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 
17 package com.android.browser.provider;
18 
19 import android.accounts.Account;
20 import android.accounts.AccountManager;
21 import android.app.SearchManager;
22 import android.content.ContentResolver;
23 import android.content.ContentUris;
24 import android.content.ContentValues;
25 import android.content.Context;
26 import android.content.Intent;
27 import android.content.UriMatcher;
28 import android.content.res.Resources;
29 import android.content.res.TypedArray;
30 import android.database.AbstractCursor;
31 import android.database.ContentObserver;
32 import android.database.Cursor;
33 import android.database.DatabaseUtils;
34 import android.database.MatrixCursor;
35 import android.database.sqlite.SQLiteDatabase;
36 import android.database.sqlite.SQLiteOpenHelper;
37 import android.database.sqlite.SQLiteQueryBuilder;
38 import android.net.Uri;
39 import android.provider.BaseColumns;
40 import android.provider.Browser;
41 import android.provider.Browser.BookmarkColumns;
42 import android.provider.BrowserContract;
43 import android.provider.BrowserContract.Accounts;
44 import android.provider.BrowserContract.Bookmarks;
45 import android.provider.BrowserContract.ChromeSyncColumns;
46 import android.provider.BrowserContract.Combined;
47 import android.provider.BrowserContract.History;
48 import android.provider.BrowserContract.Images;
49 import android.provider.BrowserContract.Searches;
50 import android.provider.BrowserContract.Settings;
51 import android.provider.BrowserContract.SyncState;
52 import android.provider.ContactsContract.RawContacts;
53 import android.provider.SyncStateContract;
54 import android.text.TextUtils;
55 
56 import com.android.browser.R;
57 import com.android.browser.UrlUtils;
58 import com.android.browser.widget.BookmarkThumbnailWidgetProvider;
59 import com.android.common.content.SyncStateContentProviderHelper;
60 import com.google.common.annotations.VisibleForTesting;
61 
62 import java.io.ByteArrayOutputStream;
63 import java.io.File;
64 import java.io.IOException;
65 import java.io.InputStream;
66 import java.util.ArrayList;
67 import java.util.Arrays;
68 import java.util.HashMap;
69 import java.util.List;
70 
71 public class BrowserProvider2 extends SQLiteContentProvider {
72 
73     public static final String PARAM_GROUP_BY = "groupBy";
74     public static final String PARAM_ALLOW_EMPTY_ACCOUNTS = "allowEmptyAccounts";
75 
76     public static final String LEGACY_AUTHORITY = "browser";
77     static final Uri LEGACY_AUTHORITY_URI = new Uri.Builder()
78             .authority(LEGACY_AUTHORITY).scheme("content").build();
79 
80     public static interface Thumbnails {
81         public static final Uri CONTENT_URI = Uri.withAppendedPath(
82                 BrowserContract.AUTHORITY_URI, "thumbnails");
83         public static final String _ID = "_id";
84         public static final String THUMBNAIL = "thumbnail";
85     }
86 
87     public static interface OmniboxSuggestions {
88         public static final Uri CONTENT_URI = Uri.withAppendedPath(
89                 BrowserContract.AUTHORITY_URI, "omnibox_suggestions");
90         public static final String _ID = "_id";
91         public static final String URL = "url";
92         public static final String TITLE = "title";
93         public static final String IS_BOOKMARK = "bookmark";
