if (not lighty.stat(lighty.env["physical.path"])) then
  if (string.match(lighty.env["uri.path"], "^(/?[^/]*/)files/$")) then
    lighty.env["physical.rel-path"] = "index.php"
  else
    n, a = string.match(lighty.env["uri.path"], "^(/?[^/]*/)files/(.+)")
    if a then
      lighty.env["physical.rel-path"] = "wp-content/blogs.php"
      lighty.env["uri.query"] = "file=" .. a
    else
      n, a = string.match(lighty.env["uri.path"], "^(/?[^/]*/)(wp-.*)")
      if a then
        lighty.env["physical.rel-path"] = a;
      else
        n, a = string.match(lighty.env["uri.path"], "^(/?[^/]*/)(.*\.php)$")
        if a then
          lighty.env["physical.rel-path"] = a
        else
          lighty.env["physical.rel-path"] = "index.php"
        end
      end
    end
  end
  lighty.env["physical.path"] = lighty.env["physical.doc-root"] .. lighty.env["physical.rel-path"]
end