Nginx Config

Here's the general configuration for Nginx.

# BEGIN VENDI CACHE CODE
#Match on gzip first because ordering matters.
location ~ "/wp-content/vendi_cache/.*gzip$" {
    gzip off;
    types {}
    default_type text/html;
    add_header Vary "Accept-Encoding, Cookie";
    add_header Content-Encoding gzip;
}

#If the previous matched, the following location won't be executed.
location ~ /wp-content/vendi_cache/.* {
    add_header Vary "Accept-Encoding, Cookie";
}

set $vendiCacheOn 1;

#Don't cache form submissions.
if ($request_method = POST) {
        set $vendiCacheOn 0;
}

#Allow caching of /?123=123 because this is a common DDoS to override caches.
if ($query_string !~ "^(?:\d+=\d+)?$") {
    set $vendiCacheOn 0;
}

#Only cache URL's ending in /
if ($request_uri !~ \/$) {
        set $vendiCacheOn 0;
}

#Don't cache any cookies with this in their names e.g. users who are logged in.
if ($http_cookie ~* "(comment_author|wp\-postpass|wf_logout|wordpress_logged_in|wptouch_switch_toggle|wpmp_switcher)") {
    set $vendiCacheOn 0;
}

set $vendiCacheEncoding "";
#Oh, you want gzipped content?
if ($http_accept_encoding ~ gzip) {
    set $vendiCacheEncoding _gzip;
}
set $vendiCacheHTTPS "";
if ($scheme = 'https'){
        #If you want to ENABLE HTTPS caching, comment out the next line.
        #set $vendiCacheOn 0; #Comment this line out to enable HTTPS caching.

        set $vendiCacheHTTPS '_https'; #Uncomment this line to enable HTTPS caching.
}

#The main purpose of this line is to capture the URL components into variables.
if ($request_uri !~ "^\/*(?[^\/]*)\/*(?[^\/]*)\/*(?[^\/]*)\/*(?[^\/]*)\/*(?[^\/]*)(?.*)$"){
#                       set $vendiCacheOn 0;
}

#If the file doesn't exist then don't serve from cache.
if (!-f "$document_root/wp-content/vendi_cache/${http_host}_${wfone}/${wftwo}~${wfthree}~${wffour}~${wffive}~${wfsix}_vendi_cache${vendiCacheHTTPS}.html${vendiCacheEncoding}") {
  set $vendiCacheOn 0;
}

if ($vendiCacheOn = 1) {
    rewrite .* "/wp-content/vendi_cache/${http_host}_${wfone}/${wftwo}~${wfthree}~${wffour}~${wffive}~${wfsix}_vendi_cache${vendiCacheHTTPS}.html${vendiCacheEncoding}" last;
}
# END VENDI CACHE CODE