import copy
import json
import os
import pickle
import unittest
import uuid
from django.core.exceptions import DisallowedRedirect
from django.core.serializers.json import DjangoJSONEncoder
from django.core.signals import request_finished
from django.db import close_old_connections
from django.http import (
BadHeaderError,
HttpResponse,
HttpResponseNotAllowed,
HttpResponseNotModified,
HttpResponsePermanentRedirect,
HttpResponseRedirect,
JsonResponse,
QueryDict,
SimpleCookie,
StreamingHttpResponse,
parse_cookie,
)
from django.test import SimpleTestCase
from django.utils.functional import lazystr
class QueryDictTests(SimpleTestCase):
def test_create_with_no_args(self):
self.assertEqual(QueryDict(), QueryDict(""))
def test_missing_key(self):
q = QueryDict()
with self.assertRaises(KeyError):
q.__getitem__("foo")
def test_immutability(self):
q = QueryDict()
with self.assertRaises(AttributeError):
q.__setitem__("something", "bar")
with self.assertRaises(AttributeError):
q.setlist("foo", ["bar"])
with self.assertRaises(AttributeError):
q.appendlist("foo", ["bar"])
with self.assertRaises(AttributeError):
q.update({"foo": "bar"})
with self.assertRaises(AttributeError):
q.pop("foo")
with self.assertRaises(AttributeError):
q.popitem()
with self.assertRaises(AttributeError):
q.clear()
def test_immutable_get_with_default(self):
q = QueryDict()
self.assertEqual(q.get("foo", "default"), "default")
def test_immutable_basic_operations(self):
q = QueryDict()
self.assertEqual(q.getlist("foo"), [])
self.assertNotIn("foo", q)
self.assertEqual(list(q), [])
self.assertEqual(list(q.items()), [])
self.assertEqual(list(q.lists()), [])
self.assertEqual(list(q.keys()), [])
self.assertEqual(list(q.values()), [])
self.assertEqual(len(q), 0)
self.assertEqual(q.urlencode(), "")
def test_single_key_value(self):
"""Test QueryDict with one key/value pair"""
q = QueryDict("foo=bar")
self.assertEqual(q["foo"], "bar")
with self.assertRaises(KeyError):
q.__getitem__("bar")
with self.assertRaises(AttributeError):
q.__setitem__("something", "bar")
self.assertEqual(q.get("foo", "default"), "bar")
self.assertEqual(q.get("bar", "default"), "default")
self.assertEqual(q.getlist("foo"), ["bar"])
self.assertEqual(q.getlist("bar"), [])
with self.assertRaises(AttributeError):
q.setlist("foo", ["bar"])
with self.assertRaises(AttributeError):
q.appendlist("foo", ["bar"])
self.assertIn("foo", q)
self.assertNotIn("bar", q)
self.assertEqual(list(q), ["foo"])
self.assertEqual(list(q.items()), [("foo", "bar")])
self.assertEqual(list(q.lists()), [("foo", ["bar"])])
self.assertEqual(list(q.keys()), ["foo"])
self.assertEqual(list(q.values()), ["bar"])
self.assertEqual(len(q), 1)
with self.assertRaises(AttributeError):
q.update({"foo": "bar"})
with self.assertRaises(AttributeError):
q.pop("foo")
with self.assertRaises(AttributeError):
q.popitem()
with self.assertRaises(AttributeError):
q.clear()
with self.assertRaises(AttributeError):
q.setdefault("foo", "bar")
self.assertEqual(q.urlencode(), "foo=bar")
def test_urlencode(self):
q = QueryDict(mutable=True)
q["next"] = "/a&b/"
self.assertEqual(q.urlencode(), "next=%2Fa%26b%2F")
self.assertEqual(q.urlencode(safe="/"), "next=/a%26b/")
q = QueryDict(mutable=True)
q["next"] = "/t\xebst&key/"
self.assertEqual(q.urlencode(), "next=%2Ft%C3%ABst%26key%2F")
self.assertEqual(q.urlencode(safe="/"), "next=/t%C3%ABst%26key/")
def test_urlencode_int(self):
# Normally QueryDict doesn't contain non-string values but lazily
# written tests may make that mistake.
q = QueryDict(mutable=True)
q["a"] = 1
self.assertEqual(q.urlencode(), "a=1")
def test_mutable_copy(self):
"""A copy of a QueryDict is mutable."""
