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// Copyright (c) 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/profile_resetter.h"
#include "base/prefs/pref_service.h"
#include "chrome/browser/browsing_data/browsing_data_helper.h"
#include "chrome/browser/chrome_notification_types.h"
#include "chrome/browser/content_settings/host_content_settings_map.h"
#include "chrome/browser/extensions/extension_service.h"
#include "chrome/browser/extensions/extension_system.h"
#include "chrome/browser/extensions/management_policy.h"
#include "chrome/browser/google/google_url_tracker.h"
#include "chrome/browser/profile_resetter/brandcoded_default_settings.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/search_engines/template_url_prepopulate_data.h"
#include "chrome/browser/search_engines/template_url_service.h"
#include "chrome/browser/search_engines/template_url_service_factory.h"
#include "chrome/browser/ui/browser.h"
#include "chrome/browser/ui/browser_iterator.h"
#include "chrome/browser/ui/tabs/tab_strip_model.h"
#include "chrome/common/pref_names.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/notification_source.h"
ProfileResetter::ProfileResetter(Profile* profile)
: profile_(profile),
template_url_service_(TemplateURLServiceFactory::GetForProfile(profile_)),
pending_reset_flags_(0),
cookies_remover_(NULL) {
DCHECK(CalledOnValidThread());
DCHECK(profile_);
registrar_.Add(this, chrome::NOTIFICATION_TEMPLATE_URL_SERVICE_LOADED,
content::Source<TemplateURLService>(template_url_service_));
}
ProfileResetter::~ProfileResetter() {
if (cookies_remover_)
cookies_remover_->RemoveObserver(this);
}
void ProfileResetter::Reset(
ProfileResetter::ResettableFlags resettable_flags,
scoped_ptr<BrandcodedDefaultSettings> master_settings,
const base::Closure& callback) {
DCHECK(CalledOnValidThread());
DCHECK(master_settings);
master_settings_.swap(master_settings);
// We should never be called with unknown flags.
CHECK_EQ(static_cast<ResettableFlags>(0), resettable_flags & ~ALL);
// We should never be called when a previous reset has not finished.
CHECK_EQ(static_cast<ResettableFlags>(0), pending_reset_flags_);
callback_ = callback;
// These flags are set to false by the individual reset functions.
pending_reset_flags_ = resettable_flags;
struct {
Resettable flag;
void (ProfileResetter::*method)();
} flag2Method [] = {
{ DEFAULT_SEARCH_ENGINE, &ProfileResetter::ResetDefaultSearchEngine },
{ HOMEPAGE, &ProfileResetter::ResetHomepage },
{ CONTENT_SETTINGS, &ProfileResetter::ResetContentSettings },
{ COOKIES_AND_SITE_DATA, &ProfileResetter::ResetCookiesAndSiteData },
{ EXTENSIONS, &ProfileResetter::ResetExtensions },
{ STARTUP_PAGES, &ProfileResetter::ResetStartupPages },
{ PINNED_TABS, &ProfileResetter::ResetPinnedTabs },
};
ResettableFlags reset_triggered_for_flags = 0;
for (size_t i = 0; i < ARRAYSIZE_UNSAFE(flag2Method); ++i) {
if (resettable_flags & flag2Method[i].flag) {
reset_triggered_for_flags |= flag2Method[i].flag;
(this->*flag2Method[i].method)();
}
}
DCHECK_EQ(resettable_flags, reset_triggered_for_flags);
}
bool ProfileResetter::IsActive() const {
DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
return pending_reset_flags_ != 0;
}
void ProfileResetter::MarkAsDone(Resettable resettable) {
DCHECK(CalledOnValidThread());
// Check that we are never called twice or unexpectedly.
CHECK(pending_reset_flags_ & resettable);
pending_reset_flags_ &= ~resettable;
if (!pending_reset_flags_) {
content::BrowserThread::PostTask(content::BrowserThread::UI, FROM_HERE,
callback_);
callback_.Reset();
master_settings_.reset();
}
}
void ProfileResetter::ResetDefaultSearchEngine() {
DCHECK(CalledOnValidThread());
DCHECK(template_url_service_);
// If TemplateURLServiceFactory is ready we can clean it right now.
// Otherwise, load it and continue from ProfileResetter::Observe.
if (template_url_service_->loaded()) {
PrefService* prefs = profile_->GetPrefs();
DCHECK(prefs);
TemplateURLPrepopulateData::ClearPrepopulatedEnginesInPrefs(profile_);
scoped_ptr<ListValue> search_engines(
master_settings_->GetSearchProviderOverrides());
if (search_engines) {
// This Chrome distribution channel provides a custom search engine. We
// must reset to it.
