inets: fix suppport of HTTP headers with obs-fold

httpc should not fail when response contains (now deprecated)
multiline HTTP headers constructed with obs-folds. And as
RFC7230 specifies user agent should replace obs-folds with
spaces.

1 files changed, 15 insertions, 0 deletions

diff --git a/lib/inets/test/httpc_SUITE.erl b/lib/inets/test/httpc_SUITE.erl
index 5b40d08859..2ad00bdf76 100644
--- a/lib/inets/test/httpc_SUITE.erl
+++ b/lib/inets/test/httpc_SUITE.erl
@@ -105,6 +105,7 @@ only_simulated() ->
      internal_server_error,
      invalid_http,
      headers_dummy,
+     headers_with_obs_fold,
      empty_response_header,
      remote_socket_close,
      remote_socket_close_async,
@@ -893,6 +894,13 @@ headers_dummy(Config) when is_list(Config) ->
 
 %%-------------------------------------------------------------------------
 
+headers_with_obs_fold(Config) when is_list(Config) ->
+    Request = {url(group_name(Config), "/obs_folded_headers.html", Config), []},
+    {ok, {{_,200,_}, Headers, [_|_]}} = httpc:request(get, Request, [], []),
+    "a b" = proplists:get_value("folded", Headers).
+
+%%-------------------------------------------------------------------------
+
 invalid_headers(Config) ->
     Request  = {url(group_name(Config), "/dummy.html", Config), [{"cookie", undefined}]},
     {error, _} = httpc:request(get, Request, [], []).
@@ -1713,6 +1721,13 @@ handle_uri(_,"/dummy_headers.html",_,_,Socket,_) ->
     send(Socket, http_chunk:encode("obar</BODY></HTML>")),
     http_chunk:encode_last();
 
+handle_uri(_,"/obs_folded_headers.html",_,_,_,_) ->
+    "HTTP/1.1 200 ok\r\n"
+    "Content-Length:5\r\n"
+    "Folded: a\r\n"
+    " b\r\n\r\n"
+    "Hello";
+
 handle_uri(_,"/capital_transfer_encoding.html",_,_,Socket,_) ->
     Head =  "HTTP/1.1 200 ok\r\n" ++
 	"Transfer-Encoding:Chunked\r\n\r\n",