BrowserProvider2.java revision 4e310c9873aa84ba4888327f88ac065d51874071
1/*
2 * Copyright (C) 2010 he Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License
15 */
16
17package com.android.browser.provider;
18
19import android.accounts.Account;
20import android.accounts.AccountManager;
21import android.app.SearchManager;
22import android.content.ContentResolver;
23import android.content.ContentUris;
24import android.content.ContentValues;
25import android.content.Context;
26import android.content.Intent;
27import android.content.UriMatcher;
28import android.content.res.Resources;
29import android.content.res.TypedArray;
30import android.database.AbstractCursor;
31import android.database.ContentObserver;
32import android.database.Cursor;
33import android.database.DatabaseUtils;
34import android.database.MatrixCursor;
35import android.database.sqlite.SQLiteDatabase;
36import android.database.sqlite.SQLiteOpenHelper;
37import android.database.sqlite.SQLiteQueryBuilder;
38import android.net.Uri;
39import android.provider.BaseColumns;
40import android.provider.Browser;
41import android.provider.Browser.BookmarkColumns;
42import android.provider.BrowserContract;
43import android.provider.BrowserContract.Accounts;
44import android.provider.BrowserContract.Bookmarks;
45import android.provider.BrowserContract.ChromeSyncColumns;
46import android.provider.BrowserContract.Combined;
47import android.provider.BrowserContract.History;
48import android.provider.BrowserContract.Images;
49import android.provider.BrowserContract.Searches;
50import android.provider.BrowserContract.Settings;
51import android.provider.BrowserContract.SyncState;
52import android.provider.ContactsContract.RawContacts;
53import android.provider.SyncStateContract;
54import android.text.TextUtils;
55
56import com.android.browser.R;
57import com.android.browser.UrlUtils;
58import com.android.browser.widget.BookmarkThumbnailWidgetProvider;
59import com.android.common.content.SyncStateContentProviderHelper;
60import com.google.common.annotations.VisibleForTesting;
61
62import java.io.ByteArrayOutputStream;
63import java.io.File;
64import java.io.IOException;
65import java.io.InputStream;
66import java.util.Arrays;
67import java.util.HashMap;
68
69public class BrowserProvider2 extends SQLiteContentProvider {
70
71    public static final String PARAM_GROUP_BY = "groupBy";
72
73    public static final String LEGACY_AUTHORITY = "browser";
74    static final Uri LEGACY_AUTHORITY_URI = new Uri.Builder()
75            .authority(LEGACY_AUTHORITY).scheme("content").build();
76
77    public static interface Thumbnails {
78        public static final Uri CONTENT_URI = Uri.withAppendedPath(
79                BrowserContract.AUTHORITY_URI, "thumbnails");
80        public static final String _ID = "_id";
81        public static final String THUMBNAIL = "thumbnail";
82    }
83
84    static final String TABLE_BOOKMARKS = "bookmarks";
85    static final String TABLE_HISTORY = "history";
86    static final String TABLE_IMAGES = "images";
87    static final String TABLE_SEARCHES = "searches";
88    static final String TABLE_SYNC_STATE = "syncstate";
89    static final String TABLE_SETTINGS = "settings";
90    static final String TABLE_SNAPSHOTS = "snapshots";
91    static final String TABLE_THUMBNAILS = "thumbnails";
92
93    static final String TABLE_BOOKMARKS_JOIN_IMAGES = "bookmarks LEFT OUTER JOIN images " +
94            "ON bookmarks.url = images." + Images.URL;
95    static final String TABLE_HISTORY_JOIN_IMAGES = "history LEFT OUTER JOIN images " +
96            "ON history.url = images." + Images.URL;
97
98    static final String VIEW_ACCOUNTS = "v_accounts";
99    static final String VIEW_SNAPSHOTS_COMBINED = "v_snapshots_combined";
100
101    static final String FORMAT_COMBINED_JOIN_SUBQUERY_JOIN_IMAGES =
102            "history LEFT OUTER JOIN (%s) bookmarks " +
103            "ON history.url = bookmarks.url LEFT OUTER JOIN images " +
104            "ON history.url = images.url_key";
105
106    static final String DEFAULT_SORT_HISTORY = History.DATE_LAST_VISITED + " DESC";
107
108    private static final String[] SUGGEST_PROJECTION = new String[] {
109            Bookmarks._ID,
110            Bookmarks.URL,
111            Bookmarks.TITLE};
112
113    private static final String SUGGEST_SELECTION =
114            "url LIKE ? OR url LIKE ? OR url LIKE ? OR url LIKE ?"
115            + " OR title LIKE ?";
116
117    private static final String IMAGE_PRUNE =
118            "url_key NOT IN (SELECT url FROM bookmarks " +
119            "WHERE url IS NOT NULL AND deleted == 0) AND url_key NOT IN " +
120            "(SELECT url FROM history WHERE url IS NOT NULL)";
121
122    static final int THUMBNAILS = 10;
123    static final int THUMBNAILS_ID = 11;
124
125    static final int BOOKMARKS = 1000;
126    static final int BOOKMARKS_ID = 1001;
127    static final int BOOKMARKS_FOLDER = 1002;
128    static final int BOOKMARKS_FOLDER_ID = 1003;
129    static final int BOOKMARKS_SUGGESTIONS = 1004;
130    static final int BOOKMARKS_DEFAULT_FOLDER_ID = 1005;
131
132    static final int HISTORY = 2000;
133    static final int HISTORY_ID = 2001;
134
135    static final int SEARCHES = 3000;
136    static final int SEARCHES_ID = 3001;
137
138    static final int SYNCSTATE = 4000;
139    static final int SYNCSTATE_ID = 4001;
140
141    static final int IMAGES = 5000;
142
143    static final int COMBINED = 6000;
144    static final int COMBINED_ID = 6001;
145
146    static final int ACCOUNTS = 7000;
147
148    static final int SETTINGS = 8000;
149
150    static final int LEGACY = 9000;
151    static final int LEGACY_ID = 9001;
152
153    public static final long FIXED_ID_ROOT = 1;
154
155    // Default sort order for unsync'd bookmarks
156    static final String DEFAULT_BOOKMARKS_SORT_ORDER =
157            Bookmarks.IS_FOLDER + " DESC, position ASC, _id ASC";
158
159    // Default sort order for sync'd bookmarks
160    static final String DEFAULT_BOOKMARKS_SORT_ORDER_SYNC = "position ASC, _id ASC";
161
162    static final UriMatcher URI_MATCHER = new UriMatcher(UriMatcher.NO_MATCH);
163
164    static final HashMap<String, String> ACCOUNTS_PROJECTION_MAP = new HashMap<String, String>();
165    static final HashMap<String, String> BOOKMARKS_PROJECTION_MAP = new HashMap<String, String>();
166    static final HashMap<String, String> OTHER_BOOKMARKS_PROJECTION_MAP =
167            new HashMap<String, String>();
168    static final HashMap<String, String> HISTORY_PROJECTION_MAP = new HashMap<String, String>();
169    static final HashMap<String, String> SYNC_STATE_PROJECTION_MAP = new HashMap<String, String>();
170    static final HashMap<String, String> IMAGES_PROJECTION_MAP = new HashMap<String, String>();
171    static final HashMap<String, String> COMBINED_HISTORY_PROJECTION_MAP = new HashMap<String, String>();
172    static final HashMap<String, String> COMBINED_BOOKMARK_PROJECTION_MAP = new HashMap<String, String>();
173    static final HashMap<String, String> SEARCHES_PROJECTION_MAP = new HashMap<String, String>();
174    static final HashMap<String, String> SETTINGS_PROJECTION_MAP = new HashMap<String, String>();
175
176    static {
177        final UriMatcher matcher = URI_MATCHER;
178        final String authority = BrowserContract.AUTHORITY;
179        matcher.addURI(authority, "accounts", ACCOUNTS);
180        matcher.addURI(authority, "bookmarks", BOOKMARKS);
181        matcher.addURI(authority, "bookmarks/#", BOOKMARKS_ID);
182        matcher.addURI(authority, "bookmarks/folder", BOOKMARKS_FOLDER);
183        matcher.addURI(authority, "bookmarks/folder/#", BOOKMARKS_FOLDER_ID);
184        matcher.addURI(authority, "bookmarks/folder/id", BOOKMARKS_DEFAULT_FOLDER_ID);
185        matcher.addURI(authority,
186                SearchManager.SUGGEST_URI_PATH_QUERY,
187                BOOKMARKS_SUGGESTIONS);
188        matcher.addURI(authority,
189                "bookmarks/" + SearchManager.SUGGEST_URI_PATH_QUERY,
190                BOOKMARKS_SUGGESTIONS);
191        matcher.addURI(authority, "history", HISTORY);
192        matcher.addURI(authority, "history/#", HISTORY_ID);
193        matcher.addURI(authority, "searches", SEARCHES);
194        matcher.addURI(authority, "searches/#", SEARCHES_ID);
195        matcher.addURI(authority, "syncstate", SYNCSTATE);
196        matcher.addURI(authority, "syncstate/#", SYNCSTATE_ID);
197        matcher.addURI(authority, "images", IMAGES);
198        matcher.addURI(authority, "combined", COMBINED);
199        matcher.addURI(authority, "combined/#", COMBINED_ID);
200        matcher.addURI(authority, "settings", SETTINGS);
201        matcher.addURI(authority, "thumbnails", THUMBNAILS);
202        matcher.addURI(authority, "thumbnails/#", THUMBNAILS_ID);
203
204        // Legacy
205        matcher.addURI(LEGACY_AUTHORITY, "searches", SEARCHES);
206        matcher.addURI(LEGACY_AUTHORITY, "searches/#", SEARCHES_ID);
207        matcher.addURI(LEGACY_AUTHORITY, "bookmarks", LEGACY);
208        matcher.addURI(LEGACY_AUTHORITY, "bookmarks/#", LEGACY_ID);
209        matcher.addURI(LEGACY_AUTHORITY,
210                SearchManager.SUGGEST_URI_PATH_QUERY,
211                BOOKMARKS_SUGGESTIONS);
212        matcher.addURI(LEGACY_AUTHORITY,
213                "bookmarks/" + SearchManager.SUGGEST_URI_PATH_QUERY,
214                BOOKMARKS_SUGGESTIONS);
215
216        // Projection maps
217        HashMap<String, String> map;
218
219        // Accounts
220        map = ACCOUNTS_PROJECTION_MAP;
221        map.put(Accounts.ACCOUNT_TYPE, Accounts.ACCOUNT_TYPE);
222        map.put(Accounts.ACCOUNT_NAME, Accounts.ACCOUNT_NAME);
223        map.put(Accounts.ROOT_ID, Accounts.ROOT_ID);
224
225        // Bookmarks
226        map = BOOKMARKS_PROJECTION_MAP;
227        map.put(Bookmarks._ID, qualifyColumn(TABLE_BOOKMARKS, Bookmarks._ID));
228        map.put(Bookmarks.TITLE, Bookmarks.TITLE);
229        map.put(Bookmarks.URL, Bookmarks.URL);
230        map.put(Bookmarks.FAVICON, Bookmarks.FAVICON);
231        map.put(Bookmarks.THUMBNAIL, Bookmarks.THUMBNAIL);
232        map.put(Bookmarks.TOUCH_ICON, Bookmarks.TOUCH_ICON);
233        map.put(Bookmarks.IS_FOLDER, Bookmarks.IS_FOLDER);
234        map.put(Bookmarks.PARENT, Bookmarks.PARENT);
235        map.put(Bookmarks.POSITION, Bookmarks.POSITION);
236        map.put(Bookmarks.INSERT_AFTER, Bookmarks.INSERT_AFTER);
237        map.put(Bookmarks.IS_DELETED, Bookmarks.IS_DELETED);
238        map.put(Bookmarks.ACCOUNT_NAME, Bookmarks.ACCOUNT_NAME);
239        map.put(Bookmarks.ACCOUNT_TYPE, Bookmarks.ACCOUNT_TYPE);
240        map.put(Bookmarks.SOURCE_ID, Bookmarks.SOURCE_ID);
241        map.put(Bookmarks.VERSION, Bookmarks.VERSION);
242        map.put(Bookmarks.DATE_CREATED, Bookmarks.DATE_CREATED);
243        map.put(Bookmarks.DATE_MODIFIED, Bookmarks.DATE_MODIFIED);
244        map.put(Bookmarks.DIRTY, Bookmarks.DIRTY);
245        map.put(Bookmarks.SYNC1, Bookmarks.SYNC1);
246        map.put(Bookmarks.SYNC2, Bookmarks.SYNC2);
247        map.put(Bookmarks.SYNC3, Bookmarks.SYNC3);
248        map.put(Bookmarks.SYNC4, Bookmarks.SYNC4);
249        map.put(Bookmarks.SYNC5, Bookmarks.SYNC5);
250        map.put(Bookmarks.PARENT_SOURCE_ID, "(SELECT " + Bookmarks.SOURCE_ID +
251                " FROM " + TABLE_BOOKMARKS + " A WHERE " +
252                "A." + Bookmarks._ID + "=" + TABLE_BOOKMARKS + "." + Bookmarks.PARENT +
253                ") AS " + Bookmarks.PARENT_SOURCE_ID);
254        map.put(Bookmarks.INSERT_AFTER_SOURCE_ID, "(SELECT " + Bookmarks.SOURCE_ID +
255                " FROM " + TABLE_BOOKMARKS + " A WHERE " +
256                "A." + Bookmarks._ID + "=" + TABLE_BOOKMARKS + "." + Bookmarks.INSERT_AFTER +
257                ") AS " + Bookmarks.INSERT_AFTER_SOURCE_ID);
