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authorRoman Arutyunyan <arut@nginx.com>2015-11-11 15:47:30 +0300
committerRoman Arutyunyan <arut@nginx.com>2015-11-11 15:47:30 +0300
commit89a049be89a2d0507bf1e4558733934bf6597432 (patch)
treee21a83691a7fe266008f413d14966cec9b89604c
parent93aef089b44cf2a0bcb276eaa17ccea43024f5c2 (diff)
Upstream: proxy_cache_convert_head directive.
The directive toggles conversion of HEAD to GET for cacheable proxy requests. When disabled, $request_method must be added to cache key for consistency. By default, HEAD is converted to GET as before.
-rw-r--r--src/http/modules/ngx_http_proxy_module.c11
-rw-r--r--src/http/ngx_http_upstream.c2
-rw-r--r--src/http/ngx_http_upstream.h1
3 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 514c23ba..19335091 100644
--- a/src/http/modules/ngx_http_proxy_module.c
+++ b/src/http/modules/ngx_http_proxy_module.c
@@ -533,6 +533,13 @@ static ngx_command_t ngx_http_proxy_commands[] = {
offsetof(ngx_http_proxy_loc_conf_t, upstream.cache_revalidate),
NULL },
+ { ngx_string("proxy_cache_convert_head"),
+ 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_convert_head),
+ NULL },
+
#endif
{ ngx_string("proxy_temp_path"),
@@ -2845,6 +2852,7 @@ ngx_http_proxy_create_loc_conf(ngx_conf_t *cf)
conf->upstream.cache_lock_timeout = NGX_CONF_UNSET_MSEC;
conf->upstream.cache_lock_age = NGX_CONF_UNSET_MSEC;
conf->upstream.cache_revalidate = NGX_CONF_UNSET;
+ conf->upstream.cache_convert_head = NGX_CONF_UNSET;
#endif
conf->upstream.hide_headers = NGX_CONF_UNSET_PTR;
@@ -3143,6 +3151,9 @@ ngx_http_proxy_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child)
ngx_conf_merge_value(conf->upstream.cache_revalidate,
prev->upstream.cache_revalidate, 0);
+ ngx_conf_merge_value(conf->upstream.cache_convert_head,
+ prev->upstream.cache_convert_head, 1);
+
#endif
ngx_conf_merge_str_value(conf->method, prev->method, "");
diff --git a/src/http/ngx_http_upstream.c b/src/http/ngx_http_upstream.c
index 15305969..74fffd5c 100644
--- a/src/http/ngx_http_upstream.c
+++ b/src/http/ngx_http_upstream.c
@@ -764,7 +764,7 @@ ngx_http_upstream_cache(ngx_http_request_t *r, ngx_http_upstream_t *u)
return rc;
}
- if (r->method & NGX_HTTP_HEAD) {
+ if ((r->method & NGX_HTTP_HEAD) && u->conf->cache_convert_head) {
u->method = ngx_http_core_get_method;
}
diff --git a/src/http/ngx_http_upstream.h b/src/http/ngx_http_upstream.h
index 64157e6a..84042659 100644
--- a/src/http/ngx_http_upstream.h
+++ b/src/http/ngx_http_upstream.h
@@ -193,6 +193,7 @@ typedef struct {
ngx_msec_t cache_lock_age;
ngx_flag_t cache_revalidate;
+ ngx_flag_t cache_convert_head;
ngx_array_t *cache_valid;
ngx_array_t *cache_bypass;