945 lines
41 KiB
Python
945 lines
41 KiB
Python
|
# Copyright 2010 Google Inc.
|
||
|
|
# Copyright (c) 2011, Nexenta Systems 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
|
||
|
|
import os
|
||
|
|
import sys
|
||
|
|
import textwrap
|
||
|
|
from boto.s3.deletemarker import DeleteMarker
|
||
|
|
from boto.exception import BotoClientError
|
||
|
|
from boto.exception import InvalidUriError
|
||
|
|
|
||
|
|
|
||
|
|
class StorageUri(object):
|
||
|
|
"""
|
||
|
|
Base class for representing storage provider-independent bucket and
|
||
|
|
object name with a shorthand URI-like syntax.
|
||
|
|
|
||
|
|
This is an abstract class: the constructor cannot be called (throws an
|
||
|
|
exception if you try).
|
||
|
|
"""
|
||
|
|
|
||
|
|
connection = None
|
||
|
|
# Optional args that can be set from one of the concrete subclass
|
||
|
|
# constructors, to change connection behavior (e.g., to override
|
||
|
|
# https_connection_factory).
|
||
|
|
connection_args = None
|
||
|
|
|
||
|
|
# Map of provider scheme ('s3' or 'gs') to AWSAuthConnection object. We
|
||
|
|
# maintain a pool here in addition to the connection pool implemented
|
||
|
|
# in AWSAuthConnection because the latter re-creates its connection pool
|
||
|
|
# every time that class is instantiated (so the current pool is used to
|
||
|
|
# avoid re-instantiating AWSAuthConnection).
|
||
|
|
provider_pool = {}
|
||
|
|
|
||
|
|
def __init__(self):
|
||
|
|
"""Uncallable constructor on abstract base StorageUri class.
|
||
|
|
"""
|
||
|
|
raise BotoClientError('Attempt to instantiate abstract StorageUri '
|
||
|
|
'class')
|
||
|
|
|
||
|
|
def __repr__(self):
|
||
|
|
"""Returns string representation of URI."""
|
||
|
|
return self.uri
|
||
|
|
|
||
|
|
def equals(self, uri):
|
||
|
|
"""Returns true if two URIs are equal."""
|
||
|
|
return self.uri == uri.uri
|
||
|
|
|
||
|
|
def check_response(self, resp, level, uri):
|
||
|
|
if resp is None:
|
||
|
|
raise InvalidUriError('\n'.join(textwrap.wrap(
|
||
|
|
'Attempt to get %s for "%s" failed. This can happen if '
|
||
|
|
'the URI refers to a non-existent object or if you meant to '
|
||
|
|
'operate on a directory (e.g., leaving off -R option on gsutil '
|
||
|
|
'cp, mv, or ls of a bucket)' % (level, uri), 80)))
|
||
|
|
|
||
|
|
def _check_bucket_uri(self, function_name):
|
||
|
|
if issubclass(type(self), BucketStorageUri) and not self.bucket_name:
|
||
|
|
raise InvalidUriError(
|
||
|
|
'%s on bucket-less URI (%s)' % (function_name, self.uri))
|
||
|
|
|
||
|
|
def _check_object_uri(self, function_name):
|
||
|
|
if issubclass(type(self), BucketStorageUri) and not self.object_name:
|
||
|
|
raise InvalidUriError('%s on object-less URI (%s)' %
|
||
|
|
(function_name, self.uri))
|
||
|
|
|
||
|
|
def _warn_about_args(self, function_name, **args):
|
||
|
|
for arg in args:
|
||
|
|
if args[arg]:
|
||
|
|
sys.stderr.write(
|
||
|
|
'Warning: %s ignores argument: %s=%s\n' %
|
||
|
|
(function_name, arg, str(args[arg])))
|
||
|
|
|
||
|
|
def connect(self, access_key_id=None, secret_access_key=None, **kwargs):
|
||
|
|
"""
|
||
|
|
Opens a connection to appropriate provider, depending on provider
|
||
|
|
portion of URI. Requires Credentials defined in boto config file (see
|
||
|
|
boto/pyami/config.py).
|
||
|
|
@type storage_uri: StorageUri
|
||
|
|
@param storage_uri: StorageUri specifying a bucket or a bucket+object
|
||
|
|
@rtype: L{AWSAuthConnection<boto.gs.connection.AWSAuthConnection>}
|
||
|
|
@return: A connection to storage service provider of the given URI.
|
||
|
|
"""
|
||
|
|
connection_args = dict(self.connection_args or ())
|
||
|
|
|
||
|
|
if (hasattr(self, 'suppress_consec_slashes') and
|
||
|
|
'suppress_consec_slashes' not in connection_args):
|
||
|
|
connection_args['suppress_consec_slashes'] = (
|
||
|
|
self.suppress_consec_slashes)
|
||
|
|
connection_args.update(kwargs)
|
||
|
|
if not self.connection:
|
||
|
|
if self.scheme in self.provider_pool:
|
||
|
|
self.connection = self.provider_pool[self.scheme]
|
||
|
|
elif self.scheme == 's3':
|
||
|
|
from boto.s3.connection import S3Connection
|
||
|
|
self.connection = S3Connection(access_key_id,
|
||
|
|
secret_access_key,
|
||
|
|
**connection_args)
|
||
|
|
self.provider_pool[self.scheme] = self.connection
|
||
|
|
elif self.scheme == 'gs':
