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diff src/http/ngx_http_upstream.c @ 5878:2c89956b6a76

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Cache: hash of Vary headers now stored in cache. To cache responses with Vary, we now calculate hash of headers listed in Vary, and return the response from cache only if new request headers match. As of now, only one variant of the same resource can be stored in cache.
author Maxim Dounin <mdounin@mdounin.ru>
date Mon, 27 Oct 2014 21:13:58 +0300
parents 60fde1bc7236
children 973ee2276300
line wrap: on
line diff
--- a/src/http/ngx_http_upstream.c
+++ b/src/http/ngx_http_upstream.c
@@ -4160,7 +4160,17 @@ ngx_http_upstream_process_vary(ngx_http_
         return NGX_OK;
     }
 
-    u->cacheable = 0;
+    if (r->cache == NULL) {
+        return NGX_OK;
+    }
+
+    if (h->value.len > NGX_HTTP_CACHE_VARY_LEN
+        || (h->value.len == 1 && h->value.data[0] == '*'))
+    {
+        u->cacheable = 0;
+    }
+
+    r->cache->vary = h->value;
 
 #endif