%% Copyright (c) 2015-2017, 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(rfc7230_SUITE). -compile(export_all). -import(ct_helper, [doc/1]). -import(cowboy_test, [raw_open/1]). -import(cowboy_test, [raw_send/2]). -import(cowboy_test, [raw_recv_head/1]). -import(cowboy_test, [raw_recv/3]). all() -> [{group, http}]. groups() -> [{http, [parallel], ct_helper:all(?MODULE)}]. %% @todo parallel init_per_group(Name = http, Config) -> cowboy_test:init_http(Name = http, #{ env => #{dispatch => cowboy_router:compile(init_routes(Config))} }, Config). end_per_group(Name, _) -> ok = cowboy:stop_listener(Name). init_routes(_) -> [ {"localhost", [ {"/", hello_h, []}, {"/echo/:key", echo_h, []} %% @todo Something is clearly wrong about routing * right now. %% {"*", asterisk_h, []} ]}, {"127.0.0.1", [{"/echo/:key", echo_h, []}]}, {"example.org", [{"/echo/:key", echo_h, []}]} %% @todo Add IPv6 addresses support to the router. This fails: %% {"[2001:db8:85a3::8a2e:370:7334]", [{"/echo/:key", echo_h, []}]} ]. do_raw(Config, Data) -> Client = raw_open(Config), ok = raw_send(Client, Data), {Version, Code, Reason, Rest} = cow_http:parse_status_line(raw_recv_head(Client)), {Headers, Rest2} = cow_http:parse_headers(Rest), case lists:keyfind(<<"content-length">>, 1, Headers) of {_, LengthBin} when LengthBin =/= <<"0">> -> Length = binary_to_integer(LengthBin), Body = if byte_size(Rest2) =:= Length -> Rest2; true -> {ok, Body0} = raw_recv(Client, binary_to_integer(LengthBin) - byte_size(Rest2), 5000), << Rest2/bits, Body0/bits >> end, #{client => Client, version => Version, code => Code, reason => Reason, headers => Headers, body => Body}; _ -> #{client => Client, version => Version, code => Code, reason => Reason, headers => Headers, body => <<>>} end. %% Listener. %% @todo Add to documentation. %The default port for "http" connections is 80. The connection %uses plain TCP. (RFC7230 2.7.1) % %The default port for "https" connections is 443. The connection %uses TLS. (RFC7230 2.7.2) % %Any other port may be used for either of them. %% Before the request. accept_at_least_1_empty_line(Config) -> doc("A configurable number of empty lines (CRLF) preceding the request " "must be ignored. At least 1 empty line must be ignored. (RFC7230 3.5)"), #{code := 200} = do_raw(Config, "\r\n" "GET / HTTP/1.1\r\n" "Host: localhost\r\n" "\r\n"). reject_response(Config) -> doc("When receiving a response instead of a request, identified by the " "status-line which starts with the HTTP version, the server must " "reject the message with a 400 status code and close the connection. (RFC7230 3.1)"), #{code := 400, client := Client} = do_raw(Config, "HTTP/1.1 200 OK\r\n" "\r\n"), {error, closed} = raw_recv(Client, 0, 1000). %% Request. only_parse_necessary_elements(Config) -> doc("It is only necessary to parse elements required to process the request. (RFC7230 2.5)"), #{code := 200} = do_raw(Config, "GET / HTTP/1.1\r\n" "Host: localhost\r\n" "Content-type: purposefully bad header value\r\n" "\r\n"). %% @todo Add to documentation. %Parsed elements are subject to configurable limits. A server must %be able to parse elements at least as long as it generates. (RFC7230 2.5) no_empty_line_after_request_line(Config) -> doc("The general format of HTTP requests is strict. No empty line is " "allowed in-between components except for the empty line " "indicating the end of the list of headers."), #{code := 400} = do_raw(Config, "GET / HTTP/1.1\r\n" "\r\n" "Host: localhost\r\n" "\r\n"). no_empty_line_in_headers(Config) -> doc("The general format of HTTP requests is strict. No empty line is " "allowed in-between components except for the empty line " "indicating the end of the list of headers."), #{code := 400} = do_raw(Config, "GET / HTTP/1.1\r\n" "User-Agent: RFC7230\r\n" "\r\n" "Host: localhost\r\n" "\r\n"). timeout_before_request_line(Config) -> doc("The time the request (request line and headers) takes to be " "received by the server must be limited and subject to configuration. " "No response must be sent before closing if no request was initiated " "by the reception of a complete request-line."), Client = raw_open(Config), ok = raw_send(Client, "GET / HTTP/1.1\r"), {error, closed} = raw_recv(Client, 0, 6000). timeout_after_request_line(Config) -> doc("The time the request (request line and headers) takes to be " "received by the server must be limited and subject to configuration. " "A 408 status code must be sent if the request line was received."), #{code := 408, client := Client} = do_raw(Config, "GET / HTTP/1.1\r\n"), {error, closed} = raw_recv(Client, 0, 6000). %% @todo Add an HTTP/1.0 test suite. %An HTTP/1.1 server must understand any valid HTTP/1.0 request, %and respond to those with an HTTP/1.1 message that only use %features understood or safely ignored by HTTP/1.0 clients. (RFC7230 A) %% Request line. limit_request_line_8000(Config) -> doc("It is recommended to limit the request-line length to a configurable " "limit of at least 8000 octets."), LongPath = ["/long-path" || _ <- lists:seq(1, 799)], #{code := 200} = do_raw(Config, [ "GET /?qs=", LongPath, " HTTP/1.1\r\n" "Host: localhost\r\n" "\r\n"]). limit_request_line_9000(Config) -> doc("It is recommended to limit the request-line length to a configurable " "limit of at least 8000 octets. A request line too long must be rejected " "with a 414 status code and the closing of the connection. (RFC7230 3.1.1)"), LongPath = ["/long-path" || _ <- lists:seq(1, 899)], #{code := 414, client := Client} = do_raw(Config, [ "GET /very", LongPath, " HTTP/1.1\r\n" "Host: localhost\r\n" "\r\n"]), {error, closed} = raw_recv(Client, 0, 1000). %% Method. reject_invalid_method(Config) -> doc("The request method is defined as 1+ token characters. An invalid " "method must be rejected with a 400 status code and the " "closing of the connection. (RFC7230 3.1.1, RFC7230 3.2.6)"), #{code := 400, client := Client} = do_raw(Config, "GET\0 / HTTP/1.1\r\n" "Host: localhost\r\n" "\r\n"), {error, closed} = raw_recv(Client, 0, 1000). reject_empty_method(Config) -> doc("The request method is defined as 1+ token characters. An empty " "method must be rejected with a 400 status code and the " "closing of the connection. (RFC7230 3.1.1, RFC7230 3.2.6)"), #{code := 400, client := Client} = do_raw(Config, " / HTTP/1.1\r\n" "Host: localhost\r\n" "\r\n"), {error, closed} = raw_recv(Client, 0, 1000). %% @todo We probably want to directly match commonly used methods. %In practice the only characters in use by registered methods are %uppercase letters [A-Z] and the dash "-". (IANA HTTP Method Registry) limit_method_name(Config) -> doc("The length of the method must be subject to a configurable limit. " "A method too long must be rejected with a 501 status code and the " "closing of the connection. A good default for the method length limit " "is the longest method length the server implements. (RFC7230 3.1.1)"), LongMethod = [$G || _ <- lists:seq(1, 1000)], #{code := 501, client := Client} = do_raw(Config, [ LongMethod, " / HTTP/1.1\r\n" "Host: localhost\r\n" "\r\n"]), {error, closed} = raw_recv(Client, 0, 1000). %% Between method and request-target. reject_tab_between_method_and_request_target(Config) -> doc("A request that uses anything other than SP as separator between " "the method and the request-target must be rejected with a 400 " "status code and the closing of the connection. (RFC7230 3.1.1, RFC7230 3.5)"), #{code := 400, client := Client} = do_raw(Config, "GET\t/ HTTP/1.1\r\n" "Host: localhost\r\n" "\r\n"), {error, closed} = raw_recv(Client, 0, 1000). reject_two_sp_between_method_and_request_target(Config) -> doc("A request that uses anything other than SP as separator between " "the method and the request-target must be rejected with a 400 " "status code and the closing of the connection. (RFC7230 3.1.1, RFC7230 3.5)"), #{code := 400, client := Client} = do_raw(Config, "GET / HTTP/1.1\r\n" "Host: localhost\r\n" "\r\n"), {error, closed} = raw_recv(Client, 0, 1000). %% Request target. ignore_uri_fragment_after_path(Config) -> doc("The fragment part of the target URI is not sent. It must be " "ignored by a server receiving it. (RFC7230 5.1)"), Echo = <<"http://localhost/echo/url">>, #{code := 200, body := Echo} = do_raw(Config, "GET /echo/url#fragment HTTP/1.1\r\n" "Host: localhost\r\n" "\r\n"). ignore_uri_fragment_after_query(Config) -> doc("The fragment part of the target URI is not sent. It must be " "ignored by a server receiving it. (RFC7230 5.1)"), Echo = <<"http://localhost/echo/url?key=value">>, #{code := 200, body := Echo} = do_raw(Config, "GET /echo/url?key=value#fragment HTTP/1.1\r\n" "Host: localhost\r\n" "\r\n"). %% Request target: origin-form. must_understand_origin_form(Config) -> doc("A server must be able to handle at least origin-form and absolute-form. (RFC7230 5.3.2)"), #{code := 200} = do_raw(Config, "GET / HTTP/1.1\r\n" "Host: localhost\r\n" "\r\n"). origin_form_reject_if_connect(Config) -> doc("origin-form is used when the client does not connect to a proxy, " "does not use the CONNECT method and does not issue a site-wide " "OPTIONS request. (RFC7230 5.3.1)"), #{code := 400, client := Client} = do_raw(Config, "CONNECT / HTTP/1.1\r\n" "Host: localhost\r\n" "\r\n"), {error, closed} = raw_recv(Client, 0, 1000). %% @todo Equivalent test for https. origin_form_tcp_scheme(Config) -> doc("The scheme is either resolved from configuration or is \"https\" " "when on a TLS connection and \"http\" otherwise. (RFC7230 5.5)"), Echo = <<"http://localhost/echo/url">>, #{code := 200, body := Echo} = do_raw(Config, "GET /echo/url HTTP/1.1\r\n" "Host: localhost\r\n" "\r\n"). origin_form_path(Config) -> doc("The absolute-path always starts with \"/\" and ends with either \"?\", \"#\" " "or the end of the URI. (RFC3986 3.3)"), Echo = <<"/echo/path">>, #{code := 200, body := Echo} = do_raw(Config, "GET /echo/path HTTP/1.1\r\n" "Host: localhost\r\n" "\r\n"). origin_form_path_query(Config) -> doc("The absolute-path always starts with \"/\" and ends with either \"?\", \"#\" " "or the end of the URI. (RFC3986 3.3)"), Echo = <<"/echo/path">>, #{code := 200, body := Echo} = do_raw(Config, "GET /echo/path?key=value HTTP/1.1\r\n" "Host: localhost\r\n" "\r\n"). origin_form_path_fragment(Config) -> doc("The absolute-path always starts with \"/\" and ends with either \"?\", \"#\" " "or the end of the URI. (RFC3986 3.3)"), Echo = <<"/echo/path">>, #{code := 200, body := Echo} = do_raw(Config, "GET /echo/path#fragment HTTP/1.1\r\n" "Host: localhost\r\n" "\r\n"). origin_form_query(Config) -> doc("The query starts with \"?\" and ends with \"#\" or the end of the URI. (RFC3986 3.4)"), Echo = <<"key=value">>, #{code := 200, body := Echo} = do_raw(Config, "GET /echo/qs?key=value HTTP/1.1\r\n" "Host: localhost\r\n" "\r\n"). origin_form_query_fragment(Config) -> doc("The query starts with \"?\" and ends with \"#\" or the end of the URI. (RFC3986 3.4)"), Echo = <<"key=value">>, #{code := 200, body := Echo} = do_raw(Config, "GET /echo/qs?key=value#fragment HTTP/1.1\r\n" "Host: localhost\r\n" "\r\n"). %% @todo origin_form: reject paths with too large depth or query strings with too many keys %% Request target: absolute-form. must_understand_absolute_form(Config) -> doc("A server must be able to handle at least origin-form and absolute-form. (RFC7230 5.3.2)"), #{code := 200} = do_raw(Config, "GET http://localhost HTTP/1.1\r\n" "Host: localhost\r\n" "\r\n"). absolute_form_case_insensitive_scheme(Config) -> doc("The scheme is case insensitive and normally provided in lowercase. (RFC7230 2.7.3)"), Echo = <<"http://localhost/echo/url">>, #{code := 200, body := Echo} = do_raw(Config, "GET HttP://localhost/echo/url HTTP/1.1\r\n" "Host: localhost\r\n" "\r\n"). absolute_form_case_insensitive_host(Config) -> doc("The host is case insensitive and normally provided in lowercase. (RFC7230 2.7.3)"), Echo = <<"http://localhost/echo/url">>, #{code := 200, body := Echo} = do_raw(Config, "GET http://LoCaLHOsT/echo/url HTTP/1.1\r\n" "Host: localhost\r\n" "\r\n"). absolute_form_reject_unknown_schemes(Config) -> doc("Unknown schemes must be rejected with a 400 status code and the closing of the connection."), #{code := 400, client := Client} = do_raw(Config, "GET bad://localhost/ HTTP/1.1\r\n" "Host: localhost\r\n" "\r\n"), {error, closed} = raw_recv(Client, 0, 1000). %% @todo Equivalent test for https. absolute_form_drop_scheme_tcp(Config) -> doc("The scheme provided with the request must be dropped. The effective " "scheme is either resolved from configuration or is \"https\" when on " "a