[X2Go-Dev] Usernames with dashes causes errors?

[Mike Gabriel]

Hi Christoffer,

On Di 21 Feb 2012 12:58:08 CET christoffer krakou wrote:

> Hello x2go people :)
>
> i have a server running Ubuntu 11.10 with an x2goserver  
> installation, version 3.0.99.10-0~434~oneiric1, and it is running  
> well and stable.
>
> We had some strange problems, though. We contacted a school, who  
> would help us test the server under daily use, and made some test  
> users for them, called "test-*their name*". When they, and i, tried  
> to log into those users, the client would freeze, no error message  
> or anything. On the server, the x2goagent would run amok, soaking up  
> CPU power. The problem seems to occur only on users with dashes in  
> their names.
>
> Can anyone replicate this? it is quite strange

The issue has been addressed in the server code with Git commit:
http://code.x2go.org/gitweb?p=x2goserver.git;a=commitdiff;h=305f7e897420aa9b0e151ffd37b7e1dd62def9e8

However, x2goclient as well as python-x2go have to become aware of "-"  
in usernames.

The patch is fully compliant with older x2goclient implementations.  
However, there is still a patch needed for x2goclient and python-x2go.  
With python-x2go (pyhoca-gui) the session startup already works. Just  
tested with x2goclient, as well, which worked out fine, as well.

However, all features and add-ons for/of X2Go have to be tested  
against this new "-"-character-in-user-demands.

The applied patch only addresses X2Go servers running with the SQLite  
DB backend (default installation). For PostgreSQL DB backend X2Go  
servers, the issue has to be investigated still.

Christoffer! Your (and others) turn! (Debian packages are already  
available, Ubuntu packages will come over night, test from the nightly  
repositories, please)

Mike


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