-#!/bin/zsh
+#!/bin/bash
# Filename: grml-lock
# Purpose: lock console
# Authors: grml-team (grml.org), (c) Michael Prokop <mika@grml.org>
# Bug-Reports: see http://grml.org/bugs/
# License: This file is licensed under the GPL v2.
-# Latest change: Sam Mai 27 15:12:24 CEST 2006 [mika]
################################################################################
-PN=$0
+PN="$(basename "$0")"
-if [ -r /etc/grml_version ] ; then
-else
- dialog --stdout --title "$PN" --msgbox "Warning: this system does not look like a grml-system
-it might not work as intended." 7 70
+[ -n "$USER" ] || USER=grml
+
+if [ "$1" = "-h" ] || [ "$1" = "--help" ] ; then
+ echo "${PN}: wrapper script to lock desktop
+
+This script is a wrapper to lock your desktop session
+through the physlock application.
+
+Usage: just execute $PN without any further options."
+ exit 0
fi
-welcome_screen() {
-dialog --stdout --title "$PN" --msgbox "Welcome to $PN!
+if [ -r /etc/grml/script-functions ] ; then
+ # shellcheck disable=SC1091
+ . /etc/grml/script-functions
+ check4progs physlock sudo chpasswd dialog || { echo "Sorry, necessary tools missing - can not continue. Exiting.">&2 ; exit 1 ; }
+fi
-This script will lock virtual consoles when running
-on console or lock X server when running X.
+PWD_TEXT1="Set password (hidden typing):"
+PWD_TEXT2="Retype new password:"
-Notice that you can not lock a GNU screen-session
-via this script, use the lockscreen command
-instead (default is pressing ctrl-a x inside
-GNU screen)!
+# by default use console frontend
+DIALOG='dialog'
+PWD_CMD="dialog --stdout --title $PN --passwordbox"
-Report bugs, send wishes and feedback to the grml team:
-http://www.grml.org/ - contact (at) grml.org
-" 16 65
-}
+GUI=false
+# only when using X and zenity is available use graphical frontend
+if [ -n "${DISPLAY}" ] && [ -x "$(command -v zenity)" ] ; then
+ DIALOG='zenity'
+ PWD_CMD="zenity --title $PN --entry --hide-text"
+ GUI=true
+fi
-lockcons()
-{
- vlock -a
-}
+if ! [ -r /etc/grml_version ] ; then
+ if [ "${GUI}" = true ] ; then
+ $DIALOG --no-wrap --title "$PN" --warning --text "Warning: this system does not look like a Grml (based) system,\n
+ and therefore might not work as intended."
+ else
+ $DIALOG --title "$PN" --msgbox "Warning: this system does not look like a Grml (based) system
+ and therefore might not work as intended." 7 70
+ fi
+fi
-lockx()
-{
- xlock
+lock_desktop() {
+ # be backwards compatible, see https://github.com/grml/grml/issues/87
+ if physlock --help 2>&1 | grep -q -- '-u user' ; then
+ sudo physlock -u "$USER"
+ else
+ sudo physlock
+ fi
}
-askxlock()
-{
- dialog --stdout --title "$PN" --yesno "Now lock X?" 0 0
- retval=$?
- case $retval in
- 0)
- lockx
- ;;
- esac
+is_passwd_set() {
+ if sudo grep -q "$USER:\*:" /etc/shadow ; then
+ return 1
+ else
+ return 0
+ fi
}
-askvlock()
-{
- dialog --stdout --title "$PN" --yesno "Now lock consoles?" 0 0
- retval=$?
- case $retval in
- 0)
- lockcons
- ;;
- esac
+set_passwd() {
+ if [ "${GUI}" = true ] ; then
+ PASSWD1="$($PWD_CMD --text="$PWD_TEXT1")"
+ PASSWD2="$($PWD_CMD --text="$PWD_TEXT2")"
+ else
+ PASSWD1="$($PWD_CMD "$PWD_TEXT1" 0 0)"
+ PASSWD2="$($PWD_CMD "$PWD_TEXT2" 0 0)"
+ fi
+
+ if [ -z "$PASSWD1" ] ; then
+ if [ -n "${GUI}" ] ; then
+ $DIALOG --title "$PN" --error --text "Error retrieving password. Exiting."
+ else
+ $DIALOG --title "$PN" --msgbox "Error retrieving password. Exiting." 0 0
+ fi
+ exit 1
+ fi
+
+ if [ "$PASSWD1" = "$PASSWD2" ] ; then
+ echo "$USER:$PASSWD2" | sudo chpasswd
+ else
+ if [ "${GUI}" = true ] ; then
+ $DIALOG --no-wrap --title "$PN" --error --text "Error: passwords do not match.\nExiting."
+ else
+ $DIALOG --title "$PN" --msgbox "Error: passwords do not match. Exiting." 0 0
+ fi
+ exit 1
+ fi
}
-askpwd()
-{
-dialog --stdout --title "$PN" --yesno "Set password for user $USER?" 0 0
-retval=$?
-case $retval in
- 0)
- while [ -z "$PASSWD" ] ; do
- PASSWD=$(dialog --stdout --title "$PN" --passwordbox "Set password (hidden typing):" 0 0)
- if [ -n "$PASSWD" ] ; then
- echo "$USER:$PASSWD" | sudo chpasswd
- else
- dialog --stdout --title "$PN" --msgbox "Error while setting password. Empty passwords are not accepted." 6 65
- fi
- done
- ;;
- *)
-# asklock
- ;;
-esac
+askpwd() {
+ if [ "${GUI}" = true ] ; then
+ $DIALOG --no-wrap --title="$PN" --question --cancel-label='Exit' --ok-label='Set password' --text="User $USER has no password set yet.\nWithout a password you will not be able to log in again.\nSet password for user $USER?"
+ RC=$?
+ else
+ $DIALOG --title "$PN" --no-label Exit --yes-label Continue --yesno "User $USER has no password set yet. Without a password you will not be able to log in again. Set password for user $USER?" 0 0
+ RC=$?
+ fi
+
+ if [ "$RC" = "0" ] ; then
+ set_passwd
+ else
+ exit 1
+ fi
}
-if [[ $(tty) == /dev/tty* ]] ; then
- welcome_screen
- askpwd
- askvlock
-elif [ -n "$DISPLAY" ] ; then
- welcome_screen
- askpwd
- askxlock
+if ! isgrmlcd ; then
+ lock_desktop
+else
+ if is_passwd_set || askpwd ; then
+ lock_desktop
+ else
+ exit 1
+ fi
fi
## END OF FILE #################################################################
projects / grml-scripts.git / blobdiff