f0262d12b755fd9775f4ebde0173e9c63b3dbac3
[PrivacyBrowser.git] / 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 = 7;
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 ULTRAPRIVACY = "ultraprivacy";
61     private static final String BLOCK_ALL_THIRD_PARTY_REQUESTS = "block_all_third_party_requests";
62     private static final String GOOGLE_ANALYTICS = "google_analytics";
63     private static final String FACEBOOK_CLICK_IDS = "facebook_click_ids";
64     private static final String TWITTER_AMP_REDIRECTS = "twitter_amp_redirects";
65     private static final String PROXY_THROUGH_ORBOT = "proxy_through_orbot";
66     private static final String TOR_HOMEPAGE = "tor_homepage";
67     private static final String TOR_SEARCH = "tor_search";
68     private static final String TOR_SEARCH_CUSTOM_URL = "tor_search_custom_url";
69     private static final String SEARCH = "search";
70     private static final String SEARCH_CUSTOM_URL = "search_custom_url";
71     private static final String FULL_SCREEN_BROWSING_MODE = "full_screen_browsing_mode";
72     private static final String HIDE_APP_BAR = "hide_app_bar";
73     private static final String CLEAR_EVERYTHING = "clear_everything";
74     private static final String CLEAR_COOKIES = "clear_cookies";
75     private static final String CLEAR_DOM_STORAGE = "clear_dom_storage";
76     private static final String CLEAR_FORM_DATA = "clear_form_data";
77     private static final String CLEAR_CACHE = "clear_cache";
78     private static final String HOMEPAGE = "homepage";
79     private static final String FONT_SIZE = "font_size";
80     private static final String OPEN_INTENTS_IN_NEW_TAB = "open_intents_in_new_tab";
81     private static final String SWIPE_TO_REFRESH = "swipe_to_refresh";
82     private static final String SCROLL_APP_BAR = "scroll_app_bar";
83     private static final String DISPLAY_ADDITIONAL_APP_BAR_ICONS = "display_additional_app_bar_icons";
84     private static final String 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.ENABLE_ULTRAPRIVACY, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_ULTRAPRIVACY)));
131                 domainsContentValues.put(DomainsDatabaseHelper.BLOCK_ALL_THIRD_PARTY_REQUESTS, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.BLOCK_ALL_THIRD_PARTY_REQUESTS)));
132                 domainsContentValues.put(DomainsDatabaseHelper.USER_AGENT, domainsCursor.getString(domainsCursor.getColumnIndex(DomainsDatabaseHelper.USER_AGENT)));
133                 domainsContentValues.put(DomainsDatabaseHelper.FONT_SIZE, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.FONT_SIZE)));
134                 domainsContentValues.put(DomainsDatabaseHelper.SWIPE_TO_REFRESH, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.SWIPE_TO_REFRESH)));
135                 domainsContentValues.put(DomainsDatabaseHelper.NIGHT_MODE, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.NIGHT_MODE)));
136                 domainsContentValues.put(DomainsDatabaseHelper.WIDE_VIEWPORT, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.WIDE_VIEWPORT)));
137                 domainsContentValues.put(DomainsDatabaseHelper.DISPLAY_IMAGES, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.DISPLAY_IMAGES)));
138                 domainsContentValues.put(DomainsDatabaseHelper.PINNED_SSL_CERTIFICATE, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.PINNED_SSL_CERTIFICATE)));
139                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_TO_COMMON_NAME, domainsCursor.getString(domainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_TO_COMMON_NAME)));
140                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_TO_ORGANIZATION, domainsCursor.getString(domainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_TO_ORGANIZATION)));
141                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_TO_ORGANIZATIONAL_UNIT, domainsCursor.getString(domainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_TO_ORGANIZATIONAL_UNIT)));
142                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_BY_COMMON_NAME, domainsCursor.getString(domainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_BY_COMMON_NAME)));
143                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_BY_ORGANIZATION, domainsCursor.getString(domainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_BY_ORGANIZATION)));
144                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_BY_ORGANIZATIONAL_UNIT, domainsCursor.getString(domainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_BY_ORGANIZATIONAL_UNIT)));
145                 domainsContentValues.put(DomainsDatabaseHelper.SSL_START_DATE, domainsCursor.getLong(domainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_START_DATE)));
146                 domainsContentValues.put(DomainsDatabaseHelper.SSL_END_DATE, domainsCursor.getLong(domainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_END_DATE)));
147                 domainsContentValues.put(DomainsDatabaseHelper.PINNED_IP_ADDRESSES, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.PINNED_IP_ADDRESSES)));
148                 domainsContentValues.put(DomainsDatabaseHelper.IP_ADDRESSES, domainsCursor.getString(domainsCursor.getColumnIndex(DomainsDatabaseHelper.IP_ADDRESSES)));
149
150                 // Insert the record into the export database.
151                 exportDatabase.insert(DomainsDatabaseHelper.DOMAINS_TABLE, null, domainsContentValues);
152
153                 // Advance to the next record.
154                 domainsCursor.moveToNext();
155             }
156
157             // Close the domains database.
158             domainsCursor.close();
159             domainsDatabaseHelper.close();
160
161
162             // Create the export database bookmarks table.
