/usr/lib/python2.7/dist-packages/botocore/response.py is in python-botocore 0.29.0+repack-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 | # Copyright (c) 2012-2013 Mitch Garnaat http://garnaat.org/
# Copyright 2012-2013 Amazon.com, Inc. or its affiliates. All Rights Reserved.
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish, dis-
# tribute, sublicense, and/or sell copies of the Software, and to permit
# persons to whom the Software is furnished to do so, subject to the fol-
# lowing conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABIL-
# ITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
# SHALL THE AUTHOR BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
# IN THE SOFTWARE.
#
import sys
import xml.etree.cElementTree
from botocore import ScalarTypes
from .hooks import first_non_none_response
from botocore.compat import json
import logging
logger = logging.getLogger(__name__)
class Response(object):
def __init__(self, session, operation):
self.session = session
self.operation = operation
self.value = {}
def parse(self, s, encoding):
pass
def get_value(self):
value = ''
if self.value:
value = self.value
return value
def merge_header_values(self, headers):
pass
class XmlResponse(Response):
def __init__(self, session, operation):
Response.__init__(self, session, operation)
self.tree = None
self.element_map = {}
self.value = {}
self._parent = None
def clark_notation(self, tag):
return '{%s}%s' % (self.operation.service.xmlnamespace, tag)
def get_element_base_tag(self, elem):
if '}' in elem.tag:
elem_tag = elem.tag.split('}')[1]
else:
elem_tag = elem.tag
return elem_tag
def parse(self, s, encoding):
parser = xml.etree.cElementTree.XMLParser(
target=xml.etree.cElementTree.TreeBuilder(),
encoding=encoding)
parser.feed(s)
self.tree = parser.close()
if self.operation.output:
self.build_element_map(self.operation.output, 'root')
self.start(self.tree)
def get_response_metadata(self):
rmd = {}
self.value['ResponseMetadata'] = rmd
rmd_elem = self.tree.find(self.clark_notation('ResponseMetadata'))
if rmd_elem is not None:
rmd_elem.tail = True
request_id = rmd_elem.find(self.clark_notation('RequestId'))
else:
request_id = self.tree.find(self.clark_notation('requestId'))
if request_id is None:
request_id = self.tree.find(self.clark_notation('RequestId'))
if request_id is None:
request_id = self.tree.find('RequestID')
if request_id is not None:
request_id.tail = True
rmd['RequestId'] = request_id.text.strip()
def _get_error_data(self, error_elem):
data = {}
for elem in error_elem:
elem.tail = True
data[self.get_element_base_tag(elem)] = elem.text
return data
def get_response_errors(self):
errors = None
error_elems = self.tree.find('Errors')
if error_elems is not None:
error_elems.tail = True
errors = [self._get_error_data(e) for e in error_elems]
else:
error_elems = self.tree.find(self.clark_notation('Error'))
if error_elems is not None:
error_elems.tail = True
errors = [self._get_error_data(error_elems)]
elif self.tree.tag == 'Error':
errors = [self._get_error_data(self.tree)]
if errors:
self.value['Errors'] = errors
def build_element_map(self, defn, keyname):
xmlname = defn.get('xmlname', keyname)
if not xmlname:
xmlname = defn.get('shape_name')
self.element_map[xmlname] = defn
if defn['type'] == 'structure':
for member_name in defn['members']:
self.build_element_map(defn['members'][member_name],
member_name)
elif defn['type'] == 'list':
self.build_element_map(defn['members'], None)
elif defn['type'] == 'map':
self.build_element_map(defn['keys'], 'key')
self.build_element_map(defn['members'], 'value')
def find(self, parent, tag):
tag = tag.split(':')[-1]
cn = self.clark_notation(tag)
child = parent.find(cn)
if child is None:
child = parent.find('*/%s' % cn)
return child
def findall(self, parent, tag):
cn = self.clark_notation(tag)
children = parent.findall(cn)
if not children:
try:
children = parent.findall('*/%s' % cn)
