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bucket.py

# Copyright (c) 2006,2007 Mitch Garnaat http://garnaat.org/
#
# 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.

#pylint: disable-all
#@PydevCodeAnalysisIgnore

from ... import boto
from .. import handler
from ..resultset import ResultSet
from .acl import Policy, CannedACLStrings, ACL, Grant
from .user import User
from .key import Key
from .prefix import Prefix
from ..exception import S3ResponseError, S3PermissionsError, S3CopyError
from .bucketlistresultset import BucketListResultSet
from .. import utils
import xml.sax
import urllib
import re

S3Permissions = ['READ', 'WRITE', 'READ_ACP', 'WRITE_ACP', 'FULL_CONTROL']

00041 class Bucket:

    BucketLoggingBody = """<?xml version="1.0" encoding="UTF-8"?>
       <BucketLoggingStatus xmlns="http://s3.amazonaws.com/doc/2006-03-01/">
         <LoggingEnabled>
           <TargetBucket>%s</TargetBucket>
           <TargetPrefix>%s</TargetPrefix>
         </LoggingEnabled>
       </BucketLoggingStatus>"""
    
    EmptyBucketLoggingBody = """<?xml version="1.0" encoding="UTF-8"?>
       <BucketLoggingStatus xmlns="http://s3.amazonaws.com/doc/2006-03-01/">
       </BucketLoggingStatus>"""

    LoggingGroup = 'http://acs.amazonaws.com/groups/s3/LogDelivery'

    BucketPaymentBody = """<?xml version="1.0" encoding="UTF-8"?>
       <RequestPaymentConfiguration xmlns="http://s3.amazonaws.com/doc/2006-03-01/">
         <Payer>%s</Payer>
       </RequestPaymentConfiguration>"""

    VersioningBody = """<?xml version="1.0" encoding="UTF-8"?>
       <VersioningConfiguration xmlns="http://s3.amazonaws.com/doc/2006-03-01/">
         <Status>%s</Status>
         <MfaDelete>%s</MfaDelete>
       </VersioningConfiguration>"""

    VersionRE = '<Status>([A-Za-z]+)</Status>'
    MFADeleteRE = '<MfaDelete>([A-Za-z]+)</MfaDelete>'

    def __init__(self, connection=None, name=None, key_class=Key):
        self.name = name
        self.connection = connection
        self.key_class = key_class

    def __repr__(self):
        return '<Bucket: %s>' % self.name

    def __iter__(self):
        return iter(BucketListResultSet(self))

    def __contains__(self, key_name):
       return not (self.get_key(key_name) is None)

    def startElement(self, name, attrs, connection):
        return None

    def endElement(self, name, value, connection):
        if name == 'Name':
            self.name = value
        elif name == 'CreationDate':
            self.creation_date = value
        else:
            setattr(self, name, value)

00096     def set_key_class(self, key_class):
        """
        Set the Key class associated with this bucket.  By default, this
        would be the boto.s3.key.Key class but if you want to subclass that
        for some reason this allows you to associate your new class with a
        bucket so that when you call bucket.new_key() or when you get a listing
        of keys in the bucket you will get an instances of your key class
        rather than the default.
        
        :type key_class: class
        :param key_class: A subclass of Key that can be more specific
        """
        self.key_class = key_class

00110     def lookup(self, key_name, headers=None):
        """
        Deprecated: Please use get_key method.
        
        :type key_name: string
        :param key_name: The name of the key to retrieve
        
        :rtype: :class:`boto.s3.key.Key`
        :returns: A Key object from this bucket.
        """
        return self.get_key(key_name, headers=headers)
        
00122     def get_key(self, key_name, headers=None, version_id=None):
        """
        Check to see if a particular key exists within the bucket.  This
        method uses a HEAD request to check for the existance of the key.
        Returns: An instance of a Key object or None
        
