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104 lines
3.9 KiB
Python
104 lines
3.9 KiB
Python
from io import BytesIO
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from django.core.handlers.wsgi import WSGIRequest
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from django.core.servers.basehttp import WSGIRequestHandler
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from django.test import SimpleTestCase
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from django.test.client import RequestFactory
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class Stub:
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def __init__(self, **kwargs):
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self.__dict__.update(kwargs)
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def sendall(self, data):
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self.makefile('wb').write(data)
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class WSGIRequestHandlerTestCase(SimpleTestCase):
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request_factory = RequestFactory()
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def test_log_message(self):
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request = WSGIRequest(self.request_factory.get('/').environ)
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request.makefile = lambda *args, **kwargs: BytesIO()
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handler = WSGIRequestHandler(request, '192.168.0.2', None)
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level_status_codes = {
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'info': [200, 301, 304],
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'warning': [400, 403, 404],
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'error': [500, 503],
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}
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for level, status_codes in level_status_codes.items():
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for status_code in status_codes:
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# The correct level gets the message.
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with self.assertLogs('django.server', level.upper()) as cm:
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handler.log_message('GET %s %s', 'A', str(status_code))
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self.assertIn('GET A %d' % status_code, cm.output[0])
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# Incorrect levels don't have any messages.
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for wrong_level in level_status_codes:
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if wrong_level != level:
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with self.assertLogs('django.server', 'INFO') as cm:
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handler.log_message('GET %s %s', 'A', str(status_code))
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self.assertNotEqual(cm.records[0].levelname, wrong_level.upper())
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def test_https(self):
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request = WSGIRequest(self.request_factory.get('/').environ)
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request.makefile = lambda *args, **kwargs: BytesIO()
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handler = WSGIRequestHandler(request, '192.168.0.2', None)
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with self.assertLogs('django.server', 'ERROR') as cm:
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handler.log_message("GET %s %s", '\x16\x03', "4")
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self.assertIn(
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"You're accessing the development server over HTTPS, "
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"but it only supports HTTP.",
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cm.records[0].getMessage()
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)
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def test_strips_underscore_headers(self):
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"""WSGIRequestHandler ignores headers containing underscores.
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This follows the lead of nginx and Apache 2.4, and is to avoid
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ambiguity between dashes and underscores in mapping to WSGI environ,
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which can have security implications.
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"""
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def test_app(environ, start_response):
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"""A WSGI app that just reflects its HTTP environ."""
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start_response('200 OK', [])
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http_environ_items = sorted(
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'%s:%s' % (k, v) for k, v in environ.items()
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if k.startswith('HTTP_')
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)
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yield (','.join(http_environ_items)).encode()
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rfile = BytesIO()
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rfile.write(b"GET / HTTP/1.0\r\n")
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rfile.write(b"Some-Header: good\r\n")
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rfile.write(b"Some_Header: bad\r\n")
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rfile.write(b"Other_Header: bad\r\n")
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rfile.seek(0)
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# WSGIRequestHandler closes the output file; we need to make this a
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# no-op so we can still read its contents.
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class UnclosableBytesIO(BytesIO):
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def close(self):
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pass
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wfile = UnclosableBytesIO()
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def makefile(mode, *a, **kw):
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if mode == 'rb':
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return rfile
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elif mode == 'wb':
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return wfile
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request = Stub(makefile=makefile)
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server = Stub(base_environ={}, get_app=lambda: test_app)
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# Prevent logging from appearing in test output.
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with self.assertLogs('django.server', 'INFO'):
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# instantiating a handler runs the request as side effect
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WSGIRequestHandler(request, '192.168.0.2', server)
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wfile.seek(0)
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body = list(wfile.readlines())[-1]
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self.assertEqual(body, b'HTTP_SOME_HEADER:good')
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