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87c23ba029
Adding module that allows to work with IPA DNS system records: * getting system records * updating system records * work with DNS locations https://fedorahosted.org/freeipa/ticket/2008 Reviewed-By: Petr Spacek <pspacek@redhat.com> Reviewed-By: Jan Cholasta <jcholast@redhat.com>
103 lines
3.1 KiB
Python
103 lines
3.1 KiB
Python
# Authors:
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# Martin Kosek <mkosek@redhat.com>
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# Pavel Zuna <pzuna@redhat.com>
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#
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# Copyright (C) 2010 Red Hat
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# see file 'COPYING' for use and warranty information
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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from __future__ import absolute_import
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import re
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from ipalib import errors
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# dnsrecord param name formats
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record_name_format = '%srecord'
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def get_record_rrtype(name):
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match = re.match('([^_]+)record$', name)
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if match is None:
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return None
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return match.group(1).upper()
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def has_cli_options(cmd, options, no_option_msg, allow_empty_attrs=False):
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sufficient = ('setattr', 'addattr', 'delattr', 'rename')
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if any(k in options for k in sufficient):
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return
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has_options = False
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for attr in options.keys():
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obj_params = [
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p.name for p in cmd.params()
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if get_record_rrtype(p.name) or 'dnsrecord_part' in p.flags]
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if attr in obj_params:
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if options[attr] or allow_empty_attrs:
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has_options = True
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break
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if not has_options:
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raise errors.OptionError(no_option_msg)
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def get_rrparam_from_part(cmd, part_name):
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"""
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Get an instance of DNSRecord parameter that has part_name as its part.
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If such parameter is not found, None is returned
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:param part_name Part parameter name
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"""
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try:
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param = cmd.params[part_name]
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if not any(flag in param.flags for flag in
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('dnsrecord_part', 'dnsrecord_extra')):
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return None
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# All DNS record part or extra parameters contain a name of its
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# parent RR parameter in its hint attribute
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rrparam = cmd.params[param.hint]
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except (KeyError, AttributeError):
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return None
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return rrparam
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def iterate_rrparams_by_parts(cmd, kw, skip_extra=False):
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"""
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Iterates through all DNSRecord instances that has at least one of its
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parts or extra options in given dictionary. It returns the DNSRecord
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instance only for the first occurence of part/extra option.
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:param kw Dictionary with DNS record parts or extra options
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:param skip_extra Skip DNS record extra options, yield only DNS records
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with a real record part
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"""
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processed = []
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for opt in kw:
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rrparam = get_rrparam_from_part(cmd, opt)
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if rrparam is None:
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continue
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if skip_extra and 'dnsrecord_extra' in cmd.params[opt].flags:
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continue
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if rrparam.name not in processed:
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processed.append(rrparam.name)
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yield rrparam
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