504 lines
21 KiB
Python
504 lines
21 KiB
Python
from __future__ import unicode_literals
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import time
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import warnings
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from datetime import datetime, timedelta
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from io import BytesIO
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from django.core.exceptions import SuspiciousOperation
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from django.core.handlers.wsgi import WSGIRequest, LimitedStream
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from django.http import HttpRequest, HttpResponse, parse_cookie, build_request_repr, UnreadablePostError
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from django.test.client import FakePayload
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from django.test.utils import override_settings, str_prefix
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from django.utils import unittest
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from django.utils.http import cookie_date
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from django.utils.timezone import utc
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class RequestsTests(unittest.TestCase):
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def test_httprequest(self):
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request = HttpRequest()
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self.assertEqual(list(request.GET.keys()), [])
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self.assertEqual(list(request.POST.keys()), [])
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self.assertEqual(list(request.COOKIES.keys()), [])
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self.assertEqual(list(request.META.keys()), [])
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def test_httprequest_repr(self):
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request = HttpRequest()
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request.path = '/somepath/'
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request.GET = {'get-key': 'get-value'}
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request.POST = {'post-key': 'post-value'}
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request.COOKIES = {'post-key': 'post-value'}
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request.META = {'post-key': 'post-value'}
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self.assertEqual(repr(request), str_prefix("<HttpRequest\npath:/somepath/,\nGET:{%(_)s'get-key': %(_)s'get-value'},\nPOST:{%(_)s'post-key': %(_)s'post-value'},\nCOOKIES:{%(_)s'post-key': %(_)s'post-value'},\nMETA:{%(_)s'post-key': %(_)s'post-value'}>"))
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self.assertEqual(build_request_repr(request), repr(request))
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self.assertEqual(build_request_repr(request, path_override='/otherpath/', GET_override={'a': 'b'}, POST_override={'c': 'd'}, COOKIES_override={'e': 'f'}, META_override={'g': 'h'}),
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str_prefix("<HttpRequest\npath:/otherpath/,\nGET:{%(_)s'a': %(_)s'b'},\nPOST:{%(_)s'c': %(_)s'd'},\nCOOKIES:{%(_)s'e': %(_)s'f'},\nMETA:{%(_)s'g': %(_)s'h'}>"))
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def test_wsgirequest(self):
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request = WSGIRequest({'PATH_INFO': 'bogus', 'REQUEST_METHOD': 'bogus', 'wsgi.input': BytesIO(b'')})
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self.assertEqual(list(request.GET.keys()), [])
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self.assertEqual(list(request.POST.keys()), [])
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self.assertEqual(list(request.COOKIES.keys()), [])
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self.assertEqual(set(request.META.keys()), set(['PATH_INFO', 'REQUEST_METHOD', 'SCRIPT_NAME', 'wsgi.input']))
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self.assertEqual(request.META['PATH_INFO'], 'bogus')
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self.assertEqual(request.META['REQUEST_METHOD'], 'bogus')
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self.assertEqual(request.META['SCRIPT_NAME'], '')
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def test_wsgirequest_repr(self):
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request = WSGIRequest({'PATH_INFO': '/somepath/', 'REQUEST_METHOD': 'get', 'wsgi.input': BytesIO(b'')})
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request.GET = {'get-key': 'get-value'}
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request.POST = {'post-key': 'post-value'}
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request.COOKIES = {'post-key': 'post-value'}
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request.META = {'post-key': 'post-value'}
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self.assertEqual(repr(request), str_prefix("<WSGIRequest\npath:/somepath/,\nGET:{%(_)s'get-key': %(_)s'get-value'},\nPOST:{%(_)s'post-key': %(_)s'post-value'},\nCOOKIES:{%(_)s'post-key': %(_)s'post-value'},\nMETA:{%(_)s'post-key': %(_)s'post-value'}>"))
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self.assertEqual(build_request_repr(request), repr(request))
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self.assertEqual(build_request_repr(request, path_override='/otherpath/', GET_override={'a': 'b'}, POST_override={'c': 'd'}, COOKIES_override={'e': 'f'}, META_override={'g': 'h'}),
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str_prefix("<WSGIRequest\npath:/otherpath/,\nGET:{%(_)s'a': %(_)s'b'},\nPOST:{%(_)s'c': %(_)s'd'},\nCOOKIES:{%(_)s'e': %(_)s'f'},\nMETA:{%(_)s'g': %(_)s'h'}>"))
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def test_parse_cookie(self):
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self.assertEqual(parse_cookie('invalid:key=true'), {})
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def test_httprequest_location(self):
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request = HttpRequest()
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self.assertEqual(request.build_absolute_uri(location="https://www.example.com/asdf"),
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'https://www.example.com/asdf')
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request.get_host = lambda: 'www.example.com'
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request.path = ''
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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(USE_X_FORWARDED_HOST=False)
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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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]
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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:someone@somestie.com:80',
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'example.com:80/badpath'
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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)
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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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]
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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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]
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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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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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# There is a timing weakness in this test; The
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# expected result for max-age requires that there be
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# a very slight difference between the evaluated expiration
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# time, and the time evaluated in set_cookie(). If this
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# difference doesn't exist, the cookie time will be
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# 1 second larger. To avoid the problem, put in a quick sleep,
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# which guarantees that there will be a time difference.
