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

   1 /*
   2  * Copyright © 2018-2021 Soren Stoutner <soren@stoutner.com>.
   3  *
   4  * This file is part of Privacy Browser <https://www.stoutner.com/privacy-browser>.
   5  *
   6  * Privacy Browser is free software: you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation, either version 3 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * Privacy Browser is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with Privacy Browser.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 package com.stoutner.privacybrowser.helpers;
  21
  22 import android.content.ContentValues;
  23 import android.content.Context;
  24 import android.content.SharedPreferences;
  25 import android.database.Cursor;
  26 import android.database.DatabaseUtils;
  27 import android.database.sqlite.SQLiteDatabase;
  28 import android.preference.PreferenceManager;
  29
  30 import com.stoutner.privacybrowser.R;
  31
  32 import java.io.File;
  33 import java.io.FileInputStream;
  34 import java.io.FileOutputStream;
  35 import java.io.InputStream;
  36 import java.io.OutputStream;
  37
  38 public class ImportExportDatabaseHelper {
  39     // Declare the public constants.
  40     public static final String EXPORT_SUCCESSFUL = "Export Successful";
  41     public static final String IMPORT_SUCCESSFUL = "Import Successful";
  42
  43     // Declare the class constants.
  44     private static final int SCHEMA_VERSION = 14;
  45     private static final String PREFERENCES_TABLE = "preferences";
  46
  47     // Declare the preferences constants.
  48     private static final String _ID = "_id";
  49     private static final String JAVASCRIPT = "javascript";
  50     private static final String COOKIES = "cookies";
  51     private static final String DOM_STORAGE = "dom_storage";
  52     private static final String SAVE_FORM_DATA = "save_form_data";
  53     private static final String USER_AGENT = "user_agent";
  54     private static final String CUSTOM_USER_AGENT = "custom_user_agent";
  55     private static final String INCOGNITO_MODE = "incognito_mode";
  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_LOGCAT = "clear_logcat";
  78     private static final String CLEAR_CACHE = "clear_cache";
  79     private static final String HOMEPAGE = "homepage";
  80     private static final String FONT_SIZE = "font_size";
  81     private static final String OPEN_INTENTS_IN_NEW_TAB = "open_intents_in_new_tab";
  82     private static final String SWIPE_TO_REFRESH = "swipe_to_refresh";
  83     private static final String SCROLL_APP_BAR = "scroll_app_bar";
  84     private static final String DISPLAY_ADDITIONAL_APP_BAR_ICONS = "display_additional_app_bar_icons";
  85     private static final String APP_THEME = "app_theme";
  86     private static final String WEBVIEW_THEME = "webview_theme";
  87     private static final String WIDE_VIEWPORT = "wide_viewport";
  88     private static final String DISPLAY_WEBPAGE_IMAGES = "display_webpage_images";
  89
  90     public String importUnencrypted(InputStream importFileInputStream, Context context){
  91         try {
  92             // Create a temporary import file.
  93             File temporaryImportFile = File.createTempFile("temporary_import_file", null, context.getCacheDir());
  94
  95             // Create a temporary file output stream.
  96             FileOutputStream temporaryImportFileOutputStream = new FileOutputStream(temporaryImportFile);
  97
  98             // Create a transfer byte array.
  99             byte[] transferByteArray = new byte[1024];
 100
 101             // Create an integer to track the number of bytes read.
 102             int bytesRead;
 103
 104             // Copy the import file to the temporary import file.
 105             while ((bytesRead = importFileInputStream.read(transferByteArray)) > 0) {
 106                 temporaryImportFileOutputStream.write(transferByteArray, 0, bytesRead);
 107             }
 108
 109             // Flush the temporary import file output stream.
 110             temporaryImportFileOutputStream.flush();
 111
 112             // Close the file streams.
 113             importFileInputStream.close();
 114             temporaryImportFileOutputStream.close();
 115
 116
 117             // Get a handle for the shared preference.
 118             SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(context);
 119
 120             // Open the import database.  Once the minimum API >= 27 the file can be opened directly without using the string.
 121             SQLiteDatabase importDatabase = SQLiteDatabase.openDatabase(temporaryImportFile.toString(), null, SQLiteDatabase.OPEN_READWRITE);
 122
 123             // Get the database version.
 124             int importDatabaseVersion = importDatabase.getVersion();
 125
 126             // Upgrade the database if needed.
 127             if (importDatabaseVersion < SCHEMA_VERSION) {
 128                 switch (importDatabaseVersion) {
 129                     // Upgrade from schema version 1, Privacy Browser 2.13.
 130                     case 1:
 131                         // Previously this upgrade added `download_with_external_app` to the Preferences table.  But that is now removed in schema version 10.
 132
 133                     // Upgrade from schema version 2, Privacy Browser 2.14.
 134                     case 2:
 135                         // 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>
 136                         // <https://developer.android.com/reference/android/database/sqlite/package-summary>
 137                         // 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.
 138
 139                         // Create the new font size column.
 140                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + FONT_SIZE + " TEXT");
 141
 142                         // Populate the preferences table with the current font size value.
 143                         importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + FONT_SIZE + " = default_font_size");
 144
 145                     // Upgrade from schema version 3, Privacy Browser 2.15.
 146                     case 3:
 147                         // Add the Pinned IP Addresses columns to the domains table.
 148                         importDatabase.execSQL("ALTER TABLE " + DomainsDatabaseHelper.DOMAINS_TABLE + " ADD COLUMN " + DomainsDatabaseHelper.PINNED_IP_ADDRESSES + " BOOLEAN");
 149                         importDatabase.execSQL("ALTER TABLE " + DomainsDatabaseHelper.DOMAINS_TABLE + " ADD COLUMN " + DomainsDatabaseHelper.IP_ADDRESSES + " TEXT");
 150
 151                     // Upgrade from schema version 4, Privacy Browser 2.16.
 152                     case 4:
 153                         // Add the hide and scroll app bar columns to the preferences table.
 154                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + HIDE_APP_BAR + " BOOLEAN");
 155                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + SCROLL_APP_BAR + " BOOLEAN");
 156
 157                         // Get the current hide and scroll app bar settings.
