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https://github.com/ninenines/cowboy.git
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Add support for range requests (RFC7233) in cowboy_rest
This is currently undocumented but is planned to be documented in the next version.
This commit is contained in:
Loïc Hoguin
parent
bdd324ec01
commit
29043aa7b4
9 changed files with 745 additions and 9 deletions
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@ -47,7 +47,11 @@ init_dispatch(_) ->
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charset_in_content_types_provided_implicit_h, []},
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{"/charset_in_content_types_provided_implicit_no_callback",
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charset_in_content_types_provided_implicit_no_callback_h, []},
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{"/if_range", if_range_h, []},
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{"/provide_callback_missing", provide_callback_missing_h, []},
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{"/provide_range_callback", provide_range_callback_h, []},
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{"/range_satisfiable", range_satisfiable_h, []},
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{"/ranges_provided", ranges_provided_h, []},
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{"/rate_limited", rate_limited_h, []},
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{"/stop_handler", stop_handler_h, []},
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{"/switch_handler", switch_handler_h, run},
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@ -282,6 +286,110 @@ charsets_provided_empty_noheader(Config) ->
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{response, _, 406, _} = gun:await(ConnPid, Ref),
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ok.
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if_range_etag_equal(Config) ->
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doc("When the if-range header matches, a 206 partial content "
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"response is expected for an otherwise valid range request. (RFC7233 3.2)"),
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ConnPid = gun_open(Config),
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Ref = gun:get(ConnPid, "/if_range", [
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{<<"accept-encoding">>, <<"gzip">>},
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{<<"range">>, <<"bytes=0-">>},
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{<<"if-range">>, <<"\"strong-and-match\"">>}
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]),
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{response, nofin, 206, Headers} = gun:await(ConnPid, Ref),
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{_, <<"bytes">>} = lists:keyfind(<<"accept-ranges">>, 1, Headers),
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{_, <<"bytes 0-19/20">>} = lists:keyfind(<<"content-range">>, 1, Headers),
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ok.
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if_range_etag_not_equal(Config) ->
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doc("When the if-range header does not match, the range header "
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"must be ignored and a 200 OK response is expected for "
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"an otherwise valid range request. (RFC7233 3.2)"),
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ConnPid = gun_open(Config),
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Ref = gun:get(ConnPid, "/if_range", [
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{<<"accept-encoding">>, <<"gzip">>},
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{<<"range">>, <<"bytes=0-">>},
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{<<"if-range">>, <<"\"strong-but-no-match\"">>}
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]),
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{response, nofin, 200, Headers} = gun:await(ConnPid, Ref),
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{_, <<"bytes">>} = lists:keyfind(<<"accept-ranges">>, 1, Headers),
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false = lists:keyfind(<<"content-range">>, 1, Headers),
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ok.
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if_range_ignored_when_no_range_header(Config) ->
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doc("When there is no range header the if-range header is ignored "
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"and a 200 OK response is expected (RFC7233 3.2)"),
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ConnPid = gun_open(Config),
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Ref = gun:get(ConnPid, "/if_range", [
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{<<"accept-encoding">>, <<"gzip">>},
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{<<"if-range">>, <<"\"strong-and-match\"">>}
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]),
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{response, nofin, 200, Headers} = gun:await(ConnPid, Ref),
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{_, <<"bytes">>} = lists:keyfind(<<"accept-ranges">>, 1, Headers),
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false = lists:keyfind(<<"content-range">>, 1, Headers),
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ok.
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if_range_ignored_when_ranges_provided_missing(Config) ->
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doc("When the resource does not support range requests "
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"the range and if-range headers must be ignored"
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"and a 200 OK response is expected (RFC7233 3.2)"),
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ConnPid = gun_open(Config),
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Ref = gun:get(ConnPid, "/if_range?missing-ranges_provided", [
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{<<"accept-encoding">>, <<"gzip">>},
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{<<"range">>, <<"bytes=0-">>},
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{<<"if-range">>, <<"\"strong-and-match\"">>}
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]),
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{response, nofin, 200, Headers} = gun:await(ConnPid, Ref),
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false = lists:keyfind(<<"accept-ranges">>, 1, Headers),
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false = lists:keyfind(<<"content-range">>, 1, Headers),
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ok.
