section-io-gists

sub vcl_recv {
    # Happens before we check if we have this in cache already.
    #
    # Typically you clean up the request here, removing cookies you don't need,
    # rewriting the request, etc.

    if (req.method != "GET" && req.method != "HEAD" && req.method != "PURGE") {
        return (pass);
    }
 

section-io-gists

#Example of HTML Streaming. This gist involves both Varnish and nginx LUA reverse proxies

#Varnish:
sub vcl_recv {
  # Do not stream on non-get requests  
  if (req.method != "GET" && req.method != "HEAD" && req.method != "PURGE") {
        return (pass);
  }

    # By defaul disable holepunch unless below cases fall through (do not modify this line)

section-io-gists

sub vcl_recv {
    # Strip browser side tracking script to improve cache hit rate
    if (req.url ~ "[?&](utm_source|utm_medium|utm_campaign|gclid|cx|ie|cof|siteurl|mc_cid|mc_eid)=") {
        set req.url = regsuball(req.url, "(?:(\?)?|&)(?:utm_source|utm_medium|utm_campaign|gclid|cx|ie|cof|siteurl|mc_cid|mc_eid)=[^&]+", "\1");
        set req.url = regsuball(req.url, "(?:(\?)&|\?$)", "\1");
    }
}

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 ~ "^(AU|NZ)$") {
        # Australia and New Zealand
        #return (synth(802, "https://www.domain.com.au/"));
    } else if (req.http.section-io-geo-country ~ "^(US|CA|MX)$") {
        # US, Canada and Mexico
        #return (synth(802, "http://www.domain.com/"));

section-io-gists

sub vcl_recv {
    if (req.http.X-Forwarded-Proto !~ "https") {
        error 850 "Moved permenantly";
    }
}

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

section-io-gists

sub vcl_recv {
  if (req.http.X-Forwarded-Proto !~ "https") {
    return (synth(850, "Moved Permanently"));
  }
}

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

section-io-gists

import std;

acl whitelist {
    "123.123.123.123";
    "216.3.128.12";
}

sub vcl_recv {
  # If not a whitelisted IP, then display maintenance page. Requires std library.
  if(std.ip(regsub(req.http.X-Forwarded-For, "[, ].*$", ""), client.ip) !~ whitelist) {

section-io-gists

# Note: You will want to add the snippet: `include "pagespeed-requirement.vcl";` above your `vcl_recv` in the default.vcl file.

sub vcl_recv {
    call pagespeed_capability_detection;
}

# Function derived from requirements here https://modpagespeed.com/doc/downstream-caching#ps-capabilitylist
# Additional detection logic for crawlers, tablet and mobile devices.
sub pagespeed_capability_detection {
    if (req.http.User-Agent ~ "(?i)Chrome/[3][2-9]+\.|Chrome/[4-9][0-9]+\.|Chrome/[0-9]{3,}\.") {

section-io-gists

#Varnish 4 config below

sub vcl_recv {
    
    #Add font files to be cached as static caching checkbox misses .woff
    if (req.url ~ ".*\.(?:css|js|jpe?g|png|gif|ico|swf|woff)(?=\?|&|$)") {
        return (hash);
    }
}

section-io-gists

sub vcl_hash {

    #Vary cache by protocol type to avoid caching things like HTTP->HTTPS redirects and different versions of files
    hash_data(req.http.X-Forwarded-Proto);

}