3 # monkeysphere-server: MonkeySphere server admin tool
5 # The monkeysphere scripts are written by:
6 # Jameson Rollins <jrollins@fifthhorseman.net>
7 # Jamie McClelland <jm@mayfirst.org>
8 # Daniel Kahn Gillmor <dkg@fifthhorseman.net>
10 # They are Copyright 2008, and are all released under the GPL, version 3
13 ########################################################################
16 SYSSHAREDIR=${MONKEYSPHERE_SYSSHAREDIR:-"/usr/share/monkeysphere"}
18 . "${SYSSHAREDIR}/common" || exit 1
20 SYSDATADIR=${MONKEYSPHERE_SYSDATADIR:-"/var/lib/monkeysphere"}
23 # UTC date in ISO 8601 format if needed
24 DATE=$(date -u '+%FT%T')
26 # unset some environment variables that could screw things up
32 ########################################################################
34 ########################################################################
38 usage: $PGRM <subcommand> [options] [args]
39 Monkeysphere server admin tool.
42 update-users (u) [USER]... update user authorized_keys files
44 gen-key (g) [NAME[:PORT]] generate gpg key for the server
45 --length (-l) BITS key length in bits (2048)
46 --expire (-e) EXPIRE date to expire
47 --revoker (-r) FINGERPRINT add a revoker
48 extend-key (e) EXPIRE extend expiration to EXPIRE
49 add-hostname (n+) NAME[:PORT] add hostname user ID to server key
50 revoke-hostname (n-) NAME[:PORT] revoke hostname user ID
51 show-key (s) output all server host key information
52 publish-key (p) publish server host key to keyserver
53 diagnostics (d) report on server monkeysphere status
55 add-id-certifier (c+) KEYID import and tsign a certification key
56 --domain (-n) DOMAIN limit ID certifications to DOMAIN
57 --trust (-t) TRUST trust level of certifier (full)
58 --depth (-d) DEPTH trust depth for certifier (1)
59 remove-id-certifier (c-) KEYID remove a certification key
60 list-id-certifiers (c) list certification keys
62 gpg-authentication-cmd CMD gnupg-authentication command
69 su_monkeysphere_user() {
70 su "$MONKEYSPHERE_USER" -c "$@"
73 # function to interact with the host gnupg keyring
77 GNUPGHOME="$GNUPGHOME_HOST"
80 # NOTE: we supress this warning because we need the monkeysphere
81 # user to be able to read the host pubring. we realize this might
82 # be problematic, but it's the simplest solution, without too much
84 gpg --no-permission-warning "$@"
87 # always reset the permissions on the host pubring so that the
88 # monkeysphere user can read the trust signatures
89 chgrp "$MONKEYSPHERE_USER" "${GNUPGHOME_HOST}/pubring.gpg"
90 chmod g+r "${GNUPGHOME_HOST}/pubring.gpg"
95 # function to interact with the authentication gnupg keyring
96 # FIXME: this function requires basically accepts only a single
97 # argument because of problems with quote expansion. this needs to be
99 gpg_authentication() {
100 GNUPGHOME="$GNUPGHOME_AUTHENTICATION"
103 su_monkeysphere_user "gpg $@"
106 # output just key fingerprint
107 fingerprint_server_key() {
108 gpg_host --list-secret-keys --fingerprint \
109 --with-colons --fixed-list-mode 2> /dev/null | \
110 grep '^fpr:' | head -1 | cut -d: -f10
113 # output key information
118 fingerprint=$(fingerprint_server_key)
119 gpg_authentication "--fingerprint --list-key --list-options show-unusable-uids $fingerprint"
121 # dumping to a file named ' ' so that the ssh-keygen output
122 # doesn't claim any potentially bogus hostname(s):
123 tmpkey=$(mktemp -d ${TMPDIR:-/tmp}/tmp.XXXXXXXXXX)
124 gpg_authentication "--export $fingerprint" | openpgp2ssh "$fingerprint" 2>/dev/null > "$tmpkey/ "
125 echo -n "ssh fingerprint: "
126 (cd "$tmpkey" && ssh-keygen -l -f ' ' | awk '{ print $2 }')
128 echo -n "OpenPGP fingerprint: "
132 # update authorized_keys for users
135 # get users from command line
138 # or just look at all users if none specified
139 unames=$(getent passwd | cut -d: -f1)
143 MODE="authorized_keys"
146 GNUPGHOME="$GNUPGHOME_AUTHENTICATION"
148 # check to see if the gpg trust database has been initialized
149 if [ ! -s "${GNUPGHOME}/trustdb.gpg" ] ; then
150 failure "GNUPG trust database uninitialized. Please see MONKEYSPHERE-SERVER(8)."
