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"}
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=${KEYSERVER:-"subkeys.pgp.net"}
130 CHECK_KEYSERVER=${CHECK_KEYSERVER:="true"}
131 REQUIRED_USER_KEY_CAPABILITY=${REQUIRED_USER_KEY_CAPABILITY:-"a"}
132 USER_CONTROLLED_AUTHORIZED_KEYS=${USER_CONTROLLED_AUTHORIZED_KEYS:-"%h/.ssh/authorized_keys"}
136 # make sure the monkeysphere home directory exists
137 mkdir -p "${MS_HOME}/authorized_user_ids"
138 # make sure gpg home exists with proper permissions
139 mkdir -p -m 0700 "$GNUPGHOME"
140 # make sure the authorized_keys directory exists
141 mkdir -p "${CACHE}/authorized_keys"
144 'update-users'|'update-user'|'s')
148 unames=$(ls -1 "${MS_HOME}/authorized_user_ids")
151 for uname in $unames ; do
152 MODE="authorized_keys"
154 log "----- user: $uname -----"
156 # set variables for the user
157 AUTHORIZED_USER_IDS="${MS_HOME}/authorized_user_ids/${uname}"
158 # temporary authorized_keys file
159 AUTHORIZED_KEYS="${CACHE}/authorized_keys/${uname}.tmp"
161 # make sure user's authorized_user_ids file exists
162 touch "$AUTHORIZED_USER_IDS"
163 # make sure the authorized_keys file exists and is clear
166 # skip if the user's authorized_user_ids file is empty
167 if [ ! -s "$AUTHORIZED_USER_IDS" ] ; then
168 log "authorized_user_ids file for '$uname' is empty."
172 # process authorized_user_ids file
173 log "processing authorized_user_ids file..."
174 process_authorized_user_ids
176 # add user-controlled authorized_keys file path if specified
177 if [ "$USER_CONTROLLED_AUTHORIZED_KEYS" != '-' ] ; then
178 userHome=$(getent passwd "$uname" | cut -d: -f6)
179 userAuthorizedKeys=${USER_CONTROLLED_AUTHORIZED_KEYS/\%h/"$userHome"}
180 log -n "adding user's authorized_keys file... "
181 cat "$userAuthorizedKeys" >> "$AUTHORIZED_KEYS"
185 # move the temp authorized_keys file into place
186 mv -f "${CACHE}/authorized_keys/${uname}.tmp" "${CACHE}/authorized_keys/${uname}"
188 log "authorized_keys file updated."
191 log "----- done. -----"
202 'trust-keys'|'trust-key'|'t')
203 if [ -z "$1" ] ; then
204 failure "You must specify at least one key to trust."
213 'update-user-userids'|'update-user-userid'|'u')
216 if [ -z "$uname" ] ; then
217 failure "You must specify user."
219 if [ -z "$1" ] ; then
220 failure "You must specify at least one user ID."
223 # set variables for the user
224 AUTHORIZED_USER_IDS="$MS_HOME"/authorized_user_ids/"$uname"
226 # make sure user's authorized_user_ids file exists
227 touch "$AUTHORIZED_USER_IDS"
229 # process the user IDs
231 update_userid "$userID"
234 log "Run the following to update user's authorized_keys file:"
235 log "$PGRM update-users $uname"
238 'remove-user-userids'|'remove-user-userid'|'r')
241 if [ -z "$uname" ] ; then
242 failure "You must specify user."
244 if [ -z "$1" ] ; then
245 failure "You must specify at least one user ID."
248 # set variables for the user
249 AUTHORIZED_USER_IDS="$MS_HOME"/authorized_user_ids/"$uname"
251 # make sure user's authorized_user_ids file exists
252 touch "$AUTHORIZED_USER_IDS"
254 # process the user IDs
256 remove_userid "$userID"
259 log "Run the following to update user's authorized_keys file:"
260 log "$PGRM update-users $uname"
268 failure "Unknown command: '$COMMAND'
269 Type '$PGRM help' for usage."