device_cloud_policy_manager_chromeos_unittest.cc revision 2385ea399aae016c0806a4f9ef3c9cfe3d2a39df 
1// Copyright (c) 2012 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#include "chrome/browser/chromeos/policy/device_cloud_policy_manager_chromeos.h"
6
7#include "base/basictypes.h"
8#include "base/compiler_specific.h"
9#include "base/memory/scoped_ptr.h"
10#include "base/message_loop/message_loop.h"
11#include "base/prefs/pref_registry_simple.h"
12#include "base/prefs/testing_pref_service.h"
13#include "base/run_loop.h"
14#include "chrome/browser/chromeos/policy/device_cloud_policy_store_chromeos.h"
15#include "chrome/browser/chromeos/policy/enterprise_install_attributes.h"
16#include "chrome/browser/chromeos/settings/cros_settings.h"
17#include "chrome/browser/chromeos/settings/device_oauth2_token_service.h"
18#include "chrome/browser/chromeos/settings/device_oauth2_token_service_factory.h"
19#include "chrome/browser/chromeos/settings/device_settings_service.h"
20#include "chrome/browser/chromeos/settings/device_settings_test_helper.h"
21#include "chrome/browser/policy/cloud/cloud_policy_client.h"
22#include "chrome/browser/policy/cloud/mock_device_management_service.h"
23#include "chrome/browser/policy/external_data_fetcher.h"
24#include "chrome/browser/policy/proto/chromeos/chrome_device_policy.pb.h"
25#include "chrome/browser/policy/proto/cloud/device_management_backend.pb.h"
26#include "chrome/browser/prefs/browser_prefs.h"
27#include "chrome/test/base/testing_browser_process.h"
28#include "chromeos/cryptohome/cryptohome_library.h"
29#include "chromeos/cryptohome/mock_cryptohome_library.h"
30#include "chromeos/dbus/cryptohome_client.h"
31#include "chromeos/dbus/dbus_client_implementation_type.h"
32#include "google_apis/gaia/gaia_oauth_client.h"
33#include "net/url_request/test_url_fetcher_factory.h"
34#include "net/url_request/url_request_test_util.h"
35#include "policy/policy_constants.h"
36#include "testing/gmock/include/gmock/gmock.h"
37#include "testing/gtest/include/gtest/gtest.h"
38
39using testing::AnyNumber;
40using testing::AtMost;
41using testing::DoAll;
42using testing::Mock;
43using testing::SaveArg;
44using testing::_;
45
46namespace em = enterprise_management;
47
48namespace policy {
49namespace {
50
51void CopyLockResult(base::RunLoop* loop,
52                    EnterpriseInstallAttributes::LockResult* out,
53                    EnterpriseInstallAttributes::LockResult result) {
54  *out = result;
55  loop->Quit();
56}
57
58class DeviceCloudPolicyManagerChromeOSTest
59    : public chromeos::DeviceSettingsTestBase {
60 protected:
61  DeviceCloudPolicyManagerChromeOSTest()
62      : cryptohome_library_(chromeos::CryptohomeLibrary::GetTestImpl()),
63        stub_cryptohome_client_(chromeos::CryptohomeClient::Create(
64            chromeos::STUB_DBUS_CLIENT_IMPLEMENTATION, NULL)),
65        install_attributes_(cryptohome_library_.get(),
66                            stub_cryptohome_client_.get()),
67        store_(new DeviceCloudPolicyStoreChromeOS(&device_settings_service_,
68                                                  &install_attributes_)),
69        manager_(make_scoped_ptr(store_), &install_attributes_) {}
70
71  virtual void SetUp() OVERRIDE {
72    DeviceSettingsTestBase::SetUp();
73    chrome::RegisterLocalState(local_state_.registry());
74    manager_.Init();
75
76    // DeviceOAuth2TokenService uses the system request context to fetch
77    // OAuth tokens, then writes the token to local state, encrypting it
78    // first with methods in CryptohomeLibrary.
