Crash when application with arguments config + exam key not recognize in moodle about seb-win-refactoring HOT 7 CLOSED

I'll do that, thanks for the investigation

from seb-win-refactoring.

Thanks for your report, we'll have a look at it once time permits.

from seb-win-refactoring.

The issue (regarding the crash) here is that SEB fails to terminate a running service session:

2024-03-08 12:22:06.726 [15] - INFO: Stopping current service session...
2024-03-08 12:22:06.727 [15] - DEBUG: [ServiceProxy] Sending message 'SessionStopMessage'...
2024-03-08 12:22:06.728 [15] - DEBUG: [ServiceProxy] Received response 'SimpleResponse -> Acknowledged' for message 'SessionStopMessage'.
2024-03-08 12:22:06.729 [15] - DEBUG: [ServiceProxy] Service acknowledged session stop.
2024-03-08 12:22:12.202 [07] - ERROR: Failed to stop service session within 30 seconds!

This due to the fact that the SEB service cannot restart the Windows Update service:

2024-03-08 12:21:42.652 [05] - DEBUG: [WindowsUpdateConfiguration] Attempt 1/5 to set service 'wuauserv' => 'running'...
2024-03-08 12:21:42.652 [05] - WARNING: [WindowsUpdateConfiguration] Could not set service 'wuauserv' => 'running'! Current status: StopPending.
2024-03-08 12:21:42.653 [05] - DEBUG: [WindowsUpdateConfiguration] Attempt 2/5 to set service 'wuauserv' => 'running'...
2024-03-08 12:21:42.654 [05] - WARNING: [WindowsUpdateConfiguration] Could not set service 'wuauserv' => 'running'! Current status: StopPending.
2024-03-08 12:21:42.654 [05] - DEBUG: [WindowsUpdateConfiguration] Attempt 3/5 to set service 'wuauserv' => 'running'...
2024-03-08 12:21:42.655 [05] - WARNING: [WindowsUpdateConfiguration] Could not set service 'wuauserv' => 'running'! Current status: StopPending.
2024-03-08 12:21:42.655 [05] - DEBUG: [WindowsUpdateConfiguration] Attempt 4/5 to set service 'wuauserv' => 'running'...
2024-03-08 12:21:42.656 [05] - WARNING: [WindowsUpdateConfiguration] Could not set service 'wuauserv' => 'running'! Current status: StopPending.
2024-03-08 12:21:42.656 [05] - DEBUG: [WindowsUpdateConfiguration] Attempt 5/5 to set service 'wuauserv' => 'running'...
2024-03-08 12:21:42.657 [05] - WARNING: [WindowsUpdateConfiguration] Could not set service 'wuauserv' => 'running'! Current status: StopPending.
2024-03-08 12:21:42.658 [05] - ERROR: [WindowsUpdateConfiguration] All attempts to set service 'wuauserv' => 'running' have failed!
2024-03-08 12:21:42.658 [05] - WARNING: [WindowsUpdateConfiguration] Failed to restore feature!
2024-03-08 12:21:42.659 [05] - ERROR: Failed to restore WindowsUpdateConfiguration (e35b758b-1552-43ae-adea-5d2fe61e6e12)!

You may be able to work around this issue by allowing Windows Update to run while SEB is running (and controlling Windows Update e.g. via group policies), see https://safeexambrowser.org/windows/win_usermanual_en.html#SecurityPane.

from seb-win-refactoring.

With respect to the key recognition: If it in fact is the case that the key is recognized by Moodle without the argument, but not with the argument, then it might be that there is an issue on Moodle side with the key calculation.

I see that your particular argument contains double-quotes " which might be escaped on Moodle side? That should however not be the case, as is specified on our website under Summary Config Key Generation:

Don't add character escaping (also back shlashes "\" as found in URL filter rules should not be escaped).

@danschlet To be sure and to verify the calculation in the Windows version, could you please send me (via mail or chat) the configuration key the macOS version calculates for the above linked configuration?

from seb-win-refactoring.

Thanks for the quick reply, so I wasn't aware about those constraints. Knowing that I've changed how the arguments should be run (new env_var):

It works now but it's a bit complicated to generalize that to other use case/apps if needed.

from seb-win-refactoring.

Okay, then there is definitely an issue with the key calculation, thanks for investigating further. The question now is whether it is in SEB (Windows) or in Moodle? If the keys from the Windows and macOS versions happen to be the same, then it's definitely on Moodle side. I'll report back once we've compared the two internally.

from seb-win-refactoring.

The keys of the macOS and Windows version of SEB coincide; this then most likely is an issue in the key calculation algorithm on Moodle side. Thus, I think it'd be best if you open an issue with the Moodle developers and mention that the issue only arises when using double quotes as application arguments (I reckon they might escape them, which as above stated should not be done for the key calculation).

from seb-win-refactoring.