gistfile1.builder

  def create_wiki_token(user, expires)
    doku_data = {
      :user => user.name, 
      :email => user.email, 
      :groups => user.wiki_groups, 
      :expires => expires.to_i
    }
    doku_data = Base64.encode64(doku_data.to_json)
    secret = Rails.application.config.cookie_secret
    doku_digest = OpenSSL::HMAC.hexdigest(OpenSSL::Digest.const_get("SHA1").new, secret, doku_data)
    cookies[:wiki] = {
      :value => "#{doku_data}--#{doku_digest}", 
      :expires => expires
    }
  end