94     }
95 
96     static final String TABLE_BOOKMARKS = "bookmarks";
97     static final String TABLE_HISTORY = "history";
98     static final String TABLE_IMAGES = "images";
99     static final String TABLE_SEARCHES = "searches";
100     static final String TABLE_SYNC_STATE = "syncstate";
101     static final String TABLE_SETTINGS = "settings";
102     static final String TABLE_SNAPSHOTS = "snapshots";
103     static final String TABLE_THUMBNAILS = "thumbnails";
104 
105     static final String TABLE_BOOKMARKS_JOIN_IMAGES = "bookmarks LEFT OUTER JOIN images " +
106             "ON bookmarks.url = images." + Images.URL;
107     static final String TABLE_HISTORY_JOIN_IMAGES = "history LEFT OUTER JOIN images " +
108             "ON history.url = images." + Images.URL;
109 
110     static final String VIEW_ACCOUNTS = "v_accounts";
111     static final String VIEW_SNAPSHOTS_COMBINED = "v_snapshots_combined";
112     static final String VIEW_OMNIBOX_SUGGESTIONS = "v_omnibox_suggestions";
113 
114     static final String FORMAT_COMBINED_JOIN_SUBQUERY_JOIN_IMAGES =
115             "history LEFT OUTER JOIN (%s) bookmarks " +
116             "ON history.url = bookmarks.url LEFT OUTER JOIN images " +
117             "ON history.url = images.url_key";
118 
119     static final String DEFAULT_SORT_HISTORY = History.DATE_LAST_VISITED + " DESC";
120     static final String DEFAULT_SORT_ACCOUNTS =
121             Accounts.ACCOUNT_NAME + " IS NOT NULL DESC, "
122             + Accounts.ACCOUNT_NAME + " ASC";
123 
124     private static final String TABLE_BOOKMARKS_JOIN_HISTORY =
125         "history LEFT OUTER JOIN bookmarks ON history.url = bookmarks.url";
126 
127     private static final String[] SUGGEST_PROJECTION = new String[] {
128             qualifyColumn(TABLE_HISTORY, History._ID),
129             qualifyColumn(TABLE_HISTORY, History.URL),
130             bookmarkOrHistoryColumn(Combined.TITLE),
131             bookmarkOrHistoryLiteral(Combined.URL,
132                     Integer.toString(R.drawable.ic_bookmark_off_holo_dark),
133                     Integer.toString(R.drawable.ic_history_holo_dark)),
134             qualifyColumn(TABLE_HISTORY, History.DATE_LAST_VISITED)};
135 
136     private static final String SUGGEST_SELECTION =
137             "history.url LIKE ? OR history.url LIKE ? OR history.url LIKE ? OR history.url LIKE ?"
138             + " OR history.title LIKE ? OR bookmarks.title LIKE ?";
139 
140     private static final String ZERO_QUERY_SUGGEST_SELECTION =
141             TABLE_HISTORY + "." + History.DATE_LAST_VISITED + " != 0";
142 
143     private static final String IMAGE_PRUNE =
144             "url_key NOT IN (SELECT url FROM bookmarks " +
145             "WHERE url IS NOT NULL AND deleted == 0) AND url_key NOT IN " +
146             "(SELECT url FROM history WHERE url IS NOT NULL)";
147 
148     static final int THUMBNAILS = 10;
149     static final int THUMBNAILS_ID = 11;
150     static final int OMNIBOX_SUGGESTIONS = 20;
151 
152     static final int BOOKMARKS = 1000;
153     static final int BOOKMARKS_ID = 1001;
154     static final int BOOKMARKS_FOLDER = 1002;
155     static final int BOOKMARKS_FOLDER_ID = 1003;
156     static final int BOOKMARKS_SUGGESTIONS = 1004;
157     static final int BOOKMARKS_DEFAULT_FOLDER_ID = 1005;
158 