|
||
|
|
from boto.gs.connection import GSConnection
|
||
|
|
# Use OrdinaryCallingFormat instead of boto-default
|
||
|
|
# SubdomainCallingFormat because the latter changes the hostname
|
||
|
|
# that's checked during cert validation for HTTPS connections,
|
||
|
|
# which will fail cert validation (when cert validation is
|
||
|
|
# enabled).
|
||
|
|
#
|
||
|
|
# The same is not true for S3's HTTPS certificates. In fact,
|
||
|
|
# we don't want to do this for S3 because S3 requires the
|
||
|
|
# subdomain to match the location of the bucket. If the proper
|
||
|
|
# subdomain is not used, the server will return a 301 redirect
|
||
|
|
# with no Location header.
|
||
|
|
#
|
||
|
|
# Note: the following import can't be moved up to the
|
||
|
|
# start of this file else it causes a config import failure when
|
||
|
|
# run from the resumable upload/download tests.
|
||
|
|
from boto.s3.connection import OrdinaryCallingFormat
|
||
|
|
connection_args['calling_format'] = OrdinaryCallingFormat()
|
||
|
|
self.connection = GSConnection(access_key_id,
|
||
|
|
secret_access_key,
|
||
|
|
**connection_args)
|
||
|
|
self.provider_pool[self.scheme] = self.connection
|
||
|
|
elif self.scheme == 'file':
|
||
|
|
from boto.file.connection import FileConnection
|
||
|
|
self.connection = FileConnection(self)
|
||
|
|
else:
|
||
|
|
raise InvalidUriError('Unrecognized scheme "%s"' %
|
||
|
|
self.scheme)
|
||
|
|
self.connection.debug = self.debug
|
||
|
|
return self.connection
|
||
|
|
|
||
|
|
def has_version(self):
|
||
|
|
return (issubclass(type(self), BucketStorageUri)
|
||
|
|
and ((self.version_id is not None)
|
||
|
|
or (self.generation is not None)))
|
||
|
|
|
||
|
|
def delete_key(self, validate=False, headers=None, version_id=None,
|
||
|
|
mfa_token=None):
|
||
|
|
self._check_object_uri('delete_key')
|
||
|
|
bucket = self.get_bucket(validate, headers)
|
||
|
|
return bucket.delete_key(self.object_name, headers, version_id,
|
||
|
|
mfa_token)
|
||
|
|
|
||
|
|
def list_bucket(self, prefix='', delimiter='', headers=None,
|
||
|
|
all_versions=False):
|
||
|
|
self._check_bucket_uri('list_bucket')
|
||
|
|
bucket = self.get_bucket(headers=headers)
|
||
|
|
if all_versions:
|
||
|
|
return (v for v in bucket.list_versions(
|
||
|
|
prefix=prefix, delimiter=delimiter, headers=headers)
|
||
|
|
if not isinstance(v, DeleteMarker))
|
||
|
|
else:
|
||
|
|
return bucket.list(prefix=prefix, delimiter=delimiter,
|
||
|
|
headers=headers)
|
||
|
|
|
||
|
|
def get_all_keys(self, validate=False, headers=None, prefix=None):
|
||
|
|
bucket = self.get_bucket(validate, headers)
|
||
|
|
return bucket.get_all_keys(headers)
|
||
|
|
|
||
|
|
def get_bucket(self, validate=False, headers=None):
|
||
|
|
self._check_bucket_uri('get_bucket')
|
||
|
|
conn = self.connect()
|
||
|
|
bucket = conn.get_bucket(self.bucket_name, validate, headers)
|
||
|
|
self.check_response(bucket, 'bucket', self.uri)
|
||
|
|
return bucket
|
||
|
|
|
||
|
|
def get_key(self, validate=False, headers=None, version_id=None):
|
||
|
|
self._check_object_uri('get_key')
|
||
|
|
bucket = self.get_bucket(validate, headers)
|
||
|
|
key = bucket.get_key(self.object_name, headers, version_id)
|
||
|
|
self.check_response(key, 'key', self.uri)
|
||
|
|
return key
|
||
|
|
|
||
|
|
def new_key(self, validate=False, headers=None):
|
||
|
|
self._check_object_uri('new_key')
|
||
|
|
bucket = self.get_bucket(validate, headers)
|
||
|
|
return bucket.new_key(self.object_name)
|
||
|
|
|
||
|
|
def get_contents_to_stream(self, fp, headers=None, version_id=None):
|
||
|
|
self._check_object_uri('get_key')
|
||
|
|
self._warn_about_args('get_key', validate=False)
|
||
|
|
key = self.get_key(None, headers)
|
||
|
|
self.check_response(key, 'key', self.uri)
|
||
|
|
return key.get_contents_to_file(fp, headers, version_id=version_id)
|
||
|
|
|
||
|
|
def get_contents_to_file(self, fp, headers=None, cb=None, num_cb=10,
|
||
|
|
torrent=False, version_id=None,
|
||
|
|
res_download_handler=None, response_headers=None,
|
||
|
|
hash_algs=None):
|
||
|
|
self._check_object_uri('get_contents_to_file')
|
||
|
|
key = self.get_key(None, headers)
|
||
|
|
self.check_response(key, 'key', self.uri)
|
||
|
|
if hash_algs:
|
||
|
|
key.get_contents_to_file(fp, headers, cb, num_cb, torrent,
|
||
|
|
version_id, res_download_handler,
|
||
|
|
response_headers,
|
||
|
|
hash_algs=hash_algs)
|
||
|
|
else:
|
||
|
|
key.get_contents_to_file(fp, headers, cb, num_cb, torrent,
|
||
|
|
version_id, res_download_handler,
|
||
|
|
response_headers)
|
||
|
|
|
||
|
|
def get_contents_as_string(self, validate=False, headers=None, cb=None,
|
||
|
|
num_cb=10, torrent=False, version_id=None):
|
||
|
|
self._check_object_uri('get_contents_as_string')
|
||
|
|
key = self.get_key(validate, headers)
|
||
|
|
self.check_response(key, 'key', self.uri)
|
||
|
|
return key.get_contents_as_string(headers, cb, num_cb, torrent,
|
||
|
|
version_id)
|
||
|
|
|
||
|
|
def acl_class(self):
|
||
|
|
conn = self.connect()
|
||
|
|
acl_class = conn.provider.acl_class
|
||
|
|
self.check_response(acl_class, 'acl_class', self.uri)
|
||
|
|
return acl_class
|
||
|
|
|
||
|
|
def canned_acls(self):
|
||
|
|
conn = self.connect()
|
||
|
|
canned_acls = conn.provider.canned_acls
|
||
|
|
self.check_response(canned_acls, 'canned_acls', self.uri)
|
||
|
|
return canned_acls
|
||
|
|
|
||
|
|
|
||
|
|
class BucketStorageUri(StorageUri):
|
||
|
|
"""
|
||
|
|
StorageUri subclass that handles bucket storage providers.
|
||
|
|
Callers should instantiate this class by calling boto.storage_uri().
|
||
|
|
"""
|
||
|
|
|
||
|
|
delim = '/'
|
||
|
|
capabilities = set([]) # A set of additional capabilities.
