src/chrome/browser/chromeos/customization_document.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/chromeos/customization_document.h"
   6
   7 #include "base/bind.h"
   8 #include "base/bind_helpers.h"
   9 #include "base/file_util.h"
  10 #include "base/files/file_path.h"
  11 #include "base/json/json_reader.h"
  12 #include "base/logging.h"
  13 #include "base/memory/weak_ptr.h"
  14 #include "base/metrics/histogram.h"
  15 #include "base/prefs/pref_registry_simple.h"
  16 #include "base/prefs/pref_service.h"
  17 #include "base/strings/string_split.h"
  18 #include "base/strings/string_util.h"
  19 #include "base/strings/stringprintf.h"
  20 #include "base/strings/utf_string_conversions.h"
  21 #include "base/time/time.h"
  22 #include "chrome/browser/browser_process.h"
  23 #include "chrome/browser/chromeos/login/wizard_controller.h"
  24 #include "chrome/browser/chromeos/net/delay_network_call.h"
  25 #include "chrome/browser/extensions/external_loader.h"
  26 #include "chrome/browser/extensions/external_provider_impl.h"
  27 #include "chrome/browser/profiles/profile.h"
  28 #include "chrome/browser/ui/app_list/app_list_syncable_service.h"
  29 #include "chrome/browser/ui/app_list/app_list_syncable_service_factory.h"
  30 #include "chrome/common/extensions/extension_constants.h"
  31 #include "chromeos/network/network_state.h"
  32 #include "chromeos/network/network_state_handler.h"
  33 #include "chromeos/system/statistics_provider.h"
  34 #include "components/user_prefs/pref_registry_syncable.h"
  35 #include "content/public/browser/browser_thread.h"
  36 #include "net/base/load_flags.h"
  37 #include "net/http/http_response_headers.h"
  38 #include "net/http/http_status_code.h"
  39 #include "net/url_request/url_fetcher.h"
  40
  41 using content::BrowserThread;
  42
  43 namespace chromeos {
  44 namespace {
  45
  46   // Manifest attributes names.
  47 const char kVersionAttr[] = "version";
  48 const char kDefaultAttr[] = "default";
  49 const char kInitialLocaleAttr[] = "initial_locale";
  50 const char kInitialTimezoneAttr[] = "initial_timezone";
  51 const char kKeyboardLayoutAttr[] = "keyboard_layout";
  52 const char kHwidMapAttr[] = "hwid_map";
  53 const char kHwidMaskAttr[] = "hwid_mask";
  54 const char kSetupContentAttr[] = "setup_content";
  55 const char kEulaPageAttr[] = "eula_page";
  56 const char kDefaultWallpaperAttr[] = "default_wallpaper";
  57 const char kDefaultAppsAttr[] = "default_apps";
  58 const char kLocalizedContent[] = "localized_content";
  59 const char kDefaultAppsFolderName[] = "default_apps_folder_name";
  60
  61 const char kAcceptedManifestVersion[] = "1.0";
  62
  63 // Path to OEM partner startup customization manifest.
  64 const char kStartupCustomizationManifestPath[] =
  65     "/opt/oem/etc/startup_manifest.json";
  66
  67 // Name of local state option that tracks if services customization has been
  68 // applied.
  69 const char kServicesCustomizationAppliedPref[] = "ServicesCustomizationApplied";
  70
  71 // Maximum number of retries to fetch file if network is not available.
  72 const int kMaxFetchRetries = 3;
  73
  74 // Delay between file fetch retries if network is not available.
  75 const int kRetriesDelayInSec = 2;
  76
  77 // Name of profile option that tracks cached version of service customization.
  78 const char kServicesCustomizationKey[] = "customization.manifest_cache";
  79
  80 // Empty customization document that doesn't customize anything.
  81 const char kEmptyServicesCustomizationManifest[] = "{ \"version\": \"1.0\" }";
  82
  83 // Global overrider for ServicesCustomizationDocument for tests.
  84 ServicesCustomizationDocument* g_test_services_customization_document = NULL;
  85
  86 // Services customization document load results reported via the
  87 // "ServicesCustomization.LoadResult" histogram.
