Repository navigation
Expand file tree
/
Copy pathxml_marshal.py
More file actions
296 lines (254 loc) · 11.5 KB
/
Copy pathxml_marshal.py
File metadata and controls
296 lines (254 loc) · 11.5 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
# -*- coding: utf-8 -*-
# MinIO Python Library for Amazon S3 Compatible Cloud Storage, (C)
# 2015, 2016, 2017, 2018, 2019 MinIO, Inc.
#
# 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.
"""
minio.xml_marshal
~~~~~~~~~~~~~~~
This module contains the simple wrappers for XML marshaller's.
:copyright: (c) 2015 by MinIO, Inc.
:license: Apache 2.0, see LICENSE for more details.
"""
from __future__ import absolute_import
import io
from xml.etree import ElementTree as s3_xml
_S3_NAMESPACE = 'http://s3.amazonaws.com/doc/2006-03-01/'
def xml_marshal_bucket_constraint(region):
"""
Marshal's bucket constraint based on *region*.
:param region: Region name of a given bucket.
:return: Marshalled XML data.
"""
root = s3_xml.Element('CreateBucketConfiguration', {'xmlns': _S3_NAMESPACE})
location_constraint = s3_xml.SubElement(root, 'LocationConstraint')
location_constraint.text = region
data = io.BytesIO()
s3_xml.ElementTree(root).write(data, encoding=None, xml_declaration=False)
return data.getvalue()
def xml_marshal_select(opts):
root = s3_xml.Element('SelectObjectContentRequest')
expression = s3_xml.SubElement(root, 'Expression')
expression.text = opts.expression
expression_type = s3_xml.SubElement(root, 'ExpressionType')
expression_type.text = 'SQL'
input_serialization = s3_xml.SubElement(root, 'InputSerialization')
if opts.in_ser.csv_input is not None:
compression_type = s3_xml.SubElement(input_serialization, 'CompressionType')
compression_type.text = opts.in_ser.compression_type
csv = s3_xml.SubElement(input_serialization, 'CSV')
file_header_info = s3_xml.SubElement(csv, 'FileHeaderInfo')
file_header_info.text = opts.in_ser.csv_input.FileHeaderInfo
record_delimiter = s3_xml.SubElement(csv, 'RecordDelimiter')
record_delimiter.text = opts.in_ser.csv_input.RecordDelimiter
field_delimiter = s3_xml.SubElement(csv, 'FieldDelimiter')
field_delimiter.text = opts.in_ser.csv_input.FieldDelimiter
quote_character = s3_xml.SubElement(csv, 'QuoteCharacter')
quote_character.text = opts.in_ser.csv_input.QuoteCharacter
quote_escape_character = s3_xml.SubElement(csv, 'QuoteEscapeCharacter')
quote_escape_character.text = opts.in_ser.csv_input.QuoteEscapeCharacter
comments = s3_xml.SubElement(csv, 'Comments')
comments.text = opts.in_ser.csv_input.Comments
allow_quoted_record_delimiter = s3_xml.SubElement(csv, 'AllowQuotedRecordDelimiter')
allow_quoted_record_delimiter.text = opts.in_ser.csv_input.AllowQuotedRecordDelimiter.lower()
if opts.in_ser.json_input is not None:
compression_type = s3_xml.SubElement(input_serialization, 'CompressionType')
compression_type.text = opts.in_ser.compression_type
json = s3_xml.SubElement(input_serialization, 'JSON')
type_input = s3_xml.SubElement(json, 'Type')
type_input.text = opts.in_ser.json_input.Type
if opts.in_ser.parquet_input is not None:
compression_type = s3_xml.SubElement(input_serialization, 'CompressionType')
compression_type.text = opts.in_ser.compression_type
s3_xml.SubElement(input_serialization, 'Parquet')
output_serialization = s3_xml.SubElement(root, 'OutputSerialization')
if opts.out_ser.csv_output is not None:
csv = s3_xml.SubElement(output_serialization, 'CSV')
quote_field = s3_xml.SubElement(csv, 'QuoteFields')
quote_field.text = opts.out_ser.csv_output.QuoteFields
record_delimiter = s3_xml.SubElement(csv, 'RecordDelimiter')
record_delimiter.text = opts.out_ser.csv_output.RecordDelimiter
field_delimiter = s3_xml.SubElement(csv, 'FieldDelimiter')
field_delimiter.text = opts.out_ser.csv_output.FieldDelimiter
quote_character = s3_xml.SubElement(csv, 'QuoteCharacter')
quote_character.text = opts.out_ser.csv_output.QuoteCharacter
quote_escape_character = s3_xml.SubElement(csv, 'QuoteEscapeCharacter')
quote_escape_character.text = opts.out_ser.csv_output.QuoteEscapeCharacter
if opts.out_ser.json_output is not None:
json = s3_xml.SubElement(output_serialization, 'JSON')
record_delimiter = s3_xml.SubElement(json, 'RecordDelimiter')
record_delimiter.text = opts.out_ser.json_output.RecordDelimiter
request_progress = s3_xml.SubElement(root, 'RequestProgress')
enabled = s3_xml.SubElement(request_progress, 'Enabled')
enabled.text = opts.req_progress.enabled.lower()
data = io.BytesIO()
s3_xml.ElementTree(root).write(data, encoding=None, xml_declaration=False)
return data.getvalue()
def xml_marshal_complete_multipart_upload(uploaded_parts):
"""
Marshal's complete multipart upload request based on *uploaded_parts*.
:param uploaded_parts: List of all uploaded parts, ordered by part number.
:return: Marshalled XML data.