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if_range_ignored_when_ranges_provided_empty(Config) ->
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doc("When the resource does not support range requests "
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"the range and if-range headers must be ignored"
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"and a 200 OK response is expected (RFC7233 3.2)"),
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ConnPid = gun_open(Config),
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Ref = gun:get(ConnPid, "/if_range?empty-ranges_provided", [
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{<<"accept-encoding">>, <<"gzip">>},
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{<<"range">>, <<"bytes=0-">>},
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{<<"if-range">>, <<"\"strong-and-match\"">>}
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]),
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{response, nofin, 200, Headers} = gun:await(ConnPid, Ref),
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{_, <<"none">>} = lists:keyfind(<<"accept-ranges">>, 1, Headers),
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false = lists:keyfind(<<"content-range">>, 1, Headers),
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ok.
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if_range_weak_etag_not_equal(Config) ->
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doc("The if-range header must not match weak etags; the range header "
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"must be ignored and a 200 OK response is expected for "
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"an otherwise valid range request. (RFC7233 3.2)"),
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ConnPid = gun_open(Config),
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Ref = gun:get(ConnPid, "/if_range?weak-etag", [
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{<<"accept-encoding">>, <<"gzip">>},
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{<<"range">>, <<"bytes=0-">>},
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{<<"if-range">>, <<"W/\"weak-no-match\"">>}
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]),
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{response, nofin, 200, Headers} = gun:await(ConnPid, Ref),
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{_, <<"bytes">>} = lists:keyfind(<<"accept-ranges">>, 1, Headers),
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false = lists:keyfind(<<"content-range">>, 1, Headers),
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ok.
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if_range_date_not_equal(Config) ->
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doc("The if-range header must not match weak dates. Cowboy "
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"currently has no way of knowing whether a resource was "
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"updated twice within the same second. The range header "
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"must be ignored and a 200 OK response is expected for "
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"an otherwise valid range request. (RFC7233 3.2)"),
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ConnPid = gun_open(Config),
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Ref = gun:get(ConnPid, "/if_range", [
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{<<"accept-encoding">>, <<"gzip">>},
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{<<"range">>, <<"bytes=0-">>},
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{<<"if-range">>, <<"Fri, 22 Feb 2222 11:11:11 GMT">>}
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]),
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{response, nofin, 200, Headers} = gun:await(ConnPid, Ref),
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{_, <<"bytes">>} = lists:keyfind(<<"accept-ranges">>, 1, Headers),
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false = lists:keyfind(<<"content-range">>, 1, Headers),
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ok.
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provide_callback_missing(Config) ->
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doc("A 500 response must be sent when the ProvideCallback can't be called."),
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ConnPid = gun_open(Config),
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@ -289,9 +397,228 @@ provide_callback_missing(Config) ->
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{response, fin, 500, _} = gun:await(ConnPid, Ref),
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ok.
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provide_range_callback(Config) ->
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doc("A successful request for a single range results in a "
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"206 partial content response with content-range set. (RFC7233 4.1, RFC7233 4.2)"),
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ConnPid = gun_open(Config),
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Ref = gun:get(ConnPid, "/provide_range_callback", [
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{<<"accept-encoding">>, <<"gzip">>},
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{<<"range">>, <<"bytes=0-">>}
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]),
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{response, nofin, 206, Headers} = gun:await(ConnPid, Ref),
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{_, <<"bytes">>} = lists:keyfind(<<"accept-ranges">>, 1, Headers),
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{_, <<"bytes 0-19/20">>} = lists:keyfind(<<"content-range">>, 1, Headers),
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{_, <<"text/plain">>} = lists:keyfind(<<"content-type">>, 1, Headers),
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{ok, <<"This is ranged REST!">>} = gun:await_body(ConnPid, Ref),
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ok.