 158                         boolean hideAppBar = sharedPreferences.getBoolean(HIDE_APP_BAR, true);
 159                         boolean scrollAppBar = sharedPreferences.getBoolean(SCROLL_APP_BAR, true);
 160
 161                         // Populate the preferences table with the current app bar values.
 162                         if (hideAppBar) {
 163                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + HIDE_APP_BAR + " = " + 1);
 164                         } else {
 165                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + HIDE_APP_BAR + " = " + 0);
 166                         }
 167
 168                         if (scrollAppBar) {
 169                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + SCROLL_APP_BAR + " = " + 1);
 170                         } else {
 171                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + SCROLL_APP_BAR + " = " + 0);
 172                         }
 173
 174                     // Upgrade from schema version 5, Privacy Browser 2.17.
 175                     case 5:
 176                         // Add the open intents in new tab column to the preferences table.
 177                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + OPEN_INTENTS_IN_NEW_TAB + " BOOLEAN");
 178
 179                         // Get the current open intents in new tab preference.
 180                         boolean openIntentsInNewTab = sharedPreferences.getBoolean(OPEN_INTENTS_IN_NEW_TAB, true);
 181
 182                         // Populate the preferences table with the current open intents value.
 183                         if (openIntentsInNewTab) {
 184                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + OPEN_INTENTS_IN_NEW_TAB + " = " + 1);
 185                         } else {
 186                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + OPEN_INTENTS_IN_NEW_TAB + " = " + 0);
 187                         }
 188
 189                     // Upgrade from schema version 6, Privacy Browser 3.0.
 190                     case 6:
 191                         // Add the wide viewport column to the domains table.
 192                         importDatabase.execSQL("ALTER TABLE " + DomainsDatabaseHelper.DOMAINS_TABLE + " ADD COLUMN " + DomainsDatabaseHelper.WIDE_VIEWPORT + " INTEGER");
 193
 194                         // Add the Google Analytics, Facebook Click IDs, Twitter AMP redirects, and wide viewport columns to the preferences table.
 195                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + GOOGLE_ANALYTICS + " BOOLEAN");
 196                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + FACEBOOK_CLICK_IDS + " BOOLEAN");
 197                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + TWITTER_AMP_REDIRECTS + " BOOLEAN");
 198                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + WIDE_VIEWPORT + " BOOLEAN");
 199
 200                         // Get the current preference values.
 201                         boolean googleAnalytics = sharedPreferences.getBoolean(GOOGLE_ANALYTICS, true);
 202                         boolean facebookClickIds = sharedPreferences.getBoolean(FACEBOOK_CLICK_IDS, true);
 203                         boolean twitterAmpRedirects = sharedPreferences.getBoolean(TWITTER_AMP_REDIRECTS, true);
 204                         boolean wideViewport = sharedPreferences.getBoolean(WIDE_VIEWPORT, true);
 205
 206                         // Populate the preferences with the current Google Analytics value.
 207                         if (googleAnalytics) {
 208                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + GOOGLE_ANALYTICS + " = " + 1);
 209                         } else {
 210                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + GOOGLE_ANALYTICS + " = " + 0);
 211                         }
 212
 213                         // Populate the preferences with the current Facebook Click IDs value.
 214                         if (facebookClickIds) {
 215                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + FACEBOOK_CLICK_IDS + " = " + 1);
 216                         } else {
 217                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + FACEBOOK_CLICK_IDS + " = " + 0);
 218                         }
 219
 220                         // Populate the preferences table with the current Twitter AMP redirects value.
 221                         if (twitterAmpRedirects) {
 222                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + TWITTER_AMP_REDIRECTS + " = " + 1);
 223                         } else {
 224                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + TWITTER_AMP_REDIRECTS + " = " + 0);
 225                         }
 226
 227                         // Populate the preferences table with the current wide viewport value.
 228                         if (wideViewport) {
 229                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + WIDE_VIEWPORT + " = " + 1);
 230                         } else {
 231                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + WIDE_VIEWPORT + " = " + 0);
 232                         }
 233
 234                     // Upgrade from schema version 7, Privacy Browser 3.1.
 235                     case 7:
 236                         // Add the UltraList column to the domains table.
 237                         importDatabase.execSQL("ALTER TABLE " + DomainsDatabaseHelper.DOMAINS_TABLE + " ADD COLUMN " + DomainsDatabaseHelper.ULTRALIST + " BOOLEAN");
 238
 239                         // Add the UltraList column to the preferences table.
 240                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + ULTRALIST + " BOOLEAN");
 241
 242                         // Get the current preference values.
 243                         boolean ultraList = sharedPreferences.getBoolean(ULTRALIST, true);
 244
 245                         // Populate the preferences tables with the current UltraList value.
 246                         if (ultraList) {
 247                             importDatabase.execSQL("UPDATE " + DomainsDatabaseHelper.DOMAINS_TABLE + " SET " + DomainsDatabaseHelper.ULTRALIST + " = " + 1);
 248                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + ULTRALIST + " = " + 1);
 249                         } else {
 250                             importDatabase.execSQL("UPDATE " + DomainsDatabaseHelper.DOMAINS_TABLE + " SET " + DomainsDatabaseHelper.ULTRALIST + " = " + 0);
 251                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + ULTRALIST + " = " + 0);
 252                         }
 253
 254                     // Upgrade from schema version 8, Privacy Browser 3.2.
 255                     case 8:
 256                         // Add the new proxy columns to the preferences table.
 257                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + PROXY + " TEXT");
 258                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + PROXY_CUSTOM_URL + " TEXT");
 259
 260                         // Get the current proxy values.
 261                         String proxy = sharedPreferences.getString(PROXY, context.getString(R.string.proxy_default_value));
 262                         String proxyCustomUrl = sharedPreferences.getString(PROXY_CUSTOM_URL, context.getString(R.string.proxy_custom_url_default_value));
 263
 264                         // SQL escape the proxy custom URL string.
 265                         proxyCustomUrl = DatabaseUtils.sqlEscapeString(proxyCustomUrl);
 266
 267                         // Populate the preferences table with the current proxy values. The proxy custom URL does not need to be surrounded by `'` because it was SLQ escaped above.
 268                         importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + PROXY + " = '" + proxy + "'");
 269                         importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + PROXY_CUSTOM_URL + " = " + proxyCustomUrl);
 270
 271                     // Upgrade from schema version 9, Privacy Browser 3.3.
