Re: [Sshtools-users] encoding

[David K. <dk...@cy...>]

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Just for the records.
- - I've modified all subclasses of  
com.sshtools.j2ssh.subsystem.SubsystemMessage in the package  
com/sshtools/j2ssh/sftp that call the method writeString of the  
ByteArrayWriter to encode the string first with UTF-8 (or any other  
encoding) before writing.
- - Also, in all calls to readString, I decode the string after reading.
- - In ByteArrayOutputStream the implementation of writeString has been  
changed from
	write(str.getBytes("US-ASCII"));
to
	 write(str.getBytes());

The changes are available at
http://sudo.ch/cgi-bin/viewcvs.cgi/cyberduck-cocoa/source/com/sshtools/ 
j2ssh/sftp/

My sftp client now even displays chinese characters in file listings :)

- --dk

On Jan 16, 2004, at 7:27 PM, David Kocher wrote:

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> Hi,
> 	I've problems with J2SSH (in particular with filenames over SFTP)  
> with characters outside the ASCII range. I think I isolated the  
> problem to be in com.sshtools.j2ssh.io.ByteArrayWriter where in  
> writeString(String str) it decodes the supplied string using ASCII  
> encoding
>
>     public void writeString(String str) throws IOException {
>         if (str == null) {
>             writeInt(0);
>         } else {
>             writeInt(str.length());
>             write(str.getBytes("US-ASCII"));
>         }
>     }
>
> However, this raises a few questions:
> - - How do I determine the encoding of filenames from the remote  
> system to properly decode them to the encoding used on the client  
> system?
> - - Is it a good idea to encode every control statement with i.e.  
> ISO-8859-1 although this would be only needed with filenames (and  
> probably even has some side effects I might not be aware of)
> - - Should I rather do the encoding in the specific SubsystemMessage  
> messages in com.sshtools.sftp.* ?
>
> Any help appreciated
> - --dk
>
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