def process_response(self, request, response):
if getattr(response, 'csrf_processing_done', False):
return response
if not request.META.get("CSRF_COOKIE_USED", False):
return response
# Set the CSRF cookie even if it's already set, so we renew
# the expiry timer.
response.set_cookie(settings.CSRF_COOKIE_NAME,
request.META["CSRF_COOKIE"],
max_age=settings.CSRF_COOKIE_AGE,
domain=settings.CSRF_COOKIE_DOMAIN,
path=settings.CSRF_COOKIE_PATH,
secure=settings.CSRF_COOKIE_SECURE,
httponly=settings.CSRF_COOKIE_HTTPONLY
)
# Content varies with the CSRF cookie, so set the Vary header.
patch_vary_headers(response, ('Cookie',))
response.csrf_processing_done = True
return response
python类CSRF_COOKIE_NAME的实例源码
def process_response(self, request, response):
if not getattr(request, 'csrf_cookie_needs_reset', False):
if getattr(response, 'csrf_cookie_set', False):
return response
if not request.META.get("CSRF_COOKIE_USED", False):
return response
# Set the CSRF cookie even if it's already set, so we renew
# the expiry timer.
response.set_cookie(settings.CSRF_COOKIE_NAME,
request.META["CSRF_COOKIE"],
max_age=settings.CSRF_COOKIE_AGE,
domain=settings.CSRF_COOKIE_DOMAIN,
path=settings.CSRF_COOKIE_PATH,
secure=settings.CSRF_COOKIE_SECURE,
httponly=settings.CSRF_COOKIE_HTTPONLY
)
# Content varies with the CSRF cookie, so set the Vary header.
patch_vary_headers(response, ('Cookie',))
response.csrf_cookie_set = True
return response
def _get_token(self, request):
if settings.CSRF_USE_SESSIONS:
try:
return request.session.get(CSRF_SESSION_KEY)
except AttributeError:
raise ImproperlyConfigured(
'CSRF_USE_SESSIONS is enabled, but request.session is not '
'set. SessionMiddleware must appear before CsrfViewMiddleware '
'in MIDDLEWARE%s.' % ('_CLASSES' if settings.MIDDLEWARE is None else '')
)
else:
try:
cookie_token = request.COOKIES[settings.CSRF_COOKIE_NAME]
except KeyError:
return None
csrf_token = _sanitize_token(cookie_token)
if csrf_token != cookie_token:
# Cookie token needed to be replaced;
# the cookie needs to be reset.
request.csrf_cookie_needs_reset = True
return csrf_token
def process_response(self, request, response):
if getattr(response, 'csrf_processing_done', False):
return response
if not request.META.get("CSRF_COOKIE_USED", False):
return response
# Set the CSRF cookie even if it's already set, so we renew
# the expiry timer.
response.set_cookie(settings.CSRF_COOKIE_NAME,
request.META["CSRF_COOKIE"],
max_age=settings.CSRF_COOKIE_AGE,
domain=settings.CSRF_COOKIE_DOMAIN,
path=settings.CSRF_COOKIE_PATH,
secure=settings.CSRF_COOKIE_SECURE,
httponly=settings.CSRF_COOKIE_HTTPONLY
)
# Content varies with the CSRF cookie, so set the Vary header.
patch_vary_headers(response, ('Cookie',))
response.csrf_processing_done = True
return response
def process_response(self, request, response):
if getattr(response, 'csrf_processing_done', False):
return response
if not request.META.get("CSRF_COOKIE_USED", False):
return response
# Set the CSRF cookie even if it's already set, so we renew
# the expiry timer.
response.set_cookie(settings.CSRF_COOKIE_NAME,
request.META["CSRF_COOKIE"],
max_age=settings.CSRF_COOKIE_AGE,
domain=settings.CSRF_COOKIE_DOMAIN,
path=settings.CSRF_COOKIE_PATH,
secure=settings.CSRF_COOKIE_SECURE,
httponly=settings.CSRF_COOKIE_HTTPONLY
)
# Content varies with the CSRF cookie, so set the Vary header.
patch_vary_headers(response, ('Cookie',))
response.csrf_processing_done = True
return response
def _get_token(self, request):
if settings.CSRF_USE_SESSIONS:
try:
return request.session.get(CSRF_SESSION_KEY)
except AttributeError:
raise ImproperlyConfigured(
'CSRF_USE_SESSIONS is enabled, but request.session is not '
'set. SessionMiddleware must appear before CsrfViewMiddleware '
'in MIDDLEWARE%s.' % ('_CLASSES' if settings.MIDDLEWARE is None else '')
)
else:
try:
cookie_token = request.COOKIES[settings.CSRF_COOKIE_NAME]
except KeyError:
return None
csrf_token = _sanitize_token(cookie_token)
if csrf_token != cookie_token:
