text: #
  #   Copyright 2018 EveryUP Srl
  #
  #   Licensed under the Apache License, Version 2.0 (the "License");
  #   you may not use this file except in compliance with the License.
  #   You may obtain a copy of the License at
  #
  #       http://www.apache.org/licenses/LICENSE-2.0
  #
  #   Unless required by applicable law or agreed to in writing, software
  #   distributed under the License is distributed on an  BASIS,
  #   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  #   See the License for the specific language governing permissions and
  #   limitations under the License.
  #
  
  import os
  import sys
  
  from sqlalchemy.engine.url import make_url
  
  # Build paths inside the project like this: os.path.join(BASE_DIR, ...)
  BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
  
  
  # Quick-start development settings - unsuitable for production
  # See https://docs.djangoproject.com/en/1.9/howto/deployment/checklist/
  
  # SECURITY WARNING: keep the secret key used in production secret!
  SECRET_KEY = 'o5+o2jv(3-dqr(&ia#-@79cgr%xi*s+6xjws^8cxp211ge#buf'
  if os.getenv('DJANGO_ENV') == 'prod':
      DEBUG = False
  else:
      DEBUG = True
  
  ALLOWED_HOSTS = ['*']
  
  AUTH_USER_MODEL = "authosm.OsmUser"
  
  SITE_NAME = "Open Source MANO"
  SHORT_SITE_NAME = "OSM"
  
  LOGIN_URL = '/auth/'
  LOGOUT_URL = '/auth/'
  
  VERSION = "0.0.1"
  
  
  # Application definition
  INSTALLED_APPS = [
      'django.contrib.admin',
      'django.contrib.auth',
      'django.contrib.contenttypes',
      'django.contrib.messages',
      'django.contrib.staticfiles',
      'django.contrib.sessions',
      'authosm',
      'projecthandler',
      'packagehandler',
      'descriptorhandler',
      'vimhandler',
      'wimhandler',
      'instancehandler',
      'sdnctrlhandler',
      'userhandler',
      'rolehandler',
      'netslicehandler',
      'k8sclusterhandler',
      'k8srepohandler',
      'osmrepohandler'
  
  ]
  
  MIDDLEWARE_CLASSES = [
      'django.middleware.security.SecurityMiddleware',
      'django.contrib.sessions.middleware.SessionMiddleware',
      'projecthandler.middleware.OsmProjectMiddleware',
      'django.middleware.common.CommonMiddleware',
      'django.middleware.csrf.CsrfViewMiddleware',
      'django.contrib.auth.middleware.AuthenticationMiddleware',
      'django.contrib.auth.middleware.SessionAuthenticationMiddleware',
      'django.contrib.messages.middleware.MessageMiddleware',
      'django.middleware.clickjacking.XFrameOptionsMiddleware',
  
  
  ]
  
  SESSION_ENGINE ='django.contrib.sessions.backends.db'
  SESSION_COOKIE_AGE = 3500 #25 min
  SESSION_EXPIRE_AT_BROWSER_CLOSE = True
  SESSION_SAVE_EVERY_REQUEST = True
  
  ROOT_URLCONF = 'sf_t3d.urls'
  
  TEMPLATES = [
      {
          'BACKEND': 'django.template.backends.django.DjangoTemplates',
          'DIRS': [
              os.path.join(BASE_DIR, 'template'),
              os.path.join(BASE_DIR, 'projecthandler', 'template'),
              os.path.join(BASE_DIR, 'projecthandler', 'template', 'download'),
              os.path.join(BASE_DIR, 'projecthandler', 'template', 'project'),
              os.path.join(BASE_DIR, 'packagehandler', 'template'),
              os.path.join(BASE_DIR, 'descriptorhandler', 'template'),
              os.path.join(BASE_DIR, 'vimhandler', 'template'),
              os.path.join(BASE_DIR, 'wimhandler', 'template'),
              os.path.join(BASE_DIR, 'instancehandler', 'template'),
              os.path.join(BASE_DIR, 'sdnctrlhandler', 'template'),
              os.path.join(BASE_DIR, 'userhandler', 'templates'),
              os.path.join(BASE_DIR, 'netslicehandler', 'template'),
              os.path.join(BASE_DIR, 'k8sclusterhandler', 'template'),
              os.path.join(BASE_DIR, 'k8srepohandler', 'template'),
              os.path.join(BASE_DIR, 'osmrepohandler', 'template'),
          ],
          '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',
                  'sf_t3d.context_processor.conf_constants',
              ],
              'libraries':{
                  'get': 'sf_t3d.templatetags.get',
                  'date_tag': 'sf_t3d.templatetags.datetag',
              }
          },
      },
  ]
  
