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+--- Thread: Asyncio StreamReader read method doesn't respect timeout when using SSL (/thread-20024.html)
Asyncio StreamReader read method doesn't respect timeout when using SSL - dukadahake - Jul-24-2019
I'm making requests to SSL servers using asyncio's streams.
Here is an example method.
async def make_request():
async with asyncio.connect('127.0.0.1', 8888, ssl=ssl.SSLContext()) as stream:
await stream.write(REQUEST)
print(await stream.read(RESPONSE_LENGTH))Some of the server complete the SSl handshake, receive the request but don't send any response. This makes the method stuck on the stream.read call as expected.In such cases I want to define a timeout for the read call. I have tried to achieve this by adding a
wait_for.print(await asyncio.wait_for(stream.read(RESPONSE_LENGTH),timeout=2))However, this method doesn't work and continues to block indefinitely.
Additionally, if we use a plain TCP connection the fix I proposed works fine.
Whats wrong with my solution? Is there an alternative way to achieve it?