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

   1 /*
   2  * Copyright © 2018-2019 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.sqlite.SQLiteDatabase;
  27 import android.preference.PreferenceManager;
  28
  29 import com.stoutner.privacybrowser.R;
  30
  31 import java.io.File;
  32 import java.io.FileInputStream;
  33 import java.io.FileOutputStream;
  34 import java.io.InputStream;
  35 import java.io.OutputStream;
  36
  37 public class ImportExportDatabaseHelper {
  38     public static final String EXPORT_SUCCESSFUL = "Export Successful";
  39     public static final String IMPORT_SUCCESSFUL = "Import Successful";
  40
  41     private static final int SCHEMA_VERSION = 9;
  42     private static final String PREFERENCES_TABLE = "preferences";
  43
  44     // The preferences constants.
  45     private static final String _ID = "_id";
  46     private static final String JAVASCRIPT = "javascript";
  47     private static final String FIRST_PARTY_COOKIES = "first_party_cookies";
  48     private static final String THIRD_PARTY_COOKIES = "third_party_cookies";
  49     private static final String DOM_STORAGE = "dom_storage";
  50     private static final String SAVE_FORM_DATA = "save_form_data";
  51     private static final String USER_AGENT = "user_agent";
  52     private static final String CUSTOM_USER_AGENT = "custom_user_agent";
  53     private static final String INCOGNITO_MODE = "incognito_mode";
  54     private static final String DO_NOT_TRACK = "do_not_track";
  55     private static final String ALLOW_SCREENSHOTS = "allow_screenshots";
  56     private static final String EASYLIST = "easylist";
  57     private static final String EASYPRIVACY = "easyprivacy";
  58     private static final String FANBOYS_ANNOYANCE_LIST = "fanboys_annoyance_list";
  59     private static final String FANBOYS_SOCIAL_BLOCKING_LIST = "fanboys_social_blocking_list";
  60     private static final String ULTRALIST = "ultralist";
  61     private static final String ULTRAPRIVACY = "ultraprivacy";
  62     private static final String BLOCK_ALL_THIRD_PARTY_REQUESTS = "block_all_third_party_requests";
  63     private static final String GOOGLE_ANALYTICS = "google_analytics";
  64     private static final String FACEBOOK_CLICK_IDS = "facebook_click_ids";
  65     private static final String TWITTER_AMP_REDIRECTS = "twitter_amp_redirects";
  66     private static final String SEARCH = "search";
  67     private static final String SEARCH_CUSTOM_URL = "search_custom_url";
  68     private static final String PROXY = "proxy";
  69     private static final String PROXY_CUSTOM_HOST = "proxy_custom_host";
  70     private static final String PROXY_CUSTOM_PORT = "proxy_custom_port";
  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 DOWNLOAD_WITH_EXTERNAL_APP = "download_with_external_app";
  85     private static final String DARK_THEME = "dark_theme";
  86     private static final String NIGHT_MODE = "night_mode";
  87     private static final String WIDE_VIEWPORT = "wide_viewport";
  88     private static final String DISPLAY_WEBPAGE_IMAGES = "display_webpage_images";
  89
  90     public String exportUnencrypted(File exportFile, Context context) {
  91         try {
  92             // Delete the current file if it exists.
  93             if (exportFile.exists()) {
  94                 //noinspection ResultOfMethodCallIgnored
  95                 exportFile.delete();
  96             }
  97
  98             // Create the export database.
  99             SQLiteDatabase exportDatabase = SQLiteDatabase.openOrCreateDatabase(exportFile, null);
 100
 101             // Set the export database version number.
 102             exportDatabase.setVersion(SCHEMA_VERSION);
 103
 104             // Create the export database domains table.
 105             exportDatabase.execSQL(DomainsDatabaseHelper.CREATE_DOMAINS_TABLE);
 106
 107             // Open the domains database.  The `0` specifies the database version, but that is ignored and set instead using a constant in `DomainsDatabaseHelper`.
 108             DomainsDatabaseHelper domainsDatabaseHelper = new DomainsDatabaseHelper(context, null, null, 0);
 109
 110             // Get a full domains database cursor.
 111             Cursor domainsCursor = domainsDatabaseHelper.getCompleteCursorOrderedByDomain();
 112
 113             // Move to the first domain.
 114             domainsCursor.moveToFirst();
 115
 116             // Copy the data from the domains cursor into the export database.
 117             for (int i = 0; i < domainsCursor.getCount(); i++) {
 118                 // Extract the record from the cursor and store the data in a ContentValues.