258
259        // Other bookmarks
260        OTHER_BOOKMARKS_PROJECTION_MAP.putAll(BOOKMARKS_PROJECTION_MAP);
261        OTHER_BOOKMARKS_PROJECTION_MAP.put(Bookmarks.POSITION,
262                Long.toString(Long.MAX_VALUE) + " AS " + Bookmarks.POSITION);
263
264        // History
265        map = HISTORY_PROJECTION_MAP;
266        map.put(History._ID, qualifyColumn(TABLE_HISTORY, History._ID));
267        map.put(History.TITLE, History.TITLE);
268        map.put(History.URL, History.URL);
269        map.put(History.FAVICON, History.FAVICON);
270        map.put(History.THUMBNAIL, History.THUMBNAIL);
271        map.put(History.TOUCH_ICON, History.TOUCH_ICON);
272        map.put(History.DATE_CREATED, History.DATE_CREATED);
273        map.put(History.DATE_LAST_VISITED, History.DATE_LAST_VISITED);
274        map.put(History.VISITS, History.VISITS);
275        map.put(History.USER_ENTERED, History.USER_ENTERED);
276
277        // Sync state
278        map = SYNC_STATE_PROJECTION_MAP;
279        map.put(SyncState._ID, SyncState._ID);
280        map.put(SyncState.ACCOUNT_NAME, SyncState.ACCOUNT_NAME);
281        map.put(SyncState.ACCOUNT_TYPE, SyncState.ACCOUNT_TYPE);
282        map.put(SyncState.DATA, SyncState.DATA);
283
284        // Images
285        map = IMAGES_PROJECTION_MAP;
286        map.put(Images.URL, Images.URL);
287        map.put(Images.FAVICON, Images.FAVICON);
288        map.put(Images.THUMBNAIL, Images.THUMBNAIL);
289        map.put(Images.TOUCH_ICON, Images.TOUCH_ICON);
290
291        // Combined history half
292        map = COMBINED_HISTORY_PROJECTION_MAP;
293        map.put(Combined._ID, bookmarkOrHistoryColumn(Combined._ID));
294        map.put(Combined.TITLE, bookmarkOrHistoryColumn(Combined.TITLE));
295        map.put(Combined.URL, qualifyColumn(TABLE_HISTORY, Combined.URL));
296        map.put(Combined.DATE_CREATED, qualifyColumn(TABLE_HISTORY, Combined.DATE_CREATED));
297        map.put(Combined.DATE_LAST_VISITED, Combined.DATE_LAST_VISITED);
298        map.put(Combined.IS_BOOKMARK, "CASE WHEN " +
299                TABLE_BOOKMARKS + "." + Bookmarks._ID +
300                " IS NOT NULL THEN 1 ELSE 0 END AS " + Combined.IS_BOOKMARK);
301        map.put(Combined.VISITS, Combined.VISITS);
302        map.put(Combined.FAVICON, Combined.FAVICON);
303        map.put(Combined.THUMBNAIL, Combined.THUMBNAIL);
304        map.put(Combined.TOUCH_ICON, Combined.TOUCH_ICON);
305        map.put(Combined.USER_ENTERED, "NULL AS " + Combined.USER_ENTERED);
306
307        // Combined bookmark half
308        map = COMBINED_BOOKMARK_PROJECTION_MAP;
309        map.put(Combined._ID, Combined._ID);
310        map.put(Combined.TITLE, Combined.TITLE);
311        map.put(Combined.URL, Combined.URL);
312        map.put(Combined.DATE_CREATED, Combined.DATE_CREATED);
313        map.put(Combined.DATE_LAST_VISITED, "NULL AS " + Combined.DATE_LAST_VISITED);
314        map.put(Combined.IS_BOOKMARK, "1 AS " + Combined.IS_BOOKMARK);
315        map.put(Combined.VISITS, "0 AS " + Combined.VISITS);
316        map.put(Combined.FAVICON, Combined.FAVICON);
317        map.put(Combined.THUMBNAIL, Combined.THUMBNAIL);
318        map.put(Combined.TOUCH_ICON, Combined.TOUCH_ICON);
319        map.put(Combined.USER_ENTERED, "NULL AS " + Combined.USER_ENTERED);
320
321        // Searches
322        map = SEARCHES_PROJECTION_MAP;
323        map.put(Searches._ID, Searches._ID);
324        map.put(Searches.SEARCH, Searches.SEARCH);
325        map.put(Searches.DATE, Searches.DATE);
326
327        // Settings
328        map = SETTINGS_PROJECTION_MAP;
329        map.put(Settings.KEY, Settings.KEY);
330        map.put(Settings.VALUE, Settings.VALUE);
331    }
332
333    static final String bookmarkOrHistoryColumn(String column) {
334        return "CASE WHEN bookmarks." + column + " IS NOT NULL THEN " +
335                "bookmarks." + column + " ELSE history." + column + " END AS " + column;
336    }
337
338    static final String qualifyColumn(String table, String column) {
339        return table + "." + column + " AS " + column;
340    }
341
342    DatabaseHelper mOpenHelper;
343    SyncStateContentProviderHelper mSyncHelper = new SyncStateContentProviderHelper();
344    // This is so provider tests can intercept widget updating
345    ContentObserver mWidgetObserver = null;
346
347    final class DatabaseHelper extends SQLiteOpenHelper {
348        static final String DATABASE_NAME = "browser2.db";
349        static final int DATABASE_VERSION = 31;
350        public DatabaseHelper(Context context) {
351            super(context, DATABASE_NAME, null, DATABASE_VERSION);
352        }
353
354        @Override
355        public void onCreate(SQLiteDatabase db) {
356            db.execSQL("CREATE TABLE " + TABLE_BOOKMARKS + "(" +
357                    Bookmarks._ID + " INTEGER PRIMARY KEY AUTOINCREMENT," +
358                    Bookmarks.TITLE + " TEXT," +
359                    Bookmarks.URL + " TEXT," +
360                    Bookmarks.IS_FOLDER + " INTEGER NOT NULL DEFAULT 0," +
361                    Bookmarks.PARENT + " INTEGER," +
362                    Bookmarks.POSITION + " INTEGER NOT NULL," +
363                    Bookmarks.INSERT_AFTER + " INTEGER," +
364                    Bookmarks.IS_DELETED + " INTEGER NOT NULL DEFAULT 0," +
365                    Bookmarks.ACCOUNT_NAME + " TEXT," +
366                    Bookmarks.ACCOUNT_TYPE + " TEXT," +
367                    Bookmarks.SOURCE_ID + " TEXT," +
368                    Bookmarks.VERSION + " INTEGER NOT NULL DEFAULT 1," +
369                    Bookmarks.DATE_CREATED + " INTEGER," +
370                    Bookmarks.DATE_MODIFIED + " INTEGER," +
371                    Bookmarks.DIRTY + " INTEGER NOT NULL DEFAULT 0," +
372                    Bookmarks.SYNC1 + " TEXT," +
373                    Bookmarks.SYNC2 + " TEXT," +
374                    Bookmarks.SYNC3 + " TEXT," +
375                    Bookmarks.SYNC4 + " TEXT," +
376                    Bookmarks.SYNC5 + " TEXT" +
377                    ");");
378
379            // TODO indices
380
381            db.execSQL("CREATE TABLE " + TABLE_HISTORY + "(" +
382                    History._ID + " INTEGER PRIMARY KEY AUTOINCREMENT," +
383                    History.TITLE + " TEXT," +
384                    History.URL + " TEXT NOT NULL," +
385                    History.DATE_CREATED + " INTEGER," +
386                    History.DATE_LAST_VISITED + " INTEGER," +
387                    History.VISITS + " INTEGER NOT NULL DEFAULT 0," +
388                    History.USER_ENTERED + " INTEGER" +
389                    ");");
390
391            db.execSQL("CREATE TABLE " + TABLE_IMAGES + " (" +
392                    Images.URL + " TEXT UNIQUE NOT NULL," +
393                    Images.FAVICON + " BLOB," +
394                    Images.THUMBNAIL + " BLOB," +
395                    Images.TOUCH_ICON + " BLOB" +
396                    ");");
397            db.execSQL("CREATE INDEX imagesUrlIndex ON " + TABLE_IMAGES +
398                    "(" + Images.URL + ")");
399
400            db.execSQL("CREATE TABLE " + TABLE_SEARCHES + " (" +
401                    Searches._ID + " INTEGER PRIMARY KEY AUTOINCREMENT," +
402                    Searches.SEARCH + " TEXT," +
403                    Searches.DATE + " LONG" +
404                    ");");
405
406            db.execSQL("CREATE TABLE " + TABLE_SETTINGS + " (" +
407                    Settings.KEY + " TEXT PRIMARY KEY," +
408                    Settings.VALUE + " TEXT NOT NULL" +
409                    ");");
410
411            createAccountsView(db);
412            createThumbnails(db);
413
414            mSyncHelper.createDatabase(db);
415
416            if (!importFromBrowserProvider(db)) {
417                createDefaultBookmarks(db);
418            }
419
420            enableSync(db);
421        }
422
423        void createThumbnails(SQLiteDatabase db) {
424            db.execSQL("CREATE TABLE IF NOT EXISTS " + TABLE_THUMBNAILS + " (" +
425                    Thumbnails._ID + " INTEGER PRIMARY KEY," +
426                    Thumbnails.THUMBNAIL + " BLOB NOT NULL" +
427                    ");");
428        }
429
430        void enableSync(SQLiteDatabase db) {
431            ContentValues values = new ContentValues();
432            values.put(Settings.KEY, Settings.KEY_SYNC_ENABLED);
433            values.put(Settings.VALUE, 1);
434            insertSettingsInTransaction(db, values);
435            // Enable bookmark sync on all accounts
436            AccountManager am = (AccountManager) getContext().getSystemService(
437                    Context.ACCOUNT_SERVICE);
438            if (am == null) {
439                return;
440            }
441            Account[] accounts = am.getAccountsByType("com.google");
442            if (accounts == null || accounts.length == 0) {
443                return;
444            }
445            for (Account account : accounts) {
446                if (ContentResolver.getIsSyncable(
447                        account, BrowserContract.AUTHORITY) == 0) {
448                    // Account wasn't syncable, enable it
449                    ContentResolver.setIsSyncable(
450                            account, BrowserContract.AUTHORITY, 1);
451                    ContentResolver.setSyncAutomatically(
452                            account, BrowserContract.AUTHORITY, true);
453                }
454            }
455        }
456
457        boolean importFromBrowserProvider(SQLiteDatabase db) {
458            Context context = getContext();
459            File oldDbFile = context.getDatabasePath(BrowserProvider.sDatabaseName);
460            if (oldDbFile.exists()) {
461                BrowserProvider.DatabaseHelper helper =
462                        new BrowserProvider.DatabaseHelper(context);
463                SQLiteDatabase oldDb = helper.getWritableDatabase();
464                Cursor c = null;
465                try {
466                    String table = BrowserProvider.TABLE_NAMES[BrowserProvider.URI_MATCH_BOOKMARKS];
467                    // Import bookmarks
468                    c = oldDb.query(table,
469                            new String[] {
470                            BookmarkColumns.URL, // 0
471                            BookmarkColumns.TITLE, // 1
472                            BookmarkColumns.FAVICON, // 2
473                            BookmarkColumns.TOUCH_ICON, // 3
474                            BookmarkColumns.CREATED, // 4
475                            }, BookmarkColumns.BOOKMARK + "!=0", null,
476                            null, null, null);
477                    if (c != null) {
478                        while (c.moveToNext()) {
479                            ContentValues values = new ContentValues();
480                            values.put(Bookmarks.URL, c.getString(0));
481                            values.put(Bookmarks.TITLE, c.getString(1));
482                            values.put(Bookmarks.DATE_CREATED, c.getInt(4));
483                            values.put(Bookmarks.POSITION, 0);
484                            values.put(Bookmarks.PARENT, FIXED_ID_ROOT);
485                            ContentValues imageValues = new ContentValues();
486                            imageValues.put(Images.URL, c.getString(0));
487                            imageValues.put(Images.FAVICON, c.getBlob(2));
488                            imageValues.put(Images.TOUCH_ICON, c.getBlob(3));
489                            db.insertOrThrow(TABLE_IMAGES, Images.THUMBNAIL, imageValues);
490                            db.insertOrThrow(TABLE_BOOKMARKS, Bookmarks.DIRTY, values);
491                        }
492                        c.close();
493                    }
