[stable10] Fix migration issue caused during upgrade to version 10

[sharidas]

This change will help users to fix the migration
issue caused during upgrade to version 10. If
user had opted user specific key in the older versions
then no drop down will appear in the version 10.
Same applies if user had opted for the masterkey
in older version, no drop down will appear in version
10.

Signed-off-by: Sujith H sharidasan@owncloud.com

Description

When user tries to upgrade from versions < 10, the userSpecificKey is not present in the appConfig. And as a result during migration to version 10.0.2, the user gets an option to select the encryption mode :

• User Specific Key
• Master Key
  This issue is addressed with this change.

Related Issue

#28985

Motivation and Context

The change made here solves, the issues caused during migration.

How Has This Been Tested?

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.

[PVince81]

@sharidas please do a quick retest when coming from 10.0.3 to this branch (just one case is enough)

[PVince81]

👍 if it works

[PVince81]

@sharidas please always add a link in the original PR to the backport

[sharidas]

Test result of migration from 10.0.3beta ( tarball ) to the current change:

• Migration of 10.0.3beta with masterkey enabled to the current master change. Works well. The encryption page doesn't show drop down and here is the screenshot:
  

• Migration from 10.0.3beta from userkey enabled to the current change. Works well. The encrytion page doesnt show the drop down and here is the screenshot :
  

[lock]

This thread has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.