 119                 ContentValues domainsContentValues = new ContentValues();
 120                 domainsContentValues.put(DomainsDatabaseHelper.DOMAIN_NAME, domainsCursor.getString(domainsCursor.getColumnIndex(DomainsDatabaseHelper.DOMAIN_NAME)));
 121                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_JAVASCRIPT, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_JAVASCRIPT)));
 122                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_FIRST_PARTY_COOKIES, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_FIRST_PARTY_COOKIES)));
 123                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_THIRD_PARTY_COOKIES, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_THIRD_PARTY_COOKIES)));
 124                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_DOM_STORAGE, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_DOM_STORAGE)));
 125                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_FORM_DATA, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_FORM_DATA)));
 126                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_EASYLIST, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_EASYLIST)));
 127                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_EASYPRIVACY, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_EASYPRIVACY)));
 128                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_FANBOYS_ANNOYANCE_LIST, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_FANBOYS_ANNOYANCE_LIST)));
 129                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_FANBOYS_SOCIAL_BLOCKING_LIST, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_FANBOYS_SOCIAL_BLOCKING_LIST)));
 130                 domainsContentValues.put(DomainsDatabaseHelper.ULTRALIST, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.ULTRALIST)));
 131                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_ULTRAPRIVACY, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_ULTRAPRIVACY)));
 132                 domainsContentValues.put(DomainsDatabaseHelper.BLOCK_ALL_THIRD_PARTY_REQUESTS, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.BLOCK_ALL_THIRD_PARTY_REQUESTS)));
 133                 domainsContentValues.put(DomainsDatabaseHelper.USER_AGENT, domainsCursor.getString(domainsCursor.getColumnIndex(DomainsDatabaseHelper.USER_AGENT)));
 134                 domainsContentValues.put(DomainsDatabaseHelper.FONT_SIZE, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.FONT_SIZE)));
 135                 domainsContentValues.put(DomainsDatabaseHelper.SWIPE_TO_REFRESH, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.SWIPE_TO_REFRESH)));
 136                 domainsContentValues.put(DomainsDatabaseHelper.NIGHT_MODE, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.NIGHT_MODE)));
 137                 domainsContentValues.put(DomainsDatabaseHelper.WIDE_VIEWPORT, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.WIDE_VIEWPORT)));
 138                 domainsContentValues.put(DomainsDatabaseHelper.DISPLAY_IMAGES, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.DISPLAY_IMAGES)));
 139                 domainsContentValues.put(DomainsDatabaseHelper.PINNED_SSL_CERTIFICATE, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.PINNED_SSL_CERTIFICATE)));
 140                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_TO_COMMON_NAME, domainsCursor.getString(domainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_TO_COMMON_NAME)));
 141                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_TO_ORGANIZATION, domainsCursor.getString(domainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_TO_ORGANIZATION)));
 142                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_TO_ORGANIZATIONAL_UNIT, domainsCursor.getString(domainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_TO_ORGANIZATIONAL_UNIT)));
 143                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_BY_COMMON_NAME, domainsCursor.getString(domainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_BY_COMMON_NAME)));
 144                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_BY_ORGANIZATION, domainsCursor.getString(domainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_BY_ORGANIZATION)));
 145                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_BY_ORGANIZATIONAL_UNIT, domainsCursor.getString(domainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_BY_ORGANIZATIONAL_UNIT)));
 146                 domainsContentValues.put(DomainsDatabaseHelper.SSL_START_DATE, domainsCursor.getLong(domainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_START_DATE)));
 147                 domainsContentValues.put(DomainsDatabaseHelper.SSL_END_DATE, domainsCursor.getLong(domainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_END_DATE)));
 148                 domainsContentValues.put(DomainsDatabaseHelper.PINNED_IP_ADDRESSES, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.PINNED_IP_ADDRESSES)));
 149                 domainsContentValues.put(DomainsDatabaseHelper.IP_ADDRESSES, domainsCursor.getString(domainsCursor.getColumnIndex(DomainsDatabaseHelper.IP_ADDRESSES)));
 150
 151                 // Insert the record into the export database.
 152                 exportDatabase.insert(DomainsDatabaseHelper.DOMAINS_TABLE, null, domainsContentValues);
 153
 154                 // Advance to the next record.
 155                 domainsCursor.moveToNext();
 156             }
 157
 158             // Close the domains database.
 159             domainsCursor.close();
 160             domainsDatabaseHelper.close();
 161
 162
 163             // Create the export database bookmarks table.
 164             exportDatabase.execSQL(BookmarksDatabaseHelper.CREATE_BOOKMARKS_TABLE);
 165
 166             // Open the bookmarks database.  The `0` specifies the database version, but that is ignored and set instead using a constant in `BookmarksDatabaseHelper`.
 167             BookmarksDatabaseHelper bookmarksDatabaseHelper = new BookmarksDatabaseHelper(context, null, null, 0);
 168
 169             // Get a full bookmarks cursor.
 170             Cursor bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarks();
 171
 172             // Move to the first bookmark.
 173             bookmarksCursor.moveToFirst();
 174
 175             // Copy the data from the bookmarks cursor into the export database.
 176             for (int i = 0; i < bookmarksCursor.getCount(); i++) {
 177                 // Extract the record from the cursor and store the data in a ContentValues.
 178                 ContentValues bookmarksContentValues = new ContentValues();
 179                 bookmarksContentValues.put(BookmarksDatabaseHelper.BOOKMARK_NAME, bookmarksCursor.getString(bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_NAME)));
 180                 bookmarksContentValues.put(BookmarksDatabaseHelper.BOOKMARK_URL, bookmarksCursor.getString(bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_URL)));
 181                 bookmarksContentValues.put(BookmarksDatabaseHelper.PARENT_FOLDER, bookmarksCursor.getString(bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.PARENT_FOLDER)));
 182                 bookmarksContentValues.put(BookmarksDatabaseHelper.DISPLAY_ORDER, bookmarksCursor.getInt(bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.DISPLAY_ORDER)));
 183                 bookmarksContentValues.put(BookmarksDatabaseHelper.IS_FOLDER, bookmarksCursor.getInt(bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.IS_FOLDER)));
 184                 bookmarksContentValues.put(BookmarksDatabaseHelper.FAVORITE_ICON, bookmarksCursor.getBlob(bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.FAVORITE_ICON)));
 185
 186                 // Insert the record into the export database.
 187                 exportDatabase.insert(BookmarksDatabaseHelper.BOOKMARKS_TABLE, null, bookmarksContentValues);
 188
 189                 // Advance to the next record.
 190                 bookmarksCursor.moveToNext();
 191             }
 192
 193             // Close the bookmarks database.
 194             bookmarksCursor.close();
 195             bookmarksDatabaseHelper.close();
 196
 197
 198             // Prepare the preferences table SQL creation string.