ListPrefUpdate update(prefs, prefs::kSearchProviderOverrides);
update->Swap(search_engines.get());
}
template_url_service_->ResetURLs();
// Reset Google search URL.
prefs->ClearPref(prefs::kLastPromptedGoogleURL);
const TemplateURL* default_search_provider =
template_url_service_->GetDefaultSearchProvider();
if (default_search_provider &&
default_search_provider->url_ref().HasGoogleBaseURLs())
GoogleURLTracker::RequestServerCheck(profile_, true);
MarkAsDone(DEFAULT_SEARCH_ENGINE);
} else {
template_url_service_->Load();
}
}
void ProfileResetter::ResetHomepage() {
DCHECK(CalledOnValidThread());
PrefService* prefs = profile_->GetPrefs();
DCHECK(prefs);
std::string homepage;
bool homepage_is_ntp, show_home_button;
if (master_settings_->GetHomepage(&homepage))
prefs->SetString(prefs::kHomePage, homepage);
else
prefs->ClearPref(prefs::kHomePage);
if (master_settings_->GetHomepageIsNewTab(&homepage_is_ntp))
prefs->SetBoolean(prefs::kHomePageIsNewTabPage, homepage_is_ntp);
else
prefs->ClearPref(prefs::kHomePageIsNewTabPage);
if (master_settings_->GetShowHomeButton(&show_home_button))
prefs->SetBoolean(prefs::kShowHomeButton, show_home_button);
else
prefs->ClearPref(prefs::kShowHomeButton);
MarkAsDone(HOMEPAGE);
}
void ProfileResetter::ResetContentSettings() {
DCHECK(CalledOnValidThread());
PrefService* prefs = profile_->GetPrefs();
HostContentSettingsMap* map = profile_->GetHostContentSettingsMap();
for (int type = 0; type < CONTENT_SETTINGS_NUM_TYPES; ++type) {
map->ClearSettingsForOneType(static_cast<ContentSettingsType>(type));
if (HostContentSettingsMap::IsSettingAllowedForType(
prefs,
CONTENT_SETTING_DEFAULT,
static_cast<ContentSettingsType>(type)))
map->SetDefaultContentSetting(static_cast<ContentSettingsType>(type),
CONTENT_SETTING_DEFAULT);
}
MarkAsDone(CONTENT_SETTINGS);
}
void ProfileResetter::ResetCookiesAndSiteData() {
DCHECK(CalledOnValidThread());
DCHECK(!cookies_remover_);
cookies_remover_ = BrowsingDataRemover::CreateForUnboundedRange(profile_);
cookies_remover_->AddObserver(this);
int remove_mask = BrowsingDataRemover::REMOVE_SITE_DATA |
BrowsingDataRemover::REMOVE_CACHE;
PrefService* prefs = profile_->GetPrefs();
DCHECK(prefs);
// Don't try to clear LSO data if it's not supported.
if (!prefs->GetBoolean(prefs::kClearPluginLSODataEnabled))
remove_mask &= ~BrowsingDataRemover::REMOVE_PLUGIN_DATA;
cookies_remover_->Remove(remove_mask, BrowsingDataHelper::UNPROTECTED_WEB);
}
void ProfileResetter::ResetExtensions() {
DCHECK(CalledOnValidThread());
std::vector<std::string> brandcode_extensions;
master_settings_->GetExtensions(&brandcode_extensions);
ExtensionService* extension_service = profile_->GetExtensionService();
DCHECK(extension_service);
extension_service->DisableUserExtensions(brandcode_extensions);
MarkAsDone(EXTENSIONS);
}
void ProfileResetter::ResetStartupPages() {
DCHECK(CalledOnValidThread());
PrefService* prefs = profile_->GetPrefs();
DCHECK(prefs);
scoped_ptr<ListValue> url_list(master_settings_->GetUrlsToRestoreOnStartup());
if (url_list)
ListPrefUpdate(prefs, prefs::kURLsToRestoreOnStartup)->Swap(url_list.get());
else
prefs->ClearPref(prefs::kURLsToRestoreOnStartup);
int restore_on_startup;
if (master_settings_->GetRestoreOnStartup(&restore_on_startup))
prefs->SetInteger(prefs::kRestoreOnStartup, restore_on_startup);
else
prefs->ClearPref(prefs::kRestoreOnStartup);
prefs->SetBoolean(prefs::kRestoreOnStartupMigrated, true);
MarkAsDone(STARTUP_PAGES);
}
void ProfileResetter::ResetPinnedTabs() {
// Unpin all the tabs.
for (chrome::BrowserIterator it; !it.done(); it.Next()) {
if (it->is_type_tabbed() && it->profile() == profile_) {
TabStripModel* tab_model = it->tab_strip_model();
// Here we assume that indexof(any mini tab) < indexof(any normal tab).
// If we unpin the tab, it can be moved to the right. Thus traversing in
// reverse direction is correct.
for (int i = tab_model->count() - 1; i >= 0; --i) {
if (tab_model->IsTabPinned(i) && !tab_model->IsAppTab(i))
tab_model->SetTabPinned(i, false);
}
}
}
MarkAsDone(PINNED_TABS);
}
void ProfileResetter::Observe(int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) {
DCHECK(CalledOnValidThread());
// TemplateURLService has loaded. If we need to clean search engines, it's
// time to go on.
if (pending_reset_flags_ & DEFAULT_SEARCH_ENGINE)
ResetDefaultSearchEngine();
}
void ProfileResetter::OnBrowsingDataRemoverDone() {
cookies_remover_ = NULL;
MarkAsDone(COOKIES_AND_SITE_DATA);
}
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