 272                     case 9:
 273                         // Previously this upgrade added `download_location` and `download_custom_location` to the Preferences table.  But they are now removed in schema version 13.
 274
 275                     // Upgrade from schema version 10, Privacy Browser 3.4.
 276                     case 10:
 277                         // Add the app theme column to the preferences table.
 278                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + APP_THEME + " TEXT");
 279
 280                         // Get a cursor for the dark theme preference.
 281                         Cursor darkThemePreferencesCursor = importDatabase.rawQuery("SELECT dark_theme FROM " + PREFERENCES_TABLE, null);
 282
 283                         // Move to the first preference.
 284                         darkThemePreferencesCursor.moveToFirst();
 285
 286                         // Get the old dark theme value, which is in column 0.
 287                         int darkTheme = darkThemePreferencesCursor.getInt(0);
 288
 289                         // Close the dark theme preference cursor.
 290                         darkThemePreferencesCursor.close();
 291
 292                         // Populate the app theme according to the old dark theme preference.
 293                         if (darkTheme == 0) {  // A light theme was selected.
 294                             // Set the app theme to be the system default.
 295                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + APP_THEME + " = 'System default'");
 296                         } else {  // A dark theme was selected.
 297                             // Set the app theme to be dark.
 298                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + APP_THEME + " = 'Dark'");
 299                         }
 300
 301                         // Add the WebView theme to the domains table.  This defaults to 0, which is `System default`, so a separate step isn't needed to populate the database.
 302                         importDatabase.execSQL("ALTER TABLE " + DomainsDatabaseHelper.DOMAINS_TABLE + " ADD COLUMN " + DomainsDatabaseHelper.WEBVIEW_THEME + " INTEGER");
 303
 304                         // Add the WebView theme to the preferences table.
 305                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + WEBVIEW_THEME + " TEXT");
 306
 307                         // Get the WebView theme default value string.
 308                         String webViewThemeDefaultValue = context.getString(R.string.webview_theme_default_value);
 309
 310                         // Set the WebView theme in the preferences table to be the default.
 311                         importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + WEBVIEW_THEME + " = " + "'" + webViewThemeDefaultValue + "'");
 312
 313                     // Upgrade from schema version 11, Privacy Browser 3.5.
 314                     case 11:
 315                         // Add the clear logcat column to the preferences table.
 316                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + CLEAR_LOGCAT + " BOOLEAN");
 317
 318                         // Get the current clear logcat value.
 319                         boolean clearLogcat = sharedPreferences.getBoolean(CLEAR_LOGCAT, true);
 320
 321                         // Populate the preference table with the current clear logcat value.
 322                         if (clearLogcat) {
 323                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + CLEAR_LOGCAT + " = " + 1);
 324                         } else {
 325                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + CLEAR_LOGCAT + " = " + 0);
 326                         }
 327
 328                     // Upgrade from schema version 12, Privacy Browser 3.6.
 329                     case 12:
 330                         // Do nothing.  `download_location` and `download_custom_location` were removed from the preferences table.
 331
 332                     // Upgrade from schema version 13, Privacy Browser 3.7
 333                     case 13:
 334                         // `enabledthirdpartycookies` was removed from the domains table.  `do_not_track` and `third_party_cookies` were removed from the preferences table.
 335
 336                         // 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>
 337                         // <https://developer.android.com/reference/android/database/sqlite/package-summary>
 338                         // 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.
 339
 340                         // Create the new cookies columns.
 341                         importDatabase.execSQL("ALTER TABLE " + DomainsDatabaseHelper.DOMAINS_TABLE + " ADD COLUMN " + DomainsDatabaseHelper.COOKIES + " BOOLEAN");
 342                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + COOKIES + " BOOLEAN");
 343
 344                         // Copy the data from the old cookies columns to the new ones.
 345                         importDatabase.execSQL("UPDATE " + DomainsDatabaseHelper.DOMAINS_TABLE + " SET " + DomainsDatabaseHelper.COOKIES + " = enablefirstpartycookies");
 346                         importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + COOKIES + " = first_party_cookies");
 347                 }
 348             }
 349
 350             // Get a cursor for the bookmarks table.
 351             Cursor importBookmarksCursor = importDatabase.rawQuery("SELECT * FROM " + BookmarksDatabaseHelper.BOOKMARKS_TABLE, null);
 352
 353             // Delete the current bookmarks database.
 354             context.deleteDatabase(BookmarksDatabaseHelper.BOOKMARKS_DATABASE);
 355
 356             // Create a new bookmarks database.  The `0` specifies the database version, but that is ignored and set instead using a constant in `BookmarksDatabaseHelper`.
 357             BookmarksDatabaseHelper bookmarksDatabaseHelper = new BookmarksDatabaseHelper(context, null, null, 0);
 358
 359             // Move to the first bookmark.
 360             importBookmarksCursor.moveToFirst();
 361
 362             // Copy the data from the import bookmarks cursor into the bookmarks database.
 363             for (int i = 0; i < importBookmarksCursor.getCount(); i++) {
 364                 // Extract the record from the cursor and store the data in a ContentValues.
 365                 ContentValues bookmarksContentValues = new ContentValues();
 366                 bookmarksContentValues.put(BookmarksDatabaseHelper.BOOKMARK_NAME, importBookmarksCursor.getString(importBookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_NAME)));
 367                 bookmarksContentValues.put(BookmarksDatabaseHelper.BOOKMARK_URL, importBookmarksCursor.getString(importBookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_URL)));
 368                 bookmarksContentValues.put(BookmarksDatabaseHelper.PARENT_FOLDER, importBookmarksCursor.getString(importBookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.PARENT_FOLDER)));
 369                 bookmarksContentValues.put(BookmarksDatabaseHelper.DISPLAY_ORDER, importBookmarksCursor.getInt(importBookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.DISPLAY_ORDER)));
 370                 bookmarksContentValues.put(BookmarksDatabaseHelper.IS_FOLDER, importBookmarksCursor.getInt(importBookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.IS_FOLDER)));
 371                 bookmarksContentValues.put(BookmarksDatabaseHelper.FAVORITE_ICON, importBookmarksCursor.getBlob(importBookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.FAVORITE_ICON)));
 372
 373                 // Insert the record into the export database.