79    request_context_getter_ = new net::TestURLRequestContextGetter(
80        loop_.message_loop_proxy());
81    TestingBrowserProcess::GetGlobal()->SetSystemRequestContext(
82        request_context_getter_.get());
83    TestingBrowserProcess::GetGlobal()->SetLocalState(&local_state_);
84    chromeos::DeviceOAuth2TokenServiceFactory::Initialize();
85    chromeos::CryptohomeLibrary::SetForTest(cryptohome_library_.get());
86    url_fetcher_response_code_ = 200;
87    url_fetcher_response_string_ = "{\"access_token\":\"accessToken4Test\","
88                                   "\"expires_in\":1234,"
89                                   "\"refresh_token\":\"refreshToken4Test\"}";
90  }
91
92  virtual void TearDown() OVERRIDE {
93    manager_.Shutdown();
94    DeviceSettingsTestBase::TearDown();
95
96    chromeos::DeviceOAuth2TokenServiceFactory::Shutdown();
97    chromeos::CryptohomeLibrary::SetForTest(NULL);
98    TestingBrowserProcess::GetGlobal()->SetLocalState(NULL);
99  }
100
101  scoped_ptr<chromeos::CryptohomeLibrary> cryptohome_library_;
102  scoped_ptr<chromeos::CryptohomeClient> stub_cryptohome_client_;
103  EnterpriseInstallAttributes install_attributes_;
104
105  scoped_refptr<net::URLRequestContextGetter> request_context_getter_;
106  net::TestURLFetcherFactory url_fetcher_factory_;
107  int url_fetcher_response_code_;
108  string url_fetcher_response_string_;
109  TestingPrefServiceSimple local_state_;
110  MockDeviceManagementService device_management_service_;
111  chromeos::ScopedTestDeviceSettingsService test_device_settings_service_;
112  chromeos::ScopedTestCrosSettings test_cros_settings_;
113
114  DeviceCloudPolicyStoreChromeOS* store_;
115  DeviceCloudPolicyManagerChromeOS manager_;
116
117 private:
118  DISALLOW_COPY_AND_ASSIGN(DeviceCloudPolicyManagerChromeOSTest);
119};
120
121TEST_F(DeviceCloudPolicyManagerChromeOSTest, FreshDevice) {
122  owner_key_util_->Clear();
123  FlushDeviceSettings();
124  EXPECT_TRUE(manager_.IsInitializationComplete(POLICY_DOMAIN_CHROME));
125
126  manager_.Connect(&local_state_,
127                   &device_management_service_,
128                   scoped_ptr<CloudPolicyClient::StatusProvider>());
129
130  PolicyBundle bundle;
131  EXPECT_TRUE(manager_.policies().Equals(bundle));
132}
133
134TEST_F(DeviceCloudPolicyManagerChromeOSTest, EnrolledDevice) {
135  base::RunLoop loop;
136  EnterpriseInstallAttributes::LockResult result;
137  install_attributes_.LockDevice(PolicyBuilder::kFakeUsername,
138                                 DEVICE_MODE_ENTERPRISE,
139                                 PolicyBuilder::kFakeDeviceId,
140                                 base::Bind(&CopyLockResult, &loop, &result));
141  loop.Run();
142  ASSERT_EQ(EnterpriseInstallAttributes::LOCK_SUCCESS, result);
143
144  FlushDeviceSettings();
145  EXPECT_EQ(CloudPolicyStore::STATUS_OK, store_->status());
146  EXPECT_TRUE(manager_.IsInitializationComplete(POLICY_DOMAIN_CHROME));
147
148  PolicyBundle bundle;
149  bundle.Get(PolicyNamespace(POLICY_DOMAIN_CHROME, std::string()))
150      .Set(key::kDeviceMetricsReportingEnabled,
151           POLICY_LEVEL_MANDATORY,
152           POLICY_SCOPE_MACHINE,
153           Value::CreateBooleanValue(false),
154           NULL);
155  EXPECT_TRUE(manager_.policies().Equals(bundle));
156
157  manager_.Connect(&local_state_,
158                   &device_management_service_,
159                   scoped_ptr<CloudPolicyClient::StatusProvider>());
160  EXPECT_TRUE(manager_.policies().Equals(bundle));
161
162  manager_.Shutdown();
163  EXPECT_TRUE(manager_.policies().Equals(bundle));
164
165  EXPECT_EQ(manager_.GetRobotAccountId(),
