Exemplo n.º 1
0
    def RunCommand(self):
        """Command entry point for the rewrite command."""
        self.continue_on_error = self.parallel_operations
        self.read_args_from_stdin = False
        self.no_preserve_acl = False
        self.supported_transformation_flags = ['-k']
        self.transform_types = []

        self.op_failure_count = 0
        self.current_encryption_tuple, self.current_encryption_sha256 = (
            GetEncryptionTupleAndSha256Hash())

        if self.sub_opts:
            for o, unused_a in self.sub_opts:
                if o == '-f':
                    self.continue_on_error = True
                elif o == '-k':
                    self.transform_types.append(_TransformTypes.CRYPTO_KEY)
                elif o == '-I':
                    self.read_args_from_stdin = True
                elif o == '-O':
                    self.no_preserve_acl = True
                elif o == '-r' or o == '-R':
                    self.recursion_requested = True
                    self.all_versions = True

        if self.read_args_from_stdin:
            if self.args:
                raise CommandException(
                    'No arguments allowed with the -I flag.')
            url_strs = StdinIterator()
        else:
            if not self.args:
                raise CommandException(
                    'The rewrite command (without -I) expects at '
                    'least one URL.')
            url_strs = self.args

        url_strs = GenerationCheckGenerator(url_strs)

        if not self.transform_types:
            raise CommandException(
                'rewrite command requires at least one transformation flag. '
                'Currently supported transformation flags: %s' %
                self.supported_transformation_flags)

        self.preconditions = PreconditionsFromHeaders(self.headers or {})

        # Convert recursive flag to flat wildcard to avoid performing multiple
        # listings.
        if self.recursion_requested:
            url_strs = ConvertRecursiveToFlatWildcard(url_strs)

        # Expand the source argument(s).
        name_expansion_iterator = NameExpansionIterator(
            self.command_name,
            self.debug,
            self.logger,
            self.gsutil_api,
            url_strs,
            self.recursion_requested,
            project_id=self.project_id,
            continue_on_error=self.continue_on_error
            or self.parallel_operations)

        # Perform rewrite requests in parallel (-m) mode, if requested.
        self.Apply(_RewriteFuncWrapper,
                   name_expansion_iterator,
                   _RewriteExceptionHandler,
                   fail_on_error=(not self.continue_on_error),
                   shared_attrs=['op_failure_count'])

        if self.op_failure_count:
            plural_str = 's' if self.op_failure_count else ''
            raise CommandException(
                '%d file%s/object%s could not be rewritten.' %
                (self.op_failure_count, plural_str, plural_str))

        return 0
Exemplo n.º 2
0
    def RunCommand(self):
        """Command entry point for the rewrite command."""
        self.continue_on_error = self.parallel_operations
        self.dest_storage_class = None
        self.no_preserve_acl = False
        self.read_args_from_stdin = False
        self.supported_transformation_flags = ['-k', '-s']
        self.transform_types = set()

        self.op_failure_count = 0
        self.boto_file_encryption_tuple, self.boto_file_encryption_sha256 = (
            GetEncryptionTupleAndSha256Hash())

        if self.sub_opts:
            for o, a in self.sub_opts:
                if o == '-f':
                    self.continue_on_error = True
                elif o == '-k':
                    self.transform_types.add(_TransformTypes.CRYPTO_KEY)
                elif o == '-I':
                    self.read_args_from_stdin = True
                elif o == '-O':
                    self.no_preserve_acl = True
                elif o == '-r' or o == '-R':
                    self.recursion_requested = True
                    self.all_versions = True
                elif o == '-s':
                    self.transform_types.add(_TransformTypes.STORAGE_CLASS)
                    self.dest_storage_class = NormalizeStorageClass(a)

        if self.read_args_from_stdin:
            if self.args:
                raise CommandException(
                    'No arguments allowed with the -I flag.')
            url_strs = StdinIterator()
        else:
            if not self.args:
                raise CommandException(
                    'The rewrite command (without -I) expects at '
                    'least one URL.')
            url_strs = self.args

        if not self.transform_types:
            raise CommandException(
                'rewrite command requires at least one transformation flag. '
                'Currently supported transformation flags: %s' %
                self.supported_transformation_flags)

        self.preconditions = PreconditionsFromHeaders(self.headers or {})

        url_strs_generator = GenerationCheckGenerator(url_strs)

        # Convert recursive flag to flat wildcard to avoid performing multiple
        # listings.
        if self.recursion_requested:
            url_strs_generator = ConvertRecursiveToFlatWildcard(
                url_strs_generator)

        # Expand the source argument(s).
        name_expansion_iterator = NameExpansionIterator(
            self.command_name,
            self.debug,
            self.logger,
            self.gsutil_api,
            url_strs_generator,
            self.recursion_requested,
            project_id=self.project_id,
            continue_on_error=self.continue_on_error
            or self.parallel_operations,
            bucket_listing_fields=['name', 'size'])

        seek_ahead_iterator = None
        # Cannot seek ahead with stdin args, since we can only iterate them
        # once without buffering in memory.
        if not self.read_args_from_stdin:
            # Perform the same recursive-to-flat conversion on original url_strs so
            # that it is as true to the original iterator as possible.
            seek_ahead_url_strs = ConvertRecursiveToFlatWildcard(url_strs)
            seek_ahead_iterator = SeekAheadNameExpansionIterator(
                self.command_name,
                self.debug,
                self.GetSeekAheadGsutilApi(),
                seek_ahead_url_strs,
                self.recursion_requested,
                all_versions=self.all_versions,
                project_id=self.project_id)

