dmouse/defatult.vcl

## defatult.vcl
acl internal {
  "127.0.0.0"/24;
}

backend web1 { .host = "192.168.1.1"; }
backend web2 { .host = "192.168.1.2"; }

director default_director round-robin {
  { .backend = web1; }
  { .backend = web2; }
}

sub vcl_recv {
  set req.backend = default_director;

  if (!req.backend.healthy) {
    unset req.http.Cookie;
  }

  set req.grace = 6h;

  if (req.url ~ "^/status\.php$"   ||
			req.url ~ "^/phpmyadmin/.*$" ||
      req.url ~ "^/update\.php$"   ||
      req.url ~ "^/admin/build/features" ||
      req.url ~ "^/info/.*$" ||
      req.url ~ "^/flag/.*$" ||
      req.url ~ "^.*/ajax/.*$" ||
      req.url ~ "^.*/ahah/.*$") {
       return (pass);
  }

  if (req.url ~ "^/admin/content/backup_migrate/export") {
    return (pipe);
  }

  if (req.url ~ "^/(cron|install)\.php$" && !client.ip ~ internal) {
    error 404 "Page not found.";
  }

  if (req.http.Accept-Encoding) {
    if (req.http.Accept-Encoding ~ "gzip") {
      set req.http.Accept-Encoding = "gzip";
    }
    else if (req.http.Accept-Encoding ~ "deflate") {
      set req.http.Accept-Encoding = "deflate";
    }
    else {
      unset req.http.Accept-Encoding;
    }
  }

  if (req.url ~ "(?i)\.(png|gif|jpeg|jpg|ico|swf|css|js|html|htm)(\?[a-z0-9]+)?$") {
    unset req.http.Cookie;
  }

  if (req.http.Cookie) {
    set req.http.Cookie = ";" + req.http.Cookie;
    set req.http.Cookie = regsuball(req.http.Cookie, "; +", ";");
    set req.http.Cookie = regsuball(req.http.Cookie, ";(SESS[a-z0-9]+|NO_CACHE)=", "; \1=");
    set req.http.Cookie = regsuball(req.http.Cookie, ";[^ ][^;]*", "");
    set req.http.Cookie = regsuball(req.http.Cookie, "^[; ]+|[; ]+$", "");

    if (req.http.Cookie == "") {
      unset req.http.Cookie;
    }
    else {
      return (pass);
    }
  }
}

sub vcl_hash {
  # Include cookie in cache hash.
  # This check is unnecessary because we already pass on all cookies.
  # if (req.http.Cookie) {
  #   set req.hash += req.http.Cookie;
  # }
}

sub vcl_fetch {
  if (req.url ~ "(?i)\.(png|gif|jpeg|jpg|ico|swf|css|js|html|htm)(\?[a-z0-9]+)?$") {
    unset beresp.http.set-cookie;
  }

  set beresp.grace = 6h;
}

sub vcl_error {

  #if (req.url ~ "^/?$") {
  #  set obj.status = 302;
  #  set obj.http.Location = "http://www2.drupalsite.com/";
  #}

  set obj.http.Content-Type = "text/html; charset=utf-8";
  synthetic {"
<html>
<head>
  <title>Page Unavailable</title>
  <style>
    body { background: #53B1EA; text-align: center; color: white; }
    #page { border: 1px solid #CCC; width: 500px; margin: 100px auto 0; padding: 30px; }
    a, a:link, a:visited { color: #CCC; }
    .error { color: #222; }
  </style>
</head>
<body onload="setTimeout(function() { window.location = '/' }, 5000)">
  <div id="page">
    <h1 class="title">Page Unavailable</h1>
    <p>The page you requested is temporarily unavailable.</p>
    <p>We're redirecting you to the <a href="/">homepage</a> in 5 seconds.</p>
    <div class="error">(Error "} + obj.status + " " + obj.response + {")</div>
  </div>
</body>
</html>
"};
  return (deliver);
}
	acl internal {
	"127.0.0.0"/24;
	}

