X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/8c9c50f94768a13359b108e2cd0da9832f9cf6ad..6f43fac607c94f423f1d01708ecf947a8a303d38:/cmdline/apt-key.in diff --git a/cmdline/apt-key.in b/cmdline/apt-key.in index 779872b4c..0ced500db 100644 --- a/cmdline/apt-key.in +++ b/cmdline/apt-key.in @@ -5,26 +5,30 @@ unset GREP_OPTIONS GPG_CMD="gpg --ignore-time-conflict --no-options --no-default-keyring" -# 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 '${TRUSTDBDIR}';" +# gpg needs (in different versions more or less) files to function correctly, +# so we give it its own homedir and generate some valid content for it +GPGHOMEDIR="$(mktemp -d)" +CURRENTTRAP="${CURRENTTRAP} rm -rf '${GPGHOMEDIR}';" 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 +chmod 700 "$GPGHOMEDIR" +# We don't use a secret keyring, of course, but gpg panics and # implodes if there isn't one available - and writeable for imports -SECRETKEYRING="${TRUSTDBDIR}/secring.gpg" +SECRETKEYRING="${GPGHOMEDIR}/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 --homedir $GPGHOMEDIR" +# create the trustdb with an (empty) dummy keyring +# older gpgs required it, newer gpgs even warn that it isn't needed, +# but require it nontheless for some commands, so we just play safe +# here for the foreseeable future and create a dummy one +$GPG_CMD --quiet --check-trustdb --keyring $SECRETKEYRING >/dev/null 2>&1 +# tell gpg that it shouldn't try to maintain a trustdb file GPG_CMD="$GPG_CMD --no-auto-check-trustdb --trust-model always" GPG="$GPG_CMD" +APT_DIR="/" +eval $(apt-config shell APT_DIR Dir) + MASTER_KEYRING='&keyring-master-filename;' eval $(apt-config shell MASTER_KEYRING APT::Key::MasterKeyring) ARCHIVE_KEYRING='&keyring-filename;' @@ -33,7 +37,7 @@ REMOVED_KEYS='&keyring-removed-filename;' eval $(apt-config shell REMOVED_KEYS APT::Key::RemovedKeys) ARCHIVE_KEYRING_URI='&keyring-uri;' eval $(apt-config shell ARCHIVE_KEYRING_URI APT::Key::ArchiveKeyringURI) -TMP_KEYRING=/var/lib/apt/keyrings/maybe-import-keyring.gpg +TMP_KEYRING=${APT_DIR}/var/lib/apt/keyrings/maybe-import-keyring.gpg requires_root() { if [ "$(id -u)" -ne 0 ]; then @@ -107,7 +111,11 @@ add_keys_with_verify_against_master_keyring() { # (otherwise it does not make sense from a security POV) net_update() { # Disabled for now as code is insecure (LP: #1013639 (and 857472, 1013128)) - exit 1 + APT_KEY_NET_UPDATE_ENABLED="" + eval $(apt-config shell APT_KEY_NET_UPDATE_ENABLED APT::Key::Net-Update-Enabled) + if [ -z "$APT_KEY_NET_UPDATE_ENABLED" ]; then + exit 1 + fi if [ -z "$ARCHIVE_KEYRING_URI" ]; then echo >&2 "ERROR: Your distribution is not supported in net-update as no uri for the archive-keyring is set" @@ -120,15 +128,15 @@ net_update() { echo >&2 "ERROR: an installed wget is required for a network-based update" exit 1 fi - if [ ! -d /var/lib/apt/keyrings ]; then - mkdir -p /var/lib/apt/keyrings + if [ ! -d ${APT_DIR}/var/lib/apt/keyrings ]; then + mkdir -p ${APT_DIR}/var/lib/apt/keyrings fi - keyring=/var/lib/apt/keyrings/$(basename $ARCHIVE_KEYRING) + keyring=${APT_DIR}/var/lib/apt/keyrings/$(basename $ARCHIVE_KEYRING_URI) old_mtime=0 if [ -e $keyring ]; then old_mtime=$(stat -c %Y $keyring) fi - (cd /var/lib/apt/keyrings; wget --timeout=90 -q -N $ARCHIVE_KEYRING_URI) + (cd ${APT_DIR}/var/lib/apt/keyrings; wget --timeout=90 -q -N $ARCHIVE_KEYRING_URI) if [ ! -e $keyring ]; then return fi