except:
pass
return children
def parent_slow(self, elem, target):
for child in elem:
if child == target:
self._parent = elem
break
self.parent_slow(child, target)
def parent(self, elem):
# We need the '..' operator in XPath but only that is only
# available in Python versions >= 2.7
if sys.version_info[0] == 2 and sys.version_info[1] == 6:
self.parent_slow(self.tree, elem)
parent = self._parent
self._parent = None
else:
parent = self.tree.find('.//%s/..' % elem.tag)
return parent
def get_elem_text(self, elem):
data = elem.text
if data is not None:
data = elem.text.strip()
return data
def _handle_string(self, elem, shape):
data = self.get_elem_text(elem)
if not data:
children = list(elem)
if len(children) == 1:
data = self.get_elem_text(children[0])
return data
_handle_timestamp = _handle_string
_handle_blob = _handle_string
def _handle_integer(self, elem, shape):
data = self.get_elem_text(elem)
if data:
data = int(data)
return data
_handle_long = _handle_integer
def _handle_float(self, elem, shape):
data = self.get_elem_text(elem)
if data:
data = float(data)
return data
_handle_double = _handle_float
def _handle_boolean(self, elem, shape):
return True if elem.text.lower() == 'true' else False
def _handle_structure(self, elem, shape):
new_data = {}
xmlname = shape.get('xmlname')
if xmlname:
tagname = self.get_element_base_tag(elem)
if xmlname != tagname:
return new_data
for member_name in shape['members']:
member_shape = shape['members'][member_name]
xmlname = member_shape.get('xmlname', member_name)
child = self.find(elem, xmlname)
if child is not None:
new_data[member_name] = self.handle_elem(
member_name, child, member_shape)
return new_data
def _handle_list(self, elem, shape):
xmlname = shape['members'].get('xmlname', 'member')
children = self.findall(elem, xmlname)
if not children and shape.get('flattened'):
parent = self.parent(elem)
if parent is not None:
tagname = self.get_element_base_tag(elem)
children = self.findall(parent, tagname)
if not children:
children = []
return [self.handle_elem(None, child, shape['members'])
for child in children]
def _handle_map(self, elem, shape):
data = {}
# First collect all map entries
xmlname = shape.get('xmlname', 'entry')
keyshape = shape['keys']
valueshape = shape['members']
key_xmlname = keyshape.get('xmlname', 'key')
value_xmlname = valueshape.get('xmlname', 'value')
members = self.findall(elem, xmlname)
if not members:
parent = self.parent(elem)
if parent is not None:
members = self.findall(parent, xmlname)
for member in members:
key = self.find(member, key_xmlname)
value = self.find(member, value_xmlname)
cn = self.clark_notation(value_xmlname)
value = member.find(cn)
key_name = self.handle_elem(None, key, keyshape)
data[key_name] = self.handle_elem(key_name, value, valueshape)
return data
def emit_event(self, tag, shape, value):
if 'shape_name' in shape:
event = self.session.create_event(
'after-parsed', self.operation.service.endpoint_prefix,
self.operation.name, shape['shape_name'], tag)
rv = first_non_none_response(self.session.emit(event,
shape=shape,
value=value),
None)
if rv:
value = rv
return value
def handle_elem(self, key, elem, shape):
handler_name = '_handle_%s' % shape['type']
elem.tail = True
if hasattr(self, handler_name):
value = getattr(self, handler_name)(elem, shape)
value = self.emit_event(key, shape, value)
return value
else:
logger.debug('Unhandled type: %s', shape['type'])
def fake_shape(self, elem):
shape = {}
tags = set()
nchildren = 0
for child in elem:
tags.add(child)
nchildren += 1
if nchildren == 0:
shape['type'] = 'string'
elif nchildren > 1 and len(tags) == 1:
shape['type'] = 'list'
shape['members'] = {'type': 'string'}
else:
shape['type'] = 'structure'
shape['members'] = {}
for tag in tags:
base_tag = self.get_element_base_tag(tag)
shape['members'][base_tag] = {'type': 'string'}
return shape
def start(self, elem):
self.value = {}
