X2Go Bug report logs - #611
X2Go Client for Windows cannot create C:\Users\<username>\ssh\known_hosts file when the username has characters from languages other than the system locale

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Package: x2goclient; Maintainer for x2goclient is X2Go Developers <x2go-dev@lists.x2go.org>; Source for x2goclient is src:x2goclient.

Reported by: <trakatelis@uom.gr>

Date: Mon, 11 Aug 2014 10:55:01 UTC

Severity: normal

Found in version 4.0.2.1

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Subject: Bug#566: [X2Go-Dev] Bug#566: Bug#566: X2Go Client for Windows 4.0.2.1 cannot create C:\Users\<username>\ssh\known_hosts file when the local Windows account username has non-Ascii characters
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Date: Mon, 08 Sep 2014 08:52:31 +0000
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From: Mike Gabriel <mike.gabriel@das-netzwerkteam.de>
To: George Trakatelis <trakatelis@uom.edu.gr>, 566@bugs.x2go.org
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[Message part 1 (text/plain, inline)]
Hi Mike#2, hi George,

On  So 07 Sep 2014 12:04:51 CEST, George Trakatelis wrote:

> c. As toLocal8Bit() returns the local 8-bit representation of a string,
> I changed the system locale for non-unicode programs to German.
> Now the patch worked!
>
> I think the patch solves the problem for the Windows users who use English
> as a foreign language and prefer having (non-Ascii) usernames in  
> their native language.
>
> -George
>
> PS. A better title for the bug would be
>
> X2Go Client for Windows 4.0.2.1 cannot create  
> C:\Users\<username>\ssh\known_hosts file when the local Windows  
> account username has non-Ascii characters

Now that I think of it more thoroughly... Shouldn't we do a proper  
encode/decode here so that we convert UTF-8 to Windows-CP1251 encoding  
[1]?

Alternatively, one could work with filenames in UTF-16 as shown in  
this [2] example.

I am not sure about the exact position in the code that bugs this up,  
but I fear, the solution is non-trivial.

Either you need to detect the client-side encoding and convert between  
UTF-8 and that encoding, or we may consider addressing file names in  
UTF-16 (if that is possible in Qt).

Unfortunately, it seems that Windows uses different encodings at  
different places (e.g. command.exe vs. Windows Explorer).

Just guessing after a little bit of internet research on this,
Mike#1


[1] http://comments.gmane.org/gmane.comp.lib.qt.general/39868
[2] https://www.mail-archive.com/subsurface@hohndel.org/msg00099.html


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