site_backend/zonco_backend/settings.py

"""
Django settings for zonco_backend project.

Generated by 'django-admin startproject' using Django 4.2.7.

For more information on this file, see
https://docs.djangoproject.com/en/4.2/topics/settings/

For the full list of settings and their values, see
https://docs.djangoproject.com/en/4.2/ref/settings/
"""

from pathlib import Path
import os

# Build paths inside the project like this: BASE_DIR / 'subdir'.
BASE_DIR = Path(__file__).resolve().parent.parent


# Quick-start development settings - unsuitable for production
# See https://docs.djangoproject.com/en/4.2/howto/deployment/checklist/

# SECURITY WARNING: keep the secret key used in production secret!
SECRET_KEY = os.environ.get('SECRET_KEY', 'django-insecure-ro-sqgr@$*(qao)@d&ezk*z9&%+vbeurgi$b+6y650j*$1b+n5')

# SECURITY WARNING: don't run with debug turned on in production!
# Default to False for production safety - set DEBUG=True only in development
DEBUG = os.environ.get('DEBUG', 'False') == 'True'

# Allow all hosts in development mode for network access
# In production, ALLOWED_HOSTS MUST be set via environment variable
if DEBUG:
    ALLOWED_HOSTS = ['*']  # Allow all hosts in development only
else:
    allowed_hosts_env = os.environ.get('ALLOWED_HOSTS', '')
    ALLOWED_HOSTS = [h.strip() for h in allowed_hosts_env.split(',') if h.strip()]
    if not ALLOWED_HOSTS:
        # Fail safe: empty list rejects all hosts until env is configured
        ALLOWED_HOSTS = []


# Application definition

INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    # Third party apps
    'rest_framework',
    'rest_framework.authtoken',
    'corsheaders',
    # Local apps
    'api',
]

MIDDLEWARE = [
    'django.middleware.security.SecurityMiddleware',
    'corsheaders.middleware.CorsMiddleware',
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.middleware.common.CommonMiddleware',
    'django.middleware.csrf.CsrfViewMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',
    'django.middleware.clickjacking.XFrameOptionsMiddleware',
]

ROOT_URLCONF = 'zonco_backend.urls'

TEMPLATES = [
    {
        'BACKEND': 'django.template.backends.django.DjangoTemplates',
        'DIRS': [],
        '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',
            ],
        },
    },
]

WSGI_APPLICATION = 'zonco_backend.wsgi.application'


# Database
# https://docs.djangoproject.com/en/4.2/ref/settings/#databases

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.postgresql',
        'NAME': os.environ.get('POSTGRES_DB', 'Zoneco_ORG'),
        'USER': os.environ.get('POSTGRES_USER', 'postgres'),
        'PASSWORD': os.environ.get('POSTGRES_PASSWORD', 'postgres'),
        'HOST': os.environ.get('POSTGRES_HOST', 'localhost'),
        'PORT': os.environ.get('POSTGRES_PORT', '5432'),
    }
}


# Password validation
# https://docs.djangoproject.com/en/4.2/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/4.2/topics/i18n/

LANGUAGE_CODE = 'en-us'

TIME_ZONE = 'UTC'

USE_I18N = True

USE_TZ = True


# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/4.2/howto/static-files/

STATIC_URL = 'static/'
STATIC_ROOT = BASE_DIR / 'staticfiles'

# Media files
MEDIA_URL = 'media/'
MEDIA_ROOT = BASE_DIR / 'media'

# Default primary key field type
# https://docs.djangoproject.com/en/4.2/ref/settings/#default-auto-field

DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField'

# REST Framework configuration
REST_FRAMEWORK = {
    'DEFAULT_AUTHENTICATION_CLASSES': [
        'rest_framework.authentication.TokenAuthentication',
        'rest_framework.authentication.BasicAuthentication',
        'rest_framework.authentication.SessionAuthentication',
    ],
    'DEFAULT_PERMISSION_CLASSES': [
        'rest_framework.permissions.AllowAny',
    ],
    'DEFAULT_PAGINATION_CLASS': 'rest_framework.pagination.PageNumberPagination',
    'PAGE_SIZE': 20,
    'DEFAULT_RENDERER_CLASSES': [
        'rest_framework.renderers.JSONRenderer',
    ],
    'DEFAULT_PARSER_CLASSES': [
        'rest_framework.parsers.JSONParser',
        'rest_framework.parsers.MultiPartParser',
        'rest_framework.parsers.FormParser',
    ],
}

# CORS configuration
# In development, allow all origins for easier testing
# In production, CORS_ALLOWED_ORIGINS MUST be set via environment variable
if DEBUG:
    CORS_ALLOW_ALL_ORIGINS = True  # Development only - allows all origins
else:
    cors_origins_env = os.environ.get('CORS_ALLOWED_ORIGINS', '')
    CORS_ALLOWED_ORIGINS = [o.strip() for o in cors_origins_env.split(',') if o.strip()]

CORS_ALLOW_CREDENTIALS = True

CORS_ALLOW_METHODS = [
    'DELETE',
    'GET',
    'OPTIONS',
    'PATCH',
    'POST',
    'PUT',
]

CORS_ALLOW_HEADERS = [
    'accept',
    'accept-encoding',
    'authorization',
    'content-type',
    'dnt',
    'origin',
    'user-agent',
    'x-csrftoken',
    'x-requested-with',
]