153 # make sure the authorized_keys directory exists
154 mkdir -p "${SYSDATADIR}/authorized_keys"
157 for uname in $unames ; do
158 # check all specified users exist
159 if ! getent passwd "$uname" >/dev/null ; then
160 log error "----- unknown user '$uname' -----"
164 # set authorized_user_ids and raw authorized_keys variables,
165 # translating ssh-style path variables
166 authorizedUserIDs=$(translate_ssh_variables "$uname" "$AUTHORIZED_USER_IDS")
167 rawAuthorizedKeys=$(translate_ssh_variables "$uname" "$RAW_AUTHORIZED_KEYS")
169 # if neither is found, skip user
170 if [ ! -s "$authorizedUserIDs" ] ; then
171 if [ "$rawAuthorizedKeys" = '-' -o ! -s "$rawAuthorizedKeys" ] ; then
176 log verbose "----- user: $uname -----"
178 # exit if the authorized_user_ids file is empty
179 if ! check_key_file_permissions "$uname" "$AUTHORIZED_USER_IDS" ; then
180 log error "Improper permissions on path '$AUTHORIZED_USER_IDS'."
184 # check permissions on the authorized_keys file path
185 if ! check_key_file_permissions "$uname" "$RAW_AUTHORIZED_KEYS" ; then
186 log error "Improper permissions on path '$RAW_AUTHORIZED_KEYS'."
190 # make temporary directory
191 TMPLOC=$(mktemp -d ${TMPDIR:-/tmp}/tmp.XXXXXXXXXX)
193 # trap to delete temporary directory on exit
194 trap "rm -rf $TMPLOC" EXIT
196 # create temporary authorized_user_ids file
197 TMP_AUTHORIZED_USER_IDS="${TMPLOC}/authorized_user_ids"
198 touch "$TMP_AUTHORIZED_USER_IDS"
200 # create temporary authorized_keys file
201 AUTHORIZED_KEYS="${TMPLOC}/authorized_keys"
202 touch "$AUTHORIZED_KEYS"
204 # set restrictive permissions on the temporary files
205 # FIXME: is there a better way to do this?
207 chmod 0600 "$AUTHORIZED_KEYS"
208 chmod 0600 "$TMP_AUTHORIZED_USER_IDS"
209 chown -R "$MONKEYSPHERE_USER" "$TMPLOC"
211 # if the authorized_user_ids file exists...
212 if [ -s "$authorizedUserIDs" ] ; then
213 # copy user authorized_user_ids file to temporary
215 cat "$authorizedUserIDs" > "$TMP_AUTHORIZED_USER_IDS"
217 # export needed variables
218 export AUTHORIZED_KEYS
219 export TMP_AUTHORIZED_USER_IDS
221 # process authorized_user_ids file, as monkeysphere
223 su_monkeysphere_user \
224 ". ${SYSSHAREDIR}/common; process_authorized_user_ids $TMP_AUTHORIZED_USER_IDS"
228 # add user-controlled authorized_keys file path if specified
229 if [ "$rawAuthorizedKeys" != '-' -a -s "$rawAuthorizedKeys" ] ; then
230 log verbose "adding raw authorized_keys file... "
231 cat "$rawAuthorizedKeys" >> "$AUTHORIZED_KEYS"
234 # openssh appears to check the contents of the
235 # authorized_keys file as the user in question, so the
236 # file must be readable by that user at least.