159     static final int HISTORY = 2000;
160     static final int HISTORY_ID = 2001;
161 
162     static final int SEARCHES = 3000;
163     static final int SEARCHES_ID = 3001;
164 
165     static final int SYNCSTATE = 4000;
166     static final int SYNCSTATE_ID = 4001;
167 
168     static final int IMAGES = 5000;
169 
170     static final int COMBINED = 6000;
171     static final int COMBINED_ID = 6001;
172 
173     static final int ACCOUNTS = 7000;
174 
175     static final int SETTINGS = 8000;
176 
177     static final int LEGACY = 9000;
178     static final int LEGACY_ID = 9001;
179 
180     public static final long FIXED_ID_ROOT = 1;
181 
182     // Default sort order for unsync'd bookmarks
183     static final String DEFAULT_BOOKMARKS_SORT_ORDER =
184             Bookmarks.IS_FOLDER + " DESC, position ASC, _id ASC";
185 
186     // Default sort order for sync'd bookmarks
187     static final String DEFAULT_BOOKMARKS_SORT_ORDER_SYNC = "position ASC, _id ASC";
188 
189     static final UriMatcher URI_MATCHER = new UriMatcher(UriMatcher.NO_MATCH);
190 
191     static final HashMap<String, String> ACCOUNTS_PROJECTION_MAP = new HashMap<String, String>();
192     static final HashMap<String, String> BOOKMARKS_PROJECTION_MAP = new HashMap<String, String>();
193     static final HashMap<String, String> OTHER_BOOKMARKS_PROJECTION_MAP =
194             new HashMap<String, String>();
195     static final HashMap<String, String> HISTORY_PROJECTION_MAP = new HashMap<String, String>();
196     static final HashMap<String, String> SYNC_STATE_PROJECTION_MAP = new HashMap<String, String>();
197     static final HashMap<String, String> IMAGES_PROJECTION_MAP = new HashMap<String, String>();
198     static final HashMap<String, String> COMBINED_HISTORY_PROJECTION_MAP = new HashMap<String, String>();
199     static final HashMap<String, String> COMBINED_BOOKMARK_PROJECTION_MAP = new HashMap<String, String>();
200     static final HashMap<String, String> SEARCHES_PROJECTION_MAP = new HashMap<String, String>();
201     static final HashMap<String, String> SETTINGS_PROJECTION_MAP = new HashMap<String, String>();
202 
203     static {
204         final UriMatcher matcher = URI_MATCHER;
205         final String authority = BrowserContract.AUTHORITY;
matcher.addURI(authority, "accounts", ACCOUNTS)206         matcher.addURI(authority, "accounts", ACCOUNTS);
matcher.addURI(authority, "bookmarks", BOOKMARKS)207         matcher.addURI(authority, "bookmarks", BOOKMARKS);
matcher.addURI(authority, "bookmarks/#", BOOKMARKS_ID)208         matcher.addURI(authority, "bookmarks/#", BOOKMARKS_ID);
matcher.addURI(authority, "bookmarks/folder", BOOKMARKS_FOLDER)209         matcher.addURI(authority, "bookmarks/folder", BOOKMARKS_FOLDER);
matcher.addURI(authority, "bookmarks/folder/#", BOOKMARKS_FOLDER_ID)210         matcher.addURI(authority, "bookmarks/folder/#", BOOKMARKS_FOLDER_ID);
matcher.addURI(authority, "bookmarks/folder/id", BOOKMARKS_DEFAULT_FOLDER_ID)211         matcher.addURI(authority, "bookmarks/folder/id", BOOKMARKS_DEFAULT_FOLDER_ID);
matcher.addURI(authority, SearchManager.SUGGEST_URI_PATH_QUERY, BOOKMARKS_SUGGESTIONS)212         matcher.addURI(authority,
213                 SearchManager.SUGGEST_URI_PATH_QUERY,
214                 BOOKMARKS_SUGGESTIONS);
matcher.addURI(authority, "bookmarks/" + SearchManager.SUGGEST_URI_PATH_QUERY, BOOKMARKS_SUGGESTIONS)215         matcher.addURI(authority,