  88 // It is append-only enum due to use in a histogram!
  89 enum HistogramServicesCustomizationLoadResult {
  90   HISTOGRAM_LOAD_RESULT_SUCCESS = 0,
  91   HISTOGRAM_LOAD_RESULT_FILE_NOT_FOUND = 1,
  92   HISTOGRAM_LOAD_RESULT_PARSING_ERROR = 2,
  93   HISTOGRAM_LOAD_RESULT_RETRIES_FAIL = 3,
  94   HISTOGRAM_LOAD_RESULT_MAX_VALUE = 4
  95 };
  96
  97 void LogManifestLoadResult(HistogramServicesCustomizationLoadResult result) {
  98   UMA_HISTOGRAM_ENUMERATION("ServicesCustomization.LoadResult",
  99                             result,
 100                             HISTOGRAM_LOAD_RESULT_MAX_VALUE);
 101 }
 102
 103 std::string GetLocaleSpecificStringImpl(
 104     const base::DictionaryValue* root,
 105     const std::string& locale,
 106     const std::string& dictionary_name,
 107     const std::string& entry_name) {
 108   const base::DictionaryValue* dictionary_content = NULL;
 109   if (!root || !root->GetDictionary(dictionary_name, &dictionary_content))
 110     return std::string();
 111
 112   const base::DictionaryValue* locale_dictionary = NULL;
 113   if (dictionary_content->GetDictionary(locale, &locale_dictionary)) {
 114     std::string result;
 115     if (locale_dictionary->GetString(entry_name, &result))
 116       return result;
 117   }
 118
 119   const base::DictionaryValue* default_dictionary = NULL;
 120   if (dictionary_content->GetDictionary(kDefaultAttr, &default_dictionary)) {
 121     std::string result;
 122     if (default_dictionary->GetString(entry_name, &result))
 123       return result;
 124   }
 125
 126   return std::string();
 127 }
 128
 129 }  // anonymous namespace
 130
 131 // Template URL where to fetch OEM services customization manifest from.
 132 const char ServicesCustomizationDocument::kManifestUrl[] =
 133     "https://ssl.gstatic.com/chrome/chromeos-customization/%s.json";
 134
 135 // A custom extensions::ExternalLoader that the ServicesCustomizationDocument
 136 // creates and uses to publish OEM default apps to the extensions system.
 137 class ServicesCustomizationExternalLoader
 138     : public extensions::ExternalLoader,
 139       public base::SupportsWeakPtr<ServicesCustomizationExternalLoader> {
 140  public:
 141   explicit ServicesCustomizationExternalLoader(Profile* profile)
 142       : is_apps_set_(false), profile_(profile) {}
 143
 144   Profile* profile() { return profile_; }
 145
 146   // Used by the ServicesCustomizationDocument to update the current apps.
 147   void SetCurrentApps(scoped_ptr<base::DictionaryValue> prefs) {
 148     apps_.Swap(prefs.get());
 149     is_apps_set_ = true;
 150     StartLoading();
 151   }
 152
 153   // Implementation of extensions::ExternalLoader:
 154   virtual void StartLoading() OVERRIDE {
 155     if (!is_apps_set_) {
 156       ServicesCustomizationDocument::GetInstance()->StartFetching();
 157       // No return here to call LoadFinished with empty list initially.
 158       // When manifest is fetched, it will be called again with real list.
 159       // It is safe to return empty list because this provider didn't install
 160       // any app yet so no app can be removed due to returning empty list.
