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