src/chrome/browser/ui/webui/policy_ui.cc

   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/ui/webui/policy_ui.h"
   6
   7 #include "base/bind.h"
   8 #include "base/bind_helpers.h"
   9 #include "base/callback.h"
  10 #include "base/compiler_specific.h"
  11 #include "base/json/json_writer.h"
  12 #include "base/logging.h"
  13 #include "base/memory/scoped_ptr.h"
  14 #include "base/memory/weak_ptr.h"
  15 #include "base/strings/string16.h"
  16 #include "base/time/time.h"
  17 #include "base/values.h"
  18 #include "chrome/browser/browser_process.h"
  19 #include "chrome/browser/chrome_notification_types.h"
  20 #include "chrome/browser/policy/profile_policy_connector.h"
  21 #include "chrome/browser/policy/profile_policy_connector_factory.h"
  22 #include "chrome/browser/policy/schema_registry_service.h"
  23 #include "chrome/browser/policy/schema_registry_service_factory.h"
  24 #include "chrome/browser/profiles/profile.h"
  25 #include "chrome/common/url_constants.h"
  26 #include "components/policy/core/browser/browser_policy_connector.h"
  27 #include "components/policy/core/browser/cloud/message_util.h"
  28 #include "components/policy/core/browser/configuration_policy_handler_list.h"
  29 #include "components/policy/core/browser/policy_error_map.h"
  30 #include "components/policy/core/common/cloud/cloud_policy_client.h"
  31 #include "components/policy/core/common/cloud/cloud_policy_constants.h"
  32 #include "components/policy/core/common/cloud/cloud_policy_core.h"
  33 #include "components/policy/core/common/cloud/cloud_policy_refresh_scheduler.h"
  34 #include "components/policy/core/common/cloud/cloud_policy_store.h"
  35 #include "components/policy/core/common/cloud/cloud_policy_validator.h"
  36 #include "components/policy/core/common/policy_map.h"
  37 #include "components/policy/core/common/policy_namespace.h"
  38 #include "components/policy/core/common/policy_service.h"
  39 #include "components/policy/core/common/policy_types.h"
  40 #include "components/policy/core/common/schema.h"
  41 #include "components/policy/core/common/schema_map.h"
  42 #include "components/policy/core/common/schema_registry.h"
  43 #include "content/public/browser/notification_observer.h"
  44 #include "content/public/browser/notification_registrar.h"
  45 #include "content/public/browser/notification_service.h"
  46 #include "content/public/browser/web_ui.h"
  47 #include "content/public/browser/web_ui_data_source.h"
  48 #include "content/public/browser/web_ui_message_handler.h"
  49 #include "google_apis/gaia/gaia_auth_util.h"
  50 #include "grit/browser_resources.h"
  51 #include "grit/component_strings.h"
  52 #include "policy/policy_constants.h"
  53 #include "policy/proto/device_management_backend.pb.h"
  54 #include "ui/base/l10n/l10n_util.h"
  55 #include "ui/base/l10n/time_format.h"
  56
  57 #if defined(OS_CHROMEOS)
  58 #include "chrome/browser/chromeos/login/user_manager.h"
  59 #include "chrome/browser/chromeos/policy/browser_policy_connector_chromeos.h"
  60 #include "chrome/browser/chromeos/policy/device_cloud_policy_manager_chromeos.h"
  61 #include "chrome/browser/chromeos/policy/device_local_account_policy_service.h"
  62 #include "chrome/browser/chromeos/policy/user_cloud_policy_manager_chromeos.h"
  63 #include "chrome/browser/chromeos/policy/user_cloud_policy_manager_factory_chromeos.h"
  64 #else
  65 #include "chrome/browser/policy/cloud/user_cloud_policy_manager_factory.h"
  66 #include "components/policy/core/common/cloud/user_cloud_policy_manager.h"
  67 #include "content/public/browser/web_contents.h"
  68 #endif
  69
  70 #if !defined(OS_ANDROID) && !defined(OS_IOS)
  71 #include "chrome/browser/extensions/extension_service.h"
  72 #include "extensions/browser/extension_system.h"
  73 #include "extensions/common/extension.h"
  74 #include "extensions/common/extension_set.h"
  75 #include "extensions/common/manifest.h"
  76 #include "extensions/common/manifest_constants.h"
  77 #endif
  78
  79 namespace em = enterprise_management;
  80
  81 namespace {
  82
  83 content::WebUIDataSource* CreatePolicyUIHTMLSource() {
  84   content::WebUIDataSource* source =
  85       content::WebUIDataSource::Create(chrome::kChromeUIPolicyHost);
  86
  87   // Localized strings.
