From ce1dff7329becd3e75e5488ecf08d46e22ba701d Mon Sep 17 00:00:00 2001
From: Leo Semenenko <leo@optimull.com>
Date: Wed, 13 Nov 2019 03:20:04 -0600
Subject: [PATCH] Add skip reason headers and woocommerce rules for
 fastcgi-cache

---
 conf.d/.gitignore                |  5 +++--
 global/server/fastcgi-cache.conf | 21 +++++++++++++++++++++
 modules-enabled/.gitignore       |  3 +++
 sites-enabled/.gitignore         |  5 +++--
 4 files changed, 30 insertions(+), 4 deletions(-)
 create mode 100644 modules-enabled/.gitignore

diff --git a/conf.d/.gitignore b/conf.d/.gitignore
index 161a78e..b297b03 100644
--- a/conf.d/.gitignore
+++ b/conf.d/.gitignore
@@ -1,2 +1,3 @@
-# Ignore custom module config
-/*
\ No newline at end of file
+# Ignore custom module config
+/*
+!.gitignore
diff --git a/global/server/fastcgi-cache.conf b/global/server/fastcgi-cache.conf
index 14d0d7f..8079ac2 100644
--- a/global/server/fastcgi-cache.conf
+++ b/global/server/fastcgi-cache.conf
@@ -10,9 +10,12 @@ fastcgi_ignore_headers Cache-Control Expires Set-Cookie;
 
 # Show the cache status in server responses.
 add_header Fastcgi-Cache $upstream_cache_status;
+add_header Fastcgi-Cache-Skip $skip_reason;
+add_header REQUEST_URI $request_uri;
 
 # Don't skip by default
 set $skip_cache 0;
+set $skip_reason "";
 
 # POST requests and urls with a query string should always go to PHP
 if ($request_method = POST) {
@@ -21,14 +24,32 @@ if ($request_method = POST) {
 
 if ($query_string != "") {
 	set $skip_cache 1;
+	set $skip_reason "QueryString${skip_reason}";
 }
 
 # Don't cache uris containing the following segments
 if ($request_uri ~* "/wp-admin/|/wp-json/|/xmlrpc.php|wp-.*.php|/feed/|index.php|sitemap(_index)?.xml") {
 	set $skip_cache 1;
+	set $skip_reason "URI${skip_reason}";
 }
 
 # Don't use the cache for logged in users or recent commenters
 if ($http_cookie ~* "comment_author|wordpress_[a-f0-9]+|wp-postpass|wordpress_no_cache|wordpress_logged_in") {
 	set $skip_cache 1;
+	set $skip_reason "LoggedIn${skip_reason}";
+}
+
+if ($request_uri ~* "/store.*|/cart.*|/my-account.*|/checkout.*|/addons.*") {
+	set $skip_cache 1;
+	set $skip_reason "Store${skip_reason}";
+}
+
+if ( $arg_add-to-cart != "" ) {
+	set $skip_cache 1;
+	set $skip_reason "AddToCard${skip_reason}";
+}
+
+if ( $cookie_woocommerce_items_in_cart != "" ) {
+	set $skip_cache 1;
+	set $skip_reason "ItemsInCart${skip_reason}";
 }
diff --git a/modules-enabled/.gitignore b/modules-enabled/.gitignore
new file mode 100644
index 0000000..854b4d5
--- /dev/null
+++ b/modules-enabled/.gitignore
@@ -0,0 +1,3 @@
+# Ignore everything in modules-enabled directory
+/*
+!.gitignore
diff --git a/sites-enabled/.gitignore b/sites-enabled/.gitignore
index 0050dfe..2a0bbc6 100644
--- a/sites-enabled/.gitignore
+++ b/sites-enabled/.gitignore
@@ -1,2 +1,3 @@
-# Ignore everything in sites-enabled directory
-/*
\ No newline at end of file
+# Ignore everything in sites-enabled directory
+/*
+!.gitignore