* debian/apt.conf.autoremove:

[apt.git] / cmdline / apt-key

diff --git a/cmdline/apt-key b/cmdline/apt-key
index bf1a5fefb2bc97477dd4621e151812dce0a0ad1b..b39ab12e48fd0daf57ec369fdf54b2ee4b6bf386 100755 (executable)
--- a/cmdline/apt-key
+++ b/cmdline/apt-key
@@ -1,13 +1,12 @@
 #!/bin/sh
 
 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
-
 GPG_CMD="gpg --ignore-time-conflict --no-options --no-default-keyring --secret-keyring /etc/apt/secring.gpg --trustdb-name /etc/apt/trustdb.gpg"
-GPG="$GPG_CMD --keyring /etc/apt/trusted.gpg"
-
+GPG="$GPG_CMD"
 
 MASTER_KEYRING=""
 ARCHIVE_KEYRING_URI=""
@@ -55,7 +54,14 @@ add_keys_with_verify_against_master_keyring() {
 # (otherwise it does not make sense from a security POV)
 net_update() {
     if [ -z "$ARCHIVE_KEYRING_URI" ]; then
-       echo "ERROR: no location for the archive-keyring given" 
+       echo "ERROR: no location for the archive-keyring given"
+       exit 1
+    fi
+    # 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 "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
@@ -86,24 +92,28 @@ update() {
     # add new keys from the package;
 
     # we do not use add_keys_with_verify_against_master_keyring here,
-    # because we "update" is run on regular package updates.  A
+    # 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
 
-    # 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 ${key}
-       fi
-    done
+    if [ -r "$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
 }
 
 
 usage() {
-    echo "Usage: apt-key [command] [arguments]"
+    echo "Usage: apt-key [--keyring file] [command] [arguments]"
     echo
     echo "Manage apt's list of trusted keys"
     echo
@@ -114,9 +124,46 @@ usage() {
     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."
 }
 
+# Determine on which keyring we want to work
+if [ "$1" = "--keyring" ]; then
+        #echo "keyfile given"
+       shift
+       TRUSTEDFILE="$1"
+       if [ -r "$TRUSTEDFILE" ]; 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
+# otherwise use the default
+else
+       #echo "generate list"
+       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
+               #echo "parts active"
+               for trusted in $(run-parts --list $TRUSTEDPARTS --regex '^.*\.gpg$'); do
+                       #echo "part -> $trusted"
+                       GPG="$GPG --keyring $trusted"
+               done
+       fi
+fi
+#echo "COMMAND: $GPG"
+
 command="$1"
 if [ -z "$command" ]; then
     usage