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provide_range_callback_multipart(Config) ->
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doc("A successful request for multiple ranges results in a "
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"206 partial content response using the multipart/byteranges "
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"content-type and the content-range not being set. The real "
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"content-type and content-range of the parts can be found in "
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"the multipart headers. (RFC7233 4.1, RFC7233 A)"),
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ConnPid = gun_open(Config),
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Ref = gun:get(ConnPid, "/provide_range_callback", [
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{<<"accept-encoding">>, <<"gzip">>},
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%% This range selects everything except the space characters.
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{<<"range">>, <<"bytes=0-3, 5-6, 8-13, 15-">>}
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]),
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{response, nofin, 206, Headers} = gun:await(ConnPid, Ref),
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{_, <<"bytes">>} = lists:keyfind(<<"accept-ranges">>, 1, Headers),
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false = lists:keyfind(<<"content-range">>, 1, Headers),
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{_, <<"multipart/byteranges; boundary=", Boundary/bits>>}
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= lists:keyfind(<<"content-type">>, 1, Headers),
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{ok, Body0} = gun:await_body(ConnPid, Ref),
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Body = do_decode(Headers, Body0),
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do_provide_range_callback_multipart_body(Body, Boundary, [], <<>>).
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do_provide_range_callback_multipart_body(Rest, Boundary, ContentRangesAcc, BodyAcc) ->
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case cow_multipart:parse_headers(Rest, Boundary) of
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{ok, Headers, Rest1} ->
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{_, ContentRange0} = lists:keyfind(<<"content-range">>, 1, Headers),
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ContentRange = cow_http_hd:parse_content_range(ContentRange0),
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{_, <<"text/plain">>} = lists:keyfind(<<"content-type">>, 1, Headers),
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case cow_multipart:parse_body(Rest1, Boundary) of
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{done, Body} ->
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do_provide_range_callback_multipart_body(<<>>, Boundary,
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[ContentRange|ContentRangesAcc],
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<<BodyAcc/binary, Body/binary>>);
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{done, Body, Rest2} ->
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do_provide_range_callback_multipart_body(Rest2, Boundary,
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[ContentRange|ContentRangesAcc],
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<<BodyAcc/binary, Body/binary>>)
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end;
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{done, <<>>} ->
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[
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{bytes, 0, 3, 20},
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{bytes, 5, 6, 20},
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{bytes, 8, 13, 20},
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{bytes, 15, 19, 20}
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] = lists:reverse(ContentRangesAcc),
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<<"ThisisrangedREST!">> = BodyAcc,
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ok
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end.
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provide_range_callback_metadata(Config) ->
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doc("A successful request for a single range results in a "
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"206 partial content response with the same headers that "
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"a normal 200 OK response would, like vary or etag. (RFC7233 4.1)"),
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ConnPid = gun_open(Config),
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Ref = gun:get(ConnPid, "/provide_range_callback", [
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{<<"accept-encoding">>, <<"gzip">>},
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{<<"range">>, <<"bytes=0-">>}
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]),
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{response, nofin, 206, Headers} = gun:await(ConnPid, Ref),
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{_, _} = lists:keyfind(<<"date">>, 1, Headers),
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{_, _} = lists:keyfind(<<"etag">>, 1, Headers),
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{_, _} = lists:keyfind(<<"expires">>, 1, Headers),
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{_, _} = lists:keyfind(<<"last-modified">>, 1, Headers),
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{_, _} = lists:keyfind(<<"vary">>, 1, Headers),
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%% Also cache-control and content-location but we don't send those.
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ok.
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provide_range_callback_missing(Config) ->
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doc("A 500 response must be sent when the ProvideRangeCallback can't be called."),
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ConnPid = gun_open(Config),
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Ref = gun:get(ConnPid, "/provide_range_callback?missing", [
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{<<"accept-encoding">>, <<"gzip">>},
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{<<"range">>, <<"bytes=0-">>}
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]),
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{response, fin, 500, _} = gun:await(ConnPid, Ref),
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ok.
