[apt.git] / cmdline / apt-key.in

#!/bin/sh

set -e
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 '${TRUSTDBDIR}';"
trap "${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='&keyring-master-filename;'
eval $(apt-config shell MASTER_KEYRING APT::Key::MasterKeyring)
ARCHIVE_KEYRING='&keyring-filename;'
eval $(apt-config shell ARCHIVE_KEYRING APT::Key::ArchiveKeyring)
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

requires_root() {
	if [ "$(id -u)" -ne 0 ]; then
		echo >&1 "ERROR: This command can only be used by root."
		exit 1
	fi
}

# gpg defaults to mode 0600 for new keyrings. Create one with 0644 instead.
init_keyring() {
    for path; do
        if ! [ -e "$path" ]; then
            touch -- "$path"
            chmod 0644 -- "$path"
        fi
    done
}

add_keys_with_verify_against_master_keyring() {
    ADD_KEYRING=$1
    MASTER=$2

    if [ ! -f "$ADD_KEYRING" ]; then
	echo "ERROR: '$ADD_KEYRING' not found"
	return
    fi 
    if [ ! -f "$MASTER" ]; then
	echo "ERROR: '$MASTER' not found"
	return
    fi

    # when adding new keys, make sure that the archive-master-keyring
    # is honored. so:
    #   all keys that are exported must have a valid signature
    #   from a key in the $distro-master-keyring
    add_keys=`$GPG_CMD --keyring $ADD_KEYRING --with-colons --list-keys | grep ^pub | cut -d: -f5`
    all_add_keys=`$GPG_CMD --keyring $ADD_KEYRING --with-colons --list-keys | grep ^[ps]ub | cut -d: -f5`
    master_keys=`$GPG_CMD --keyring $MASTER --with-colons --list-keys | grep ^pub | cut -d: -f5`

    # ensure there are no colisions LP: #857472
    for all_add_key in $all_add_keys; do
	for master_key in $master_keys; do
            if [ "$all_add_key" = "$master_key" ]; then
                echo >&2 "Keyid collision for '$all_add_key' detected, operation aborted"
                return 1
            fi
        done
    done
    
    for add_key in $add_keys; do
        # export the add keyring one-by-one
        rm -f $TMP_KEYRING
        $GPG_CMD --keyring $ADD_KEYRING --output $TMP_KEYRING --export $add_key 
        # check if signed with the master key and only add in this case
        ADDED=0
	for master_key in $master_keys; do
	    if $GPG_CMD --keyring $MASTER --keyring $TMP_KEYRING --check-sigs --with-colons $add_key | grep '^sig:!:' | cut -d: -f5 | grep -q $master_key; then
		$GPG --import $TMP_KEYRING
		ADDED=1
	    fi
	done
	if [ $ADDED = 0 ]; then
	    echo >&2 "Key '$add_key' not added. It is not signed with a master key"
	fi
    done
    rm -f $TMP_KEYRING
}

# update the current archive signing keyring from a network URI
# the archive-keyring keys needs to be signed with the master key
# (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

    if [ -z "$ARCHIVE_KEYRING_URI" ]; then
	echo >&2 "ERROR: Your distribution is not supported in net-update as no uri for the archive-keyring is set"
	exit 1
    fi
    requires_root
    # in theory we would need to depend on wget for this, but this feature
    # isn't useable in debian anyway as we have no keyring uri nor a master key
    if ! which wget >/dev/null 2>&1; then
	echo >&2 "ERROR: an installed wget is required for a network-based update"
	exit 1
    fi
    if [ ! -d /var/lib/apt/keyrings ]; then
	mkdir -p /var/lib/apt/keyrings
    fi
    keyring=/var/lib/apt/keyrings/$(basename $ARCHIVE_KEYRING)
    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)
    if [ ! -e $keyring ]; then
	return
    fi
    new_mtime=$(stat -c %Y $keyring)
    if [ $new_mtime -ne $old_mtime ]; then
	echo "Checking for new archive signing keys now"
	add_keys_with_verify_against_master_keyring $keyring $MASTER_KEYRING
    fi
}

update() {
    if [ ! -f $ARCHIVE_KEYRING ]; then
	echo >&2 "ERROR: Can't find the archive-keyring"
	echo >&2 "Is the &keyring-package; package installed?"
	exit 1
    fi
    requires_root