        # Perform rewrite requests in parallel (-m) mode, if requested.
        self.Apply(_RewriteFuncWrapper,
                   name_expansion_iterator,
                   _RewriteExceptionHandler,
                   fail_on_error=(not self.continue_on_error),
                   shared_attrs=['op_failure_count'],
                   seek_ahead_iterator=seek_ahead_iterator)

        if self.op_failure_count:
            plural_str = 's' if self.op_failure_count else ''
            raise CommandException(
                '%d file%s/object%s could not be rewritten.' %
                (self.op_failure_count, plural_str, plural_str))

        return 0
Exemplo n.º 3
0
    def RunCommand(self):
        """Command entry point for the rewrite command."""
        self.continue_on_error = self.parallel_operations
        self.csek_hash_to_keywrapper = {}
        self.dest_storage_class = None
        self.no_preserve_acl = False
        self.read_args_from_stdin = False
        self.supported_transformation_flags = ['-k', '-s']
        self.transform_types = set()

        self.op_failure_count = 0
        self.boto_file_encryption_keywrapper = GetEncryptionKeyWrapper(config)
        self.boto_file_encryption_sha256 = (
            self.boto_file_encryption_keywrapper.crypto_key_sha256
            if self.boto_file_encryption_keywrapper else None)

        if self.sub_opts:
            for o, a in self.sub_opts:
                if o == '-f':
                    self.continue_on_error = True
                elif o == '-k':
                    self.transform_types.add(_TransformTypes.CRYPTO_KEY)
                elif o == '-I':
                    self.read_args_from_stdin = True
                elif o == '-O':
                    self.no_preserve_acl = True
                elif o == '-r' or o == '-R':
                    self.recursion_requested = True
                    self.all_versions = True
                elif o == '-s':
                    self.transform_types.add(_TransformTypes.STORAGE_CLASS)
                    self.dest_storage_class = NormalizeStorageClass(a)

        if self.read_args_from_stdin:
            if self.args:
                raise CommandException(
                    'No arguments allowed with the -I flag.')
            url_strs = StdinIterator()
        else:
            if not self.args:
                raise CommandException(
                    'The rewrite command (without -I) expects at '
                    'least one URL.')
            url_strs = self.args

        if not self.transform_types:
            raise CommandException(
                'rewrite command requires at least one transformation flag. '
                'Currently supported transformation flags: %s' %
                self.supported_transformation_flags)

        self.preconditions = PreconditionsFromHeaders(self.headers or {})

        url_strs_generator = GenerationCheckGenerator(url_strs)

        # Convert recursive flag to flat wildcard to avoid performing multiple
        # listings.
        if self.recursion_requested:
            url_strs_generator = ConvertRecursiveToFlatWildcard(
                url_strs_generator)

        # Expand the source argument(s).
        name_expansion_iterator = NameExpansionIterator(
            self.command_name,
            self.debug,
            self.logger,
            self.gsutil_api,
            url_strs_generator,
            self.recursion_requested,
            project_id=self.project_id,
            continue_on_error=self.continue_on_error
            or self.parallel_operations,
            bucket_listing_fields=['name', 'size'])

        seek_ahead_iterator = None
        # Cannot seek ahead with stdin args, since we can only iterate them
        # once without buffering in memory.
        if not self.read_args_from_stdin:
            # Perform the same recursive-to-flat conversion on original url_strs so
            # that it is as true to the original iterator as possible.
            seek_ahead_url_strs = ConvertRecursiveToFlatWildcard(url_strs)
            seek_ahead_iterator = SeekAheadNameExpansionIterator(
                self.command_name,
                self.debug,
                self.GetSeekAheadGsutilApi(),
                seek_ahead_url_strs,
                self.recursion_requested,
                all_versions=self.all_versions,
                project_id=self.project_id)

        # Rather than have each worker repeatedly calculate the sha256 hash for each
        # decryption_key in the boto config, do this once now and cache the results.
        for i in range(0, MAX_DECRYPTION_KEYS):
            key_number = i + 1
            keywrapper = CryptoKeyWrapperFromKey(
                config.get('GSUtil', 'decryption_key%s' % str(key_number),
                           None))
            if keywrapper is None:
                # Stop at first attribute absence in lexicographical iteration.
                break
            if keywrapper.crypto_type == CryptoKeyType.CSEK:
                self.csek_hash_to_keywrapper[
                    keywrapper.crypto_key_sha256] = keywrapper
        # Also include the encryption_key, since it should be used to decrypt and
        # then encrypt if the object's CSEK should remain the same.
        if self.boto_file_encryption_sha256 is not None:
            self.csek_hash_to_keywrapper[self.boto_file_encryption_sha256] = (
                self.boto_file_encryption_keywrapper)

        # Perform rewrite requests in parallel (-m) mode, if requested.
        self.Apply(_RewriteFuncWrapper,
                   name_expansion_iterator,
                   _RewriteExceptionHandler,
                   fail_on_error=(not self.continue_on_error),
                   shared_attrs=['op_failure_count'],
                   seek_ahead_iterator=seek_ahead_iterator)

        if self.op_failure_count:
            plural_str = 's' if self.op_failure_count else ''
            raise CommandException(
                '%d file%s/object%s could not be rewritten.' %
                (self.op_failure_count, plural_str, plural_str))

        return 0