security/acme-client: Fix wrong permissions in 'Update to local Unifi keystore' automation

[mdbraber]

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Describe the bug
When deploy an certificate obtained via acme-client, the permissions on the key store are wrong. Also see here: https://forum.opnsense.org/index.php?topic=43556.msg216736#msg216736

To Reproduce
(using the Unifi plugin from the mimugmail repo)

1. Obtain a certificate
2. Use the "Deploy to Unifi" command after obtaining the certificate
3. Try to access Unifi

Expected behavior
Expected to have a clean reload

Suggested fix

What could help is to change this line here:

plugins/security/acme-client/src/opnsense/mvc/app/library/OPNsense/AcmeClient/LeAutomation/AcmeUnifi.php

Line 42 in 80c2623

$this->acme_env['DEPLOY_UNIFI_RELOAD'] = 'service unifi restart';

to

$this->acme_env['DEPLOY_UNIFI_RELOAD'] = 'service unifi restart';

change into

$this->acme_env['DEPLOY_UNIFI_RELOAD'] = 'chown unifi:wheel ' + (string)$this->config->acme_unifi_keystore + '; service unifi restart'

I've considered having a separate chown command, but order would not be expected to be the same and that solution seems brittle. Post-hooks in acme.sh are run before deploy hooks in acme.sh so that won't work either. Also changing the deploy hook in acme.sh is very specific to OPNsense and will possibly not be accepted in the distribution (which would be fair). So I think the above would be the best place to fix this.

[adn77]

Thank you for getting to the bottom of it. I noticed some weirdness with the certificate deployment as well in recent versions but didn't think much of it.

Either acme.sh or Unifi changed the user they are running under.

I proposed an addition to the upstream project. If that finds support, I am going to fix it there.
Maybe we'll get around changing anything here then.

[adn77]

I created an acme.sh PR here
acmesh-official/acme.sh#6168

You can simply apply the changes in /usr/local/share/examples/acme.sh/deploy/unifi.sh until it gets merged.

[adn77]

The PR has been merged to the acme.sh Dev branch. Should be in the next release of acme.sh 😄