    # add new keys from the package;

    # we do not use add_keys_with_verify_against_master_keyring here,
    # because "update" is run on regular package updates.  A
    # attacker might as well replace the master-archive-keyring file
    # in the package and add his own keys. so this check wouldn't
    # add any security. we *need* this check on net-update though
    $GPG_CMD --quiet --batch --keyring $ARCHIVE_KEYRING --export | $GPG --import

    if [ -r "$REMOVED_KEYS" ]; then
	# remove no-longer supported/used keys
	keys=`$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
    else
	echo "Warning: removed keys keyring  $REMOVED_KEYS missing or not readable" >&2
    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]"
    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 export <keyid>      - output the key <keyid>"
    echo "  apt-key exportall           - output all trusted keys"
    echo "  apt-key update              - update keys using the keyring package"
    echo "  apt-key net-update          - update keys using the network"
    echo "  apt-key list                - list keys"
    echo "  apt-key finger              - list fingerprints"
    echo "  apt-key adv                 - pass advanced options to gpg (download key)"
    echo
    echo "If no specific keyring file is given the command applies to all keyring files."
}

while [ -n "$1" ]; do
   case "$1" in
      --keyring)
	 shift
	 TRUSTEDFILE="$1"
	 FORCED_KEYRING="$1"
	 if [ -r "$TRUSTEDFILE" ] || [ "$2" = 'add' ] || [ "$2" = 'adv' ]; then
	    GPG="$GPG --keyring $TRUSTEDFILE --primary-keyring $TRUSTEDFILE"
	 else
	    echo >&2 "Error: The specified keyring »$TRUSTEDFILE« is missing or not readable"
	    exit 1
	 fi
	 shift
	 ;;
      --fakeroot)
	 requires_root() { true; }
	 shift
	 ;;
      --*)
	 echo >&2 "Unknown option: $1"
	 usage
	 exit 1;;
      *)
	 break;;
   esac
done

if [ -z "$TRUSTEDFILE" ]; then
   TRUSTEDFILE="/etc/apt/trusted.gpg"
   eval $(apt-config shell TRUSTEDFILE Apt::GPGV::TrustedKeyring)
   eval $(apt-config shell TRUSTEDFILE Dir::Etc::Trusted/f)
   if [ -r "$TRUSTEDFILE" ]; then
      GPG="$GPG --keyring $TRUSTEDFILE"
   fi
   GPG="$GPG --primary-keyring $TRUSTEDFILE"
   TRUSTEDPARTS="/etc/apt/trusted.gpg.d"
   eval $(apt-config shell TRUSTEDPARTS Dir::Etc::TrustedParts/d)
   if [ -d "$TRUSTEDPARTS" ]; then
      # 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
fi