166            PolicyBuilder::kFakeServiceAccountIdentity);
167}
168
169TEST_F(DeviceCloudPolicyManagerChromeOSTest, ConsumerDevice) {
170  FlushDeviceSettings();
171  EXPECT_EQ(CloudPolicyStore::STATUS_BAD_STATE, store_->status());
172  EXPECT_TRUE(manager_.IsInitializationComplete(POLICY_DOMAIN_CHROME));
173
174  PolicyBundle bundle;
175  EXPECT_TRUE(manager_.policies().Equals(bundle));
176
177  manager_.Connect(&local_state_,
178                   &device_management_service_,
179                   scoped_ptr<CloudPolicyClient::StatusProvider>());
180  EXPECT_TRUE(manager_.policies().Equals(bundle));
181
182  manager_.Shutdown();
183  EXPECT_TRUE(manager_.policies().Equals(bundle));
184}
185
186class DeviceCloudPolicyManagerChromeOSEnrollmentTest
187    : public DeviceCloudPolicyManagerChromeOSTest {
188 public:
189  void Done(EnrollmentStatus status) {
190    status_ = status;
191    done_ = true;
192  }
193
194 protected:
195  DeviceCloudPolicyManagerChromeOSEnrollmentTest()
196      : is_auto_enrollment_(false),
197        register_status_(DM_STATUS_SUCCESS),
198        policy_fetch_status_(DM_STATUS_SUCCESS),
199        robot_auth_fetch_status_(DM_STATUS_SUCCESS),
200        store_result_(true),
201        status_(EnrollmentStatus::ForStatus(EnrollmentStatus::STATUS_SUCCESS)),
202        done_(false) {}
203
204  virtual void SetUp() OVERRIDE {
205    DeviceCloudPolicyManagerChromeOSTest::SetUp();
206
207    // Set up test data.
208    device_policy_.SetDefaultNewSigningKey();
209    device_policy_.policy_data().set_timestamp(
210        (base::Time::NowFromSystemTime() -
211         base::Time::UnixEpoch()).InMilliseconds());
212    device_policy_.Build();
213
214    register_response_.mutable_register_response()->set_device_management_token(
215        PolicyBuilder::kFakeToken);
216    policy_fetch_response_.mutable_policy_response()->add_response()->CopyFrom(
217        device_policy_.policy());
218    robot_auth_fetch_response_.mutable_service_api_access_response()
219        ->set_auth_code("auth_code_for_test");
220    loaded_blob_ = device_policy_.GetBlob();
221
222    // Initialize the manager.
223    FlushDeviceSettings();
224    EXPECT_EQ(CloudPolicyStore::STATUS_BAD_STATE, store_->status());
225    EXPECT_TRUE(manager_.IsInitializationComplete(POLICY_DOMAIN_CHROME));
226
227    PolicyBundle bundle;
228    EXPECT_TRUE(manager_.policies().Equals(bundle));
229
230    manager_.Connect(&local_state_,
231                     &device_management_service_,
232                     scoped_ptr<CloudPolicyClient::StatusProvider>());
233  }
234
235  void ExpectFailedEnrollment(EnrollmentStatus::Status status) {
236    EXPECT_EQ(status, status_.status());
237    EXPECT_FALSE(store_->is_managed());
238    PolicyBundle empty_bundle;
239    EXPECT_TRUE(manager_.policies().Equals(empty_bundle));
240  }
241
242  void ExpectSuccessfulEnrollment() {
243    EXPECT_EQ(EnrollmentStatus::STATUS_SUCCESS, status_.status());
244    EXPECT_EQ(DEVICE_MODE_ENTERPRISE, install_attributes_.GetMode());
245    EXPECT_TRUE(store_->has_policy());
246    EXPECT_TRUE(store_->is_managed());
247    ASSERT_TRUE(manager_.core()->client());
248    EXPECT_TRUE(manager_.core()->client()->is_registered());
249
250    PolicyBundle bundle;
251    bundle.Get(PolicyNamespace(POLICY_DOMAIN_CHROME, std::string()))
252        .Set(key::kDeviceMetricsReportingEnabled,
253             POLICY_LEVEL_MANDATORY,
254             POLICY_SCOPE_MACHINE,
255             Value::CreateBooleanValue(false),
256             NULL);
257    EXPECT_TRUE(manager_.policies().Equals(bundle));
258  }
259
260  void RunTest() {
261    // Trigger enrollment.
