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
|
// Copyright 2025 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/json/json_writer.h"
#include "base/strings/stringprintf.h"
#include "base/test/metrics/histogram_tester.h"
#include "base/test/test_future.h"
#include "base/values.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/enterprise/client_certificates/certificate_provisioning_service_factory.h"
#include "chrome/browser/enterprise/test/management_context_mixin.h"
#include "chrome/browser/enterprise/test/test_constants.h"
#include "chrome/browser/policy/chrome_browser_policy_connector.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/ui/browser.h"
#include "chrome/test/base/chrome_test_utils.h"
#include "chrome/test/base/mixin_based_in_process_browser_test.h"
#include "chrome/test/base/platform_browser_test.h"
#include "chrome/test/base/ui_test_utils.h"
#include "components/enterprise/browser/controller/chrome_browser_cloud_management_controller.h"
#include "components/enterprise/client_certificates/core/certificate_provisioning_service.h"
#include "components/enterprise/client_certificates/core/client_identity.h"
#include "components/enterprise/client_certificates/core/features.h"
#include "components/enterprise/client_certificates/core/scoped_ssl_key_converter.h"
#include "components/policy/core/common/policy_switches.h"
#include "components/policy/policy_constants.h"
#include "components/policy/test_support/client_storage.h"
#include "components/policy/test_support/embedded_policy_test_server.h"
#include "content/public/test/browser_test.h"
#include "net/cert/x509_certificate.h"
#include "net/dns/mock_host_resolver.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace client_certificates {
using ManagementContextMixin = enterprise::test::ManagementContextMixin;
using ManagementContext = enterprise::test::ManagementContext;
namespace {
constexpr char kProfileIssuerCommonName[] = "Profile Root CA";
constexpr char kBrowserIssuerCommonName[] = "Browser Root CA";
struct CapturedRequest {
scoped_refptr<net::X509Certificate> client_certificate{};
};
} // namespace
class ClientCertificateBrowserTest : public MixinBasedInProcessBrowserTest,
public testing::WithParamInterface<bool> {
protected:
ClientCertificateBrowserTest() : scoped_key_converter_(true) {
management_mixin_ = ManagementContextMixin::Create(
&mixin_host_, this,
{
.is_cloud_user_managed = is_profile_scenario(),
.is_cloud_machine_managed = !is_profile_scenario(),
.affiliated = false,
});
}
void SetUp() override {
embedded_https_test_server().SetCertHostnames({});
net::EmbeddedTestServer::ServerCertificateConfig server_cert_config;
server_cert_config.dns_names = {"mtls.google.com"};
net::SSLServerConfig ssl_config;
ssl_config.client_cert_type =
net::SSLServerConfig::ClientCertType::REQUIRE_CLIENT_CERT;
embedded_https_test_server().SetSSLConfig(server_cert_config, ssl_config);
CHECK(embedded_https_test_server().InitializeAndListen());
MixinBasedInProcessBrowserTest::SetUp();
}
void SetUpInProcessBrowserTestFixture() override {
test_dm_server_ = std::make_unique<policy::EmbeddedPolicyTestServer>();
if (!is_profile_scenario()) {
test_dm_server_->client_storage()->RegisterClient(
enterprise::test::CreateBrowserClientInfo());
}
ASSERT_TRUE(test_dm_server_->Start());
policy::ChromeBrowserPolicyConnector::EnableCommandLineSupportForTesting();
base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
command_line->AppendSwitchASCII(policy::switches::kDeviceManagementUrl,
test_dm_server_->GetServiceURL().spec());
MixinBasedInProcessBrowserTest::SetUpInProcessBrowserTestFixture();
}
void SetUpOnMainThread() override {
host_resolver()->AddRule("*", "127.0.0.1");
embedded_https_test_server().RegisterRequestHandler(base::BindRepeating(
&ClientCertificateBrowserTest::HandleRequest, base::Unretained(this)));
embedded_https_test_server().StartAcceptingConnections();
MixinBasedInProcessBrowserTest::SetUpOnMainThread();
}
std::unique_ptr<net::test_server::HttpResponse> HandleRequest(
const net::test_server::HttpRequest& request) {
const auto& request_url = request.GetURL();
if (request_url.path_piece() != "/mtls") {
SCOPED_TRACE("Unexpected request.");
return nullptr;
}
auto response = std::make_unique<net::test_server::BasicHttpResponse>();
if (!request.ssl_info || !request.ssl_info->cert) {
response->set_code(net::HTTP_FORBIDDEN);
return response;
}
captured_request_.emplace();
captured_request_->client_certificate = request.ssl_info->cert;
