[Bug 306955] New: Akonadi IMAP resource runs amok when using a server with a self-signed certificate

[Jan Binder]

https://bugs.kde.org/show_bug.cgi?id=306955

            Bug ID: 306955
          Severity: critical
           Version: 4.9
          Priority: NOR
                CC: kdepim-bugs at kde.org, vkrause at kde.org
          Assignee: ervin at kde.org
           Summary: Akonadi IMAP resource runs amok when using a server
                    with a self-signed certificate
    Classification: Unclassified
                OS: Linux
          Reporter: wheel at herr-der-mails.de
          Hardware: Archlinux Packages
            Status: UNCONFIRMED
         Component: IMAP resource
           Product: Akonadi

All the confirmation dialogs visible in the screenshot are frozen and do not
react to clicks or keystrokes.
Occasionally, a new confirmation window appears and is really sluggish during
any interaction.
Also, Akonadi does not remember that a certain certificate should be accepted
forever.

Reproducible: Always

Steps to Reproduce:
1. Set up IMAP server with self-signed certificate on localhost.
2. Use this server with Akonadi IMAP resource.
3. Set check interval to 1 min.
4. Start kmail2
Actual Results:  
Get flooded by "pop-under" certificate confirmation dialog which get stuck and
bring kwin to its knees.

Expected Results:  
When one certificate confirmation window is open, do not open another.
Remember the settings form the confirmation dialog and the following duration
dialog.

Kmail is also unusably slow while this happens.
Kwin takes about ten seconds to react to any event.
CPU load is ~25-50%

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