  88   source->AddLocalizedString("title", IDS_POLICY_TITLE);
  89   source->AddLocalizedString("filterPlaceholder",
  90                              IDS_POLICY_FILTER_PLACEHOLDER);
  91   source->AddLocalizedString("reloadPolicies", IDS_POLICY_RELOAD_POLICIES);
  92   source->AddLocalizedString("status", IDS_POLICY_STATUS);
  93   source->AddLocalizedString("statusDevice", IDS_POLICY_STATUS_DEVICE);
  94   source->AddLocalizedString("statusUser", IDS_POLICY_STATUS_USER);
  95   source->AddLocalizedString("labelDomain", IDS_POLICY_LABEL_DOMAIN);
  96   source->AddLocalizedString("labelUsername", IDS_POLICY_LABEL_USERNAME);
  97   source->AddLocalizedString("labelClientId", IDS_POLICY_LABEL_CLIENT_ID);
  98   source->AddLocalizedString("labelTimeSinceLastRefresh",
  99                              IDS_POLICY_LABEL_TIME_SINCE_LAST_REFRESH);
 100   source->AddLocalizedString("labelRefreshInterval",
 101                              IDS_POLICY_LABEL_REFRESH_INTERVAL);
 102   source->AddLocalizedString("labelStatus", IDS_POLICY_LABEL_STATUS);
 103   source->AddLocalizedString("showUnset", IDS_POLICY_SHOW_UNSET);
 104   source->AddLocalizedString("noPoliciesSet", IDS_POLICY_NO_POLICIES_SET);
 105   source->AddLocalizedString("headerScope", IDS_POLICY_HEADER_SCOPE);
 106   source->AddLocalizedString("headerLevel", IDS_POLICY_HEADER_LEVEL);
 107   source->AddLocalizedString("headerName", IDS_POLICY_HEADER_NAME);
 108   source->AddLocalizedString("headerValue", IDS_POLICY_HEADER_VALUE);
 109   source->AddLocalizedString("headerStatus", IDS_POLICY_HEADER_STATUS);
 110   source->AddLocalizedString("showExpandedValue",
 111                              IDS_POLICY_SHOW_EXPANDED_VALUE);
 112   source->AddLocalizedString("hideExpandedValue",
 113                              IDS_POLICY_HIDE_EXPANDED_VALUE);
 114   source->AddLocalizedString("scopeUser", IDS_POLICY_SCOPE_USER);
 115   source->AddLocalizedString("scopeDevice", IDS_POLICY_SCOPE_DEVICE);
 116   source->AddLocalizedString("levelRecommended", IDS_POLICY_LEVEL_RECOMMENDED);
 117   source->AddLocalizedString("levelMandatory", IDS_POLICY_LEVEL_MANDATORY);
 118   source->AddLocalizedString("ok", IDS_POLICY_OK);
 119   source->AddLocalizedString("unset", IDS_POLICY_UNSET);
 120   source->AddLocalizedString("unknown", IDS_POLICY_UNKNOWN);
 121
 122   source->SetUseJsonJSFormatV2();
 123   source->SetJsonPath("strings.js");
 124
 125   // Add required resources.
 126   source->AddResourcePath("policy.css", IDR_POLICY_CSS);
 127   source->AddResourcePath("policy.js", IDR_POLICY_JS);
 128   source->AddResourcePath("uber_utils.js", IDR_UBER_UTILS_JS);
 129   source->SetDefaultResource(IDR_POLICY_HTML);
 130
 131   return source;
 132 }
 133
 134 // Formats the association state indicated by |data|. If |data| is NULL, the
 135 // state is considered to be UNMANAGED.
 136 base::string16 FormatAssociationState(const em::PolicyData* data) {
 137   if (data) {
 138     switch (data->state()) {
 139       case em::PolicyData::ACTIVE:
 140         return l10n_util::GetStringUTF16(IDS_POLICY_ASSOCIATION_STATE_ACTIVE);
 141       case em::PolicyData::UNMANAGED:
 142         return l10n_util::GetStringUTF16(
 143             IDS_POLICY_ASSOCIATION_STATE_UNMANAGED);
 144       case em::PolicyData::DEPROVISIONED:
 145         return l10n_util::GetStringUTF16(
 146             IDS_POLICY_ASSOCIATION_STATE_DEPROVISIONED);
 147     }
 148     NOTREACHED() << "Unknown state " << data->state();
 149   }
 150
 151   // Default to UNMANAGED for the case of missing policy or bad state enum.
 152   return l10n_util::GetStringUTF16(IDS_POLICY_ASSOCIATION_STATE_UNMANAGED);
 153 }
 154
 155 void GetStatusFromCore(const policy::CloudPolicyCore* core,
 156                        base::DictionaryValue* dict) {
 157   const policy::CloudPolicyStore* store = core->store();
 158   const policy::CloudPolicyClient* client = core->client();
 159   const policy::CloudPolicyRefreshScheduler* refresh_scheduler =
 160         core->refresh_scheduler();
 161
 162   // CloudPolicyStore errors take precedence to show in the status message.
 163   // Other errors (such as transient policy fetching problems) get displayed
 164   // only if CloudPolicyStore is in STATUS_OK.
