def _get_host(self, host_id):
"""Helper method for getting the DnsOwner for the given host ID, which
can either be an IP address, an A record or a CName alias."""
finder = Find(self.db, self.default_zone)
tmp = host_id.split(".")
if host_id.find(":") == -1 and tmp[-1].isdigit():
# host_id is an IP
owner_id = finder.find_target_by_parsing(host_id, IP_NUMBER)
else:
owner_id = finder.find_target_by_parsing(host_id, DNS_OWNER)
# Check if it is a Cname, if so: update the owner_id
try:
cname_record = CNameRecord(self.db)
cname_record.find_by_cname_owner_id(owner_id)
owner_id = cname_record.target_owner_id
except Errors.NotFoundError:
pass
dns_owner = DnsOwner.DnsOwner(self.db)
try:
dns_owner.find(owner_id)
except Errors.NotFoundError:
raise CerebrumError('Unknown host: %s' % host_id)
return dns_owner
def _get_host(self, host_id):
"""Helper method for getting the DnsOwner for the given host ID, which
can either be an IP address, an A record or a CName alias."""
finder = Find(self.db, self.default_zone)
tmp = host_id.split(".")
if host_id.find(":") == -1 and tmp[-1].isdigit():
# host_id is an IP
owner_id = finder.find_target_by_parsing(host_id, IP_NUMBER)
else:
owner_id = finder.find_target_by_parsing(host_id, DNS_OWNER)
# Check if it is a Cname, if so: update the owner_id
try:
cname_record = CNameRecord(self.db)
cname_record.find_by_cname_owner_id(owner_id)
owner_id = cname_record.target_owner_id
except Errors.NotFoundError:
pass
dns_owner = DnsOwner.DnsOwner(self.db)
try:
dns_owner.find(owner_id)
except Errors.NotFoundError:
raise CerebrumError('Unknown host: %r' % host_id)
return dns_owner
def has_adresses_in_use(self):
"""Check whether or not there are any IPs in use on this subnet.
Return 'True' if there are.
"""
# Need to import Utils here, since Utils imports this module,
# and we cannot have circular module dependencies.
from Cerebrum.modules.dns.Utils import Find
default_zone = self.const.DnsZone(
getattr(cereconf, 'DNS_DEFAULT_ZONE', 'uio'))
find = Find(self._db, default_zone)
return bool(find.find_used_ips(self.subnet_ip))
def check_reserved_addresses_in_use(self):
"""TODO: DOC
"""
# Need to import Utils here, since Utils imports this module,
# and we cannot have circular module dependencies.
from Cerebrum.modules.dns.Utils import Find
default_zone = self.const.DnsZone(getattr(cereconf, 'DNS_DEFAULT_ZONE', 'uio'))
find = Find(self._db, default_zone)
ip_number = IPNumber.IPNumber(self._db)
ip_number.clear()
res_adr_in_use = []
for row in ip_number.find_in_range(self.ip_min, self.ip_max):
current_address = long(row['ipnr'])
if current_address in self.reserved_adr:
res_adr_in_use.append(IPCalc.long_to_ip(current_address))
if res_adr_in_use:
res_adr_in_use.sort()
raise SubnetError(
"The following reserved ip's are already in use " +
"on (new?) subnet %s/%s: " % (self.subnet_ip, self.subnet_mask) +
"'%s'." % (', '.join(res_adr_in_use)))
def has_adresses_in_use(self):
"""Check whether or not there are any IPs in use on this subnet.
Return 'True' if there are.
"""
# Need to import Utils here, since Utils imports this module,
# and we cannot have circular module dependencies.
from Cerebrum.modules.dns.Utils import Find
default_zone = self.const.DnsZone(getattr(cereconf, 'DNS_DEFAULT_ZONE', 'uio'))
find = Find(self._db, default_zone)
if find.find_used_ips(self.subnet_ip):
return True
else:
return False
