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
278
279
280
281
282
283
284
285
|
// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/ssl_errors/error_classification.h"
#include <memory>
#include "base/files/file_path.h"
#include "base/functional/bind.h"
#include "base/strings/string_split.h"
#include "base/test/metrics/histogram_tester.h"
#include "base/test/simple_test_clock.h"
#include "base/test/simple_test_tick_clock.h"
#include "base/test/task_environment.h"
#include "base/time/default_clock.h"
#include "base/time/default_tick_clock.h"
#include "components/network_time/network_time_test_utils.h"
#include "components/network_time/network_time_tracker.h"
#include "components/prefs/testing_pref_service.h"
#include "net/base/net_errors.h"
#include "net/cert/x509_certificate.h"
#include "net/test/cert_test_util.h"
#include "net/test/embedded_test_server/embedded_test_server.h"
#include "net/test/embedded_test_server/http_response.h"
#include "net/test/test_certificate_data.h"
#include "net/test/test_data_directory.h"
#include "services/network/public/cpp/weak_wrapper_shared_url_loader_factory.h"
#include "services/network/test/test_shared_url_loader_factory.h"
#include "services/network/test/test_url_loader_factory.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "url/gurl.h"
using testing::ElementsAre;
namespace {
const char kSslErrorCauseHistogram[] = "interstitial.ssl.cause.overridable";
} // namespace
class SSLErrorClassificationTest : public ::testing::Test {
public:
SSLErrorClassificationTest()
: field_trial_test_(new network_time::FieldTrialTest()) {}
network_time::FieldTrialTest* field_trial_test() {
return field_trial_test_.get();
}
protected:
network::TestURLLoaderFactory test_url_loader_factory_;
private:
std::unique_ptr<network_time::FieldTrialTest> field_trial_test_;
};
TEST_F(SSLErrorClassificationTest, TestNameMismatch) {
scoped_refptr<net::X509Certificate> example_cert = net::ImportCertFromFile(
net::GetTestCertsDirectory(), "subjectAltName_www_example_com.pem");
ASSERT_TRUE(example_cert);
std::vector<std::string> dns_names_example;
example_cert->GetSubjectAltName(&dns_names_example, nullptr);
ASSERT_THAT(dns_names_example, ElementsAre("www.example.com"));
std::vector<std::string> hostname_tokens_example =
ssl_errors::Tokenize(dns_names_example[0]);
ASSERT_THAT(hostname_tokens_example, ElementsAre("www", "example", "com"));
std::vector<std::vector<std::string>> dns_name_tokens_example;
dns_name_tokens_example.push_back(hostname_tokens_example);
ASSERT_EQ(1u, dns_name_tokens_example.size()); // [["www","example","com"]]
ASSERT_THAT(dns_name_tokens_example[0], ElementsAre("www", "example", "com"));
{
GURL origin("https://example.com");
std::string www_host;
std::vector<std::string> host_name_tokens = base::SplitString(
origin.host(), ".", base::KEEP_WHITESPACE, base::SPLIT_WANT_ALL);
EXPECT_TRUE(
ssl_errors::GetWWWSubDomainMatch(origin, dns_names_example, &www_host));
EXPECT_EQ("www.example.com", www_host);
EXPECT_FALSE(ssl_errors::NameUnderAnyNames(host_name_tokens,
dns_name_tokens_example));
EXPECT_FALSE(ssl_errors::AnyNamesUnderName(dns_name_tokens_example,
host_name_tokens));
EXPECT_FALSE(ssl_errors::IsSubDomainOutsideWildcard(origin, *example_cert));
EXPECT_FALSE(
ssl_errors::IsCertLikelyFromMultiTenantHosting(origin, *example_cert));
EXPECT_TRUE(ssl_errors::IsCertLikelyFromSameDomain(origin, *example_cert));
}
{
GURL origin("https://foo.blah.example.com");
std::string www_host;
std::vector<std::string> host_name_tokens = base::SplitString(
origin.host(), ".", base::KEEP_WHITESPACE, base::SPLIT_WANT_ALL);
EXPECT_FALSE(
ssl_errors::GetWWWSubDomainMatch(origin, dns_names_example, &www_host));
EXPECT_FALSE(ssl_errors::NameUnderAnyNames(host_name_tokens,
dns_name_tokens_example));
EXPECT_FALSE(ssl_errors::AnyNamesUnderName(dns_name_tokens_example,
host_name_tokens));
EXPECT_TRUE(ssl_errors::IsCertLikelyFromSameDomain(origin, *example_cert));
}
{
GURL origin("https://foo.www.example.com");
std::string www_host;
std::vector<std::string> host_name_tokens = base::SplitString(
origin.host(), ".", base::KEEP_WHITESPACE, base::SPLIT_WANT_ALL);
EXPECT_FALSE(
ssl_errors::GetWWWSubDomainMatch(origin, dns_names_example, &www_host));
