Merge branch 'debian/sid' into debian/experimental

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

diff --git a/cmdline/apt-key.in b/cmdline/apt-key.in
index b8fdfe121b32c6692cfacb7f746bcc34abe98fc6..7a3852ee89584472382b78c1f5299dde284f5230 100644 (file)
--- a/cmdline/apt-key.in
+++ b/cmdline/apt-key.in
@@ -14,7 +14,6 @@ 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)
 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=${APT_DIR}/var/lib/apt/keyrings/maybe-import-keyring.gpg

 
 aptkey_echo() { echo "$@"; }
 
 
 aptkey_echo() { echo "$@"; }
 


@@ -25,6 +24,19 @@ requires_root() {
        fi
 }
 
        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
 add_keys_with_verify_against_master_keyring() {
     ADD_KEYRING=$1
     MASTER=$2


@@ -42,7 +54,7 @@ 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
     # 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`
 
     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`
 


@@ -55,24 +67,28 @@ add_keys_with_verify_against_master_keyring() {
             fi
         done
     done
             fi
         done
     done

-    
+

     for add_key in $add_keys; do
         # export the add keyring one-by-one
     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 $add_key 
-        # check if signed with the master key and only add in this case
-        ADDED=0
+       local TMP_KEYRING="${GPGHOMEDIR}/tmp-keyring.gpg"
+       $GPG_CMD --batch --yes --keyring "$ADD_KEYRING" --output "$TMP_KEYRING" --export "$add_key"
+       if ! $GPG_CMD --batch --yes --keyring "$TMP_KEYRING" --import "$MASTER" > "${GPGHOMEDIR}/gpgoutput.log" 2>&1; then
+           cat "${GPGHOMEDIR}/gpgoutput.log"
+           false
+       fi
+       # check if signed with the master key and only add in this case
+       ADDED=0

        for master_key in $master_keys; do
        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
+           if $GPG_CMD --keyring $TMP_KEYRING --check-sigs --with-colons $add_key | grep '^sig:!:' | cut -d: -f5 | grep -q $master_key; then
+               $GPG_CMD --batch --yes --keyring "$ADD_KEYRING" --export "$add_key" | $GPG --batch --yes --import

                ADDED=1
            fi
        done
        if [ $ADDED = 0 ]; then
            echo >&2 "Key '$add_key' not added. It is not signed with a master key"
        fi
                ADDED=1
            fi
        done
        if [ $ADDED = 0 ]; then
            echo >&2 "Key '$add_key' not added. It is not signed with a master key"
        fi

+       rm -f "${TMP_KEYRING}"

     done
     done

-    rm -f $TMP_KEYRING

 }
 
 # update the current archive signing keyring from a network URI
 }
 
 # update the current archive signing keyring from a network URI


@@ -133,7 +149,7 @@ update() {
 
     if [ -r "$REMOVED_KEYS" ]; then
        # remove no-longer supported/used keys
 
     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' "$key"
        done
     else
            foreach_keyring_do 'remove_key_from_keyring' "$key"
        done
     else


@@ -150,11 +166,9 @@ remove_key_from_keyring() {
     fi
 
     local GPG="$GPG_CMD --keyring $KEYRINGFILE"
     fi
 
     local GPG="$GPG_CMD --keyring $KEYRINGFILE"

-    while [ -n "$1" ]; do
-       local KEY="$1"
-       shift
+    for KEY in "$@"; do

        # check if the key is in this keyring: the key id is in the 5 column at the end
        # 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 "$KEYRINGFILE" ]; then
            continue
        fi
        if [ ! -w "$KEYRINGFILE" ]; then


@@ -162,7 +176,7 @@ remove_key_from_keyring() {
            continue
        fi
        # check if it is the only key in the keyring and if so remove the keyring altogether
            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
            mv -f "$KEYRINGFILE" "${KEYRINGFILE}~" # behave like gpg
            return
        fi


