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# Copyright (c) 2011 Blue Pines Technologies LLC, Brad Carleton
# www.bluepines.org
# Copyright (c) 2012 42 Lines Inc., Jim Browne
# All rights reserved.
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish, dis-
# tribute, sublicense, and/or sell copies of the Software, and to permit
# persons to whom the Software is furnished to do so, subject to the fol-
# lowing conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABIL-
# ITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
# SHALL THE AUTHOR BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
# IN THE SOFTWARE.
default_ttl = 60
import copy
from boto.exception import TooManyRecordsException
from boto.route53.record import ResourceRecordSets
from boto.route53.status import Status
class Zone(object):
"""
A Route53 Zone.
:ivar route53connection: A :class:`boto.route53.connection.Route53Connection` connection
:ivar id: The ID of the hosted zone
"""
def __init__(self, route53connection, zone_dict):
self.route53connection = route53connection
for key in zone_dict:
if key == 'Id':
self.id = zone_dict['Id'].replace('/hostedzone/', '')
else:
self.__setattr__(key.lower(), zone_dict[key])
def __repr__(self):
return '<Zone:%s>' % self.name
def _commit(self, changes):
"""
Commit a set of changes and return the ChangeInfo portion of
the response.
:type changes: ResourceRecordSets
:param changes: changes to be committed
"""
response = changes.commit()
return response['ChangeResourceRecordSetsResponse']['ChangeInfo']
def _new_record(self, changes, resource_type, name, value, ttl, identifier,
comment=""):
"""
Add a CREATE change record to an existing ResourceRecordSets
:type changes: ResourceRecordSets
:param changes: change set to append to
:type name: str
:param name: The name of the resource record you want to
perform the action on.
:type resource_type: str
:param resource_type: The DNS record type
:param value: Appropriate value for resource_type
:type ttl: int
:param ttl: The resource record cache time to live (TTL), in seconds.
:type identifier: tuple
:param identifier: A tuple for setting WRR or LBR attributes. Valid
forms are:
* (str, int): WRR record [e.g. ('foo',10)]
* (str, str): LBR record [e.g. ('foo','us-east-1')
:type comment: str
:param comment: A comment that will be stored with the change.
"""
weight = None
region = None
if identifier is not None:
try:
int(identifier[1])
weight = identifier[1]
identifier = identifier[0]
except:
region = identifier[1]
identifier = identifier[0]
change = changes.add_change("CREATE", name, resource_type, ttl,
identifier=identifier, weight=weight,
region=region)
if type(value) in [list, tuple, set]:
for record in value:
change.add_value(record)
else:
change.add_value(value)
def add_record(self, resource_type, name, value, ttl=60, identifier=None,
comment=""):
"""
Add a new record to this Zone. See _new_record for parameter
documentation. Returns a Status object.
"""
changes = ResourceRecordSets(self.route53connection, self.id, comment)
self._new_record(changes, resource_type, name, value, ttl, identifier,
comment)
return Status(self.route53connection, self._commit(changes))
def update_record(self, old_record, new_value, new_ttl=None,
new_identifier=None, comment=""):
"""
Update an existing record in this Zone. Returns a Status object.
:type old_record: ResourceRecord
:param old_record: A ResourceRecord (e.g. returned by find_records)
See _new_record for additional parameter documentation.
"""
new_ttl = new_ttl or default_ttl
record = copy.copy(old_record)
changes = ResourceRecordSets(self.route53connection, self.id, comment)
changes.add_change_record("DELETE", record)
self._new_record(changes, record.type, record.name,
new_value, new_ttl, new_identifier, comment)
return Status(self.route53connection, self._commit(changes))
def delete_record(self, record, comment=""):
"""
Delete one or more records from this Zone. Returns a Status object.
:param record: A ResourceRecord (e.g. returned by
find_records) or list, tuple, or set of ResourceRecords.
:type comment: str
:param comment: A comment that will be stored with the change.
"""
changes = ResourceRecordSets(self.route53connection, self.id, comment)
if type(record) in [list, tuple, set]:
for r in record:
changes.add_change_record("DELETE", r)
else:
changes.add_change_record("DELETE", record)
return Status(self.route53connection, self._commit(changes))
def add_cname(self, name, value, ttl=None, identifier=None, comment=""):
"""
Add a new CNAME record to this Zone. See _new_record for
parameter documentation. Returns a Status object.
"""
ttl = ttl or default_ttl
name = self.route53connection._make_qualified(name)
value = self.route53connection._make_qualified(value)
return self.add_record(resource_type='CNAME',
name=name,
value=value,
ttl=ttl,
identifier=identifier,
comment=comment)
def add_a(self, name, value, ttl=None, identifier=None, comment=""):
"""
Add a new A record to this Zone. See _new_record for
parameter documentation. Returns a Status object.
"""
ttl = ttl or default_ttl
name = self.route53connection._make_qualified(name)
return self.add_record(resource_type='A',
name=name,
value=value,
ttl=ttl,
identifier=identifier,
comment=comment)
def add_mx(self, name, records, ttl=None, identifier=None, comment=""):
"""
Add a new MX record to this Zone. See _new_record for
parameter documentation. Returns a Status object.
"""
ttl = ttl or default_ttl
records = self.route53connection._make_qualified(records)
return self.add_record(resource_type='MX',
name=name,
value=records,
ttl=ttl,
identifier=identifier,
comment=comment)
def find_records(self, name, type, desired=1, all=False, identifier=None):
"""
Search this Zone for records that match given parameters.
Returns None if no results, a ResourceRecord if one result, or
a ResourceRecordSets if more than one result.
