Add idle-logout hook (#40)

* also use loginctl to terminate idle user sessions

Author: FreekBes

systemd/install.sh

@@ -31,6 +31,8 @@ fi
 /usr/bin/cp "$ROOT_DIR/system/codam-web-greeter-fetcher.sh" /usr/share/codam/codam-web-greeter-fetcher.sh
 /usr/bin/cp "$ROOT_DIR/system/codam-web-greeter-idler.sh" /usr/share/codam/codam-web-greeter-idler.sh
 /usr/bin/chmod 700 /usr/share/codam/codam-web-greeter-idler.sh
+/usr/bin/cp "$ROOT_DIR/system/codam-web-greeter-idler-hook.sh" /usr/share/codam/codam-web-greeter-idler-hook.sh
+/usr/bin/chmod 500 /usr/share/codam/codam-web-greeter-idler-hook.sh
 /usr/bin/cp "$ROOT_DIR/user/codam-web-greeter-init.sh" /usr/share/codam/codam-web-greeter-init.sh
 /usr/bin/cp "$ROOT_DIR/user/codam-web-greeter-cleanup.sh" /usr/share/codam/codam-web-greeter-cleanup.sh
 

systemd/system/codam-web-greeter-idler-hook.sh

@@ -0,0 +1,15 @@
+#!/bin/bash
+#
+# This script is executed after a user has been logged out due to inactivity by the codam-web-greeter-idler.sh script.
+# It receives the following arguments:
+# $1: username of the user that was logged out
+# $2: idle time in milliseconds
+# $3: time since screen was locked in milliseconds
+# $4: max idle time in milliseconds
+#
+# You can use this script to perform custom actions, such as logging, notifications, coalition system integration, etc.
+# It can be easily customized using the Ansible codam.webgreeter role.
+#
+# Example: Log the logout event to a file
+# LOGFILE="/var/log/codam-web-greeter-idle-logout.log"
+# echo "$(date): User '$1' was logged out due to inactivity (idletime: $2 ms, time_since_lock: $3 ms, max_idle_time: $4 ms)" >> "$LOGFILE"

systemd/system/codam-web-greeter-idler.sh

@@ -43,8 +43,15 @@ while IFS= read -r line; do
 	MAX_IDLE_TIME_MINUTES=$((42))
 	MAX_IDLE_TIME=$((MAX_IDLE_TIME_MINUTES * 60 * 1000))
 	if [ "$IDLE_TIME" -gt "$MAX_IDLE_TIME" ] || [ "$TIME_SINCE_LOCK" -gt "$MAX_IDLE_TIME" ]; then
-		/usr/bin/echo "Session for user $USERNAME has been idle for over 42 minutes (idletime $IDLE_TIME ms, time_since_lock $TIME_SINCE_LOCK ms), forcing logout now by restarting lightdm"
-		/usr/bin/systemctl restart lightdm
+		/usr/bin/echo "Session for user $USERNAME has been idle for over 42 minutes (idletime $IDLE_TIME ms, time_since_lock $TIME_SINCE_LOCK ms), forcing logout now"
+		/usr/bin/loginctl terminate-user "$USERNAME" && /usr/bin/systemctl restart lightdm
+		# Run the hook script
+		if [ -f "/usr/share/codam/codam-web-greeter-idler-hook.sh" ]; then
+			/usr/bin/echo "Running custom codam-web-greeter post-idle logout hook script for user $USERNAME"
+			if ! /bin/bash /usr/share/codam/codam-web-greeter-idler-hook.sh "$USERNAME" "$IDLE_TIME" "$TIME_SINCE_LOCK" "$MAX_IDLE_TIME"; then
+				/usr/bin/echo "Warning: custom codam-web-greeter post-idle logout hook script failed for user $USERNAME" >&2
+			fi
+		fi
 	else
 		/usr/bin/echo "Session for $USERNAME has been idle for $((IDLE_TIME / 1000)) seconds, screen locked for $((TIME_SINCE_LOCK / 1000)) seconds"
 	fi