x2go-dev July 2011

x2go-dev@lists.x2go.org

24 participants
62 discussions

x2goadmincenter goes Git
by Mike Gabriel 28 Jul '11

28 Jul '11

Hi all, FYI: http://code.x2go.org/gitweb?p=x2goadmincenter.git;a=summary Mike -- DAS-NETZWERKTEAM mike gabriel, dorfstr. 27, 24245 barmissen fon: +49 (4302) 281418, fax: +49 (4302) 281419 GnuPG Key ID 0xB588399B mail: mike.gabriel(a)das-netzwerkteam.de, http://das-netzwerkteam.de freeBusy: https://mail.das-netzwerkteam.de/freebusy/m.gabriel%40das-netzwerkteam.de.x…

1 0

x2goserver cleanup
by Mike Gabriel 28 Jul '11

28 Jul '11

hi all, today I have been working more on the x2goserver cleanup as described here: http://wiki.x2go.org/roadmap?&#somewhen_work_in_progress What I have done (in short) is: o x2goserver-compat package as a container to pick up all old x2goserver code (i.e. scripts that are not used by the recent clients anymore). x2goserver refers to this package with a Suggests: stanza. o scripts now get installed to $PREFIX/bin - scripts called from the client $PREFIX/sbin - scripts that are for the admin $PREFIX/lib/x2go - scripts called internally o moved man pages for scripts in $PREFIX/bin to man page section 1 o to get rid of hard coded full paths I have added a script x2gobasepath that detects the installation PREFIX (/usr, /usr/local, etc.) o Tested the tarball installer... - make && make install -> works - make uninstall -> works first time - make uninstall -> ignores all errors if not installed - INSTALL howto updated Greets, Mike -- DAS-NETZWERKTEAM mike gabriel, dorfstr. 27, 24245 barmissen fon: +49 (4302) 281418, fax: +49 (4302) 281419 GnuPG Key ID 0xB588399B mail: mike.gabriel(a)das-netzwerkteam.de, http://das-netzwerkteam.de freeBusy: https://mail.das-netzwerkteam.de/freebusy/m.gabriel%40das-netzwerkteam.de.x…

1 0

suidperl depreciated upstream?
by Milan Knížek 27 Jul '11

27 Jul '11

Hello List! perl-suid is the run-time dependency of x2goserver from the current Git. I have spent some time searching for a package (or PKGBUILD script) for Arch Linux and have not succeeded. Having also checked the current source code of Perl, I found the reason for it - the INSTALL file reads: ----- suidperl suidperl was an optional component of earlier releases of perl. It is no longer available. Instead, use a tool specifically designed to handle changes in privileges, such as sudo. ----- (I am aware about the sudo vs suidperl discussion held in February this year on the mailing list.) Is there any solution for those running the most recent perl (and for future in general)? Regards, Milan -- http://www.milan-knizek.net/ About linux and photography (Czech only) O linuxu a fotografování (pouze česky)

6 10

Command line alternatives to x2goclient-cli
by Daniel Lindgren 27 Jul '11

27 Jul '11

Hello. I mainly use x2goclient-cli to start/resume x2go sessions, for these reasons: - No sessions have to be created in the GUI, all necessary options are available as command line parameters. I can use aliases for all my sessions and they work on any machine that has x2goclient-cli installed, no further configuration necessary. - Easier to start multiple x2go sessions than with the QT client. - Automatically resumes existing session or starts a new one if needed. If I've interpreted recent mail traffic (and roadmap in wiki) correctly, x2goclient-cli is deprecated and will no longer be actively develeoped. As far as I can see there currently are two alternatives to using x2goclient-cli: - x2goclient (the QT client) with command line options. - pyhoca-cli. x2goclient works quite well from the command line (with --hide), but unfortunately you can't create a session only with command line options, it needs a manually (GUI) created session to be able to connect. If you use x2goclient on multiple machines with multiple sessions, it takes a lot of work to set them all up. If you want to change or add anything, all clients will have to be manually updated. pyhoca-cli supports needed command line options, but can't automatically resume an existing session, you have to manually list existing sessions and manually tell which session you want to reconnect to. Also, closing the window terminates the session, x2goclient and -cli suspend the session, you have to press Ctrl-C to suspend a pyhoca-cli session which is cumbersome if you've put it in the background. Are there any plans to add command line functionality to x2goclient to make it possible to connect/resume sessions without having to define them in the GUI? As far as I can see, the option --user would need to accept non-LDAP usernames and the options --server and --ssh-key would have to be added. Alternatively, can pyhoca-cli be updated with: - An option to automatically resume an existing session if there is one or create a new one if there isn't. - An option to suspend a running session if the windows is closed, not terminate it. Makes it possible to start pyhoca-cli in the background. Cheers, Daniel

