app/src/main/java/com/stoutner/privacybrowser/helpers/ImportExportDatabaseHelper.java

   1 /*
   2  * Copyright © 2018-2020 Soren Stoutner <soren@stoutner.com>.
   3  *
   4  * This file is part of Privacy Browser <https://www.stoutner.com/privacy-browser>.
   5  *
   6  * Privacy Browser is free software: you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation, either version 3 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * Privacy Browser is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with Privacy Browser.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 package com.stoutner.privacybrowser.helpers;
  21
  22 import android.content.ContentValues;
  23 import android.content.Context;
  24 import android.content.SharedPreferences;
  25 import android.database.Cursor;
  26 import android.database.DatabaseUtils;
  27 import android.database.sqlite.SQLiteDatabase;
  28 import android.preference.PreferenceManager;
  29
  30 import com.stoutner.privacybrowser.R;
  31
  32 import java.io.File;
  33 import java.io.FileInputStream;
  34 import java.io.FileOutputStream;
  35 import java.io.InputStream;
  36 import java.io.OutputStream;
  37
  38 public class ImportExportDatabaseHelper {
  39     // Declare the public constants.
  40     public static final String EXPORT_SUCCESSFUL = "Export Successful";
  41     public static final String IMPORT_SUCCESSFUL = "Import Successful";
  42
  43     // Declare the class constants.
  44     private static final int SCHEMA_VERSION = 12;
  45     private static final String PREFERENCES_TABLE = "preferences";
  46
  47     // Declare the preferences constants.
  48     private static final String _ID = "_id";
  49     private static final String JAVASCRIPT = "javascript";
  50     private static final String FIRST_PARTY_COOKIES = "first_party_cookies";
  51     private static final String THIRD_PARTY_COOKIES = "third_party_cookies";
  52     private static final String DOM_STORAGE = "dom_storage";
  53     private static final String SAVE_FORM_DATA = "save_form_data";
  54     private static final String USER_AGENT = "user_agent";
  55     private static final String CUSTOM_USER_AGENT = "custom_user_agent";
  56     private static final String INCOGNITO_MODE = "incognito_mode";
  57     private static final String DO_NOT_TRACK = "do_not_track";
  58     private static final String ALLOW_SCREENSHOTS = "allow_screenshots";
  59     private static final String EASYLIST = "easylist";
  60     private static final String EASYPRIVACY = "easyprivacy";
  61     private static final String FANBOYS_ANNOYANCE_LIST = "fanboys_annoyance_list";
  62     private static final String FANBOYS_SOCIAL_BLOCKING_LIST = "fanboys_social_blocking_list";
  63     private static final String ULTRALIST = "ultralist";
  64     private static final String ULTRAPRIVACY = "ultraprivacy";
  65     private static final String BLOCK_ALL_THIRD_PARTY_REQUESTS = "block_all_third_party_requests";
  66     private static final String GOOGLE_ANALYTICS = "google_analytics";
  67     private static final String FACEBOOK_CLICK_IDS = "facebook_click_ids";
  68     private static final String TWITTER_AMP_REDIRECTS = "twitter_amp_redirects";
  69     private static final String SEARCH = "search";
  70     private static final String SEARCH_CUSTOM_URL = "search_custom_url";
  71     private static final String PROXY = "proxy";
  72     private static final String PROXY_CUSTOM_URL = "proxy_custom_url";
  73     private static final String FULL_SCREEN_BROWSING_MODE = "full_screen_browsing_mode";
  74     private static final String HIDE_APP_BAR = "hide_app_bar";
  75     private static final String CLEAR_EVERYTHING = "clear_everything";
  76     private static final String CLEAR_COOKIES = "clear_cookies";
  77     private static final String CLEAR_DOM_STORAGE = "clear_dom_storage";
  78     private static final String CLEAR_FORM_DATA = "clear_form_data";
  79     private static final String CLEAR_LOGCAT = "clear_logcat";
  80     private static final String CLEAR_CACHE = "clear_cache";
  81     private static final String HOMEPAGE = "homepage";
  82     private static final String DOWNLOAD_LOCATION = "download_location";
  83     private static final String DOWNLOAD_CUSTOM_LOCATION = "download_custom_location";
  84     private static final String FONT_SIZE = "font_size";
  85     private static final String OPEN_INTENTS_IN_NEW_TAB = "open_intents_in_new_tab";
  86     private static final String SWIPE_TO_REFRESH = "swipe_to_refresh";
  87     private static final String SCROLL_APP_BAR = "scroll_app_bar";
  88     private static final String DISPLAY_ADDITIONAL_APP_BAR_ICONS = "display_additional_app_bar_icons";
  89     private static final String APP_THEME = "app_theme";
  90     private static final String WEBVIEW_THEME = "webview_theme";
  91     private static final String WIDE_VIEWPORT = "wide_viewport";
  92     private static final String DISPLAY_WEBPAGE_IMAGES = "display_webpage_images";
  93
  94     public String exportUnencrypted(File exportFile, Context context) {
  95         try {
  96             // Delete the current file if it exists.
  97             if (exportFile.exists()) {
  98                 //noinspection ResultOfMethodCallIgnored
  99                 exportFile.delete();
 100             }
 101
 102             // Create the export database.
 103             SQLiteDatabase exportDatabase = SQLiteDatabase.openOrCreateDatabase(exportFile, null);
 104
 105             // Set the export database version number.
 106             exportDatabase.setVersion(SCHEMA_VERSION);
 107
 108             // Create the export database domains table.
 109             exportDatabase.execSQL(DomainsDatabaseHelper.CREATE_DOMAINS_TABLE);
 110
 111
 112             // Create the export database bookmarks table.
 113             exportDatabase.execSQL(BookmarksDatabaseHelper.CREATE_BOOKMARKS_TABLE);
 114
 115             // Open the bookmarks database.  The `0` specifies the database version, but that is ignored and set instead using a constant in `BookmarksDatabaseHelper`.
 116             BookmarksDatabaseHelper bookmarksDatabaseHelper = new BookmarksDatabaseHelper(context, null, null, 0);
 117
 118             // Get a full bookmarks cursor.
 119             Cursor bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarks();
 120
 121             // Move to the first bookmark.
 122             bookmarksCursor.moveToFirst();
 123
 124             // Copy the data from the bookmarks cursor into the export database.
 125             for (int i = 0; i < bookmarksCursor.getCount(); i++) {
 126                 // Extract the record from the cursor and store the data in a ContentValues.