494                    // Import history
495                    c = oldDb.query(table,
496                            new String[] {
497                            BookmarkColumns.URL, // 0
498                            BookmarkColumns.TITLE, // 1
499                            BookmarkColumns.VISITS, // 2
500                            BookmarkColumns.DATE, // 3
501                            BookmarkColumns.CREATED, // 4
502                            }, BookmarkColumns.VISITS + " > 0 OR "
503                            + BookmarkColumns.BOOKMARK + " = 0",
504                            null, null, null, null);
505                    if (c != null) {
506                        while (c.moveToNext()) {
507                            ContentValues values = new ContentValues();
508                            values.put(History.URL, c.getString(0));
509                            values.put(History.TITLE, c.getString(1));
510                            values.put(History.VISITS, c.getInt(2));
511                            values.put(History.DATE_LAST_VISITED, c.getLong(3));
512                            values.put(History.DATE_CREATED, c.getLong(4));
513                            db.insertOrThrow(TABLE_HISTORY, History.FAVICON, values);
514                        }
515                        c.close();
516                    }
517                    // Wipe the old DB, in case the delete fails.
518                    oldDb.delete(table, null, null);
519                } finally {
520                    if (c != null) c.close();
521                    oldDb.close();
522                    helper.close();
523                }
524                if (!oldDbFile.delete()) {
525                    oldDbFile.deleteOnExit();
526                }
527                return true;
528            }
529            return false;
530        }
531
532        void createAccountsView(SQLiteDatabase db) {
533            db.execSQL("CREATE VIEW IF NOT EXISTS v_accounts AS "
534                    + "SELECT NULL AS " + Accounts.ACCOUNT_NAME
535                    + ", NULL AS " + Accounts.ACCOUNT_TYPE
536                    + ", " + FIXED_ID_ROOT + " AS " + Accounts.ROOT_ID
537                    + " UNION ALL SELECT " + Accounts.ACCOUNT_NAME
538                    + ", " + Accounts.ACCOUNT_TYPE + ", "
539                    + Bookmarks._ID + " AS " + Accounts.ROOT_ID
540                    + " FROM " + TABLE_BOOKMARKS + " WHERE "
541                    + ChromeSyncColumns.SERVER_UNIQUE + " = \""
542                    + ChromeSyncColumns.FOLDER_NAME_BOOKMARKS_BAR + "\" AND "
543                    + Bookmarks.IS_DELETED + " = 0");
544        }
545
546        @Override
547        public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
548            if (oldVersion < 31) {
549                createThumbnails(db);
550            }
551            if (oldVersion < 30) {
552                db.execSQL("DROP VIEW IF EXISTS " + VIEW_SNAPSHOTS_COMBINED);
553                db.execSQL("DROP TABLE IF EXISTS " + TABLE_SNAPSHOTS);
554            }
555            if (oldVersion < 28) {
556                enableSync(db);
557            }
558            if (oldVersion < 27) {
559                createAccountsView(db);
560            }
561            if (oldVersion < 26) {
562                db.execSQL("DROP VIEW IF EXISTS combined");
563            }
564            if (oldVersion < 25) {
565                db.execSQL("DROP TABLE IF EXISTS " + TABLE_BOOKMARKS);
566                db.execSQL("DROP TABLE IF EXISTS " + TABLE_HISTORY);
567                db.execSQL("DROP TABLE IF EXISTS " + TABLE_SEARCHES);
568                db.execSQL("DROP TABLE IF EXISTS " + TABLE_IMAGES);
569                db.execSQL("DROP TABLE IF EXISTS " + TABLE_SETTINGS);
570                mSyncHelper.onAccountsChanged(db, new Account[] {}); // remove all sync info
571                onCreate(db);
572            }
573        }
574
575        public void onOpen(SQLiteDatabase db) {
576            db.enableWriteAheadLogging();
577            mSyncHelper.onDatabaseOpened(db);
578        }
579
580        private void createDefaultBookmarks(SQLiteDatabase db) {
581            ContentValues values = new ContentValues();
582            // TODO figure out how to deal with localization for the defaults
583
584            // Bookmarks folder
585            values.put(Bookmarks._ID, FIXED_ID_ROOT);
586            values.put(ChromeSyncColumns.SERVER_UNIQUE, ChromeSyncColumns.FOLDER_NAME_BOOKMARKS);
587            values.put(Bookmarks.TITLE, "Bookmarks");
588            values.putNull(Bookmarks.PARENT);
589            values.put(Bookmarks.POSITION, 0);
590            values.put(Bookmarks.IS_FOLDER, true);
591            values.put(Bookmarks.DIRTY, true);
592            db.insertOrThrow(TABLE_BOOKMARKS, null, values);
593
594            addDefaultBookmarks(db, FIXED_ID_ROOT);
595        }
596
597        private void addDefaultBookmarks(SQLiteDatabase db, long parentId) {
598            Resources res = getContext().getResources();
599            final CharSequence[] bookmarks = res.getTextArray(
600                    R.array.bookmarks);
601            int size = bookmarks.length;
602            TypedArray preloads = res.obtainTypedArray(R.array.bookmark_preloads);
603            try {
604                String parent = Long.toString(parentId);
605                String now = Long.toString(System.currentTimeMillis());
606                for (int i = 0; i < size; i = i + 2) {
607                    CharSequence bookmarkDestination = replaceSystemPropertyInString(getContext(),
608                            bookmarks[i + 1]);
609                    db.execSQL("INSERT INTO bookmarks (" +
610                            Bookmarks.TITLE + ", " +
611                            Bookmarks.URL + ", " +
612                            Bookmarks.IS_FOLDER + "," +
613                            Bookmarks.PARENT + "," +
614                            Bookmarks.POSITION + "," +
615                            Bookmarks.DATE_CREATED +
616                        ") VALUES (" +
617                            "'" + bookmarks[i] + "', " +
618                            "'" + bookmarkDestination + "', " +
619                            "0," +
620                            parent + "," +
621                            Integer.toString(i) + "," +
622                            now +
623                            ");");
624
625                    int faviconId = preloads.getResourceId(i, 0);
626                    int thumbId = preloads.getResourceId(i + 1, 0);
627                    byte[] thumb = null, favicon = null;
628                    try {
629                        thumb = readRaw(res, thumbId);
630                    } catch (IOException e) {
631                    }
632                    try {
633                        favicon = readRaw(res, faviconId);
634                    } catch (IOException e) {
635                    }
636                    if (thumb != null || favicon != null) {
637                        ContentValues imageValues = new ContentValues();
638                        imageValues.put(Images.URL, bookmarkDestination.toString());
639                        if (favicon != null) {
640                            imageValues.put(Images.FAVICON, favicon);
641                        }
642                        if (thumb != null) {
643                            imageValues.put(Images.THUMBNAIL, thumb);
644                        }
645                        db.insert(TABLE_IMAGES, Images.FAVICON, imageValues);
646                    }
647                }
648            } catch (ArrayIndexOutOfBoundsException e) {
649            }
650        }
651
652        private byte[] readRaw(Resources res, int id) throws IOException {
653            if (id == 0) {
654                return null;
655            }
656            InputStream is = res.openRawResource(id);
657            try {
658                ByteArrayOutputStream bos = new ByteArrayOutputStream();
659                byte[] buf = new byte[4096];
660                int read;
661                while ((read = is.read(buf)) > 0) {
662                    bos.write(buf, 0, read);
663                }
664                bos.flush();
665                return bos.toByteArray();
666            } finally {
667                is.close();
668            }
669        }
670
671        // XXX: This is a major hack to remove our dependency on gsf constants and
672        // its content provider. http://b/issue?id=2425179
673        private String getClientId(ContentResolver cr) {
674            String ret = "android-google";
675            Cursor c = null;
676            try {
677                c = cr.query(Uri.parse("content://com.google.settings/partner"),
678                        new String[] { "value" }, "name='client_id'", null, null);
679                if (c != null && c.moveToNext()) {
680                    ret = c.getString(0);
681                }
682            } catch (RuntimeException ex) {
683                // fall through to return the default
684            } finally {
685                if (c != null) {
686                    c.close();
687                }
688            }
689            return ret;
690        }
691
692        private CharSequence replaceSystemPropertyInString(Context context, CharSequence srcString) {
693            StringBuffer sb = new StringBuffer();
694            int lastCharLoc = 0;
695
696            final String client_id = getClientId(context.getContentResolver());
697
698            for (int i = 0; i < srcString.length(); ++i) {
699                char c = srcString.charAt(i);
700                if (c == '{') {
701                    sb.append(srcString.subSequence(lastCharLoc, i));
702                    lastCharLoc = i;
703              inner:
704                    for (int j = i; j < srcString.length(); ++j) {
705                        char k = srcString.charAt(j);
706                        if (k == '}') {
707                            String propertyKeyValue = srcString.subSequence(i + 1, j).toString();
708                            if (propertyKeyValue.equals("CLIENT_ID")) {
709                                sb.append(client_id);
710                            } else {
711                                sb.append("unknown");
712                            }
713                            lastCharLoc = j + 1;
714                            i = j;
715                            break inner;
716                        }
717                    }
718                }
719            }
720            if (srcString.length() - lastCharLoc > 0) {
721                // Put on the tail, if there is one
722                sb.append(srcString.subSequence(lastCharLoc, srcString.length()));
723            }
724            return sb;
725        }
726    }
727
728    @Override
729    public SQLiteOpenHelper getDatabaseHelper(Context context) {
730        synchronized (this) {
731            if (mOpenHelper == null) {
732                mOpenHelper = new DatabaseHelper(context);
733            }
734            return mOpenHelper;
735        }
736    }
737
738    @Override
739    public boolean isCallerSyncAdapter(Uri uri) {
740        return uri.getBooleanQueryParameter(BrowserContract.CALLER_IS_SYNCADAPTER, false);
741    }
742
743    @VisibleForTesting
744    public void setWidgetObserver(ContentObserver obs) {
745        mWidgetObserver = obs;
746    }
747
748    void refreshWidgets() {
749        if (mWidgetObserver == null) {
750            BookmarkThumbnailWidgetProvider.refreshWidgets(getContext());
751        } else {
752            mWidgetObserver.dispatchChange(false);
753        }
754    }
755
756    @Override