  WSGI_APPLICATION = 'sf_t3d.wsgi.application'
  
  
  # Database
  # https://docs.djangoproject.com/en/1.9/ref/settings/#databases
  
  sql_uri = make_url(os.getenv('OSMUI_SQL_DATABASE_URI', 'sqlite:///db.sqlite3'))
  if 'sqlite' in sql_uri.drivername:
      DATABASES = {
          'default': {
              'ENGINE': 'django.db.backends.sqlite3',
              'NAME': os.path.join(BASE_DIR, sql_uri.database if sql_uri.database else 'db.sqlite3'),
          }
      }
  else:
      DATABASES = {
          'default': {
              'ENGINE': 'django.db.backends.mysql',
              'NAME': sql_uri.database if sql_uri.database else 'lwui',
              'USER': sql_uri.username,
              'PASSWORD': sql_uri.password,
              'HOST': sql_uri.host,
              'PORT': sql_uri.port,
          }
      }
  
  
  AUTHENTICATION_BACKENDS = ['authosm.backend.OsmBackend']
  
  
  # Password validation
  # https://docs.djangoproject.com/en/1.9/ref/settings/#auth-password-validators
  
  AUTH_PASSWORD_VALIDATORS = [
      {
          'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator',
      },
      {
          'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator',
      },
      {
          'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator',
      },
      {
          'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator',
      },
  ]
  
  
  # Internationalization
  # https://docs.djangoproject.com/en/1.9/topics/i18n/
  
  LANGUAGE_CODE = 'en-us'
  
  TIME_ZONE = 'UTC'
  
  USE_I18N = True
  
  USE_L10N = True
  
  USE_TZ = True
  
  
  # Static files (CSS, JavaScript, Images)
  # https://docs.djangoproject.com/en/1.9/howto/static-files/
  
  STATIC_URL = '/static/'
  if DEBUG:
      STATICFILES_FINDERS = (
          'django.contrib.staticfiles.finders.FileSystemFinder',
          'django.contrib.staticfiles.finders.AppDirectoriesFinder',
          'django.contrib.staticfiles.finders.DefaultStorageFinder'
      )
      STATICFILES_DIRS = (
          # Put strings here, like "/home/html/static" or "C:/www/django/static".
          # Always use forward slashes, even on Windows.
          # Don't forget to use absolute paths, not relative paths.
          os.path.join(BASE_DIR, "static"),
      )
  else:
      STATIC_ROOT = os.path.join(BASE_DIR, "static/")
  
  LOCALE_PATHS = (
      os.path.join(BASE_DIR, 'locale'),
  )
  
  LOGGING = {
      'version': 1,
      'disable_existing_loggers': False,
      'formatters': {
          'verbose': {
              'format': '[django] %(levelname)s %(asctime)s %(module)s %(process)d %(thread)d %(message)s'
          }
      },
      'handlers': {
          'console': {
              'level': 'DEBUG',
              'class': 'logging.StreamHandler',
              'stream': sys.stdout,
              'formatter': 'verbose'
          },
      },
      'loggers': {
          'django': {
              'handlers': ['console'],
              'level': 'DEBUG',
              'propagate': True,
          },
      },
  }