 161     }
 162
 163     prefs_.reset(apps_.DeepCopy());
 164     VLOG(1) << "ServicesCustomization extension loader publishing "
 165             << apps_.size() << " apps.";
 166     LoadFinished();
 167   }
 168
 169  protected:
 170   virtual ~ServicesCustomizationExternalLoader() {}
 171
 172  private:
 173   bool is_apps_set_;
 174   base::DictionaryValue apps_;
 175   Profile* profile_;
 176
 177   DISALLOW_COPY_AND_ASSIGN(ServicesCustomizationExternalLoader);
 178 };
 179
 180 // CustomizationDocument implementation. ---------------------------------------
 181
 182 CustomizationDocument::CustomizationDocument(
 183     const std::string& accepted_version)
 184     : accepted_version_(accepted_version) {}
 185
 186 CustomizationDocument::~CustomizationDocument() {}
 187
 188 bool CustomizationDocument::LoadManifestFromFile(
 189     const base::FilePath& manifest_path) {
 190   std::string manifest;
 191   if (!base::ReadFileToString(manifest_path, &manifest))
 192     return false;
 193   return LoadManifestFromString(manifest);
 194 }
 195
 196 bool CustomizationDocument::LoadManifestFromString(
 197     const std::string& manifest) {
 198   int error_code = 0;
 199   std::string error;
 200   scoped_ptr<base::Value> root(base::JSONReader::ReadAndReturnError(manifest,
 201       base::JSON_ALLOW_TRAILING_COMMAS, &error_code, &error));
 202   if (error_code != base::JSONReader::JSON_NO_ERROR)
 203     LOG(ERROR) << error;
 204   DCHECK(root.get() != NULL);
 205   if (root.get() == NULL)
 206     return false;
 207   DCHECK(root->GetType() == base::Value::TYPE_DICTIONARY);
 208   if (root->GetType() == base::Value::TYPE_DICTIONARY) {
 209     root_.reset(static_cast<base::DictionaryValue*>(root.release()));
 210     std::string result;
 211     if (root_->GetString(kVersionAttr, &result) &&
 212         result == accepted_version_)
 213       return true;
 214
 215     LOG(ERROR) << "Wrong customization manifest version";
 216     root_.reset(NULL);
 217   }
 218   return false;
 219 }
 220
 221 std::string CustomizationDocument::GetLocaleSpecificString(
 222     const std::string& locale,
 223     const std::string& dictionary_name,
 224     const std::string& entry_name) const {
 225   return GetLocaleSpecificStringImpl(
 226       root_.get(), locale, dictionary_name, entry_name);
 227 }
 228
 229 // StartupCustomizationDocument implementation. --------------------------------
 230
 231 StartupCustomizationDocument::StartupCustomizationDocument()
 232     : CustomizationDocument(kAcceptedManifestVersion) {
 233   {
 234     // Loading manifest causes us to do blocking IO on UI thread.
 235     // Temporarily allow it until we fix http://crosbug.com/11103
 236     base::ThreadRestrictions::ScopedAllowIO allow_io;
 237     LoadManifestFromFile(base::FilePath(kStartupCustomizationManifestPath));
 238   }
 239   Init(system::StatisticsProvider::GetInstance());
 240 }
 241
 242 StartupCustomizationDocument::StartupCustomizationDocument(
 243     system::StatisticsProvider* statistics_provider,
 244     const std::string& manifest)
 245     : CustomizationDocument(kAcceptedManifestVersion) {
 246   LoadManifestFromString(manifest);
 247   Init(statistics_provider);
 248 }
 249
 250 StartupCustomizationDocument::~StartupCustomizationDocument() {}
 251
 252 StartupCustomizationDocument* StartupCustomizationDocument::GetInstance() {
 253   return Singleton<StartupCustomizationDocument,
 254       DefaultSingletonTraits<StartupCustomizationDocument> >::get();
 255 }
 256
 257 void StartupCustomizationDocument::Init(
 258     system::StatisticsProvider* statistics_provider) {
 259   if (IsReady()) {
 260     root_->GetString(kInitialLocaleAttr, &initial_locale_);
 261     root_->GetString(kInitialTimezoneAttr, &initial_timezone_);
 262     root_->GetString(kKeyboardLayoutAttr, &keyboard_layout_);
 263
 264     std::string hwid;
 265     if (statistics_provider->GetMachineStatistic(
 266             system::kHardwareClassKey, &hwid)) {
 267       base::ListValue* hwid_list = NULL;
 268       if (root_->GetList(kHwidMapAttr, &hwid_list)) {
 269         for (size_t i = 0; i < hwid_list->GetSize(); ++i) {
 270           base::DictionaryValue* hwid_dictionary = NULL;
 271           std::string hwid_mask;
 272           if (hwid_list->GetDictionary(i, &hwid_dictionary) &&
 273               hwid_dictionary->GetString(kHwidMaskAttr, &hwid_mask)) {
 274             if (MatchPattern(hwid, hwid_mask)) {
 275               // If HWID for this machine matches some mask, use HWID specific
 276               // settings.
