# HG changeset patch
# User Igor Sysoev <igor@sysoev.ru>
# Date 1278064167 0
# Node ID 1f5841b1fcd783a0f44c598342c7e41917bea75e
# Parent  1d4c7aaed5d23a96c7509390c99fadbec4ba6d01
treat Set-Cookie as a header that forbids caching

diff --git a/src/http/ngx_http_upstream.c b/src/http/ngx_http_upstream.c
--- a/src/http/ngx_http_upstream.c
+++ b/src/http/ngx_http_upstream.c
@@ -72,6 +72,8 @@ static void ngx_http_upstream_finalize_r
 
 static ngx_int_t ngx_http_upstream_process_header_line(ngx_http_request_t *r,
     ngx_table_elt_t *h, ngx_uint_t offset);
+static ngx_int_t ngx_http_upstream_process_set_cookie(ngx_http_request_t *r,
+    ngx_table_elt_t *h, ngx_uint_t offset);
 static ngx_int_t
     ngx_http_upstream_process_cache_control(ngx_http_request_t *r,
     ngx_table_elt_t *h, ngx_uint_t offset);
@@ -189,7 +191,7 @@ ngx_http_upstream_header_t  ngx_http_ups
                  ngx_http_upstream_rewrite_refresh, 0, 0 },
 
     { ngx_string("Set-Cookie"),
-                 ngx_http_upstream_ignore_header_line, 0,
+                 ngx_http_upstream_process_set_cookie, 0,
                  ngx_http_upstream_copy_header_line, 0, 1 },
 
     { ngx_string("Content-Disposition"),
@@ -360,6 +362,7 @@ ngx_conf_bitmask_t  ngx_http_upstream_ig
     { ngx_string("X-Accel-Expires"), NGX_HTTP_UPSTREAM_IGN_XA_EXPIRES },
     { ngx_string("Expires"), NGX_HTTP_UPSTREAM_IGN_EXPIRES },
     { ngx_string("Cache-Control"), NGX_HTTP_UPSTREAM_IGN_CACHE_CONTROL },
+    { ngx_string("Set-Cookie"), NGX_HTTP_UPSTREAM_IGN_SET_COOKIE },
     { ngx_null_string, 0 }
 };
 
@@ -2994,6 +2997,24 @@ ngx_http_upstream_ignore_header_line(ngx
 
 
 static ngx_int_t
+ngx_http_upstream_process_set_cookie(ngx_http_request_t *r, ngx_table_elt_t *h,
+    ngx_uint_t offset)
+{
+#if (NGX_HTTP_CACHE)
+    ngx_http_upstream_t  *u;
+
+    u = r->upstream;
+
+    if (!(u->conf->ignore_headers & NGX_HTTP_UPSTREAM_IGN_SET_COOKIE)) {
+        u->cacheable = 0;
+    }
+#endif
+
+    return NGX_OK;
+}
+
+
+static ngx_int_t
 ngx_http_upstream_process_cache_control(ngx_http_request_t *r,
     ngx_table_elt_t *h, ngx_uint_t offset)
 {
diff --git a/src/http/ngx_http_upstream.h b/src/http/ngx_http_upstream.h
--- a/src/http/ngx_http_upstream.h
+++ b/src/http/ngx_http_upstream.h
@@ -43,6 +43,7 @@
 #define NGX_HTTP_UPSTREAM_IGN_XA_EXPIRES     0x00000004
 #define NGX_HTTP_UPSTREAM_IGN_EXPIRES        0x00000008
 #define NGX_HTTP_UPSTREAM_IGN_CACHE_CONTROL  0x00000010
+#define NGX_HTTP_UPSTREAM_IGN_SET_COOKIE     0x00000020
 
 
 typedef struct {