def delete_ns_rrs_from_parent(view, parent_view, user):
'''Delete subzone NS rrs from parent_view'''
for rr in RR.query.filter(RR.zoneview_id == parent_view.id).filter(RR.name == view.zone.name + '.')\
.filter(RR.type == 'NS'):
Messages.info("Deleting RR %s from %s" %
(rr.bind_str(relative=True), rr.view))
delete_single_rr(rr, user)
def free_ipblocks(ipblocks):
freed_ipblocks = Ipblock.query.outerjoin(RR, Ipblock.id == RR.ipblock_id)\
.filter(Ipblock.id.in_(ipblocks)).group_by(*Ipblock.__table__.columns).having(func.count(RR.id) == 0)
for ipblock in freed_ipblocks:
Messages.info('Freeing IP %s from layer3domain %s' %
(ipblock, ipblock.layer3domain.name))
db.session.delete(ipblock)
def wrapped(*args, **kwargs):
Messages.save()
for i in range(attempts):
if i > 0:
Messages.restore()
try:
return f(*args, **kwargs)
except OperationalError as e:
if i == (attempts - 1) or all(msg not in e.message
for msg in lock_messages_error):
raise
logging.info('Error processing transaction: %s. Retrying', e)
def wrapper(*args, **kwargs):
start = time.time()
name = "%s(%s)" % (f.__name__, ', '.join(
[safe_repr(a) for a in args] +
["%s=%s" % (k, safe_repr(v)) for k, v in list(kwargs.items())]))
try:
Messages.clear()
g.tid = uuid.uuid4().hex[16:]
logging.info("%s called %s", get_session_username(), name)
return f(*args, **kwargs)
finally:
logging.info("%.3lf for %s", time.time() - start, name)
def get_rr_zone(name, zone, profile, notfound_message=True):
if zone is None:
if not name.endswith('.'):
raise InvalidParameterError('Name must be a FQDN')
zone = Zone.find(name)
if zone is None:
if notfound_message:
Messages.info('No zone found for %s' % name)
return None
else:
zone = get_zone(zone, profile)
if name.endswith('.') and (not name.endswith('.' + zone.name + '.') and name != zone.name + '.'):
raise InvalidParameterError('RR name %s not in zone %s' % (name, zone.name))
return zone
def f(self, key, value):
try:
value = int(value)
except:
value = value.upper()
if type(value) == int:
if reserved and value in reserved:
raise InvalidParameterError("Invalid %s: %s" % (key, value))
if value not in enum.values():
Messages.warn('%s value %s is unassigned' % (key, value))
return validate_uint8(self, key, value)
else:
if value in enum:
return enum[value]
else:
raise InvalidParameterError("Invalid %s: %s" % (key, value))
def delete_with_references(query, free_ips, references, user):
if references not in ('warn', 'error', 'delete', 'ignore'):
raise InvalidParameterError(
'Invalid value for references (must be warn, error, delete or ignore)'
)
rrs = query.all()
if free_ips:
ipblocks = set()
to_delete = set()
done = False
while rrs and not done:
to_delete |= set(rrs)
orphaned = set() # RRs orphaned by deleting rrs
forward_reverse = set() # forward or reverse RRs corresponding to rrs
for rr in rrs:
for orr in orphaned_references(rr, to_delete).all():
if (rr.type == 'PTR' and orr.type in ('A', 'AAAA')) or \
(rr.type in ('A', 'AAAA') and orr.type == 'PTR'):
if references != 'ignore':
forward_reverse.add(orr)
elif orr not in rrs:
orphaned.add(orr)
if references in ('warn', 'error', 'ignore'):
for rr in orphaned:
logging.debug('%s referenced by:\n%s' % (rr.target, rr))
for rr_target in set(rr.target for rr in orphaned):
if references == 'warn':
Messages.warn('%s is referenced by other records' %
rr_target)
elif references == 'error':
raise DimError('%s is referenced by other records' %
rr_target)
done = True
rrs = (orphaned | forward_reverse) - to_delete
to_delete |= forward_reverse
for rr in sorted(to_delete,
key=lambda rr:
(rr.type, rr.name, rr.target, rr.value, rr.id)):
Messages.info("Deleting RR %s from %s" %
(rr.bind_str(relative=True), rr.view))
if free_ips and rr.ipblock_id:
ipblocks.add(rr.ipblock_id)
delete_single_rr(rr, user)
if free_ips and ipblocks:
free_ipblocks(ipblocks)
def validate_strings(self, key, value):
if isinstance(value, basestring):
strings = _parse_strings(value)
elif isinstance(value, list):
strings = map(lambda v: _unescapify(v), value)
else:
raise ValueError('%s must be either a string or a list of strings' %
key)
# Split strings longer than 255
split_strings = []
splits = 0
for s in strings:
while len(s) > 255:
splits += 1
split_strings.append(s[:255])
s = s[255:]
if s:
split_strings.append(s)
if splits:
Messages.warn(
'A TXT record string was longer than 255 characters, it was automatically divided.'
