[Bug 142937] New: KMail crashes when attempting to create folder with slash in its name

[Andreas Veithen]

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http://bugs.kde.org/show_bug.cgi?id=142937         
           Summary: KMail crashes when attempting to create folder with
                    slash in its name
           Product: kmail
           Version: 1.9.5
          Platform: Debian testing
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: crash
          Priority: NOR
         Component: general
        AssignedTo: kdepim-bugs kde org
        ReportedBy: andreas.veithen skynet be


Version:           1.9.5 (using KDE KDE 3.5.5)
Installed from:    Debian testing/unstable Packages
OS:                Linux

KMail 1.9.5 crashes when attempting to create folder with slash in its name (e.g. "crash/me"). It first displays the following message:

Error while creating file crash/me: No such file or directory

And then:

Error opening [...]/.INBOX.directory/crash/me; this folder is missing.

After this, KMail crashes with signal 11.

A very similar problem has already been reported in bugs 120448 and 125044. However this still happens with a disconnected IMAP account on a Cyrus IMAP server. Looking at the resolution of bug 120448 and the code in newfolderdialog.cpp, I think this has to do with the fact that Cyrus uses "." as a folder delimiter: With my configuration, KMail disallows dots in folder names, but allows slashes. The error messages shown above suggest that KMail then crashes because the caching code for disconnected IMAP has problems with slashes in folder names. Either KMail should always disallow slashes for disconnected IMAP folders, or the caching code needs to be corrected to handle slashes in folder names.