EXPECT_TRUE(ssl_errors::NameUnderAnyNames(host_name_tokens,
dns_name_tokens_example));
EXPECT_FALSE(ssl_errors::AnyNamesUnderName(dns_name_tokens_example,
host_name_tokens));
EXPECT_TRUE(ssl_errors::IsCertLikelyFromSameDomain(origin, *example_cert));
}
{
GURL origin("https://www.example.com.foo");
std::string www_host;
std::vector<std::string> host_name_tokens = base::SplitString(
origin.host(), ".", base::KEEP_WHITESPACE, base::SPLIT_WANT_ALL);
EXPECT_FALSE(
ssl_errors::GetWWWSubDomainMatch(origin, dns_names_example, &www_host));
EXPECT_FALSE(ssl_errors::NameUnderAnyNames(host_name_tokens,
dns_name_tokens_example));
EXPECT_FALSE(ssl_errors::AnyNamesUnderName(dns_name_tokens_example,
host_name_tokens));
EXPECT_FALSE(ssl_errors::IsCertLikelyFromSameDomain(origin, *example_cert));
}
{
GURL origin("https://www.fooexample.com.");
std::string www_host;
std::vector<std::string> host_name_tokens = base::SplitString(
origin.host(), ".", base::KEEP_WHITESPACE, base::SPLIT_WANT_ALL);
EXPECT_FALSE(
ssl_errors::GetWWWSubDomainMatch(origin, dns_names_example, &www_host));
EXPECT_FALSE(ssl_errors::NameUnderAnyNames(host_name_tokens,
dns_name_tokens_example));
EXPECT_FALSE(ssl_errors::AnyNamesUnderName(dns_name_tokens_example,
host_name_tokens));
EXPECT_FALSE(ssl_errors::IsCertLikelyFromSameDomain(origin, *example_cert));
}
// Ensure that a certificate with no SubjectAltName does not fall back to
// the Subject CN when evaluating hostnames.
{
scoped_refptr<net::X509Certificate> google_cert =
net::X509Certificate::CreateFromBytes(google_der);
ASSERT_TRUE(google_cert);
GURL origin("https://google.com");
base::HistogramTester histograms;
ssl_errors::RecordUMAStatistics(true, base::Time::NowFromSystemTime(),
origin, net::ERR_CERT_COMMON_NAME_INVALID,
*google_cert);
// Verify that we recorded only NO_SUBJECT_ALT_NAME and no other causes.
histograms.ExpectUniqueSample(kSslErrorCauseHistogram,
ssl_errors::NO_SUBJECT_ALT_NAME, 1);
}
{
scoped_refptr<net::X509Certificate> webkit_cert =
net::X509Certificate::CreateFromBytes(webkit_der);
ASSERT_TRUE(webkit_cert);
std::vector<std::string> dns_names_webkit;
webkit_cert->GetSubjectAltName(&dns_names_webkit, nullptr);
ASSERT_THAT(dns_names_webkit, ElementsAre("*.webkit.org", "webkit.org"));
std::vector<std::string> hostname_tokens_webkit_0 =
ssl_errors::Tokenize(dns_names_webkit[0]);
ASSERT_THAT(hostname_tokens_webkit_0, ElementsAre("*", "webkit", "org"));
std::vector<std::string> hostname_tokens_webkit_1 =
ssl_errors::Tokenize(dns_names_webkit[1]);
ASSERT_THAT(hostname_tokens_webkit_1, ElementsAre("webkit", "org"));
std::vector<std::vector<std::string>> dns_name_tokens_webkit;
dns_name_tokens_webkit.push_back(hostname_tokens_webkit_0);
dns_name_tokens_webkit.push_back(hostname_tokens_webkit_1);
ASSERT_EQ(2u, dns_name_tokens_webkit.size());
GURL origin("https://a.b.webkit.org");
std::string www_host;
std::vector<std::string> host_name_tokens = base::SplitString(
origin.host(), ".", base::KEEP_WHITESPACE, base::SPLIT_WANT_ALL);
EXPECT_FALSE(
ssl_errors::GetWWWSubDomainMatch(origin, dns_names_webkit, &www_host));
EXPECT_FALSE(ssl_errors::NameUnderAnyNames(host_name_tokens,
dns_name_tokens_webkit));
EXPECT_FALSE(ssl_errors::AnyNamesUnderName(dns_name_tokens_webkit,
host_name_tokens));
EXPECT_TRUE(ssl_errors::IsSubDomainOutsideWildcard(origin, *webkit_cert));
EXPECT_FALSE(
ssl_errors::IsCertLikelyFromMultiTenantHosting(origin, *webkit_cert));
EXPECT_TRUE(ssl_errors::IsCertLikelyFromSameDomain(origin, *webkit_cert));
}
}
TEST_F(SSLErrorClassificationTest, TestHostNameHasKnownTLD) {
EXPECT_TRUE(ssl_errors::HostNameHasKnownTLD("www.google.com"));
EXPECT_TRUE(ssl_errors::HostNameHasKnownTLD("b.appspot.com"));
EXPECT_FALSE(ssl_errors::HostNameHasKnownTLD("a.private"));
}
TEST_F(SSLErrorClassificationTest, TestPrivateURL) {
EXPECT_FALSE(ssl_errors::IsHostnameNonUniqueOrDotless("www.foogoogle.com."));
EXPECT_TRUE(ssl_errors::IsHostnameNonUniqueOrDotless("go"));
EXPECT_TRUE(ssl_errors::IsHostnameNonUniqueOrDotless("172.17.108.108"));
EXPECT_TRUE(ssl_errors::IsHostnameNonUniqueOrDotless("foo.blah"));
}
TEST_F(SSLErrorClassificationTest, GetClockState) {
// This test aims to obtain all possible return values of
// |GetClockState|.
