certbot/certbot-apache/certbot_apache/tests/http_01_test.py
Joona Hoikkala f6219ddf19 Enable Apache VirtualHost for HTTP challenge validation if not enabled already (#6268)
If user provides a custom --apache-vhost-root path that's not parsed by Apache per default, Certbot fails the challenge validation. While the VirtualHost on custom path is correctly found, and edited, it's still not seen by Apache. This PR adds a temporary Include directive to the root Apache configuration when writing the challenge tokens to the VirtualHost.
2018-08-01 12:00:47 -07:00

222 lines
8.8 KiB
Python

"""Test for certbot_apache.http_01."""
import mock
import os
import unittest
from acme import challenges
from acme.magic_typing import List # pylint: disable=unused-import, no-name-in-module
from certbot import achallenges
from certbot import errors
from certbot.tests import acme_util
from certbot_apache.parser import get_aug_path
from certbot_apache.tests import util
NUM_ACHALLS = 3
class ApacheHttp01Test(util.ApacheTest):
"""Test for certbot_apache.http_01.ApacheHttp01."""
def setUp(self, *args, **kwargs):
super(ApacheHttp01Test, self).setUp(*args, **kwargs)
self.account_key = self.rsa512jwk
self.achalls = [] # type: List[achallenges.KeyAuthorizationAnnotatedChallenge]
vh_truth = util.get_vh_truth(
self.temp_dir, "debian_apache_2_4/multiple_vhosts")
# Takes the vhosts for encryption-example.demo, certbot.demo, and
# vhost.in.rootconf
self.vhosts = [vh_truth[0], vh_truth[3], vh_truth[10]]
for i in range(NUM_ACHALLS):
self.achalls.append(
achallenges.KeyAuthorizationAnnotatedChallenge(
challb=acme_util.chall_to_challb(
challenges.HTTP01(token=((chr(ord('a') + i).encode() * 16))),
"pending"),
domain=self.vhosts[i].name, account_key=self.account_key))
modules = ["rewrite", "authz_core", "authz_host"]
for mod in modules:
self.config.parser.modules.add("mod_{0}.c".format(mod))
self.config.parser.modules.add(mod + "_module")
from certbot_apache.http_01 import ApacheHttp01
self.http = ApacheHttp01(self.config)
def test_empty_perform(self):
self.assertFalse(self.http.perform())
@mock.patch("certbot_apache.configurator.ApacheConfigurator.enable_mod")
def test_enable_modules_apache_2_2(self, mock_enmod):
self.config.version = (2, 2)
self.config.parser.modules.remove("authz_host_module")
self.config.parser.modules.remove("mod_authz_host.c")
enmod_calls = self.common_enable_modules_test(mock_enmod)
self.assertEqual(enmod_calls[0][0][0], "authz_host")
@mock.patch("certbot_apache.configurator.ApacheConfigurator.enable_mod")
def test_enable_modules_apache_2_4(self, mock_enmod):
self.config.parser.modules.remove("authz_core_module")
self.config.parser.modules.remove("mod_authz_core.c")
enmod_calls = self.common_enable_modules_test(mock_enmod)
self.assertEqual(enmod_calls[0][0][0], "authz_core")
def common_enable_modules_test(self, mock_enmod):
"""Tests enabling mod_rewrite and other modules."""