237 # FIXME: is there a better way to do this?
238 chown root "$AUTHORIZED_KEYS"
239 chgrp $(getent passwd "$uname" | cut -f4 -d:) "$AUTHORIZED_KEYS"
240 chmod g+r "$AUTHORIZED_KEYS"
242 # move the resulting authorized_keys file into place
243 mv -f "$AUTHORIZED_KEYS" "${SYSDATADIR}/authorized_keys/${uname}"
245 # destroy temporary directory
250 # generate server gpg key
262 # set default key parameter values
270 TEMP=$(PATH="/usr/local/bin:$PATH" getopt -o e:l:r -l expire:,length:,revoker: -n "$PGRM" -- "$@") || failure "getopt failed! Does your getopt support GNU-style long options?"
272 if [ $? != 0 ] ; then
276 # Note the quotes around `$TEMP': they are essential!
302 hostName=${1:-$(hostname -f)}
303 userID="ssh://${hostName}"
305 # check for presense of key with user ID
306 if gpg_host --list-key ="$userID" > /dev/null 2>&1 ; then
307 failure "Key for '$userID' already exists"
310 # prompt about key expiration if not specified
311 keyExpire=$(get_gpg_expiration "$keyExpire")
314 keyParameters=$(cat <<EOF
316 Key-Length: $keyLength
319 Expire-Date: $keyExpire
323 # add the revoker field if specified
324 # FIXME: the "1:" below assumes that $REVOKER's key is an RSA key.
325 # FIXME: key is marked "sensitive"? is this appropriate?
326 if [ "$revoker" ] ; then
327 keyParameters="${keyParameters}"$(cat <<EOF
328 Revoker: 1:$revoker sensitive
333 echo "The following key parameters will be used for the host private key:"
334 echo "$keyParameters"
336 read -p "Generate key? (Y/n) " OK; OK=${OK:=Y}
337 if [ ${OK/y/Y} != 'Y' ] ; then
342 keyParameters="${keyParameters}"$(cat <<EOF
349 log verbose "generating server key..."
350 echo "$keyParameters" | gpg_host --batch --gen-key
352 # output the server fingerprint
353 fingerprint_server_key "=${userID}"
355 # find the key fingerprint of the newly generated key
356 fingerprint=$(fingerprint_server_key)
358 # export host ownertrust to authentication keyring
359 log verbose "setting ultimate owner trust for server key..."
360 echo "${fingerprint}:6:" | gpg_authentication "--import-ownertrust"
362 # translate the private key to ssh format, and export to a file
364 # NOTE: assumes that the primary key is the proper key to use
366 gpg_host --export-secret-key "$fingerprint" | \
367 openpgp2ssh "$fingerprint" > "${SYSDATADIR}/ssh_host_rsa_key")
368 log info "Private SSH host key output to file: ${SYSDATADIR}/ssh_host_rsa_key"
371 # extend the lifetime of a host key:
373 local fpr=$(fingerprint_server_key)
376 if [ -z "$fpr" ] ; then
377 failure "You don't appear to have a MonkeySphere host key on this server. Try 'monkeysphere-server gen-key' first."
380 # get the new expiration date
381 extendTo=$(get_gpg_expiration "$extendTo")
383 gpg_host --quiet --command-fd 0 --edit-key "$fpr" <<EOF
390 echo "NOTE: Host key expiration date adjusted, but not yet published."
391 echo "Run '$PGRM publish-key' to publish the new expiration date."
394 # add hostname user ID to server key
402 if [ -z "$1" ] ; then
403 failure "You must specify a hostname to add."