q = QueryDict().copy()
with self.assertRaises(KeyError):
q.__getitem__("foo")
q["name"] = "john"
self.assertEqual(q["name"], "john")
def test_mutable_delete(self):
q = QueryDict(mutable=True)
q["name"] = "john"
del q["name"]
self.assertNotIn("name", q)
def test_basic_mutable_operations(self):
q = QueryDict(mutable=True)
q["name"] = "john"
self.assertEqual(q.get("foo", "default"), "default")
self.assertEqual(q.get("name", "default"), "john")
self.assertEqual(q.getlist("name"), ["john"])
self.assertEqual(q.getlist("foo"), [])
q.setlist("foo", ["bar", "baz"])
self.assertEqual(q.get("foo", "default"), "baz")
self.assertEqual(q.getlist("foo"), ["bar", "baz"])
q.appendlist("foo", "another")
self.assertEqual(q.getlist("foo"), ["bar", "baz", "another"])
self.assertEqual(q["foo"], "another")
self.assertIn("foo", q)
self.assertCountEqual(q, ["foo", "name"])
self.assertCountEqual(q.items(), [("foo", "another"), ("name", "john")])
self.assertCountEqual(
q.lists(), [("foo", ["bar", "baz", "another"]), ("name", ["john"])]
)
self.assertCountEqual(q.keys(), ["foo", "name"])
self.assertCountEqual(q.values(), ["another", "john"])
q.update({"foo": "hello"})
self.assertEqual(q["foo"], "hello")
self.assertEqual(q.get("foo", "not available"), "hello")
self.assertEqual(q.getlist("foo"), ["bar", "baz", "another", "hello"])
self.assertEqual(q.pop("foo"), ["bar", "baz", "another", "hello"])
self.assertEqual(q.pop("foo", "not there"), "not there")
self.assertEqual(q.get("foo", "not there"), "not there")
self.assertEqual(q.setdefault("foo", "bar"), "bar")
self.assertEqual(q["foo"], "bar")
self.assertEqual(q.getlist("foo"), ["bar"])
self.assertIn(q.urlencode(), ["foo=bar&name=john", "name=john&foo=bar"])
q.clear()
self.assertEqual(len(q), 0)
def test_multiple_keys(self):
"""Test QueryDict with two key/value pairs with same keys."""
q = QueryDict("vote=yes&vote=no")
self.assertEqual(q["vote"], "no")
with self.assertRaises(AttributeError):
q.__setitem__("something", "bar")
self.assertEqual(q.get("vote", "default"), "no")
self.assertEqual(q.get("foo", "default"), "default")
self.assertEqual(q.getlist("vote"), ["yes", "no"])
self.assertEqual(q.getlist("foo"), [])
with self.assertRaises(AttributeError):
q.setlist("foo", ["bar", "baz"])
with self.assertRaises(AttributeError):
q.setlist("foo", ["bar", "baz"])
with self.assertRaises(AttributeError):
q.appendlist("foo", ["bar"])
self.assertIn("vote", q)
self.assertNotIn("foo", q)
self.assertEqual(list(q), ["vote"])
self.assertEqual(list(q.items()), [("vote", "no")])
self.assertEqual(list(q.lists()), [("vote", ["yes", "no"])])
self.assertEqual(list(q.keys()), ["vote"])
self.assertEqual(list(q.values()), ["no"])
self.assertEqual(len(q), 1)
with self.assertRaises(AttributeError):
q.update({"foo": "bar"})
with self.assertRaises(AttributeError):
q.pop("foo")
with self.assertRaises(AttributeError):
q.popitem()
with self.assertRaises(AttributeError):
q.clear()
with self.assertRaises(AttributeError):
q.setdefault("foo", "bar")
with self.assertRaises(AttributeError):
q.__delitem__("vote")
def test_pickle(self):
q = QueryDict()
q1 = pickle.loads(pickle.dumps(q, 2))
self.assertEqual(q, q1)
q = QueryDict("a=b&c=d")
q1 = pickle.loads(pickle.dumps(q, 2))
self.assertEqual(q, q1)
q = QueryDict("a=b&c=d&a=1")
q1 = pickle.loads(pickle.dumps(q, 2))
self.assertEqual(q, q1)
def test_update_from_querydict(self):
"""Regression test for #8278: QueryDict.update(QueryDict)"""
x = QueryDict("a=1&a=2", mutable=True)
y = QueryDict("a=3&a=4")
x.update(y)
self.assertEqual(x.getlist("a"), ["1", "2", "3", "4"])
def test_non_default_encoding(self):
"""#13572 - QueryDict with a non-default encoding"""
q = QueryDict("cur=%A4", encoding="iso-8859-15")
self.assertEqual(q.encoding, "iso-8859-15")
self.assertEqual(list(q.items()), [("cur", "€")])
self.assertEqual(q.urlencode(), "cur=%A4")
q = q.copy()
self.assertEqual(q.encoding, "iso-8859-15")
self.assertEqual(list(q.items()), [("cur", "€")])
self.assertEqual(q.urlencode(), "cur=%A4")
self.assertEqual(copy.copy(q).encoding, "iso-8859-15")
self.assertEqual(copy.deepcopy(q).encoding, "iso-8859-15")
def test_querydict_fromkeys(self):
self.assertEqual(
QueryDict.fromkeys(["key1", "key2", "key3"]), QueryDict("key1&key2&key3")
)
def test_fromkeys_with_nonempty_value(self):
self.assertEqual(
QueryDict.fromkeys(["key1", "key2", "key3"], value="val"),
QueryDict("key1=val&key2=val&key3=val"),
)
def test_fromkeys_is_immutable_by_default(self):
