do_read_urlencoded_body_too_large("/no-opts/read_urlencoded_body", string:chars($a, 10000000), Config). %% We expect a crash. do_read_urlencoded_body_too_large(Path, Body, Config) -> ConnPid = gun_open(Config), Ref = gun:headers(ConnPid, "POST", Path, [ {<<"content-length">>, integer_to_binary(iolist_size(Body))} ]), gun:data(ConnPid, Ref, fin, Body), {response, _, 413, _} = gun:await(ConnPid, Ref, infinity), gun:close(ConnPid). read_urlencoded_body_too_long(Config) -> doc("application/x-www-form-urlencoded request body sent too slow. " "The body is simply not being sent fully. It is read by the handler " "for at most 1 second. A crash occurs because we don't have the full body."), do_read_urlencoded_body_too_long("/crash/read_urlencoded_body/period", <<"abc">>, Config). %% We expect a crash. do_read_urlencoded_body_too_long(Path, Body, Config) -> ConnPid = gun_open(Config), Ref = gun:headers(ConnPid, "POST", Path, [ {<<"content-length">>, integer_to_binary(byte_size(Body) * 2)} ]), gun:data(ConnPid, Ref, nofin, Body), {response, _, 408, RespHeaders} = gun:await(ConnPid, Ref, infinity), _ = case config(protocol, Config) of http -> %% 408 error responses should close HTTP/1.1 connections. {_, <<"close">>} = lists:keyfind(<<"connection">>, 1, RespHeaders); http2 -> ok end, gun:close(ConnPid). read_and_match_urlencoded_body(Config) -> doc("Read and match an application/x-www-form-urlencoded request body."), <<"#{}">> = do_body("POST", "/match/body_qs", [], "a=b&c=d", Config), <<"#{a => <<\"b\">>}">> = do_body("POST", "/match/body_qs/a", [], "a=b&c=d", Config), <<"#{c => <<\"d\">>}">> = do_body("POST", "/match/body_qs/c", [], "a=b&c=d", Config), <<"#{a => <<\"b\">>,c => <<\"d\">>}">> = do_body("POST", "/match/body_qs/a/c", [], "a=b&c=d", Config), <<"#{a => <<\"b\">>,c => true}">> = do_body("POST", "/match/body_qs/a/c", [], "a=b&c", Config), <<"#{a => true,c => <<\"d\">>}">> = do_body("POST", "/match/body_qs/a/c", [], "a&c=d", Config), %% Ensure match errors result in a 400 response. {400, _} = do_body_error("POST", "/match/body_qs/a/c", [], "a=b", Config), %% Ensure parse errors result in a 400 response. {400, _} = do_body_error("POST", "/match/body_qs", [], "%%%%%", Config), %% The timeout value is set too low on purpose to ensure a crash occurs. ok = do_read_body_timeout("/opts/read_and_match_urlencoded_body/timeout", <<"abc">>, Config), ok. read_and_match_urlencoded_body_too_large(Config) -> doc("Read and match an application/x-www-form-urlencoded request body too large. " "Send a 10MB body, larger than the default length, to ensure a crash occurs."), do_read_urlencoded_body_too_large( "/no-opts/read_and_match_urlencoded_body", string:chars($a, 10000000), Config). read_and_match_urlencoded_body_too_long(Config) -> doc("Read and match an application/x-www-form-urlencoded request body sent too slow. " "The body is simply not being sent fully. It is read by the handler " "for at most 1 second. A crash occurs because we don't have the full body."), do_read_urlencoded_body_too_long( "/crash/read_and_match_urlencoded_body/period", <<"abc">>, Config). multipart(Config) -> doc("Multipart request body."), do_multipart("/multipart", Config). do_multipart(Path, Config) -> LargeBody = iolist_to_binary(string:chars($a, 10000000)), ReqBody = [ "--deadbeef\r\nContent-Type: text/plain\r\n\r\nCowboy is an HTTP server.