prompt: We are currently solving the following issue within our repository. Here is the issue text:
  --- BEGIN ISSUE ---
  letsencrypt-apache on Gentoo should read /etc/conf.d/apache
  In Gentoo, Define's are passed by the initscript as -D arguments read in /etc/conf.d/apache
  
  LE seems to ignore that. As a result, since the "Listen 443" directive is inside IfDefine blocks, it is systematically overlooked by LE since it doesn't know about the active Define directives.
  
  LE will therefore add a "Listen 443" temporary directive, which will cause apache to fail with a "could not bind to address 0.0.0.0:443" error. LE in turn will fail with "urn:acme:error:connection" since apache is not running during the challenge.
  
  
  --- END ISSUE ---
  
  Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
  --- BEGIN FILES ---
  Path: `letsencrypt-apache/letsencrypt_apache/constants.py`
  Content:
  ```
  1 """Apache plugin constants."""
  2 import pkg_resources
  3 from letsencrypt import le_util
  4 
  5 
  6 CLI_DEFAULTS_DEBIAN = dict(
  7     server_root="/etc/apache2",
  8     vhost_root="/etc/apache2/sites-available",
  9     vhost_files="*",
  10     version_cmd=['apache2ctl', '-v'],
  11     define_cmd=['apache2ctl', '-t', '-D', 'DUMP_RUN_CFG'],
  12     restart_cmd=['apache2ctl', 'graceful'],
  13     conftest_cmd=['apache2ctl', 'configtest'],
  14     enmod="a2enmod",
  15     dismod="a2dismod",
  16     le_vhost_ext="-le-ssl.conf",
  17     handle_mods=True,
  18     handle_sites=True,
  19     challenge_location="/etc/apache2",
  20     MOD_SSL_CONF_SRC=pkg_resources.resource_filename(
  21     "letsencrypt_apache", "options-ssl-apache.conf")
  22 )
  23 CLI_DEFAULTS_CENTOS = dict(
  24     server_root="/etc/httpd",
  25     vhost_root="/etc/httpd/conf.d",
  26     vhost_files="*.conf",
  27     version_cmd=['apachectl', '-v'],
  28     define_cmd=['apachectl', '-t', '-D', 'DUMP_RUN_CFG'],
  29     restart_cmd=['apachectl', 'graceful'],
  30     conftest_cmd=['apachectl', 'configtest'],
  31     enmod=None,
  32     dismod=None,
  33     le_vhost_ext="-le-ssl.conf",
  34     handle_mods=False,
  35     handle_sites=False,
  36     challenge_location="/etc/httpd/conf.d",
  37     MOD_SSL_CONF_SRC=pkg_resources.resource_filename(
  38     "letsencrypt_apache", "centos-options-ssl-apache.conf")
  39 )
  40 CLI_DEFAULTS_GENTOO = dict(
  41     server_root="/etc/apache2",
  42     vhost_root="/etc/apache2/vhosts.d",
  43     vhost_files="*.conf",
  44     version_cmd=['/usr/sbin/apache2', '-v'],
  45     define_cmd=['/usr/sbin/apache2', '-t', '-D', 'DUMP_RUN_CFG'],
  46     restart_cmd=['apache2ctl', 'graceful'],
  47     conftest_cmd=['apache2ctl', 'configtest'],
  48     enmod=None,
  49     dismod=None,
  50     le_vhost_ext="-le-ssl.conf",
  51     handle_mods=False,
  52     handle_sites=False,
  53     challenge_location="/etc/apache2/vhosts.d",
  54     MOD_SSL_CONF_SRC=pkg_resources.resource_filename(
  55     "letsencrypt_apache", "options-ssl-apache.conf")
  56 )
  57 CLI_DEFAULTS_DARWIN = dict(
  58     server_root="/etc/apache2",
  59     vhost_root="/etc/apache2/other",
  60     vhost_files="*.conf",
  61     version_cmd=['/usr/sbin/httpd', '-v'],
