1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
|
// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/ash/net/network_diagnostics/tls_prober.h"
#include <memory>
#include <optional>
#include <utility>
#include <vector>
#include "base/functional/bind.h"
#include "base/strings/string_number_conversions.h"
#include "base/test/bind.h"
#include "base/test/test_future.h"
#include "chrome/browser/ash/net/network_diagnostics/fake_network_context.h"
#include "content/public/browser/network_service_instance.h"
#include "content/public/test/browser_task_environment.h"
#include "mojo/public/cpp/bindings/receiver.h"
#include "mojo/public/cpp/bindings/remote.h"
#include "mojo/public/cpp/system/data_pipe.h"
#include "net/base/host_port_pair.h"
#include "net/base/ip_endpoint.h"
#include "net/base/net_errors.h"
#include "net/http/http_status_code.h"
#include "net/ssl/ssl_server_config.h"
#include "net/test/embedded_test_server/embedded_test_server.h"
#include "net/test/embedded_test_server/http_response.h"
#include "services/cert_verifier/public/mojom/cert_verifier_service_factory.mojom.h"
#include "services/network/network_service.h"
#include "services/network/test/test_network_context.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace ash::network_diagnostics {
namespace {
using ProbeExitEnum = TlsProber::ProbeExitEnum;
} // namespace
class TlsProberWithFakeNetworkContextTest : public ::testing::Test {
public:
TlsProberWithFakeNetworkContextTest() = default;
TlsProberWithFakeNetworkContextTest(
const TlsProberWithFakeNetworkContextTest&) = delete;
TlsProberWithFakeNetworkContextTest& operator=(
const TlsProberWithFakeNetworkContextTest&) = delete;
void InitializeProberNetworkContext(
std::unique_ptr<FakeNetworkContext::DnsResult> fake_dns_result,
std::optional<net::Error> tcp_connect_code,
std::optional<net::Error> tls_upgrade_code) {
fake_network_context_ = std::make_unique<FakeNetworkContext>();
fake_network_context_->set_fake_dns_result(std::move(fake_dns_result));
fake_network_context_->SetTCPConnectCode(tcp_connect_code);
fake_network_context_->SetTLSUpgradeCode(tls_upgrade_code);
}
void CreateAndExecuteTlsProber(net::HostPortPair host_port_pair,
bool negotiate_tls,
int expected_result,
ProbeExitEnum expected_exit_enum) {
base::test::TestFuture<int, ProbeExitEnum> future;
tls_prober_ = std::make_unique<TlsProber>(
base::BindLambdaForTesting([&]() -> network::mojom::NetworkContext* {
return fake_network_context();
}),
host_port_pair, negotiate_tls, future.GetCallback());
auto [probe_result, probe_exit_enum] = future.Take();
ASSERT_EQ(probe_result, expected_result);
ASSERT_EQ(probe_exit_enum, expected_exit_enum);
}
FakeNetworkContext* fake_network_context() {
return fake_network_context_.get();
}
protected:
const net::HostPortPair kFakeTlsHostPortPair =
net::HostPortPair::FromString("fake_hostname.com:443");
const net::HostPortPair kFakeTcpHostPortPair =
net::HostPortPair::FromString("fake_hostname.com:80");
const net::IPEndPoint kFakeIPAddress{
net::IPEndPoint(net::IPAddress::IPv4Localhost(), /*port=*/1234)};
private:
content::BrowserTaskEnvironment task_environment_;
std::unique_ptr<FakeNetworkContext> fake_network_context_;
std::unique_ptr<TlsProber> tls_prober_;
};
TEST_F(TlsProberWithFakeNetworkContextTest,
SocketConnectedAndUpgradedSuccessfully) {
auto fake_dns_result = std::make_unique<FakeNetworkContext::DnsResult>(
net::OK, net::ResolveErrorInfo(net::OK), net::AddressList(kFakeIPAddress),
/*endpoint_results_with_metadata=*/std::nullopt);
net::Error tcp_connect_code = net::OK;
net::Error tls_upgrade_code = net::OK;
InitializeProberNetworkContext(std::move(fake_dns_result), tcp_connect_code,
tls_upgrade_code);
CreateAndExecuteTlsProber(kFakeTlsHostPortPair, /*negotiate_tls=*/true,
net::OK, ProbeExitEnum::kSuccess);
}
TEST_F(TlsProberWithFakeNetworkContextTest, FailedDnsLookup) {
auto fake_dns_result = std::make_unique<FakeNetworkContext::DnsResult>(
net::ERR_NAME_NOT_RESOLVED,
net::ResolveErrorInfo(net::ERR_NAME_NOT_RESOLVED),
/*resolved_addresses=*/std::nullopt,
/*endpoint_results_with_metadata=*/std::nullopt);
// Neither TCP connect nor TLS upgrade should not be called in this scenario.