\r\n" "--deadbeef\r\nContent-Type: application/octet-stream\r\nX-Custom: value\r\n\r\n", LargeBody, "\r\n" "--deadbeef--" ], RespBody = do_body("POST", Path, [ {<<"content-type">>, <<"multipart/mixed; boundary=deadbeef">>} ], ReqBody, Config), [ {#{<<"content-type">> := <<"text/plain">>}, <<"Cowboy is an HTTP server.">>}, {LargeHeaders, LargeBody} ] = binary_to_term(RespBody), #{ <<"content-type">> := <<"application/octet-stream">>, <<"x-custom">> := <<"value">> } = LargeHeaders, ok. multipart_error_empty(Config) -> doc("Multipart request body is empty."), %% We use an empty list as a body to make sure Gun knows %% we want to send an empty body. %% @todo This is a terrible hack. Improve Gun! Body = [], %% Ensure an empty body results in a 400 error. {400, _} = do_body_error("POST", "/multipart", [ {<<"content-type">>, <<"multipart/mixed; boundary=deadbeef">>} ], Body, Config), ok. multipart_error_preamble_only(Config) -> doc("Multipart request body only contains a preamble."), %% Ensure an empty body results in a 400 error. {400, _} = do_body_error("POST", "/multipart", [ {<<"content-type">>, <<"multipart/mixed; boundary=deadbeef">>} ], <<"Preamble.">>, Config), ok. multipart_error_headers(Config) -> doc("Multipart request body with invalid part headers."), ReqBody = [ "--deadbeef\r\nbad-header text/plain\r\n\r\nCowboy is an HTTP server.\r\n" "--deadbeef--" ], %% Ensure parse errors result in a 400 response. {400, _} = do_body_error("POST", "/multipart", [ {<<"content-type">>, <<"multipart/mixed; boundary=deadbeef">>} ], ReqBody, Config), ok. %% The function to parse the multipart body currently does not crash, %% as far as I can tell. There is therefore no test for it. multipart_error_no_final_boundary(Config) -> doc("Multipart request body with no final boundary."), ReqBody = [ "--deadbeef\r\nContent-Type: text/plain\r\n\r\nCowboy is an HTTP server.\r\n" ], %% Ensure parse errors result in a 400 response. {400, _} = do_body_error("POST", "/multipart", [ {<<"content-type">>, <<"multipart/mixed; boundary=deadbeef">>} ], ReqBody, Config), ok. multipart_missing_boundary(Config) -> doc("Multipart request body without a boundary in the media type."), ReqBody = [ "--deadbeef\r\nContent-Type: text/plain\r\n\r\nCowboy is an HTTP server.\r\n" "--deadbeef--" ], %% Ensure parse errors result in a 400 response. {400, _} = do_body_error("POST", "/multipart", [ {<<"content-type">>, <<"multipart/mixed">>} ], ReqBody, Config), ok. read_part_skip_body(Config) -> doc("Multipart request body skipping part bodies."), LargeBody = iolist_to_binary(string:chars($a, 10000000)), ReqBody = [ "--deadbeef\r\nContent-Type: text/plain\r\n\r\nCowboy is an HTTP server.\r\n" "--deadbeef\r\nContent-Type: application/octet-stream\r\nX-Custom: value\r\n\r\n", LargeBody, "\r\n" "--deadbeef--" ], RespBody = do_body("POST", "/multipart/skip_body", [ {<<"content-type">>, <<"multipart/mixed; boundary=deadbeef">>} ], ReqBody, Config), [ #{<<"content-type">> := <<"text/plain">>}, LargeHeaders ] = binary_to_term(RespBody), #{ <<"content-type">> := <<"application/octet-stream">>, <<"x-custom">> := <<"value">> } = LargeHeaders, ok. %% @todo When reading a multipart body, length and period %% only apply to a single read_body call. We may want a %% separate option to know how many reads we want to do %% before we give up. read_part2(Config) -> doc("Multipart request