 127                 ContentValues bookmarksContentValues = new ContentValues();
 128                 bookmarksContentValues.put(BookmarksDatabaseHelper.BOOKMARK_NAME, bookmarksCursor.getString(bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_NAME)));
 129                 bookmarksContentValues.put(BookmarksDatabaseHelper.BOOKMARK_URL, bookmarksCursor.getString(bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_URL)));
 130                 bookmarksContentValues.put(BookmarksDatabaseHelper.PARENT_FOLDER, bookmarksCursor.getString(bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.PARENT_FOLDER)));
 131                 bookmarksContentValues.put(BookmarksDatabaseHelper.DISPLAY_ORDER, bookmarksCursor.getInt(bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.DISPLAY_ORDER)));
 132                 bookmarksContentValues.put(BookmarksDatabaseHelper.IS_FOLDER, bookmarksCursor.getInt(bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.IS_FOLDER)));
 133                 bookmarksContentValues.put(BookmarksDatabaseHelper.FAVORITE_ICON, bookmarksCursor.getBlob(bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.FAVORITE_ICON)));
 134
 135                 // Insert the record into the export database.
 136                 exportDatabase.insert(BookmarksDatabaseHelper.BOOKMARKS_TABLE, null, bookmarksContentValues);
 137
 138                 // Advance to the next record.
 139                 bookmarksCursor.moveToNext();
 140             }
 141
 142             // Close the bookmarks database.
 143             bookmarksCursor.close();
 144             bookmarksDatabaseHelper.close();
 145
 146
 147             // Open the domains database.  The `0` specifies the database version, but that is ignored and set instead using a constant in `DomainsDatabaseHelper`.
 148             DomainsDatabaseHelper domainsDatabaseHelper = new DomainsDatabaseHelper(context, null, null, 0);
 149
 150             // Get a full domains database cursor.
 151             Cursor domainsCursor = domainsDatabaseHelper.getCompleteCursorOrderedByDomain();
 152
 153             // Move to the first domain.
 154             domainsCursor.moveToFirst();
 155
 156             // Copy the data from the domains cursor into the export database.
 157             for (int i = 0; i < domainsCursor.getCount(); i++) {
 158                 // Extract the record from the cursor and store the data in a ContentValues.
 159                 ContentValues domainsContentValues = new ContentValues();
 160                 domainsContentValues.put(DomainsDatabaseHelper.DOMAIN_NAME, domainsCursor.getString(domainsCursor.getColumnIndex(DomainsDatabaseHelper.DOMAIN_NAME)));
 161                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_JAVASCRIPT, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_JAVASCRIPT)));
 162                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_FIRST_PARTY_COOKIES, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_FIRST_PARTY_COOKIES)));
 163                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_THIRD_PARTY_COOKIES, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_THIRD_PARTY_COOKIES)));
 164                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_DOM_STORAGE, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_DOM_STORAGE)));
 165                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_FORM_DATA, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_FORM_DATA)));
 166                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_EASYLIST, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_EASYLIST)));
 167                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_EASYPRIVACY, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_EASYPRIVACY)));
 168                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_FANBOYS_ANNOYANCE_LIST, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_FANBOYS_ANNOYANCE_LIST)));
 169                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_FANBOYS_SOCIAL_BLOCKING_LIST, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_FANBOYS_SOCIAL_BLOCKING_LIST)));
 170                 domainsContentValues.put(DomainsDatabaseHelper.ULTRALIST, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.ULTRALIST)));
 171                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_ULTRAPRIVACY, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_ULTRAPRIVACY)));
 172                 domainsContentValues.put(DomainsDatabaseHelper.BLOCK_ALL_THIRD_PARTY_REQUESTS, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.BLOCK_ALL_THIRD_PARTY_REQUESTS)));
 173                 domainsContentValues.put(DomainsDatabaseHelper.USER_AGENT, domainsCursor.getString(domainsCursor.getColumnIndex(DomainsDatabaseHelper.USER_AGENT)));
 174                 domainsContentValues.put(DomainsDatabaseHelper.FONT_SIZE, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.FONT_SIZE)));
 175                 domainsContentValues.put(DomainsDatabaseHelper.SWIPE_TO_REFRESH, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.SWIPE_TO_REFRESH)));
 176                 domainsContentValues.put(DomainsDatabaseHelper.WEBVIEW_THEME, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.WEBVIEW_THEME)));
 177                 domainsContentValues.put(DomainsDatabaseHelper.WIDE_VIEWPORT, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.WIDE_VIEWPORT)));
 178                 domainsContentValues.put(DomainsDatabaseHelper.DISPLAY_IMAGES, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.DISPLAY_IMAGES)));
 179                 domainsContentValues.put(DomainsDatabaseHelper.PINNED_SSL_CERTIFICATE, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.PINNED_SSL_CERTIFICATE)));
 180                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_TO_COMMON_NAME, domainsCursor.getString(domainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_TO_COMMON_NAME)));
 181                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_TO_ORGANIZATION, domainsCursor.getString(domainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_TO_ORGANIZATION)));
 182                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_TO_ORGANIZATIONAL_UNIT, domainsCursor.getString(domainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_TO_ORGANIZATIONAL_UNIT)));
 183                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_BY_COMMON_NAME, domainsCursor.getString(domainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_BY_COMMON_NAME)));
 184                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_BY_ORGANIZATION, domainsCursor.getString(domainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_BY_ORGANIZATION)));
 185                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_BY_ORGANIZATIONAL_UNIT, domainsCursor.getString(domainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_BY_ORGANIZATIONAL_UNIT)));
 186                 domainsContentValues.put(DomainsDatabaseHelper.SSL_START_DATE, domainsCursor.getLong(domainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_START_DATE)));
 187                 domainsContentValues.put(DomainsDatabaseHelper.SSL_END_DATE, domainsCursor.getLong(domainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_END_DATE)));
 188                 domainsContentValues.put(DomainsDatabaseHelper.PINNED_IP_ADDRESSES, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.PINNED_IP_ADDRESSES)));
 189                 domainsContentValues.put(DomainsDatabaseHelper.IP_ADDRESSES, domainsCursor.getString(domainsCursor.getColumnIndex(DomainsDatabaseHelper.IP_ADDRESSES)));
 190
 191                 // Insert the record into the export database.
 192                 exportDatabase.insert(DomainsDatabaseHelper.DOMAINS_TABLE, null, domainsContentValues);
 193
 194                 // Advance to the next record.
 195                 domainsCursor.moveToNext();
 196             }
 197
 198             // Close the domains database.
 199             domainsCursor.close();
 200             domainsDatabaseHelper.close();
 201
 202
 203             // Prepare the preferences table SQL creation string.
