3 # monkeysphere-server: MonkeySphere server admin tool
5 # The monkeysphere scripts are written by:
6 # Jameson Rollins <jrollins@fifthhorseman.net>
8 # They are Copyright 2008, and are all released under the GPL, version 3
11 ########################################################################
14 SHAREDIR=${SHAREDIR:-"/usr/share/monkeysphere"}
16 . "${SHAREDIR}/common"
18 # date in UTF format if needed
19 DATE=$(date -u '+%FT%T')
21 # unset some environment variables that could screw things up
24 ########################################################################
26 ########################################################################
30 usage: $PGRM <subcommand> [args]
31 MonkeySphere server admin tool.
34 update-users (s) [USER]... update users authorized_keys files
35 gen-key (g) [HOSTNAME] generate gpg key for the server
36 publish-key (p) publish server key to keyserver
37 trust-keys (t) KEYID... mark keyids as trusted
38 update-user-userids (u) USER UID... add/update user IDs for a user
39 remove-user-userids (r) USER UID... remove user IDs for a user
45 # generate server gpg key
49 hostName=${1:-$(hostname --fqdn)}
52 KEY_TYPE=${KEY_TYPE:-"RSA"}
53 KEY_LENGTH=${KEY_LENGTH:-"2048"}
54 KEY_USAGE=${KEY_USAGE:-"auth,encrypt"}
56 Please specify how long the key should be valid.
57 0 = key does not expire
58 <n> = key expires in n days
59 <n>w = key expires in n weeks
60 <n>m = key expires in n months
61 <n>y = key expires in n years
63 read -p "Key is valid for? ($EXPIRE) " EXPIRE; EXPIRE=${EXPIRE:-"0"}
65 SERVICE=${SERVICE:-"ssh"}
66 USERID=${USERID:-"$SERVICE"://"$hostName"}
69 keyParameters=$(cat <<EOF
71 Key-Length: $KEY_LENGTH
78 # add the revoker field if requested
79 if [ "$REVOKER" ] ; then
80 keyParameters="${keyParameters}"$(cat <<EOF
82 Revoker: 1:$REVOKER sensitive
87 echo "The following key parameters will be used:"
90 read -p "generate key? [Y|n]: " OK; OK=${OK:=Y}
91 if [ ${OK/y/Y} != 'Y' ] ; then
95 if gpg --list-key ="$USERID" > /dev/null 2>&1 ; then
96 failure "key for '$USERID' already exists"
100 keyParameters="${keyParameters}"$(cat <<EOF
107 log -n "generating server key... "
108 echo "$keyParameters" | gpg --batch --gen-key
112 ########################################################################
114 ########################################################################
117 [ "$COMMAND" ] || failure "Type '$PGRM help' for usage."
120 # set ms home directory
121 MS_HOME=${MS_HOME:-"$ETC"}
123 # load configuration file
124 MS_CONF=${MS_CONF:-"$MS_HOME"/monkeysphere-server.conf}
125 [ -e "$MS_CONF" ] && . "$MS_CONF"
127 # set empty config variable with defaults
128 GNUPGHOME=${GNUPGHOME:-"${MS_HOME}/gnupg"}
129 KEYSERVER=${KEYSERVER:-"subkeys.pgp.net"}
130 REQUIRED_USER_KEY_CAPABILITY=${REQUIRED_USER_KEY_CAPABILITY:-"a"}
131 USER_CONTROLLED_AUTHORIZED_KEYS=${USER_CONTROLLED_AUTHORIZED_KEYS:-"%h/.ssh/authorized_keys"}
135 # make sure gpg home exists with proper permissions
136 mkdir -p -m 0700 "$GNUPGHOME"
139 'update-users'|'update-user'|'s')
143 unames=$(ls -1 "$MS_HOME"/authorized_user_ids)
146 for uname in $unames ; do
147 MODE="authorized_keys"
149 log "----- user: $uname -----"
151 # set variables for the user
152 AUTHORIZED_USER_IDS="$MS_HOME"/authorized_user_ids/"$uname"
153 msAuthorizedKeys="$CACHE"/"$uname"/authorized_keys
154 cacheDir="$CACHE"/"$uname"/user_keys
156 # make sure user's authorized_user_ids file exists
157 touch "$AUTHORIZED_USER_IDS"
159 # skip if the user's authorized_user_ids file is empty
160 if [ ! -s "$AUTHORIZED_USER_IDS" ] ; then
161 log "authorized_user_ids file for '$uname' is empty."
165 # set user-controlled authorized_keys file path
166 if [ "$USER_CONTROLLED_AUTHORIZED_KEYS" ] ; then
167 userHome=$(getent passwd "$uname" | cut -d: -f6)
168 userAuthorizedKeys=${USER_CONTROLLED_AUTHORIZED_KEYS/\%h/"$userHome"}
171 # update authorized_keys
172 update_authorized_keys "$msAuthorizedKeys" "$userAuthorizedKeys" "$cacheDir"
175 log "----- done. -----"
186 'trust-keys'|'trust-key'|'t')
187 if [ -z "$1" ] ; then
188 failure "You must specify at least one key to trust."
197 'update-user-userids'|'update-user-userid'|'u')
200 if [ -z "$uname" ] ; then
201 failure "You must specify user."
203 if [ -z "$1" ] ; then
204 failure "You must specify at least one user ID."
207 # set variables for the user
208 AUTHORIZED_USER_IDS="$MS_HOME"/authorized_user_ids/"$uname"
209 cacheDir="$CACHE"/"$uname"/user_keys
211 # make sure user's authorized_user_ids file exists
212 touch "$AUTHORIZED_USER_IDS"
214 # process the user IDs
216 update_userid "$userID" "$cacheDir"
219 log "Run the following to update user's authorized_keys file:"
220 log "$PGRM update-users $uname"
223 'remove-user-userids'|'remove-user-userid'|'r')
226 if [ -z "$uname" ] ; then
227 failure "You must specify user."
229 if [ -z "$1" ] ; then
230 failure "You must specify at least one user ID."
233 # set variables for the user
234 AUTHORIZED_USER_IDS="$MS_HOME"/authorized_user_ids/"$uname"
236 # make sure user's authorized_user_ids file exists
237 touch "$AUTHORIZED_USER_IDS"
239 # process the user IDs
241 remove_userid "$userID"
244 log "Run the following to update user's authorized_keys file:"
245 log "$PGRM update-users $uname"
253 failure "Unknown command: '$COMMAND'
254 Type '$PGRM help' for usage."