field_trial_test()->SetFeatureParams(
true, 0.0, network_time::NetworkTimeTracker::FETCHES_ON_DEMAND_ONLY);
TestingPrefServiceSimple pref_service;
network_time::NetworkTimeTracker::RegisterPrefs(pref_service.registry());
network_time::NetworkTimeTracker network_time_tracker(
std::make_unique<base::DefaultClock>(),
std::make_unique<base::DefaultTickClock>(), &pref_service,
base::MakeRefCounted<network::WeakWrapperSharedURLLoaderFactory>(
&test_url_loader_factory_),
std::nullopt);
ssl_errors::SetBuildTimeForTesting(base::Time::Now());
EXPECT_EQ(
ssl_errors::ClockState::CLOCK_STATE_UNKNOWN,
ssl_errors::GetClockState(base::Time::Now(), &network_time_tracker));
ssl_errors::SetBuildTimeForTesting(base::Time::Now() - base::Days(367));
EXPECT_EQ(
ssl_errors::ClockState::CLOCK_STATE_FUTURE,
ssl_errors::GetClockState(base::Time::Now(), &network_time_tracker));
ssl_errors::SetBuildTimeForTesting(base::Time::Now() + base::Days(3));
EXPECT_EQ(
ssl_errors::ClockState::CLOCK_STATE_PAST,
ssl_errors::GetClockState(base::Time::Now(), &network_time_tracker));
// Intentionally leave the build time alone. It should be ignored
// in favor of network time.
network_time_tracker.UpdateNetworkTime(
base::Time::Now() + base::Hours(1),
base::Seconds(1), // resolution
base::Milliseconds(250), // latency
base::TimeTicks::Now()); // posting time
EXPECT_EQ(
ssl_errors::ClockState::CLOCK_STATE_PAST,
ssl_errors::GetClockState(base::Time::Now(), &network_time_tracker));
network_time_tracker.UpdateNetworkTime(
base::Time::Now() - base::Hours(1),
base::Seconds(1), // resolution
base::Milliseconds(250), // latency
base::TimeTicks::Now()); // posting time
EXPECT_EQ(
ssl_errors::ClockState::CLOCK_STATE_FUTURE,
ssl_errors::GetClockState(base::Time::Now(), &network_time_tracker));
network_time_tracker.UpdateNetworkTime(
base::Time::Now(),
base::Seconds(1), // resolution
base::Milliseconds(250), // latency
base::TimeTicks::Now()); // posting time
EXPECT_EQ(
ssl_errors::ClockState::CLOCK_STATE_OK,
ssl_errors::GetClockState(base::Time::Now(), &network_time_tracker));
// Now clear the network time. The build time should reassert
// itself.
network_time_tracker.ClearNetworkTimeForTesting();
ssl_errors::SetBuildTimeForTesting(base::Time::Now() + base::Days(3));
EXPECT_EQ(
ssl_errors::ClockState::CLOCK_STATE_PAST,
ssl_errors::GetClockState(base::Time::Now(), &network_time_tracker));
// Now set the build time to something reasonable. We should be
// back to the know-nothing state.
ssl_errors::SetBuildTimeForTesting(base::Time::Now());
EXPECT_EQ(
ssl_errors::ClockState::CLOCK_STATE_UNKNOWN,
ssl_errors::GetClockState(base::Time::Now(), &network_time_tracker));
}
|