 374                 bookmarksDatabaseHelper.createBookmark(bookmarksContentValues);
 375
 376                 // Advance to the next record.
 377                 importBookmarksCursor.moveToNext();
 378             }
 379
 380             // Close the bookmarks cursor.
 381             importBookmarksCursor.close();
 382
 383             // Close the bookmarks database.
 384             bookmarksDatabaseHelper.close();
 385
 386
 387             // Get a cursor for the domains table.
 388             Cursor importDomainsCursor = importDatabase.rawQuery("SELECT * FROM " + DomainsDatabaseHelper.DOMAINS_TABLE + " ORDER BY " + DomainsDatabaseHelper.DOMAIN_NAME + " ASC", null);
 389
 390             // Delete the current domains database.
 391             context.deleteDatabase(DomainsDatabaseHelper.DOMAINS_DATABASE);
 392
 393             // Create a new domains database.  The `0` specifies the database version, but that is ignored and set instead using a constant in `DomainsDatabaseHelper`.
 394             DomainsDatabaseHelper domainsDatabaseHelper = new DomainsDatabaseHelper(context, null, null, 0);
 395
 396             // Move to the first domain.
 397             importDomainsCursor.moveToFirst();
 398
 399             // Copy the data from the import domains cursor into the domains database.
 400             for (int i = 0; i < importDomainsCursor.getCount(); i++) {
 401                 // Extract the record from the cursor and store the data in a ContentValues.
 402                 ContentValues domainsContentValues = new ContentValues();
 403                 domainsContentValues.put(DomainsDatabaseHelper.DOMAIN_NAME, importDomainsCursor.getString(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.DOMAIN_NAME)));
 404                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_JAVASCRIPT, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_JAVASCRIPT)));
 405                 domainsContentValues.put(DomainsDatabaseHelper.COOKIES, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.COOKIES)));
 406                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_DOM_STORAGE, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_DOM_STORAGE)));
 407                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_FORM_DATA, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_FORM_DATA)));
 408                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_EASYLIST, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_EASYLIST)));
 409                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_EASYPRIVACY, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_EASYPRIVACY)));
 410                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_FANBOYS_ANNOYANCE_LIST,
 411                         importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_FANBOYS_ANNOYANCE_LIST)));
 412                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_FANBOYS_SOCIAL_BLOCKING_LIST,
 413                         importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_FANBOYS_SOCIAL_BLOCKING_LIST)));
 414                 domainsContentValues.put(DomainsDatabaseHelper.ULTRALIST, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.ULTRALIST)));
 415                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_ULTRAPRIVACY, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_ULTRAPRIVACY)));
 416                 domainsContentValues.put(DomainsDatabaseHelper.BLOCK_ALL_THIRD_PARTY_REQUESTS,
 417                         importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.BLOCK_ALL_THIRD_PARTY_REQUESTS)));
 418                 domainsContentValues.put(DomainsDatabaseHelper.USER_AGENT, importDomainsCursor.getString(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.USER_AGENT)));
 419                 domainsContentValues.put(DomainsDatabaseHelper.FONT_SIZE, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.FONT_SIZE)));
 420                 domainsContentValues.put(DomainsDatabaseHelper.SWIPE_TO_REFRESH, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.SWIPE_TO_REFRESH)));
 421                 domainsContentValues.put(DomainsDatabaseHelper.WEBVIEW_THEME, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.WEBVIEW_THEME)));
 422                 domainsContentValues.put(DomainsDatabaseHelper.WIDE_VIEWPORT, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.WIDE_VIEWPORT)));
 423                 domainsContentValues.put(DomainsDatabaseHelper.DISPLAY_IMAGES, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.DISPLAY_IMAGES)));
 424                 domainsContentValues.put(DomainsDatabaseHelper.PINNED_SSL_CERTIFICATE, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.PINNED_SSL_CERTIFICATE)));
 425                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_TO_COMMON_NAME, importDomainsCursor.getString(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_TO_COMMON_NAME)));
 426                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_TO_ORGANIZATION, importDomainsCursor.getString(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_TO_ORGANIZATION)));
 427                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_TO_ORGANIZATIONAL_UNIT,
 428                         importDomainsCursor.getString(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_TO_ORGANIZATIONAL_UNIT)));
 429                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_BY_COMMON_NAME, importDomainsCursor.getString(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_BY_COMMON_NAME)));
 430                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_BY_ORGANIZATION, importDomainsCursor.getString(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_BY_ORGANIZATION)));
 431                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_BY_ORGANIZATIONAL_UNIT,
 432                         importDomainsCursor.getString(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_BY_ORGANIZATIONAL_UNIT)));
 433                 domainsContentValues.put(DomainsDatabaseHelper.SSL_START_DATE, importDomainsCursor.getLong(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_START_DATE)));
 434                 domainsContentValues.put(DomainsDatabaseHelper.SSL_END_DATE, importDomainsCursor.getLong(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_END_DATE)));
 435                 domainsContentValues.put(DomainsDatabaseHelper.PINNED_IP_ADDRESSES, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.PINNED_IP_ADDRESSES)));
 436                 domainsContentValues.put(DomainsDatabaseHelper.IP_ADDRESSES, importDomainsCursor.getString(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.IP_ADDRESSES)));
 437
 438                 // Insert the record into the export database.
 439                 domainsDatabaseHelper.addDomain(domainsContentValues);
 440
 441                 // Advance to the next record.
 442                 importDomainsCursor.moveToNext();
 443             }
 444
 445             // Close the domains cursor.
 446             importDomainsCursor.close();
 447
 448             // Close the domains database.
 449             domainsDatabaseHelper.close();
 450
 451
 452             // Get a cursor for the preferences table.
 453             Cursor importPreferencesCursor = importDatabase.rawQuery("SELECT * FROM " + PREFERENCES_TABLE, null);
 454
 455             // Move to the first preference.
 456             importPreferencesCursor.moveToFirst();
 457
 458             // Import the preference data.
 459             sharedPreferences.edit()
 460                     .putBoolean(JAVASCRIPT, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(JAVASCRIPT)) == 1)
 461                     .putBoolean(COOKIES, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(COOKIES)) == 1)
 462                     .putBoolean(DOM_STORAGE, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(DOM_STORAGE)) == 1)
 463                     // Save form data can be removed once the minimum API >= 26.
