[Digikam-devel] [Bug 152877] New: thumbnails: URI does not follow Thumbnail Managing Standard

[Heiko Schröder]

------- You are receiving this mail because: -------
You are the assignee for the bug, or are watching the assignee.
         
http://bugs.kde.org/show_bug.cgi?id=152877         
           Summary: thumbnails: URI does not follow Thumbnail Managing
                    Standard
           Product: digikam
           Version: 0.9.2
          Platform: SuSE RPMs
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: general
        AssignedTo: digikam-devel kde org
        ReportedBy: heiko.schroeder t-online de


Version:           0.9.2 (using KDE KDE 3.5.4)
Installed from:    SuSE RPMs
OS:                Linux

Characters in file or directory names are converted to Latin-1 by digikam. The resulting names are then used to form the Thumb::URI tag for thumbnails.

According to the Thumbnail Managing Standard the URI should be formed using the octet sequence that is actually used by the filesystem (in my case UTF-8) so that it can be used to access the file.

According to RFC2396 (which is referenced by the TMS) an URI may only contain US-ASCII characters, octets that are not part of the US-ASCII set have to be escaped using the "%<hex>" syntax. digikam uses the unescaped Latin-1 octets instead.

As other programs (e.g. konqueror) follow the standard, two thumbnail files may be generated for the same file using different URIs.

Addtionally, the re-encoding may fail for characters that cannot be represented in this character set, leading to wrong or incomplete URIs.