408 fingerprint=$(fingerprint_server_key)
410 # match to only ultimately trusted user IDs
411 tmpuidMatch="u:$(echo $userID | gpg_escape)"
413 # find the index of the requsted user ID
414 # NOTE: this is based on circumstantial evidence that the order of
415 # this output is the appropriate index
416 if line=$(gpg_host --list-keys --with-colons --fixed-list-mode "0x${fingerprint}!" \
417 | egrep '^(uid|uat):' | cut -f2,10 -d: | grep -n -x -F "$tmpuidMatch") ; then
418 failure "Host userID '$userID' already exists."
421 echo "The following user ID will be added to the host key:"
423 read -p "Are you sure you would like to add this user ID? (y/N) " OK; OK=${OK:=N}
424 if [ ${OK/y/Y} != 'Y' ] ; then
425 failure "User ID not added."
428 # edit-key script command to add user ID
429 adduidCommand=$(cat <<EOF
438 # execute edit-key script
439 if echo "$adduidCommand" | \
440 gpg_host --quiet --command-fd 0 --edit-key "0x${fingerprint}!" ; then
442 # update the trustdb for the authentication keyring
443 gpg_authentication "--check-trustdb"
448 echo "NOTE: User ID added to key, but key not published."
449 echo "Run '$PGRM publish-key' to publish the new user ID."
451 failure "Problem adding user ID."
455 # revoke hostname user ID to server key
465 if [ -z "$1" ] ; then
466 failure "You must specify a hostname to revoke."
469 echo "WARNING: There is a known bug in this function."
470 echo "This function has been known to occasionally revoke the wrong user ID."
471 echo "Please see the following bug report for more information:"
472 echo "http://web.monkeysphere.info/bugs/revoke-hostname-revoking-wrong-userid/"
473 read -p "Are you sure you would like to proceed? (y/N) " OK; OK=${OK:=N}
474 if [ ${OK/y/Y} != 'Y' ] ; then
480 fingerprint=$(fingerprint_server_key)
482 # match to only ultimately trusted user IDs
483 tmpuidMatch="u:$(echo $userID | gpg_escape)"
485 # find the index of the requsted user ID
486 # NOTE: this is based on circumstantial evidence that the order of
487 # this output is the appropriate index
488 if line=$(gpg_host --list-keys --with-colons --fixed-list-mode "0x${fingerprint}!" \
489 | egrep '^(uid|uat):' | cut -f2,10 -d: | grep -n -x -F "$tmpuidMatch") ; then
492 failure "No non-revoked user ID '$userID' is found."
495 echo "The following host key user ID will be revoked:"
497 read -p "Are you sure you would like to revoke this user ID? (y/N) " OK; OK=${OK:=N}
498 if [ ${OK/y/Y} != 'Y' ] ; then
499 failure "User ID not revoked."
502 message="Hostname removed by monkeysphere-server $DATE"
504 # edit-key script command to revoke user ID
505 revuidCommand=$(cat <<EOF
517 # execute edit-key script
518 if echo "$revuidCommand" | \
519 gpg_host --quiet --command-fd 0 --edit-key "0x${fingerprint}!" ; then
521 # update the trustdb for the authentication keyring
522 gpg_authentication "--check-trustdb"
527 echo "NOTE: User ID revoked, but revocation not published."
528 echo "Run '$PGRM publish-key' to publish the revocation."
530 failure "Problem revoking user ID."
534 # publish server key to keyserver
535 publish_server_key() {
536 read -p "Really publish host key to $KEYSERVER? (y/N) " OK; OK=${OK:=N}
537 if [ ${OK/y/Y} != 'Y' ] ; then
538 failure "key not published."
541 # find the key fingerprint
542 fingerprint=$(fingerprint_server_key)
545 gpg_authentication "--keyserver $KEYSERVER --send-keys '0x${fingerprint}!'"
550 # * check on the status and validity of the key and public certificates
562 local problemsfound=0
564 # FIXME: what's the correct, cross-platform answer?