163             exportDatabase.execSQL(BookmarksDatabaseHelper.CREATE_BOOKMARKS_TABLE);
164
165             // Open the bookmarks database.  The `0` specifies the database version, but that is ignored and set instead using a constant in `BookmarksDatabaseHelper`.
166             BookmarksDatabaseHelper bookmarksDatabaseHelper = new BookmarksDatabaseHelper(context, null, null, 0);
167
168             // Get a full bookmarks cursor.
169             Cursor bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarks();
170
171             // Move to the first bookmark.
172             bookmarksCursor.moveToFirst();
173
174             // Copy the data from the bookmarks cursor into the export database.
175             for (int i = 0; i < bookmarksCursor.getCount(); i++) {
176                 // Extract the record from the cursor and store the data in a ContentValues.
177                 ContentValues bookmarksContentValues = new ContentValues();
178                 bookmarksContentValues.put(BookmarksDatabaseHelper.BOOKMARK_NAME, bookmarksCursor.getString(bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_NAME)));
179                 bookmarksContentValues.put(BookmarksDatabaseHelper.BOOKMARK_URL, bookmarksCursor.getString(bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_URL)));
180                 bookmarksContentValues.put(BookmarksDatabaseHelper.PARENT_FOLDER, bookmarksCursor.getString(bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.PARENT_FOLDER)));
181                 bookmarksContentValues.put(BookmarksDatabaseHelper.DISPLAY_ORDER, bookmarksCursor.getInt(bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.DISPLAY_ORDER)));
182                 bookmarksContentValues.put(BookmarksDatabaseHelper.IS_FOLDER, bookmarksCursor.getInt(bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.IS_FOLDER)));
183                 bookmarksContentValues.put(BookmarksDatabaseHelper.FAVORITE_ICON, bookmarksCursor.getBlob(bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.FAVORITE_ICON)));
184
185                 // Insert the record into the export database.
186                 exportDatabase.insert(BookmarksDatabaseHelper.BOOKMARKS_TABLE, null, bookmarksContentValues);
187
188                 // Advance to the next record.
189                 bookmarksCursor.moveToNext();
190             }
191
192             // Close the bookmarks database.
193             bookmarksCursor.close();
194             bookmarksDatabaseHelper.close();
195
196
197             // Prepare the preferences table SQL creation string.
198             String CREATE_PREFERENCES_TABLE = "CREATE TABLE " + PREFERENCES_TABLE + " (" +
199                     _ID + " INTEGER PRIMARY KEY, " +
200                     JAVASCRIPT + " BOOLEAN, " +
201                     FIRST_PARTY_COOKIES + " BOOLEAN, " +
202                     THIRD_PARTY_COOKIES + " BOOLEAN, " +
203                     DOM_STORAGE + " BOOLEAN, " +
204                     SAVE_FORM_DATA + " BOOLEAN, " +
205                     USER_AGENT + " TEXT, " +
206                     CUSTOM_USER_AGENT + " TEXT, " +
207                     INCOGNITO_MODE + " BOOLEAN, " +
208                     DO_NOT_TRACK + " BOOLEAN, " +
209                     ALLOW_SCREENSHOTS + " BOOLEAN, " +
210                     EASYLIST + " BOOLEAN, " +
211                     EASYPRIVACY + " BOOLEAN, " +
212                     FANBOYS_ANNOYANCE_LIST + " BOOLEAN, " +
213                     FANBOYS_SOCIAL_BLOCKING_LIST + " BOOLEAN, " +
214                     ULTRAPRIVACY + " BOOLEAN, " +
215                     BLOCK_ALL_THIRD_PARTY_REQUESTS + " BOOLEAN, " +
216                     GOOGLE_ANALYTICS + " BOOLEAN, " +
217                     FACEBOOK_CLICK_IDS + " BOOLEAN, " +
218                     TWITTER_AMP_REDIRECTS + " BOOLEAN, " +
219                     PROXY_THROUGH_ORBOT + " BOOLEAN, " +
220                     TOR_HOMEPAGE + " TEXT, " +
221                     TOR_SEARCH + " TEXT, " +
222                     TOR_SEARCH_CUSTOM_URL + " TEXT, " +
223                     SEARCH + " TEXT, " +
224                     SEARCH_CUSTOM_URL + " TEXT, " +
225                     FULL_SCREEN_BROWSING_MODE + " BOOLEAN, " +
226                     HIDE_APP_BAR + " BOOLEAN, " +
227                     CLEAR_EVERYTHING + " BOOLEAN, " +
228                     CLEAR_COOKIES + " BOOLEAN, " +
229                     CLEAR_DOM_STORAGE + " BOOLEAN, " +
230                     CLEAR_FORM_DATA + " BOOLEAN, " +
231                     CLEAR_CACHE + " BOOLEAN, " +
232                     HOMEPAGE + " TEXT, " +
233                     FONT_SIZE + " TEXT, " +
234                     OPEN_INTENTS_IN_NEW_TAB + " BOOLEAN, " +
235                     SWIPE_TO_REFRESH + " BOOLEAN, " +
236                     SCROLL_APP_BAR + " BOOLEAN, " +
237                     DISPLAY_ADDITIONAL_APP_BAR_ICONS + " BOOLEAN, " +
238                     DOWNLOAD_WITH_EXTERNAL_APP + " BOOLEAN, " +
239                     DARK_THEME + " BOOLEAN, " +
240                     NIGHT_MODE + " BOOLEAN, " +
241                     WIDE_VIEWPORT + " BOOLEAN, " +
242                     DISPLAY_WEBPAGE_IMAGES + " BOOLEAN)";
243
244             // Create the export database preferences table.