 204             String CREATE_PREFERENCES_TABLE = "CREATE TABLE " + PREFERENCES_TABLE + " (" +
 205                     _ID + " INTEGER PRIMARY KEY, " +
 206                     JAVASCRIPT + " BOOLEAN, " +
 207                     FIRST_PARTY_COOKIES + " BOOLEAN, " +
 208                     THIRD_PARTY_COOKIES + " BOOLEAN, " +
 209                     DOM_STORAGE + " BOOLEAN, " +
 210                     SAVE_FORM_DATA + " BOOLEAN, " +
 211                     USER_AGENT + " TEXT, " +
 212                     CUSTOM_USER_AGENT + " TEXT, " +
 213                     INCOGNITO_MODE + " BOOLEAN, " +
 214                     DO_NOT_TRACK + " BOOLEAN, " +
 215                     ALLOW_SCREENSHOTS + " BOOLEAN, " +
 216                     EASYLIST + " BOOLEAN, " +
 217                     EASYPRIVACY + " BOOLEAN, " +
 218                     FANBOYS_ANNOYANCE_LIST + " BOOLEAN, " +
 219                     FANBOYS_SOCIAL_BLOCKING_LIST + " BOOLEAN, " +
 220                     ULTRALIST + " BOOLEAN, " +
 221                     ULTRAPRIVACY + " BOOLEAN, " +
 222                     BLOCK_ALL_THIRD_PARTY_REQUESTS + " BOOLEAN, " +
 223                     GOOGLE_ANALYTICS + " BOOLEAN, " +
 224                     FACEBOOK_CLICK_IDS + " BOOLEAN, " +
 225                     TWITTER_AMP_REDIRECTS + " BOOLEAN, " +
 226                     SEARCH + " TEXT, " +
 227                     SEARCH_CUSTOM_URL + " TEXT, " +
 228                     PROXY + " TEXT, " +
 229                     PROXY_CUSTOM_URL + " TEXT, " +
 230                     FULL_SCREEN_BROWSING_MODE + " BOOLEAN, " +
 231                     HIDE_APP_BAR + " BOOLEAN, " +
 232                     CLEAR_EVERYTHING + " BOOLEAN, " +
 233                     CLEAR_COOKIES + " BOOLEAN, " +
 234                     CLEAR_DOM_STORAGE + " BOOLEAN, " +
 235                     CLEAR_FORM_DATA + " BOOLEAN, " +
 236                     CLEAR_LOGCAT + " BOOLEAN, " +
 237                     CLEAR_CACHE + " BOOLEAN, " +
 238                     HOMEPAGE + " TEXT, " +
 239                     DOWNLOAD_LOCATION + " TEXT, " +
 240                     DOWNLOAD_CUSTOM_LOCATION + " TEXT, " +
 241                     FONT_SIZE + " TEXT, " +
 242                     OPEN_INTENTS_IN_NEW_TAB + " BOOLEAN, " +
 243                     SWIPE_TO_REFRESH + " BOOLEAN, " +
 244                     SCROLL_APP_BAR + " BOOLEAN, " +
 245                     DISPLAY_ADDITIONAL_APP_BAR_ICONS + " BOOLEAN, " +
 246                     APP_THEME + " TEXT, " +
 247                     WEBVIEW_THEME + " TEXT, " +
 248                     WIDE_VIEWPORT + " BOOLEAN, " +
 249                     DISPLAY_WEBPAGE_IMAGES + " BOOLEAN)";
 250
 251             // Create the export database preferences table.
 252             exportDatabase.execSQL(CREATE_PREFERENCES_TABLE);
 253
 254             // Get a handle for the shared preference.
 255             SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(context);
 256
 257             // Create a ContentValues with the preferences information.
 258             ContentValues preferencesContentValues = new ContentValues();
 259             preferencesContentValues.put(JAVASCRIPT, sharedPreferences.getBoolean(JAVASCRIPT, false));
 260             preferencesContentValues.put(FIRST_PARTY_COOKIES, sharedPreferences.getBoolean(FIRST_PARTY_COOKIES, false));
 261             preferencesContentValues.put(THIRD_PARTY_COOKIES, sharedPreferences.getBoolean(THIRD_PARTY_COOKIES, false));
 262             preferencesContentValues.put(DOM_STORAGE, sharedPreferences.getBoolean(DOM_STORAGE, false));
 263             preferencesContentValues.put(SAVE_FORM_DATA, sharedPreferences.getBoolean(SAVE_FORM_DATA, false));  // Save form data can be removed once the minimum API >= 26.
 264             preferencesContentValues.put(USER_AGENT, sharedPreferences.getString(USER_AGENT, context.getString(R.string.user_agent_default_value)));
 265             preferencesContentValues.put(CUSTOM_USER_AGENT, sharedPreferences.getString(CUSTOM_USER_AGENT, context.getString(R.string.custom_user_agent_default_value)));
 266             preferencesContentValues.put(INCOGNITO_MODE, sharedPreferences.getBoolean(INCOGNITO_MODE, false));
 267             preferencesContentValues.put(DO_NOT_TRACK, sharedPreferences.getBoolean(DO_NOT_TRACK, false));
 268             preferencesContentValues.put(ALLOW_SCREENSHOTS, sharedPreferences.getBoolean(ALLOW_SCREENSHOTS, false));
 269             preferencesContentValues.put(EASYLIST, sharedPreferences.getBoolean(EASYLIST, true));
 270             preferencesContentValues.put(EASYPRIVACY, sharedPreferences.getBoolean(EASYPRIVACY, true));
 271             preferencesContentValues.put(FANBOYS_ANNOYANCE_LIST, sharedPreferences.getBoolean(FANBOYS_ANNOYANCE_LIST, true));
 272             preferencesContentValues.put(FANBOYS_SOCIAL_BLOCKING_LIST, sharedPreferences.getBoolean(FANBOYS_SOCIAL_BLOCKING_LIST, true));
 273             preferencesContentValues.put(ULTRALIST, sharedPreferences.getBoolean(ULTRALIST, true));
 274             preferencesContentValues.put(ULTRAPRIVACY, sharedPreferences.getBoolean(ULTRAPRIVACY, true));
 275             preferencesContentValues.put(BLOCK_ALL_THIRD_PARTY_REQUESTS, sharedPreferences.getBoolean(BLOCK_ALL_THIRD_PARTY_REQUESTS, false));
 276             preferencesContentValues.put(GOOGLE_ANALYTICS, sharedPreferences.getBoolean(GOOGLE_ANALYTICS, true));
 277             preferencesContentValues.put(FACEBOOK_CLICK_IDS, sharedPreferences.getBoolean(FACEBOOK_CLICK_IDS, true));
 278             preferencesContentValues.put(TWITTER_AMP_REDIRECTS, sharedPreferences.getBoolean(TWITTER_AMP_REDIRECTS, true));
 279             preferencesContentValues.put(SEARCH, sharedPreferences.getString(SEARCH, context.getString(R.string.search_default_value)));
 280             preferencesContentValues.put(SEARCH_CUSTOM_URL, sharedPreferences.getString(SEARCH_CUSTOM_URL, context.getString(R.string.search_custom_url_default_value)));
 281             preferencesContentValues.put(PROXY, sharedPreferences.getString(PROXY, context.getString(R.string.proxy_default_value)));
 282             preferencesContentValues.put(PROXY_CUSTOM_URL, sharedPreferences.getString(PROXY_CUSTOM_URL, context.getString(R.string.proxy_custom_url_default_value)));
 283             preferencesContentValues.put(FULL_SCREEN_BROWSING_MODE, sharedPreferences.getBoolean(FULL_SCREEN_BROWSING_MODE, false));
 284             preferencesContentValues.put(HIDE_APP_BAR, sharedPreferences.getBoolean(HIDE_APP_BAR, true));
 285             preferencesContentValues.put(CLEAR_EVERYTHING, sharedPreferences.getBoolean(CLEAR_EVERYTHING, true));
 286             preferencesContentValues.put(CLEAR_COOKIES, sharedPreferences.getBoolean(CLEAR_COOKIES, true));
 287             preferencesContentValues.put(CLEAR_DOM_STORAGE, sharedPreferences.getBoolean(CLEAR_DOM_STORAGE, true));
 288             preferencesContentValues.put(CLEAR_FORM_DATA, sharedPreferences.getBoolean(CLEAR_FORM_DATA, true));  // Clear form data can be removed once the minimum API >= 26.
