[X2go-Dev] Two problems (crashes) with X2goclient for Microsoft Windows

[Stefan Baur]

Hi List,

subject says it all, so here's a short description of the test environment:

Server is a vserver running Debian Lenny (oldstable/5.0.9) but the 
2.6.32-5-vserver-amd64 kernel (as the host is Debian Squeeze).
dpkg -l|grep x2go
ii  nxcompshad                           
3.4.0-1-1                                  nx based library needed by 
the x2go system
ii  x2go-keyring                         
2011.04.19+lenny~main~10~build1            GnuPG keys of X2go developers
ii  x2goagent                            
3.4.0-3-1                                  Special NX-ized client, was 
developed by NoMachine to handle X
ii  x2goserver                           
3.0.99.8-0~x2go-bpo1+lenny~main~388~build1 X2go server daemon scripts
ii  x2goserver-extensions                
3.0.99.8-0~x2go-bpo1+lenny~main~388~build1 X2go server daemon scripts 
(extensions)

Client is "Windows 7 Home Premium", 32-Bit, running X2Go Client 
V.3.99.0.1 (Qt-4.5.3) - not a clean install, but installed over a 
previous, older version.

1) Accidentally attempting to connect to the wrong server crashes the 
client.
What happened:
* Host is configured to use private key files and doesn't have a 
corresponding user
* Vserver is running sshd on a different IP/port
* Client connects to the host instead of the vserver due to the wrong 
port number, using password-interactive authentication, which is denied 
by the server, also, there is no user present on the host that matches 
the given username
==>Crash (System message offering to close the program or look online 
for help)

2) Attempting to connect to a host that has a different ssh key than the 
one seen previously shows a small popup "Authentication failed" that 
complains about the offending key, but it immediately causes a Crash 
(same as above) - there's not even a chance to click on the "OK" button 
of that popup.

Both cases should be handled more gracefully.

Kind Regards,
Stefan