565 sshd_config=/etc/ssh/sshd_config
566 seckey=$(gpg_host --list-secret-keys --fingerprint --with-colons --fixed-list-mode)
567 keysfound=$(echo "$seckey" | grep -c ^sec:)
569 # warn when anything is 2 months away from expiration
570 warnwindow='2 months'
571 warndate=$(advance_date $warnwindow +%s)
573 if ! id monkeysphere >/dev/null ; then
574 echo "! No monkeysphere user found! Please create a monkeysphere system user with bash as its shell."
575 problemsfound=$(($problemsfound+1))
578 if ! [ -d "$SYSDATADIR" ] ; then
579 echo "! no $SYSDATADIR directory found. Please create it."
580 problemsfound=$(($problemsfound+1))
583 echo "Checking host GPG key..."
584 if (( "$keysfound" < 1 )); then
585 echo "! No host key found."
586 echo " - Recommendation: run 'monkeysphere-server gen-key'"
587 problemsfound=$(($problemsfound+1))
588 elif (( "$keysfound" > 1 )); then
589 echo "! More than one host key found?"
590 # FIXME: recommend a way to resolve this
591 problemsfound=$(($problemsfound+1))
593 create=$(echo "$seckey" | grep ^sec: | cut -f6 -d:)
594 expire=$(echo "$seckey" | grep ^sec: | cut -f7 -d:)
595 fingerprint=$(echo "$seckey" | grep ^fpr: | head -n1 | cut -f10 -d:)
596 # check for key expiration:
597 if [ "$expire" ]; then
598 if (( "$expire" < "$curdate" )); then
599 echo "! Host key is expired."
600 echo " - Recommendation: extend lifetime of key with 'monkeysphere-server extend-key'"
601 problemsfound=$(($problemsfound+1))
602 elif (( "$expire" < "$warndate" )); then
603 echo "! Host key expires in less than $warnwindow:" $(advance_date $(( $expire - $curdate )) seconds +%F)
604 echo " - Recommendation: extend lifetime of key with 'monkeysphere-server extend-key'"
605 problemsfound=$(($problemsfound+1))
610 if [ "$create" ] && (( "$create" > "$curdate" )); then
611 echo "! Host key was created in the future(?!). Is your clock correct?"
612 echo " - Recommendation: Check clock ($(date +%F_%T)); use NTP?"
613 problemsfound=$(($problemsfound+1))
616 # check for UserID expiration:
617 echo "$seckey" | grep ^uid: | cut -d: -f6,7,10 | \
618 while IFS=: read create expire uid ; do
619 # FIXME: should we be doing any checking on the form
620 # of the User ID? Should we be unmangling it somehow?
622 if [ "$create" ] && (( "$create" > "$curdate" )); then
623 echo "! User ID '$uid' was created in the future(?!). Is your clock correct?"
624 echo " - Recommendation: Check clock ($(date +%F_%T)); use NTP?"
625 problemsfound=$(($problemsfound+1))
627 if [ "$expire" ] ; then
628 if (( "$expire" < "$curdate" )); then
629 echo "! User ID '$uid' is expired."
630 # FIXME: recommend a way to resolve this
631 problemsfound=$(($problemsfound+1))
632 elif (( "$expire" < "$warndate" )); then
633 echo "! User ID '$uid' expires in less than $warnwindow:" $(advance_date $(( $expire - $curdate )) seconds +%F)
634 # FIXME: recommend a way to resolve this
635 problemsfound=$(($problemsfound+1))
640 # FIXME: verify that the host key is properly published to the
641 # keyservers (do this with the non-privileged user)
643 # FIXME: check that there are valid, non-expired certifying signatures
644 # attached to the host key after fetching from the public keyserver
645 # (do this with the non-privileged user as well)
647 # FIXME: propose adding a revoker to the host key if none exist (do we
648 # have a way to do that after key generation?)
650 # Ensure that the ssh_host_rsa_key file is present and non-empty:
652 echo "Checking host SSH key..."
653 if [ ! -s "${SYSDATADIR}/ssh_host_rsa_key" ] ; then
654 echo "! The host key as prepared for SSH (${SYSDATADIR}/ssh_host_rsa_key) is missing or empty."