  62     define_cmd=['/usr/sbin/httpd', '-t', '-D', 'DUMP_RUN_CFG'],
  63     restart_cmd=['apachectl', 'graceful'],
  64     conftest_cmd=['apachectl', 'configtest'],
  65     enmod=None,
  66     dismod=None,
  67     le_vhost_ext="-le-ssl.conf",
  68     handle_mods=False,
  69     handle_sites=False,
  70     challenge_location="/etc/apache2/other",
  71     MOD_SSL_CONF_SRC=pkg_resources.resource_filename(
  72     "letsencrypt_apache", "options-ssl-apache.conf")
  73 )
  74 CLI_DEFAULTS = {
  75     "debian": CLI_DEFAULTS_DEBIAN,
  76     "ubuntu": CLI_DEFAULTS_DEBIAN,
  77     "centos": CLI_DEFAULTS_CENTOS,
  78     "centos linux": CLI_DEFAULTS_CENTOS,
  79     "fedora": CLI_DEFAULTS_CENTOS,
  80     "red hat enterprise linux server": CLI_DEFAULTS_CENTOS,
  81     "gentoo base system": CLI_DEFAULTS_GENTOO,
  82     "darwin": CLI_DEFAULTS_DARWIN,
  83 }
  84 """CLI defaults."""
  85 
  86 MOD_SSL_CONF_DEST = "options-ssl-apache.conf"
  87 """Name of the mod_ssl config file as saved in `IConfig.config_dir`."""
  88 
  89 AUGEAS_LENS_DIR = pkg_resources.resource_filename(
  90     "letsencrypt_apache", "augeas_lens")
  91 """Path to the Augeas lens directory"""
  92 
  93 REWRITE_HTTPS_ARGS = [
  94     "^", "https://%{SERVER_NAME}%{REQUEST_URI}", "[L,QSA,R=permanent]"]
  95 """Apache version<2.3.9 rewrite rule arguments used for redirections to
  96 https vhost"""
  97 
  98 REWRITE_HTTPS_ARGS_WITH_END = [
  99     "^", "https://%{SERVER_NAME}%{REQUEST_URI}", "[END,QSA,R=permanent]"]
  100 """Apache version >= 2.3.9 rewrite rule arguments used for redirections to
  101     https vhost"""
  102 
  103 HSTS_ARGS = ["always", "set", "Strict-Transport-Security",
  104              "\"max-age=31536000\""]
  105 """Apache header arguments for HSTS"""
  106 
  107 UIR_ARGS = ["always", "set", "Content-Security-Policy",
  108             "upgrade-insecure-requests"]
  109 
  110 HEADER_ARGS = {"Strict-Transport-Security": HSTS_ARGS,
  111                "Upgrade-Insecure-Requests": UIR_ARGS}
  112 
  113 
  114 def os_constant(key):
  115     """Get a constant value for operating system
  116     :param key: name of cli constant
  117     :return: value of constant for active os
  118     """
  119     os_info = le_util.get_os_info()
  120     try:
  121         constants = CLI_DEFAULTS[os_info[0].lower()]
  122     except KeyError:
  123         constants = CLI_DEFAULTS["debian"]
  124     return constants[key]
  125
  ```
  --- END FILES ---
  
  Please first localize the bug based on the issue statement, and then generate a patch according to the `git diff` format fenced by three backticks.
  
  Here is an example:
  
  ```diff
  diff --git a/examples/server_async.py b/examples/server_async.py
  --- a/examples/server_async.py
  +++ b/examples/server_async.py
  @@ -313,4 +313,4 @@
   
   
   if __name__ == "__main__":
  -    asyncio.run(run_async_server("."), debug=True)
  +    asyncio.run(run_async_server(), debug=True)
  diff --git a/examples/server_sync.py b/examples/server_sync.py
  --- a/examples/server_sync.py
  +++ b/examples/server_sync.py
  @@ -313,5 +313,5 @@
   
   
   if __name__ == "__main__":
  -    server = run_sync_server(".")
