创建ddns动态域名解析服务器

from flask import Flask, request, jsonify
import dns.resolver
import dns.update
import dns.query
import dns.tsigkeyring

app = Flask(__name__)

# 配置DNS服务器信息
dns_server = '8.8.8.8'
dns_zone = 'example.com.'
dns_keyname = 'keyname'
dns_keysecret = 'keysecret'

@app.route('/update', methods=['POST'])
def update_dns():
    data = request.json
    ip_address = data.get('ip_address')
    hostname = data.get('hostname')

    if not ip_address or not hostname:
        return jsonify({'error': 'Missing IP address or hostname'}), 400

    keyring = dns.tsigkeyring.from_text({dns_keyname: dns_keysecret})
    update = dns.update.Update(dns_zone, keyring=keyring)
    update.replace(hostname, 300, 'A', ip_address)

    try:
        response = dns.query.tcp(update, dns_server)
        return jsonify({'status': 'success', 'message': 'DNS record updated successfully'}), 200
    except Exception as e:
        return jsonify({'error': str(e)}), 500

if __name__ == '__main__':
    app.run(host='0.0.0.0', port=5000)