2 4

MacOS Development of Python-X2go/PyHoca-GUI
by Mike Gabriel 26 Jul '11

26 Jul '11

Hi all, Stefan Baur (http://office.stefanbaur.de/) has temporarily (for an undefined period of time) provided Apple Hardware to the X2go project so that X2go client-side components can be maintained for MacOS again. The device (a Mini-MAC) was sent to me first so that Python X2go and PyHoca-GUI can evolve on and be adapted to MacOS devices. I will start this work after my holidays (first 2 weeks of August). Thanks a lot to Stefan for his contribution!!!!! Regards, Mike -- DAS-NETZWERKTEAM mike gabriel, dorfstr. 27, 24245 barmissen fon: +49 (4302) 281418, fax: +49 (4302) 281419 GnuPG Key ID 0xB588399B mail: mike.gabriel(a)das-netzwerkteam.de, http://das-netzwerkteam.de freeBusy: https://mail.das-netzwerkteam.de/freebusy/m.gabriel%40das-netzwerkteam.de.x…

2 1

X2goclient 3.99.0.0-0~94~lucid1 - core dump
by Fortier,Vincent [Montreal] 26 Jul '11

26 Jul '11

Used to work without any glitches using: ii x2goclient 3.01-5 x2goclient qt4 client But now using latest x2go client: [whoami@localhost ~]# dpkg -l | grep -i -e x2go -e nx ii libxcomp3 3.5.0-1-0~37~lucid1 NX X compression library ii lynx 2.8.8dev.2-1 Text-mode WWW Browser (transitional package) ii lynx-cur 2.8.8dev.2-1 Text-mode WWW Browser with NLS support (deve ii nxproxy 3.5.0-1-0~28~lucid1 NX X compression library ii pinentry-x2go 0.7.5.0-0~13~lucid1 Qt4-based PIN or pass-phrase entry dialog fo ii x2goclient 3.99.0.0-0~94~lucid1 X2go Client application (Qt4) I either get following message: "The remote proxy closed the connection while negotiating the session. This may be due to the wrong authentication credentials passed to the server" -- OR -- "The connection with the remote server was shut down. Please check the state of your network connection." -- OR -- It crashes with the following...: [whoami@localhost ~]# x2goclient ONMainWindow constructor Can't load translator (:/x2goclient_en_ca) ! Can't load translator :/qt_en_CA ONMainWindows constructor finished, home Directory is: "/net/wul/home/whoami" read 3 sessions from config file Have key, starting session start new ssh connection setting SSH DIR to "/net/wul/home/whoami/ssh" ssh connection ok continue normal x2go session Segmentation fault (core dumped) Note that this behaviour occurs with all Ubuntu builds... The old lenny based build works fine. - vin

1 0

[PATCH] Allow users to edit their *own* sessions only
by Reinhard Tartler 25 Jul '11

