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Uncaught socket exception during timeout handling #310

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Uncaught socket exception during timeout handling #310

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10 changes: 8 additions & 2 deletions cheroot/ssl/pyopenssl.py
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Original file line number Diff line number Diff line change
Expand Up @@ -99,8 +99,14 @@ def _safe_call(self, is_reader, call, *args, **kwargs): # noqa: C901
except SSL.WantWriteError:
time.sleep(self.ssl_retry)
except SSL.SysCallError as e:
if is_reader and e.args == (-1, 'Unexpected EOF'):
return b''
if e.args == (-1, 'Unexpected EOF'):
if is_reader:
return b''
else:
# See #210. Prevents DOS attack caused by
# silent connections lasting beyond connection
# timeout length.
raise errors.FatalSSLAlert(*e.args)

errnum = e.args[0]
if is_reader and errnum in errors.socket_errors_to_ignore:
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