section-io-gists

sub vcl_recv {
    # Set the header at the very top of sub vcl_recv before anyu return(pass) calls
    set req.http.section-shared-secret = "RTio4vNHfxiWabqKxj8PZ99k"; 
}


# Check for this header and its value on the origin server

section-io-gists

sub vcl_recv {
    if (req.request != "GET" && req.request != "HEAD" && req.request != "PURGE") {
        return (pass);
    }
    // Rest of vcl_recv code
    return(lookup);
}

sub vcl_fetch {
    if (req.request != "GET" && req.request != "HEAD" && req.request != "PURGE") {

section-io-gists

sub vcl_recv {
    if the request isn't GET|HEAD|PURGE {
        skip the rest of vcl_recv code
    }
    // Rest of vcl_recv code
    perform a lookup in cache
}

sub vcl_backend_response {
    if the request isn't GET|HEAD|PURGE {

section-io-gists

sub vcl_recv {
    if (req.method != "GET" && req.method != "HEAD" && req.method != "PURGE") {
        return (pass);
    }
    // Rest of vcl_recv code

    return(hash);
}

sub vcl_backend_response {

section-io-gists

sub vcl_recv {
  # Set a X-Language header to spanish is the client is from a spanish speaking country
  if (req.http.section-io-geo-country ~ "^(AR|BO|CL|CO|CR|CU|DO|EC|SV|GQ|GT|HN|MX|NI|PA|PY|PE|ES|UY|VE)$") {
    set req.http.X-Language = "Spanish";
  } else {
    set req.http.X-Language = "English";
  }
}

sub vcl_hash {

section-io-gists

sub vcl_recv {
  if (req.http.host !~ "www") {
    error 850 "Moved Permanently";
  }
}

sub vcl_error {
  if(obj.status == 850) {
    set obj.http.Location = "https://www." + req.http.host + req.url;
    set obj.status = 301;

section-io-gists

sub vcl_recv {
  if (req.http.host !~ "www") {
    return (synth(850, "Moved Permanently"));
  }
}

sub vcl_synth {
  if(resp.status == 850) {
    set resp.http.Location = "https://www." + req.http.host + req.url;
    set resp.status = 301;

section-io-gists

#vcl 4.0;

# comment the following imports if imported elsewhere
import cookie;
import header;
import std;
import var;

sub vcl_synth {
    if (resp.status == 837) {

section-io-gists

# Please note: There is an underlying default Varnish behavior that occurs after the VCL logic
# you see below. You can see the bultin code here
# https://github.com/varnishcache/varnish-cache/blob/5.1/bin/varnishd/builtin.vcl
#
# See the VCL chapters in the Users Guide at https://www.varnish-cache.org/docs/
# and http://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;

section-io-gists

sub vcl_recv {
  # section.io Edge node automatically performs GEO IP (and city) lookup on every request.
  # We create a request header called "section-io-geo-country" that you can leverage

    if (req.http.section-io-geo-country ~ "^RU$") {
        # Block Russia
        error 403 "Forbidden";
    } 
}