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 "$command" in
    add)
        requires_root
        init_keyring "$TRUSTEDFILE"
        $GPG --quiet --batch --import "$1"
        echo "OK"
        ;;
    del|rm|remove)
        init_keyring "$TRUSTEDFILE"
	remove_key "$1"
        ;;
    update)
        init_keyring "$TRUSTEDFILE"
	update
	;;
    net-update)
        init_keyring "$TRUSTEDFILE"
	net_update
	;;
    list)
        init_keyring "$TRUSTEDFILE"
        $GPG --batch --list-keys
        ;;
    finger*)
        init_keyring "$TRUSTEDFILE"
        $GPG --batch --fingerprint
        ;;
    export)
        init_keyring "$TRUSTEDFILE"
        $GPG --armor --export "$1"
        ;;
    exportall)
        init_keyring "$TRUSTEDFILE"
        $GPG --armor --export
        ;;
    adv*)
        init_keyring "$TRUSTEDFILE"
        echo "Executing: $GPG $*"
        $GPG $*
        ;;
    help)
        usage
        ;;
    *)
        usage
        exit 1
        ;;
esac
Commit	Line	Data
b3d44315 MV	1	#!/bin/sh
	2
	3	set -e
dac074b0	4	unset GREP_OPTIONS
b3d44315	5
f9e64e7b	6	GPG_CMD="gpg --ignore-time-conflict --no-options --no-default-keyring"
248ec5ab	7
f9e64e7b DK	8	# gpg needs a trustdb to function, but it can't be invalid (not even empty)
	9	# so we create a temporary directory to store our fresh readable trustdb in
	10	TRUSTDBDIR="$(mktemp -d)"
	11	CURRENTTRAP="${CURRENTTRAP} rm -rf '${TRUSTDBDIR}';"
	12	trap "${CURRENTTRAP}" 0 HUP INT QUIT ILL ABRT FPE SEGV PIPE TERM
	13	chmod 700 "$TRUSTDBDIR"
	14	# We also don't use a secret keyring, of course, but gpg panics and
	15	# implodes if there isn't one available - and writeable for imports
	16	SECRETKEYRING="${TRUSTDBDIR}/secring.gpg"
	17	touch $SECRETKEYRING
	18	GPG_CMD="$GPG_CMD --secret-keyring $SECRETKEYRING"
c0a01322	19	GPG_CMD="$GPG_CMD --trustdb-name ${TRUSTDBDIR}/trustdb.gpg"
f9e64e7b DK	20
	21	# now create the trustdb with an (empty) dummy keyring
	22	$GPG_CMD --quiet --check-trustdb --keyring $SECRETKEYRING
	23	# and make sure that gpg isn't trying to update the file
	24	GPG_CMD="$GPG_CMD --no-auto-check-trustdb --trust-model always"
	25
46e39c8e	26	GPG="$GPG_CMD"
4a242c5b	27
5b2c6ddc	28	MASTER_KEYRING='&keyring-master-filename;'
80f3aeb0	29	eval $(apt-config shell MASTER_KEYRING APT::Key::MasterKeyring)
5b2c6ddc	30	ARCHIVE_KEYRING='&keyring-filename;'
80f3aeb0	31	eval $(apt-config shell ARCHIVE_KEYRING APT::Key::ArchiveKeyring)
5b2c6ddc	32	REMOVED_KEYS='&keyring-removed-filename;'
80f3aeb0	33	eval $(apt-config shell REMOVED_KEYS APT::Key::RemovedKeys)
5b2c6ddc	34	ARCHIVE_KEYRING_URI='&keyring-uri;'
f87338d2 DK	35	eval $(apt-config shell ARCHIVE_KEYRING_URI APT::Key::ArchiveKeyringURI)
f87338d2 DK	36	TMP_KEYRING=/var/lib/apt/keyrings/maybe-import-keyring.gpg
4a242c5b	37
00c6e1a3 MV	38	requires_root() {
	39	if [ "$(id -u)" -ne 0 ]; then
	40	echo >&1 "ERROR: This command can only be used by root."
	41	exit 1
	42	fi
	43	}
	44
5de34668 JK	45	# gpg defaults to mode 0600 for new keyrings. Create one with 0644 instead.
	46	init_keyring() {
	47	for path; do
	48	if ! [ -e "$path" ]; then
	49	touch -- "$path"
	50	chmod 0644 -- "$path"
	51	fi
	52	done
	53	}
	54
7fbe42c0	55	add_keys_with_verify_against_master_keyring() {
8c56b1e0 MV	56	ADD_KEYRING=$1
8c56b1e0 MV	57	MASTER=$2
f87338d2	58
8c56b1e0 MV	59	if [ ! -f "$ADD_KEYRING" ]; then
	60	echo "ERROR: '$ADD_KEYRING' not found"
	61	return
	62	fi
	63	if [ ! -f "$MASTER" ]; then
	64	echo "ERROR: '$MASTER' not found"
	65	return
	66	fi
	67
