text: """
  Django settings for healthchecks project.
  
  For the full list of settings and their values, see
  https://docs.djangoproject.com/en/2.1/ref/settings
  """
  
  import os
  
  BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
  
  
  def envbool(s, default):
      v = os.getenv(s, default=default)
      if v not in ("", "True", "False"):
          msg = "Unexpected value %s=%s, use 'True' or 'False'" % (s, v)
          raise Exception(msg)
      return v == "True"
  
  
  def envint(s, default):
      v = os.getenv(s, default)
      if v == "None":
          return None
  
      return int(v)
  
  
  SECRET_KEY = os.getenv("SECRET_KEY", "")
  METRICS_KEY = os.getenv("METRICS_KEY")
  DEBUG = envbool("DEBUG", "True")
  ALLOWED_HOSTS = os.getenv("ALLOWED_HOSTS", "*").split(",")
  DEFAULT_FROM_EMAIL = os.getenv("DEFAULT_FROM_EMAIL", "healthchecks@example.org")
  SUPPORT_EMAIL = os.getenv("SUPPORT_EMAIL")
  USE_PAYMENTS = envbool("USE_PAYMENTS", "False")
  REGISTRATION_OPEN = envbool("REGISTRATION_OPEN", "True")
  VERSION = ""
  with open(os.path.join(BASE_DIR, "CHANGELOG.md"), encoding="utf-8") as f:
      for line in f.readlines():
          if line.startswith("## v"):
              VERSION = line.split()[1]
              break
  
  
  INSTALLED_APPS = (
      "hc.accounts",
      "django.contrib.admin",
      "django.contrib.auth",
      "django.contrib.contenttypes",
      "django.contrib.humanize",
      "django.contrib.sessions",
      "django.contrib.messages",
      "django.contrib.staticfiles",
      "compressor",
      "hc.api",
      "hc.front",
      "hc.payments",
  )
  
  
  MIDDLEWARE = (
      "django.middleware.security.SecurityMiddleware",
      "django.contrib.sessions.middleware.SessionMiddleware",
      "django.middleware.common.CommonMiddleware",
      "django.middleware.csrf.CsrfViewMiddleware",
      "django.contrib.auth.middleware.AuthenticationMiddleware",
      "hc.accounts.middleware.CustomHeaderMiddleware",
      "django.contrib.messages.middleware.MessageMiddleware",
      "django.middleware.clickjacking.XFrameOptionsMiddleware",
      "django.middleware.locale.LocaleMiddleware",
      "hc.accounts.middleware.TeamAccessMiddleware",
  )
  
  AUTHENTICATION_BACKENDS = (
      "hc.accounts.backends.EmailBackend",
      "hc.accounts.backends.ProfileBackend",
  )
  
  REMOTE_USER_HEADER = os.getenv("REMOTE_USER_HEADER")
  if REMOTE_USER_HEADER:
      AUTHENTICATION_BACKENDS = ("hc.accounts.backends.CustomHeaderBackend",)
  
  ROOT_URLCONF = "hc.urls"
  
  TEMPLATES = [
      {
          "BACKEND": "django.template.backends.django.DjangoTemplates",
          "DIRS": [os.path.join(BASE_DIR, "templates")],
          "APP_DIRS": True,
          "OPTIONS": {
              "context_processors": [
                  "django.template.context_processors.debug",
                  "django.template.context_processors.request",
                  "django.contrib.auth.context_processors.auth",
                  "django.contrib.messages.context_processors.messages",
                  "hc.front.context_processors.branding",
                  "hc.payments.context_processors.payments",
              ]
          },
      }
  ]
  
  WSGI_APPLICATION = "hc.wsgi.application"
  TEST_RUNNER = "hc.api.tests.CustomRunner"
  
  
  # Default database engine is SQLite. So one can just check out code,
  # install requirements.txt and do manage.py runserver and it works
  DATABASES = {
      "default": {
          "ENGINE": "django.db.backends.sqlite3",
          "NAME": os.getenv("DB_NAME", BASE_DIR + "/hc.sqlite"),
      }
  }
  
  # You can switch database engine to postgres or mysql using environment
  # variable 'DB'. Travis CI does this.
  if os.getenv("DB") == "postgres":
      DATABASES = {
          "default": {
              "ENGINE": "django.db.backends.postgresql",
              "HOST": os.getenv("DB_HOST", ""),
              "PORT": os.getenv("DB_PORT", ""),
              "NAME": os.getenv("DB_NAME", "hc"),
              "USER": os.getenv("DB_USER", "postgres"),
              "PASSWORD": os.getenv("DB_PASSWORD", ""),
              "CONN_MAX_AGE": envint("DB_CONN_MAX_AGE", "0"),
              "TEST": {"CHARSET": "UTF8"},
              "OPTIONS": {
                  "sslmode": os.getenv("DB_SSLMODE", "prefer"),
                  "target_session_attrs": os.getenv(
                      "DB_TARGET_SESSION_ATTRS", "read-write"
                  ),
              },
          }
      }
  
  if os.getenv("DB") == "mysql":
      DATABASES = {
          "default": {
              "ENGINE": "django.db.backends.mysql",
              "HOST": os.getenv("DB_HOST", ""),
              "PORT": os.getenv("DB_PORT", ""),
              "NAME": os.getenv("DB_NAME", "hc"),
              "USER": os.getenv("DB_USER", "root"),
              "PASSWORD": os.getenv("DB_PASSWORD", ""),
              "TEST": {"CHARSET": "UTF8"},
          }
      }
  
