Support opening remote databases

[t-h-e]

Follow up to #7222

Adding an option to import a remote database. Import the data to a new database, existing database or a temporary database (see option "Temporary Database" in section "Import Into")

Screenshots

Testing strategy

Similar to syncing with a remote database, specify a download command and if necessary input to download the remote database.

Also added a unit test.

Type of change

• ✅ New feature (change that adds functionality)

[t-h-e]

I'm not sure why this test fails in the CI on Ubuntu

11:46:32   FAIL!  : TestGui::testOpenRemoteDatabase() 'QApplication::activeWindow()->findChildren<QTableWidget*>().count() > 0' returned FALSE. ()
11:46:32      Loc: [/opt/buildagent/work/c401303cba1b4098/tests/gui/TestGui.cpp(512)]
11:46:32   FAIL!  : TestGui::testOpenRemoteDatabase() 'action->isEnabled()' returned FALSE. ()
11:46:32      Loc: [/opt/buildagent/work/c401303cba1b4098/tests/gui/TestGui.cpp(2307)]

Windows and Mac seem fine. Also tested locally in Windows and Manjaro and there, this test works as well...

[droidmonkey]

Could be a modal dialog open on Linux? Like a question or notice dialog.

[Hidigoudi]

It would be nice to add the WebDav protocol inside this new feature. Instead of using a NextCloud client sync for example, the database would be accessible only from the server with an authentication. It would add a great feature for companies that want manage employees databases in a central server.

[droidmonkey]

@Hidigoudi WebDav can be setup in all major OS's natively as a mounted drive. You can use a third-party WebDav utility with the Remote Sync feature if you like.

[Maasea]

@Hidigoudi You can use the curl command to download and upload 'kdbx' files on Webdav server.

1. You may create a download action:

Name: Download
Command: curl -u username:password -o {TEMP_DATABASE} https://you_webdav.com/path/xxxxx.kdbx

Input: exit

2. You also need an upload action:

Name: Upload
Command: curl -u username:password -T {TEMP_DATABASE} https://you_webdav.com/path/xxxxx.kdbx

Input: exit

As far as I know, Windows 10/11 has a built-in curl command.

Don't forget to change the username, password and the webdav server.

[t-h-e]

@Maasea you can leave Input: blank as curl will exit on its own.

[tburny]

In am eagerly waiting for this for months now. Is there anything where we can help?

[droidmonkey]

This is great, fixed a regression with importing into an existing database. Couple things that could be done in future improvements to the code base:

1. We should be able to unlock the temporary database file using a proper DatabaseUnlockDialog... but the code right now makes a lot of assumptions that prohibit that. This would enable use of hardware keys.
2. We should write the download sync configuration to the database custom data. Then the user can re-download the database without having to type in the same configuration.

You may be able to implement the second suggestion, but not sure if that would be merged properly in DatabaseTabWidget

[t-h-e]

Failing tests seem unrelated to my changes