	68	# when adding new keys, make sure that the archive-master-keyring
	69	# is honored. so:
3a341a1d MV	70	# all keys that are exported must have a valid signature
3a341a1d MV	71	# from a key in the $distro-master-keyring
8c56b1e0	72	add_keys=`$GPG_CMD --keyring $ADD_KEYRING --with-colons --list-keys \| grep ^pub \| cut -d: -f5`
f87338d2	73	all_add_keys=`$GPG_CMD --keyring $ADD_KEYRING --with-colons --list-keys \| grep ^[ps]ub \| cut -d: -f5`
8c56b1e0	74	master_keys=`$GPG_CMD --keyring $MASTER --with-colons --list-keys \| grep ^pub \| cut -d: -f5`
f87338d2 DK	75
	76	# ensure there are no colisions LP: #857472
	77	for all_add_key in $all_add_keys; do
	78	for master_key in $master_keys; do
	79	if [ "$all_add_key" = "$master_key" ]; then
	80	echo >&2 "Keyid collision for '$all_add_key' detected, operation aborted"
	81	return 1
	82	fi
	83	done
	84	done
	85
8c56b1e0	86	for add_key in $add_keys; do
f87338d2 DK	87	# export the add keyring one-by-one
	88	rm -f $TMP_KEYRING
	89	$GPG_CMD --keyring $ADD_KEYRING --output $TMP_KEYRING --export $add_key
	90	# check if signed with the master key and only add in this case
	91	ADDED=0
8c56b1e0	92	for master_key in $master_keys; do
f87338d2 DK	93	if $GPG_CMD --keyring $MASTER --keyring $TMP_KEYRING --check-sigs --with-colons $add_key \| grep '^sig:!:' \| cut -d: -f5 \| grep -q $master_key; then
f87338d2 DK	94	$GPG --import $TMP_KEYRING
c9bb37c7	95	ADDED=1
8c56b1e0	96	fi
7fbe42c0	97	done
c9bb37c7 MV	98	if [ $ADDED = 0 ]; then
	99	echo >&2 "Key '$add_key' not added. It is not signed with a master key"
	100	fi
8c56b1e0	101	done
f87338d2	102	rm -f $TMP_KEYRING
7fbe42c0	103	}
4a242c5b	104
848ecfa4 MV	105	# update the current archive signing keyring from a network URI
	106	# the archive-keyring keys needs to be signed with the master key
	107	# (otherwise it does not make sense from a security POV)
	108	net_update() {
f87338d2 DK	109	# Disabled for now as code is insecure (LP: #1013639 (and 857472, 1013128))
	110	exit 1
	111
848ecfa4	112	if [ -z "$ARCHIVE_KEYRING_URI" ]; then
00c6e1a3	113	echo >&2 "ERROR: Your distribution is not supported in net-update as no uri for the archive-keyring is set"
46e39c8e MV	114	exit 1
46e39c8e MV	115	fi
00c6e1a3	116	requires_root
46e39c8e MV	117	# in theory we would need to depend on wget for this, but this feature
	118	# isn't useable in debian anyway as we have no keyring uri nor a master key
	119	if ! which wget >/dev/null 2>&1; then
00c6e1a3	120	echo >&2 "ERROR: an installed wget is required for a network-based update"
46e39c8e	121	exit 1
848ecfa4 MV	122	fi
	123	if [ ! -d /var/lib/apt/keyrings ]; then
	124	mkdir -p /var/lib/apt/keyrings
	125	fi
20ba2505	126	keyring=/var/lib/apt/keyrings/$(basename $ARCHIVE_KEYRING)
93886541 MV	127	old_mtime=0
93886541 MV	128	if [ -e $keyring ]; then
20ba2505	129	old_mtime=$(stat -c %Y $keyring)
93886541	130	fi
f87338d2	131	(cd /var/lib/apt/keyrings; wget --timeout=90 -q -N $ARCHIVE_KEYRING_URI)
93886541 MV	132	if [ ! -e $keyring ]; then
	133	return
	134	fi
20ba2505	135	new_mtime=$(stat -c %Y $keyring)
93886541	136	if [ $new_mtime -ne $old_mtime ]; then
8dd0686e	137	echo "Checking for new archive signing keys now"
93886541 MV	138	add_keys_with_verify_against_master_keyring $keyring $MASTER_KEYRING
93886541 MV	139	fi
848ecfa4 MV	140	}
848ecfa4 MV	141
4a242c5b MV	142	update() {
	143	if [ ! -f $ARCHIVE_KEYRING ]; then
	144	echo >&2 "ERROR: Can't find the archive-keyring"
5b2c6ddc	145	echo >&2 "Is the &keyring-package; package installed?"
4a242c5b MV	146	exit 1
4a242c5b MV	147	fi