# Match behavior of __init__() which is also immutable by default.
q = QueryDict.fromkeys(["key1", "key2", "key3"])
with self.assertRaisesMessage(
AttributeError, "This QueryDict instance is immutable"
):
q["key4"] = "nope"
def test_fromkeys_mutable_override(self):
q = QueryDict.fromkeys(["key1", "key2", "key3"], mutable=True)
q["key4"] = "yep"
self.assertEqual(q, QueryDict("key1&key2&key3&key4=yep"))
def test_duplicates_in_fromkeys_iterable(self):
self.assertEqual(QueryDict.fromkeys("xyzzy"), QueryDict("x&y&z&z&y"))
def test_fromkeys_with_nondefault_encoding(self):
key_utf16 = b"\xff\xfe\x8e\x02\xdd\x01\x9e\x02"
value_utf16 = b"\xff\xfe\xdd\x01n\x00l\x00P\x02\x8c\x02"
q = QueryDict.fromkeys([key_utf16], value=value_utf16, encoding="utf-16")
expected = QueryDict("", mutable=True)
expected["ʎǝʞ"] = "ǝnlɐʌ"
self.assertEqual(q, expected)
def test_fromkeys_empty_iterable(self):
self.assertEqual(QueryDict.fromkeys([]), QueryDict(""))
def test_fromkeys_noniterable(self):
with self.assertRaises(TypeError):
QueryDict.fromkeys(0)
class HttpResponseTests(SimpleTestCase):
def test_headers_type(self):
r = HttpResponse()
# ASCII strings or bytes values are converted to strings.
r.headers["key"] = "test"
self.assertEqual(r.headers["key"], "test")
r.headers["key"] = b"test"
self.assertEqual(r.headers["key"], "test")
self.assertIn(b"test", r.serialize_headers())
# Non-ASCII values are serialized to Latin-1.
r.headers["key"] = "café"
self.assertIn("café".encode("latin-1"), r.serialize_headers())
# Other Unicode values are MIME-encoded (there's no way to pass them as
# bytes).
r.headers["key"] = "†"
self.assertEqual(r.headers["key"], "=?utf-8?b?4oCg?=")
self.assertIn(b"=?utf-8?b?4oCg?=", r.serialize_headers())
# The response also converts string or bytes keys to strings, but requires
# them to contain ASCII
r = HttpResponse()
del r.headers["Content-Type"]
r.headers["foo"] = "bar"
headers = list(r.headers.items())
self.assertEqual(len(headers), 1)
self.assertEqual(headers[0], ("foo", "bar"))
r = HttpResponse()
del r.headers["Content-Type"]
r.headers[b"foo"] = "bar"
headers = list(r.headers.items())
self.assertEqual(len(headers), 1)
self.assertEqual(headers[0], ("foo", "bar"))
self.assertIsInstance(headers[0][0], str)
r = HttpResponse()
with self.assertRaises(UnicodeError):
r.headers.__setitem__("føø", "bar")
with self.assertRaises(UnicodeError):
r.headers.__setitem__("føø".encode(), "bar")
def test_long_line(self):
# Bug #20889: long lines trigger newlines to be added to headers
# (which is not allowed due to bug #10188)
h = HttpResponse()
f = b"zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz a\xcc\x88"
f = f.decode("utf-8")
h.headers["Content-Disposition"] = 'attachment; filename="%s"' % f
# This one is triggering https://bugs.python.org/issue20747, that is Python
# will itself insert a newline in the header
h.headers["Content-Disposition"] = (
'attachment; filename="EdelRot_Blu\u0308te (3)-0.JPG"'
)
def test_newlines_in_headers(self):
# Bug #10188: Do not allow newlines in headers (CR or LF)
r = HttpResponse()
with self.assertRaises(BadHeaderError):
r.headers.__setitem__("test\rstr", "test")
with self.assertRaises(BadHeaderError):
r.headers.__setitem__("test\nstr", "test")
def test_encoded_with_newlines_in_headers(self):
"""
Keys & values which throw a UnicodeError when encoding/decoding should
still be checked for newlines and re-raised as a BadHeaderError.
