allow to specify fingerprints in 'apt-key del'

cmdline/apt-key.in

@@ -25,6 +25,19 @@ requires_root() {
 	fi
 }
 
+get_fingerprints_of_keyring() {
+    $GPG_CMD --keyring "$1" --with-colons --fingerprint | while read publine; do
+	# search for a public key
+	if [ "${publine%%:*}" != 'pub' ]; then continue; fi
+	# search for the associated fingerprint (should be the very next line)
+	while read fprline; do
+	   if [ "${fprline%%:*}" = 'sub' ]; then break; # should never happen
+	   elif [ "${fprline%%:*}" != 'fpr' ]; then continue; fi
+	   echo "$fprline" | cut -d':' -f 10
+	done
+    done
+}
+
 add_keys_with_verify_against_master_keyring() {
     ADD_KEYRING=$1
     MASTER=$2
@@ -42,7 +55,7 @@ add_keys_with_verify_against_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 $ADD_KEYRING --with-colons --list-keys | grep ^pub | cut -d: -f5`
+    add_keys="$(get_fingerprints_of_keyring "$ADD_KEYRING")"
     all_add_keys=`$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`
 
@@ -133,7 +146,7 @@ update() {
 
     if [ -r "$REMOVED_KEYS" ]; then
 	# remove no-longer supported/used keys
-	$GPG_CMD --keyring $REMOVED_KEYS --with-colons --list-keys | grep ^pub | cut -d: -f5 | while read key; do
+	get_fingerprints_of_keyring "$REMOVED_KEYS" | while read key; do
 	    foreach_keyring_do 'remove_key_from_keyring' "$key"
 	done
     else
@@ -154,7 +167,7 @@ remove_key_from_keyring() {
        local KEY="$1"
        shift
 	# check if the key is in this keyring: the key id is in the 5 column at the end
-	if ! $GPG --with-colons --list-keys 2>&1 | grep -q "^pub:[^:]*:[^:]*:[^:]*:[0-9A-F]*${KEY}:"; then
+	if ! get_fingerprints_of_keyring "$KEYRINGFILE" | grep -q "^[0-9A-F]*${KEY}$"; then
 	    continue
 	fi
 	if [ ! -w "$KEYRINGFILE" ]; then
@@ -162,7 +175,7 @@ remove_key_from_keyring() {
 	    continue
 	fi
 	# check if it is the only key in the keyring and if so remove the keyring altogether
-	if [ '1' = "$($GPG --with-colons --list-keys | grep "^pub:[^:]*:[^:]*:[^:]*:[0-9A-F]\+:" | wc -l)" ]; then
+	if [ '1' = "$(get_fingerprints_of_keyring "$KEYRINGFILE" | wc -l)" ]; then
 	    mv -f "$KEYRINGFILE" "${KEYRINGFILE}~" # behave like gpg
 	    return
 	fi

test/integration/test-apt-key

@@ -72,6 +72,14 @@ pub   2048R/DBAC8DAE 2010-08-18'
 	testsuccess test ! -e rootdir/etc/apt/trusted.gpg.d/joesixpack.gpg
 	testsuccess cmp keys/joesixpack.pub rootdir/etc/apt/trusted.gpg.d/joesixpack.gpg~
 
+	msgtest 'Test key removal with' 'fingerprint'
+	cleanplate
+	cp -a keys/joesixpack.pub rootdir/etc/apt/trusted.gpg.d/joesixpack.gpg
+	testsuccess --nomsg aptkey --fakeroot del 34A8E9D18DB320F367E8EAA05A90D141DBAC8DAE
+	testempty aptkey list
+	testsuccess test ! -e rootdir/etc/apt/trusted.gpg.d/joesixpack.gpg
+	testsuccess cmp keys/joesixpack.pub rootdir/etc/apt/trusted.gpg.d/joesixpack.gpg~
+
 	msgtest 'Test key removal with' 'single key in softlink'
 	cleanplate
 	ln -s $(readlink -f ./keys/joesixpack.pub) rootdir/etc/apt/trusted.gpg.d/joesixpack.gpg

test/integration/test-apt-key-net-update

@@ -41,7 +41,7 @@ echo 'APT::Key::Net-Update-Enabled "1";' >> ./aptconfig.conf
 
 # test against the "real" webserver
 testequal "Checking for new archive signing keys now
-Key 'E8525D47528144E2' not added. It is not signed with a master key" aptkey --fakeroot net-update
+Key 'DE66AECA9151AFA1877EC31DE8525D47528144E2' not added. It is not signed with a master key" aptkey --fakeroot net-update
 
 aptkey list | grep '^pub' > aptkey.list
 testfileequal ./aptkey.list 'pub   1024R/F68C85A3 2013-12-19