on otp-21+ use uri_string to parse uri

src/elli_http.erl

@@ -692,6 +692,20 @@ content_length(Headers, Body)->
 %% PATH HELPERS
 %%
 
+-ifdef(OTP_RELEASE).
+parse_path({abs_path, FullPath}) ->
+    URIMap = uri_string:parse(FullPath),
+    Host = maps:get(host, URIMap, undefined),
+    Scheme = maps:get(scheme, URIMap, undefined),
+    Path = maps:get(path, URIMap, <<>>),
+    Query = maps:get(query, URIMap, <<>>),
+    Port = maps:get(port, URIMap, case Scheme of http -> 80; https -> 443; _ -> undefined end),
+    {ok, {Scheme, Host, Port}, {Path, split_path(Path), uri_string:dissect_query(Query)}};
+parse_path({absoluteURI, Scheme, Host, Port, Path}) ->
+    setelement(2, parse_path({abs_path, Path}), {Scheme, Host, Port});
+parse_path(_) ->
+    {error, unsupported_uri}.
+-else.
 parse_path({abs_path, FullPath}) ->
     Parsed = case binary:split(FullPath, [<<"?">>]) of
                  [URL]       -> {FullPath, split_path(URL), []};
@@ -702,6 +716,7 @@ parse_path({absoluteURI, Scheme, Host, Port, Path}) ->
     setelement(2, parse_path({abs_path, Path}), {Scheme, Host, Port});
 parse_path(_) ->
     {error, unsupported_uri}.
+-endif.
 
 split_path(Path) ->
     [P || P <- binary:split(Path, [<<"/">>], [global]),