These specifically would still throw BadHeaderError after decoding
successfully, because the newlines are sandwiched in the middle of the
string and email.Header leaves those as they are.
"""
r = HttpResponse()
pairs = (
("†\nother", "test"),
("test", "†\nother"),
(b"\xe2\x80\xa0\nother", "test"),
("test", b"\xe2\x80\xa0\nother"),
)
msg = "Header values can't contain newlines"
for key, value in pairs:
with self.subTest(key=key, value=value):
with self.assertRaisesMessage(BadHeaderError, msg):
r[key] = value
def test_dict_behavior(self):
"""
Test for bug #14020: Make HttpResponse.get work like dict.get
"""
r = HttpResponse()
self.assertIsNone(r.get("test"))
def test_non_string_content(self):
# Bug 16494: HttpResponse should behave consistently with non-strings
r = HttpResponse(12345)
self.assertEqual(r.content, b"12345")
# test content via property
r = HttpResponse()
r.content = 12345
self.assertEqual(r.content, b"12345")
def test_memoryview_content(self):
r = HttpResponse(memoryview(b"memoryview"))
self.assertEqual(r.content, b"memoryview")
def test_iter_content(self):
r = HttpResponse(["abc", "def", "ghi"])
self.assertEqual(r.content, b"abcdefghi")
# test iter content via property
r = HttpResponse()
r.content = ["idan", "alex", "jacob"]
self.assertEqual(r.content, b"idanalexjacob")
r = HttpResponse()
r.content = [1, 2, 3]
self.assertEqual(r.content, b"123")
# test odd inputs
r = HttpResponse()
r.content = ["1", "2", 3, "\u079e"]
# '\xde\x9e' == unichr(1950).encode()
self.assertEqual(r.content, b"123\xde\x9e")
# .content can safely be accessed multiple times.
r = HttpResponse(iter(["hello", "world"]))
self.assertEqual(r.content, r.content)
self.assertEqual(r.content, b"helloworld")
# __iter__ can safely be called multiple times (#20187).
self.assertEqual(b"".join(r), b"helloworld")
self.assertEqual(b"".join(r), b"helloworld")
# Accessing .content still works.
self.assertEqual(r.content, b"helloworld")
# Accessing .content also works if the response was iterated first.
r = HttpResponse(iter(["hello", "world"]))
self.assertEqual(b"".join(r), b"helloworld")
self.assertEqual(r.content, b"helloworld")
# Additional content can be written to the response.
r = HttpResponse(iter(["hello", "world"]))
self.assertEqual(r.content, b"helloworld")
r.write("!")
self.assertEqual(r.content, b"helloworld!")
def test_iterator_isnt_rewound(self):
# Regression test for #13222
r = HttpResponse("abc")
i = iter(r)
self.assertEqual(list(i), [b"abc"])
self.assertEqual(list(i), [])
def test_lazy_content(self):
r = HttpResponse(lazystr("helloworld"))
self.assertEqual(r.content, b"helloworld")
def test_file_interface(self):
r = HttpResponse()
r.write(b"hello")
self.assertEqual(r.tell(), 5)
r.write("привет")
self.assertEqual(r.tell(), 17)
r = HttpResponse(["abc"])
r.write("def")
self.assertEqual(r.tell(), 6)
self.assertEqual(r.content, b"abcdef")
# with Content-Encoding header
r = HttpResponse()
r.headers["Content-Encoding"] = "winning"
r.write(b"abc")
r.write(b"def")
self.assertEqual(r.content, b"abcdef")
def test_stream_interface(self):
r = HttpResponse("asdf")
self.assertEqual(r.getvalue(), b"asdf")
r = HttpResponse()
self.assertIs(r.writable(), True)
r.writelines(["foo\n", "bar\n", "baz\n"])
self.assertEqual(r.content, b"foo\nbar\nbaz\n")
def test_unsafe_redirect(self):
bad_urls = [
'data:text/html,',
"mailto:test@example.com",
"file:///etc/passwd",
]
for url in bad_urls:
with self.assertRaises(DisallowedRedirect):
HttpResponseRedirect(url)
with self.assertRaises(DisallowedRedirect):
HttpResponsePermanentRedirect(url)
def test_header_deletion(self):
r = HttpResponse("hello")
r.headers["X-Foo"] = "foo"
del r.headers["X-Foo"]
self.assertNotIn("X-Foo", r.headers)