216                 "bookmarks/" + SearchManager.SUGGEST_URI_PATH_QUERY,
217                 BOOKMARKS_SUGGESTIONS);
matcher.addURI(authority, "history", HISTORY)218         matcher.addURI(authority, "history", HISTORY);
matcher.addURI(authority, "history/#", HISTORY_ID)219         matcher.addURI(authority, "history/#", HISTORY_ID);
matcher.addURI(authority, "searches", SEARCHES)220         matcher.addURI(authority, "searches", SEARCHES);
matcher.addURI(authority, "searches/#", SEARCHES_ID)221         matcher.addURI(authority, "searches/#", SEARCHES_ID);
matcher.addURI(authority, "syncstate", SYNCSTATE)222         matcher.addURI(authority, "syncstate", SYNCSTATE);
matcher.addURI(authority, "syncstate/#", SYNCSTATE_ID)223         matcher.addURI(authority, "syncstate/#", SYNCSTATE_ID);
matcher.addURI(authority, "images", IMAGES)224         matcher.addURI(authority, "images", IMAGES);
matcher.addURI(authority, "combined", COMBINED)225         matcher.addURI(authority, "combined", COMBINED);
matcher.addURI(authority, "combined/#", COMBINED_ID)226         matcher.addURI(authority, "combined/#", COMBINED_ID);
matcher.addURI(authority, "settings", SETTINGS)227         matcher.addURI(authority, "settings", SETTINGS);
matcher.addURI(authority, "thumbnails", THUMBNAILS)228         matcher.addURI(authority, "thumbnails", THUMBNAILS);
matcher.addURI(authority, "thumbnails/#", THUMBNAILS_ID)229         matcher.addURI(authority, "thumbnails/#", THUMBNAILS_ID);
matcher.addURI(authority, "omnibox_suggestions", OMNIBOX_SUGGESTIONS)230         matcher.addURI(authority, "omnibox_suggestions", OMNIBOX_SUGGESTIONS);
231 
232         // Legacy
matcher.addURI(LEGACY_AUTHORITY, "searches", SEARCHES)233         matcher.addURI(LEGACY_AUTHORITY, "searches", SEARCHES);
matcher.addURI(LEGACY_AUTHORITY, "searches/#", SEARCHES_ID)234         matcher.addURI(LEGACY_AUTHORITY, "searches/#", SEARCHES_ID);
matcher.addURI(LEGACY_AUTHORITY, "bookmarks", LEGACY)235         matcher.addURI(LEGACY_AUTHORITY, "bookmarks", LEGACY);
matcher.addURI(LEGACY_AUTHORITY, "bookmarks/#", LEGACY_ID)236         matcher.addURI(LEGACY_AUTHORITY, "bookmarks/#", LEGACY_ID);
matcher.addURI(LEGACY_AUTHORITY, SearchManager.SUGGEST_URI_PATH_QUERY, BOOKMARKS_SUGGESTIONS)237         matcher.addURI(LEGACY_AUTHORITY,
238                 SearchManager.SUGGEST_URI_PATH_QUERY,
239                 BOOKMARKS_SUGGESTIONS);
matcher.addURI(LEGACY_AUTHORITY, "bookmarks/" + SearchManager.SUGGEST_URI_PATH_QUERY, BOOKMARKS_SUGGESTIONS)240         matcher.addURI(LEGACY_AUTHORITY,
241                 "bookmarks/" + SearchManager.SUGGEST_URI_PATH_QUERY,
242                 BOOKMARKS_SUGGESTIONS);
243 
244         // Projection maps
245         HashMap<String, String> map;
246 
247         // Accounts
248         map = ACCOUNTS_PROJECTION_MAP;
map.put(Accounts.ACCOUNT_TYPE, Accounts.ACCOUNT_TYPE)249         map.put(Accounts.ACCOUNT_TYPE, Accounts.ACCOUNT_TYPE);
map.put(Accounts.ACCOUNT_NAME, Accounts.ACCOUNT_NAME)250         map.put(Accounts.ACCOUNT_NAME, Accounts.ACCOUNT_NAME);
map.put(Accounts.ROOT_ID, Accounts.ROOT_ID)251         map.put(Accounts.ROOT_ID, Accounts.ROOT_ID);
252 
253         // Bookmarks
254         map = BOOKMARKS_PROJECTION_MAP;
map.put(Bookmarks._ID, qualifyColumn(TABLE_BOOKMARKS, Bookmarks._ID))255         map.put(Bookmarks._ID, qualifyColumn(TABLE_BOOKMARKS, Bookmarks._ID));
