Created
September 11, 2018 13:34
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| from scrapy.core.downloader.handlers.http import HTTPDownloadHandler | |
| from scrapy.core.downloader.handlers.http11 import ScrapyAgent, reactor | |
| # This overrides the default Scrapy agent, which discards partial responses when we | |
| # hit the timeout, and forces it to instead return what we got back. | |
| class TimeoutProcessingAgent(ScrapyAgent): | |
| def download_request(self, request): | |
| d = super().download_request(request) | |
| timeout = request.meta.get('download_timeout') or self._connectTimeout | |
| # Replace the default timeout callback, which will just cancel our request, | |
| # with one that will drop the connection and allow us to process partial data | |
| self._timeout_cl.cancel() | |
| self._timeout_cl = reactor.callLater(timeout, self._cb_timedout) | |
| return d | |
| def _cb_timedout(self): | |
| self._txresponse._transport.stopProducing() | |
| self._txresponse._transport._producer.loseConnection() | |
| def _cb_timeout(self, result, request, url, timeout): | |
| # needed for HTTPS requests, otherwise _ResponseReader doesn't | |
| # receive connectionLost() | |
| if self._txresponse: | |
| if self._txresponse._transport: | |
| self._txresponse._transport.stopProducing() | |
| return result | |
| class TimeoutProcessingDownloadHandler(HTTPDownloadHandler): | |
| def download_request(self, request, spider): | |
| agent = TimeoutProcessingAgent(contextFactory=self._contextFactory, pool=self._pool, | |
| maxsize=getattr(spider, 'download_maxsize', self._default_maxsize), | |
| warnsize=getattr(spider, 'download_warnsize', self._default_warnsize), | |
| fail_on_dataloss=self._fail_on_dataloss) | |
| return agent.download_request(request) |
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It works for me. Thanks.