262    MockDeviceManagementJob* register_job = NULL;
263    EXPECT_CALL(device_management_service_,
264                CreateJob(DeviceManagementRequestJob::TYPE_REGISTRATION))
265        .Times(AtMost(1))
266        .WillOnce(device_management_service_.CreateAsyncJob(&register_job));
267    EXPECT_CALL(device_management_service_, StartJob(_, _, _, _, _, _, _))
268        .Times(AtMost(1))
269        .WillOnce(DoAll(SaveArg<5>(&client_id_),
270                        SaveArg<6>(&register_request_)));
271    DeviceCloudPolicyManagerChromeOS::AllowedDeviceModes modes;
272    modes[DEVICE_MODE_ENTERPRISE] = true;
273    manager_.StartEnrollment(
274        "auth token", is_auto_enrollment_, modes,
275        base::Bind(&DeviceCloudPolicyManagerChromeOSEnrollmentTest::Done,
276                   base::Unretained(this)));
277    Mock::VerifyAndClearExpectations(&device_management_service_);
278
279    if (done_)
280      return;
281
282    // Process registration.
283    ASSERT_TRUE(register_job);
284    MockDeviceManagementJob* policy_fetch_job = NULL;
285    EXPECT_CALL(device_management_service_,
286                CreateJob(DeviceManagementRequestJob::TYPE_POLICY_FETCH))
287        .Times(AtMost(1))
288        .WillOnce(device_management_service_.CreateAsyncJob(&policy_fetch_job));
289    EXPECT_CALL(device_management_service_, StartJob(_, _, _, _, _, _, _))
290        .Times(AtMost(1));
291    register_job->SendResponse(register_status_, register_response_);
292    Mock::VerifyAndClearExpectations(&device_management_service_);
293
294    if (done_)
295      return;
296
297    // Process policy fetch.
298    ASSERT_TRUE(policy_fetch_job);
299    policy_fetch_job->SendResponse(policy_fetch_status_,
300                                   policy_fetch_response_);
301
302    if (done_)
303      return;
304
305    // Process verification.
306    MockDeviceManagementJob* robot_auth_fetch_job = NULL;
307    EXPECT_CALL(device_management_service_,
308                CreateJob(DeviceManagementRequestJob::TYPE_API_AUTH_CODE_FETCH))
309        .Times(AtMost(1))
310        .WillOnce(device_management_service_.CreateAsyncJob(
311            &robot_auth_fetch_job));
312    EXPECT_CALL(device_management_service_, StartJob(_, _, _, _, _, _, _))
313        .Times(AtMost(1));
314    base::RunLoop().RunUntilIdle();
315    Mock::VerifyAndClearExpectations(&device_management_service_);
316
317    if (done_)
318      return;
319
320    // Process robot auth token fetch.
321    ASSERT_TRUE(robot_auth_fetch_job);
322    robot_auth_fetch_job->SendResponse(robot_auth_fetch_status_,
323                                       robot_auth_fetch_response_);
324    Mock::VerifyAndClearExpectations(&device_management_service_);
325
326    if (done_)
327      return;
328
329    // Process robot refresh token fetch if the auth code fetch succeeded.
