chrome/browser/content_settings/host_content_settings_map_factory.cc

// Copyright 2015 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/content_settings/host_content_settings_map_factory.h"

#include <utility>

#include "base/feature_list.h"
#include "build/build_config.h"
#include "build/buildflag.h"
#include "chrome/browser/content_settings/one_time_permission_provider.h"
#include "chrome/browser/permissions/one_time_permissions_tracker_factory.h"
#include "chrome/browser/profiles/off_the_record_profile_impl.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/profiles/profile_key.h"
#include "chrome/browser/profiles/profiles_state.h"
#include "chrome/browser/search_engines/template_url_service_factory.h"
#include "chrome/browser/supervised_user/supervised_user_settings_service_factory.h"
#include "chrome/common/buildflags.h"
#include "components/content_settings/core/browser/content_settings_pref_provider.h"
#include "components/content_settings/core/browser/host_content_settings_map.h"
#include "components/permissions/features.h"
#include "components/supervised_user/core/browser/supervised_user_content_settings_provider.h"
#include "components/supervised_user/core/browser/supervised_user_settings_service.h"
#include "content/public/browser/browser_thread.h"
#include "extensions/buildflags/buildflags.h"
#include "ui/webui/webui_allowlist_provider.h"

#if BUILDFLAG(ENABLE_EXTENSIONS)
#include "base/trace_event/trace_event.h"
#include "extensions/browser/api/content_settings/content_settings_custom_extension_provider.h"
#include "extensions/browser/api/content_settings/content_settings_service.h"
#endif

#if BUILDFLAG(IS_ANDROID)
#include "chrome/browser/flags/android/chrome_feature_list.h"
#include "chrome/browser/notifications/notification_channels_provider_android.h"
#include "chrome/browser/webapps/installable/installed_webapp_provider.h"
#endif  // BUILDFLAG(IS_ANDROID)

#if BUILDFLAG(ENABLE_SESSION_SERVICE)
#include "chrome/browser/sessions/exit_type_service_factory.h"
#endif

using content_settings::ProviderType;

HostContentSettingsMapFactory::HostContentSettingsMapFactory()
    : RefcountedProfileKeyedServiceFactory(
          "HostContentSettingsMap",
          ProfileSelections::Builder()
              .WithRegular(ProfileSelection::kOwnInstance)
              // TODO(crbug.com/40257657): Check if this service is needed in
              // Guest mode.
              .WithGuest(ProfileSelection::kOwnInstance)
              .Build()) {
  DependsOn(SupervisedUserSettingsServiceFactory::GetInstance());
#if BUILDFLAG(IS_ANDROID)
  DependsOn(TemplateURLServiceFactory::GetInstance());
#endif
  DependsOn(OneTimePermissionsTrackerFactory::GetInstance());
#if BUILDFLAG(ENABLE_EXTENSIONS)
  DependsOn(extensions::ContentSettingsService::GetFactoryInstance());
#endif
  // Used by way of ShouldRestoreOldSessionCookies().
#if BUILDFLAG(ENABLE_SESSION_SERVICE)
  DependsOn(ExitTypeServiceFactory::GetInstance());
#endif
}

HostContentSettingsMapFactory::~HostContentSettingsMapFactory() = default;

// static
HostContentSettingsMap* HostContentSettingsMapFactory::GetForProfile(
    content::BrowserContext* browser_context) {
  DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));

  return static_cast<HostContentSettingsMap*>(
      GetInstance()->GetServiceForBrowserContext(browser_context, true).get());
}

// static
HostContentSettingsMapFactory* HostContentSettingsMapFactory::GetInstance() {
  static base::NoDestructor<HostContentSettingsMapFactory> instance;
  return instance.get();
}

scoped_refptr<RefcountedKeyedService>
    HostContentSettingsMapFactory::BuildServiceInstanceFor(
    content::BrowserContext* context) const {
  DCHECK_CURRENTLY_ON(content::BrowserThread::UI);

  Profile* profile = static_cast<Profile*>(context);
  // extensions::ContentSettingsService::Get() needs the original profile.
  Profile* original_profile = profile->GetOriginalProfile();

  // In OffTheRecord mode, retrieve the host content settings map of the parent
  // profile in order to ensure the preferences have been migrated.
  // This is not required for guest sessions, since the parent profile of a
  // guest OTR profile is empty.
  if (profile->IsOffTheRecord() && !profile->IsGuestSession())
    GetForProfile(original_profile);

  scoped_refptr<HostContentSettingsMap> settings_map(new HostContentSettingsMap(
      profile->GetPrefs(),
      profile->IsOffTheRecord() || profile->IsGuestSession(),
      /*store_last_modified=*/true, profile->ShouldRestoreOldSessionCookies(),
      profiles::IsRegularUserProfile(profile)));

  auto allowlist_provider = std::make_unique<WebUIAllowlistProvider>(
      WebUIAllowlist::GetOrCreate(profile));
  settings_map->RegisterProvider(ProviderType::kWebuiAllowlistProvider,
                                 std::move(allowlist_provider));

#if BUILDFLAG(ENABLE_EXTENSIONS)
  // These must be registered before before the HostSettings are passed over to
  // the IOThread.  Simplest to do this on construction.
  settings_map->RegisterProvider(
      ProviderType::kCustomExtensionProvider,
      std::make_unique<content_settings::CustomExtensionProvider>(
          extensions::ContentSettingsService::Get(original_profile)
              ->content_settings_store(),
          // TODO(crbug.com/40199565): This is the only call site, so can we
          // remove this constructor parameter, or should this actually reflect
          // the case where profile->IsOffTheRecord() is true? And what is the
          // interaction with profile->IsGuestSession()?
          false));
#endif // BUILDFLAG(ENABLE_EXTENSIONS)
  supervised_user::SupervisedUserSettingsService* supervised_service =
      SupervisedUserSettingsServiceFactory::GetForKey(profile->GetProfileKey());
  // This may be null in testing.
  if (supervised_service) {
    std::unique_ptr<supervised_user::SupervisedUserContentSettingsProvider>
        supervised_provider(
            new supervised_user::SupervisedUserContentSettingsProvider(
                supervised_service));
    settings_map->RegisterProvider(ProviderType::kSupervisedProvider,
                                   std::move(supervised_provider));
  }

#if BUILDFLAG(IS_ANDROID)
  if (!profile->IsOffTheRecord()) {
    auto channels_provider =
        std::make_unique<NotificationChannelsProviderAndroid>(
            profile->GetPrefs());

    channels_provider->Initialize(
        settings_map->GetPrefProvider(),
        TemplateURLServiceFactory::GetForProfile(profile));

    settings_map->RegisterUserModifiableProvider(
        ProviderType::kNotificationAndroidProvider,
        std::move(channels_provider));

    auto webapp_provider = std::make_unique<InstalledWebappProvider>();
    settings_map->RegisterProvider(ProviderType::kInstalledWebappProvider,
                                   std::move(webapp_provider));
  }
#endif  // defined (OS_ANDROID)
  auto one_time_permission_provider =
      std::make_unique<OneTimePermissionProvider>(
          OneTimePermissionsTrackerFactory::GetForBrowserContext(context));

  settings_map->RegisterUserModifiableProvider(
      ProviderType::kOneTimePermissionProvider,
      std::move(one_time_permission_provider));
  return settings_map;
}