mirror of https://github.com/django/django.git
275 lines
9.1 KiB
Python
275 lines
9.1 KiB
Python
import warnings
|
|
from functools import wraps
|
|
|
|
from django.contrib.admin.views.decorators import staff_member_required
|
|
from django.contrib.auth.decorators import login_required, permission_required, user_passes_test
|
|
from django.http import HttpResponse, HttpRequest, HttpResponseNotAllowed
|
|
from django.middleware.clickjacking import XFrameOptionsMiddleware
|
|
from django.test.utils import get_warnings_state, restore_warnings_state
|
|
from django.utils.decorators import method_decorator
|
|
from django.utils.functional import allow_lazy, lazy, memoize
|
|
from django.utils.unittest import TestCase
|
|
from django.views.decorators.cache import cache_page, never_cache, cache_control
|
|
from django.views.decorators.clickjacking import xframe_options_deny, xframe_options_sameorigin, xframe_options_exempt
|
|
from django.views.decorators.http import require_http_methods, require_GET, require_POST, require_safe
|
|
from django.views.decorators.vary import vary_on_headers, vary_on_cookie
|
|
|
|
|
|
def fully_decorated(request):
|
|
"""Expected __doc__"""
|
|
return HttpResponse('<html><body>dummy</body></html>')
|
|
fully_decorated.anything = "Expected __dict__"
|
|
|
|
|
|
def compose(*functions):
|
|
# compose(f, g)(*args, **kwargs) == f(g(*args, **kwargs))
|
|
functions = list(reversed(functions))
|
|
def _inner(*args, **kwargs):
|
|
result = functions[0](*args, **kwargs)
|
|
for f in functions[1:]:
|
|
result = f(result)
|
|
return result
|
|
return _inner
|
|
|
|
|
|
full_decorator = compose(
|
|
# django.views.decorators.http
|
|
require_http_methods(["GET"]),
|
|
require_GET,
|
|
require_POST,
|
|
require_safe,
|
|
|
|
# django.views.decorators.vary
|
|
vary_on_headers('Accept-language'),
|
|
vary_on_cookie,
|
|
|
|
# django.views.decorators.cache
|
|
cache_page(60*15),
|
|
cache_control(private=True),
|
|
never_cache,
|
|
|
|
# django.contrib.auth.decorators
|
|
# Apply user_passes_test twice to check #9474
|
|
user_passes_test(lambda u:True),
|
|
login_required,
|
|
permission_required('change_world'),
|
|
|
|
# django.contrib.admin.views.decorators
|
|
staff_member_required,
|
|
|
|
# django.utils.functional
|
|
lambda f: memoize(f, {}, 1),
|
|
allow_lazy,
|
|
lazy,
|
|
)
|
|
|
|
fully_decorated = full_decorator(fully_decorated)
|
|
|
|
class DecoratorsTest(TestCase):
|
|
|
|
def setUp(self):
|
|
self.warning_state = get_warnings_state()
|
|
warnings.filterwarnings('ignore', category=PendingDeprecationWarning,
|
|
module='django.views.decorators.cache')
|
|
|
|
def tearDown(self):
|
|
restore_warnings_state(self.warning_state)
|
|
|
|
def test_attributes(self):
|
|
"""
|
|
Tests that django decorators set certain attributes of the wrapped
|
|
function.
|
|
"""
|
|
self.assertEqual(fully_decorated.__name__, 'fully_decorated')
|
|
self.assertEqual(fully_decorated.__doc__, 'Expected __doc__')
|
|
self.assertEqual(fully_decorated.__dict__['anything'], 'Expected __dict__')
|
|
|
|
def test_user_passes_test_composition(self):
|
|
"""
|
|
Test that the user_passes_test decorator can be applied multiple times
|
|
(#9474).
|
|
"""
|
|
def test1(user):
|
|
user.decorators_applied.append('test1')
|
|
return True
|
|
|
|
def test2(user):
|
|
user.decorators_applied.append('test2')
|
|
return True
|
|
|
|
def callback(request):
|
|
return request.user.decorators_applied
|
|
|
|
callback = user_passes_test(test1)(callback)
|
|
callback = user_passes_test(test2)(callback)
|
|
|
|
class DummyUser(object): pass
|
|
class DummyRequest(object): pass
|
|
|
|
request = DummyRequest()
|
|
request.user = DummyUser()
|
|
request.user.decorators_applied = []
|
|
response = callback(request)
|
|
|
|
self.assertEqual(response, ['test2', 'test1'])
|
|
|
|
def test_cache_page_new_style(self):
|
|
"""
|
|
Test that we can call cache_page the new way
|
|
"""
|
|
def my_view(request):
|
|
return "response"
|
|
my_view_cached = cache_page(123)(my_view)
|
|
self.assertEqual(my_view_cached(HttpRequest()), "response")
|
|
my_view_cached2 = cache_page(123, key_prefix="test")(my_view)
|
|
self.assertEqual(my_view_cached2(HttpRequest()), "response")
|
|
|
|
def test_cache_page_old_style(self):
|
|
"""
|
|
Test that we can call cache_page the old way
|
|
"""
|
|
def my_view(request):
|
|
return "response"
|
|
my_view_cached = cache_page(my_view, 123)
|
|
self.assertEqual(my_view_cached(HttpRequest()), "response")
|
|
my_view_cached2 = cache_page(my_view, 123, key_prefix="test")
|
|
self.assertEqual(my_view_cached2(HttpRequest()), "response")
|
|
my_view_cached3 = cache_page(my_view)
|
|
self.assertEqual(my_view_cached3(HttpRequest()), "response")
|
|
my_view_cached4 = cache_page()(my_view)
|
|
self.assertEqual(my_view_cached4(HttpRequest()), "response")
|
|
|
|
def test_require_safe_accepts_only_safe_methods(self):
|
|
"""
|
|
Test for the require_safe decorator.