map.put(Bookmarks.TITLE, Bookmarks.TITLE)256         map.put(Bookmarks.TITLE, Bookmarks.TITLE);
map.put(Bookmarks.URL, Bookmarks.URL)257         map.put(Bookmarks.URL, Bookmarks.URL);
map.put(Bookmarks.FAVICON, Bookmarks.FAVICON)258         map.put(Bookmarks.FAVICON, Bookmarks.FAVICON);
map.put(Bookmarks.THUMBNAIL, Bookmarks.THUMBNAIL)259         map.put(Bookmarks.THUMBNAIL, Bookmarks.THUMBNAIL);
map.put(Bookmarks.TOUCH_ICON, Bookmarks.TOUCH_ICON)260         map.put(Bookmarks.TOUCH_ICON, Bookmarks.TOUCH_ICON);
map.put(Bookmarks.IS_FOLDER, Bookmarks.IS_FOLDER)261         map.put(Bookmarks.IS_FOLDER, Bookmarks.IS_FOLDER);
map.put(Bookmarks.PARENT, Bookmarks.PARENT)262         map.put(Bookmarks.PARENT, Bookmarks.PARENT);
map.put(Bookmarks.POSITION, Bookmarks.POSITION)263         map.put(Bookmarks.POSITION, Bookmarks.POSITION);
map.put(Bookmarks.INSERT_AFTER, Bookmarks.INSERT_AFTER)264         map.put(Bookmarks.INSERT_AFTER, Bookmarks.INSERT_AFTER);
map.put(Bookmarks.IS_DELETED, Bookmarks.IS_DELETED)265         map.put(Bookmarks.IS_DELETED, Bookmarks.IS_DELETED);
map.put(Bookmarks.ACCOUNT_NAME, Bookmarks.ACCOUNT_NAME)266         map.put(Bookmarks.ACCOUNT_NAME, Bookmarks.ACCOUNT_NAME);
map.put(Bookmarks.ACCOUNT_TYPE, Bookmarks.ACCOUNT_TYPE)267         map.put(Bookmarks.ACCOUNT_TYPE, Bookmarks.ACCOUNT_TYPE);
map.put(Bookmarks.SOURCE_ID, Bookmarks.SOURCE_ID)268         map.put(Bookmarks.SOURCE_ID, Bookmarks.SOURCE_ID);
map.put(Bookmarks.VERSION, Bookmarks.VERSION)269         map.put(Bookmarks.VERSION, Bookmarks.VERSION);
map.put(Bookmarks.DATE_CREATED, Bookmarks.DATE_CREATED)270         map.put(Bookmarks.DATE_CREATED, Bookmarks.DATE_CREATED);
map.put(Bookmarks.DATE_MODIFIED, Bookmarks.DATE_MODIFIED)271         map.put(Bookmarks.DATE_MODIFIED, Bookmarks.DATE_MODIFIED);
map.put(Bookmarks.DIRTY, Bookmarks.DIRTY)272         map.put(Bookmarks.DIRTY, Bookmarks.DIRTY);
map.put(Bookmarks.SYNC1, Bookmarks.SYNC1)273         map.put(Bookmarks.SYNC1, Bookmarks.SYNC1);
map.put(Bookmarks.SYNC2, Bookmarks.SYNC2)274         map.put(Bookmarks.SYNC2, Bookmarks.SYNC2);
map.put(Bookmarks.SYNC3, Bookmarks.SYNC3)275         map.put(Bookmarks.SYNC3, Bookmarks.SYNC3);
map.put(Bookmarks.SYNC4, Bookmarks.SYNC4)276         map.put(Bookmarks.SYNC4, Bookmarks.SYNC4);
map.put(Bookmarks.SYNC5, Bookmarks.SYNC5)277         map.put(Bookmarks.SYNC5, Bookmarks.SYNC5);
map.put(Bookmarks.PARENT_SOURCE_ID, "(SELECT " + Bookmarks.SOURCE_ID + " FROM " + TABLE_BOOKMARKS + " A WHERE " + "A." + Bookmarks._ID + "=" + TABLE_BOOKMARKS + "." + Bookmarks.PARENT + ") AS " + Bookmarks.PARENT_SOURCE_ID)278         map.put(Bookmarks.PARENT_SOURCE_ID, "(SELECT " + Bookmarks.SOURCE_ID +
279                 " FROM " + TABLE_BOOKMARKS + " A WHERE " +
280                 "A." + Bookmarks._ID + "=" + TABLE_BOOKMARKS + "." + Bookmarks.PARENT +
281                 ") AS " + Bookmarks.PARENT_SOURCE_ID);
map.put(Bookmarks.INSERT_AFTER_SOURCE_ID, "(SELECT " + Bookmarks.SOURCE_ID + " FROM " + TABLE_BOOKMARKS + " A WHERE " + "A." + Bookmarks._ID + "=" + TABLE_BOOKMARKS + "." + Bookmarks.INSERT_AFTER + ") AS " + Bookmarks.INSERT_AFTER_SOURCE_ID)282         map.put(Bookmarks.INSERT_AFTER_SOURCE_ID, "(SELECT " + Bookmarks.SOURCE_ID +
283                 " FROM " + TABLE_BOOKMARKS + " A WHERE " +
