certbot/certbot-apache/certbot_apache/_internal/override_fedora.py
ohemorange 9e3c348dff
Disable TLS session tickets in Apache (#7771)
Fixes #7350.

This PR changes the parsed modules from a `set` to a `dict`, with the filepath argument as the value. Accordingly, after calling `enable_mod` to enable `ssl_module`, modules now need to be re-parsed, so call `reset_modules`.

* Add mechanism for selecting apache config file, based on work done in #7191.

* Check OpenSSL version

* Remove os imports

* debian override still needs os

* Reformat remaining apache tests with modules dict syntax

* Clean up more apache tests

* Switch from property to method for openssl and add tests for coverage.

* Sometimes the dict location will be None in which case we should in fact return None

* warn thoroughly and consistently in openssl_version function

* update tests for new warnings

* read file as bytes, and factor out the open for testing

* normalize ssl_module_location path to account for being relative to server root

* Use byte literals in a python 2 and 3 compatible way

* string does need to be a literal

* patch builtins open

* add debug, remove space

* Add test to check if OpenSSL detection is working on different systems

* fix relative test location for cwd

* put </IfModule> on its own line in test case

* Revert test file to status in master.

* Call augeas load before reparsing modules to pick up the changes

* fix grep, tail, and mod_ssl location on centos

* strip the trailing whitespace from fedora

* just use LooseVersion in test

* call apache2ctl on debian systems

* Use sudo for apache2ctl command

* add check to make sure we're getting a version

* Add boolean so we don't warn on debian/ubuntu before trying to enable mod_ssl

* Reduce warnings while testing by setting mock _openssl_version.

* Make sure we're not throwing away any unwritten changes to the config

* test last warning case for coverage

* text changes for clarity
2020-03-23 16:49:52 -07:00

93 lines
3.5 KiB
Python

""" Distribution specific override class for Fedora 29+ """
import zope.interface
from certbot import errors
from certbot import interfaces
from certbot import util
from certbot_apache._internal import apache_util
from certbot_apache._internal import configurator
from certbot_apache._internal import parser
@zope.interface.provider(interfaces.IPluginFactory)
class FedoraConfigurator(configurator.ApacheConfigurator):
"""Fedora 29+ specific ApacheConfigurator override class"""
OS_DEFAULTS = dict(
server_root="/etc/httpd",
vhost_root="/etc/httpd/conf.d",
vhost_files="*.conf",
logs_root="/var/log/httpd",
ctl="httpd",
version_cmd=['httpd', '-v'],
restart_cmd=['apachectl', 'graceful'],
restart_cmd_alt=['apachectl', 'restart'],
conftest_cmd=['apachectl', 'configtest'],
enmod=None,
dismod=None,
le_vhost_ext="-le-ssl.conf",
handle_modules=False,
handle_sites=False,
challenge_location="/etc/httpd/conf.d",
)
def config_test(self):
"""
Override config_test to mitigate configtest error in vanilla installation
of mod_ssl in Fedora. The error is caused by non-existent self-signed
certificates referenced by the configuration, that would be autogenerated
during the first (re)start of httpd.
"""
try:
super(FedoraConfigurator, self).config_test()
except errors.MisconfigurationError:
self._try_restart_fedora()
def get_parser(self):
"""Initializes the ApacheParser"""
return FedoraParser(
self.option("server_root"), self.option("vhost_root"),
self.version, configurator=self)
def _try_restart_fedora(self):
"""
Tries to restart httpd using systemctl to generate the self signed keypair.
"""
try:
util.run_script(['systemctl', 'restart', 'httpd'])
except errors.SubprocessError as err:
raise errors.MisconfigurationError(str(err))
# Finish with actual config check to see if systemctl restart helped
super(FedoraConfigurator, self).config_test()
def _prepare_options(self):
"""
Override the options dictionary initialization to keep using apachectl
instead of httpd and so take advantages of this new bash script in newer versions
of Fedora to restart httpd.
"""
super(FedoraConfigurator, self)._prepare_options()
self.options["restart_cmd"][0] = 'apachectl'
self.options["restart_cmd_alt"][0] = 'apachectl'
self.options["conftest_cmd"][0] = 'apachectl'
class FedoraParser(parser.ApacheParser):
"""Fedora 29+ specific ApacheParser override class"""
def __init__(self, *args, **kwargs):
# Fedora 29+ specific configuration file for Apache
self.sysconfig_filep = "/etc/sysconfig/httpd"
super(FedoraParser, self).__init__(*args, **kwargs)
def update_runtime_variables(self):
""" Override for update_runtime_variables for custom parsing """
# Opportunistic, works if SELinux not enforced
super(FedoraParser, self).update_runtime_variables()
self._parse_sysconfig_var()
def _parse_sysconfig_var(self):
""" Parses Apache CLI options from Fedora configuration file """
defines = apache_util.parse_define_file(self.sysconfig_filep, "OPTIONS")
for k in defines:
self.variables[k] = defines[k]