 165   base::string16 status =
 166       policy::FormatStoreStatus(store->status(), store->validation_status());
 167   if (store->status() == policy::CloudPolicyStore::STATUS_OK) {
 168     if (client && client->status() != policy::DM_STATUS_SUCCESS)
 169       status = policy::FormatDeviceManagementStatus(client->status());
 170     else if (!store->is_managed())
 171       status = FormatAssociationState(store->policy());
 172   }
 173
 174   const em::PolicyData* policy = store->policy();
 175   std::string client_id = policy ? policy->device_id() : std::string();
 176   std::string username = policy ? policy->username() : std::string();
 177   base::TimeDelta refresh_interval =
 178       base::TimeDelta::FromMilliseconds(refresh_scheduler ?
 179           refresh_scheduler->refresh_delay() :
 180           policy::CloudPolicyRefreshScheduler::kDefaultRefreshDelayMs);
 181   base::Time last_refresh_time = refresh_scheduler ?
 182       refresh_scheduler->last_refresh() : base::Time();
 183
 184   bool no_error = store->status() == policy::CloudPolicyStore::STATUS_OK &&
 185                   client && client->status() == policy::DM_STATUS_SUCCESS;
 186   dict->SetBoolean("error", !no_error);
 187   dict->SetString("status", status);
 188   dict->SetString("clientId", client_id);
 189   dict->SetString("username", username);
 190   dict->SetString("refreshInterval",
 191                   ui::TimeFormat::Simple(ui::TimeFormat::FORMAT_DURATION,
 192                                          ui::TimeFormat::LENGTH_SHORT,
 193                                          refresh_interval));
 194   dict->SetString("timeSinceLastRefresh", last_refresh_time.is_null() ?
 195       l10n_util::GetStringUTF16(IDS_POLICY_NEVER_FETCHED) :
 196       ui::TimeFormat::Simple(ui::TimeFormat::FORMAT_ELAPSED,
 197                              ui::TimeFormat::LENGTH_SHORT,
 198                              base::Time::NowFromSystemTime() -
 199                                  last_refresh_time));
 200 }
 201
 202 void ExtractDomainFromUsername(base::DictionaryValue* dict) {
 203   std::string username;
 204   dict->GetString("username", &username);
 205   if (!username.empty())
 206     dict->SetString("domain", gaia::ExtractDomainName(username));
 207 }
 208
 209 // Utility function that returns a JSON serialization of the given |dict|.
 210 scoped_ptr<base::StringValue> DictionaryToJSONString(
 211     const base::DictionaryValue* dict) {
 212   std::string json_string;
 213   base::JSONWriter::WriteWithOptions(dict,
 214                                      base::JSONWriter::OPTIONS_PRETTY_PRINT,
 215                                      &json_string);
 216   return make_scoped_ptr(new base::StringValue(json_string));
 217 }
 218
 219 // Returns a copy of |value| with some values converted to a representation that
 220 // i18n_template.js will display in a nicer way.
 221 scoped_ptr<base::Value> CopyAndConvert(const base::Value* value) {
 222   const base::DictionaryValue* dict = NULL;
 223   if (value->GetAsDictionary(&dict))
 224     return DictionaryToJSONString(dict).PassAs<base::Value>();
 225
 226   scoped_ptr<base::Value> copy(value->DeepCopy());
 227   base::ListValue* list = NULL;
 228   if (copy->GetAsList(&list)) {
 229     for (size_t i = 0; i < list->GetSize(); ++i) {
 230       if (list->GetDictionary(i, &dict))
 231         list->Set(i, DictionaryToJSONString(dict).release());
 232     }
 233   }
 234
 235   return copy.Pass();
 236 }
 237
 238 }  // namespace
 239
 240 // An interface for querying the status of cloud policy.
 241 class CloudPolicyStatusProvider {
 242  public:
 243   CloudPolicyStatusProvider();
 244   virtual ~CloudPolicyStatusProvider();
 245
 246   // Sets a callback to invoke upon status changes.
 247   void SetStatusChangeCallback(const base::Closure& callback);
 248
 249   virtual void GetStatus(base::DictionaryValue* dict);
 250
 251  protected:
 252   void NotifyStatusChange();
 253
 254  private:
 255   base::Closure callback_;
 256
 257   DISALLOW_COPY_AND_ASSIGN(CloudPolicyStatusProvider);
 258 };
 259
 260 // Status provider implementation that pulls cloud policy status from a
 261 // CloudPolicyCore instance provided at construction time. Also listens for
 262 // changes on that CloudPolicyCore and reports them through the status change
 263 // callback.
 264 class CloudPolicyCoreStatusProvider
 265     : public CloudPolicyStatusProvider,
 266       public policy::CloudPolicyStore::Observer {
 267  public:
 268   explicit CloudPolicyCoreStatusProvider(policy::CloudPolicyCore* core);
 269   virtual ~CloudPolicyCoreStatusProvider();
 270
 271   // policy::CloudPolicyStore::Observer implementation.
