56 lines
2.2 KiB
Python
56 lines
2.2 KiB
Python
# Copyright (c) 2011 Citrix Systems, Inc.
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# Copyright 2011 OpenStack Foundation
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# 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, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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"""Classes to handle image files
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Collection of classes to handle image upload/download to/from Image service
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(like Glance image storage and retrieval service) from/to ESX/ESXi server.
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"""
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import urllib
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from oslo_utils import netutils
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from oslo_vmware import rw_handles
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class VMwareHTTPReadFile(rw_handles.FileHandle):
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"""VMware file read handler class."""
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def __init__(self, host, port, data_center_name, datastore_name, cookies,
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file_path, scheme="https"):
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self._base_url = self._get_base_url(scheme, host, port, file_path)
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param_list = {"dcPath": data_center_name, "dsName": datastore_name}
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self._base_url = self._base_url + "?" + urllib.urlencode(param_list)
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self._conn = self._create_read_connection(self._base_url,
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cookies=cookies)
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rw_handles.FileHandle.__init__(self, self._conn)
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def read(self, chunk_size):
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return self._file_handle.read(rw_handles.READ_CHUNKSIZE)
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def _get_base_url(self, scheme, host, port, file_path):
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if netutils.is_valid_ipv6(host):
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base_url = "%s://[%s]:%s/folder/%s" % (scheme, host, port,
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urllib.pathname2url(file_path))
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else:
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base_url = "%s://%s:%s/folder/%s" % (scheme, host, port,
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urllib.pathname2url(file_path))
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return base_url
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def get_size(self):
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"""Get size of the file to be read."""
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return self._file_handle.headers.get("Content-Length", -1)
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