def escape_xml_payload(params, **kwargs):
# Replace \r and \n with the escaped sequence over the whole XML document
# to avoid linebreak normalization modifying customer input when the
# document is parsed. Ideally, we would do this in ElementTree.tostring,
# but it doesn't allow us to override entity escaping for text fields. For
# this operation \r and \n can only appear in the XML document if they were
# passed as part of the customer input.
body = params['body']
replaced = False
if b'\r' in body:
replaced = True
body = body.replace(b'\r', b'
')
if b'\n' in body:
replaced = True
body = body.replace(b'\n', b'
')
if not replaced:
return
params['body'] = body
if 'Content-MD5' in params['headers']:
# The Content-MD5 is now wrong, so we'll need to recalculate it
del params['headers']['Content-MD5']
conditionally_calculate_md5(params, **kwargs)
def _prepare_additional_traits(self, request, operation_model):
"""Determine if additional traits are required for given model"""
if operation_model.http_checksum_required:
conditionally_calculate_md5(request)
return request
def _prepare_additional_traits_in_response(
self, response: HttpResponse, operation_model: OperationModel):
"""Applies additional traits on the raw response for a given model or protocol."""
if operation_model.http_checksum_required:
conditionally_calculate_md5(response)
return response