757    public String getType(Uri uri) {
758        final int match = URI_MATCHER.match(uri);
759        switch (match) {
760            case LEGACY:
761            case BOOKMARKS:
762                return Bookmarks.CONTENT_TYPE;
763            case LEGACY_ID:
764            case BOOKMARKS_ID:
765                return Bookmarks.CONTENT_ITEM_TYPE;
766            case HISTORY:
767                return History.CONTENT_TYPE;
768            case HISTORY_ID:
769                return History.CONTENT_ITEM_TYPE;
770            case SEARCHES:
771                return Searches.CONTENT_TYPE;
772            case SEARCHES_ID:
773                return Searches.CONTENT_ITEM_TYPE;
774        }
775        return null;
776    }
777
778    boolean isNullAccount(String account) {
779        if (account == null) return true;
780        account = account.trim();
781        return account.length() == 0 || account.equals("null");
782    }
783
784    Object[] getSelectionWithAccounts(Uri uri, String selection, String[] selectionArgs) {
785        // Look for account info
786        String accountType = uri.getQueryParameter(Bookmarks.PARAM_ACCOUNT_TYPE);
787        String accountName = uri.getQueryParameter(Bookmarks.PARAM_ACCOUNT_NAME);
788        boolean hasAccounts = false;
789        if (accountType != null && accountName != null) {
790            if (!isNullAccount(accountType) && !isNullAccount(accountName)) {
791                selection = DatabaseUtils.concatenateWhere(selection,
792                        Bookmarks.ACCOUNT_TYPE + "=? AND " + Bookmarks.ACCOUNT_NAME + "=? ");
793                selectionArgs = DatabaseUtils.appendSelectionArgs(selectionArgs,
794                        new String[] { accountType, accountName });
795                hasAccounts = true;
796            } else {
797                selection = DatabaseUtils.concatenateWhere(selection,
798                        Bookmarks.ACCOUNT_NAME + " IS NULL AND " +
799                        Bookmarks.ACCOUNT_TYPE + " IS NULL");
800            }
801        }
802        return new Object[] { selection, selectionArgs, hasAccounts };
803    }
804
805    @Override
806    public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs,
807            String sortOrder) {
808        SQLiteDatabase db = mOpenHelper.getReadableDatabase();
809        final int match = URI_MATCHER.match(uri);
810        SQLiteQueryBuilder qb = new SQLiteQueryBuilder();
811        String limit = uri.getQueryParameter(BrowserContract.PARAM_LIMIT);
812        String groupBy = uri.getQueryParameter(PARAM_GROUP_BY);
813        switch (match) {
814            case ACCOUNTS: {
815                qb.setTables(VIEW_ACCOUNTS);
816                qb.setProjectionMap(ACCOUNTS_PROJECTION_MAP);
817                break;
818            }
819
820            case BOOKMARKS_FOLDER_ID:
821            case BOOKMARKS_ID:
822            case BOOKMARKS: {
823                // Only show deleted bookmarks if requested to do so
824                if (!uri.getBooleanQueryParameter(Bookmarks.QUERY_PARAMETER_SHOW_DELETED, false)) {
825                    selection = DatabaseUtils.concatenateWhere(
826                            Bookmarks.IS_DELETED + "=0", selection);
827                }
828
829                if (match == BOOKMARKS_ID) {
830                    // Tack on the ID of the specific bookmark requested
831                    selection = DatabaseUtils.concatenateWhere(selection,
832                            TABLE_BOOKMARKS + "." + Bookmarks._ID + "=?");
833                    selectionArgs = DatabaseUtils.appendSelectionArgs(selectionArgs,
834                            new String[] { Long.toString(ContentUris.parseId(uri)) });
835                } else if (match == BOOKMARKS_FOLDER_ID) {
836                    // Tack on the ID of the specific folder requested
837                    selection = DatabaseUtils.concatenateWhere(selection,
838                            TABLE_BOOKMARKS + "." + Bookmarks.PARENT + "=?");
839                    selectionArgs = DatabaseUtils.appendSelectionArgs(selectionArgs,
840                            new String[] { Long.toString(ContentUris.parseId(uri)) });
841                }
842
843                Object[] withAccount = getSelectionWithAccounts(uri, selection, selectionArgs);
844                selection = (String) withAccount[0];
845                selectionArgs = (String[]) withAccount[1];
846                boolean hasAccounts = (Boolean) withAccount[2];
847
848                // Set a default sort order if one isn't specified
849                if (TextUtils.isEmpty(sortOrder)) {
850                    if (hasAccounts) {
851                        sortOrder = DEFAULT_BOOKMARKS_SORT_ORDER_SYNC;
852                    } else {
853                        sortOrder = DEFAULT_BOOKMARKS_SORT_ORDER;
854                    }
855                }
856
857                qb.setProjectionMap(BOOKMARKS_PROJECTION_MAP);
858                qb.setTables(TABLE_BOOKMARKS_JOIN_IMAGES);
859                break;
860            }
861
862            case BOOKMARKS_FOLDER: {
863                // Look for an account
864                boolean useAccount = false;
865                String accountType = uri.getQueryParameter(Bookmarks.PARAM_ACCOUNT_TYPE);
866                String accountName = uri.getQueryParameter(Bookmarks.PARAM_ACCOUNT_NAME);
867                if (!isNullAccount(accountType) && !isNullAccount(accountName)) {
868                    useAccount = true;
869                }
870
871                qb.setTables(TABLE_BOOKMARKS_JOIN_IMAGES);
872                String[] args;
873                String query;
874                // Set a default sort order if one isn't specified
875                if (TextUtils.isEmpty(sortOrder)) {
876                    if (useAccount) {
877                        sortOrder = DEFAULT_BOOKMARKS_SORT_ORDER_SYNC;
878                    } else {
879                        sortOrder = DEFAULT_BOOKMARKS_SORT_ORDER;
880                    }
881                }
882                if (!useAccount) {
883                    qb.setProjectionMap(BOOKMARKS_PROJECTION_MAP);
884                    String where = Bookmarks.PARENT + "=? AND " + Bookmarks.IS_DELETED + "=0";
885                    where = DatabaseUtils.concatenateWhere(where, selection);
886                    args = new String[] { Long.toString(FIXED_ID_ROOT) };
887                    if (selectionArgs != null) {
888                        args = DatabaseUtils.appendSelectionArgs(args, selectionArgs);
889                    }
890                    query = qb.buildQuery(projection, where, null, null, sortOrder, null);
891                } else {
892                    qb.setProjectionMap(BOOKMARKS_PROJECTION_MAP);
893                    String where = Bookmarks.ACCOUNT_TYPE + "=? AND " +
894                            Bookmarks.ACCOUNT_NAME + "=? " +
895                            "AND parent = " +
896                            "(SELECT _id FROM " + TABLE_BOOKMARKS + " WHERE " +
897                            ChromeSyncColumns.SERVER_UNIQUE + "=" +
898                            "'" + ChromeSyncColumns.FOLDER_NAME_BOOKMARKS_BAR + "' " +
899                            "AND account_type = ? AND account_name = ?) " +
900                            "AND " + Bookmarks.IS_DELETED + "=0";
901                    where = DatabaseUtils.concatenateWhere(where, selection);
902                    String bookmarksBarQuery = qb.buildQuery(projection,
903                            where, null, null, null, null);
904                    args = new String[] {accountType, accountName,
905                            accountType, accountName};
906                    if (selectionArgs != null) {
907                        args = DatabaseUtils.appendSelectionArgs(args, selectionArgs);
908                    }
909
910                    where = Bookmarks.ACCOUNT_TYPE + "=? AND " + Bookmarks.ACCOUNT_NAME + "=?" +
911                            " AND " + ChromeSyncColumns.SERVER_UNIQUE + "=?";
912                    where = DatabaseUtils.concatenateWhere(where, selection);
913                    qb.setProjectionMap(OTHER_BOOKMARKS_PROJECTION_MAP);
914                    String otherBookmarksQuery = qb.buildQuery(projection,
915                            where, null, null, null, null);
916
917                    query = qb.buildUnionQuery(
918                            new String[] { bookmarksBarQuery, otherBookmarksQuery },
919                            sortOrder, limit);
920
921                    args = DatabaseUtils.appendSelectionArgs(args, new String[] {
922                            accountType, accountName, ChromeSyncColumns.FOLDER_NAME_OTHER_BOOKMARKS,
923                            });
924                    if (selectionArgs != null) {
925                        args = DatabaseUtils.appendSelectionArgs(args, selectionArgs);
926                    }
927                }
928
929                Cursor cursor = db.rawQuery(query, args);
930                if (cursor != null) {
931                    cursor.setNotificationUri(getContext().getContentResolver(),
932                            BrowserContract.AUTHORITY_URI);
933                }
934                return cursor;
935            }
936
937            case BOOKMARKS_DEFAULT_FOLDER_ID: {
938                String accountName = uri.getQueryParameter(Bookmarks.PARAM_ACCOUNT_NAME);
939                String accountType = uri.getQueryParameter(Bookmarks.PARAM_ACCOUNT_TYPE);
940                long id = queryDefaultFolderId(accountName, accountType);
941                MatrixCursor c = new MatrixCursor(new String[] {Bookmarks._ID});
942                c.newRow().add(id);
943                return c;
944            }
945
946            case BOOKMARKS_SUGGESTIONS: {
947                return doSuggestQuery(selection, selectionArgs, limit);
948            }
949
950            case HISTORY_ID: {
951                selection = DatabaseUtils.concatenateWhere(selection, TABLE_HISTORY + "._id=?");
952                selectionArgs = DatabaseUtils.appendSelectionArgs(selectionArgs,
953                        new String[] { Long.toString(ContentUris.parseId(uri)) });
954                // fall through
955            }
956            case HISTORY: {
957                filterSearchClient(selectionArgs);
958                if (sortOrder == null) {
959                    sortOrder = DEFAULT_SORT_HISTORY;
960                }
961                qb.setProjectionMap(HISTORY_PROJECTION_MAP);
962                qb.setTables(TABLE_HISTORY_JOIN_IMAGES);
963                break;
964            }
965
966            case SEARCHES_ID: {
967                selection = DatabaseUtils.concatenateWhere(selection, TABLE_SEARCHES + "._id=?");
968                selectionArgs = DatabaseUtils.appendSelectionArgs(selectionArgs,
969                        new String[] { Long.toString(ContentUris.parseId(uri)) });
970                // fall through
971            }
972            case SEARCHES: {
973                qb.setTables(TABLE_SEARCHES);
974                qb.setProjectionMap(SEARCHES_PROJECTION_MAP);
975                break;
976            }
977
978            case SYNCSTATE: {
979                return mSyncHelper.query(db, projection, selection, selectionArgs, sortOrder);
980            }
981
982            case SYNCSTATE_ID: {
983                selection = appendAccountToSelection(uri, selection);
984                String selectionWithId =
985                        (SyncStateContract.Columns._ID + "=" + ContentUris.parseId(uri) + " ")
986                        + (selection == null ? "" : " AND (" + selection + ")");
987                return mSyncHelper.query(db, projection, selectionWithId, selectionArgs, sortOrder);