 272   virtual void OnStoreLoaded(policy::CloudPolicyStore* store) OVERRIDE;
 273   virtual void OnStoreError(policy::CloudPolicyStore* store) OVERRIDE;
 274
 275  protected:
 276   // Policy status is read from the CloudPolicyClient, CloudPolicyStore and
 277   // CloudPolicyRefreshScheduler hosted by this |core_|.
 278   policy::CloudPolicyCore* core_;
 279
 280   DISALLOW_COPY_AND_ASSIGN(CloudPolicyCoreStatusProvider);
 281 };
 282
 283 // A cloud policy status provider for user policy.
 284 class UserPolicyStatusProvider : public CloudPolicyCoreStatusProvider {
 285  public:
 286   explicit UserPolicyStatusProvider(policy::CloudPolicyCore* core);
 287   virtual ~UserPolicyStatusProvider();
 288
 289   // CloudPolicyCoreStatusProvider implementation.
 290   virtual void GetStatus(base::DictionaryValue* dict) OVERRIDE;
 291
 292  private:
 293   DISALLOW_COPY_AND_ASSIGN(UserPolicyStatusProvider);
 294 };
 295
 296 #if defined(OS_CHROMEOS)
 297 // A cloud policy status provider for device policy.
 298 class DevicePolicyStatusProvider : public CloudPolicyCoreStatusProvider {
 299  public:
 300   explicit DevicePolicyStatusProvider(
 301       policy::BrowserPolicyConnectorChromeOS* connector);
 302   virtual ~DevicePolicyStatusProvider();
 303
 304   // CloudPolicyCoreStatusProvider implementation.
 305   virtual void GetStatus(base::DictionaryValue* dict) OVERRIDE;
 306
 307  private:
 308   std::string domain_;
 309
 310   DISALLOW_COPY_AND_ASSIGN(DevicePolicyStatusProvider);
 311 };
 312
 313 // A cloud policy status provider that reads policy status from the policy core
 314 // associated with the device-local account specified by |user_id| at
 315 // construction time. The indirection via user ID and
 316 // DeviceLocalAccountPolicyService is necessary because the device-local account
 317 // may go away any time behind the scenes, at which point the status message
 318 // text will indicate CloudPolicyStore::STATUS_BAD_STATE.
 319 class DeviceLocalAccountPolicyStatusProvider
 320     : public CloudPolicyStatusProvider,
 321       public policy::DeviceLocalAccountPolicyService::Observer {
 322  public:
 323   DeviceLocalAccountPolicyStatusProvider(
 324       const std::string& user_id,
 325       policy::DeviceLocalAccountPolicyService* service);
 326   virtual ~DeviceLocalAccountPolicyStatusProvider();
 327
 328   // CloudPolicyStatusProvider implementation.
 329   virtual void GetStatus(base::DictionaryValue* dict) OVERRIDE;
 330
 331   // policy::DeviceLocalAccountPolicyService::Observer implementation.
 332   virtual void OnPolicyUpdated(const std::string& user_id) OVERRIDE;
 333   virtual void OnDeviceLocalAccountsChanged() OVERRIDE;
 334
 335  private:
 336   const std::string user_id_;
 337   policy::DeviceLocalAccountPolicyService* service_;
 338
 339   DISALLOW_COPY_AND_ASSIGN(DeviceLocalAccountPolicyStatusProvider);
 340 };
 341 #endif
 342
 343 // The JavaScript message handler for the chrome://policy page.
 344 class PolicyUIHandler : public content::NotificationObserver,
 345                         public content::WebUIMessageHandler,
 346                         public policy::PolicyService::Observer {
 347  public:
 348   PolicyUIHandler();
 349   virtual ~PolicyUIHandler();
 350
 351   // content::NotificationObserver implementation.
 352   virtual void Observe(int type,
 353                        const content::NotificationSource& source,
 354                        const content::NotificationDetails& details) OVERRIDE;
 355
 356   // content::WebUIMessageHandler implementation.
 357   virtual void RegisterMessages() OVERRIDE;
 358
 359   // policy::PolicyService::Observer implementation.
 360   virtual void OnPolicyUpdated(const policy::PolicyNamespace& ns,
 361                                const policy::PolicyMap& previous,
 362                                const policy::PolicyMap& current) OVERRIDE;
 363
 364  private:
 365   // Send a dictionary containing the names of all known policies to the UI.
 366   void SendPolicyNames() const;
 367
 368   // Send information about the current policy values to the UI. For each policy
 369   // whose value has been set, a dictionary containing the value and additional
 370   // metadata is sent.
 371   void SendPolicyValues() const;
 372
 373   // Send the status of cloud policy to the UI. For each scope that has cloud
 374   // policy enabled (device and/or user), a dictionary containing status
 375   // information is sent.