  +    server = run_sync_server()
       server.shutdown()
  
  ```
  
golden_diff: diff --git a/letsencrypt-apache/letsencrypt_apache/constants.py b/letsencrypt-apache/letsencrypt_apache/constants.py
  --- a/letsencrypt-apache/letsencrypt_apache/constants.py
  +++ b/letsencrypt-apache/letsencrypt_apache/constants.py
  @@ -42,7 +42,7 @@
       vhost_root="/etc/apache2/vhosts.d",
       vhost_files="*.conf",
       version_cmd=['/usr/sbin/apache2', '-v'],
  -    define_cmd=['/usr/sbin/apache2', '-t', '-D', 'DUMP_RUN_CFG'],
  +    define_cmd=['apache2ctl', 'virtualhosts'],
       restart_cmd=['apache2ctl', 'graceful'],
       conftest_cmd=['apache2ctl', 'configtest'],
       enmod=None,
  
verification_info: {"golden_diff": "diff --git a/letsencrypt-apache/letsencrypt_apache/constants.py b/letsencrypt-apache/letsencrypt_apache/constants.py\n--- a/letsencrypt-apache/letsencrypt_apache/constants.py\n+++ b/letsencrypt-apache/letsencrypt_apache/constants.py\n@@ -42,7 +42,7 @@\n     vhost_root=\"/etc/apache2/vhosts.d\",\n     vhost_files=\"*.conf\",\n     version_cmd=['/usr/sbin/apache2', '-v'],\n-    define_cmd=['/usr/sbin/apache2', '-t', '-D', 'DUMP_RUN_CFG'],\n+    define_cmd=['apache2ctl', 'virtualhosts'],\n     restart_cmd=['apache2ctl', 'graceful'],\n     conftest_cmd=['apache2ctl', 'configtest'],\n     enmod=None,\n", "issue": "letsencrypt-apache on Gentoo should read /etc/conf.d/apache\nIn Gentoo, Define's are passed by the initscript as -D arguments read in /etc/conf.d/apache\n\nLE seems to ignore that. As a result, since the \"Listen 443\" directive is inside IfDefine blocks, it is systematically overlooked by LE since it doesn't know about the active Define directives.\n\nLE will therefore add a \"Listen 443\" temporary directive, which will cause apache to fail with a \"could not bind to address 0.0.0.0:443\" error. LE in turn will fail with \"urn:acme:error:connection\" since apache is not running during the challenge.\n\n", "before_files": [{"content": "\"\"\"Apache plugin constants.\"\"\"\nimport pkg_resources\nfrom letsencrypt import le_util\n\n\nCLI_DEFAULTS_DEBIAN = dict(\n    server_root=\"/etc/apache2\",\n    vhost_root=\"/etc/apache2/sites-available\",\n    vhost_files=\"*\",\n    version_cmd=['apache2ctl', '-v'],\n    define_cmd=['apache2ctl', '-t', '-D', 'DUMP_RUN_CFG'],\n    restart_cmd=['apache2ctl', 'graceful'],\n    conftest_cmd=['apache2ctl', 'configtest'],\n    enmod=\"a2enmod\",\n    dismod=\"a2dismod\",\n    le_vhost_ext=\"-le-ssl.conf\",\n    handle_mods=True,\n    handle_sites=True,\n    challenge_location=\"/etc/apache2\",\n    MOD_SSL_CONF_SRC=pkg_resources.resource_filename(\n    \"letsencrypt_apache\", \"options-ssl-apache.conf\")\n)\nCLI_DEFAULTS_CENTOS = dict(\n    