|
||
|
|
|
||
|
|
def __init__(self, scheme, bucket_name=None, object_name=None,
|
||
|
|
debug=0, connection_args=None, suppress_consec_slashes=True,
|
||
|
|
version_id=None, generation=None, is_latest=False):
|
||
|
|
"""Instantiate a BucketStorageUri from scheme,bucket,object tuple.
|
||
|
|
|
||
|
|
@type scheme: string
|
||
|
|
@param scheme: URI scheme naming the storage provider (gs, s3, etc.)
|
||
|
|
@type bucket_name: string
|
||
|
|
@param bucket_name: bucket name
|
||
|
|
@type object_name: string
|
||
|
|
@param object_name: object name, excluding generation/version.
|
||
|
|
@type debug: int
|
||
|
|
@param debug: debug level to pass in to connection (range 0..2)
|
||
|
|
@type connection_args: map
|
||
|
|
@param connection_args: optional map containing args to be
|
||
|
|
passed to {S3,GS}Connection constructor (e.g., to override
|
||
|
|
https_connection_factory).
|
||
|
|
@param suppress_consec_slashes: If provided, controls whether
|
||
|
|
consecutive slashes will be suppressed in key paths.
|
||
|
|
@param version_id: Object version id (S3-specific).
|
||
|
|
@param generation: Object generation number (GCS-specific).
|
||
|
|
@param is_latest: boolean indicating that a versioned object is the
|
||
|
|
current version
|
||
|
|
|
||
|
|
After instantiation the components are available in the following
|
||
|
|
fields: scheme, bucket_name, object_name, version_id, generation,
|
||
|
|
is_latest, versionless_uri, version_specific_uri, uri.
|
||
|
|
Note: If instantiated without version info, the string representation
|
||
|
|
for a URI stays versionless; similarly, if instantiated with version
|
||
|
|
info, the string representation for a URI stays version-specific. If you
|
||
|
|
call one of the uri.set_contents_from_xyz() methods, a specific object
|
||
|
|
version will be created, and its version-specific URI string can be
|
||
|
|
retrieved from version_specific_uri even if the URI was instantiated
|
||
|
|
without version info.
|
||
|
|
"""
|
||
|
|
|
||
|
|
self.scheme = scheme
|
||
|
|
self.bucket_name = bucket_name
|
||
|
|
self.object_name = object_name
|
||
|
|
self.debug = debug
|
||
|
|
if connection_args:
|
||
|
|
self.connection_args = connection_args
|
||
|
|
self.suppress_consec_slashes = suppress_consec_slashes
|
||
|
|
self.version_id = version_id
|
||
|
|
self.generation = generation and int(generation)
|
||
|
|
self.is_latest = is_latest
|
||
|
|
self.is_version_specific = bool(self.generation) or bool(version_id)
|
||
|
|
self._build_uri_strings()
|
||
|
|
|
||
|
|
def _build_uri_strings(self):
|
||
|
|
if self.bucket_name and self.object_name:
|
||
|
|
self.versionless_uri = '%s://%s/%s' % (self.scheme, self.bucket_name,
|
||
|
|
self.object_name)
|
||
|
|
if self.generation:
|
||
|
|
self.version_specific_uri = '%s#%s' % (self.versionless_uri,
|
||
|
|
self.generation)
|
||
|
|
elif self.version_id:
|
||
|
|
self.version_specific_uri = '%s#%s' % (
|
||
|
|
self.versionless_uri, self.version_id)
|
||
|
|
if self.is_version_specific:
|
||
|
|
self.uri = self.version_specific_uri
|
||
|
|
else:
|
||
|
|
self.uri = self.versionless_uri
|
||
|
|
elif self.bucket_name:
|
||
|
|
self.uri = ('%s://%s/' % (self.scheme, self.bucket_name))
|
||
|
|
else:
|
||
|
|
self.uri = ('%s://' % self.scheme)
|
||
|
|
|
||
|
|
def _update_from_key(self, key):
|
||
|
|
self._update_from_values(
|
||
|
|
getattr(key, 'version_id', None),
|
||
|
|
getattr(key, 'generation', None),
|
||
|
|
getattr(key, 'is_latest', None),
|
||
|
|
getattr(key, 'md5', None))
|
||
|
|
|
||
|
|
def _update_from_values(self, version_id, generation, is_latest, md5):
|
||
|
|
self.version_id = version_id
|
||
|
|
self.generation = generation
|
||
|
|
self.is_latest = is_latest
|
||
|
|
self._build_uri_strings()
|
||
|
|
self.md5 = md5
|
||
|
|
|
||
|
|
def get_key(self, validate=False, headers=None, version_id=None):
|
||
|
|
self._check_object_uri('get_key')
|
||
|
|
bucket = self.get_bucket(validate, headers)
|
||
|
|
if self.get_provider().name == 'aws':
|
||
|
|
key = bucket.get_key(self.object_name, headers,
|
||
|
|
version_id=(version_id or self.version_id))
|
||
|
|
elif self.get_provider().name == 'google':
|
||
|
|
key = bucket.get_key(self.object_name, headers,
|
||
|
|
generation=self.generation)
|
||
|
|
self.check_response(key, 'key', self.uri)
|
||
|
|
return key
|
||
|
|
|
||
|
|
def delete_key(self, validate=False, headers=None, version_id=None,
|
||
|
|
mfa_token=None):
|
||
|
|
self._check_object_uri('delete_key')
|
||
|
|
bucket = self.get_bucket(validate, headers)
|
||
|
|
if self.get_provider().name == 'aws':
|
||
|
|
version_id = version_id or self.version_id
|
||
|
|
return bucket.delete_key(self.object_name, headers, version_id,
|
||
|
|
mfa_token)
|
||
|
|
elif self.get_provider().name == 'google':
|
||
|
|
return bucket.delete_key(self.object_name, headers,
|
||
|
|
generation=self.generation)
|
||
|
|
|
||
|
|
def clone_replace_name(self, new_name):
|
||
|
|
"""Instantiate a BucketStorageUri from the current BucketStorageUri,
|
||
|
|
but replacing the object_name.