TLS connection and \"http\" otherwise. (RFC7230 5.5)"), Echo = <<"http://localhost/echo/url">>, #{code := 200, body := Echo} = do_raw(Config, "GET https://localhost/echo/url HTTP/1.1\r\n" "Host: localhost\r\n" "\r\n"). absolute_form_reject_userinfo(Config) -> doc("An authority component with a userinfo component (and its " "\"@\" delimiter) is invalid. The request must be rejected with " "a 400 status code and the closing of the connection. (RFC7230 2.7.1)"), #{code := 400, client := Client} = do_raw(Config, "GET http://username:password@localhost HTTP/1.1\r\n" "Host: localhost\r\n" "\r\n"), {error, closed} = raw_recv(Client, 0, 1000). absolute_form_reject_missing_host_without_path(Config) -> doc("A URI with a missing host identifier is invalid. The request must " "be rejected with a 400 status code and the closing of the connection. (RFC7230 2.7.1)"), #{code := 400, client := Client} = do_raw(Config, "GET http:// HTTP/1.1\r\n" "Host: localhost\r\n" "\r\n"), {error, closed} = raw_recv(Client, 0, 1000). absolute_form_reject_missing_host_with_path(Config) -> doc("A URI with a missing host identifier is invalid. The request must " "be rejected with a 400 status code and the closing of the connection. (RFC7230 2.7.1)"), #{code := 400, client := Client} = do_raw(Config, "GET http:/// HTTP/1.1\r\n" "Host: localhost\r\n" "\r\n"), {error, closed} = raw_recv(Client, 0, 1000). absolute_form_ipv4(Config) -> doc("Absolute form with an IPv4 address for the host. (RFC3986 3.2.2)"), Echo = <<"127.0.0.1">>, #{code := 200, body := Echo} = do_raw(Config, "GET http://127.0.0.1/echo/host HTTP/1.1\r\n" "Host: 127.0.0.1\r\n" "\r\n"). absolute_form_ipv4_port(Config) -> doc("Absolute form with an IPv4 address for the host and a port number. (RFC3986 3.2.2)"), Host = <<"127.0.0.1">>, #{code := 200, body := Host} = do_raw(Config, "GET http://127.0.0.1:8080/echo/host HTTP/1.1\r\n" "Host: 127.0.0.1:8080\r\n" "\r\n"), Port = <<"8080">>, #{code := 200, body := Port} = do_raw(Config, "GET http://127.0.0.1:8080/echo/port HTTP/1.1\r\n" "Host: 127.0.0.1:8080\r\n" "\r\n"). %% @todo We need the router to support IPv6 addresses to write proper tests for these: %absolute_form_ipv6(Config) -> %absolute_form_ipv6_ipv4(Config) -> %absolute_form_ipv6_zoneid(Config) -> absolute_form_reg_name(Config) -> doc("Absolute form with a regular name for the host. (RFC3986 3.2.2)"), Echo = <<"example.org">>, #{code := 200, body := Echo} = do_raw(Config, "GET http://example.org/echo/host HTTP/1.1\r\n" "Host: example.org\r\n" "\r\n"). absolute_form_reg_name_port(Config) -> doc("Absolute form with an IPv4 address for the host and a port number. (RFC3986 3.2.2)"), Host = <<"example.org">>, #{code := 200, body := Host} = do_raw(Config, "GET http://example.org:8080/echo/host HTTP/1.1\r\n" "Host: example.org:8080\r\n" "\r\n"), Port = <<"8080">>, #{code := 200, body := Port} = do_raw(Config, "GET http://example.org:8080/echo/port HTTP/1.1\r\n" "Host: example.org:8080\r\n" "\r\n"). absolute_form_limit_host(Config) -> doc("The maximum length for the host component of the URI must be subject " "to a configurable limit. A good default is 255 characters. " "(RFC7230 3.1.1, RFC3986 3.2.2, RFC1034 3.1)"), LongHost = ["host." || _ <- lists:seq(1, 100)], #{code := 414, client := Client} = do_raw(Config, [ "GET http://", LongHost, "/ HTTP/1.1\r\n" "Host: ", LongHost, "\r\n" "\r\n"]), {error, closed} = raw_recv(Client, 0, 1000). absolute_form_invalid_port_0(Config) -> doc("Port number 0 is reserved. The request must be rejected and the connection closed."), #{code := 400, client := Client} = do_raw(Config, "GET http://localhost:0/ HTTP/1.1\r\n" "Host: localhost:0\r\n" "\r\n"), {error, closed} = raw_recv(Client, 0, 1000). absolute_form_invalid_port_65536(Config) -> doc("Port numbers above 65535 are invalid. The request must be rejected and the connection closed."), #{code := 400, client := Client} = do_raw(Config, "GET http://localhost:65536/ HTTP/1.1\r\n" "Host: localhost:65536\r\n" "\r\n"), {error, closed} = raw_recv(Client, 0, 1000). %% @todo The RFC says to discard the Host header if we are a proxy, %% and replace it with the content of absolute-form. This means %% that we should probably keep the absolute-form value when %% operating in proxy mode. Otherwise the absolute-form value %% is simply dropped and the Host header is used. %% @todo The authority is sent both in the URI and in the host header. %% The authority from the URI must be dropped, and the host header %% must be used instead. (RFC7230 5.5) %% %% It is not possible to test that the absolute-form value is dropped %% because one of the Host header test ensures that the authority %% is the same in both, and errors out otherwise. absolute_form_path(Config) -> doc("The path always starts with \"/\" and ends with either \"?\", \"#\" " "or the end of the URI. (RFC3986 3.3)"), Echo = <<"/echo/path">>, #{code := 200, body := Echo} = do_raw(Config, "GET http://localhost/echo/path HTTP/1.1\r\n" "Host: localhost\r\n" "\r\n"). absolute_form_path_query(Config) -> doc("The path always starts with \"/\" and ends with either \"?\", \"#\" " "or the end of the URI. (RFC3986 3.3)"), Echo = <<"/echo/path">>, #{code := 200, body := Echo} = do_raw(Config, "GET http://localhost/echo/path?key=value HTTP/1.1\r\n" "Host: localhost\r\n" "\r\n"). absolute_form_path_fragment(Config) -> doc("The path always starts with \"/\" and ends with either \"?\", \"#\" " "or the end of the URI. (RFC3986 3.3)"), Echo = <<"/echo/path">>, #{code := 200, body := Echo} = do_raw(Config, "GET http://localhost/echo/path#fragment HTTP/1.1\r\n" "Host: localhost\r\n" "\r\n"). absolute_form_no_path(Config) -> doc("An empty path component is equivalent to \"/\". (RFC7230 2.7.3)"), #{code := 200, body := <<"Hello world!">>} = do_raw(Config, "GET http://localhost HTTP/1.1\r\n" "Host: localhost\r\n" "\r\n"). absolute_form_no_path_then_query(Config) -> doc("An empty path component is equivalent to \"/\". (RFC7230 2.7.3)"), #{code := 200, body := <<"Hello world!">>} = do_raw(Config, "GET http://localhost?key=value HTTP/1.1\r\n" "Host: localhost\r\n" "\r\n"). absolute_form_no_path_then_fragment(Config) -> doc("An empty path component is equivalent to \"/\". (RFC7230 2.7.3)"), #{code := 200, body := <<"Hello world!">>} = do_raw(Config, "GET http://localhost#fragment HTTP/1.1\r\n" "Host: localhost\r\n" "\r\n"). absolute_form_query(Config) -> doc("The query starts with \"?