proxy_cache_methods and fastcgi_cache_methods

src/http/modules/ngx_http_fastcgi_module.c

diff --git a/src/http/modules/ngx_http_fastcgi_module.c b/src/http/modules/ngx_http_fastcgi_module.c
index 066d604..83178db 100644
--- a/src/http/modules/ngx_http_fastcgi_module.c
+++ b/src/http/modules/ngx_http_fastcgi_module.c
@@ -353,6 +353,13 @@
       offsetof(ngx_http_fastcgi_loc_conf_t, upstream.cache_use_stale),
       &ngx_http_fastcgi_next_upstream_masks },
 
+    { ngx_string("fastcgi_cache_methods"),
+      NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE,
+      ngx_conf_set_bitmask_slot,
+      NGX_HTTP_LOC_CONF_OFFSET,
+      offsetof(ngx_http_fastcgi_loc_conf_t, upstream.cache_methods),
+      &ngx_http_upstream_cache_method_mask },
+
 #endif
 
     { ngx_string("fastcgi_temp_path"),
@@ -1835,7 +1842,8 @@
      *     conf->upstream.bufs.num = 0;
      *     conf->upstream.ignore_headers = 0;
      *     conf->upstream.next_upstream = 0;
-     *     conf->upstream.use_stale_cache = 0;
+     *     conf->upstream.cache_use_stale = 0;
+     *     conf->upstream.cache_methods = 0;
      *     conf->upstream.temp_path = NULL;
      *     conf->upstream.hide_headers_hash = { NULL, 0 };
      *     conf->upstream.uri = { 0, NULL };
@@ -2083,6 +2091,12 @@
                                          |NGX_HTTP_UPSTREAM_FT_OFF;
     }
 
+    if (conf->upstream.cache_methods == 0) {
+        conf->upstream.cache_methods = prev->upstream.cache_methods;
+    }
+
+    conf->upstream.cache_methods |= NGX_HTTP_GET|NGX_HTTP_HEAD;
+
     ngx_conf_merge_ptr_value(conf->upstream.cache_valid,
                              prev->upstream.cache_valid, NULL);
 

src/http/modules/ngx_http_proxy_module.c

diff --git a/src/http/modules/ngx_http_proxy_module.c b/src/http/modules/ngx_http_proxy_module.c
index b191fbc..484694d 100644
--- a/src/http/modules/ngx_http_proxy_module.c
+++ b/src/http/modules/ngx_http_proxy_module.c
@@ -377,6 +377,13 @@
       offsetof(ngx_http_proxy_loc_conf_t, upstream.cache_use_stale),
       &ngx_http_proxy_next_upstream_masks },
 
+    { ngx_string("proxy_cache_methods"),
+      NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE,
+      ngx_conf_set_bitmask_slot,
+      NGX_HTTP_LOC_CONF_OFFSET,
+      offsetof(ngx_http_proxy_loc_conf_t, upstream.cache_methods),
+      &ngx_http_upstream_cache_method_mask },
+
 #endif
 
     { ngx_string("proxy_temp_path"),
@@ -1885,7 +1892,8 @@
      *     conf->upstream.bufs.num = 0;
      *     conf->upstream.ignore_headers = 0;
      *     conf->upstream.next_upstream = 0;
-     *     conf->upstream.use_stale_cache = 0;
+     *     conf->upstream.cache_use_stale = 0;
+     *     conf->upstream.cache_methods = 0;
      *     conf->upstream.temp_path = NULL;
      *     conf->upstream.hide_headers_hash = { NULL, 0 };
      *     conf->upstream.uri = { 0, NULL };
@@ -2139,6 +2147,12 @@
                               (NGX_CONF_BITMASK_SET
                                |NGX_HTTP_UPSTREAM_FT_OFF));
 
+    if (conf->upstream.cache_methods == 0) {
+        conf->upstream.cache_methods = prev->upstream.cache_methods;
+    }
+
+    conf->upstream.cache_methods |= NGX_HTTP_GET|NGX_HTTP_HEAD;
+
     if (conf->upstream.cache_use_stale & NGX_HTTP_UPSTREAM_FT_OFF) {
         conf->upstream.cache_use_stale = NGX_CONF_BITMASK_SET
                                          |NGX_HTTP_UPSTREAM_FT_OFF;

src/http/ngx_http_upstream.c

diff --git a/src/http/ngx_http_upstream.c b/src/http/ngx_http_upstream.c
index 9d86914..d789d6c 100644
--- a/src/http/ngx_http_upstream.c
+++ b/src/http/ngx_http_upstream.c
@@ -329,6 +329,15 @@
     { 0, 0 }
 };
 
+
+ngx_conf_bitmask_t  ngx_http_upstream_cache_method_mask[] = {
+   { ngx_string("GET"),  NGX_HTTP_GET},
+   { ngx_string("HEAD"), NGX_HTTP_HEAD },
+   { ngx_string("POST"), NGX_HTTP_POST },
+   { ngx_null_string, 0 }
+};
+
+
 void
 ngx_http_upstream_init(ngx_http_request_t *r)
 {
@@ -532,7 +541,7 @@
     ngx_int_t          rc;
     ngx_http_cache_t  *c;
 
-    if (!(r->method & (NGX_HTTP_GET|NGX_HTTP_HEAD))) {
+    if (!(r->method & u->conf->cache_methods)) {
         return NGX_DECLINED;
     }
 

src/http/ngx_http_upstream.h

diff --git a/src/http/ngx_http_upstream.h b/src/http/ngx_http_upstream.h
index 95b396e..488aed5 100644
--- a/src/http/ngx_http_upstream.h
+++ b/src/http/ngx_http_upstream.h
@@ -156,6 +156,7 @@
 
     ngx_uint_t                       cache_min_uses;
     ngx_uint_t                       cache_use_stale;
+    ngx_uint_t                       cache_methods;
 
     ngx_array_t                     *cache_valid;
 #endif
@@ -327,7 +328,9 @@
     uscf->srv_conf[module.ctx_index]
 
 
-extern ngx_module_t  ngx_http_upstream_module;
+extern ngx_module_t        ngx_http_upstream_module;
+extern ngx_conf_bitmask_t  ngx_http_upstream_cache_method_mask[];
+
 
 
 #endif /* _NGX_HTTP_UPSTREAM_H_INCLUDED_ */