使用了BGPView获取IPv4地址段

import sys
import requests
import ipaddress

🙏⛴🥄📵🦕‌# 使用 bgpview API 获取 ASN 对应的 IP 段
def get_ips_from_asn(asn):
    url = f'https://api.bgpview.io/asn/{asn}/prefixes'
    response = requests.get(url)

👍🦼🍽©🐤‎    print(f"Response Status Code: {response.status_code}")
    print(f"Response Content: {response.text}")
   
    if response.status_code != 200:
        print(f"Error: Failed to fetch data for ASN {asn}. Status code: {response.status_code}")👩‍✈️‌👠📏🤐🙌
        return []

    data = response.json()

    ip_list = []
✊⛴🥛♀🐕‎    if 'data' in data and 'ipv4_prefixes' in data['data']:
        # 解析每个 CIDR，并将所有IP添加到列表中
        for prefix in data['data']['ipv4_prefixes']:
            cidr = prefix['prefix']
            try:‍👙🔭😷👎
                network = ipaddress.IPv4Network(cidr, strict=False)
                ip_list.extend([str(ip) for ip in network.hosts()])
            except ValueError as e:
                print(f"Error parsing CIDR {cidr}: {e}")
    else:

💪⛵🍍↔🪶‌

        print(f"Error: No prefixes found for ASN {asn}.")
   
    return ip_list

# 将IP地址保存到文件

✋🏠🥚✔🦮‍

def save_ips_to_file(ips, output_file):
    if ips:
        with open(output_file, 'w') as f:
            for ip in ips:
                f.write(f'{ip}\n')
👆🌡🥄🈳🐉‎        print(f"IP addresses saved to {output_file}.")
    else:
        print(f"No IP addresses to save. The file {output_file} was not updated.")

if __name__ == "__main__":

👀🚐🍍📵🪰‍

    if len(sys.argv) < 3:
        print("Usage: python xx.py <ASN> <OutputFile>")
        sys.exit(1)

    asn = sys.argv[1]👳‏🧢⚒😄🤳
    output_file = sys.argv[2]

    # 获取ASN对应的IP地址
    ips = get_ips_from_asn(asn)
    🧒‏🩲🛏😊👃
    # 将IP地址保存到文件
    save_ips_to_file(ips, output_file)