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#include <uwsgi.h>
#if defined(UWSGI_ROUTING)
/*
transfer-encoding is added to the headers
*/
static int transform_chunked(struct wsgi_request *wsgi_req, struct uwsgi_transformation *ut) {
struct uwsgi_buffer *ub = ut->chunk;
if (ut->is_final) {
if (uwsgi_buffer_append(ub, "0\r\n\r\n", 5)) return -1;
return 0;
}
if (ut->round == 1) {
// do not check for errors !!!
uwsgi_response_add_header(wsgi_req, "Transfer-Encoding", 17, "chunked", 7);
}
if (ub->pos > 0) {
if (uwsgi_buffer_insert_chunked(ub, 0, ub->pos)) return -1;
if (uwsgi_buffer_append(ub, "\r\n", 2)) return -1;
}
return 0;
}
static int uwsgi_routing_func_chunked(struct wsgi_request *wsgi_req, struct uwsgi_route *ur) {
struct uwsgi_transformation *ut = uwsgi_add_transformation(wsgi_req, transform_chunked, NULL);
ut->can_stream = 1;
// add a "final" transformation to add the trailing chunk
ut = uwsgi_add_transformation(wsgi_req, transform_chunked, NULL);
ut->is_final = 1;
return UWSGI_ROUTE_NEXT;
}
static int uwsgi_router_chunked(struct uwsgi_route *ur, char *args) {
ur->func = uwsgi_routing_func_chunked;
return 0;
}
static void router_chunked_register(void) {
uwsgi_register_router("chunked", uwsgi_router_chunked);
}
struct uwsgi_plugin transformation_chunked_plugin = {
.name = "transformation_chunked",
.on_load = router_chunked_register,
};
#else
struct uwsgi_plugin transformation_chunked_plugin = {
.name = "transformation_chunked",
};
#endif
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