 199             String CREATE_PREFERENCES_TABLE = "CREATE TABLE " + PREFERENCES_TABLE + " (" +
 200                     _ID + " INTEGER PRIMARY KEY, " +
 201                     JAVASCRIPT + " BOOLEAN, " +
 202                     FIRST_PARTY_COOKIES + " BOOLEAN, " +
 203                     THIRD_PARTY_COOKIES + " BOOLEAN, " +
 204                     DOM_STORAGE + " BOOLEAN, " +
 205                     SAVE_FORM_DATA + " BOOLEAN, " +
 206                     USER_AGENT + " TEXT, " +
 207                     CUSTOM_USER_AGENT + " TEXT, " +
 208                     INCOGNITO_MODE + " BOOLEAN, " +
 209                     DO_NOT_TRACK + " BOOLEAN, " +
 210                     ALLOW_SCREENSHOTS + " BOOLEAN, " +
 211                     EASYLIST + " BOOLEAN, " +
 212                     EASYPRIVACY + " BOOLEAN, " +
 213                     FANBOYS_ANNOYANCE_LIST + " BOOLEAN, " +
 214                     FANBOYS_SOCIAL_BLOCKING_LIST + " BOOLEAN, " +
 215                     ULTRALIST + " BOOLEAN, " +
 216                     ULTRAPRIVACY + " BOOLEAN, " +
 217                     BLOCK_ALL_THIRD_PARTY_REQUESTS + " BOOLEAN, " +
 218                     GOOGLE_ANALYTICS + " BOOLEAN, " +
 219                     FACEBOOK_CLICK_IDS + " BOOLEAN, " +
 220                     TWITTER_AMP_REDIRECTS + " BOOLEAN, " +
 221                     SEARCH + " TEXT, " +
 222                     SEARCH_CUSTOM_URL + " TEXT, " +
 223                     PROXY + " TEXT, " +
 224                     PROXY_CUSTOM_HOST + " TEXT, " +
 225                     PROXY_CUSTOM_PORT + " TEXT, " +
 226                     FULL_SCREEN_BROWSING_MODE + " BOOLEAN, " +
 227                     HIDE_APP_BAR + " BOOLEAN, " +
 228                     CLEAR_EVERYTHING + " BOOLEAN, " +
 229                     CLEAR_COOKIES + " BOOLEAN, " +
 230                     CLEAR_DOM_STORAGE + " BOOLEAN, " +
 231                     CLEAR_FORM_DATA + " BOOLEAN, " +
 232                     CLEAR_CACHE + " BOOLEAN, " +
 233                     HOMEPAGE + " TEXT, " +
 234                     FONT_SIZE + " TEXT, " +
 235                     OPEN_INTENTS_IN_NEW_TAB + " BOOLEAN, " +
 236                     SWIPE_TO_REFRESH + " BOOLEAN, " +
 237                     SCROLL_APP_BAR + " BOOLEAN, " +
 238                     DISPLAY_ADDITIONAL_APP_BAR_ICONS + " BOOLEAN, " +
 239                     DOWNLOAD_WITH_EXTERNAL_APP + " BOOLEAN, " +
 240                     DARK_THEME + " BOOLEAN, " +
 241                     NIGHT_MODE + " BOOLEAN, " +
 242                     WIDE_VIEWPORT + " BOOLEAN, " +
 243                     DISPLAY_WEBPAGE_IMAGES + " BOOLEAN)";
 244
 245             // Create the export database preferences table.
 246             exportDatabase.execSQL(CREATE_PREFERENCES_TABLE);
 247
 248             // Get a handle for the shared preference.
 249             SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(context);
 250
 251             // Create a ContentValues with the preferences information.
 252             ContentValues preferencesContentValues = new ContentValues();
 253             preferencesContentValues.put(JAVASCRIPT, sharedPreferences.getBoolean(JAVASCRIPT, false));
 254             preferencesContentValues.put(FIRST_PARTY_COOKIES, sharedPreferences.getBoolean(FIRST_PARTY_COOKIES, false));
 255             preferencesContentValues.put(THIRD_PARTY_COOKIES, sharedPreferences.getBoolean(THIRD_PARTY_COOKIES, false));
 256             preferencesContentValues.put(DOM_STORAGE, sharedPreferences.getBoolean(DOM_STORAGE, false));
 257             preferencesContentValues.put(SAVE_FORM_DATA, sharedPreferences.getBoolean(SAVE_FORM_DATA, false));  // Save form data can be removed once the minimum API >= 26.
 258             preferencesContentValues.put(USER_AGENT, sharedPreferences.getString(USER_AGENT, context.getString(R.string.user_agent_default_value)));
 259             preferencesContentValues.put(CUSTOM_USER_AGENT, sharedPreferences.getString(CUSTOM_USER_AGENT, context.getString(R.string.custom_user_agent_default_value)));
 260             preferencesContentValues.put(INCOGNITO_MODE, sharedPreferences.getBoolean(INCOGNITO_MODE, false));
 261             preferencesContentValues.put(DO_NOT_TRACK, sharedPreferences.getBoolean(DO_NOT_TRACK, false));
 262             preferencesContentValues.put(ALLOW_SCREENSHOTS, sharedPreferences.getBoolean(ALLOW_SCREENSHOTS, false));
 263             preferencesContentValues.put(EASYLIST, sharedPreferences.getBoolean(EASYLIST, true));
 264             preferencesContentValues.put(EASYPRIVACY, sharedPreferences.getBoolean(EASYPRIVACY, true));
 265             preferencesContentValues.put(FANBOYS_ANNOYANCE_LIST, sharedPreferences.getBoolean(FANBOYS_ANNOYANCE_LIST, true));
 266             preferencesContentValues.put(FANBOYS_SOCIAL_BLOCKING_LIST, sharedPreferences.getBoolean(FANBOYS_SOCIAL_BLOCKING_LIST, true));
 267             preferencesContentValues.put(ULTRALIST, sharedPreferences.getBoolean(ULTRALIST, true));
 268             preferencesContentValues.put(ULTRAPRIVACY, sharedPreferences.getBoolean(ULTRAPRIVACY, true));
 269             preferencesContentValues.put(BLOCK_ALL_THIRD_PARTY_REQUESTS, sharedPreferences.getBoolean(BLOCK_ALL_THIRD_PARTY_REQUESTS, false));
 270             preferencesContentValues.put(GOOGLE_ANALYTICS, sharedPreferences.getBoolean(GOOGLE_ANALYTICS, true));
 271             preferencesContentValues.put(FACEBOOK_CLICK_IDS, sharedPreferences.getBoolean(FACEBOOK_CLICK_IDS, true));
 272             preferencesContentValues.put(TWITTER_AMP_REDIRECTS, sharedPreferences.getBoolean(TWITTER_AMP_REDIRECTS, true));
 273             preferencesContentValues.put(SEARCH, sharedPreferences.getString(SEARCH, context.getString(R.string.search_default_value)));
 274             preferencesContentValues.put(SEARCH_CUSTOM_URL, sharedPreferences.getString(SEARCH_CUSTOM_URL, context.getString(R.string.search_custom_url_default_value)));
 275             preferencesContentValues.put(PROXY, sharedPreferences.getString(PROXY, context.getString(R.string.proxy_default_value)));
 276             preferencesContentValues.put(PROXY_CUSTOM_HOST, sharedPreferences.getString(PROXY_CUSTOM_HOST, context.getString(R.string.proxy_custom_host_default_value)));
 277             preferencesContentValues.put(PROXY_CUSTOM_PORT, sharedPreferences.getString(PROXY_CUSTOM_PORT, context.getString(R.string.proxy_custom_port_default_value)));
 278             preferencesContentValues.put(FULL_SCREEN_BROWSING_MODE, sharedPreferences.getBoolean(FULL_SCREEN_BROWSING_MODE, false));
 279             preferencesContentValues.put(HIDE_APP_BAR, sharedPreferences.getBoolean(HIDE_APP_BAR, true));
 280             preferencesContentValues.put(CLEAR_EVERYTHING, sharedPreferences.getBoolean(CLEAR_EVERYTHING, true));
 281             preferencesContentValues.put(CLEAR_COOKIES, sharedPreferences.getBoolean(CLEAR_COOKIES, true));
 282             preferencesContentValues.put(CLEAR_DOM_STORAGE, sharedPreferences.getBoolean(CLEAR_DOM_STORAGE, true));
 283             preferencesContentValues.put(CLEAR_FORM_DATA, sharedPreferences.getBoolean(CLEAR_FORM_DATA, true));  // Clear form data can be removed once the minimum API >= 26.