 376   void SendStatus() const;
 377
 378   // Inserts a description of each policy in |policy_map| into |values|, using
 379   // the optional errors in |errors| to determine the status of each policy.
 380   void GetPolicyValues(const policy::PolicyMap& policy_map,
 381                        policy::PolicyErrorMap* errors,
 382                        base::DictionaryValue* values) const;
 383
 384   void GetChromePolicyValues(base::DictionaryValue* values) const;
 385
 386   void HandleInitialized(const base::ListValue* args);
 387   void HandleReloadPolicies(const base::ListValue* args);
 388
 389   void OnRefreshPoliciesDone() const;
 390
 391   policy::PolicyService* GetPolicyService() const;
 392
 393   bool initialized_;
 394   std::string device_domain_;
 395
 396   // Providers that supply status dictionaries for user and device policy,
 397   // respectively. These are created on initialization time as appropriate for
 398   // the platform (Chrome OS / desktop) and type of policy that is in effect.
 399   scoped_ptr<CloudPolicyStatusProvider> user_status_provider_;
 400   scoped_ptr<CloudPolicyStatusProvider> device_status_provider_;
 401
 402   content::NotificationRegistrar registrar_;
 403
 404   base::WeakPtrFactory<PolicyUIHandler> weak_factory_;
 405
 406   DISALLOW_COPY_AND_ASSIGN(PolicyUIHandler);
 407 };
 408
 409 CloudPolicyStatusProvider::CloudPolicyStatusProvider() {
 410 }
 411
 412 CloudPolicyStatusProvider::~CloudPolicyStatusProvider() {
 413 }
 414
 415 void CloudPolicyStatusProvider::SetStatusChangeCallback(
 416     const base::Closure& callback) {
 417   callback_ = callback;
 418 }
 419
 420 void CloudPolicyStatusProvider::GetStatus(base::DictionaryValue* dict) {
 421 }
 422
 423 void CloudPolicyStatusProvider::NotifyStatusChange() {
 424   if (!callback_.is_null())
 425     callback_.Run();
 426 }
 427
 428 CloudPolicyCoreStatusProvider::CloudPolicyCoreStatusProvider(
 429     policy::CloudPolicyCore* core) : core_(core) {
 430   core_->store()->AddObserver(this);
 431   // TODO(bartfab): Add an observer that watches for client errors. Observing
 432   // core_->client() directly is not safe as the client may be destroyed and
 433   // (re-)created anytime if the user signs in or out on desktop platforms.
 434 }
 435
 436 CloudPolicyCoreStatusProvider::~CloudPolicyCoreStatusProvider() {
 437   core_->store()->RemoveObserver(this);
 438 }
 439
 440 void CloudPolicyCoreStatusProvider::OnStoreLoaded(
 441     policy::CloudPolicyStore* store) {
 442   NotifyStatusChange();
 443 }
 444
 445 void CloudPolicyCoreStatusProvider::OnStoreError(
 446     policy::CloudPolicyStore* store) {
 447   NotifyStatusChange();
 448 }
 449
 450 UserPolicyStatusProvider::UserPolicyStatusProvider(
 451     policy::CloudPolicyCore* core) : CloudPolicyCoreStatusProvider(core) {
 452 }
 453
 454 UserPolicyStatusProvider::~UserPolicyStatusProvider() {
 455 }
 456
 457 void UserPolicyStatusProvider::GetStatus(base::DictionaryValue* dict) {
 458   if (!core_->store()->is_managed())
 459     return;
 460   GetStatusFromCore(core_, dict);
 461   ExtractDomainFromUsername(dict);
 462 }
 463
 464 #if defined(OS_CHROMEOS)
 465 DevicePolicyStatusProvider::DevicePolicyStatusProvider(
 466     policy::BrowserPolicyConnectorChromeOS* connector)
 467       : CloudPolicyCoreStatusProvider(
 468             connector->GetDeviceCloudPolicyManager()->core()) {
 469   domain_ = connector->GetEnterpriseDomain();
 470 }
 471
 472 DevicePolicyStatusProvider::~DevicePolicyStatusProvider() {
 473 }
 474
 475 void DevicePolicyStatusProvider::GetStatus(base::DictionaryValue* dict) {
 476   GetStatusFromCore(core_, dict);
 477   dict->SetString("domain", domain_);
 478 }
 479
 480 DeviceLocalAccountPolicyStatusProvider::DeviceLocalAccountPolicyStatusProvider(
 481     const std::string& user_id,
 482     policy::DeviceLocalAccountPolicyService* service)
 483       : user_id_(user_id),
 484         service_(service) {
 485   service_->AddObserver(this);
 486 }
 487
 488 DeviceLocalAccountPolicyStatusProvider::
 489     ~DeviceLocalAccountPolicyStatusProvider() {
 490   service_->RemoveObserver(this);
 491 }
 492
 493 void DeviceLocalAccountPolicyStatusProvider::GetStatus(
 494     base::DictionaryValue* dict) {
 495   const policy::DeviceLocalAccountPolicyBroker* broker =
 496       service_->GetBrokerForUser(user_id_);
 497   if (broker) {
 498     GetStatusFromCore(broker->core(), dict);
 499   } else {
 500     dict->SetBoolean("error", true);
 501     dict->SetString("status",
 502                     policy::FormatStoreStatus(
 503                         policy::CloudPolicyStore::STATUS_BAD_STATE,
 504                         policy::CloudPolicyValidatorBase::VALIDATION_OK));
 505     dict->SetString("username", std::string());
 506   }
 507   ExtractDomainFromUsername(dict);
