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Diffstat (limited to 'src/http/modules/ngx_http_proxy_module.c')
-rw-r--r--src/http/modules/ngx_http_proxy_module.c14
1 files changed, 13 insertions, 1 deletions
diff --git a/src/http/modules/ngx_http_proxy_module.c b/src/http/modules/ngx_http_proxy_module.c
index cf68711cd..404607511 100644
--- a/src/http/modules/ngx_http_proxy_module.c
+++ b/src/http/modules/ngx_http_proxy_module.c
@@ -465,6 +465,13 @@ static ngx_command_t ngx_http_proxy_commands[] = {
offsetof(ngx_http_proxy_loc_conf_t, upstream.cache_lock_timeout),
NULL },
+ { ngx_string("proxy_cache_revalidate"),
+ NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
+ ngx_conf_set_flag_slot,
+ NGX_HTTP_LOC_CONF_OFFSET,
+ offsetof(ngx_http_proxy_loc_conf_t, upstream.cache_revalidate),
+ NULL },
+
#endif
{ ngx_string("proxy_temp_path"),
@@ -622,7 +629,8 @@ static ngx_keyval_t ngx_http_proxy_cache_headers[] = {
{ ngx_string("Keep-Alive"), ngx_string("") },
{ ngx_string("Expect"), ngx_string("") },
{ ngx_string("Upgrade"), ngx_string("") },
- { ngx_string("If-Modified-Since"), ngx_string("") },
+ { ngx_string("If-Modified-Since"),
+ ngx_string("$upstream_cache_last_modified") },
{ ngx_string("If-Unmodified-Since"), ngx_string("") },
{ ngx_string("If-None-Match"), ngx_string("") },
{ ngx_string("If-Match"), ngx_string("") },
@@ -2454,6 +2462,7 @@ ngx_http_proxy_create_loc_conf(ngx_conf_t *cf)
conf->upstream.cache_valid = NGX_CONF_UNSET_PTR;
conf->upstream.cache_lock = NGX_CONF_UNSET;
conf->upstream.cache_lock_timeout = NGX_CONF_UNSET_MSEC;
+ conf->upstream.cache_revalidate = NGX_CONF_UNSET;
#endif
conf->upstream.hide_headers = NGX_CONF_UNSET_PTR;
@@ -2710,6 +2719,9 @@ ngx_http_proxy_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child)
ngx_conf_merge_msec_value(conf->upstream.cache_lock_timeout,
prev->upstream.cache_lock_timeout, 5000);
+ ngx_conf_merge_value(conf->upstream.cache_revalidate,
+ prev->upstream.cache_revalidate, 0);
+
#endif
ngx_conf_merge_str_value(conf->method, prev->method, "");