|
||
|
|
|
||
|
|
@type new_name: string
|
||
|
|
@param new_name: new object name
|
||
|
|
"""
|
||
|
|
self._check_bucket_uri('clone_replace_name')
|
||
|
|
return BucketStorageUri(
|
||
|
|
self.scheme, bucket_name=self.bucket_name, object_name=new_name,
|
||
|
|
debug=self.debug,
|
||
|
|
suppress_consec_slashes=self.suppress_consec_slashes)
|
||
|
|
|
||
|
|
def clone_replace_key(self, key):
|
||
|
|
"""Instantiate a BucketStorageUri from the current BucketStorageUri, by
|
||
|
|
replacing the object name with the object name and other metadata found
|
||
|
|
in the given Key object (including generation).
|
||
|
|
|
||
|
|
@type key: Key
|
||
|
|
@param key: key for the new StorageUri to represent
|
||
|
|
"""
|
||
|
|
self._check_bucket_uri('clone_replace_key')
|
||
|
|
version_id = None
|
||
|
|
generation = None
|
||
|
|
is_latest = False
|
||
|
|
if hasattr(key, 'version_id'):
|
||
|
|
version_id = key.version_id
|
||
|
|
if hasattr(key, 'generation'):
|
||
|
|
generation = key.generation
|
||
|
|
if hasattr(key, 'is_latest'):
|
||
|
|
is_latest = key.is_latest
|
||
|
|
|
||
|
|
return BucketStorageUri(
|
||
|
|
key.provider.get_provider_name(),
|
||
|
|
bucket_name=key.bucket.name,
|
||
|
|
object_name=key.name,
|
||
|
|
debug=self.debug,
|
||
|
|
suppress_consec_slashes=self.suppress_consec_slashes,
|
||
|
|
version_id=version_id,
|
||
|
|
generation=generation,
|
||
|
|
is_latest=is_latest)
|
||
|
|
|
||
|
|
def get_acl(self, validate=False, headers=None, version_id=None):
|
||
|
|
"""returns a bucket's acl"""
|
||
|
|
self._check_bucket_uri('get_acl')
|
||
|
|
bucket = self.get_bucket(validate, headers)
|
||
|
|
# This works for both bucket- and object- level ACLs (former passes
|
||
|
|
# key_name=None):
|
||
|
|
key_name = self.object_name or ''
|
||
|
|
if self.get_provider().name == 'aws':
|
||
|
|
version_id = version_id or self.version_id
|
||
|
|
acl = bucket.get_acl(key_name, headers, version_id)
|
||
|
|
else:
|
||
|
|
acl = bucket.get_acl(key_name, headers, generation=self.generation)
|
||
|
|
self.check_response(acl, 'acl', self.uri)
|
||
|
|
return acl
|
||
|
|
|
||
|
|
def get_def_acl(self, validate=False, headers=None):
|
||
|
|
"""returns a bucket's default object acl"""
|
||
|
|
self._check_bucket_uri('get_def_acl')
|
||
|
|
bucket = self.get_bucket(validate, headers)
|
||
|
|
acl = bucket.get_def_acl(headers)
|
||
|
|
self.check_response(acl, 'acl', self.uri)
|
||
|
|
return acl
|
||
|
|
|
||
|
|
def get_cors(self, validate=False, headers=None):
|
||
|
|
"""returns a bucket's CORS XML"""
|
||
|
|
self._check_bucket_uri('get_cors')
|
||
|
|
bucket = self.get_bucket(validate, headers)
|
||
|
|
cors = bucket.get_cors(headers)
|
||
|
|
self.check_response(cors, 'cors', self.uri)
|
||
|
|
return cors
|
||
|
|
|
||
|
|
def set_cors(self, cors, validate=False, headers=None):
|
||
|
|
"""sets or updates a bucket's CORS XML"""
|
||
|
|
self._check_bucket_uri('set_cors ')
|
||
|
|
bucket = self.get_bucket(validate, headers)
|
||
|
|
if self.scheme == 's3':
|
||
|
|
bucket.set_cors(cors, headers)
|
||
|
|
else:
|
||
|
|
bucket.set_cors(cors.to_xml(), headers)
|
||
|
|
|
||
|
|
def get_location(self, validate=False, headers=None):
|
||
|
|
self._check_bucket_uri('get_location')
|
||
|
|
bucket = self.get_bucket(validate, headers)
|
||
|
|
return bucket.get_location(headers)
|
||
|
|
|
||
|
|
def get_storage_class(self, validate=False, headers=None):
|
||
|
|
self._check_bucket_uri('get_storage_class')
|
||
|
|
# StorageClass is defined as a bucket and object param for GCS, but
|
||
|
|
# only as a key param for S3.
|
||
|
|
if self.scheme != 'gs':
|
||
|
|
raise ValueError('get_storage_class() not supported for %s '
|
||
|
|
'URIs.' % self.scheme)
|
||
|
|
bucket = self.get_bucket(validate, headers)
|
||
|
|
return bucket.get_storage_class(headers)
|
||
|
|
|
||
|
|
def set_storage_class(self, storage_class, validate=False, headers=None):
|
||
|
|
"""Updates a bucket's storage class."""
|
||
|
|
self._check_bucket_uri('set_storage_class')