        :type key_name: string
        :param key_name: The name of the key to retrieve
        
        :rtype: :class:`boto.s3.key.Key`
        :returns: A Key object from this bucket.
        """
        if version_id:
            query_args = 'versionId=%s' % version_id
        else:
            query_args = None
        response = self.connection.make_request('HEAD', self.name, key_name,
                                                headers=headers,
                                                query_args=query_args)
        if response.status == 200:
            response.read()
            k = self.key_class(self)
            k.metadata = boto.utils.get_aws_metadata(response.msg)
            k.etag = response.getheader('etag')
            k.content_type = response.getheader('content-type')
            k.content_encoding = response.getheader('content-encoding')
            k.last_modified = response.getheader('last-modified')
            k.size = int(response.getheader('content-length'))
            k.name = key_name
            k.handle_version_headers(response)
            return k
        else:
            if response.status == 404:
                response.read()
                return None
            else:
                raise S3ResponseError(response.status, response.reason, '')

00160     def list(self, prefix='', delimiter='', marker='', headers=None):
        """
        List key objects within a bucket.  This returns an instance of an
        BucketListResultSet that automatically handles all of the result
        paging, etc. from S3.  You just need to keep iterating until
        there are no more results.
        Called with no arguments, this will return an iterator object across
        all keys within the bucket.
        
        :type prefix: string
        :param prefix: allows you to limit the listing to a particular
                        prefix.  For example, if you call the method with
                        prefix='/foo/' then the iterator will only cycle
                        through the keys that begin with the string '/foo/'.
                        
        :type delimiter: string
        :param delimiter: can be used in conjunction with the prefix
                        to allow you to organize and browse your keys
                        hierarchically. See:
                        http://docs.amazonwebservices.com/AmazonS3/2006-03-01/
                        for more details.
                        
        :type marker: string
        :param marker: The "marker" of where you are in the result set
        
        :rtype: :class:`boto.s3.bucketlistresultset.BucketListResultSet`
        :return: an instance of a BucketListResultSet that handles paging, etc
        """
        return BucketListResultSet(self, prefix, delimiter, marker, headers)

00190     def list_versions(self, prefix='', delimiter='', key_marker='',
                      version_id_marker='', headers=None):
        """
        List key objects within a bucket.  This returns an instance of an
        BucketListResultSet that automatically handles all of the result
        paging, etc. from S3.  You just need to keep iterating until
        there are no more results.
        Called with no arguments, this will return an iterator object across
        all keys within the bucket.
        
        :type prefix: string
        :param prefix: allows you to limit the listing to a particular
                        prefix.  For example, if you call the method with
                        prefix='/foo/' then the iterator will only cycle
                        through the keys that begin with the string '/foo/'.
                        
        :type delimiter: string
        :param delimiter: can be used in conjunction with the prefix
                        to allow you to organize and browse your keys
                        hierarchically. See:
                        http://docs.amazonwebservices.com/AmazonS3/2006-03-01/
                        for more details.
                        
        :type marker: string
        :param marker: The "marker" of where you are in the result set
        
        :rtype: :class:`boto.s3.bucketlistresultset.BucketListResultSet`
        :return: an instance of a BucketListResultSet that handles paging, etc
        """
        return VersionedBucketListResultSet(self, prefix, delimiter, key_marker,
                                            version_id_marker, headers)

    def _get_all(self, element_map, initial_query_string='',
                 headers=None, **params):
        l = []
        for k,v in params.items():
            k = k.replace('_', '-')
            if  k == 'maxkeys':
                k = 'max-keys'
            if isinstance(v, unicode):
                v = v.encode('utf-8')
            if v is not None and v != '':
                l.append('%s=%s' % (urllib.quote(k), urllib.quote(str(v))))
        if len(l):
            s = initial_query_string + '&' + '&'.join(l)
        else:
            s = initial_query_string
        response = self.connection.make_request('GET', self.name,
                headers=headers, query_args=s)
        body = response.read()
        boto.log.debug(body)
        if response.status == 200:
            rs = ResultSet(element_map)
            h = handler.XmlHandler(rs, self)
            xml.sax.parseString(body, h)
            return rs
        else:
            raise S3ResponseError(response.status, response.reason, body)

00249     def get_all_keys(self, headers=None, **params):
        """
        A lower-level method for listing contents of a bucket.
        This closely models the actual S3 API and requires you to manually
        handle the paging of results.  For a higher-level method
        that handles the details of paging for you, you can use the list method.
        