@@ -210,41 +224,84 @@ foreach_keyring_do() {
    fi
 }
 
    fi
 }
 

-list_keys_from_keyring() {
+run_cmd_on_keyring() {

     local KEYRINGFILE="$1"
     shift
     local KEYRINGFILE="$1"
     shift

-    # don't show the error message if this keyring doesn't include the key
-    $GPG_CMD --keyring "$KEYRINGFILE" --batch --list-keys "$@" 2>/dev/null || true
-}
-
-fingerprint_keys_from_keyring() {
-    local KEYRINGFILE="$1"
-    shift
-    # don't show the error message if this keyring doesn't include the fingerprint
-    $GPG_CMD --keyring "$KEYRINGFILE" --batch --fingerprint "$@" 2>/dev/null || true
+    # fingerprint and co will fail if key isn't in this keyring
+    $GPG_CMD --keyring "$KEYRINGFILE" --batch "$@" 2>/dev/null || true

 }
 
 import_keys_from_keyring() {
     local IMPORT="$1"
     local KEYRINGFILE="$2"
 }
 
 import_keys_from_keyring() {
     local IMPORT="$1"
     local KEYRINGFILE="$2"

-    $GPG_CMD --keyring "$KEYRINGFILE" --batch --import "$IMPORT" >/dev/null 2>&1
+    if ! $GPG_CMD --keyring "$KEYRINGFILE" --batch --import "$IMPORT" > "${GPGHOMEDIR}/gpgoutput.log" 2>&1; then
+       cat "${GPGHOMEDIR}/gpgoutput.log"
+       false
+    fi

 }
 
 }
 

-setup_merged_keyring() {
-    local TRUSTEDFILE_BAK="$TRUSTEDFILE"
-    TRUSTEDFILE='/dev/null'
-    foreach_keyring_do 'import_keys_from_keyring' "${GPGHOMEDIR}/trusted.gpg"
-    TRUSTEDFILE="$TRUSTEDFILE_BAK"
-    # mark it as non-writeable so users get errors if gnupg tries to modify it
-    if [ -s "${GPGHOMEDIR}/trusted.gpg" ]; then
-       chmod -w "${GPGHOMEDIR}/trusted.gpg"
-       GPG="$GPG --keyring ${GPGHOMEDIR}/trusted.gpg"
+merge_keys_into_keyrings() {
+    local KEYRINGFILE="$1"
+    local IMPORT="$2"
+    if ! $GPG_CMD --keyring "$KEYRINGFILE" --batch --import --import-options 'merge-only' "$IMPORT" > "${GPGHOMEDIR}/gpgoutput.log" 2>&1; then
+       cat "${GPGHOMEDIR}/gpgoutput.log"
+       false
+    fi
+}
+
+merge_back_changes() {
+    if [ -n "$FORCED_KEYRING" ]; then
+       # if the keyring was forced merge is already done
+       return

     fi
     fi

-    if [ -r "$TRUSTEDFILE" ]; then
-       GPG="$GPG --keyring $TRUSTEDFILE --primary-keyring $TRUSTEDFILE"
+    if [ -s "${GPGHOMEDIR}/pubring.gpg" ]; then
+       # merge all updated keys
+       foreach_keyring_do 'merge_keys_into_keyrings' "${GPGHOMEDIR}/pubring.gpg"

     fi
     fi

+    # look for keys which were added or removed
+    get_fingerprints_of_keyring "${GPGHOMEDIR}/pubring.orig.gpg" > "${GPGHOMEDIR}/pubring.orig.keylst"
+    get_fingerprints_of_keyring "${GPGHOMEDIR}/pubring.gpg" > "${GPGHOMEDIR}/pubring.keylst"
+    sort "${GPGHOMEDIR}/pubring.keylst" "${GPGHOMEDIR}/pubring.orig.keylst" | uniq --unique | while read key; do
+       if grep -q "^${key}$" "${GPGHOMEDIR}/pubring.orig.keylst"; then
+           # key isn't part of new keyring, so remove
+           foreach_keyring_do 'remove_key_from_keyring' "$key"
+       elif grep -q "^${key}$" "${GPGHOMEDIR}/pubring.keylst"; then
+           # key is part of new keyring, so we need to import it
+           create_new_keyring "$TRUSTEDFILE"
+           if ! $GPG --batch --yes --export "$key" | $GPG_CMD --keyring "$TRUSTEDFILE" --batch --yes --import > "${GPGHOMEDIR}/gpgoutput.log" 2>&1; then
+              cat "${GPGHOMEDIR}/gpgoutput.log"
+              false
+           fi
+       else
+           echo >&2 "Errror: Key ${key} (dis)appeared out of nowhere"
+       fi
+    done

