3 # monkeysphere: MonkeySphere client 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 GLOBAL_CONFIG=${GLOBAL_CONFIG:-"${ETC}/monkeysphere.conf"}
19 [ -r "$GLOBAL_CONFIG" ] && . "$GLOBAL_CONFIG"
21 # date in UTF format if needed
22 DATE=$(date -u '+%FT%T')
24 # unset some environment variables that could screw things up
31 ########################################################################
33 ########################################################################
37 usage: $PGRM <subcommand> [args]
38 MonkeySphere client tool.
41 update-known_hosts (k) [HOST]... update known_hosts file
42 update-authorized_keys (a) update authorized_keys file
43 gen-subkey (g) KEYID generate an 'a' capable subkey
49 # generate a subkey with the 'a' usage flags set
50 # FIXME: this needs some tweaking to clean it up
58 gpgOut=$(gpg --quiet --fixed-list-mode --list-keys --with-colons \
59 "$keyID" 2> /dev/null)
61 # fail if there only "tru" lines are output from gpg, which
62 # indicates the key was not found.
63 if [ -z "$(echo "$gpgOut" | grep -v '^tru:')" ] ; then
64 failure "Key ID '$keyID' not found."
67 # fail if multiple pub lines are returned, which means the id given
69 if [ $(echo "$gpgOut" | grep '^pub:' | wc -l) -gt '1' ] ; then
70 failure "Key ID '$keyID' is not unique."
73 # prompt if an authentication subkey already exists
74 if echo "$gpgOut" | egrep "^(pub|sub):" | cut -d: -f 12 | grep -q a ; then
75 echo "An authentication subkey already exists for key '$keyID'."
76 read -p "Are you sure you would like to generate another one? [y|N]: " OK; OK=${OK:N}
77 if [ "${OK/y/Y}" != 'Y' ] ; then
83 SUBKEY_TYPE=${SUBKEY_TYPE:-"RSA"}
84 SUBKEY_LENGTH=${SUBKEY_LENGTH:-}
85 SUBKEY_USAGE=${SUBKEY_USAGE:-"auth"}
86 SUBKEY_EXPIRE=${SUBKEY_EXPIRE:-"0"}
88 Please specify how long the key should be valid.
89 0 = key does not expire
90 <n> = key expires in n days
91 <n>w = key expires in n weeks
92 <n>m = key expires in n months
93 <n>y = key expires in n years
95 read -p "Key is valid for? ($SUBKEY_EXPIRE) " SUBKEY_EXPIRE; SUBKEY_EXPIRE=${SUBKEY_EXPIRE:-"0"}
97 # generate the list of commands that will be passed to edit-key
98 editCommands=$(cat <<EOF
111 log "generating subkey..."
112 echo "$editCommands" | gpg --expert --command-fd 0 --edit-key "$keyID"
116 ########################################################################
118 ########################################################################
121 [ "$COMMAND" ] || failure "Type '$PGRM help' for usage."
124 # set ms home directory
125 MS_HOME=${MS_HOME:-"${HOME}/.config/monkeysphere"}
127 # load configuration file
128 MS_CONF=${MS_CONF:-"${MS_HOME}/monkeysphere.conf"}
129 [ -e "$MS_CONF" ] && . "$MS_CONF"
131 # set empty config variable with defaults
132 AUTHORIZED_USER_IDS=${AUTHORIZED_USER_IDS:-"${MS_HOME}/authorized_user_ids"}
133 GNUPGHOME=${GNUPGHOME:-"${HOME}/.gnupg"}
134 KEYSERVER=${KEYSERVER:-"subkeys.pgp.net"}
135 CHECK_KEYSERVER=${CHECK_KEYSERVER:="true"}
136 REQUIRED_HOST_KEY_CAPABILITY=${REQUIRED_HOST_KEY_CAPABILITY:-"a"}
137 REQUIRED_USER_KEY_CAPABILITY=${REQUIRED_USER_KEY_CAPABILITY:-"a"}
138 KNOWN_HOSTS=${KNOWN_HOSTS:-"${HOME}/.ssh/known_hosts"}
139 AUTHORIZED_KEYS=${AUTHORIZED_KEYS:-"${HOME}/.ssh/authorized_keys"}
140 HASH_KNOWN_HOSTS=${HASH_KNOWN_HOSTS:-"true"}
144 # make sure gpg home exists with proper permissions
145 mkdir -p -m 0700 "$GNUPGHOME"
147 # make sure the user monkeysphere home directory exists
148 mkdir -p -m 0700 "$MS_HOME"
149 touch "$AUTHORIZED_USER_IDS"
150 touch "$AUTHORIZED_KEYS"
153 'update-known_hosts'|'update-known-hosts'|'k')
156 # touch the known_hosts file to make sure it exists
157 # ssh-keygen complains if it doesn't exist
160 # if hosts are specified on the command line, process just
163 update_known_hosts "$@" || ERR=1
165 # otherwise, if no hosts are specified, process every host
166 # in the user's known_hosts file
168 if [ ! -s "$KNOWN_HOSTS" ] ; then
169 failure "known_hosts file '$KNOWN_HOSTS' is empty."
171 log "processing known_hosts file..."
172 process_known_hosts || ERR=1
175 log "known_hosts file updated."
178 'update-authorized_keys'|'update-authorized-keys'|'a')
179 MODE='authorized_keys'
181 # fail if the authorized_user_ids file is empty
182 if [ ! -s "$AUTHORIZED_USER_IDS" ] ; then
183 failure "$AUTHORIZED_USER_IDS is empty."
186 # process authorized_user_ids file
187 log "processing authorized_user_ids file..."
188 process_authorized_user_ids "$AUTHORIZED_USER_IDS" || ERR=1
189 log "authorized_keys file updated."
194 if [ -z "$keyID" ] ; then
195 failure "You must specify the key ID of your primary key."
205 failure "Unknown command: '$COMMAND'
206 Type '$PGRM help' for usage."