1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
|
import logging
from io import BytesIO
from django.core.handlers.wsgi import WSGIRequest
from django.core.servers.basehttp import WSGIRequestHandler
from django.test import SimpleTestCase
from django.test.client import RequestFactory
from django.test.utils import patch_logger
class Stub:
def __init__(self, **kwargs):
self.__dict__.update(kwargs)
def sendall(self, data):
self.makefile('wb').write(data)
class WSGIRequestHandlerTestCase(SimpleTestCase):
def test_log_message(self):
# Silence the django.server logger by replacing its StreamHandler with
# NullHandler.
logger = logging.getLogger('django.server')
original_handlers = logger.handlers
logger.handlers = [logging.NullHandler()]
try:
request = WSGIRequest(RequestFactory().get('/').environ)
request.makefile = lambda *args, **kwargs: BytesIO()
handler = WSGIRequestHandler(request, '192.168.0.2', None)
level_status_codes = {
'info': [200, 301, 304],
'warning': [400, 403, 404],
'error': [500, 503],
}
def _log_level_code(level, status_code):
with patch_logger('django.server', level) as messages:
handler.log_message('GET %s %s', 'A', str(status_code))
return messages
for level, status_codes in level_status_codes.items():
for status_code in status_codes:
# The correct level gets the message.
messages = _log_level_code(level, status_code)
self.assertIn('GET A %d' % status_code, messages[0])
# Incorrect levels shouldn't have any messages.
for wrong_level in level_status_codes.keys():
if wrong_level != level:
messages = _log_level_code(wrong_level, status_code)
self.assertEqual(len(messages), 0)
finally:
logger.handlers = original_handlers
def test_https(self):
request = WSGIRequest(RequestFactory().get('/').environ)
request.makefile = lambda *args, **kwargs: BytesIO()
handler = WSGIRequestHandler(request, '192.168.0.2', None)
with patch_logger('django.server', 'error') as messages:
handler.log_message("GET %s %s", '\x16\x03', "4")
self.assertIn(
"You're accessing the development server over HTTPS, "
"but it only supports HTTP.",
messages[0]
)
def test_strips_underscore_headers(self):
"""WSGIRequestHandler ignores headers containing underscores.
This follows the lead of nginx and Apache 2.4, and is to avoid
ambiguity between dashes and underscores in mapping to WSGI environ,
which can have security implications.
"""
def test_app(environ, start_response):
"""A WSGI app that just reflects its HTTP environ."""
start_response('200 OK', [])
http_environ_items = sorted(
'%s:%s' % (k, v) for k, v in environ.items()
if k.startswith('HTTP_')
)
yield (','.join(http_environ_items)).encode()
rfile = BytesIO()
rfile.write(b"GET / HTTP/1.0\r\n")
rfile.write(b"Some-Header: good\r\n")
rfile.write(b"Some_Header: bad\r\n")
rfile.write(b"Other_Header: bad\r\n")
rfile.seek(0)
# WSGIRequestHandler closes the output file; we need to make this a
# no-op so we can still read its contents.
class UnclosableBytesIO(BytesIO):
def close(self):
pass
wfile = UnclosableBytesIO()
def makefile(mode, *a, **kw):
if mode == 'rb':
return rfile
elif mode == 'wb':
return wfile
request = Stub(makefile=makefile)
server = Stub(base_environ={}, get_app=lambda: test_app)
# We don't need to check stderr, but we don't want it in test output
with patch_logger('django.server', 'info'):
# instantiating a handler runs the request as side effect
WSGIRequestHandler(request, '192.168.0.2', server)
wfile.seek(0)
body = list(wfile.readlines())[-1]
self.assertEqual(body, b'HTTP_SOME_HEADER:good')
|