InitializeProberNetworkContext(std::move(fake_dns_result),
/*tcp_connect_code=*/std::nullopt,
/*tls_upgrade_code=*/std::nullopt);
CreateAndExecuteTlsProber(kFakeTlsHostPortPair, /*negotiate_tls=*/true,
net::ERR_NAME_NOT_RESOLVED,
ProbeExitEnum::kDnsFailure);
}
TEST_F(TlsProberWithFakeNetworkContextTest, MojoDisconnectDuringDnsLookup) {
// Host resolution will not be successful due to Mojo disconnect. Neither TCP
// connect nor TLS upgrade should not be called in this scenario.
InitializeProberNetworkContext(/*fake_dns_result=*/{},
/*tcp_connect_code=*/std::nullopt,
/*tls_upgrade_code=*/std::nullopt);
fake_network_context()->set_disconnect_during_host_resolution(true);
CreateAndExecuteTlsProber(kFakeTlsHostPortPair, /*negotiate_tls=*/true,
net::ERR_FAILED, ProbeExitEnum::kDnsFailure);
}
TEST_F(TlsProberWithFakeNetworkContextTest, FailedTcpConnection) {
auto fake_dns_result = std::make_unique<FakeNetworkContext::DnsResult>(
net::OK, net::ResolveErrorInfo(net::OK), net::AddressList(kFakeIPAddress),
/*endpoint_results_with_metadata=*/std::nullopt);
net::Error tcp_connect_code = net::ERR_CONNECTION_FAILED;
// TLS upgrade should not be called in this scenario.
InitializeProberNetworkContext(std::move(fake_dns_result), tcp_connect_code,
/*tls_upgrade_code=*/std::nullopt);
CreateAndExecuteTlsProber(kFakeTlsHostPortPair, /*negotiate_tls=*/true,
net::ERR_CONNECTION_FAILED,
ProbeExitEnum::kTcpConnectionFailure);
}
TEST_F(TlsProberWithFakeNetworkContextTest, FailedTlsUpgrade) {
auto fake_dns_result = std::make_unique<FakeNetworkContext::DnsResult>(
net::OK, net::ResolveErrorInfo(net::OK), net::AddressList(kFakeIPAddress),
/*endpoint_results_with_metadata=*/std::nullopt);
net::Error tcp_connect_code = net::OK;
net::Error tls_upgrade_code = net::ERR_SSL_PROTOCOL_ERROR;
InitializeProberNetworkContext(std::move(fake_dns_result), tcp_connect_code,
tls_upgrade_code);
CreateAndExecuteTlsProber(kFakeTlsHostPortPair, /*negotiate_tls=*/true,
net::ERR_SSL_PROTOCOL_ERROR,
ProbeExitEnum::kTlsUpgradeFailure);
}
TEST_F(TlsProberWithFakeNetworkContextTest,
MojoDisconnectedDuringTcpConnectionAttempt) {
auto fake_dns_result = std::make_unique<FakeNetworkContext::DnsResult>(
net::OK, net::ResolveErrorInfo(net::OK), net::AddressList(kFakeIPAddress),
/*endpoint_results_with_metadata=*/std::nullopt);
// Since the TCP connection is disconnected, no connection codes are needed.
InitializeProberNetworkContext(std::move(fake_dns_result),
/*tcp_connect_code=*/std::nullopt,
/*tls_upgrade_code=*/std::nullopt);
fake_network_context()->set_disconnect_during_tcp_connection_attempt(true);
CreateAndExecuteTlsProber(kFakeTlsHostPortPair, /*negotiate_tls=*/true,
net::ERR_FAILED,
ProbeExitEnum::kMojoDisconnectFailure);
}
TEST_F(TlsProberWithFakeNetworkContextTest,
MojoDisconnectedDuringTlsUpgradeAttempt) {
auto fake_dns_result = std::make_unique<FakeNetworkContext::DnsResult>(
net::OK, net::ResolveErrorInfo(net::OK), net::AddressList(kFakeIPAddress),
/*endpoint_results_with_metadata=*/std::nullopt);
net::Error tcp_connect_code = net::OK;
// TLS upgrade attempt will fail due to disconnection. |tls_upgrade_code|
// is only populated to correctly initialize the FakeNetworkContext instance.
