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// Copyright 2015 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/ui/webui/settings/settings_clear_browsing_data_handler.h"
#include <stddef.h>
#include "base/macros.h"
#include "base/metrics/histogram_macros.h"
#include "base/metrics/sparse_histogram.h"
#include "chrome/browser/browsing_data/browsing_data_helper.h"
#include "chrome/browser/browsing_data/browsing_data_remover_factory.h"
#include "chrome/common/pref_names.h"
#include "components/prefs/pref_service.h"
#include "content/public/browser/web_ui.h"
namespace settings {
ClearBrowsingDataHandler::ClearBrowsingDataHandler(content::WebUI* webui)
: remover_(nullptr) {
PrefService* prefs = Profile::FromWebUI(webui)->GetPrefs();
clear_plugin_lso_data_enabled_.Init(prefs::kClearPluginLSODataEnabled, prefs);
pepper_flash_settings_enabled_.Init(prefs::kPepperFlashSettingsEnabled,
prefs);
allow_deleting_browser_history_.Init(
prefs::kAllowDeletingBrowserHistory, prefs,
base::Bind(&ClearBrowsingDataHandler::OnBrowsingHistoryPrefChanged,
base::Unretained(this)));
}
ClearBrowsingDataHandler::~ClearBrowsingDataHandler() {
if (remover_)
remover_->RemoveObserver(this);
}
void ClearBrowsingDataHandler::RegisterMessages() {
web_ui()->RegisterMessageCallback(
"performClearBrowserData",
base::Bind(&ClearBrowsingDataHandler::HandleClearBrowserData,
base::Unretained(this)));
}
void ClearBrowsingDataHandler::HandleClearBrowserData(
const base::ListValue* args) {
// We should never be called when the previous clearing has not yet finished.
CHECK(!remover_);
Profile* profile = Profile::FromWebUI(web_ui());
PrefService* prefs = profile->GetPrefs();
int site_data_mask = BrowsingDataRemover::REMOVE_SITE_DATA;
// Don't try to clear LSO data if it's not supported.
if (!*clear_plugin_lso_data_enabled_)
site_data_mask &= ~BrowsingDataRemover::REMOVE_PLUGIN_DATA;
int remove_mask = 0;
if (*allow_deleting_browser_history_) {
if (prefs->GetBoolean(prefs::kDeleteBrowsingHistory))
remove_mask |= BrowsingDataRemover::REMOVE_HISTORY;
if (prefs->GetBoolean(prefs::kDeleteDownloadHistory))
remove_mask |= BrowsingDataRemover::REMOVE_DOWNLOADS;
}
if (prefs->GetBoolean(prefs::kDeleteCache))
remove_mask |= BrowsingDataRemover::REMOVE_CACHE;
int origin_mask = 0;
if (prefs->GetBoolean(prefs::kDeleteCookies)) {
remove_mask |= site_data_mask;
origin_mask |= BrowsingDataHelper::UNPROTECTED_WEB;
}
if (prefs->GetBoolean(prefs::kDeletePasswords))
remove_mask |= BrowsingDataRemover::REMOVE_PASSWORDS;
if (prefs->GetBoolean(prefs::kDeleteFormData))
remove_mask |= BrowsingDataRemover::REMOVE_FORM_DATA;
// Clearing Content Licenses is only supported in Pepper Flash.
if (prefs->GetBoolean(prefs::kDeauthorizeContentLicenses) &&
*pepper_flash_settings_enabled_) {
remove_mask |= BrowsingDataRemover::REMOVE_CONTENT_LICENSES;
}
if (prefs->GetBoolean(prefs::kDeleteHostedAppsData)) {
remove_mask |= site_data_mask;
origin_mask |= BrowsingDataHelper::PROTECTED_WEB;
}
// Record the deletion of cookies and cache.
BrowsingDataRemover::CookieOrCacheDeletionChoice choice =
BrowsingDataRemover::NEITHER_COOKIES_NOR_CACHE;
if (prefs->GetBoolean(prefs::kDeleteCookies)) {
choice = prefs->GetBoolean(prefs::kDeleteCache)
? BrowsingDataRemover::BOTH_COOKIES_AND_CACHE
: BrowsingDataRemover::ONLY_COOKIES;
} else if (prefs->GetBoolean(prefs::kDeleteCache)) {
choice = BrowsingDataRemover::ONLY_CACHE;
}
UMA_HISTOGRAM_ENUMERATION(
"History.ClearBrowsingData.UserDeletedCookieOrCacheFromDialog", choice,
BrowsingDataRemover::MAX_CHOICE_VALUE);
// Record the circumstances under which passwords are deleted.
if (prefs->GetBoolean(prefs::kDeletePasswords)) {
static const char* other_types[] = {
prefs::kDeleteBrowsingHistory,
prefs::kDeleteDownloadHistory,
prefs::kDeleteCache,
prefs::kDeleteCookies,
prefs::kDeleteFormData,
prefs::kDeleteHostedAppsData,
prefs::kDeauthorizeContentLicenses,
};
static size_t num_other_types = arraysize(other_types);
int checked_other_types = std::count_if(
other_types, other_types + num_other_types,
[prefs](const std::string& pref) { return prefs->GetBoolean(pref); });
UMA_HISTOGRAM_SPARSE_SLOWLY(
"History.ClearBrowsingData.PasswordsDeletion.AdditionalDatatypesCount",
checked_other_types);
}
int period_selected = prefs->GetInteger(prefs::kDeleteTimePeriod);
remover_ = BrowsingDataRemoverFactory::GetForBrowserContext(profile);
remover_->AddObserver(this);
remover_->Remove(
BrowsingDataRemover::Period(
static_cast<BrowsingDataRemover::TimePeriod>(period_selected)),
remove_mask, origin_mask);
}
void ClearBrowsingDataHandler::OnBrowsingDataRemoverDone() {
remover_->RemoveObserver(this);
remover_ = nullptr;
web_ui()->CallJavascriptFunction("SettingsClearBrowserData.doneClearing");
}
void ClearBrowsingDataHandler::OnBrowsingHistoryPrefChanged() {
web_ui()->CallJavascriptFunction(
"SettingsClearBrowserData.setAllowDeletingHistory",
base::FundamentalValue(*allow_deleting_browser_history_));
}
} // namespace settings
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