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microdot/tests/test_csrf.py

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Python
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import asyncio
import unittest
from microdot import Microdot
from microdot.cors import CORS
from microdot.csrf import CSRF
from microdot.test_client import TestClient
class TestCSRF(unittest.TestCase):
@classmethod
def setUpClass(cls):
if hasattr(asyncio, 'set_event_loop'):
asyncio.set_event_loop(asyncio.new_event_loop())
cls.loop = asyncio.get_event_loop()
def _run(self, coro):
return self.loop.run_until_complete(coro)
def test_protect_all_true(self):
app = Microdot()
csrf = CSRF(app)
@app.get('/')
def index(request):
return 204
@app.post('/submit')
def submit(request):
return 204
@app.post('/submit-exempt')
@csrf.exempt
def submit_exempt(request):
return 204
@app.get('/get-protected')
@csrf.protect
def get_protected(request):
return 204
client = TestClient(app)
res = self._run(client.get('/'))
self.assertEqual(res.status_code, 204)
res = self._run(client.get(
'/', headers={'Sec-Fetch-Site': 'cross-site'}
))
self.assertEqual(res.status_code, 204)
res = self._run(client.get(
'/', headers={'Origin': 'https://evil.com'}
))
self.assertEqual(res.status_code, 204)
res = self._run(client.post('/submit'))
self.assertEqual(res.status_code, 204)
res = self._run(client.post(
'/submit', headers={'Sec-Fetch-Site': 'cross-site'}
))
self.assertEqual(res.status_code, 403)
res = self._run(client.post(
'/submit', headers={'Sec-Fetch-Site': 'same-site'}
))
self.assertEqual(res.status_code, 403)
res = self._run(client.post(
'/submit', headers={'Sec-Fetch-Site': 'same-origin'}
))
self.assertEqual(res.status_code, 204)
res = self._run(client.post('/submit-exempt'))
self.assertEqual(res.status_code, 204)
res = self._run(client.post(
'/submit-exempt', headers={'Sec-Fetch-Site': 'cross-site'}
))
self.assertEqual(res.status_code, 204)
res = self._run(client.get('/get-protected'))
self.assertEqual(res.status_code, 204)
res = self._run(client.get(
'/get-protected', headers={'Sec-Fetch-Site': 'cross-site'}
))
self.assertEqual(res.status_code, 403)
def test_protect_all_false(self):
app = Microdot()
csrf = CSRF(protect_all=False)
csrf.initialize(app)
@app.get('/')
def index(request):
return 204
@app.post('/submit')
@csrf.protect
def submit(request):
return 204
@app.post('/submit-exempt')
def submit_exempt(request):
return 204
client = TestClient(app)
res = self._run(client.get('/'))
self.assertEqual(res.status_code, 204)
res = self._run(client.get(
'/', headers={'Sec-Fetch-Site': 'cross-site'}
))
self.assertEqual(res.status_code, 204)
res = self._run(client.get(
'/', headers={'Origin': 'https://evil.com'}
))
self.assertEqual(res.status_code, 204)
res = self._run(client.post('/submit'))
self.assertEqual(res.status_code, 204)
res = self._run(client.post(
'/submit', headers={'Sec-Fetch-Site': 'cross-site'}
))
self.assertEqual(res.status_code, 403)
res = self._run(client.post(
'/submit', headers={'Sec-Fetch-Site': 'same-site'}
))
self.assertEqual(res.status_code, 403)
res = self._run(client.post(
'/submit', headers={'Sec-Fetch-Site': 'same-origin'}
))
self.assertEqual(res.status_code, 204)
res = self._run(client.post('/submit-exempt'))
self.assertEqual(res.status_code, 204)
res = self._run(client.post(
'/submit-exempt', headers={'Sec-Fetch-Site': 'cross-site'}
))
self.assertEqual(res.status_code, 204)
def test_allow_subdomains(self):
app = Microdot()
csrf = CSRF(allow_subdomains=True)
csrf.initialize(app)
@app.get('/')
def index(request):
return 204
@app.post('/submit')
def submit(request):
return 204
@app.post('/submit-exempt')
@csrf.exempt
def submit_exempt(request):
return 204
client = TestClient(app)
res = self._run(client.get('/'))
self.assertEqual(res.status_code, 204)
res = self._run(client.get(
'/', headers={'Sec-Fetch-Site': 'cross-site'}
))
self.assertEqual(res.status_code, 204)
res = self._run(client.get(
