Fix how version number is saved/retrieved. Version is now stored in
[monkeysphere.git] / src / monkeysphere-host
index 64023e056c7ad6de9e6a1c5bf978d503010ecfbf..c454354f5b60fd1e85d541401021d25614cd5045 100755 (executable)
@@ -32,10 +32,6 @@ MHSHAREDIR="${SYSSHAREDIR}/mh"
 # datadir for host functions
 MHDATADIR="${SYSDATADIR}/host"
 
-# temp directory for temp gnupghome directories for add_revoker
-MHTMPDIR="${MHDATADIR}/tmp"
-export MHTMPDIR
-
 # host pub key files
 HOST_KEY_FILE="${SYSDATADIR}/ssh_host_rsa_key.pub.gpg"
 
@@ -58,29 +54,30 @@ usage: $PGRM <subcommand> [options] [args]
 Monkeysphere host admin tool.
 
 subcommands:
+ import-key (i) FILE NAME[:PORT]     import existing ssh key to gpg
  show-key (s)                        output all host key information
- set-expire (e) EXPIRE               set host key expiration
+ publish-key (p)                     publish host key to keyserver
+ set-expire (e) [EXPIRE]             set host key expiration
  add-hostname (n+) NAME[:PORT]       add hostname user ID to host key
  revoke-hostname (n-) NAME[:PORT]    revoke hostname user ID
- add-revoker (o) FINGERPRINT         add a revoker to the host key
- 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
+ add-revoker (r+) [KEYID|FILE]        add a revoker to the host key
+ revoke-key                          generate and/or publish revocation
+                                     certificate for host key
 
  version (v)                         show version number
  help (h,?)                          this help
 
+See ${PGRM}(8) for more info.
 EOF
 }
 
 # function to interact with the gpg keyring
 gpg_host() {
-    GNUPGHOME="$GNUPGHOME_HOST" gpg "$@"
+    GNUPGHOME="$GNUPGHOME_HOST" gpg --no-greeting --quiet --no-tty "$@"
 }
 
-# command to list the info about the host key, in colon format
+# command to list the info about the host key, in colon format, to
+# stdout
 gpg_host_list() {
     gpg_host --list-keys --with-colons --fixed-list-mode \
        --with-fingerprint --with-fingerprint \
@@ -90,23 +87,21 @@ gpg_host_list() {
 
 # command for edit key scripts, takes scripts on stdin
 gpg_host_edit() {
-    gpg_host --quiet --command-fd 0 --edit-key \
-       "0x${HOST_FINGERPRINT}!" "$@"
+    gpg_host --command-fd 0 --edit-key "0x${HOST_FINGERPRINT}!" "$@"
 }
 
 # export the host public key to the monkeysphere gpg pub key file
-create_gpg_pub_file() {
-    log debug "creating openpgp public key file..."
+update_gpg_pub_file() {
+    log debug "updating openpgp public key file '$HOST_KEY_FILE'..."
     gpg_host --export --armor --export-options export-minimal \
        "0x${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?
+# files?  what if we stored the fingerprint in MHDATADIR/fingerprint?
 load_fingerprint() {
     if [ -f "$HOST_KEY_FILE" ] ; then
        HOST_FINGERPRINT=$( \
@@ -116,7 +111,7 @@ load_fingerprint() {
            && rm -rf "$FUBAR") <"$HOST_KEY_FILE" \
            | grep '^fpr:' | cut -d: -f10 )
     else
-       HOST_FINGERPRINT=
+       failure "host key gpg pub file not found."
     fi
 }
 
@@ -124,21 +119,21 @@ load_fingerprint() {
 # gpg host secret key
 load_fingerprint_secret() {
     HOST_FINGERPRINT=$( \
-       gpg_host --quiet --list-secret-key \
-       --with-colons --with-fingerprint \
+       gpg_host --list-secret-key --with-colons --with-fingerprint \
        | grep '^fpr:' | cut -d: -f10 )
 }
 
 # 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
@@ -167,53 +162,87 @@ find_host_userid() {
 
 # show info about the host key
 show_key() {
-    gpg_host --fingerprint --list-key --list-options show-unusable-uids \
-       "0x${HOST_FINGERPRINT}!" 2>/dev/null || true
-    # FIXME: make sure expiration date is shown
+    local GNUPGHOME
+    local TMPSSH
+    local revokers
+
+    # tmp gpghome dir
+    export GNUPGHOME=$(msmktempdir)
+
+    # trap to remove tmp dir if break
+    trap "rm -rf $GNUPGHOME" EXIT
+
+    # import the host key into the tmp dir
+    gpg --quiet --import <"$HOST_KEY_FILE"
+
+    # create the ssh key
+    TMPSSH="$GNUPGHOME"/ssh_host_key_rsa_pub
+    openpgp2ssh <"$HOST_KEY_FILE" 2>/dev/null >"$TMPSSH"
+
+    # get the gpg fingerprint
+    HOST_FINGERPRINT=$(gpg --quiet --list-keys --with-colons --with-fingerprint \
+       | grep '^fpr:' | cut -d: -f10 )
+
+    # list the host key info
+    # FIXME: make no-show-keyring work so we don't have to do the grep'ing
+    # FIXME: can we show uid validity somehow?
+    gpg --list-keys --fingerprint \
+       --list-options show-unusable-uids 2>/dev/null \
+       | grep -v "^${GNUPGHOME}/pubring.gpg$" \
+       | egrep -v '^-+$'
+
+    # list revokers, if there are any
+    revokers=$(gpg --list-keys --with-colons --fixed-list-mode \
+       | awk -F: '/^rvk:/{ print $10 }' )
+    if [ "$revokers" ] ; then
+       echo "The following keys are allowed to revoke this host key:"
+       for key in $revokers ; do
+           echo "revoker: $key"
+       done
+       echo
+    fi
 