 464                     .putBoolean(SAVE_FORM_DATA, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(SAVE_FORM_DATA)) == 1)
 465                     .putString(USER_AGENT, importPreferencesCursor.getString(importPreferencesCursor.getColumnIndex(USER_AGENT)))
 466                     .putString(CUSTOM_USER_AGENT, importPreferencesCursor.getString(importPreferencesCursor.getColumnIndex(CUSTOM_USER_AGENT)))
 467                     .putBoolean(INCOGNITO_MODE, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(INCOGNITO_MODE)) == 1)
 468                     .putBoolean(ALLOW_SCREENSHOTS, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(ALLOW_SCREENSHOTS)) == 1)
 469                     .putBoolean(EASYLIST, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(EASYLIST)) == 1)
 470                     .putBoolean(EASYPRIVACY, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(EASYPRIVACY)) == 1)
 471                     .putBoolean(FANBOYS_ANNOYANCE_LIST, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(FANBOYS_ANNOYANCE_LIST)) == 1)
 472                     .putBoolean(FANBOYS_SOCIAL_BLOCKING_LIST, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(FANBOYS_SOCIAL_BLOCKING_LIST)) == 1)
 473                     .putBoolean(ULTRALIST, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(ULTRALIST)) == 1)
 474                     .putBoolean(ULTRAPRIVACY, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(ULTRAPRIVACY)) == 1)
 475                     .putBoolean(BLOCK_ALL_THIRD_PARTY_REQUESTS, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(BLOCK_ALL_THIRD_PARTY_REQUESTS)) == 1)
 476                     .putBoolean(GOOGLE_ANALYTICS, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(GOOGLE_ANALYTICS)) == 1)
 477                     .putBoolean(FACEBOOK_CLICK_IDS, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(FACEBOOK_CLICK_IDS)) == 1)
 478                     .putBoolean(TWITTER_AMP_REDIRECTS, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(TWITTER_AMP_REDIRECTS)) == 1)
 479                     .putString(SEARCH, importPreferencesCursor.getString(importPreferencesCursor.getColumnIndex(SEARCH)))
 480                     .putString(SEARCH_CUSTOM_URL, importPreferencesCursor.getString(importPreferencesCursor.getColumnIndex(SEARCH_CUSTOM_URL)))
 481                     .putString(PROXY, importPreferencesCursor.getString(importPreferencesCursor.getColumnIndex(PROXY)))
 482                     .putString(PROXY_CUSTOM_URL, importPreferencesCursor.getString(importPreferencesCursor.getColumnIndex(PROXY_CUSTOM_URL)))
 483                     .putBoolean(FULL_SCREEN_BROWSING_MODE, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(FULL_SCREEN_BROWSING_MODE)) == 1)
 484                     .putBoolean(HIDE_APP_BAR, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(HIDE_APP_BAR)) == 1)
 485                     .putBoolean(CLEAR_EVERYTHING, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(CLEAR_EVERYTHING)) == 1)
 486                     .putBoolean(CLEAR_COOKIES, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(CLEAR_COOKIES)) == 1)
 487                     .putBoolean(CLEAR_DOM_STORAGE, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(CLEAR_DOM_STORAGE)) == 1)
 488                     // Clear form data can be removed once the minimum API >= 26.
 489                     .putBoolean(CLEAR_FORM_DATA, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(CLEAR_FORM_DATA)) == 1)
 490                     .putBoolean(CLEAR_LOGCAT, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(CLEAR_LOGCAT)) == 1)
 491                     .putBoolean(CLEAR_CACHE, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(CLEAR_CACHE)) == 1)
 492                     .putString(HOMEPAGE, importPreferencesCursor.getString(importPreferencesCursor.getColumnIndex(HOMEPAGE)))
 493                     .putString(FONT_SIZE, importPreferencesCursor.getString(importPreferencesCursor.getColumnIndex(FONT_SIZE)))
 494                     .putBoolean(OPEN_INTENTS_IN_NEW_TAB, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(OPEN_INTENTS_IN_NEW_TAB)) == 1)
 495                     .putBoolean(SWIPE_TO_REFRESH, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(SWIPE_TO_REFRESH)) == 1)
 496                     .putBoolean(SCROLL_APP_BAR, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(SCROLL_APP_BAR)) == 1)
 497                     .putBoolean(DISPLAY_ADDITIONAL_APP_BAR_ICONS, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(DISPLAY_ADDITIONAL_APP_BAR_ICONS)) == 1)
 498                     .putString(APP_THEME, importPreferencesCursor.getString(importPreferencesCursor.getColumnIndex(APP_THEME)))
 499                     .putString(WEBVIEW_THEME, importPreferencesCursor.getString(importPreferencesCursor.getColumnIndex(WEBVIEW_THEME)))
 500                     .putBoolean(WIDE_VIEWPORT, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(WIDE_VIEWPORT)) == 1)
 501                     .putBoolean(DISPLAY_WEBPAGE_IMAGES, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(DISPLAY_WEBPAGE_IMAGES)) == 1)
 502                     .apply();
 503
 504             // Close the preferences cursor.
 505             importPreferencesCursor.close();
 506
 507             // Close the import database.
 508             importDatabase.close();
 509
 510             // Delete the temporary import file database, journal, and other related auxiliary files.
 511             SQLiteDatabase.deleteDatabase(temporaryImportFile);
 512
 513             // Import successful.
 514             return IMPORT_SUCCESSFUL;
 515         } catch (Exception exception) {
 516             // Return the import error.
 517             return exception.toString();
 518         }
 519     }
 520
 521     public String exportUnencrypted(OutputStream exportFileOutputStream, Context context) {
 522         try {
 523             // Create a temporary export file.
 524             File temporaryExportFile = File.createTempFile("temporary_export_file", null, context.getCacheDir());
 525
 526             // Create the temporary export database.
 527             SQLiteDatabase temporaryExportDatabase = SQLiteDatabase.openOrCreateDatabase(temporaryExportFile, null);
 528
 529             // Set the temporary export database version number.
 530             temporaryExportDatabase.setVersion(SCHEMA_VERSION);
 531
 532
 533             // Create the temporary export database bookmarks table.
