[Bug 1058072] Re: Cancelling PolicyKit authorization produces silly error message

[Edward Donovan]

Thanks, Matthew, and no problem.  :)

For distinguishing the cases...I don't know of a way to do that.  For
any failed authentication, dbus returns the exception
'PermissionDeniedByPolicy', and with the patch, software-properties
catches that.  Maybe somewhere in dbus, a finer distinction could be
found, but that's just speculation.  What I know about this, I just
learned at the time of going after this bug.

I'll look next at the cleanest way to change the code, when it catches
that exception, to do a no-op, and not pop any dialog.

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https://bugs.launchpad.net/bugs/1058072

Title:
  Cancelling PolicyKit authorization produces silly error message

Status in “software-properties” package in Ubuntu:
  Triaged

Bug description:
  software-properties-gtk 0.92.6, Ubuntu Q

  1. Open Software Sources.
  2. Change anything, e.g. check/uncheck any of the checkboxes in the "Ubuntu Software" tab.
  3. In the authorization prompt, choose "Cancel".

  What happens: An error alert appears, "Authorization failed." -
  "Software sources can't be changed without permission."

  What should happen: No error alert appears. You already know that you
  cancelled the authorization.

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