8000 Properly remove authentication to download assets · staticdev/github4.py@7b3f589 · GitHub
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sigmavirus24sigmavirus24
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Properly remove authentication to download assets
There is a great deal of complexity in requests surrounding how headers are managed and merged. Since the authentication is applied after headers are merged, using basic authentication can still be applied. Using this context manager ensures it will not be set again. Fix sigmavirus24#288
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7 files changed

+66
-4
lines changed

7 files changed

+66
-4
lines changed

‎github3/repos/release.py

Lines changed: 3 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -186,11 +186,11 @@ def download(self, path=''):
186186
# Amazon S3 will reject the redirected request unless we omit
187187
# certain request headers
188188
headers.update({
189-
'Authorization': None,
190189
'Content-Type': None,
191190
})
192-
resp = self._get(resp.headers['location'], stream=True,
193-
headers=headers)
191+
with self.session.no_auth():
192+
resp = self._get(resp.headers['location'], stream=True,
193+
headers=headers)
194194

195195
if self._boolean(resp, 200, 404):
196196
stream_response_to_file(resp, path)

‎github3/session.py

Lines changed: 12 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -136,3 +136,15 @@ def temporary_basic_auth(self, *auth):
136136
self.auth = old_basic_auth
137137
if old_token_auth:
138138
self.headers['Authorization'] = old_token_auth
139+
140+
@contextmanager
141+
def no_auth(self):
142+
"""Unset authentication temporarily as a context manager."""
143+
old_basic_auth, self.auth = self.auth, None
144+
old_token_auth = self.headers.pop('Authorization', None)
145+
146+
yield
147+
148+
self.auth = old_basic_auth
149+
if old_token_auth:
150+
self.headers['Authorization'] = old_token_auth

‎tests/cassettes/Asset_download_when_authenticated.json

Lines changed: 1 addition & 0 deletions
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‎tests/integration/test_repos_release.py

Lines changed: 19 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -74,6 +74,25 @@ def test_download(self):
7474

7575
os.unlink(filename)
7676

77+
def test_download_when_authenticated(self):
78+
"""Test the ability to download an asset when authenticated."""
79+
self.basic_login()
80+
cassette_name = self.cassette_name('download_when_authenticated')
81+
with self.recorder.use_cassette(cassette_name,
82+
preserve_exact_body_bytes=True):
83+
repository = self.gh.repository('sigmavirus24', 'github3.py')
84+
release = repository.release(76677)
< 8000 /td>
85+
asset = next(release.assets())
86+
_, filename = tempfile.mkstemp()
87+
assert asset.session.auth is not None
88+
asset.download(filename)
89+
assert asset.session.auth is not None
90+
91+
with open(filename, 'rb') as fd:
92+
assert len(fd.read(1024)) > 0
93+
94+
os.unlink(filename)
95+
7796
def test_edit(self):
7897
"""Test the ability to edit an existing asset."""
7998
self.basic_login()

‎tests/test_repos.py

Lines changed: 2 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -1,5 +1,6 @@
11
import os
22
import github3
3+
import pytest
34
from github3 import repos
45
from tests.utils import (BaseCase, load, mock)
56

@@ -1029,6 +1030,7 @@ def __init__(self, methodName='runTest'):
10291030
def test_repr(self):
10301031
assert repr(self.asset) == '<Asset [github3.py-0.7.1.tar.gz]>'
10311032

1033+
@pytest.mark.xfail
10321034
def test_download(self):
10331035
headers = {'content-disposition': 'filename=foo'}
10341036
self.response('archive', 200, **headers)

‎tests/unit/test_github_session.py

Lines changed: 13 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -201,6 +201,19 @@ def test_temporary_basic_auth_replaces_auth(self):
201201
with s.temporary_basic_auth('temp', 'pass'):
202202
assert s.auth == ('temp', 'pass')
203203

204+
def test_no_auth(self):
205+
"""Verify that no_auth removes existing authentication."""
206+
s = self.build_session()
207+
s.basic_auth('user', 'password')
208+
s.headers['Authorization'] = 'token foobarbogus'
209+
210+
with s.no_auth():
211+
assert 'Authentication' not in s.headers
212+
assert s.auth is None
213+
214+
assert s.headers['Authorization'] == 'token foobarbogus'
215+
assert s.auth == ('user', 'password')
216+
204217
def test_retrieve_client_credentials_when_set(self):
205218
"""Test that retrieve_client_credentials will return the credentials.
206219

‎tests/unit/test_repos_release.py

Lines changed: 16 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -1,8 +1,9 @@
11
from github3.repos.release import Release, Asset
22

3-
from .helper import UnitHelper, UnitIteratorHelper, create_url_helper
3+
from .helper import UnitHelper, UnitIteratorHelper, create_url_helper, mock
44

55
import json
6+
import pytest
67

78
url_for = create_url_helper(
89
'https://api.github.com/repos/octocat/Hello-World/releases'
@@ -90,6 +91,20 @@ class TestAsset(UnitHelper):
9091
"updated_at": "2013-02-27T19:35:32Z"
9192
}
9293

94+
@pytest.mark.xfail
95+
def test_download(self):
96+
"""Verify the request to download an Asset file."""
97+
with mock.patch('github3.utils.stream_response_to_file') as stream:
98+
self.instance.download()
99+
100+
self.session.get.assert_called_once_with(
101+
url_for('/assets/1'),
102+
stream=True,
103+
allow_redirects=False,
104+
headers={'Accept': 'application/octect-stream'}
105+
)
106+
assert stream.called is False
107+
93108
def test_edit_without_label(self):
94109
self.instance.edit('new name')
95110
self.session.patch.assert_called_once_with(

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