# del doesn't raise a KeyError on nonexistent headers.
del r.headers["X-Foo"]
def test_instantiate_with_headers(self):
r = HttpResponse("hello", headers={"X-Foo": "foo"})
self.assertEqual(r.headers["X-Foo"], "foo")
self.assertEqual(r.headers["x-foo"], "foo")
def test_content_type(self):
r = HttpResponse("hello", content_type="application/json")
self.assertEqual(r.headers["Content-Type"], "application/json")
def test_content_type_headers(self):
r = HttpResponse("hello", headers={"Content-Type": "application/json"})
self.assertEqual(r.headers["Content-Type"], "application/json")
def test_content_type_mutually_exclusive(self):
msg = (
"'headers' must not contain 'Content-Type' when the "
"'content_type' parameter is provided."
)
with self.assertRaisesMessage(ValueError, msg):
HttpResponse(
"hello",
content_type="application/json",
headers={"Content-Type": "text/csv"},
)
def test_text_updates_when_content_updates(self):
response = HttpResponse("Hello, world!")
self.assertEqual(response.text, "Hello, world!")
response.content = "Updated content"
self.assertEqual(response.text, "Updated content")
def test_text_charset(self):
for content_type, content in [
(None, b"Ol\xc3\xa1 Mundo"),
("text/plain; charset=utf-8", b"Ol\xc3\xa1 Mundo"),
("text/plain; charset=iso-8859-1", b"Ol\xe1 Mundo"),
]:
with self.subTest(content_type=content_type):
response = HttpResponse(content, content_type=content_type)
self.assertEqual(response.text, "Olá Mundo")
class HttpResponseSubclassesTests(SimpleTestCase):
def test_redirect(self):
response = HttpResponseRedirect("/redirected/")
self.assertEqual(response.status_code, 302)
# Standard HttpResponse init args can be used
response = HttpResponseRedirect(
"/redirected/",
content="The resource has temporarily moved",
)
self.assertContains(
response, "The resource has temporarily moved", status_code=302
)
self.assertEqual(response.url, response.headers["Location"])
def test_redirect_lazy(self):
"""Make sure HttpResponseRedirect works with lazy strings."""
r = HttpResponseRedirect(lazystr("/redirected/"))
self.assertEqual(r.url, "/redirected/")
def test_redirect_modifiers(self):
cases = [
(HttpResponseRedirect, "Moved temporarily", False, 302),
(HttpResponseRedirect, "Moved temporarily preserve method", True, 307),
(HttpResponsePermanentRedirect, "Moved permanently", False, 301),
(
HttpResponsePermanentRedirect,
"Moved permanently preserve method",
True,
308,
),
]
for response_class, content, preserve_request, expected_status_code in cases:
with self.subTest(status_code=expected_status_code):
response = response_class(
"/redirected/", content=content, preserve_request=preserve_request
)
self.assertEqual(response.status_code, expected_status_code)
self.assertEqual(response.content.decode(), content)
self.assertEqual(response.url, response.headers["Location"])
def test_redirect_repr(self):
response = HttpResponseRedirect("/redirected/")
expected = (
''
)
self.assertEqual(repr(response), expected)
def test_invalid_redirect_repr(self):
"""
If HttpResponseRedirect raises DisallowedRedirect, its __repr__()
should work (in the debug view, for example).