+    # list the pgp fingerprint
     echo "OpenPGP fingerprint: $HOST_FINGERPRINT"
 
+    # list the ssh fingerprint
     echo -n "ssh fingerprint: "
-    ssh-keygen -l -f /dev/stdin \
-       <<<$( gpg_host --export FEE16FA3 2>/dev/null \
-       | openpgp2ssh 8445B5203A8443B4B04F637DD4DE66B2FEE16FA3 2>/dev/null) \
-       | awk '{ print $1, $2, $4 }'
+    ssh-keygen -l -f "$TMPSSH" | awk '{ print $1, $2, $4 }'
 
-    # FIXME: other relevant key parameters?
+    # remove the tmp file
+    trap - EXIT
+    rm -rf "$GNUPGHOME"
 }
 
 ########################################################################
 # MAIN
 ########################################################################
 
-# unset variables that should be defined only in config file
-unset KEYSERVER
-unset MONKEYSPHERE_USER
-
 # load configuration file
-[ -e ${MONKEYSPHERE_HOST_CONFIG:="${SYSCONFIGDIR}/monkeysphere-host.conf"} ] && . "$MONKEYSPHERE_HOST_CONFIG"
+[ -e ${MONKEYSPHERE_HOST_CONFIG:="${SYSCONFIGDIR}/monkeysphere-host.conf"} ] \
+    && . "$MONKEYSPHERE_HOST_CONFIG"
 
 # set empty config variable with ones from the environment, or with
 # defaults
-LOG_LEVEL=${MONKEYSPHERE_LOG_LEVEL:=${LOG_LEVEL:="INFO"}}
-KEYSERVER=${MONKEYSPHERE_KEYSERVER:=${KEYSERVER:="pool.sks-keyservers.net"}}
-AUTHORIZED_USER_IDS=${MONKEYSPHERE_AUTHORIZED_USER_IDS:=${AUTHORIZED_USER_IDS:="%h/.monkeysphere/authorized_user_ids"}}
-RAW_AUTHORIZED_KEYS=${MONKEYSPHERE_RAW_AUTHORIZED_KEYS:=${RAW_AUTHORIZED_KEYS:="%h/.ssh/authorized_keys"}}
-MONKEYSPHERE_USER=${MONKEYSPHERE_MONKEYSPHERE_USER:=${MONKEYSPHERE_USER:="monkeysphere"}}
+LOG_LEVEL=${MONKEYSPHERE_LOG_LEVEL:=$LOG_LEVEL}
+KEYSERVER=${MONKEYSPHERE_KEYSERVER:=$KEYSERVER}
+CHECK_KEYSERVER=${MONKEYSPHERE_CHECK_KEYSERVER:=$CHECK_KEYSERVER}
+MONKEYSPHERE_USER=${MONKEYSPHERE_MONKEYSPHERE_USER:=$MONKEYSPHERE_USER}
+PROMPT=${MONKEYSPHERE_PROMPT:=$PROMPT}
 
 # other variables
-CHECK_KEYSERVER=${MONKEYSPHERE_CHECK_KEYSERVER:="true"}
 GNUPGHOME_HOST=${MONKEYSPHERE_GNUPGHOME_HOST:="${MHDATADIR}"}
 
 # export variables needed in su invocation
 export DATE
-export MODE
 export LOG_LEVEL
-export MONKEYSPHERE_USER
 export KEYSERVER
+export CHECK_KEYSERVER
+export MONKEYSPHERE_USER
+export PROMPT
 export GNUPGHOME_HOST
 export GNUPGHOME
-export HOST_FINGERPRINT=
+export HOST_FINGERPRINT
 
 # get subcommand
 COMMAND="$1"
@@ -221,99 +250,72 @@ COMMAND="$1"
 shift
 
 case $COMMAND in
+    'import-key'|'i')
+       check_host_key
+       source "${MHSHAREDIR}/import_key"
+       import_key "$@"
+       ;;
+
     '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
+    'add-revoker'|'r+')
        check_host_no_key
+       load_fingerprint
        source "${MHSHAREDIR}/add_revoker"
        add_revoker "$@"
        ;;
 
-    'revoke-key'|'r')
-       load_fingerprint
+    'revoke-key')
        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: $PGRM expert <subcommand> [options] [args]
-
-expert subcommands:
- import-key (i) [NAME[:PORT]]        import existing ssh key to gpg
- gen-key (g) [NAME[:PORT]]           generate gpg key for the host
-   --length (-l) BITS                  key length in bits (2048)
- diagnostics (d)                     monkeysphere host status
+    'diagnostics'|'d')
+       load_fingerprint
+       source "${MHSHAREDIR}/diagnostics"
+       diagnostics
+       ;;
 
-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
+    'update-gpg-pub-file')
+       load_fingerprint_secret
+       update_gpg_pub_file
        ;;
 
     'version'|'v')
-       echo "$VERSION"
+       version
        ;;
 
     '--help'|'help'|'-h'|'h'|'?')