定期获取IP网段

这里小编写了shell脚本并且结合crontab定期获取IP网段列表并写入Redis

编写shell脚本获取IP断列表并写入redis中, 保存文件为shell.sh

!#/bin/bash
curl 'http://ftp.apnic.net/apnic/stats/apnic/delegated-apnic-latest' | grep ipv4 | grep CN | awk -F\| '{ printf("%s/%d\n", $4, 32-log($5)/log(2)) }' > /china_ip.txt

cat '/china_ip.txt' |while read p
  do
    redis-cli -h 127.0.0.1 -p 6379 hset "china_ip" $p $p >/dev/null
  done

在crontab 加上以下命令 (每天00:00自动更新脚本)
1
00 00 * * * /data/shell.sh

使用函数判断指定IP是否存在指定网段中（Laravel框架）

/**
 * Class Sms
 * @package App\Http\Services\Common
 * @Author YiYuan-LIn
 * @Date: 2019/2/28
 * 校验IP工具类
 */
class VerifyIp
{
    /**
     * @Author YiYuan-LIn
     * @Date: 2019/8/10
     * @enumeration:
     * @param $ip
     * @return bool
     * @description 校验IP是否处于国内的网段
     */
    public static function CheckWhetherIPIsDomestic($ip)
    {
        //校验IP参数是否合法
        if (empty($ip)) return false;
        if(filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4)) return false;
        $ip = (double) (sprintf("%u", ip2long($ip)));
        $china_ip = Redis::hkeys('china_ip');
        $china_ip = array_filter($china_ip);
        if (empty($china_ip)) return false;

        foreach ($china_ip as $key => $value) {
            $s = explode('/', $value);
            $network_start = (double) (sprintf("%u", ip2long($s[0])));
            $network_len = pow(2, 32 - $s[1]);
            $network_end = $network_start + $network_len - 1;

            if ($ip >= $network_start && $ip <= $network_end) return true;
            continue ;
        }

        return false;
    }
}