[header-override-650] implement header overriding in GetObject (fix #650)

src/api/s3/router.rs

@@ -125,6 +125,12 @@ pub enum Endpoint {
 		key: String,
 		part_number: Option<u64>,
 		version_id: Option<String>,
+		response_cache_control: Option<String>,
+		response_content_disposition: Option<String>,
+		response_content_encoding: Option<String>,
+		response_content_language: Option<String>,
+		response_content_type: Option<String>,
+		response_expires: Option<String>,
 	},
 	GetObjectAcl {
 		key: String,
@@ -358,7 +364,14 @@ impl Endpoint {
 			(query.keyword.take().unwrap_or_default(), key, query, None),
 			key: [
 				EMPTY if upload_id => ListParts (query::upload_id, opt_parse::max_parts, opt_parse::part_number_marker),
-				EMPTY => GetObject (query_opt::version_id, opt_parse::part_number),
+				EMPTY => GetObject (query_opt::version_id,
+									opt_parse::part_number,
+									query_opt::response_cache_control,
+									query_opt::response_content_disposition,
+									query_opt::response_content_encoding,
+									query_opt::response_content_language,
+									query_opt::response_content_type,
+									query_opt::response_expires),
 				ACL => GetObjectAcl (query_opt::version_id),
 				LEGAL_HOLD => GetObjectLegalHold (query_opt::version_id),
 				RETENTION => GetObjectRetention (query_opt::version_id),
@@ -671,6 +684,12 @@ generateQueryParameters! {
 		"partNumber" => part_number,
 		"part-number-marker" => part_number_marker,
 		"prefix" => prefix,
+		"response-cache-control" => response_cache_control,
+		"response-content-disposition" => response_content_disposition,
+		"response-content-encoding" => response_content_encoding,
+		"response-content-language" => response_content_language,
+		"response-content-type" => response_content_type,
+		"response-expires" => response_expires,
 		"select-type" => select_type,
 		"start-after" => start_after,
 		"uploadId" => upload_id,