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# Copyright 2010 Google Inc.
#
# 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.
import boto
from boto.gs.bucket import Bucket
from boto.s3.connection import S3Connection
from boto.s3.connection import SubdomainCallingFormat
from boto.s3.connection import check_lowercase_bucketname
from boto.compat import six
from boto.utils import get_utf8able_str
class Location(object):
DEFAULT = 'US'
EU = 'EU'
class GSConnection(S3Connection):
DefaultHost = 'storage.googleapis.com'
DefaultCallingFormat = 'boto.s3.connection.OrdinaryCallingFormat'
QueryString = 'Signature=%s&Expires=%d&GoogleAccessId=%s'
def __init__(self, gs_access_key_id=None, gs_secret_access_key=None,
is_secure=True, port=None, proxy=None, proxy_port=None,
proxy_user=None, proxy_pass=None,
host=DefaultHost, debug=0, https_connection_factory=None,
calling_format=None, path='/', suppress_consec_slashes=True):
super(GSConnection, self).__init__(gs_access_key_id, gs_secret_access_key,
is_secure, port, proxy, proxy_port, proxy_user, proxy_pass,
host, debug, https_connection_factory, calling_format, path,
"google", Bucket,
suppress_consec_slashes=suppress_consec_slashes)
def _required_auth_capability(self):
"""
Overrides the S3 version of this method to remove the
@detect_potential_s3sigv4 decorator to avoid sending v4 headers to
gcs.
"""
if self.anon:
return ['anon']
else:
return ['s3']
def create_bucket(self, bucket_name, headers=None,
location=Location.DEFAULT, policy=None,
storage_class='STANDARD'):
"""
Creates a new bucket. By default it's located in the USA. You can
pass Location.EU to create bucket in the EU. You can also pass
a LocationConstraint for where the bucket should be located, and
a StorageClass describing how the data should be stored.
:type bucket_name: string
:param bucket_name: The name of the new bucket.
:type headers: dict
:param headers: Additional headers to pass along with the request to GCS.
:type location: :class:`boto.gs.connection.Location`
:param location: The location of the new bucket.
:type policy: :class:`boto.gs.acl.CannedACLStrings`
:param policy: A canned ACL policy that will be applied to the new key
in GCS.
:type storage_class: string
:param storage_class: Either 'STANDARD' or 'DURABLE_REDUCED_AVAILABILITY'.
"""
check_lowercase_bucketname(bucket_name)
if policy:
if headers:
headers[self.provider.acl_header] = policy
else:
headers = {self.provider.acl_header : policy}
if not location:
location = Location.DEFAULT
location_elem = ('<LocationConstraint>%s</LocationConstraint>'
% location)
if storage_class:
storage_class_elem = ('<StorageClass>%s</StorageClass>'
% storage_class)
else:
storage_class_elem = ''
data = ('<CreateBucketConfiguration>%s%s</CreateBucketConfiguration>'
% (location_elem, storage_class_elem))
response = self.make_request(
'PUT', get_utf8able_str(bucket_name), headers=headers,
data=get_utf8able_str(data))
body = response.read()
if response.status == 409:
raise self.provider.storage_create_error(
response.status, response.reason, body)
if response.status == 200:
return self.bucket_class(self, bucket_name)
else:
raise self.provider.storage_response_error(
response.status, response.reason, body)
def get_bucket(self, bucket_name, validate=True, headers=None):
"""
Retrieves a bucket by name.
If the bucket does not exist, an ``S3ResponseError`` will be raised. If
you are unsure if the bucket exists or not, you can use the
``S3Connection.lookup`` method, which will either return a valid bucket
or ``None``.
:type bucket_name: string
:param bucket_name: The name of the bucket
:type headers: dict
:param headers: Additional headers to pass along with the request to
AWS.
:type validate: boolean
:param validate: If ``True``, it will try to fetch all keys within the
given bucket. (Default: ``True``)
"""
bucket = self.bucket_class(self, bucket_name)
if validate:
bucket.get_all_keys(headers, maxkeys=0)
return bucket