Revert "Eliminate all code related to the AutomaticProfileResetter."

chrome/browser/profile_resetter/automatic_profile_resetter_delegate.cc

+// Copyright 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "chrome/browser/profile_resetter/automatic_profile_resetter_delegate.h"
+
+#include <string>
+
+#include "base/bind.h"
+#include "base/bind_helpers.h"
+#include "base/callback.h"
+#include "base/logging.h"
+#include "base/md5.h"
+#include "base/memory/scoped_vector.h"
+#include "base/strings/string_number_conversions.h"
+#include "base/strings/string_util.h"
+#include "base/values.h"
+#include "chrome/app/chrome_command_ids.h"
+#include "chrome/browser/chrome_notification_types.h"
+#include "chrome/browser/google/google_brand.h"
+#include "chrome/browser/profile_resetter/brandcode_config_fetcher.h"
+#include "chrome/browser/profile_resetter/profile_reset_global_error.h"
+#include "chrome/browser/profile_resetter/profile_resetter.h"
+#include "chrome/browser/profile_resetter/resettable_settings_snapshot.h"
+#include "chrome/browser/profiles/profile.h"
+#include "chrome/browser/search_engines/template_url_service_factory.h"
+#include "chrome/browser/ui/browser.h"
+#include "chrome/browser/ui/browser_finder.h"
+#include "chrome/browser/ui/global_error/global_error_service.h"
+#include "chrome/browser/ui/global_error/global_error_service_factory.h"
+#include "components/search_engines/template_url_prepopulate_data.h"
+#include "components/search_engines/template_url_service.h"
+#include "content/public/browser/browser_thread.h"
+#include "content/public/browser/notification_service.h"
+
+#if defined(OS_WIN)
+#include "chrome/browser/enumerate_modules_model_win.h"
+#endif
+
+namespace {
+
+scoped_ptr<base::DictionaryValue> BuildSubTreeFromTemplateURL(
+    const TemplateURL* template_url) {
+  // If this value contains a placeholder in the pre-populated data, it will
+  // have been replaced as it was loaded into a TemplateURL.
+  // BuildSubTreeFromTemplateURL works with TemplateURL (not TemplateURLData)
+  // in order to maintain this behaviour.
+  // TODO(engedy): Confirm the expected behaviour and convert to use
+  // TemplateURLData if possible."
+  scoped_ptr<base::DictionaryValue> tree(new base::DictionaryValue);
+  tree->SetString("name", template_url->short_name());
+  tree->SetString("short_name", template_url->short_name());
+  tree->SetString("keyword", template_url->keyword());
+  tree->SetString("search_url", template_url->url());
+  tree->SetString("url", template_url->url());
+  tree->SetString("suggestions_url", template_url->suggestions_url());
+  tree->SetString("instant_url", template_url->instant_url());
+  tree->SetString("image_url", template_url->image_url());
+  tree->SetString("new_tab_url", template_url->new_tab_url());
+  tree->SetString("search_url_post_params",
+                  template_url->search_url_post_params());
+  tree->SetString("suggestions_url_post_params",
+                  template_url->suggestions_url_post_params());
+  tree->SetString("instant_url_post_params",
+                  template_url->instant_url_post_params());
+  tree->SetString("image_url_post_params",
+                  template_url->image_url_post_params());
+  base::ListValue* alternate_urls = new base::ListValue;
+  alternate_urls->AppendStrings(template_url->alternate_urls());
+  tree->Set("alternate_urls", alternate_urls);
+  tree->SetString("favicon_url", template_url->favicon_url().spec());
+  tree->SetString("originating_url", template_url->originating_url().spec());
+  tree->SetBoolean("safe_for_autoreplace",
+                   template_url->safe_for_autoreplace());
+  base::ListValue* input_encodings = new base::ListValue;
+  input_encodings->AppendStrings(template_url->input_encodings());
+  tree->Set("input_encodings", input_encodings);
+  tree->SetString("id", base::Int64ToString(template_url->id()));
+  tree->SetString("date_created",
+                  base::Int64ToString(
+                      template_url->date_created().ToInternalValue()));
+  tree->SetString("last_modified",
+                  base::Int64ToString(
+                      template_url->last_modified().ToInternalValue()));
+  tree->SetBoolean("created_by_policy", template_url->created_by_policy());
+  tree->SetInteger("usage_count", template_url->usage_count());
+  tree->SetInteger("prepopulate_id", template_url->prepopulate_id());
+  tree->SetString("search_terms_replacement_key",
+                  template_url->search_terms_replacement_key());
+  return tree.Pass();
+}
+
+#if defined(OS_WIN)
+void ExtractLoadedModuleNameDigests(
+    const base::ListValue& module_list,
+    base::ListValue* module_name_digests) {
+  DCHECK(module_name_digests);
+
+  // EnumerateModulesModel produces a list of dictionaries.