 508   dict->SetBoolean("publicAccount", true);
 509 }
 510
 511 void DeviceLocalAccountPolicyStatusProvider::OnPolicyUpdated(
 512     const std::string& user_id) {
 513   if (user_id == user_id_)
 514     NotifyStatusChange();
 515 }
 516
 517 void DeviceLocalAccountPolicyStatusProvider::OnDeviceLocalAccountsChanged() {
 518   NotifyStatusChange();
 519 }
 520 #endif
 521
 522 PolicyUIHandler::PolicyUIHandler()
 523     : initialized_(false),
 524       weak_factory_(this) {
 525 }
 526
 527 PolicyUIHandler::~PolicyUIHandler() {
 528   GetPolicyService()->RemoveObserver(policy::POLICY_DOMAIN_CHROME, this);
 529   GetPolicyService()->RemoveObserver(policy::POLICY_DOMAIN_EXTENSIONS, this);
 530 }
 531
 532 void PolicyUIHandler::RegisterMessages() {
 533 #if defined(OS_CHROMEOS)
 534   policy::BrowserPolicyConnectorChromeOS* connector =
 535       g_browser_process->platform_part()->browser_policy_connector_chromeos();
 536   if (connector->IsEnterpriseManaged())
 537     device_status_provider_.reset(new DevicePolicyStatusProvider(connector));
 538
 539   const chromeos::UserManager* user_manager = chromeos::UserManager::Get();
 540   if (user_manager->IsLoggedInAsPublicAccount()) {
 541     policy::DeviceLocalAccountPolicyService* local_account_service =
 542         connector->GetDeviceLocalAccountPolicyService();
 543     if (local_account_service) {
 544       user_status_provider_.reset(
 545           new DeviceLocalAccountPolicyStatusProvider(
 546               user_manager->GetLoggedInUser()->email(), local_account_service));
 547     }
 548   } else {
 549     policy::UserCloudPolicyManagerChromeOS* user_cloud_policy_manager =
 550         policy::UserCloudPolicyManagerFactoryChromeOS::GetForProfile(
 551             Profile::FromWebUI(web_ui()));
 552     if (user_cloud_policy_manager) {
 553       user_status_provider_.reset(
 554           new UserPolicyStatusProvider(user_cloud_policy_manager->core()));
 555     }
 556   }
 557 #else
 558   policy::UserCloudPolicyManager* user_cloud_policy_manager =
 559       policy::UserCloudPolicyManagerFactory::GetForBrowserContext(
 560           web_ui()->GetWebContents()->GetBrowserContext());
 561   if (user_cloud_policy_manager) {
 562     user_status_provider_.reset(
 563         new UserPolicyStatusProvider(user_cloud_policy_manager->core()));
 564   }
 565 #endif
 566
 567   if (!user_status_provider_.get())
 568     user_status_provider_.reset(new CloudPolicyStatusProvider());
 569   if (!device_status_provider_.get())
 570     device_status_provider_.reset(new CloudPolicyStatusProvider());
 571
 572   base::Closure update_callback(base::Bind(&PolicyUIHandler::SendStatus,
 573                                            base::Unretained(this)));
 574   user_status_provider_->SetStatusChangeCallback(update_callback);
 575   device_status_provider_->SetStatusChangeCallback(update_callback);
 576   GetPolicyService()->AddObserver(policy::POLICY_DOMAIN_CHROME, this);
 577   GetPolicyService()->AddObserver(policy::POLICY_DOMAIN_EXTENSIONS, this);
 578
 579   registrar_.Add(this,
 580                  chrome::NOTIFICATION_EXTENSION_LOADED_DEPRECATED,
 581                  content::NotificationService::AllSources());
 582   registrar_.Add(this,
 583                  chrome::NOTIFICATION_EXTENSION_UNLOADED_DEPRECATED,
 584                  content::NotificationService::AllSources());
 585
 586   web_ui()->RegisterMessageCallback(
 587       "initialized",
 588       base::Bind(&PolicyUIHandler::HandleInitialized, base::Unretained(this)));
 589   web_ui()->RegisterMessageCallback(
 590       "reloadPolicies",
 591       base::Bind(&PolicyUIHandler::HandleReloadPolicies,
 592                  base::Unretained(this)));
 593 }
 594
 595 void PolicyUIHandler::Observe(int type,
 596                               const content::NotificationSource& source,
 597                               const content::NotificationDetails& details) {
 598   DCHECK(type == chrome::NOTIFICATION_EXTENSION_LOADED_DEPRECATED ||
 599          type == chrome::NOTIFICATION_EXTENSION_UNLOADED_DEPRECATED);
 600   SendPolicyNames();
 601   SendPolicyValues();
 602 }
 603
 604 void PolicyUIHandler::OnPolicyUpdated(const policy::PolicyNamespace& ns,
 605                                       const policy::PolicyMap& previous,
 606                                       const policy::PolicyMap& current) {
 607   SendPolicyValues();
 608 }
 609
 610 void PolicyUIHandler::SendPolicyNames() const {
 611   base::DictionaryValue names;
 612
 613   Profile* profile = Profile::FromWebUI(web_ui());
 614   policy::SchemaRegistry* registry =
 615       policy::SchemaRegistryServiceFactory::GetForContext(
 616           profile->GetOriginalProfile());
 617   scoped_refptr<policy::SchemaMap> schema_map = registry->schema_map();
 618
 619   // Add Chrome policy names.
