Merge pull request #1434 from USEPA/nginx-fast-404

Return HTTP 410 for now-removed search paths

services/drupal/default.conf

@@ -47,6 +47,49 @@ server {
     rewrite ^/(.*)$ /index.php?q=$1;
   }
 
+  # On any nginx 404, use this internal path
+  error_page 404 /_404;
+
+  # Set up nginx's 404 machinery to return fast-404.html anytime nginx process a 404
+  location = /_404 {
+    # Internal means /_404 can't be visited from outside
+    internal;
+
+    # Return the contents of fast-404.html
+    root /var/www/html/web/themes/epa_theme/source;
+    try_files /fast-404.html =404;
+  }
+
+  # For each listed path, return HTTP 410 Gone, using our 404 template instead:
+  # users will see a "page not found" page, but code will see a "this page will
+  # never return" status code. Hopefully this will defray some of the ongoing
+  # load.
+  location ^~ /newsreleases/search/ {
+    error_page 410 /_404;
+    return 410;
+  }
+
+  location ^~ /faqs/search/ {
+    error_page 410 /_404;
+    return 410;
+  }
+
+  location ^~ /publicnotices/notices-search/ {
+    error_page 410 /_404;
+    return 410;
+  }
+
+  location ^~ /perspectives/search/ {
+    error_page 410 /_404;
+    return 410;
+  }
+
+  location ^~ /speeches/search/ {
+    error_page 410 /_404;
+    return 410;
+  }
+
+
   # This prevents nginx's view of the filesystem from conflicting with the Drupal node of
   # the same name.
   location = /libraries {