set -e
unset GREP_OPTIONS
-# We don't use a secret keyring, of course, but gpg panics and
-# implodes if there isn't one available
-SECRETKEYRING="$(mktemp)"
-CURRENTTRAP="rm -f '${SECRETKEYRING}';"
-trap "${CURRENTTRAP}" 0 HUP INT QUIT ILL ABRT FPE SEGV PIPE TERM
-GPG_CMD="gpg --ignore-time-conflict --no-options --no-default-keyring --secret-keyring ${SECRETKEYRING}"
+GPG_CMD="gpg --ignore-time-conflict --no-options --no-default-keyring"
-eval $(apt-config shell TRUSTDBDIR Dir::Etc/d)
-if [ "$(id -u)" -eq 0 ] || [ -r "${TRUSTDBDIR}/trustdb.gpg" ]; then
- # root can read/create the file as needed, so use the default
- true
-else
- # gpg needs a trustdb to function, but it can't be invalid (not even empty)
- # so we create a tempory directory to store our fresh readable trustdb in
- TRUSTDBDIR="$(mktemp -d)"
- CURRENTTRAP="${CURRENTTRAP} rm -rf '${TRUSTDBDIR}';"
- trap "${CURRENTTRAP}" 0 HUP INT QUIT ILL ABRT FPE SEGV PIPE TERM
- chmod 700 "$TRUSTDBDIR"
-fi
+# gpg needs a trustdb to function, but it can't be invalid (not even empty)
+# so we create a temporary directory to store our fresh readable trustdb in
+TRUSTDBDIR="$(mktemp -d)"
+CURRENTTRAP="${CURRENTTRAP} rm -rf '${TRUSTDBDIR}';"
+trap "${CURRENTTRAP}" 0 HUP INT QUIT ILL ABRT FPE SEGV PIPE TERM
+chmod 700 "$TRUSTDBDIR"
+# We also don't use a secret keyring, of course, but gpg panics and
+# implodes if there isn't one available - and writeable for imports
+SECRETKEYRING="${TRUSTDBDIR}/secring.gpg"
+touch $SECRETKEYRING
+GPG_CMD="$GPG_CMD --secret-keyring $SECRETKEYRING"
GPG_CMD="$GPG_CMD --trustdb-name ${TRUSTDBDIR}/trustdb.gpg"
+
+# now create the trustdb with an (empty) dummy keyring
+$GPG_CMD --quiet --check-trustdb --keyring $SECRETKEYRING
+# and make sure that gpg isn't trying to update the file
+GPG_CMD="$GPG_CMD --no-auto-check-trustdb --trust-model always"
+
GPG="$GPG_CMD"
MASTER_KEYRING=""
-ARCHIVE_KEYRING_URI=""
#MASTER_KEYRING=/usr/share/keyrings/debian-master-keyring.gpg
+eval $(apt-config shell MASTER_KEYRING APT::Key::MasterKeyring)
+ARCHIVE_KEYRING_URI=""
#ARCHIVE_KEYRING_URI=http://ftp.debian.org/debian/debian-archive-keyring.gpg
+eval $(apt-config shell ARCHIVE_KEYRING_URI APT::Key::ArchiveKeyringURI)
ARCHIVE_KEYRING=/usr/share/keyrings/debian-archive-keyring.gpg
+eval $(apt-config shell ARCHIVE_KEYRING APT::Key::ArchiveKeyring)
REMOVED_KEYS=/usr/share/keyrings/debian-archive-removed-keys.gpg
+eval $(apt-config shell REMOVED_KEYS APT::Key::RemovedKeys)
requires_root() {
if [ "$(id -u)" -ne 0 ]; then
fi
}
+remove_key_from_keyring() {
+ local GPG="$GPG_CMD --keyring $1"
+ # check if the key is in this keyring: the key id is in the 5 column at the end
+ if ! $GPG --with-colons --list-keys 2>&1 | grep -q "^pub:[^:]*:[^:]*:[^:]*:[0-9A-F]\+$2:"; then
+ return
+ fi
+ if [ ! -w "$1" ]; then
+ echo >&2 "Key ${2} is in keyring ${1}, but can't be removed as it is read only."