245             exportDatabase.execSQL(CREATE_PREFERENCES_TABLE);
246
247             // Get a handle for the shared preference.
248             SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(context);
249
250             // Create a ContentValues with the preferences information.
251             ContentValues preferencesContentValues = new ContentValues();
252             preferencesContentValues.put(JAVASCRIPT, sharedPreferences.getBoolean(JAVASCRIPT, false));
253             preferencesContentValues.put(FIRST_PARTY_COOKIES, sharedPreferences.getBoolean(FIRST_PARTY_COOKIES, false));
254             preferencesContentValues.put(THIRD_PARTY_COOKIES, sharedPreferences.getBoolean(THIRD_PARTY_COOKIES, false));
255             preferencesContentValues.put(DOM_STORAGE, sharedPreferences.getBoolean(DOM_STORAGE, false));
256             preferencesContentValues.put(SAVE_FORM_DATA, sharedPreferences.getBoolean(SAVE_FORM_DATA, false));  // Save form data can be removed once the minimum API >= 26.
257             preferencesContentValues.put(USER_AGENT, sharedPreferences.getString(USER_AGENT, context.getString(R.string.user_agent_default_value)));
258             preferencesContentValues.put(CUSTOM_USER_AGENT, sharedPreferences.getString(CUSTOM_USER_AGENT, context.getString(R.string.custom_user_agent_default_value)));
259             preferencesContentValues.put(INCOGNITO_MODE, sharedPreferences.getBoolean(INCOGNITO_MODE, false));
260             preferencesContentValues.put(DO_NOT_TRACK, sharedPreferences.getBoolean(DO_NOT_TRACK, false));
261             preferencesContentValues.put(ALLOW_SCREENSHOTS, sharedPreferences.getBoolean(ALLOW_SCREENSHOTS, false));
262             preferencesContentValues.put(EASYLIST, sharedPreferences.getBoolean(EASYLIST, true));
263             preferencesContentValues.put(EASYPRIVACY, sharedPreferences.getBoolean(EASYPRIVACY, true));
264             preferencesContentValues.put(FANBOYS_ANNOYANCE_LIST, sharedPreferences.getBoolean(FANBOYS_ANNOYANCE_LIST, true));
265             preferencesContentValues.put(FANBOYS_SOCIAL_BLOCKING_LIST, sharedPreferences.getBoolean(FANBOYS_SOCIAL_BLOCKING_LIST, true));
266             preferencesContentValues.put(ULTRAPRIVACY, sharedPreferences.getBoolean(ULTRAPRIVACY, true));
267             preferencesContentValues.put(BLOCK_ALL_THIRD_PARTY_REQUESTS, sharedPreferences.getBoolean(BLOCK_ALL_THIRD_PARTY_REQUESTS, false));
268             preferencesContentValues.put(GOOGLE_ANALYTICS, sharedPreferences.getBoolean(GOOGLE_ANALYTICS, true));
269             preferencesContentValues.put(FACEBOOK_CLICK_IDS, sharedPreferences.getBoolean(FACEBOOK_CLICK_IDS, true));
270             preferencesContentValues.put(TWITTER_AMP_REDIRECTS, sharedPreferences.getBoolean(TWITTER_AMP_REDIRECTS, true));
271             preferencesContentValues.put(PROXY_THROUGH_ORBOT, sharedPreferences.getBoolean(PROXY_THROUGH_ORBOT, false));
272             preferencesContentValues.put(TOR_HOMEPAGE, sharedPreferences.getString(TOR_HOMEPAGE, context.getString(R.string.tor_homepage_default_value)));
273             preferencesContentValues.put(TOR_SEARCH, sharedPreferences.getString(TOR_SEARCH, context.getString(R.string.tor_search_default_value)));
274             preferencesContentValues.put(TOR_SEARCH_CUSTOM_URL, sharedPreferences.getString(TOR_SEARCH_CUSTOM_URL, context.getString(R.string.tor_search_custom_url_default_value)));
275             preferencesContentValues.put(SEARCH, sharedPreferences.getString(SEARCH, context.getString(R.string.search_default_value)));
276             preferencesContentValues.put(SEARCH_CUSTOM_URL, sharedPreferences.getString(SEARCH_CUSTOM_URL, context.getString(R.string.search_custom_url_default_value)));
277             preferencesContentValues.put(FULL_SCREEN_BROWSING_MODE, sharedPreferences.getBoolean(FULL_SCREEN_BROWSING_MODE, false));
278             preferencesContentValues.put(HIDE_APP_BAR, sharedPreferences.getBoolean(HIDE_APP_BAR, true));
279             preferencesContentValues.put(CLEAR_EVERYTHING, sharedPreferences.getBoolean(CLEAR_EVERYTHING, true));
280             preferencesContentValues.put(CLEAR_COOKIES, sharedPreferences.getBoolean(CLEAR_COOKIES, true));
281             preferencesContentValues.put(CLEAR_DOM_STORAGE, sharedPreferences.getBoolean(CLEAR_DOM_STORAGE, true));
282             preferencesContentValues.put(CLEAR_FORM_DATA, sharedPreferences.getBoolean(CLEAR_FORM_DATA, true));  // Clear form data can be removed once the minimum API >= 26.
