x2go-dev January 2015

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Bug#738: X2GoClient should make use of an open-source PDF viewer and integrate that, for easier printing support
by Stefan Baur 10 Jan '15

10 Jan '15

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 package: x2goclient severity: wishlist The current way of client-side printing is rather error-prone (see various complaints on the mailing lists lately), also, it requires the user to be in the fuse group on the server. Which opens the can of worms that the user can now also use the built-in file sharing, which may not be desirable in all circumstances. Therefore, I would like to suggest the following as new method of printing: * x2goclient opens an SSH tunnel: -R<somenumber>:127.0.0.1:<someothernumber> * <somenumber> should start at a number above 1024, obviously, and a mechanism must be in place that determines a free port number, then uses that. * <someothernumber> should also be a number above 1024, starting at a fixed base number and incrementing with each user/session (similar to X2Go session numbers). * on the server, CUPS-X2GO creates a PDF (optionally, compressed using gzip, bzip2 or xz - information about the compression method used could be conveyed in a PJL header comment field) and streams it to socket://127.0.0.1:<someothernumber> I'm assuming the following two steps are a non-issue for Mac OS X and Linux, as CUPS is used natively there, and all we have to do there is connect the two CUPSes via a simple portforwarding. * On Windows, x2goclient pipes the incoming data either directly as a stream, or via a temporary file, to a PDF viewer, which (in the simplest case) is set to automatically print to the default printer * optionally, we could pop up the print dialog, though this will add more complexity * for ease of use, we should either ship SumatraPDF (a free PDF viewer that can be automated via command line options) with x2goclient, just as we currently do with pulseaudio and vcxsrv, or integrate the relevant parts of SumatraPDF directly into x2goclient, if based on the same programming language, and being licensed unter terms compatible with ours. 1) This eliminates the need for having users in the FUSE group to merely print a document, 2) also, if we can get SumatraPDF to accept the bitstream, it would even eliminate the need for a temporary file on the client, 3) lastly, by shipping a PDF viewer/printer, we make it easier for the user by providing a sane default (like we do with vcxsrv - users still can use a different X server if they choose to, but they don't have to download one manually first and worry to get the configuration right). Portable version of SumatraPDF is here: https://kjkpub.s3.amazonaws.com/sumatrapdf/rel/SumatraPDF-3.0.zip Sources are here: https://github.com/sumatrapdfreader/sumatrapdf - -Stefan - -- BAUR-ITCS UG (haftungsbeschränkt) Geschäftsführer: Stefan Baur Eichenäckerweg 10, 89081 Ulm | Registergericht Ulm, HRB 724364 Fon/Fax 0731 40 34 66-36/-35 | USt-IdNr.: DE268653243 -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (MingW32) iQEcBAEBAgAGBQJUsPiNAAoJEG7d9BjNvlEZ4zgH+wRUNRHBCyzTWhk8F68/2Ahp XMNKbmnvdsTIaUz5xHwgLPvxze3FaagY5SxJt5y3Td7EujdfZ0jbaVezZHMYUHdd bKjKgfoJDu7BWk/39440eyOnv6f2yIbhnXYfrV+un2n8PC5IykNZVCm/MopBEvVb IcIh8xcMbVHmSpDcDNRGcE0hBafPE7+0G74Mtsc9O8ZNoi7PcIO1g9EWHUXATLxc f954dr2n1RTDddQ5L5c/UTlZ8r9x2Rw8mXkRhVcu3XVNoyFmFb9l3R4kRoF1pp5M 45fztzY3HZH4KmhiyEk8fhlDQbH9kYx0FJ0NdJbb4Kk5Soc+usmItcwBZ3tPLU8= =noNS -----END PGP SIGNATURE-----

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Bug#711: x2goserver: trusty armhf no package available
by Heinrich Schuchardt 10 Jan '15

10 Jan '15

Package: x2goserver Version: 4.0.1.9 I am running Lubuntu trusty on an armhf server. I tried to install x2goserver as described on http://wiki.x2go.org/doku.php/wiki:repositories:ubuntu I found at least the following packages are missing: x2goserver nxagent Could you, please, upload the missing packages. Best regards Heinrich Schuchardt

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Bug#736: implement Telekinesis client support for X2Go Client on Linux
by Mike Gabriel 10 Jan '15

10 Jan '15

Package: x2goclient Severity: wishlist It would be nice having Telekinesis client support implemented in X2Go Client. The implementation in Python X2Go can be viewed at [1]. Mike [1] http://code.x2go.org/gitweb?p=python-x2go.git;a=blob;f=x2go/telekinesis.py -- DAS-NETZWERKTEAM mike gabriel, herweg 7, 24357 fleckeby fon: +49 (1520) 1976 148 GnuPG Key ID 0x25771B31 mail: mike.gabriel(a)das-netzwerkteam.de, http://das-netzwerkteam.de freeBusy: https://mail.das-netzwerkteam.de/freebusy/m.gabriel%40das-netzwerkteam.de.x…

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Bug#735: let authentication become more consistent: always fall-back to username+password logins
by Mike Gabriel 10 Jan '15

