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93 lines
2.6 KiB
Python
93 lines
2.6 KiB
Python
# (c) 2012, Jan-Piet Mens <jpmens(at)gmail.com>
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# (c) 2017 Ansible Project
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# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
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from __future__ import (absolute_import, division, print_function)
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__metaclass__ = type
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DOCUMENTATION = """
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lookup: dnstxt
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author: Jan-Piet Mens (@jpmens) <jpmens(at)gmail.com>
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version_added: "0.9"
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short_description: query a domain(s)'s DNS txt fields
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requirements:
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- dns/dns.resolver (python library)
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description:
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- Uses a python library to return the DNS TXT record for a domain.
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options:
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_terms:
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description: domain or list of domains to query TXT records from
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required: True
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type: list
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"""
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EXAMPLES = """
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- name: show txt entry
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debug: msg="{{lookup('dnstxt', ['test.example.com'])}}"
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- name: iterate over txt entries
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debug: msg="{{item}}"
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with_dnstxt:
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- 'test.example.com'
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- 'other.example.com'
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- 'last.example.com'
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- name: iterate of a comma delimited DNS TXT entry
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debug: msg="{{item}}"
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with_dnstxt: "{{lookup('dnstxt', ['test.example.com']).split(',')}}"
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"""
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RETURN = """
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_list:
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description:
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- values returned by the DNS TXT record.
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type: list
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"""
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HAVE_DNS = False
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try:
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import dns.resolver
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from dns.exception import DNSException
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HAVE_DNS = True
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except ImportError:
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pass
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from ansible.errors import AnsibleError
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from ansible.module_utils._text import to_native
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from ansible.plugins.lookup import LookupBase
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# ==============================================================
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# DNSTXT: DNS TXT records
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#
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# key=domainname
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# TODO: configurable resolver IPs
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# --------------------------------------------------------------
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class LookupModule(LookupBase):
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def run(self, terms, variables=None, **kwargs):
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if HAVE_DNS is False:
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raise AnsibleError("Can't LOOKUP(dnstxt): module dns.resolver is not installed")
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ret = []
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for term in terms:
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domain = term.split()[0]
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string = []
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try:
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answers = dns.resolver.query(domain, 'TXT')
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for rdata in answers:
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s = rdata.to_text()
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string.append(s[1:-1]) # Strip outside quotes on TXT rdata
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except dns.resolver.NXDOMAIN:
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string = 'NXDOMAIN'
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except dns.resolver.Timeout:
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string = ''
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except DNSException as e:
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raise AnsibleError("dns.resolver unhandled exception %s" % to_native(e))
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ret.append(''.join(string))
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return ret
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