From: Dmitry Volyntsev <xeioex@nginx.com>
Date: Tue, 12 Sep 2023 03:34:48 +0000 (-0700)
Subject: HTTP: avoid calling body filter when input chain is NULL.
X-Git-Tag: 0.8.1~2
X-Git-Url: http://www.kaiwu.me/postgresql/commit/static/gitweb.js?a=commitdiff_plain;h=606f5c0d43f357a99ca36225f9d07e33d15a2953;p=njs.git

HTTP: avoid calling body filter when input chain is NULL.

This solves the problem of erroneous exception thrown in
r.internalRedirect() after 05c7f0b31856 (0.8.0).
---

diff --git a/nginx/ngx_http_js_module.c b/nginx/ngx_http_js_module.c
index f8811617..6ba500e7 100644
--- a/nginx/ngx_http_js_module.c
+++ b/nginx/ngx_http_js_module.c
@@ -1129,7 +1129,7 @@ ngx_http_js_body_filter(ngx_http_request_t *r, ngx_chain_t *in)
 
     jlcf = ngx_http_get_module_loc_conf(r, ngx_http_js_module);
 
-    if (jlcf->body_filter.len == 0) {
+    if (jlcf->body_filter.len == 0 || in == NULL) {
         return ngx_http_next_body_filter(r, in);
     }