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// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/web_applications/extension_status_utils.h"
#include "base/feature_list.h"
#include "base/metrics/field_trial_params.h"
#include "base/one_shot_event.h"
#include "base/strings/string_split.h"
#include "build/build_config.h"
#include "chrome/browser/extensions/extension_management.h"
#include "chrome/browser/extensions/managed_installation_mode.h"
#include "chrome/browser/extensions/preinstalled_apps.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/common/chrome_features.h"
#include "extensions/browser/extension_prefs.h"
#include "extensions/browser/extension_registry.h"
#include "extensions/browser/extension_system.h"
#include "extensions/browser/management_policy.h"
#include "extensions/browser/pref_names.h"
#include "extensions/common/constants.h"
#include "extensions/common/extension.h"
namespace {
const char* g_preinstalled_app_for_testing = nullptr;
#if BUILDFLAG(IS_WIN) || BUILDFLAG(IS_MAC) || BUILDFLAG(IS_LINUX)
// TODO(b/268221237): Remove this allow-list.
const char kDefaultAllowedExtensionIds[] =
"alhngdkjgnedakdlnamimgfihgkmenbh,"
"gnddkmpjjjcimefninepfmmddpgaaado";
base::FeatureParam<std::string> kChromeAppAllowlist{
&features::kChromeAppsDeprecation, "allow_list",
kDefaultAllowedExtensionIds};
#endif
} // namespace
namespace extensions {
namespace testing {
bool g_enable_chrome_apps_for_testing = false;
}
bool IsExtensionBlockedByPolicy(content::BrowserContext* context,
const std::string& extension_id) {
auto* registry = ExtensionRegistry::Get(context);
// May be nullptr in unit tests.
if (!registry)
return false;
const Extension* extension = registry->GetInstalledExtension(extension_id);
ExtensionManagement* management =
ExtensionManagementFactory::GetForBrowserContext(context);
ManagedInstallationMode mode =
extension ? management->GetInstallationMode(extension)
: management->GetInstallationMode(extension_id,
/*update_url=*/std::string());
return mode == ManagedInstallationMode::kBlocked ||
mode == ManagedInstallationMode::kRemoved;
}
bool IsExtensionInstalled(content::BrowserContext* context,
const std::string& extension_id) {
auto* registry = ExtensionRegistry::Get(context);
// May be nullptr in unit tests.
return registry && registry->GetInstalledExtension(extension_id);
}
bool IsExtensionForceInstalled(content::BrowserContext* context,
const std::string& extension_id,
std::u16string* reason) {
auto* registry = ExtensionRegistry::Get(context);
// May be nullptr in unit tests.
if (!registry)
return false;
auto* extension_system = ExtensionSystem::Get(context);
if (!extension_system)
return false;
const Extension* extension = registry->GetInstalledExtension(extension_id);
return extension &&
extension_system->management_policy()->MustRemainInstalled(extension,
reason);
}
bool IsExtensionDefaultInstalled(content::BrowserContext* context,
const std::string& extension_id) {
auto* registry = ExtensionRegistry::Get(context);
// May be nullptr in unit tests.
if (!registry)
return false;
const Extension* extension = registry->GetInstalledExtension(extension_id);
return extension &&
(extension->creation_flags() & Extension::WAS_INSTALLED_BY_DEFAULT);
}
bool IsExternalExtensionUninstalled(content::BrowserContext* context,
const std::string& extension_id) {
auto* prefs = ExtensionPrefs::Get(context);
// May be nullptr in unit tests.
return prefs && prefs->IsExternalExtensionUninstalled(extension_id);
}
#if BUILDFLAG(IS_WIN) || BUILDFLAG(IS_MAC) || BUILDFLAG(IS_LINUX)
bool IsExtensionUnsupportedDeprecatedApp(content::BrowserContext* context,
const std::string& extension_id) {
if (testing::g_enable_chrome_apps_for_testing) {
return false;
}
if (extension_id == extensions::kWebStoreAppId)
return false;
auto* registry = ExtensionRegistry::Get(context);
// May be nullptr in unit tests.
if (!registry)
return false;
const extensions::Extension* app = registry->GetExtensionById(
extension_id, extensions::ExtensionRegistry::EVERYTHING);
if (!app || !app->is_app())
return false;
// This feature parameter can specify specific extension ids to continue
// allowing.
if (!kChromeAppAllowlist.Get().empty()) {
std::vector<std::string> allowed_extension_ids =
base::SplitString(kChromeAppAllowlist.Get(), ",", base::TRIM_WHITESPACE,
base::SPLIT_WANT_NONEMPTY);
for (const std::string& allowed_extension_id : allowed_extension_ids) {
if (extension_id == allowed_extension_id)
return false;
}
}
return true;
}
#endif
void OnExtensionSystemReady(content::BrowserContext* context,
base::OnceClosure callback) {
ExtensionSystem::Get(context)->ready().Post(FROM_HERE, std::move(callback));
}
bool DidPreinstalledAppsPerformNewInstallation(Profile* profile) {
#if !BUILDFLAG(IS_CHROMEOS)
return preinstalled_apps::Provider::DidPerformNewInstallationForProfile(
profile);
#else
return false;
#endif
}
bool IsPreinstalledAppId(const std::string& app_id) {
if (g_preinstalled_app_for_testing &&
app_id == g_preinstalled_app_for_testing)
return true;
// Also update the duplicated function in extensions/common/constants.cc when
// changing the logic here.
return app_id == extension_misc::kGmailAppId ||
app_id == extension_misc::kGoogleDocsAppId ||
app_id == extension_misc::kGoogleDriveAppId ||
app_id == extension_misc::kGoogleSheetsAppId ||
app_id == extension_misc::kGoogleSlidesAppId ||
app_id == extension_misc::kYoutubeAppId;
}
void SetPreinstalledAppIdForTesting(const char* app_id) {
g_preinstalled_app_for_testing = app_id;
}
} // namespace extensions
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