  USE_TZ = True
  TIME_ZONE = "UTC"
  LOCALE_PATHS = (os.path.join(BASE_DIR, "locale"),)
  
  SITE_ROOT = os.getenv("SITE_ROOT", "http://localhost:8000")
  SITE_NAME = os.getenv("SITE_NAME", "Mychecks")
  MASTER_BADGE_LABEL = os.getenv("MASTER_BADGE_LABEL", SITE_NAME)
  PING_ENDPOINT = os.getenv("PING_ENDPOINT", SITE_ROOT + "/ping/")
  PING_EMAIL_DOMAIN = os.getenv("PING_EMAIL_DOMAIN", "localhost")
  PING_BODY_LIMIT = envint("PING_BODY_LIMIT", "10000")
  STATIC_URL = "/static/"
  STATICFILES_DIRS = [os.path.join(BASE_DIR, "static")]
  STATIC_ROOT = os.path.join(BASE_DIR, "static-collected")
  STATICFILES_FINDERS = (
      "django.contrib.staticfiles.finders.FileSystemFinder",
      "django.contrib.staticfiles.finders.AppDirectoriesFinder",
      "compressor.finders.CompressorFinder",
  )
  COMPRESS_OFFLINE = True
  COMPRESS_CSS_HASHING_METHOD = "content"
  
  # WebAuthn
  RP_ID = os.getenv("RP_ID")
  
  # Discord integration
  DISCORD_CLIENT_ID = os.getenv("DISCORD_CLIENT_ID")
  DISCORD_CLIENT_SECRET = os.getenv("DISCORD_CLIENT_SECRET")
  
  # Email integration
  EMAIL_HOST = os.getenv("EMAIL_HOST", "")
  EMAIL_PORT = envint("EMAIL_PORT", "587")
  EMAIL_HOST_USER = os.getenv("EMAIL_HOST_USER", "")
  EMAIL_HOST_PASSWORD = os.getenv("EMAIL_HOST_PASSWORD", "")
  EMAIL_USE_TLS = envbool("EMAIL_USE_TLS", "True")
  EMAIL_USE_VERIFICATION = envbool("EMAIL_USE_VERIFICATION", "True")
  
  # Slack integration
  SLACK_CLIENT_ID = os.getenv("SLACK_CLIENT_ID")
  SLACK_CLIENT_SECRET = os.getenv("SLACK_CLIENT_SECRET")
  
  # Pushover integration
  PUSHOVER_API_TOKEN = os.getenv("PUSHOVER_API_TOKEN")
  PUSHOVER_SUBSCRIPTION_URL = os.getenv("PUSHOVER_SUBSCRIPTION_URL")
  PUSHOVER_EMERGENCY_RETRY_DELAY = int(os.getenv("PUSHOVER_EMERGENCY_RETRY_DELAY", "300"))
  PUSHOVER_EMERGENCY_EXPIRATION = int(os.getenv("PUSHOVER_EMERGENCY_EXPIRATION", "86400"))
  
  # Pushbullet integration
  PUSHBULLET_CLIENT_ID = os.getenv("PUSHBULLET_CLIENT_ID")
  PUSHBULLET_CLIENT_SECRET = os.getenv("PUSHBULLET_CLIENT_SECRET")
  
  # Telegram integration -- override in local_settings.py
  TELEGRAM_BOT_NAME = os.getenv("TELEGRAM_BOT_NAME", "ExampleBot")
  TELEGRAM_TOKEN = os.getenv("TELEGRAM_TOKEN")
  
  # SMS and WhatsApp (Twilio) integration
  TWILIO_ACCOUNT = os.getenv("TWILIO_ACCOUNT")
  TWILIO_AUTH = os.getenv("TWILIO_AUTH")
  TWILIO_FROM = os.getenv("TWILIO_FROM")
  TWILIO_USE_WHATSAPP = envbool("TWILIO_USE_WHATSAPP", "False")
  
  # PagerDuty
  PD_VENDOR_KEY = os.getenv("PD_VENDOR_KEY")
  
  # Trello
  TRELLO_APP_KEY = os.getenv("TRELLO_APP_KEY")
  
  # Matrix
  MATRIX_HOMESERVER = os.getenv("MATRIX_HOMESERVER")
  MATRIX_USER_ID = os.getenv("MATRIX_USER_ID")
  MATRIX_ACCESS_TOKEN = os.getenv("MATRIX_ACCESS_TOKEN")
  
  # Apprise
  APPRISE_ENABLED = envbool("APPRISE_ENABLED", "False")
  
  # Local shell commands
  SHELL_ENABLED = envbool("SHELL_ENABLED", "False")
  
  # LINE Notify
  LINENOTIFY_CLIENT_ID = os.getenv("LINENOTIFY_CLIENT_ID")
  LINENOTIFY_CLIENT_SECRET = os.getenv("LINENOTIFY_CLIENT_SECRET")
  
  # Signal
  SIGNAL_CLI_ENABLED = envbool("SIGNAL_CLI_ENABLED", "False")
  
  if os.path.exists(os.path.join(BASE_DIR, "hc/local_settings.py")):
      from .local_settings import *
  