)
return ' '.join('"' + dns.rdata._escapify(s) + '"' for s in split_strings)
def create_subzone(new_zone, parent_zone, from_profile, soa_attributes, user,
inherit_rights=True, inherit_zone_groups=True):
'''
Create views and move rrs from parent zone.
Records from the parent zones have priority over the ones from the profile.
Copy @ NS records from subzone to parent zone.
If inherit_rights is True, inherit user rights from parent zone.
If inherit_zone_groups is True, inherit zone-group membership from parent zone. No zone-group rights are checked.
This is necessary so net_admins can create subnets without access to the zone-group
where the parent reverse zone is a member.
If inherit_owner is True, inherit the owner from parent zone.
'''
# map parent view id to child view
view_id_map = {}
parent_views_ids = [view.id for view in parent_zone.views]
for view in parent_zone.views:
view_id_map[view.id] = ZoneView.create(new_zone, view.name,
from_profile=from_profile, soa_attributes=soa_attributes, copy_rrs=False)
Messages.info('Creating views %s for zone %s' % (', '.join([view.name for view in new_zone.views]), new_zone.name))
for rr in RR.query.filter(RR.zoneview_id.in_(parent_views_ids))\
.filter(or_(RR.name.endswith('.' + new_zone.name + '.'),
RR.name == new_zone.name + '.')):
view_msg = (' view ' + rr.view.name) if len(parent_zone.views) > 1 else ''
msg_info = (rr.bind_str(relative=True),
new_zone.name + view_msg,
parent_zone.name + view_msg)
rr.notify_delete()
rr.view = view_id_map[rr.zoneview_id]
rr.value = RR.get_class(rr.type).fqdn_target(rr.value, parent_zone.name)
try:
check_new_rr(rr)
Messages.info('Moving RR %s in zone %s from zone %s' % msg_info)
rr.notify_insert()
except InvalidParameterError:
db.session.delete(rr)
Messages.warn('Rejected to move RR %s in zone %s, deleted RR from zone %s' % msg_info)
if from_profile is not None:
for view in new_zone.views:
apply_profile(view, new_zone, from_profile)
for parent_view in parent_zone.views:
if inherit_zone_groups:
for group in parent_view.groups:
zone_group_add_zone(group, new_zone, view_id_map[parent_view.id])
if inherit_rights:
rights = AccessRight.query.filter_by(object_class='ZoneView', object_id=parent_view.id).all()
for right in rights:
for group in right.groups:
group.rights.add(AccessRight.find_or_create(access=right.access,
object_id=view_id_map[parent_view.id].id,
object_class=right.object_class))
def create_single_rr(name,
rr_type,
zone,
view,
user,
overwrite=False,
**kwargs):
'''
:type zone: Zone
:type view: string
:param view: name of the view
:param rr_type: RR type (string)
:return: True if the record was created or already existed
'''
view = get_view(zone, view)
existed = False
created = True
name = make_fqdn(name, view.zone.name)
rr_query = RR.query.filter(RR.name == name).filter(RR.type == rr_type)\
.join(ZoneView).filter(RR.view == view)
new_rr = RR.create(name=name, type=rr_type, view=view, **kwargs)
rrs = rr_query.all()
if rrs:
if overwrite:
for rr in rrs:
Messages.warn("Deleting RR %s from %s" %
(rr.bind_str(relative=True), rr.view))
delete_single_rr(rr, user)
else:
samerr = None
for rr in rrs:
if rr.value == new_rr.value and (rr.type not in (
'A', 'AAAA', 'PTR') or rr.ipblock == new_rr.ipblock):
samerr = rr
break
if samerr:
created = False
existed = True
Messages.info("%s already exists" % samerr)
else:
if rr_type == 'PTR': # Don't allow PTR round robin records
created = False
Messages.warn("Not overwriting: %s" % rrs[0])
else:
Messages.warn(
"The name %s already existed, creating round robin record"
% name)
if created:
if rr_type == 'RP':
point_to = _same_view_or_different_zone(new_rr).filter(
RR.name == new_rr.target)
if point_to.filter(RR.type == 'TXT').count() == 0:
Messages.warn('TXT Record %s not found' % (new_rr.target, ))
elif rr_type == 'SSHFP':
same_name = _same_view_or_different_zone(new_rr).filter(
RR.name == new_rr.name)
if same_name.filter(or_(RR.type == 'A',
RR.type == 'AAAA')).count() == 0:
Messages.warn('No A or AAAA found for %s' % (new_rr.name, ))
check_new_rr(new_rr)
Messages.info("Creating RR {rr}{comment_msg} in {view_msg}".format(
rr=new_rr.bind_str(relative=True),
comment_msg=' comment {0}'.format(kwargs['comment']) if kwargs.get(
'comment', None) else '',
view_msg=new_rr.view))
if new_rr.target and rr_type not in ['PTR', 'RP']:
# Creating a PTR record also creates the A/AAAA record
if _same_view_or_different_zone(new_rr).filter(
RR.name == new_rr.target).count() == 0:
Messages.warn('%s does not exist.' % new_rr.target)
new_rr.insert()
return created or existed
