+++ /dev/null
-#!/usr/bin/python3
-#
-#
-
-from __future__ import print_function
-
-import sys
-import argparse
-import logging
-
-from socket import socket, AF_INET6, AF_INET, create_connection
-from ssl import SSLError, CertificateError, SSLContext
-from ssl import PROTOCOL_TLSv1_2, CERT_REQUIRED
-
-from unbound import ub_ctx
-
-from check_dane.resolve import Resolver, ResolverException, srv_lookup
-from check_dane.tlsa import verify_tlsa_record
-from check_dane.cert import verify_certificate, add_certificate_options
-
-XMPP_OPEN = ("<stream:stream xmlns='jabber:{0}' xmlns:stream='"
- "http://etherx.jabber.org/streams' xmlns:tls='http://www.ietf.org/rfc/"
- "rfc2595.txt' to='{1}' xml:lang='en' version='1.0'>")
-XMPP_CLOSE = "</stream:stream>"
-XMPP_STARTTLS = "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>"
-
-
-def init_connection(sslcontext, args, family, endpoint, metadata):
- host, _ = endpoint
- logging.debug("Connecting to %s", endpoint)
-
- connection = socket(family=family)
- connection.connect(endpoint)
-
- connection.sendall(XMPP_OPEN.format(metadata['type'], args.Host).encode())
- answer = connection.recv(4096)
- logging.debug(answer)
-
- if not '</stream:features>' in answer:
- answer = connection.recv(4096)
- logging.debug(answer)
-
- connection.sendall(XMPP_STARTTLS.encode())
- answer = connection.recv(4096)
- logging.debug(answer)
-
- connection = sslcontext.wrap_socket(connection, server_hostname=host)
- connection.do_handshake()
-
- connection.sendall(XMPP_OPEN.format(metadata['type'], args.Host).encode())
- answer = connection.recv(4096)
- logging.debug(answer)
-
- if not '</stream:features>' in answer:
- answer = connection.recv(4096)
- logging.debug(answer)
-
- return connection
-
-
-def close_connection(connection):
- connection.send(XMPP_CLOSE.encode())
- answer = connection.recv(512)
- logging.debug(answer)
-
-
-def init(args):
- sslcontext = SSLContext(PROTOCOL_TLSv1_2)
- sslcontext.verify_mode = CERT_REQUIRED
- sslcontext.load_verify_locations(args.castore)
-
- resolver = ub_ctx()
- resolver.add_ta_file(args.ancor)
-
- return sslcontext, resolver
-
-
-def main():
- logging.basicConfig(format='%(levelname)5s %(message)s')
- parser = argparse.ArgumentParser()
- parser.add_argument("Host")
-
- parser.add_argument("--verbose", action="store_true")
- parser.add_argument("--quiet", action="store_true")
- # parser.add_argument("-p", "--port",
- # action="store", type=int, default=0,
- # help="XMPP port")
- group = parser.add_mutually_exclusive_group()
- group.add_argument("--s2s", action="store_true",
- help="Only check server-to-server connections")
- group.add_argument("--c2s", action="store_true",
- help="Only check client-to-server connections")
- # parser.add_argument("--ssl",
- # action="store_true",
- # help="Use direct TLS connection instead of starttls (default: disabled)")
- parser.add_argument("--check-dane",
- action="store_false",
- help="Verify presented certificate via DANE (default: enabled)")
- parser.add_argument("--check-ca",
- action="store_false",
- help="Verify presented certificate via the CA system (default: enabled)")
- parser.add_argument("--check-expire",
- action="store_false",
- help="Verify presented certificate for expiration (default: enabled)")
-
- parser.add_argument("-a", "--ancor",
- action="store", type=str, default="/etc/unbound/root.key",
- help="DNSSEC root ancor")
- parser.add_argument("--castore", action="store", type=str,
- default="/etc/ssl/certs/ca-certificates.crt",
- help="ca certificate bundle")
-
- group = parser.add_mutually_exclusive_group()
- group.add_argument("-6", "--6", action="store_true", dest="use6", help="check via IPv6 only")
- group.add_argument("-4", "--4", action="store_true", dest="use4", help="check via IPv4 only")
- group.add_argument("--64", action="store_false", dest="use64", help="check via IPv4 and IPv6 (default)")
-
- add_certificate_options(parser)
-
- args = parser.parse_args()
-
- if args.verbose:
- logging.getLogger().setLevel(logging.DEBUG)
- elif args.quiet:
- logging.getLogger().setLevel(logging.WARNING)
- else:
- logging.getLogger().setLevel(logging.INFO)
-
- host = args.Host.encode('idna').decode()
-
- sslcontext, resolver = init(args)
-
- if args.use6:
- afamilies = [AF_INET6]
- elif args.use4:
- afamilies = [AF_INET6]
- else:
- afamilies = [AF_INET, AF_INET6]
-
- xresolver = Resolver(args.ancor)
- endpoints = []
- if not args.s2s:
- for endpoint, meta in srv_lookup("_xmpp-client._tcp.%s" % host, xresolver):
- meta['type'] = 'client'
- endpoints.append((endpoint, meta))
- if not args.c2s:
- for endpoint, meta in srv_lookup("_xmpp-server._tcp.%s" % host, xresolver):
- meta['type'] = 'server'
- endpoints.append((endpoint, meta))
-
- retval = 0
- for afamily in afamilies:
- for endpoint, metadata in endpoints:
- host, port = endpoint
- try:
- connection = init_connection(sslcontext, args, afamily, endpoint, metadata)
- except:
- logging.exception("Connection refused")
- return 2
-
- nretval = verify_certificate(connection.getpeercert(), args)
- retval = max(retval, nretval)
- nretval = verify_tlsa_record(resolver, "_%d._tcp.%s" % (port, host),
- connection.getpeercert(binary_form=True))
- retval = max(retval, nretval)
-
- close_connection(connection)
-
- return retval
-
-
-if __name__ == '__main__':
- sys.exit(main())
projects / dane-monitoring-plugins.git / blobdiff