check host for gpg pub key file instead of fingerprint, and modify show_key to be...
[monkeysphere.git] / src / monkeysphere-host
index 4aab995950e89ed1323275431594023810503da8..6220760fa091a6e14a3d0461da817217d1da29bf 100755 (executable)
@@ -32,9 +32,12 @@ MHSHAREDIR="${SYSSHAREDIR}/mh"
 # datadir for host functions
 MHDATADIR="${SYSDATADIR}/host"
 
+# temp directory for temp gnupghome directories for add_revoker
+MHTMPDIR="${MHDATADIR}/tmp"
+export MHTMPDIR
+
 # host pub key files
-HOST_KEY_PUB="${SYSDATADIR}/ssh_host_rsa_key.pub"
-HOST_KEY_PUB_GPG="${SYSDATADIR}/ssh_host_rsa_key.pub.gpg"
+HOST_KEY_FILE="${SYSDATADIR}/ssh_host_rsa_key.pub.gpg"
 
 # UTC date in ISO 8601 format if needed
 DATE=$(date -u '+%FT%T')
@@ -63,12 +66,12 @@ subcommands:
  revoke-key (r)                      revoke host key
  publish-key (p)                     publish host key to keyserver
 
- expert <expert-subcommand>          run expert command
- expert help                         expert command help
+ import-key (i) [NAME[:PORT]]        import existing ssh key to gpg
 
  version (v)                         show version number
  help (h,?)                          this help
 
+See ${PGRM}(8) for more info.
 EOF
 }
 
@@ -91,45 +94,26 @@ gpg_host_edit() {
        "0x${HOST_FINGERPRINT}!" "$@"
 }
 
-# export the host key to stdout
-gpg_host_export() {
-    gpg_host --export --armor --export-options export-minimal \
-       "0x${HOST_FINGERPRINT}!"
-}
-
-# export the host secret key to the monkeysphere ssh sec key file
-# NOTE: assumes that the primary key is the proper key to use
-create_ssh_sec_file() {
-    log debug "creating ssh secret key file..."
-    (umask 077 && \
-       gpg_host --export-secret-key "$HOST_FINGERPRINT" | \
-       openpgp2ssh "$HOST_FINGERPRINT" > "${MHDATADIR}/ssh_host_rsa_key")
-    log info "SSH host secret key file: ${MHDATADIR}/ssh_host_rsa_key"
-}
-
-# export the host public key to the monkeysphere ssh pub key file
-create_ssh_pub_file() {
-    log debug "creating ssh public key file..."
-    ssh-keygen -y -f "${MHDATADIR}/ssh_host_rsa_key" > "$HOST_KEY_PUB"
-    log info "SSH host public key file: $HOST_KEY_PUB"
-}
-
 # export the host public key to the monkeysphere gpg pub key file
 create_gpg_pub_file() {
     log debug "creating openpgp public key file..."
-    gpg_host_export > "$HOST_KEY_PUB_GPG"
-    log info "GPG host public key file: $HOST_KEY_PUB_GPG"
+    gpg_host --export --armor --export-options export-minimal \
+       "0x${HOST_FINGERPRINT}!" > "$HOST_KEY_FILE"
+    log info "GPG host public key file: $HOST_KEY_FILE"
 }
 
 # load the host fingerprint into the fingerprint variable, using the
 # export gpg pub key file
+# FIXME: this seems much less than ideal, with all this temp keyring
+# stuff.  is there a way we can do this without having to create temp
+# files?
 load_fingerprint() {
-    if [ -f "$HOST_KEY_PUB_GPG" ] ; then
+    if [ -f "$HOST_KEY_FILE" ] ; then
        HOST_FINGERPRINT=$( \
            (FUBAR=$(mktemp -d) && export GNUPGHOME="$FUBAR" \
            && gpg --quiet --import \
            && gpg --quiet --list-keys --with-colons --with-fingerprint \
-           && rm -rf "$FUBAR") <"$HOST_KEY_PUB_GPG" \
+           && rm -rf "$FUBAR") <"$HOST_KEY_FILE" \
            | grep '^fpr:' | cut -d: -f10 )
     else
        HOST_FINGERPRINT=
@@ -145,23 +129,16 @@ load_fingerprint_secret() {
        | grep '^fpr:' | cut -d: -f10 )
 }
 
-# output host key ssh fingerprint
-load_ssh_fingerprint() {
-    [ -f "$HOST_KEY_PUB" ] || return 0
-    HOST_FINGERPRINT_SSH=$(ssh-keygen -l -f "$HOST_KEY_PUB" \
-       | awk '{ print $1, $2, $4 }')
-}
-
 # fail if host key present
 check_host_key() {
-    [ -z "$HOST_FINGERPRINT" ] \
+    [ ! -s "$HOST_KEY_FILE" ] \
        || failure "An OpenPGP host key already exists."
 }
 
 # fail if host key not present
 check_host_no_key() {
-    [ "$HOST_FINGERPRINT" ] \
-       || failure "You don't appear to have a Monkeysphere host key on this server.  Please run 'monkeysphere-host expert import-key' first."
+    [ -s "$HOST_KEY_FILE" ] \
+       || failure "You don't appear to have a Monkeysphere host key on this server.  Please run 'monkeysphere-host import-key' first."
 }
 