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expires = datetime.utcnow() + timedelta(seconds=10)
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time.sleep(0.001)
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response.set_cookie('datetime', expires=expires)
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datetime_cookie = response.cookies['datetime']
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self.assertEqual(datetime_cookie['max-age'], 10)
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def test_aware_expiration(self):
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"Cookie accepts an aware datetime as expiration time"
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response = HttpResponse()
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expires = (datetime.utcnow() + timedelta(seconds=10)).replace(tzinfo=utc)
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time.sleep(0.001)
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response.set_cookie('datetime', expires=expires)
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datetime_cookie = response.cookies['datetime']
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self.assertEqual(datetime_cookie['max-age'], 10)
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def test_far_expiration(self):
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"Cookie will expire when an distant expiration time is provided"
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response = HttpResponse()
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response.set_cookie('datetime', expires=datetime(2028, 1, 1, 4, 5, 6))
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datetime_cookie = response.cookies['datetime']
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self.assertEqual(datetime_cookie['expires'], 'Sat, 01-Jan-2028 04:05:06 GMT')
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def test_max_age_expiration(self):
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"Cookie will expire if max_age is provided"
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response = HttpResponse()
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response.set_cookie('max_age', max_age=10)
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max_age_cookie = response.cookies['max_age']
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self.assertEqual(max_age_cookie['max-age'], 10)
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self.assertEqual(max_age_cookie['expires'], cookie_date(time.time()+10))
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def test_httponly_cookie(self):
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response = HttpResponse()
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response.set_cookie('example', httponly=True)
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example_cookie = response.cookies['example']
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# A compat cookie may be in use -- check that it has worked
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# both as an output string, and using the cookie attributes
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self.assertTrue('; httponly' in str(example_cookie))
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self.assertTrue(example_cookie['httponly'])
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def test_limited_stream(self):
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# Read all of a limited stream
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stream = LimitedStream(BytesIO(b'test'), 2)
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self.assertEqual(stream.read(), b'te')
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# Reading again returns nothing.
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self.assertEqual(stream.read(), b'')
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# Read a number of characters greater than the stream has to offer
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stream = LimitedStream(BytesIO(b'test'), 2)
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self.assertEqual(stream.read(5), b'te')
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# Reading again returns nothing.
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self.assertEqual(stream.readline(5), b'')
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# Read sequentially from a stream
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stream = LimitedStream(BytesIO(b'12345678'), 8)
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self.assertEqual(stream.read(5), b'12345')
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self.assertEqual(stream.read(5), b'678')
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# Reading again returns nothing.
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self.assertEqual(stream.readline(5), b'')
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# Read lines from a stream
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stream = LimitedStream(BytesIO(b'1234\n5678\nabcd\nefgh\nijkl'), 24)
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# Read a full line, unconditionally
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self.assertEqual(stream.readline(), b'1234\n')
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# Read a number of characters less than a line
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self.assertEqual(stream.readline(2), b'56')
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# Read the rest of the partial line
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self.assertEqual(stream.readline(), b'78\n')
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# Read a full line, with a character limit greater than the line length
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self.assertEqual(stream.readline(6), b'abcd\n')
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# Read the next line, deliberately terminated at the line end
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self.assertEqual(stream.readline(4), b'efgh')
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# Read the next line... just the line end
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self.assertEqual(stream.readline(), b'\n')
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# Read everything else.