 620   base::DictionaryValue* chrome_policy_names = new base::DictionaryValue;
 621   policy::PolicyNamespace chrome_ns(policy::POLICY_DOMAIN_CHROME, "");
 622   const policy::Schema* chrome_schema = schema_map->GetSchema(chrome_ns);
 623   for (policy::Schema::Iterator it = chrome_schema->GetPropertiesIterator();
 624        !it.IsAtEnd(); it.Advance()) {
 625     chrome_policy_names->SetBoolean(it.key(), true);
 626   }
 627   names.Set("chromePolicyNames", chrome_policy_names);
 628
 629 #if !defined(OS_ANDROID) && !defined(OS_IOS)
 630   // Add extension policy names.
 631   base::DictionaryValue* extension_policy_names = new base::DictionaryValue;
 632
 633   extensions::ExtensionSystem* extension_system =
 634       extensions::ExtensionSystem::Get(profile);
 635   const extensions::ExtensionSet* extensions =
 636       extension_system->extension_service()->extensions();
 637
 638   for (extensions::ExtensionSet::const_iterator it = extensions->begin();
 639        it != extensions->end(); ++it) {
 640     const extensions::Extension* extension = it->get();
 641     // Skip this extension if it's not an enterprise extension.
 642     if (!extension->manifest()->HasPath(
 643         extensions::manifest_keys::kStorageManagedSchema))
 644       continue;
 645     base::DictionaryValue* extension_value = new base::DictionaryValue;
 646     extension_value->SetString("name", extension->name());
 647     const policy::Schema* schema =
 648         schema_map->GetSchema(policy::PolicyNamespace(
 649             policy::POLICY_DOMAIN_EXTENSIONS, extension->id()));
 650     base::DictionaryValue* policy_names = new base::DictionaryValue;
 651     if (schema && schema->valid()) {
 652       // Get policy names from the extension's policy schema.
 653       // Store in a map, not an array, for faster lookup on JS side.
 654       for (policy::Schema::Iterator prop = schema->GetPropertiesIterator();
 655            !prop.IsAtEnd(); prop.Advance()) {
 656         policy_names->SetBoolean(prop.key(), true);
 657       }
 658     }
 659     extension_value->Set("policyNames", policy_names);
 660     extension_policy_names->Set(extension->id(), extension_value);
 661   }
 662   names.Set("extensionPolicyNames", extension_policy_names);
 663 #endif
 664
 665   web_ui()->CallJavascriptFunction("policy.Page.setPolicyNames", names);
 666 }
 667
 668 void PolicyUIHandler::SendPolicyValues() const {
 669   base::DictionaryValue all_policies;
 670
 671   // Add Chrome policy values.
 672   base::DictionaryValue* chrome_policies = new base::DictionaryValue;
 673   GetChromePolicyValues(chrome_policies);
 674   all_policies.Set("chromePolicies", chrome_policies);
 675
 676 #if !defined(OS_ANDROID) && !defined(OS_IOS)
 677   // Add extension policy values.
 678   extensions::ExtensionSystem* extension_system =
 679       extensions::ExtensionSystem::Get(Profile::FromWebUI(web_ui()));
 680   const extensions::ExtensionSet* extensions =
 681       extension_system->extension_service()->extensions();
 682   base::DictionaryValue* extension_values = new base::DictionaryValue;
 683
 684   for (extensions::ExtensionSet::const_iterator it = extensions->begin();
 685        it != extensions->end(); ++it) {
 686     const extensions::Extension* extension = it->get();
 687     // Skip this extension if it's not an enterprise extension.
