Redirect rule that keeps connection mode (HTTPS | HTTP) in Lighttpd - redirect

Question

I have a redirect rule so every request will be forced to have www. before them, the problem is that if someone connects through https:// they are redirect to http:// because I don't know what command should I use to difference between them. THis is the rule:
var.mdomain = "mydomain.com"
var.mdomainregexredir = "^mydomain\.com$"
$HTTP["host"] =~ var.mdomainregexredir {
server_name = var.mdomain
url.redirect = ( "^/(.*)" => "http://www." + var.mdomain + "/$1" )
}
If possible, I want to know if there's a way to use only one redirect rule, I mean, I don't like to add 2 url.redirect, one inside http and another inside https, I want it to be like this (Simplified):
url.redirect = ( "^/(.*)" => (isHttps?"https":"http") + "://www." + var.mdomain + "/$1" )

Answer 1

What you'll need is this:
$HTTP["host"] =~ var.mdomainregexredir {
$HTTP["scheme"] =~ ".*" { # catch http and https
# %0 references the above matched pattern (http or https)
# also changed to just catch the whole path and redirect using it with $0
url.redirect = ( ".*" => "%0://www.varmdomain$0" )
}
}
Unless you have a compelling reason, I'd be redirecting everything to https. You can do the https and www redirects all as one too.