self.config.parser.modules.remove("rewrite_module")
self.config.parser.modules.remove("mod_rewrite.c")
self.http.prepare_http01_modules()
self.assertTrue(mock_enmod.called)
calls = mock_enmod.call_args_list
other_calls = []
for call in calls:
if "rewrite" != call[0][0]:
other_calls.append(call)
# If these lists are equal, we never enabled mod_rewrite
self.assertNotEqual(calls, other_calls)
return other_calls
def test_same_vhost(self):
vhost = next(v for v in self.config.vhosts if v.name == "certbot.demo")
achalls = [
achallenges.KeyAuthorizationAnnotatedChallenge(
challb=acme_util.chall_to_challb(
challenges.HTTP01(token=((b'a' * 16))),
"pending"),
domain=vhost.name, account_key=self.account_key),
achallenges.KeyAuthorizationAnnotatedChallenge(
challb=acme_util.chall_to_challb(
challenges.HTTP01(token=((b'b' * 16))),
"pending"),
domain=next(iter(vhost.aliases)), account_key=self.account_key)
]
self.common_perform_test(achalls, [vhost])
def test_anonymous_vhost(self):
vhosts = [v for v in self.config.vhosts if not v.ssl]
achalls = [
achallenges.KeyAuthorizationAnnotatedChallenge(
challb=acme_util.chall_to_challb(
challenges.HTTP01(token=((b'a' * 16))),
"pending"),
domain="something.nonexistent", account_key=self.account_key)]
self.common_perform_test(achalls, vhosts)
def test_no_vhost(self):
for achall in self.achalls:
self.http.add_chall(achall)
self.config.config.http01_port = 12345
self.assertRaises(errors.PluginError, self.http.perform)
def test_perform_1_achall_apache_2_2(self):
self.combinations_perform_test(num_achalls=1, minor_version=2)
def test_perform_1_achall_apache_2_4(self):
self.combinations_perform_test(num_achalls=1, minor_version=4)
def test_perform_2_achall_apache_2_2(self):
self.combinations_perform_test(num_achalls=2, minor_version=2)
def test_perform_2_achall_apache_2_4(self):
self.combinations_perform_test(num_achalls=2, minor_version=4)
def test_perform_3_achall_apache_2_2(self):
self.combinations_perform_test(num_achalls=3, minor_version=2)
def test_perform_3_achall_apache_2_4(self):
self.combinations_perform_test(num_achalls=3, minor_version=4)
def test_activate_disabled_vhost(self):
vhosts = [v for v in self.config.vhosts if v.name == "certbot.demo"]
achalls = [
achallenges.KeyAuthorizationAnnotatedChallenge(
challb=acme_util.chall_to_challb(
challenges.HTTP01(token=((b'a' * 16))),
"pending"),
domain="certbot.demo", account_key=self.account_key)]
vhosts[0].enabled = False
self.common_perform_test(achalls, vhosts)
matches = self.config.parser.find_dir(
"Include", vhosts[0].filep,
get_aug_path(self.config.parser.loc["default"]))
self.assertEqual(len(matches), 1)
def combinations_perform_test(self, num_achalls, minor_version):
"""Test perform with the given achall count and Apache version."""
achalls = self.achalls[:num_achalls]
vhosts = self.vhosts[:num_achalls]
self.config.version = (2, minor_version)
self.common_perform_test(achalls, vhosts)
def common_perform_test(self, achalls, vhosts):
"""Tests perform with the given achalls."""
challenge_dir = self.http.challenge_dir
self.assertFalse(os.path.exists(challenge_dir))
for achall in achalls:
self.http.add_chall(achall)
expected_response = [
achall.response(self.account_key) for achall in achalls]
self.assertEqual(self.http.perform(), expected_response)
self.assertTrue(os.path.isdir(self.http.challenge_dir))
self._has_min_permissions(self.http.challenge_dir, 0o755)
self._test_challenge_conf()
for achall in achalls:
self._test_challenge_file(achall)
for vhost in vhosts:
if not vhost.ssl:
matches = self.config.parser.find_dir("Include",
self.http.challenge_conf_pre,
vhost.path)
self.assertEqual(len(matches), 1)
matches = self.config.parser.find_dir("Include",
self.http.challenge_conf_post,
vhost.path)
self.assertEqual(len(matches), 1)
self.assertTrue(os.path.exists(challenge_dir))
def _test_challenge_conf(self):
with open(self.http.challenge_conf_pre) as f:
pre_conf_contents = f.read()
with open(self.http.challenge_conf_post) as f:
post_conf_contents = f.read()
self.assertTrue("RewriteEngine on" in pre_conf_contents)
self.assertTrue("RewriteRule" in pre_conf_contents)
self.assertTrue(self.http.challenge_dir in post_conf_contents)
if self.config.version < (2, 4):
self.assertTrue("Allow from all" in post_conf_contents)
else:
self.assertTrue("Require all granted" in post_conf_contents)
def _test_challenge_file(self, achall):
name = os.path.join(self.http.challenge_dir, achall.chall.encode("token"))
validation = achall.validation(self.account_key)
self._has_min_permissions(name, 0o644)
with open(name, 'rb') as f:
self.assertEqual(f.read(), validation.encode())
def _has_min_permissions(self, path, min_mode):
"""Tests the given file has at least the permissions in mode."""
st_mode = os.stat(path).st_mode
self.assertEqual(st_mode, st_mode | min_mode)
if __name__ == "__main__":
unittest.main() # pragma: no cover