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self.assertEqual(stream.readline(), b'ijkl')
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# Regression for #15018
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# If a stream contains a newline, but the provided length
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# is less than the number of provided characters, the newline
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# doesn't reset the available character count
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stream = LimitedStream(BytesIO(b'1234\nabcdef'), 9)
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self.assertEqual(stream.readline(10), b'1234\n')
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self.assertEqual(stream.readline(3), b'abc')
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# Now expire the available characters
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self.assertEqual(stream.readline(3), b'd')
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# Reading again returns nothing.
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self.assertEqual(stream.readline(2), b'')
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# Same test, but with read, not readline.
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stream = LimitedStream(BytesIO(b'1234\nabcdef'), 9)
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self.assertEqual(stream.read(6), b'1234\na')
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self.assertEqual(stream.read(2), b'bc')
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self.assertEqual(stream.read(2), b'd')
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self.assertEqual(stream.read(2), b'')
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self.assertEqual(stream.read(), b'')
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def test_stream(self):
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payload = FakePayload('name=value')
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request = WSGIRequest({'REQUEST_METHOD': 'POST',
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'CONTENT_TYPE': 'application/x-www-form-urlencoded',
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'CONTENT_LENGTH': len(payload),
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'wsgi.input': payload})
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self.assertEqual(request.read(), b'name=value')
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def test_read_after_value(self):
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"""
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Reading from request is allowed after accessing request contents as
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POST or body.
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"""
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payload = FakePayload('name=value')
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request = WSGIRequest({'REQUEST_METHOD': 'POST',
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'CONTENT_TYPE': 'application/x-www-form-urlencoded',
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'CONTENT_LENGTH': len(payload),
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'wsgi.input': payload})
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self.assertEqual(request.POST, {'name': ['value']})
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self.assertEqual(request.body, b'name=value')
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self.assertEqual(request.read(), b'name=value')
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def test_value_after_read(self):
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"""
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Construction of POST or body is not allowed after reading
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from request.
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"""
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payload = FakePayload('name=value')
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request = WSGIRequest({'REQUEST_METHOD': 'POST',
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'CONTENT_TYPE': 'application/x-www-form-urlencoded',
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'CONTENT_LENGTH': len(payload),
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'wsgi.input': payload})
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self.assertEqual(request.read(2), b'na')
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self.assertRaises(Exception, lambda: request.body)
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self.assertEqual(request.POST, {})
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def test_body_after_POST_multipart(self):
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"""
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Reading body after parsing multipart is not allowed
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"""
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# Because multipart is used for large amounts fo data i.e. file uploads,
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# we don't want the data held in memory twice, and we don't want to
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# silence the error by setting body = '' either.
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payload = FakePayload("\r\n".join([
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'--boundary',
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'Content-Disposition: form-data; name="name"',
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'',
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'value',
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'--boundary--'
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'']))
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request = WSGIRequest({'REQUEST_METHOD': 'POST',
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'CONTENT_TYPE': 'multipart/form-data; boundary=boundary',
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'CONTENT_LENGTH': len(payload),
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'wsgi.input': payload})
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self.assertEqual(request.POST, {'name': ['value']})
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self.assertRaises(Exception, lambda: request.body)
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def test_POST_multipart_with_content_length_zero(self):
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"""
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Multipart POST requests with Content-Length >= 0 are valid and need to be handled.
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"""
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# According to:
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# http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.13
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# Every request.POST with Content-Length >= 0 is a valid request,
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# this test ensures that we handle Content-Length == 0.