 289             preferencesContentValues.put(CLEAR_LOGCAT, sharedPreferences.getBoolean(CLEAR_LOGCAT, true));
 290             preferencesContentValues.put(CLEAR_CACHE, sharedPreferences.getBoolean(CLEAR_CACHE, true));
 291             preferencesContentValues.put(HOMEPAGE, sharedPreferences.getString(HOMEPAGE, context.getString(R.string.homepage_default_value)));
 292             preferencesContentValues.put(DOWNLOAD_LOCATION, sharedPreferences.getString(DOWNLOAD_LOCATION, context.getString(R.string.download_location_default_value)));
 293             preferencesContentValues.put(DOWNLOAD_CUSTOM_LOCATION, sharedPreferences.getString(DOWNLOAD_CUSTOM_LOCATION, context.getString(R.string.download_custom_location_default_value)));
 294             preferencesContentValues.put(FONT_SIZE, sharedPreferences.getString(FONT_SIZE, context.getString(R.string.font_size_default_value)));
 295             preferencesContentValues.put(OPEN_INTENTS_IN_NEW_TAB, sharedPreferences.getBoolean(OPEN_INTENTS_IN_NEW_TAB, true));
 296             preferencesContentValues.put(SWIPE_TO_REFRESH, sharedPreferences.getBoolean(SWIPE_TO_REFRESH, true));
 297             preferencesContentValues.put(SCROLL_APP_BAR, sharedPreferences.getBoolean(SCROLL_APP_BAR, true));
 298             preferencesContentValues.put(DISPLAY_ADDITIONAL_APP_BAR_ICONS, sharedPreferences.getBoolean(DISPLAY_ADDITIONAL_APP_BAR_ICONS, false));
 299             preferencesContentValues.put(APP_THEME, sharedPreferences.getString(APP_THEME, context.getString(R.string.app_theme_default_value)));
 300             preferencesContentValues.put(WEBVIEW_THEME, sharedPreferences.getString(WEBVIEW_THEME, context.getString(R.string.webview_theme_default_value)));
 301             preferencesContentValues.put(WIDE_VIEWPORT, sharedPreferences.getBoolean(WIDE_VIEWPORT, true));
 302             preferencesContentValues.put(DISPLAY_WEBPAGE_IMAGES, sharedPreferences.getBoolean(DISPLAY_WEBPAGE_IMAGES, true));
 303
 304             // Insert the preferences into the export database.
 305             exportDatabase.insert(PREFERENCES_TABLE, null, preferencesContentValues);
 306
 307             // Close the export database.
 308             exportDatabase.close();
 309
 310             // Convert the database file to a string.
 311             String exportFileString = exportFile.toString();
 312
 313             // Create strings for the temporary database files.
 314             String journalFileString = exportFileString + "-journal";
 315
 316             // Get `Files` for the temporary database files.
 317             File journalFile = new File(journalFileString);
 318
 319             // Delete the Journal file if it exists.
 320             if (journalFile.exists()) {
 321                 //noinspection ResultOfMethodCallIgnored
 322                 journalFile.delete();
 323             }
 324
 325             // Export successful.
 326             return EXPORT_SUCCESSFUL;
 327         } catch (Exception exception) {
 328             // Return the export error.
 329             return exception.toString();
 330         }
 331     }
 332
 333     public String importUnencrypted(File importFile, Context context){
 334         try {
 335             // Create a temporary import file string.
 336             String temporaryImportFileString = context.getCacheDir() + "/" + "temporary_import_file";
 337
 338             // Get a handle for a temporary import file.
 339             File temporaryImportFile = new File(temporaryImportFileString);
 340
 341             // Delete the temporary import file if it already exists.
 342             if (temporaryImportFile.exists()) {
 343                 //noinspection ResultOfMethodCallIgnored
 344                 temporaryImportFile.delete();
 345             }
 346
 347             // Create input and output streams.
 348             InputStream importFileInputStream = new FileInputStream(importFile);
 349             OutputStream temporaryImportFileOutputStream = new FileOutputStream(temporaryImportFile);
 350
 351             // Create a byte array.
 352             byte[] transferByteArray = new byte[1024];
 353
 354             // Create an integer to track the number of bytes read.
 355             int bytesRead;
 356
 357             // Copy the import file to the temporary import file.  Once the minimum API >= 26 `Files.copy` can be used instead.
 358             while ((bytesRead = importFileInputStream.read(transferByteArray)) > 0) {
 359                 temporaryImportFileOutputStream.write(transferByteArray, 0, bytesRead);
 360             }
 361
 362             // Close the file streams.
 363             importFileInputStream.close();
 364             temporaryImportFileOutputStream.close();
 365
 366
 367             // Get a handle for the shared preference.
 368             SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(context);
 369
 370             // Open the import database.  Once the minimum API >= 27 the file can be opened directly without using the string.
 371             SQLiteDatabase importDatabase = SQLiteDatabase.openDatabase(temporaryImportFileString, null, SQLiteDatabase.OPEN_READWRITE);
 372
 373             // Get the database version.
 374             int importDatabaseVersion = importDatabase.getVersion();
 375
 376             // Upgrade the database if needed.
 377             if (importDatabaseVersion < SCHEMA_VERSION) {
 378                 switch (importDatabaseVersion){
 379                     // Upgrade from schema version 1, Privacy Browser 2.13.
 380                     case 1:
 381                         // Previously this upgrade added `download_with_external_app` to the Preferences table.  But that is now removed in schema version 10.
 382
 383                     // Upgrade from schema version 2, Privacy Browser 2.14.
 384                     case 2:
 385                         // Once the SQLite version is >= 3.25.0 `ALTER TABLE RENAME COLUMN` can be used.  https://www.sqlite.org/lang_altertable.html  https://www.sqlite.org/changes.html
 386                         // https://developer.android.com/reference/android/database/sqlite/package-summary
 387                         // In the meantime, a new column must be created with the new name.  There is no need to delete the old column on the temporary import database.
 388
 389                         // Get a cursor with the current `default_font_size` value.