+  // Each dictionary corresponds to a module and exposes a number of properties.
+  // We care only about 'type' and 'name'.
+  for (size_t i = 0; i < module_list.GetSize(); ++i) {
+    const base::DictionaryValue* module_dictionary = NULL;
+    if (!module_list.GetDictionary(i, &module_dictionary))
+      continue;
+    ModuleEnumerator::ModuleType module_type =
+        ModuleEnumerator::LOADED_MODULE;
+    if (!module_dictionary->GetInteger(
+            "type", reinterpret_cast<int*>(&module_type)) ||
+        module_type != ModuleEnumerator::LOADED_MODULE) {
+      continue;
+    }
+    std::string module_name;
+    if (!module_dictionary->GetString("name", &module_name))
+      continue;
+    base::StringToLowerASCII(&module_name);
+    module_name_digests->AppendString(base::MD5String(module_name));
+  }
+}
+#endif
+
+}  // namespace
+
+
+// AutomaticProfileResetterDelegateImpl --------------------------------------
+
+AutomaticProfileResetterDelegateImpl::AutomaticProfileResetterDelegateImpl(
+    Profile* profile,
+    ProfileResetter::ResettableFlags resettable_aspects)
+    : profile_(profile),
+      global_error_service_(GlobalErrorServiceFactory::GetForProfile(profile_)),
+      template_url_service_(TemplateURLServiceFactory::GetForProfile(profile_)),
+      resettable_aspects_(resettable_aspects) {
+  DCHECK(profile_);
+  if (template_url_service_) {
+    template_url_service_->AddObserver(this);
+    // Needed so that |template_url_service_ready_event_| will be signaled even
+    // when TemplateURLService had been already initialized before this point.
+    OnTemplateURLServiceChanged();
+  }
+
+#if defined(OS_WIN)
+  module_list_.reset(EnumerateModulesModel::GetInstance()->GetModuleList());
+#endif
+  if (module_list_) {
+    // Having a non-empty module list proves that enumeration had been already
+    // performed before this point.
+    modules_have_been_enumerated_event_.Signal();
+  }
+  registrar_.Add(this,
+                 chrome::NOTIFICATION_MODULE_LIST_ENUMERATED,
+                 content::NotificationService::AllSources());
+}
+
+AutomaticProfileResetterDelegateImpl::~AutomaticProfileResetterDelegateImpl() {
+  if (template_url_service_)
+    template_url_service_->RemoveObserver(this);
+}
+
+void AutomaticProfileResetterDelegateImpl::EnumerateLoadedModulesIfNeeded() {
+  if (!modules_have_been_enumerated_event_.is_signaled()) {
+#if defined(OS_WIN)
+    EnumerateModulesModel::GetInstance()->ScanNow();
+#else
+    modules_have_been_enumerated_event_.Signal();
+#endif
+  }
+}
+
+void AutomaticProfileResetterDelegateImpl::
+    RequestCallbackWhenLoadedModulesAreEnumerated(
+    const base::Closure& ready_callback) const {
+  DCHECK(!ready_callback.is_null());
+  modules_have_been_enumerated_event_.Post(FROM_HERE, ready_callback);
+}
+
+void AutomaticProfileResetterDelegateImpl::LoadTemplateURLServiceIfNeeded() {
+  DCHECK(template_url_service_);
+  template_url_service_->Load();  // Safe to call even if it has loaded already.