988            }
989
990            case IMAGES: {
991                qb.setTables(TABLE_IMAGES);
992                qb.setProjectionMap(IMAGES_PROJECTION_MAP);
993                break;
994            }
995
996            case LEGACY_ID:
997            case COMBINED_ID: {
998                selection = DatabaseUtils.concatenateWhere(
999                        selection, Combined._ID + " = CAST(? AS INTEGER)");
1000                selectionArgs = DatabaseUtils.appendSelectionArgs(selectionArgs,
1001                        new String[] { Long.toString(ContentUris.parseId(uri)) });
1002                // fall through
1003            }
1004            case LEGACY:
1005            case COMBINED: {
1006                if ((match == LEGACY || match == LEGACY_ID)
1007                        && projection == null) {
1008                    projection = Browser.HISTORY_PROJECTION;
1009                }
1010                String[] args = createCombinedQuery(uri, projection, qb);
1011                if (selectionArgs == null) {
1012                    selectionArgs = args;
1013                } else {
1014                    selectionArgs = DatabaseUtils.appendSelectionArgs(args, selectionArgs);
1015                }
1016                break;
1017            }
1018
1019            case SETTINGS: {
1020                qb.setTables(TABLE_SETTINGS);
1021                qb.setProjectionMap(SETTINGS_PROJECTION_MAP);
1022                break;
1023            }
1024
1025            case THUMBNAILS_ID: {
1026                selection = DatabaseUtils.concatenateWhere(
1027                        selection, Thumbnails._ID + " = ?");
1028                selectionArgs = DatabaseUtils.appendSelectionArgs(selectionArgs,
1029                        new String[] { Long.toString(ContentUris.parseId(uri)) });
1030                // fall through
1031            }
1032            case THUMBNAILS: {
1033                qb.setTables(TABLE_THUMBNAILS);
1034                break;
1035            }
1036
1037            default: {
1038                throw new UnsupportedOperationException("Unknown URL " + uri.toString());
1039            }
1040        }
1041
1042        Cursor cursor = qb.query(db, projection, selection, selectionArgs, groupBy,
1043                null, sortOrder, limit);
1044        cursor.setNotificationUri(getContext().getContentResolver(), BrowserContract.AUTHORITY_URI);
1045        return cursor;
1046    }
1047
1048    private Cursor doSuggestQuery(String selection, String[] selectionArgs, String limit) {
1049        if (selectionArgs[0] == null) {
1050            return null;
1051        } else {
1052            String like = selectionArgs[0] + "%";
1053            if (selectionArgs[0].startsWith("http")
1054                    || selectionArgs[0].startsWith("file")) {
1055                selectionArgs[0] = like;
1056            } else {
1057                selectionArgs = new String[5];
1058                selectionArgs[0] = "http://" + like;
1059                selectionArgs[1] = "http://www." + like;
1060                selectionArgs[2] = "https://" + like;
1061                selectionArgs[3] = "https://www." + like;
1062                // To match against titles.
1063                selectionArgs[4] = like;
1064                selection = SUGGEST_SELECTION;
1065            }
1066        }
1067        selection = DatabaseUtils.concatenateWhere(selection,
1068                Bookmarks.IS_DELETED + "=0 AND " + Bookmarks.IS_FOLDER + "=0");
1069
1070        Cursor c = mOpenHelper.getReadableDatabase().query(TABLE_BOOKMARKS,
1071                SUGGEST_PROJECTION, selection, selectionArgs, null, null,
1072                DEFAULT_BOOKMARKS_SORT_ORDER, null);
1073
1074        return new SuggestionsCursor(c);
1075    }
1076
1077    private String[] createCombinedQuery(
1078            Uri uri, String[] projection, SQLiteQueryBuilder qb) {
1079        String[] args = null;
1080        StringBuilder whereBuilder = new StringBuilder(128);
1081        whereBuilder.append(Bookmarks.IS_DELETED);
1082        whereBuilder.append(" = 0");
1083        // Look for account info
1084        Object[] withAccount = getSelectionWithAccounts(uri, null, null);
1085        String selection = (String) withAccount[0];
1086        String[] selectionArgs = (String[]) withAccount[1];
1087        if (selection != null) {
1088            whereBuilder.append(" AND " + selection);
1089            if (selectionArgs != null) {
1090                // We use the selection twice, hence we need to duplicate the args
1091                args = new String[selectionArgs.length * 2];
1092                System.arraycopy(selectionArgs, 0, args, 0, selectionArgs.length);
1093                System.arraycopy(selectionArgs, 0, args, selectionArgs.length,
1094                        selectionArgs.length);
1095            }
1096        }
1097        String where = whereBuilder.toString();
1098        // Build the bookmark subquery for history union subquery
1099        qb.setTables(TABLE_BOOKMARKS);
1100        String subQuery = qb.buildQuery(null, where, null, null, null, null);
1101        // Build the history union subquery
1102        qb.setTables(String.format(FORMAT_COMBINED_JOIN_SUBQUERY_JOIN_IMAGES, subQuery));
1103        qb.setProjectionMap(COMBINED_HISTORY_PROJECTION_MAP);
1104        String historySubQuery = qb.buildQuery(null,
1105                null, null, null, null, null);
1106        // Build the bookmark union subquery
1107        qb.setTables(TABLE_BOOKMARKS_JOIN_IMAGES);
1108        qb.setProjectionMap(COMBINED_BOOKMARK_PROJECTION_MAP);
1109        where += String.format(" AND %s NOT IN (SELECT %s FROM %s)",
1110                Combined.URL, History.URL, TABLE_HISTORY);
1111        String bookmarksSubQuery = qb.buildQuery(null, where,
1112                null, null, null, null);
1113        // Put it all together
1114        String query = qb.buildUnionQuery(
1115                new String[] {historySubQuery, bookmarksSubQuery},
1116                null, null);
1117        qb.setTables("(" + query + ")");
1118        qb.setProjectionMap(null);
1119        return args;
1120    }
1121
1122    int deleteBookmarks(String selection, String[] selectionArgs,
1123            boolean callerIsSyncAdapter) {
1124        //TODO cascade deletes down from folders
1125        final SQLiteDatabase db = mOpenHelper.getWritableDatabase();
1126        if (callerIsSyncAdapter) {
1127            return db.delete(TABLE_BOOKMARKS, selection, selectionArgs);
1128        }
1129        ContentValues values = new ContentValues();
1130        values.put(Bookmarks.DATE_MODIFIED, System.currentTimeMillis());
1131        values.put(Bookmarks.IS_DELETED, 1);
1132        return updateBookmarksInTransaction(values, selection, selectionArgs,
1133                callerIsSyncAdapter);
1134    }
1135
1136    @Override
1137    public int deleteInTransaction(Uri uri, String selection, String[] selectionArgs,
1138            boolean callerIsSyncAdapter) {
1139        final int match = URI_MATCHER.match(uri);
1140        final SQLiteDatabase db = mOpenHelper.getWritableDatabase();
1141        int deleted = 0;
1142        switch (match) {
1143            case BOOKMARKS_ID: {
1144                selection = DatabaseUtils.concatenateWhere(selection,
1145                        TABLE_BOOKMARKS + "._id=?");
1146                selectionArgs = DatabaseUtils.appendSelectionArgs(selectionArgs,
1147                        new String[] { Long.toString(ContentUris.parseId(uri)) });
1148                // fall through
1149            }
1150            case BOOKMARKS: {
1151                // Look for account info
1152                Object[] withAccount = getSelectionWithAccounts(uri, selection, selectionArgs);
1153                selection = (String) withAccount[0];
1154                selectionArgs = (String[]) withAccount[1];
1155                deleted = deleteBookmarks(selection, selectionArgs, callerIsSyncAdapter);
1156                pruneImages();
1157                if (deleted > 0) {
1158                    refreshWidgets();
1159                }
1160                break;
1161            }
1162
1163            case HISTORY_ID: {
1164                selection = DatabaseUtils.concatenateWhere(selection, TABLE_HISTORY + "._id=?");
1165                selectionArgs = DatabaseUtils.appendSelectionArgs(selectionArgs,
1166                        new String[] { Long.toString(ContentUris.parseId(uri)) });
1167                // fall through
1168            }
1169            case HISTORY: {
1170                filterSearchClient(selectionArgs);
1171                deleted = db.delete(TABLE_HISTORY, selection, selectionArgs);
1172                pruneImages();
1173                break;
1174            }
1175
1176            case SEARCHES_ID: {
1177                selection = DatabaseUtils.concatenateWhere(selection, TABLE_SEARCHES + "._id=?");
1178                selectionArgs = DatabaseUtils.appendSelectionArgs(selectionArgs,
1179                        new String[] { Long.toString(ContentUris.parseId(uri)) });
1180                // fall through
1181            }
1182            case SEARCHES: {
1183                deleted = db.delete(TABLE_SEARCHES, selection, selectionArgs);
1184                break;
1185            }
1186
1187            case SYNCSTATE: {
1188                deleted = mSyncHelper.delete(db, selection, selectionArgs);
1189                break;
1190            }
1191            case SYNCSTATE_ID: {
1192                String selectionWithId =
1193                        (SyncStateContract.Columns._ID + "=" + ContentUris.parseId(uri) + " ")
1194                        + (selection == null ? "" : " AND (" + selection + ")");
1195                deleted = mSyncHelper.delete(db, selectionWithId, selectionArgs);
1196                break;
1197            }
1198            case LEGACY_ID: {
1199                selection = DatabaseUtils.concatenateWhere(
1200                        selection, Combined._ID + " = CAST(? AS INTEGER)");
1201                selectionArgs = DatabaseUtils.appendSelectionArgs(selectionArgs,
1202                        new String[] { Long.toString(ContentUris.parseId(uri)) });
1203                // fall through
1204            }
1205            case LEGACY: {
1206                String[] projection = new String[] { Combined._ID,
1207                        Combined.IS_BOOKMARK, Combined.URL };
1208                SQLiteQueryBuilder qb = new SQLiteQueryBuilder();
1209                String[] args = createCombinedQuery(uri, projection, qb);
1210                if (selectionArgs == null) {
1211                    selectionArgs = args;
1212                } else {
1213                    selectionArgs = DatabaseUtils.appendSelectionArgs(
1214                            args, selectionArgs);
1215                }
1216                Cursor c = qb.query(db, projection, selection, selectionArgs,
1217                        null, null, null);
1218                while (c.moveToNext()) {
1219                    long id = c.getLong(0);
1220                    boolean isBookmark = c.getInt(1) != 0;
1221                    String url = c.getString(2);
1222                    if (isBookmark) {
1223                        deleted += deleteBookmarks(Bookmarks._ID + "=?",
1224                                new String[] { Long.toString(id) },
1225                                callerIsSyncAdapter);
1226                        db.delete(TABLE_HISTORY, History.URL + "=?",
1227                                new String[] { url });
1228                    } else {
1229                        deleted += db.delete(TABLE_HISTORY,
1230                                Bookmarks._ID + "=?",
1231                                new String[] { Long.toString(id) });