 390                         Cursor importDatabasePreferenceCursor = importDatabase.rawQuery("SELECT default_font_size FROM " + PREFERENCES_TABLE, null);
 391
 392                         // Move to the beginning fo the cursor.
 393                         importDatabasePreferenceCursor.moveToFirst();
 394
 395                         // Get the current value in `default_font_size`.
 396                         String fontSize = importDatabasePreferenceCursor.getString(importDatabasePreferenceCursor.getColumnIndex("default_font_size"));
 397
 398                         // SQL escape the font size.
 399                         fontSize = DatabaseUtils.sqlEscapeString(fontSize);
 400
 401                         // Close the cursor.
 402                         importDatabasePreferenceCursor.close();
 403
 404                         // Create the new font size column.
 405                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + FONT_SIZE + " TEXT");
 406
 407                         // Populate the preferences table with the current font size value.
 408                         importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + FONT_SIZE + " = '" + fontSize + "'");
 409
 410                     // Upgrade from schema version 3, Privacy Browser 2.15.
 411                     case 3:
 412                         // Add the Pinned IP Addresses columns to the domains table.
 413                         importDatabase.execSQL("ALTER TABLE " + DomainsDatabaseHelper.DOMAINS_TABLE + " ADD COLUMN " + DomainsDatabaseHelper.PINNED_IP_ADDRESSES + " BOOLEAN");
 414                         importDatabase.execSQL("ALTER TABLE " + DomainsDatabaseHelper.DOMAINS_TABLE + " ADD COLUMN " + DomainsDatabaseHelper.IP_ADDRESSES + " TEXT");
 415
 416                     // Upgrade from schema version 4, Privacy Browser 2.16.
 417                     case 4:
 418                         // Add the hide and scroll app bar columns to the preferences table.
 419                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + HIDE_APP_BAR + " BOOLEAN");
 420                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + SCROLL_APP_BAR + " BOOLEAN");
 421
 422                         // Get the current hide and scroll app bar settings.
 423                         boolean hideAppBar = sharedPreferences.getBoolean(HIDE_APP_BAR, true);
 424                         boolean scrollAppBar = sharedPreferences.getBoolean(SCROLL_APP_BAR, true);
 425
 426                         // Populate the preferences table with the current app bar values.
 427                         if (hideAppBar) {
 428                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + HIDE_APP_BAR + " = " + 1);
 429                         } else {
 430                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + HIDE_APP_BAR + " = " + 0);
 431                         }
 432
 433                         if (scrollAppBar) {
 434                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + SCROLL_APP_BAR + " = " + 1);
 435                         } else {
 436                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + SCROLL_APP_BAR + " = " + 0);
 437                         }
 438
 439                     // Upgrade from schema version 5, Privacy Browser 2.17.
 440                     case 5:
 441                         // Add the open intents in new tab column to the preferences table.
 442                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + OPEN_INTENTS_IN_NEW_TAB + " BOOLEAN");
 443
 444                         // Get the current open intents in new tab preference.
 445                         boolean openIntentsInNewTab = sharedPreferences.getBoolean(OPEN_INTENTS_IN_NEW_TAB, true);
 446
 447                         // Populate the preferences table with the current open intents value.
 448                         if (openIntentsInNewTab) {
 449                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + OPEN_INTENTS_IN_NEW_TAB + " = " + 1);
 450                         } else {
 451                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + OPEN_INTENTS_IN_NEW_TAB + " = " + 0);
 452                         }
 453
 454                     // Upgrade from schema version 6, Privacy Browser 3.0.
 455                     case 6:
 456                         // Add the wide viewport column to the domains table.
 457                         importDatabase.execSQL("ALTER TABLE " + DomainsDatabaseHelper.DOMAINS_TABLE + " ADD COLUMN " + DomainsDatabaseHelper.WIDE_VIEWPORT + " INTEGER");
 458
 459                         // Add the Google Analytics, Facebook Click IDs, Twitter AMP redirects, and wide viewport columns to the preferences table.
 460                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + GOOGLE_ANALYTICS + " BOOLEAN");
 461                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + FACEBOOK_CLICK_IDS + " BOOLEAN");
 462                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + TWITTER_AMP_REDIRECTS + " BOOLEAN");
 463                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + WIDE_VIEWPORT + " BOOLEAN");
 464
 465                         // Get the current preference values.
 466                         boolean googleAnalytics = sharedPreferences.getBoolean(GOOGLE_ANALYTICS, true);
 467                         boolean facebookClickIds = sharedPreferences.getBoolean(FACEBOOK_CLICK_IDS, true);
 468                         boolean twitterAmpRedirects = sharedPreferences.getBoolean(TWITTER_AMP_REDIRECTS, true);
 469                         boolean wideViewport = sharedPreferences.getBoolean(WIDE_VIEWPORT, true);
 470
 471                         // Populate the preferences with the current Google Analytics value.
 472                         if (googleAnalytics) {
 473                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + GOOGLE_ANALYTICS + " = " + 1);
 474                         } else {
 475                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + GOOGLE_ANALYTICS + " = " + 0);
 476                         }
 477
 478                         // Populate the preferences with the current Facebook Click IDs value.
 479                         if (facebookClickIds) {
 480                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + FACEBOOK_CLICK_IDS + " = " + 1);
 481                         } else {
 482                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + FACEBOOK_CLICK_IDS + " = " + 0);
 483                         }
 484
 485                         // Populate the preferences table with the current Twitter AMP redirects value.
 486                         if (twitterAmpRedirects) {
 487                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + TWITTER_AMP_REDIRECTS + " = " + 1);
 488                         } else {
 489                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + TWITTER_AMP_REDIRECTS + " = " + 0);
 490                         }
 491
 492                         // Populate the preferences table with the current wide viewport value.
 493                         if (wideViewport) {
 494                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + WIDE_VIEWPORT + " = " + 1);
 495                         } else {
 496                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + WIDE_VIEWPORT + " = " + 0);
 497                         }
 498
 499                     // Upgrade from schema version 7, Privacy Browser 3.1.
 500                     case 7:
 501                         // Add the UltraList column to the domains table.
 502                         importDatabase.execSQL("ALTER TABLE " + DomainsDatabaseHelper.DOMAINS_TABLE + " ADD COLUMN " + DomainsDatabaseHelper.ULTRALIST + " BOOLEAN");
 503
 504                         // Add the UltraList column to the preferences table.
 505                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + ULTRALIST + " BOOLEAN");
 506
 507                         // Get the current preference values.
 508                         boolean ultraList = sharedPreferences.getBoolean(ULTRALIST, true);
 509
 510                         // Populate the preferences tables with the current UltraList value.