"""
response = HttpResponseRedirect.__new__(HttpResponseRedirect)
with self.assertRaisesMessage(
DisallowedRedirect, "Unsafe redirect to URL with protocol 'ssh'"
):
HttpResponseRedirect.__init__(response, "ssh://foo")
expected = (
''
)
self.assertEqual(repr(response), expected)
def test_not_modified(self):
response = HttpResponseNotModified()
self.assertEqual(response.status_code, 304)
# 304 responses should not have content/content-type
with self.assertRaises(AttributeError):
response.content = "Hello dear"
self.assertNotIn("content-type", response)
def test_not_modified_repr(self):
response = HttpResponseNotModified()
self.assertEqual(repr(response), "")
def test_not_allowed(self):
response = HttpResponseNotAllowed(["GET"])
self.assertEqual(response.status_code, 405)
# Standard HttpResponse init args can be used
response = HttpResponseNotAllowed(
["GET"], content="Only the GET method is allowed"
)
self.assertContains(response, "Only the GET method is allowed", status_code=405)
def test_not_allowed_repr(self):
response = HttpResponseNotAllowed(["GET", "OPTIONS"], content_type="text/plain")
expected = (
''
)
self.assertEqual(repr(response), expected)
def test_not_allowed_repr_no_content_type(self):
response = HttpResponseNotAllowed(("GET", "POST"))
del response.headers["Content-Type"]
self.assertEqual(
repr(response), ""
)
class JsonResponseTests(SimpleTestCase):
def test_json_response_non_ascii(self):
data = {"key": "łóżko"}
response = JsonResponse(data)
self.assertEqual(json.loads(response.text), data)
def test_json_response_raises_type_error_with_default_setting(self):
with self.assertRaisesMessage(
TypeError,
"In order to allow non-dict objects to be serialized set the "
"safe parameter to False",
):
JsonResponse([1, 2, 3])
def test_json_response_text(self):
response = JsonResponse("foobar", safe=False)
self.assertEqual(json.loads(response.text), "foobar")
def test_json_response_list(self):
response = JsonResponse(["foo", "bar"], safe=False)
self.assertEqual(json.loads(response.text), ["foo", "bar"])
def test_json_response_uuid(self):
u = uuid.uuid4()
response = JsonResponse(u, safe=False)
self.assertEqual(json.loads(response.text), str(u))
def test_json_response_custom_encoder(self):
class CustomDjangoJSONEncoder(DjangoJSONEncoder):
def encode(self, o):
return json.dumps({"foo": "bar"})
response = JsonResponse({}, encoder=CustomDjangoJSONEncoder)
self.assertEqual(json.loads(response.text), {"foo": "bar"})
def test_json_response_passing_arguments_to_json_dumps(self):
response = JsonResponse({"foo": "bar"}, json_dumps_params={"indent": 2})
self.assertEqual(response.text, '{\n "foo": "bar"\n}')
class StreamingHttpResponseTests(SimpleTestCase):
def test_streaming_response(self):
r = StreamingHttpResponse(iter(["hello", "world"]))
# iterating over the response itself yields bytestring chunks.
chunks = list(r)
self.assertEqual(chunks, [b"hello", b"world"])
for chunk in chunks:
self.assertIsInstance(chunk, bytes)
# and the response can only be iterated once.
self.assertEqual(list(r), [])
# even when a sequence that can be iterated many times, like a list,
# is given as content.
r = StreamingHttpResponse(["abc", "def"])
self.assertEqual(list(r), [b"abc", b"def"])
self.assertEqual(list(r), [])
# iterating over strings still yields bytestring chunks.
r.streaming_content = iter(["hello", "café"])
chunks = list(r)
# '\xc3\xa9' == unichr(233).encode()
self.assertEqual(chunks, [b"hello", b"caf\xc3\xa9"])
for chunk in chunks:
self.assertIsInstance(chunk, bytes)
# streaming responses don't have a `content` attribute.
self.assertFalse(hasattr(r, "content"))
# and you can't accidentally assign to a `content` attribute.
with self.assertRaises(AttributeError):
r.content = "xyz"
# but they do have a `streaming_content` attribute.
self.assertTrue(hasattr(r, "streaming_content"))
# that exists so we can check if a response is streaming, and wrap or
# replace the content iterator.
r.streaming_content = iter(["abc", "def"])
r.streaming_content = (chunk.upper() for chunk in r.streaming_content)
self.assertEqual(list(r), [b"ABC", b"DEF"])
# coercing a streaming response to bytes doesn't return a complete HTTP
# message like a regular response does. it only gives us the headers.
r = StreamingHttpResponse(iter(["hello", "world"]))
self.assertEqual(bytes(r), b"Content-Type: text/html; charset=utf-8")
# and this won't consume its content.
self.assertEqual(list(r), [b"hello", b"world"])
# additional content cannot be written to the response.
r = StreamingHttpResponse(iter(["hello", "world"]))
with self.assertRaises(Exception):
r.write("!")