1232                    }
1233                }
1234                c.close();
1235                break;
1236            }
1237            case THUMBNAILS_ID: {
1238                selection = DatabaseUtils.concatenateWhere(
1239                        selection, Thumbnails._ID + " = ?");
1240                selectionArgs = DatabaseUtils.appendSelectionArgs(selectionArgs,
1241                        new String[] { Long.toString(ContentUris.parseId(uri)) });
1242                // fall through
1243            }
1244            case THUMBNAILS: {
1245                deleted = db.delete(TABLE_THUMBNAILS, selection, selectionArgs);
1246                break;
1247            }
1248            default: {
1249                throw new UnsupportedOperationException("Unknown delete URI " + uri);
1250            }
1251        }
1252        if (deleted > 0) {
1253            postNotifyUri(uri);
1254            postNotifyUri(LEGACY_AUTHORITY_URI);
1255        }
1256        return deleted;
1257    }
1258
1259    long queryDefaultFolderId(String accountName, String accountType) {
1260        if (!isNullAccount(accountName) && !isNullAccount(accountType)) {
1261            final SQLiteDatabase db = mOpenHelper.getReadableDatabase();
1262            Cursor c = db.query(TABLE_BOOKMARKS, new String[] { Bookmarks._ID },
1263                    ChromeSyncColumns.SERVER_UNIQUE + " = ?" +
1264                    " AND account_type = ? AND account_name = ?",
1265                    new String[] { ChromeSyncColumns.FOLDER_NAME_BOOKMARKS_BAR,
1266                    accountType, accountName }, null, null, null);
1267            try {
1268                if (c.moveToFirst()) {
1269                    return c.getLong(0);
1270                }
1271            } finally {
1272                c.close();
1273            }
1274        }
1275        return FIXED_ID_ROOT;
1276    }
1277
1278    @Override
1279    public Uri insertInTransaction(Uri uri, ContentValues values, boolean callerIsSyncAdapter) {
1280        int match = URI_MATCHER.match(uri);
1281        final SQLiteDatabase db = mOpenHelper.getWritableDatabase();
1282        long id = -1;
1283        if (match == LEGACY) {
1284            // Intercept and route to the correct table
1285            Integer bookmark = values.getAsInteger(BookmarkColumns.BOOKMARK);
1286            values.remove(BookmarkColumns.BOOKMARK);
1287            if (bookmark == null || bookmark == 0) {
1288                match = HISTORY;
1289            } else {
1290                match = BOOKMARKS;
1291                values.remove(BookmarkColumns.DATE);
1292                values.remove(BookmarkColumns.VISITS);
1293                values.remove(BookmarkColumns.USER_ENTERED);
1294                values.put(Bookmarks.IS_FOLDER, 0);
1295            }
1296        }
1297        switch (match) {
1298            case BOOKMARKS: {
1299                // Mark rows dirty if they're not coming from a sync adapter
1300                if (!callerIsSyncAdapter) {
1301                    long now = System.currentTimeMillis();
1302                    values.put(Bookmarks.DATE_CREATED, now);
1303                    values.put(Bookmarks.DATE_MODIFIED, now);
1304                    values.put(Bookmarks.DIRTY, 1);
1305
1306                    boolean hasAccounts = values.containsKey(Bookmarks.ACCOUNT_TYPE)
1307                            || values.containsKey(Bookmarks.ACCOUNT_NAME);
1308                    String accountType = values
1309                            .getAsString(Bookmarks.ACCOUNT_TYPE);
1310                    String accountName = values
1311                            .getAsString(Bookmarks.ACCOUNT_NAME);
1312                    boolean hasParent = values.containsKey(Bookmarks.PARENT);
1313                    if (hasParent && hasAccounts) {
1314                        // Let's make sure it's valid
1315                        long parentId = values.getAsLong(Bookmarks.PARENT);
1316                        hasParent = isValidParent(
1317                                accountType, accountName, parentId);
1318                    } else if (hasParent && !hasAccounts) {
1319                        long parentId = values.getAsLong(Bookmarks.PARENT);
1320                        hasParent = setParentValues(parentId, values);
1321                    }
1322
1323                    // If no parent is set default to the "Bookmarks Bar" folder
1324                    if (!hasParent) {
1325                        values.put(Bookmarks.PARENT,
1326                                queryDefaultFolderId(accountName, accountType));
1327                    }
1328                }
1329
1330                // If no position is requested put the bookmark at the beginning of the list
1331                if (!values.containsKey(Bookmarks.POSITION)) {
1332                    values.put(Bookmarks.POSITION, Long.toString(Long.MIN_VALUE));
1333                }
1334
1335                // Extract out the image values so they can be inserted into the images table
1336                String url = values.getAsString(Bookmarks.URL);
1337                ContentValues imageValues = extractImageValues(values, url);
1338                Boolean isFolder = values.getAsBoolean(Bookmarks.IS_FOLDER);
1339                if ((isFolder == null || !isFolder)
1340                        && imageValues != null && !TextUtils.isEmpty(url)) {
1341                    int count = db.update(TABLE_IMAGES, imageValues, Images.URL + "=?",
1342                            new String[] { url });
1343                    if (count == 0) {
1344                        db.insertOrThrow(TABLE_IMAGES, Images.FAVICON, imageValues);
1345                    }
1346                }
1347
1348                id = db.insertOrThrow(TABLE_BOOKMARKS, Bookmarks.DIRTY, values);
1349                refreshWidgets();
1350                break;
1351            }
1352
1353            case HISTORY: {
1354                // If no created time is specified set it to now
1355                if (!values.containsKey(History.DATE_CREATED)) {
1356                    values.put(History.DATE_CREATED, System.currentTimeMillis());
1357                }
1358                String url = values.getAsString(History.URL);
1359                url = filterSearchClient(url);
1360                values.put(History.URL, url);
1361
1362                // Extract out the image values so they can be inserted into the images table
1363                ContentValues imageValues = extractImageValues(values,
1364                        values.getAsString(History.URL));
1365                if (imageValues != null) {
1366                    db.insertOrThrow(TABLE_IMAGES, Images.FAVICON, imageValues);
1367                }
1368
1369                id = db.insertOrThrow(TABLE_HISTORY, History.VISITS, values);
1370                break;
1371            }
1372
1373            case SEARCHES: {
1374                id = insertSearchesInTransaction(db, values);
1375                break;
1376            }
1377
1378            case SYNCSTATE: {
1379                id = mSyncHelper.insert(db, values);
1380                break;
1381            }
1382
1383            case SETTINGS: {
1384                id = 0;
1385                insertSettingsInTransaction(db, values);
1386                break;
1387            }
1388
1389            case THUMBNAILS: {
1390                id = db.replaceOrThrow(TABLE_THUMBNAILS, null, values);
1391                break;
1392            }
1393
1394            default: {
1395                throw new UnsupportedOperationException("Unknown insert URI " + uri);
1396            }
1397        }
1398
1399        if (id >= 0) {
1400            postNotifyUri(uri);
1401            postNotifyUri(LEGACY_AUTHORITY_URI);
1402            return ContentUris.withAppendedId(uri, id);
1403        } else {
1404            return null;
1405        }
1406    }
1407
1408    private String[] getAccountNameAndType(long id) {
1409        if (id <= 0) {
1410            return null;
1411        }
1412        Uri uri = ContentUris.withAppendedId(Bookmarks.CONTENT_URI, id);
1413        Cursor c = query(uri,
1414                new String[] { Bookmarks.ACCOUNT_NAME, Bookmarks.ACCOUNT_TYPE },
1415                null, null, null);
1416        try {
1417            if (c.moveToFirst()) {
1418                String parentName = c.getString(0);
1419                String parentType = c.getString(1);
1420                return new String[] { parentName, parentType };
1421            }
1422            return null;
1423        } finally {
1424            c.close();
1425        }
1426    }
1427
1428    private boolean setParentValues(long parentId, ContentValues values) {
1429        String[] parent = getAccountNameAndType(parentId);
1430        if (parent == null) {
1431            return false;
1432        }
1433        values.put(Bookmarks.ACCOUNT_NAME, parent[0]);
1434        values.put(Bookmarks.ACCOUNT_TYPE, parent[1]);
1435        return true;
1436    }
1437
1438    private boolean isValidParent(String accountType, String accountName,
1439            long parentId) {
1440        String[] parent = getAccountNameAndType(parentId);
1441        if (parent != null
1442                && TextUtils.equals(accountName, parent[0])
1443                && TextUtils.equals(accountType, parent[1])) {
1444            return true;
1445        }
1446        return false;
1447    }
1448
1449    private void filterSearchClient(String[] selectionArgs) {
1450        if (selectionArgs != null) {
1451            for (int i = 0; i < selectionArgs.length; i++) {
1452                selectionArgs[i] = filterSearchClient(selectionArgs[i]);
1453            }
1454        }
1455    }
1456
1457    // Filters out the client= param for search urls
1458    private String filterSearchClient(String url) {
1459        // remove "client" before updating it to the history so that it wont
1460        // show up in the auto-complete list.
1461        int index = url.indexOf("client=");
1462        if (index > 0 && url.contains(".google.")) {
1463            int end = url.indexOf('&', index);
1464            if (end > 0) {
1465                url = url.substring(0, index)
1466                        .concat(url.substring(end + 1));
1467            } else {
1468                // the url.charAt(index-1) should be either '?' or '&'
1469                url = url.substring(0, index-1);
1470            }
1471        }
1472        return url;
1473    }
1474
1475    /**
1476     * Searches are unique, so perform an UPSERT manually since SQLite doesn't support them.
1477     */
1478    private long insertSearchesInTransaction(SQLiteDatabase db, ContentValues values) {
1479        String search = values.getAsString(Searches.SEARCH);
1480        if (TextUtils.isEmpty(search)) {
1481            throw new IllegalArgumentException("Must include the SEARCH field");
1482        }
1483        Cursor cursor = null;
1484        try {
1485            cursor = db.query(TABLE_SEARCHES, new String[] { Searches._ID },
1486                    Searches.SEARCH + "=?", new String[] { search }, null, null, null);
1487            if (cursor.moveToNext()) {
1488                long id = cursor.getLong(0);
1489                db.update(TABLE_SEARCHES, values, Searches._ID + "=?",
1490                        new String[] { Long.toString(id) });
1491                return id;
1492            } else {
1493                return db.insertOrThrow(TABLE_SEARCHES, Searches.SEARCH, values);
1494            }
1495        } finally {
1496            if (cursor != null) cursor.close();
1497        }
1498    }
1499
1500    /**
1501     * Settings are unique, so perform an UPSERT manually since SQLite doesn't support them.