\" and ends with \"#\" or the end of the URI. (RFC3986 3.4)"), Echo = <<"key=value">>, #{code := 200, body := Echo} = do_raw(Config, "GET http://localhost/echo/qs?key=value HTTP/1.1\r\n" "Host: localhost\r\n" "\r\n"). absolute_form_query_fragment(Config) -> doc("The query starts with \"?\" and ends with \"#\" or the end of the URI. (RFC3986 3.4)"), Echo = <<"key=value">>, #{code := 200, body := Echo} = do_raw(Config, "GET http://localhost/echo/qs?key=value#fragment HTTP/1.1\r\n" "Host: localhost\r\n" "\r\n"). %% @todo absolute_form: reject paths with too large depth or query strings with too many keys %% Request-target: authority-form. authority_form_reject_if_not_connect(Config) -> doc("When the method is CONNECT, authority-form must be used. This " "form does not apply to any other methods which must reject the " "request with a 400 status code and the closing of the connection. (RFC7230 5.3.3)"), #{code := 400, client := Client} = do_raw(Config, "GET localhost:80 HTTP/1.1\r\n" "Host: localhost\r\n" "\r\n"), {error, closed} = raw_recv(Client, 0, 1000). %% @todo Implement CONNECT. %authority_form_reject_userinfo(Config) -> %An authority component with a userinfo component (and its %"@" delimiter) is invalid. The request must be rejected with %a 400 status code and the closing of the connection. (RFC7230 2.7.1) % %authority_form_limit_host(Config) -> %authority_form_limit_port0(Config) -> %authority_form_limit_port65536(Config) -> % %A request with a too long component of authority-form must be rejected with %a 414 status code and the closing of the connection. (RFC7230 3.1.1) % %The authority is either resolved from configuration or is taken %directly from authority-form. (RFC7230 5.5) % %authority_form_empty_path(Config) -> %authority_form_empty_query(Config) -> %The path and query are empty when using authority-form. (RFC7230 5.5) %% Request-target: asterisk-form. asterisk_form_reject_if_not_options(Config) -> doc("asterisk-form is used for server-wide OPTIONS requests. " "It is invalid with any other methods which must reject the " "request with a 400 status code and the closing of the connection. (RFC7230 5.3.4)"), #{code := 400, client := Client} = do_raw(Config, "GET * HTTP/1.1\r\n" "Host: localhost\r\n" "\r\n"), {error, closed} = raw_recv(Client, 0, 1000). asterisk_form_empty_path(Config) -> doc("The path is empty when using asterisk-form. (RFC7230 5.5)"), #{code := 200, body := <<>>} = do_raw(Config, "OPTIONS * HTTP/1.1\r\n" "Host: localhost\r\n" "X-Echo: path\r\n" "\r\n"). asterisk_form_empty_query(Config) -> doc("The query is empty when using asterisk-form. (RFC7230 5.5)"), #{code := 200, body := <<>>} = do_raw(Config, "OPTIONS * HTTP/1.1\r\n" "Host: localhost\r\n" "X-Echo: query\r\n" "\r\n"). %% Invalid request-target. invalid_request_target(Config) -> doc("Any other form is invalid and must be rejected with a 400 status code " "and the closing of the connection."), #{code := 400, client := Client} = do_raw(Config, "GET \0 HTTP/1.1\r\n" "Host: localhost\r\n" "\r\n"), {error, closed} = raw_recv(Client, 0, 1000). %% Between request-target and version. reject_tab_between_request_target_and_version(Config) -> doc("A request that uses anything other than SP as separator between " "the request-target and the version must be rejected with a 400 " "status code and the closing of the connection. (RFC7230 3.1.1, RFC7230 3.5)"), #{code := 400, client := Client} = do_raw(Config, "GET /\tHTTP/1.1\r\n" "Host: localhost\r\n" "\r\n"), {error, closed} = raw_recv(Client, 0, 1000). reject_two_sp_between_request_target_and_version(Config) -> doc("A request that uses anything other than SP as separator between " "the request-target and the version must be rejected with a 400 " "status code and the closing of the connection. (RFC7230 3.1.1, RFC7230 3.5)"), #{code := 400, client := Client} = do_raw(Config, "GET / HTTP/1.1\r\n" "Host: localhost\r\n" "\r\n"), {error, closed} = raw_recv(Client, 0, 1000). %% Request version. reject_invalid_version_http100(Config) -> doc("Any version number other than HTTP/1.0 or HTTP/1.1 must be " "rejected by a server or intermediary with a 505 status code. (RFC7230 2.6, RFC7230 A.2)"), #{code := 505} = do_raw(Config, "GET / HTTP/1.00\r\n" "Host: localhost\r\n" "\r\n"). reject_invalid_version_http111(Config) -> doc("Any version number other than HTTP/1.0 or HTTP/1.1 must be " "rejected by a server or intermediary with a 505 status code. (RFC7230 2.6, RFC7230 A.2)"), #{code := 505} = do_raw(Config, "GET / HTTP/1.11\r\n" "Host: localhost\r\n" "\r\n"). reject_invalid_version_http12(Config) -> doc("Any version number other than HTTP/1.0 or HTTP/1.1 must be " "rejected by a server or intermediary with a 505 status code. (RFC7230 2.6, RFC7230 A.2)"), #{code := 505} = do_raw(Config, "GET / HTTP/1.2\r\n" "Host: localhost\r\n" "\r\n"). reject_invalid_version_http2(Config) -> doc("Any version number other than HTTP/1.0 or HTTP/1.1 must be " "rejected by a server or intermediary with a 505 status code. (RFC7230 2.6, RFC7230 A.2)"), #{code := 505} = do_raw(Config, "GET / HTTP/2\r\n" "Host: localhost\r\n" "\r\n"). reject_empty_version(Config) -> doc("Any version number other than HTTP/1.0 or HTTP/1.1 must be " "rejected by a server or intermediary with a 505 status code. (RFC7230 2.6, RFC7230 A.2)"), #{code := 505} = do_raw(Config, "GET / \r\n" "Host: localhost\r\n" "\r\n"). reject_invalid_whitespace_after_version(Config) -> doc("A request that has whitespace different than CRLF following the " "version must be rejected with a 400 status code and the closing " "of the connection. (RFC7230 3.1.1)"), #{code := 400, client := Client} = do_raw(Config, "GET / HTTP/1.1 \r\n" "Host: localhost\r\n" "\r\n"), {error, closed} = raw_recv(Client, 0, 1000). %% Request headers. %invalid_header(Config) -> %``` %headers = *( header-field CRLF ) CRLF %header-field = field-name ":" OWS field-value OWS % %field-name = token %field-value = *( SP / HTAB / %21-7E / %80-FF ) % %OWS = *( SP / HTAB ) %``` % %lower_case_header(Config) -> %upper_case_header(Config) -> %mixed_case_header(Config) -> %The header field name is case insensitive. (RFC7230 