:type name: str
:param name: The name of the records should match this parameter
:type type: str
:param type: The type of the records should match this parameter
:type desired: int
:param desired: The number of desired results. If the number of
matching records in the Zone exceeds the value of this parameter,
throw TooManyRecordsException
:type all: Boolean
:param all: If true return all records that match name, type, and
identifier parameters
:type identifier: Tuple
:param identifier: A tuple specifying WRR or LBR attributes. Valid
forms are:
* (str, int): WRR record [e.g. ('foo',10)]
* (str, str): LBR record [e.g. ('foo','us-east-1')
"""
name = self.route53connection._make_qualified(name)
returned = self.route53connection.get_all_rrsets(self.id, name=name,
type=type)
# name/type for get_all_rrsets sets the starting record; they
# are not a filter
results = []
for r in returned:
if r.name == name and r.type == type:
results.append(r)
# Is at the end of the list of matched records. No need to continue
# since the records are sorted by name and type.
else:
break
weight = None
region = None
if identifier is not None:
try:
int(identifier[1])
weight = identifier[1]
except:
region = identifier[1]
if weight is not None:
results = [r for r in results if (r.weight == weight and
r.identifier == identifier[0])]
if region is not None:
results = [r for r in results if (r.region == region and
r.identifier == identifier[0])]
if ((not all) and (len(results) > desired)):
message = "Search: name %s type %s" % (name, type)
message += "\nFound: "
message += ", ".join(["%s %s %s" % (r.name, r.type, r.to_print())
for r in results])
raise TooManyRecordsException(message)
elif len(results) > 1:
return results
elif len(results) == 1:
return results[0]
else:
return None
def get_cname(self, name, all=False):
"""
Search this Zone for CNAME records that match name.
Returns a ResourceRecord.
If there is more than one match return all as a
ResourceRecordSets if all is True, otherwise throws
TooManyRecordsException.
"""
return self.find_records(name, 'CNAME', all=all)
def get_a(self, name, all=False):
"""
Search this Zone for A records that match name.
Returns a ResourceRecord.
If there is more than one match return all as a
ResourceRecordSets if all is True, otherwise throws
TooManyRecordsException.
"""
return self.find_records(name, 'A', all=all)
def get_mx(self, name, all=False):
"""
Search this Zone for MX records that match name.
Returns a ResourceRecord.
If there is more than one match return all as a
ResourceRecordSets if all is True, otherwise throws
TooManyRecordsException.
"""
return self.find_records(name, 'MX', all=all)
def update_cname(self, name, value, ttl=None, identifier=None, comment=""):
"""
Update the given CNAME record in this Zone to a new value, ttl,
and identifier. Returns a Status object.
Will throw TooManyRecordsException is name, value does not match
a single record.
"""
name = self.route53connection._make_qualified(name)
value = self.route53connection._make_qualified(value)
old_record = self.get_cname(name)
ttl = ttl or old_record.ttl
return self.update_record(old_record,
new_value=value,
new_ttl=ttl,
new_identifier=identifier,
comment=comment)
def update_a(self, name, value, ttl=None, identifier=None, comment=""):
"""
Update the given A record in this Zone to a new value, ttl,
and identifier. Returns a Status object.
Will throw TooManyRecordsException is name, value does not match
a single record.
"""
name = self.route53connection._make_qualified(name)
old_record = self.get_a(name)
ttl = ttl or old_record.ttl
return self.update_record(old_record,
new_value=value,
new_ttl=ttl,
new_identifier=identifier,
comment=comment)
def update_mx(self, name, value, ttl=None, identifier=None, comment=""):
"""
Update the given MX record in this Zone to a new value, ttl,
and identifier. Returns a Status object.
Will throw TooManyRecordsException is name, value does not match
a single record.
"""
name = self.route53connection._make_qualified(name)
value = self.route53connection._make_qualified(value)
old_record = self.get_mx(name)
ttl = ttl or old_record.ttl
return self.update_record(old_record,
new_value=value,
new_ttl=ttl,
new_identifier=identifier,
comment=comment)
def delete_cname(self, name, identifier=None, all=False):
"""
Delete a CNAME record matching name and identifier from
this Zone. Returns a Status object.
If there is more than one match delete all matching records if
all is True, otherwise throws TooManyRecordsException.
"""
name = self.route53connection._make_qualified(name)
record = self.find_records(name, 'CNAME', identifier=identifier,
all=all)
return self.delete_record(record)
def delete_a(self, name, identifier=None, all=False):
"""
Delete an A record matching name and identifier from this
Zone. Returns a Status object.
If there is more than one match delete all matching records if
all is True, otherwise throws TooManyRecordsException.
"""
name = self.route53connection._make_qualified(name)
record = self.find_records(name, 'A', identifier=identifier,
all=all)
return self.delete_record(record)
def delete_mx(self, name, identifier=None, all=False):
"""
Delete an MX record matching name and identifier from this
Zone. Returns a Status object.
If there is more than one match delete all matching records if
all is True, otherwise throws TooManyRecordsException.
"""
name = self.route53connection._make_qualified(name)
record = self.find_records(name, 'MX', identifier=identifier,
all=all)
return self.delete_record(record)
def get_records(self):
"""
Return a ResourceRecordsSets for all of the records in this zone.
"""
return self.route53connection.get_all_rrsets(self.id)
def delete(self):
"""
Request that this zone be deleted by Amazon.
"""
self.route53connection.delete_hosted_zone(self.id)
def get_nameservers(self):
""" Get the list of nameservers for this zone."""
ns = self.find_records(self.name, 'NS')
if ns is not None:
ns = ns.resource_records
return ns
|