1502     */
1503    private long insertSettingsInTransaction(SQLiteDatabase db, ContentValues values) {
1504        String key = values.getAsString(Settings.KEY);
1505        if (TextUtils.isEmpty(key)) {
1506            throw new IllegalArgumentException("Must include the KEY field");
1507        }
1508        String[] keyArray = new String[] { key };
1509        Cursor cursor = null;
1510        try {
1511            cursor = db.query(TABLE_SETTINGS, new String[] { Settings.KEY },
1512                    Settings.KEY + "=?", keyArray, null, null, null);
1513            if (cursor.moveToNext()) {
1514                long id = cursor.getLong(0);
1515                db.update(TABLE_SETTINGS, values, Settings.KEY + "=?", keyArray);
1516                return id;
1517            } else {
1518                return db.insertOrThrow(TABLE_SETTINGS, Settings.VALUE, values);
1519            }
1520        } finally {
1521            if (cursor != null) cursor.close();
1522        }
1523    }
1524
1525    @Override
1526    public int updateInTransaction(Uri uri, ContentValues values, String selection,
1527            String[] selectionArgs, boolean callerIsSyncAdapter) {
1528        int match = URI_MATCHER.match(uri);
1529        final SQLiteDatabase db = mOpenHelper.getWritableDatabase();
1530        if (match == LEGACY || match == LEGACY_ID) {
1531            // Intercept and route to the correct table
1532            Integer bookmark = values.getAsInteger(BookmarkColumns.BOOKMARK);
1533            values.remove(BookmarkColumns.BOOKMARK);
1534            if (bookmark == null || bookmark == 0) {
1535                if (match == LEGACY) {
1536                    match = HISTORY;
1537                } else {
1538                    match = HISTORY_ID;
1539                }
1540            } else {
1541                if (match == LEGACY) {
1542                    match = BOOKMARKS;
1543                } else {
1544                    match = BOOKMARKS_ID;
1545                }
1546                values.remove(BookmarkColumns.DATE);
1547                values.remove(BookmarkColumns.VISITS);
1548                values.remove(BookmarkColumns.USER_ENTERED);
1549            }
1550        }
1551        int modified = 0;
1552        switch (match) {
1553            case BOOKMARKS_ID: {
1554                selection = DatabaseUtils.concatenateWhere(selection,
1555                        TABLE_BOOKMARKS + "._id=?");
1556                selectionArgs = DatabaseUtils.appendSelectionArgs(selectionArgs,
1557                        new String[] { Long.toString(ContentUris.parseId(uri)) });
1558                // fall through
1559            }
1560            case BOOKMARKS: {
1561                Object[] withAccount = getSelectionWithAccounts(uri, selection, selectionArgs);
1562                selection = (String) withAccount[0];
1563                selectionArgs = (String[]) withAccount[1];
1564                modified = updateBookmarksInTransaction(values, selection, selectionArgs,
1565                        callerIsSyncAdapter);
1566                if (modified > 0) {
1567                    refreshWidgets();
1568                }
1569                break;
1570            }
1571
1572            case HISTORY_ID: {
1573                selection = DatabaseUtils.concatenateWhere(selection, TABLE_HISTORY + "._id=?");
1574                selectionArgs = DatabaseUtils.appendSelectionArgs(selectionArgs,
1575                        new String[] { Long.toString(ContentUris.parseId(uri)) });
1576                // fall through
1577            }
1578            case HISTORY: {
1579                modified = updateHistoryInTransaction(values, selection, selectionArgs);
1580                break;
1581            }
1582
1583            case SYNCSTATE: {
1584                modified = mSyncHelper.update(mDb, values,
1585                        appendAccountToSelection(uri, selection), selectionArgs);
1586                break;
1587            }
1588
1589            case SYNCSTATE_ID: {
1590                selection = appendAccountToSelection(uri, selection);
1591                String selectionWithId =
1592                        (SyncStateContract.Columns._ID + "=" + ContentUris.parseId(uri) + " ")
1593                        + (selection == null ? "" : " AND (" + selection + ")");
1594                modified = mSyncHelper.update(mDb, values,
1595                        selectionWithId, selectionArgs);
1596                break;
1597            }
1598
1599            case IMAGES: {
1600                String url = values.getAsString(Images.URL);
1601                if (TextUtils.isEmpty(url)) {
1602                    throw new IllegalArgumentException("Images.URL is required");
1603                }
1604                if (!shouldUpdateImages(db, url, values)) {
1605                    return 0;
1606                }
1607                int count = db.update(TABLE_IMAGES, values, Images.URL + "=?",
1608                        new String[] { url });
1609                if (count == 0) {
1610                    db.insertOrThrow(TABLE_IMAGES, Images.FAVICON, values);
1611                    count = 1;
1612                }
1613                if (getUrlCount(db, TABLE_BOOKMARKS, url) > 0) {
1614                    postNotifyUri(Bookmarks.CONTENT_URI);
1615                    refreshWidgets();
1616                }
1617                if (getUrlCount(db, TABLE_HISTORY, url) > 0) {
1618                    postNotifyUri(History.CONTENT_URI);
1619                }
1620                postNotifyUri(LEGACY_AUTHORITY_URI);
1621                pruneImages();
1622                return count;
1623            }
1624
1625            case SEARCHES: {
1626                modified = db.update(TABLE_SEARCHES, values, selection, selectionArgs);
1627                break;
1628            }
1629
1630            case ACCOUNTS: {
1631                Account[] accounts = AccountManager.get(getContext()).getAccounts();
1632                mSyncHelper.onAccountsChanged(mDb, accounts);
1633                break;
1634            }
1635
1636            case THUMBNAILS: {
1637                modified = db.update(TABLE_THUMBNAILS, values,
1638                        selection, selectionArgs);
1639                break;
1640            }
1641
1642            default: {
1643                throw new UnsupportedOperationException("Unknown update URI " + uri);
1644            }
1645        }
1646        pruneImages();
1647        if (modified > 0) {
1648            postNotifyUri(uri);
1649            postNotifyUri(LEGACY_AUTHORITY_URI);
1650        }
1651        return modified;
1652    }
1653
1654    // We want to avoid sending out more URI notifications than we have to
1655    // Thus, we check to see if the images we are about to store are already there
1656    // This is used because things like a site's favion or touch icon is rarely
1657    // changed, but the browser tries to update it every time the page loads.
1658    // Without this, we will always send out 3 URI notifications per page load.
1659    // With this, that drops to 0 or 1, depending on if the thumbnail changed.
1660    private boolean shouldUpdateImages(
1661            SQLiteDatabase db, String url, ContentValues values) {
1662        final String[] projection = new String[] {
1663                Images.FAVICON,
1664                Images.THUMBNAIL,
1665                Images.TOUCH_ICON,
1666        };
1667        Cursor cursor = db.query(TABLE_IMAGES, projection, Images.URL + "=?",
1668                new String[] { url }, null, null, null);
1669        byte[] nfavicon = values.getAsByteArray(Images.FAVICON);
1670        byte[] nthumb = values.getAsByteArray(Images.THUMBNAIL);
1671        byte[] ntouch = values.getAsByteArray(Images.TOUCH_ICON);
1672        byte[] cfavicon = null;
1673        byte[] cthumb = null;
1674        byte[] ctouch = null;
1675        try {
1676            if (cursor.getCount() <= 0) {
1677                return nfavicon != null || nthumb != null || ntouch != null;
1678            }
1679            while (cursor.moveToNext()) {
1680                if (nfavicon != null) {
1681                    cfavicon = cursor.getBlob(0);
1682                    if (!Arrays.equals(nfavicon, cfavicon)) {
1683                        return true;
1684                    }
1685                }
1686                if (nthumb != null) {
1687                    cthumb = cursor.getBlob(1);
1688                    if (!Arrays.equals(nthumb, cthumb)) {
1689                        return true;
1690                    }
1691                }
1692                if (ntouch != null) {
1693                    ctouch = cursor.getBlob(2);
1694                    if (!Arrays.equals(ntouch, ctouch)) {
1695                        return true;
1696                    }
1697                }
1698            }
1699        } finally {
1700            cursor.close();
1701        }
1702        return false;
1703    }
1704
1705    int getUrlCount(SQLiteDatabase db, String table, String url) {
1706        Cursor c = db.query(table, new String[] { "COUNT(*)" },
1707                "url = ?", new String[] { url }, null, null, null);
1708        try {
1709            int count = 0;
1710            if (c.moveToFirst()) {
1711                count = c.getInt(0);
1712            }
1713            return count;
1714        } finally {
1715            c.close();
1716        }
1717    }
1718
1719    /**
1720     * Does a query to find the matching bookmarks and updates each one with the provided values.
