Merge pull request #56 from KanoComputing/logon-session-tracker

Adding lightdm hook scripts to track user login sessions

debian/install

@@ -25,3 +25,5 @@ gtk-themes/Kano usr/share/themes
 bin/kano-screenshot-hotkey usr/bin
 bin/kano-uixinit usr/bin
 bin/open-me.sh etc/skel/.Rabbithole
+
+scripts/* usr/share/kano-desktop/scripts

debian/postinst

@@ -23,6 +23,10 @@ SQUEAKDIR=/usr/share/squeak
 
 TMP_SUDOERS_FILE=/tmp/kano-desktop_conf
 
+ldm_conf=/etc/lightdm/lightdm.conf
+ldm_login=/usr/share/kano-desktop/scripts/ldm-session-setup-script
+ldm_logout=/usr/share/kano-desktop/scripts/ldm-session-cleanup-script
+
 case "$1" in
     configure)
 
@@ -92,6 +96,10 @@ case "$1" in
         # Move the file to the sudoers directory
         mv $TMP_SUDOERS_FILE /etc/sudoers.d/
 
+        # Add login and logoff hooks to track usage of the kit
+        sed -i "s|#\?\(session-setup-script\=\).*|\1$ldm_login|" $ldm_conf
+        sed -i "s|#\?\(session-cleanup-script\=\).*|\1$ldm_logout|" $ldm_conf
+
         ;;
 esac
 

debian/postrm

@@ -16,6 +16,10 @@ lxde_autostart=/etc/xdg/lxsession/LXDE/autostart
 
 SUDOERS_FILE=/etc/sudoers.d/kano-desktop_conf
 
+ldm_conf=/etc/lightdm/lightdm.conf
+ldm_login=/usr/share/kano-desktop/scripts/ldm-session-setup-script
+ldm_logout=/usr/share/kano-desktop/scripts/ldm-session-cleanup-script
+
 case "$1" in
     remove|upgrade)
 
@@ -55,6 +59,10 @@ case "$1" in
         # remove sudoers file to switch VTs
         rm -f $SUDOERS_FILE
 
+        # Remove login and logoff hooks
+        sed -i "s|#\?\(session-setup-script\=\).*|#\1|" $ldm_conf
+        sed -i "s|#\?\(session-cleanup-script\=\).*|#\1|" $ldm_conf
+
         ;;
 esac
 

scripts/ldm-session-cleanup-script

@@ -0,0 +1,20 @@
+#!/bin/bash
+
+# ldm-session-cleanup-script
+#
+# Copyright (C) 2014 Kano Computing Ltd.
+# License: http://www.gnu.org/licenses/gpl-2.0.txt GNU General Public License v2
+#
+#  https://wiki.ubuntu.com/LightDM
+#
+#  This script is called by lightm when the user logs off
+#  We collect the time the users spent on this session and save it on the tracker
+#
+
+started=`cat /home/$USER/.session-started`
+finish=$(date +"%s")
+session_time=$(($finish-$started))
+
+su - $USER -c "kano-profile-cli increment_app_runtime logon-session $session_time"
+
+return 0

scripts/ldm-session-setup-script

@@ -0,0 +1,17 @@
+#!/bin/bash
+
+# ldm-session-setup-script
+#
+# Copyright (C) 2014 Kano Computing Ltd.
+# License: http://www.gnu.org/licenses/gpl-2.0.txt GNU General Public License v2
+#
+#  https://wiki.ubuntu.com/LightDM
+#
+#  This script is called by lightm during user logon session
+#  We save the current time here so we can estimate usage timings
+#
+
+su - $USER -c "date +'%s' > ~/.session-started"
+
+# zero means proceed with login, anything else will cancel the session
+exit 0