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f5a04da95d
The command description is taken from python docstring. Thus commands should have them and should include the callings of gettext to be translated. Reviewed-By: Christian Heimes <cheimes@redhat.com>
509 lines
18 KiB
Python
509 lines
18 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 print_function
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import six
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import copy
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import re
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from ipaclient.frontend import MethodOverride
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from ipalib import errors
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from ipalib.dns import (get_record_rrtype,
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has_cli_options,
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iterate_rrparams_by_parts,
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part_name_format,
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record_name_format)
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from ipalib.frontend import Command
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from ipalib.parameters import Bool, Str
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from ipalib.plugable import Registry
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from ipalib import _, ngettext
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from ipalib import util
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from ipapython.dnsutil import DNSName
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if six.PY3:
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unicode = str
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register = Registry()
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# most used record types, always ask for those in interactive prompt
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_top_record_types = ('A', 'AAAA', )
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_rev_top_record_types = ('PTR', )
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_zone_top_record_types = ('NS', 'MX', 'LOC', )
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def __get_part_param(rrtype, cmd, part, output_kw, default=None):
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name = part_name_format % (rrtype.lower(), part.name)
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label = unicode(cmd.params[name].label)
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optional = not part.required
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output_kw[name] = cmd.prompt_param(part,
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optional=optional,
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label=label)
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def prompt_parts(rrtype, cmd, mod_dnsvalue=None):
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mod_parts = None
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if mod_dnsvalue is not None:
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name = record_name_format % unicode(rrtype.lower())
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mod_parts = cmd.api.Command.dnsrecord_split_parts(
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name, mod_dnsvalue)['result']
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user_options = {}
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try:
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rrobj = cmd.api.Object['dns{}record'.format(rrtype.lower())]
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except KeyError:
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return user_options
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for part_id, part in enumerate(rrobj.params()):
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name = part_name_format % (rrtype.lower(), part.name)
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if name not in cmd.params:
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continue
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if mod_parts:
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default = mod_parts[part_id]
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else:
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default = None
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__get_part_param(rrtype, cmd, part, user_options, default)
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return user_options
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def prompt_missing_parts(rrtype, cmd, kw, prompt_optional=False):
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user_options = {}
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try:
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rrobj = cmd.api.Object['dns{}record'.format(rrtype.lower())]
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except KeyError:
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return user_options
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for part in rrobj.params():
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name = part_name_format % (rrtype.lower(), part.name)
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if name not in cmd.params:
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continue
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if name in kw:
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continue
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optional = not part.required
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if optional and not prompt_optional:
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continue
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default = part.get_default(**kw)
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__get_part_param(rrtype, cmd, part, user_options, default)
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return user_options
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class DNSZoneMethodOverride(MethodOverride):
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def get_options(self):
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for option in super(DNSZoneMethodOverride, self).get_options():
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if option.name == 'idnsallowdynupdate':
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option = option.clone_retype(option.name, Bool)
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yield option
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@register(override=True, no_fail=True)
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class dnszone_add(DNSZoneMethodOverride):
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pass
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@register(override=True, no_fail=True)
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class dnszone_mod(DNSZoneMethodOverride):
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pass
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# Support old servers without dnsrecord_split_parts
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# Do not add anything new here!
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@register(no_fail=True)
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class dnsrecord_split_parts(Command):
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__doc__ = _('Split DNS record to parts')
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NO_CLI = True
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takes_args = (
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Str('name'),
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Str('value'),
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)
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def execute(self, name, value, *args, **options):
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def split_exactly(count):
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values = value.split()
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if len(values) != count:
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return None
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return tuple(values)
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result = ()
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rrtype = get_record_rrtype(name)
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if rrtype in ('A', 'AAAA', 'CNAME', 'DNAME', 'NS', 'PTR'):
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result = split_exactly(1)
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elif rrtype in ('AFSDB', 'KX', 'MX'):
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result = split_exactly(2)
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elif rrtype in ('CERT', 'DLV', 'DS', 'SRV', 'TLSA'):
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result = split_exactly(4)
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elif rrtype in ('NAPTR'):
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result = split_exactly(6)
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elif rrtype in ('A6', 'TXT'):
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result = (value,)
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elif rrtype == 'LOC':
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regex = re.compile(
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r'(?P<d1>\d{1,2}\s+)'
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r'(?:(?P<m1>\d{1,2}\s+)'
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r'(?P<s1>\d{1,2}(?:\.\d{1,3})?\s+)?)?'
