#!/bin/sh set -e # We don't use a secret keyring, of course, but gpg panics and # implodes if there isn't one available GPG_CMD="gpg --no-options --no-default-keyring --secret-keyring /etc/apt/secring.gpg --trustdb-name /etc/apt/trustdb.gpg" GPG="$GPG_CMD --keyring /etc/apt/trusted.gpg" ARCHIVE_KEYRING=/usr/share/keyrings/debian-archive-keyring.gpg REMOVED_KEYS=/usr/share/keyrings/debian-archive-removed-keys.gpg update() { if [ ! -f $ARCHIVE_KEYRING ]; then echo >&2 "ERROR: Can't find the archive-keyring" echo >&2 "Is the debian-archive-keyring package installed?" exit 1 fi # add new keys $GPG_CMD --quiet --batch --keyring $ARCHIVE_KEYRING --export | $GPG --ignore-time-conflict --import # remove no-longer used keys keys=`$GPG_CMD --keyring $REMOVED_KEYS --with-colons --list-keys | grep ^pub | cut -d: -f5` for key in $keys; do if $GPG --list-keys --with-colons | grep ^pub | cut -d: -f5 | grep -q $key; then $GPG --quiet --batch --delete-key --yes ${key} fi done } usage() { echo "Usage: apt-key [command] [arguments]" echo echo "Manage apt's list of trusted keys" echo echo " apt-key add <file> - add the key contained in <file> ('-' for stdin)" echo " apt-key del <keyid> - remove the key <keyid>" echo " apt-key update - update keys using the keyring package" echo " apt-key list - list keys" echo } command="$1" if [ -z "$command" ]; then usage exit 1 fi shift if [ "$command" != "help" ] && ! which gpg >/dev/null 2>&1; then echo >&2 "Warning: gnupg does not seem to be installed." echo >&2 "Warning: apt-key requires gnupg for most operations." echo >&2 fi case "$command" in add) $GPG --quiet --batch --import "$1" echo "OK" ;; del|rm|remove) $GPG --quiet --batch --delete-key --yes "$1" echo "OK" ;; update) update ;; list) $GPG --batch --list-keys ;; finger*) $GPG --batch --fingerprint ;; adv*) echo "Executing: $GPG $*" $GPG $* ;; help) usage ;; *) usage exit 1 ;; esac