import socket
import re

def verify_bingbot(ip_address):
try:
# 反向DNS查询
hostname = socket.gethostbyaddr(ip_address)[0]

# 检查是否匹配Bing的域名模式
bing_patterns = [
r'\.msn\.com$',
r'\.search\.msn\.com$',
r'\.bing\.com$',
r'\.microsoftonline\.com$'
]

is_bing_domain = any(re.search(pattern, hostname) for pattern in bing_patterns)

if is_bing_domain:
# 正向DNS查询验证
forward_ip = socket.gethostbyname(hostname)
if forward_ip == ip_address:
return True, f"验证成功: {ip_address} 是Bing爬虫IP (hostname: {hostname})"
else:
return False, f"验证失败: 正向DNS查询不匹配 ({forward_ip} != {ip_address})"
else:
return False, f"验证失败: 主机名不匹配Bing模式 (hostname: {hostname})"

except socket.herror:
return False, "验证失败: 无法解析主机名"
except Exception as e:
return False, f"验证失败: {str(e)}"

# 使用示例
test_ip = "40.77.167.72" # 这是一个示例IP
result, message = verify_bingbot(test_ip)
print(message)