#!/usr/bin/python
# Show IPSECKEY records generated by libreswan IPsec
# might work on some versions of older openswan as well
#
# Copyright 2015 Paul Wouters <pwouters@redhat.com>
# License: GNU GENERAL PUBLIC LICENSE Version 2 or later

VERSION = "2.6"

import os
import sys
import subprocess
import optparse
import base64
import time
import hashlib

ipsec = "/usr/sbin/ipsec"
if not os.path.isfile(ipsec):
	ipsec = "/usr/local/sbin/ipsec"
if not os.path.isfile(ipsec):
	print >> sys.stderr, "ipseckey: ipsec command not found (not a libreswan or openswan IPsec servers?)"
	sys.exit(1)

def show_version():
	print >> sys.stderr, "sshfp version: " + VERSION

def main():

	parser = optparse.OptionParser()
	parser.add_option("-v", "--version",
			action="store_true",
			dest="version",
			help="print version information and exit")
	(options, args) = parser.parse_args()

	if options.version:
		show_version()
		sys.exit(0)

	if os.geteuid() != 0:
		print >> sys.stderr, "ipseckey: root access is needed to read the IPsec NSS database for the public key"
		sys.exit(2)

        cmd = [ipsec, "showhostkey", "--ipseckey"]
        process = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
        (stdout, stderr) = process.communicate()
        print stdout

if __name__ == "__main__":
	main()