283             preferencesContentValues.put(CLEAR_CACHE, sharedPreferences.getBoolean(CLEAR_CACHE, true));
284             preferencesContentValues.put(HOMEPAGE, sharedPreferences.getString(HOMEPAGE, context.getString(R.string.homepage_default_value)));
285             preferencesContentValues.put(FONT_SIZE, sharedPreferences.getString(FONT_SIZE, context.getString(R.string.font_size_default_value)));
286             preferencesContentValues.put(OPEN_INTENTS_IN_NEW_TAB, sharedPreferences.getBoolean(OPEN_INTENTS_IN_NEW_TAB, true));
287             preferencesContentValues.put(SWIPE_TO_REFRESH, sharedPreferences.getBoolean(SWIPE_TO_REFRESH, true));
288             preferencesContentValues.put(SCROLL_APP_BAR, sharedPreferences.getBoolean(SCROLL_APP_BAR, true));
289             preferencesContentValues.put(DISPLAY_ADDITIONAL_APP_BAR_ICONS, sharedPreferences.getBoolean(DISPLAY_ADDITIONAL_APP_BAR_ICONS, false));
290             preferencesContentValues.put(DOWNLOAD_WITH_EXTERNAL_APP, sharedPreferences.getBoolean(DOWNLOAD_WITH_EXTERNAL_APP, false));
291             preferencesContentValues.put(DARK_THEME, sharedPreferences.getBoolean(DARK_THEME, false));
292             preferencesContentValues.put(NIGHT_MODE, sharedPreferences.getBoolean(NIGHT_MODE, false));
293             preferencesContentValues.put(WIDE_VIEWPORT, sharedPreferences.getBoolean(WIDE_VIEWPORT, true));
294             preferencesContentValues.put(DISPLAY_WEBPAGE_IMAGES, sharedPreferences.getBoolean(DISPLAY_WEBPAGE_IMAGES, true));
295
296             // Insert the preferences into the export database.
297             exportDatabase.insert(PREFERENCES_TABLE, null, preferencesContentValues);
298
299             // Close the export database.
300             exportDatabase.close();
301
302             // Convert the database file to a string.
303             String exportFileString = exportFile.toString();
304
305             // Create strings for the temporary database files.
306             String journalFileString = exportFileString + "-journal";
307
308             // Get `Files` for the temporary database files.
309             File journalFile = new File(journalFileString);
310
311             // Delete the Journal file if it exists.
312             if (journalFile.exists()) {
313                 //noinspection ResultOfMethodCallIgnored
314                 journalFile.delete();
315             }
316
317             // Export successful.
318             return EXPORT_SUCCESSFUL;
319         } catch (Exception exception) {
320             // Return the export error.
321             return exception.toString();
322         }
323     }
324
325     public String importUnencrypted(File importFile, Context context){
326         try {
327             // Create a temporary import file string.
328             String temporaryImportFileString = context.getCacheDir() + "/" + "temporary_import_file";
329
330             // Get a handle for a temporary import file.
331             File temporaryImportFile = new File(temporaryImportFileString);
332
333             // Delete the temporary import file if it already exists.
334             if (temporaryImportFile.exists()) {
335                 //noinspection ResultOfMethodCallIgnored
336                 temporaryImportFile.delete();
337             }
338
339             // Create input and output streams.
340             InputStream importFileInputStream = new FileInputStream(importFile);
341             OutputStream temporaryImportFileOutputStream = new FileOutputStream(temporaryImportFile);
342
343             // Create a byte array.
344             byte[] transferByteArray = new byte[1024];
345
346             // Create an integer to track the number of bytes read.
347             int bytesRead;
348
349             // Copy the import file to the temporary import file.  Once the minimum API >= 26 `Files.copy` can be used instead.
350             while ((bytesRead = importFileInputStream.read(transferByteArray)) > 0) {
351                 temporaryImportFileOutputStream.write(transferByteArray, 0, bytesRead);
352             }
353
354             // Close the file streams.
355             importFileInputStream.close();
356             temporaryImportFileOutputStream.close();
357
358
359             // Get a handle for the shared preference.
360             SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(context);
361
362             // Open the import database.  Once the minimum API >= 27 the file can be opened directly without using the string.
363             SQLiteDatabase importDatabase = SQLiteDatabase.openDatabase(temporaryImportFileString, null, SQLiteDatabase.OPEN_READWRITE);
364
365             // Get the database version.
366             int importDatabaseVersion = importDatabase.getVersion();
367
368             // Upgrade the database if needed.
369             if (importDatabaseVersion < SCHEMA_VERSION) {
370                 switch (importDatabaseVersion){
371                     // Upgrade from schema version 1.
372                     case 1:
373                         // Add the download with external app column to the preferences table.
374                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + DOWNLOAD_WITH_EXTERNAL_APP + " BOOLEAN");
375
376                         // Get the current setting for downloading with an external app.
377                         boolean downloadWithExternalApp = sharedPreferences.getBoolean(DOWNLOAD_WITH_EXTERNAL_APP, false);
378
379                         // Set the download with external app preference to the current value.
