D-Bus: How can root access a user's started session?

D-Bus is really useful for automating a lot of tasks, and I want it to respond to certain ACPI events using a acpid configuration.
However, acpid runs as root, and it seems like root cannot find or access a logged in user's D-Bus session.
Example:
# purple-remote 'setstatus?status=offline'
No existing libpurple instance detected.
(the command works fine from the logged in user's shell)
I've googled around a bit, and there was a hit about changing the euid of the shell, but changing this via zsh's EUID environment variable had no notable effect on the outcome.
Any ideas? I tried with sudo -u <username> but that doesn't help either.
Last edited by Natanji (2014-04-30 12:25:43)

D-Bus is really useful for automating a lot of tasks, and I want it to respond to certain ACPI events using a acpid configuration.
However, acpid runs as root, and it seems like root cannot find or access a logged in user's D-Bus session.
Example:
# purple-remote 'setstatus?status=offline'
No existing libpurple instance detected.
(the command works fine from the logged in user's shell)
I've googled around a bit, and there was a hit about changing the euid of the shell, but changing this via zsh's EUID environment variable had no notable effect on the outcome.
Any ideas? I tried with sudo -u <username> but that doesn't help either.
Last edited by Natanji (2014-04-30 12:25:43)

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