[New-bugs-announce] [issue40227] SSLError is not passed to the client during handshake

[Ivan Ivanyuk]

New submission from Ivan Ivanyuk <ivan.ivanyuk at gmail.com>:

Due to the combination of the logic here: https://github.com/python/cpython/blob/master/Lib/asyncio/sslproto.py#L483 and changes introduced in the issue https://bugs.python.org/issue37035, the assumption that "Not-logged exceptions are not skipped but reported to the user by protocol.connection_lost(exc) callback." as stated in the issue is not valid.
 If SSLError happens during the handshake, no exception get's propagated even if it's possible to log stacktrace using loop.set_debug(True).

 As opposed to the usage pattern mentioned in the initial issue comment, we are very much interested in the errors there, so, for now, I just monkey patch SSLprotocol.connection_lost() in runtime to be like this https://github.com/anthrax-0/cpython/pull/1/commits/d652ed8d0e72bb839fe4841530cc48928b3c3bb0 .

What should be the best solution for this?

----------
components: asyncio
messages: 365988
nosy: asvetlov, iivanyuk, yselivanov
priority: normal
severity: normal
status: open
title: SSLError is not passed to the client during handshake
type: behavior
versions: Python 3.7, Python 3.8

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue40227>
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