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added UseLibHeaders option to allow disabling of lib headers #532

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added UseLibHeaders option to allow disabling of lib headers #532

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24 changes: 18 additions & 6 deletions src/hackney_request.erl
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Original file line number Diff line number Diff line change
Expand Up @@ -33,11 +33,14 @@ perform(Client0, {Method0, Path, Headers0, Body0}) ->
#client{options=Options} = Client0,

%% basic & Cookies authorization handling
UseLibHeaders = proplists:get_value(lib_headers, Options),
Cookies = proplists:get_value(cookie, Options, []),
DefaultHeaders = case proplists:get_value(basic_auth, Options) of
undefined ->
DefaultHeaders = case {proplists:get_value(basic_auth, Options), UseLibHeaders} of
{_, none} ->
[];
{undefined, _} ->
maybe_add_cookies(Cookies, [{<<"User-Agent">>, default_ua()}]);
{User, Pwd} ->
{{User, Pwd}, _} ->
User1 = hackney_bstr:to_binary(User),
Pwd1 = hackney_bstr:to_binary(Pwd),
Credentials = base64:encode(<< User1/binary, ":", Pwd1/binary >>),
Expand All @@ -55,13 +58,13 @@ perform(Client0, {Method0, Path, Headers0, Body0}) ->
),

%% add host eventually
Headers2 = maybe_add_host(Headers1, Client0#client.netloc),
Headers2 = maybe_add_host(Headers1, Client0#client.netloc, UseLibHeaders),

%% get expect headers
Expect = expectation(Headers2),

%% build headers with the body.
{FinalHeaders, ReqType, Body, Client1} = case Body0 of
{Headers3, ReqType, Body, Client1} = case Body0 of
stream ->
{Headers2, ReqType0, stream, Client0};
stream_multipart ->
Expand All @@ -81,6 +84,13 @@ perform(Client0, {Method0, Path, Headers0, Body0}) ->
handle_body(Headers2, ReqType0, Body0, Client0)
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Here is the method you are bypassing when headers are disabled. Not sure what it does or what horrific things may happen to multipart streams if it isn't run. This you should definitely check 😈

end,

FinalHeaders = case UseLibHeaders of
none ->
Headers2;
_ ->
Headers3
end,

%% build final client record
Client = case ReqType of
normal ->
Expand Down Expand Up @@ -616,7 +626,9 @@ default_ua() ->
end,
<< "hackney/", Version/binary >>.

maybe_add_host(Headers0, Netloc) ->
maybe_add_host(Headers, Netloc, none) ->
Headers;
maybe_add_host(Headers0, Netloc, _) ->
{_, Headers1} = hackney_headers_new:store_new(<<"Host">>, Netloc, Headers0),
Headers1.

Expand Down