class RailsSlbMiddleware

Constants

VERSION

Public Class Methods

new(app, force_rewrite_https = true) click to toggle source

# File lib/rails_slb_middleware.rb, line 5
def initialize(app, force_rewrite_https = true)
  @app = app
  @force_rewrite_https = force_rewrite_https
end

Public Instance Methods

call(env) click to toggle source

# File lib/rails_slb_middleware.rb, line 10
def call(env)
  req = Rack::Request.new(env)

  if req.path == "/ping"
    return [200, {"Content-Type" => "text/plain"}, ["PONG"]]
  end

  if @force_rewrite_https && req.get_header("HTTP_X_FORWARDED_PROTO") == "http"
    return [301, {"Location" => req.url.gsub(/^http/, "https"), "Strict-Transport-Security" => "max-age=31536000"}, []]
  end

  @app.call(req.env)
end