 277               std::string result;
 278               if (hwid_dictionary->GetString(kInitialLocaleAttr, &result))
 279                 initial_locale_ = result;
 280
 281               if (hwid_dictionary->GetString(kInitialTimezoneAttr, &result))
 282                 initial_timezone_ = result;
 283
 284               if (hwid_dictionary->GetString(kKeyboardLayoutAttr, &result))
 285                 keyboard_layout_ = result;
 286             }
 287             // Don't break here to allow other entires to be applied if match.
 288           } else {
 289             LOG(ERROR) << "Syntax error in customization manifest";
 290           }
 291         }
 292       }
 293     } else {
 294       LOG(ERROR) << "HWID is missing in machine statistics";
 295     }
 296   }
 297
 298   // If manifest doesn't exist still apply values from VPD.
 299   statistics_provider->GetMachineStatistic(kInitialLocaleAttr,
 300                                            &initial_locale_);
 301   statistics_provider->GetMachineStatistic(kInitialTimezoneAttr,
 302                                            &initial_timezone_);
 303   statistics_provider->GetMachineStatistic(kKeyboardLayoutAttr,
 304                                            &keyboard_layout_);
 305   configured_locales_.resize(0);
 306   base::SplitString(initial_locale_, ',', &configured_locales_);
 307   // Let's always have configured_locales_.front() a valid entry.
 308   if (configured_locales_.size() == 0)
 309     configured_locales_.push_back(std::string());
 310 }
 311
 312 const std::vector<std::string>&
 313 StartupCustomizationDocument::configured_locales() const {
 314   return configured_locales_;
 315 }
 316
 317 const std::string& StartupCustomizationDocument::initial_locale_default()
 318     const {
 319   DCHECK(configured_locales_.size() > 0);
 320   return configured_locales_.front();
 321 }
 322
 323 std::string StartupCustomizationDocument::GetEULAPage(
 324     const std::string& locale) const {
 325   return GetLocaleSpecificString(locale, kSetupContentAttr, kEulaPageAttr);
 326 }
 327
 328 // ServicesCustomizationDocument implementation. -------------------------------
 329
 330 ServicesCustomizationDocument::ServicesCustomizationDocument()
 331     : CustomizationDocument(kAcceptedManifestVersion),
 332       num_retries_(0),
 333       fetch_started_(false),
 334       network_delay_(base::TimeDelta::FromMilliseconds(
 335           kDefaultNetworkRetryDelayMS)),
 336       weak_ptr_factory_(this) {
 337 }
 338
 339 ServicesCustomizationDocument::ServicesCustomizationDocument(
 340     const std::string& manifest)
 341     : CustomizationDocument(kAcceptedManifestVersion),
 342       network_delay_(base::TimeDelta::FromMilliseconds(
 343           kDefaultNetworkRetryDelayMS)),
 344       weak_ptr_factory_(this) {
 345   LoadManifestFromString(manifest);
 346 }
 347
 348 ServicesCustomizationDocument::~ServicesCustomizationDocument() {}
 349
 350 // static
 351 ServicesCustomizationDocument* ServicesCustomizationDocument::GetInstance() {
 352   if (g_test_services_customization_document)
 353     return g_test_services_customization_document;
 354
 355   return Singleton<ServicesCustomizationDocument,
 356       DefaultSingletonTraits<ServicesCustomizationDocument> >::get();
 357 }
 358
 359 // static
 360 void ServicesCustomizationDocument::RegisterPrefs(
 361     PrefRegistrySimple* registry) {
 362   registry->RegisterBooleanPref(kServicesCustomizationAppliedPref, false);
 363 }
 364
 365 // static
 366 void ServicesCustomizationDocument::RegisterProfilePrefs(
 367     user_prefs::PrefRegistrySyncable* registry) {
 368   registry->RegisterDictionaryPref(
 369       kServicesCustomizationKey,