|
||
|
|
# StorageClass is defined as a bucket and object param for GCS, but
|
||
|
|
# only as a key param for S3.
|
||
|
|
if self.scheme != 'gs':
|
||
|
|
raise ValueError('set_storage_class() not supported for %s '
|
||
|
|
'URIs.' % self.scheme)
|
||
|
|
bucket = self.get_bucket(validate, headers)
|
||
|
|
bucket.set_storage_class(storage_class, headers)
|
||
|
|
|
||
|
|
def get_subresource(self, subresource, validate=False, headers=None,
|
||
|
|
version_id=None):
|
||
|
|
self._check_bucket_uri('get_subresource')
|
||
|
|
bucket = self.get_bucket(validate, headers)
|
||
|
|
return bucket.get_subresource(subresource, self.object_name, headers,
|
||
|
|
version_id)
|
||
|
|
|
||
|
|
def add_group_email_grant(self, permission, email_address, recursive=False,
|
||
|
|
validate=False, headers=None):
|
||
|
|
self._check_bucket_uri('add_group_email_grant')
|
||
|
|
if self.scheme != 'gs':
|
||
|
|
raise ValueError('add_group_email_grant() not supported for %s '
|
||
|
|
'URIs.' % self.scheme)
|
||
|
|
if self.object_name:
|
||
|
|
if recursive:
|
||
|
|
raise ValueError('add_group_email_grant() on key-ful URI cannot '
|
||
|
|
'specify recursive=True')
|
||
|
|
key = self.get_key(validate, headers)
|
||
|
|
self.check_response(key, 'key', self.uri)
|
||
|
|
key.add_group_email_grant(permission, email_address, headers)
|
||
|
|
elif self.bucket_name:
|
||
|
|
bucket = self.get_bucket(validate, headers)
|
||
|
|
bucket.add_group_email_grant(permission, email_address, recursive,
|
||
|
|
headers)
|
||
|
|
else:
|
||
|
|
raise InvalidUriError('add_group_email_grant() on bucket-less URI '
|
||
|
|
'%s' % self.uri)
|
||
|
|
|
||
|
|
def add_email_grant(self, permission, email_address, recursive=False,
|
||
|
|
validate=False, headers=None):
|
||
|
|
self._check_bucket_uri('add_email_grant')
|
||
|
|
if not self.object_name:
|
||
|
|
bucket = self.get_bucket(validate, headers)
|
||
|
|
bucket.add_email_grant(permission, email_address, recursive,
|
||
|
|
headers)
|
||
|
|
else:
|
||
|
|
key = self.get_key(validate, headers)
|
||
|
|
self.check_response(key, 'key', self.uri)
|
||
|
|
key.add_email_grant(permission, email_address)
|
||
|
|
|
||
|
|
def add_user_grant(self, permission, user_id, recursive=False,
|
||
|
|
validate=False, headers=None):
|
||
|
|
self._check_bucket_uri('add_user_grant')
|
||
|
|
if not self.object_name:
|
||
|
|
bucket = self.get_bucket(validate, headers)
|
||
|
|
bucket.add_user_grant(permission, user_id, recursive, headers)
|
||
|
|
else:
|
||
|
|
key = self.get_key(validate, headers)
|
||
|
|
self.check_response(key, 'key', self.uri)
|
||
|
|
key.add_user_grant(permission, user_id)
|
||
|
|
|
||
|
|
def list_grants(self, headers=None):
|
||
|
|
self._check_bucket_uri('list_grants ')
|
||
|
|
bucket = self.get_bucket(headers)
|
||
|
|
return bucket.list_grants(headers)
|
||
|
|
|
||
|
|
def is_file_uri(self):
|
||
|
|
"""Returns True if this URI names a file or directory."""
|
||
|
|
return False
|
||
|
|
|
||
|
|
def is_cloud_uri(self):
|
||
|
|
"""Returns True if this URI names a bucket or object."""
|
||
|
|
return True
|
||
|
|
|
||
|
|
def names_container(self):
|
||
|
|
"""
|
||
|
|
Returns True if this URI names a directory or bucket. Will return
|
||
|
|
False for bucket subdirs; providing bucket subdir semantics needs to
|
||
|
|
be done by the caller (like gsutil does).
|
||
|
|
"""
|
||
|
|
return bool(not self.object_name)
|
||
|
|
|
||
|
|
def names_singleton(self):
|
||
|
|
"""Returns True if this URI names a file or object."""
|
||
|
|
return bool(self.object_name)
|
||
|
|
|
||
|
|
def names_directory(self):
|
||
|
|
"""Returns True if this URI names a directory."""
|
||
|
|
return False
|
||
|
|
|
||
|
|
def names_provider(self):
|
||
|
|
"""Returns True if this URI names a provider."""
|
||
|
|
return bool(not self.bucket_name)
|
||
|
|
|
||
|
|
def names_bucket(self):
|
||
|
|
"""Returns True if this URI names a bucket."""
|
||
|
|
return bool(self.bucket_name) and bool(not self.object_name)
|
||
|
|
|
||
|
|
def names_file(self):
|
||
|
|
"""Returns True if this URI names a file."""
|
||
|
|
return False
|
||
|
|
|
||
|
|
def names_object(self):
|
||
|
|
"""Returns True if this URI names an object."""
|
||
|
|
return self.names_singleton()
|
||
|
|
|
||
|
|
def is_stream(self):
|
||
|
|
"""Returns True if this URI represents input/output stream."""
|
||
|
|
return False
|
||
|
|
|
||
|
|
def create_bucket(self, headers=None, location='', policy=None,
|
||
|
|
storage_class=None):
|
||
|
|
self._check_bucket_uri('create_bucket ')
|
||
|
|
conn = self.connect()
|
||
|
|
# Pass storage_class param only if this is a GCS bucket. (In S3 the
|
||
|
|
# storage class is specified on the key object.)
|
||
|
|
if self.scheme == 'gs':
|
||
|
|
return conn.create_bucket(self.bucket_name, headers, location, policy,
|
||
|
|
storage_class)
|
||
|
|
else:
|
||
|
|
return conn.create_bucket(self.bucket_name, headers, location, policy)
|
||
|
|
|
||
|
|
def delete_bucket(self, headers=None):
|
||
|
|
self._check_bucket_uri('delete_bucket')
|
||
|
|
conn = self.connect()
|
||
|
|
return conn.delete_bucket(self.bucket_name, headers)
|
||
|
|
|
||
|
|
def get_all_buckets(self, headers=None):
|
||
|
|
conn = self.connect()
|
||
|
|
return conn.get_all_buckets(headers)
|
||
|
|
|
||
|
|
def get_provider(self):
|
||
|
|
conn = self.connect()
|
||
|
|
provider = conn.provider
|
||
|
|
self.check_response(provider, 'provider', self.uri)
|
||
|
|
return provider
|
||
|
|
|
||
|
|
def set_acl(self, acl_or_str, key_name='', validate=False, headers=None,
|
||
|
|
version_id=None, if_generation=None, if_metageneration=None):
|
||
|
|
"""Sets or updates a bucket's ACL."""
|
||
|
|
self._check_bucket_uri('set_acl')
|
||
|
|
key_name = key_name or self.object_name or ''
|
||
|
|
bucket = self.get_bucket(validate, headers)
|
||
|
|
if self.generation:
|
||
|
|
bucket.set_acl(
|
||
|
|
acl_or_str, key_name, headers, generation=self.generation,
|
||
|
|
if_generation=if_generation, if_metageneration=if_metageneration)
|
||
|
|
else:
|
||
|
|
version_id = version_id or self.version_id
|
||
|
|
bucket.set_acl(acl_or_str, key_name, headers, version_id)
|
||
|
|
|
||
|
|
def set_xml_acl(self, xmlstring, key_name='', validate=False, headers=None,
|
||
|
|
version_id=None, if_generation=None, if_metageneration=None):
|
||
|
|
"""Sets or updates a bucket's ACL with an XML string."""