	backend web1 { .host = "192.168.1.1"; }
	backend web2 { .host = "192.168.1.2"; }

	director default_director round-robin {
	{ .backend = web1; }
	{ .backend = web2; }
	}

	sub vcl_recv {
	set req.backend = default_director;

	if (!req.backend.healthy) {
	unset req.http.Cookie;
	}

	set req.grace = 6h;

	if (req.url ~ "^/status\.php$" \|\|
	req.url ~ "^/phpmyadmin/.*$" \|\|
	req.url ~ "^/update\.php$" \|\|
	req.url ~ "^/admin/build/features" \|\|
	req.url ~ "^/info/.*$" \|\|
	req.url ~ "^/flag/.*$" \|\|
	req.url ~ "^./ajax/.$" \|\|
	req.url ~ "^./ahah/.$") {
	return (pass);
	}

	if (req.url ~ "^/admin/content/backup_migrate/export") {
	return (pipe);
	}

	if (req.url ~ "^/(cron\|install)\.php$" && !client.ip ~ internal) {
	error 404 "Page not found.";
	}

	if (req.http.Accept-Encoding) {
	if (req.http.Accept-Encoding ~ "gzip") {
	set req.http.Accept-Encoding = "gzip";
	}
	else if (req.http.Accept-Encoding ~ "deflate") {
	set req.http.Accept-Encoding = "deflate";
	}
	else {
	unset req.http.Accept-Encoding;
	}
	}

	if (req.url ~ "(?i)\.(png\|gif\|jpeg\|jpg\|ico\|swf\|css\|js\|html\|htm)(\?[a-z0-9]+)?$") {
	unset req.http.Cookie;
	}

	if (req.http.Cookie) {
	set req.http.Cookie = ";" + req.http.Cookie;
	set req.http.Cookie = regsuball(req.http.Cookie, "; +", ";");
	set req.http.Cookie = regsuball(req.http.Cookie, ";(SESS[a-z0-9]+\|NO_CACHE)=", "; \1=");
	set req.http.Cookie = regsuball(req.http.Cookie, ";[^ ][^;]*", "");
	set req.http.Cookie = regsuball(req.http.Cookie, "^[; ]+\|[; ]+$", "");

	if (req.http.Cookie == "") {
	unset req.http.Cookie;
	}
	else {
	return (pass);
	}
	}
	}

	sub vcl_hash {
	# Include cookie in cache hash.
	# This check is unnecessary because we already pass on all cookies.
	# if (req.http.Cookie) {
	# set req.hash += req.http.Cookie;
	# }
	}

	sub vcl_fetch {
	if (req.url ~ "(?i)\.(png\|gif\|jpeg\|jpg\|ico\|swf\|css\|js\|html\|htm)(\?[a-z0-9]+)?$") {
	unset beresp.http.set-cookie;
	}

	set beresp.grace = 6h;
	}

	sub vcl_error {

	#if (req.url ~ "^/?$") {
	# set obj.status = 302;
	# set obj.http.Location = "http://www2.drupalsite.com/";
	#}

	set obj.http.Content-Type = "text/html; charset=utf-8";
	synthetic {"
	<html>
	<head>
	<title>Page Unavailable</title>
	<style>
	body { background: #53B1EA; text-align: center; color: white; }
	#page { border: 1px solid #CCC; width: 500px; margin: 100px auto 0; padding: 30px; }
	a, a:link, a:visited { color: #CCC; }
	.error { color: #222; }
	</style>
	</head>
	<body onload="setTimeout(function() { window.location = '/' }, 5000)">
	<div id="page">
	<h1 class="title">Page Unavailable</h1>
	<p>The page you requested is temporarily unavailable.</p>
	<p>We're redirecting you to the <a href="/">homepage</a> in 5 seconds.</p>
	<div class="error">(Error "} + obj.status + " " + obj.response + {")</div>
	</div>
	</body>
	</html>
	"};
	return (deliver);
	}