380                         if (downloadWithExternalApp) {
381                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + DOWNLOAD_WITH_EXTERNAL_APP + " = " + 1);
382                         } else {
383                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + DOWNLOAD_WITH_EXTERNAL_APP + " = " + 0);
384                         }
385
386                     // Upgrade from schema version 2.
387                     case 2:
388                         // 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
389                         // https://developer.android.com/reference/android/database/sqlite/package-summary
390                         // 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.
391
392                         // Get a cursor with the current `default_font_size` value.
393                         Cursor importDatabasePreferenceCursor = importDatabase.rawQuery("SELECT default_font_size FROM " + PREFERENCES_TABLE, null);
394
395                         // Move to the beginning fo the cursor.
396                         importDatabasePreferenceCursor.moveToFirst();
397
398                         // Get the current value in `default_font_size`.
399                         String fontSize = importDatabasePreferenceCursor.getString(importDatabasePreferenceCursor.getColumnIndex("default_font_size"));
400
401                         // Close the cursor.
402                         importDatabasePreferenceCursor.close();
403
404                         // Create a new column named `font_size`.
405                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + FONT_SIZE + " TEXT");
406
407                         // Place the font size string in the new column.
408                         importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + FONT_SIZE + " = " + fontSize);
409
410                     // Upgrade from schema version 3.
411                     case 3:
412                         // Add the Pinned IP Addresses columns to the domains table.
413                         importDatabase.execSQL("ALTER TABLE " + DomainsDatabaseHelper.DOMAINS_TABLE + " ADD COLUMN " + DomainsDatabaseHelper.PINNED_IP_ADDRESSES + " BOOLEAN");
414                         importDatabase.execSQL("ALTER TABLE " + DomainsDatabaseHelper.DOMAINS_TABLE + " ADD COLUMN " + DomainsDatabaseHelper.IP_ADDRESSES + " TEXT");
415
416                     // Upgrade from schema version 4.
417                     case 4:
418                         // Add the hide and scroll app bar columns to the preferences table.
419                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + HIDE_APP_BAR + " BOOLEAN");
420                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + SCROLL_APP_BAR + " BOOLEAN");
421
422                         // Get the current hide and scroll app bar settings.
423                         boolean hideAppBar = sharedPreferences.getBoolean(HIDE_APP_BAR, true);
424                         boolean scrollAppBar = sharedPreferences.getBoolean(SCROLL_APP_BAR, true);
425
426                         // Populate the database with the current values.
427                         if (hideAppBar) {
428                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + HIDE_APP_BAR + " = " + 1);
429                         } else {
430                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + HIDE_APP_BAR + " = " + 0);
431                         }
432
433                         if (scrollAppBar) {
434                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + SCROLL_APP_BAR + " = " + 1);
435                         } else {
436                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + SCROLL_APP_BAR + " = " + 0);
437                         }
438
439                     // Upgrade from schema version 5.
440                     case 5:
441                         // Add the open intents in new tab column to the preferences table.
442                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + OPEN_INTENTS_IN_NEW_TAB + " BOOLEAN");
443
444                         // Get the current open intents in new tab preference.
445                         boolean openIntentsInNewTab = sharedPreferences.getBoolean(OPEN_INTENTS_IN_NEW_TAB, true);
446
447                         // Populate the database with the current value.
448                         if (openIntentsInNewTab) {
449                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + OPEN_INTENTS_IN_NEW_TAB + " = " + 1);
450                         } else {
451                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + OPEN_INTENTS_IN_NEW_TAB + " = " + 0);
452                         }
453
454                     // Upgrade from schema version 6.
455                     case 6:
456                         // Add the wide viewport column to the domains table.
457                         importDatabase.execSQL("ALTER TABLE " + DomainsDatabaseHelper.DOMAINS_TABLE + " ADD COLUMN " + DomainsDatabaseHelper.WIDE_VIEWPORT + " INTEGER");
458
459                         // Add the Google Analytics, Facebook Click IDs, Twitter AMP redirects, and wide viewport columns to the preferences table.
460                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + GOOGLE_ANALYTICS + " BOOLEAN");
461                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + FACEBOOK_CLICK_IDS + " BOOLEAN");
462                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + TWITTER_AMP_REDIRECTS + " BOOLEAN");
463                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + WIDE_VIEWPORT + " BOOLEAN");
464
465                         // Get the current preference values.
466                         boolean googleAnalytics = sharedPreferences.getBoolean(GOOGLE_ANALYTICS, true);
467                         boolean facebookClickIds = sharedPreferences.getBoolean(FACEBOOK_CLICK_IDS, true);
468                         boolean twitterAmpRedirects = sharedPreferences.getBoolean(TWITTER_AMP_REDIRECTS, true);
469                         boolean wideViewport = sharedPreferences.getBoolean(WIDE_VIEWPORT, true);
470
471                         // Populate the database with the current Google Analytics value.
472                         if (googleAnalytics) {
473                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + GOOGLE_ANALYTICS + " = " + 1);
474                         } else {
475                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + GOOGLE_ANALYTICS + " = " + 0);
476                         }
477
478                         // Populate the database with the current Facebook Click IDs value.
