vcl file

gistfile1.txt

#
# It does not do anything by default, delegating control to the
# builtin VCL. The builtin VCL is called when there is no explicit
# return statement.
#
# See the VCL chapters in the Users Guide at https://www.varnish-cache.org/docs/
# and https://www.varnish-cache.org/trac/wiki/VCLExamples for more examples.

# Marker to tell the VCL compiler that this VCL has been adapted to the
# new 4.0 format.
vcl 4.0;

# Default backend definition. Set this to point to your content server.
backend default {
    .host = "127.0.0.1";
    .port = "8080";
}

acl purge {
	"127.0.0.1";
}

sub vcl_recv {
	# Only allow PURGE requests from IP addresses in the 'purge' ACL.
	if (req.method == "PURGE") {
        	if (!client.ip ~ purge) {
            		return (synth(405, "Not allowed."));
        	}
        	return (purge);
    	}


	# Only allow BAN requests from IP addresses in the 'purge' ACL.
    	if (req.method == "BAN") {
        	# Same ACL check as above:
        	if (!client.ip ~ purge) {
            	return (synth(403, "Not allowed."));
        	}

        	# Logic for the ban, using the Cache-Tags header. For more info
        	# see https://github.com/geerlingguy/drupal-vm/issues/397.
        	if (req.http.Cache-Tags) {
            		ban("obj.http.Cache-Tags ~ " + req.http.Cache-Tags);
        	}
        	else {
            		return (synth(403, "Cache-Tags header missing."));
        	}

        	# Throw a synthetic page so the request won't go to the backend.
        	return (synth(200, "Ban added."));
    	}

	// Remove has_js and Google Analytics __* cookies.
        set req.http.Cookie = regsuball(req.http.Cookie, "(^|;\s*)(__[a-z_]+|_ga[a-z_]*|Drupal\.toolbar\.collapsed|UNL_Visitorchat_Session|unlAlertsData|wdn_important_notice)=[^;]*", "");
	
	// Remove a ";" prefix, if present.
        set req.http.Cookie = regsub(req.http.Cookie, "^\s*", "");
        set req.http.Cookie = regsub(req.http.Cookie, "\s*$", "");
        set req.http.Cookie = regsub(req.http.Cookie, "^;\s*", "");

        // Remove empty cookies.
        if (req.http.Cookie ~ "^\s*$") {
                unset req.http.Cookie;
        }
}

sub vcl_backend_response {
	set beresp.http.X-Url = bereq.url;
    	set beresp.http.X-Host = bereq.http.host;
}