diff options
| -rw-r--r-- | src/cow_http_hd.erl | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/src/cow_http_hd.erl b/src/cow_http_hd.erl index 8e258f9..4207b19 100644 --- a/src/cow_http_hd.erl +++ b/src/cow_http_hd.erl @@ -116,6 +116,7 @@ -export([access_control_allow_headers/1]). -export([access_control_allow_methods/1]). -export([access_control_allow_origin/1]). +-export([access_control_expose_headers/1]). -type etag() :: {weak | strong, binary()}. -export_type([etag/0]). @@ -3315,6 +3316,34 @@ horse_access_control_allow_origin() -> ). -endif. +%% @doc Build the Access-Control-Expose-Headers header. + +-spec access_control_expose_headers([binary()]) -> iodata(). +access_control_expose_headers(Headers) -> + join_token_list(nonempty(Headers)). + +-ifdef(TEST). +access_control_expose_headers_test_() -> + Tests = [ + {[<<"accept">>], <<"accept">>}, + {[<<"accept">>, <<"authorization">>, <<"content-type">>], <<"accept, authorization, content-type">>} + ], + [{lists:flatten(io_lib:format("~p", [V])), + fun() -> R = iolist_to_binary(access_control_expose_headers(V)) end} || {V, R} <- Tests]. + +access_control_expose_headers_error_test_() -> + Tests = [ + [] + ], + [{lists:flatten(io_lib:format("~p", [V])), + fun() -> {'EXIT', _} = (catch access_control_expose_headers(V)) end} || V <- Tests]. + +horse_access_control_expose_headers() -> + horse:repeat(200000, + access_control_expose_headers([<<"accept">>, <<"authorization">>, <<"content-type">>]) + ). +-endif. + %% Internal. %% Only return if the list is not empty. |