'/', headers={'Origin': 'https://evil.com'}
))
self.assertEqual(res.status_code, 204)
res = self._run(client.post('/submit'))
self.assertEqual(res.status_code, 204)
res = self._run(client.post(
'/submit', headers={'Sec-Fetch-Site': 'cross-site'}
))
self.assertEqual(res.status_code, 403)
res = self._run(client.post(
'/submit', headers={'Sec-Fetch-Site': 'same-site'}
))
self.assertEqual(res.status_code, 204)
res = self._run(client.post(
'/submit', headers={'Sec-Fetch-Site': 'same-origin'}
))
self.assertEqual(res.status_code, 204)
res = self._run(client.post('/submit-exempt'))
self.assertEqual(res.status_code, 204)
res = self._run(client.post(
'/submit-exempt', headers={'Sec-Fetch-Site': 'cross-site'}
))
self.assertEqual(res.status_code, 204)
def test_allowed_origins(self):
app = Microdot()
cors = CORS(allowed_origins=['http://foo.com', 'https://bar.com:8888'])
csrf = CSRF()
csrf.initialize(app, cors)
@app.get('/')
def index(request):
return 204
@app.post('/submit')
def submit(request):
return 204
client = TestClient(app)
res = self._run(client.get('/'))
self.assertEqual(res.status_code, 204)
res = self._run(client.get(
'/', headers={'Origin': 'http://foo.com'}
))
self.assertEqual(res.status_code, 204)
res = self._run(client.get(
'/', headers={'Origin': 'https://baz.com'}
))
self.assertEqual(res.status_code, 204)
res = self._run(client.get(
'/', headers={'Origin': 'http://x.baz.com'}
))
self.assertEqual(res.status_code, 204)
res = self._run(client.post('/submit'))
self.assertEqual(res.status_code, 204)
res = self._run(client.post(
'/submit', headers={'Origin': 'https://bar.com:8888'}
))
self.assertEqual(res.status_code, 204)
res = self._run(client.post(
'/submit', headers={'Origin': 'http://bar.com:8888'}
))
self.assertEqual(res.status_code, 403)
res = self._run(client.post(
'/submit', headers={
'Sec-Fetch-Site': 'cross-site',
'Origin': 'https://bar.com:8888',
},
))
self.assertEqual(res.status_code, 204)
res = self._run(client.post(
'/submit', headers={
'Sec-Fetch-Site': 'cross-site',
'Origin': 'https://bar.com:8889',
},
))
self.assertEqual(res.status_code, 403)
res = self._run(client.post(
'/submit', headers={
'Sec-Fetch-Site': 'cross-site',
},
))
self.assertEqual(res.status_code, 403)
res = self._run(client.post(
'/submit', headers={'Origin': 'https://x.y.bar.com:8888'}
))
self.assertEqual(res.status_code, 403)
res = self._run(client.post(
'/submit', headers={'Origin': 'http://baz.com'}
))
self.assertEqual(res.status_code, 403)
def test_allowed_origins_with_subdomains(self):
app = Microdot()
cors = CORS(allowed_origins=['http://foo.com', 'https://bar.com:8888'])
csrf = CSRF(allow_subdomains=True)
csrf.initialize(app, cors)
@app.get('/')
def index(request):
return 204
@app.post('/submit')
def submit(request):
return 204
client = TestClient(app)
res = self._run(client.get('/'))
self.assertEqual(res.status_code, 204)
res = self._run(client.get(
'/', headers={'Origin': 'http://foo.com'}
))
self.assertEqual(res.status_code, 204)
res = self._run(client.get(
'/', headers={'Origin': 'https://baz.com'}
))
self.assertEqual(res.status_code, 204)
res = self._run(client.get(
'/', headers={'Origin': 'http://x.baz.com'}
))
self.assertEqual(res.status_code, 204)
res = self._run(client.post('/submit'))
self.assertEqual(res.status_code, 204)
res = self._run(client.post(
'/submit', headers={'Origin': 'https://bar.com:8888'}
))
self.assertEqual(res.status_code, 204)
res = self._run(client.post(
'/submit', headers={'Origin': 'http://bar.com:8888'}
))
self.assertEqual(res.status_code, 403)
res = self._run(client.post(
'/submit', headers={'Origin': 'https://x.y.bar.com:8888'}
))
self.assertEqual(res.status_code, 204)
res = self._run(client.post(
'/submit', headers={'Origin': 'http://x.y.bar.com:8888'}
))
self.assertEqual(res.status_code, 403)
res = self._run(client.post(
'/submit', headers={'Origin': 'http://baz.com'}
))
self.assertEqual(res.status_code, 403)
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