655 problemsfound=$(($problemsfound+1))
657 if [ $(ls -l "${SYSDATADIR}/ssh_host_rsa_key" | cut -f1 -d\ ) != '-rw-------' ] ; then
658 echo "! Permissions seem wrong for ${SYSDATADIR}/ssh_host_rsa_key -- should be 0600."
659 problemsfound=$(($problemsfound+1))
662 # propose changes needed for sshd_config (if any)
663 if ! grep -q "^HostKey[[:space:]]\+${SYSDATADIR}/ssh_host_rsa_key$" "$sshd_config"; then
664 echo "! $sshd_config does not point to the monkeysphere host key (${SYSDATADIR}/ssh_host_rsa_key)."
665 echo " - Recommendation: add a line to $sshd_config: 'HostKey ${SYSDATADIR}/ssh_host_rsa_key'"
666 problemsfound=$(($problemsfound+1))
668 if badhostkeys=$(grep -i '^HostKey' "$sshd_config" | grep -v "^HostKey[[:space:]]\+${SYSDATADIR}/ssh_host_rsa_key$") ; then
669 echo "! $sshd_config refers to some non-monkeysphere host keys:"
671 echo " - Recommendation: remove the above HostKey lines from $sshd_config"
672 problemsfound=$(($problemsfound+1))
677 # FIXME: look at the ownership/privileges of the various keyrings,
678 # directories housing them, etc (what should those values be? can
679 # we make them as minimal as possible?)
681 # FIXME: look to see that the ownertrust rules are set properly on the
682 # authentication keyring
684 # FIXME: make sure that at least one identity certifier exists
686 # FIXME: look at the timestamps on the monkeysphere-generated
687 # authorized_keys files -- warn if they seem out-of-date.
690 echo "Checking for MonkeySphere-enabled public-key authentication for users ..."
691 # Ensure that User ID authentication is enabled:
692 if ! grep -q "^AuthorizedKeysFile[[:space:]]\+${SYSDATADIR}/authorized_keys/%u$" "$sshd_config"; then
693 echo "! $sshd_config does not point to monkeysphere authorized keys."
694 echo " - Recommendation: add a line to $sshd_config: 'AuthorizedKeysFile ${SYSDATADIR}/authorized_keys/%u'"
695 problemsfound=$(($problemsfound+1))
697 if badauthorizedkeys=$(grep -i '^AuthorizedKeysFile' "$sshd_config" | grep -v "^AuthorizedKeysFile[[:space:]]\+${SYSDATADIR}/authorized_keys/%u$") ; then
698 echo "! $sshd_config refers to non-monkeysphere authorized_keys files:"
699 echo "$badauthorizedkeys"
700 echo " - Recommendation: remove the above AuthorizedKeysFile lines from $sshd_config"
701 problemsfound=$(($problemsfound+1))
704 if [ "$problemsfound" -gt 0 ]; then
705 echo "When the above $problemsfound issue"$(if [ "$problemsfound" -eq 1 ] ; then echo " is" ; else echo "s are" ; fi)" resolved, please re-run:"
706 echo " monkeysphere-server diagnostics"
708 echo "Everything seems to be in order!"
712 # retrieve key from web of trust, import it into the host keyring, and
713 # ltsign the key in the host keyring so that it may certify other keys
723 # set default values for trust depth and domain
729 TEMP=$(PATH="/usr/local/bin:$PATH" getopt -o n:t:d: -l domain:,trust:,depth: -n "$PGRM" -- "$@") || failure "getopt failed! Does your getopt support GNU-style long options?"
731 if [ $? != 0 ] ; then
735 # Note the quotes around `$TEMP': they are essential!
762 if [ -z "$keyID" ] ; then
763 failure "You must specify the key ID of a key to add, or specify a file to read the key from."