1721     */
1722    int updateBookmarksInTransaction(ContentValues values, String selection,
1723            String[] selectionArgs, boolean callerIsSyncAdapter) {
1724        int count = 0;
1725        final SQLiteDatabase db = mOpenHelper.getWritableDatabase();
1726        final String[] bookmarksProjection = new String[] {
1727                Bookmarks._ID, // 0
1728                Bookmarks.VERSION, // 1
1729                Bookmarks.URL, // 2
1730                Bookmarks.TITLE, // 3
1731                Bookmarks.IS_FOLDER, // 4
1732                Bookmarks.ACCOUNT_NAME, // 5
1733                Bookmarks.ACCOUNT_TYPE, // 6
1734        };
1735        Cursor cursor = db.query(TABLE_BOOKMARKS, bookmarksProjection,
1736                selection, selectionArgs, null, null, null);
1737        boolean updatingParent = values.containsKey(Bookmarks.PARENT);
1738        String parentAccountName = null;
1739        String parentAccountType = null;
1740        if (updatingParent) {
1741            long parent = values.getAsLong(Bookmarks.PARENT);
1742            Cursor c = db.query(TABLE_BOOKMARKS, new String[] {
1743                    Bookmarks.ACCOUNT_NAME, Bookmarks.ACCOUNT_TYPE},
1744                    "_id = ?", new String[] { Long.toString(parent) },
1745                    null, null, null);
1746            if (c.moveToFirst()) {
1747                parentAccountName = c.getString(0);
1748                parentAccountType = c.getString(1);
1749            }
1750            c.close();
1751        } else if (values.containsKey(Bookmarks.ACCOUNT_NAME)
1752                || values.containsKey(Bookmarks.ACCOUNT_TYPE)) {
1753            // TODO: Implement if needed (no one needs this yet)
1754        }
1755        try {
1756            String[] args = new String[1];
1757            // Mark the bookmark dirty if the caller isn't a sync adapter
1758            if (!callerIsSyncAdapter) {
1759                values.put(Bookmarks.DATE_MODIFIED, System.currentTimeMillis());
1760                values.put(Bookmarks.DIRTY, 1);
1761            }
1762
1763            boolean updatingUrl = values.containsKey(Bookmarks.URL);
1764            String url = null;
1765            if (updatingUrl) {
1766                url = values.getAsString(Bookmarks.URL);
1767            }
1768            ContentValues imageValues = extractImageValues(values, url);
1769
1770            while (cursor.moveToNext()) {
1771                long id = cursor.getLong(0);
1772                args[0] = Long.toString(id);
1773                String accountName = cursor.getString(5);
1774                String accountType = cursor.getString(6);
1775                // If we are updating the parent and either the account name or
1776                // type do not match that of the new parent
1777                if (updatingParent
1778                        && (!TextUtils.equals(accountName, parentAccountName)
1779                        || !TextUtils.equals(accountType, parentAccountType))) {
1780                    // Parent is a different account
1781                    // First, insert a new bookmark/folder with the new account
1782                    // Then, if this is a folder, reparent all it's children
1783                    // Finally, delete the old bookmark/folder
1784                    ContentValues newValues = valuesFromCursor(cursor);
1785                    newValues.putAll(values);
1786                    newValues.remove(Bookmarks._ID);
1787                    newValues.remove(Bookmarks.VERSION);
1788                    newValues.put(Bookmarks.ACCOUNT_NAME, parentAccountName);
1789                    newValues.put(Bookmarks.ACCOUNT_TYPE, parentAccountType);
1790                    Uri insertUri = insertInTransaction(Bookmarks.CONTENT_URI,
1791                            newValues, callerIsSyncAdapter);
1792                    long newId = ContentUris.parseId(insertUri);
1793                    if (cursor.getInt(4) != 0) {
1794                        // This is a folder, reparent
1795                        ContentValues updateChildren = new ContentValues(1);
1796                        updateChildren.put(Bookmarks.PARENT, newId);
1797                        count += updateBookmarksInTransaction(updateChildren,
1798                                Bookmarks.PARENT + "=?", new String[] {
1799                                Long.toString(id)}, callerIsSyncAdapter);
1800                    }
1801                    // Now, delete the old one
1802                    Uri uri = ContentUris.withAppendedId(Bookmarks.CONTENT_URI, id);
1803                    deleteInTransaction(uri, null, null, callerIsSyncAdapter);
1804                    count += 1;
1805                } else {
1806                    if (!callerIsSyncAdapter) {
1807                        // increase the local version for non-sync changes
1808                        values.put(Bookmarks.VERSION, cursor.getLong(1) + 1);
1809                    }
1810                    count += db.update(TABLE_BOOKMARKS, values, "_id=?", args);
1811                }
1812
1813                // Update the images over in their table
1814                if (imageValues != null) {
1815                    if (!updatingUrl) {
1816                        url = cursor.getString(2);
1817                        imageValues.put(Images.URL, url);
1818                    }
1819
1820                    if (!TextUtils.isEmpty(url)) {
1821                        args[0] = url;
1822                        if (db.update(TABLE_IMAGES, imageValues, Images.URL + "=?", args) == 0) {
1823                            db.insert(TABLE_IMAGES, Images.FAVICON, imageValues);
1824                        }
1825                    }
1826                }
1827            }
1828        } finally {
1829            if (cursor != null) cursor.close();
1830        }
1831        return count;
1832    }
1833
1834    ContentValues valuesFromCursor(Cursor c) {
1835        int count = c.getColumnCount();
1836        ContentValues values = new ContentValues(count);
1837        String[] colNames = c.getColumnNames();
1838        for (int i = 0; i < count; i++) {
1839            switch (c.getType(i)) {
1840            case Cursor.FIELD_TYPE_BLOB:
1841                values.put(colNames[i], c.getBlob(i));
1842                break;
1843            case Cursor.FIELD_TYPE_FLOAT:
1844                values.put(colNames[i], c.getFloat(i));
1845                break;
1846            case Cursor.FIELD_TYPE_INTEGER:
1847                values.put(colNames[i], c.getLong(i));
1848                break;
1849            case Cursor.FIELD_TYPE_STRING:
1850                values.put(colNames[i], c.getString(i));
1851                break;
1852            }
1853        }
1854        return values;
1855    }
1856
1857    /**
1858     * Does a query to find the matching bookmarks and updates each one with the provided values.
1859     */
1860    int updateHistoryInTransaction(ContentValues values, String selection, String[] selectionArgs) {
1861        int count = 0;
1862        final SQLiteDatabase db = mOpenHelper.getWritableDatabase();
1863        filterSearchClient(selectionArgs);
1864        Cursor cursor = query(History.CONTENT_URI,
1865                new String[] { History._ID, History.URL },
1866                selection, selectionArgs, null);
1867        try {
1868            String[] args = new String[1];
1869
1870            boolean updatingUrl = values.containsKey(History.URL);
1871            String url = null;
1872            if (updatingUrl) {
1873                url = filterSearchClient(values.getAsString(History.URL));
1874                values.put(History.URL, url);
1875            }
1876            ContentValues imageValues = extractImageValues(values, url);
1877
1878            while (cursor.moveToNext()) {
1879                args[0] = cursor.getString(0);
1880                count += db.update(TABLE_HISTORY, values, "_id=?", args);
1881
1882                // Update the images over in their table
1883                if (imageValues != null) {
1884                    if (!updatingUrl) {
1885                        url = cursor.getString(1);
1886                        imageValues.put(Images.URL, url);
1887                    }
1888                    args[0] = url;
1889                    if (db.update(TABLE_IMAGES, imageValues, Images.URL + "=?", args) == 0) {
1890                        db.insert(TABLE_IMAGES, Images.FAVICON, imageValues);
1891                    }
1892                }
1893            }
1894        } finally {
1895            if (cursor != null) cursor.close();
1896        }
1897        return count;
1898    }
1899
1900    String appendAccountToSelection(Uri uri, String selection) {
1901        final String accountName = uri.getQueryParameter(RawContacts.ACCOUNT_NAME);
1902        final String accountType = uri.getQueryParameter(RawContacts.ACCOUNT_TYPE);
1903
1904        final boolean partialUri = TextUtils.isEmpty(accountName) ^ TextUtils.isEmpty(accountType);
1905        if (partialUri) {
1906            // Throw when either account is incomplete
1907            throw new IllegalArgumentException(
1908                    "Must specify both or neither of ACCOUNT_NAME and ACCOUNT_TYPE for " + uri);
1909        }
1910
1911        // Accounts are valid by only checking one parameter, since we've
1912        // already ruled out partial accounts.
1913        final boolean validAccount = !TextUtils.isEmpty(accountName);
1914        if (validAccount) {
1915            StringBuilder selectionSb = new StringBuilder(RawContacts.ACCOUNT_NAME + "="
1916                    + DatabaseUtils.sqlEscapeString(accountName) + " AND "
1917                    + RawContacts.ACCOUNT_TYPE + "="
1918                    + DatabaseUtils.sqlEscapeString(accountType));
1919            if (!TextUtils.isEmpty(selection)) {
1920                selectionSb.append(" AND (");
1921                selectionSb.append(selection);
1922                selectionSb.append(')');
1923            }
1924            return selectionSb.toString();
1925        } else {
1926            return selection;
1927        }
1928    }
1929
1930    ContentValues extractImageValues(ContentValues values, String url) {
1931        ContentValues imageValues = null;
1932        // favicon
1933        if (values.containsKey(Bookmarks.FAVICON)) {
1934            imageValues = new ContentValues();
1935            imageValues.put(Images.FAVICON, values.getAsByteArray(Bookmarks.FAVICON));
1936            values.remove(Bookmarks.FAVICON);
1937        }
1938
1939        // thumbnail
1940        if (values.containsKey(Bookmarks.THUMBNAIL)) {
1941            if (imageValues == null) {
1942                imageValues = new ContentValues();
1943            }
1944            imageValues.put(Images.THUMBNAIL, values.getAsByteArray(Bookmarks.THUMBNAIL));
1945            values.remove(Bookmarks.THUMBNAIL);
1946        }
1947
1948        // touch icon
1949        if (values.containsKey(Bookmarks.TOUCH_ICON)) {
1950            if (imageValues == null) {
1951                imageValues = new ContentValues();
1952            }
1953            imageValues.put(Images.TOUCH_ICON, values.getAsByteArray(Bookmarks.TOUCH_ICON));
1954            values.remove(Bookmarks.TOUCH_ICON);
1955        }
1956
1957        if (imageValues != null) {
1958            imageValues.put(Images.URL,  url);
1959        }
1960        return imageValues;
1961    }
1962
1963    void pruneImages() {
1964        final SQLiteDatabase db = mOpenHelper.getWritableDatabase();
1965        db.delete(TABLE_IMAGES, IMAGE_PRUNE, null);
1966    }
1967
1968    static class SuggestionsCursor extends AbstractCursor {
1969        private static final int ID_INDEX = 0;
1970        private static final int URL_INDEX = 1;
1971        private static final int TITLE_INDEX = 2;
1972        // shared suggestion array index, make sure to match COLUMNS
1973        private static final int SUGGEST_COLUMN_INTENT_ACTION_ID = 1;
1974        private static final int SUGGEST_COLUMN_INTENT_DATA_ID = 2;
1975        private static final int SUGGEST_COLUMN_TEXT_1_ID = 3;
1976        private static final int SUGGEST_COLUMN_TEXT_2_TEXT_ID = 4;
1977        private static final int SUGGEST_COLUMN_TEXT_2_URL_ID = 5;
1978        private static final int SUGGEST_COLUMN_ICON_1_ID = 6;
1979
1980        // shared suggestion columns
1981        private static final String[] COLUMNS = new String[] {
1982                BaseColumns._ID,
1983                SearchManager.SUGGEST_COLUMN_INTENT_ACTION,
1984                SearchManager.SUGGEST_COLUMN_INTENT_DATA,
1985                SearchManager.SUGGEST_COLUMN_TEXT_1,
1986                SearchManager.SUGGEST_COLUMN_TEXT_2,
1987                SearchManager.SUGGEST_COLUMN_TEXT_2_URL,
1988                SearchManager.SUGGEST_COLUMN_ICON_1};
1989
1990        private Cursor mSource;
1991
1992        public SuggestionsCursor(Cursor cursor) {
1993            mSource = cursor;
1994        }
1995
1996        @Override
1997        public String[] getColumnNames() {
1998            return COLUMNS;
1999        }
2000
2001        @Override
2002        public String getString(int columnIndex) {
2003            switch (columnIndex) {
2004            case ID_INDEX:
2005                return mSource.getString(columnIndex);
2006            case SUGGEST_COLUMN_INTENT_ACTION_ID:
2007                return Intent.ACTION_VIEW;
2008            case SUGGEST_COLUMN_INTENT_DATA_ID:
2009                return mSource.getString(URL_INDEX);
2010            case SUGGEST_COLUMN_TEXT_2_TEXT_ID:
2011            case SUGGEST_COLUMN_TEXT_2_URL_ID:
2012                return UrlUtils.stripUrl(mSource.getString(URL_INDEX));
2013            case SUGGEST_COLUMN_TEXT_1_ID:
2014                return mSource.getString(TITLE_INDEX);
2015            case SUGGEST_COLUMN_ICON_1_ID:
2016                return Integer.toString(R.drawable.ic_bookmark_off_holo_dark);
2017            }
2018            return null;
2019        }
2020
2021        @Override
2022        public int getCount() {
2023            return mSource.getCount();
2024        }
2025
2026        @Override
2027        public double getDouble(int column) {
2028            throw new UnsupportedOperationException();
2029        }
2030
2031        @Override
2032        public float getFloat(int column) {
2033            throw new UnsupportedOperationException();
2034        }
2035
2036        @Override
2037        public int getInt(int column) {
2038            throw new UnsupportedOperationException();
2039        }
2040
2041        @Override
2042        public long getLong(int column) {
2043            switch (column) {
2044            case ID_INDEX:
2045                return mSource.getLong(ID_INDEX);
2046            }
2047            throw new UnsupportedOperationException();
2048        }
2049
2050        @Override
2051        public short getShort(int column) {
2052            throw new UnsupportedOperationException();
2053        }
2054
2055        @Override
2056        public boolean isNull(int column) {
2057            return mSource.isNull(column);
2058        }
2059
2060        @Override
2061        public boolean onMove(int oldPosition, int newPosition) {
2062            return mSource.moveToPosition(newPosition);
2063        }
2064    }
2065}
2066