 }
 
 }
 

+setup_merged_keyring() {
+    if [ -z "$FORCED_KEYRING" ]; then
+       foreach_keyring_do 'import_keys_from_keyring' "${GPGHOMEDIR}/pubring.gpg"
+       if [ -r "${GPGHOMEDIR}/pubring.gpg" ]; then
+           cp -a "${GPGHOMEDIR}/pubring.gpg" "${GPGHOMEDIR}/pubring.orig.gpg"
+       else
+          touch "${GPGHOMEDIR}/pubring.gpg" "${GPGHOMEDIR}/pubring.orig.gpg"
+       fi
+       GPG="$GPG --keyring ${GPGHOMEDIR}/pubring.gpg"
+    else
+       GPG="$GPG --keyring $TRUSTEDFILE"
+       create_new_keyring "$TRUSTEDFILE"
+    fi
+}
+
+create_new_keyring() {
+    # gpg defaults to mode 0600 for new keyrings. Create one with 0644 instead.
+    if ! [ -e "$TRUSTEDFILE" ]; then
+       if [ -w "$(dirname "$TRUSTEDFILE")" ]; then
+           touch -- "$TRUSTEDFILE"
+           chmod 0644 -- "$TRUSTEDFILE"
+       fi
+    fi
+}

 
 usage() {
     echo "Usage: apt-key [--keyring file] [command] [arguments]"
 
 usage() {
     echo "Usage: apt-key [--keyring file] [command] [arguments]"


@@ -270,15 +327,19 @@ while [ -n "$1" ]; do
         shift
         TRUSTEDFILE="$1"
         FORCED_KEYRING="$1"
         shift
         TRUSTEDFILE="$1"
         FORCED_KEYRING="$1"

+        ;;
+      --secret-keyring)

         shift
         shift

+        FORCED_SECRET_KEYRING="$1"
+        ;;
+      --readonly)
+        merge_back_changes() { true; }

         ;;
       --fakeroot)
         requires_root() { true; }
         ;;
       --fakeroot)
         requires_root() { true; }

-        shift

         ;;
       --quiet)
         aptkey_echo() { true; }
         ;;
       --quiet)
         aptkey_echo() { true; }

-        shift

         ;;
       --*)
         echo >&2 "Unknown option: $1"
         ;;
       --*)
         echo >&2 "Unknown option: $1"


@@ -287,6 +348,7 @@ while [ -n "$1" ]; do
       *)
         break;;
    esac
       *)
         break;;
    esac

+   shift

 done
 
 if [ -z "$TRUSTEDFILE" ]; then
 done
 
 if [ -z "$TRUSTEDFILE" ]; then


@@ -303,16 +365,28 @@ fi
 shift
 
 if [ "$command" != "help" ]; then
 shift
 
 if [ "$command" != "help" ]; then

-    if ! 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."
+    eval $(apt-config shell GPG_EXE Apt::Key::gpgcommand)
+
+    if [ -n "$GPG_EXE" ] && which "$GPG_EXE" >/dev/null 2>&1; then
+       true
+    elif which gpg >/dev/null 2>&1; then
+       GPG_EXE="gpg"
+    elif which gpg2 >/dev/null 2>&1; then
+       GPG_EXE="gpg2"
+    else
+       echo >&2 "Error: gnupg or gnupg2 do not seem to be installed,"
+       echo >&2 "Error: but apt-key requires gnupg or gnupg2 for operation."

        echo >&2
        echo >&2

+       exit 255

     fi
 
     fi
 

-    GPG_CMD="gpg --ignore-time-conflict --no-options --no-default-keyring"
+    GPG_CMD="$GPG_EXE --ignore-time-conflict --no-options --no-default-keyring"