net::Error tls_upgrade_code = net::OK;
InitializeProberNetworkContext(std::move(fake_dns_result), tcp_connect_code,
tls_upgrade_code);
fake_network_context()->set_disconnect_during_tls_upgrade_attempt(true);
CreateAndExecuteTlsProber(kFakeTlsHostPortPair, /*negotiate_tls=*/true,
net::ERR_FAILED,
ProbeExitEnum::kMojoDisconnectFailure);
}
TEST_F(TlsProberWithFakeNetworkContextTest, SuccessfulTcpConnectOnly) {
auto fake_dns_result = std::make_unique<FakeNetworkContext::DnsResult>(
net::OK, net::ResolveErrorInfo(net::OK), net::AddressList(kFakeIPAddress),
/*endpoint_results_with_metadata=*/std::nullopt);
net::Error tcp_connect_code = net::OK;
InitializeProberNetworkContext(std::move(fake_dns_result), tcp_connect_code,
/*tls_upgrade_code=*/std::nullopt);
CreateAndExecuteTlsProber(kFakeTlsHostPortPair, /*negotiate_tls=*/false,
net::OK, ProbeExitEnum::kSuccess);
}
class TlsProberWithRealNetworkContextTest : public ::testing::Test {
public:
TlsProberWithRealNetworkContextTest()
: task_environment_(content::BrowserTaskEnvironment::IO_MAINLOOP) {}
TlsProberWithRealNetworkContextTest(
const TlsProberWithRealNetworkContextTest&) = delete;
TlsProberWithRealNetworkContextTest& operator=(
const TlsProberWithRealNetworkContextTest&) = delete;
void SetUp() override {
service_ = network::NetworkService::CreateForTesting();
service_->Bind(network_service_.BindNewPipeAndPassReceiver());
auto context_params = network::mojom::NetworkContextParams::New();
context_params->cert_verifier_params = content::GetCertVerifierParams(
cert_verifier::mojom::CertVerifierCreationParams::New());
network_service_->CreateNetworkContext(
network_context_.BindNewPipeAndPassReceiver(),
std::move(context_params));
test_server_ = std::make_unique<net::EmbeddedTestServer>(
net::EmbeddedTestServer::TYPE_HTTPS);
net::SSLServerConfig ssl_config;
ssl_config.client_cert_type =
net::SSLServerConfig::ClientCertType::NO_CLIENT_CERT;
test_server_->SetSSLConfig(net::EmbeddedTestServer::CERT_OK, ssl_config);
test_server_->RegisterRequestHandler(base::BindRepeating(
&TlsProberWithRealNetworkContextTest::ReturnResponse));
ASSERT_TRUE((test_server_handle_ = test_server_->StartAndReturnHandle()));
}
void CreateAndExecuteTlsProber(net::HostPortPair host_port_pair,
bool negotiate_tls,
int expected_result,
ProbeExitEnum expected_exit_enum) {
base::test::TestFuture<int, ProbeExitEnum> future;
tls_prober_ = std::make_unique<TlsProber>(
base::BindLambdaForTesting([&]() -> network::mojom::NetworkContext* {
return network_context_.get();
}),
host_port_pair, negotiate_tls, future.GetCallback());
auto [probe_result, probe_exit_enum] = future.Take();
ASSERT_EQ(probe_result, expected_result);
ASSERT_EQ(probe_exit_enum, expected_exit_enum);
}
static std::unique_ptr<net::test_server::HttpResponse> ReturnResponse(
const net::test_server::HttpRequest& request) {
auto response = std::make_unique<net::test_server::BasicHttpResponse>();
response->set_code(net::HTTP_OK);
response->set_content("");
response->set_content_type("text/plain");
return response;
}
// Returns the net::HostPortPair containing hostname (127.0.0.1) and a random
// port used by the test server.
const net::HostPortPair host_port_pair() const {
return test_server_->host_port_pair();
}
private:
content::BrowserTaskEnvironment task_environment_;
std::unique_ptr<network::NetworkService> service_;
mojo::Remote<network::mojom::NetworkService> network_service_;
mojo::Remote<network::mojom::NetworkContext> network_context_;
std::unique_ptr<net::EmbeddedTestServer> test_server_;
net::test_server::EmbeddedTestServerHandle test_server_handle_;
std::unique_ptr<TlsProber> tls_prober_;
};
TEST_F(TlsProberWithRealNetworkContextTest,
TestSuccessfulProbeUsingRealNetworkContext) {
CreateAndExecuteTlsProber(host_port_pair(), /*negotiate_tls=*/true, net::OK,
ProbeExitEnum::kSuccess);
}
} // namespace ash::network_diagnostics
|