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range_ignore_unknown_unit(Config) ->
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doc("The range header must be ignored when the range unit "
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"is not found in ranges_provided. (RFC7233 3.1)"),
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ConnPid = gun_open(Config),
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Ref = gun:get(ConnPid, "/if_range", [
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{<<"accept-encoding">>, <<"gzip">>},
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{<<"range">>, <<"chapters=1-">>}
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]),
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{response, nofin, 200, Headers} = gun:await(ConnPid, Ref),
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{_, <<"bytes">>} = lists:keyfind(<<"accept-ranges">>, 1, Headers),
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false = lists:keyfind(<<"content-range">>, 1, Headers),
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ok.
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range_ignore_when_not_modified(Config) ->
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doc("The range header must be ignored when a conditional "
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"GET results in a 304 not modified response. (RFC7233 3.1)"),
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ConnPid = gun_open(Config),
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Ref = gun:get(ConnPid, "/if_range", [
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{<<"accept-encoding">>, <<"gzip">>},
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{<<"range">>, <<"bytes=0-">>},
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{<<"if-none-match">>, <<"\"strong-and-match\"">>}
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]),
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{response, fin, 304, Headers} = gun:await(ConnPid, Ref),
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{_, <<"bytes">>} = lists:keyfind(<<"accept-ranges">>, 1, Headers),
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false = lists:keyfind(<<"content-range">>, 1, Headers),
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ok.
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range_satisfiable(Config) ->
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doc("When the range_satisfiable callback returns true "
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"a 206 partial content response is expected for "
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"an otherwise valid range request. (RFC7233 4.1)"),
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ConnPid = gun_open(Config),
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Ref = gun:get(ConnPid, "/range_satisfiable?true", [
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{<<"accept-encoding">>, <<"gzip">>},
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{<<"range">>, <<"bytes=0-">>}
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]),
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{response, nofin, 206, Headers} = gun:await(ConnPid, Ref),
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{_, <<"bytes">>} = lists:keyfind(<<"accept-ranges">>, 1, Headers),
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{_, <<"bytes 0-19/20">>} = lists:keyfind(<<"content-range">>, 1, Headers),
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ok.
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range_not_satisfiable(Config) ->
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doc("When the range_satisfiable callback returns false "
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"a 416 range not satisfiable response is expected for "
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"an otherwise valid range request. (RFC7233 4.4)"),
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ConnPid = gun_open(Config),
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Ref = gun:get(ConnPid, "/range_satisfiable?false", [
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{<<"accept-encoding">>, <<"gzip">>},
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{<<"range">>, <<"bytes=0-">>}
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]),
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{response, fin, 416, Headers} = gun:await(ConnPid, Ref),
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{_, <<"bytes">>} = lists:keyfind(<<"accept-ranges">>, 1, Headers),
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false = lists:keyfind(<<"content-range">>, 1, Headers),
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ok.
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range_not_satisfiable_int(Config) ->
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doc("When the range_satisfiable callback returns false "
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"a 416 range not satisfiable response is expected for "
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"an otherwise valid range request. If an integer is "
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"provided it is used to construct the content-range "
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"header. (RFC7233 4.2, RFC7233 4.4)"),
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ConnPid = gun_open(Config),
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Ref = gun:get(ConnPid, "/range_satisfiable?false-int", [
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{<<"accept-encoding">>, <<"gzip">>},
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{<<"range">>, <<"bytes=0-">>}
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]),
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{response, fin, 416, Headers} = gun:await(ConnPid, Ref),
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{_, <<"bytes">>} = lists:keyfind(<<"accept-ranges">>, 1, Headers),
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{_, <<"bytes */123">>} = lists:keyfind(<<"content-range">>, 1, Headers),
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ok.
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range_not_satisfiable_bin(Config) ->
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doc("When the range_satisfiable callback returns false "
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"a 416 range not satisfiable response is expected for "
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"an otherwise valid range request. If a binary is "
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"provided it is used to construct the content-range "
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"header. (RFC7233 4.2, RFC7233 4.4)"),
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ConnPid = gun_open(Config),
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Ref = gun:get(ConnPid, "/range_satisfiable?false-bin", [
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{<<"accept-encoding">>, <<"gzip">>},
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{<<"range">>, <<"bytes=0-">>}
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]),
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{response, fin, 416, Headers} = gun:await(ConnPid, Ref),
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{_, <<"bytes">>} = lists:keyfind(<<"accept-ranges">>, 1, Headers),
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{_, <<"bytes */456">>} = lists:keyfind(<<"content-range">>, 1, Headers),
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ok.
