EOF
}
+# function to run command as monkeysphere user
su_monkeysphere_user() {
- su "$MONKEYSPHERE_USER" -c "$@"
+ # if the current user is the monkeysphere user, then just eval
+ # command
+ if [ $(id -un) = "$MONKEYSPHERE_USER" ] ; then
+ eval "$@"
+
+ # otherwise su command as monkeysphere user
+ else
+ su "$MONKEYSPHERE_USER" -c "$@"
+ fi
}
# function to interact with the host gnupg keyring
continue
fi
- # set authorized_user_ids and raw authorized_keys variables,
- # translating ssh-style path variables
- authorizedUserIDs=$(translate_ssh_variables "$uname" "$AUTHORIZED_USER_IDS")
- rawAuthorizedKeys=$(translate_ssh_variables "$uname" "$RAW_AUTHORIZED_KEYS")
-
- # if neither is found, skip user
- if [ ! -s "$authorizedUserIDs" ] ; then
- if [ "$rawAuthorizedKeys" = '-' -o ! -s "$rawAuthorizedKeys" ] ; then
- continue
- fi
- fi
-
log verbose "----- user: $uname -----"
- # exit if the authorized_user_ids file is empty
- if ! check_key_file_permissions "$uname" "$AUTHORIZED_USER_IDS" ; then
- log error "Improper permissions on path '$AUTHORIZED_USER_IDS'."
- continue
- fi
-
- # check permissions on the authorized_keys file path
- if ! check_key_file_permissions "$uname" "$RAW_AUTHORIZED_KEYS" ; then
- log error "Improper permissions on path '$RAW_AUTHORIZED_KEYS'."
- continue
- fi
-
# make temporary directory
TMPLOC=$(mktemp -d ${TMPDIR:-/tmp}/tmp.XXXXXXXXXX)
chmod 0600 "$TMP_AUTHORIZED_USER_IDS"
chown -R "$MONKEYSPHERE_USER" "$TMPLOC"
- # if the authorized_user_ids file exists...
+ # process authorized_user_ids file
+ # translating ssh-style path variables
+ authorizedUserIDs=$(translate_ssh_variables "$uname" "$AUTHORIZED_USER_IDS")
if [ -s "$authorizedUserIDs" ] ; then
- # copy user authorized_user_ids file to temporary
- # location
- cat "$authorizedUserIDs" > "$TMP_AUTHORIZED_USER_IDS"
-
- # export needed variables
- export AUTHORIZED_KEYS
- export TMP_AUTHORIZED_USER_IDS
-
- # process authorized_user_ids file, as monkeysphere
- # user
- su_monkeysphere_user \
- ". ${SYSSHAREDIR}/common; process_authorized_user_ids $TMP_AUTHORIZED_USER_IDS"
- RETURN="$?"
+ # check permissions on the authorized_user_ids file path
+ if check_key_file_permissions "$uname" "$authorizedUserIDs" ; then
+ # copy user authorized_user_ids file to temporary
+ # location
+ cat "$authorizedUserIDs" > "$TMP_AUTHORIZED_USER_IDS"
+
+ # export needed variables
+ export AUTHORIZED_KEYS
+ export TMP_AUTHORIZED_USER_IDS
+
+ # process authorized_user_ids file, as monkeysphere
+ # user
+ su_monkeysphere_user \
+ ". ${SYSSHAREDIR}/common; process_authorized_user_ids $TMP_AUTHORIZED_USER_IDS"
+ RETURN="$?"
+ else
+ log error "Improper permissions on path '$AUTHORIZED_USER_IDS'."
+ fi
fi
- # add user-controlled authorized_keys file path if specified
- if [ "$rawAuthorizedKeys" != '-' -a -s "$rawAuthorizedKeys" ] ; then
- log verbose "adding raw authorized_keys file... "
- cat "$rawAuthorizedKeys" >> "$AUTHORIZED_KEYS"
+ # add user-controlled authorized_keys file if specified
+ # translate ssh-style path variables
+ rawAuthorizedKeys=$(translate_ssh_variables "$uname" "$RAW_AUTHORIZED_KEYS")
+ if [ "$rawAuthorizedKeys" -a -s "$rawAuthorizedKeys" ] ; then
+ # check permissions on the authorized_keys file path
+ if check_key_file_permissions "$uname" "$rawAuthorizedKeys" ; then
+ log verbose "adding raw authorized_keys file... "
+ cat "$rawAuthorizedKeys" >> "$AUTHORIZED_KEYS"
+ else
+ log error "Improper permissions on path '$RAW_AUTHORIZED_KEYS'. Not added to authorized_keys file."
+ fi
fi
- # openssh appears to check the contents of the
- # authorized_keys file as the user in question, so the
- # file must be readable by that user at least.
- # FIXME: is there a better way to do this?
- chown root "$AUTHORIZED_KEYS"
- chgrp $(getent passwd "$uname" | cut -f4 -d:) "$AUTHORIZED_KEYS"
- chmod g+r "$AUTHORIZED_KEYS"
+ # move the new authorized_keys file into place
+ if [ -s "$AUTHORIZED_KEYS" ] ; then
+ # openssh appears to check the contents of the
+ # authorized_keys file as the user in question, so the
+ # file must be readable by that user at least.
+ # FIXME: is there a better way to do this?
+ chown root "$AUTHORIZED_KEYS"
+ chgrp $(getent passwd "$uname" | cut -f4 -d:) "$AUTHORIZED_KEYS"
+ chmod g+r "$AUTHORIZED_KEYS"
+
+ mv -f "$AUTHORIZED_KEYS" "${SYSDATADIR}/authorized_keys/${uname}"
+ else
+ rm -f "${SYSDATADIR}/authorized_keys/${uname}"
+ fi
- # move the resulting authorized_keys file into place
- mv -f "$AUTHORIZED_KEYS" "${SYSDATADIR}/authorized_keys/${uname}"
+ # unset the trap
+ trap - EXIT
# destroy temporary directory
rm -rf "$TMPLOC"
# FIXME: look to see that the ownertrust rules are set properly on the
# authentication keyring
-# FIXME: make sure that at least one identity certifier exists
+# FIXME: make sure that at least one identity certifier exists
# FIXME: look at the timestamps on the monkeysphere-generated
# authorized_keys files -- warn if they seem out-of-date.
+# FIXME: check for a cronjob that updates monkeysphere-generated
+# authorized_keys?
+
echo
echo "Checking for MonkeySphere-enabled public-key authentication for users ..."
# Ensure that User ID authentication is enabled:
# set empty config variable with ones from the environment, or with
# defaults
LOG_LEVEL=${MONKEYSPHERE_LOG_LEVEL:=${LOG_LEVEL:="INFO"}}
-KEYSERVER=${MONKEYSPHERE_KEYSERVER:=${KEYSERVER:="subkeys.pgp.net"}}
+KEYSERVER=${MONKEYSPHERE_KEYSERVER:=${KEYSERVER:="pool.sks-keyservers.net"}}
AUTHORIZED_USER_IDS=${MONKEYSPHERE_AUTHORIZED_USER_IDS:=${AUTHORIZED_USER_IDS:="%h/.monkeysphere/authorized_user_ids"}}
RAW_AUTHORIZED_KEYS=${MONKEYSPHERE_RAW_AUTHORIZED_KEYS:=${RAW_AUTHORIZED_KEYS:="%h/.ssh/authorized_keys"}}
MONKEYSPHERE_USER=${MONKEYSPHERE_MONKEYSPHERE_USER:=${MONKEYSPHERE_USER:="monkeysphere"}}
projects / monkeysphere.git / blobdiff