3.2) % %reject_whitespace_before_header_name(Config) -> %Messages that contain whitespace before the header name must %be rejected with a 400 status code and the closing of the %connection. (RFC7230 3.2.4) % %reject_whitespace_between_header_name_and_colon(Config) -> %Messages that contain whitespace between the header name and %colon must be rejected with a 400 status code and the closing %of the connection. (RFC7230 3.2.4) limit_header_name(Config) -> doc("The header name must be subject to a configurable limit. A " "good default is 50 characters, well above the longest registered " "header. Such a request must be rejected with a 431 status code " "and the closing of the connection. " "(RFC7230 3.2.5, RFC6585 5, IANA Message Headers registry)"), #{code := 431, client := Client} = do_raw(Config, [ "GET / HTTP/1.1\r\n" "Host: localhost\r\n", binary:copy(<<$a>>, 32768), ": bad\r\n" "\r\n"]), {error, closed} = raw_recv(Client, 0, 1000). limit_header_value(Config) -> doc("The header value and the optional whitespace around it must be " "subject to a configurable limit. There is no recommendations " "for the default. 4096 characters is known to work well. Such " "a request must be rejected with a 431 status code and the closing " "of the connection. (RFC7230 3.2.5, RFC6585 5)"), #{code := 431, client := Client} = do_raw(Config, [ "GET / HTTP/1.1\r\n" "Host: localhost\r\n" "bad: ", binary:copy(<<$a>>, 32768), "\r\n" "\r\n"]), {error, closed} = raw_recv(Client, 0, 1000). %drop_whitespace_before_header_value(Config) -> %drop_whitespace_after_header_value(Config) -> %Optional whitespace before and after the header value is not %part of the value and must be dropped. % %@todo %The order of header fields with differing names is not significant. (RFC7230 3.2.2) % %@todo %The normal procedure for parsing headers is to read each header %field into a hash table by field name until the empty line. (RFC7230 3) % %reject_duplicate_content_length_header(Config) -> %reject_duplicate_host_header(Config) -> %Requests with duplicate content-length or host headers must be rejected %with a 400 status code and the closing of the connection. (RFC7230 3.3.2) % %combine_duplicate_headers(Config) -> %Other duplicate header fields must be combined by inserting a comma %between the values in the order they were received. (RFC7230 3.2.2) % %Duplicate header field names are only allowed when their value is %a comma-separated list. In practice there is no need to perform %a check while reading the headers as the value will become invalid %and the error can be handled while parsing the header later on. (RFC7230 3.2.2) % %wait_for_eoh_before_processing_request(Config) -> %The request must not be processed until all headers have arrived. (RFC7230 3.2.2) % %limit_headers(Config) -> %The number of headers allowed in a request must be subject to %a configurable limit. There is no recommendations for the default. %100 headers is known to work well. Such a request must be rejected %with a 431 status code and the closing of the connection. (RFC7230 3.2.5, RFC6585 5) % %@todo %When parsing header field values, the server must ignore empty %list elements, and not count those as the count of elements present. (RFC7230 7) % %@todo %The information in the via header is largely unreliable. (RFC7230 5.7.1) % %%% Request body. % %@todo %The message body is the octets after decoding any transfer %codings. (RFC7230 3.3) % %no_request_body(Config) -> %no_request_body_content_length_zero(Config) -> %request_body_content_length(Config) -> %request_body_transfer_encoding(Config) -> %A request has a message body only if it includes a transfer-encoding %header or a non-zero content-length header. (RFC7230 3.3) % %``` %Transfer-Encoding = 1#transfer-coding % %transfer-coding = "chunked" / "compress" / "deflate" / "gzip" / transfer-extension %transfer-extension = token *( OWS ";" OWS transfer-parameter ) %transfer-parameter = token BWS "=" BWS ( token / quoted-string ) %``` % %case_insensitive_transfer_encoding(Config) -> %The transfer-coding is case insensitive. (RFC7230 4) % %@todo %There are no known other transfer-extension with the exception of %deprecated aliases "x-compress" and "x-gzip". (IANA HTTP Transfer Coding Registry, %RFC7230 4.2.1, RFC7230 4.2.3, RFC7230 8.4.2) % %must_understand_chunked(Config) -> %A server must be able to handle at least chunked transfer-encoding. %This is also the only coding that sees widespread use. (RFC7230 3.3.1, RFC7230 4.1) % %reject_double_chunked_encoding(Config) -> %Messages encoded more than once with chunked transfer-encoding %must be rejected with a 400 status code and the closing of the %connection. (RFC7230 3.3.1) % %reject_non_terminal_chunked(Config) -> %Messages where chunked, when present, is not the last %transfer-encoding must be rejected with a 400 status code %and the closing of the connection. (RFC7230 3.3.3) % %@todo %Some non-conformant implementations send the "deflate" compressed %data without the zlib wrapper. (RFC7230 4.2.2) % %reject_unknown_transfer_encoding(Config) -> %Messages encoded with a transfer-encoding the server does not %understand must be rejected with a 501 status code and the %closing of the connection. (RFC7230 3.3.1) % %@todo %A server can reject requests with a body and no content-length %header with a 411 status code. (RFC7230 3.3.3) % %``` %Content-Length = 1*DIGIT %``` % %reject_invalid_content_length(Config) -> %A request with an invalid content-length header must be rejected %with a 400 status code and the closing of the connection. (RFC7230 3.3.3) % %@todo %The content-length header ranges from 0 to infinity. Requests %with a message body too large must be rejected with a 413 status %code and the closing of the connection. (RFC7230 3.3.2) % %ignore_content_length_when_transfer_encoding(Config) -> %When a message includes both transfer-encoding and content-length %headers, the content-length header must be removed before processing %the request. (RFC7230 3.3.3) % %socket_error_while_reading_body(Config) -> %If a socket error occurs while reading the body the server %must send a 400 status code response and close the connection. (RFC7230 3.3.3, RFC7230 3.4) % %timeout_while_reading_body(Config) -> %If a timeout occurs while reading