Authlogic：如何阻止某些IP地址註冊？

Question

在rails應用程序中使用authlogic，我想阻止某些IP地址的用戶註冊（因爲誤用）。什麼是適當的方式來做到這一點？

Answer 1

class SignupsController < ApplicationController 
    before_filter :block_ip_addresses 

    protected 

    def block_ip_addresses 
    head :unauthorized if current_ip_address == "XX.XX.XX.XX" 
    end 

    def current_ip_address 
    request.env['HTTP_X_REAL_IP'] || request.env['REMOTE_ADDR'] 
    end 
end