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opt/gsutil/gslib/commands/ubla.py 0000644 00000024064 15025122374 0013062 0 ustar 00 # -*- coding: utf-8 -*- # Copyright 2018 Google Inc. All Rights Reserved. # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. """This module provides the command to gsutil.""" from __future__ import absolute_import from __future__ import print_function import getopt import textwrap from gslib import metrics from gslib.command import Command from gslib.command_argument import CommandArgument from gslib.cs_api_map import ApiSelector from gslib.exception import CommandException from gslib.exception import NO_URLS_MATCHED_TARGET from gslib.help_provider import CreateHelpText from gslib.third_party.storage_apitools import storage_v1_messages as apitools_messages from gslib.utils.constants import NO_MAX from gslib.utils.shim_util import GcloudStorageMap from gslib.utils.text_util import InsistOnOrOff from gslib.utils import shim_util _SET_SYNOPSIS = """ gsutil ubla set (on|off) gs://<bucket_name>... """ _GET_SYNOPSIS = """ gsutil ubla get bucket_url... """ _SYNOPSIS = _SET_SYNOPSIS + _GET_SYNOPSIS.lstrip('\n') _SET_DESCRIPTION = """ <B>SET</B> The ``ubla set`` command enables or disables uniform bucket-level access for Google Cloud Storage buckets. <B>SET EXAMPLES</B> Configure your buckets to use uniform bucket-level access: gsutil ubla set on gs://redbucket gs://bluebucket Configure your buckets to NOT use uniform bucket-level access: gsutil ubla set off gs://redbucket gs://bluebucket """ _GET_DESCRIPTION = """ <B>GET</B> The ``ubla get`` command shows whether uniform bucket-level access is enabled for the specified Cloud Storage bucket(s). <B>GET EXAMPLES</B> Check if your buckets are using uniform bucket-level access: gsutil ubla get gs://redbucket gs://bluebucket """ _DESCRIPTION = """ The ``ubla`` command is used to retrieve or configure the `uniform bucket-level access <https://cloud.google.com/storage/docs/bucket-policy-only>`_ setting of Cloud Storage bucket(s). This command has two sub-commands, ``get`` and ``set``. """ + _GET_DESCRIPTION + _SET_DESCRIPTION _DETAILED_HELP_TEXT = CreateHelpText(_SYNOPSIS, _DESCRIPTION) _set_help_text = CreateHelpText(_SET_SYNOPSIS, _SET_DESCRIPTION) _get_help_text = CreateHelpText(_GET_SYNOPSIS, _GET_DESCRIPTION) # Aliases to make these more likely to fit on one line. IamConfigurationValue = apitools_messages.Bucket.IamConfigurationValue uniformBucketLevelAccessValue = IamConfigurationValue.BucketPolicyOnlyValue _GCLOUD_FORMAT_STRING = ( '--format=' + 'multi[terminator="' + shim_util.get_format_flag_newline() + '"](name:format="value(format(\'Uniform bucket-level' + ' access setting for gs://{}:\'))",' + ' iamConfiguration.uniformBucketLevelAccess.enabled.yesno(no="False")' + ':format="value[terminator=\'' + shim_util.get_format_flag_newline() + '\'](format(\' Enabled: {}\'))",' + ' iamConfiguration.uniformBucketLevelAccess.lockedTime.sub("T", " ")' + ':format="value(format(\' LockedTime: {}\'))")') class UblaCommand(Command): """Implements the gsutil ubla command.""" command_spec = Command.CreateCommandSpec( 'ubla', command_name_aliases=['uniformbucketlevelaccess'], usage_synopsis=_SYNOPSIS, min_args=2, max_args=NO_MAX, supported_sub_args='', file_url_ok=False, provider_url_ok=False, urls_start_arg=2, gs_api_support=[ApiSelector.JSON], gs_default_api=ApiSelector.JSON, argparse_arguments={ 'get': [CommandArgument.MakeNCloudURLsArgument(1),], 'set': [ CommandArgument('mode', choices=['on', 'off']), CommandArgument.MakeZeroOrMoreCloudBucketURLsArgument() ], }) # Help specification. See help_provider.py for documentation. help_spec = Command.HelpSpec( help_name='ubla', help_name_aliases=['uniformbucketlevelaccess'], help_type='command_help', help_one_line_summary='Configure Uniform bucket-level access', help_text=_DETAILED_HELP_TEXT, subcommand_help_text={ 'get': _get_help_text, 'set': _set_help_text, }, ) gcloud_storage_map = GcloudStorageMap( gcloud_command={ 'get': GcloudStorageMap( gcloud_command=[ 'storage', 'buckets', 