django/tests/httpwrappers/tests.py

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# -*- encoding: utf-8 -*-
from __future__ import unicode_literals
import copy
import json
import os
import pickle
import unittest
from django.core.exceptions import SuspiciousOperation
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 (QueryDict, HttpResponse, HttpResponseRedirect,
HttpResponsePermanentRedirect, HttpResponseNotAllowed,
HttpResponseNotModified, StreamingHttpResponse,
SimpleCookie, BadHeaderError, JsonResponse,
parse_cookie)
from django.test import TestCase
from django.utils.encoding import smart_str, force_text
from django.utils.functional import lazy
from django.utils._os import upath
from django.utils import six
lazystr = lazy(force_text, six.text_type)
class QueryDictTests(unittest.TestCase):
def test_create_with_no_args(self):
self.assertEqual(QueryDict(), QueryDict(str('')))
def test_missing_key(self):
q = QueryDict()
self.assertRaises(KeyError, q.__getitem__, 'foo')
def test_immutability(self):
q = QueryDict()
self.assertRaises(AttributeError, q.__setitem__, 'something', 'bar')
self.assertRaises(AttributeError, q.setlist, 'foo', ['bar'])
self.assertRaises(AttributeError, q.appendlist, 'foo', ['bar'])
self.assertRaises(AttributeError, q.update, {'foo': 'bar'})
self.assertRaises(AttributeError, q.pop, 'foo')
self.assertRaises(AttributeError, q.popitem)
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'), [])
if six.PY2:
self.assertEqual(q.has_key('foo'), False)
self.assertEqual('foo' in q, False)
self.assertEqual(list(six.iteritems(q)), [])
self.assertEqual(list(six.iterlists(q)), [])
self.assertEqual(list(six.iterkeys(q)), [])
self.assertEqual(list(six.itervalues(q)), [])
self.assertEqual(len(q), 0)
self.assertEqual(q.urlencode(), '')
def test_single_key_value(self):
"""Test QueryDict with one key/value pair"""
q = QueryDict(str('foo=bar'))
self.assertEqual(q['foo'], 'bar')
self.assertRaises(KeyError, q.__getitem__, 'bar')
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'), [])
self.assertRaises(AttributeError, q.setlist, 'foo', ['bar'])
self.assertRaises(AttributeError, q.appendlist, 'foo', ['bar'])
if six.PY2:
self.assertTrue(q.has_key('foo'))
self.assertTrue('foo' in q)
if six.PY2:
self.assertFalse(q.has_key('bar'))
self.assertFalse('bar' in q)
self.assertEqual(list(six.iteritems(q)), [('foo', 'bar')])
self.assertEqual(list(six.iterlists(q)), [('foo', ['bar'])])
self.assertEqual(list(six.iterkeys(q)), ['foo'])
self.assertEqual(list(six.itervalues(q)), ['bar'])
self.assertEqual(len(q), 1)
self.assertRaises(AttributeError, q.update, {'foo': 'bar'})
self.assertRaises(AttributeError, q.pop, 'foo')
self.assertRaises(AttributeError, q.popitem)
self.assertRaises(AttributeError, q.clear)
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_mutable_copy(self):
"""A copy of a QueryDict is mutable."""
q = QueryDict().copy()
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.assertFalse('name' in 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')
if six.PY2:
self.assertTrue(q.has_key('foo'))
self.assertTrue('foo' in q)
self.assertListEqual(sorted(list(six.iteritems(q))),
[('foo', 'another'), ('name', 'john')])
self.assertListEqual(sorted(list(six.iterlists(q))),
[('foo', ['bar', 'baz', 'another']), ('name', ['john'])])
self.assertListEqual(sorted(list(six.iterkeys(q))),
['foo', 'name'])
self.assertListEqual(sorted(list(six.itervalues(q))),
['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(str('vote=yes&vote=no'))
self.assertEqual(q['vote'], 'no')
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'), [])
self.assertRaises(AttributeError, q.setlist, 'foo', ['bar', 'baz'])
self.assertRaises(AttributeError, q.setlist, 'foo', ['bar', 'baz'])
self.assertRaises(AttributeError, q.appendlist, 'foo', ['bar'])
if six.PY2:
self.assertEqual(q.has_key('vote'), True)
self.assertEqual('vote' in q, True)
if six.PY2:
self.assertEqual(q.has_key('foo'), False)
self.assertEqual('foo' in q, False)
self.assertEqual(list(six.iteritems(q)), [('vote', 'no')])
self.assertEqual(list(six.iterlists(q)), [('vote', ['yes', 'no'])])
self.assertEqual(list(six.iterkeys(q)), ['vote'])
self.assertEqual(list(six.itervalues(q)), ['no'])
self.assertEqual(len(q), 1)
self.assertRaises(AttributeError, q.update, {'foo': 'bar'})
self.assertRaises(AttributeError, q.pop, 'foo')
self.assertRaises(AttributeError, q.popitem)
self.assertRaises(AttributeError, q.clear)
self.assertRaises(AttributeError, q.setdefault, 'foo', 'bar')
self.assertRaises(AttributeError, q.__delitem__, 'vote')
if six.PY2:
def test_invalid_input_encoding(self):
"""
QueryDicts must be able to handle invalid input encoding (in this
case, bad UTF-8 encoding), falling back to ISO-8859-1 decoding.