 511                         if (ultraList) {
 512                             importDatabase.execSQL("UPDATE " + DomainsDatabaseHelper.DOMAINS_TABLE + " SET " + DomainsDatabaseHelper.ULTRALIST + " = " + 1);
 513                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + ULTRALIST + " = " + 1);
 514                         } else {
 515                             importDatabase.execSQL("UPDATE " + DomainsDatabaseHelper.DOMAINS_TABLE + " SET " + DomainsDatabaseHelper.ULTRALIST + " = " + 0);
 516                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + ULTRALIST + " = " + 0);
 517                         }
 518
 519                     // Upgrade from schema version 8, Privacy Browser 3.2.
 520                     case 8:
 521                         // Add the new proxy columns to the preferences table.
 522                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + PROXY + " TEXT");
 523                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + PROXY_CUSTOM_URL + " TEXT");
 524
 525                         // Get the current proxy values.
 526                         String proxy = sharedPreferences.getString(PROXY, context.getString(R.string.proxy_default_value));
 527                         String proxyCustomUrl = sharedPreferences.getString(PROXY_CUSTOM_URL, context.getString(R.string.proxy_custom_url_default_value));
 528
 529                         // SQL escape the proxy custom URL string.
 530                         proxyCustomUrl = DatabaseUtils.sqlEscapeString(proxyCustomUrl);
 531
 532                         // Populate the preferences table with the current proxy values. The proxy custom URL does not need to be surrounded by `'` because it was SLQ escaped above.
 533                         importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + PROXY + " = '" + proxy + "'");
 534                         importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + PROXY_CUSTOM_URL + " = " + proxyCustomUrl);
 535
 536                     // Upgrade from schema version 9, Privacy Browser 3.3.
 537                     case 9:
 538                         // Add the download location columns to the preferences table.
 539                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + DOWNLOAD_LOCATION + " TEXT");
 540                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + DOWNLOAD_CUSTOM_LOCATION + " TEXT");
 541
 542                         // Get the current download location values.
 543                         String downloadLocation = sharedPreferences.getString(DOWNLOAD_LOCATION, context.getString(R.string.download_location_default_value));
 544                         String downloadCustomLocation = sharedPreferences.getString(DOWNLOAD_CUSTOM_LOCATION, context.getString(R.string.download_custom_location_default_value));
 545
 546                         // Populate the preferences table with the current download location values.
 547                         importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + DOWNLOAD_LOCATION + " = '" + downloadLocation + "'");
 548                         importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + DOWNLOAD_CUSTOM_LOCATION + " = '" + downloadCustomLocation + "'");
 549
 550                     // Upgrade from schema version 10, Privacy Browser 3.4.
 551                     case 10:
 552                         // Add the app theme column to the preferences table.
 553                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + APP_THEME + " TEXT");
 554
 555                         // Get a cursor for the dark theme preference.
 556                         Cursor darkThemePreferencesCursor = importDatabase.rawQuery("SELECT dark_theme FROM " + PREFERENCES_TABLE, null);
 557
 558                         // Move to the first preference.
 559                         darkThemePreferencesCursor.moveToFirst();
 560
 561                         // Get the old dark theme value, which is in column 0.
 562                         int darkTheme = darkThemePreferencesCursor.getInt(0);
 563
 564                         // Close the dark theme preference cursor.
 565                         darkThemePreferencesCursor.close();
 566
 567                         // Populate the app theme according to the old dark theme preference.
 568                         if (darkTheme == 0) {  // A light theme was selected.
 569                             // Set the app theme to be the system default.
 570                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + APP_THEME + " = 'System default'");
 571                         } else {  // A dark theme was selected.
 572                             // Set the app theme to be dark.
 573                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + APP_THEME + " = 'Dark'");
 574                         }
 575
 576                         // Add the WebView theme to the domains table.  This defaults to 0, which is `System default`, so a separate step isn't needed to populate the database.
 577                         importDatabase.execSQL("ALTER TABLE " + DomainsDatabaseHelper.DOMAINS_TABLE + " ADD COLUMN " + DomainsDatabaseHelper.WEBVIEW_THEME + " INTEGER");
 578
 579                         // Add the WebView theme to the preferences table.
 580                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + WEBVIEW_THEME + " TEXT");
 581
 582                         // Get the WebView theme default value string.
 583                         String webViewThemeDefaultValue = context.getString(R.string.webview_theme_default_value);
 584
 585                         // Set the WebView theme in the preferences table to be the default.
 586                         importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + WEBVIEW_THEME + " = " + "'" + webViewThemeDefaultValue + "'");
 587
 588                     // Upgrade from schema version 11, Privacy Browser 3.5.
 589                     case 11:
 590                         // Add the clear logcat column to the preferences table.
 591                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + CLEAR_LOGCAT + " BOOLEAN");
 592
 593                         // Get the current clear logcat value.
 594                         boolean clearLogcat = sharedPreferences.getBoolean(CLEAR_LOGCAT, true);
 595
 596                         // Populate the preference table with the current clear logcat value.
 597                         if (clearLogcat) {
 598                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + CLEAR_LOGCAT + " = " + 1);
 599                         } else {
 600                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + CLEAR_LOGCAT + " = " + 0);
 601                         }
 602                 }
 603             }
 604
 605
 606             // Get a cursor for the bookmarks table.
 607             Cursor importBookmarksCursor = importDatabase.rawQuery("SELECT * FROM " + BookmarksDatabaseHelper.BOOKMARKS_TABLE, null);
 608
 609             // Delete the current bookmarks database.
 610             context.deleteDatabase(BookmarksDatabaseHelper.BOOKMARKS_DATABASE);
 611
 612             // Create a new bookmarks database.  The `0` specifies the database version, but that is ignored and set instead using a constant in `BookmarksDatabaseHelper`.
 613             BookmarksDatabaseHelper bookmarksDatabaseHelper = new BookmarksDatabaseHelper(context, null, null, 0);
 614
 615             // Move to the first bookmark.
 616             importBookmarksCursor.moveToFirst();
 617
 618             // Copy the data from the import bookmarks cursor into the bookmarks database.
 619             for (int i = 0; i < importBookmarksCursor.getCount(); i++) {
 620                 // Extract the record from the cursor and store the data in a ContentValues.
 621                 ContentValues bookmarksContentValues = new ContentValues();
 622                 bookmarksContentValues.put(BookmarksDatabaseHelper.BOOKMARK_NAME, importBookmarksCursor.getString(importBookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_NAME)));
 623                 bookmarksContentValues.put(BookmarksDatabaseHelper.BOOKMARK_URL, importBookmarksCursor.getString(importBookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_URL)));
 624                 bookmarksContentValues.put(BookmarksDatabaseHelper.PARENT_FOLDER, importBookmarksCursor.getString(importBookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.PARENT_FOLDER)));
 625                 bookmarksContentValues.put(BookmarksDatabaseHelper.DISPLAY_ORDER, importBookmarksCursor.getInt(importBookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.DISPLAY_ORDER)));
 626                 bookmarksContentValues.put(BookmarksDatabaseHelper.IS_FOLDER, importBookmarksCursor.getInt(importBookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.IS_FOLDER)));
 627                 bookmarksContentValues.put(BookmarksDatabaseHelper.FAVORITE_ICON, importBookmarksCursor.getBlob(importBookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.FAVORITE_ICON)));
 628
 629                 // Insert the record into the export database.
