From 62addd4e105ac153eeb84a8928f1edf178c93bc8 Mon Sep 17 00:00:00 2001
From: Markus Hauschild <markus@moepman.eu>
Date: Sun, 10 Jan 2016 15:00:43 +0100
Subject: [PATCH] Initial commit

---
 LICENSE     | 13 ++++++++
 acertmgr.py | 85 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 98 insertions(+)
 create mode 100644 LICENSE
 create mode 100755 acertmgr.py

diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..e8367cf
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,13 @@
+Copyright (c) Markus Hauschild, 2016.
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/acertmgr.py b/acertmgr.py
new file mode 100755
index 0000000..62f2d04
--- /dev/null
+++ b/acertmgr.py
@@ -0,0 +1,85 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# Automated Certificate Manager using ACME
+# Copyright (c) Markus Hauschild, 2016.
+
+
+import datetime
+import dateutil
+import dateutil.parser
+import dateutil.relativedelta
+import os
+import re
+import subprocess
+import yaml
+
+
+ACME_DIR="/etc/acme/"
+ACME_CONF=ACME_DIR + "acme.conf"
+ACME_CONFD=ACME_DIR + "domains.d/"
+
+
+def cert_isValid(domain, settings):
+	crt_file = ACME_DIR + domain + ".crt"
+	if not os.path.isfile(crt_file):
+		return False
+	else:
+		# check validity using OpenSSL
+		vc = subprocess.check_output(['openssl', 'x509', '-in', crt_file, '-noout', '-dates'])
+
+		m = re.search("notBefore=(.+)", vc)
+		if m:
+			valid_from = dateutil.parser.parse(m.group(1), ignoretz=True)
+		else:
+			raise "No notBefore date found, something seems wrong!"
+
+		m = re.search("notAfter=(.+)", vc)
+		if m:
+			valid_to = dateutil.parser.parse(m.group(1), ignoretz=True)
+		else:
+			raise "No notAfter date found, something seems wrong!"
+
+		if valid_from > datetime.datetime.now():
+			raise "A Certificate seems to be from the future, something seems wrong!"
+
+		if valid_to < datetime.datetime.now() + dateutil.relativedelta.relativedelta(days=+15):
+			return False
+
+		return True
+
+
+def cert_get(domain, settings):
+	key_file = ACME_DIR + "server.key"
+	csr_file = "/tmp/%s.csr" % domain
+	print("Getting certificate for %s." % domain)
+
+	cr = subprocess.check_output(['openssl', 'req', '-new', '-sha256', '-key', key_file, '-out', csr_file, '-subj', '/CN=%s' % domain])
+
+	# TODO run acme_tiny
+	# TODO check if resulting certificate is valid
+	# TODO copy cert w/ correct permissions
+	# TODO restart/reload service(s)
+
+
+if __name__ == "__main__":
+	# load configuration
+	with open(ACME_CONF) as config_fd:
+		config = yaml.load(config_fd)
+		if not config:
+			config = {}
+		if 'domains' not in config:
+			config['domains'] = {}
+	for config_file in os.listdir(ACME_CONFD):
+		if config_file.endswith(".conf"):
+			with open(ACME_CONFD + config_file) as config_fd:
+				config['domains'].update(yaml.load(config_fd))
+	#print(str(config))
+
+	# fill up configuration with defaults
+	# TODO
+
+	# check certificate validity
+	for domain in config['domains']:
+		if not cert_isValid(domain, config['domains'][domain]):
+			cert_get(domain, config['domains'][domain])