 # output the index of a user ID on the host key
@@ -190,21 +167,34 @@ find_host_userid() {
 
 # show info about the host key
 show_key() {
-    gpg_host --fingerprint --list-key --list-options show-unusable-uids \
-       "0x${HOST_FINGERPRINT}!" 2>/dev/null
-    # FIXME: make sure expiration date is shown
+    local GNUPGHOME
 
-    echo "OpenPGP fingerprint: $HOST_FINGERPRINT"
+    # tmp gpghome dir
+    export GNUPGHOME=$(mktemp -d)
 
-    load_ssh_fingerprint
+    # trap to remove tmp dir if break
+    trap "rm -rf $GNUPGHOME" EXIT
 
-    if [ "$HOST_FINGERPRINT_SSH" ] ; then
-       echo "ssh fingerprint: $HOST_FINGERPRINT_SSH"
-    else
-       log error "SSH host key not found."
-    fi
+    gpg --quiet --import <"$HOST_KEY_FILE"
+
+    HOST_FINGERPRINT=$(gpg --quiet --list-keys --with-colons --with-fingerprint \
+       | grep '^fpr:' | cut -d: -f10 )
+
+    # list the host key info
+    gpg --list-key --fingerprint --list-options show-unusable-uids 2>/dev/null
+
+    # list the pgp fingerprint
+    echo "OpenPGP fingerprint: $HOST_FINGERPRINT"
 
-    # FIXME: other relevant key parameters?
+    # list the ssh fingerprint
+    echo -n "ssh fingerprint: "
+    ssh-keygen -l -f /dev/stdin \
+       <<<$(openpgp2ssh <"$HOST_KEY_FILE" 2>/dev/null) \
+       | awk '{ print $1, $2, $4 }'
+
+    # remove the tmp file
+    trap - EXIT
+    rm -rf "$GNUPGHOME"
 }
 
 ########################################################################
@@ -239,7 +229,6 @@ export KEYSERVER
 export GNUPGHOME_HOST
 export GNUPGHOME
 export HOST_FINGERPRINT=
-export HOST_FINGERPRINT_SSH=
 
 # get subcommand
 COMMAND="$1"
@@ -248,94 +237,62 @@ shift
 
 case $COMMAND in
     'show-key'|'show'|'s')
-       load_fingerprint
        check_host_no_key
        show_key
        ;;
 
     'set-expire'|'extend-key'|'e')
-       load_fingerprint
        check_host_no_key
+       load_fingerprint
        source "${MHSHAREDIR}/set_expire"
        set_expire "$@"
        ;;
 
     'add-hostname'|'add-name'|'n+')
-       load_fingerprint
        check_host_no_key
+       load_fingerprint
        source "${MHSHAREDIR}/add_hostname"
        add_hostname "$@"
        ;;
 
     'revoke-hostname'|'revoke-name'|'n-')
-       load_fingerprint
        check_host_no_key
+       load_fingerprint
        source "${MHSHAREDIR}/revoke_hostname"
        revoke_hostname "$@"
        ;;
 
     'add-revoker'|'o')
-       load_fingerprint
        check_host_no_key
+       load_fingerprint
        source "${MHSHAREDIR}/add_revoker"
        add_revoker "$@"
        ;;
 
     'revoke-key'|'r')
-       load_fingerprint
        check_host_no_key
+       load_fingerprint
        source "${MHSHAREDIR}/revoke_key"
        revoke_key "$@"
        ;;
 
     'publish-key'|'publish'|'p')
-       load_fingerprint
        check_host_no_key
+       load_fingerprint
        source "${MHSHAREDIR}/publish_key"
        publish_key
        ;;
 
-    'expert')
-       SUBCOMMAND="$1"
-       shift
-       case "$SUBCOMMAND" in
-           'help'|'h'|'?')
-               cat <<EOF
-usage: $PGRM expert <subcommand> [options] [args]
-
-expert subcommands:
- import-key (i) [NAME[:PORT]]        import existing ssh key to gpg
- gen-key (g) [NAME[:PORT]]           generate gpg key for the host
-   --length (-l) BITS                  key length in bits (2048)
- diagnostics (d)                     monkeysphere host status
+    'import-key'|'i')
+       check_host_key
+       source "${MHSHAREDIR}/import_key"
+       import_key "$@"
+       ;;
 
-EOF
-               ;;
-
-           'import-key'|'i')
-               load_fingerprint
-               check_host_key
-               source "${MHSHAREDIR}/import_key"
-               import_key "$@"
-               ;;
-
-           'gen-key'|'g')
-               load_fingerprint
-               check_host_key
-               source "${MHSHAREDIR}/gen_key"
-               gen_key "$@"
-               ;;
-
-           'diagnostics'|'d')
-               source "${MHSHAREDIR}/diagnostics"
-               diagnostics
-               ;;
-
-           *)
-               failure "Unknown expert subcommand: '$COMMAND'
-Type '$PGRM help' for usage."
-               ;;
-       esac
+    'diagnostics'|'d')
+       load_fingerprint
+       source "${MHSHAREDIR}/diagnostics"
+       diagnostics
        ;;
 
     'version'|'v')