the body the server must %send a 408 status code response and close the connection. (RFC7230 3.3.3, RFC7230 3.4) % %%% Body length. % %body_length_chunked_before(Config) -> %The length of a message with a transfer-encoding header can %only be determined on decoding completion. (RFC7230 3.3.3) % %body_length_chunked_after(Config) -> %Upon completion of chunk decoding the server must add a content-length %header with the value set to the total length of data read. (RFC7230 4.1.3) % %body_length_content_length(Config) -> %The length of a message with a content-length header is %the numeric value in octets found in the header. (RFC7230 3.3.3) % %body_length_zero(Config) -> %A message with no transfer-encoding or content-length header %has a body length of 0. (RFC7230 3.3.3) % %%% Chunked transfer-encoding. % %reject_invalid_chunk_size(Config) -> % %``` %chunked-body = *chunk last-chunk trailer-part CRLF % %chunk = chunk-size [ chunk-ext ] CRLF chunk-data CRLF %chunk-size = 1*HEXDIG %chunk-data = 1*OCTET ; a sequence of chunk-size octets % %last-chunk = 1*("0") [ chunk-ext ] CRLF %``` % %The chunk-size field is a string of hex digits indicating the size of %the chunk-data in octets. % %``` %chunk-ext = *( ";" chunk-ext-name [ "=" chunk-ext-val ] ) %chunk-ext-name = token %chunk-ext-val = token / quoted-string %``` % %ignore_unknown_chunk_extensions(Config) -> %Unknown chunk extensions must be ignored. (RFC7230 4.1.1) % %reject_invalid_chunk_extensions(Config) -> % %limit_chunk_size_line(Config) -> %The chunk-size line length must be subject to configuration. %There are no recommended defaults, although 100 octets should work. %Requests with a too long line must be rejected with a 400 status %code and the closing of the connection. % %reject_invalid_chunk_line_crlf(Config) -> %reject_invalid_chunk_data_crlf(Config) -> % %``` %trailer-part = *( header-field CRLF ) %``` % %%% @todo see headers above and reject the same way, space etc. %reject_invalid_trailer_part(Config) -> % %ignore_trailer_transfer_encoding(Config) -> %ignore_trailer_content_length(Config) -> %ignore_trailer_host(Config) -> %ignore_trailer_cache_control(Config) -> %ignore_trailer_expect(Config) -> %ignore_trailer_max_forwards(Config) -> %ignore_trailer_pragma(Config) -> %ignore_trailer_range(Config) -> %ignore_trailer_te(Config) -> %ignore_trailer_if_match(Config) -> %ignore_trailer_if_none_match(Config) -> %ignore_trailer_if_modified_since(Config) -> %ignore_trailer_if_unmodified_since(Config) -> %ignore_trailer_if_range(Config) -> %ignore_trailer_www_authenticate(Config) -> %ignore_trailer_authorization(Config) -> %ignore_trailer_proxy_authenticate(Config) -> %ignore_trailer_proxy_authorization(Config) -> %ignore_trailer_content_encoding(Config) -> %ignore_trailer_content_type(Config) -> %ignore_trailer_content_range(Config) -> %ignore_trailer_trailer(Config) -> % %ignore_trailer_header(Config, Header) -> %Trailing headers must not include transfer-encoding, content-length, %host, cache-control, expect, max-forwards, pragma, range, te, %if-match, if-none-match, if-modified-since, if-unmodified-since, %if-range, www-authenticate, authorization, proxy-authenticate, %proxy-authorization, age, cache-control, expires, date, location, %retry-after, vary, warning, content-encoding, content-type, %content-range, or trailer. (RFC7230 4.1.2) % %Trailer headers can be ignored safely. (RFC7230 4.1.2) % %When trailer headers are processed, invalid headers must be ignored. %Valid headers must be added to the list of headers of the request. (RFC7230 4.1.2) % %limit_trailer_headers(Config) -> %The number of trailer headers must be subject to configuration. %There is no known recommendations for the default. A value of 10 %should cover most cases. Requests with too many trailer headers %must be rejected with a 431 status code and the closing of the %connection. (RFC6585 5) % %remove_transfer_encoding_chunked_after_body_read(Config) -> %Upon completion of chunk decoding the server must remove "chunked" %from the transfer-encoding header. This header must be removed if %it becomes empty following this removal. (RFC7230 4.1.3) % %remove_trailer_after_body_read(Config) -> %Upon completion of chunk decoding the server must remove the trailer %header from the list of headers. (RFC7230 4.1.3) % %``` %Trailer = 1#field-name %``` % %ignore_chunked_headers_not_in_trailer(Config) -> %The trailer header can be used to list the headers found in the %trailer. A server must have the option of ignoring trailer headers %that were not listed in the trailer header. (RFC7230 4.4) % %ignore_chunked_headers_if_trailer_not_in_connection(Config) -> %The trailer header must be listed in the connection header field. %Trailers must be ignored otherwise. % %%% @todo Though we need a compatibility mode as some clients don't send it... %reject_chunked_missing_end_crlf(Config) -> %@todo ending CRLF % %%% Connection management. % %@todo can probably test using auth %Never assume any two requests on a single connection come %from the same user agent. (RFC7230 2.3) % %``` %Connection = 1#token ; case-insensitive %``` % %The connection token is either case insensitive "close", "keep-alive" %or a header field name. % %There are no corresponding "close" or "keep-alive" headers. (RFC7230 8.1, RFC7230 A.2) % %The connection header is valid only for the immediate connection, %alongside any header field it lists. (RFC7230 6.1) % %The server must determine if the connection is persistent for %every message received by looking at the connection header and %HTTP version. (RFC7230 6.3) % %no_connection_header_keepalive(Config) -> %%% @todo http/1.0 suite? connection_keepalive(Config) -> %HTTP/1.1 requests with no "close" option and HTTP/1.0 with the %"keep-alive" option indicate the connection will persist. (RFC7230 6.1, RFC7230 6.3) % %connection_close(Config) -> %%% @todo http/1.0 suite? no_connection_close(Config) -> %HTTP/1.1 requests with the "close" option and HTTP/1.0 with no %"keep-alive" option indicate the connection will be closed %upon reception of the response by the client. (RFC7230 6.1, RFC7230 6.3) % %limit_requests_keepalive(Config) -> %The maximum number of requests sent using a persistent connection %must be subject to configuration. The connection