|
|
A view returns either a response or an exception.
|
|
Refs #15637.
|
|
"""
|
|
def my_view(request):
|
|
return HttpResponse("OK")
|
|
my_safe_view = require_safe(my_view)
|
|
request = HttpRequest()
|
|
request.method = 'GET'
|
|
self.assertTrue(isinstance(my_safe_view(request), HttpResponse))
|
|
request.method = 'HEAD'
|
|
self.assertTrue(isinstance(my_safe_view(request), HttpResponse))
|
|
request.method = 'POST'
|
|
self.assertTrue(isinstance(my_safe_view(request), HttpResponseNotAllowed))
|
|
request.method = 'PUT'
|
|
self.assertTrue(isinstance(my_safe_view(request), HttpResponseNotAllowed))
|
|
request.method = 'DELETE'
|
|
self.assertTrue(isinstance(my_safe_view(request), HttpResponseNotAllowed))
|
|
|
|
|
|
# For testing method_decorator, a decorator that assumes a single argument.
|
|
# We will get type arguments if there is a mismatch in the number of arguments.
|
|
def simple_dec(func):
|
|
def wrapper(arg):
|
|
return func("test:" + arg)
|
|
return wraps(func)(wrapper)
|
|
|
|
simple_dec_m = method_decorator(simple_dec)
|
|
|
|
|
|
# For testing method_decorator, two decorators that add an attribute to the function
|
|
def myattr_dec(func):
|
|
def wrapper(*args, **kwargs):
|
|
return func(*args, **kwargs)
|
|
wrapper.myattr = True
|
|
return wraps(func)(wrapper)
|
|
|
|
myattr_dec_m = method_decorator(myattr_dec)
|
|
|
|
|
|
def myattr2_dec(func):
|
|
def wrapper(*args, **kwargs):
|
|
return func(*args, **kwargs)
|
|
wrapper.myattr2 = True
|
|
return wraps(func)(wrapper)
|
|
|
|
myattr2_dec_m = method_decorator(myattr2_dec)
|
|
|
|
|
|
class MethodDecoratorTests(TestCase):
|
|
"""
|
|
Tests for method_decorator
|
|
"""
|
|
def test_preserve_signature(self):
|
|
class Test(object):
|
|
@simple_dec_m
|
|
def say(self, arg):
|
|
return arg
|
|
|
|
self.assertEqual("test:hello", Test().say("hello"))
|
|
|
|
def test_preserve_attributes(self):
|
|
# Sanity check myattr_dec and myattr2_dec
|
|
@myattr_dec
|
|
@myattr2_dec
|
|
def func():
|
|
pass
|
|
|
|
self.assertEqual(getattr(func, 'myattr', False), True)
|
|
self.assertEqual(getattr(func, 'myattr2', False), True)
|
|
|
|
# Now check method_decorator
|
|
class Test(object):
|
|
@myattr_dec_m
|
|
@myattr2_dec_m
|
|
def method(self):
|
|
"A method"
|
|
pass
|
|
|
|
self.assertEqual(getattr(Test().method, 'myattr', False), True)
|
|
self.assertEqual(getattr(Test().method, 'myattr2', False), True)
|
|
|
|
self.assertEqual(getattr(Test.method, 'myattr', False), True)
|
|
self.assertEqual(getattr(Test.method, 'myattr2', False), True)
|
|
|
|
self.assertEqual(Test.method.__doc__, 'A method')
|
|
self.assertEqual(Test.method.im_func.__name__, 'method')
|
|
|
|
|
|
class XFrameOptionsDecoratorsTests(TestCase):
|
|
"""
|
|
Tests for the X-Frame-Options decorators.
|
|
"""
|
|
def test_deny_decorator(self):
|
|
"""
|
|
Ensures @xframe_options_deny properly sets the X-Frame-Options header.
|
|
"""
|
|
@xframe_options_deny
|
|
def a_view(request):
|
|
return HttpResponse()
|
|
r = a_view(HttpRequest())
|
|
self.assertEqual(r['X-Frame-Options'], 'DENY')
|
|
|
|
def test_sameorigin_decorator(self):
|
|
"""
|
|
Ensures @xframe_options_sameorigin properly sets the X-Frame-Options
|
|
header.
|
|
"""
|
|
@xframe_options_sameorigin
|
|
def a_view(request):
|
|
return HttpResponse()
|
|
r = a_view(HttpRequest())
|
|
self.assertEqual(r['X-Frame-Options'], 'SAMEORIGIN')
|
|
|
|
def test_exempt_decorator(self):
|
|
"""
|
|
Ensures @xframe_options_exempt properly instructs the
|
|
XFrameOptionsMiddleware to NOT set the header.
|
|
"""
|
|
@xframe_options_exempt
|
|
def a_view(request):
|
|
return HttpResponse()
|
|
req = HttpRequest()
|
|
resp = a_view(req)
|
|
self.assertEqual(resp.get('X-Frame-Options', None), None)
|
|
self.assertTrue(resp.xframe_options_exempt)
|
|
|
|
# Since the real purpose of the exempt decorator is to suppress
|
|
# the middleware's functionality, let's make sure it actually works...
|
|
r = XFrameOptionsMiddleware().process_response(req, resp)
|
|
self.assertEqual(r.get('X-Frame-Options', None), None)
|