http: Support chunked request bodies

This is a temporary support for chunked request bodies by converting
to Content-Length. This allows for processing of such requests until
a more permanent solution is developed.

A new configuration option "chunked_transform" has been added to enable
this feature. The option can be set as follows:
  {
    "settings": {
      "chunked_transform": true
    }
  }
By default, this option is set to false, which retains the current
behaviour of rejecting chunked requests with a '411 Length Required'
status code.

Please note that this is an experimental implementation.

Reviewed-by: Andrew Clayton <a.clayton@nginx.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/src/nxt_router.c b/src/nxt_router.c
index 48870d20..43209451 100644
--- a/src/nxt_router.c
+++ b/src/nxt_router.c
@@ -1575,6 +1575,12 @@ static nxt_conf_map_t  nxt_router_http_conf[] = {
         NXT_CONF_MAP_INT8,
         offsetof(nxt_socket_conf_t, server_version),
     },
+
+    {
+        nxt_string("chunked_transform"),
+        NXT_CONF_MAP_INT8,
+        offsetof(nxt_socket_conf_t, chunked_transform),
+    },
 };
 
 
@@ -1994,6 +2000,7 @@ nxt_router_conf_create(nxt_task_t *task, nxt_router_temp_conf_t *tmcf,
             skcf->proxy_read_timeout = 30 * 1000;
 
             skcf->server_version = 1;
+            skcf->chunked_transform = 0;
 
             skcf->websocket_conf.max_frame_size = 1024 * 1024;
             skcf->websocket_conf.read_timeout = 60 * 1000;