 630                 bookmarksDatabaseHelper.createBookmark(bookmarksContentValues);
 631
 632                 // Advance to the next record.
 633                 importBookmarksCursor.moveToNext();
 634             }
 635
 636             // Close the bookmarks cursor.
 637             importBookmarksCursor.close();
 638
 639             // Close the bookmarks database.
 640             bookmarksDatabaseHelper.close();
 641
 642
 643             // Get a cursor for the domains table.
 644             Cursor importDomainsCursor = importDatabase.rawQuery("SELECT * FROM " + DomainsDatabaseHelper.DOMAINS_TABLE + " ORDER BY " + DomainsDatabaseHelper.DOMAIN_NAME + " ASC", null);
 645
 646             // Delete the current domains database.
 647             context.deleteDatabase(DomainsDatabaseHelper.DOMAINS_DATABASE);
 648
 649             // Create a new domains database.  The `0` specifies the database version, but that is ignored and set instead using a constant in `DomainsDatabaseHelper`.
 650             DomainsDatabaseHelper domainsDatabaseHelper = new DomainsDatabaseHelper(context, null, null, 0);
 651
 652             // Move to the first domain.
 653             importDomainsCursor.moveToFirst();
 654
 655             // Copy the data from the import domains cursor into the domains database.
 656             for (int i = 0; i < importDomainsCursor.getCount(); i++) {
 657                 // Extract the record from the cursor and store the data in a ContentValues.
 658                 ContentValues domainsContentValues = new ContentValues();
 659                 domainsContentValues.put(DomainsDatabaseHelper.DOMAIN_NAME, importDomainsCursor.getString(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.DOMAIN_NAME)));
 660                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_JAVASCRIPT, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_JAVASCRIPT)));
 661                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_FIRST_PARTY_COOKIES, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_FIRST_PARTY_COOKIES)));
 662                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_THIRD_PARTY_COOKIES, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_THIRD_PARTY_COOKIES)));
 663                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_DOM_STORAGE, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_DOM_STORAGE)));
 664                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_FORM_DATA, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_FORM_DATA)));
 665                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_EASYLIST, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_EASYLIST)));
 666                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_EASYPRIVACY, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_EASYPRIVACY)));
 667                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_FANBOYS_ANNOYANCE_LIST,
 668                         importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_FANBOYS_ANNOYANCE_LIST)));
 669                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_FANBOYS_SOCIAL_BLOCKING_LIST,
 670                         importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_FANBOYS_SOCIAL_BLOCKING_LIST)));
 671                 domainsContentValues.put(DomainsDatabaseHelper.ULTRALIST, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.ULTRALIST)));
 672                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_ULTRAPRIVACY, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_ULTRAPRIVACY)));
 673                 domainsContentValues.put(DomainsDatabaseHelper.BLOCK_ALL_THIRD_PARTY_REQUESTS,
 674                         importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.BLOCK_ALL_THIRD_PARTY_REQUESTS)));
 675                 domainsContentValues.put(DomainsDatabaseHelper.USER_AGENT, importDomainsCursor.getString(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.USER_AGENT)));
 676                 domainsContentValues.put(DomainsDatabaseHelper.FONT_SIZE, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.FONT_SIZE)));
 677                 domainsContentValues.put(DomainsDatabaseHelper.SWIPE_TO_REFRESH, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.SWIPE_TO_REFRESH)));
 678                 domainsContentValues.put(DomainsDatabaseHelper.WEBVIEW_THEME, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.WEBVIEW_THEME)));
 679                 domainsContentValues.put(DomainsDatabaseHelper.WIDE_VIEWPORT, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.WIDE_VIEWPORT)));
 680                 domainsContentValues.put(DomainsDatabaseHelper.DISPLAY_IMAGES, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.DISPLAY_IMAGES)));
 681                 domainsContentValues.put(DomainsDatabaseHelper.PINNED_SSL_CERTIFICATE, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.PINNED_SSL_CERTIFICATE)));
 682                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_TO_COMMON_NAME, importDomainsCursor.getString(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_TO_COMMON_NAME)));
 683                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_TO_ORGANIZATION, importDomainsCursor.getString(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_TO_ORGANIZATION)));
 684                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_TO_ORGANIZATIONAL_UNIT,
 685                         importDomainsCursor.getString(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_TO_ORGANIZATIONAL_UNIT)));
 686                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_BY_COMMON_NAME, importDomainsCursor.getString(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_BY_COMMON_NAME)));
 687                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_BY_ORGANIZATION, importDomainsCursor.getString(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_BY_ORGANIZATION)));
 688                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_BY_ORGANIZATIONAL_UNIT,
 689                         importDomainsCursor.getString(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_BY_ORGANIZATIONAL_UNIT)));
 690                 domainsContentValues.put(DomainsDatabaseHelper.SSL_START_DATE, importDomainsCursor.getLong(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_START_DATE)));
 691                 domainsContentValues.put(DomainsDatabaseHelper.SSL_END_DATE, importDomainsCursor.getLong(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_END_DATE)));
 692                 domainsContentValues.put(DomainsDatabaseHelper.PINNED_IP_ADDRESSES, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.PINNED_IP_ADDRESSES)));
 693                 domainsContentValues.put(DomainsDatabaseHelper.IP_ADDRESSES, importDomainsCursor.getString(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.IP_ADDRESSES)));
 694
 695                 // Insert the record into the export database.
 696                 domainsDatabaseHelper.addDomain(domainsContentValues);
 697
 698                 // Advance to the next record.
 699                 importDomainsCursor.moveToNext();
 700             }
 701
 702             // Close the domains cursor.
 703             importDomainsCursor.close();
 704
 705             // Close the domains database.
 706             domainsDatabaseHelper.close();
 707
 708
 709             // Get a cursor for the preferences table.
 710             Cursor importPreferencesCursor = importDatabase.rawQuery("SELECT * FROM " + PREFERENCES_TABLE, null);
 711
 712             // Move to the first preference.
 713             importPreferencesCursor.moveToFirst();
 714
 715             // Import the preference data.
 716             sharedPreferences.edit()
 717                     .putBoolean(JAVASCRIPT, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(JAVASCRIPT)) == 1)
 718                     .putBoolean(FIRST_PARTY_COOKIES, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(FIRST_PARTY_COOKIES)) == 1)
 719                     .putBoolean(THIRD_PARTY_COOKIES, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(THIRD_PARTY_COOKIES)) == 1)
 720                     .putBoolean(DOM_STORAGE, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(DOM_STORAGE)) == 1)
 721                     // Save form data can be removed once the minimum API >= 26.