# and we can't tell the current position.
with self.assertRaises(Exception):
r.tell()
r = StreamingHttpResponse(iter(["hello", "world"]))
self.assertEqual(r.getvalue(), b"helloworld")
def test_repr(self):
r = StreamingHttpResponse(iter(["hello", "café"]))
self.assertEqual(
repr(r),
'',
)
async def test_async_streaming_response(self):
async def async_iter():
yield b"hello"
yield b"world"
r = StreamingHttpResponse(async_iter())
chunks = []
async for chunk in r:
chunks.append(chunk)
self.assertEqual(chunks, [b"hello", b"world"])
def test_async_streaming_response_warning(self):
async def async_iter():
yield b"hello"
yield b"world"
r = StreamingHttpResponse(async_iter())
msg = (
"StreamingHttpResponse must consume asynchronous iterators in order to "
"serve them synchronously. Use a synchronous iterator instead."
)
with self.assertWarnsMessage(Warning, msg):
self.assertEqual(list(r), [b"hello", b"world"])
async def test_sync_streaming_response_warning(self):
r = StreamingHttpResponse(iter(["hello", "world"]))
msg = (
"StreamingHttpResponse must consume synchronous iterators in order to "
"serve them asynchronously. Use an asynchronous iterator instead."
)
with self.assertWarnsMessage(Warning, msg):
self.assertEqual(b"hello", await anext(aiter(r)))
def test_text_attribute_error(self):
r = StreamingHttpResponse(iter(["hello", "world"]))
msg = "This %s instance has no `text` attribute." % r.__class__.__name__
with self.assertRaisesMessage(AttributeError, msg):
r.text
class FileCloseTests(SimpleTestCase):
def setUp(self):
# Disable the request_finished signal during this test
# to avoid interfering with the database connection.
request_finished.disconnect(close_old_connections)
self.addCleanup(request_finished.connect, close_old_connections)
def test_response(self):
filename = os.path.join(os.path.dirname(__file__), "abc.txt")
# file isn't closed until we close the response.
file1 = open(filename)
r = HttpResponse(file1)
self.assertTrue(file1.closed)
r.close()
# when multiple file are assigned as content, make sure they are all
# closed with the response.
file1 = open(filename)
file2 = open(filename)
r = HttpResponse(file1)
r.content = file2
self.assertTrue(file1.closed)
self.assertTrue(file2.closed)
def test_streaming_response(self):
filename = os.path.join(os.path.dirname(__file__), "abc.txt")
# file isn't closed until we close the response.
file1 = open(filename)
r = StreamingHttpResponse(file1)
self.assertFalse(file1.closed)
r.close()
self.assertTrue(file1.closed)
# when multiple file are assigned as content, make sure they are all
# closed with the response.
file1 = open(filename)
file2 = open(filename)
r = StreamingHttpResponse(file1)
r.streaming_content = file2
self.assertFalse(file1.closed)
self.assertFalse(file2.closed)
r.close()
self.assertTrue(file1.closed)
self.assertTrue(file2.closed)
class CookieTests(unittest.TestCase):
def test_encode(self):
"""Semicolons and commas are encoded."""
c = SimpleCookie()
c["test"] = "An,awkward;value"
self.assertNotIn(";", c.output().rstrip(";")) # IE compat
self.assertNotIn(",", c.output().rstrip(";")) # Safari compat
def test_decode(self):
"""Semicolons and commas are decoded."""
c = SimpleCookie()
c["test"] = "An,awkward;value"
c2 = SimpleCookie()
c2.load(c.output()[12:])
self.assertEqual(c["test"].value, c2["test"].value)
c3 = parse_cookie(c.output()[12:])
self.assertEqual(c["test"].value, c3["test"])
def test_nonstandard_keys(self):
"""
A single non-standard cookie name doesn't affect all cookies (#13007).
"""
self.assertIn("good_cookie", parse_cookie("good_cookie=yes;bad:cookie=yes"))
def test_repeated_nonstandard_keys(self):
"""
A repeated non-standard name doesn't affect all cookies (#15852).
"""
self.assertIn("good_cookie", parse_cookie("a:=b; a:=c; good_cookie=yes"))
def test_python_cookies(self):
"""
Test cases copied from Python's Lib/test/test_http_cookies.py
"""
self.assertEqual(
parse_cookie("chips=ahoy; vienna=finger"),
{"chips": "ahoy", "vienna": "finger"},
)
# Here parse_cookie() differs from Python's cookie parsing in that it
# treats all semicolons as delimiters, even within quotes.
self.assertEqual(
parse_cookie('keebler="E=mc2; L=\\"Loves\\"; fudge=\\012;"'),
{"keebler": '"E=mc2', "L": '\\"Loves\\"', "fudge": "\\012", "": '"'},
)