284                 "A." + Bookmarks._ID + "=" + TABLE_BOOKMARKS + "." + Bookmarks.INSERT_AFTER +
285                 ") AS " + Bookmarks.INSERT_AFTER_SOURCE_ID);
map.put(Bookmarks.TYPE, "CASE " + " WHEN " + Bookmarks.IS_FOLDER + "=0 THEN " + Bookmarks.BOOKMARK_TYPE_BOOKMARK + " WHEN " + ChromeSyncColumns.SERVER_UNIQUE + "='" + ChromeSyncColumns.FOLDER_NAME_BOOKMARKS_BAR + "' THEN " + Bookmarks.BOOKMARK_TYPE_BOOKMARK_BAR_FOLDER + " WHEN " + ChromeSyncColumns.SERVER_UNIQUE + "='" + ChromeSyncColumns.FOLDER_NAME_OTHER_BOOKMARKS + "' THEN " + Bookmarks.BOOKMARK_TYPE_OTHER_FOLDER + " ELSE " + Bookmarks.BOOKMARK_TYPE_FOLDER + " END AS " + Bookmarks.TYPE)286         map.put(Bookmarks.TYPE, "CASE "
287                 + " WHEN " + Bookmarks.IS_FOLDER + "=0 THEN "
288                     + Bookmarks.BOOKMARK_TYPE_BOOKMARK
289                 + " WHEN " + ChromeSyncColumns.SERVER_UNIQUE + "='"
290                     + ChromeSyncColumns.FOLDER_NAME_BOOKMARKS_BAR + "' THEN "
291                     + Bookmarks.BOOKMARK_TYPE_BOOKMARK_BAR_FOLDER
292                 + " WHEN " + ChromeSyncColumns.SERVER_UNIQUE + "='"
293                     + ChromeSyncColumns.FOLDER_NAME_OTHER_BOOKMARKS + "' THEN "
294                     + Bookmarks.BOOKMARK_TYPE_OTHER_FOLDER
295                 + " ELSE " + Bookmarks.BOOKMARK_TYPE_FOLDER
296                 + " END AS " + Bookmarks.TYPE);
297 
298         // Other bookmarks
299         OTHER_BOOKMARKS_PROJECTION_MAP.putAll(BOOKMARKS_PROJECTION_MAP);
OTHER_BOOKMARKS_PROJECTION_MAP.put(Bookmarks.POSITION, Long.toString(Long.MAX_VALUE) + " AS " + Bookmarks.POSITION)300         OTHER_BOOKMARKS_PROJECTION_MAP.put(Bookmarks.POSITION,
301                 Long.toString(Long.MAX_VALUE) + " AS " + Bookmarks.POSITION);
302 
303         // History
304         map = HISTORY_PROJECTION_MAP;
map.put(History._ID, qualifyColumn(TABLE_HISTORY, History._ID))305         map.put(History._ID, qualifyColumn(TABLE_HISTORY, History._ID));
map.put(History.TITLE, History.TITLE)306         map.put(History.TITLE, History.TITLE);
map.put(History.URL, History.URL)307         map.put(History.URL, History.URL);
map.put(History.FAVICON, History.FAVICON)308         map.put(History.FAVICON, History.FAVICON);
map.put(History.THUMBNAIL, History.THUMBNAIL)309         map.put(History.THUMBNAIL, History.THUMBNAIL);
map.put(History.TOUCH_ICON, History.TOUCH_ICON)310         map.put(History.TOUCH_ICON, History.TOUCH_ICON);
map.put(History.DATE_CREATED, History.DATE_CREATED)311         map.put(History.DATE_CREATED, History.DATE_CREATED);
map.put(History.DATE_LAST_VISITED, History.DATE_LAST_VISITED)312         map.put(History.DATE_LAST_VISITED, History.DATE_LAST_VISITED);
map.put(History.VISITS, History.VISITS)313         map.put(History.VISITS, History.VISITS);
map.put(History.USER_ENTERED, History.USER_ENTERED)314         map.put(History.USER_ENTERED, History.USER_ENTERED);
315 
316         // Sync state
317         map = SYNC_STATE_PROJECTION_MAP;
map.put(SyncState._ID, SyncState._ID)318         map.put(SyncState._ID, SyncState._ID);
map.put(SyncState.ACCOUNT_NAME, SyncState.ACCOUNT_NAME)319         map.put(SyncState.ACCOUNT_NAME, SyncState.ACCOUNT_NAME);
map.put(SyncState.ACCOUNT_TYPE, SyncState.ACCOUNT_TYPE)320         map.put(SyncState.ACCOUNT_TYPE, SyncState.ACCOUNT_TYPE);
map.put(SyncState.DATA, SyncState.DATA)321         map.put(SyncState.DATA, SyncState.DATA);
