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"""
Copyright (c) 2023 Proton AG
This file is part of Proton VPN.
Proton VPN 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 VPN 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 os
import pytest
import tempfile
from proton.vpn.connection import VPNServer, ProtocolPorts
from proton.vpn.connection.vpnconfiguration import (OpenVPNTCPConfig,
OpenVPNUDPConfig,
OVPNConfig,
VPNConfiguration,
WireguardConfig)
from .common import (CWD, MockSettings, MockVpnCredentials)
import shutil
VPNCONFIG_DIR = os.path.join(CWD, "vpnconfig")
def setup_module(module):
if not os.path.isdir(VPNCONFIG_DIR):
os.makedirs(VPNCONFIG_DIR)
def teardown_module(module):
if os.path.isdir(VPNCONFIG_DIR):
shutil.rmtree(VPNCONFIG_DIR)
@pytest.fixture
def modified_exec_env(monkeypatch):
from proton.utils.environment import ExecutionEnvironment
with tempfile.TemporaryDirectory() as temp_dir:
monkeypatch.setattr(ExecutionEnvironment, "path_runtime", temp_dir)
yield
@pytest.fixture
def vpn_server():
return VPNServer(
server_ip="10.10.1.1",
domain="com.test-domain.www",
x25519pk="wg_public_key",
openvpn_ports=ProtocolPorts(tcp=[80, 1194], udp=[445, 5995]),
wireguard_ports=ProtocolPorts(tcp=[443, 88], udp=[445]),
server_name="TestServer#10",
server_id="OYB-3pMQQA2Z2Qnp5s5nIvTVO2...lRjxhx9DCAUM9uXfM2ZUFjzPXw==",
has_ipv6_support=False,
label="0"
)
class MockVpnConfiguration(VPNConfiguration):
extension = ".test-extension"
def generate(self):
return "test-content"
def test_not_implemented_generate(vpn_server):
cfg = VPNConfiguration(vpn_server, MockVpnCredentials(), MockSettings())
with pytest.raises(NotImplementedError):
cfg.generate()
def test_ensure_configuration_file_is_created(modified_exec_env, vpn_server):
cfg = MockVpnConfiguration(vpn_server, MockVpnCredentials(), MockSettings())
with cfg as f:
assert os.path.isfile(f)
def test_ensure_configuration_file_is_deleted(monkeypatch, vpn_server):
monkeypatch.setattr(
"proton.utils.environment.ExecutionEnvironment.path_runtime",
tempfile.mkdtemp()
)
cfg = MockVpnConfiguration(vpn_server, MockVpnCredentials(), MockSettings())
with cfg as f:
assert os.path.isfile(f)
assert not os.path.isfile(f)
def test_ensure_generate_is_returning_expected_content(monkeypatch, vpn_server):
temp_dir = tempfile.mkdtemp()
monkeypatch.setattr("proton.utils.environment.ExecutionEnvironment.path_runtime", temp_dir)
cfg = MockVpnConfiguration(vpn_server, MockVpnCredentials(), MockSettings())
with cfg as f, open(f) as _f:
assert _f.readline() == MockVpnConfiguration(vpn_server, MockVpnCredentials(), MockSettings()).generate()
def test_ensure_same_configuration_file_in_case_of_duplicate(monkeypatch, vpn_server):
monkeypatch.setattr(
"proton.utils.environment.ExecutionEnvironment.path_runtime",
tempfile.mkdtemp()
)
cfg = MockVpnConfiguration(vpn_server, MockVpnCredentials(), MockSettings())
with cfg as f, cfg as _f:
assert os.path.isfile(f) and os.path.isfile(_f) and f == _f
@pytest.mark.parametrize(
"expected_mask, cidr", [
("0.0.0.0", "0"),
("255.0.0.0", "8"),
("255.255.0.0", "16"),
("255.255.255.0", "24"),
("255.255.255.255", "32")
]
)
def test_cidr_to_netmask(cidr, expected_mask, vpn_server):
cfg = MockVpnConfiguration(vpn_server, MockVpnCredentials(), MockSettings())
assert cfg.cidr_to_netmask(cidr) == expected_mask
@pytest.mark.parametrize("ipv4", ["192.168.1.1", "109.162.10.9", "1.1.1.1", "10.10.10.10"])
def test_valid_ips(ipv4, vpn_server):
cfg = MockVpnConfiguration(vpn_server, MockVpnCredentials(), MockSettings())
cfg.is_valid_ipv4(ipv4)
@pytest.mark.parametrize("ipv4", ["192.168.1.90451", "109.", "1.-.1.1", "1111.10.10.10"])
def test_not_valid_ips(ipv4, vpn_server):
cfg = MockVpnConfiguration(vpn_server, MockVpnCredentials(), MockSettings())
cfg.is_valid_ipv4(ipv4)
@pytest.mark.parametrize("protocol", ["udp", "tcp"])
def test_ovpnconfig_with_settings(protocol, modified_exec_env, vpn_server):
ovpn_cfg = OVPNConfig(vpn_server, MockVpnCredentials(), MockSettings())
ovpn_cfg._protocol = protocol
output = ovpn_cfg.generate()
assert ovpn_cfg._vpnserver.server_ip in output
@pytest.mark.parametrize("protocol", ["udp", "tcp"])
def test_ovpnconfig_with_certificate(protocol, modified_exec_env, vpn_server):
credentials = MockVpnCredentials()
ovpn_cfg = OVPNConfig(vpn_server, MockVpnCredentials(), MockSettings(),
use_certificate=True)
ovpn_cfg._protocol = protocol
output = ovpn_cfg.generate()
assert credentials.pubkey_credentials.certificate_pem in output
assert credentials.pubkey_credentials.openvpn_private_key in output
assert "auth-user-pass" not in output
def test_wireguard_config_content_generation(modified_exec_env, vpn_server):
credentials = MockVpnCredentials()
settings = MockSettings()
wg_cfg = WireguardConfig(vpn_server, credentials, settings, True)
generated_cfg = wg_cfg.generate()
assert credentials.pubkey_credentials.wg_private_key in generated_cfg
assert vpn_server.x25519pk in generated_cfg
assert vpn_server.server_ip in generated_cfg
def test_wireguard_with_non_certificate(modified_exec_env, vpn_server):
wg_cfg = WireguardConfig(vpn_server, MockVpnCredentials(), MockSettings())
with pytest.raises(RuntimeError):
wg_cfg.generate()
@pytest.mark.parametrize(
"protocol, expected_class", [
("openvpn-tcp", OpenVPNTCPConfig),
("openvpn-udp", OpenVPNUDPConfig),
("wireguard", WireguardConfig),
]
)
def test_get_expected_config_from_factory(protocol, expected_class, vpn_server):
config = VPNConfiguration.from_factory(protocol)
assert isinstance(
config(vpn_server, MockVpnCredentials(), MockSettings()),
expected_class
)
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