 284             preferencesContentValues.put(CLEAR_CACHE, sharedPreferences.getBoolean(CLEAR_CACHE, true));
 285             preferencesContentValues.put(HOMEPAGE, sharedPreferences.getString(HOMEPAGE, context.getString(R.string.homepage_default_value)));
 286             preferencesContentValues.put(FONT_SIZE, sharedPreferences.getString(FONT_SIZE, context.getString(R.string.font_size_default_value)));
 287             preferencesContentValues.put(OPEN_INTENTS_IN_NEW_TAB, sharedPreferences.getBoolean(OPEN_INTENTS_IN_NEW_TAB, true));
 288             preferencesContentValues.put(SWIPE_TO_REFRESH, sharedPreferences.getBoolean(SWIPE_TO_REFRESH, true));
 289             preferencesContentValues.put(SCROLL_APP_BAR, sharedPreferences.getBoolean(SCROLL_APP_BAR, true));
 290             preferencesContentValues.put(DISPLAY_ADDITIONAL_APP_BAR_ICONS, sharedPreferences.getBoolean(DISPLAY_ADDITIONAL_APP_BAR_ICONS, false));
 291             preferencesContentValues.put(DOWNLOAD_WITH_EXTERNAL_APP, sharedPreferences.getBoolean(DOWNLOAD_WITH_EXTERNAL_APP, false));
 292             preferencesContentValues.put(DARK_THEME, sharedPreferences.getBoolean(DARK_THEME, false));
 293             preferencesContentValues.put(NIGHT_MODE, sharedPreferences.getBoolean(NIGHT_MODE, false));
 294             preferencesContentValues.put(WIDE_VIEWPORT, sharedPreferences.getBoolean(WIDE_VIEWPORT, true));
 295             preferencesContentValues.put(DISPLAY_WEBPAGE_IMAGES, sharedPreferences.getBoolean(DISPLAY_WEBPAGE_IMAGES, true));
 296
 297             // Insert the preferences into the export database.
 298             exportDatabase.insert(PREFERENCES_TABLE, null, preferencesContentValues);
 299
 300             // Close the export database.
 301             exportDatabase.close();
 302
 303             // Convert the database file to a string.
 304             String exportFileString = exportFile.toString();
 305
 306             // Create strings for the temporary database files.
 307             String journalFileString = exportFileString + "-journal";
 308
 309             // Get `Files` for the temporary database files.
 310             File journalFile = new File(journalFileString);
 311
 312             // Delete the Journal file if it exists.
 313             if (journalFile.exists()) {
 314                 //noinspection ResultOfMethodCallIgnored
 315                 journalFile.delete();
 316             }
 317
 318             // Export successful.
 319             return EXPORT_SUCCESSFUL;
 320         } catch (Exception exception) {
 321             // Return the export error.
 322             return exception.toString();
 323         }
 324     }
 325
 326     public String importUnencrypted(File importFile, Context context){
 327         try {
 328             // Create a temporary import file string.
 329             String temporaryImportFileString = context.getCacheDir() + "/" + "temporary_import_file";
 330
 331             // Get a handle for a temporary import file.
 332             File temporaryImportFile = new File(temporaryImportFileString);
 333
 334             // Delete the temporary import file if it already exists.
 335             if (temporaryImportFile.exists()) {
 336                 //noinspection ResultOfMethodCallIgnored
 337                 temporaryImportFile.delete();
 338             }
 339
 340             // Create input and output streams.
 341             InputStream importFileInputStream = new FileInputStream(importFile);
 342             OutputStream temporaryImportFileOutputStream = new FileOutputStream(temporaryImportFile);
 343
 344             // Create a byte array.
 345             byte[] transferByteArray = new byte[1024];
 346
 347             // Create an integer to track the number of bytes read.
 348             int bytesRead;
 349
 350             // Copy the import file to the temporary import file.  Once the minimum API >= 26 `Files.copy` can be used instead.
 351             while ((bytesRead = importFileInputStream.read(transferByteArray)) > 0) {
 352                 temporaryImportFileOutputStream.write(transferByteArray, 0, bytesRead);
 353             }
 354
 355             // Close the file streams.
 356             importFileInputStream.close();
 357             temporaryImportFileOutputStream.close();
 358
 359
 360             // Get a handle for the shared preference.
 361             SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(context);
 362
 363             // Open the import database.  Once the minimum API >= 27 the file can be opened directly without using the string.
 364             SQLiteDatabase importDatabase = SQLiteDatabase.openDatabase(temporaryImportFileString, null, SQLiteDatabase.OPEN_READWRITE);
 365
 366             // Get the database version.
 367             int importDatabaseVersion = importDatabase.getVersion();
 368
 369             // Upgrade the database if needed.
