# -*-shell-script-*-
# This should be sourced by bash (though we welcome changes to make it POSIX sh compliant)

# Monkeysphere import-subkey subcommand
#
# The monkeysphere scripts are written by:
# Jameson Rollins <jrollins@finestructure.net>
# Jamie McClelland <jm@mayfirst.org>
# Daniel Kahn Gillmor <dkg@fifthhorseman.net>
#
# They are Copyright 2008-2009, and are all released under the GPL,
# version 3 or later.

# import an existing ssh key as a gpg subkey

import_subkey() {
    local keyFile="~/.ssh/id_rsa"
    local keyExpire
    local keyID
    local gpgOut
    local userID

    # get options
    while true ; do
	case "$1" in
	    -f|--keyfile)
		keyFile="$2"
		shift 2
		;;
	    -e|--expire)
		keyExpire="$2"
		shift 2
		;;
	    *)
		if [ "$(echo "$1" | cut -c 1)" = '-' ] ; then
		    failure "Unknown option '$1'.
Type '$PGRM help' for usage."
		fi
		break
		;;
	esac
    done

    log verbose "importing ssh key..."
    fifoDir=$(mktemp -d ${TMPDIR:-/tmp}/tmp.XXXXXXXXXX)
    (umask 077 && mkfifo "$fifoDir/pass")
    ssh2openpgp | gpg --passphrase-fd 3 3< "$fifoDir/pass" --expert --command-fd 0 --import &

    passphrase_prompt  "Please enter your passphrase for $keyID: " "$fifoDir/pass"

    rm -rf "$fifoDir"
    wait
    log verbose "done."
}