From: Dmitry Volyntsev <xeioex@nginx.com>
Date: Tue, 7 Jun 2022 06:27:11 +0000 (-0700)
Subject: HTTP: fixed r.headersOut special getters when value is absent.
X-Git-Tag: 0.7.5~14
X-Git-Url: http://www.kaiwu.me/postgresql/commit/static/gitweb.js?a=commitdiff_plain;h=1186657c662a5d92d61a4c10486e98cdf5a0724e;p=njs.git

HTTP: fixed r.headersOut special getters when value is absent.

Previously, when Content-Encoding or Content-Length header was absent,
an exception was thrown erroneously.

This closes #537 issue on Github.
---

diff --git a/nginx/ngx_http_js_module.c b/nginx/ngx_http_js_module.c
index 206d5a73..cc3ece3d 100644
--- a/nginx/ngx_http_js_module.c
+++ b/nginx/ngx_http_js_module.c
@@ -1900,7 +1900,7 @@ ngx_http_js_content_encoding(njs_vm_t *vm, ngx_http_request_t *r,
     ngx_table_elt_t  *h;
 
     rc = ngx_http_js_header_out_special(vm, r, v, setval, retval, &h);
-    if (rc != NJS_OK) {
+    if (rc == NJS_ERROR) {
         return NJS_ERROR;
     }
 
@@ -1940,7 +1940,7 @@ ngx_http_js_content_length(njs_vm_t *vm, ngx_http_request_t *r,
     }
 
     rc = ngx_http_js_header_out_special(vm, r, v, setval, retval, &h);
-    if (rc != NJS_OK) {
+    if (rc == NJS_ERROR) {
         return NJS_ERROR;
     }
 
@@ -3686,7 +3686,7 @@ ngx_http_js_content_encoding(njs_vm_t *vm, ngx_http_request_t *r,
     ngx_table_elt_t  *h;
 
     rc = ngx_http_js_header_out_special(vm, r, v, setval, retval, &h);
-    if (rc != NJS_OK) {
+    if (rc == NJS_ERROR) {
         return NJS_ERROR;
     }
 
@@ -3726,7 +3726,7 @@ ngx_http_js_content_length(njs_vm_t *vm, ngx_http_request_t *r,
     }
 
     rc = ngx_http_js_header_out_special(vm, r, v, setval, retval, &h);
-    if (rc != NJS_OK) {
+    if (rc == NJS_ERROR) {
         return NJS_ERROR;
     }