server_root=\"/etc/httpd\",\n    vhost_root=\"/etc/httpd/conf.d\",\n    vhost_files=\"*.conf\",\n    version_cmd=['apachectl', '-v'],\n    define_cmd=['apachectl', '-t', '-D', 'DUMP_RUN_CFG'],\n    restart_cmd=['apachectl', 'graceful'],\n    conftest_cmd=['apachectl', 'configtest'],\n    enmod=None,\n    dismod=None,\n    le_vhost_ext=\"-le-ssl.conf\",\n    handle_mods=False,\n    handle_sites=False,\n    challenge_location=\"/etc/httpd/conf.d\",\n    MOD_SSL_CONF_SRC=pkg_resources.resource_filename(\n    \"letsencrypt_apache\", \"centos-options-ssl-apache.conf\")\n)\nCLI_DEFAULTS_GENTOO = dict(\n    server_root=\"/etc/apache2\",\n    vhost_root=\"/etc/apache2/vhosts.d\",\n    vhost_files=\"*.conf\",\n    version_cmd=['/usr/sbin/apache2', '-v'],\n    define_cmd=['/usr/sbin/apache2', '-t', '-D', 'DUMP_RUN_CFG'],\n    restart_cmd=['apache2ctl', 'graceful'],\n    conftest_cmd=['apache2ctl', 'configtest'],\n    enmod=None,\n    dismod=None,\n    le_vhost_ext=\"-le-ssl.conf\",\n    handle_mods=False,\n    handle_sites=False,\n    challenge_location=\"/etc/apache2/vhosts.d\",\n    MOD_SSL_CONF_SRC=pkg_resources.resource_filename(\n    \"letsencrypt_apache\", \"options-ssl-apache.conf\")\n)\nCLI_DEFAULTS_DARWIN = dict(\n    server_root=\"/etc/apache2\",\n    vhost_root=\"/etc/apache2/other\",\n    vhost_files=\"*.conf\",\n    version_cmd=['/usr/sbin/httpd', '-v'],\n    define_cmd=['/usr/sbin/httpd', '-t', '-D', 'DUMP_RUN_CFG'],\n    restart_cmd=['apachectl', 'graceful'],\n    conftest_cmd=['apachectl', 'configtest'],\n    enmod=None,\n    dismod=None,\n    le_vhost_ext=\"-le-ssl.conf\",\n    handle_mods=False,\n    handle_sites=False,\n    challenge_location=\"/etc/apache2/other\",\n    MOD_SSL_CONF_SRC=pkg_resources.resource_filename(\n    \"letsencrypt_apache\", \"options-ssl-apache.conf\")\n)\nCLI_DEFAULTS = {\n    \"debian\": CLI_DEFAULTS_DEBIAN,\n    \"ubuntu\": CLI_DEFAULTS_DEBIAN,\n    \"centos\": CLI_DEFAULTS_CENTOS,\n    \"centos linux\": CLI_DEFAULTS_CENTOS,\n    \"fedora\": CLI_DEFAULTS_CENTOS,\n    \"red hat enterprise linux server\": CLI_DEFAULTS_CENTOS,\n    \"gentoo base system\": CLI_DEFAULTS_GENTOO,\n    \"darwin\": CLI_DEFAULTS_DARWIN,\n}\n\"\"\"CLI defaults.\"\"\"\n\nMOD_SSL_CONF_DEST = \"options-ssl-apache.conf\"\n\"\"\"Name of the mod_ssl config file as saved in `IConfig.config_dir`.