 370             if (importDatabaseVersion < SCHEMA_VERSION) {
 371                 switch (importDatabaseVersion){
 372                     // Upgrade from schema version 1.
 373                     case 1:
 374                         // Add the download with external app column to the preferences table.
 375                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + DOWNLOAD_WITH_EXTERNAL_APP + " BOOLEAN");
 376
 377                         // Get the current setting for downloading with an external app.
 378                         boolean downloadWithExternalApp = sharedPreferences.getBoolean(DOWNLOAD_WITH_EXTERNAL_APP, false);
 379
 380                         // Set the download with external app preference to the current value.
 381                         if (downloadWithExternalApp) {
 382                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + DOWNLOAD_WITH_EXTERNAL_APP + " = " + 1);
 383                         } else {
 384                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + DOWNLOAD_WITH_EXTERNAL_APP + " = " + 0);
 385                         }
 386
 387                     // Upgrade from schema version 2.
 388                     case 2:
 389                         // 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
 390                         // https://developer.android.com/reference/android/database/sqlite/package-summary
 391                         // 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.
 392
 393                         // Get a cursor with the current `default_font_size` value.
 394                         Cursor importDatabasePreferenceCursor = importDatabase.rawQuery("SELECT default_font_size FROM " + PREFERENCES_TABLE, null);
 395
 396                         // Move to the beginning fo the cursor.
 397                         importDatabasePreferenceCursor.moveToFirst();
 398
 399                         // Get the current value in `default_font_size`.
 400                         String fontSize = importDatabasePreferenceCursor.getString(importDatabasePreferenceCursor.getColumnIndex("default_font_size"));
 401
 402                         // Close the cursor.
 403                         importDatabasePreferenceCursor.close();
 404
 405                         // Create the new font size column.
 406                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + FONT_SIZE + " TEXT");
 407
 408                         // Place the font size string in the new column.
 409                         importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + FONT_SIZE + " = '" + fontSize + "'");
 410
 411                     // Upgrade from schema version 3.
 412                     case 3:
 413                         // Add the Pinned IP Addresses columns to the domains table.
 414                         importDatabase.execSQL("ALTER TABLE " + DomainsDatabaseHelper.DOMAINS_TABLE + " ADD COLUMN " + DomainsDatabaseHelper.PINNED_IP_ADDRESSES + " BOOLEAN");
 415                         importDatabase.execSQL("ALTER TABLE " + DomainsDatabaseHelper.DOMAINS_TABLE + " ADD COLUMN " + DomainsDatabaseHelper.IP_ADDRESSES + " TEXT");
 416
 417                     // Upgrade from schema version 4.
 418                     case 4:
 419                         // Add the hide and scroll app bar columns to the preferences table.
 420                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + HIDE_APP_BAR + " BOOLEAN");
 421                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + SCROLL_APP_BAR + " BOOLEAN");
 422
 423                         // Get the current hide and scroll app bar settings.
 424                         boolean hideAppBar = sharedPreferences.getBoolean(HIDE_APP_BAR, true);
 425                         boolean scrollAppBar = sharedPreferences.getBoolean(SCROLL_APP_BAR, true);
 426
 427                         // Populate the database with the current values.
 428                         if (hideAppBar) {
 429                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + HIDE_APP_BAR + " = " + 1);
 430                         } else {
 431                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + HIDE_APP_BAR + " = " + 0);
 432                         }
 433
 434                         if (scrollAppBar) {
 435                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + SCROLL_APP_BAR + " = " + 1);
 436                         } else {
 437                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + SCROLL_APP_BAR + " = " + 0);
 438                         }
 439
 440                     // Upgrade from schema version 5.
 441                     case 5:
 442                         // Add the open intents in new tab column to the preferences table.
 443                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + OPEN_INTENTS_IN_NEW_TAB + " BOOLEAN");
 444
 445                         // Get the current open intents in new tab preference.
 446                         boolean openIntentsInNewTab = sharedPreferences.getBoolean(OPEN_INTENTS_IN_NEW_TAB, true);
 447
 448                         // Populate the database with the current value.
 449                         if (openIntentsInNewTab) {
 450                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + OPEN_INTENTS_IN_NEW_TAB + " = " + 1);
 451                         } else {
 452                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + OPEN_INTENTS_IN_NEW_TAB + " = " + 0);
 453                         }
 454
 455                     // Upgrade from schema version 6.
 456                     case 6:
 457                         // Add the wide viewport column to the domains table.
 458                         importDatabase.execSQL("ALTER TABLE " + DomainsDatabaseHelper.DOMAINS_TABLE + " ADD COLUMN " + DomainsDatabaseHelper.WIDE_VIEWPORT + " INTEGER");
 459
 460                         // Add the Google Analytics, Facebook Click IDs, Twitter AMP redirects, and wide viewport columns to the preferences table.
 461                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + GOOGLE_ANALYTICS + " BOOLEAN");
 462                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + FACEBOOK_CLICK_IDS + " BOOLEAN");
 463                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + TWITTER_AMP_REDIRECTS + " BOOLEAN");
 464                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + WIDE_VIEWPORT + " BOOLEAN");
 465
 466                         // Get the current preference values.
 467                         boolean googleAnalytics = sharedPreferences.getBoolean(GOOGLE_ANALYTICS, true);
 468                         boolean facebookClickIds = sharedPreferences.getBoolean(FACEBOOK_CLICK_IDS, true);
 469                         boolean twitterAmpRedirects = sharedPreferences.getBoolean(TWITTER_AMP_REDIRECTS, true);
 470                         boolean wideViewport = sharedPreferences.getBoolean(WIDE_VIEWPORT, true);
 471
 472                         // Populate the database with the current Google Analytics value.
 473                         if (googleAnalytics) {
 474                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + GOOGLE_ANALYTICS + " = " + 1);
 475                         } else {
 476                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + GOOGLE_ANALYTICS + " = " + 0);
 477                         }
 478
 479                         // Populate the database with the current Facebook Click IDs value.
 480                         if (facebookClickIds) {
 481                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + FACEBOOK_CLICK_IDS + " = " + 1);
 482                         } else {
 483                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + FACEBOOK_CLICK_IDS + " = " + 0);
 484                         }
 485
 486                         // Populate the database with the current Twitter AMP redirects value.
