Mercurial > hg > nginx
comparison src/http/ngx_http_upstream.c @ 5878:2c89956b6a76
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 |
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| 5877:60fde1bc7236 | 5878:2c89956b6a76 |
|---|---|
| 4158 | 4158 |
| 4159 if (u->conf->ignore_headers & NGX_HTTP_UPSTREAM_IGN_VARY) { | 4159 if (u->conf->ignore_headers & NGX_HTTP_UPSTREAM_IGN_VARY) { |
| 4160 return NGX_OK; | 4160 return NGX_OK; |
| 4161 } | 4161 } |
| 4162 | 4162 |
| 4163 u->cacheable = 0; | 4163 if (r->cache == NULL) { |
| 4164 return NGX_OK; | |
| 4165 } | |
| 4166 | |
| 4167 if (h->value.len > NGX_HTTP_CACHE_VARY_LEN | |
| 4168 || (h->value.len == 1 && h->value.data[0] == '*')) | |
| 4169 { | |
| 4170 u->cacheable = 0; | |
| 4171 } | |
| 4172 | |
| 4173 r->cache->vary = h->value; | |
| 4164 | 4174 |
| 4165 #endif | 4175 #endif |
| 4166 | 4176 |
| 4167 return NGX_OK; | 4177 return NGX_OK; |
| 4168 } | 4178 } |