if self.operation.output:
for member_name in self.operation.output['members']:
member = self.operation.output['members'][member_name]
xmlname = member.get('xmlname', member_name)
child = self.find(elem, xmlname)
if child is None and member['type'] not in ScalarTypes:
child = elem
if child is not None:
self.value[member_name] = self.handle_elem(member_name,
child, member)
self.get_response_metadata()
self.get_response_errors()
for child in self.tree:
if child.tail is not True:
child_tag = self.get_element_base_tag(child)
if child_tag not in self.element_map:
if not child_tag.startswith(self.operation.name):
shape = self.fake_shape(child)
self.value[child_tag] = self.handle_elem(child_tag,
child, shape)
def merge_header_values(self, headers):
if self.operation.output:
for member_name in self.operation.output['members']:
member = self.operation.output['members'][member_name]
location = member.get('location')
if location == 'header':
location_name = member.get('location_name')
if location_name in headers:
self.value[member_name] = headers[location_name]
class JSONResponse(Response):
def parse(self, s, encoding):
try:
decoded = s.decode(encoding)
self.value = json.loads(decoded)
self.get_response_errors()
except Exception as err:
logger.debug('Error loading JSON response body, %r', err)
def get_response_errors(self):
# Most JSON services return a __type in error response bodies.
# Unfortunately, ElasticTranscoder does not. It simply returns
# a JSON body with a single key, "message".
error = None
if '__type' in self.value:
error_type = self.value['__type']
error = {'Type': error_type}
del self.value['__type']
if 'message' in self.value:
error['Message'] = self.value['message']
del self.value['message']
code = self._parse_code_from_type(error_type)
error['Code'] = code
elif 'message' in self.value and len(self.value.keys()) == 1:
error = {'Type': 'Unspecified', 'Code': 'Unspecified',
'Message': self.value['message']}
del self.value['message']
if error:
self.value['Errors'] = [error]
def _parse_code_from_type(self, error_type):
return error_type.rsplit('#', 1)[-1]
class StreamingResponse(Response):
def __init__(self, session, operation):
Response.__init__(self, session, operation)
self.value = {}
def parse(self, headers, stream):
for member_name in self.operation.output['members']:
member_dict = self.operation.output['members'][member_name]
if member_dict.get('location') == 'header':
header_name = member_dict.get('location_name')
if header_name and header_name in headers:
self.value[member_name] = headers[header_name]
elif member_dict.get('type') == 'blob':
if member_dict.get('payload'):
if member_dict.get('streaming'):
self.value[member_name] = stream
def get_response(session, operation, http_response):
encoding = 'utf-8'
if http_response.encoding:
encoding = http_response.encoding
content_type = http_response.headers.get('content-type')
if content_type and ';' in content_type:
content_type = content_type.split(';')[0]
logger.debug('Content type from response: %s', content_type)
if operation.is_streaming():
streaming_response = StreamingResponse(session, operation)
streaming_response.parse(http_response.headers, http_response.raw)
return (http_response, streaming_response.get_value())
body = http_response.content
logger.debug("Response Body:\n%s", body)
if operation.service.type == 'json':
json_response = JSONResponse(session, operation)
if body:
json_response.parse(body, encoding)
json_response.merge_header_values(http_response.headers)
return (http_response, json_response.get_value())
# We are defaulting to an XML response handler because many query
# services send XML error responses but do not include a Content-Type
# header.
xml_response = XmlResponse(session, operation)
if body:
xml_response.parse(body, encoding)
xml_response.merge_header_values(http_response.headers)
return (http_response, xml_response.get_value())
|