python - 如何在 Python 中解析 SRV 记录？

Question

不依赖本机库的东西会更好。

Answer 1

你可以试试 dnspython 库：

• http://www.dnspython.org/examples.html
• http://www.dnspython.org/docs/1.7.1/html/dns.rdtypes.IN.SRV.SRV-class.html

Answer 2

twisted具有出色的纯 python 实现，请参阅twisted.names源代码（尤其是dns.py）。如果您不能使用他们的所有代码，也许您可​​以Record_SRV从该文件中提取并重新利用他们的类。

Answer 3

使用dnspython：

>>> import dns.resolver
>>> domain='jabberzac.org'
>>> srvInfo = {}
>>> srv_records=dns.resolver.query('_xmpp-client._tcp.'+domain, 'SRV')
>>> for srv in srv_records:
...     srvInfo['weight']   = srv.weight
...     srvInfo['host']     = str(srv.target).rstrip('.')
...     srvInfo['priority'] = srv.priority
...     srvInfo['port']     = srv.port
... 
>>> print srvInfo
{'priority': 0, 'host': 'xmpp.jabberzac.org', 'port': 5222, 'weight': 0}

Answer 4

使用pydns：

import DNS
DNS.ParseResolvConf()
srv_req = DNS.Request(qtype = 'srv')
srv_result = srv_req.req('_ldap._tcp.example.org')

for result in srv_result.answers:
    if result['typename'] == 'SRV':
        print result['data']