X2Go Bug report logs - #1056
H264 videos working badly

version graph

Package: x2gobroker-authservice; Maintainer for x2gobroker-authservice is X2Go Developers <x2go-dev@lists.x2go.org>; Source for x2gobroker-authservice is src:x2gobroker.

Reported by: Walid MOGHRABI <w.moghrabi@servicemagic.eu>

Date: Fri, 8 Jul 2016 13:25:01 UTC

Severity: grave

Tags: patch, pending, stable

Merged with 1057

Found in version

Fixed in version

Done: X2Go Release Manager <git-admin@x2go.org>

Bug is archived. No further changes may be made.

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From: owner@bugs.x2go.org (X2Go Bug Tracking System)
Subject: Bug#1056 closed by X2Go Release Manager <git-admin@x2go.org>
 (X2Go issue (in src:x2gobroker) has been marked as closed)
Message-ID: <handler.1056.c.148062750821437.notifdone@bugs.x2go.org>
References: <20161201212459.BCF565DBE7@ymir.das-netzwerkteam.de>
X-X2go-PR-Keywords: pending patch stable
X-X2go-PR-Message: they-closed 1056
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Date: Thu, 01 Dec 2016 21:30:02 +0000
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This is an automatic notification regarding your Bug report
which was filed against the x2gobroker-authservice package:

#1056: H264 videos working badly

It has been closed by X2Go Release Manager <git-admin@x2go.org>.

Their explanation is attached below along with your original report.
If this explanation is unsatisfactory and you have not received a
better one in a separate message then please contact X2Go Release Manager <git-admin@x2go.org> by
replying to this email.

X2Go Bug Tracking System
Contact owner@bugs.x2go.org with problems
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From: X2Go Release Manager <git-admin@x2go.org>
To: 1056-submitter@bugs.x2go.org
Cc: control@bugs.x2go.org, 1056@bugs.x2go.org
Subject: X2Go issue (in src:x2gobroker) has been marked as closed
Date: Thu, 1 Dec 2016 22:24:59 +0100 (CET)
close #1056


we are very hopeful that X2Go issue #1056 reported by you
has been resolved in the new release ( of the
X2Go source project »src:x2gobroker«.

You can view the complete changelog entry of src:x2gobroker (
below, and you can use the following link to view all the code changes
between this and the last release of src:x2gobroker.


If you feel that the issue has not been resolved satisfyingly, feel
free to reopen this bug report or submit a follow-up report with
further observations described based on the new released version
of src:x2gobroker.

Thanks a lot for contributing to X2Go!!!

X2Go Git Admin (on behalf of the sender of this mail)

X2Go Component: src:x2gobroker
Date: Thu, 01 Dec 2016 22:19:47 +0100
Fixes: 1056
 x2gobroker ( RELEASED; urgency=low
   [ Mike Gabriel ]
   * debian/python-x2gobroker.preinst:
     + Use proper comment header explaining about preinst script argument
       calls (not postinst).
   * x2gobroker/brokers/base_brokers.py: Remove Perl code in comment that
     confuses the Epydoc tool.
   * API Documentation: Sanitize __doc__ strings to make Epydoc happy. Provide
     Makefile.docupload and provide html API documentation at
   [ Mihai Moldovan ]
   * New upstream version (
     - sbin/x2gobroker-authservice: refactor pam.pam section a bit. Always
       initialize opam with pam and only rewrite it with pam.pam if necessary.
     - x2gobroker/authmechs/pam_authmech.py: port pam.pam change to this file
       as well.
   * debian/control:
     - Maintainer change in package: X2Go Developers <x2go-dev@lists.x2go.org>.
     - Uploaders: add myself. Also, force a rebuild due to the changed
   * x2goserver.spec:
     - Add mandatory perl-generators Build-Requires as per
   [ Walid Moghrabi ]
   * New upstream version (
     - sbin/x2gobroker-authservice: adapt script to correctly use the newer
       python-pam module, which now exposes functionality in pam.pam with
       backwards compatibility. Fixes: #1056.

[Message part 3 (message/rfc822, inline)]
From: Walid MOGHRABI <w.moghrabi@servicemagic.eu>
To: submit@bugs.x2go.org
Subject: H264 videos working badly
Date: Fri, 8 Jul 2016 15:22:32 +0200 (CEST)
Package: x2gobroker-authservice 
Severity: grave
Tags: stable,patch

For days I was struggling with x2gobroker-authservice not working when authenticating against PAM.
I eventualy discovered it was the pam class instanciation in /usr/sbin/x2gobroker-authservice that was not working with the following error : 

error: uncaptured python exception, closing channel <__main__.AuthClient connected '' at 0x7f0aa5c11f80> (<type 'exceptions.AttributeError'>:'module' object has no attribute 'authenticate' [/usr/lib/python2.7/asyncore.py|read|83] [/usr/lib/python2.7/asyncore.py|handle_read_event|449] [/usr/sbin/x2gobroker-authservice|handle_read|81])

It seems the pam.py module has probably been refaktored in this Ubuntu making the authservice failing.

Here is a patch for the fix :

--- /usr/sbin/x2gobroker-authservice.dist	2016-07-08 15:07:40.387403000 +0200
+++ /usr/sbin/x2gobroker-authservice	2016-07-08 15:07:00.219403000 +0200
@@ -78,7 +78,11 @@
                 self.logger.warning('bad authentication data received')
-                if pam.authenticate(user, passwd, service):
+                if pam.pam:
+                    opam = pam.pam()
+                else:
+                    opam = pam
+                if opam.authenticate(user, passwd, service):
                     self.logger.info('successful authentication for \'{user}\' with password \'<hidden>\' against PAM service \'{service}\''.format(user=user, service=service))

Test conditions :
    * Ubuntu Server 16.04 LTS up to date (2016-07-08)
    * python-pampy : 1.8.2
    * x2gobroker-authservice : (from x2go/stable ppa)

Best regards,

Walid Moghrabi
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