82 lines
2.6 KiB
Python
82 lines
2.6 KiB
Python
# Copyright (c) 2010-2014 OpenStack Foundation.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from swift.common.utils import public, get_swift_info, config_true_value
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from swift.common.middleware.s3api.controllers.base import Controller, \
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bucket_operation
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from swift.common.middleware.s3api.etree import Element, tostring, \
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fromstring, XMLSyntaxError, DocumentInvalid, SubElement
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from swift.common.middleware.s3api.s3response import HTTPOk, \
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S3NotImplemented, MalformedXML
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MAX_PUT_VERSIONING_BODY_SIZE = 10240
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class VersioningController(Controller):
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"""
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Handles the following APIs:
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* GET Bucket versioning
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* PUT Bucket versioning
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Those APIs are logged as VERSIONING operations in the S3 server log.
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"""
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@public
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@bucket_operation
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def GET(self, req):
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"""
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Handles GET Bucket versioning.
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"""
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sysmeta = req.get_container_info(self.app).get('sysmeta', {})
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elem = Element('VersioningConfiguration')
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if sysmeta.get('versions-enabled'):
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SubElement(elem, 'Status').text = (
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'Enabled' if config_true_value(sysmeta['versions-enabled'])
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else 'Suspended')
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body = tostring(elem)
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return HTTPOk(body=body, content_type=None)
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@public
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@bucket_operation
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def PUT(self, req):
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"""
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Handles PUT Bucket versioning.
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"""
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if 'object_versioning' not in get_swift_info():
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raise S3NotImplemented()
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xml = req.xml(MAX_PUT_VERSIONING_BODY_SIZE)
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try:
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elem = fromstring(xml, 'VersioningConfiguration')
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status = elem.find('./Status').text
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except (XMLSyntaxError, DocumentInvalid):
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raise MalformedXML()
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except Exception as e:
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self.logger.error(e)
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raise
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if status not in ['Enabled', 'Suspended']:
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raise MalformedXML()
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# Set up versioning
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# NB: object_versioning responsible for ensuring its container exists
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req.headers['X-Versions-Enabled'] = str(status == 'Enabled').lower()
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req.get_response(self.app, 'POST')
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return HTTPOk()
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