added transformation_gzip

core/utils.c

@@ -589,6 +589,8 @@ void uwsgi_close_request(struct wsgi_request *wsgi_req) {
 		// send the body only if transformations are successfull
 		struct uwsgi_buffer *ub = wsgi_req->response_buffer;
 		if (uwsgi_apply_transformations(wsgi_req) == 0) {
+			// teh response_buffer could be changed
+			ub = wsgi_req->response_buffer;
 			// force true write
 			wsgi_req->response_buffer = NULL;
 			uwsgi_response_write_body_do(wsgi_req, ub->buf, ub->pos);

plugins/transformation_gzip/gzip.c

@@ -0,0 +1,30 @@
+#include <uwsgi.h>
+
+static int transform_gzip(struct wsgi_request *wsgi_req, struct uwsgi_buffer *ub, struct uwsgi_buffer **new) {
+	struct uwsgi_buffer *gzipped = uwsgi_gzip(ub->buf, ub->pos);
+	if (!gzipped) {
+		return -1;
+	}
+	// use this new buffer
+	*new = gzipped;	
+	return 0;
+}
+
+static int uwsgi_routing_func_gzip(struct wsgi_request *wsgi_req, struct uwsgi_route *ur) {
+	uwsgi_add_transformation(wsgi_req, transform_gzip);
+	return UWSGI_ROUTE_NEXT;
+}
+
+static int uwsgi_router_gzip(struct uwsgi_route *ur, char *args) {
+	ur->func = uwsgi_routing_func_gzip;
+	return 0;
+}
+
+static void router_gzip_register(void) {
+	uwsgi_register_router("gzip", uwsgi_router_gzip);
+}
+
+struct uwsgi_plugin transformation_gzip_plugin = {
+	.name = "transformation_gzip",
+	.on_load = router_gzip_register,
+};

plugins/transformation_gzip/uwsgiplugin.py

@@ -0,0 +1,6 @@
+NAME='transformation_gzip'
+
+CFLAGS = []
+LDFLAGS = []
+LIBS = []
+GCC_LIST = ['gzip']