 487                         if (twitterAmpRedirects) {
 488                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + TWITTER_AMP_REDIRECTS + " = " + 1);
 489                         } else {
 490                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + TWITTER_AMP_REDIRECTS + " = " + 0);
 491                         }
 492
 493                         // Populate the database with the current wide viewport value.
 494                         if (wideViewport) {
 495                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + WIDE_VIEWPORT + " = " + 1);
 496                         } else {
 497                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + WIDE_VIEWPORT + " = " + 0);
 498                         }
 499
 500                     // Upgrade from schema version 7.
 501                     case 7:
 502                         // Add the UltraList column to the domains table.
 503                         importDatabase.execSQL("ALTER TABLE " + DomainsDatabaseHelper.DOMAINS_TABLE + " ADD COLUMN " + DomainsDatabaseHelper.ULTRALIST + " BOOLEAN");
 504
 505                         // Add the UltraList column to the preferences table.
 506                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + ULTRALIST + " BOOLEAN");
 507
 508                         // Get the current preference values.
 509                         boolean ultraList = sharedPreferences.getBoolean(ULTRALIST, true);
 510
 511                         // Populate the tables with the current UltraList value.
 512                         if (ultraList) {
 513                             importDatabase.execSQL("UPDATE " + DomainsDatabaseHelper.DOMAINS_TABLE + " SET " + DomainsDatabaseHelper.ULTRALIST + " = " + 1);
 514                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + ULTRALIST + " = " + 1);
 515                         } else {
 516                             importDatabase.execSQL("UPDATE " + DomainsDatabaseHelper.DOMAINS_TABLE + " SET " + DomainsDatabaseHelper.ULTRALIST + " = " + 0);
 517                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + ULTRALIST + " = " + 0);
 518                         }
 519
 520                     // Upgrade from schema version 8.
 521                     case 8:
 522                         // Add the new proxy columns to the preferences table.
 523                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + PROXY + " TEXT");
 524                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + PROXY_CUSTOM_HOST + " TEXT");
 525                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + PROXY_CUSTOM_PORT + " TEXT");
 526
 527                         // Get the current proxy values.
 528                         String proxy = sharedPreferences.getString(PROXY, context.getString(R.string.proxy_default_value));
 529                         String proxyCustomHost = sharedPreferences.getString(PROXY_CUSTOM_HOST, context.getString(R.string.proxy_custom_host_default_value));
 530                         String proxyCustomPort = sharedPreferences.getString(PROXY_CUSTOM_PORT, context.getString(R.string.proxy_custom_port_default_value));
 531
 532                         // Populate the table with the current proxy values.
 533                         importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + PROXY + " = '" + proxy + "'");
 534                         importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + PROXY_CUSTOM_HOST + " = '" + proxyCustomHost + "'");
 535                         importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + PROXY_CUSTOM_PORT + " = '" + proxyCustomPort +"'");
 536                 }
 537             }
 538
 539             // Get a cursor for the domains table.
 540             Cursor importDomainsCursor = importDatabase.rawQuery("SELECT * FROM " + DomainsDatabaseHelper.DOMAINS_TABLE + " ORDER BY " + DomainsDatabaseHelper.DOMAIN_NAME + " ASC", null);
 541
 542             // Delete the current domains database.
 543             context.deleteDatabase(DomainsDatabaseHelper.DOMAINS_DATABASE);
 544
 545             // Create a new domains database.  The `0` specifies the database version, but that is ignored and set instead using a constant in `DomainsDatabaseHelper`.
 546             DomainsDatabaseHelper domainsDatabaseHelper = new DomainsDatabaseHelper(context, null, null, 0);
 547
 548             // Move to the first domain.
 549             importDomainsCursor.moveToFirst();
 550
 551             // Copy the data from the import domains cursor into the domains database.
 552             for (int i = 0; i < importDomainsCursor.getCount(); i++) {
 553                 // Extract the record from the cursor and store the data in a ContentValues.
 554                 ContentValues domainsContentValues = new ContentValues();
 555                 domainsContentValues.put(DomainsDatabaseHelper.DOMAIN_NAME, importDomainsCursor.getString(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.DOMAIN_NAME)));
 556                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_JAVASCRIPT, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_JAVASCRIPT)));
 557                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_FIRST_PARTY_COOKIES, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_FIRST_PARTY_COOKIES)));
 558                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_THIRD_PARTY_COOKIES, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_THIRD_PARTY_COOKIES)));
 559                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_DOM_STORAGE, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_DOM_STORAGE)));
 560                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_FORM_DATA, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_FORM_DATA)));
 561                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_EASYLIST, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_EASYLIST)));
 562                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_EASYPRIVACY, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_EASYPRIVACY)));
 563                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_FANBOYS_ANNOYANCE_LIST,
 564                         importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_FANBOYS_ANNOYANCE_LIST)));
 565                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_FANBOYS_SOCIAL_BLOCKING_LIST,
 566                         importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_FANBOYS_SOCIAL_BLOCKING_LIST)));
 567                 domainsContentValues.put(DomainsDatabaseHelper.ULTRALIST, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.ULTRALIST)));
 568                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_ULTRAPRIVACY, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_ULTRAPRIVACY)));
 569                 domainsContentValues.put(DomainsDatabaseHelper.BLOCK_ALL_THIRD_PARTY_REQUESTS,
 570                         importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.BLOCK_ALL_THIRD_PARTY_REQUESTS)));
 571                 domainsContentValues.put(DomainsDatabaseHelper.USER_AGENT, importDomainsCursor.getString(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.USER_AGENT)));
 572                 domainsContentValues.put(DomainsDatabaseHelper.FONT_SIZE, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.FONT_SIZE)));
 573                 domainsContentValues.put(DomainsDatabaseHelper.SWIPE_TO_REFRESH, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.SWIPE_TO_REFRESH)));
 574                 domainsContentValues.put(DomainsDatabaseHelper.NIGHT_MODE, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.NIGHT_MODE)));
 575                 domainsContentValues.put(DomainsDatabaseHelper.WIDE_VIEWPORT, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.WIDE_VIEWPORT)));
 576                 domainsContentValues.put(DomainsDatabaseHelper.DISPLAY_IMAGES, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.DISPLAY_IMAGES)));
 577                 domainsContentValues.put(DomainsDatabaseHelper.PINNED_SSL_CERTIFICATE, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.PINNED_SSL_CERTIFICATE)));
 578                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_TO_COMMON_NAME, importDomainsCursor.getString(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_TO_COMMON_NAME)));
 579                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_TO_ORGANIZATION, importDomainsCursor.getString(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_TO_ORGANIZATION)));
 580                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_TO_ORGANIZATIONAL_UNIT,
 581                         importDomainsCursor.getString(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_TO_ORGANIZATIONAL_UNIT)));
 582                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_BY_COMMON_NAME, importDomainsCursor.getString(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_BY_COMMON_NAME)));
 583                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_BY_ORGANIZATION, importDomainsCursor.getString(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_BY_ORGANIZATION)));
 584                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_BY_ORGANIZATIONAL_UNIT,
 585                         importDomainsCursor.getString(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_BY_ORGANIZATIONAL_UNIT)));
 586                 domainsContentValues.put(DomainsDatabaseHelper.SSL_START_DATE, importDomainsCursor.getLong(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_START_DATE)));
 587                 domainsContentValues.put(DomainsDatabaseHelper.SSL_END_DATE, importDomainsCursor.getLong(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_END_DATE)));
 588                 domainsContentValues.put(DomainsDatabaseHelper.PINNED_IP_ADDRESSES, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.PINNED_IP_ADDRESSES)));
 589                 domainsContentValues.put(DomainsDatabaseHelper.IP_ADDRESSES, importDomainsCursor.getString(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.IP_ADDRESSES)));
 590
 591                 // Insert the record into the export database.