        :type max_keys: int
        :param max_keys: The maximum number of keys to retrieve
        
        :type prefix: string
        :param prefix: The prefix of the keys you want to retrieve
        
        :type marker: string
        :param marker: The "marker" of where you are in the result set
        
        :type delimiter: string 
        :param delimiter: If this optional, Unicode string parameter
                          is included with your request, then keys that
                          contain the same string between the prefix and
                          the first occurrence of the delimiter will be
                          rolled up into a single result element in the
                          CommonPrefixes collection. These rolled-up keys
                          are not returned elsewhere in the response.

        :rtype: ResultSet
        :return: The result from S3 listing the keys requested
        
        """
        return self._get_all([('Contents', self.key_class),
                              ('CommonPrefixes', Prefix)],
                             '', headers, **params)

00282     def get_all_versions(self, headers=None, **params):
        """
        A lower-level, version-aware method for listing contents of a bucket.
        This closely models the actual S3 API and requires you to manually
        handle the paging of results.  For a higher-level method
        that handles the details of paging for you, you can use the list method.
        
        :type max_keys: int
        :param max_keys: The maximum number of keys to retrieve
        
        :type prefix: string
        :param prefix: The prefix of the keys you want to retrieve
        
        :type key_marker: string
        :param key_marker: The "marker" of where you are in the result set
                           with respect to keys.
        
        :type version_id_marker: string
        :param version_id_marker: The "marker" of where you are in the result
                                  set with respect to version-id's.
        
        :type delimiter: string 
        :param delimiter: If this optional, Unicode string parameter
                          is included with your request, then keys that
                          contain the same string between the prefix and
                          the first occurrence of the delimiter will be
                          rolled up into a single result element in the
                          CommonPrefixes collection. These rolled-up keys
                          are not returned elsewhere in the response.

        :rtype: ResultSet
        :return: The result from S3 listing the keys requested
        
        """
        return self._get_all([('Version', self.key_class),
                              ('CommonPrefixes', Prefix),
                              ('DeleteMarker', DeleteMarker)],
                             'versions', headers, **params)

00321     def new_key(self, key_name=None):
        """
        Creates a new key
        
        :type key_name: string
        :param key_name: The name of the key to create
        
        :rtype: :class:`boto.s3.key.Key` or subclass
        :returns: An instance of the newly created key object
        """
        return self.key_class(self, key_name)

    def generate_url(self, expires_in, method='GET',
                     headers=None, force_http=False):
        return self.connection.generate_url(expires_in, method, self.name,
                                            headers=headers,
                                            force_http=force_http)

00339     def delete_key(self, key_name, headers=None,
                   version_id=None, mfa_token=None):
        """
        Deletes a key from the bucket.  If a version_id is provided,
        only that version of the key will be deleted.
        
        :type key_name: string
        :param key_name: The key name to delete

        :type version_id: string
        :param version_id: The version ID (optional)
        
        :type mfa_token: tuple or list of strings
        :param mfa_token: A tuple or list consisting of the serial number
                          from the MFA device and the current value of
                          the six-digit token associated with the device.
                          This value is required anytime you are
                          deleting versioned objects from a bucket
                          that has the MFADelete option on the bucket.
        """
        if version_id:
            query_args = 'versionId=%s' % version_id
        else:
            query_args = None
        if mfa_token:
            if not headers:
                headers = {}
            headers['x-amz-mfa'] = ' '.join(mfa_token)
        response = self.connection.make_request('DELETE', self.name, key_name,
                                                headers=headers,
                                                query_args=query_args)
        body = response.read()
        if response.status != 204:
            raise S3ResponseError(response.status, response.reason, body)

00374     def copy_key(self, new_key_name, src_bucket_name,
                 src_key_name, metadata=None, src_version_id=None,
                 storage_class='STANDARD', preserve_acl=False):
        """
        Create a new key in the bucket by copying another existing key.

        :type new_key_name: string
        :param new_key_name: The name of the new key

        :type src_bucket_name: string
        :param src_bucket_name: The name of the source bucket

        :type src_key_name: string
        :param src_key_name: The name of the source key

        :type src_version_id: string
        :param src_version_id: The version id for the key.  This param
                               is optional.  If not specified, the newest
                               version of the key will be copied.

