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 /* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-

  * This Source Code Form is subject to the terms of the Mozilla Public

  * License, v. 2.0. If a copy of the MPL was not distributed with this

  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

 package org.mozilla.gecko.updater;

 import org.mozilla.gecko.AppConstants;

 import org.mozilla.gecko.util.GeckoJarReader;

 import android.content.Context;

 import android.content.Intent;

 import android.content.pm.PackageManager;

 import android.content.pm.ApplicationInfo;

 import android.os.Build;

 import android.util.Log;

 import java.net.URL;

 public class UpdateServiceHelper {

     public static final String ACTION_REGISTER_FOR_UPDATES = AppConstants.ANDROID_PACKAGE_NAME + ".REGISTER_FOR_UPDATES";

     public static final String ACTION_UNREGISTER_FOR_UPDATES = AppConstants.ANDROID_PACKAGE_NAME + ".UNREGISTER_FOR_UPDATES";

     public static final String ACTION_CHECK_FOR_UPDATE = AppConstants.ANDROID_PACKAGE_NAME + ".CHECK_FOR_UPDATE";

     public static final String ACTION_CHECK_UPDATE_RESULT = AppConstants.ANDROID_PACKAGE_NAME + ".CHECK_UPDATE_RESULT";

     public static final String ACTION_DOWNLOAD_UPDATE = AppConstants.ANDROID_PACKAGE_NAME + ".DOWNLOAD_UPDATE";

     public static final String ACTION_APPLY_UPDATE = AppConstants.ANDROID_PACKAGE_NAME + ".APPLY_UPDATE";

     public static final String ACTION_CANCEL_DOWNLOAD = AppConstants.ANDROID_PACKAGE_NAME + ".CANCEL_DOWNLOAD";

     // Flags for ACTION_CHECK_FOR_UPDATE

     public static final int FLAG_FORCE_DOWNLOAD = 1;

     public static final int FLAG_OVERWRITE_EXISTING = 1 << 1;

     public static final int FLAG_REINSTALL = 1 << 2;

     public static final int FLAG_RETRY = 1 << 3;

     // Name of the Intent extra for the autodownload policy, used with ACTION_REGISTER_FOR_UPDATES

     public static final String EXTRA_AUTODOWNLOAD_NAME = "autodownload";

     // Values for EXTRA_AUTODOWNLOAD_NAME

     public static final int AUTODOWNLOAD_WIFI = 0;

     public static final int AUTODOWNLOAD_DISABLED = 1;

     public static final int AUTODOWNLOAD_ENABLED = 2;

     // Name of the Intent extra that holds the flags for ACTION_CHECK_FOR_UPDATE

     public static final String EXTRA_UPDATE_FLAGS_NAME = "updateFlags";

     // Name of the Intent extra that holds the APK path, used with ACTION_APPLY_UPDATE

     public static final String EXTRA_PACKAGE_PATH_NAME = "packagePath";

     private static final String LOGTAG = "UpdateServiceHelper";

     private static final String DEFAULT_UPDATE_LOCALE = "en-US";

     private static final String UPDATE_URL;

     static {

         final String pkgSpecial;

         if (AppConstants.MOZ_PKG_SPECIAL != null) {

             pkgSpecial = "-" + AppConstants.MOZ_PKG_SPECIAL;

         } else {

             pkgSpecial = "";

         }

         UPDATE_URL = "https://aus4.mozilla.org/update/4/" + AppConstants.MOZ_APP_BASENAME + "/" +

                      AppConstants.MOZ_APP_VERSION         +

                      "/%BUILDID%/Android_"                + AppConstants.MOZ_APP_ABI + pkgSpecial +

                      "/%LOCALE%/"                         + AppConstants.MOZ_UPDATE_CHANNEL +

                      "/%OS_VERSION%/default/default/"     + AppConstants.MOZILLA_VERSION +

                      "/update.xml";

     }

     public enum CheckUpdateResult {

         // Keep these in sync with mobile/android/chrome/content/about.xhtml

         NOT_AVAILABLE,

         AVAILABLE,

         DOWNLOADING,

         DOWNLOADED

     }

     public static URL getUpdateUrl(Context context, boolean force) {

         PackageManager pm = context.getPackageManager();

         String locale = null;

         try {

             ApplicationInfo info = pm.getApplicationInfo(AppConstants.ANDROID_PACKAGE_NAME, 0);

             String updateLocaleUrl = "jar:jar:file://" + info.sourceDir + "!/" + AppConstants.OMNIJAR_NAME + "!/update.locale";

             locale = GeckoJarReader.getText(updateLocaleUrl);

             if (locale != null)

                 locale = locale.trim();

             else

                 locale = DEFAULT_UPDATE_LOCALE;

         } catch (android.content.pm.PackageManager.NameNotFoundException e) {

             // Shouldn't really be possible, but fallback to default locale

             Log.i(LOGTAG, "Failed to read update locale file, falling back to " + DEFAULT_UPDATE_LOCALE);

             locale = DEFAULT_UPDATE_LOCALE;

         }

         String url = UPDATE_URL.replace("%LOCALE%", locale).

             replace("%OS_VERSION%", Build.VERSION.RELEASE).

             replace("%BUILDID%", force ? "0" : AppConstants.MOZ_APP_BUILDID);

         try {

             return new URL(url);

         } catch (java.net.MalformedURLException e) {

             Log.e(LOGTAG, "Failed to create update url: ", e);

             return null;

         }

     }

     public static boolean isUpdaterEnabled() {

         return AppConstants.MOZ_UPDATER;

     }

     public static void registerForUpdates(Context context, String policy) {

         if (policy == null)

             return;

         int intPolicy;

         if (policy.equals("wifi")) {

             intPolicy = AUTODOWNLOAD_WIFI;

         } else if (policy.equals("disabled")) {

             intPolicy = AUTODOWNLOAD_DISABLED;

         } else if (policy.equals("enabled")) {

             intPolicy = AUTODOWNLOAD_ENABLED;

         } else {

             Log.w(LOGTAG, "Unhandled autoupdate policy: " + policy);

             return;

         }

         registerForUpdates(context, intPolicy);

     }

     // 'policy' should one of AUTODOWNLOAD_WIFI, AUTODOWNLOAD_DISABLED, AUTODOWNLOAD_ENABLED

     public static void registerForUpdates(Context context, int policy) {

         if (!isUpdaterEnabled())

             return;

         Intent intent = new Intent(UpdateServiceHelper.ACTION_REGISTER_FOR_UPDATES, null, context, UpdateService.class);

         intent.putExtra(EXTRA_AUTODOWNLOAD_NAME, policy);

         context.startService(intent);

     }

 }