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Isolated host validation tests in own test case
This commit is contained in:
Claude Paroz
parent
f2cb94f1c0
commit
73f86f4441
1 changed files with 202 additions and 215 deletions
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@ -3,6 +3,7 @@ from __future__ import unicode_literals
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from datetime import datetime, timedelta
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from io import BytesIO
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from itertools import chain
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import time
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from unittest import skipIf
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import warnings
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@ -122,221 +123,6 @@ class RequestsTests(SimpleTestCase):
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self.assertEqual(request.build_absolute_uri(location="/path/with:colons"),
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'http://www.example.com/path/with:colons')
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@override_settings(
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USE_X_FORWARDED_HOST=False,
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ALLOWED_HOSTS=[
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'forward.com', 'example.com', 'internal.com', '12.34.56.78',
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'[2001:19f0:feee::dead:beef:cafe]', 'xn--4ca9at.com',
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'.multitenant.com', 'INSENSITIVE.com',
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])
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def test_http_get_host(self):
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# Check if X_FORWARDED_HOST is provided.
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request = HttpRequest()
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request.META = {
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'HTTP_X_FORWARDED_HOST': 'forward.com',
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'HTTP_HOST': 'example.com',
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'SERVER_NAME': 'internal.com',
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'SERVER_PORT': 80,
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}
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# X_FORWARDED_HOST is ignored.
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self.assertEqual(request.get_host(), 'example.com')
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# Check if X_FORWARDED_HOST isn't provided.
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request = HttpRequest()
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request.META = {
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'HTTP_HOST': 'example.com',
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'SERVER_NAME': 'internal.com',
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'SERVER_PORT': 80,
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}
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self.assertEqual(request.get_host(), 'example.com')
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# Check if HTTP_HOST isn't provided.
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request = HttpRequest()
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request.META = {
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'SERVER_NAME': 'internal.com',
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'SERVER_PORT': 80,
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}
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self.assertEqual(request.get_host(), 'internal.com')
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# Check if HTTP_HOST isn't provided, and we're on a nonstandard port
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request = HttpRequest()
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request.META = {
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'SERVER_NAME': 'internal.com',
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'SERVER_PORT': 8042,
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}
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self.assertEqual(request.get_host(), 'internal.com:8042')
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# Poisoned host headers are rejected as suspicious
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legit_hosts = [
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'example.com',
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'example.com:80',
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'12.34.56.78',
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'12.34.56.78:443',
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'[2001:19f0:feee::dead:beef:cafe]',
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'[2001:19f0:feee::dead:beef:cafe]:8080',
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'xn--4ca9at.com', # Punnycode for öäü.com
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'anything.multitenant.com',
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'multitenant.com',
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'insensitive.com',
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]
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poisoned_hosts = [
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'example.com@evil.tld',
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'example.com:dr.frankenstein@evil.tld',
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'example.com:dr.frankenstein@evil.tld:80',
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'example.com:80/badpath',
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'example.com: recovermypassword.com',
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'other.com', # not in ALLOWED_HOSTS
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]
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for host in legit_hosts:
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request = HttpRequest()
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request.META = {
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'HTTP_HOST': host,
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}
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request.get_host()
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for host in poisoned_hosts:
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with self.assertRaises(SuspiciousOperation):
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request = HttpRequest()
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request.META = {
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'HTTP_HOST': host,
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}
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request.get_host()
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@override_settings(USE_X_FORWARDED_HOST=True, ALLOWED_HOSTS=['*'])
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def test_http_get_host_with_x_forwarded_host(self):
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# Check if X_FORWARDED_HOST is provided.
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request = HttpRequest()
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request.META = {
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'HTTP_X_FORWARDED_HOST': 'forward.com',
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'HTTP_HOST': 'example.com',
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'SERVER_NAME': 'internal.com',
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'SERVER_PORT': 80,
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}
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# X_FORWARDED_HOST is obeyed.
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self.assertEqual(request.get_host(), 'forward.com')
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# Check if X_FORWARDED_HOST isn't provided.
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request = HttpRequest()
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request.META = {
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'HTTP_HOST': 'example.com',
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'SERVER_NAME': 'internal.com',
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'SERVER_PORT': 80,
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}
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self.assertEqual(request.get_host(), 'example.com')
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# Check if HTTP_HOST isn't provided.