+ return
+ fi
+ # check if it is the only key in the keyring and if so remove the keyring alltogether
+ if [ '1' = "$($GPG --with-colons --list-keys | grep "^pub:[^:]*:[^:]*:[^:]*:[0-9A-F]\+:" | wc -l)" ]; then
+ mv -f "$1" "${1}~" # behave like gpg
+ return
+ fi
+ # we can't just modify pointed to files as these might be in /usr or something
+ local REALTARGET
+ if [ -L "$1" ]; then
+ REALTARGET="$(readlink -f "$1")"
+ mv -f "$1" "${1}.dpkg-tmp"
+ cp -a "$REALTARGET" "$1"
+ ls "$(dirname $1)"
+ fi
+ # delete the key from the keyring
+ $GPG --batch --delete-key --yes "$2"
+ if [ -n "$REALTARGET" ]; then
+ # the real backup is the old link, not the copy we made
+ mv -f "${1}.dpkg-tmp" "${1}~"
+ fi
+}
+
+remove_key() {
+ requires_root
+
+ # if a --keyring was given, just remove from there
+ if [ -n "$FORCED_KEYRING" ]; then
+ remove_key_from_keyring "$FORCED_KEYRING" "$1"
+ else
+ # otherwise all known keyrings are up for inspection
+ local TRUSTEDFILE="/etc/apt/trusted.gpg"
+ eval $(apt-config shell TRUSTEDFILE Apt::GPGV::TrustedKeyring)
+ eval $(apt-config shell TRUSTEDFILE Dir::Etc::Trusted/f)
+ remove_key_from_keyring "$TRUSTEDFILE" "$1"
+ TRUSTEDPARTS="/etc/apt/trusted.gpg.d"
+ eval $(apt-config shell TRUSTEDPARTS Dir::Etc::TrustedParts/d)
+ if [ -d "$TRUSTEDPARTS" ]; then
+ for trusted in $(run-parts --list "$TRUSTEDPARTS" --regex '^.*\.gpg$'); do
+ remove_key_from_keyring "$trusted" "$1"
+ done
+ fi
+ fi
+ echo "OK"
+}
+
usage() {
echo "Usage: apt-key [--keyring file] [command] [arguments]"
--keyring)
shift
TRUSTEDFILE="$1"
+ FORCED_KEYRING="$1"
if [ -r "$TRUSTEDFILE" ] || [ "$2" = 'add' ] || [ "$2" = 'adv' ]; then
GPG="$GPG --keyring $TRUSTEDFILE --primary-keyring $TRUSTEDFILE"
else
TRUSTEDPARTS="/etc/apt/trusted.gpg.d"
eval $(apt-config shell TRUSTEDPARTS Dir::Etc::TrustedParts/d)
if [ -d "$TRUSTEDPARTS" ]; then
- for trusted in $(run-parts --list $TRUSTEDPARTS --regex '^.*\.gpg$'); do
+ # strip / suffix as gpg will double-slash in that case (#665411)
+ STRIPPED_TRUSTEDPARTS="${TRUSTEDPARTS%/}"
+ if [ "${STRIPPED_TRUSTEDPARTS}/" = "$TRUSTEDPARTS" ]; then
+ TRUSTEDPARTS="$STRIPPED_TRUSTEDPARTS"
+ fi
+ for trusted in $(run-parts --list "$TRUSTEDPARTS" --regex '^.*\.gpg$'); do
GPG="$GPG --keyring $trusted"
done
fi
echo "OK"
;;
del|rm|remove)
- requires_root
init_keyring "$TRUSTEDFILE"
- $GPG --quiet --batch --delete-key --yes "$1"
- echo "OK"
+ remove_key "$1"
;;
update)
init_keyring "$TRUSTEDFILE"
projects / apt.git / blobdiff