        :type metadata: dict
        :param metadata: Metadata to be associated with new key.
                         If metadata is supplied, it will replace the
                         metadata of the source key being copied.
                         If no metadata is supplied, the source key's
                         metadata will be copied to the new key.

        :type storage_class: string
        :param storage_class: The storage class of the new key.
                              By default, the new key will use the
                              standard storage class.  Possible values are:
                              STANDARD | REDUCED_REDUNDANCY

        :type preserve_acl: bool
        :param preserve_acl: If True, the ACL from the source key
                             will be copied to the destination
                             key.  If False, the destination key
                             will have the default ACL.
                             Note that preserving the ACL in the
                             new key object will require two
                             additional API calls to S3, one to
                             retrieve the current ACL and one to
                             set that ACL on the new object.  If
                             you don't care about the ACL, a value
                             of False will be significantly more
                             efficient.

        :rtype: :class:`boto.s3.key.Key` or subclass
        :returns: An instance of the newly created key object
        """
        if preserve_acl:
            acl = self.get_xml_acl(src_key_name)
        src = '%s/%s' % (src_bucket_name, urllib.quote(src_key_name))
        if src_version_id:
            src += '?version_id=%s' % src_version_id
        headers = {'x-amz-copy-source' : src}
        if storage_class != 'STANDARD':
            headers['x-amz-storage-class'] = storage_class
        if metadata:
            headers['x-amz-metadata-directive'] = 'REPLACE'
            headers = boto.utils.merge_meta(headers, metadata)
        else:
            headers['x-amz-metadata-directive'] = 'COPY'
        response = self.connection.make_request('PUT', self.name, new_key_name,
                                                headers=headers)
        body = response.read()
        if response.status == 200:
            key = self.new_key(new_key_name)
            h = handler.XmlHandler(key, self)
            xml.sax.parseString(body, h)
            if hasattr(key, 'Error'):
                raise S3CopyError(key.Code, key.Message, body)
            key.handle_version_headers(response)
            if preserve_acl:
                self.set_xml_acl(acl, new_key_name)
            return key
        else:
            raise S3ResponseError(response.status, response.reason, body)

    def set_canned_acl(self, acl_str, key_name='', headers=None,
                       version_id=None):
        assert acl_str in CannedACLStrings

        if headers:
            headers['x-amz-acl'] = acl_str
        else:
            headers={'x-amz-acl': acl_str}

        query_args='acl'
        if version_id:
            query_args += '&versionId=%s' % version_id
        response = self.connection.make_request('PUT', self.name, key_name,
                headers=headers, query_args=query_args)
        body = response.read()
        if response.status != 200:
            raise S3ResponseError(response.status, response.reason, body)

    def get_xml_acl(self, key_name='', headers=None, version_id=None):
        query_args = 'acl'
        if version_id:
            query_args += '&versionId=%s' % version_id
        response = self.connection.make_request('GET', self.name, key_name,
                                                query_args=query_args,
                                                headers=headers)
        body = response.read()
        if response.status != 200:
            raise S3ResponseError(response.status, response.reason, body)
        return body

    def set_xml_acl(self, acl_str, key_name='', headers=None, version_id=None):
        query_args = 'acl'
        if version_id:
            query_args += '&versionId=%s' % version_id
        response = self.connection.make_request('PUT', self.name, key_name,
                                                data=acl_str,
                                                query_args=query_args,
                                                headers=headers)
        body = response.read()
        if response.status != 200:
            raise S3ResponseError(response.status, response.reason, body)

    def set_acl(self, acl_or_str, key_name='', headers=None, version_id=None):
        if isinstance(acl_or_str, Policy):
            self.set_xml_acl(acl_or_str.to_xml(), key_name,
                             headers, version_id)
        else:
            self.set_canned_acl(acl_or_str, key_name,
                                headers, version_id)

    def get_acl(self, key_name='', headers=None, version_id=None):
        query_args = 'acl'
        if version_id:
            query_args += '&versionId=%s' % version_id
        response = self.connection.make_request('GET', self.name, key_name,
                                                query_args=query_args,
                                                headers=headers)
        body = response.read()
        if response.status == 200:
            policy = Policy(self)
            h = handler.XmlHandler(policy, self)
            xml.sax.parseString(body, h)
            return policy
        else:
            raise S3ResponseError(response.status, response.reason, body)

    def make_public(self, recursive=False, headers=None):
        self.set_canned_acl('public-read', headers=headers)
        if recursive:
            for key in self:
                self.set_canned_acl('public-read', key.name, headers=headers)

