Change the path to the public directory reported by Discourse
to its real path instead of the symlink in the store, since
the store path won't be matched by any nginx rules.
Fixes#142528.
Discourse normally overrides the default notification email setting,
which makes the `notificationEmailAddress` setting ineffective. Add a
patch to remove this override.
Fixes#140114.
When restoring a backup, discourse decompresses the backup archive in
the /share/discourse/tmp dir. Before this change, it is linked to /run
which is typically backed by memory, so the backup will fail to
restore if you do not have enough memory on your system to contain the
backup. This has already happened to me on two small forums.
This moves tmp to the StateDirectory /var/lib/discourse/tmp which is
typically backed by disk.
ChangeLog: https://github.com/hedgedoc/hedgedoc/releases/tag/1.9.0
As documented in the Nix expression, I unfortunately had to patch
`yarn.lock` manually (the `yarn.nix` result isn't affected by this). By
adding a `git+https`-prefix to
`midi "https://github.com/paulrosen/MIDI.js.git#abcjs"` in the lock-file
I ensured that `yarn` actually uses the `MIDI.js` from the offline-cache
from `yarn2nix` rather than trying to download a tarball from GitHub.
Also, this release contains a fix for CVE-2021-39175 which doesn't seem
to be backported to 1.8. To quote NVD[1]:
> In versions prior to 1.9.0, an unauthenticated attacker can inject
> arbitrary JavaScript into the speaker-notes of the slide-mode feature
> by embedding an iframe hosting the malicious code into the slides or by
> embedding the HedgeDoc instance into another page.
Even though it "only" has a medium rating by NVD (6.1), this seems
rather problematic to me (also, GitHub rates this as "High"), so it's
actually a candidate for a backport.
[1] https://nvd.nist.gov/vuln/detail/CVE-2021-39175