 534             temporaryExportDatabase.execSQL(BookmarksDatabaseHelper.CREATE_BOOKMARKS_TABLE);
 535
 536             // Open the bookmarks database.  The `0` specifies the database version, but that is ignored and set instead using a constant in `BookmarksDatabaseHelper`.
 537             BookmarksDatabaseHelper bookmarksDatabaseHelper = new BookmarksDatabaseHelper(context, null, null, 0);
 538
 539             // Get a full bookmarks cursor.
 540             Cursor bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarks();
 541
 542             // Move to the first bookmark.
 543             bookmarksCursor.moveToFirst();
 544
 545             // Copy the data from the bookmarks cursor into the export database.
 546             for (int i = 0; i < bookmarksCursor.getCount(); i++) {
 547                 // Extract the record from the cursor and store the data in a ContentValues.
 548                 ContentValues bookmarksContentValues = new ContentValues();
 549                 bookmarksContentValues.put(BookmarksDatabaseHelper.BOOKMARK_NAME, bookmarksCursor.getString(bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_NAME)));
 550                 bookmarksContentValues.put(BookmarksDatabaseHelper.BOOKMARK_URL, bookmarksCursor.getString(bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_URL)));
 551                 bookmarksContentValues.put(BookmarksDatabaseHelper.PARENT_FOLDER, bookmarksCursor.getString(bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.PARENT_FOLDER)));
 552                 bookmarksContentValues.put(BookmarksDatabaseHelper.DISPLAY_ORDER, bookmarksCursor.getInt(bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.DISPLAY_ORDER)));
 553                 bookmarksContentValues.put(BookmarksDatabaseHelper.IS_FOLDER, bookmarksCursor.getInt(bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.IS_FOLDER)));
 554                 bookmarksContentValues.put(BookmarksDatabaseHelper.FAVORITE_ICON, bookmarksCursor.getBlob(bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.FAVORITE_ICON)));
 555
 556                 // Insert the record into the temporary export database.
 557                 temporaryExportDatabase.insert(BookmarksDatabaseHelper.BOOKMARKS_TABLE, null, bookmarksContentValues);
 558
 559                 // Advance to the next record.
 560                 bookmarksCursor.moveToNext();
 561             }
 562
 563             // Close the bookmarks database.
 564             bookmarksCursor.close();
 565             bookmarksDatabaseHelper.close();
 566
 567
 568             // Create the temporary export database domains table.
 569             temporaryExportDatabase.execSQL(DomainsDatabaseHelper.CREATE_DOMAINS_TABLE);
 570
 571             // Open the domains database.  The `0` specifies the database version, but that is ignored and set instead using a constant in `DomainsDatabaseHelper`.
 572             DomainsDatabaseHelper domainsDatabaseHelper = new DomainsDatabaseHelper(context, null, null, 0);
 573
 574             // Get a full domains database cursor.
 575             Cursor domainsCursor = domainsDatabaseHelper.getCompleteCursorOrderedByDomain();
 576
 577             // Move to the first domain.
 578             domainsCursor.moveToFirst();
 579
 580             // Copy the data from the domains cursor into the export database.
 581             for (int i = 0; i < domainsCursor.getCount(); i++) {
 582                 // Extract the record from the cursor and store the data in a ContentValues.
 583                 ContentValues domainsContentValues = new ContentValues();
 584                 domainsContentValues.put(DomainsDatabaseHelper.DOMAIN_NAME, domainsCursor.getString(domainsCursor.getColumnIndex(DomainsDatabaseHelper.DOMAIN_NAME)));
 585                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_JAVASCRIPT, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_JAVASCRIPT)));
 586                 domainsContentValues.put(DomainsDatabaseHelper.COOKIES, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.COOKIES)));
 587                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_DOM_STORAGE, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_DOM_STORAGE)));
 588                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_FORM_DATA, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_FORM_DATA)));
 589                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_EASYLIST, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_EASYLIST)));
 590                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_EASYPRIVACY, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_EASYPRIVACY)));
 591                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_FANBOYS_ANNOYANCE_LIST, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_FANBOYS_ANNOYANCE_LIST)));
 592                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_FANBOYS_SOCIAL_BLOCKING_LIST, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_FANBOYS_SOCIAL_BLOCKING_LIST)));
 593                 domainsContentValues.put(DomainsDatabaseHelper.ULTRALIST, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.ULTRALIST)));
 594                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_ULTRAPRIVACY, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_ULTRAPRIVACY)));
 595                 domainsContentValues.put(DomainsDatabaseHelper.BLOCK_ALL_THIRD_PARTY_REQUESTS, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.BLOCK_ALL_THIRD_PARTY_REQUESTS)));
 596                 domainsContentValues.put(DomainsDatabaseHelper.USER_AGENT, domainsCursor.getString(domainsCursor.getColumnIndex(DomainsDatabaseHelper.USER_AGENT)));
 597                 domainsContentValues.put(DomainsDatabaseHelper.FONT_SIZE, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.FONT_SIZE)));
 598                 domainsContentValues.put(DomainsDatabaseHelper.SWIPE_TO_REFRESH, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.SWIPE_TO_REFRESH)));
 599                 domainsContentValues.put(DomainsDatabaseHelper.WEBVIEW_THEME, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.WEBVIEW_THEME)));
 600                 domainsContentValues.put(DomainsDatabaseHelper.WIDE_VIEWPORT, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.WIDE_VIEWPORT)));
 601                 domainsContentValues.put(DomainsDatabaseHelper.DISPLAY_IMAGES, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.DISPLAY_IMAGES)));
 602                 domainsContentValues.put(DomainsDatabaseHelper.PINNED_SSL_CERTIFICATE, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.PINNED_SSL_CERTIFICATE)));
 603                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_TO_COMMON_NAME, domainsCursor.getString(domainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_TO_COMMON_NAME)));
 604                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_TO_ORGANIZATION, domainsCursor.getString(domainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_TO_ORGANIZATION)));
 605                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_TO_ORGANIZATIONAL_UNIT, domainsCursor.getString(domainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_TO_ORGANIZATIONAL_UNIT)));
 606                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_BY_COMMON_NAME, domainsCursor.getString(domainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_BY_COMMON_NAME)));
 607                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_BY_ORGANIZATION, domainsCursor.getString(domainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_BY_ORGANIZATION)));
 608                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_BY_ORGANIZATIONAL_UNIT, domainsCursor.getString(domainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_BY_ORGANIZATIONAL_UNIT)));
 609                 domainsContentValues.put(DomainsDatabaseHelper.SSL_START_DATE, domainsCursor.getLong(domainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_START_DATE)));
 610                 domainsContentValues.put(DomainsDatabaseHelper.SSL_END_DATE, domainsCursor.getLong(domainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_END_DATE)));
 611                 domainsContentValues.put(DomainsDatabaseHelper.PINNED_IP_ADDRESSES, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.PINNED_IP_ADDRESSES)));
 612                 domainsContentValues.put(DomainsDatabaseHelper.IP_ADDRESSES, domainsCursor.getString(domainsCursor.getColumnIndex(DomainsDatabaseHelper.IP_ADDRESSES)));
 613
 614                 // Insert the record into the temporary export database.