# Cookie token needed to be replaced;
# the cookie needs to be reset.
request.csrf_cookie_needs_reset = True
return csrf_token
def process_response(self, request, response):
if getattr(response, 'csrf_processing_done', False):
return response
# If CSRF_COOKIE is unset, then CsrfViewMiddleware.process_view was
# never called, probably because a request middleware returned a response
# (for example, contrib.auth redirecting to a login page).
if request.META.get('CSRF_COOKIE') is None:
return response
if not request.META.get('CSRF_COOKIE_USED', False):
return response
# Set the CSRF cookie even if it's already set, so we renew
# the expiry timer.
response.set_cookie(
settings.CSRF_COOKIE_NAME,
request.META['CSRF_COOKIE'],
max_age=settings.CSRF_COOKIE_AGE,
domain=get_cookie_domain(request),
path=settings.CSRF_COOKIE_PATH,
secure=request.scheme == 'https',
httponly=settings.CSRF_COOKIE_HTTPONLY
)
# Content varies with the CSRF cookie, so set the Vary header.
patch_vary_headers(response, ('Cookie',))
response.csrf_processing_done = True
return response
def process_response(self, request, response):
if getattr(response, 'csrf_processing_done', False):
return response
# If CSRF_COOKIE is unset, then CsrfViewMiddleware.process_view was
# never called, probably because a request middleware returned a response
# (for example, contrib.auth redirecting to a login page).
if request.META.get("CSRF_COOKIE") is None:
return response
if not request.META.get("CSRF_COOKIE_USED", False):
return response
# Set the CSRF cookie even if it's already set, so we renew
# the expiry timer.
response.set_cookie(settings.CSRF_COOKIE_NAME,
request.META["CSRF_COOKIE"],
max_age=settings.CSRF_COOKIE_AGE,
domain=settings.CSRF_COOKIE_DOMAIN,
path=settings.CSRF_COOKIE_PATH,
secure=settings.CSRF_COOKIE_SECURE,
httponly=settings.CSRF_COOKIE_HTTPONLY
)
# Content varies with the CSRF cookie, so set the Vary header.
patch_vary_headers(response, ('Cookie',))
response.csrf_processing_done = True
return response
def process_response(self, request, response):
if getattr(response, 'csrf_processing_done', False):
return response
# If CSRF_COOKIE is unset, then CsrfViewMiddleware.process_view was
# never called, probably because a request middleware returned a response
# (for example, contrib.auth redirecting to a login page).
if request.META.get("CSRF_COOKIE") is None:
return response
if not request.META.get("CSRF_COOKIE_USED", False):
return response
# Set the CSRF cookie even if it's already set, so we renew
# the expiry timer.
response.set_cookie(settings.CSRF_COOKIE_NAME,
request.META["CSRF_COOKIE"],
max_age=settings.CSRF_COOKIE_AGE,
domain=settings.CSRF_COOKIE_DOMAIN,
path=settings.CSRF_COOKIE_PATH,
secure=settings.CSRF_COOKIE_SECURE,
httponly=settings.CSRF_COOKIE_HTTPONLY
)
# Content varies with the CSRF cookie, so set the Vary header.
patch_vary_headers(response, ('Cookie',))
response.csrf_processing_done = True
return response
def process_response(self, request, response):
if getattr(response, 'csrf_processing_done', False):
return response
# If CSRF_COOKIE is unset, then CsrfViewMiddleware.process_view was
# never called, probably because a request middleware returned a response
# (for example, contrib.auth redirecting to a login page).
if request.META.get("CSRF_COOKIE") is None:
return response
if not request.META.get("CSRF_COOKIE_USED", False):
return response
# Set the CSRF cookie even if it's already set, so we renew
# the expiry timer.
response.set_cookie(settings.CSRF_COOKIE_NAME,
request.META["CSRF_COOKIE"],
max_age=settings.CSRF_COOKIE_AGE,
domain=settings.CSRF_COOKIE_DOMAIN,
path=settings.CSRF_COOKIE_PATH,
secure=settings.CSRF_COOKIE_SECURE,
httponly=settings.CSRF_COOKIE_HTTPONLY
)
# Content varies with the CSRF cookie, so set the Vary header.
patch_vary_headers(response, ('Cookie',))
response.csrf_processing_done = True
return response
def _set_token(self, request, response):
if settings.CSRF_USE_SESSIONS:
request.session[CSRF_SESSION_KEY] = request.META['CSRF_COOKIE']
else:
response.set_cookie(
settings.CSRF_COOKIE_NAME,
request.META['CSRF_COOKIE'],
max_age=settings.CSRF_COOKIE_AGE,
domain=settings.CSRF_COOKIE_DOMAIN,
path=settings.CSRF_COOKIE_PATH,
secure=settings.CSRF_COOKIE_SECURE,
httponly=settings.CSRF_COOKIE_HTTPONLY,
)
# Set the Vary header since content varies with the CSRF cookie.
patch_vary_headers(response, ('Cookie',))
def test_login_csrf_rotate(self, password='password'):
"""
Makes sure that a login rotates the currently-used CSRF token.