 688     if (!extension->manifest()->HasPath(
 689         extensions::manifest_keys::kStorageManagedSchema))
 690       continue;
 691     base::DictionaryValue* extension_policies = new base::DictionaryValue;
 692     policy::PolicyNamespace policy_namespace = policy::PolicyNamespace(
 693         policy::POLICY_DOMAIN_EXTENSIONS, extension->id());
 694     policy::PolicyErrorMap empty_error_map;
 695     GetPolicyValues(GetPolicyService()->GetPolicies(policy_namespace),
 696                     &empty_error_map, extension_policies);
 697     extension_values->Set(extension->id(), extension_policies);
 698   }
 699   all_policies.Set("extensionPolicies", extension_values);
 700 #endif
 701   web_ui()->CallJavascriptFunction("policy.Page.setPolicyValues", all_policies);
 702 }
 703
 704 void PolicyUIHandler::GetPolicyValues(const policy::PolicyMap& map,
 705                                       policy::PolicyErrorMap* errors,
 706                                       base::DictionaryValue* values) const {
 707   for (policy::PolicyMap::const_iterator entry = map.begin();
 708        entry != map.end(); ++entry) {
 709     base::DictionaryValue* value = new base::DictionaryValue;
 710     value->Set("value", CopyAndConvert(entry->second.value).release());
 711     if (entry->second.scope == policy::POLICY_SCOPE_USER)
 712       value->SetString("scope", "user");
 713     else
 714       value->SetString("scope", "machine");
 715     if (entry->second.level == policy::POLICY_LEVEL_RECOMMENDED)
 716       value->SetString("level", "recommended");
 717     else
 718       value->SetString("level", "mandatory");
 719     base::string16 error = errors->GetErrors(entry->first);
 720     if (!error.empty())
 721       value->SetString("error", error);
 722     values->Set(entry->first, value);
 723   }
 724 }
 725
 726 void PolicyUIHandler::GetChromePolicyValues(
 727     base::DictionaryValue* values) const {
 728   policy::PolicyService* policy_service = GetPolicyService();
 729   policy::PolicyMap map;
 730
 731   // Make a copy that can be modified, since some policy values are modified
 732   // before being displayed.
 733   map.CopyFrom(policy_service->GetPolicies(
 734       policy::PolicyNamespace(policy::POLICY_DOMAIN_CHROME, std::string())));
 735
 736   // Get a list of all the errors in the policy values.
 737   const policy::ConfigurationPolicyHandlerList* handler_list =
 738       g_browser_process->browser_policy_connector()->GetHandlerList();
 739   policy::PolicyErrorMap errors;
 740   handler_list->ApplyPolicySettings(map, NULL, &errors);
 741
 742   // Convert dictionary values to strings for display.
 743   handler_list->PrepareForDisplaying(&map);
 744
 745   GetPolicyValues(map, &errors, values);
 746 }
 747
 748 void PolicyUIHandler::SendStatus() const {
 749   scoped_ptr<base::DictionaryValue> device_status(new base::DictionaryValue);
 750   device_status_provider_->GetStatus(device_status.get());
 751   if (!device_domain_.empty())
 752     device_status->SetString("domain", device_domain_);
 753   scoped_ptr<base::DictionaryValue> user_status(new base::DictionaryValue);
 754   user_status_provider_->GetStatus(user_status.get());
 755   std::string username;
 756   user_status->GetString("username", &username);
 757   if (!username.empty())
 758     user_status->SetString("domain", gaia::ExtractDomainName(username));
 759
 760   base::DictionaryValue status;
 761   if (!device_status->empty())
 762     status.Set("device", device_status.release());
 763   if (!user_status->empty())
 764     status.Set("user", user_status.release());
 765
 766   web_ui()->CallJavascriptFunction("policy.Page.setStatus", status);
 767 }
 768
 769 void PolicyUIHandler::HandleInitialized(const base::ListValue* args) {
 770   SendPolicyNames();
 771   SendPolicyValues();
 772   SendStatus();
 773 }
 774
 775 void PolicyUIHandler::HandleReloadPolicies(const base::ListValue* args) {
 776   GetPolicyService()->RefreshPolicies(
 777       base::Bind(&PolicyUIHandler::OnRefreshPoliciesDone,
 778                  weak_factory_.GetWeakPtr()));
 779 }
 780
 781 void PolicyUIHandler::OnRefreshPoliciesDone() const {
 782   web_ui()->CallJavascriptFunction("policy.Page.reloadPoliciesDone");
 783 }
 784
 785 policy::PolicyService* PolicyUIHandler::GetPolicyService() const {
 786   return policy::ProfilePolicyConnectorFactory::GetForProfile(
 787       Profile::FromWebUI(web_ui()))->policy_service();
 788 }
 789
 790 PolicyUI::PolicyUI(content::WebUI* web_ui) : WebUIController(web_ui) {
 791   web_ui->AddMessageHandler(new PolicyUIHandler);
 792   content::WebUIDataSource::Add(Profile::FromWebUI(web_ui),
 793                                 CreatePolicyUIHTMLSource());
 794 }
 795
 796 PolicyUI::~PolicyUI() {
 797 }