|
||
|
|
self._check_bucket_uri('set_xml_acl')
|
||
|
|
key_name = key_name or self.object_name or ''
|
||
|
|
bucket = self.get_bucket(validate, headers)
|
||
|
|
if self.generation:
|
||
|
|
bucket.set_xml_acl(
|
||
|
|
xmlstring, key_name, headers, generation=self.generation,
|
||
|
|
if_generation=if_generation, if_metageneration=if_metageneration)
|
||
|
|
else:
|
||
|
|
version_id = version_id or self.version_id
|
||
|
|
bucket.set_xml_acl(xmlstring, key_name, headers,
|
||
|
|
version_id=version_id)
|
||
|
|
|
||
|
|
def set_def_xml_acl(self, xmlstring, validate=False, headers=None):
|
||
|
|
"""Sets or updates a bucket's default object ACL with an XML string."""
|
||
|
|
self._check_bucket_uri('set_def_xml_acl')
|
||
|
|
self.get_bucket(validate, headers).set_def_xml_acl(xmlstring, headers)
|
||
|
|
|
||
|
|
def set_def_acl(self, acl_or_str, validate=False, headers=None,
|
||
|
|
version_id=None):
|
||
|
|
"""Sets or updates a bucket's default object ACL."""
|
||
|
|
self._check_bucket_uri('set_def_acl')
|
||
|
|
self.get_bucket(validate, headers).set_def_acl(acl_or_str, headers)
|
||
|
|
|
||
|
|
def set_canned_acl(self, acl_str, validate=False, headers=None,
|
||
|
|
version_id=None):
|
||
|
|
"""Sets or updates a bucket's acl to a predefined (canned) value."""
|
||
|
|
self._check_object_uri('set_canned_acl')
|
||
|
|
self._warn_about_args('set_canned_acl', version_id=version_id)
|
||
|
|
key = self.get_key(validate, headers)
|
||
|
|
self.check_response(key, 'key', self.uri)
|
||
|
|
key.set_canned_acl(acl_str, headers)
|
||
|
|
|
||
|
|
def set_def_canned_acl(self, acl_str, validate=False, headers=None,
|
||
|
|
version_id=None):
|
||
|
|
"""Sets or updates a bucket's default object acl to a predefined
|
||
|
|
(canned) value."""
|
||
|
|
self._check_bucket_uri('set_def_canned_acl ')
|
||
|
|
key = self.get_key(validate, headers)
|
||
|
|
self.check_response(key, 'key', self.uri)
|
||
|
|
key.set_def_canned_acl(acl_str, headers, version_id)
|
||
|
|
|
||
|
|
def set_subresource(self, subresource, value, validate=False, headers=None,
|
||
|
|
version_id=None):
|
||
|
|
self._check_bucket_uri('set_subresource')
|
||
|
|
bucket = self.get_bucket(validate, headers)
|
||
|
|
bucket.set_subresource(subresource, value, self.object_name, headers,
|
||
|
|
version_id)
|
||
|
|
|
||
|
|
def set_contents_from_string(self, s, headers=None, replace=True,
|
||
|
|
cb=None, num_cb=10, policy=None, md5=None,
|
||
|
|
reduced_redundancy=False):
|
||
|
|
self._check_object_uri('set_contents_from_string')
|
||
|
|
key = self.new_key(headers=headers)
|
||
|
|
if self.scheme == 'gs':
|
||
|
|
if reduced_redundancy:
|
||
|
|
sys.stderr.write('Warning: GCS does not support '
|
||
|
|
'reduced_redundancy; argument ignored by '
|
||
|
|
'set_contents_from_string')
|
||
|
|
result = key.set_contents_from_string(
|
||
|
|
s, headers, replace, cb, num_cb, policy, md5)
|
||
|
|
else:
|
||
|
|
result = key.set_contents_from_string(
|
||
|
|
s, headers, replace, cb, num_cb, policy, md5,
|
||
|
|
reduced_redundancy)
|
||
|
|
self._update_from_key(key)
|
||
|
|
return result
|
||
|
|
|
||
|
|
def set_contents_from_file(self, fp, headers=None, replace=True, cb=None,
|
||
|
|
num_cb=10, policy=None, md5=None, size=None,
|
||
|
|
rewind=False, res_upload_handler=None):
|
||
|
|
self._check_object_uri('set_contents_from_file')
|
||
|
|
key = self.new_key(headers=headers)
|
||
|
|
if self.scheme == 'gs':
|
||
|
|
result = key.set_contents_from_file(
|
||
|
|
fp, headers, replace, cb, num_cb, policy, md5, size=size,
|
||
|
|
rewind=rewind, res_upload_handler=res_upload_handler)
|
||
|
|
if res_upload_handler:
|
||
|
|
self._update_from_values(None, res_upload_handler.generation,
|
||
|
|
None, md5)
|
||
|
|
else:
|
||
|
|
self._warn_about_args('set_contents_from_file',
|
||
|
|
res_upload_handler=res_upload_handler)
|
||
|
|
result = key.set_contents_from_file(
|
||
|
|
fp, headers, replace, cb, num_cb, policy, md5, size=size,
|
||
|
|
rewind=rewind)
|
||
|
|
self._update_from_key(key)
|
||
|
|
return result
|
||
|
|
|
||
|
|
def set_contents_from_stream(self, fp, headers=None, replace=True, cb=None,
|
||
|
|
policy=None, reduced_redundancy=False):
|
||
|
|
self._check_object_uri('set_contents_from_stream')
|
||
|
|
dst_key = self.new_key(False, headers)
|
||
|
|
result = dst_key.set_contents_from_stream(
|
||
|
|
fp, headers, replace, cb, policy=policy,
|
||
|
|
reduced_redundancy=reduced_redundancy)
|
||
|
|
self._update_from_key(dst_key)
|
||
|
|
return result
|
||
|
|
|
||
|
|
def copy_key(self, src_bucket_name, src_key_name, metadata=None,
|
||
|
|
src_version_id=None, storage_class='STANDARD',
|
||
|
|
preserve_acl=False, encrypt_key=False, headers=None,
|
||
|
|
query_args=None, src_generation=None):
|
||
|
|
"""Returns newly created key."""