body using read_part/2."), %% Override the length and period values only, making %% the request process use more read_body calls. %% %% We do not try a custom timeout value since this would %% be the same test as read_body/2. do_multipart("/multipart/read_part2", Config). read_part_body2(Config) -> doc("Multipart request body using read_part_body/2."), %% Override the length and period values only, making %% the request process use more read_body calls. %% %% We do not try a custom timeout value since this would %% be the same test as read_body/2. do_multipart("/multipart/read_part_body2", Config). %% Tests: Response. %% @todo We want to crash when calling set_resp_* or related %% functions after the reply has been sent. set_resp_cookie(Config) -> doc("Response using set_resp_cookie."), %% Single cookie, no options. {200, Headers1, _} = do_get("/resp/set_resp_cookie3", Config), {_, <<"mycookie=myvalue; Version=1">>} = lists:keyfind(<<"set-cookie">>, 1, Headers1), %% Single cookie, with options. {200, Headers2, _} = do_get("/resp/set_resp_cookie4", Config), {_, <<"mycookie=myvalue; Version=1; Path=/resp/set_resp_cookie4">>} = lists:keyfind(<<"set-cookie">>, 1, Headers2), %% Multiple cookies. {200, Headers3, _} = do_get("/resp/set_resp_cookie3/multiple", Config), [_, _] = [H || H={<<"set-cookie">>, _} <- Headers3], %% Overwrite previously set cookie. {200, Headers4, _} = do_get("/resp/set_resp_cookie3/overwrite", Config), {_, <<"mycookie=overwrite; Version=1">>} = lists:keyfind(<<"set-cookie">>, 1, Headers4), ok. set_resp_header(Config) -> doc("Response using set_resp_header."), {200, Headers, <<"OK">>} = do_get("/resp/set_resp_header", Config), true = lists:keymember(<<"content-type">>, 1, Headers), ok. set_resp_headers(Config) -> doc("Response using set_resp_headers."), {200, Headers, <<"OK">>} = do_get("/resp/set_resp_headers", Config), true = lists:keymember(<<"content-type">>, 1, Headers), true = lists:keymember(<<"content-encoding">>, 1, Headers), ok. resp_header(Config) -> doc("Response header with/without default."), {200, _, <<"OK">>} = do_get("/resp/resp_header_defined", Config), {200, _, <<"OK">>} = do_get("/resp/resp_header_default", Config), ok. resp_headers(Config) -> doc("Get all response headers."), {200, _, <<"OK">>} = do_get("/resp/resp_headers", Config), {200, _, <<"OK">>} = do_get("/resp/resp_headers_empty", Config), ok. set_resp_body(Config) -> doc("Response using set_resp_body."), {200, _, <<"OK">>} = do_get("/resp/set_resp_body", Config), {200, _, <<"OVERRIDE">>} = do_get("/resp/set_resp_body/override", Config), {ok, AppFile} = file:read_file(code:where_is_file("cowboy.app")), {200, _, AppFile} = do_get("/resp/set_resp_body/sendfile", Config), ok. set_resp_body_sendfile0(Config) -> doc("Response using set_resp_body with a sendfile of length 0."), Path = "/resp/set_resp_body/sendfile0", ConnPid = gun_open(Config), %% First request. Ref1 = gun:get(ConnPid, Path, [{<<"accept-encoding">>, <<"gzip">>}]), {response, IsFin, 200, _} = gun:await(ConnPid, Ref1, infinity), {ok, <<>>} = case IsFin of nofin -> gun:await_body(ConnPid, Ref1, infinity); fin -> {ok, <<>>} end, %% Second request will confirm everything works as intended. Ref2 = gun:get(ConnPid, Path, [{<<"accept-encoding">>, <<"gzip">>}]), {response, IsFin, 200, _} = gun:await(ConnPid, Ref2, infinity), {ok, <<>>} = case IsFin of nofin -> gun:await_body(ConnPid, Ref2, infinity); fin -> {ok, <<>>} end, gun:close(ConnPid), ok. has_resp_header(Config) -> doc("Has response header?"), {200, Headers, <<"OK">>} = do_get("/resp/has_resp_header", Config), true = lists:keymember(<<"content-type">>, 1, Headers), ok. has_resp_body(Config) -> doc("Has response body?"), {200, _, <<"OK">>} = do_get("/resp/has_resp_body", Config), {200, _, <<"OK">>} = do_get("/resp/has_resp_body/sendfile", Config), ok. delete_resp_header(Config) -> doc("Delete response header."), {200, Headers, <<"OK">>} = do_get("/resp/delete_resp_header", Config), false = lists:keymember(<<"content-type">>, 1, Headers), ok. inform2(Config) -> doc("Informational response(s) without headers, followed by the real response."), {102, [], 200, _, _} = do_get_inform("/resp/inform2/102", Config), {102, [], 200, _, _} = do_get_inform("/resp/inform2/binary", Config), {500, _} = do_get_inform("/resp/inform2/error", Config), {102, [], 200, _, _} = do_get_inform("/resp/inform2/twice", Config), ok. inform3(Config) -> doc("Informational response(s) with headers, followed by the real response."), Headers = [{<<"ext-header">>, <<"ext-value">>}], {102, Headers, 200, _, _} = do_get_inform("/resp/inform3/102", Config), {102, Headers, 200, _, _} = do_get_inform("/resp/inform3/binary", Config), {500, _} = do_get_inform("/resp/inform3/error", Config), {102, Headers, 200, _, _} = do_get_inform("/resp/inform3/twice", Config), ok. reply2(Config) -> doc("Response with default headers and no body."), {200, _, _} = do_get("/resp/reply2/200", Config), {201, _, _} = do_get("/resp/reply2/201", Config), {404, _, _} = do_get("/resp/reply2/404", Config), {200, _, _} = do_get("/resp/reply2/binary", Config), {500, _, _} = do_get("/resp/reply2/error", Config), %% @todo We want to crash when reply or stream_reply is called twice. %% How to test this properly? This isn't enough. {200, _, _} = do_get("/resp/reply2/twice", Config), ok. reply3(Config) -> doc("Response with additional headers and no body."), {200, Headers1, _} = do_get("/resp/reply3/200", Config), true = lists:keymember(<<"content-type">>, 1, Headers1), {201, Headers2, _} = do_get("/resp/reply3/201", Config), true = lists:keymember(<<"content-type">>, 1, Headers2), {404, Headers3, _} = do_get("/resp/reply3/404", Config), true = lists:keymember(<<"content-type">>, 1, Headers3), {500, _, _} = do_get("/resp/reply3/error", Config), ok. reply4(Config) -> doc("Response with additional headers and body."), {200, _, <<"OK">>} = do_get("/resp/reply4/200", Config), {201, _, <<"OK">>} = do_get("/resp/reply4/201", Config), {404, _, <<"OK">>} = do_get("/resp/reply4/404", Config), {500, _, _} = do_get("/resp/reply4/error", Config), ok. %% @todo Crash when stream_reply is called twice. stream_reply2(Config) -> doc("Response with default headers and streamed body."), Body = <<0:8000000>>, {200, _, Body} = do_get("/resp/stream_reply2/200", Config), {201, _, Body} = do_get("/resp/stream_reply2/201", Config), {404, _, Body} = do_get("/resp/stream_reply2/404", Config), {200, _, Body} = do_get("/resp/stream_reply2/binary", Config), {500, _, _} = do_get("/resp/stream_reply2/error", Config), ok. stream_reply3(Config) -> doc("Response with additional headers and streamed body."), Body = <<0:8000000>>, {200, Headers1, Body} = do_get("/resp/stream_reply3/200", Config), true = lists:keymember(<<"content-type">>, 1, Headers1), {201, Headers2, Body} = do_get("/resp/stream_reply3/201", Config), true = lists:keymember(<<"content-type">>, 1, Headers2), {404, Headers3, Body} = do_get("/resp/stream_reply3/404", Config), true = lists:keymember(<<"content-type">>, 1, Headers3), {500, _, _} = do_get("/resp/stream_reply3/error", Config), ok. stream_body_fin0(Config) -> doc("Streamed body with last chunk of size 0."), {200, _, <<"Hello world!">>} = do_get("/resp/stream_body/fin0", Config), ok. stream_body_multiple(Config) -> doc("Streamed body via multiple calls."), {200, _, <<"Hello world!">>} = do_get("/resp/stream_body/multiple", Config), ok. stream_body_loop(Config) -> doc("Streamed body via a fast loop."), {200, _, <<0:32000000/unit:8>>} = do_get("/resp/stream_body/loop", Config), ok. stream_body_nofin(Config) -> doc("Unfinished streamed body."), {200, _, <<"Hello world!">>} = do_get("/resp/stream_body/nofin", Config), ok. stream_body_sendfile(Config) -> doc("Streamed body via multiple calls, including sendfile calls."), {ok, AppFile} = file:read_file(code:where_is_file("cowboy.app")), ExpectedBody = iolist_to_binary([ <<"Hello ">>, AppFile, <<" interspersed ">>, AppFile, <<" world!">> ]), {200, _, ExpectedBody} = do_get("/resp/stream_body/sendfile", Config), ok. stream_body_sendfile_fin(Config) -> doc("Streamed body via multiple calls, including a sendfile final call."), {ok, AppFile} = file:read_file(code:where_is_file("cowboy.app")), ExpectedBody = iolist_to_binary([ <<"Hello! ">>, AppFile ]), {200, _, ExpectedBody} = do_get("/resp/stream_body/sendfile_fin", Config), ok. stream_body_spawn(Config) -> doc("Confirm we can use cowboy_req:stream_body/3 from another process."), {200, _, <<"Hello world!">>} = do_get("/resp/stream_body/spawn", Config), ok. stream_body_content_length_multiple(Config) -> doc("Streamed body via multiple calls."), {200, _, <<"Hello world!">>} = do_get("/resp/stream_body_content_length/multiple", Config), ok. stream_body_content_length_fin0(Config) -> doc("Streamed body with last chunk of size 0."), {200, _, <<"Hello world!">>} = do_get("/resp/stream_body_content_length/fin0", Config), ok. stream_body_content_length_nofin(Config) -> doc("Unfinished streamed body."), {200, _, <<"Hello world!">>} = do_get("/resp/stream_body_content_length/nofin", Config), ok. stream_body_content_length_nofin_error(Config) -> doc("Not all of the response body sent."), case config(protocol, Config) of http -> case do_get_error("/resp/stream_body_content_length/nofin-error", Config) of %% When compression is used content-length is not sent. {200, Headers, <<"Hello">>} -> {_, <<"gzip">>} = lists:keyfind(<<"content-encoding">>, 1, Headers); %% The server closes the connection when the body couldn't be sent fully. {error, {stream_error, closed}} -> receive {gun_down, ConnPid, _, _, _} -> gun:close(ConnPid) after 1000 -> error(timeout) end end; http2 -> %% @todo HTTP2 should have the same content-length checks ok end. %% @todo Crash when calling stream_body after the fin flag has been set. %% @todo Crash when calling stream_body after calling reply. %% @todo Crash when calling stream_body before calling stream_reply. stream_events_single(Config) -> doc("Streamed event."), {200, Headers, << "event: add_comment\n" "data: Comment text.\n" "data: With many lines.