 592                 domainsDatabaseHelper.addDomain(domainsContentValues);
 593
 594                 // Advance to the next record.
 595                 importDomainsCursor.moveToNext();
 596             }
 597
 598             // Close the domains cursor.
 599             importDomainsCursor.close();
 600
 601             // Close the domains database.
 602             domainsDatabaseHelper.close();
 603
 604
 605             // Get a cursor for the bookmarks table.
 606             Cursor importBookmarksCursor = importDatabase.rawQuery("SELECT * FROM " + BookmarksDatabaseHelper.BOOKMARKS_TABLE, null);
 607
 608             // Delete the current bookmarks database.
 609             context.deleteDatabase(BookmarksDatabaseHelper.BOOKMARKS_DATABASE);
 610
 611             // Create a new bookmarks database.  The `0` specifies the database version, but that is ignored and set instead using a constant in `BookmarksDatabaseHelper`.
 612             BookmarksDatabaseHelper bookmarksDatabaseHelper = new BookmarksDatabaseHelper(context, null, null, 0);
 613
 614             // Move to the first bookmark.
 615             importBookmarksCursor.moveToFirst();
 616
 617             // Copy the data from the import bookmarks cursor into the bookmarks database.
 618             for (int i = 0; i < importBookmarksCursor.getCount(); i++) {
 619                 // Extract the record from the cursor and store the data in a ContentValues.
 620                 ContentValues bookmarksContentValues = new ContentValues();
 621                 bookmarksContentValues.put(BookmarksDatabaseHelper.BOOKMARK_NAME, importBookmarksCursor.getString(importBookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_NAME)));
 622                 bookmarksContentValues.put(BookmarksDatabaseHelper.BOOKMARK_URL, importBookmarksCursor.getString(importBookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_URL)));
 623                 bookmarksContentValues.put(BookmarksDatabaseHelper.PARENT_FOLDER, importBookmarksCursor.getString(importBookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.PARENT_FOLDER)));
 624                 bookmarksContentValues.put(BookmarksDatabaseHelper.DISPLAY_ORDER, importBookmarksCursor.getInt(importBookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.DISPLAY_ORDER)));
 625                 bookmarksContentValues.put(BookmarksDatabaseHelper.IS_FOLDER, importBookmarksCursor.getInt(importBookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.IS_FOLDER)));
 626                 bookmarksContentValues.put(BookmarksDatabaseHelper.FAVORITE_ICON, importBookmarksCursor.getBlob(importBookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.FAVORITE_ICON)));
 627
 628                 // Insert the record into the export database.
 629                 bookmarksDatabaseHelper.createBookmark(bookmarksContentValues);
 630
 631                 // Advance to the next record.
 632                 importBookmarksCursor.moveToNext();
 633             }
 634
 635             // Close the bookmarks cursor.
 636             importBookmarksCursor.close();
 637
 638             // Close the bookmarks database.
 639             bookmarksDatabaseHelper.close();
 640
 641
 642             // Get a cursor for the bookmarks table.
 643             Cursor importPreferencesCursor = importDatabase.rawQuery("SELECT * FROM " + PREFERENCES_TABLE, null);
 644
 645             // Move to the first preference.
 646             importPreferencesCursor.moveToFirst();
 647
 648             // Import the preference data.
 649             sharedPreferences.edit()
 650                     .putBoolean(JAVASCRIPT, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(JAVASCRIPT)) == 1)
 651                     .putBoolean(FIRST_PARTY_COOKIES, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(FIRST_PARTY_COOKIES)) == 1)
 652                     .putBoolean(THIRD_PARTY_COOKIES, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(THIRD_PARTY_COOKIES)) == 1)
 653                     .putBoolean(DOM_STORAGE, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(DOM_STORAGE)) == 1)
 654                     // Save form data can be removed once the minimum API >= 26.