765 if [ -f "$keyID" ] ; then
766 echo "Reading key from file '$keyID':"
767 importinfo=$(gpg_authentication "--import" < "$keyID" 2>&1) || failure "could not read key from '$keyID'"
768 # FIXME: if this is tried when the key database is not
769 # up-to-date, i got these errors (using set -x):
771 # ++ su -m monkeysphere -c '\''gpg --import'\''
772 # Warning: using insecure memory!
773 # gpg: key D21739E9: public key "Daniel Kahn Gillmor <dkg@fifthhorseman.net>" imported
774 # gpg: Total number processed: 1
775 # gpg: imported: 1 (RSA: 1)
776 # gpg: can'\''t create `/var/monkeysphere/gnupg-host/pubring.gpg.tmp'\'': Permission denied
777 # gpg: failed to rebuild keyring cache: Permission denied
778 # gpg: 3 marginal(s) needed, 1 complete(s) needed, PGP trust model
779 # gpg: depth: 0 valid: 1 signed: 0 trust: 0-, 0q, 0n, 0m, 0f, 1u
780 # gpg: next trustdb check due at 2009-01-10'
781 # + failure 'could not read key from '\''/root/dkg.gpg'\'''
782 # + echo 'could not read key from '\''/root/dkg.gpg'\'''
784 keyID=$(echo "$importinfo" | grep '^gpg: key ' | cut -f2 -d: | cut -f3 -d\ )
785 if [ -z "$keyID" ] || [ $(echo "$keyID" | wc -l) -ne 1 ] ; then
786 failure "Expected there to be a single gpg key in the file."
789 # get the key from the key server
790 gpg_authentication "--keyserver $KEYSERVER --recv-key '0x${keyID}!'" || failure "Could not receive a key with this ID from the '$KEYSERVER' keyserver."
796 # get the full fingerprint of a key ID
797 fingerprint=$(gpg_authentication "--list-key --with-colons --with-fingerprint 0x${keyID}!" | \
798 grep '^fpr:' | grep "$keyID" | cut -d: -f10)
800 if [ -z "$fingerprint" ] ; then
801 failure "Key '$keyID' not found."
806 gpg_authentication "--fingerprint 0x${fingerprint}!"
808 echo "Are you sure you want to add the above key as a"
809 read -p "certifier of users on this system? (y/N) " OK; OK=${OK:-N}
810 if [ "${OK/y/Y}" != 'Y' ] ; then
811 failure "Identity certifier not added."
814 # export the key to the host keyring
815 gpg_authentication "--export 0x${fingerprint}!" | gpg_host --import
817 if [ "$trust" == marginal ]; then
819 elif [ "$trust" == full ]; then
822 failure "Trust value requested ('$trust') was unclear (only 'marginal' or 'full' are supported)."
826 # NOTE: *all* user IDs will be ltsigned
827 ltsignCommand=$(cat <<EOF
839 if echo "$ltsignCommand" | \
840 gpg_host --quiet --command-fd 0 --edit-key "0x${fingerprint}!" ; then
842 # update the trustdb for the authentication keyring
843 gpg_authentication "--check-trustdb"
846 echo "Identity certifier added."
848 failure "Problem adding identify certifier."
852 # delete a certifiers key from the host keyring
858 if [ -z "$keyID" ] ; then
859 failure "You must specify the key ID of a key to remove."
862 if gpg_authentication "--no-options --list-options show-uid-validity --keyring ${GNUPGHOME_AUTHENTICATION}/pubring.gpg --list-key 0x${keyID}!" ; then
863 read -p "Really remove above listed identity certifier? (y/N) " OK; OK=${OK:-N}
864 if [ "${OK/y/Y}" != 'Y' ] ; then
865 failure "Identity certifier not removed."
871 # delete the requested key
872 if gpg_authentication "--delete-key --batch --yes 0x${keyID}!" ; then
873 # delete key from host keyring as well
874 gpg_host --delete-key --batch --yes "0x${keyID}!"
876 # update the trustdb for the authentication keyring
877 gpg_authentication "--check-trustdb"
880 echo "Identity certifier removed."
882 failure "Problem removing identity certifier."
