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#!/bin/sh
# Copyright (C) 2013-2016 Sören Tempel
# Copyright (C) 2016, 2017 Klemens Nanni <kl3@posteo.org>
#
# 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 3 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, see <http://www.gnu.org/licenses/>.
set -eu
umask u=rwx,go=
## Variables
GPG_OPTS='--quiet --yes --batch'
STORE_DIR="${PASSWORD_STORE_DIR:-${HOME}/.spm}"
## Helper
usage() {
cat 1>&2 <<-EOF
${1:+Error: ${1}}
USAGE: ${0##*/} add|del|list [-g]|search|show|help [[group/]entry|expression]
See spm(1) for more information.
EOF
exit ${1:+1}
}
check() {
[ -n "${entry}" ] || usage 'no such entry'
[ $(printf '%s' "${entry}" | wc -l) -eq 0 ] ||
usage 'ambigious expression'
}
gpg() {
if [ -z "${PASSWORD_STORE_KEY}" ]; then
gpg2 ${GPG_OPTS} --default-recipient-self "${@}"
else
gpg2 ${GPG_OPTS} --recipient "${PASSWORD_STORE_KEY}" "${@}"
fi
}
readpw() {
[ -t 0 ] && stty -echo && printf '%s' "${1}"
IFS= read -r "${2}"
[ -t 0 ] && stty echo
[ -z "${2}" ] && usage 'empty password'
}
find() {
command find "${STORE_DIR}" -type f -o -type l | grep -ie "${1}"
}
munge() {
abspath="$(readlink -f "${STORE_DIR}"/"${1}")"
case "${abspath}" in
"${STORE_DIR}"*)
eval ${2}=\"${abspath#${STORE_DIR}}\"
;;
*)
usage 'bad traversal'
esac
}
view() {
less -EiKRX
}
## Commands
add() {
[ -e "${STORE_DIR}"/"${1}" ] && usage 'entry already exists'
password=
readpw "Password for '${1}': " password
[ -t 0 ] && printf '\n'
group="${1%/*}"
[ "${group}" = "${1}" ] && group=
mkdir -p "${STORE_DIR}"/"${group}" &&
printf '%s\n' "${password}" |
gpg --encrypt --output "${STORE_DIR}"/"${1}"
}
list() {
[ -d "${STORE_DIR}"/"${1:-}" ] || usage 'no such group'
tree ${gflag:+-d} -Fx -- "${STORE_DIR}"/"${1:-}" | view
}
del() {
entry=$(find "${1}" | head -n2)
check; command rm -i "${entry}" && printf '\n'
}
search() {
find "${1}" | view
}
show() {
entry=$(find "${1}" | head -n2)
check; gpg --decrypt "${entry}"
}
## Parse input
[ ${#} -eq 0 ] || [ ${#} -gt 3 ] ||
[ ${#} -eq 3 ] && [ "${1:-}" != list ] &&
usage 'wrong number of arguments'
case "${1}" in
add|del|search|show)
[ -z "${2:-}" ] && usage 'empty name'
${1} "${2}"
;;
list)
[ "${2:-}" = -g ] && gflag=1 && shift 1
[ ${#} -gt 2 ] && usage 'too many arguments'
[ -n "${2:-}" ] && munge "${2}" relpath
list "${relpath:-}"
;;
help)
usage
;;
*)
usage 'invalid command'
;;
esac