desarrolla2/gist:7216729

## gistfile1.txt
backend default {

	.host = "127.0.0.1";
	.port = "8080";
}

# vcl_recv (yes, we’re skimpy with characters, it’s Unix) is called at the beginning of a request, after the complete request has been received and parsed. Its purpose is to decide whether or not to serve the request, how to do it, and, if applicable, which backend to use.
# In vcl_recv you can also alter the request. Typically you can alter the cookies and add and remove request headers.
# Note that in vcl_recv only the request object, req is available.

sub vcl_recv {

	# Serve objects up to 2 minutes
	set req.grace = 2m;
	set req.http.X-Forwarded-For = client.ip;
	set req.http.Host = regsub(req.http.Host, ":[0-9]+", "");
	set req.backend = default;

	if (req.request == "PURGE") {
       	error 405 "Not allowed.";

           return(lookup);
   	}

	if (
		req.request != "GET" &&
        req.request != "HEAD" &&
        req.request != "PUT" &&
        req.request != "POST" &&
        req.request != "TRACE" &&
        req.request != "OPTIONS" &&
        req.request != "DELETE"
		) {
		# Non-RFC2616 or CONNECT which is weird.

		return (pipe);
	}

	if (req.request != "GET" && req.request != "HEAD") {
		# We only deal with GET and HEAD by default

		return (pass);
	}

	# Remove cookies set by Google Analytics (pattern: '__utmABC')
    if (req.http.Cookie) {
		set req.http.Cookie = regsuball(req.http.Cookie, "(^|; ) *__utm.=[^;]+;? *", "\1");
		if (req.http.Cookie == "") {
			remove req.http.Cookie;
		}
	}

	if (req.http.X-Forwarded-Proto == "https" ) {
		set req.http.X-Forwarded-Port = "443";
	} else {
		set req.http.X-Forwarded-Port = "80";
		set req.http.X-Forwarded-Proto = "http";
	}

	# Search in cache
	if (req.url ~ "\.(jpg|jpeg|gif|png|ico|css|zip|tgz|gz|rar|bz2|pdf|txt|tar|wav|bmp|rtf|js|flv|swf|xml)$") {
		set req.http.user-agent = "Mozilla";
		unset req.http.Cookie;

		return(lookup);
	}

	# Normalize Accept-Encoding to reduce vary
	if (req.http.Accept-Encoding) {
		if (req.http.User-Agent ~ "MSIE 6") {
			unset req.http.Accept-Encoding;
		} elsif (req.http.Accept-Encoding ~ "gzip") {
			set req.http.Accept-Encoding = "gzip";
		} elsif (req.http.Accept-Encoding ~ "deflate") {
			set req.http.Accept-Encoding = "deflate";
		} else {
	    	unset req.http.Accept-Encoding;
		}
	}

    # Not cacheable by default
	if (req.http.Authorization /* || req.http.Cookie */) {

		return (pass);
	}

	return(lookup);
}

# vcl_fetch is called after a document has been successfully retrieved from the backend. Normal tasks her are to alter the response headers, trigger ESI processing, try alternate backend servers in case the request failed.
# In vcl_fetch you still have the request object, req, available. There is also a backend response, beresp. beresp will contain the HTTP headers from the backend.

sub vcl_fetch {

	# Serve objects up to 2 minutes
	set beresp.grace = 2m;

	if (req.url ~ "\.(jpg|jpeg|gif|png|ico|css|zip|tgz|gz|rar|bz2|pdf|txt|tar|wav|bmp|rtf|js|flv|swf|xml)$") {
		unset beresp.http.set-cookie;
	}

	return (deliver);
}


sub vcl_deliver {

	remove resp.http.X-Powered-By;
	remove resp.http.Vary;
	remove resp.http.X-Varnish;
	remove resp.http.Via;
	#remove resp.http.Age;

	set resp.http.Server = "D2Server1.0" ;

	if (obj.hits > 0) {
		set resp.http.X-Cache = "hit";
		set resp.http.X-Cache-Hits = obj.hits;
	} else {
		set resp.http.X-Cache = "miss";
	}

	return (deliver);

}

sub vcl_hash {

	hash_data(req.url);

    if (req.http.host) {
    	hash_data(req.http.host);
	} else {
		hash_data(server.ip);
	}

        return (hash);
}

sub vcl_error {

    set obj.http.Content-Type = "text/html; charset=utf-8";
    set obj.http.Retry-After = "5";
    synthetic {"
        <?xml version="1.0" encoding="utf-8"?>
        <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
        "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
        <html>
			<head>
				<title>"} + obj.status + " " + obj.response + {"</title>
			</head>
		<body>
            <h1>Error "} + obj.status + " " + obj.response + {"</h1>
            <p>"} + obj.response + {"</p>
            <h3>D2 Server</h3>
        	<p>XID: "} + req.xid + {"</p>
    	</body>
	</html>"};

	return (deliver);
}
	backend default {

	.host = "127.0.0.1";
	.port = "8080";
	}

	# vcl_recv (yes, we’re skimpy with characters, it’s Unix) is called at the beginning of a request, after the complete request has been received and parsed. Its purpose is to decide whether or not to serve the request, how to do it, and, if applicable, which backend to use.
	# In vcl_recv you can also alter the request. Typically you can alter the cookies and add and remove request headers.
	# Note that in vcl_recv only the request object, req is available.