479                         if (facebookClickIds) {
480                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + FACEBOOK_CLICK_IDS + " = " + 1);
481                         } else {
482                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + FACEBOOK_CLICK_IDS + " = " + 0);
483                         }
484
485                         // Populate the database with the current Twitter AMP redirects value.
486                         if (twitterAmpRedirects) {
487                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + TWITTER_AMP_REDIRECTS + " = " + 1);
488                         } else {
489                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + TWITTER_AMP_REDIRECTS + " = " + 0);
490                         }
491
492                         // Populate the database with the current wide viewport value.
493                         if (wideViewport) {
494                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + WIDE_VIEWPORT + " = " + 1);
495                         } else {
496                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + WIDE_VIEWPORT + " = " + 0);
497                         }
498                 }
499             }
500
501             // Get a cursor for the domains table.
502             Cursor importDomainsCursor = importDatabase.rawQuery("SELECT * FROM " + DomainsDatabaseHelper.DOMAINS_TABLE + " ORDER BY " + DomainsDatabaseHelper.DOMAIN_NAME + " ASC", null);
503
504             // Delete the current domains database.
505             context.deleteDatabase(DomainsDatabaseHelper.DOMAINS_DATABASE);
506
507             // Create a new domains database.  The `0` specifies the database version, but that is ignored and set instead using a constant in `DomainsDatabaseHelper`.
508             DomainsDatabaseHelper domainsDatabaseHelper = new DomainsDatabaseHelper(context, null, null, 0);
509
510             // Move to the first domain.
511             importDomainsCursor.moveToFirst();
512
513             // Copy the data from the import domains cursor into the domains database.
514             for (int i = 0; i < importDomainsCursor.getCount(); i++) {
515                 // Extract the record from the cursor and store the data in a ContentValues.
516                 ContentValues domainsContentValues = new ContentValues();
517                 domainsContentValues.put(DomainsDatabaseHelper.DOMAIN_NAME, importDomainsCursor.getString(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.DOMAIN_NAME)));
518                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_JAVASCRIPT, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_JAVASCRIPT)));
519                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_FIRST_PARTY_COOKIES, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_FIRST_PARTY_COOKIES)));
520                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_THIRD_PARTY_COOKIES, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_THIRD_PARTY_COOKIES)));
521                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_DOM_STORAGE, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_DOM_STORAGE)));
522                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_FORM_DATA, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_FORM_DATA)));
523                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_EASYLIST, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_EASYLIST)));
524                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_EASYPRIVACY, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_EASYPRIVACY)));
525                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_FANBOYS_ANNOYANCE_LIST,
526                         importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_FANBOYS_ANNOYANCE_LIST)));
527                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_FANBOYS_SOCIAL_BLOCKING_LIST,
528                         importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_FANBOYS_SOCIAL_BLOCKING_LIST)));
529                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_ULTRAPRIVACY, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_ULTRAPRIVACY)));
530                 domainsContentValues.put(DomainsDatabaseHelper.BLOCK_ALL_THIRD_PARTY_REQUESTS,
531                         importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.BLOCK_ALL_THIRD_PARTY_REQUESTS)));
532                 domainsContentValues.put(DomainsDatabaseHelper.USER_AGENT, importDomainsCursor.getString(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.USER_AGENT)));
533                 domainsContentValues.put(DomainsDatabaseHelper.FONT_SIZE, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.FONT_SIZE)));
534                 domainsContentValues.put(DomainsDatabaseHelper.SWIPE_TO_REFRESH, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.SWIPE_TO_REFRESH)));
535                 domainsContentValues.put(DomainsDatabaseHelper.NIGHT_MODE, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.NIGHT_MODE)));
536                 domainsContentValues.put(DomainsDatabaseHelper.WIDE_VIEWPORT, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.WIDE_VIEWPORT)));
537                 domainsContentValues.put(DomainsDatabaseHelper.DISPLAY_IMAGES, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.DISPLAY_IMAGES)));
538                 domainsContentValues.put(DomainsDatabaseHelper.PINNED_SSL_CERTIFICATE, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.PINNED_SSL_CERTIFICATE)));
539                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_TO_COMMON_NAME, importDomainsCursor.getString(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_TO_COMMON_NAME)));
540                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_TO_ORGANIZATION, importDomainsCursor.getString(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_TO_ORGANIZATION)));
541                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_TO_ORGANIZATIONAL_UNIT,
542                         importDomainsCursor.getString(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_TO_ORGANIZATIONAL_UNIT)));
543                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_BY_COMMON_NAME, importDomainsCursor.getString(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_BY_COMMON_NAME)));
544                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_BY_ORGANIZATION, importDomainsCursor.getString(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_BY_ORGANIZATION)));
545                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_BY_ORGANIZATIONAL_UNIT,
546                         importDomainsCursor.getString(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_BY_ORGANIZATIONAL_UNIT)));
547                 domainsContentValues.put(DomainsDatabaseHelper.SSL_START_DATE, importDomainsCursor.getLong(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_START_DATE)));
548                 domainsContentValues.put(DomainsDatabaseHelper.SSL_END_DATE, importDomainsCursor.getLong(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_END_DATE)));
549                 domainsContentValues.put(DomainsDatabaseHelper.PINNED_IP_ADDRESSES, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.PINNED_IP_ADDRESSES)));
550                 domainsContentValues.put(DomainsDatabaseHelper.IP_ADDRESSES, importDomainsCursor.getString(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.IP_ADDRESSES)));
551
552                 // Insert the record into the export database.