 
     # 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
 
     # 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

+    if [ ! -d "$TMPDIR" ]; then
+        unset TMPDIR
+    fi

     GPGHOMEDIR="$(mktemp -d)"
     CURRENTTRAP="${CURRENTTRAP} rm -rf '${GPGHOMEDIR}';"
     trap "${CURRENTTRAP}" 0 HUP INT QUIT ILL ABRT FPE SEGV PIPE TERM
     GPGHOMEDIR="$(mktemp -d)"
     CURRENTTRAP="${CURRENTTRAP} rm -rf '${GPGHOMEDIR}';"
     trap "${CURRENTTRAP}" 0 HUP INT QUIT ILL ABRT FPE SEGV PIPE TERM


@@ -331,12 +405,10 @@ if [ "$command" != "help" ]; then
     GPG_CMD="$GPG_CMD --no-auto-check-trustdb --trust-model always"
     GPG="$GPG_CMD"
 
     GPG_CMD="$GPG_CMD --no-auto-check-trustdb --trust-model always"
     GPG="$GPG_CMD"
 

-    # gpg defaults to mode 0600 for new keyrings. Create one with 0644 instead.
-    if ! [ -e "$TRUSTEDFILE" ]; then
-       if [ -w "$(dirname "$TRUSTEDFILE")" ]; then
-          touch -- "$TRUSTEDFILE"
-          chmod 0644 -- "$TRUSTEDFILE"
-       fi
+    # for advanced operations, we might really need a secret keyring after all
+    if [ -n "$FORCED_SECRET_KEYRING" ] && [ -r "$FORCED_SECRET_KEYRING" ]; then
+       rm -f "$SECRETKEYRING"
+       cp -a "$FORCED_SECRET_KEYRING" "$SECRETKEYRING"

     fi
 fi
 
     fi
 fi
 


@@ -345,6 +417,7 @@ case "$command" in
        requires_root
        setup_merged_keyring
        $GPG --quiet --batch --import "$@"
        requires_root
        setup_merged_keyring
        $GPG --quiet --batch --import "$@"

+       merge_back_changes

        aptkey_echo "OK"
         ;;
     del|rm|remove)
        aptkey_echo "OK"
         ;;
     del|rm|remove)


@@ -356,26 +429,37 @@ case "$command" in
        requires_root
        setup_merged_keyring
        update
        requires_root
        setup_merged_keyring
        update

+       merge_back_changes

        ;;
     net-update)
        requires_root
        setup_merged_keyring
        net_update
        ;;
     net-update)
        requires_root
        setup_merged_keyring
        net_update

+       merge_back_changes

        ;;
     list)
        ;;
     list)

-       foreach_keyring_do 'list_keys_from_keyring' "$@"
+       foreach_keyring_do 'run_cmd_on_keyring' --list-keys "$@"

        ;;
     finger*)
        ;;
     finger*)

-       foreach_keyring_do 'fingerprint_keys_from_keyring' "$@"
+       foreach_keyring_do 'run_cmd_on_keyring' --fingerprint "$@"

        ;;
     export|exportall)
        ;;
     export|exportall)

-       foreach_keyring_do 'import_keys_from_keyring' "${GPGHOMEDIR}/trusted.gpg"
-       $GPG_CMD --keyring "${GPGHOMEDIR}/trusted.gpg" --armor --export "$@"
+       foreach_keyring_do 'import_keys_from_keyring' "${GPGHOMEDIR}/pubring.gpg"
+       $GPG_CMD --keyring "${GPGHOMEDIR}/pubring.gpg" --armor --export "$@"

        ;;
     adv*)
        setup_merged_keyring
        aptkey_echo "Executing: $GPG $*"
        $GPG "$@"
        ;;
     adv*)
        setup_merged_keyring
        aptkey_echo "Executing: $GPG $*"
        $GPG "$@"

+       merge_back_changes
+       ;;
+    verify)
+       setup_merged_keyring
+       if which gpgv >/dev/null 2>&1; then
+           gpgv --homedir "${GPGHOMEDIR}" --keyring "${GPGHOMEDIR}/pubring.gpg" --ignore-time-conflict "$@"
+       else
+           $GPG --verify "$@"
+       fi

        ;;
     help)
         usage
        ;;
     help)
         usage