 370       user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);
 371 }
 372
 373 // static
 374 bool ServicesCustomizationDocument::WasOOBECustomizationApplied() {
 375   PrefService* prefs = g_browser_process->local_state();
 376   return prefs->GetBoolean(kServicesCustomizationAppliedPref);
 377 }
 378
 379 // static
 380 void ServicesCustomizationDocument::SetApplied(bool val) {
 381   PrefService* prefs = g_browser_process->local_state();
 382   prefs->SetBoolean(kServicesCustomizationAppliedPref, val);
 383 }
 384
 385 void ServicesCustomizationDocument::StartFetching() {
 386   if (IsReady() || fetch_started_)
 387     return;
 388
 389   if (!url_.is_valid()) {
 390     std::string customization_id;
 391     chromeos::system::StatisticsProvider* provider =
 392         chromeos::system::StatisticsProvider::GetInstance();
 393     if (provider->GetMachineStatistic(system::kCustomizationIdKey,
 394                                       &customization_id) &&
 395         !customization_id.empty()) {
 396       url_ = GURL(base::StringPrintf(
 397           kManifestUrl, StringToLowerASCII(customization_id).c_str()));
 398     }
 399   }
 400
 401   if (url_.is_valid()) {
 402     fetch_started_ = true;
 403     if (url_.SchemeIsFile()) {
 404       BrowserThread::PostTask(BrowserThread::FILE, FROM_HERE,
 405           base::Bind(&ServicesCustomizationDocument::ReadFileInBackground,
 406                      weak_ptr_factory_.GetWeakPtr(),
 407                      base::FilePath(url_.path())));
 408     } else {
 409       StartFileFetch();
 410     }
 411   }
 412 }
 413
 414 // static
 415 void ServicesCustomizationDocument::ReadFileInBackground(
 416     base::WeakPtr<ServicesCustomizationDocument> self,
 417     const base::FilePath& file) {
 418   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
 419
 420   std::string manifest;
 421   if (!base::ReadFileToString(file, &manifest)) {
 422     manifest.clear();
 423     LOG(ERROR) << "Failed to load services customization manifest from: "
 424                << file.value();
 425   }
 426
 427   BrowserThread::PostTask(BrowserThread::UI, FROM_HERE,
 428       base::Bind(&ServicesCustomizationDocument::OnManifesteRead,
 429                  self,
 430                  manifest));
 431 }
 432
 433 void ServicesCustomizationDocument::OnManifesteRead(
 434     const std::string& manifest) {
 435   if (!manifest.empty())
 436     LoadManifestFromString(manifest);
 437
 438   fetch_started_ = false;
 439 }
 440
 441 void ServicesCustomizationDocument::StartFileFetch() {
 442   DelayNetworkCall(base::Bind(&ServicesCustomizationDocument::DoStartFileFetch,
 443                               weak_ptr_factory_.GetWeakPtr()),
 444       network_delay_);
 445 }
 446
 447 void ServicesCustomizationDocument::DoStartFileFetch() {
 448   url_fetcher_.reset(net::URLFetcher::Create(
 449       url_, net::URLFetcher::GET, this));
 450   url_fetcher_->SetRequestContext(g_browser_process->system_request_context());
 451   url_fetcher_->AddExtraRequestHeader("Accept: application/json");
 452   url_fetcher_->SetLoadFlags(net::LOAD_DO_NOT_SEND_COOKIES |
 453                              net::LOAD_DO_NOT_SAVE_COOKIES |
 454                              net::LOAD_DISABLE_CACHE |
 455                              net::LOAD_DO_NOT_SEND_AUTH_DATA);
 456   url_fetcher_->Start();
 457 }
 458
 459 bool ServicesCustomizationDocument::LoadManifestFromString(
 460     const std::string& manifest) {
 461   if (CustomizationDocument::LoadManifestFromString(manifest)) {
 462     LogManifestLoadResult(HISTOGRAM_LOAD_RESULT_SUCCESS);
 463     OnManifestLoaded();
 464     return true;
 465   }
 466
 467   LogManifestLoadResult(HISTOGRAM_LOAD_RESULT_PARSING_ERROR);
 468   return false;