25 Jul '11

previously, users could create sessions under wrong uids or delete sessions from other users. This patch implements prevents this by checking the userid of the caller with the session id. --- x2goserver/lib/x2gosqlitewrapper.pl | 23 ++++++++++++++++++++--- 1 files changed, 20 insertions(+), 3 deletions(-) diff --git a/x2goserver/lib/x2gosqlitewrapper.pl b/x2goserver/lib/x2gosqlitewrapper.pl index 70ee4e5..8483f32 100755 --- a/x2goserver/lib/x2gosqlitewrapper.pl +++ b/x2goserver/lib/x2gosqlitewrapper.pl @@ -25,14 +25,14 @@ use strict; use DBI; use POSIX; -# retrieve home dir of x2gouser +# retrieve home dir of x2gouser my $x2gouser='x2gouser'; my ($uname, $pass, $uid, $pgid, $quota, $comment, $gcos, $homedir, $shell, $expire) = getpwnam($x2gouser); my $dbfile="$homedir/x2go_sessions"; # retrieve account data of real user my $realuser=$<; -my ($uname, $pass, $uid, $pgid, $quota, $comment, $gcos, $homedir, $shell, $expire) = getpwnam($realuser); +my ($uname, $pass, $uid, $pgid, $quota, $comment, $gcos, $homedir, $shell, $expire) = getpwuid($realuser); my $dbh=DBI->connect("dbi:SQLite:dbname=$dbfile","","",{AutoCommit => 1}) or die $_; @@ -81,6 +81,7 @@ elsif($cmd eq "listsessionsroot_all") elsif($cmd eq "getmounts") { my $sid=shift or die "argument \"session_id\" missed"; + check_user($sid); my @strings; my $sth=$dbh->prepare("select client, path from mounts where session_id=?"); $sth->execute($sid)or die; @@ -91,6 +92,7 @@ elsif($cmd eq "deletemount") { my $sid=shift or die "argument \"session_id\" missed"; my $path=shift or die "argument \"path\" missed"; + check_user($sid); my $sth=$dbh->prepare("delete from mounts where session_id=? and path=?"); $sth->execute($sid, $path); $sth->finish(); @@ -101,6 +103,7 @@ elsif($cmd eq "insertmount") my $sid=shift or die "argument \"session_id\" missed"; my $path=shift or die "argument \"path\" missed"; my $client=shift or die "argument \"client\" missed"; + check_user($sid); my $sth=$dbh->prepare("insert into mounts (session_id,path,client) values (?, ?, ?)"); $sth->execute($sid, $path, $client); if(!$sth->err()) @@ -115,6 +118,7 @@ elsif($cmd eq "insertsession") my $display=shift or die "argument \"display\" missed"; my $server=shift or die "argument \"server\" missed"; my $sid=shift or die "argument \"session_id\" missed"; + check_user($sid); my $sth=$dbh->prepare("insert into sessions (display,server,uname,session_id, init_time, last_time) values (?, ?, ?, ?, datetime('now','localtime'), datetime('now','localtime'))"); $sth->execute($display, $server, $realuser, $sid) or die $_; @@ -131,6 +135,7 @@ elsif($cmd eq "createsession") my $snd_port=shift or die"argument \"snd_port\" missed"; my $fs_port=shift or die"argument \"fs_port\" missed"; my $sid=shift or die "argument \"session_id\" missed"; + check_user($sid); my $sth=$dbh->prepare("update sessions set status='R',last_time=datetime('now','localtime'),cookie=?,agent_pid=?, client=?,gr_port=?,sound_port=?,fs_port=? where session_id=? and uname=?"); $sth->execute($cookie, $pid, $client, $gr_port, $snd_port, $fs_port, $sid, $realuser)or die; @@ -144,6 +149,7 @@ elsif($cmd eq "insertport") my $sid=shift or die "argument \"session_id\" missed"; my $sshport=shift or die "argument \"port\" missed"; my $sth=$dbh->prepare("insert into used_ports (server,session_id,port) values (?, ?, ?)"); + check_user($sid); $sth->execute($server, $sid, $sshport) or die; $sth->finish(); } @@ -152,6 +158,7 @@ elsif($cmd eq "resume") { my $client=shift or die "argument \"client\" missed"; my $sid=shift or die "argument \"session_id\" missed"; + check_user($sid); my $sth=$dbh->prepare("update sessions set last_time=datetime('now','localtime'),status='R', client=? where session_id = ? and uname=?"); $sth->execute($client, $sid, $realuser) or die; @@ -162,6 +169,7 @@ elsif($cmd eq "changestatus") { my $status=shift or die "argument \"status\" missed"; my $sid=shift or die "argument \"session_id\" missed"; + check_user($sid); my $sth=$dbh->prepare("update sessions set last_time=datetime('now','localtime'), status=? where session_id = ? and uname=?"); $sth->execute($status, $sid, $realuser)or die; @@ -170,7 +178,6 @@ elsif($cmd eq "changestatus") elsif($cmd eq "getdisplays") { - #ignore $server my @strings; my $sth=$dbh->prepare("select display from sessions"); @@ -222,6 +229,7 @@ elsif($cmd eq "getagent") { my $sid=shift or die "argument \"session_id\" missed"; my $agent; + check_user($sid); my $sth=$dbh->prepare("select agent_pid from sessions where session_id=?"); $sth->execute($sid)or die; @@ -239,6 +247,7 @@ elsif($cmd eq "getdisplay") { my $sid=shift or die "argument \"session_id\" missed"; my $display; + check_user($sid); my $sth=$dbh->prepare("select display from sessions where session_id =?"); $sth->execute($sid)or die; @@ -296,6 +305,14 @@ sub checkroot } } +sub check_user +{ + my $sid=shift or die "argument \"session_id\" missed"; + # session id looks like someuser-51-1304005895_stDgnome-session_dp24 + my ( $user, $rest ) = split('-', $sid, 2); + $user eq $uname or die "$uname is not authorized (should be $user)"; +} + sub fetchrow_printall_array { # print all arrays separated by the pipe symbol -- 1.7.4.1