\"\"\"\n\nAUGEAS_LENS_DIR = pkg_resources.resource_filename(\n    \"letsencrypt_apache\", \"augeas_lens\")\n\"\"\"Path to the Augeas lens directory\"\"\"\n\nREWRITE_HTTPS_ARGS = [\n    \"^\", \"https://%{SERVER_NAME}%{REQUEST_URI}\", \"[L,QSA,R=permanent]\"]\n\"\"\"Apache version<2.3.9 rewrite rule arguments used for redirections to\nhttps vhost\"\"\"\n\nREWRITE_HTTPS_ARGS_WITH_END = [\n    \"^\", \"https://%{SERVER_NAME}%{REQUEST_URI}\", \"[END,QSA,R=permanent]\"]\n\"\"\"Apache version >= 2.3.9 rewrite rule arguments used for redirections to\n    https vhost\"\"\"\n\nHSTS_ARGS = [\"always\", \"set\", \"Strict-Transport-Security\",\n             \"\\\"max-age=31536000\\\"\"]\n\"\"\"Apache header arguments for HSTS\"\"\"\n\nUIR_ARGS = [\"always\", \"set\", \"Content-Security-Policy\",\n            \"upgrade-insecure-requests\"]\n\nHEADER_ARGS = {\"Strict-Transport-Security\": HSTS_ARGS,\n               \"Upgrade-Insecure-Requests\": UIR_ARGS}\n\n\ndef os_constant(key):\n    \"\"\"Get a constant value for operating system\n    :param key: name of cli constant\n    :return: value of constant for active os\n    \"\"\"\n    os_info = le_util.get_os_info()\n    try:\n        constants = CLI_DEFAULTS[os_info[0].lower()]\n    except KeyError:\n        constants = CLI_DEFAULTS[\"debian\"]\n    return constants[key]\n", "path": "letsencrypt-apache/letsencrypt_apache/constants.py"}], "after_files": [{"content": "\"\"\"Apache plugin constants.\"\"\"\nimport pkg_resources\nfrom letsencrypt import le_util\n\n\nCLI_DEFAULTS_DEBIAN = dict(\n    server_root=\"/etc/apache2\",\n    vhost_root=\"/etc/apache2/sites-available\",\n    vhost_files=\"*\",\n    version_cmd=['apache2ctl', '-v'],\n    define_cmd=['apache2ctl', '-t', '-D', 'DUMP_RUN_CFG'],\n    restart_cmd=['apache2ctl', 'graceful'],\n    conftest_cmd=['apache2ctl', 'configtest'],\n    enmod=\"a2enmod\",\n    dismod=\"a2dismod\",\n    le_vhost_ext=\"-le-ssl.conf\",\n    handle_mods=True,\n    handle_sites=True,\n    challenge_location=\"/etc/apache2\",\n    MOD_SSL_CONF_SRC=pkg_resources.resource_filename(\n    \"letsencrypt_apache\", \"options-ssl-apache.conf\")\n)\nCLI_DEFAULTS_CENTOS = dict(\n    server_root=\"/etc/httpd\",\n    vhost_root=\"/etc/httpd/conf.d\",\n    vhost_files=\"*.conf\",\n    version_cmd=['apachectl', '-v'],\n    define_cmd=['apachectl', '-t', '-D', 'DUMP_RUN_CFG'],\n    restart_cmd=['apachectl', 'graceful'],\n    conftest_cmd=['apachectl', 'configtest'],\n    enmod=None,\n    dismod=None,\n    le_vhost_ext=\"-le-ssl.conf\",\n    handle_mods=False,\n    handle_sites=False,\n    challenge_location=\"/etc/httpd/conf.d\",\n    MOD_SSL_CONF_SRC=pkg_resources.resource_filename(\n    \"letsencrypt_apache\", \"centos-options-ssl-apache.conf\")\n)\nCLI_DEFAULTS_GENTOO = dict(\n    server_root=\"/etc/apache2\",\n    vhost_root=\"/etc/apache2/vhosts.d\",\n    vhost_files=\"*.conf\",\n    version_cmd=['/usr/sbin/apache2', '-v'],\n    define_cmd=['apache2ctl', 'virtualhosts'],\n    restart_cmd=['apache2ctl', 'graceful'],\n    conftest_cmd=['apache2ctl', 'configtest'],\n    enmod=None,\n    dismod=None,\n    le_vhost_ext=\"-le-ssl.conf\",\n    