This test doesn't apply under Python 3 because the URL is a string
and not a bytestring.
"""
q = QueryDict(str(b'foo=bar&foo=\xff'))
self.assertEqual(q['foo'], '\xff')
self.assertEqual(q.getlist('foo'), ['bar', '\xff'])
def test_pickle(self):
q = QueryDict()
q1 = pickle.loads(pickle.dumps(q, 2))
self.assertEqual(q == q1, True)
q = QueryDict(str('a=b&c=d'))
q1 = pickle.loads(pickle.dumps(q, 2))
self.assertEqual(q == q1, True)
q = QueryDict(str('a=b&c=d&a=1'))
q1 = pickle.loads(pickle.dumps(q, 2))
self.assertEqual(q == q1, True)
def test_update_from_querydict(self):
"""Regression test for #8278: QueryDict.update(QueryDict)"""
x = QueryDict(str("a=1&a=2"), mutable=True)
y = QueryDict(str("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(str('cur=%A4'), encoding='iso-8859-15')
self.assertEqual(q.encoding, 'iso-8859-15')
self.assertEqual(list(six.iteritems(q)), [('cur', '')])
self.assertEqual(q.urlencode(), 'cur=%A4')
q = q.copy()
self.assertEqual(q.encoding, 'iso-8859-15')
self.assertEqual(list(six.iteritems(q)), [('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')
class HttpResponseTests(unittest.TestCase):
def test_headers_type(self):
r = HttpResponse()
# The following tests explicitly test types in addition to values
# because in Python 2 u'foo' == b'foo'.
# ASCII unicode or bytes values are converted to native strings.
r['key'] = 'test'
self.assertEqual(r['key'], str('test'))
self.assertIsInstance(r['key'], str)
r['key'] = 'test'.encode('ascii')
self.assertEqual(r['key'], str('test'))
self.assertIsInstance(r['key'], str)
self.assertIn(b'test', r.serialize_headers())
# Latin-1 unicode or bytes values are also converted to native strings.
r['key'] = 'café'
self.assertEqual(r['key'], smart_str('café', 'latin-1'))
self.assertIsInstance(r['key'], str)
r['key'] = 'café'.encode('latin-1')
self.assertEqual(r['key'], smart_str('café', 'latin-1'))
self.assertIsInstance(r['key'], str)
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['key'] = ''
self.assertEqual(r['key'], str('=?utf-8?b?4oCg?='))
self.assertIsInstance(r['key'], str)
self.assertIn(b'=?utf-8?b?4oCg?=', r.serialize_headers())
# The response also converts unicode or bytes keys to strings, but requires
# them to contain ASCII
r = HttpResponse()
del r['Content-Type']
r['foo'] = 'bar'
l = list(r.items())
self.assertEqual(len(l), 1)
self.assertEqual(l[0], ('foo', 'bar'))
self.assertIsInstance(l[0][0], str)
r = HttpResponse()
del r['Content-Type']
r[b'foo'] = 'bar'
l = list(r.items())
self.assertEqual(len(l), 1)
self.assertEqual(l[0], ('foo', 'bar'))
self.assertIsInstance(l[0][0], str)
r = HttpResponse()
self.assertRaises(UnicodeError, r.__setitem__, 'føø', 'bar')
self.assertRaises(UnicodeError, r.__setitem__, 'føø'.encode('utf-8'), '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 = 'zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz a\xcc\x88'.encode('latin-1')
f = f.decode('utf-8')
h['Content-Disposition'] = 'attachment; filename="%s"' % f
def test_newlines_in_headers(self):
# Bug #10188: Do not allow newlines in headers (CR or LF)
r = HttpResponse()
self.assertRaises(BadHeaderError, r.__setitem__, 'test\rstr', 'test')
self.assertRaises(BadHeaderError, r.__setitem__, 'test\nstr', 'test')
def test_dict_behavior(self):
"""
Test for bug #14020: Make HttpResponse.get work like dict.get
"""
r = HttpResponse()
self.assertEqual(r.get('test'), None)
def test_non_string_content(self):
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# Bug 16494: HttpResponse should behave consistently with non-strings
r = HttpResponse(12345)
self.assertEqual(r.content, b'12345')
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# test content via property
r = HttpResponse()
r.content = 12345
self.assertEqual(r.content, b'12345')
def test_iter_content(self):
r = HttpResponse(['abc', 'def', 'ghi'])
self.assertEqual(r.content, b'abcdefghi')
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# 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')
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# test odd inputs
r = HttpResponse()
r.content = ['1', '2', 3, '\u079e']
#'\xde\x9e' == unichr(1950).encode('utf-8')
self.assertEqual(r.content, b'123\xde\x9e')
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# with Content-Encoding header
r = HttpResponse()
r['Content-Encoding'] = 'winning'
r.content = [b'abc', b'def']
self.assertEqual(r.content, b'abcdef')
self.assertRaises(TypeError if six.PY3 else UnicodeEncodeError,
setattr, r, 'content', ['\u079e'])
# .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['Content-Encoding'] = 'winning'
r.write(b'abc')
r.write(b'def')
self.assertEqual(r.content, b'abcdef')
def test_unsafe_redirect(self):
bad_urls = [
'data:text/html,<script>window.alert("xss")</script>',
'mailto:test@example.com',
'file:///etc/passwd',
]
for url in bad_urls:
self.assertRaises(SuspiciousOperation,
HttpResponseRedirect, url)
self.assertRaises(SuspiciousOperation,
HttpResponsePermanentRedirect, url)
class HttpResponseSubclassesTests(TestCase):
def test_redirect(self):
response = HttpResponseRedirect('/redirected/')
self.assertEqual(response.status_code, 302)
# Test that standard HttpResponse init args can be used
response = HttpResponseRedirect('/redirected/',
content='The resource has temporarily moved',
content_type='text/html')
self.assertContains(response, 'The resource has temporarily moved', status_code=302)
# Test that url attribute is right
self.assertEqual(response.url, response['Location'])
def test_redirect_lazy(self):
"""Make sure HttpResponseRedirect works with lazy strings."""