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request = HttpRequest()
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request.META = {
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'SERVER_NAME': 'internal.com',
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'SERVER_PORT': 80,
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}
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self.assertEqual(request.get_host(), 'internal.com')
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# Check if HTTP_HOST isn't provided, and we're on a nonstandard port
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request = HttpRequest()
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request.META = {
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'SERVER_NAME': 'internal.com',
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'SERVER_PORT': 8042,
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}
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self.assertEqual(request.get_host(), 'internal.com:8042')
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# Poisoned host headers are rejected as suspicious
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legit_hosts = [
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'example.com',
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'example.com:80',
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'12.34.56.78',
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'12.34.56.78:443',
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'[2001:19f0:feee::dead:beef:cafe]',
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'[2001:19f0:feee::dead:beef:cafe]:8080',
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'xn--4ca9at.com', # Punnycode for öäü.com
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]
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poisoned_hosts = [
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'example.com@evil.tld',
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'example.com:dr.frankenstein@evil.tld',
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'example.com:dr.frankenstein@evil.tld:80',
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'example.com:80/badpath',
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'example.com: recovermypassword.com',
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]
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for host in legit_hosts:
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request = HttpRequest()
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request.META = {
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'HTTP_HOST': host,
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}
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request.get_host()
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for host in poisoned_hosts:
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with self.assertRaises(SuspiciousOperation):
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request = HttpRequest()
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request.META = {
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'HTTP_HOST': host,
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}
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request.get_host()
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@override_settings(DEBUG=True, ALLOWED_HOSTS=[])
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def test_host_validation_disabled_in_debug_mode(self):
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"""If ALLOWED_HOSTS is empty and DEBUG is True, all hosts pass."""
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request = HttpRequest()
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request.META = {
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'HTTP_HOST': 'example.com',
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}
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self.assertEqual(request.get_host(), 'example.com')
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@override_settings(ALLOWED_HOSTS=[])
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def test_get_host_suggestion_of_allowed_host(self):
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"""get_host() makes helpful suggestions if a valid-looking host is not in ALLOWED_HOSTS."""
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msg_invalid_host = "Invalid HTTP_HOST header: %r."
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msg_suggestion = msg_invalid_host + "You may need to add %r to ALLOWED_HOSTS."
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for host in [ # Valid-looking hosts
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'example.com',
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'12.34.56.78',
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'[2001:19f0:feee::dead:beef:cafe]',
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'xn--4ca9at.com', # Punnycode for öäü.com
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]:
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request = HttpRequest()
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request.META = {'HTTP_HOST': host}
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self.assertRaisesMessage(
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SuspiciousOperation,
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msg_suggestion % (host, host),
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request.get_host
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)
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for domain, port in [ # Valid-looking hosts with a port number
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('example.com', 80),
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('12.34.56.78', 443),
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('[2001:19f0:feee::dead:beef:cafe]', 8080),
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]:
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host = '%s:%s' % (domain, port)
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request = HttpRequest()
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request.META = {'HTTP_HOST': host}
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self.assertRaisesMessage(
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SuspiciousOperation,
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msg_suggestion % (host, domain),
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request.get_host
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)
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for host in [ # Invalid hosts
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'example.com@evil.tld',
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'example.com:dr.frankenstein@evil.tld',
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'example.com:dr.frankenstein@evil.tld:80',
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'example.com:80/badpath',
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'example.com: recovermypassword.com',
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]:
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request = HttpRequest()
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request.META = {'HTTP_HOST': host}
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self.assertRaisesMessage(
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SuspiciousOperation,
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msg_invalid_host % host,
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request.get_host
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)
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def test_near_expiration(self):
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"Cookie will expire when an near expiration time is provided"
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response = HttpResponse()
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@ -678,6 +464,207 @@ class RequestsTests(SimpleTestCase):
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request.FILES
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class HostValidationTests(SimpleTestCase):
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poisoned_hosts = [
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'example.com@evil.tld',
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'example.com:dr.frankenstein@evil.tld',
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'example.com:dr.frankenstein@evil.tld:80',
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'example.com:80/badpath',
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'example.com: recovermypassword.com',
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]
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@override_settings(
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USE_X_FORWARDED_HOST=False,
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ALLOWED_HOSTS=[
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'forward.com', 'example.com', 'internal.com', '12.34.56.78',
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'[2001:19f0:feee::dead:beef:cafe]', 'xn--4ca9at.com',
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'.multitenant.com', 'INSENSITIVE.com',
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])
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def test_http_get_host(self):
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# Check if X_FORWARDED_HOST is provided.
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request = HttpRequest()
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request.META = {
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'HTTP_X_FORWARDED_HOST': 'forward.com',
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'HTTP_HOST': 'example.com',
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'SERVER_NAME': 'internal.com',
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'SERVER_PORT': 80,
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}
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# X_FORWARDED_HOST is ignored.
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self.assertEqual(request.get_host(), 'example.com')
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# Check if X_FORWARDED_HOST isn't provided.
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request = HttpRequest()
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request.META = {
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'HTTP_HOST': 'example.com',
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'SERVER_NAME': 'internal.com',
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'SERVER_PORT': 80,
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}
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self.assertEqual(request.get_host(), 'example.com')
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# Check if HTTP_HOST isn't provided.