handle_mods=False,\n    handle_sites=False,\n    challenge_location=\"/etc/apache2/vhosts.d\",\n    MOD_SSL_CONF_SRC=pkg_resources.resource_filename(\n    \"letsencrypt_apache\", \"options-ssl-apache.conf\")\n)\nCLI_DEFAULTS_DARWIN = dict(\n    server_root=\"/etc/apache2\",\n    vhost_root=\"/etc/apache2/other\",\n    vhost_files=\"*.conf\",\n    version_cmd=['/usr/sbin/httpd', '-v'],\n    define_cmd=['/usr/sbin/httpd', '-t', '-D', 'DUMP_RUN_CFG'],\n    restart_cmd=['apachectl', 'graceful'],\n    conftest_cmd=['apachectl', 'configtest'],\n    enmod=None,\n    dismod=None,\n    le_vhost_ext=\"-le-ssl.conf\",\n    handle_mods=False,\n    handle_sites=False,\n    challenge_location=\"/etc/apache2/other\",\n    MOD_SSL_CONF_SRC=pkg_resources.resource_filename(\n    \"letsencrypt_apache\", \"options-ssl-apache.conf\")\n)\nCLI_DEFAULTS = {\n    \"debian\": CLI_DEFAULTS_DEBIAN,\n    \"ubuntu\": CLI_DEFAULTS_DEBIAN,\n    \"centos\": CLI_DEFAULTS_CENTOS,\n    \"centos linux\": CLI_DEFAULTS_CENTOS,\n    \"fedora\": CLI_DEFAULTS_CENTOS,\n    \"red hat enterprise linux server\": CLI_DEFAULTS_CENTOS,\n    \"gentoo base system\": CLI_DEFAULTS_GENTOO,\n    \"darwin\": CLI_DEFAULTS_DARWIN,\n}\n\"\"\"CLI defaults.\"\"\"\n\nMOD_SSL_CONF_DEST = \"options-ssl-apache.conf\"\n\"\"\"Name of the mod_ssl config file as saved in `IConfig.config_dir`.\"\"\"\n\nAUGEAS_LENS_DIR = pkg_resources.resource_filename(\n    \"letsencrypt_apache\", \"augeas_lens\")\n\"\"\"Path to the Augeas lens directory\"\"\"\n\nREWRITE_HTTPS_ARGS = [\n    \"^\", \"https://%{SERVER_NAME}%{REQUEST_URI}\", \"[L,QSA,R=permanent]\"]\n\"\"\"Apache version<2.3.9 rewrite rule arguments used for redirections to\nhttps vhost\"\"\"\n\nREWRITE_HTTPS_ARGS_WITH_END = [\n    \"^\", \"https://%{SERVER_NAME}%{REQUEST_URI}\", \"[END,QSA,R=permanent]\"]\n\"\"\"Apache version >= 2.3.9 rewrite rule arguments used for redirections to\n    https vhost\"\"\"\n\nHSTS_ARGS = [\"always\", \"set\", \"Strict-Transport-Security\",\n             \"\\\"max-age=31536000\\\"\"]\n\"\"\"Apache header arguments for HSTS\"\"\"\n\nUIR_ARGS = [\"always\", \"set\", \"Content-Security-Policy\",\n            \"upgrade-insecure-requests\"]\n\nHEADER_ARGS = {\"Strict-Transport-Security\": HSTS_ARGS,\n               \"Upgrade-Insecure-Requests\": UIR_ARGS}\n\n\ndef os_constant(key):\n    \"\"\"Get a constant value for operating system\n    :param key: name of cli constant\n    :return: value of constant for active os\n    \"\"\"\n    os_info = le_util.get_os_info()\n    try:\n        constants = CLI_DEFAULTS[os_info[0].lower()]\n    except KeyError:\n        constants = CLI_DEFAULTS[\"debian\"]\n    return constants[key]\n", "path": "letsencrypt-apache/letsencrypt_apache/constants.py"}]}