 722                     .putBoolean(SAVE_FORM_DATA, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(SAVE_FORM_DATA)) == 1)
 723                     .putString(USER_AGENT, importPreferencesCursor.getString(importPreferencesCursor.getColumnIndex(USER_AGENT)))
 724                     .putString(CUSTOM_USER_AGENT, importPreferencesCursor.getString(importPreferencesCursor.getColumnIndex(CUSTOM_USER_AGENT)))
 725                     .putBoolean(INCOGNITO_MODE, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(INCOGNITO_MODE)) == 1)
 726                     .putBoolean(DO_NOT_TRACK, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(DO_NOT_TRACK)) == 1)
 727                     .putBoolean(ALLOW_SCREENSHOTS, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(ALLOW_SCREENSHOTS)) == 1)
 728                     .putBoolean(EASYLIST, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(EASYLIST)) == 1)
 729                     .putBoolean(EASYPRIVACY, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(EASYPRIVACY)) == 1)
 730                     .putBoolean(FANBOYS_ANNOYANCE_LIST, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(FANBOYS_ANNOYANCE_LIST)) == 1)
 731                     .putBoolean(FANBOYS_SOCIAL_BLOCKING_LIST, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(FANBOYS_SOCIAL_BLOCKING_LIST)) == 1)
 732                     .putBoolean(ULTRALIST, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(ULTRALIST)) == 1)
 733                     .putBoolean(ULTRAPRIVACY, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(ULTRAPRIVACY)) == 1)
 734                     .putBoolean(BLOCK_ALL_THIRD_PARTY_REQUESTS, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(BLOCK_ALL_THIRD_PARTY_REQUESTS)) == 1)
 735                     .putBoolean(GOOGLE_ANALYTICS, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(GOOGLE_ANALYTICS)) == 1)
 736                     .putBoolean(FACEBOOK_CLICK_IDS, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(FACEBOOK_CLICK_IDS)) == 1)
 737                     .putBoolean(TWITTER_AMP_REDIRECTS, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(TWITTER_AMP_REDIRECTS)) == 1)
 738                     .putString(SEARCH, importPreferencesCursor.getString(importPreferencesCursor.getColumnIndex(SEARCH)))
 739                     .putString(SEARCH_CUSTOM_URL, importPreferencesCursor.getString(importPreferencesCursor.getColumnIndex(SEARCH_CUSTOM_URL)))
 740                     .putString(PROXY, importPreferencesCursor.getString(importPreferencesCursor.getColumnIndex(PROXY)))
 741                     .putString(PROXY_CUSTOM_URL, importPreferencesCursor.getString(importPreferencesCursor.getColumnIndex(PROXY_CUSTOM_URL)))
 742                     .putBoolean(FULL_SCREEN_BROWSING_MODE, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(FULL_SCREEN_BROWSING_MODE)) == 1)
 743                     .putBoolean(HIDE_APP_BAR, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(HIDE_APP_BAR)) == 1)
 744                     .putBoolean(CLEAR_EVERYTHING, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(CLEAR_EVERYTHING)) == 1)
 745                     .putBoolean(CLEAR_COOKIES, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(CLEAR_COOKIES)) == 1)
 746                     .putBoolean(CLEAR_DOM_STORAGE, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(CLEAR_DOM_STORAGE)) == 1)
 747                     // Clear form data can be removed once the minimum API >= 26.
 748                     .putBoolean(CLEAR_FORM_DATA, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(CLEAR_FORM_DATA)) == 1)
 749                     .putBoolean(CLEAR_LOGCAT, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(CLEAR_LOGCAT)) == 1)
 750                     .putBoolean(CLEAR_CACHE, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(CLEAR_CACHE)) == 1)
 751                     .putString(HOMEPAGE, importPreferencesCursor.getString(importPreferencesCursor.getColumnIndex(HOMEPAGE)))
 752                     .putString(DOWNLOAD_LOCATION, importPreferencesCursor.getString(importPreferencesCursor.getColumnIndex(DOWNLOAD_LOCATION)))
 753                     .putString(DOWNLOAD_CUSTOM_LOCATION, importPreferencesCursor.getString(importPreferencesCursor.getColumnIndex(DOWNLOAD_CUSTOM_LOCATION)))
 754                     .putString(FONT_SIZE, importPreferencesCursor.getString(importPreferencesCursor.getColumnIndex(FONT_SIZE)))
 755                     .putBoolean(OPEN_INTENTS_IN_NEW_TAB, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(OPEN_INTENTS_IN_NEW_TAB)) == 1)
 756                     .putBoolean(SWIPE_TO_REFRESH, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(SWIPE_TO_REFRESH)) == 1)
 757                     .putBoolean(SCROLL_APP_BAR, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(SCROLL_APP_BAR)) == 1)
 758                     .putBoolean(DISPLAY_ADDITIONAL_APP_BAR_ICONS, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(DISPLAY_ADDITIONAL_APP_BAR_ICONS)) == 1)
 759                     .putString(APP_THEME, importPreferencesCursor.getString(importPreferencesCursor.getColumnIndex(APP_THEME)))
 760                     .putString(WEBVIEW_THEME, importPreferencesCursor.getString(importPreferencesCursor.getColumnIndex(WEBVIEW_THEME)))
 761                     .putBoolean(WIDE_VIEWPORT, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(WIDE_VIEWPORT)) == 1)
 762                     .putBoolean(DISPLAY_WEBPAGE_IMAGES, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(DISPLAY_WEBPAGE_IMAGES)) == 1)
 763                     .apply();
 764
 765             // Close the preferences cursor.
 766             importPreferencesCursor.close();
 767
 768
 769             // Close the import database.
 770             importDatabase.close();
 771
 772             // Create strings for the temporary database files.
 773             String shmFileString = temporaryImportFileString + "-shm";
 774             String walFileString = temporaryImportFileString + "-wal";
 775             String journalFileString = temporaryImportFileString + "-journal";
 776
 777             // Get `Files` for the temporary database files.
 778             File shmFile = new File(shmFileString);
 779             File walFile = new File(walFileString);
 780             File journalFile = new File(journalFileString);
 781
 782             // Delete the Shared Memory file if it exists.
 783             if (shmFile.exists()) {
 784                 //noinspection ResultOfMethodCallIgnored
 785                 shmFile.delete();
 786             }
 787
 788             // Delete the Write Ahead Log file if it exists.
 789             if (walFile.exists()) {
 790                 //noinspection ResultOfMethodCallIgnored
 791                 walFile.delete();
 792             }
 793
 794             // Delete the Journal file if it exists.
 795             if (journalFile.exists()) {
 796                 //noinspection ResultOfMethodCallIgnored
 797                 journalFile.delete();
 798             }
 799
 800             // Delete the temporary import file.
 801             //noinspection ResultOfMethodCallIgnored
 802             temporaryImportFile.delete();
 803
 804             // Import successful.
 805             return IMPORT_SUCCESSFUL;
 806         } catch (Exception exception) {
 807             // Return the import error.
 808             return exception.toString();
 809         }
 810     }
 811 }