10 Jan '15

Package: x2goclient Severity: wishlist For the sake of consistency with ssh-agent based logins or pubkey based logins, GSSAPI should also fallback to username+password login if GSSAPI fails. Currently, it simply reports an error (which is actually nice), but after the error, the GUI should allow giving username and password. The user should not notice a different whether he selects pubkey auth, agent auth or GSSAPI auth (and then experiences a failure)... Mike -- DAS-NETZWERKTEAM mike gabriel, herweg 7, 24357 fleckeby fon: +49 (1520) 1976 148 GnuPG Key ID 0x25771B31 mail: mike.gabriel(a)das-netzwerkteam.de, http://das-netzwerkteam.de freeBusy: https://mail.das-netzwerkteam.de/freebusy/m.gabriel%40das-netzwerkteam.de.x…

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Bug#734: ssh-agent gets used although GSSAPI is enabled and agent-auth is disabled
by Mike Gabriel 10 Jan '15

10 Jan '15

Package: x2goclient Version: 4.0.3.1 Severity: important Control: block -1 by 733 I have... autologin=false krblogin=true _plus_ a running ssh-agent, loaded with my private SSH key. The X2Go Server has the public SSH key belonging to the private key loaded into the agent. If the remote server does not support GSSAPIauthentication (set to "no" via sshd_config), then X2Go Client should fall back to username+password (KbdInteractiveAuthentication). At the time of writing this, X2Go Client nonetheless uses the running ssh-agent and performs a PubkeyAuthentication. However, this breaks GSSAPI credentials delegation... Mike -- DAS-NETZWERKTEAM mike gabriel, herweg 7, 24357 fleckeby fon: +49 (1520) 1976 148 GnuPG Key ID 0x25771B31 mail: mike.gabriel(a)das-netzwerkteam.de, http://das-netzwerkteam.de freeBusy: https://mail.das-netzwerkteam.de/freebusy/m.gabriel%40das-netzwerkteam.de.x…

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Processed: your mail
by owner＠bugs.x2go.org 10 Jan '15

10 Jan '15

Processing commands for control(a)bugs.x2go.org: > reassign #560 x2goserver Bug #560 [nxagent] nxagent (and thus x2go-server) uninstallable on ARM hardware Bug reassigned from package 'nxagent' to 'x2goserver'. No longer marked as found in versions 2:3.5.0.27-0~446~ubuntu14.04.1. Ignoring request to alter fixed versions of bug #560 to the same values previously set > forcemerge #711 #560 Bug #711 [x2goserver] x2goserver: trusty armhf no package available Bug #560 [x2goserver] nxagent (and thus x2go-server) uninstallable on ARM hardware There is no source info for the package 'x2goserver' at version '4.0.1.9' with architecture '' Unable to make a source version for version '4.0.1.9' Marked as found in versions 4.0.1.9. Added tag(s) not-a-bug and wontfix. Merged 560 711 > thanks Stopping processing here. Please contact me if you need assistance. -- 560: http://bugs.x2go.org/cgi-bin/bugreport.cgi?bug=560 711: http://bugs.x2go.org/cgi-bin/bugreport.cgi?bug=711 X2Go Bug Tracking System Contact owner(a)bugs.x2go.org with problems

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Bug#713: X2Go issue (in src:x2goclient) has been marked as pending for release
by Mike Gabriel 10 Jan '15

10 Jan '15

tag #713 pending fixed #713 4.0.3.2 thanks Hello, X2Go issue #713 (src:x2goclient) reported by you has been fixed in X2Go Git. You can see the changelog below, and you can check the diff of the fix at: http://code.x2go.org/gitweb?p=x2goclient.git;a=commitdiff;h=46c9fe8 The issue will most likely be fixed in src:x2goclient (4.0.3.2). light+love X2Go Git Admin (on behalf of the sender of this mail) --- commit 46c9fe8577d578b98fef1824dc3072ec8750900c Author: Heinrich Schuchardt <xypron.glpk(a)gmx.de> Date: Sat Jan 10 00:58:39 2015 +0100 Base the layout dialogue "Session ID" (which shows up when starting a connection) on typographic points (instead of pixels). (Fixes: #713). diff --git a/debian/changelog b/debian/changelog index 21e06c5..e9b5216 100644 --- a/debian/changelog +++ b/debian/changelog @@ -29,6 +29,10 @@ x2goclient (4.0.3.2-0x2go1) UNRELEASED; urgency=medium - Fix quotes when calling remote commands via SSH (esp. allow same quoting/ escaping style for libssh and openSSH+Krb based connections). (Fixes: #720). + [ Heinrich Schuchardt ] + - Base the layout dialogue "Session ID" (which shows up when starting a + connection) on typographic points (instead of pixels). (Fixes: #713). + [ Jason Alavaliant ] * New upstream verson (4.0.3.2): - Use QUrl::toPercentEncoding() method to properly encode passwords sent

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Bug#712: x2goserver: armhf unfulfilled dependency
by Heinrich Schuchardt 09 Jan '15

