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from django.conf import settings
from .. import Tags, Warning, register
from ..utils import patch_middleware_message
W003 = Warning(
"You don't appear to be using Django's built-in "
"cross-site request forgery protection via the middleware "
"('django.middleware.csrf.CsrfViewMiddleware' is not in your "
"MIDDLEWARE). Enabling the middleware is the safest approach "
"to ensure you don't leave any holes.",
id='security.W003',
)
W016 = Warning(
"You have 'django.middleware.csrf.CsrfViewMiddleware' in your "
"MIDDLEWARE, but you have not set CSRF_COOKIE_SECURE to True. "
"Using a secure-only CSRF cookie makes it more difficult for network "
"traffic sniffers to steal the CSRF token.",
id='security.W016',
)
def _csrf_middleware():
return ("django.middleware.csrf.CsrfViewMiddleware" in settings.MIDDLEWARE_CLASSES or
settings.MIDDLEWARE and "django.middleware.csrf.CsrfViewMiddleware" in settings.MIDDLEWARE)
@register(Tags.security, deploy=True)
def check_csrf_middleware(app_configs, **kwargs):
passed_check = _csrf_middleware()
return [] if passed_check else [patch_middleware_message(W003)]
@register(Tags.security, deploy=True)
def check_csrf_cookie_secure(app_configs, **kwargs):
passed_check = (
settings.CSRF_USE_SESSIONS or
not _csrf_middleware() or
settings.CSRF_COOKIE_SECURE
)
return [] if passed_check else [patch_middleware_message(W016)]
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