"""
root = s3_xml.Element('CompleteMultipartUpload', {'xmlns': _S3_NAMESPACE})
for uploaded_part in uploaded_parts:
part_number = uploaded_part.part_number
part = s3_xml.SubElement(root, 'Part')
part_num = s3_xml.SubElement(part, 'PartNumber')
part_num.text = str(part_number)
etag = s3_xml.SubElement(part, 'ETag')
etag.text = '"' + uploaded_part.etag + '"'
data = io.BytesIO()
s3_xml.ElementTree(root).write(data, encoding=None,
xml_declaration=False)
return data.getvalue()
def xml_marshal_bucket_notifications(notifications):
"""
Marshals the notifications structure for sending to S3 compatible storage
:param notifications: Dictionary with following structure:
{
'TopicConfigurations': [
{
'Id': 'string',
'Arn': 'string',
'Events': [
's3:ReducedRedundancyLostObject'|'s3:ObjectCreated:*'|'s3:ObjectCreated:Put'|'s3:ObjectCreated:Post'|'s3:ObjectCreated:Copy'|'s3:ObjectCreated:CompleteMultipartUpload'|'s3:ObjectRemoved:*'|'s3:ObjectRemoved:Delete'|'s3:ObjectRemoved:DeleteMarkerCreated',
],
'Filter': {
'Key': {
'FilterRules': [
{
'Name': 'prefix'|'suffix',
'Value': 'string'
},
]
}
}
},
],
'QueueConfigurations': [
{
'Id': 'string',
'Arn': 'string',
'Events': [
's3:ReducedRedundancyLostObject'|'s3:ObjectCreated:*'|'s3:ObjectCreated:Put'|'s3:ObjectCreated:Post'|'s3:ObjectCreated:Copy'|'s3:ObjectCreated:CompleteMultipartUpload'|'s3:ObjectRemoved:*'|'s3:ObjectRemoved:Delete'|'s3:ObjectRemoved:DeleteMarkerCreated',
],
'Filter': {
'Key': {
'FilterRules': [
{
'Name': 'prefix'|'suffix',
'Value': 'string'
},
]
}
}
},
],
'CloudFunctionConfigurations': [
{
'Id': 'string',
'Arn': 'string',
'Events': [
's3:ReducedRedundancyLostObject'|'s3:ObjectCreated:*'|'s3:ObjectCreated:Put'|'s3:ObjectCreated:Post'|'s3:ObjectCreated:Copy'|'s3:ObjectCreated:CompleteMultipartUpload'|'s3:ObjectRemoved:*'|'s3:ObjectRemoved:Delete'|'s3:ObjectRemoved:DeleteMarkerCreated',
],
'Filter': {
'Key': {
'FilterRules': [
{
'Name': 'prefix'|'suffix',
'Value': 'string'
},
]
}
}
},
]
}
:return: Marshalled XML data
"""
root = s3_xml.Element('NotificationConfiguration', {'xmlns': _S3_NAMESPACE})
_add_notification_config_to_xml(
root,
'TopicConfiguration',
notifications.get('TopicConfigurations', [])
)
_add_notification_config_to_xml(
root,
'QueueConfiguration',
notifications.get('QueueConfigurations', [])
)
_add_notification_config_to_xml(
root,
'CloudFunctionConfiguration',
notifications.get('CloudFunctionConfigurations', [])
)
data = io.BytesIO()
s3_xml.ElementTree(root).write(data, encoding=None, xml_declaration=False)
return data.getvalue()
NOTIFICATIONS_ARN_FIELDNAME_MAP = {
'TopicConfiguration': 'Topic',
'QueueConfiguration': 'Queue',
'CloudFunctionConfiguration': 'CloudFunction',
}
def _add_notification_config_to_xml(node, element_name, configs):
"""
Internal function that builds the XML sub-structure for a given
kind of notification configuration.
"""
for config in configs:
config_node = s3_xml.SubElement(node, element_name)
if 'Id' in config:
id_node = s3_xml.SubElement(config_node, 'Id')
id_node.text = config['Id']
arn_node = s3_xml.SubElement(
config_node,
NOTIFICATIONS_ARN_FIELDNAME_MAP[element_name]
)
arn_node.text = config['Arn']
for event in config['Events']:
event_node = s3_xml.SubElement(config_node, 'Event')
event_node.text = event
filter_rules = config.get('Filter', {}).get(
'Key', {}).get('FilterRules', [])
if filter_rules:
filter_node = s3_xml.SubElement(config_node, 'Filter')
s3key_node = s3_xml.SubElement(filter_node, 'S3Key')
for filter_rule in filter_rules:
filter_rule_node = s3_xml.SubElement(s3key_node, 'FilterRule')
name_node = s3_xml.SubElement(filter_rule_node, 'Name')
name_node.text = filter_rule['Name']
value_node = s3_xml.SubElement(filter_rule_node, 'Value')
value_node.text = filter_rule['Value']
return node
def xml_marshal_delete_objects(object_names):
"""
Marshal Multi-Object Delete request body from object names.
:param object_names: List of object keys to be deleted.
:return: Serialized XML string for multi-object delete request body.
"""
root = s3_xml.Element('Delete')
# use quiet mode in the request - this causes the S3 Server to
# limit its response to only object keys that had errors during
# the delete operation.
quiet = s3_xml.SubElement(root, 'Quiet')
quiet.text = "true"
# add each object to the request.
for object_name in object_names:
object_elt = s3_xml.SubElement(root, 'Object')
key_elt = s3_xml.SubElement(object_elt, 'Key')
key_elt.text = object_name
# return the marshalled xml.
data = io.BytesIO()
s3_xml.ElementTree(root).write(data, encoding=None, xml_declaration=False)
return data.getvalue()