3aa0ba0f21a7653f318e40f7909be975f2639e2a
[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 = 9;
42     private static final String PREFERENCES_TABLE = "preferences";
43
44     // The preferences constants.
45     private static final String _ID = "_id";
46     private static final String JAVASCRIPT = "javascript";
47     private static final String FIRST_PARTY_COOKIES = "first_party_cookies";
48     private static final String THIRD_PARTY_COOKIES = "third_party_cookies";
49     private static final String DOM_STORAGE = "dom_storage";
50     private static final String SAVE_FORM_DATA = "save_form_data";
51     private static final String USER_AGENT = "user_agent";
52     private static final String CUSTOM_USER_AGENT = "custom_user_agent";
53     private static final String INCOGNITO_MODE = "incognito_mode";
54     private static final String DO_NOT_TRACK = "do_not_track";
55     private static final String ALLOW_SCREENSHOTS = "allow_screenshots";
56     private static final String EASYLIST = "easylist";
57     private static final String EASYPRIVACY = "easyprivacy";
58     private static final String FANBOYS_ANNOYANCE_LIST = "fanboys_annoyance_list";
59     private static final String FANBOYS_SOCIAL_BLOCKING_LIST = "fanboys_social_blocking_list";
60     private static final String ULTRALIST = "ultralist";
61     private static final String ULTRAPRIVACY = "ultraprivacy";
62     private static final String BLOCK_ALL_THIRD_PARTY_REQUESTS = "block_all_third_party_requests";
63     private static final String GOOGLE_ANALYTICS = "google_analytics";
64     private static final String FACEBOOK_CLICK_IDS = "facebook_click_ids";
65     private static final String TWITTER_AMP_REDIRECTS = "twitter_amp_redirects";
66     private static final String SEARCH = "search";
67     private static final String SEARCH_CUSTOM_URL = "search_custom_url";
68     private static final String PROXY = "proxy";
69     private static final String PROXY_CUSTOM_HOST = "proxy_custom_host";
70     private static final String PROXY_CUSTOM_PORT = "proxy_custom_port";
71     private static final String FULL_SCREEN_BROWSING_MODE = "full_screen_browsing_mode";
72     private static final String HIDE_APP_BAR = "hide_app_bar";
73     private static final String CLEAR_EVERYTHING = "clear_everything";
74     private static final String CLEAR_COOKIES = "clear_cookies";
75     private static final String CLEAR_DOM_STORAGE = "clear_dom_storage";
76     private static final String CLEAR_FORM_DATA = "clear_form_data";
77     private static final String CLEAR_CACHE = "clear_cache";
78     private static final String HOMEPAGE = "homepage";
79     private static final String FONT_SIZE = "font_size";
80     private static final String OPEN_INTENTS_IN_NEW_TAB = "open_intents_in_new_tab";
81     private static final String SWIPE_TO_REFRESH = "swipe_to_refresh";
82     private static final String SCROLL_APP_BAR = "scroll_app_bar";
83     private static final String DISPLAY_ADDITIONAL_APP_BAR_ICONS = "display_additional_app_bar_icons";
84     private static final String DOWNLOAD_WITH_EXTERNAL_APP = "download_with_external_app";
85     private static final String DARK_THEME = "dark_theme";
86     private static final String NIGHT_MODE = "night_mode";
87     private static final String WIDE_VIEWPORT = "wide_viewport";
88     private static final String DISPLAY_WEBPAGE_IMAGES = "display_webpage_images";
89
90     public String exportUnencrypted(File exportFile, Context context) {
91         try {
92             // Delete the current file if it exists.
93             if (exportFile.exists()) {
94                 //noinspection ResultOfMethodCallIgnored
95                 exportFile.delete();
96             }
97
98             // Create the export database.
99             SQLiteDatabase exportDatabase = SQLiteDatabase.openOrCreateDatabase(exportFile, null);
100
101             // Set the export database version number.
102             exportDatabase.setVersion(SCHEMA_VERSION);
103
104             // Create the export database domains table.
105             exportDatabase.execSQL(DomainsDatabaseHelper.CREATE_DOMAINS_TABLE);
106
107             // Open the domains database.  The `0` specifies the database version, but that is ignored and set instead using a constant in `DomainsDatabaseHelper`.
108             DomainsDatabaseHelper domainsDatabaseHelper = new DomainsDatabaseHelper(context, null, null, 0);
109
110             // Get a full domains database cursor.
111             Cursor domainsCursor = domainsDatabaseHelper.getCompleteCursorOrderedByDomain();
112
113             // Move to the first domain.
114             domainsCursor.moveToFirst();
115
116             // Copy the data from the domains cursor into the export database.
117             for (int i = 0; i < domainsCursor.getCount(); i++) {
118                 // Extract the record from the cursor and store the data in a ContentValues.
119                 ContentValues domainsContentValues = new ContentValues();
120                 domainsContentValues.put(DomainsDatabaseHelper.DOMAIN_NAME, domainsCursor.getString(domainsCursor.getColumnIndex(DomainsDatabaseHelper.DOMAIN_NAME)));
121                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_JAVASCRIPT, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_JAVASCRIPT)));
122                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_FIRST_PARTY_COOKIES, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_FIRST_PARTY_COOKIES)));
123                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_THIRD_PARTY_COOKIES, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_THIRD_PARTY_COOKIES)));
124                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_DOM_STORAGE, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_DOM_STORAGE)));
125                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_FORM_DATA, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_FORM_DATA)));
126                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_EASYLIST, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_EASYLIST)));
127                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_EASYPRIVACY, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_EASYPRIVACY)));
128                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_FANBOYS_ANNOYANCE_LIST, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_FANBOYS_ANNOYANCE_LIST)));
129                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_FANBOYS_SOCIAL_BLOCKING_LIST, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_FANBOYS_SOCIAL_BLOCKING_LIST)));
130                 domainsContentValues.put(DomainsDatabaseHelper.ULTRALIST, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.ULTRALIST)));
131                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_ULTRAPRIVACY, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_ULTRAPRIVACY)));
132                 domainsContentValues.put(DomainsDatabaseHelper.BLOCK_ALL_THIRD_PARTY_REQUESTS, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.BLOCK_ALL_THIRD_PARTY_REQUESTS)));
133                 domainsContentValues.put(DomainsDatabaseHelper.USER_AGENT, domainsCursor.getString(domainsCursor.getColumnIndex(DomainsDatabaseHelper.USER_AGENT)));
134                 domainsContentValues.put(DomainsDatabaseHelper.FONT_SIZE, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.FONT_SIZE)));
135                 domainsContentValues.put(DomainsDatabaseHelper.SWIPE_TO_REFRESH, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.SWIPE_TO_REFRESH)));
136                 domainsContentValues.put(DomainsDatabaseHelper.NIGHT_MODE, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.NIGHT_MODE)));
137                 domainsContentValues.put(DomainsDatabaseHelper.WIDE_VIEWPORT, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.WIDE_VIEWPORT)));
138                 domainsContentValues.put(DomainsDatabaseHelper.DISPLAY_IMAGES, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.DISPLAY_IMAGES)));
139                 domainsContentValues.put(DomainsDatabaseHelper.PINNED_SSL_CERTIFICATE, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.PINNED_SSL_CERTIFICATE)));
140                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_TO_COMMON_NAME, domainsCursor.getString(domainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_TO_COMMON_NAME)));
141                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_TO_ORGANIZATION, domainsCursor.getString(domainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_TO_ORGANIZATION)));
142                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_TO_ORGANIZATIONAL_UNIT, domainsCursor.getString(domainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_TO_ORGANIZATIONAL_UNIT)));
143                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_BY_COMMON_NAME, domainsCursor.getString(domainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_BY_COMMON_NAME)));
144                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_BY_ORGANIZATION, domainsCursor.getString(domainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_BY_ORGANIZATION)));
145                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_BY_ORGANIZATIONAL_UNIT, domainsCursor.getString(domainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_BY_ORGANIZATIONAL_UNIT)));
146                 domainsContentValues.put(DomainsDatabaseHelper.SSL_START_DATE, domainsCursor.getLong(domainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_START_DATE)));
147                 domainsContentValues.put(DomainsDatabaseHelper.SSL_END_DATE, domainsCursor.getLong(domainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_END_DATE)));
148                 domainsContentValues.put(DomainsDatabaseHelper.PINNED_IP_ADDRESSES, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.PINNED_IP_ADDRESSES)));
149                 domainsContentValues.put(DomainsDatabaseHelper.IP_ADDRESSES, domainsCursor.getString(domainsCursor.getColumnIndex(DomainsDatabaseHelper.IP_ADDRESSES)));
150
151                 // Insert the record into the export database.
152                 exportDatabase.insert(DomainsDatabaseHelper.DOMAINS_TABLE, null, domainsContentValues);
153
154                 // Advance to the next record.
155                 domainsCursor.moveToNext();
156             }
157
158             // Close the domains database.
159             domainsCursor.close();
160             domainsDatabaseHelper.close();
161
162
163             // Create the export database bookmarks table.
164             exportDatabase.execSQL(BookmarksDatabaseHelper.CREATE_BOOKMARKS_TABLE);
165
166             // Open the bookmarks database.  The `0` specifies the database version, but that is ignored and set instead using a constant in `BookmarksDatabaseHelper`.
167             BookmarksDatabaseHelper bookmarksDatabaseHelper = new BookmarksDatabaseHelper(context, null, null, 0);
168
169             // Get a full bookmarks cursor.
170             Cursor bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarks();
171
172             // Move to the first bookmark.
173             bookmarksCursor.moveToFirst();
174
175             // Copy the data from the bookmarks cursor into the export database.
176             for (int i = 0; i < bookmarksCursor.getCount(); i++) {
177                 // Extract the record from the cursor and store the data in a ContentValues.
178                 ContentValues bookmarksContentValues = new ContentValues();
179                 bookmarksContentValues.put(BookmarksDatabaseHelper.BOOKMARK_NAME, bookmarksCursor.getString(bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_NAME)));
180                 bookmarksContentValues.put(BookmarksDatabaseHelper.BOOKMARK_URL, bookmarksCursor.getString(bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_URL)));
181                 bookmarksContentValues.put(BookmarksDatabaseHelper.PARENT_FOLDER, bookmarksCursor.getString(bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.PARENT_FOLDER)));
182                 bookmarksContentValues.put(BookmarksDatabaseHelper.DISPLAY_ORDER, bookmarksCursor.getInt(bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.DISPLAY_ORDER)));
183                 bookmarksContentValues.put(BookmarksDatabaseHelper.IS_FOLDER, bookmarksCursor.getInt(bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.IS_FOLDER)));
184                 bookmarksContentValues.put(BookmarksDatabaseHelper.FAVORITE_ICON, bookmarksCursor.getBlob(bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.FAVORITE_ICON)));
185
186                 // Insert the record into the export database.
187                 exportDatabase.insert(BookmarksDatabaseHelper.BOOKMARKS_TABLE, null, bookmarksContentValues);
188
189                 // Advance to the next record.
190                 bookmarksCursor.moveToNext();
191             }
192
193             // Close the bookmarks database.
194             bookmarksCursor.close();
195             bookmarksDatabaseHelper.close();
196
197
198             // Prepare the preferences table SQL creation string.
199             String CREATE_PREFERENCES_TABLE = "CREATE TABLE " + PREFERENCES_TABLE + " (" +
200                     _ID + " INTEGER PRIMARY KEY, " +
201                     JAVASCRIPT + " BOOLEAN, " +
202                     FIRST_PARTY_COOKIES + " BOOLEAN, " +
203                     THIRD_PARTY_COOKIES + " BOOLEAN, " +
204                     DOM_STORAGE + " BOOLEAN, " +
205                     SAVE_FORM_DATA + " BOOLEAN, " +
206                     USER_AGENT + " TEXT, " +
207                     CUSTOM_USER_AGENT + " TEXT, " +
208                     INCOGNITO_MODE + " BOOLEAN, " +
209                     DO_NOT_TRACK + " BOOLEAN, " +
210                     ALLOW_SCREENSHOTS + " BOOLEAN, " +
211                     EASYLIST + " BOOLEAN, " +
212                     EASYPRIVACY + " BOOLEAN, " +
213                     FANBOYS_ANNOYANCE_LIST + " BOOLEAN, " +
214                     FANBOYS_SOCIAL_BLOCKING_LIST + " BOOLEAN, " +
215                     ULTRALIST + " BOOLEAN, " +
216                     ULTRAPRIVACY + " BOOLEAN, " +
217                     BLOCK_ALL_THIRD_PARTY_REQUESTS + " BOOLEAN, " +
218                     GOOGLE_ANALYTICS + " BOOLEAN, " +
219                     FACEBOOK_CLICK_IDS + " BOOLEAN, " +
220                     TWITTER_AMP_REDIRECTS + " BOOLEAN, " +
221                     SEARCH + " TEXT, " +
222                     SEARCH_CUSTOM_URL + " TEXT, " +
223                     PROXY + " TEXT, " +
224                     PROXY_CUSTOM_HOST + " TEXT, " +
225                     PROXY_CUSTOM_PORT + " TEXT, " +
226                     FULL_SCREEN_BROWSING_MODE + " BOOLEAN, " +
227                     HIDE_APP_BAR + " BOOLEAN, " +
228                     CLEAR_EVERYTHING + " BOOLEAN, " +
229                     CLEAR_COOKIES + " BOOLEAN, " +
230                     CLEAR_DOM_STORAGE + " BOOLEAN, " +
231                     CLEAR_FORM_DATA + " BOOLEAN, " +
232                     CLEAR_CACHE + " BOOLEAN, " +
233                     HOMEPAGE + " TEXT, " +
234                     FONT_SIZE + " TEXT, " +
235                     OPEN_INTENTS_IN_NEW_TAB + " BOOLEAN, " +
236                     SWIPE_TO_REFRESH + " BOOLEAN, " +
237                     SCROLL_APP_BAR + " BOOLEAN, " +
238                     DISPLAY_ADDITIONAL_APP_BAR_ICONS + " BOOLEAN, " +
239                     DOWNLOAD_WITH_EXTERNAL_APP + " BOOLEAN, " +
240                     DARK_THEME + " BOOLEAN, " +
241                     NIGHT_MODE + " BOOLEAN, " +
242                     WIDE_VIEWPORT + " BOOLEAN, " +
243                     DISPLAY_WEBPAGE_IMAGES + " BOOLEAN)";
244
245             // Create the export database preferences table.
246             exportDatabase.execSQL(CREATE_PREFERENCES_TABLE);
247
248             // Get a handle for the shared preference.
249             SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(context);
250
251             // Create a ContentValues with the preferences information.
252             ContentValues preferencesContentValues = new ContentValues();
253             preferencesContentValues.put(JAVASCRIPT, sharedPreferences.getBoolean(JAVASCRIPT, false));
254             preferencesContentValues.put(FIRST_PARTY_COOKIES, sharedPreferences.getBoolean(FIRST_PARTY_COOKIES, false));
255             preferencesContentValues.put(THIRD_PARTY_COOKIES, sharedPreferences.getBoolean(THIRD_PARTY_COOKIES, false));
256             preferencesContentValues.put(DOM_STORAGE, sharedPreferences.getBoolean(DOM_STORAGE, false));
257             preferencesContentValues.put(SAVE_FORM_DATA, sharedPreferences.getBoolean(SAVE_FORM_DATA, false));  // Save form data can be removed once the minimum API >= 26.
258             preferencesContentValues.put(USER_AGENT, sharedPreferences.getString(USER_AGENT, context.getString(R.string.user_agent_default_value)));
259             preferencesContentValues.put(CUSTOM_USER_AGENT, sharedPreferences.getString(CUSTOM_USER_AGENT, context.getString(R.string.custom_user_agent_default_value)));
260             preferencesContentValues.put(INCOGNITO_MODE, sharedPreferences.getBoolean(INCOGNITO_MODE, false));
261             preferencesContentValues.put(DO_NOT_TRACK, sharedPreferences.getBoolean(DO_NOT_TRACK, false));
262             preferencesContentValues.put(ALLOW_SCREENSHOTS, sharedPreferences.getBoolean(ALLOW_SCREENSHOTS, false));
263             preferencesContentValues.put(EASYLIST, sharedPreferences.getBoolean(EASYLIST, true));
264             preferencesContentValues.put(EASYPRIVACY, sharedPreferences.getBoolean(EASYPRIVACY, true));
265             preferencesContentValues.put(FANBOYS_ANNOYANCE_LIST, sharedPreferences.getBoolean(FANBOYS_ANNOYANCE_LIST, true));
266             preferencesContentValues.put(FANBOYS_SOCIAL_BLOCKING_LIST, sharedPreferences.getBoolean(FANBOYS_SOCIAL_BLOCKING_LIST, true));
267             preferencesContentValues.put(ULTRALIST, sharedPreferences.getBoolean(ULTRALIST, true));
268             preferencesContentValues.put(ULTRAPRIVACY, sharedPreferences.getBoolean(ULTRAPRIVACY, true));
269             preferencesContentValues.put(BLOCK_ALL_THIRD_PARTY_REQUESTS, sharedPreferences.getBoolean(BLOCK_ALL_THIRD_PARTY_REQUESTS, false));
270             preferencesContentValues.put(GOOGLE_ANALYTICS, sharedPreferences.getBoolean(GOOGLE_ANALYTICS, true));
271             preferencesContentValues.put(FACEBOOK_CLICK_IDS, sharedPreferences.getBoolean(FACEBOOK_CLICK_IDS, true));
272             preferencesContentValues.put(TWITTER_AMP_REDIRECTS, sharedPreferences.getBoolean(TWITTER_AMP_REDIRECTS, true));
273             preferencesContentValues.put(SEARCH, sharedPreferences.getString(SEARCH, context.getString(R.string.search_default_value)));
274             preferencesContentValues.put(SEARCH_CUSTOM_URL, sharedPreferences.getString(SEARCH_CUSTOM_URL, context.getString(R.string.search_custom_url_default_value)));
275             preferencesContentValues.put(PROXY, sharedPreferences.getString(PROXY, context.getString(R.string.proxy_default_value)));
276             preferencesContentValues.put(PROXY_CUSTOM_HOST, sharedPreferences.getString(PROXY_CUSTOM_HOST, context.getString(R.string.proxy_custom_host_default_value)));
277             preferencesContentValues.put(PROXY_CUSTOM_PORT, sharedPreferences.getString(PROXY_CUSTOM_PORT, context.getString(R.string.proxy_custom_port_default_value)));
278             preferencesContentValues.put(FULL_SCREEN_BROWSING_MODE, sharedPreferences.getBoolean(FULL_SCREEN_BROWSING_MODE, false));
279             preferencesContentValues.put(HIDE_APP_BAR, sharedPreferences.getBoolean(HIDE_APP_BAR, true));
280             preferencesContentValues.put(CLEAR_EVERYTHING, sharedPreferences.getBoolean(CLEAR_EVERYTHING, true));
281             preferencesContentValues.put(CLEAR_COOKIES, sharedPreferences.getBoolean(CLEAR_COOKIES, true));
282             preferencesContentValues.put(CLEAR_DOM_STORAGE, sharedPreferences.getBoolean(CLEAR_DOM_STORAGE, true));
283             preferencesContentValues.put(CLEAR_FORM_DATA, sharedPreferences.getBoolean(CLEAR_FORM_DATA, true));  // Clear form data can be removed once the minimum API >= 26.
284             preferencesContentValues.put(CLEAR_CACHE, sharedPreferences.getBoolean(CLEAR_CACHE, true));
285             preferencesContentValues.put(HOMEPAGE, sharedPreferences.getString(HOMEPAGE, context.getString(R.string.homepage_default_value)));
286             preferencesContentValues.put(FONT_SIZE, sharedPreferences.getString(FONT_SIZE, context.getString(R.string.font_size_default_value)));
287             preferencesContentValues.put(OPEN_INTENTS_IN_NEW_TAB, sharedPreferences.getBoolean(OPEN_INTENTS_IN_NEW_TAB, true));
288             preferencesContentValues.put(SWIPE_TO_REFRESH, sharedPreferences.getBoolean(SWIPE_TO_REFRESH, true));
289             preferencesContentValues.put(SCROLL_APP_BAR, sharedPreferences.getBoolean(SCROLL_APP_BAR, true));
290             preferencesContentValues.put(DISPLAY_ADDITIONAL_APP_BAR_ICONS, sharedPreferences.getBoolean(DISPLAY_ADDITIONAL_APP_BAR_ICONS, false));
291             preferencesContentValues.put(DOWNLOAD_WITH_EXTERNAL_APP, sharedPreferences.getBoolean(DOWNLOAD_WITH_EXTERNAL_APP, false));
292             preferencesContentValues.put(DARK_THEME, sharedPreferences.getBoolean(DARK_THEME, false));
293             preferencesContentValues.put(NIGHT_MODE, sharedPreferences.getBoolean(NIGHT_MODE, false));
294             preferencesContentValues.put(WIDE_VIEWPORT, sharedPreferences.getBoolean(WIDE_VIEWPORT, true));
295             preferencesContentValues.put(DISPLAY_WEBPAGE_IMAGES, sharedPreferences.getBoolean(DISPLAY_WEBPAGE_IMAGES, true));
296
297             // Insert the preferences into the export database.
298             exportDatabase.insert(PREFERENCES_TABLE, null, preferencesContentValues);
299
300             // Close the export database.
301             exportDatabase.close();
302
303             // Convert the database file to a string.
304             String exportFileString = exportFile.toString();
305
306             // Create strings for the temporary database files.
307             String journalFileString = exportFileString + "-journal";
308
309             // Get `Files` for the temporary database files.
310             File journalFile = new File(journalFileString);
311
312             // Delete the Journal file if it exists.
313             if (journalFile.exists()) {
314                 //noinspection ResultOfMethodCallIgnored
315                 journalFile.delete();
316             }
317
318             // Export successful.
319             return EXPORT_SUCCESSFUL;
320         } catch (Exception exception) {
321             // Return the export error.
322             return exception.toString();
323         }
324     }
325
326     public String importUnencrypted(File importFile, Context context){
327         try {
328             // Create a temporary import file string.
329             String temporaryImportFileString = context.getCacheDir() + "/" + "temporary_import_file";
330
331             // Get a handle for a temporary import file.
332             File temporaryImportFile = new File(temporaryImportFileString);
333
334             // Delete the temporary import file if it already exists.
335             if (temporaryImportFile.exists()) {
336                 //noinspection ResultOfMethodCallIgnored
337                 temporaryImportFile.delete();
338             }
339
340             // Create input and output streams.
341             InputStream importFileInputStream = new FileInputStream(importFile);
342             OutputStream temporaryImportFileOutputStream = new FileOutputStream(temporaryImportFile);
343
344             // Create a byte array.
345             byte[] transferByteArray = new byte[1024];
346
347             // Create an integer to track the number of bytes read.
348             int bytesRead;
349
350             // Copy the import file to the temporary import file.  Once the minimum API >= 26 `Files.copy` can be used instead.
351             while ((bytesRead = importFileInputStream.read(transferByteArray)) > 0) {
352                 temporaryImportFileOutputStream.write(transferByteArray, 0, bytesRead);
353             }
354
355             // Close the file streams.
356             importFileInputStream.close();
357             temporaryImportFileOutputStream.close();
358
359
360             // Get a handle for the shared preference.
361             SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(context);
362
363             // Open the import database.  Once the minimum API >= 27 the file can be opened directly without using the string.
364             SQLiteDatabase importDatabase = SQLiteDatabase.openDatabase(temporaryImportFileString, null, SQLiteDatabase.OPEN_READWRITE);
365
366             // Get the database version.
367             int importDatabaseVersion = importDatabase.getVersion();
368
369             // Upgrade the database if needed.
370             if (importDatabaseVersion < SCHEMA_VERSION) {
371                 switch (importDatabaseVersion){
372                     // Upgrade from schema version 1.
373                     case 1:
374                         // Add the download with external app column to the preferences table.
375                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + DOWNLOAD_WITH_EXTERNAL_APP + " BOOLEAN");
376
377                         // Get the current setting for downloading with an external app.
378                         boolean downloadWithExternalApp = sharedPreferences.getBoolean(DOWNLOAD_WITH_EXTERNAL_APP, false);
379
380                         // Set the download with external app preference to the current value.
381                         if (downloadWithExternalApp) {
382                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + DOWNLOAD_WITH_EXTERNAL_APP + " = " + 1);
383                         } else {
384                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + DOWNLOAD_WITH_EXTERNAL_APP + " = " + 0);
385                         }
386
387                     // Upgrade from schema version 2.
388                     case 2:
389                         // Once the SQLite version is >= 3.25.0 `ALTER TABLE RENAME COLUMN` can be used.  https://www.sqlite.org/lang_altertable.html  https://www.sqlite.org/changes.html
390                         // https://developer.android.com/reference/android/database/sqlite/package-summary
391                         // In the meantime, a new column must be created with the new name.  There is no need to delete the old column on the temporary import database.
392
393                         // Get a cursor with the current `default_font_size` value.
394                         Cursor importDatabasePreferenceCursor = importDatabase.rawQuery("SELECT default_font_size FROM " + PREFERENCES_TABLE, null);
395
396                         // Move to the beginning fo the cursor.
397                         importDatabasePreferenceCursor.moveToFirst();
398
399                         // Get the current value in `default_font_size`.
400                         String fontSize = importDatabasePreferenceCursor.getString(importDatabasePreferenceCursor.getColumnIndex("default_font_size"));
401
402                         // Close the cursor.
403                         importDatabasePreferenceCursor.close();
404
405                         // Create the new font size column.
406                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + FONT_SIZE + " TEXT");
407
408                         // Place the font size string in the new column.
409                         importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + FONT_SIZE + " = '" + fontSize + "'");
410
411                     // Upgrade from schema version 3.
412                     case 3:
413                         // Add the Pinned IP Addresses columns to the domains table.
414                         importDatabase.execSQL("ALTER TABLE " + DomainsDatabaseHelper.DOMAINS_TABLE + " ADD COLUMN " + DomainsDatabaseHelper.PINNED_IP_ADDRESSES + " BOOLEAN");
415                         importDatabase.execSQL("ALTER TABLE " + DomainsDatabaseHelper.DOMAINS_TABLE + " ADD COLUMN " + DomainsDatabaseHelper.IP_ADDRESSES + " TEXT");
416
417                     // Upgrade from schema version 4.
418                     case 4:
419                         // Add the hide and scroll app bar columns to the preferences table.
420                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + HIDE_APP_BAR + " BOOLEAN");
421                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + SCROLL_APP_BAR + " BOOLEAN");
422
423                         // Get the current hide and scroll app bar settings.
424                         boolean hideAppBar = sharedPreferences.getBoolean(HIDE_APP_BAR, true);
425                         boolean scrollAppBar = sharedPreferences.getBoolean(SCROLL_APP_BAR, true);
426
427                         // Populate the database with the current values.
428                         if (hideAppBar) {
429                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + HIDE_APP_BAR + " = " + 1);
430                         } else {
431                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + HIDE_APP_BAR + " = " + 0);
432                         }
433
434                         if (scrollAppBar) {
435                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + SCROLL_APP_BAR + " = " + 1);
436                         } else {
437                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + SCROLL_APP_BAR + " = " + 0);
438                         }
439
440                     // Upgrade from schema version 5.
441                     case 5:
442                         // Add the open intents in new tab column to the preferences table.
443                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + OPEN_INTENTS_IN_NEW_TAB + " BOOLEAN");
444
445                         // Get the current open intents in new tab preference.
446                         boolean openIntentsInNewTab = sharedPreferences.getBoolean(OPEN_INTENTS_IN_NEW_TAB, true);
447
448                         // Populate the database with the current value.
449                         if (openIntentsInNewTab) {
450                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + OPEN_INTENTS_IN_NEW_TAB + " = " + 1);
451                         } else {
452                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + OPEN_INTENTS_IN_NEW_TAB + " = " + 0);
453                         }
454
455                     // Upgrade from schema version 6.
456                     case 6:
457                         // Add the wide viewport column to the domains table.
458                         importDatabase.execSQL("ALTER TABLE " + DomainsDatabaseHelper.DOMAINS_TABLE + " ADD COLUMN " + DomainsDatabaseHelper.WIDE_VIEWPORT + " INTEGER");
459
460                         // Add the Google Analytics, Facebook Click IDs, Twitter AMP redirects, and wide viewport columns to the preferences table.
461                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + GOOGLE_ANALYTICS + " BOOLEAN");
462                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + FACEBOOK_CLICK_IDS + " BOOLEAN");
463                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + TWITTER_AMP_REDIRECTS + " BOOLEAN");
464                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + WIDE_VIEWPORT + " BOOLEAN");
465
466                         // Get the current preference values.
467                         boolean googleAnalytics = sharedPreferences.getBoolean(GOOGLE_ANALYTICS, true);
468                         boolean facebookClickIds = sharedPreferences.getBoolean(FACEBOOK_CLICK_IDS, true);
469                         boolean twitterAmpRedirects = sharedPreferences.getBoolean(TWITTER_AMP_REDIRECTS, true);
470                         boolean wideViewport = sharedPreferences.getBoolean(WIDE_VIEWPORT, true);
471
472                         // Populate the database with the current Google Analytics value.
473                         if (googleAnalytics) {
474                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + GOOGLE_ANALYTICS + " = " + 1);
475                         } else {
476                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + GOOGLE_ANALYTICS + " = " + 0);
477                         }
478
479                         // Populate the database with the current Facebook Click IDs value.
480                         if (facebookClickIds) {
481                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + FACEBOOK_CLICK_IDS + " = " + 1);
482                         } else {
483                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + FACEBOOK_CLICK_IDS + " = " + 0);
484                         }
485
486                         // Populate the database with the current Twitter AMP redirects value.
487                         if (twitterAmpRedirects) {
488                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + TWITTER_AMP_REDIRECTS + " = " + 1);
489                         } else {
490                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + TWITTER_AMP_REDIRECTS + " = " + 0);
491                         }
492
493                         // Populate the database with the current wide viewport value.
494                         if (wideViewport) {
495                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + WIDE_VIEWPORT + " = " + 1);
496                         } else {
497                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + WIDE_VIEWPORT + " = " + 0);
498                         }
499
500                     // Upgrade from schema version 7.
501                     case 7:
502                         // Add the UltraList column to the domains table.
503                         importDatabase.execSQL("ALTER TABLE " + DomainsDatabaseHelper.DOMAINS_TABLE + " ADD COLUMN " + DomainsDatabaseHelper.ULTRALIST + " BOOLEAN");
504
505                         // Add the UltraList column to the preferences table.
506                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + ULTRALIST + " BOOLEAN");
507
508                         // Get the current preference values.
509                         boolean ultraList = sharedPreferences.getBoolean(ULTRALIST, true);
510
511                         // Populate the tables with the current UltraList value.
512                         if (ultraList) {
513                             importDatabase.execSQL("UPDATE " + DomainsDatabaseHelper.DOMAINS_TABLE + " SET " + DomainsDatabaseHelper.ULTRALIST + " = " + 1);
514                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + ULTRALIST + " = " + 1);
515                         } else {
516                             importDatabase.execSQL("UPDATE " + DomainsDatabaseHelper.DOMAINS_TABLE + " SET " + DomainsDatabaseHelper.ULTRALIST + " = " + 0);
517                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + ULTRALIST + " = " + 0);
518                         }
519
520                     // Upgrade from schema version 8.
521                     case 8:
522                         // Add the new proxy columns to the preferences table.
523                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + PROXY + " TEXT");
524                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + PROXY_CUSTOM_HOST + " TEXT");
525                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + PROXY_CUSTOM_PORT + " TEXT");
526
527                         // Get the current proxy values.
528                         String proxy = sharedPreferences.getString(PROXY, context.getString(R.string.proxy_default_value));
529                         String proxyCustomHost = sharedPreferences.getString(PROXY_CUSTOM_HOST, context.getString(R.string.proxy_custom_host_default_value));
530                         String proxyCustomPort = sharedPreferences.getString(PROXY_CUSTOM_PORT, context.getString(R.string.proxy_custom_port_default_value));
531
532                         // Populate the table with the current proxy values.
533                         importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + PROXY + " = '" + proxy + "'");
534                         importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + PROXY_CUSTOM_HOST + " = '" + proxyCustomHost + "'");
535                         importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + PROXY_CUSTOM_PORT + " = '" + proxyCustomPort +"'");
536                 }
537             }
538
539             // Get a cursor for the domains table.
540             Cursor importDomainsCursor = importDatabase.rawQuery("SELECT * FROM " + DomainsDatabaseHelper.DOMAINS_TABLE + " ORDER BY " + DomainsDatabaseHelper.DOMAIN_NAME + " ASC", null);
541
542             // Delete the current domains database.
543             context.deleteDatabase(DomainsDatabaseHelper.DOMAINS_DATABASE);
544
545             // Create a new domains database.  The `0` specifies the database version, but that is ignored and set instead using a constant in `DomainsDatabaseHelper`.
546             DomainsDatabaseHelper domainsDatabaseHelper = new DomainsDatabaseHelper(context, null, null, 0);
547
548             // Move to the first domain.
549             importDomainsCursor.moveToFirst();
550
551             // Copy the data from the import domains cursor into the domains database.
552             for (int i = 0; i < importDomainsCursor.getCount(); i++) {
553                 // Extract the record from the cursor and store the data in a ContentValues.
554                 ContentValues domainsContentValues = new ContentValues();
555                 domainsContentValues.put(DomainsDatabaseHelper.DOMAIN_NAME, importDomainsCursor.getString(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.DOMAIN_NAME)));
556                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_JAVASCRIPT, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_JAVASCRIPT)));
557                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_FIRST_PARTY_COOKIES, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_FIRST_PARTY_COOKIES)));
558                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_THIRD_PARTY_COOKIES, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_THIRD_PARTY_COOKIES)));
559                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_DOM_STORAGE, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_DOM_STORAGE)));
560                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_FORM_DATA, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_FORM_DATA)));
561                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_EASYLIST, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_EASYLIST)));
562                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_EASYPRIVACY, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_EASYPRIVACY)));
563                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_FANBOYS_ANNOYANCE_LIST,
564                         importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_FANBOYS_ANNOYANCE_LIST)));
565                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_FANBOYS_SOCIAL_BLOCKING_LIST,
566                         importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_FANBOYS_SOCIAL_BLOCKING_LIST)));
567                 domainsContentValues.put(DomainsDatabaseHelper.ULTRALIST, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.ULTRALIST)));
568                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_ULTRAPRIVACY, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_ULTRAPRIVACY)));
569                 domainsContentValues.put(DomainsDatabaseHelper.BLOCK_ALL_THIRD_PARTY_REQUESTS,
570                         importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.BLOCK_ALL_THIRD_PARTY_REQUESTS)));
571                 domainsContentValues.put(DomainsDatabaseHelper.USER_AGENT, importDomainsCursor.getString(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.USER_AGENT)));
572                 domainsContentValues.put(DomainsDatabaseHelper.FONT_SIZE, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.FONT_SIZE)));
573                 domainsContentValues.put(DomainsDatabaseHelper.SWIPE_TO_REFRESH, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.SWIPE_TO_REFRESH)));
574                 domainsContentValues.put(DomainsDatabaseHelper.NIGHT_MODE, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.NIGHT_MODE)));
575                 domainsContentValues.put(DomainsDatabaseHelper.WIDE_VIEWPORT, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.WIDE_VIEWPORT)));
576                 domainsContentValues.put(DomainsDatabaseHelper.DISPLAY_IMAGES, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.DISPLAY_IMAGES)));
577                 domainsContentValues.put(DomainsDatabaseHelper.PINNED_SSL_CERTIFICATE, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.PINNED_SSL_CERTIFICATE)));
578                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_TO_COMMON_NAME, importDomainsCursor.getString(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_TO_COMMON_NAME)));
579                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_TO_ORGANIZATION, importDomainsCursor.getString(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_TO_ORGANIZATION)));
580                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_TO_ORGANIZATIONAL_UNIT,
581                         importDomainsCursor.getString(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_TO_ORGANIZATIONAL_UNIT)));
582                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_BY_COMMON_NAME, importDomainsCursor.getString(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_BY_COMMON_NAME)));
583                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_BY_ORGANIZATION, importDomainsCursor.getString(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_BY_ORGANIZATION)));
584                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_BY_ORGANIZATIONAL_UNIT,
585                         importDomainsCursor.getString(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_BY_ORGANIZATIONAL_UNIT)));
586                 domainsContentValues.put(DomainsDatabaseHelper.SSL_START_DATE, importDomainsCursor.getLong(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_START_DATE)));
587                 domainsContentValues.put(DomainsDatabaseHelper.SSL_END_DATE, importDomainsCursor.getLong(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_END_DATE)));
588                 domainsContentValues.put(DomainsDatabaseHelper.PINNED_IP_ADDRESSES, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.PINNED_IP_ADDRESSES)));
589                 domainsContentValues.put(DomainsDatabaseHelper.IP_ADDRESSES, importDomainsCursor.getString(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.IP_ADDRESSES)));
590
591                 // Insert the record into the export database.
592                 domainsDatabaseHelper.addDomain(domainsContentValues);
593
594                 // Advance to the next record.
595                 importDomainsCursor.moveToNext();
596             }
597
598             // Close the domains cursor.
599             importDomainsCursor.close();
600
601             // Close the domains database.
602             domainsDatabaseHelper.close();
603
604
605             // Get a cursor for the bookmarks table.
606             Cursor importBookmarksCursor = importDatabase.rawQuery("SELECT * FROM " + BookmarksDatabaseHelper.BOOKMARKS_TABLE, null);
607
608             // Delete the current bookmarks database.
609             context.deleteDatabase(BookmarksDatabaseHelper.BOOKMARKS_DATABASE);
610
611             // Create a new bookmarks database.  The `0` specifies the database version, but that is ignored and set instead using a constant in `BookmarksDatabaseHelper`.
612             BookmarksDatabaseHelper bookmarksDatabaseHelper = new BookmarksDatabaseHelper(context, null, null, 0);
613
614             // Move to the first bookmark.
615             importBookmarksCursor.moveToFirst();
616
617             // Copy the data from the import bookmarks cursor into the bookmarks database.
618             for (int i = 0; i < importBookmarksCursor.getCount(); i++) {
619                 // Extract the record from the cursor and store the data in a ContentValues.
620                 ContentValues bookmarksContentValues = new ContentValues();
621                 bookmarksContentValues.put(BookmarksDatabaseHelper.BOOKMARK_NAME, importBookmarksCursor.getString(importBookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_NAME)));
622                 bookmarksContentValues.put(BookmarksDatabaseHelper.BOOKMARK_URL, importBookmarksCursor.getString(importBookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_URL)));
623                 bookmarksContentValues.put(BookmarksDatabaseHelper.PARENT_FOLDER, importBookmarksCursor.getString(importBookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.PARENT_FOLDER)));
624                 bookmarksContentValues.put(BookmarksDatabaseHelper.DISPLAY_ORDER, importBookmarksCursor.getInt(importBookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.DISPLAY_ORDER)));
625                 bookmarksContentValues.put(BookmarksDatabaseHelper.IS_FOLDER, importBookmarksCursor.getInt(importBookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.IS_FOLDER)));
626                 bookmarksContentValues.put(BookmarksDatabaseHelper.FAVORITE_ICON, importBookmarksCursor.getBlob(importBookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.FAVORITE_ICON)));
627
628                 // Insert the record into the export database.
629                 bookmarksDatabaseHelper.createBookmark(bookmarksContentValues);
630
631                 // Advance to the next record.
632                 importBookmarksCursor.moveToNext();
633             }
634
635             // Close the bookmarks cursor.
636             importBookmarksCursor.close();
637
638             // Close the bookmarks database.
639             bookmarksDatabaseHelper.close();
640
641
642             // Get a cursor for the bookmarks table.
643             Cursor importPreferencesCursor = importDatabase.rawQuery("SELECT * FROM " + PREFERENCES_TABLE, null);
644
645             // Move to the first preference.
646             importPreferencesCursor.moveToFirst();
647
648             // Import the preference data.
649             sharedPreferences.edit()
650                     .putBoolean(JAVASCRIPT, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(JAVASCRIPT)) == 1)
651                     .putBoolean(FIRST_PARTY_COOKIES, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(FIRST_PARTY_COOKIES)) == 1)
652                     .putBoolean(THIRD_PARTY_COOKIES, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(THIRD_PARTY_COOKIES)) == 1)
653                     .putBoolean(DOM_STORAGE, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(DOM_STORAGE)) == 1)
654                     // Save form data can be removed once the minimum API >= 26.
655                     .putBoolean(SAVE_FORM_DATA, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(SAVE_FORM_DATA)) == 1)
656                     .putString(USER_AGENT, importPreferencesCursor.getString(importPreferencesCursor.getColumnIndex(USER_AGENT)))
657                     .putString(CUSTOM_USER_AGENT, importPreferencesCursor.getString(importPreferencesCursor.getColumnIndex(CUSTOM_USER_AGENT)))
658                     .putBoolean(INCOGNITO_MODE, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(INCOGNITO_MODE)) == 1)
659                     .putBoolean(DO_NOT_TRACK, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(DO_NOT_TRACK)) == 1)
660                     .putBoolean(ALLOW_SCREENSHOTS, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(ALLOW_SCREENSHOTS)) == 1)
661                     .putBoolean(EASYLIST, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(EASYLIST)) == 1)
662                     .putBoolean(EASYPRIVACY, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(EASYPRIVACY)) == 1)
663                     .putBoolean(FANBOYS_ANNOYANCE_LIST, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(FANBOYS_ANNOYANCE_LIST)) == 1)
664                     .putBoolean(FANBOYS_SOCIAL_BLOCKING_LIST, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(FANBOYS_SOCIAL_BLOCKING_LIST)) == 1)
665                     .putBoolean(ULTRALIST, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(ULTRALIST)) == 1)
666                     .putBoolean(ULTRAPRIVACY, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(ULTRAPRIVACY)) == 1)
667                     .putBoolean(BLOCK_ALL_THIRD_PARTY_REQUESTS, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(BLOCK_ALL_THIRD_PARTY_REQUESTS)) == 1)
668                     .putBoolean(GOOGLE_ANALYTICS, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(GOOGLE_ANALYTICS)) == 1)
669                     .putBoolean(FACEBOOK_CLICK_IDS, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(FACEBOOK_CLICK_IDS)) == 1)
670                     .putBoolean(TWITTER_AMP_REDIRECTS, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(TWITTER_AMP_REDIRECTS)) == 1)
671                     .putString(SEARCH, importPreferencesCursor.getString(importPreferencesCursor.getColumnIndex(SEARCH)))
672                     .putString(SEARCH_CUSTOM_URL, importPreferencesCursor.getString(importPreferencesCursor.getColumnIndex(SEARCH_CUSTOM_URL)))
673                     .putString(PROXY, importPreferencesCursor.getString(importPreferencesCursor.getColumnIndex(PROXY)))
674                     .putString(PROXY_CUSTOM_HOST, importPreferencesCursor.getString(importPreferencesCursor.getColumnIndex(PROXY_CUSTOM_HOST)))
675                     .putString(PROXY_CUSTOM_PORT, importPreferencesCursor.getString(importPreferencesCursor.getColumnIndex(PROXY_CUSTOM_PORT)))
676                     .putBoolean(FULL_SCREEN_BROWSING_MODE, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(FULL_SCREEN_BROWSING_MODE)) == 1)
677                     .putBoolean(HIDE_APP_BAR, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(HIDE_APP_BAR)) == 1)
678                     .putBoolean(CLEAR_EVERYTHING, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(CLEAR_EVERYTHING)) == 1)
679                     .putBoolean(CLEAR_COOKIES, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(CLEAR_COOKIES)) == 1)
680                     .putBoolean(CLEAR_DOM_STORAGE, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(CLEAR_DOM_STORAGE)) == 1)
681                     // Clear form data can be removed once the minimum API >= 26.
682                     .putBoolean(CLEAR_FORM_DATA, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(CLEAR_FORM_DATA)) == 1)
683                     .putBoolean(CLEAR_CACHE, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(CLEAR_CACHE)) == 1)
684                     .putString(HOMEPAGE, importPreferencesCursor.getString(importPreferencesCursor.getColumnIndex(HOMEPAGE)))
685                     .putString(FONT_SIZE, importPreferencesCursor.getString(importPreferencesCursor.getColumnIndex(FONT_SIZE)))
686                     .putBoolean(OPEN_INTENTS_IN_NEW_TAB, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(OPEN_INTENTS_IN_NEW_TAB)) == 1)
687                     .putBoolean(SWIPE_TO_REFRESH, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(SWIPE_TO_REFRESH)) == 1)
688                     .putBoolean(SCROLL_APP_BAR, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(SCROLL_APP_BAR)) == 1)
689                     .putBoolean(DISPLAY_ADDITIONAL_APP_BAR_ICONS, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(DISPLAY_ADDITIONAL_APP_BAR_ICONS)) == 1)
690                     .putBoolean(DOWNLOAD_WITH_EXTERNAL_APP, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(DOWNLOAD_WITH_EXTERNAL_APP)) == 1)
691                     .putBoolean(DARK_THEME, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(DARK_THEME)) == 1)
692                     .putBoolean(NIGHT_MODE, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(NIGHT_MODE)) == 1)
693                     .putBoolean(WIDE_VIEWPORT, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(WIDE_VIEWPORT)) == 1)
694                     .putBoolean(DISPLAY_WEBPAGE_IMAGES, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(DISPLAY_WEBPAGE_IMAGES)) == 1)
695                     .apply();
696
697             // Close the preferences cursor.
698             importPreferencesCursor.close();
699
700
701             // Close the import database.
702             importDatabase.close();
703
704             // Create strings for the temporary database files.
705             String shmFileString = temporaryImportFileString + "-shm";
706             String walFileString = temporaryImportFileString + "-wal";
707             String journalFileString = temporaryImportFileString + "-journal";
708
709             // Get `Files` for the temporary database files.
710             File shmFile = new File(shmFileString);
711             File walFile = new File(walFileString);
712             File journalFile = new File(journalFileString);
713
714             // Delete the Shared Memory file if it exists.
715             if (shmFile.exists()) {
716                 //noinspection ResultOfMethodCallIgnored
717                 shmFile.delete();
718             }
719
720             // Delete the Write Ahead Log file if it exists.
721             if (walFile.exists()) {
722                 //noinspection ResultOfMethodCallIgnored
723                 walFile.delete();
724             }
725
726             // Delete the Journal file if it exists.
727             if (journalFile.exists()) {
728                 //noinspection ResultOfMethodCallIgnored
729                 journalFile.delete();
730             }
731
732             // Delete the temporary import file.
733             //noinspection ResultOfMethodCallIgnored
734             temporaryImportFile.delete();
735
736             // Import successful.
737             return IMPORT_SUCCESSFUL;
738         } catch (Exception exception) {
739             // Return the import error.
740             return exception.toString();
741         }
742     }
743 }