return response;
}
void SetUserPolicy(bool enable_provisioning) {
base::flat_map<std::string, std::optional<base::Value>> policy_values;
policy_values.insert(
{policy::key::kProvisionManagedClientCertificateForUser,
base::Value(enable_provisioning ? 1 : 0)});
management_mixin()->SetCloudUserPolicies(std::move(policy_values));
}
void SetBrowserPolicy(bool enable_provisioning) {
base::flat_map<std::string, std::optional<base::Value>> policy_values;
policy_values.insert(
{policy::key::kProvisionManagedClientCertificateForBrowser,
base::Value(enable_provisioning ? 1 : 0)});
management_mixin()->SetCloudMachinePolicies(std::move(policy_values));
}
void SetCertificateAutoselectionPolicy() {
std::string policy_value_json;
ASSERT_TRUE(base::JSONWriter::Write(
base::Value::Dict()
.Set("pattern", embedded_https_test_server()
.GetURL("mtls.google.com", "/mtls")
.spec())
.Set("filter", base::Value::Dict().Set(
"ISSUER", base::Value::Dict().Set(
"CN", GetIssuerCommonName()))),
&policy_value_json));
base::flat_map<std::string, std::optional<base::Value>> policy_values;
policy_values.insert(
{policy::key::kAutoSelectCertificateForUrls,
base::Value(base::Value::List().Append(policy_value_json))});
if (is_profile_scenario()) {
management_mixin()->SetCloudUserPolicies(std::move(policy_values));
} else {
management_mixin()->SetCloudMachinePolicies(std::move(policy_values));
}
}
void EnablePolicyAndWaitForIdentity() {
CertificateProvisioningService* provisioning_service;
if (is_profile_scenario()) {
SetUserPolicy(true);
provisioning_service =
CertificateProvisioningServiceFactory::GetForProfile(
browser()->profile());
} else {
SetBrowserPolicy(true);
provisioning_service = g_browser_process->browser_policy_connector()
->chrome_browser_cloud_management_controller()
->GetCertificateProvisioningService();
}
ASSERT_TRUE(provisioning_service);
base::test::TestFuture<std::optional<ClientIdentity>> test_future;
provisioning_service->GetManagedIdentity(test_future.GetCallback());
VerifyIdentity(test_future.Get());
}
void VerifyIdentity(const std::optional<ClientIdentity>& managed_identity) {
ASSERT_TRUE(managed_identity);
ASSERT_TRUE(managed_identity->is_valid());
VerifyClientCert(managed_identity->certificate);
}
void VerifyClientCert(
const scoped_refptr<net::X509Certificate>& client_certificate) {
// Verify that the right cert was created based on the root CA's CN.
ASSERT_TRUE(client_certificate);
EXPECT_EQ(client_certificate->issuer().common_name, GetIssuerCommonName());
}
std::string_view GetIssuerCommonName() {
return is_profile_scenario() ? kProfileIssuerCommonName
: kBrowserIssuerCommonName;
}
ManagementContextMixin* management_mixin() { return management_mixin_.get(); }
base::HistogramTester& histogram_tester() { return histogram_tester_; }
bool is_profile_scenario() const { return GetParam(); }
std::optional<CapturedRequest> captured_request_;
private:
base::HistogramTester histogram_tester_;
std::unique_ptr<policy::EmbeddedPolicyTestServer> test_dm_server_;
client_certificates::ScopedSSLKeyConverter scoped_key_converter_;
std::unique_ptr<ManagementContextMixin> management_mixin_;
};
IN_PROC_BROWSER_TEST_P(ClientCertificateBrowserTest, CreateNewIdentity) {
EnablePolicyAndWaitForIdentity();
histogram_tester().ExpectUniqueSample(
base::StringPrintf(
"Enterprise.ClientCertificate.%s.Provisioning.CertificateCreation."
"Outcome",
is_profile_scenario() ? "Profile" : "Browser"),
true, 1);
}
IN_PROC_BROWSER_TEST_P(ClientCertificateBrowserTest, PRE_LoadExistingIdentity) {
EnablePolicyAndWaitForIdentity();
}
IN_PROC_BROWSER_TEST_P(ClientCertificateBrowserTest, LoadExistingIdentity) {
EnablePolicyAndWaitForIdentity();
histogram_tester().ExpectUniqueSample(
base::StringPrintf(
"Enterprise.ClientCertificate.%s.Provisioning.ExistingIdentity."
"Outcome",
is_profile_scenario() ? "Profile" : "Browser"),
true, 1);
}
IN_PROC_BROWSER_TEST_P(ClientCertificateBrowserTest, UseIdentityInMtls) {
// Enable the necessary policies and trigger a navigation.
SetCertificateAutoselectionPolicy();
if (is_profile_scenario()) {
SetUserPolicy(true);
} else {
SetBrowserPolicy(true);
}
ASSERT_TRUE(ui_test_utils::NavigateToURL(
browser(),
embedded_https_test_server().GetURL("mtls.google.com", "/mtls")));
ASSERT_TRUE(captured_request_);
VerifyClientCert(captured_request_->client_certificate);
}
INSTANTIATE_TEST_SUITE_P(
/* no prefix */,
ClientCertificateBrowserTest,
testing::Bool());
} // namespace client_certificates
|