"""
# Do a GET to establish a CSRF token
# TestClient isn't used here as we're testing middleware, essentially.
req = HttpRequest()
CsrfViewMiddleware().process_view(req, login_view, (), {})
req.META["CSRF_COOKIE_USED"] = True
resp = login_view(req)
resp2 = CsrfViewMiddleware().process_response(req, resp)
csrf_cookie = resp2.cookies.get(settings.CSRF_COOKIE_NAME, None)
token1 = csrf_cookie.coded_value
# Prepare the POST request
req = HttpRequest()
req.COOKIES[settings.CSRF_COOKIE_NAME] = token1
req.method = "POST"
req.POST = {'username': 'testclient', 'password': password, 'csrfmiddlewaretoken': token1}
req.REQUEST = req.POST
# Use POST request to log in
SessionMiddleware().process_request(req)
CsrfViewMiddleware().process_view(req, login_view, (), {})
req.META["SERVER_NAME"] = "testserver" # Required to have redirect work in login view
req.META["SERVER_PORT"] = 80
resp = login_view(req)
resp2 = CsrfViewMiddleware().process_response(req, resp)
csrf_cookie = resp2.cookies.get(settings.CSRF_COOKIE_NAME, None)
token2 = csrf_cookie.coded_value
# Check the CSRF token switched
self.assertNotEqual(token1, token2)
def is_authenticated(self, request, **kwargs):
"""
Checks to make sure the user is logged in & has a Django session.
"""
# Cargo-culted from Django 1.3/1.4's ``django/middleware/csrf.py``.
# We can't just use what's there, since the return values will be
# wrong.
# We also can't risk accessing ``request.POST``, which will break with
# the serialized bodies.
if request.method in ('GET', 'HEAD', 'OPTIONS', 'TRACE'):
return request.user.is_authenticated()
if getattr(request, '_dont_enforce_csrf_checks', False):
return request.user.is_authenticated()
csrf_token = _sanitize_token(request.COOKIES.get(settings.CSRF_COOKIE_NAME, ''))
if request.is_secure():
referer = request.META.get('HTTP_REFERER')
if referer is None:
return False
good_referer = 'https://%s/' % request.get_host()
if not same_origin(referer, good_referer):
return False
request_csrf_token = request.META.get('HTTP_X_CSRFTOKEN', '')
if not constant_time_compare(request_csrf_token, csrf_token):
return False
return request.user.is_authenticated()
def _set_token(self, request, response):
if settings.CSRF_USE_SESSIONS:
request.session[CSRF_SESSION_KEY] = request.META['CSRF_COOKIE']
else:
response.set_cookie(
settings.CSRF_COOKIE_NAME,
request.META['CSRF_COOKIE'],
max_age=settings.CSRF_COOKIE_AGE,
domain=settings.CSRF_COOKIE_DOMAIN,
path=settings.CSRF_COOKIE_PATH,
secure=settings.CSRF_COOKIE_SECURE,
httponly=settings.CSRF_COOKIE_HTTPONLY,
)
# Set the Vary header since content varies with the CSRF cookie.
patch_vary_headers(response, ('Cookie',))
def process_response(self, request, response):
if getattr(response, 'csrf_processing_done', False):
return response
# If CSRF_COOKIE is unset, then CsrfViewMiddleware.process_view was
# never called, probably because a request middleware returned a response
# (for example, contrib.auth redirecting to a login page).
if request.META.get("CSRF_COOKIE") is None:
return response
if not request.META.get("CSRF_COOKIE_USED", False):
return response
# Set the CSRF cookie even if it's already set, so we renew
# the expiry timer.
response.set_cookie(settings.CSRF_COOKIE_NAME,
request.META["CSRF_COOKIE"],
max_age=settings.CSRF_COOKIE_AGE,
domain=settings.CSRF_COOKIE_DOMAIN,
path=settings.CSRF_COOKIE_PATH,
secure=settings.CSRF_COOKIE_SECURE,
httponly=settings.CSRF_COOKIE_HTTPONLY
)
# Content varies with the CSRF cookie, so set the Vary header.
patch_vary_headers(response, ('Cookie',))
response.csrf_processing_done = True
return response
