lightdm-guest-session profile is too strict to input Japanese text with fcitx-mozc

[Nobuto Murata]

[Impact]
Unable to input Japanese text in guest session.

[Test Case]
1. Log into guest session
2. Enable Japanese input method (fcitx-mozc)
3. Enter Japanese text in gedit

Expected result:
Text can be entered

Observed result:
mozc gives an error saying "Failed to start Kana/Kanji conversion program. You need to reboot".
[possibly related messages]
10月 26 00:40:29 test-Standard-PC-i440FX-PIIX-1996 kernel: audit: type=1400 audit(1445787629.866:709): apparmor="DENIED" operation="link" profile="/usr/lib/lightdm/lightdm-guest-session" name="/dev/shm/sem.69ef545277bb" pid=9534 comm="fcitx" requested_mask="l" denied_mask="l" fsuid=120 ouid=120 target="/dev/shm/oFbWJv"
10月 26 00:40:29 test-Standard-PC-i440FX-PIIX-1996 kernel: audit: type=1400 audit(1445787629.870:710): apparmor="DENIED" operation="bind" profile="/usr/lib/lightdm/lightdm-guest-session" pid=9554 comm="mozc_server" family="unix" sock_type="stream" protocol=0 requested_mask="bind" denied_mask="bind" addr="@tmp/.mozc.d23bc799563c3f748fa591c15f46c971.session"

[Regression potential]
Low. More permissions were added to AppArmor configuration.

[Nobuto Murata (nobuto)]

output of `journalctl -k`.

[Launchpad Janitor (janitor)]

This bug was fixed in the package fcitx - 1:4.2.9.1-1ubuntu1

---------------
fcitx (1:4.2.9.1-1ubuntu1) xenial; urgency=medium

  * Install apparmor configuration (LP: #1509829)

 -- Aron Xu <email address hidden> Tue, 22 Mar 2016 21:33:56 +0800

[Launchpad Janitor (janitor)]

This bug was fixed in the package lightdm - 1.19.0-0ubuntu1

---------------
lightdm (1.19.0-0ubuntu1) yakkety; urgency=medium

  * New upstream release:
    - Use /dev/tty0 instead of /dev/console for VT operations (LP: #1566073)
    - Don't quit on SIGUSR1, SIGUSR2 or SIGHUP (LP: #960157)
    - Improve XDMCP IPv6 address selection (LP: #1575200)
    - Set XDMCP hostname field in to system hostname or configured value
      (LP: #1578442)
    - Allow fcitx and mozc to run in guest session (LP: #1509829)
    - Fix lxsession running in guest session
    - Drop support for legacy XMir
    - Fix g_spawn compiler warning
  * debian/rules:
    - Fix usage of dh_installinit (LP: #1292990)

 -- Robert Ancell <email address hidden> Thu, 05 May 2016 12:23:45 +1200

[Brian Murray (brian-murray)]

Hello Nobuto, or anyone else affected,

Accepted lightdm into xenial-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/lightdm/1.18.2-0ubuntu1 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, and change the tag from verification-needed to verification-done. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed. In either case, details of your testing will help us make a better decision.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance!

[Launchpad Janitor (janitor)]

This bug was fixed in the package lightdm - 1.18.2-0ubuntu1

---------------
lightdm (1.18.2-0ubuntu1) xenial; urgency=medium

  * New upstream release:
    - Don't quit on SIGUSR1, SIGUSR2 or SIGHUP (LP: #960157)
    - Use MIR_SERVER_HOST_SOCKET instead of MIR_SOCKET to report compositor
      socket to sessions. This used to work but no longer works in Mir 0.21
      (LP: #1583624)
    - Use only a single compositor on xlocal seats (LP: #1594229)
    - Fix Mir greeter log filename having "(null)" in the name (LP: #1590582)
    - Set XDMCP hostname field in to system hostname or configured value
      (LP: #1578442)
    - Improve XDMCP IPv6 address selection (LP: #1575200)
    - Allow fcitx and mozc to run in guest session (LP: #1509829)
    - Fix uninitialized memory errors
  * debian/lightdm.dirs:
    - Ensure user configuration directories /etc/lightdm/lightdm.conf.d and
      /etc/guest-session exist
  * debian/guest-account.sh:
  * debian/guest-session-setup.sh:
    - Source prefs.sh as privileged user to allow user modification
      (LP: #1581853)

 -- Robert Ancell <email address hidden> Tue, 21 Jun 2016 12:49:01 +1200