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request = HttpRequest()
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request.META = {
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'SERVER_NAME': 'internal.com',
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'SERVER_PORT': 80,
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}
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self.assertEqual(request.get_host(), 'internal.com')
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# Check if HTTP_HOST isn't provided, and we're on a nonstandard port
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request = HttpRequest()
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request.META = {
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'SERVER_NAME': 'internal.com',
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'SERVER_PORT': 8042,
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}
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self.assertEqual(request.get_host(), 'internal.com:8042')
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legit_hosts = [
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'example.com',
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'example.com:80',
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'12.34.56.78',
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'12.34.56.78:443',
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'[2001:19f0:feee::dead:beef:cafe]',
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'[2001:19f0:feee::dead:beef:cafe]:8080',
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'xn--4ca9at.com', # Punnycode for öäü.com
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'anything.multitenant.com',
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'multitenant.com',
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'insensitive.com',
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]
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for host in legit_hosts:
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request = HttpRequest()
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request.META = {
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'HTTP_HOST': host,
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}
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request.get_host()
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# Poisoned host headers are rejected as suspicious
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for host in chain(self.poisoned_hosts, ['other.com']):
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with self.assertRaises(SuspiciousOperation):
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request = HttpRequest()
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request.META = {
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'HTTP_HOST': host,
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}
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request.get_host()
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@override_settings(USE_X_FORWARDED_HOST=True, ALLOWED_HOSTS=['*'])
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def test_http_get_host_with_x_forwarded_host(self):
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# Check if X_FORWARDED_HOST is provided.
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request = HttpRequest()
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request.META = {
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'HTTP_X_FORWARDED_HOST': 'forward.com',
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'HTTP_HOST': 'example.com',
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'SERVER_NAME': 'internal.com',
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'SERVER_PORT': 80,
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}
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# X_FORWARDED_HOST is obeyed.
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self.assertEqual(request.get_host(), 'forward.com')
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# Check if X_FORWARDED_HOST isn't provided.
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request = HttpRequest()
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request.META = {
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'HTTP_HOST': 'example.com',
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'SERVER_NAME': 'internal.com',
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'SERVER_PORT': 80,
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}
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self.assertEqual(request.get_host(), 'example.com')
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# Check if HTTP_HOST isn't provided.
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request = HttpRequest()
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request.META = {
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'SERVER_NAME': 'internal.com',
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'SERVER_PORT': 80,
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}
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self.assertEqual(request.get_host(), 'internal.com')
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# Check if HTTP_HOST isn't provided, and we're on a nonstandard port
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request = HttpRequest()
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request.META = {
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'SERVER_NAME': 'internal.com',
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'SERVER_PORT': 8042,
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}
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self.assertEqual(request.get_host(), 'internal.com:8042')
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# Poisoned host headers are rejected as suspicious
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legit_hosts = [
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'example.com',
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'example.com:80',
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'12.34.56.78',
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'12.34.56.78:443',
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'[2001:19f0:feee::dead:beef:cafe]',
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'[2001:19f0:feee::dead:beef:cafe]:8080',
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'xn--4ca9at.com', # Punnycode for öäü.com
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]
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for host in legit_hosts:
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request = HttpRequest()
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request.META = {
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'HTTP_HOST': host,
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}
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request.get_host()
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for host in self.poisoned_hosts:
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with self.assertRaises(SuspiciousOperation):
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request = HttpRequest()
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request.META = {
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'HTTP_HOST': host,
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}
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request.get_host()
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@override_settings(DEBUG=True, ALLOWED_HOSTS=[])
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def test_host_validation_disabled_in_debug_mode(self):
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"""If ALLOWED_HOSTS is empty and DEBUG is True, all hosts pass."""
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request = HttpRequest()
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request.META = {
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'HTTP_HOST': 'example.com',
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}
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self.assertEqual(request.get_host(), 'example.com')
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@override_settings(ALLOWED_HOSTS=[])
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def test_get_host_suggestion_of_allowed_host(self):
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"""get_host() makes helpful suggestions if a valid-looking host is not in ALLOWED_HOSTS."""
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msg_invalid_host = "Invalid HTTP_HOST header: %r."
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msg_suggestion = msg_invalid_host + "You may need to add %r to ALLOWED_HOSTS."
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for host in [ # Valid-looking hosts
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'example.com',
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'12.34.56.78',
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'[2001:19f0:feee::dead:beef:cafe]',
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'xn--4ca9at.com', # Punnycode for öäü.com
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]:
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request = HttpRequest()
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request.META = {'HTTP_HOST': host}
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self.assertRaisesMessage(
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SuspiciousOperation,
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msg_suggestion % (host, host),
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request.get_host
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)
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for domain, port in [ # Valid-looking hosts with a port number
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('example.com', 80),
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('12.34.56.78', 443),
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('[2001:19f0:feee::dead:beef:cafe]', 8080),
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]:
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host = '%s:%s' % (domain, port)
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request = HttpRequest()
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request.META = {'HTTP_HOST': host}
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self.assertRaisesMessage(
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SuspiciousOperation,
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msg_suggestion % (host, domain),
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request.get_host
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)
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for host in self.poisoned_hosts:
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request = HttpRequest()
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request.META = {'HTTP_HOST': host}
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self.assertRaisesMessage(
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SuspiciousOperation,
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msg_invalid_host % host,
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request.get_host
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)
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@skipIf(connection.vendor == 'sqlite'
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and connection.settings_dict['TEST_NAME'] in (None, '', ':memory:'),
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"Cannot establish two connections to an in-memory SQLite database.")
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