Server Timeout makes ther listener to crash

[XaviArnaus]

The mastodon streaming listener may enter into a Server's TimeOut. The wrapper then fails with an Exception and this escalates up until the app. At this point the MastoFeed listener restarts.

More than a big error, it is a normal behavior due to the server timeout. The logging should become less severe.
In this step the idea is to handle the exception and log it as a smaller error, still sending the Janitor notification (to ensure we identify the exception correctly). In a further step it should just avoid using Janitor.

currently, after notifying and logging, it restarts listening. this should continue.

Traceback:

[2024-03-04 13:40:53,107] INFO     masto-feed   MastoFeed listener
[2024-03-04 13:40:53,109] DEBUG    masto-feed   Starting new Mastodon API instance
[2024-03-04 13:40:53,110] DEBUG    masto-feed   Reusing stored User Credentials
[2024-03-04 13:40:53,131] DEBUG    urllib3.connectionpool Starting new HTTPS connection (1): social.arnaus.net:443
[2024-03-04 13:40:53,312] DEBUG    urllib3.connectionpool https://social.arnaus.net:443 "GET /api/v1/instance/ HTTP/1.1" 200 5319
[2024-03-04 13:40:53,357] DEBUG    urllib3.connectionpool https://social.arnaus.net:443 "GET /api/v1/instance/ HTTP/1.1" 200 5319
[2024-03-04 13:40:53,422] DEBUG    urllib3.connectionpool https://social.arnaus.net:443 "GET /api/v1/streaming/user HTTP/1.1" 200 None
[2024-03-05 03:38:08,930] DEBUG    urllib3.connectionpool Starting new HTTP connection (1): dantooine:5000
[2024-03-05 03:38:09,571] DEBUG    urllib3.connectionpool http://dantooine:5000 "POST /message HTTP/1.1" 200 4
[2024-03-05 03:38:09,575] ERROR    masto-feed   exceptions must derive from BaseException
Traceback (most recent call last):
  File "/home/xavier/.cache/pypoetry/virtualenvs/mastofeed-XHz1mY8R-py3.9/lib/python3.9/site-packages/urllib3/response.py", line 737, in _error_catcher
    yield
  File "/home/xavier/.cache/pypoetry/virtualenvs/mastofeed-XHz1mY8R-py3.9/lib/python3.9/site-packages/urllib3/response.py", line 1184, in read_chunked
    self._update_chunk_length()
  File "/home/xavier/.cache/pypoetry/virtualenvs/mastofeed-XHz1mY8R-py3.9/lib/python3.9/site-packages/urllib3/response.py", line 1108, in _update_chunk_length
    line = self._fp.fp.readline()  # type: ignore[union-attr]
  File "/usr/lib/python3.9/socket.py", line 704, in readinto
    return self._sock.recv_into(b)
  File "/usr/lib/python3.9/ssl.py", line 1241, in recv_into
    return self.read(nbytes, buffer)
  File "/usr/lib/python3.9/ssl.py", line 1099, in read
    return self._sslobj.read(len, buffer)
socket.timeout: The read operation timed out

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/home/xavier/.cache/pypoetry/virtualenvs/mastofeed-XHz1mY8R-py3.9/lib/python3.9/site-packages/requests/models.py", line 816, in generate
    yield from self.raw.stream(chunk_size, decode_content=True)
  File "/home/xavier/.cache/pypoetry/virtualenvs/mastofeed-XHz1mY8R-py3.9/lib/python3.9/site-packages/urllib3/response.py", line 1040, in stream
    yield from self.read_chunked(amt, decode_content=decode_content)
  File "/home/xavier/.cache/pypoetry/virtualenvs/mastofeed-XHz1mY8R-py3.9/lib/python3.9/site-packages/urllib3/response.py", line 1213, in read_chunked
    self._original_response.close()
  File "/usr/lib/python3.9/contextlib.py", line 135, in __exit__
    self.gen.throw(type, value, traceback)
  File "/home/xavier/.cache/pypoetry/virtualenvs/mastofeed-XHz1mY8R-py3.9/lib/python3.9/site-packages/urllib3/response.py", line 742, in _error_catcher
    raise ReadTimeoutError(self._pool, None, "Read timed out.") from e  # type: ignore[arg-type]
urllib3.exceptions.ReadTimeoutError: HTTPSConnectionPool(host='social.arnaus.net', port=443): Read timed out.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/xavier/.cache/pypoetry/virtualenvs/mastofeed-XHz1mY8R-py3.9/lib/python3.9/site-packages/mastodon/streaming.py", line 109, in handle_stream
    for chunk in response.iter_content(chunk_size=1):
  File "/home/xavier/.cache/pypoetry/virtualenvs/mastofeed-XHz1mY8R-py3.9/lib/python3.9/site-packages/requests/models.py", line 822, in generate
    raise ConnectionError(e)
requests.exceptions.ConnectionError: HTTPSConnectionPool(host='social.arnaus.net', port=443): Read timed out.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/xavier/bots/social-arnaus-feeder/mastofeed/runners/listener.py", line 33, in run
    mastodon_instance.stream_user(mention_listener)
  File "/home/xavier/.cache/pypoetry/virtualenvs/mastofeed-XHz1mY8R-py3.9/lib/python3.9/site-packages/decorator.py", line 232, in fun
    return caller(func, *(extras + args), **kw)
  File "/home/xavier/.cache/pypoetry/virtualenvs/mastofeed-XHz1mY8R-py3.9/lib/python3.9/site-packages/mastodon/utility.py", line 49, in wrapper
    return function(self, *args, **kwargs)
  File "/home/xavier/.cache/pypoetry/virtualenvs/mastofeed-XHz1mY8R-py3.9/lib/python3.9/site-packages/mastodon/streaming_endpoints.py", line 21, in stream_user
    return self.__stream('/api/v1/streaming/user', listener, run_async=run_async, timeout=timeout, reconnect_async=reconnect_async, reconnect_async_wait_sec=reconnect_async_wait_sec)
  File "/home/xavier/.cache/pypoetry/virtualenvs/mastofeed-XHz1mY8R-py3.9/lib/python3.9/site-packages/mastodon/internals.py", line 540, in __stream
    listener.handle_stream(r)
  File "/home/xavier/.cache/pypoetry/virtualenvs/mastofeed-XHz1mY8R-py3.9/lib/python3.9/site-packages/mastodon/streaming.py", line 151, in handle_stream
    six.raise_from(
  File "<string>", line 3, in raise_from
TypeError: exceptions must derive from BaseException
[2024-03-05 03:38:09,581] INFO     masto-feed   MastoFeed listener
[2024-03-05 03:38:09,582] DEBUG    masto-feed   Starting new Mastodon API instance
[2024-03-05 03:38:09,583] DEBUG    masto-feed   Reusing stored User Credentials
[2024-03-05 03:38:09,595] DEBUG    urllib3.connectionpool Starting new HTTPS connection (1): social.arnaus.net:443
[2024-03-05 03:38:09,776] DEBUG    urllib3.connectionpool https://social.arnaus.net:443 "GET /api/v1/instance/ HTTP/1.1" 200 5319
[2024-03-05 03:38:09,828] DEBUG    urllib3.connectionpool https://social.arnaus.net:443 "GET /api/v1/instance/ HTTP/1.1" 200 5319
[2024-03-05 03:38:09,901] DEBUG    urllib3.connectionpool https://social.arnaus.net:443 "GET /api/v1/streaming/user HTTP/1.1" 200 None

[XaviArnaus]

It's difficult to catch the Exception, as it fails to inherit from BaseException from within Mastodon.py, as explained here:

halcy/Mastodon.py#368