def _parse_xml_string_to_dom(self, xml_string):
try:
parser = ETree.XMLParser(target=ETree.TreeBuilder(),
encoding=self.DEFAULT_ENCODING)
parser.feed(xml_string)
root = parser.close()
except XMLParseError as e:
raise ResponseParserError(
"Unable to parse response (%s), "
"invalid XML received. Further retries may succeed:\n%s" %
(e, xml_string))
return root
def parse_get_bucket_location(parsed, http_response, **kwargs):
# s3.GetBucketLocation cannot be modeled properly. To
# account for this we just manually parse the XML document.
# The "parsed" passed in only has the ResponseMetadata
# filled out. This handler will fill in the LocationConstraint
# value.
if http_response.raw is None:
return
response_body = http_response.content
parser = ETree.XMLParser(target=ETree.TreeBuilder(), encoding='utf-8')
parser.feed(response_body)
root = parser.close()
region = root.text
parsed['LocationConstraint'] = region
def _looks_like_special_case_error(http_response):
if http_response.status_code == 200:
try:
parser = ETree.XMLParser(target=ETree.TreeBuilder(),
encoding='utf-8')
parser.feed(http_response.content)
root = parser.close()
except XMLParseError:
# In cases of network disruptions, we may end up with a partial
# streamed response from S3. We need to treat these cases as
# 500 Service Errors and try again.
return True
if root.tag == 'Error':
return True
return False
def _initial_body_parse(self, xml_string):
if not xml_string:
return ETree.Element('')
return self._parse_xml_string_to_dom(xml_string)