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
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
|
import unittest
from io import BytesIO, BufferedReader
from urllib3.response import HTTPResponse
from urllib3.exceptions import DecodeError
from base64 import b64decode
# A known random (i.e, not-too-compressible) payload generated with:
# "".join(random.choice(string.printable) for i in xrange(512))
# .encode("zlib").encode("base64")
# Randomness in tests == bad, and fixing a seed may not be sufficient.
ZLIB_PAYLOAD = b64decode(b"""\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""")
class TestLegacyResponse(unittest.TestCase):
def test_getheaders(self):
headers = {'host': 'example.com'}
r = HTTPResponse(headers=headers)
self.assertEqual(r.getheaders(), headers)
def test_getheader(self):
headers = {'host': 'example.com'}
r = HTTPResponse(headers=headers)
self.assertEqual(r.getheader('host'), 'example.com')
class TestResponse(unittest.TestCase):
def test_cache_content(self):
r = HTTPResponse('foo')
self.assertEqual(r.data, 'foo')
self.assertEqual(r._body, 'foo')
def test_default(self):
r = HTTPResponse()
self.assertEqual(r.data, None)
def test_none(self):
r = HTTPResponse(None)
self.assertEqual(r.data, None)
def test_preload(self):
fp = BytesIO(b'foo')
r = HTTPResponse(fp, preload_content=True)
self.assertEqual(fp.tell(), len(b'foo'))
self.assertEqual(r.data, b'foo')
def test_no_preload(self):
fp = BytesIO(b'foo')
r = HTTPResponse(fp, preload_content=False)
self.assertEqual(fp.tell(), 0)
self.assertEqual(r.data, b'foo')
self.assertEqual(fp.tell(), len(b'foo'))
def test_decode_bad_data(self):
fp = BytesIO(b'\x00' * 10)
self.assertRaises(DecodeError, HTTPResponse, fp, headers={
'content-encoding': 'deflate'
})
def test_decode_deflate(self):
import zlib
data = zlib.compress(b'foo')
fp = BytesIO(data)
r = HTTPResponse(fp, headers={'content-encoding': 'deflate'})
self.assertEqual(r.data, b'foo')
def test_decode_deflate_case_insensitve(self):
import zlib
data = zlib.compress(b'foo')
fp = BytesIO(data)
r = HTTPResponse(fp, headers={'content-encoding': 'DeFlAtE'})
self.assertEqual(r.data, b'foo')
def test_chunked_decoding_deflate(self):
import zlib
data = zlib.compress(b'foo')
fp = BytesIO(data)
r = HTTPResponse(fp, headers={'content-encoding': 'deflate'},
preload_content=False)
self.assertEqual(r.read(3), b'')
self.assertEqual(r.read(1), b'f')
self.assertEqual(r.read(2), b'oo')
def test_chunked_decoding_deflate2(self):
import zlib
compress = zlib.compressobj(6, zlib.DEFLATED, -zlib.MAX_WBITS)
data = compress.compress(b'foo')
data += compress.flush()
fp = BytesIO(data)
r = HTTPResponse(fp, headers={'content-encoding': 'deflate'},
preload_content=False)
self.assertEqual(r.read(1), b'')
self.assertEqual(r.read(1), b'f')
self.assertEqual(r.read(2), b'oo')
def test_chunked_decoding_gzip(self):
import zlib
compress = zlib.compressobj(6, zlib.DEFLATED, 16 + zlib.MAX_WBITS)
data = compress.compress(b'foo')
data += compress.flush()
fp = BytesIO(data)
r = HTTPResponse(fp, headers={'content-encoding': 'gzip'},
preload_content=False)
self.assertEqual(r.read(11), b'')
self.assertEqual(r.read(1), b'f')
self.assertEqual(r.read(2), b'oo')
def test_body_blob(self):
resp = HTTPResponse(b'foo')
self.assertEqual(resp.data, b'foo')
self.assertTrue(resp.closed)
def test_io(self):
import socket
try:
from http.client import HTTPResponse as OldHTTPResponse
except:
from httplib import HTTPResponse as OldHTTPResponse
fp = BytesIO(b'foo')
resp = HTTPResponse(fp, preload_content=False)
self.assertEqual(resp.closed, False)
self.assertEqual(resp.readable(), True)
self.assertEqual(resp.writable(), False)
self.assertRaises(IOError, resp.fileno)
resp.close()
self.assertEqual(resp.closed, True)
# Try closing with an `httplib.HTTPResponse`, because it has an
# `isclosed` method.
hlr = OldHTTPResponse(socket.socket())
resp2 = HTTPResponse(hlr, preload_content=False)
self.assertEqual(resp2.closed, False)
resp2.close()
self.assertEqual(resp2.closed, True)
#also try when only data is present.