330    // DeviceCloudPolicyManagerChromeOS holds an EnrollmentHandlerChromeOS which
331    // holds a GaiaOAuthClient that fetches the refresh token during enrollment.
332    // We return a successful OAuth response via a TestURLFetcher to trigger the
333    // happy path for these classes so that enrollment can continue.
334    if (robot_auth_fetch_status_ == DM_STATUS_SUCCESS) {
335      net::TestURLFetcher* url_fetcher = url_fetcher_factory_.GetFetcherByID(
336          gaia::GaiaOAuthClient::kUrlFetcherId);
337      ASSERT_TRUE(url_fetcher);
338      url_fetcher->SetMaxRetriesOn5xx(0);
339      url_fetcher->set_status(net::URLRequestStatus());
340      url_fetcher->set_response_code(url_fetcher_response_code_);
341      url_fetcher->SetResponseString(url_fetcher_response_string_);
342      url_fetcher->delegate()->OnURLFetchComplete(url_fetcher);
343    }
344    base::RunLoop().RunUntilIdle();
345
346    // Process policy store.
347    device_settings_test_helper_.set_store_result(store_result_);
348    device_settings_test_helper_.FlushStore();
349    EXPECT_EQ(device_policy_.GetBlob(),
350              device_settings_test_helper_.policy_blob());
351
352    if (done_)
353      return;
354
355    // Key installation, policy load and refresh token save.
356    device_settings_test_helper_.set_policy_blob(loaded_blob_);
357    owner_key_util_->SetPublicKeyFromPrivateKey(
358        *device_policy_.GetNewSigningKey());
359    ReloadDeviceSettings();
360
361    if (done_)
362      return;
363
364    // Process robot refresh token store.
365    EXPECT_EQ(
366        "refreshToken4Test",
367        chromeos::DeviceOAuth2TokenServiceFactory::Get()->GetRefreshToken());
368  }
369
370  bool is_auto_enrollment_;
371
372  DeviceManagementStatus register_status_;
373  em::DeviceManagementResponse register_response_;
374
375  DeviceManagementStatus policy_fetch_status_;
376  em::DeviceManagementResponse policy_fetch_response_;
377
378  DeviceManagementStatus robot_auth_fetch_status_;
379  em::DeviceManagementResponse robot_auth_fetch_response_;
380
381  bool store_result_;
382  std::string loaded_blob_;
383
384  em::DeviceManagementRequest register_request_;
385  std::string client_id_;
386  EnrollmentStatus status_;
387
388  bool done_;
389
390 private:
391  DISALLOW_COPY_AND_ASSIGN(DeviceCloudPolicyManagerChromeOSEnrollmentTest);
392};
393
394TEST_F(DeviceCloudPolicyManagerChromeOSEnrollmentTest, Success) {
395  RunTest();
396  ExpectSuccessfulEnrollment();
397}
398
399TEST_F(DeviceCloudPolicyManagerChromeOSEnrollmentTest, AutoEnrollment) {
400  is_auto_enrollment_ = true;
401  RunTest();
402  ExpectSuccessfulEnrollment();
403  EXPECT_TRUE(register_request_.register_request().auto_enrolled());
404}
405
406TEST_F(DeviceCloudPolicyManagerChromeOSEnrollmentTest, Reenrollment) {
407  base::RunLoop loop;
408  EnterpriseInstallAttributes::LockResult result;
409  install_attributes_.LockDevice(PolicyBuilder::kFakeUsername,
410                                 DEVICE_MODE_ENTERPRISE,
411                                 PolicyBuilder::kFakeDeviceId,
412                                 base::Bind(&CopyLockResult, &loop, &result));
413  loop.Run();
414  ASSERT_EQ(EnterpriseInstallAttributes::LOCK_SUCCESS, result);
415
416  RunTest();
417  ExpectSuccessfulEnrollment();
418  EXPECT_TRUE(register_request_.register_request().reregister());
419  EXPECT_EQ(PolicyBuilder::kFakeDeviceId, client_id_);
420}
421
422TEST_F(DeviceCloudPolicyManagerChromeOSEnrollmentTest, RegistrationFailed) {
423  register_status_ = DM_STATUS_REQUEST_FAILED;
424  RunTest();
425  ExpectFailedEnrollment(EnrollmentStatus::STATUS_REGISTRATION_FAILED);
426  EXPECT_EQ(DM_STATUS_REQUEST_FAILED, status_.client_status());
427}
428
429// Policy server implementations are not required to support robot auth
430// tokens, so the following 4 Robot* tests verify that enrollment succeeds
431// even if the robot auth token fetch fails.
