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
|
# This file is part of cloud-init. See LICENSE file for license information.
from cloudinit.url_helper import (
NOT_FOUND, UrlError, REDACTED, oauth_headers, read_file_or_url,
retry_on_url_exc)
from cloudinit.tests.helpers import CiTestCase, mock, skipIf
from cloudinit import util
from cloudinit import version
import httpretty
import requests
try:
import oauthlib
assert oauthlib # avoid pyflakes error F401: import unused
_missing_oauthlib_dep = False
except ImportError:
_missing_oauthlib_dep = True
M_PATH = 'cloudinit.url_helper.'
class TestOAuthHeaders(CiTestCase):
def test_oauth_headers_raises_not_implemented_when_oathlib_missing(self):
"""oauth_headers raises a NotImplemented error when oauth absent."""
with mock.patch.dict('sys.modules', {'oauthlib': None}):
with self.assertRaises(NotImplementedError) as context_manager:
oauth_headers(1, 2, 3, 4, 5)
self.assertEqual(
'oauth support is not available',
str(context_manager.exception))
@skipIf(_missing_oauthlib_dep, "No python-oauthlib dependency")
@mock.patch('oauthlib.oauth1.Client')
def test_oauth_headers_calls_oathlibclient_when_available(self, m_client):
"""oauth_headers calls oaut1.hClient.sign with the provided url."""
class fakeclient(object):
def sign(self, url):
# The first and 3rd item of the client.sign tuple are ignored
return ('junk', url, 'junk2')
m_client.return_value = fakeclient()
return_value = oauth_headers(
'url', 'consumer_key', 'token_key', 'token_secret',
'consumer_secret')
self.assertEqual('url', return_value)
class TestReadFileOrUrl(CiTestCase):
with_logs = True
def test_read_file_or_url_str_from_file(self):
"""Test that str(result.contents) on file is text version of contents.
It should not be "b'data'", but just "'data'" """
tmpf = self.tmp_path("myfile1")
data = b'This is my file content\n'
util.write_file(tmpf, data, omode="wb")
result = read_file_or_url("file://%s" % tmpf)
self.assertEqual(result.contents, data)
self.assertEqual(str(result), data.decode('utf-8'))
@httpretty.activate
def test_read_file_or_url_str_from_url(self):
"""Test that str(result.contents) on url is text version of contents.
It should not be "b'data'", but just "'data'" """
url = 'http://hostname/path'
data = b'This is my url content\n'
httpretty.register_uri(httpretty.GET, url, data)
result = read_file_or_url(url)
self.assertEqual(result.contents, data)
self.assertEqual(str(result), data.decode('utf-8'))
@httpretty.activate
def test_read_file_or_url_str_from_url_redacting_headers_from_logs(self):
"""Headers are redacted from logs but unredacted in requests."""
url = 'http://hostname/path'
headers = {'sensitive': 'sekret', 'server': 'blah'}
httpretty.register_uri(httpretty.GET, url)
read_file_or_url(url, headers=headers, headers_redact=['sensitive'])
logs = self.logs.getvalue()
for k in headers.keys():
self.assertEqual(headers[k], httpretty.last_request().headers[k])
self.assertIn(REDACTED, logs)
self.assertNotIn('sekret', logs)
@httpretty.activate
def test_read_file_or_url_str_from_url_redacts_noheaders(self):
"""When no headers_redact, header values are in logs and requests."""
url = 'http://hostname/path'
headers = {'sensitive': 'sekret', 'server': 'blah'}
httpretty.register_uri(httpretty.GET, url)
read_file_or_url(url, headers=headers)
for k in headers.keys():
self.assertEqual(headers[k], httpretty.last_request().headers[k])
logs = self.logs.getvalue()
self.assertNotIn(REDACTED, logs)
self.assertIn('sekret', logs)
@mock.patch(M_PATH + 'readurl')
def test_read_file_or_url_passes_params_to_readurl(self, m_readurl):
"""read_file_or_url passes all params through to readurl."""
url = 'http://hostname/path'
response = 'This is my url content\n'
m_readurl.return_value = response
params = {'url': url, 'timeout': 1, 'retries': 2,
'headers': {'somehdr': 'val'},
'data': 'data', 'sec_between': 1,
'ssl_details': {'cert_file': '/path/cert.pem'},
'headers_cb': 'headers_cb', 'exception_cb': 'exception_cb'}
self.assertEqual(response, read_file_or_url(**params))
params.pop('url') # url is passed in as a positional arg
self.assertEqual([mock.call(url, **params)], m_readurl.call_args_list)
def test_wb_read_url_defaults_honored_by_read_file_or_url_callers(self):
"""Readurl param defaults used when unspecified by read_file_or_url
Param defaults tested are as follows:
retries: 0, additional headers None beyond default, method: GET,
data: None, check_status: True and allow_redirects: True
"""
url = 'http://hostname/path'
m_response = mock.MagicMock()
class FakeSession(requests.Session):
@classmethod
def request(cls, **kwargs):
self.assertEqual(
{'url': url, 'allow_redirects': True, 'method': 'GET',
'headers': {
'User-Agent': 'Cloud-Init/%s' % (
version.version_string())}},
kwargs)
return m_response
with mock.patch(M_PATH + 'requests.Session') as m_session:
error = requests.exceptions.HTTPError('broke')
m_session.side_effect = [error, FakeSession()]
# assert no retries and check_status == True
with self.assertRaises(UrlError) as context_manager:
response = read_file_or_url(url)
self.assertEqual('broke', str(context_manager.exception))
# assert default headers, method, url and allow_redirects True
# Success on 2nd call with FakeSession
response = read_file_or_url(url)
self.assertEqual(m_response, response._response)
class TestRetryOnUrlExc(CiTestCase):
def test_do_not_retry_non_urlerror(self):
"""When exception is not UrlError return False."""
myerror = IOError('something unexcpected')
self.assertFalse(retry_on_url_exc(msg='', exc=myerror))
def test_perform_retries_on_not_found(self):
"""When exception is UrlError with a 404 status code return True."""
myerror = UrlError(cause=RuntimeError(
'something was not found'), code=NOT_FOUND)
self.assertTrue(retry_on_url_exc(msg='', exc=myerror))
def test_perform_retries_on_timeout(self):
"""When exception is a requests.Timout return True."""
myerror = UrlError(cause=requests.Timeout('something timed out'))
self.assertTrue(retry_on_url_exc(msg='', exc=myerror))
# vi: ts=4 expandtab
|