 469 }
 470
 471 void ServicesCustomizationDocument::OnManifestLoaded() {
 472   if (!ServicesCustomizationDocument::WasOOBECustomizationApplied())
 473     ApplyOOBECustomization();
 474
 475   scoped_ptr<base::DictionaryValue> prefs =
 476       GetDefaultAppsInProviderFormat(*root_);
 477   for (ExternalLoaders::iterator it = external_loaders_.begin();
 478        it != external_loaders_.end(); ++it) {
 479     if (*it) {
 480       UpdateCachedManifest((*it)->profile());
 481       (*it)->SetCurrentApps(
 482           scoped_ptr<base::DictionaryValue>(prefs->DeepCopy()));
 483       SetOemFolderName((*it)->profile(), *root_);
 484     }
 485   }
 486 }
 487
 488 void ServicesCustomizationDocument::OnURLFetchComplete(
 489     const net::URLFetcher* source) {
 490   std::string mime_type;
 491   std::string data;
 492   if (source->GetStatus().is_success() &&
 493       source->GetResponseCode() == net::HTTP_OK &&
 494       source->GetResponseHeaders()->GetMimeType(&mime_type) &&
 495       mime_type == "application/json" &&
 496       source->GetResponseAsString(&data)) {
 497     LoadManifestFromString(data);
 498   } else if (source->GetResponseCode() == net::HTTP_NOT_FOUND) {
 499     LOG(ERROR) << "Customization manifest is missing on server: "
 500                << source->GetURL().spec();
 501     OnCustomizationNotFound();
 502   } else {
 503     if (num_retries_ < kMaxFetchRetries) {
 504       num_retries_++;
 505       content::BrowserThread::PostDelayedTask(
 506           content::BrowserThread::UI,
 507           FROM_HERE,
 508           base::Bind(&ServicesCustomizationDocument::StartFileFetch,
 509                      weak_ptr_factory_.GetWeakPtr()),
 510           base::TimeDelta::FromSeconds(kRetriesDelayInSec));
 511       return;
 512     }
 513     // This doesn't stop fetching manifest on next restart.
 514     LOG(ERROR) << "URL fetch for services customization failed:"
 515                << " response code = " << source->GetResponseCode()
 516                << " URL = " << source->GetURL().spec();
 517
 518     LogManifestLoadResult(HISTOGRAM_LOAD_RESULT_RETRIES_FAIL);
 519   }
 520   fetch_started_ = false;
 521 }
 522
 523 bool ServicesCustomizationDocument::ApplyOOBECustomization() {
 524   // TODO(dpolukhin): apply default wallpaper, crbug.com/348136.
 525   SetApplied(true);
 526   return true;
 527 }
 528
 529 GURL ServicesCustomizationDocument::GetDefaultWallpaperUrl() const {
 530   if (!IsReady())
 531     return GURL();
 532
 533   std::string url;
 534   root_->GetString(kDefaultWallpaperAttr, &url);
 535   return GURL(url);
 536 }
 537
 538 bool ServicesCustomizationDocument::GetDefaultApps(
 539     std::vector<std::string>* ids) const {
 540   ids->clear();
 541   if (!IsReady())
 542     return false;
 543
 544   base::ListValue* apps_list = NULL;
 545   if (!root_->GetList(kDefaultAppsAttr, &apps_list))
 546     return false;
 547
 548   for (size_t i = 0; i < apps_list->GetSize(); ++i) {
 549     std::string app_id;
 550     if (apps_list->GetString(i, &app_id)) {
 551       ids->push_back(app_id);
 552     } else {
 553       LOG(ERROR) << "Wrong format of default application list";
 554       return false;
 555     }
 556   }
 557
 558   return true;
 559 }
 560
 561 std::string ServicesCustomizationDocument::GetOemAppsFolderName(
 562     const std::string& locale) const {
 563   if (!IsReady())
 564     return std::string();
 565
 566   return GetOemAppsFolderNameImpl(locale, *root_);
 567 }
 568
 569 scoped_ptr<base::DictionaryValue>
 570 ServicesCustomizationDocument::GetDefaultAppsInProviderFormat(
 571     const base::DictionaryValue& root) {
 572   scoped_ptr<base::DictionaryValue> prefs(new base::DictionaryValue);