 615                 temporaryExportDatabase.insert(DomainsDatabaseHelper.DOMAINS_TABLE, null, domainsContentValues);
 616
 617                 // Advance to the next record.
 618                 domainsCursor.moveToNext();
 619             }
 620
 621             // Close the domains database.
 622             domainsCursor.close();
 623             domainsDatabaseHelper.close();
 624
 625
 626             // Prepare the preferences table SQL creation string.
 627             String CREATE_PREFERENCES_TABLE = "CREATE TABLE " + PREFERENCES_TABLE + " (" +
 628                     _ID + " INTEGER PRIMARY KEY, " +
 629                     JAVASCRIPT + " BOOLEAN, " +
 630                     COOKIES + " BOOLEAN, " +
 631                     DOM_STORAGE + " BOOLEAN, " +
 632                     SAVE_FORM_DATA + " BOOLEAN, " +
 633                     USER_AGENT + " TEXT, " +
 634                     CUSTOM_USER_AGENT + " TEXT, " +
 635                     INCOGNITO_MODE + " BOOLEAN, " +
 636                     ALLOW_SCREENSHOTS + " BOOLEAN, " +
 637                     EASYLIST + " BOOLEAN, " +
 638                     EASYPRIVACY + " BOOLEAN, " +
 639                     FANBOYS_ANNOYANCE_LIST + " BOOLEAN, " +
 640                     FANBOYS_SOCIAL_BLOCKING_LIST + " BOOLEAN, " +
 641                     ULTRALIST + " BOOLEAN, " +
 642                     ULTRAPRIVACY + " BOOLEAN, " +
 643                     BLOCK_ALL_THIRD_PARTY_REQUESTS + " BOOLEAN, " +
 644                     GOOGLE_ANALYTICS + " BOOLEAN, " +
 645                     FACEBOOK_CLICK_IDS + " BOOLEAN, " +
 646                     TWITTER_AMP_REDIRECTS + " BOOLEAN, " +
 647                     SEARCH + " TEXT, " +
 648                     SEARCH_CUSTOM_URL + " TEXT, " +
 649                     PROXY + " TEXT, " +
 650                     PROXY_CUSTOM_URL + " TEXT, " +
 651                     FULL_SCREEN_BROWSING_MODE + " BOOLEAN, " +
 652                     HIDE_APP_BAR + " BOOLEAN, " +
 653                     CLEAR_EVERYTHING + " BOOLEAN, " +
 654                     CLEAR_COOKIES + " BOOLEAN, " +
 655                     CLEAR_DOM_STORAGE + " BOOLEAN, " +
 656                     CLEAR_FORM_DATA + " BOOLEAN, " +
 657                     CLEAR_LOGCAT + " BOOLEAN, " +
 658                     CLEAR_CACHE + " BOOLEAN, " +
 659                     HOMEPAGE + " TEXT, " +
 660                     FONT_SIZE + " TEXT, " +
 661                     OPEN_INTENTS_IN_NEW_TAB + " BOOLEAN, " +
 662                     SWIPE_TO_REFRESH + " BOOLEAN, " +
 663                     SCROLL_APP_BAR + " BOOLEAN, " +
 664                     DISPLAY_ADDITIONAL_APP_BAR_ICONS + " BOOLEAN, " +
 665                     APP_THEME + " TEXT, " +
 666                     WEBVIEW_THEME + " TEXT, " +
 667                     WIDE_VIEWPORT + " BOOLEAN, " +
 668                     DISPLAY_WEBPAGE_IMAGES + " BOOLEAN)";
 669
 670             // Create the temporary export database preferences table.
 671             temporaryExportDatabase.execSQL(CREATE_PREFERENCES_TABLE);
 672
 673             // Get a handle for the shared preference.
 674             SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(context);
 675
 676             // Create a ContentValues with the preferences information.
 677             ContentValues preferencesContentValues = new ContentValues();
 678             preferencesContentValues.put(JAVASCRIPT, sharedPreferences.getBoolean(JAVASCRIPT, false));
 679             preferencesContentValues.put(COOKIES, sharedPreferences.getBoolean(COOKIES, false));
 680             preferencesContentValues.put(DOM_STORAGE, sharedPreferences.getBoolean(DOM_STORAGE, false));
 681             preferencesContentValues.put(SAVE_FORM_DATA, sharedPreferences.getBoolean(SAVE_FORM_DATA, false));  // Save form data can be removed once the minimum API >= 26.