09 Jan '15

Package: x2goserver Version: 4.0.1.18 x2goserver depends on libdbd-pg-perl. This package is only available for architectures amd64 and i386. Please, change debian/control such that the dependency is recommended only on architectures amd64 and i386 Background: x2goserver can run on SQLite. No need to force a dependency on PostgreSQL. Better check while running if the Perl module can be loaded: # imports into current package BEGIN { unless (eval "use $mod") { warn "couldn't load $mod: $@"; } } Best regards Heinrich Schuchardt

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Bug#733: SSH GSSAPI: use master+slave sockets
by Mike Gabriel 09 Jan '15

09 Jan '15

Package: x2goclient Severity: wishlist Version: 4.0.3.1 Control: block #732 by -1 Currently, X2Go Client SSH GSSAPI code does repetetive authentications against the X2Go Server (via GSSAPI) when setting up an X2Go Session. Instead of requiring an authentication for each SSH command evocation, it would be more handy to do one authentication in sshmasterconnection.cpp (already there), set all ssh option (e.g. PubkeyAuthentication=no, etc.) there (because the sshmasterconnection.cpp is aware of session properties like autologin=true|false, key file, etc.) and then use the master/slave concept in SSH for every follow up SSH command. IMHO, we need to implement the above, before we can fix #732 [1]. Mike [1] http://bugs.x2go.org/732 -- DAS-NETZWERKTEAM mike gabriel, herweg 7, 24357 fleckeby fon: +49 (1520) 1976 148 GnuPG Key ID 0x25771B31 mail: mike.gabriel(a)das-netzwerkteam.de, http://das-netzwerkteam.de freeBusy: https://mail.das-netzwerkteam.de/freebusy/m.gabriel%40das-netzwerkteam.de.x…

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Bug#732: X2Go Client falls back to SSH pub/priv key auth if GSSAPI fails
by Mike Gabriel 09 Jan '15

09 Jan '15

Package: x2goclient Severity: important Version: 4.0.3.1 I have not yet obtained a Kerberos ticket via kinit... I have an SSH private key protected with a passphrase... My X2Go session profile configuration for SSH auth is: key= krblogin=true autologin=false krbdelegation=false I expect authentication to fail (reporting that my ticket cache is empty or such). What happens is this: """ x2go-INFO-1> "Starting x2goclient..." x2go-WARNING-1> "Can't load translator: :/x2goclient_c" x2go-WARNING-2> "Can't load translator: :/qt_C" x2go-DEBUG-../onmainwindow.cpp:1203> Removing apps from tray x2go-DEBUG-../onmainwindow.cpp:1171> Plugging apps in tray. x2go-INFO-3> "Started x2goclient." x2go-DEBUG-../onmainwindow.cpp:490> "$HOME=/home/mike" x2go-DEBUG-../onmainwindow.cpp:2118> Reading 72 sessions from config file. QPixmap::scaled: Pixmap is a null pixmap x2go-DEBUG-../onmainwindow.cpp:2663> Starting session via smartcard, ssh-agent or kerberos token. x2go-DEBUG-../onmainwindow.cpp:1203> Removing apps from tray x2go-INFO-8> "Starting connection to server: <host>:<port>" x2go-DEBUG-../onmainwindow.cpp:2697> Start new ssh connection to server:"<host>":"<port>" krbLogin: true x2go-DEBUG-../sshmasterconnection.cpp:198> starting ssh connection with kerberos authentication x2go-DEBUG-../sshmasterconnection.cpp:206> SshMasterConnection, instance SshMasterConnection(0x1f0b670) created x2go-DEBUG-../sshmasterconnection.cpp:442> SshMasterConnection, instance SshMasterConnection(0x1f0b670) entering thread x2go-DEBUG-../sshmasterconnection.cpp:478> libSsh not inited yet, initting x2go-DEBUG-../sshmasterconnection.cpp:789> cserverAuth x2go-DEBUG-../sshmasterconnection.cpp:804> state: 1 x2go-DEBUG-../sshmasterconnection.cpp:1153> starting ssh:"ssh -o GSSApiAuthentication=yes mike@<host> -p <port> -o PasswordAuthentication=no sh -c 'echo X2GODATABEGIN:df7fa883-5dc3-4623-b9dd-16b62f069fc5; whoami; echo X2GODATAEND:df7fa883-5dc3-4623-b9dd-16b62f069fc5;'" Enter passphrase for key '/home/mike/.ssh/id_rsa': """ X2Go Client waits for me entering my SSH private key password while setting up the SSH master connection. This should not happen... Authentication should fail and a proper error message (GSSAPI requires a valid Kerberos ticket cache or similar) should be reported. Mike -- DAS-NETZWERKTEAM mike gabriel, herweg 7, 24357 fleckeby fon: +49 (1520) 1976 148 GnuPG Key ID 0x25771B31 mail: mike.gabriel(a)das-netzwerkteam.de, http://das-netzwerkteam.de freeBusy: https://mail.das-netzwerkteam.de/freebusy/m.gabriel%40das-netzwerkteam.de.x…

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x2go-dev January 2015