+}
+
+void AutomaticProfileResetterDelegateImpl::
+    RequestCallbackWhenTemplateURLServiceIsLoaded(
+    const base::Closure& ready_callback) const {
+  DCHECK(!ready_callback.is_null());
+  template_url_service_ready_event_.Post(FROM_HERE, ready_callback);
+}
+
+void AutomaticProfileResetterDelegateImpl::
+    FetchBrandcodedDefaultSettingsIfNeeded() {
+  if (brandcoded_config_fetcher_ ||
+      brandcoded_defaults_fetched_event_.is_signaled())
+    return;
+
+  std::string brandcode;
+  google_brand::GetBrand(&brandcode);
+  if (brandcode.empty()) {
+    brandcoded_defaults_.reset(new BrandcodedDefaultSettings);
+    brandcoded_defaults_fetched_event_.Signal();
+  } else {
+    brandcoded_config_fetcher_.reset(new BrandcodeConfigFetcher(
+        base::Bind(
+            &AutomaticProfileResetterDelegateImpl::OnBrandcodedDefaultsFetched,
+            base::Unretained(this)),
+        GURL("https://tools.google.com/service/update2"),
+        brandcode));
+  }
+}
+
+void AutomaticProfileResetterDelegateImpl::
+    RequestCallbackWhenBrandcodedDefaultsAreFetched(
+    const base::Closure& ready_callback) const {
+  DCHECK(!ready_callback.is_null());
+  brandcoded_defaults_fetched_event_.Post(FROM_HERE, ready_callback);
+}
+
+scoped_ptr<base::ListValue> AutomaticProfileResetterDelegateImpl::
+    GetLoadedModuleNameDigests() const {
+  DCHECK(modules_have_been_enumerated_event_.is_signaled());
+  scoped_ptr<base::ListValue> result(new base::ListValue);
+#if defined(OS_WIN)
+  if (module_list_)
+    ExtractLoadedModuleNameDigests(*module_list_, result.get());
+#endif
+  return result.Pass();
+}
+
+scoped_ptr<base::DictionaryValue> AutomaticProfileResetterDelegateImpl::
+    GetDefaultSearchProviderDetails() const {
+  DCHECK(template_url_service_);
+  DCHECK(template_url_service_->loaded());
+
+  const TemplateURL* default_search_provider =
+      template_url_service_->GetDefaultSearchProvider();
+
+  // Having a NULL default search provider is due to either:
+  //  1.) default search providers being disabled by policy,
+  //  2.) directly tampering with the Preferences and/or the SQLite DBs.
+  // In this state, Omnibox non-keyword search functionality is disabled.
+  return default_search_provider ?
+      BuildSubTreeFromTemplateURL(default_search_provider) :
+      scoped_ptr<base::DictionaryValue>(new base::DictionaryValue);
+}
+
+bool AutomaticProfileResetterDelegateImpl::
+    IsDefaultSearchProviderManaged() const {
+  DCHECK(template_url_service_);
+  DCHECK(template_url_service_->loaded());
+  return template_url_service_->is_default_search_managed();
+}
+
+scoped_ptr<base::ListValue> AutomaticProfileResetterDelegateImpl::
+    GetPrepopulatedSearchProvidersDetails() const {
+  size_t default_search_index = 0;
+  ScopedVector<TemplateURLData> engines(
+      TemplateURLPrepopulateData::GetPrepopulatedEngines(
+          profile_->GetPrefs(), &default_search_index));
+  scoped_ptr<base::ListValue> engines_details_list(new base::ListValue);
+  for (ScopedVector<TemplateURLData>::const_iterator it = engines.begin();
+       it != engines.end(); ++it) {
+    TemplateURL template_url(**it);
+    engines_details_list->Append(
+        BuildSubTreeFromTemplateURL(&template_url).release());
+  }
+  return engines_details_list.Pass();
+}
+
+bool AutomaticProfileResetterDelegateImpl::TriggerPrompt() {
+  DCHECK(global_error_service_);
+
+  if (!ProfileResetGlobalError::IsSupportedOnPlatform())
+    return false;
+
+  ProfileResetGlobalError* global_error = new ProfileResetGlobalError(profile_);
+  global_error_service_->AddGlobalError(global_error);
+
+  // Do not try to show bubble if another GlobalError is already showing one.