 682             preferencesContentValues.put(USER_AGENT, sharedPreferences.getString(USER_AGENT, context.getString(R.string.user_agent_default_value)));
 683             preferencesContentValues.put(CUSTOM_USER_AGENT, sharedPreferences.getString(CUSTOM_USER_AGENT, context.getString(R.string.custom_user_agent_default_value)));
 684             preferencesContentValues.put(INCOGNITO_MODE, sharedPreferences.getBoolean(INCOGNITO_MODE, false));
 685             preferencesContentValues.put(ALLOW_SCREENSHOTS, sharedPreferences.getBoolean(ALLOW_SCREENSHOTS, false));
 686             preferencesContentValues.put(EASYLIST, sharedPreferences.getBoolean(EASYLIST, true));
 687             preferencesContentValues.put(EASYPRIVACY, sharedPreferences.getBoolean(EASYPRIVACY, true));
 688             preferencesContentValues.put(FANBOYS_ANNOYANCE_LIST, sharedPreferences.getBoolean(FANBOYS_ANNOYANCE_LIST, true));
 689             preferencesContentValues.put(FANBOYS_SOCIAL_BLOCKING_LIST, sharedPreferences.getBoolean(FANBOYS_SOCIAL_BLOCKING_LIST, true));
 690             preferencesContentValues.put(ULTRALIST, sharedPreferences.getBoolean(ULTRALIST, true));
 691             preferencesContentValues.put(ULTRAPRIVACY, sharedPreferences.getBoolean(ULTRAPRIVACY, true));
 692             preferencesContentValues.put(BLOCK_ALL_THIRD_PARTY_REQUESTS, sharedPreferences.getBoolean(BLOCK_ALL_THIRD_PARTY_REQUESTS, false));
 693             preferencesContentValues.put(GOOGLE_ANALYTICS, sharedPreferences.getBoolean(GOOGLE_ANALYTICS, true));
 694             preferencesContentValues.put(FACEBOOK_CLICK_IDS, sharedPreferences.getBoolean(FACEBOOK_CLICK_IDS, true));
 695             preferencesContentValues.put(TWITTER_AMP_REDIRECTS, sharedPreferences.getBoolean(TWITTER_AMP_REDIRECTS, true));
 696             preferencesContentValues.put(SEARCH, sharedPreferences.getString(SEARCH, context.getString(R.string.search_default_value)));
 697             preferencesContentValues.put(SEARCH_CUSTOM_URL, sharedPreferences.getString(SEARCH_CUSTOM_URL, context.getString(R.string.search_custom_url_default_value)));
 698             preferencesContentValues.put(PROXY, sharedPreferences.getString(PROXY, context.getString(R.string.proxy_default_value)));
 699             preferencesContentValues.put(PROXY_CUSTOM_URL, sharedPreferences.getString(PROXY_CUSTOM_URL, context.getString(R.string.proxy_custom_url_default_value)));
 700             preferencesContentValues.put(FULL_SCREEN_BROWSING_MODE, sharedPreferences.getBoolean(FULL_SCREEN_BROWSING_MODE, false));
 701             preferencesContentValues.put(HIDE_APP_BAR, sharedPreferences.getBoolean(HIDE_APP_BAR, true));
 702             preferencesContentValues.put(CLEAR_EVERYTHING, sharedPreferences.getBoolean(CLEAR_EVERYTHING, true));
 703             preferencesContentValues.put(CLEAR_COOKIES, sharedPreferences.getBoolean(CLEAR_COOKIES, true));
 704             preferencesContentValues.put(CLEAR_DOM_STORAGE, sharedPreferences.getBoolean(CLEAR_DOM_STORAGE, true));
 705             preferencesContentValues.put(CLEAR_FORM_DATA, sharedPreferences.getBoolean(CLEAR_FORM_DATA, true));  // Clear form data can be removed once the minimum API >= 26.
 706             preferencesContentValues.put(CLEAR_LOGCAT, sharedPreferences.getBoolean(CLEAR_LOGCAT, true));
 707             preferencesContentValues.put(CLEAR_CACHE, sharedPreferences.getBoolean(CLEAR_CACHE, true));
 708             preferencesContentValues.put(HOMEPAGE, sharedPreferences.getString(HOMEPAGE, context.getString(R.string.homepage_default_value)));
 709             preferencesContentValues.put(FONT_SIZE, sharedPreferences.getString(FONT_SIZE, context.getString(R.string.font_size_default_value)));
 710             preferencesContentValues.put(OPEN_INTENTS_IN_NEW_TAB, sharedPreferences.getBoolean(OPEN_INTENTS_IN_NEW_TAB, true));
 711             preferencesContentValues.put(SWIPE_TO_REFRESH, sharedPreferences.getBoolean(SWIPE_TO_REFRESH, true));
 712             preferencesContentValues.put(SCROLL_APP_BAR, sharedPreferences.getBoolean(SCROLL_APP_BAR, true));
 713             preferencesContentValues.put(DISPLAY_ADDITIONAL_APP_BAR_ICONS, sharedPreferences.getBoolean(DISPLAY_ADDITIONAL_APP_BAR_ICONS, false));
 714             preferencesContentValues.put(APP_THEME, sharedPreferences.getString(APP_THEME, context.getString(R.string.app_theme_default_value)));
 715             preferencesContentValues.put(WEBVIEW_THEME, sharedPreferences.getString(WEBVIEW_THEME, context.getString(R.string.webview_theme_default_value)));
 716             preferencesContentValues.put(WIDE_VIEWPORT, sharedPreferences.getBoolean(WIDE_VIEWPORT, true));
 717             preferencesContentValues.put(DISPLAY_WEBPAGE_IMAGES, sharedPreferences.getBoolean(DISPLAY_WEBPAGE_IMAGES, true));
 718
 719             // Insert the preferences into the temporary export database.
 720             temporaryExportDatabase.insert(PREFERENCES_TABLE, null, preferencesContentValues);
 721
 722             // Close the temporary export database.
 723             temporaryExportDatabase.close();
 724
 725
 726             // Create the temporary export file input stream.
 727             FileInputStream temporaryExportFileInputStream = new FileInputStream(temporaryExportFile);
 728
 729             // Create a byte array.
 730             byte[] transferByteArray = new byte[1024];
 731
 732             // Create an integer to track the number of bytes read.
 733             int bytesRead;
 734
 735             // Copy the temporary export file to the export file output stream.
 736             while ((bytesRead = temporaryExportFileInputStream.read(transferByteArray)) > 0) {
 737                 exportFileOutputStream.write(transferByteArray, 0, bytesRead);
 738             }
 739
 740             // Flush the export file output stream.
 741             exportFileOutputStream.flush();
 742
 743             // Close the file streams.
 744             temporaryExportFileInputStream.close();
 745             exportFileOutputStream.close();
 746
 747             // Delete the temporary export file database, journal, and other related auxiliary files.
 748             SQLiteDatabase.deleteDatabase(temporaryExportFile);
 749
 750             // Export successful.
 751             return EXPORT_SUCCESSFUL;
 752         } catch (Exception exception) {
 753             // Return the export error.
 754             return exception.toString();
 755         }
 756     }
 757 }