 655                     .putBoolean(SAVE_FORM_DATA, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(SAVE_FORM_DATA)) == 1)
 656                     .putString(USER_AGENT, importPreferencesCursor.getString(importPreferencesCursor.getColumnIndex(USER_AGENT)))
 657                     .putString(CUSTOM_USER_AGENT, importPreferencesCursor.getString(importPreferencesCursor.getColumnIndex(CUSTOM_USER_AGENT)))
 658                     .putBoolean(INCOGNITO_MODE, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(INCOGNITO_MODE)) == 1)
 659                     .putBoolean(DO_NOT_TRACK, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(DO_NOT_TRACK)) == 1)
 660                     .putBoolean(ALLOW_SCREENSHOTS, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(ALLOW_SCREENSHOTS)) == 1)
 661                     .putBoolean(EASYLIST, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(EASYLIST)) == 1)
 662                     .putBoolean(EASYPRIVACY, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(EASYPRIVACY)) == 1)
 663                     .putBoolean(FANBOYS_ANNOYANCE_LIST, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(FANBOYS_ANNOYANCE_LIST)) == 1)
 664                     .putBoolean(FANBOYS_SOCIAL_BLOCKING_LIST, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(FANBOYS_SOCIAL_BLOCKING_LIST)) == 1)
 665                     .putBoolean(ULTRALIST, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(ULTRALIST)) == 1)
 666                     .putBoolean(ULTRAPRIVACY, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(ULTRAPRIVACY)) == 1)
 667                     .putBoolean(BLOCK_ALL_THIRD_PARTY_REQUESTS, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(BLOCK_ALL_THIRD_PARTY_REQUESTS)) == 1)
 668                     .putBoolean(GOOGLE_ANALYTICS, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(GOOGLE_ANALYTICS)) == 1)
 669                     .putBoolean(FACEBOOK_CLICK_IDS, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(FACEBOOK_CLICK_IDS)) == 1)
 670                     .putBoolean(TWITTER_AMP_REDIRECTS, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(TWITTER_AMP_REDIRECTS)) == 1)
 671                     .putString(SEARCH, importPreferencesCursor.getString(importPreferencesCursor.getColumnIndex(SEARCH)))
 672                     .putString(SEARCH_CUSTOM_URL, importPreferencesCursor.getString(importPreferencesCursor.getColumnIndex(SEARCH_CUSTOM_URL)))
 673                     .putString(PROXY, importPreferencesCursor.getString(importPreferencesCursor.getColumnIndex(PROXY)))
 674                     .putString(PROXY_CUSTOM_HOST, importPreferencesCursor.getString(importPreferencesCursor.getColumnIndex(PROXY_CUSTOM_HOST)))
 675                     .putString(PROXY_CUSTOM_PORT, importPreferencesCursor.getString(importPreferencesCursor.getColumnIndex(PROXY_CUSTOM_PORT)))
 676                     .putBoolean(FULL_SCREEN_BROWSING_MODE, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(FULL_SCREEN_BROWSING_MODE)) == 1)
 677                     .putBoolean(HIDE_APP_BAR, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(HIDE_APP_BAR)) == 1)
 678                     .putBoolean(CLEAR_EVERYTHING, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(CLEAR_EVERYTHING)) == 1)
 679                     .putBoolean(CLEAR_COOKIES, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(CLEAR_COOKIES)) == 1)
 680                     .putBoolean(CLEAR_DOM_STORAGE, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(CLEAR_DOM_STORAGE)) == 1)
 681                     // Clear form data can be removed once the minimum API >= 26.
 682                     .putBoolean(CLEAR_FORM_DATA, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(CLEAR_FORM_DATA)) == 1)
 683                     .putBoolean(CLEAR_CACHE, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(CLEAR_CACHE)) == 1)
 684                     .putString(HOMEPAGE, importPreferencesCursor.getString(importPreferencesCursor.getColumnIndex(HOMEPAGE)))
 685                     .putString(FONT_SIZE, importPreferencesCursor.getString(importPreferencesCursor.getColumnIndex(FONT_SIZE)))
 686                     .putBoolean(OPEN_INTENTS_IN_NEW_TAB, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(OPEN_INTENTS_IN_NEW_TAB)) == 1)
 687                     .putBoolean(SWIPE_TO_REFRESH, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(SWIPE_TO_REFRESH)) == 1)
 688                     .putBoolean(SCROLL_APP_BAR, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(SCROLL_APP_BAR)) == 1)
 689                     .putBoolean(DISPLAY_ADDITIONAL_APP_BAR_ICONS, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(DISPLAY_ADDITIONAL_APP_BAR_ICONS)) == 1)
 690                     .putBoolean(DOWNLOAD_WITH_EXTERNAL_APP, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(DOWNLOAD_WITH_EXTERNAL_APP)) == 1)
 691                     .putBoolean(DARK_THEME, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(DARK_THEME)) == 1)
 692                     .putBoolean(NIGHT_MODE, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(NIGHT_MODE)) == 1)
 693                     .putBoolean(WIDE_VIEWPORT, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(WIDE_VIEWPORT)) == 1)
 694                     .putBoolean(DISPLAY_WEBPAGE_IMAGES, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(DISPLAY_WEBPAGE_IMAGES)) == 1)
 695                     .apply();
 696
 697             // Close the preferences cursor.
 698             importPreferencesCursor.close();
 699
 700
 701             // Close the import database.
 702             importDatabase.close();
 703
 704             // Create strings for the temporary database files.
 705             String shmFileString = temporaryImportFileString + "-shm";
 706             String walFileString = temporaryImportFileString + "-wal";
 707             String journalFileString = temporaryImportFileString + "-journal";
 708
 709             // Get `Files` for the temporary database files.
 710             File shmFile = new File(shmFileString);
 711             File walFile = new File(walFileString);
 712             File journalFile = new File(journalFileString);
 713
 714             // Delete the Shared Memory file if it exists.
 715             if (shmFile.exists()) {
 716                 //noinspection ResultOfMethodCallIgnored
 717                 shmFile.delete();
 718             }
 719
 720             // Delete the Write Ahead Log file if it exists.
 721             if (walFile.exists()) {
 722                 //noinspection ResultOfMethodCallIgnored
 723                 walFile.delete();
 724             }
 725
 726             // Delete the Journal file if it exists.
 727             if (journalFile.exists()) {
 728                 //noinspection ResultOfMethodCallIgnored
 729                 journalFile.delete();
 730             }
 731
 732             // Delete the temporary import file.
 733             //noinspection ResultOfMethodCallIgnored
 734             temporaryImportFile.delete();
 735
 736             // Import successful.
 737             return IMPORT_SUCCESSFUL;
 738         } catch (Exception exception) {
 739             // Return the import error.
 740             return exception.toString();
 741         }
 742     }
 743 }