On Thu, Jun 11, 2009 at 05:00:52PM +0200, Peter Rosin wrote:
> Den 2009-06-11 12:15 skrev Daniel P. Berrange:
>> On Thu, Jun 11, 2009 at 11:15:14AM +0200, Peter Rosin wrote:
>>> Having a security type named UTF-8, which simply allowed the client
>>> to select the "real" security type right after it would perhaps not be
>>> so difficult.
>>
>> I've never much liked the idea of stealing security types to negotiate
>> non-security related features myself. It is pretty trivial to implement
>> the DesktopName encoding. So if we did it with a pseudo-encoding, the
>> serverinit message would still be ASCII, but would recommend that the
>> server send a DesktopName message with the UTF-8 encoded name version.
>
> Right, the UTF-8 extension as a pseudo-encoding is adequate. +1
>
> Question is if this UTF-8 extension should affect anything other than
> the ServerInit and {Client|Server}CutText messages.The transition should affect all RFB messages containing strings IMHO, whether defined now or in the future. > I.e. should DesktopName be assumed to be ASCII only until UTF-8 has > been seen by the client or should DesktopName always be UTF-8? As was noted earlier in this thread, existing server impls use pretty much anything as their charset, but typically their OS native encoding. So I think we have to take account of that for initial state, and thus the spec should say something like "The initial RFB character encoding for all strings is 7-bit ASCII. Clients and servers receiving strings with 8-bit high characters, may choose to interpret them according to their default locale, or strip the 8-bit high characters. Clients supporting UNICODE should advertise the UTF-8 pseudo encoding. A server supporting UNICODE will respond with an empty framebuffer update with this encoding type. At this point all future strings transmitted shall be in UTF-8 encoding. A client or server receiving invalid UTF-8 data should terminate the connection." Regards, Daniel -- |: http://berrange.com/ -o- http://www.flickr.com/photos/dberrange/ :| |: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: http://freshmeat.net/~danielpb/ -o- http://gtk-vnc.sourceforge.net :| ------------------------------------------------------------------------------ Crystal Reports - New Free Runtime and 30 Day Trial Check out the new simplified licensing option that enables unlimited royalty-free distribution of the report engine for externally facing server and web deployment. http://p.sf.net/sfu/businessobjects _______________________________________________ tigervnc-rfbproto mailing list tigervnc-rfbproto@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/tigervnc-rfbproto
