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"""
Copyright (c) 2023 Proton AG
This file is part of Proton.
Proton is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Proton is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with ProtonVPN. If not, see <https://www.gnu.org/licenses/>.
"""
import unittest
class TestTLSValidation(unittest.IsolatedAsyncioTestCase):
async def test_successful(self):
from proton.session import Session
from proton.session.environments import ProdEnvironment
s = Session()
s.environment = ProdEnvironment()
assert await s.async_api_request('/tests/ping') == {'Code': 1000}
async def test_without_pinning(self):
from proton.session import Session
from proton.session.environments import ProdEnvironment
class ProdWithoutPinningEnvironment(ProdEnvironment):
@property
def tls_pinning_hashes(self):
return None
@property
def tls_pinning_hashes_ar(self):
return None
s = Session()
s.environment = ProdWithoutPinningEnvironment()
assert await s.async_api_request('/tests/ping') == {'Code': 1000}
async def test_bad_pinning_url_changed(self):
from proton.session import Session
from proton.session.environments import ProdEnvironment
from proton.session.exceptions import ProtonAPINotReachable
from proton.session.transports.aiohttp import AiohttpTransport
class BrokenProdEnvironment(ProdEnvironment):
@property
def http_base_url(self):
# This is one of the URLs, but it uses different certificates than prod api, so pinning will fail
return "https://www.protonvpn.com/api/"
s = Session()
s.environment = BrokenProdEnvironment()
s.transport_factory = AiohttpTransport
with self.assertRaises(ProtonAPINotReachable) as e:
assert await s.async_api_request('/tests/ping') == {'Code': 1000}
assert str(e.exception).startswith('TLS pinning verification failed')
async def test_bad_pinning_fingerprint_changed(self):
from proton.session import Session
from proton.session.environments import ProdEnvironment
from proton.session.exceptions import ProtonAPINotReachable
from proton.session.transports.aiohttp import AiohttpTransport
class BrokenProdEnvironment(ProdEnvironment):
@property
def tls_pinning_hashes(self):
# This is an invalid hash
return set([
"aaaaaaakFkM8qJClsuWgUzxgBkePfRCkRpqUesyDmeE=",
])
s = Session()
s.environment = BrokenProdEnvironment()
s.transport_factory = AiohttpTransport
with self.assertRaises(ProtonAPINotReachable) as e:
assert await s.async_api_request('/tests/ping') == {'Code': 1000}
assert str(e.exception).startswith('TLS pinning verification failed')
async def test_pinning_disabled(self):
from proton.session import Session
from proton.session.environments import ProdEnvironment
from proton.session.exceptions import ProtonAPINotReachable
class PinningDisabledProdEnvironment(ProdEnvironment):
@property
def http_base_url(self):
# This is one of the URLs, but it uses different certificates than prod api, so pinning would fail if it was used
return "https://www.protonvpn.com/api/"
@property
def tls_pinning_hashes(self):
return None
s = Session()
s.environment = PinningDisabledProdEnvironment()
with self.assertRaises(ProtonAPINotReachable) as e:
assert await s.async_api_request('/tests/ping') == {'Code': 1000}
# Will probably return "API returned non-json results"
assert not str(e.exception).startswith('TLS pinning verification failed')
async def test_bad_ssl(self):
from proton.session import Session
from proton.session.environments import ProdEnvironment
from proton.session.exceptions import ProtonAPINotReachable
from proton.session.transports.aiohttp import AiohttpTransport
class BrokenProdEnvironment(ProdEnvironment):
@property
def http_base_url(self):
# This will break, as it's a self signed certificate
return "https://self-signed.badssl.com/"
@property
def tls_pinning_hashes(self):
return None
s = Session()
s.environment = BrokenProdEnvironment()
s.transport_factory = AiohttpTransport
with self.assertRaises(ProtonAPINotReachable) as e:
assert await s.async_api_request('/tests/ping') == {'Code': 1000}
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