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payload = FakePayload("\r\n".join([
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'--boundary',
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'Content-Disposition: form-data; name="name"',
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'',
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'value',
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'--boundary--'
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'']))
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request = WSGIRequest({'REQUEST_METHOD': 'POST',
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'CONTENT_TYPE': 'multipart/form-data; boundary=boundary',
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'CONTENT_LENGTH': 0,
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'wsgi.input': payload})
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self.assertEqual(request.POST, {})
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def test_POST_binary_only(self):
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payload = b'\r\n\x01\x00\x00\x00ab\x00\x00\xcd\xcc,@'
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environ = {'REQUEST_METHOD': 'POST',
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'CONTENT_TYPE': 'application/octet-stream',
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'CONTENT_LENGTH': len(payload),
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'wsgi.input': BytesIO(payload)}
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request = WSGIRequest(environ)
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self.assertEqual(request.POST, {})
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self.assertEqual(request.FILES, {})
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self.assertEqual(request.body, payload)
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# Same test without specifying content-type
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environ.update({'CONTENT_TYPE': '', 'wsgi.input': BytesIO(payload)})
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request = WSGIRequest(environ)
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self.assertEqual(request.POST, {})
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self.assertEqual(request.FILES, {})
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self.assertEqual(request.body, payload)
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def test_read_by_lines(self):
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payload = FakePayload('name=value')
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request = WSGIRequest({'REQUEST_METHOD': 'POST',
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'CONTENT_TYPE': 'application/x-www-form-urlencoded',
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'CONTENT_LENGTH': len(payload),
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'wsgi.input': payload})
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self.assertEqual(list(request), [b'name=value'])
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def test_POST_after_body_read(self):
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"""
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POST should be populated even if body is read first
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"""
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payload = FakePayload('name=value')
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request = WSGIRequest({'REQUEST_METHOD': 'POST',
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'CONTENT_TYPE': 'application/x-www-form-urlencoded',
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'CONTENT_LENGTH': len(payload),
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'wsgi.input': payload})
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raw_data = request.body
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self.assertEqual(request.POST, {'name': ['value']})
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def test_POST_after_body_read_and_stream_read(self):
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"""
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POST should be populated even if body is read first, and then
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the stream is read second.
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"""
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payload = FakePayload('name=value')
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request = WSGIRequest({'REQUEST_METHOD': 'POST',
|
|
'CONTENT_TYPE': 'application/x-www-form-urlencoded',
|
|
'CONTENT_LENGTH': len(payload),
|
|
'wsgi.input': payload})
|
|
raw_data = request.body
|
|
self.assertEqual(request.read(1), b'n')
|
|
self.assertEqual(request.POST, {'name': ['value']})
|
|
|
|
def test_POST_after_body_read_and_stream_read_multipart(self):
|
|
"""
|
|
POST should be populated even if body is read first, and then
|
|
the stream is read second. Using multipart/form-data instead of urlencoded.
|
|
"""
|
|
payload = FakePayload("\r\n".join([
|
|
'--boundary',
|
|
'Content-Disposition: form-data; name="name"',
|
|
'',
|
|
'value',
|
|
'--boundary--'
|
|
'']))
|
|
request = WSGIRequest({'REQUEST_METHOD': 'POST',
|
|
'CONTENT_TYPE': 'multipart/form-data; boundary=boundary',
|
|
'CONTENT_LENGTH': len(payload),
|
|
'wsgi.input': payload})
|
|
raw_data = request.body
|
|
# Consume enough data to mess up the parsing:
|
|
self.assertEqual(request.read(13), b'--boundary\r\nC')
|
|
self.assertEqual(request.POST, {'name': ['value']})
|
|
|
|
def test_raw_post_data_returns_body(self):
|
|
"""
|
|
HttpRequest.raw_post_body should be the same as HttpRequest.body
|
|
"""
|
|
payload = FakePayload('Hello There!')
|
|
request = WSGIRequest({
|
|
'REQUEST_METHOD': 'POST',
|
|
'CONTENT_LENGTH': len(payload),
|
|
'wsgi.input': payload,
|
|
})
|
|
|
|
with warnings.catch_warnings(record=True):
|
|
self.assertEqual(request.body, request.raw_post_data)
|
|
|
|
def test_POST_connection_error(self):
|
|
"""
|
|
If wsgi.input.read() raises an exception while trying to read() the
|
|
POST, the exception should be identifiable (not a generic IOError).
|
|
"""
|
|
class ExplodingBytesIO(BytesIO):
|
|
def read(self, len=0):
|
|
raise IOError("kaboom!")
|
|
|
|
payload = b'name=value'
|
|
request = WSGIRequest({'REQUEST_METHOD': 'POST',
|
|
'CONTENT_TYPE': 'application/x-www-form-urlencoded',
|
|
'CONTENT_LENGTH': len(payload),
|
|
'wsgi.input': ExplodingBytesIO(payload)})
|
|
|
|
with warnings.catch_warnings(record=True) as w:
|
|
warnings.simplefilter("always")
|
|
with self.assertRaises(UnreadablePostError):
|
|
request.raw_post_data
|
|
self.assertEqual(len(w), 1)
|