	sub vcl_recv {

	# Serve objects up to 2 minutes
	set req.grace = 2m;
	set req.http.X-Forwarded-For = client.ip;
	set req.http.Host = regsub(req.http.Host, ":[0-9]+", "");
	set req.backend = default;

	if (req.request == "PURGE") {
	error 405 "Not allowed.";

	return(lookup);
	}

	if (
	req.request != "GET" &&
	req.request != "HEAD" &&
	req.request != "PUT" &&
	req.request != "POST" &&
	req.request != "TRACE" &&
	req.request != "OPTIONS" &&
	req.request != "DELETE"
	) {
	# Non-RFC2616 or CONNECT which is weird.

	return (pipe);
	}

	if (req.request != "GET" && req.request != "HEAD") {
	# We only deal with GET and HEAD by default

	return (pass);
	}

	# Remove cookies set by Google Analytics (pattern: '__utmABC')
	if (req.http.Cookie) {
	set req.http.Cookie = regsuball(req.http.Cookie, "(^\|; ) __utm.=[^;]+;? ", "\1");
	if (req.http.Cookie == "") {
	remove req.http.Cookie;
	}
	}

	if (req.http.X-Forwarded-Proto == "https" ) {
	set req.http.X-Forwarded-Port = "443";
	} else {
	set req.http.X-Forwarded-Port = "80";
	set req.http.X-Forwarded-Proto = "http";
	}

	# Search in cache
	if (req.url ~ "\.(jpg\|jpeg\|gif\|png\|ico\|css\|zip\|tgz\|gz\|rar\|bz2\|pdf\|txt\|tar\|wav\|bmp\|rtf\|js\|flv\|swf\|xml)$") {
	set req.http.user-agent = "Mozilla";
	unset req.http.Cookie;

	return(lookup);
	}

	# Normalize Accept-Encoding to reduce vary
	if (req.http.Accept-Encoding) {
	if (req.http.User-Agent ~ "MSIE 6") {
	unset req.http.Accept-Encoding;
	} elsif (req.http.Accept-Encoding ~ "gzip") {
	set req.http.Accept-Encoding = "gzip";
	} elsif (req.http.Accept-Encoding ~ "deflate") {
	set req.http.Accept-Encoding = "deflate";
	} else {
	unset req.http.Accept-Encoding;
	}
	}

	# Not cacheable by default
	if (req.http.Authorization /* \|\| req.http.Cookie */) {

	return (pass);
	}

	return(lookup);
	}

	# vcl_fetch is called after a document has been successfully retrieved from the backend. Normal tasks her are to alter the response headers, trigger ESI processing, try alternate backend servers in case the request failed.
	# In vcl_fetch you still have the request object, req, available. There is also a backend response, beresp. beresp will contain the HTTP headers from the backend.

	sub vcl_fetch {

	# Serve objects up to 2 minutes
	set beresp.grace = 2m;

	if (req.url ~ "\.(jpg\|jpeg\|gif\|png\|ico\|css\|zip\|tgz\|gz\|rar\|bz2\|pdf\|txt\|tar\|wav\|bmp\|rtf\|js\|flv\|swf\|xml)$") {
	unset beresp.http.set-cookie;
	}

	return (deliver);
	}


	sub vcl_deliver {

	remove resp.http.X-Powered-By;
	remove resp.http.Vary;
	remove resp.http.X-Varnish;
	remove resp.http.Via;
	#remove resp.http.Age;

	set resp.http.Server = "D2Server1.0" ;

	if (obj.hits > 0) {
	set resp.http.X-Cache = "hit";
	set resp.http.X-Cache-Hits = obj.hits;
	} else {
	set resp.http.X-Cache = "miss";
	}

	return (deliver);

	}

	sub vcl_hash {

	hash_data(req.url);

	if (req.http.host) {
	hash_data(req.http.host);
	} else {
	hash_data(server.ip);
	}

	return (hash);
	}

	sub vcl_error {

	set obj.http.Content-Type = "text/html; charset=utf-8";
	set obj.http.Retry-After = "5";
	synthetic {"
	<?xml version="1.0" encoding="utf-8"?>
	<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
	"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
	<html>
	<head>
	<title>"} + obj.status + " " + obj.response + {"</title>
	</head>
	<body>
	<h1>Error "} + obj.status + " " + obj.response + {"</h1>
	<p>"} + obj.response + {"</p>
	<h3>D2 Server</h3>
	<p>XID: "} + req.xid + {"</p>
	</body>
	</html>"};

	return (deliver);
	}