00c6e1a3	148	requires_root
4a242c5b	149
3a341a1d MV	150	# add new keys from the package;
	151
	152	# we do not use add_keys_with_verify_against_master_keyring here,
1171258a	153	# because "update" is run on regular package updates. A
3a341a1d MV	154	# attacker might as well replace the master-archive-keyring file
	155	# in the package and add his own keys. so this check wouldn't
	156	# add any security. we need this check on net-update though
	157	$GPG_CMD --quiet --batch --keyring $ARCHIVE_KEYRING --export \| $GPG --import
4a242c5b	158
364af2ef MV	159	if [ -r "$REMOVED_KEYS" ]; then
	160	# remove no-longer supported/used keys
	161	keys=`$GPG_CMD --keyring $REMOVED_KEYS --with-colons --list-keys \| grep ^pub \| cut -d: -f5`
	162	for key in $keys; do
	163	if $GPG --list-keys --with-colons \| grep ^pub \| cut -d: -f5 \| grep -q $key; then
	164	$GPG --quiet --batch --delete-key --yes ${key}
	165	fi
	166	done
	167	else
	168	echo "Warning: removed keys keyring $REMOVED_KEYS missing or not readable" >&2
	169	fi
4a242c5b MV	170	}
4a242c5b MV	171
04937adc DK	172	remove_key_from_keyring() {
	173	local GPG="$GPG_CMD --keyring $1"
	174	# check if the key is in this keyring: the key id is in the 5 column at the end
	175	if ! $GPG --with-colons --list-keys 2>&1 \| grep -q "^pub:[^:]:[^:]:[^:]*:[0-9A-F]\+$2:"; then
	176	return
	177	fi
	178	if [ ! -w "$1" ]; then
	179	echo >&2 "Key ${2} is in keyring ${1}, but can't be removed as it is read only."
	180	return
	181	fi
	182	# check if it is the only key in the keyring and if so remove the keyring alltogether
	183	if [ '1' = "$($GPG --with-colons --list-keys \| grep "^pub:[^:]:[^:]:[^:]*:[0-9A-F]\+:" \| wc -l)" ]; then
	184	mv -f "$1" "${1}~" # behave like gpg
	185	return
	186	fi
	187	# we can't just modify pointed to files as these might be in /usr or something
	188	local REALTARGET
	189	if [ -L "$1" ]; then
	190	REALTARGET="$(readlink -f "$1")"
	191	mv -f "$1" "${1}.dpkg-tmp"
	192	cp -a "$REALTARGET" "$1"
	193	ls "$(dirname $1)"
	194	fi
	195	# delete the key from the keyring
	196	$GPG --batch --delete-key --yes "$2"
	197	if [ -n "$REALTARGET" ]; then
	198	# the real backup is the old link, not the copy we made
	199	mv -f "${1}.dpkg-tmp" "${1}~"
	200	fi
	201	}
	202
	203	remove_key() {
	204	requires_root
	205
	206	# if a --keyring was given, just remove from there
	207	if [ -n "$FORCED_KEYRING" ]; then
	208	remove_key_from_keyring "$FORCED_KEYRING" "$1"
	209	else
	210	# otherwise all known keyrings are up for inspection
	211	local TRUSTEDFILE="/etc/apt/trusted.gpg"
	212	eval $(apt-config shell TRUSTEDFILE Apt::GPGV::TrustedKeyring)
	213	eval $(apt-config shell TRUSTEDFILE Dir::Etc::Trusted/f)
	214	remove_key_from_keyring "$TRUSTEDFILE" "$1"
	215	TRUSTEDPARTS="/etc/apt/trusted.gpg.d"
	216	eval $(apt-config shell TRUSTEDPARTS Dir::Etc::TrustedParts/d)
	217	if [ -d "$TRUSTEDPARTS" ]; then
	218	for trusted in $(run-parts --list "$TRUSTEDPARTS" --regex '^.*\.gpg$'); do
	219	remove_key_from_keyring "$trusted" "$1"
	220	done
	221	fi
	222	fi
	223	echo "OK"
	224	}
	225
7fbe42c0	226
b3d44315	227	usage() {
46e39c8e	228	echo "Usage: apt-key [--keyring file] [command] [arguments]"
b3d44315 MV	229	echo
	230	echo "Manage apt's list of trusted keys"
	231	echo
	232	echo " apt-key add <file> - add the key contained in <file> ('-' for stdin)"
	233	echo " apt-key del <keyid> - remove the key <keyid>"
bf6d5b42 OS	234	echo " apt-key export <keyid> - output the key <keyid>"
bf6d5b42 OS	235	echo " apt-key exportall - output all trusted keys"
