粗放的监测代理是否有效~~

gistfile1.rb

# 未知的
unkown_list = [
  "219.130.39.9:3128", 
  "122.225.22.22:8080", 
  "202.103.215.199:80", 
  "59.46.173.75:80", 
  "218.23.49.155:80", 
  "218.76.157.98:8001", 
  "218.84.126.82:3128"
]

# 无效的
fail_list = []
# 有效的
proxy_list = []

# 通过访问天猫测试
def test_proxy(proxy)
  body = Nestful.get 'http://err.tmall.com/error1.html', proxy: "http://#{proxy}", timeout: 15
  if body
    body = body.force_encoding("GBK").encode("UTF-8")
    if body.match('很抱歉，您查看的页面找不到了！')
      return proxy # 有效
    end
  end
  return nil
rescue Nestful::TimeoutError, Nestful::ResourceNotFound, Errno::ECONNREFUSED, EOFError
  return nil
end

# 遍历
unkown_list.each do |proxy|
  proxyer = test_proxy(proxy)
  if proxyer
    proxy_list << proxyer 
  else # 无效
    fail_list  << proxy 
  end
end

puts proxy_list