[kaddressbook] [Bug 320196] New: utf-8 information is invalid, vcf file in utf-8 is broken

[Gleb Kulikov]

https://bugs.kde.org/show_bug.cgi?id=320196

            Bug ID: 320196
           Summary: utf-8 information is invalid, vcf file in utf-8 is
                    broken
    Classification: Unclassified
           Product: kaddressbook
           Version: 4.10
          Platform: Other
                OS: Linux
            Status: UNCONFIRMED
          Severity: critical
          Priority: NOR
         Component: general
          Assignee: kdepim-bugs at kde.org
          Reporter: gleb.tsk at gmail.com
                CC: tokoe at kde.org

when exporting address book to vcf files, the follows problem is observed:

if there are non latin-1 symbols (my tongue is Russian, so all symbols are
defenitely not in latin-1) and length of line is more then 51, kaddressbook
tries to split line to the new line, but it ruines utf-8 rules when doing so.

for example, line 

NOTE:ранее: Омск\, Кафедра вычислительных с
истем

tranforms into (last word систем) D1 81 D0 0D 0A B8 D1 81 D1 82 D0 B5 D0 BC

when D1 81 0D 0A D0 B8 D1 81 D1 82 D0 B5 D0 BC is probably expected.

this happens in any VCARD's fields.

Exported file is not possible to use in any mobile device nor in any other
address book programs.

Also infomation in google (via plugin) is ruined by the same reason.


Reproducible: Always

Steps to Reproduce:
1. open kaddressbook
2. fill information using Cyrillic or any other non-latin based alphabet
3. be unhappy
Actual Results:  
exported vcf file is not correct utf-8 document (also Kate estimate it as
UTF-32 Chinese and can not work with it!),

any 3d party programs can to correctly import such files
google contact information is ruined

Expected Results:  
correct utf-8 encoding, without extra 0D 0A (D0) byte

error is present in 4.4.11 as minimum

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