'list', _GCLOUD_FORMAT_STRING, '--raw' ], flag_map={}, ), 'set': GcloudStorageMap( gcloud_command={ 'on': GcloudStorageMap( gcloud_command=[ 'storage', 'buckets', 'update', '--uniform-bucket-level-access', ], flag_map={}, ), 'off': GcloudStorageMap( gcloud_command=[ 'storage', 'buckets', 'update', '--no-uniform-bucket-level-access', ], flag_map={}, ), }, flag_map={}, ) }, flag_map={}, ) def _ValidateBucketListingRefAndReturnBucketName(self, blr): if blr.storage_url.scheme != 'gs': raise CommandException( 'The %s command can only be used with gs:// bucket URLs.' % self.command_name) def _GetUbla(self, blr): """Gets the Uniform bucket-level access setting for a bucket.""" self._ValidateBucketListingRefAndReturnBucketName(blr) bucket_url = blr.storage_url bucket_metadata = self.gsutil_api.GetBucket(bucket_url.bucket_name, fields=['iamConfiguration'], provider=bucket_url.scheme) iam_config = bucket_metadata.iamConfiguration # TODO(mynameisrafe): Replace bucketPolicyOnly with uniformBucketLevelAccess # when the property is live. uniform_bucket_level_access = iam_config.bucketPolicyOnly fields = { 'bucket': str(bucket_url).rstrip('/'), 'enabled': uniform_bucket_level_access.enabled } locked_time_line = '' if uniform_bucket_level_access.lockedTime: fields['locked_time'] = uniform_bucket_level_access.lockedTime locked_time_line = ' LockedTime: {locked_time}\n' if uniform_bucket_level_access: print(('Uniform bucket-level access setting for {bucket}:\n' ' Enabled: {enabled}\n' + locked_time_line).format(**fields)) def _SetUbla(self, blr, setting_arg): """Sets the Uniform bucket-level access setting for a bucket on or off.""" self._ValidateBucketListingRefAndReturnBucketName(blr) bucket_url = blr.storage_url iam_config = IamConfigurationValue() # TODO(mynameisrafe): Replace bucketPolicyOnly with uniformBucketLevelAccess # when the property is live. iam_config.bucketPolicyOnly = uniformBucketLevelAccessValue() iam_config.bucketPolicyOnly.enabled = (setting_arg == 'on') bucket_metadata = apitools_messages.Bucket(iamConfiguration=iam_config) setting_verb = 'Enabling' if setting_arg == 'on' else 'Disabling' print('%s Uniform bucket-level access for %s...' % (setting_verb, str(bucket_url).rstrip('/'))) self.gsutil_api.PatchBucket(bucket_url.bucket_name, bucket_metadata, fields=['iamConfiguration'], provider=bucket_url.scheme) return 0 def _Ubla(self): """Handles ubla command on a Cloud Storage bucket.""" subcommand = self.args.pop(0) if subcommand not in ('get', 'set'): raise CommandException('ubla only supports get|set') subcommand_func = None subcommand_args = [] setting_arg = None if subcommand == 'get': subcommand_func = self._GetUbla elif subcommand == 'set': subcommand_func = self._SetUbla setting_arg = self.args.pop(0) InsistOnOrOff(setting_arg, 'Only on and off values allowed for set option') subcommand_args.append(setting_arg) # Iterate over bucket args, performing the specified subsubcommand. some_matched = False url_args = self.args if not url_args: self.RaiseWrongNumberOfArgumentsException() for url_str in url_args: # Throws a CommandException if the argument is not a bucket. bucket_iter = self.GetBucketUrlIterFromArg(url_str) for bucket_listing_ref in bucket_iter: some_matched = True subcommand_func(bucket_listing_ref, *subcommand_args) if not some_matched: raise CommandException(NO_URLS_MATCHED_TARGET % list(url_args)) return 0 def RunCommand(self): """Command entry point for the ubla command.""" if self.gsutil_api.GetApiSelector(provider='gs') != ApiSelector.JSON: raise CommandException('\n'.join( textwrap.wrap( 'The "%s" command can only be used with the Cloud Storage JSON API.' % self.command_name))) action_subcommand = self.args[0] self.ParseSubOpts(check_args=True) if action_subcommand == 'get' or action_subcommand == 'set': metrics.LogCommandParams(sub_opts=self.sub_opts) metrics.LogCommandParams(subcommands=[action_subcommand]) self._Ubla() else: raise CommandException('Invalid subcommand "%s", use get|set instead.' % action_subcommand)
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