322 
323         // Images
324         map = IMAGES_PROJECTION_MAP;
map.put(Images.URL, Images.URL)325         map.put(Images.URL, Images.URL);
map.put(Images.FAVICON, Images.FAVICON)326         map.put(Images.FAVICON, Images.FAVICON);
map.put(Images.THUMBNAIL, Images.THUMBNAIL)327         map.put(Images.THUMBNAIL, Images.THUMBNAIL);
map.put(Images.TOUCH_ICON, Images.TOUCH_ICON)328         map.put(Images.TOUCH_ICON, Images.TOUCH_ICON);
329 
330         // Combined history half
331         map = COMBINED_HISTORY_PROJECTION_MAP;
map.put(Combined._ID, bookmarkOrHistoryColumn(Combined._ID))332         map.put(Combined._ID, bookmarkOrHistoryColumn(Combined._ID));
map.put(Combined.TITLE, bookmarkOrHistoryColumn(Combined.TITLE))333         map.put(Combined.TITLE, bookmarkOrHistoryColumn(Combined.TITLE));
map.put(Combined.URL, qualifyColumn(TABLE_HISTORY, Combined.URL))334         map.put(Combined.URL, qualifyColumn(TABLE_HISTORY, Combined.URL));
map.put(Combined.DATE_CREATED, qualifyColumn(TABLE_HISTORY, Combined.DATE_CREATED))335         map.put(Combined.DATE_CREATED, qualifyColumn(TABLE_HISTORY, Combined.DATE_CREATED));
map.put(Combined.DATE_LAST_VISITED, Combined.DATE_LAST_VISITED)336         map.put(Combined.DATE_LAST_VISITED, Combined.DATE_LAST_VISITED);
map.put(Combined.IS_BOOKMARK, "CASE WHEN " + TABLE_BOOKMARKS + "." + Bookmarks._ID + " IS NOT NULL THEN 1 ELSE 0 END AS " + Combined.IS_BOOKMARK)337         map.put(Combined.IS_BOOKMARK, "CASE WHEN " +
338                 TABLE_BOOKMARKS + "." + Bookmarks._ID +
339                 " IS NOT NULL THEN 1 ELSE 0 END AS " + Combined.IS_BOOKMARK);
map.put(Combined.VISITS, Combined.VISITS)340         map.put(Combined.VISITS, Combined.VISITS);
map.put(Combined.FAVICON, Combined.FAVICON)341         map.put(Combined.FAVICON, Combined.FAVICON);
map.put(Combined.THUMBNAIL, Combined.THUMBNAIL)342         map.put(Combined.THUMBNAIL, Combined.THUMBNAIL);
map.put(Combined.TOUCH_ICON, Combined.TOUCH_ICON)343         map.put(Combined.TOUCH_ICON, Combined.TOUCH_ICON);
map.put(Combined.USER_ENTERED, "NULL AS " + Combined.USER_ENTERED)344         map.put(Combined.USER_ENTERED, "NULL AS " + Combined.USER_ENTERED);
345 
346         // Combined bookmark half
347         map = COMBINED_BOOKMARK_PROJECTION_MAP;
map.put(Combined._ID, Combined._ID)348         map.put(Combined._ID, Combined._ID);
map.put(Combined.TITLE, Combined.TITLE)349         map.put(Combined.TITLE, Combined.TITLE);
map.put(Combined.URL, Combined.URL)350         map.put(Combined.URL, Combined.URL);
map.put(Combined.DATE_CREATED, Combined.DATE_CREATED)351         map.put(Combined.DATE_CREATED, Combined.DATE_CREATED);
map.put(Combined.DATE_LAST_VISITED, "NULL AS " + Combined.DATE_LAST_VISITED)352         map.put(Combined.DATE_LAST_VISITED, "NULL AS " + Combined.DATE_LAST_VISITED);
map.put(Combined.IS_BOOKMARK, "1 AS " + Combined.IS_BOOKMARK)353         map.put(Combined.IS_BOOKMARK, "1 AS " + Combined.IS_BOOKMARK);
map.put(Combined.VISITS, "0 AS " + Combined.VISITS)354         map.put(Combined.VISITS, "0 AS " + Combined.VISITS);
map.put(Combined.FAVICON, Combined.FAVICON)355         map.put(Combined.FAVICON, Combined.FAVICON);
map.put(Combined.THUMBNAIL, Combined.THUMBNAIL)356         map.put(Combined.THUMBNAIL, Combined.THUMBNAIL);