4a242c5b	236	echo " apt-key update - update keys using the keyring package"
848ecfa4	237	echo " apt-key net-update - update keys using the network"
b3d44315	238	echo " apt-key list - list keys"
a8cabc8f LB	239	echo " apt-key finger - list fingerprints"
a8cabc8f LB	240	echo " apt-key adv - pass advanced options to gpg (download key)"
b3d44315	241	echo
46e39c8e	242	echo "If no specific keyring file is given the command applies to all keyring files."
b3d44315 MV	243	}
b3d44315 MV	244
3dc55197 DK	245	while [ -n "$1" ]; do
	246	case "$1" in
	247	--keyring)
	248	shift
	249	TRUSTEDFILE="$1"
04937adc	250	FORCED_KEYRING="$1"
3dc55197 DK	251	if [ -r "$TRUSTEDFILE" ] \|\| [ "$2" = 'add' ] \|\| [ "$2" = 'adv' ]; then
	252	GPG="$GPG --keyring $TRUSTEDFILE --primary-keyring $TRUSTEDFILE"
	253	else
	254	echo >&2 "Error: The specified keyring »$TRUSTEDFILE« is missing or not readable"
	255	exit 1
	256	fi
	257	shift
	258	;;
	259	--fakeroot)
	260	requires_root() { true; }
	261	shift
	262	;;
	263	--*)
	264	echo >&2 "Unknown option: $1"
	265	usage
	266	exit 1;;
	267	*)
	268	break;;
	269	esac
	270	done
	271
	272	if [ -z "$TRUSTEDFILE" ]; then
	273	TRUSTEDFILE="/etc/apt/trusted.gpg"
	274	eval $(apt-config shell TRUSTEDFILE Apt::GPGV::TrustedKeyring)
	275	eval $(apt-config shell TRUSTEDFILE Dir::Etc::Trusted/f)
	276	if [ -r "$TRUSTEDFILE" ]; then
	277	GPG="$GPG --keyring $TRUSTEDFILE"
	278	fi
	279	GPG="$GPG --primary-keyring $TRUSTEDFILE"
	280	TRUSTEDPARTS="/etc/apt/trusted.gpg.d"
	281	eval $(apt-config shell TRUSTEDPARTS Dir::Etc::TrustedParts/d)
	282	if [ -d "$TRUSTEDPARTS" ]; then
59f46f3a DK	283	# strip / suffix as gpg will double-slash in that case (#665411)
	284	STRIPPED_TRUSTEDPARTS="${TRUSTEDPARTS%/}"
	285	if [ "${STRIPPED_TRUSTEDPARTS}/" = "$TRUSTEDPARTS" ]; then
	286	TRUSTEDPARTS="$STRIPPED_TRUSTEDPARTS"
	287	fi
	288	for trusted in $(run-parts --list "$TRUSTEDPARTS" --regex '^.*\.gpg$'); do
3dc55197 DK	289	GPG="$GPG --keyring $trusted"
	290	done
	291	fi
46e39c8e	292	fi
46e39c8e	293
b3d44315 MV	294	command="$1"
	295	if [ -z "$command" ]; then
	296	usage
	297	exit 1
	298	fi
	299	shift
	300
	301	if [ "$command" != "help" ] && ! which gpg >/dev/null 2>&1; then
	302	echo >&2 "Warning: gnupg does not seem to be installed."
	303	echo >&2 "Warning: apt-key requires gnupg for most operations."
	304	echo >&2
	305	fi
	306
b3d44315 MV	307	case "$command" in
b3d44315 MV	308	add)
00c6e1a3	309	requires_root
5de34668	310	init_keyring "$TRUSTEDFILE"
b3d44315 MV	311	$GPG --quiet --batch --import "$1"
	312	echo "OK"
	313	;;
	314	del\|rm\|remove)
5de34668	315	init_keyring "$TRUSTEDFILE"
04937adc	316	remove_key "$1"
b3d44315	317	;;
4a242c5b	318	update)
5de34668	319	init_keyring "$TRUSTEDFILE"
4a242c5b MV	320	update
4a242c5b MV	321	;;
848ecfa4	322	net-update)
5de34668	323	init_keyring "$TRUSTEDFILE"
848ecfa4 MV	324	net_update
848ecfa4 MV	325	;;
b3d44315	326	list)
5de34668	327	init_keyring "$TRUSTEDFILE"
b3d44315 MV	328	$GPG --batch --list-keys
	329	;;
	330	finger*)
5de34668	331	init_keyring "$TRUSTEDFILE"
b3d44315 MV	332	$GPG --batch --fingerprint
b3d44315 MV	333	;;
bf6d5b42	334	export)
5de34668	335	init_keyring "$TRUSTEDFILE"
bf6d5b42 OS	336	$GPG --armor --export "$1"
	337	;;
	338	exportall)
5de34668	339	init_keyring "$TRUSTEDFILE"
bf6d5b42 OS	340	$GPG --armor --export
bf6d5b42 OS	341	;;
b3d44315	342	adv*)
5de34668	343	init_keyring "$TRUSTEDFILE"
b3d44315 MV	344	echo "Executing: $GPG $*"
	345	$GPG $*
	346	;;
	347	help)
	348	usage
	349	;;
	350	*)
	351	usage
	352	exit 1
	353	;;
	354	esac