 573   const base::ListValue* apps_list = NULL;
 574   if (root.GetList(kDefaultAppsAttr, &apps_list)) {
 575     for (size_t i = 0; i < apps_list->GetSize(); ++i) {
 576       std::string app_id;
 577       if (apps_list->GetString(i, &app_id)) {
 578         base::DictionaryValue* entry = new base::DictionaryValue;
 579         entry->SetString(extensions::ExternalProviderImpl::kExternalUpdateUrl,
 580                          extension_urls::GetWebstoreUpdateUrl().spec());
 581         prefs->Set(app_id, entry);
 582       } else {
 583         LOG(ERROR) << "Wrong format of default application list";
 584         prefs->Clear();
 585         break;
 586       }
 587     }
 588   }
 589
 590   return prefs.Pass();
 591 }
 592
 593 void ServicesCustomizationDocument::UpdateCachedManifest(Profile* profile) {
 594   profile->GetPrefs()->Set(kServicesCustomizationKey, *root_);
 595 }
 596
 597 extensions::ExternalLoader* ServicesCustomizationDocument::CreateExternalLoader(
 598     Profile* profile) {
 599   ServicesCustomizationExternalLoader* loader =
 600       new ServicesCustomizationExternalLoader(profile);
 601   external_loaders_.push_back(loader->AsWeakPtr());
 602
 603   if (IsReady()) {
 604     UpdateCachedManifest(profile);
 605     loader->SetCurrentApps(GetDefaultAppsInProviderFormat(*root_));
 606     SetOemFolderName(profile, *root_);
 607   } else {
 608     const base::DictionaryValue* root =
 609         profile->GetPrefs()->GetDictionary(kServicesCustomizationKey);
 610     std::string version;
 611     if (root && root->GetString(kVersionAttr, &version)) {
 612       // If version exists, profile has cached version of customization.
 613       loader->SetCurrentApps(GetDefaultAppsInProviderFormat(*root));
 614       SetOemFolderName(profile, *root);
 615     } else {
 616       // StartFetching will be called from ServicesCustomizationExternalLoader
 617       // when StartLoading is called. We can't initiate manifest fetch here
 618       // because caller may never call StartLoading for the provider.
 619     }
 620   }
 621
 622   return loader;
 623 }
 624
 625 void ServicesCustomizationDocument::OnCustomizationNotFound() {
 626   LogManifestLoadResult(HISTOGRAM_LOAD_RESULT_FILE_NOT_FOUND);
 627   LoadManifestFromString(kEmptyServicesCustomizationManifest);
 628 }
 629
 630 void ServicesCustomizationDocument::SetOemFolderName(
 631     Profile* profile,
 632     const base::DictionaryValue& root) {
 633   std::string locale = g_browser_process->GetApplicationLocale();
 634   std::string name = GetOemAppsFolderNameImpl(locale, root);
 635   if (!name.empty()) {
 636     app_list::AppListSyncableService* service =
 637         app_list::AppListSyncableServiceFactory::GetForProfile(profile);
 638     if (!service) {
 639       LOG(WARNING) << "AppListSyncableService is not ready for setting OEM "
 640                       "folder name";
 641       return;
 642     }
 643     service->SetOemFolderName(name);
 644   }
 645 }
 646
 647 std::string ServicesCustomizationDocument::GetOemAppsFolderNameImpl(
 648     const std::string& locale,
 649     const base::DictionaryValue& root) const {
 650   return GetLocaleSpecificStringImpl(
 651       &root, locale, kLocalizedContent, kDefaultAppsFolderName);
 652 }
 653
 654 // static
 655 void ServicesCustomizationDocument::InitializeForTesting() {
 656   g_test_services_customization_document = new ServicesCustomizationDocument;
 657   g_test_services_customization_document->network_delay_ = base::TimeDelta();
 658 }
 659
 660 // static
 661 void ServicesCustomizationDocument::ShutdownForTesting() {
 662   delete g_test_services_customization_document;
 663   g_test_services_customization_document = NULL;
 664 }
 665
 666 }  // namespace chromeos