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#!/bin/bash
# Copyright (C) 2019 Mike Gabriel <mike.gabriel@das-netzwerkteam.de>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
# This scripts resets a user profile (the .dot files in $HOME).
#
# Always test before really executing...
#
# Dry-Run: itzks-reset-userprofile <user>
# ... then read its output!!!
#
# Really-do: itzks-reset-userprofile <user> really-do
#
this_DATE="$(date +%Y%m%d)"
this_USER="${USER}"
if [ "x${this_USER}" = "xroot" ]; then
if [ "x${1}" != "x" ]; then
this_USER="${1}"
else
echo "ERROR: specify an existing user name for user profile reset"
exit 1
fi
else
echo "ERROR: $(basename $0) must run with super-user privileges"
exit 2
fi
if ! id "${this_USER}" 1>/dev/null 2>/dev/null; then
echo "ERROR: no such user known on this site"
exit 3
fi
this_GROUP="$(id -gn "$this_USER")"
this_HOME="$(getent passwd ${this_USER} | cut -d ":" -f6)"
# if we are root, we cannot work over a network filesystem
if ! echo "${this_HOME}" | grep -qE "/skole/$(hostname -s)/home.*"; then
echo "home directory not on this machine"
exit 4
fi
if [ -d "${this_HOME}/.profile-reset-${this_DATE}" ]; then
echo "ERROR: user profile has been reset today already, cannot do this twice on one day"
exit 5
fi
really_DO="${2}"
if [ "x$really_DO" != "xreally-do" ]; then
fake_cmd="echo -e"
echo
echo "########################################################################"
echo
fi
$fake_cmd cd ${this_HOME}
$fake_cmd mkdir .profile-reset-${this_DATE}/
$fake_cmd chown ${this_USER}:${this_GROUP} .profile-reset-${this_DATE}/
echo
echo "Backing up configuration directories to ${this_HOME}/.profile-reset-${this_DATE}"
find . -maxdepth 1 -type d | grep -E '\./\..*' | while read confdir; do
# don't back up this or older profile reset backups
if echo "${confdir}" | grep -q -E '.*/\.profile-reset-[0-9]{8}$'; then
continue
fi
# keep SSH and GnuPG configuration
if [ "x${confdir}" = "x./.ssh" ]; then
continue
fi
if [ "x${confdir}" = "x./.gnupg" ]; then
continue
fi
$fake_cmd mv -v $confdir ".profile-reset-${this_DATE}/"
done
echo
echo "Backing up configuration files to ${this_HOME}/.profile-reset-${this_DATE}"
find . -maxdepth 1 -type f | grep -E '\./\..*' | while read conffile; do
$fake_cmd mv -v $conffile .profile-reset-${this_DATE}/
done
echo
echo "Backing up special application data folders to ${this_HOME}/.profile-reset-${this_DATE}"
# FIXME: this needs to be adapted to XDG desktop folder naming
[ -d "${this_HOME}/Desktop" ] && {
$fake_cmd mkdir "${this_HOME}/.profile-reset-${this_DATE}/Desktop/"
$fake_cmd mv -v "${this_HOME}/Desktop/*.desktop" "${this_HOME}/.profile-reset-${this_DATE}/Desktop/"
}
[ -d "${this_HOME}/Schreibtisch" ] && {
$fake_cmd mkdir "${this_HOME}/.profile-reset-${this_DATE}/Schreibtisch/"
$fake_cmd mv -v "${this_HOME}/Schreibtisch" "${this_HOME}/.profile-reset-${this_DATE}/Schreibtisch/"
}
# FIXME: this is ITZkS specific, it needs to be "out-sourced"
[ -d "${this_HOME}/Netzwerkordner" ] && $fake_cmd mv -v "${this_HOME}/Netzwerkordner" "${this_HOME}/.profile-reset-${this_DATE}/"
# GrandOrgue directories
[ -d "${this_HOME}/GrandOrgue" ] && $fake_cmd mv -v "${this_HOME}/GrandOrgue" "${this_HOME}/.profile-reset-${this_DATE}/"
[ -d "${this_HOME}/GrandOrgueCache" ] && $fake_cmd mv -v "${this_HOME}/GrandOrgueCache" "${this_HOME}/.profile-reset-${this_DATE}/"
[ -d "${this_HOME}/GrandOrgueConfig" ] && $fake_cmd mv -v "${this_HOME}/GrandOrgueConfig" "${this_HOME}/.profile-reset-${this_DATE}/"
[ -d "${this_HOME}/GrandOrgueData" ] && $fake_cmd mv -v "${this_HOME}/GrandOrgueData" "${this_HOME}/.profile-reset-${this_DATE}/"
# arduino sketch book
[ -d "${this_HOME}/sketchbook" ] && $fake_cmd mv -v "${this_HOME}/sketchbook" "${this_HOME}/.profile-reset-${this_DATE}/"
echo
echo "Re-creating a fresh user profile"
$fake_cmd cp -avT "/etc/skel/" "${this_HOME}/"
echo
echo "Fixing ownership of re-created user profile"
$fake_cmd chown -Rf "${this_USER}:${this_GROUP}" "${this_HOME}/"
echo
echo "Setting 0750/0640 mask for permissions on user directory"
$fake_cmd chmod -Rf g-w,o-rwx "${this_HOME}/"
[ -d "${this_HOME}/public_html" ] && {
echo
echo "Making '${this_HOME}/public_html' accessible to the webserver"
$fake_cmd chmod o+x "${this_HOME}"
$fake_cmd chmod o+rx "${this_HOME}/public_html/"
}
echo
echo "Done"
if [ "x$really_DO" != "xreally-do" ]; then
$fake_cmd cd -
echo
echo "########################################################################"
echo
echo "NOTICE: Only showing what would happen, use"
echo
echo " $(basename $0) <user> really-do"
echo
echo " to really enforce a user profile reset."
echo
else
cd - 1>/dev/null
fi
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