During the migration the automated script to update the copyright
headers accidentally got rid of some of the existing copyright lines.
Reinstate them.
We can get away with just catching UnicodeError here.
⋮
+-- ValueError
| +-- UnicodeError
| +-- UnicodeDecodeError
| +-- UnicodeEncodeError
| +-- UnicodeTranslateError
⋮
https://docs.python.org/3/library/exceptions.html#exception-hierarchy
Signed-off-by: Dan Callahan <danc@element.io>
Functionally identical, but more obviously cryptographically secure.
...Explicit is better than implicit?
Avoids needing to know that SystemRandom() implies a CSPRNG, and
complies with the big scary red box on the documentation for random:
> Warning:
> The pseudo-random generators of this module should not be used for
> security purposes. For security or cryptographic uses, see the
> secrets module.
https://docs.python.org/3/library/random.html
Signed-off-by: Dan Callahan <danc@element.io>
Part of #9744
Removes all redundant `# -*- coding: utf-8 -*-` lines from files, as python 3 automatically reads source code as utf-8 now.
`Signed-off-by: Jonathan de Jong <jonathan@automatia.nl>`
`distutils` is pretty much deprecated these days, and replaced with
`setuptools`. It's also annoying because it's you can't `pip install` it, and
it's hard to figure out which debian package we should depend on to make sure
it's there.
Since we only use it for a tiny function anyway, let's just vendor said
function into our codebase.
The _get_joined_users_from_context cache stores a mapping from user_id
to avatar_url and display_name. Instead of storing those in a dict,
store them in a namedtuple as that uses much less memory.
We also try converting the string to ascii to further reduce the size.
