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# (c) 2012, Jan-Piet Mens <jpmens(at)gmail.com>
#
# This file is part of Ansible
#
# Ansible is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Ansible is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
from __future__ import (absolute_import, division, print_function)
__metaclass__ = type
HAVE_DNS=False
try:
import dns.resolver
from dns.exception import DNSException
HAVE_DNS=True
except ImportError:
pass
from ansible.errors import AnsibleError
from ansible.plugins.lookup import LookupBase
# ==============================================================
# DNSTXT: DNS TXT records
#
# key=domainname
# TODO: configurable resolver IPs
# --------------------------------------------------------------
class LookupModule(LookupBase):
def run(self, terms, variables=None, **kwargs):
if HAVE_DNS is False:
raise AnsibleError("Can't LOOKUP(dnstxt): module dns.resolver is not installed")
ret = []
for term in terms:
domain = term.split()[0]
string = []
try:
answers = dns.resolver.query(domain, 'TXT')
for rdata in answers:
s = rdata.to_text()
string.append(s[1:-1]) # Strip outside quotes on TXT rdata
except dns.resolver.NXDOMAIN:
string = 'NXDOMAIN'
except dns.resolver.Timeout:
string = ''
except DNSException as e:
raise AnsibleError("dns.resolver unhandled exception", e)
ret.append(''.join(string))
return ret
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