In particular, the docs now talk about the CSRF protection. This is
increasing relevant as we start having more mutation endpoints. And
make the signals api expect a csrf for session auth to match the newer
users api.
This is useful for e.g. deciding whether or not to present the user
admin UI in navigation.
As part of this change, I adjusted the casing in Permissions, and then
all the toml stuff for consistency. Noted in changelog.
I mistakenly left this out. Also, fix the behavior if something is
forgotten. Before, it'd silently ignore it. Now, it correctly returns
Unimplemented, in both POST /api/users/:id and PUT /api/users.
Now you can set a password for a user while the server is running,
e.g. via the following command:
```shell
curl \
-H 'Content-Type: application/json' \
-d '{"update": {"password": "asdf"}}' \
--unix-socket /var/lib/moonfire-nvr/sock \
http://nvr/api/users/1
```
This fixes a real cross-site WebSocket hijacking (CSWSH) vulnerability.
If the attacker knows the URL of an NVR installation this user is
authenticated to and the UUID of a camera, and can trick the user into
visiting their webpage, they can grab the live stream. At least there's
some entropy in the camera UUID, but it was never intended to be a
secret.