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r'(?P<dir1>[NS])\s+'
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r'(?P<d2>\d{1,3}\s+)'
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r'(?:(?P<m2>\d{1,2}\s+)'
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r'(?P<s2>\d{1,2}(?:\.\d{1,3})?\s+)?)?'
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r'(?P<dir2>[WE])\s+'
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r'(?P<alt>-?\d{1,8}(?:\.\d{1,2})?)m?'
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r'(?:\s+(?P<siz>\d{1,8}(?:\.\d{1,2})?)m?'
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r'(?:\s+(?P<hp>\d{1,8}(?:\.\d{1,2})?)m?'
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r'(?:\s+(?P<vp>\d{1,8}(?:\.\d{1,2})?)m?\s*)?)?)?$')
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m = regex.match(value)
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if m is not None:
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result = tuple(
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x.strip() if x is not None else x for x in m.groups())
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elif rrtype == 'SSHFP':
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values = value.split(None, 2)
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if len(values) == 3:
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result = tuple(values)
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return dict(result=result)
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@register(override=True, no_fail=True)
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class dnsrecord_add(MethodOverride):
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no_option_msg = 'No options to add a specific record provided.\n' \
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"Command help may be consulted for all supported record types."
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def interactive_prompt_callback(self, kw):
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try:
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has_cli_options(self, kw, self.no_option_msg)
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# Some DNS records were entered, do not use full interactive help
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# We should still ask user for required parts of DNS parts he is
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# trying to add in the same way we do for standard LDAP parameters
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#
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# Do not ask for required parts when any "extra" option is used,
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# it can be used to fill all required params by itself
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new_kw = {}
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for rrparam in iterate_rrparams_by_parts(self, kw,
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skip_extra=True):
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rrtype = get_record_rrtype(rrparam.name)
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user_options = prompt_missing_parts(rrtype, self, kw,
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prompt_optional=False)
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new_kw.update(user_options)
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kw.update(new_kw)
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return
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except errors.OptionError:
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pass
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try:
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idnsname = DNSName(kw['idnsname'])
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except Exception as e:
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raise errors.ValidationError(name='idnsname', error=unicode(e))
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try:
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zonename = DNSName(kw['dnszoneidnsname'])
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except Exception as e:
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raise errors.ValidationError(name='dnszoneidnsname', error=unicode(e))
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# check zone type
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if idnsname.is_empty():
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common_types = u', '.join(_zone_top_record_types)
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elif zonename.is_reverse():
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common_types = u', '.join(_rev_top_record_types)
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else:
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common_types = u', '.join(_top_record_types)
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self.Backend.textui.print_plain(_(u'Please choose a type of DNS resource record to be added'))
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self.Backend.textui.print_plain(_(u'The most common types for this type of zone are: %s\n') %\
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common_types)
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ok = False
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while not ok:
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rrtype = self.Backend.textui.prompt(_(u'DNS resource record type'))
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if rrtype is None:
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return
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rrtype = rrtype.upper()
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try:
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name = record_name_format % rrtype.lower()
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param = self.params[name]
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if 'no_option' in param.flags:
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raise ValueError()
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except (KeyError, ValueError):
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all_types = u', '.join(get_record_rrtype(p.name)
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for p in self.params()
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if (get_record_rrtype(p.name) and
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'no_option' not in p.flags))
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self.Backend.textui.print_plain(_(u'Invalid or unsupported type. Allowed values are: %s') % all_types)
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continue
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ok = True
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user_options = prompt_parts(rrtype, self)
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kw.update(user_options)
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@register(override=True, no_fail=True)
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class dnsrecord_mod(MethodOverride):
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no_option_msg = 'No options to modify a specific record provided.'
