diff options
Diffstat (limited to 'src/monkeysphere')
| -rwxr-xr-x | src/monkeysphere | 188 |
1 files changed, 188 insertions, 0 deletions
diff --git a/src/monkeysphere b/src/monkeysphere new file mode 100755 index 0000000..58f0fdc --- /dev/null +++ b/src/monkeysphere @@ -0,0 +1,188 @@ +#!/bin/bash + +# monkeysphere: MonkeySphere client tool +# +# The monkeysphere scripts are written by: +# Jameson Rollins <jrollins@fifthhorseman.net> +# +# They are Copyright 2008, and are all released under the GPL, version 3 +# or later. + +######################################################################## +PGRM=$(basename $0) + +SHAREDIR=${SHAREDIR:-"/usr/share/monkeysphere"} +export SHAREDIR +. "${SHAREDIR}/common" + +GLOBAL_CONFIG=${GLOBAL_CONFIG:-"${ETC}/monkeysphere.conf"} +[ -r "$GLOBAL_CONFIG" ] && . "$GLOBAL_CONFIG" + +# date in UTF format if needed +DATE=$(date -u '+%FT%T') + +# unset some environment variables that could screw things up +GREP_OPTIONS= + +######################################################################## +# FUNCTIONS +######################################################################## + +usage() { +cat <<EOF +usage: $PGRM <subcommand> [args] +MonkeySphere client tool. + +subcommands: + update-known_hosts (k) [HOST]... update known_hosts file + update-authorized_keys (a) update authorized_keys file + gen-subkey (g) KEYID generate an 'a' capable subkey + help (h,?) this help + +EOF +} + +# generate a subkey with the 'a' usage flags set +# FIXME: this needs some tweaking to clean it up +gen_subkey(){ + local keyID + local gpgOut + local userID + + keyID="$1" + + gpgOut=$(gpg --quiet --fixed-list-mode --list-keys --with-colons \ + "$keyID" 2> /dev/null) + + # return 1 if there only "tru" lines are output from gpg + if [ -z "$(echo "$gpgOut" | grep -v '^tru:')" ] ; then + failure "Key ID '$keyID' not found." + fi + + # set subkey defaults + SUBKEY_TYPE=${SUBKEY_TYPE:-"RSA"} + #SUBKEY_LENGTH=${SUBKEY_LENGTH:-"2048"} + SUBKEY_USAGE=${SUBKEY_USAGE:-"auth"} + SUBKEY_EXPIRE=${SUBKEY_EXPIRE:-"0"} + cat <<EOF +Please specify how long the key should be valid. + 0 = key does not expire + <n> = key expires in n days + <n>w = key expires in n weeks + <n>m = key expires in n months + <n>y = key expires in n years +EOF + read -p "Key is valid for? ($SUBKEY_EXPIRE) " SUBKEY_EXPIRE; SUBKEY_EXPIRE=${SUBKEY_EXPIRE:-"0"} + + # generate the list of commands that will be passed to edit-key + editCommands=$(cat <<EOF +addkey +7 +S +E +A +Q +$SUBKEY_LENGTH +$SUBKEY_EXPIRE +save +EOF +) + + log "generating subkey..." + echo "$editCommands" | gpg --expert --command-fd 0 --edit-key "$keyID" + log "done." +} + +######################################################################## +# MAIN +######################################################################## + +COMMAND="$1" +[ "$COMMAND" ] || failure "Type '$PGRM help' for usage." +shift + +# set ms home directory +MS_HOME=${MS_HOME:-"${HOME}/.config/monkeysphere"} + +# load configuration file +MS_CONF=${MS_CONF:-"${MS_HOME}/monkeysphere.conf"} +[ -e "$MS_CONF" ] && . "$MS_CONF" + +# set empty config variable with defaults +AUTHORIZED_USER_IDS=${AUTHORIZED_USER_IDS:-"${MS_HOME}/authorized_user_ids"} +GNUPGHOME=${GNUPGHOME:-"${HOME}/.gnupg"} +KEYSERVER=${KEYSERVER:-"subkeys.pgp.net"} +CHECK_KEYSERVER=${CHECK_KEYSERVER:="true"} +REQUIRED_HOST_KEY_CAPABILITY=${REQUIRED_HOST_KEY_CAPABILITY:-"a"} +REQUIRED_USER_KEY_CAPABILITY=${REQUIRED_USER_KEY_CAPABILITY:-"a"} +KNOWN_HOSTS=${KNOWN_HOSTS:-"${HOME}/.ssh/known_hosts"} +AUTHORIZED_KEYS=${AUTHORIZED_KEYS:-"${HOME}/.ssh/authorized_keys"} +HASH_KNOWN_HOSTS=${HASH_KNOWN_HOSTS:-"true"} + +export GNUPGHOME + +# make sure gpg home exists with proper permissions +mkdir -p -m 0700 "$GNUPGHOME" + +# make sure the user monkeysphere home directory exists +mkdir -p -m 0700 "$MS_HOME" +touch "$AUTHORIZED_USER_IDS" +touch "$AUTHORIZED_KEYS" + +case $COMMAND in + 'update-known_hosts'|'update-known-hosts'|'k') + MODE='known_hosts' + + # touch the known_hosts file to make sure it exists + # ssh-keygen complains if it doesn't exist + touch "$KNOWN_HOSTS" + + # if hosts are specified on the command line, process just + # those hosts + if [ "$1" ] ; then + process_hosts_known_hosts "$@" + + # otherwise, if no hosts are specified, process every host + # in the user's known_hosts file + else + if [ ! -s "$KNOWN_HOSTS" ] ; then + failure "known_hosts file '$KNOWN_HOSTS' is empty." + fi + log "processing known_hosts file..." + process_known_hosts + fi + + log "known_hosts file updated." + ;; + + 'update-authorized_keys'|'update-authorized-keys'|'a') + MODE='authorized_keys' + + # fail if the authorized_user_ids file is empty + if [ ! -s "$AUTHORIZED_USER_IDS" ] ; then + failure "$AUTHORIZED_USER_IDS is empty." + fi + + # process authorized_user_ids file + log "processing authorized_user_ids file..." + process_authorized_user_ids "$AUTHORIZED_USER_IDS" + log "authorized_keys file updated." + ;; + + 'gen-subkey'|'g') + keyID="$1" + if [ -z "$keyID" ] ; then + failure "You must specify the key ID of your primary key." + fi + gen_subkey "$keyID" + ;; + + 'help'|'h'|'?') + usage + ;; + + *) + failure "Unknown command: '$COMMAND' +Type '$PGRM help' for usage." + ;; +esac |