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github_auth_test.py
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github_auth_test.py
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#!/usr/bin/env python
# Copyright 2016 The Kubernetes Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import unittest
import urlparse
import webtest
import gcs_async_test
import main
CLIENT_ID = '12345'
CLIENT_SECRET = 'swordfish'
GH_LOGIN_CODE = 'somerandomcode'
main.app.config['github_client'] = {
'id': CLIENT_ID,
'secret': CLIENT_SECRET,
}
main.app.config['webapp2_extras.sessions']['secret_key'] = 'abcd'
app = webtest.TestApp(main.app)
VEND_URL = 'https://github.com/login/oauth/access_token'
USER_URL = 'https://api.github.com/user'
class TestGithubAuth(unittest.TestCase):
def setUp(self):
app.reset()
self.testbed.init_app_identity_stub()
self.testbed.init_urlfetch_stub()
self.calls = []
self.results = {
VEND_URL: ('{"access_token": "token"}', 200),
USER_URL: ('{"login": "foo"}', 200),
}
gcs_async_test.install_handler_dispatcher(
self.testbed.get_stub('urlfetch'),
(lambda url: url in self.results),
self.dispatcher)
def dispatcher(self, method, url, payload, headers):
self.calls.append([method, url, payload, headers])
return self.results[url]
@staticmethod
def do_phase1(arg=''):
return app.get('/github_auth' + arg)
@staticmethod
def parse_phase1(phase1):
parsed = urlparse.urlparse(phase1.location)
query = urlparse.parse_qs(parsed.query)
state = query.pop('state')[0]
return state, query
def do_phase2(self, phase1=None, status=None):
if not phase1:
phase1 = self.do_phase1()
state, query = self.parse_phase1(phase1)
code = GH_LOGIN_CODE
return app.get(
query['redirect_uri'][0],
{'code': code, 'state': state},
status=status)
def test_login_works(self):
"oauth login works"
# 1) Redirect to github
resp = self.do_phase1()
self.assertEqual(resp.status_code, 302)
loc = resp.location
assert loc.startswith('https://github.com/login/oauth/authorize'), loc
state, query = self.parse_phase1(resp)
self.assertEqual(query, {
'redirect_uri': ['http://localhost/github_auth/done'],
'client_id': [CLIENT_ID]})
# 2) Github redirects back
resp = self.do_phase2(resp)
self.assertIn('Welcome, foo', resp)
# Test that we received the right calls to our fake API.
self.assertEqual(len(self.calls), 2)
vend_call = self.calls[0]
user_call = self.calls[1]
self.assertEqual(vend_call[:2], ['POST', VEND_URL])
self.assertEqual(user_call[:3], ['GET', USER_URL, None])
self.assertEqual(
urlparse.parse_qs(vend_call[2]),
dict(client_secret=[CLIENT_SECRET], state=[state],
code=[GH_LOGIN_CODE], client_id=[CLIENT_ID]))
vend_headers = {h.key(): h.value() for h in vend_call[3]}
self.assertEqual(vend_headers, {'Accept': 'application/json'})
def test_redirect_pr(self):
"login can redirect to another page at the end"
phase1 = self.do_phase1('/pr')
phase2 = self.do_phase2(phase1)
self.assertEqual(phase2.status_code, 302)
self.assertEqual(phase2.location, 'http://localhost/pr')
def test_redirect_ignored(self):
"login only redirects to allowed URLs"
phase1 = self.do_phase1('/bad/redirect')
phase2 = self.do_phase2(phase1)
self.assertEqual(phase2.status_code, 200)
def test_phase2_missing_cookie(self):
"missing cookie for phase2 fails (CSRF)"
phase1 = self.do_phase1()
app.reset() # clears cookies
self.do_phase2(phase1, status=400)
def test_phase2_mismatched_state(self):
"wrong state for phase2 fails (CSRF)"
phase1 = self.do_phase1()
phase1.location = phase1.location.replace('state=', 'state=NOPE')
self.do_phase2(phase1, status=400)
def test_phase2_vend_failure(self):
"GitHub API error vending tokens raises 500"
self.results[VEND_URL] = ('', 403)
self.do_phase2(status=500)
def test_phase2_user_failure(self):
"GitHub API error getting user information raises 500"
self.results[USER_URL] = ('', 403)
self.do_phase2(status=500)