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* INCOMPATIBLE File size limiter interface has been changed. * Adds a per bucket maximum file size limit. * File size limits are now checked while writing the object. Signed-off-by: Sami Hiltunen <sami.mikael.hiltunen@cern.ch>
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# -*- coding: utf-8 -*- | ||
# | ||
# This file is part of Invenio. | ||
# Copyright (C) 2016 CERN. | ||
# | ||
# Invenio is free software; you can redistribute it | ||
# and/or modify it under the terms of the GNU General Public License as | ||
# published by the Free Software Foundation; either version 2 of the | ||
# License, or (at your option) any later version. | ||
# | ||
# Invenio is distributed in the hope that it will be | ||
# useful, but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
# General Public License for more details. | ||
# | ||
# You should have received a copy of the GNU General Public License | ||
# along with Invenio; if not, write to the | ||
# Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, | ||
# MA 02111-1307, USA. | ||
# | ||
# In applying this license, CERN does not | ||
# waive the privileges and immunities granted to it by virtue of its status | ||
# as an Intergovernmental Organization or submit itself to any jurisdiction. | ||
|
||
"""File size limiting functionality for Invenio-Files-REST.""" | ||
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from __future__ import absolute_import, print_function | ||
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from collections import namedtuple | ||
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def file_size_limiters(bucket): | ||
"""Default file size limiters.""" | ||
return [ | ||
FileSizeLimit( | ||
bucket.quota_left, | ||
'Bucket quota exceeded.', | ||
), | ||
FileSizeLimit( | ||
bucket.max_file_size, | ||
'Maximum file size exceeded.', | ||
), | ||
] | ||
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||
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class FileSizeLimit(object): | ||
"""File size limiter.""" | ||
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not_implemented_error = NotImplementedError( | ||
'FileSizeLimit support only comparisons with ints and other ' | ||
'FileSizeLimits.') | ||
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def __init__(self, limit, reason): | ||
"""Instantiate a new file size limit.""" | ||
self.limit = limit | ||
self.reason = reason | ||
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def __lt__(self, other): | ||
"""Check if this limit is less than the other one.""" | ||
if isinstance(other, int): | ||
return self.limit < other | ||
elif isinstance(other, FileSizeLimit): | ||
return self.limit < other.limit | ||
raise not_implemented_error | ||
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def __gt__(self, other): | ||
"""Check if this limit is greater than the other one.""" | ||
if isinstance(other, int): | ||
return self.limit > other | ||
elif isinstance(other, FileSizeLimit): | ||
return self.limit > other.limit | ||
raise not_implemented_error | ||
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def __eq__(self, other): | ||
"""Check for equality.""" | ||
if isinstance(other, int): | ||
return self.limit == other | ||
elif isinstance(other, FileSizeLimit): | ||
return self.limit == other.limit | ||
raise not_implemented_error | ||
|
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def __repr__(self): | ||
"""Represent the limit with it's reason.""" | ||
return self.reason |
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