Exclude caching for some admin sessions

Do not cache logged in users for WordPress, Drupal, Joomla and MODX. Othres will be covered through session cookie as well but not guaranteed.

install/deb/templates/web/nginx/caching.stpl

@@ -18,11 +18,22 @@ server {
         proxy_pass      https://%ip%:%web_ssl_port%;
 
         proxy_cache %domain%;
-        proxy_cache_valid 15m;
-        proxy_cache_valid 404 1m;
+        proxy_cache_valid 200 5m;
+        proxy_cache_valid 301 302 10m;
+        proxy_cache_valid 404 10m;
+        proxy_cache_bypass $no_cache $cookie_session $http_x_update;
         proxy_no_cache $no_cache;
-        proxy_cache_bypass $no_cache;
-        proxy_cache_bypass $cookie_session $http_x_update;
+
+        set $no_cache 0;
+            if ($request_uri ~* "/wp-admin/|wp-.*.php|xmlrpc.php|index.php|/store.*|/cart.*|/my-account.*|/checkout.*|/user/|/admin/|/administrator/|/manager/|index.php") {
+                set $no_cache 1;
+            }
+            if ($http_cookie ~* "comment_author|wordpress_[a-f0-9]+|wp-postpass|wordpress_no_cache|wordpress_logged_in|woocommerce_items_in_cart|woocommerce_cart_hash|PHPSESSID") {
+                set $no_cache 1;
+            }
+            if ($http_cookie ~ SESS) {
+                set $no_cache 1;
+            }
 
         location ~* ^.+\.(%proxy_extensions%)$ {
             proxy_cache    off;