\n" "\n" >>} = do_get("/resp/stream_events/single", Config), {_, <<"text/event-stream">>} = lists:keyfind(<<"content-type">>, 1, Headers), ok. stream_events_list(Config) -> doc("Streamed list of events."), {200, Headers, << "event: add_comment\n" "data: Comment text.\n" "data: With many lines.\n" "\n" ": Set retry higher\n" ": with many lines also.\n" "retry: 10000\n" "\n" "id: 123\n" "event: add_comment\n" "data: Closing!\n" "\n" >>} = do_get("/resp/stream_events/list", Config), {_, <<"text/event-stream">>} = lists:keyfind(<<"content-type">>, 1, Headers), ok. stream_events_multiple(Config) -> doc("Streamed events via multiple calls."), {200, Headers, << "event: add_comment\n" "data: Comment text.\n" "data: With many lines.\n" "\n" ": Set retry higher\n" ": with many lines also.\n" "retry: 10000\n" "\n" "id: 123\n" "event: add_comment\n" "data: Closing!\n" "\n" >>} = do_get("/resp/stream_events/multiple", Config), {_, <<"text/event-stream">>} = lists:keyfind(<<"content-type">>, 1, Headers), ok. stream_trailers(Config) -> doc("Stream body followed by trailer headers."), {200, RespHeaders, <<"Hello world!">>, [ {<<"grpc-status">>, <<"0">>} ]} = do_trailers("/resp/stream_trailers", Config), {_, <<"grpc-status">>} = lists:keyfind(<<"trailer">>, 1, RespHeaders), ok. stream_trailers_large(Config) -> doc("Stream large body followed by trailer headers."), {200, RespHeaders, <<0:80000000>>, [ {<<"grpc-status">>, <<"0">>} ]} = do_trailers("/resp/stream_trailers/large", Config), {_, <<"grpc-status">>} = lists:keyfind(<<"trailer">>, 1, RespHeaders), ok. stream_trailers_no_te(Config) -> doc("Stream body followed by trailer headers without a te header in the request."), ConnPid = gun_open(Config), Ref = gun:get(ConnPid, "/resp/stream_trailers", [ {<<"accept-encoding">>, <<"gzip">>} ]), {response, nofin, 200, RespHeaders} = gun:await(ConnPid, Ref, infinity), %% @todo Do we want to remove the trailer header automatically? % false = lists:keyfind(<<"trailer">>, 1, RespHeaders), {ok, RespBody} = gun:await_body(ConnPid, Ref, infinity), <<"Hello world!">> = do_decode(RespHeaders, RespBody), gun:close(ConnPid). do_trailers(Path, Config) -> ConnPid = gun_open(Config), Ref = gun:get(ConnPid, Path, [ {<<"accept-encoding">>, <<"gzip">>}, {<<"te">>, <<"trailers">>} ]), {response, nofin, Status, RespHeaders} = gun:await(ConnPid, Ref, infinity), {ok, RespBody, Trailers} = gun:await_body(ConnPid, Ref, infinity), gun:close(ConnPid), {Status, RespHeaders, do_decode(RespHeaders, RespBody), Trailers}. %% @todo Crash when calling stream_trailers twice. %% @todo Crash when calling stream_trailers after the fin flag has been set. %% @todo Crash when calling stream_trailers after calling reply. %% @todo Crash when calling stream_trailers before calling stream_reply. %% Tests: Push. %% @todo We want to crash when push is called after reply has been initiated. push(Config) -> case config(protocol, Config) of http -> do_push_http("/resp/push", Config); http2 -> do_push_http2(Config) end. push_method(Config) -> case config(protocol, Config) of http -> do_push_http("/resp/push/method", Config); http2 -> do_push_http2_method(Config) end. push_origin(Config) -> case config(protocol, Config) of http -> do_push_http("/resp/push/origin", Config); http2 -> do_push_http2_origin(Config) end. push_qs(Config) -> case config(protocol, Config) of http -> do_push_http("/resp/push/qs", Config); http2 -> do_push_http2_qs(Config) end. do_push_http(Path, Config) -> doc("Ignore pushed responses when protocol is HTTP/1.1."), ConnPid = gun_open(Config), Ref = gun:get(ConnPid, Path, []), {response, fin, 200, _} = gun:await(ConnPid, Ref, infinity), ok. do_push_http2(Config) -> doc("Pushed responses."), ConnPid = gun_open(Config), Ref = gun:get(ConnPid, "/resp/push", []), %% We expect two pushed resources. Origin = iolist_to_binary([ case config(type, Config) of tcp -> "http"; ssl -> "https" end, "://localhost:", integer_to_binary(config(port, Config)) ]), OriginLen = byte_size(Origin), {push, PushCSS, <<"GET">>, <>, [{<<"accept">>,<<"text/css">>}]} = gun:await(ConnPid, Ref, infinity), {push, PushTXT, <<"GET">>, <>, [{<<"accept">>,<<"text/plain">>}]} = gun:await(ConnPid, Ref, infinity), %% Pushed CSS. {response, nofin, 200, HeadersCSS} = gun:await(ConnPid, PushCSS, infinity), {_, <<"text/css">>} = lists:keyfind(<<"content-type">>, 1, HeadersCSS), {ok, <<"body{color:red}\n">>} = gun:await_body(ConnPid, PushCSS, infinity), %% Pushed TXT is 406 because the pushed accept header uses an undefined type. {response, fin, 406, _} = gun:await(ConnPid, PushTXT, infinity), %% Let's not forget about the response to the client's request. {response, fin, 200, _} = gun:await(ConnPid, Ref, infinity), gun:close(ConnPid). do_push_http2_method(Config) -> doc("Pushed response with non-GET method."), ConnPid = gun_open(Config), Ref = gun:get(ConnPid, "/resp/push/method", []), %% Pushed CSS. {push, PushCSS, <<"HEAD">>, _, [{<<"accept">>,<<"text/css">>}]} = gun:await(ConnPid, Ref, infinity), {response, fin, 200, HeadersCSS} = gun:await(ConnPid, PushCSS, infinity), {_, <<"text/css">>} = lists:keyfind(<<"content-type">>, 1, HeadersCSS), %% Let's not forget about the response to the client's request. {response, fin, 200, _} = gun:await(ConnPid, Ref, infinity), gun:close(ConnPid). do_push_http2_origin(Config) -> doc("Pushed response with custom scheme/host/port."), ConnPid = gun_open(Config), Ref = gun:get(ConnPid, "/resp/push/origin", []), %% Pushed CSS. {push, PushCSS, <<"GET">>, <<"ftp://127.0.0.1:21/static/style.css">>, [{<<"accept">>,<<"text/css">>}]} = gun:await(ConnPid, Ref, infinity), {response, nofin, 200, HeadersCSS} = gun:await(ConnPid, PushCSS, infinity), {_, <<"text/css">>} = lists:keyfind(<<"content-type">>, 1, HeadersCSS), {ok, <<"body{color:red}\n">>} = gun:await_body(ConnPid, PushCSS, infinity), %% Let's not forget about the response to the client's request. {response, fin, 200, _} = gun:await(ConnPid, Ref, infinity), gun:close(ConnPid). do_push_http2_qs(Config) -> doc("Pushed response with query string."), ConnPid = gun_open(Config), Ref = gun:get(ConnPid, "/resp/push/qs", []), %% Pushed CSS. Origin = iolist_to_binary([ case config(type, Config) of tcp -> "http"; ssl -> "https" end, "://localhost:", integer_to_binary(config(port, Config)) ]), OriginLen = byte_size(Origin), {push, PushCSS, <<"GET">>, <>, [{<<"accept">>,<<"text/css">>}]} = gun:await(ConnPid, Ref, infinity), {response, nofin, 200, HeadersCSS} = gun:await(ConnPid, PushCSS, infinity), {_, <<"text/css">>} = lists:keyfind(<<"content-type">>, 1, HeadersCSS), {ok, <<"body{color:red}\n">>} = gun:await_body(ConnPid, PushCSS, infinity), %% Let's not forget about the response to the client's request. {response, fin, 200, _} = gun:await(ConnPid, Ref, infinity), gun:close(ConnPid).