|
||
|
|
self._check_object_uri('copy_key')
|
||
|
|
dst_bucket = self.get_bucket(validate=False, headers=headers)
|
||
|
|
if src_generation:
|
||
|
|
return dst_bucket.copy_key(
|
||
|
|
new_key_name=self.object_name,
|
||
|
|
src_bucket_name=src_bucket_name,
|
||
|
|
src_key_name=src_key_name, metadata=metadata,
|
||
|
|
storage_class=storage_class, preserve_acl=preserve_acl,
|
||
|
|
encrypt_key=encrypt_key, headers=headers, query_args=query_args,
|
||
|
|
src_generation=src_generation)
|
||
|
|
else:
|
||
|
|
return dst_bucket.copy_key(
|
||
|
|
new_key_name=self.object_name,
|
||
|
|
src_bucket_name=src_bucket_name, src_key_name=src_key_name,
|
||
|
|
metadata=metadata, src_version_id=src_version_id,
|
||
|
|
storage_class=storage_class, preserve_acl=preserve_acl,
|
||
|
|
encrypt_key=encrypt_key, headers=headers, query_args=query_args)
|
||
|
|
|
||
|
|
def enable_logging(self, target_bucket, target_prefix=None, validate=False,
|
||
|
|
headers=None, version_id=None):
|
||
|
|
self._check_bucket_uri('enable_logging')
|
||
|
|
bucket = self.get_bucket(validate, headers)
|
||
|
|
bucket.enable_logging(target_bucket, target_prefix, headers=headers)
|
||
|
|
|
||
|
|
def disable_logging(self, validate=False, headers=None, version_id=None):
|
||
|
|
self._check_bucket_uri('disable_logging')
|
||
|
|
bucket = self.get_bucket(validate, headers)
|
||
|
|
bucket.disable_logging(headers=headers)
|
||
|
|
|
||
|
|
def get_logging_config(self, validate=False, headers=None, version_id=None):
|
||
|
|
self._check_bucket_uri('get_logging_config')
|
||
|
|
bucket = self.get_bucket(validate, headers)
|
||
|
|
return bucket.get_logging_config(headers=headers)
|
||
|
|
|
||
|
|
def set_website_config(self, main_page_suffix=None, error_key=None,
|
||
|
|
validate=False, headers=None):
|
||
|
|
self._check_bucket_uri('set_website_config')
|
||
|
|
bucket = self.get_bucket(validate, headers)
|
||
|
|
if not (main_page_suffix or error_key):
|
||
|
|
bucket.delete_website_configuration(headers)
|
||
|
|
else:
|
||
|
|
bucket.configure_website(main_page_suffix, error_key, headers)
|
||
|
|
|
||
|
|
def get_website_config(self, validate=False, headers=None):
|
||
|
|
self._check_bucket_uri('get_website_config')
|
||
|
|
bucket = self.get_bucket(validate, headers)
|
||
|
|
return bucket.get_website_configuration(headers)
|
||
|
|
|
||
|
|
def get_versioning_config(self, headers=None):
|
||
|
|
self._check_bucket_uri('get_versioning_config')
|
||
|
|
bucket = self.get_bucket(False, headers)
|
||
|
|
return bucket.get_versioning_status(headers)
|
||
|
|
|
||
|
|
def configure_versioning(self, enabled, headers=None):
|
||
|
|
self._check_bucket_uri('configure_versioning')
|
||
|
|
bucket = self.get_bucket(False, headers)
|
||
|
|
return bucket.configure_versioning(enabled, headers)
|
||
|
|
|
||
|
|
def set_metadata(self, metadata_plus, metadata_minus, preserve_acl,
|
||
|
|
headers=None):
|
||
|
|
return self.get_key(False).set_remote_metadata(metadata_plus,
|
||
|
|
metadata_minus,
|
||
|
|
preserve_acl,
|
||
|
|
headers=headers)
|
||
|
|
|
||
|
|
def compose(self, components, content_type=None, headers=None):
|
||
|
|
self._check_object_uri('compose')
|
||
|
|
component_keys = []
|
||
|
|
for suri in components:
|
||
|
|
component_keys.append(suri.new_key())
|
||
|
|
component_keys[-1].generation = suri.generation
|
||
|
|
self.generation = self.new_key().compose(
|
||
|
|
component_keys, content_type=content_type, headers=headers)
|
||
|
|
self._build_uri_strings()
|
||
|
|
return self
|
||
|
|
|
||
|
|
def get_lifecycle_config(self, validate=False, headers=None):
|
||
|
|
"""Returns a bucket's lifecycle configuration."""
|
||
|
|
self._check_bucket_uri('get_lifecycle_config')
|
||
|
|
bucket = self.get_bucket(validate, headers)
|
||
|
|
lifecycle_config = bucket.get_lifecycle_config(headers)
|
||
|
|
self.check_response(lifecycle_config, 'lifecycle', self.uri)
|
||
|
|
return lifecycle_config
|
||
|
|
|
||
|
|
def configure_lifecycle(self, lifecycle_config, validate=False,
|
||
|
|
headers=None):
|
||
|
|
"""Sets or updates a bucket's lifecycle configuration."""
|
||
|
|
self._check_bucket_uri('configure_lifecycle')
|
||
|
|
bucket = self.get_bucket(validate, headers)
|
||
|
|
bucket.configure_lifecycle(lifecycle_config, headers)
|
||
|
|
|
||
|
|
def get_billing_config(self, headers=None):
|
||
|
|
self._check_bucket_uri('get_billing_config')
|
||
|
|
# billing is defined as a bucket param for GCS, but not for S3.
|
||
|
|
if self.scheme != 'gs':
|
||
|
|
raise ValueError('get_billing_config() not supported for %s '
|
||
|
|
'URIs.' % self.scheme)
|
||
|
|
bucket = self.get_bucket(False, headers)
|
||
|
|
return bucket.get_billing_config(headers)
|
||
|
|
|
||
|
|
def configure_billing(self, requester_pays=False, validate=False,
|
||
|
|
headers=None):
|
||
|
|
"""Sets or updates a bucket's billing configuration."""
