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""" Distribution specific override class for CentOS family (RHEL, Fedora) """
import logging
from typing import Any
from certbot import errors
from certbot import util
from certbot_apache._internal import apache_util
from certbot_apache._internal import configurator
from certbot_apache._internal import parser
from certbot_apache._internal.configurator import OsOptions
logger = logging.getLogger(__name__)
class CentOSConfigurator(configurator.ApacheConfigurator):
"""CentOS specific ApacheConfigurator override class"""
OS_DEFAULTS = OsOptions(
server_root="/etc/httpd",
vhost_root="/etc/httpd/conf.d",
vhost_files="*.conf",
logs_root="/var/log/httpd",
ctl="apachectl",
apache_bin="httpd",
version_cmd=['apachectl', '-v'],
restart_cmd=['apachectl', 'graceful'],
restart_cmd_alt=['apachectl', 'restart'],
conftest_cmd=['apachectl', 'configtest'],
challenge_location="/etc/httpd/conf.d",
)
def config_test(self) -> None:
"""
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.
"""
os_info = util.get_os_info()
fedora = os_info[0].lower() == "fedora"
try:
super().config_test()
except errors.MisconfigurationError:
if fedora:
self._try_restart_fedora()
else:
raise
def _rhel9_or_newer(self) -> bool:
os_name, os_version = util.get_os_info()
rhel_derived = os_name in [
"centos", "centos linux",
"cloudlinux",
"ol", "oracle",
"rhel", "redhatenterpriseserver", "red hat enterprise linux server",
"scientific", "scientific linux",
]
# It is important that the loose version comparison below is not made
# if the OS is not RHEL derived. See
# https://github.com/certbot/certbot/issues/9481.
if not rhel_derived:
return False
at_least_v9 = util.parse_loose_version(os_version) >= util.parse_loose_version('9')
return at_least_v9
def _override_cmds(self) -> None:
super()._override_cmds()
# As of RHEL 9, apachectl can't be passed flags like "-v" or "-t -D", so
# instead use options.bin (i.e. httpd) for version_cmd and the various
# get_X commands
if self._rhel9_or_newer():
if not self.options.bin:
raise ValueError("OS option apache_bin must be set for CentOS") # pragma: no cover
self.options.version_cmd[0] = self.options.bin
self.options.get_modules_cmd[0] = self.options.bin
self.options.get_includes_cmd[0] = self.options.bin
self.options.get_defines_cmd[0] = self.options.bin
if not self.options.restart_cmd_alt: # pragma: no cover
raise ValueError("OS option restart_cmd_alt must be set for CentOS.")
self.options.restart_cmd_alt[0] = self.options.ctl
def _try_restart_fedora(self) -> None:
"""
Tries to restart httpd using systemctl to generate the self signed key pair.
"""
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().config_test()
def get_parser(self) -> "CentOSParser":
"""Initializes the ApacheParser"""
return CentOSParser(
self.options.server_root, self, self.options.vhost_root, self.version)
class CentOSParser(parser.ApacheParser):
"""CentOS specific ApacheParser override class"""
def __init__(self, *args: Any, **kwargs: Any) -> None:
# CentOS specific configuration file for Apache
self.sysconfig_filep: str = "/etc/sysconfig/httpd"
super().__init__(*args, **kwargs)
def update_runtime_variables(self) -> None:
""" Override for update_runtime_variables for custom parsing """
# Opportunistic, works if SELinux not enforced
super().update_runtime_variables()
self.parse_sysconfig_var()
def parse_sysconfig_var(self) -> None:
""" Parses Apache CLI options from CentOS configuration file """
defines = apache_util.parse_define_file(self.sysconfig_filep, "OPTIONS")
for k, v in defines.items():
self.variables[k] = v
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