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range_satisfiable_missing(Config) ->
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doc("When the range_satisfiable callback is missing "
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"a 206 partial content response is expected for "
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"an otherwise valid range request. (RFC7233 4.1)"),
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ConnPid = gun_open(Config),
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Ref = gun:get(ConnPid, "/range_satisfiable?missing", [
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{<<"accept-encoding">>, <<"gzip">>},
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{<<"range">>, <<"bytes=0-">>}
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]),
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{response, _, 206, Headers} = gun:await(ConnPid, Ref),
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{_, <<"bytes">>} = lists:keyfind(<<"accept-ranges">>, 1, Headers),
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{_, <<"bytes ", _/bits>>} = lists:keyfind(<<"content-range">>, 1, Headers),
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ok.
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ranges_provided_accept_ranges(Config) ->
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doc("When the ranges_provided callback exists the accept-ranges header "
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"is sent in the response. (RFC7233 2.3)"),
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ConnPid = gun_open(Config),
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Ref = gun:get(ConnPid, "/ranges_provided?list", [{<<"accept-encoding">>, <<"gzip">>}]),
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{response, _, 200, Headers} = gun:await(ConnPid, Ref),
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{_, <<"bytes, pages, chapters">>} = lists:keyfind(<<"accept-ranges">>, 1, Headers),
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ok.
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ranges_provided_empty_accept_ranges_none(Config) ->
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doc("When the ranges_provided callback exists but returns an empty list "
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"the accept-ranges header is sent in the response with the value none. (RFC7233 2.3)"),
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ConnPid = gun_open(Config),
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Ref = gun:get(ConnPid, "/ranges_provided?none", [{<<"accept-encoding">>, <<"gzip">>}]),
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{response, _, 200, Headers} = gun:await(ConnPid, Ref),
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{_, <<"none">>} = lists:keyfind(<<"accept-ranges">>, 1, Headers),
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ok.
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ranges_provided_missing_no_accept_ranges(Config) ->
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doc("When the ranges_provided callback does not exist "
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"the accept-ranges header is not sent in the response."),
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ConnPid = gun_open(Config),
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Ref = gun:get(ConnPid, "/ranges_provided?missing", [{<<"accept-encoding">>, <<"gzip">>}]),
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{response, _, 200, Headers} = gun:await(ConnPid, Ref),
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false = lists:keyfind(<<"accept-ranges">>, 1, Headers),
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ok.
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rate_limited(Config) ->
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doc("A 429 response must be sent when the rate_limited callback returns true. "
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"The retry-after header is specified as an integer."),
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"The retry-after header is specified as an integer. (RFC6585 4, RFC7231 7.1.3)"),
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ConnPid = gun_open(Config),
|
||||
Ref = gun:get(ConnPid, "/rate_limited?true", [{<<"accept-encoding">>, <<"gzip">>}]),
|
||||
{response, fin, 429, Headers} = gun:await(ConnPid, Ref),
|
||||
|
|
@ -300,7 +627,7 @@ rate_limited(Config) ->
|
|||
|
||||
rate_limited_datetime(Config) ->
|
||||
doc("A 429 response must be sent when the rate_limited callback returns true. "
|
||||
"The retry-after header is specified as a date/time tuple."),
|
||||
"The retry-after header is specified as a date/time tuple. (RFC6585 4, RFC7231 7.1.3)"),
|
||||
ConnPid = gun_open(Config),
|
||||
Ref = gun:get(ConnPid, "/rate_limited?true-date", [{<<"accept-encoding">>, <<"gzip">>}]),
|
||||
{response, fin, 429, Headers} = gun:await(ConnPid, Ref),
|
||||
|
|
@ -368,6 +695,12 @@ stop_handler_options(Config) ->
|
|||
stop_handler_previously_existed(Config) ->
|
||||
do_no_body_stop_handler(Config, get, ?FUNCTION_NAME).