+  const GlobalErrorService::GlobalErrorList& global_errors(
+      global_error_service_->errors());
+  GlobalErrorService::GlobalErrorList::const_iterator it;
+  for (it = global_errors.begin(); it != global_errors.end(); ++it) {
+    if ((*it)->GetBubbleView())
+      break;
+  }
+  if (it == global_errors.end()) {
+    Browser* browser = chrome::FindTabbedBrowser(
+        profile_,
+        false /*match_original_profiles*/,
+        chrome::GetActiveDesktop());
+    if (browser)
+      global_error->ShowBubbleView(browser);
+  }
+  return true;
+}
+
+void AutomaticProfileResetterDelegateImpl::TriggerProfileSettingsReset(
+    bool send_feedback,
+    const base::Closure& completion) {
+  DCHECK(!profile_resetter_);
+  DCHECK(!completion.is_null());
+
+  profile_resetter_.reset(new ProfileResetter(profile_));
+  FetchBrandcodedDefaultSettingsIfNeeded();
+  RequestCallbackWhenBrandcodedDefaultsAreFetched(base::Bind(
+      &AutomaticProfileResetterDelegateImpl::RunProfileSettingsReset,
+      AsWeakPtr(),
+      send_feedback,
+      completion));
+}
+
+void AutomaticProfileResetterDelegateImpl::OnTemplateURLServiceChanged() {
+  DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
+  DCHECK(template_url_service_);
+  if (template_url_service_->loaded() &&
+      !template_url_service_ready_event_.is_signaled())
+    template_url_service_ready_event_.Signal();
+}
+
+void AutomaticProfileResetterDelegateImpl::DismissPrompt() {
+  DCHECK(global_error_service_);
+  GlobalError* global_error =
+      global_error_service_->GetGlobalErrorByMenuItemCommandID(
+          IDC_SHOW_SETTINGS_RESET_BUBBLE);
+  if (global_error) {
+    // This will also close/destroy the Bubble UI if it is currently shown.
+    global_error_service_->RemoveGlobalError(global_error);
+    delete global_error;
+  }
+}
+
+void AutomaticProfileResetterDelegateImpl::Observe(
+    int type,
+    const content::NotificationSource& source,
+    const content::NotificationDetails& details) {
+  DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
+  if (type == chrome::NOTIFICATION_MODULE_LIST_ENUMERATED &&
+      !modules_have_been_enumerated_event_.is_signaled()) {
+#if defined(OS_WIN)
+    module_list_.reset(EnumerateModulesModel::GetInstance()->GetModuleList());
+#endif
+    modules_have_been_enumerated_event_.Signal();
+  }
+}
+
+void AutomaticProfileResetterDelegateImpl::SendFeedback(
+    const std::string& report) const {
+  SendSettingsFeedback(report, profile_, PROFILE_RESET_PROMPT);
+}
+
+void AutomaticProfileResetterDelegateImpl::RunProfileSettingsReset(
+    bool send_feedback,
+    const base::Closure& completion) {
+  DCHECK(brandcoded_defaults_);
+  scoped_ptr<ResettableSettingsSnapshot> old_settings_snapshot;
+  if (send_feedback) {
+    old_settings_snapshot.reset(new ResettableSettingsSnapshot(profile_));
+    old_settings_snapshot->RequestShortcuts(base::Closure());
+  }
+  profile_resetter_->Reset(resettable_aspects_,
+                           brandcoded_defaults_.Pass(),
+                           send_feedback,
+                           base::Bind(&AutomaticProfileResetterDelegateImpl::
+                                          OnProfileSettingsResetCompleted,
+                                      AsWeakPtr(),
+                                      completion,
+                                      base::Passed(&old_settings_snapshot)));
+}
+
+void AutomaticProfileResetterDelegateImpl::
+    OnBrandcodedDefaultsFetched() {
+  DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
+  DCHECK(brandcoded_config_fetcher_);
+  DCHECK(!brandcoded_config_fetcher_->IsActive());
+  brandcoded_defaults_ = brandcoded_config_fetcher_->GetSettings();
+  if (!brandcoded_defaults_)
+    brandcoded_defaults_.reset(new BrandcodedDefaultSettings);
+  brandcoded_defaults_fetched_event_.Signal();
+}
+
+void AutomaticProfileResetterDelegateImpl::OnProfileSettingsResetCompleted(
+    const base::Closure& user_callback,
+    scoped_ptr<ResettableSettingsSnapshot> old_settings_snapshot) {
+  DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
+  if (old_settings_snapshot) {
+    ResettableSettingsSnapshot new_settings_snapshot(profile_);
+    int difference =
+        old_settings_snapshot->FindDifferentFields(new_settings_snapshot);
+    if (difference) {
+      old_settings_snapshot->Subtract(new_settings_snapshot);
+      std::string report =
+          SerializeSettingsReport(*old_settings_snapshot, difference);
+      SendFeedback(report);
+    }
+  }
+  content::BrowserThread::PostTask(
+      content::BrowserThread::UI, FROM_HERE, user_callback);
+}