First of all, let's get rid of `TOKEN_NOT_FOUND_HTTP_STATUS`. It was a hack we did at one point when it was possible to return either a 403 or a 401 if the creds were missing. We always return a 401 in these cases now (thankfully), so it's not needed. Let's also stop abusing `AuthError` for these cases. Honestly they have nothing that relates them to the other places that `AuthError` is used, other than the fact that they are loosely under the 'Auth' banner. It makes no sense for them to share exception classes. Instead, let's add a couple of new exception classes: `InvalidClientTokenError` and `MissingClientTokenError`, for the `M_UNKNOWN_TOKEN` and `M_MISSING_TOKEN` cases respectively - and an `InvalidClientCredentialsError` base class for the two of them.  | 
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| .. | ||
| __init__.py | ||
| auth.py | ||
| constants.py | ||
| errors.py | ||
| filtering.py | ||
| ratelimiting.py | ||
| room_versions.py | ||
| urls.py | ||