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import warnings
from scrapy.exceptions import ScrapyDeprecationWarning
from scrapy.utils.http import decode_chunked_transfer
warnings.warn("Module `scrapy.downloadermiddlewares.chunked` is deprecated, "
"chunked transfers are supported by default.",
ScrapyDeprecationWarning, stacklevel=2)
class ChunkedTransferMiddleware(object):
"""This middleware adds support for chunked transfer encoding, as
documented in: https://en.wikipedia.org/wiki/Chunked_transfer_encoding
"""
def process_response(self, request, response, spider):
if response.headers.get('Transfer-Encoding') == 'chunked':
body = decode_chunked_transfer(response.body)
return response.replace(body=body)
return response
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