lib/lib.sh: Sanitize the tag when making a temporary directory.

[distorted-letsencrypt] / lib / lib.sh

### -*-sh-*-

prog=${0##*/}

usage () { echo "usage: $prog$usage"; }
fail () { echo >&2 "$prog: $*"; exit 1; }
fail_usage () { usage >&2; exit 1; }

run_as_user () {
  case $(id -un) in
    $user) ;;
    *) exec sudo -u$user "$0" "$@" ;;
  esac
  HOME=$home; export HOME
  PATH=$home/bin:/usr/local/bin:/bin:/usr/bin; export PATH
}

sanitize () { echo "$1" | tr -c 'A-Za-z0-9-\n' _; }

prepare_tmp () {
  tag=$1

  tmp=$home/tmp/$(sanitize "$tag").$$
  rm -rf $tmp
  mkdir $tmp
  trap 'cd $home; rm -rf $tmp' EXIT INT TERM
}

make_le_conf () {
  { cat $home/le.conf.skel
    echo "config-dir = $home/etc"
    echo "logs-dir = $home/log"
    echo "work-dir = $tmp"
    echo
    case $# in
      0) ;;
      *)
	map="webroot-map = {" sep=" "
	for san in "$@"; do
	  map="$map$sep\"$san\": \"$home/webroot\"" sep=", "
	done
	map="$map }"
	echo "$map"
	;;
    esac
  } >$tmp/le.conf
}