00525     def add_email_grant(self, permission, email_address,
                        recursive=False, headers=None):
        """
        Convenience method that provides a quick way to add an email grant
        to a bucket. This method retrieves the current ACL, creates a new
        grant based on the parameters passed in, adds that grant to the ACL
        and then PUT's the new ACL back to S3.
        
        :type permission: string
        :param permission: The permission being granted. Should be one of:
                           (READ, WRITE, READ_ACP, WRITE_ACP, FULL_CONTROL).
        
        :type email_address: string
        :param email_address: The email address associated with the AWS
                              account your are granting the permission to.
        
        :type recursive: boolean
        :param recursive: A boolean value to controls whether the command
                          will apply the grant to all keys within the bucket
                          or not.  The default value is False.  By passing a
                          True value, the call will iterate through all keys
                          in the bucket and apply the same grant to each key.
                          CAUTION: If you have a lot of keys, this could take
                          a long time!
        """
        if permission not in S3Permissions:
            raise S3PermissionsError('Unknown Permission: %s' % permission)
        policy = self.get_acl(headers=headers)
        policy.acl.add_email_grant(permission, email_address)
        self.set_acl(policy, headers=headers)
        if recursive:
            for key in self:
                key.add_email_grant(permission, email_address, headers=headers)

00559     def add_user_grant(self, permission, user_id, recursive=False, headers=None):
        """
        Convenience method that provides a quick way to add a canonical user grant to a bucket.
        This method retrieves the current ACL, creates a new grant based on the parameters
        passed in, adds that grant to the ACL and then PUT's the new ACL back to S3.
        
        :type permission: string
        :param permission: The permission being granted. Should be one of:
                           (READ, WRITE, READ_ACP, WRITE_ACP, FULL_CONTROL).
        
        :type user_id: string
        :param user_id:     The canonical user id associated with the AWS account your are granting
                            the permission to.
                            
        :type recursive: boolean
        :param recursive: A boolean value to controls whether the command
                          will apply the grant to all keys within the bucket
                          or not.  The default value is False.  By passing a
                          True value, the call will iterate through all keys
                          in the bucket and apply the same grant to each key.
                          CAUTION: If you have a lot of keys, this could take
                          a long time!
        """
        if permission not in S3Permissions:
            raise S3PermissionsError('Unknown Permission: %s' % permission)
        policy = self.get_acl(headers=headers)
        policy.acl.add_user_grant(permission, user_id)
        self.set_acl(policy, headers=headers)
        if recursive:
            for key in self:
                key.add_user_grant(permission, user_id, headers=headers)

    def list_grants(self, headers=None):
        policy = self.get_acl(headers=headers)
        return policy.acl.grants

00595     def get_location(self):
        """
        Returns the LocationConstraint for the bucket.

        :rtype: str
        :return: The LocationConstraint for the bucket or the empty string if
                 no constraint was specified when bucket was created.
        """
        response = self.connection.make_request('GET', self.name,
                                                query_args='location')
        body = response.read()
        if response.status == 200:
            rs = ResultSet(self)
            h = handler.XmlHandler(rs, self)
            xml.sax.parseString(body, h)
            return rs.LocationConstraint
        else:
            raise S3ResponseError(response.status, response.reason, body)

    def enable_logging(self, target_bucket, target_prefix='', headers=None):
        if isinstance(target_bucket, Bucket):
            target_bucket = target_bucket.name
        body = self.BucketLoggingBody % (target_bucket, target_prefix)
        response = self.connection.make_request('PUT', self.name, data=body,
                query_args='logging', headers=headers)
        body = response.read()
        if response.status == 200:
            return True
        else:
            raise S3ResponseError(response.status, response.reason, body)
        
