From 50f68e6197f2500fa9758155578e865fafdd5b7d Mon Sep 17 00:00:00 2001
From: Mauro Amico <mauro.amico@gmail.com>
Date: Wed, 27 Mar 2024 20:21:25 +0100
Subject: [PATCH] vcl_synth

---
 CHANGES.rst                                        | 3 ++-
 README.rst                                         | 2 +-
 plone/recipe/varnish/recipe.py                     | 1 +
 plone/recipe/varnish/templates/varnish6.vcl.jinja2 | 1 +
 4 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/CHANGES.rst b/CHANGES.rst
index d672c15..08d6340 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -4,7 +4,8 @@ Changelog
 6.0.12 (unreleased)
 -------------------
 
-- Nothing changed yet.
+- Add vcl_synth options to insert arbitrary vcl.
+  [mamico]
 
 
 6.0.11 (2023-08-18)
diff --git a/README.rst b/README.rst
index 7bad462..9444d3b 100644
--- a/README.rst
+++ b/README.rst
@@ -308,7 +308,7 @@ These options are available for the recipe part plone.recipe.varnish:configurati
     Specifies hostnames or IP addresses for purge ACL. By default ``localhost`` and
     the backends are allowed to purge. Additional allowed hosts are listed here.
 
-``vcl_recv``, ``vcl_hit``, ``vcl_miss``, ``vcl_backend_fetch``, ``vcl_backend_response``, ``vcl_deliver``, ``vcl_pipe``, ``vlc_purge``, ``vcl_hash``, ``vcl_import``, ``vcl_init``, ``vcl_pass``
+``vcl_recv``, ``vcl_hit``, ``vcl_miss``, ``vcl_backend_fetch``, ``vcl_backend_response``, ``vcl_deliver``, ``vcl_pipe``, ``vlc_purge``, ``vcl_hash``, ``vcl_import``, ``vcl_init``, ``vcl_pass``, ``vcl_synth``
     Insert arbitrary VCL code into the generated config.
 
 ``verbose-headers``
diff --git a/plone/recipe/varnish/recipe.py b/plone/recipe/varnish/recipe.py
index 52de39a..8d01455 100644
--- a/plone/recipe/varnish/recipe.py
+++ b/plone/recipe/varnish/recipe.py
@@ -300,6 +300,7 @@ def create_varnish_configuration(self):
             "vcl_pipe",
             "vcl_backend_response",
             "vcl_hash",
+            "vcl_synth",
         ):
             config["custom"][name] = self.options.get(name, "")
 
diff --git a/plone/recipe/varnish/templates/varnish6.vcl.jinja2 b/plone/recipe/varnish/templates/varnish6.vcl.jinja2
index 80dbabe..cd0d254 100644
--- a/plone/recipe/varnish/templates/varnish6.vcl.jinja2
+++ b/plone/recipe/varnish/templates/varnish6.vcl.jinja2
@@ -356,6 +356,7 @@ sub vcl_deliver {
  We can come here "invisibly" with the following errors: 413, 417 & 503
 */
 sub vcl_synth {
+    {{custom['vcl_synth']}}
     set resp.http.Content-Type = "text/html; charset=utf-8";
     set resp.http.Retry-After = "5";