553                 domainsDatabaseHelper.addDomain(domainsContentValues);
554
555                 // Advance to the next record.
556                 importDomainsCursor.moveToNext();
557             }
558
559             // Close the domains cursor.
560             importDomainsCursor.close();
561
562             // Close the domains database.
563             domainsDatabaseHelper.close();
564
565
566             // Get a cursor for the bookmarks table.
567             Cursor importBookmarksCursor = importDatabase.rawQuery("SELECT * FROM " + BookmarksDatabaseHelper.BOOKMARKS_TABLE, null);
568
569             // Delete the current bookmarks database.
570             context.deleteDatabase(BookmarksDatabaseHelper.BOOKMARKS_DATABASE);
571
572             // Create a new bookmarks database.  The `0` specifies the database version, but that is ignored and set instead using a constant in `BookmarksDatabaseHelper`.
573             BookmarksDatabaseHelper bookmarksDatabaseHelper = new BookmarksDatabaseHelper(context, null, null, 0);
574
575             // Move to the first bookmark.
576             importBookmarksCursor.moveToFirst();
577
578             // Copy the data from the import bookmarks cursor into the bookmarks database.
579             for (int i = 0; i < importBookmarksCursor.getCount(); i++) {
580                 // Extract the record from the cursor and store the data in a ContentValues.
581                 ContentValues bookmarksContentValues = new ContentValues();
582                 bookmarksContentValues.put(BookmarksDatabaseHelper.BOOKMARK_NAME, importBookmarksCursor.getString(importBookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_NAME)));
583                 bookmarksContentValues.put(BookmarksDatabaseHelper.BOOKMARK_URL, importBookmarksCursor.getString(importBookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_URL)));
584                 bookmarksContentValues.put(BookmarksDatabaseHelper.PARENT_FOLDER, importBookmarksCursor.getString(importBookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.PARENT_FOLDER)));
585                 bookmarksContentValues.put(BookmarksDatabaseHelper.DISPLAY_ORDER, importBookmarksCursor.getInt(importBookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.DISPLAY_ORDER)));
586                 bookmarksContentValues.put(BookmarksDatabaseHelper.IS_FOLDER, importBookmarksCursor.getInt(importBookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.IS_FOLDER)));
587                 bookmarksContentValues.put(BookmarksDatabaseHelper.FAVORITE_ICON, importBookmarksCursor.getBlob(importBookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.FAVORITE_ICON)));
588
589                 // Insert the record into the export database.
590                 bookmarksDatabaseHelper.createBookmark(bookmarksContentValues);
591
592                 // Advance to the next record.
593                 importBookmarksCursor.moveToNext();
594             }
595
596             // Close the bookmarks cursor.
597             importBookmarksCursor.close();
598
599             // Close the bookmarks database.
600             bookmarksDatabaseHelper.close();
601
602
603             // Get a cursor for the bookmarks table.
604             Cursor importPreferencesCursor = importDatabase.rawQuery("SELECT * FROM " + PREFERENCES_TABLE, null);
605
606             // Move to the first preference.
607             importPreferencesCursor.moveToFirst();
608
609             // Import the preference data.
610             sharedPreferences.edit()
611                     .putBoolean(JAVASCRIPT, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(JAVASCRIPT)) == 1)
612                     .putBoolean(FIRST_PARTY_COOKIES, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(FIRST_PARTY_COOKIES)) == 1)
613                     .putBoolean(THIRD_PARTY_COOKIES, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(THIRD_PARTY_COOKIES)) == 1)
614                     .putBoolean(DOM_STORAGE, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(DOM_STORAGE)) == 1)
615                     // Save form data can be removed once the minimum API >= 26.
616                     .putBoolean(SAVE_FORM_DATA, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(SAVE_FORM_DATA)) == 1)
617                     .putString(USER_AGENT, importPreferencesCursor.getString(importPreferencesCursor.getColumnIndex(USER_AGENT)))
618                     .putString(CUSTOM_USER_AGENT, importPreferencesCursor.getString(importPreferencesCursor.getColumnIndex(CUSTOM_USER_AGENT)))
619                     .putBoolean(INCOGNITO_MODE, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(INCOGNITO_MODE)) == 1)
620                     .putBoolean(DO_NOT_TRACK, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(DO_NOT_TRACK)) == 1)
621                     .putBoolean(ALLOW_SCREENSHOTS, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(ALLOW_SCREENSHOTS)) == 1)
622                     .putBoolean(EASYLIST, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(EASYLIST)) == 1)
623                     .putBoolean(EASYPRIVACY, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(EASYPRIVACY)) == 1)
624                     .putBoolean(FANBOYS_ANNOYANCE_LIST, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(FANBOYS_ANNOYANCE_LIST)) == 1)
625                     .putBoolean(FANBOYS_SOCIAL_BLOCKING_LIST, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(FANBOYS_SOCIAL_BLOCKING_LIST)) == 1)
626                     .putBoolean(ULTRAPRIVACY, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(ULTRAPRIVACY)) == 1)
627                     .putBoolean(BLOCK_ALL_THIRD_PARTY_REQUESTS, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(BLOCK_ALL_THIRD_PARTY_REQUESTS)) == 1)
628                     .putBoolean(GOOGLE_ANALYTICS, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(GOOGLE_ANALYTICS)) == 1)
629                     .putBoolean(FACEBOOK_CLICK_IDS, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(FACEBOOK_CLICK_IDS)) == 1)
630                     .putBoolean(TWITTER_AMP_REDIRECTS, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(TWITTER_AMP_REDIRECTS)) == 1)
631                     .putBoolean(PROXY_THROUGH_ORBOT, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(PROXY_THROUGH_ORBOT)) == 1)
632                     .putString(TOR_HOMEPAGE, importPreferencesCursor.getString(importPreferencesCursor.getColumnIndex(TOR_HOMEPAGE)))
633                     .putString(TOR_SEARCH, importPreferencesCursor.getString(importPreferencesCursor.getColumnIndex(TOR_SEARCH)))
634                     .putString(TOR_SEARCH_CUSTOM_URL, importPreferencesCursor.getString(importPreferencesCursor.getColumnIndex(TOR_SEARCH_CUSTOM_URL)))
635                     .putString(SEARCH, importPreferencesCursor.getString(importPreferencesCursor.getColumnIndex(SEARCH)))
636                     .putString(SEARCH_CUSTOM_URL, importPreferencesCursor.getString(importPreferencesCursor.getColumnIndex(SEARCH_CUSTOM_URL)))
637                     .putBoolean(FULL_SCREEN_BROWSING_MODE, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(FULL_SCREEN_BROWSING_MODE)) == 1)
638                     .putBoolean(HIDE_APP_BAR, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(HIDE_APP_BAR)) == 1)
639                     .putBoolean(CLEAR_EVERYTHING, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(CLEAR_EVERYTHING)) == 1)
640                     .putBoolean(CLEAR_COOKIES, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(CLEAR_COOKIES)) == 1)
641                     .putBoolean(CLEAR_DOM_STORAGE, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(CLEAR_DOM_STORAGE)) == 1)
642                     // Clear form data can be removed once the minimum API >= 26.
643                     .putBoolean(CLEAR_FORM_DATA, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(CLEAR_FORM_DATA)) == 1)
644                     .putBoolean(CLEAR_CACHE, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(CLEAR_CACHE)) == 1)
645                     .putString(HOMEPAGE, importPreferencesCursor.getString(importPreferencesCursor.getColumnIndex(HOMEPAGE)))
646                     .putString(FONT_SIZE, importPreferencesCursor.getString(importPreferencesCursor.getColumnIndex(FONT_SIZE)))
647                     .putBoolean(OPEN_INTENTS_IN_NEW_TAB, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(OPEN_INTENTS_IN_NEW_TAB)) == 1)
648                     .putBoolean(SWIPE_TO_REFRESH, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(SWIPE_TO_REFRESH)) == 1)
649                     .putBoolean(SCROLL_APP_BAR, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(SCROLL_APP_BAR)) == 1)
650                     .putBoolean(DISPLAY_ADDITIONAL_APP_BAR_ICONS, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(DISPLAY_ADDITIONAL_APP_BAR_ICONS)) == 1)
651                     .putBoolean(DOWNLOAD_WITH_EXTERNAL_APP, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(DOWNLOAD_WITH_EXTERNAL_APP)) == 1)
652                     .putBoolean(DARK_THEME, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(DARK_THEME)) == 1)
653                     .putBoolean(NIGHT_MODE, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(NIGHT_MODE)) == 1)
654                     .putBoolean(WIDE_VIEWPORT, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(WIDE_VIEWPORT)) == 1)
655                     .putBoolean(DISPLAY_WEBPAGE_IMAGES, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(DISPLAY_WEBPAGE_IMAGES)) == 1)
656                     .apply();
657
658             // Close the preferences cursor.
659             importPreferencesCursor.close();
660
661
662             // Close the import database.
663             importDatabase.close();
664
665             // Create strings for the temporary database files.
666             String shmFileString = temporaryImportFileString + "-shm";
667             String walFileString = temporaryImportFileString + "-wal";
668             String journalFileString = temporaryImportFileString + "-journal";
669
670             // Get `Files` for the temporary database files.
671             File shmFile = new File(shmFileString);
672             File walFile = new File(walFileString);
673             File journalFile = new File(journalFileString);
674
675             // Delete the Shared Memory file if it exists.
676             if (shmFile.exists()) {
677                 //noinspection ResultOfMethodCallIgnored
678                 shmFile.delete();
679             }
680
681             // Delete the Write Ahead Log file if it exists.
682             if (walFile.exists()) {
683                 //noinspection ResultOfMethodCallIgnored
684                 walFile.delete();
685             }
686
687             // Delete the Journal file if it exists.
688             if (journalFile.exists()) {
689                 //noinspection ResultOfMethodCallIgnored
690                 journalFile.delete();
691             }
692
693             // Delete the temporary import file.
694             //noinspection ResultOfMethodCallIgnored
695             temporaryImportFile.delete();
696
697             // Import successful.
698             return IMPORT_SUCCESSFUL;
699         } catch (Exception exception) {
700             // Return the import error.
701             return exception.toString();
702         }
703     }
704 }