    def disable_logging(self, headers=None):
        body = self.EmptyBucketLoggingBody
        response = self.connection.make_request('PUT', self.name, data=body,
                query_args='logging', headers=headers)
        body = response.read()
        if response.status == 200:
            return True
        else:
            raise S3ResponseError(response.status, response.reason, body)

    def get_logging_status(self, headers=None):
        response = self.connection.make_request('GET', self.name,
                query_args='logging', headers=headers)
        body = response.read()
        if response.status == 200:
            return body
        else:
            raise S3ResponseError(response.status, response.reason, body)

    def set_as_logging_target(self, headers=None):
        policy = self.get_acl(headers=headers)
        g1 = Grant(permission='WRITE', type='Group', uri=self.LoggingGroup)
        g2 = Grant(permission='READ_ACP', type='Group', uri=self.LoggingGroup)
        policy.acl.add_grant(g1)
        policy.acl.add_grant(g2)
        self.set_acl(policy, headers=headers)

    def get_request_payment(self, headers=None):
        response = self.connection.make_request('GET', self.name,
                query_args='requestPayment', headers=headers)
        body = response.read()
        if response.status == 200:
            return body
        else:
            raise S3ResponseError(response.status, response.reason, body)

    def set_request_payment(self, payer='BucketOwner', headers=None):
        body = self.BucketPaymentBody % payer
        response = self.connection.make_request('PUT', self.name, data=body,
                query_args='requestPayment', headers=headers)
        body = response.read()
        if response.status == 200:
            return True
        else:
            raise S3ResponseError(response.status, response.reason, body)
        
00672     def configure_versioning(self, versioning, mfa_delete=False,
                             mfa_token=None, headers=None):
        """
        Configure versioning for this bucket.
        Note: This feature is currently in beta release and is available
              only in the Northern California region.

        :type versioning: bool
        :param versioning: A boolean indicating whether version is
                           enabled (True) or disabled (False).

        :type mfa_delete: bool
        :param mfa_delete: A boolean indicating whether the Multi-Factor
                           Authentication Delete feature is enabled (True)
                           or disabled (False).  If mfa_delete is enabled
                           then all Delete operations will require the
                           token from your MFA device to be passed in
                           the request.

        :type mfa_token: tuple or list of strings
        :param mfa_token: A tuple or list consisting of the serial number
                          from the MFA device and the current value of
                          the six-digit token associated with the device.
                          This value is required when you are changing
                          the status of the MfaDelete property of
                          the bucket.
        """
        if versioning:
            ver = 'Enabled'
        else:
            ver = 'Suspended'
        if mfa_delete:
            mfa = 'Enabled'
        else:
            mfa = 'Disabled'
        body = self.VersioningBody % (ver, mfa)
        if mfa_token:
            if not headers:
                headers = {}
            headers['x-amz-mfa'] = ' '.join(mfa_token)
        response = self.connection.make_request('PUT', self.name, data=body,
                query_args='versioning', headers=headers)
        body = response.read()
        if response.status == 200:
            return True
        else:
            raise S3ResponseError(response.status, response.reason, body)
        
00720     def get_versioning_status(self, headers=None):
        """
        Returns the current status of versioning on the bucket.

        :rtype: dict
        :returns: A dictionary containing a key named 'Versioning'
                  that can have a value of either Enabled, Disabled,
                  or Suspended. Also, if MFADelete has ever been enabled
                  on the bucket, the dictionary will contain a key
                  named 'MFADelete' which will have a value of either
                  Enabled or Suspended.
        """
        response = self.connection.make_request('GET', self.name,
                query_args='versioning', headers=headers)
        body = response.read()
        boto.log.debug(body)
        if response.status == 200:
            d = {}
            ver = re.search(self.VersionRE, body)
            if ver:
                d['Versioning'] = ver.group(1)
            mfa = re.search(self.MFADeleteRE, body)
            if mfa:
                d['MfaDelete'] = mfa.group(1)
            return d
        else:
            raise S3ResponseError(response.status, response.reason, body)

    def delete(self, headers=None):
        return self.connection.delete_bucket(self.name, headers=headers)

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