must be closed %when the limit is reached. (RFC7230 6.3) % %skip_request_body_by_closing_connection(Config) -> %%A server that doesn't want to read the entire body of a message %%must close the connection, if possible after sending the "close" %%connection option in the response. (RFC7230 6.3) % %pipeline(Config) -> %%% @todo pipeline_parallel (safe methods can, others can't) %A server can receive more than one request before any response %is sent. This is called pipelining. The requests can be processed %in parallel if they all have safe methods. Responses must be sent %in the same order as the requests. (RFC7230 6.3.2) % %@todo %The server must reject abusive traffic by closing the connection. %Abusive traffic can come from the form of too many requests in a %given amount of time, or too many concurrent connections. Limits %must be subject to configuration. (RFC7230 6.4) % %close_inactive_connections(Config) -> %The server must close inactive connections. The timeout %must be subject to configuration. (RFC7230 6.5) % %@todo %The server must monitor connections for the close signal %and close the socket on its end accordingly. (RFC7230 6.5) % %@todo %A connection close may occur at any time. (RFC7230 6.5) % %ignore_requests_after_connection_close(Config) -> %The server must not process any request after sending or %receiving the "close" connection option. (RFC7230 6.6) % %@todo %The server must close the connection in stages to avoid the %TCP reset problem. The server starts by closing the write %side of the socket. The server then reads until it detects %the socket has been closed, until it can be certain its %last response has been received by the client, or until %a close or timeout occurs. The server then fully close the %connection. (6.6) % %%% Routing. % %``` %Host = authority ; same as authority-form %``` % %reject_missing_host(Config) -> %An HTTP/1.1 request that lacks a host header must be rejected with %a 400 status code and the closing of the connection. (RFC7230 5.4) % %%% @todo http/1.0 missing_host(Config) -> %An HTTP/1.0 request that lack a host header is valid. Behavior %for these requests is configuration dependent. (RFC7230 5.5) % %reject_invalid_host(Config) -> %A request with an invalid host header must be rejected with a %400 status code and the closing of the connection. (RFC7230 5.4) % %reject_userinfo(Config) -> %An authority component with a userinfo component (and its %"@" delimiter) is invalid. The request must be rejected with %a 400 status code and the closing of the connection. (RFC7230 2.7.1) % %reject_absolute_form_different_host(Config) -> %When using absolute-form the URI authority component must be %identical to the host header. Invalid requests must be rejected %with a 400 status code and the closing of the connection. (RFC7230 5.4) % %reject_authority_form_different_host(Config) -> %When using authority-form the URI authority component must be %identical to the host header. Invalid requests must be rejected %with a 400 status code and the closing of the connection. % %empty_host(Config) -> %The host header is empty when the authority component is undefined. (RFC7230 5.4) % %@todo %The effective request URI can be rebuilt by concatenating scheme, %"://", authority, path and query components. (RFC7230 5.5) % %@todo %Resources with identical URI except for the scheme component %must be treated as different. (RFC7230 2.7.2) % %%% Response. % %@todo %A server can send more than one response per request only when a %1xx response is sent preceding the final response. (RFC7230 5.6) % %@todo %A server that does parallel pipelining must send responses in the %same order as the requests came in. (RFC7230 5.6) % %``` %HTTP-response = status-line *( header-field CRLF ) CRLF [ message-body ] %``` % %@todo %The response format must be followed strictly. % %``` %status-line = HTTP-version SP status-code SP reason-phrase CRLF %status-code = 3DIGIT %reason-phrase = *( HTAB / SP / VCHAR / obs-text ) %``` % %http10_request_http11_response(Config) -> %A server must send its own version. (RFC7230 2.6) % %@todo %An HTTP/1.1 server may send an HTTP/1.0 version for compatibility purposes. (RFC7230 2.6) % %@todo %RFC6585 defines additional status code a server can use to reject %messages. (RFC7230 9.3, RFC6585) % %%% Response headers. % %@todo %In responses, OWS must be generated as SP or not generated %at all. RWS must be generated as SP. BWS must not be %generated. (RFC7230 3.2.3) % %``` %header-field = field-name ":" SP field-value % %field-name = token ; case-insensitive %field-value = *( SP / %21-7E / %80-FF ) %``` % %@todo %In quoted-string found in field-value, quoted-pair must only be %used for DQUOTE and backslash. (RFC7230 3.2.6) % %@todo %HTTP header values must use US-ASCII encoding and must only send %printable characters or SP. (RFC7230 3.2.4, RFC7230 9.4) % %@todo %The server must not generate empty list elements in headers. (RFC7230 7) % %@todo %When encoding an URI as part of a response, only characters that %are reserved need to be percent-encoded. (RFC7230 2.7.3) % %special_set_cookie_handling(Config) -> %The set-cookie header must be handled as a special case. There %must be exactly one set-cookie header field per cookie. (RFC7230 3.2.2) % %@todo %The server must list headers for or about the immediate connection %in the connection header field. (RFC7230 6.1) % %@todo %A server that does not support persistent connections must %send "close" in every non-1xx response. (RFC7230 6.1) % %no_close_in_100_response(Config) -> %no_close_in_101_response(Config) -> %no_close_in_102_response(Config) -> %A server must not send a "close" connection option %in 1xx responses. (RFC7230 6.1) % %@todo %The "close" connection must be sent in a message when the %sender knows it will close the connection after fully sending %the response. (RFC7230 6.6) % %@todo %A server must close the connection after sending or %receiving a "close" once the response has been sent. (RFC7230 6.6) % %close_request_close_response(Config) -> %A server must send a "close" in a response to a request %containing a "close". (RFC7230 6.6) % %%% Response body. % %no_body_in_head_response(Config) -> %% @todo test different ways to send a body in response %Responses to HEAD