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acertmgr/modes/webdir.py

50 lines
1.8 KiB
Python

#!/usr/bin/env python
# -*- coding: utf-8 -*-
# web - http based challenge handler
# Copyright (c) Rudolf Mayerhofer, 2019.
# available under the ISC license, see LICENSE
import datetime
import os
from modes.abstract import AbstractChallengeHandler
import datetime
try:
from urllib.request import urlopen # Python 3
except ImportError:
from urllib2 import urlopen # Python 2
class ChallengeHandler(AbstractChallengeHandler):
def __init__(self, config):
AbstractChallengeHandler.__init__(self, config)
self.challenge_directory = config.get("webdir", "/var/www/acme-challenge/")
if not os.path.isdir(self.challenge_directory):
raise FileNotFoundError("Challenge directory (%s) does not exist!" % self.challenge_directory)
@staticmethod
def get_challenge_type():
return "http-01"
def create_challenge(self, domain, thumbprint, token):
keyauthorization = "{0}.{1}".format(token, thumbprint)
wellknown_path = os.path.join(self.challenge_directory, token)
with open(wellknown_path, "w") as wellknown_file:
wellknown_file.write(keyauthorization)
# check that the file is in place
wellknown_url = "http://{0}/.well-known/acme-challenge/{1}".format(domain, token)
try:
resp = urlopen(wellknown_url)
resp_data = resp.read().decode('utf8').strip()
assert resp_data == keyauthorization
except (IOError, AssertionError):
os.remove(wellknown_path)
raise ValueError("Wrote file to {0}, but couldn't download {1}".format(
wellknown_path, wellknown_url))
return datetime.datetime.now()
def destroy_challenge(self, domain, thumbprint, token):
os.remove(os.path.join(self.challenge_directory, token))