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#
# This is an example VCL file for Varnish.
#
# 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 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;
# Default backend definition. Set this to point to your content server.
backend default {
.host = "127.0.0.1";
.port = "8080";
}
acl einstein {
"localhost"; # myself
"185.12.59.12"; # and everyone on the local network
"2a02:ed02:1337::12";
}
sub vcl_recv {
if (req.url ~ "nightMode") {
set req.url = regsub(req.url, "nightMode","");
set req.url = req.url + "?nightMode";
}
# 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.restarts == 0) {
if (req.http.X-Forwarded-For) {
set req.http.X-Forwarded-For = req.http.X-Forwarded-For + ", " + client.ip;
} else {
set req.http.X-Forwarded-For = client.ip;
}
}
if (client.ip ~ einstein){
set req.http.x-einstein = "true";
} else {
set req.http.x-einstein = "false";
}
if (req.http.host ~ "stream") {
return (pass);
}
if (req.http.host ~ "nms-public"){
return (pass);
}
if (req.method != "GET" &&
req.method != "HEAD" &&
req.method != "PUT" &&
req.method != "POST" &&
req.method != "TRACE" &&
req.method != "OPTIONS" &&
req.method != "DELETE") {
/* Non-RFC2616 or CONNECT which is weird. */
return (pipe);
}
if (req.method != "GET" && req.method != "HEAD") {
/* We only deal with GET and HEAD by default */
return (pass);
}
unset req.http.Cookie;
if (req.http.Cookie) {
/* Not cacheable by default */
return (pass);
}
return (hash);
}
sub vcl_hash {
hash_data(req.http.x-einstein);
hash_data(req.http.authorization);
}
sub vcl_backend_response {
# Happens after we have read the response headers from the backend.
#
# Here you clean the response headers, removing silly Set-Cookie headers
# and other mistakes your backend does.
if (!(bereq.http.host ~ "stream")) {
if (beresp.status == 200) {
set beresp.ttl = 2s;
} else {
set beresp.ttl = 0s;
}
if(bereq.url ~ "port-state.pl" && beresp.status == 200) {
set beresp.ttl = 30s;
}
if (beresp.status == 500) {
return (retry);
}
}
}
sub vcl_deliver {
# Happens when we have all the pieces we need, and are about to send the
# response to the client.
#
# You can do accounting or modifying the final object here.
}
sub vcl_backend_error {
set beresp.http.Content-Type = "text/html; charset=utf-8";
set beresp.http.Retry-After = "5";
synthetic( {"<!DOCTYPE html>
<html>
<head>
<title>"} + beresp.status + " " + beresp.reason + {"</title>
<meta http-equiv="refresh" content="1">
</head>
<body>
<h1>Error "} + beresp.status + " " + beresp.reason + {"</h1>
<p>"} + beresp.reason + {"</p>
<h3>Guru Meditation:</h3>
<p>XID: "} + bereq.xid + {"</p>
<hr>
<p>Totally not a Varnish cache server errror</p>
</body>
</html>
"} );
return (deliver);
}
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