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# -*- coding: utf-8 -*-
from __future__ import unicode_literals
from django.core.handlers.wsgi import WSGIHandler, WSGIRequest
from django.core.signals import request_started, request_finished
from django.db import close_old_connections, connection
from django.test import RequestFactory, TestCase, TransactionTestCase
from django.test import override_settings
from django.utils.encoding import force_str
from django.utils import six
class HandlerTests(TestCase):
def setUp(self):
request_started.disconnect(close_old_connections)
def tearDown(self):
request_started.connect(close_old_connections)
# Mangle settings so the handler will fail
@override_settings(MIDDLEWARE_CLASSES=42)
def test_lock_safety(self):
"""
Tests for bug #11193 (errors inside middleware shouldn't leave
the initLock locked).
"""
# Try running the handler, it will fail in load_middleware
handler = WSGIHandler()
self.assertEqual(handler.initLock.locked(), False)
with self.assertRaises(Exception):
handler(None, None)
self.assertEqual(handler.initLock.locked(), False)
def test_bad_path_info(self):
"""Tests for bug #15672 ('request' referenced before assignment)"""
environ = RequestFactory().get('/').environ
environ['PATH_INFO'] = b'\xed' if six.PY2 else '\xed'
handler = WSGIHandler()
response = handler(environ, lambda *a, **k: None)
self.assertEqual(response.status_code, 400)
def test_non_ascii_query_string(self):
"""
Test that non-ASCII query strings are properly decoded (#20530, #22996).
"""
environ = RequestFactory().get('/').environ
raw_query_strings = [
b'want=caf%C3%A9', # This is the proper way to encode 'café'
b'want=caf\xc3\xa9', # UA forgot to quote bytes
b'want=caf%E9', # UA quoted, but not in UTF-8
b'want=caf\xe9', # UA forgot to convert Latin-1 to UTF-8 and to quote (typical of MSIE)
]
got = []
for raw_query_string in raw_query_strings:
if six.PY3:
# Simulate http.server.BaseHTTPRequestHandler.parse_request handling of raw request
environ['QUERY_STRING'] = str(raw_query_string, 'iso-8859-1')
else:
environ['QUERY_STRING'] = raw_query_string
request = WSGIRequest(environ)
got.append(request.GET['want'])
if six.PY2:
self.assertListEqual(got, ['café', 'café', 'café', 'café'])
else:
# On Python 3, %E9 is converted to the unicode replacement character by parse_qsl
self.assertListEqual(got, ['café', 'café', 'caf\ufffd', 'café'])
def test_non_ascii_cookie(self):
"""Test that non-ASCII cookies set in JavaScript are properly decoded (#20557)."""
environ = RequestFactory().get('/').environ
raw_cookie = 'want="café"'
if six.PY3:
raw_cookie = raw_cookie.encode('utf-8').decode('iso-8859-1')
environ['HTTP_COOKIE'] = raw_cookie
request = WSGIRequest(environ)
# If would be nicer if request.COOKIES returned unicode values.
# However the current cookie parser doesn't do this and fixing it is
# much more work than fixing #20557. Feel free to remove force_str()!
self.assertEqual(request.COOKIES['want'], force_str("café"))
def test_invalid_unicode_cookie(self):
"""
Invalid cookie content should result in an absent cookie, but not in a
crash while trying to decode it (#23638).
"""
environ = RequestFactory().get('/').environ
environ['HTTP_COOKIE'] = 'x=W\x03c(h]\x8e'
request = WSGIRequest(environ)
# We don't test COOKIES content, as the result might differ between
# Python version because parsing invalid content became stricter in
# latest versions.
self.assertIsInstance(request.COOKIES, dict)
class TransactionsPerRequestTests(TransactionTestCase):
available_apps = []
urls = 'handlers.urls'
def test_no_transaction(self):
response = self.client.get('/in_transaction/')
self.assertContains(response, 'False')
def test_auto_transaction(self):
old_atomic_requests = connection.settings_dict['ATOMIC_REQUESTS']
try:
connection.settings_dict['ATOMIC_REQUESTS'] = True
response = self.client.get('/in_transaction/')
finally:
connection.settings_dict['ATOMIC_REQUESTS'] = old_atomic_requests
self.assertContains(response, 'True')
def test_no_auto_transaction(self):
old_atomic_requests = connection.settings_dict['ATOMIC_REQUESTS']
try:
connection.settings_dict['ATOMIC_REQUESTS'] = True
response = self.client.get('/not_in_transaction/')
finally:
connection.settings_dict['ATOMIC_REQUESTS'] = old_atomic_requests
self.assertContains(response, 'False')
class SignalsTests(TestCase):
urls = 'handlers.urls'
def setUp(self):
self.signals = []
request_started.connect(self.register_started)
request_finished.connect(self.register_finished)
def tearDown(self):
request_started.disconnect(self.register_started)
request_finished.disconnect(self.register_finished)
def register_started(self, **kwargs):
self.signals.append('started')
def register_finished(self, **kwargs):
self.signals.append('finished')
def test_request_signals(self):
response = self.client.get('/regular/')
self.assertEqual(self.signals, ['started', 'finished'])
self.assertEqual(response.content, b"regular content")
def test_request_signals_streaming_response(self):
response = self.client.get('/streaming/')
self.assertEqual(self.signals, ['started'])
self.assertEqual(b''.join(response.streaming_content), b"streaming content")
self.assertEqual(self.signals, ['started', 'finished'])
class HandlerSuspiciousOpsTest(TestCase):
urls = 'handlers.urls'
def test_suspiciousop_in_view_returns_400(self):
response = self.client.get('/suspicious/')
self.assertEqual(response.status_code, 400)
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