# Illegal cookies that have an '=' char in an unquoted value.
self.assertEqual(parse_cookie("keebler=E=mc2"), {"keebler": "E=mc2"})
# Cookies with ':' character in their name.
self.assertEqual(
parse_cookie("key:term=value:term"), {"key:term": "value:term"}
)
# Cookies with '[' and ']'.
self.assertEqual(
parse_cookie("a=b; c=[; d=r; f=h"), {"a": "b", "c": "[", "d": "r", "f": "h"}
)
def test_cookie_edgecases(self):
# Cookies that RFC 6265 allows.
self.assertEqual(
parse_cookie("a=b; Domain=example.com"), {"a": "b", "Domain": "example.com"}
)
# parse_cookie() has historically kept only the last cookie with the
# same name.
self.assertEqual(parse_cookie("a=b; h=i; a=c"), {"a": "c", "h": "i"})
def test_invalid_cookies(self):
"""
Cookie strings that go against RFC 6265 but browsers will send if set
via document.cookie.
"""
# Chunks without an equals sign appear as unnamed values per
# https://bugzilla.mozilla.org/show_bug.cgi?id=169091
self.assertIn(
"django_language", parse_cookie("abc=def; unnamed; django_language=en")
)
# Even a double quote may be an unnamed value.
self.assertEqual(parse_cookie('a=b; "; c=d'), {"a": "b", "": '"', "c": "d"})
# Spaces in names and values, and an equals sign in values.
self.assertEqual(
parse_cookie("a b c=d e = f; gh=i"), {"a b c": "d e = f", "gh": "i"}
)
# More characters the spec forbids.
self.assertEqual(
parse_cookie('a b,c<>@:/[]?{}=d " =e,f g'),
{"a b,c<>@:/[]?{}": 'd " =e,f g'},
)
# Unicode characters. The spec only allows ASCII.
self.assertEqual(
parse_cookie("saint=André Bessette"), {"saint": "André Bessette"}
)
# Browsers don't send extra whitespace or semicolons in Cookie headers,
# but parse_cookie() should parse whitespace the same way
# document.cookie parses whitespace.
self.assertEqual(
parse_cookie(" = b ; ; = ; c = ; "), {"": "b", "c": ""}
)
def test_samesite(self):
c = SimpleCookie("name=value; samesite=lax; httponly")
self.assertEqual(c["name"]["samesite"], "lax")
self.assertIn("SameSite=lax", c.output())
def test_httponly_after_load(self):
c = SimpleCookie()
c.load("name=val")
c["name"]["httponly"] = True
self.assertTrue(c["name"]["httponly"])
def test_load_dict(self):
c = SimpleCookie()
c.load({"name": "val"})
self.assertEqual(c["name"].value, "val")
def test_pickle(self):
rawdata = 'Customer="WILE_E_COYOTE"; Path=/acme; Version=1'
expected_output = "Set-Cookie: %s" % rawdata
C = SimpleCookie()
C.load(rawdata)
self.assertEqual(C.output(), expected_output)
for proto in range(pickle.HIGHEST_PROTOCOL + 1):
C1 = pickle.loads(pickle.dumps(C, protocol=proto))
self.assertEqual(C1.output(), expected_output)
class HttpResponseHeadersTestCase(SimpleTestCase):
"""Headers by treating HttpResponse like a dictionary."""
def test_headers(self):
response = HttpResponse()
response["X-Foo"] = "bar"
self.assertEqual(response["X-Foo"], "bar")
self.assertEqual(response.headers["X-Foo"], "bar")
self.assertIn("X-Foo", response)
self.assertIs(response.has_header("X-Foo"), True)
del response["X-Foo"]
self.assertNotIn("X-Foo", response)
self.assertNotIn("X-Foo", response.headers)
# del doesn't raise a KeyError on nonexistent headers.
del response["X-Foo"]
def test_headers_as_iterable_of_tuple_pairs(self):
response = HttpResponse(headers=(("X-Foo", "bar"),))
self.assertEqual(response["X-Foo"], "bar")
def test_headers_bytestring(self):
response = HttpResponse()
response["X-Foo"] = b"bar"
self.assertEqual(response["X-Foo"], "bar")
self.assertEqual(response.headers["X-Foo"], "bar")
def test_newlines_in_headers(self):
response = HttpResponse()
with self.assertRaises(BadHeaderError):
response["test\rstr"] = "test"
with self.assertRaises(BadHeaderError):
response["test\nstr"] = "test"