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def interactive_prompt_callback(self, kw):
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try:
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has_cli_options(self, kw, self.no_option_msg, True)
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except errors.OptionError:
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pass
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else:
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# some record type entered, skip this helper
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return
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# get DNS record first so that the NotFound exception is raised
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# before the helper would start
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dns_record = self.api.Command['dnsrecord_show'](kw['dnszoneidnsname'], kw['idnsname'])['result']
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self.Backend.textui.print_plain(_("No option to modify specific record provided."))
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# ask user for records to be removed
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self.Backend.textui.print_plain(_(u'Current DNS record contents:\n'))
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record_params = []
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for attr in dns_record:
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try:
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param = self.params[attr]
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except KeyError:
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continue
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rrtype = get_record_rrtype(param.name)
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if not rrtype:
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continue
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record_params.append((param, rrtype))
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rec_type_content = u', '.join(dns_record[param.name])
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self.Backend.textui.print_plain(u'%s: %s' % (param.label, rec_type_content))
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self.Backend.textui.print_plain(u'')
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# ask what records to remove
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for param, rrtype in record_params:
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rec_values = list(dns_record[param.name])
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for rec_value in dns_record[param.name]:
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rec_values.remove(rec_value)
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mod_value = self.Backend.textui.prompt_yesno(
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_("Modify %(name)s '%(value)s'?") % dict(name=param.label, value=rec_value), default=False)
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if mod_value is True:
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user_options = prompt_parts(rrtype, self,
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mod_dnsvalue=rec_value)
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kw[param.name] = [rec_value]
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kw.update(user_options)
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if rec_values:
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self.Backend.textui.print_plain(ngettext(
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u'%(count)d %(type)s record skipped. Only one value per DNS record type can be modified at one time.',
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u'%(count)d %(type)s records skipped. Only one value per DNS record type can be modified at one time.',
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0) % dict(count=len(rec_values), type=rrtype))
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break
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@register(override=True, no_fail=True)
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class dnsrecord_del(MethodOverride):
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no_option_msg = _('Neither --del-all nor options to delete a specific record provided.\n'\
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"Command help may be consulted for all supported record types.")
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def interactive_prompt_callback(self, kw):
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if kw.get('del_all', False):
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return
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try:
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has_cli_options(self, kw, self.no_option_msg)
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except errors.OptionError:
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pass
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else:
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# some record type entered, skip this helper
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return
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# get DNS record first so that the NotFound exception is raised
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# before the helper would start
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dns_record = self.api.Command['dnsrecord_show'](kw['dnszoneidnsname'], kw['idnsname'])['result']
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self.Backend.textui.print_plain(_("No option to delete specific record provided."))
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user_del_all = self.Backend.textui.prompt_yesno(_("Delete all?"), default=False)
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if user_del_all is True:
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kw['del_all'] = True
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return
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# ask user for records to be removed
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self.Backend.textui.print_plain(_(u'Current DNS record contents:\n'))
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present_params = []
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for attr in dns_record:
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try:
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param = self.params[attr]
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except KeyError:
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continue
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if not get_record_rrtype(param.name):
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continue
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present_params.append(param)
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rec_type_content = u', '.join(dns_record[param.name])
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self.Backend.textui.print_plain(u'%s: %s' % (param.label, rec_type_content))
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self.Backend.textui.print_plain(u'')
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# ask what records to remove
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for param in present_params:
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deleted_values = []
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for rec_value in dns_record[param.name]:
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user_del_value = self.Backend.textui.prompt_yesno(
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_("Delete %(name)s '%(value)s'?")
