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// Copyright (c) 2012 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/extensions/default_apps.h"
#include <stddef.h>
#include <memory>
#include <set>
#include <string>
#include "base/command_line.h"
#include "base/stl_util.h"
#include "base/strings/string_util.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/first_run/first_run.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/common/chrome_switches.h"
#include "chrome/common/extensions/extension_constants.h"
#include "chrome/common/pref_names.h"
#include "components/pref_registry/pref_registry_syncable.h"
#include "components/prefs/pref_service.h"
#include "components/version_info/version_info.h"
#include "extensions/common/constants.h"
#include "extensions/common/extension.h"
namespace {
// Returns true if the app was a default app in Chrome 22
bool IsOldDefaultApp(const std::string& extension_id) {
return extension_id == extension_misc::kGmailAppId ||
extension_id == extension_misc::kYoutubeAppId;
}
bool IsLocaleSupported() {
// Don't bother installing default apps in locales where it is known that
// they don't work.
// TODO(rogerta): Do this check dynamically once the webstore can expose
// an API. See http://crbug.com/101357
const std::string& locale = g_browser_process->GetApplicationLocale();
static const char* const unsupported_locales[] = {"CN", "TR", "IR"};
for (size_t i = 0; i < base::size(unsupported_locales); ++i) {
if (base::EndsWith(locale, unsupported_locales[i],
base::CompareCase::INSENSITIVE_ASCII)) {
return false;
}
}
return true;
}
} // namespace
namespace default_apps {
void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry) {
registry->RegisterIntegerPref(prefs::kDefaultAppsInstallState, kUnknown);
}
bool Provider::ShouldInstallInProfile() {
// We decide to install or not install default apps based on the following
// criteria, from highest priority to lowest priority:
//
// - The command line option. Tests use this option to disable installation
// of default apps in some cases.
// - If the locale is not compatible with the defaults, don't install them.
// - The kDefaultApps preferences value in the profile. This value is
// usually set in the master_preferences file.
bool install_apps =
profile_->GetPrefs()->GetString(prefs::kDefaultApps) == "install";
InstallState state =
static_cast<InstallState>(profile_->GetPrefs()->GetInteger(
prefs::kDefaultAppsInstallState));
is_migration_ = (state == kProvideLegacyDefaultApps);
switch (state) {
case kUnknown: {
// Only new installations and profiles get default apps. In theory the
// new profile checks should catch new installations, but that is not
// always the case (http:/crbug.com/145351).
bool is_new_profile = profile_->WasCreatedByVersionOrLater(
version_info::GetVersionNumber());
bool is_first_run = first_run::IsChromeFirstRun();
if (!is_first_run && !is_new_profile)
install_apps = false;
break;
}
// The old default apps were provided as external extensions and were
// installed everytime Chrome was run. Thus, changing the list of default
// apps affected all users. Migrate old default apps to new mechanism where
// they are installed only once as INTERNAL.
// TODO(grv) : remove after Q1-2013.
case kProvideLegacyDefaultApps:
profile_->GetPrefs()->SetInteger(
prefs::kDefaultAppsInstallState,
kAlreadyInstalledDefaultApps);
break;
case kAlreadyInstalledDefaultApps:
case kNeverInstallDefaultApps:
install_apps = false;
break;
default:
NOTREACHED();
}
if (install_apps && !IsLocaleSupported())
install_apps = false;
// Default apps are only installed on profile creation or a new chrome
// download.
if (state == kUnknown) {
if (install_apps) {
profile_->GetPrefs()->SetInteger(prefs::kDefaultAppsInstallState,
kAlreadyInstalledDefaultApps);
} else {
profile_->GetPrefs()->SetInteger(prefs::kDefaultAppsInstallState,
kNeverInstallDefaultApps);
}
}
return install_apps;
}
Provider::Provider(Profile* profile,
VisitorInterface* service,
extensions::ExternalLoader* loader,
extensions::Manifest::Location crx_location,
extensions::Manifest::Location download_location,
int creation_flags)
: extensions::ExternalProviderImpl(service, loader, profile, crx_location,
download_location, creation_flags),
profile_(profile),
is_migration_(false) {
DCHECK(profile);
set_auto_acknowledge(true);
}
void Provider::VisitRegisteredExtension() {
if (!profile_ || !ShouldInstallInProfile()) {
SetPrefs(std::make_unique<base::DictionaryValue>());
return;
}
extensions::ExternalProviderImpl::VisitRegisteredExtension();
}
void Provider::SetPrefs(std::unique_ptr<base::DictionaryValue> prefs) {
if (is_migration_) {
std::set<std::string> new_default_apps;
for (base::DictionaryValue::Iterator i(*prefs); !i.IsAtEnd(); i.Advance()) {
if (!IsOldDefaultApp(i.key()))
new_default_apps.insert(i.key());
}
// Filter out the new default apps for migrating users.
for (auto it = new_default_apps.begin(); it != new_default_apps.end();
++it) {
prefs->Remove(*it, NULL);
}
}
ExternalProviderImpl::SetPrefs(std::move(prefs));
}
} // namespace default_apps
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