class Faye::EventSource

def self.determine_url(env)
  secure = if env.has_key?('HTTP_X_FORWARDED_PROTO')
             env['HTTP_X_FORWARDED_PROTO'] == 'https'
           else
             env['HTTP_ORIGIN'] =~ /^https:/i
           end
  
  scheme = secure ? 'https:' : 'http:'
  "#{ scheme }//#{ env['HTTP_HOST'] }#{ env['REQUEST_URI'] }"
end