|
||
|
|
self._check_bucket_uri('configure_billing')
|
||
|
|
# billing is defined as a bucket param for GCS, but not for S3.
|
||
|
|
if self.scheme != 'gs':
|
||
|
|
raise ValueError('configure_billing() not supported for %s '
|
||
|
|
'URIs.' % self.scheme)
|
||
|
|
bucket = self.get_bucket(validate, headers)
|
||
|
|
bucket.configure_billing(requester_pays=requester_pays, headers=headers)
|
||
|
|
|
||
|
|
def get_encryption_config(self, validate=False, headers=None):
|
||
|
|
"""Returns a GCS bucket's encryption configuration."""
|
||
|
|
self._check_bucket_uri('get_encryption_config')
|
||
|
|
# EncryptionConfiguration is defined as a bucket param for GCS, but not
|
||
|
|
# for S3.
|
||
|
|
if self.scheme != 'gs':
|
||
|
|
raise ValueError('get_encryption_config() not supported for %s '
|
||
|
|
'URIs.' % self.scheme)
|
||
|
|
bucket = self.get_bucket(validate, headers)
|
||
|
|
return bucket.get_encryption_config(headers=headers)
|
||
|
|
|
||
|
|
def set_encryption_config(self, default_kms_key_name=None, validate=False,
|
||
|
|
headers=None):
|
||
|
|
"""Sets a GCS bucket's encryption configuration."""
|
||
|
|
self._check_bucket_uri('set_encryption_config')
|
||
|
|
bucket = self.get_bucket(validate, headers)
|
||
|
|
bucket.set_encryption_config(default_kms_key_name=default_kms_key_name,
|
||
|
|
headers=headers)
|
||
|
|
|
||
|
|
def exists(self, headers=None):
|
||
|
|
"""Returns True if the object exists or False if it doesn't"""
|
||
|
|
if not self.object_name:
|
||
|
|
raise InvalidUriError('exists on object-less URI (%s)' % self.uri)
|
||
|
|
bucket = self.get_bucket(headers)
|
||
|
|
key = bucket.get_key(self.object_name, headers=headers)
|
||
|
|
return bool(key)
|
||
|
|
|
||
|
|
|
||
|
|
class FileStorageUri(StorageUri):
|
||
|
|
"""
|
||
|
|
StorageUri subclass that handles files in the local file system.
|
||
|
|
Callers should instantiate this class by calling boto.storage_uri().
|
||
|
|
|
||
|
|
See file/README about how we map StorageUri operations onto a file system.
|
||
|
|
"""
|
||
|
|
|
||
|
|
delim = os.sep
|
||
|
|
|
||
|
|
def __init__(self, object_name, debug, is_stream=False):
|
||
|
|
"""Instantiate a FileStorageUri from a path name.
|
||
|
|
|
||
|
|
@type object_name: string
|
||
|
|
@param object_name: object name
|
||
|
|
@type debug: boolean
|
||
|
|
@param debug: whether to enable debugging on this StorageUri
|
||
|
|
|
||
|
|
After instantiation the components are available in the following
|
||
|
|
fields: uri, scheme, bucket_name (always blank for this "anonymous"
|
||
|
|
bucket), object_name.
|
||
|
|
"""
|
||
|
|
|
||
|
|
self.scheme = 'file'
|
||
|
|
self.bucket_name = ''
|
||
|
|
self.object_name = object_name
|
||
|
|
self.uri = 'file://' + object_name
|
||
|
|
self.debug = debug
|
||
|
|
self.stream = is_stream
|
||
|
|
|
||
|
|
def clone_replace_name(self, new_name):
|
||
|
|
"""Instantiate a FileStorageUri from the current FileStorageUri,
|
||
|
|
but replacing the object_name.
|
||
|
|
|
||
|
|
@type new_name: string
|
||
|
|
@param new_name: new object name
|
||
|
|
"""
|
||
|
|
return FileStorageUri(new_name, self.debug, self.stream)
|
||
|
|
|
||
|
|
def is_file_uri(self):
|
||
|
|
"""Returns True if this URI names a file or directory."""
|
||
|
|
return True
|
||
|
|
|
||
|
|
def is_cloud_uri(self):
|
||
|
|
"""Returns True if this URI names a bucket or object."""
|
||
|
|
return False
|
||
|
|
|
||
|
|
def names_container(self):
|
||
|
|
"""Returns True if this URI names a directory or bucket."""
|
||
|
|
return self.names_directory()
|
||
|
|
|
||
|
|
def names_singleton(self):
|
||
|
|
"""Returns True if this URI names a file (or stream) or object."""
|
||
|
|
return not self.names_container()
|
||
|
|
|
||
|
|
def names_directory(self):
|
||
|
|
"""Returns True if this URI names a directory."""
|
||
|
|
if self.stream:
|
||
|
|
return False
|
||
|
|
return os.path.isdir(self.object_name)
|
||
|
|
|
||
|
|
def names_provider(self):
|
||
|
|
"""Returns True if this URI names a provider."""
|
||
|
|
return False
|
||
|
|
|
||
|
|
def names_bucket(self):
|
||
|
|
"""Returns True if this URI names a bucket."""
|
||
|
|
return False
|
||
|
|
|
||
|
|
def names_file(self):
|
||
|
|
"""Returns True if this URI names a file."""
|
||
|
|
return self.names_singleton()
|
||
|
|
|
||
|
|
def names_object(self):
|
||
|
|
"""Returns True if this URI names an object."""
|
||
|
|
return False
|
||
|
|
|
||
|
|
def is_stream(self):
|
||
|
|
"""Returns True if this URI represents input/output stream.
|
||
|
|
"""
|
||
|
|
return bool(self.stream)
|
||
|
|
|
||
|
|
def close(self):
|
||
|
|
"""Closes the underlying file.
|
||
|
|
"""
|
||
|
|
self.get_key().close()
|
||
|
|
|
||
|
|
def exists(self, _headers_not_used=None):
|
||
|
|
"""Returns True if the file exists or False if it doesn't"""
|
||
|
|
# The _headers_not_used parameter is ignored. It is only there to ensure
|
||
|
|
# that this method's signature is identical to the exists method on the
|
||
|
|
# BucketStorageUri class.
|
||
|
|
return os.path.exists(self.object_name)
|