requests never include a message body. (RFC7230 3.3) % %%% @todo Implement CONNECT %2xx responses to CONNECT requests never include a message %body. (RFC7230 3.3) % %no_body_in_100_response(Config) -> %no_body_in_101_response(Config) -> %no_body_in_102_response(Config) -> %no_body_in_204_response(Config) -> %no_body_in_304_response(Config) -> %1xx, 204 and 304 responses never include a message body. (RFC7230 3.3) % %same_content_length_as_get_in_head_response(Config) -> %same_transfer_encoding_as_get_in_head_response(Config) -> %same_content_length_as_200_in_304_response(Config) -> %same_transfer_encoding_as_200_in_304_response(Config) -> %Responses to HEAD requests and 304 responses can include a %content-length or transfer-encoding header. Their value must %be the same as if the request was an unconditional GET. (RFC7230 3.3, RFC7230 3.3.1, RFC7230 3.3.2) % %no_transfer_encoding_in_100_response(Config) -> %no_transfer_encoding_in_101_response(Config) -> %no_transfer_encoding_in_102_response(Config) -> %no_transfer_encoding_in_204_response(Config) -> %%% @todo CONNECT no_transfer_encoding_in_2xx_response_to_connect_request(Config) -> %no_content_length_in_100_response(Config) -> %no_content_length_in_101_response(Config) -> %no_content_length_in_102_response(Config) -> %no_content_length_in_204_response(Config) -> %%% @todo CONNECT no_content_length_in_2xx_response_to_connect_request(Config) -> %1xx, 204 responses and "2xx responses to CONNECT requests" must %not include a content-length or transfer-encoding header. (RFC7230 3.3.1, RFC7230 3.3.2) % %``` %message-body = *OCTET %``` % %The message body is the octets after decoding any transfer %codings. (RFC7230 3.3) % %content_length_0_when_no_body(Config) -> %content_length_response(Config) -> %When the length is known in advance, the server must send a %content-length header, including if the length is 0. (RFC7230 3.3.2, RFC7230 3.3.3) % %chunked_response(Config) -> %When the length is not known in advance, the chunked transfer-encoding %must be used. (RFC7230 3.3.2, RFC7230 3.3.3) % %compat_no_content_length_or_transfer_encoding_close_on_body_end(Config) -> %For compatibility purposes a server can send no content-length or %transfer-encoding header. In this case the connection must be %closed after the response has been sent fully. (RFC7230 3.3.2, RFC7230 3.3.3) % %no_content_length_if_transfer_encoding(Config) -> %The content-length header must not be sent when a transfer-encoding %header already exists. (RFC7230 3.3.2) % %@todo %The server must not apply the chunked transfer-encoding more than %once. (RFC7230 3.3.1) % %@todo %The server must apply the chunked transfer-encoding last. (RFC7230 3.3.1) % %http10_request_no_transfer_encoding_in_response(Config) -> %The transfer-encoding header must not be sent in responses to %HTTP/1.0 requests, or in responses that use the HTTP/1.0 version. %No transfer codings must be applied in these cases. (RFC7230 3.3.1) % %``` %TE = #t-codings % %t-codings = "trailers" / ( transfer-coding [ t-ranking ] ) %t-ranking = OWS ";" OWS "q=" rank %rank = ( "0" [ "." 0*3DIGIT ] ) / ( "1" [ "." 0*3("0") ] ) %``` % %no_te_no_trailers(Config) -> %te_trailers(Config) -> %Trailers can only be sent if the request includes a TE header %containing "trailers". (RFC7230 4.1.2) % %te_ignore_chunked(Config) -> %te_ignore_chunked_0(Config) -> %The presence of "chunked" in a TE header must be ignored as it %is always acceptable with HTTP/1.1. (RFC7230 4.3) % %%% @todo te_not_acceptable_coding(Config) -> %A qvalue of 0 in the TE header means "not acceptable". (RFC7230 4.3) % %@todo %The lack of a TE header or an empty TE header means only "chunked" %(with no trailers) or no transfer-encoding is acceptable. (RFC7230 4.3) % %ignore_te_if_not_in_connection_header(Config) -> %The TE header must be listed in the connection header field, %or must be ignored otherwise. % %@todo %Trailer headers must be listed in the trailer header field value. (RFC7230 4.4) % %@todo %When defined, the trailer header must also be listed in the connection header. (RFC7230 4.4) % %:: Upgrade % %``` %Upgrade = 1#protocol % %protocol = protocol-name ["/" protocol-version] %protocol-name = token %protocol-version = token %``` % %The upgrade header contains the list of protocols the %client wishes to upgrade to, in order of preference. (RFC7230 6.7) % %upgrade_safely_ignored(Config) -> %The upgrade header can be safely ignored. (RFC7230 6.7) % %upgrade_must_be_in_connection_header(Config) -> %The upgrade header must be listed under the connection header, %or must be ignored otherwise. (RFC7230 6.7) % %@todo %A server accepting an upgrade request must send a 101 status %code with a upgrade header listing the protocol(s) it upgrades %to, in layer-ascending order. In addition the upgrade header %must be listed in the connection header. (RFC7230 6.7) % %%A server must not switch to a protocol not listed in the %%request's upgrade header. (RFC7230 6.7) % %@todo %A server that sends a 426 status code must include a upgrade %header listing acceptable protocols in order of preference. (RFC7230 6.7) % %@todo %A server can send a upgrade header to any response to advertise %its support for other protocols listed in order of preference. (RFC7230 6.7) % %@todo %Immediately after a server responds with a 101 status code %it must respond to the original request using the new protocol. (RFC7230 6.7) % %@todo %%A server must not switch protocols unless the original message's %%semantics can be honored by the new protocol. OPTIONS requests %%can be honored by any protocol. (RFC7230 6.7) % %http10_ignore_upgrade_header(Config) -> %A server must ignore an upgrade header received by an HTTP/1.0 %request. (RFC7230 6.7) % %expect_then_upgrade(Config) -> %A server receiving both an upgrade header and an expect header %containing "100-continue" must send a 100 response before the %101 response. (RFC7230 6.7) % %The upgrade header field cannot be used for switching the %connection protocol (e.g. TCP) or switching connections. (RFC7230 6.7) % %%% Compatibility. % %@todo %A server can choose to be non-conformant to the specifications %for the sake of compatibility. Such behavior can be enabled %through configuration and/or software identification. (RFC7230 2.5)