|
||||
|
||||
stop_handler_range_satisfiable(Config) ->
|
||||
do_no_body_stop_handler(Config, get, ?FUNCTION_NAME).
|
||||
|
||||
stop_handler_ranges_provided(Config) ->
|
||||
do_no_body_stop_handler(Config, get, ?FUNCTION_NAME).
|
||||
|
||||
stop_handler_rate_limited(Config) ->
|
||||
do_no_body_stop_handler(Config, get, ?FUNCTION_NAME).
|
||||
|
||||
|
|
@ -392,12 +725,17 @@ stop_handler_accept(Config) ->
|
|||
stop_handler_provide(Config) ->
|
||||
do_no_body_stop_handler(Config, get, ?FUNCTION_NAME).
|
||||
|
||||
stop_handler_provide_range(Config) ->
|
||||
do_no_body_stop_handler(Config, get, ?FUNCTION_NAME).
|
||||
|
||||
do_no_body_stop_handler(Config, Method, StateName0) ->
|
||||
doc("Send a response manually and stop the REST handler."),
|
||||
ConnPid = gun_open(Config),
|
||||
"stop_handler_" ++ StateName = atom_to_list(StateName0),
|
||||
Ref = gun:Method(ConnPid, "/stop_handler?" ++ StateName,
|
||||
[{<<"accept-encoding">>, <<"gzip">>}]),
|
||||
Ref = gun:Method(ConnPid, "/stop_handler?" ++ StateName, [
|
||||
{<<"accept-encoding">>, <<"gzip">>},
|
||||
{<<"range">>, <<"bytes=0-">>}
|
||||
]),
|
||||
{response, fin, 248, _} = gun:await(ConnPid, Ref),
|
||||
ok.
|
||||
|
||||
|
|
@ -466,6 +804,12 @@ switch_handler_options(Config) ->
|
|||
switch_handler_previously_existed(Config) ->
|
||||
do_no_body_switch_handler(Config, get, ?FUNCTION_NAME).
|
||||
|
||||
switch_handler_range_satisfiable(Config) ->
|
||||
do_no_body_switch_handler(Config, get, ?FUNCTION_NAME).
|
||||
|
||||
switch_handler_ranges_provided(Config) ->
|
||||
do_no_body_switch_handler(Config, get, ?FUNCTION_NAME).
|
||||
|
||||
switch_handler_rate_limited(Config) ->
|
||||
do_no_body_switch_handler(Config, get, ?FUNCTION_NAME).
|
||||
|
||||
|
|
@ -490,6 +834,9 @@ switch_handler_accept(Config) ->
|
|||
switch_handler_provide(Config) ->
|
||||
do_no_body_switch_handler(Config, get, ?FUNCTION_NAME).
|
||||
|
||||
switch_handler_provide_range(Config) ->
|
||||
do_no_body_switch_handler(Config, get, ?FUNCTION_NAME).
|
||||
|
||||
do_no_body_switch_handler(Config, Method, StateName0) ->
|
||||
doc("Switch REST to loop handler for streaming the response body, "
|
||||
"with and without options."),
|
||||
|
|
@ -499,7 +846,10 @@ do_no_body_switch_handler(Config, Method, StateName0) ->
|
|||
|
||||
do_no_body_switch_handler1(Config, Method, Path) ->
|
||||
ConnPid = gun_open(Config),
|
||||
Ref = gun:Method(ConnPid, Path, [{<<"accept-encoding">>, <<"gzip">>}]),
|
||||
Ref = gun:Method(ConnPid, Path, [
|
||||
{<<"accept-encoding">>, <<"gzip">>},
|
||||
{<<"range">>, <<"bytes=0-">>}
|
||||
]),
|
||||
{response, nofin, 200, Headers} = gun:await(ConnPid, Ref),
|
||||
{ok, Body} = gun:await_body(ConnPid, Ref),
|
||||
<<"Hello\nstreamed\nworld!\n">> = do_decode(Headers, Body),
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue