Remove third-party cookies. https://redmine.stoutner.com/issues/601
[PrivacyBrowser.git] / app / src / main / java / com / stoutner / privacybrowser / helpers / ImportExportDatabaseHelper.java
1 /*
2  * Copyright © 2018-2021 Soren Stoutner <soren@stoutner.com>.
3  *
4  * This file is part of Privacy Browser <https://www.stoutner.com/privacy-browser>.
5  *
6  * Privacy Browser is free software: you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation, either version 3 of the License, or
9  * (at your option) any later version.
10  *
11  * Privacy Browser is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with Privacy Browser.  If not, see <http://www.gnu.org/licenses/>.
18  */
19
20 package com.stoutner.privacybrowser.helpers;
21
22 import android.content.ContentValues;
23 import android.content.Context;
24 import android.content.SharedPreferences;
25 import android.database.Cursor;
26 import android.database.DatabaseUtils;
27 import android.database.sqlite.SQLiteDatabase;
28 import android.preference.PreferenceManager;
29
30 import com.stoutner.privacybrowser.R;
31
32 import java.io.File;
33 import java.io.FileInputStream;
34 import java.io.FileOutputStream;
35 import java.io.InputStream;
36 import java.io.OutputStream;
37
38 public class ImportExportDatabaseHelper {
39     // Declare the public constants.
40     public static final String EXPORT_SUCCESSFUL = "Export Successful";
41     public static final String IMPORT_SUCCESSFUL = "Import Successful";
42
43     // Declare the class constants.
44     private static final int SCHEMA_VERSION = 14;
45     private static final String PREFERENCES_TABLE = "preferences";
46
47     // Declare the preferences constants.
48     private static final String _ID = "_id";
49     private static final String JAVASCRIPT = "javascript";
50     private static final String COOKIES = "cookies";
51     private static final String DOM_STORAGE = "dom_storage";
52     private static final String SAVE_FORM_DATA = "save_form_data";
53     private static final String USER_AGENT = "user_agent";
54     private static final String CUSTOM_USER_AGENT = "custom_user_agent";
55     private static final String INCOGNITO_MODE = "incognito_mode";
56     private static final String ALLOW_SCREENSHOTS = "allow_screenshots";
57     private static final String EASYLIST = "easylist";
58     private static final String EASYPRIVACY = "easyprivacy";
59     private static final String FANBOYS_ANNOYANCE_LIST = "fanboys_annoyance_list";
60     private static final String FANBOYS_SOCIAL_BLOCKING_LIST = "fanboys_social_blocking_list";
61     private static final String ULTRALIST = "ultralist";
62     private static final String ULTRAPRIVACY = "ultraprivacy";
63     private static final String BLOCK_ALL_THIRD_PARTY_REQUESTS = "block_all_third_party_requests";
64     private static final String GOOGLE_ANALYTICS = "google_analytics";
65     private static final String FACEBOOK_CLICK_IDS = "facebook_click_ids";
66     private static final String TWITTER_AMP_REDIRECTS = "twitter_amp_redirects";
67     private static final String SEARCH = "search";
68     private static final String SEARCH_CUSTOM_URL = "search_custom_url";
69     private static final String PROXY = "proxy";
70     private static final String PROXY_CUSTOM_URL = "proxy_custom_url";
71     private static final String FULL_SCREEN_BROWSING_MODE = "full_screen_browsing_mode";
72     private static final String HIDE_APP_BAR = "hide_app_bar";
73     private static final String CLEAR_EVERYTHING = "clear_everything";
74     private static final String CLEAR_COOKIES = "clear_cookies";
75     private static final String CLEAR_DOM_STORAGE = "clear_dom_storage";
76     private static final String CLEAR_FORM_DATA = "clear_form_data";
77     private static final String CLEAR_LOGCAT = "clear_logcat";
78     private static final String CLEAR_CACHE = "clear_cache";
79     private static final String HOMEPAGE = "homepage";
80     private static final String FONT_SIZE = "font_size";
81     private static final String OPEN_INTENTS_IN_NEW_TAB = "open_intents_in_new_tab";
82     private static final String SWIPE_TO_REFRESH = "swipe_to_refresh";
83     private static final String SCROLL_APP_BAR = "scroll_app_bar";
84     private static final String DISPLAY_ADDITIONAL_APP_BAR_ICONS = "display_additional_app_bar_icons";
85     private static final String APP_THEME = "app_theme";
86     private static final String WEBVIEW_THEME = "webview_theme";
87     private static final String WIDE_VIEWPORT = "wide_viewport";
88     private static final String DISPLAY_WEBPAGE_IMAGES = "display_webpage_images";
89
90     public String importUnencrypted(InputStream importFileInputStream, Context context){
91         try {
92             // Create a temporary import file.
93             File temporaryImportFile = File.createTempFile("temporary_import_file", null, context.getCacheDir());
94
95             // Create a temporary file output stream.
96             FileOutputStream temporaryImportFileOutputStream = new FileOutputStream(temporaryImportFile);
97
98             // Create a transfer byte array.
99             byte[] transferByteArray = new byte[1024];
100
101             // Create an integer to track the number of bytes read.
102             int bytesRead;
103
104             // Copy the import file to the temporary import file.
105             while ((bytesRead = importFileInputStream.read(transferByteArray)) > 0) {
106                 temporaryImportFileOutputStream.write(transferByteArray, 0, bytesRead);
107             }
108
109             // Flush the temporary import file output stream.
110             temporaryImportFileOutputStream.flush();
111
112             // Close the file streams.
113             importFileInputStream.close();
114             temporaryImportFileOutputStream.close();
115
116
117             // Get a handle for the shared preference.
118             SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(context);
119
120             // Open the import database.  Once the minimum API >= 27 the file can be opened directly without using the string.
121             SQLiteDatabase importDatabase = SQLiteDatabase.openDatabase(temporaryImportFile.toString(), null, SQLiteDatabase.OPEN_READWRITE);
122
123             // Get the database version.
124             int importDatabaseVersion = importDatabase.getVersion();
125
126             // Upgrade the database if needed.
127             if (importDatabaseVersion < SCHEMA_VERSION) {
128                 switch (importDatabaseVersion) {
129                     // Upgrade from schema version 1, Privacy Browser 2.13.
130                     case 1:
131                         // Previously this upgrade added `download_with_external_app` to the Preferences table.  But that is now removed in schema version 10.
132
133                     // Upgrade from schema version 2, Privacy Browser 2.14.
134                     case 2:
135                         // Once the SQLite version is >= 3.25.0 `ALTER TABLE RENAME COLUMN` can be used.  <https://www.sqlite.org/lang_altertable.html> <https://www.sqlite.org/changes.html>
136                         // <https://developer.android.com/reference/android/database/sqlite/package-summary>
137                         // In the meantime, a new column must be created with the new name.  There is no need to delete the old column on the temporary import database.
138
139                         // Create the new font size column.
140                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + FONT_SIZE + " TEXT");
141
142                         // Populate the preferences table with the current font size value.
143                         importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + FONT_SIZE + " = default_font_size");
144
145                     // Upgrade from schema version 3, Privacy Browser 2.15.
146                     case 3:
147                         // Add the Pinned IP Addresses columns to the domains table.
148                         importDatabase.execSQL("ALTER TABLE " + DomainsDatabaseHelper.DOMAINS_TABLE + " ADD COLUMN " + DomainsDatabaseHelper.PINNED_IP_ADDRESSES + " BOOLEAN");
149                         importDatabase.execSQL("ALTER TABLE " + DomainsDatabaseHelper.DOMAINS_TABLE + " ADD COLUMN " + DomainsDatabaseHelper.IP_ADDRESSES + " TEXT");
150
151                     // Upgrade from schema version 4, Privacy Browser 2.16.
152                     case 4:
153                         // Add the hide and scroll app bar columns to the preferences table.
154                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + HIDE_APP_BAR + " BOOLEAN");
155                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + SCROLL_APP_BAR + " BOOLEAN");
156
157                         // Get the current hide and scroll app bar settings.
158                         boolean hideAppBar = sharedPreferences.getBoolean(HIDE_APP_BAR, true);
159                         boolean scrollAppBar = sharedPreferences.getBoolean(SCROLL_APP_BAR, true);
160
161                         // Populate the preferences table with the current app bar values.
162                         if (hideAppBar) {
163                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + HIDE_APP_BAR + " = " + 1);
164                         } else {
165                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + HIDE_APP_BAR + " = " + 0);
166                         }
167
168                         if (scrollAppBar) {
169                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + SCROLL_APP_BAR + " = " + 1);
170                         } else {
171                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + SCROLL_APP_BAR + " = " + 0);
172                         }
173
174                     // Upgrade from schema version 5, Privacy Browser 2.17.
175                     case 5:
176                         // Add the open intents in new tab column to the preferences table.
177                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + OPEN_INTENTS_IN_NEW_TAB + " BOOLEAN");
178
179                         // Get the current open intents in new tab preference.
180                         boolean openIntentsInNewTab = sharedPreferences.getBoolean(OPEN_INTENTS_IN_NEW_TAB, true);
181
182                         // Populate the preferences table with the current open intents value.
183                         if (openIntentsInNewTab) {
184                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + OPEN_INTENTS_IN_NEW_TAB + " = " + 1);
185                         } else {
186                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + OPEN_INTENTS_IN_NEW_TAB + " = " + 0);
187                         }
188
189                     // Upgrade from schema version 6, Privacy Browser 3.0.
190                     case 6:
191                         // Add the wide viewport column to the domains table.
192                         importDatabase.execSQL("ALTER TABLE " + DomainsDatabaseHelper.DOMAINS_TABLE + " ADD COLUMN " + DomainsDatabaseHelper.WIDE_VIEWPORT + " INTEGER");
193
194                         // Add the Google Analytics, Facebook Click IDs, Twitter AMP redirects, and wide viewport columns to the preferences table.
195                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + GOOGLE_ANALYTICS + " BOOLEAN");
196                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + FACEBOOK_CLICK_IDS + " BOOLEAN");
197                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + TWITTER_AMP_REDIRECTS + " BOOLEAN");
198                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + WIDE_VIEWPORT + " BOOLEAN");
199
200                         // Get the current preference values.
201                         boolean googleAnalytics = sharedPreferences.getBoolean(GOOGLE_ANALYTICS, true);
202                         boolean facebookClickIds = sharedPreferences.getBoolean(FACEBOOK_CLICK_IDS, true);
203                         boolean twitterAmpRedirects = sharedPreferences.getBoolean(TWITTER_AMP_REDIRECTS, true);
204                         boolean wideViewport = sharedPreferences.getBoolean(WIDE_VIEWPORT, true);
205
206                         // Populate the preferences with the current Google Analytics value.
207                         if (googleAnalytics) {
208                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + GOOGLE_ANALYTICS + " = " + 1);
209                         } else {
210                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + GOOGLE_ANALYTICS + " = " + 0);
211                         }
212
213                         // Populate the preferences with the current Facebook Click IDs value.
214                         if (facebookClickIds) {
215                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + FACEBOOK_CLICK_IDS + " = " + 1);
216                         } else {
217                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + FACEBOOK_CLICK_IDS + " = " + 0);
218                         }
219
220                         // Populate the preferences table with the current Twitter AMP redirects value.
221                         if (twitterAmpRedirects) {
222                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + TWITTER_AMP_REDIRECTS + " = " + 1);
223                         } else {
224                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + TWITTER_AMP_REDIRECTS + " = " + 0);
225                         }
226
227                         // Populate the preferences table with the current wide viewport value.
228                         if (wideViewport) {
229                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + WIDE_VIEWPORT + " = " + 1);
230                         } else {
231                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + WIDE_VIEWPORT + " = " + 0);
232                         }
233
234                     // Upgrade from schema version 7, Privacy Browser 3.1.
235                     case 7:
236                         // Add the UltraList column to the domains table.
237                         importDatabase.execSQL("ALTER TABLE " + DomainsDatabaseHelper.DOMAINS_TABLE + " ADD COLUMN " + DomainsDatabaseHelper.ULTRALIST + " BOOLEAN");
238
239                         // Add the UltraList column to the preferences table.
240                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + ULTRALIST + " BOOLEAN");
241
242                         // Get the current preference values.
243                         boolean ultraList = sharedPreferences.getBoolean(ULTRALIST, true);
244
245                         // Populate the preferences tables with the current UltraList value.
246                         if (ultraList) {
247                             importDatabase.execSQL("UPDATE " + DomainsDatabaseHelper.DOMAINS_TABLE + " SET " + DomainsDatabaseHelper.ULTRALIST + " = " + 1);
248                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + ULTRALIST + " = " + 1);
249                         } else {
250                             importDatabase.execSQL("UPDATE " + DomainsDatabaseHelper.DOMAINS_TABLE + " SET " + DomainsDatabaseHelper.ULTRALIST + " = " + 0);
251                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + ULTRALIST + " = " + 0);
252                         }
253
254                     // Upgrade from schema version 8, Privacy Browser 3.2.
255                     case 8:
256                         // Add the new proxy columns to the preferences table.
257                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + PROXY + " TEXT");
258                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + PROXY_CUSTOM_URL + " TEXT");
259
260                         // Get the current proxy values.
261                         String proxy = sharedPreferences.getString(PROXY, context.getString(R.string.proxy_default_value));
262                         String proxyCustomUrl = sharedPreferences.getString(PROXY_CUSTOM_URL, context.getString(R.string.proxy_custom_url_default_value));
263
264                         // SQL escape the proxy custom URL string.
265                         proxyCustomUrl = DatabaseUtils.sqlEscapeString(proxyCustomUrl);
266
267                         // Populate the preferences table with the current proxy values. The proxy custom URL does not need to be surrounded by `'` because it was SLQ escaped above.
268                         importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + PROXY + " = '" + proxy + "'");
269                         importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + PROXY_CUSTOM_URL + " = " + proxyCustomUrl);
270
271                     // Upgrade from schema version 9, Privacy Browser 3.3.
272                     case 9:
273                         // Previously this upgrade added `download_location` and `download_custom_location` to the Preferences table.  But they are now removed in schema version 13.
274
275                     // Upgrade from schema version 10, Privacy Browser 3.4.
276                     case 10:
277                         // Add the app theme column to the preferences table.
278                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + APP_THEME + " TEXT");
279
280                         // Get a cursor for the dark theme preference.
281                         Cursor darkThemePreferencesCursor = importDatabase.rawQuery("SELECT dark_theme FROM " + PREFERENCES_TABLE, null);
282
283                         // Move to the first preference.
284                         darkThemePreferencesCursor.moveToFirst();
285
286                         // Get the old dark theme value, which is in column 0.
287                         int darkTheme = darkThemePreferencesCursor.getInt(0);
288
289                         // Close the dark theme preference cursor.
290                         darkThemePreferencesCursor.close();
291
292                         // Populate the app theme according to the old dark theme preference.
293                         if (darkTheme == 0) {  // A light theme was selected.
294                             // Set the app theme to be the system default.
295                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + APP_THEME + " = 'System default'");
296                         } else {  // A dark theme was selected.
297                             // Set the app theme to be dark.
298                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + APP_THEME + " = 'Dark'");
299                         }
300
301                         // Add the WebView theme to the domains table.  This defaults to 0, which is `System default`, so a separate step isn't needed to populate the database.
302                         importDatabase.execSQL("ALTER TABLE " + DomainsDatabaseHelper.DOMAINS_TABLE + " ADD COLUMN " + DomainsDatabaseHelper.WEBVIEW_THEME + " INTEGER");
303
304                         // Add the WebView theme to the preferences table.
305                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + WEBVIEW_THEME + " TEXT");
306
307                         // Get the WebView theme default value string.
308                         String webViewThemeDefaultValue = context.getString(R.string.webview_theme_default_value);
309
310                         // Set the WebView theme in the preferences table to be the default.
311                         importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + WEBVIEW_THEME + " = " + "'" + webViewThemeDefaultValue + "'");
312
313                     // Upgrade from schema version 11, Privacy Browser 3.5.
314                     case 11:
315                         // Add the clear logcat column to the preferences table.
316                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + CLEAR_LOGCAT + " BOOLEAN");
317
318                         // Get the current clear logcat value.
319                         boolean clearLogcat = sharedPreferences.getBoolean(CLEAR_LOGCAT, true);
320
321                         // Populate the preference table with the current clear logcat value.
322                         if (clearLogcat) {
323                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + CLEAR_LOGCAT + " = " + 1);
324                         } else {
325                             importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + CLEAR_LOGCAT + " = " + 0);
326                         }
327
328                     // Upgrade from schema version 12, Privacy Browser 3.6.
329                     case 12:
330                         // Do nothing.  `download_location` and `download_custom_location` were removed from the preferences table.
331
332                     // Upgrade from schema version 13, Privacy Browser 3.7
333                     case 13:
334                         // `enabledthirdpartycookies` was removed from the domains table.  `do_not_track` and `third_party_cookies` were removed from the preferences table.
335
336                         // Once the SQLite version is >= 3.25.0 `ALTER TABLE RENAME COLUMN` can be used.  <https://www.sqlite.org/lang_altertable.html> <https://www.sqlite.org/changes.html>
337                         // <https://developer.android.com/reference/android/database/sqlite/package-summary>
338                         // In the meantime, a new column must be created with the new name.  There is no need to delete the old column on the temporary import database.
339
340                         // Create the new cookies columns.
341                         importDatabase.execSQL("ALTER TABLE " + DomainsDatabaseHelper.DOMAINS_TABLE + " ADD COLUMN " + DomainsDatabaseHelper.COOKIES + " BOOLEAN");
342                         importDatabase.execSQL("ALTER TABLE " + PREFERENCES_TABLE + " ADD COLUMN " + COOKIES + " BOOLEAN");
343
344                         // Copy the data from the old cookies columns to the new ones.
345                         importDatabase.execSQL("UPDATE " + DomainsDatabaseHelper.DOMAINS_TABLE + " SET " + DomainsDatabaseHelper.COOKIES + " = enablefirstpartycookies");
346                         importDatabase.execSQL("UPDATE " + PREFERENCES_TABLE + " SET " + COOKIES + " = first_party_cookies");
347                 }
348             }
349
350             // Get a cursor for the bookmarks table.
351             Cursor importBookmarksCursor = importDatabase.rawQuery("SELECT * FROM " + BookmarksDatabaseHelper.BOOKMARKS_TABLE, null);
352
353             // Delete the current bookmarks database.
354             context.deleteDatabase(BookmarksDatabaseHelper.BOOKMARKS_DATABASE);
355
356             // Create a new bookmarks database.  The `0` specifies the database version, but that is ignored and set instead using a constant in `BookmarksDatabaseHelper`.
357             BookmarksDatabaseHelper bookmarksDatabaseHelper = new BookmarksDatabaseHelper(context, null, null, 0);
358
359             // Move to the first bookmark.
360             importBookmarksCursor.moveToFirst();
361
362             // Copy the data from the import bookmarks cursor into the bookmarks database.
363             for (int i = 0; i < importBookmarksCursor.getCount(); i++) {
364                 // Extract the record from the cursor and store the data in a ContentValues.
365                 ContentValues bookmarksContentValues = new ContentValues();
366                 bookmarksContentValues.put(BookmarksDatabaseHelper.BOOKMARK_NAME, importBookmarksCursor.getString(importBookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_NAME)));
367                 bookmarksContentValues.put(BookmarksDatabaseHelper.BOOKMARK_URL, importBookmarksCursor.getString(importBookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_URL)));
368                 bookmarksContentValues.put(BookmarksDatabaseHelper.PARENT_FOLDER, importBookmarksCursor.getString(importBookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.PARENT_FOLDER)));
369                 bookmarksContentValues.put(BookmarksDatabaseHelper.DISPLAY_ORDER, importBookmarksCursor.getInt(importBookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.DISPLAY_ORDER)));
370                 bookmarksContentValues.put(BookmarksDatabaseHelper.IS_FOLDER, importBookmarksCursor.getInt(importBookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.IS_FOLDER)));
371                 bookmarksContentValues.put(BookmarksDatabaseHelper.FAVORITE_ICON, importBookmarksCursor.getBlob(importBookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.FAVORITE_ICON)));
372
373                 // Insert the record into the export database.
374                 bookmarksDatabaseHelper.createBookmark(bookmarksContentValues);
375
376                 // Advance to the next record.
377                 importBookmarksCursor.moveToNext();
378             }
379
380             // Close the bookmarks cursor.
381             importBookmarksCursor.close();
382
383             // Close the bookmarks database.
384             bookmarksDatabaseHelper.close();
385
386
387             // Get a cursor for the domains table.
388             Cursor importDomainsCursor = importDatabase.rawQuery("SELECT * FROM " + DomainsDatabaseHelper.DOMAINS_TABLE + " ORDER BY " + DomainsDatabaseHelper.DOMAIN_NAME + " ASC", null);
389
390             // Delete the current domains database.
391             context.deleteDatabase(DomainsDatabaseHelper.DOMAINS_DATABASE);
392
393             // Create a new domains database.  The `0` specifies the database version, but that is ignored and set instead using a constant in `DomainsDatabaseHelper`.
394             DomainsDatabaseHelper domainsDatabaseHelper = new DomainsDatabaseHelper(context, null, null, 0);
395
396             // Move to the first domain.
397             importDomainsCursor.moveToFirst();
398
399             // Copy the data from the import domains cursor into the domains database.
400             for (int i = 0; i < importDomainsCursor.getCount(); i++) {
401                 // Extract the record from the cursor and store the data in a ContentValues.
402                 ContentValues domainsContentValues = new ContentValues();
403                 domainsContentValues.put(DomainsDatabaseHelper.DOMAIN_NAME, importDomainsCursor.getString(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.DOMAIN_NAME)));
404                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_JAVASCRIPT, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_JAVASCRIPT)));
405                 domainsContentValues.put(DomainsDatabaseHelper.COOKIES, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.COOKIES)));
406                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_DOM_STORAGE, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_DOM_STORAGE)));
407                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_FORM_DATA, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_FORM_DATA)));
408                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_EASYLIST, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_EASYLIST)));
409                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_EASYPRIVACY, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_EASYPRIVACY)));
410                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_FANBOYS_ANNOYANCE_LIST,
411                         importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_FANBOYS_ANNOYANCE_LIST)));
412                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_FANBOYS_SOCIAL_BLOCKING_LIST,
413                         importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_FANBOYS_SOCIAL_BLOCKING_LIST)));
414                 domainsContentValues.put(DomainsDatabaseHelper.ULTRALIST, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.ULTRALIST)));
415                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_ULTRAPRIVACY, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_ULTRAPRIVACY)));
416                 domainsContentValues.put(DomainsDatabaseHelper.BLOCK_ALL_THIRD_PARTY_REQUESTS,
417                         importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.BLOCK_ALL_THIRD_PARTY_REQUESTS)));
418                 domainsContentValues.put(DomainsDatabaseHelper.USER_AGENT, importDomainsCursor.getString(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.USER_AGENT)));
419                 domainsContentValues.put(DomainsDatabaseHelper.FONT_SIZE, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.FONT_SIZE)));
420                 domainsContentValues.put(DomainsDatabaseHelper.SWIPE_TO_REFRESH, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.SWIPE_TO_REFRESH)));
421                 domainsContentValues.put(DomainsDatabaseHelper.WEBVIEW_THEME, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.WEBVIEW_THEME)));
422                 domainsContentValues.put(DomainsDatabaseHelper.WIDE_VIEWPORT, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.WIDE_VIEWPORT)));
423                 domainsContentValues.put(DomainsDatabaseHelper.DISPLAY_IMAGES, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.DISPLAY_IMAGES)));
424                 domainsContentValues.put(DomainsDatabaseHelper.PINNED_SSL_CERTIFICATE, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.PINNED_SSL_CERTIFICATE)));
425                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_TO_COMMON_NAME, importDomainsCursor.getString(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_TO_COMMON_NAME)));
426                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_TO_ORGANIZATION, importDomainsCursor.getString(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_TO_ORGANIZATION)));
427                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_TO_ORGANIZATIONAL_UNIT,
428                         importDomainsCursor.getString(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_TO_ORGANIZATIONAL_UNIT)));
429                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_BY_COMMON_NAME, importDomainsCursor.getString(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_BY_COMMON_NAME)));
430                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_BY_ORGANIZATION, importDomainsCursor.getString(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_BY_ORGANIZATION)));
431                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_BY_ORGANIZATIONAL_UNIT,
432                         importDomainsCursor.getString(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_BY_ORGANIZATIONAL_UNIT)));
433                 domainsContentValues.put(DomainsDatabaseHelper.SSL_START_DATE, importDomainsCursor.getLong(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_START_DATE)));
434                 domainsContentValues.put(DomainsDatabaseHelper.SSL_END_DATE, importDomainsCursor.getLong(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_END_DATE)));
435                 domainsContentValues.put(DomainsDatabaseHelper.PINNED_IP_ADDRESSES, importDomainsCursor.getInt(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.PINNED_IP_ADDRESSES)));
436                 domainsContentValues.put(DomainsDatabaseHelper.IP_ADDRESSES, importDomainsCursor.getString(importDomainsCursor.getColumnIndex(DomainsDatabaseHelper.IP_ADDRESSES)));
437
438                 // Insert the record into the export database.
439                 domainsDatabaseHelper.addDomain(domainsContentValues);
440
441                 // Advance to the next record.
442                 importDomainsCursor.moveToNext();
443             }
444
445             // Close the domains cursor.
446             importDomainsCursor.close();
447
448             // Close the domains database.
449             domainsDatabaseHelper.close();
450
451
452             // Get a cursor for the preferences table.
453             Cursor importPreferencesCursor = importDatabase.rawQuery("SELECT * FROM " + PREFERENCES_TABLE, null);
454
455             // Move to the first preference.
456             importPreferencesCursor.moveToFirst();
457
458             // Import the preference data.
459             sharedPreferences.edit()
460                     .putBoolean(JAVASCRIPT, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(JAVASCRIPT)) == 1)
461                     .putBoolean(COOKIES, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(COOKIES)) == 1)
462                     .putBoolean(DOM_STORAGE, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(DOM_STORAGE)) == 1)
463                     // Save form data can be removed once the minimum API >= 26.
464                     .putBoolean(SAVE_FORM_DATA, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(SAVE_FORM_DATA)) == 1)
465                     .putString(USER_AGENT, importPreferencesCursor.getString(importPreferencesCursor.getColumnIndex(USER_AGENT)))
466                     .putString(CUSTOM_USER_AGENT, importPreferencesCursor.getString(importPreferencesCursor.getColumnIndex(CUSTOM_USER_AGENT)))
467                     .putBoolean(INCOGNITO_MODE, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(INCOGNITO_MODE)) == 1)
468                     .putBoolean(ALLOW_SCREENSHOTS, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(ALLOW_SCREENSHOTS)) == 1)
469                     .putBoolean(EASYLIST, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(EASYLIST)) == 1)
470                     .putBoolean(EASYPRIVACY, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(EASYPRIVACY)) == 1)
471                     .putBoolean(FANBOYS_ANNOYANCE_LIST, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(FANBOYS_ANNOYANCE_LIST)) == 1)
472                     .putBoolean(FANBOYS_SOCIAL_BLOCKING_LIST, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(FANBOYS_SOCIAL_BLOCKING_LIST)) == 1)
473                     .putBoolean(ULTRALIST, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(ULTRALIST)) == 1)
474                     .putBoolean(ULTRAPRIVACY, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(ULTRAPRIVACY)) == 1)
475                     .putBoolean(BLOCK_ALL_THIRD_PARTY_REQUESTS, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(BLOCK_ALL_THIRD_PARTY_REQUESTS)) == 1)
476                     .putBoolean(GOOGLE_ANALYTICS, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(GOOGLE_ANALYTICS)) == 1)
477                     .putBoolean(FACEBOOK_CLICK_IDS, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(FACEBOOK_CLICK_IDS)) == 1)
478                     .putBoolean(TWITTER_AMP_REDIRECTS, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(TWITTER_AMP_REDIRECTS)) == 1)
479                     .putString(SEARCH, importPreferencesCursor.getString(importPreferencesCursor.getColumnIndex(SEARCH)))
480                     .putString(SEARCH_CUSTOM_URL, importPreferencesCursor.getString(importPreferencesCursor.getColumnIndex(SEARCH_CUSTOM_URL)))
481                     .putString(PROXY, importPreferencesCursor.getString(importPreferencesCursor.getColumnIndex(PROXY)))
482                     .putString(PROXY_CUSTOM_URL, importPreferencesCursor.getString(importPreferencesCursor.getColumnIndex(PROXY_CUSTOM_URL)))
483                     .putBoolean(FULL_SCREEN_BROWSING_MODE, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(FULL_SCREEN_BROWSING_MODE)) == 1)
484                     .putBoolean(HIDE_APP_BAR, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(HIDE_APP_BAR)) == 1)
485                     .putBoolean(CLEAR_EVERYTHING, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(CLEAR_EVERYTHING)) == 1)
486                     .putBoolean(CLEAR_COOKIES, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(CLEAR_COOKIES)) == 1)
487                     .putBoolean(CLEAR_DOM_STORAGE, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(CLEAR_DOM_STORAGE)) == 1)
488                     // Clear form data can be removed once the minimum API >= 26.
489                     .putBoolean(CLEAR_FORM_DATA, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(CLEAR_FORM_DATA)) == 1)
490                     .putBoolean(CLEAR_LOGCAT, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(CLEAR_LOGCAT)) == 1)
491                     .putBoolean(CLEAR_CACHE, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(CLEAR_CACHE)) == 1)
492                     .putString(HOMEPAGE, importPreferencesCursor.getString(importPreferencesCursor.getColumnIndex(HOMEPAGE)))
493                     .putString(FONT_SIZE, importPreferencesCursor.getString(importPreferencesCursor.getColumnIndex(FONT_SIZE)))
494                     .putBoolean(OPEN_INTENTS_IN_NEW_TAB, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(OPEN_INTENTS_IN_NEW_TAB)) == 1)
495                     .putBoolean(SWIPE_TO_REFRESH, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(SWIPE_TO_REFRESH)) == 1)
496                     .putBoolean(SCROLL_APP_BAR, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(SCROLL_APP_BAR)) == 1)
497                     .putBoolean(DISPLAY_ADDITIONAL_APP_BAR_ICONS, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(DISPLAY_ADDITIONAL_APP_BAR_ICONS)) == 1)
498                     .putString(APP_THEME, importPreferencesCursor.getString(importPreferencesCursor.getColumnIndex(APP_THEME)))
499                     .putString(WEBVIEW_THEME, importPreferencesCursor.getString(importPreferencesCursor.getColumnIndex(WEBVIEW_THEME)))
500                     .putBoolean(WIDE_VIEWPORT, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(WIDE_VIEWPORT)) == 1)
501                     .putBoolean(DISPLAY_WEBPAGE_IMAGES, importPreferencesCursor.getInt(importPreferencesCursor.getColumnIndex(DISPLAY_WEBPAGE_IMAGES)) == 1)
502                     .apply();
503
504             // Close the preferences cursor.
505             importPreferencesCursor.close();
506
507             // Close the import database.
508             importDatabase.close();
509
510             // Delete the temporary import file database, journal, and other related auxiliary files.
511             SQLiteDatabase.deleteDatabase(temporaryImportFile);
512
513             // Import successful.
514             return IMPORT_SUCCESSFUL;
515         } catch (Exception exception) {
516             // Return the import error.
517             return exception.toString();
518         }
519     }
520
521     public String exportUnencrypted(OutputStream exportFileOutputStream, Context context) {
522         try {
523             // Create a temporary export file.
524             File temporaryExportFile = File.createTempFile("temporary_export_file", null, context.getCacheDir());
525
526             // Create the temporary export database.
527             SQLiteDatabase temporaryExportDatabase = SQLiteDatabase.openOrCreateDatabase(temporaryExportFile, null);
528
529             // Set the temporary export database version number.
530             temporaryExportDatabase.setVersion(SCHEMA_VERSION);
531
532
533             // Create the temporary export database bookmarks table.
534             temporaryExportDatabase.execSQL(BookmarksDatabaseHelper.CREATE_BOOKMARKS_TABLE);
535
536             // Open the bookmarks database.  The `0` specifies the database version, but that is ignored and set instead using a constant in `BookmarksDatabaseHelper`.
537             BookmarksDatabaseHelper bookmarksDatabaseHelper = new BookmarksDatabaseHelper(context, null, null, 0);
538
539             // Get a full bookmarks cursor.
540             Cursor bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarks();
541
542             // Move to the first bookmark.
543             bookmarksCursor.moveToFirst();
544
545             // Copy the data from the bookmarks cursor into the export database.
546             for (int i = 0; i < bookmarksCursor.getCount(); i++) {
547                 // Extract the record from the cursor and store the data in a ContentValues.
548                 ContentValues bookmarksContentValues = new ContentValues();
549                 bookmarksContentValues.put(BookmarksDatabaseHelper.BOOKMARK_NAME, bookmarksCursor.getString(bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_NAME)));
550                 bookmarksContentValues.put(BookmarksDatabaseHelper.BOOKMARK_URL, bookmarksCursor.getString(bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_URL)));
551                 bookmarksContentValues.put(BookmarksDatabaseHelper.PARENT_FOLDER, bookmarksCursor.getString(bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.PARENT_FOLDER)));
552                 bookmarksContentValues.put(BookmarksDatabaseHelper.DISPLAY_ORDER, bookmarksCursor.getInt(bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.DISPLAY_ORDER)));
553                 bookmarksContentValues.put(BookmarksDatabaseHelper.IS_FOLDER, bookmarksCursor.getInt(bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.IS_FOLDER)));
554                 bookmarksContentValues.put(BookmarksDatabaseHelper.FAVORITE_ICON, bookmarksCursor.getBlob(bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.FAVORITE_ICON)));
555
556                 // Insert the record into the temporary export database.
557                 temporaryExportDatabase.insert(BookmarksDatabaseHelper.BOOKMARKS_TABLE, null, bookmarksContentValues);
558
559                 // Advance to the next record.
560                 bookmarksCursor.moveToNext();
561             }
562
563             // Close the bookmarks database.
564             bookmarksCursor.close();
565             bookmarksDatabaseHelper.close();
566
567
568             // Create the temporary export database domains table.
569             temporaryExportDatabase.execSQL(DomainsDatabaseHelper.CREATE_DOMAINS_TABLE);
570
571             // Open the domains database.  The `0` specifies the database version, but that is ignored and set instead using a constant in `DomainsDatabaseHelper`.
572             DomainsDatabaseHelper domainsDatabaseHelper = new DomainsDatabaseHelper(context, null, null, 0);
573
574             // Get a full domains database cursor.
575             Cursor domainsCursor = domainsDatabaseHelper.getCompleteCursorOrderedByDomain();
576
577             // Move to the first domain.
578             domainsCursor.moveToFirst();
579
580             // Copy the data from the domains cursor into the export database.
581             for (int i = 0; i < domainsCursor.getCount(); i++) {
582                 // Extract the record from the cursor and store the data in a ContentValues.
583                 ContentValues domainsContentValues = new ContentValues();
584                 domainsContentValues.put(DomainsDatabaseHelper.DOMAIN_NAME, domainsCursor.getString(domainsCursor.getColumnIndex(DomainsDatabaseHelper.DOMAIN_NAME)));
585                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_JAVASCRIPT, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_JAVASCRIPT)));
586                 domainsContentValues.put(DomainsDatabaseHelper.COOKIES, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.COOKIES)));
587                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_DOM_STORAGE, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_DOM_STORAGE)));
588                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_FORM_DATA, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_FORM_DATA)));
589                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_EASYLIST, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_EASYLIST)));
590                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_EASYPRIVACY, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_EASYPRIVACY)));
591                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_FANBOYS_ANNOYANCE_LIST, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_FANBOYS_ANNOYANCE_LIST)));
592                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_FANBOYS_SOCIAL_BLOCKING_LIST, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_FANBOYS_SOCIAL_BLOCKING_LIST)));
593                 domainsContentValues.put(DomainsDatabaseHelper.ULTRALIST, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.ULTRALIST)));
594                 domainsContentValues.put(DomainsDatabaseHelper.ENABLE_ULTRAPRIVACY, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_ULTRAPRIVACY)));
595                 domainsContentValues.put(DomainsDatabaseHelper.BLOCK_ALL_THIRD_PARTY_REQUESTS, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.BLOCK_ALL_THIRD_PARTY_REQUESTS)));
596                 domainsContentValues.put(DomainsDatabaseHelper.USER_AGENT, domainsCursor.getString(domainsCursor.getColumnIndex(DomainsDatabaseHelper.USER_AGENT)));
597                 domainsContentValues.put(DomainsDatabaseHelper.FONT_SIZE, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.FONT_SIZE)));
598                 domainsContentValues.put(DomainsDatabaseHelper.SWIPE_TO_REFRESH, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.SWIPE_TO_REFRESH)));
599                 domainsContentValues.put(DomainsDatabaseHelper.WEBVIEW_THEME, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.WEBVIEW_THEME)));
600                 domainsContentValues.put(DomainsDatabaseHelper.WIDE_VIEWPORT, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.WIDE_VIEWPORT)));
601                 domainsContentValues.put(DomainsDatabaseHelper.DISPLAY_IMAGES, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.DISPLAY_IMAGES)));
602                 domainsContentValues.put(DomainsDatabaseHelper.PINNED_SSL_CERTIFICATE, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.PINNED_SSL_CERTIFICATE)));
603                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_TO_COMMON_NAME, domainsCursor.getString(domainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_TO_COMMON_NAME)));
604                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_TO_ORGANIZATION, domainsCursor.getString(domainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_TO_ORGANIZATION)));
605                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_TO_ORGANIZATIONAL_UNIT, domainsCursor.getString(domainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_TO_ORGANIZATIONAL_UNIT)));
606                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_BY_COMMON_NAME, domainsCursor.getString(domainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_BY_COMMON_NAME)));
607                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_BY_ORGANIZATION, domainsCursor.getString(domainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_BY_ORGANIZATION)));
608                 domainsContentValues.put(DomainsDatabaseHelper.SSL_ISSUED_BY_ORGANIZATIONAL_UNIT, domainsCursor.getString(domainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_BY_ORGANIZATIONAL_UNIT)));
609                 domainsContentValues.put(DomainsDatabaseHelper.SSL_START_DATE, domainsCursor.getLong(domainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_START_DATE)));
610                 domainsContentValues.put(DomainsDatabaseHelper.SSL_END_DATE, domainsCursor.getLong(domainsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_END_DATE)));
611                 domainsContentValues.put(DomainsDatabaseHelper.PINNED_IP_ADDRESSES, domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper.PINNED_IP_ADDRESSES)));
612                 domainsContentValues.put(DomainsDatabaseHelper.IP_ADDRESSES, domainsCursor.getString(domainsCursor.getColumnIndex(DomainsDatabaseHelper.IP_ADDRESSES)));
613
614                 // Insert the record into the temporary export database.
615                 temporaryExportDatabase.insert(DomainsDatabaseHelper.DOMAINS_TABLE, null, domainsContentValues);
616
617                 // Advance to the next record.
618                 domainsCursor.moveToNext();
619             }
620
621             // Close the domains database.
622             domainsCursor.close();
623             domainsDatabaseHelper.close();
624
625
626             // Prepare the preferences table SQL creation string.
627             String CREATE_PREFERENCES_TABLE = "CREATE TABLE " + PREFERENCES_TABLE + " (" +
628                     _ID + " INTEGER PRIMARY KEY, " +
629                     JAVASCRIPT + " BOOLEAN, " +
630                     COOKIES + " BOOLEAN, " +
631                     DOM_STORAGE + " BOOLEAN, " +
632                     SAVE_FORM_DATA + " BOOLEAN, " +
633                     USER_AGENT + " TEXT, " +
634                     CUSTOM_USER_AGENT + " TEXT, " +
635                     INCOGNITO_MODE + " BOOLEAN, " +
636                     ALLOW_SCREENSHOTS + " BOOLEAN, " +
637                     EASYLIST + " BOOLEAN, " +
638                     EASYPRIVACY + " BOOLEAN, " +
639                     FANBOYS_ANNOYANCE_LIST + " BOOLEAN, " +
640                     FANBOYS_SOCIAL_BLOCKING_LIST + " BOOLEAN, " +
641                     ULTRALIST + " BOOLEAN, " +
642                     ULTRAPRIVACY + " BOOLEAN, " +
643                     BLOCK_ALL_THIRD_PARTY_REQUESTS + " BOOLEAN, " +
644                     GOOGLE_ANALYTICS + " BOOLEAN, " +
645                     FACEBOOK_CLICK_IDS + " BOOLEAN, " +
646                     TWITTER_AMP_REDIRECTS + " BOOLEAN, " +
647                     SEARCH + " TEXT, " +
648                     SEARCH_CUSTOM_URL + " TEXT, " +
649                     PROXY + " TEXT, " +
650                     PROXY_CUSTOM_URL + " TEXT, " +
651                     FULL_SCREEN_BROWSING_MODE + " BOOLEAN, " +
652                     HIDE_APP_BAR + " BOOLEAN, " +
653                     CLEAR_EVERYTHING + " BOOLEAN, " +
654                     CLEAR_COOKIES + " BOOLEAN, " +
655                     CLEAR_DOM_STORAGE + " BOOLEAN, " +
656                     CLEAR_FORM_DATA + " BOOLEAN, " +
657                     CLEAR_LOGCAT + " BOOLEAN, " +
658                     CLEAR_CACHE + " BOOLEAN, " +
659                     HOMEPAGE + " TEXT, " +
660                     FONT_SIZE + " TEXT, " +
661                     OPEN_INTENTS_IN_NEW_TAB + " BOOLEAN, " +
662                     SWIPE_TO_REFRESH + " BOOLEAN, " +
663                     SCROLL_APP_BAR + " BOOLEAN, " +
664                     DISPLAY_ADDITIONAL_APP_BAR_ICONS + " BOOLEAN, " +
665                     APP_THEME + " TEXT, " +
666                     WEBVIEW_THEME + " TEXT, " +
667                     WIDE_VIEWPORT + " BOOLEAN, " +
668                     DISPLAY_WEBPAGE_IMAGES + " BOOLEAN)";
669
670             // Create the temporary export database preferences table.
671             temporaryExportDatabase.execSQL(CREATE_PREFERENCES_TABLE);
672
673             // Get a handle for the shared preference.
674             SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(context);
675
676             // Create a ContentValues with the preferences information.
677             ContentValues preferencesContentValues = new ContentValues();
678             preferencesContentValues.put(JAVASCRIPT, sharedPreferences.getBoolean(JAVASCRIPT, false));
679             preferencesContentValues.put(COOKIES, sharedPreferences.getBoolean(COOKIES, false));
680             preferencesContentValues.put(DOM_STORAGE, sharedPreferences.getBoolean(DOM_STORAGE, false));
681             preferencesContentValues.put(SAVE_FORM_DATA, sharedPreferences.getBoolean(SAVE_FORM_DATA, false));  // Save form data can be removed once the minimum API >= 26.
682             preferencesContentValues.put(USER_AGENT, sharedPreferences.getString(USER_AGENT, context.getString(R.string.user_agent_default_value)));
683             preferencesContentValues.put(CUSTOM_USER_AGENT, sharedPreferences.getString(CUSTOM_USER_AGENT, context.getString(R.string.custom_user_agent_default_value)));
684             preferencesContentValues.put(INCOGNITO_MODE, sharedPreferences.getBoolean(INCOGNITO_MODE, false));
685             preferencesContentValues.put(ALLOW_SCREENSHOTS, sharedPreferences.getBoolean(ALLOW_SCREENSHOTS, false));
686             preferencesContentValues.put(EASYLIST, sharedPreferences.getBoolean(EASYLIST, true));
687             preferencesContentValues.put(EASYPRIVACY, sharedPreferences.getBoolean(EASYPRIVACY, true));
688             preferencesContentValues.put(FANBOYS_ANNOYANCE_LIST, sharedPreferences.getBoolean(FANBOYS_ANNOYANCE_LIST, true));
689             preferencesContentValues.put(FANBOYS_SOCIAL_BLOCKING_LIST, sharedPreferences.getBoolean(FANBOYS_SOCIAL_BLOCKING_LIST, true));
690             preferencesContentValues.put(ULTRALIST, sharedPreferences.getBoolean(ULTRALIST, true));
691             preferencesContentValues.put(ULTRAPRIVACY, sharedPreferences.getBoolean(ULTRAPRIVACY, true));
692             preferencesContentValues.put(BLOCK_ALL_THIRD_PARTY_REQUESTS, sharedPreferences.getBoolean(BLOCK_ALL_THIRD_PARTY_REQUESTS, false));
693             preferencesContentValues.put(GOOGLE_ANALYTICS, sharedPreferences.getBoolean(GOOGLE_ANALYTICS, true));
694             preferencesContentValues.put(FACEBOOK_CLICK_IDS, sharedPreferences.getBoolean(FACEBOOK_CLICK_IDS, true));
695             preferencesContentValues.put(TWITTER_AMP_REDIRECTS, sharedPreferences.getBoolean(TWITTER_AMP_REDIRECTS, true));
696             preferencesContentValues.put(SEARCH, sharedPreferences.getString(SEARCH, context.getString(R.string.search_default_value)));
697             preferencesContentValues.put(SEARCH_CUSTOM_URL, sharedPreferences.getString(SEARCH_CUSTOM_URL, context.getString(R.string.search_custom_url_default_value)));
698             preferencesContentValues.put(PROXY, sharedPreferences.getString(PROXY, context.getString(R.string.proxy_default_value)));
699             preferencesContentValues.put(PROXY_CUSTOM_URL, sharedPreferences.getString(PROXY_CUSTOM_URL, context.getString(R.string.proxy_custom_url_default_value)));
700             preferencesContentValues.put(FULL_SCREEN_BROWSING_MODE, sharedPreferences.getBoolean(FULL_SCREEN_BROWSING_MODE, false));
701             preferencesContentValues.put(HIDE_APP_BAR, sharedPreferences.getBoolean(HIDE_APP_BAR, true));
702             preferencesContentValues.put(CLEAR_EVERYTHING, sharedPreferences.getBoolean(CLEAR_EVERYTHING, true));
703             preferencesContentValues.put(CLEAR_COOKIES, sharedPreferences.getBoolean(CLEAR_COOKIES, true));
704             preferencesContentValues.put(CLEAR_DOM_STORAGE, sharedPreferences.getBoolean(CLEAR_DOM_STORAGE, true));
705             preferencesContentValues.put(CLEAR_FORM_DATA, sharedPreferences.getBoolean(CLEAR_FORM_DATA, true));  // Clear form data can be removed once the minimum API >= 26.
706             preferencesContentValues.put(CLEAR_LOGCAT, sharedPreferences.getBoolean(CLEAR_LOGCAT, true));
707             preferencesContentValues.put(CLEAR_CACHE, sharedPreferences.getBoolean(CLEAR_CACHE, true));
708             preferencesContentValues.put(HOMEPAGE, sharedPreferences.getString(HOMEPAGE, context.getString(R.string.homepage_default_value)));
709             preferencesContentValues.put(FONT_SIZE, sharedPreferences.getString(FONT_SIZE, context.getString(R.string.font_size_default_value)));
710             preferencesContentValues.put(OPEN_INTENTS_IN_NEW_TAB, sharedPreferences.getBoolean(OPEN_INTENTS_IN_NEW_TAB, true));
711             preferencesContentValues.put(SWIPE_TO_REFRESH, sharedPreferences.getBoolean(SWIPE_TO_REFRESH, true));
712             preferencesContentValues.put(SCROLL_APP_BAR, sharedPreferences.getBoolean(SCROLL_APP_BAR, true));
713             preferencesContentValues.put(DISPLAY_ADDITIONAL_APP_BAR_ICONS, sharedPreferences.getBoolean(DISPLAY_ADDITIONAL_APP_BAR_ICONS, false));
714             preferencesContentValues.put(APP_THEME, sharedPreferences.getString(APP_THEME, context.getString(R.string.app_theme_default_value)));
715             preferencesContentValues.put(WEBVIEW_THEME, sharedPreferences.getString(WEBVIEW_THEME, context.getString(R.string.webview_theme_default_value)));
716             preferencesContentValues.put(WIDE_VIEWPORT, sharedPreferences.getBoolean(WIDE_VIEWPORT, true));
717             preferencesContentValues.put(DISPLAY_WEBPAGE_IMAGES, sharedPreferences.getBoolean(DISPLAY_WEBPAGE_IMAGES, true));
718
719             // Insert the preferences into the temporary export database.
720             temporaryExportDatabase.insert(PREFERENCES_TABLE, null, preferencesContentValues);
721
722             // Close the temporary export database.
723             temporaryExportDatabase.close();
724
725
726             // Create the temporary export file input stream.
727             FileInputStream temporaryExportFileInputStream = new FileInputStream(temporaryExportFile);
728
729             // Create a byte array.
730             byte[] transferByteArray = new byte[1024];
731
732             // Create an integer to track the number of bytes read.
733             int bytesRead;
734
735             // Copy the temporary export file to the export file output stream.
736             while ((bytesRead = temporaryExportFileInputStream.read(transferByteArray)) > 0) {
737                 exportFileOutputStream.write(transferByteArray, 0, bytesRead);
738             }
739
740             // Flush the export file output stream.
741             exportFileOutputStream.flush();
742
743             // Close the file streams.
744             temporaryExportFileInputStream.close();
745             exportFileOutputStream.close();
746
747             // Delete the temporary export file database, journal, and other related auxiliary files.
748             SQLiteDatabase.deleteDatabase(temporaryExportFile);
749
750             // Export successful.
751             return EXPORT_SUCCESSFUL;
752         } catch (Exception exception) {
753             // Return the export error.
754             return exception.toString();
755         }
756     }
757 }