886 # list the host certifiers
891 # find trusted keys in authentication keychain
892 keys=$(gpg_authentication "--no-options --list-options show-uid-validity --keyring ${GNUPGHOME_AUTHENTICATION}/pubring.gpg --list-keys --with-colons --fingerprint" | \
893 grep ^pub: | cut -d: -f2,5 | egrep '^(u|f):' | cut -d: -f2)
896 for key in $keys ; do
897 gpg_authentication "--no-options --list-options show-uid-validity --keyring ${GNUPGHOME_AUTHENTICATION}/pubring.gpg --list-key --fingerprint $key"
901 # issue command to gpg-authentication keyring
902 gpg_authentication_cmd() {
903 gpg_authentication "$@"
906 ########################################################################
908 ########################################################################
910 # unset variables that should be defined only in config file
912 unset AUTHORIZED_USER_IDS
913 unset RAW_AUTHORIZED_KEYS
914 unset MONKEYSPHERE_USER
916 # load configuration file
917 [ -e ${MONKEYSPHERE_SERVER_CONFIG:="${SYSCONFIGDIR}/monkeysphere-server.conf"} ] && . "$MONKEYSPHERE_SERVER_CONFIG"
919 # set empty config variable with ones from the environment, or with
921 LOG_LEVEL=${MONKEYSPHERE_LOG_LEVEL:=${LOG_LEVEL:="INFO"}}
922 KEYSERVER=${MONKEYSPHERE_KEYSERVER:=${KEYSERVER:="subkeys.pgp.net"}}
923 AUTHORIZED_USER_IDS=${MONKEYSPHERE_AUTHORIZED_USER_IDS:=${AUTHORIZED_USER_IDS:="%h/.monkeysphere/authorized_user_ids"}}
924 RAW_AUTHORIZED_KEYS=${MONKEYSPHERE_RAW_AUTHORIZED_KEYS:=${RAW_AUTHORIZED_KEYS:="%h/.ssh/authorized_keys"}}
925 MONKEYSPHERE_USER=${MONKEYSPHERE_MONKEYSPHERE_USER:=${MONKEYSPHERE_USER:="monkeysphere"}}
928 CHECK_KEYSERVER=${MONKEYSPHERE_CHECK_KEYSERVER:="true"}
929 REQUIRED_USER_KEY_CAPABILITY=${MONKEYSPHERE_REQUIRED_USER_KEY_CAPABILITY:="a"}
930 GNUPGHOME_HOST=${MONKEYSPHERE_GNUPGHOME_HOST:="${SYSDATADIR}/gnupg-host"}
931 GNUPGHOME_AUTHENTICATION=${MONKEYSPHERE_GNUPGHOME_AUTHENTICATION:="${SYSDATADIR}/gnupg-authentication"}
933 # export variables needed in su invocation
936 export MONKEYSPHERE_USER
939 export CHECK_KEYSERVER
940 export REQUIRED_USER_KEY_CAPABILITY
941 export GNUPGHOME_HOST
942 export GNUPGHOME_AUTHENTICATION
947 [ "$COMMAND" ] || failure "Type '$PGRM help' for usage."
951 'update-users'|'update-user'|'u')
963 'add-hostname'|'add-name'|'n+')
967 'revoke-hostname'|'revoke-name'|'n-')
971 'show-key'|'show'|'s')
975 'publish-key'|'publish'|'p')
983 'add-identity-certifier'|'add-id-certifier'|'add-certifier'|'c+')
987 'remove-identity-certifier'|'remove-id-certifier'|'remove-certifier'|'c-')
988 remove_certifier "$@"
991 'list-identity-certifiers'|'list-id-certifiers'|'list-certifiers'|'list-certifier'|'c')
995 'gpg-authentication-cmd')
996 gpg_authentication_cmd "$@"
999 '--help'|'help'|'-h'|'h'|'?')
1004 failure "Unknown command: '$COMMAND'
1005 Type '$PGRM help' for usage."