r = HttpResponseRedirect(lazystr('/redirected/'))
self.assertEqual(r.url, '/redirected/')
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_allowed(self):
response = HttpResponseNotAllowed(['GET'])
self.assertEqual(response.status_code, 405)
# Test that standard HttpResponse init args can be used
response = HttpResponseNotAllowed(['GET'],
content='Only the GET method is allowed',
content_type='text/html')
self.assertContains(response, 'Only the GET method is allowed', status_code=405)
class JsonResponseTests(TestCase):
def test_json_response_non_ascii(self):
data = {'key': 'łóżko'}
response = JsonResponse(data)
self.assertEqual(json.loads(response.content.decode()), 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.content.decode()), 'foobar')
def test_json_response_list(self):
response = JsonResponse(['foo', 'bar'], safe=False)
self.assertEqual(json.loads(response.content.decode()), ['foo', 'bar'])
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.content.decode()), {'foo': 'bar'})
class StreamingHttpResponseTests(TestCase):
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, six.binary_type)
# 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), [])
# 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(
six.binary_type(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()
class FileCloseTests(TestCase):
def setUp(self):
# Disable the request_finished signal during this test
# to avoid interfering with the database connection.
request_finished.disconnect(close_old_connections)
def tearDown(self):
request_finished.connect(close_old_connections)
def test_response(self):
filename = os.path.join(os.path.dirname(upath(__file__)), 'abc.txt')
# file isn't closed until we close the response.
file1 = open(filename)
r = HttpResponse(file1)
self.assertFalse(file1.closed)
r.close()
self.assertTrue(file1.closed)
# don't automatically close file when we finish iterating the response.
file1 = open(filename)
r = HttpResponse(file1)
self.assertFalse(file1.closed)
list(r)
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 = HttpResponse(file1)
r.content = file2
self.assertFalse(file1.closed)
self.assertFalse(file2.closed)
r.close()
self.assertTrue(file1.closed)
self.assertTrue(file2.closed)
def test_streaming_response(self):
filename = os.path.join(os.path.dirname(upath(__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):
"""
Test that we don't output tricky characters in encoded value
"""
c = SimpleCookie()
c['test'] = "An,awkward;value"
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self.assertTrue(";" not in c.output().rstrip(';')) # IE compat
self.assertTrue("," not in c.output().rstrip(';')) # Safari compat
def test_decode(self):
"""
Test that we can still preserve semi-colons and commas
"""
c = SimpleCookie()
c['test'] = "An,awkward;value"
c2 = SimpleCookie()
c2.load(c.output())
self.assertEqual(c['test'].value, c2['test'].value)
def test_decode_2(self):
"""
Test that we haven't broken normal encoding
"""
c = SimpleCookie()
c['test'] = b"\xf0"
c2 = SimpleCookie()
c2.load(c.output())
self.assertEqual(c['test'].value, c2['test'].value)
def test_nonstandard_keys(self):
"""
Test that a single non-standard cookie name doesn't affect all cookies. Ticket #13007.
"""
self.assertTrue('good_cookie' in parse_cookie('good_cookie=yes;bad:cookie=yes').keys())
def test_repeated_nonstandard_keys(self):
"""
Test that a repeated non-standard name doesn't affect all cookies. Ticket #15852
"""
self.assertTrue('good_cookie' in parse_cookie('a:=b; a:=c; good_cookie=yes').keys())
def test_httponly_after_load(self):
"""
Test that we can use httponly attribute on cookies that we load
"""
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')
@unittest.skipUnless(six.PY2, "PY3 throws an exception on invalid cookie keys.")
def test_bad_cookie(self):
"""
Regression test for #18403
"""
r = HttpResponse()
r.set_cookie("a:.b/", 1)
self.assertEqual(len(r.cookies.bad_cookies), 1)