432TEST_F(DeviceCloudPolicyManagerChromeOSEnrollmentTest,
433       RobotAuthCodeFetchFailed) {
434  robot_auth_fetch_status_ = DM_STATUS_REQUEST_FAILED;
435  RunTest();
436  ExpectSuccessfulEnrollment();
437}
438
439TEST_F(DeviceCloudPolicyManagerChromeOSEnrollmentTest,
440       RobotRefreshTokenFetchResponseCodeFailed) {
441  url_fetcher_response_code_ = 400;
442  RunTest();
443  ExpectSuccessfulEnrollment();
444}
445
446TEST_F(DeviceCloudPolicyManagerChromeOSEnrollmentTest,
447       RobotRefreshTokenFetchResponseStringFailed) {
448  url_fetcher_response_string_ = "invalid response json";
449  RunTest();
450  ExpectSuccessfulEnrollment();
451}
452
453TEST_F(DeviceCloudPolicyManagerChromeOSEnrollmentTest, RobotRefreshSaveFailed) {
454  // Without a DeviceOAuth2TokenService, the refresh token can't be saved.
455  chromeos::DeviceOAuth2TokenServiceFactory::Shutdown();
456  RunTest();
457  ExpectSuccessfulEnrollment();
458}
459
460TEST_F(DeviceCloudPolicyManagerChromeOSEnrollmentTest, PolicyFetchFailed) {
461  policy_fetch_status_ = DM_STATUS_REQUEST_FAILED;
462  RunTest();
463  ExpectFailedEnrollment(EnrollmentStatus::STATUS_POLICY_FETCH_FAILED);
464  EXPECT_EQ(DM_STATUS_REQUEST_FAILED, status_.client_status());
465}
466
467TEST_F(DeviceCloudPolicyManagerChromeOSEnrollmentTest, ValidationFailed) {
468  device_policy_.policy().set_policy_data_signature("bad");
469  policy_fetch_response_.clear_policy_response();
470  policy_fetch_response_.mutable_policy_response()->add_response()->CopyFrom(
471      device_policy_.policy());
472  RunTest();
473  ExpectFailedEnrollment(EnrollmentStatus::STATUS_VALIDATION_FAILED);
474  EXPECT_EQ(CloudPolicyValidatorBase::VALIDATION_BAD_INITIAL_SIGNATURE,
475            status_.validation_status());
476}
477
478TEST_F(DeviceCloudPolicyManagerChromeOSEnrollmentTest, StoreError) {
479  store_result_ = false;
480  RunTest();
481  ExpectFailedEnrollment(EnrollmentStatus::STATUS_STORE_ERROR);
482  EXPECT_EQ(CloudPolicyStore::STATUS_STORE_ERROR,
483            status_.store_status());
484}
485
486TEST_F(DeviceCloudPolicyManagerChromeOSEnrollmentTest, LoadError) {
487  loaded_blob_.clear();
488  RunTest();
489  ExpectFailedEnrollment(EnrollmentStatus::STATUS_STORE_ERROR);
490  EXPECT_EQ(CloudPolicyStore::STATUS_LOAD_ERROR,
491            status_.store_status());
492}
493
494}  // namespace
495}  // namespace policy
496