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% dict(name=param.label, value=rec_value), default=False)
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if user_del_value is True:
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deleted_values.append(rec_value)
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if deleted_values:
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kw[param.name] = tuple(deleted_values)
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@register(override=True, no_fail=True)
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class dnsconfig_mod(MethodOverride):
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def interactive_prompt_callback(self, kw):
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# show informative message on client side
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# server cannot send messages asynchronous
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if kw.get('idnsforwarders', False):
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self.Backend.textui.print_plain(
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_("Server will check DNS forwarder(s)."))
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self.Backend.textui.print_plain(
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_("This may take some time, please wait ..."))
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@register(override=True, no_fail=True)
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class dnsforwardzone_add(MethodOverride):
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def interactive_prompt_callback(self, kw):
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if ('idnsforwarders' not in kw and
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kw.get('idnsforwardpolicy') != u'none'):
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kw['idnsforwarders'] = self.Backend.textui.prompt(
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_(u'DNS forwarder'))
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# show informative message on client side
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# server cannot send messages asynchronous
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if kw.get('idnsforwarders', False):
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self.Backend.textui.print_plain(
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_("Server will check DNS forwarder(s)."))
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self.Backend.textui.print_plain(
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_("This may take some time, please wait ..."))
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@register(override=True, no_fail=True)
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class dnsforwardzone_mod(MethodOverride):
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def interactive_prompt_callback(self, kw):
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# show informative message on client side
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# server cannot send messages asynchronous
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if kw.get('idnsforwarders', False):
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self.Backend.textui.print_plain(
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_("Server will check DNS forwarder(s)."))
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self.Backend.textui.print_plain(
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_("This may take some time, please wait ..."))
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@register(override=True, no_fail=True)
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class dns_update_system_records(MethodOverride):
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record_groups = ('ipa_records', 'location_records')
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takes_options = (
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Str(
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'out?',
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include='cli',
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doc=_('file to store DNS records in nsupdate format')
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),
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)
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def _standard_output(self, textui, result, labels):
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"""Print output in standard format common across the other plugins"""
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for key in self.record_groups:
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if result.get(key):
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textui.print_indented(u'{}:'.format(labels[key]), indent=1)
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for val in sorted(result[key]):
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textui.print_indented(val, indent=2)
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textui.print_line(u'')
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def _nsupdate_output_file(self, out_f, result):
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"""Store data in nsupdate format in file"""
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def parse_rname_rtype(record):
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"""Get rname and rtype from textual representation of record"""
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l = record.split(' ', 4)
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return l[0], l[3]
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labels = {
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p.name: unicode(p.label) for p in self.output_params()
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}
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already_removed = set()
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for key in self.record_groups:
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if result.get(key): # process only non-empty
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out_f.write("; {}\n".format(labels[key])) # comment
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for val in sorted(result[key]):
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# delete old first
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r_name_type = parse_rname_rtype(val)
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if r_name_type not in already_removed:
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# remove it only once
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already_removed.add(r_name_type)
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out_f.write("update delete {rname} {rtype}\n".format(
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rname=r_name_type[0], rtype=r_name_type[1]
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))
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# add new
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out_f.write("update add {}\n".format(val))
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out_f.write("send\n\n")
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def forward(self, *keys, **options):
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# pop `out` before sending to server as it is only client side option
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out = options.pop('out', None)
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if out:
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util.check_writable_file(out)
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res = super(dns_update_system_records, self).forward(*keys, **options)
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if out and 'result' in res:
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try:
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with open(out, "w") as f:
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self._nsupdate_output_file(f, res['result'])
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except (OSError, IOError) as e:
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raise errors.FileError(reason=unicode(e))
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return res
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def output_for_cli(self, textui, output, *args, **options):
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output_super = copy.deepcopy(output)
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super_res = output_super.get('result', {})
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super_res.pop('ipa_records', None)
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super_res.pop('location_records', None)
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super(dns_update_system_records, self).output_for_cli(
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textui, output_super, *args, **options)
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labels = {
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p.name: unicode(p.label) for p in self.output_params()
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}
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result = output.get('result', {})
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self._standard_output(textui, result, labels)
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return int(not output['value'])
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