4 10

3.99 Testing - General sluggishness
by John A. Sullivan III 22 Jul '11

22 Jul '11

I suppose I'll cover this one next as John Williams raised one of the issues. This is another Windows only issue. This issue has two categories. It is complicated by the packing problem because we can only run the Windows client now with sub-optimal packing but it was a problem before the corruption issue struck. Screen painting is just slower - not just a little slower - a lot slower. The typical anecdotal test I've been using is scrolling through my Evolution Inbox. Evolution has always seemed to have terrible graphics handling. I don't know what it does but it is always sluggish and awkward - thus an excellent test of how well we handle challenging graphics. Even under Linux on a LAN, scrolling is miserably slow. Shift down arrow and wait 1/4 second for a response. This is really annoying. However, in Windows, it is wait 1/2 to 3/4 seconds for a response. This takes it from annoying to dangerous as users wind up deleting or opening unintended emails, i.e., the hold the shift down arrow until they think they have highlighted the mails they want and then press enter. What they don't realize is that five more emails will be selected because of the delay between what they see and the key buffer. The other problem is a show stopper but I'm not sure it is an X2Go issue. I think this is the same issue John Williams is seeing. We see it only in Windows and Iceweasel. It appears that Iceweasel hangs for quite a long time - not just a few seconds. My guess is 30 seconds to a minute or more. The system is really not hung. All other applications work fine and the screen paints normally. It is just the Iceweasel screen which does not paint. Then, all at once, all the keystrokes and clicks are suddenly executed. It's as if the events are being buffered or stored and not sent. Although we cannot rule it out, we think we have only seen this in a single scenario - when using the Zimbra web client chat feature. All other browsing and multi-tab activity seems to be fine but, as soon as someone sends me a chat message, Iceweasel painting stops . . . some of the time. Other times it works perfectly fine. Once, it gave me a white screen of death. Another time, it completely killed vcxsrv. Most of the time, it causes this event execution delay. I can merrily go and use other applications and all events are processed with no noticeable delay; I just can use Iceweasel. Then, everything catches up, all the events are processed, and all is well with the world once again. Zimbra is a heavy AJAX application. I don't know if the application John Williams is using is also heavily AJAX driven - John

2 5

x2goclient win32 build howto
by Mike Gabriel 22 Jul '11

22 Jul '11

Hi Alex, Heinz, Phil, AFAIK your are the only three people you know how to build x2goclient for Win32. It would be really great to have some build instructions (a cook recipe) in the X2go Wiki. Here is the still empty page for this: http://wiki.x2go.org/build-x2goclient-for-win32 It would be great if any of you could see to this job!!!! THANKS!!! Mike -- DAS-NETZWERKTEAM mike gabriel, dorfstr. 27, 24245 barmissen fon: +49 (4302) 281418, fax: +49 (4302) 281419 GnuPG Key ID 0xB588399B mail: mike.gabriel(a)das-netzwerkteam.de, http://das-netzwerkteam.de freeBusy: https://mail.das-netzwerkteam.de/freebusy/m.gabriel%40das-netzwerkteam.de.x…

1 0

3.99 Testing - Return from full screen mode not working
by John A. Sullivan III 22 Jul '11

22 Jul '11

This is also a Windows only issue. When in full screen mode there is no way to exit it other than <Alt><Tab>. The standard ways of leaving full screen (magic pixel in top right, Alt-Ctl-F, or Alt-Ctl-M) do not work. Hmm . . . come to think of it, I do not think I tried Alt-Ctl-Enter but I am not in Windows now to test it - John

1 0

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

x2go-dev July 2011