resp3 = HTTPResponse('foodata')
self.assertRaises(IOError, resp3.fileno)
resp3._fp = 2
# A corner case where _fp is present but doesn't have `closed`,
# `isclosed`, or `fileno`. Unlikely, but possible.
self.assertEqual(resp3.closed, True)
self.assertRaises(IOError, resp3.fileno)
def test_io_bufferedreader(self):
fp = BytesIO(b'foo')
resp = HTTPResponse(fp, preload_content=False)
br = BufferedReader(resp)
self.assertEqual(br.read(), b'foo')
br.close()
self.assertEqual(resp.closed, True)
def test_streaming(self):
fp = BytesIO(b'foo')
resp = HTTPResponse(fp, preload_content=False)
stream = resp.stream(2, decode_content=False)
self.assertEqual(next(stream), b'fo')
self.assertEqual(next(stream), b'o')
self.assertRaises(StopIteration, next, stream)
def test_streaming_tell(self):
fp = BytesIO(b'foo')
resp = HTTPResponse(fp, preload_content=False)
stream = resp.stream(2, decode_content=False)
position = 0
position += len(next(stream))
self.assertEqual(2, position)
self.assertEqual(position, resp.tell())
position += len(next(stream))
self.assertEqual(3, position)
self.assertEqual(position, resp.tell())
self.assertRaises(StopIteration, next, stream)
def test_gzipped_streaming(self):
import zlib
compress = zlib.compressobj(6, zlib.DEFLATED, 16 + zlib.MAX_WBITS)
data = compress.compress(b'foo')
data += compress.flush()
fp = BytesIO(data)
resp = HTTPResponse(fp, headers={'content-encoding': 'gzip'},
preload_content=False)
stream = resp.stream(2)
self.assertEqual(next(stream), b'f')
self.assertEqual(next(stream), b'oo')
self.assertRaises(StopIteration, next, stream)
def test_gzipped_streaming_tell(self):
import zlib
compress = zlib.compressobj(6, zlib.DEFLATED, 16 + zlib.MAX_WBITS)
uncompressed_data = b'foo'
data = compress.compress(uncompressed_data)
data += compress.flush()
fp = BytesIO(data)
resp = HTTPResponse(fp, headers={'content-encoding': 'gzip'},
preload_content=False)
stream = resp.stream()
# Read everything
payload = next(stream)
self.assertEqual(payload, uncompressed_data)
self.assertEqual(len(data), resp.tell())
self.assertRaises(StopIteration, next, stream)
def test_deflate_streaming_tell_intermediate_point(self):
# Ensure that ``tell()`` returns the correct number of bytes when
# part-way through streaming compressed content.
import zlib
NUMBER_OF_READS = 10
class MockCompressedDataReading(BytesIO):
"""
A ByteIO-like reader returning ``payload`` in ``NUMBER_OF_READS``
calls to ``read``.
"""
def __init__(self, payload, payload_part_size):
self.payloads = [
payload[i*payload_part_size:(i+1)*payload_part_size]
for i in range(NUMBER_OF_READS+1)]
assert b"".join(self.payloads) == payload
def read(self, _):
# Amount is unused.
if len(self.payloads) > 0:
return self.payloads.pop(0)
return b""
uncompressed_data = zlib.decompress(ZLIB_PAYLOAD)
payload_part_size = len(ZLIB_PAYLOAD) // NUMBER_OF_READS
fp = MockCompressedDataReading(ZLIB_PAYLOAD, payload_part_size)
resp = HTTPResponse(fp, headers={'content-encoding': 'deflate'},
preload_content=False)
stream = resp.stream()
parts_positions = [(part, resp.tell()) for part in stream]
end_of_stream = resp.tell()
self.assertRaises(StopIteration, next, stream)
parts, positions = zip(*parts_positions)
# Check that the payload is equal to the uncompressed data
payload = b"".join(parts)
self.assertEqual(uncompressed_data, payload)
# Check that the positions in the stream are correct
expected = [(i+1)*payload_part_size for i in range(NUMBER_OF_READS)]
self.assertEqual(expected, list(positions))
# Check that the end of the stream is in the correct place
self.assertEqual(len(ZLIB_PAYLOAD), end_of_stream)
def test_deflate_streaming(self):
import zlib
data = zlib.compress(b'foo')
fp = BytesIO(data)
resp = HTTPResponse(fp, headers={'content-encoding': 'deflate'},
preload_content=False)
stream = resp.stream(2)
self.assertEqual(next(stream), b'f')
self.assertEqual(next(stream), b'oo')
self.assertRaises(StopIteration, next, stream)
def test_deflate2_streaming(self):
import zlib
compress = zlib.compressobj(6, zlib.DEFLATED, -zlib.MAX_WBITS)
data = compress.compress(b'foo')
data += compress.flush()
fp = BytesIO(data)
resp = HTTPResponse(fp, headers={'content-encoding': 'deflate'},
preload_content=False)
stream = resp.stream(2)
self.assertEqual(next(stream), b'f')
self.assertEqual(next(stream), b'oo')
self.assertRaises(StopIteration, next, stream)
def test_empty_stream(self):
fp = BytesIO(b'')
resp = HTTPResponse(fp, preload_content=False)
stream = resp.stream(2, decode_content=False)
self.assertRaises(StopIteration, next, stream)
def test_mock_httpresponse_stream(self):
# Mock out a HTTP Request that does enough to make it through urllib3's
# read() and close() calls, and also exhausts and underlying file
# object.
class MockHTTPRequest(object):
self.fp = None
def read(self, amt):
data = self.fp.read(amt)
if not data:
self.fp = None
return data
def close(self):
self.fp = None
bio = BytesIO(b'foo')
fp = MockHTTPRequest()
fp.fp = bio
resp = HTTPResponse(fp, preload_content=False)
stream = resp.stream(2)
self.assertEqual(next(stream), b'fo')
self.assertEqual(next(stream), b'o')
self.assertRaises(StopIteration, next, stream)
def test_get_case_insensitive_headers(self):
headers = {'host': 'example.com'}
r = HTTPResponse(headers=headers)
self.assertEqual(r.headers.get('host'), 'example.com')
self.assertEqual(r.headers.get('Host'), 'example.com')
if __name__ == '__main__':
unittest.main()
|