map.put(Combined.TOUCH_ICON, Combined.TOUCH_ICON)357         map.put(Combined.TOUCH_ICON, Combined.TOUCH_ICON);
map.put(Combined.USER_ENTERED, "NULL AS " + Combined.USER_ENTERED)358         map.put(Combined.USER_ENTERED, "NULL AS " + Combined.USER_ENTERED);
359 
360         // Searches
361         map = SEARCHES_PROJECTION_MAP;
map.put(Searches._ID, Searches._ID)362         map.put(Searches._ID, Searches._ID);
map.put(Searches.SEARCH, Searches.SEARCH)363         map.put(Searches.SEARCH, Searches.SEARCH);
map.put(Searches.DATE, Searches.DATE)364         map.put(Searches.DATE, Searches.DATE);
365 
366         // Settings
367         map = SETTINGS_PROJECTION_MAP;
map.put(Settings.KEY, Settings.KEY)368         map.put(Settings.KEY, Settings.KEY);
map.put(Settings.VALUE, Settings.VALUE)369         map.put(Settings.VALUE, Settings.VALUE);
370     }
371 
bookmarkOrHistoryColumn(String column)372     static final String bookmarkOrHistoryColumn(String column) {
373         return "CASE WHEN bookmarks." + column + " IS NOT NULL THEN " +
374                 "bookmarks." + column + " ELSE history." + column + " END AS " + column;
375     }
376 
bookmarkOrHistoryLiteral(String column, String bookmarkValue, String historyValue)377     static final String bookmarkOrHistoryLiteral(String column, String bookmarkValue,
378             String historyValue) {
379         return "CASE WHEN bookmarks." + column + " IS NOT NULL THEN \"" + bookmarkValue +
380                 "\" ELSE \"" + historyValue + "\" END";
381     }
382 
qualifyColumn(String table, String column)383     static final String qualifyColumn(String table, String column) {
384         return table + "." + column + " AS " + column;
385     }
386 
387     DatabaseHelper mOpenHelper;
388     SyncStateContentProviderHelper mSyncHelper = new SyncStateContentProviderHelper();
389     // This is so provider tests can intercept widget updating
390     ContentObserver mWidgetObserver = null;
391     boolean mUpdateWidgets = false;
392     boolean mSyncToNetwork = true;
393 
394     final class DatabaseHelper extends SQLiteOpenHelper {
395         static final String DATABASE_NAME = "browser2.db";
396         static final int DATABASE_VERSION = 32;
DatabaseHelper(Context context)397         public DatabaseHelper(Context context) {
398             super(context, DATABASE_NAME, null, DATABASE_VERSION);
399             setWriteAheadLoggingEnabled(true);
400         }
401 
402         @Override
onCreate(SQLiteDatabase db)403         public void onCreate(SQLiteDatabase db) {
404             db.execSQL("CREATE TABLE " + TABLE_BOOKMARKS + "(" +
405                     Bookmarks._ID + " INTEGER PRIMARY KEY AUTOINCREMENT," +
406                     Bookmarks.TITLE + " TEXT," +
407                     Bookmarks.URL + " TEXT," +
408                     Bookmarks.IS_FOLDER + " INTEGER NOT NULL DEFAULT 0," +
409                     Bookmarks.PARENT + " INTEGER," +
410                     Bookmarks.POSITION + " INTEGER NOT NULL," +
411                     Bookmarks.INSERT_AFTER + " INTEGER," +
412                     Bookmarks.IS_DELETED + " INTEGER NOT NULL DEFAULT 0," +
413                     Bookmarks.ACCOUNT_NAME + " TEXT," +
414                     Bookmarks.ACCOUNT_TYPE + " TEXT," +
415                     Bookmarks.SOURCE_ID + " TEXT," +
416                     Bookmarks.VERSION + " INTEGER NOT NULL DEFAULT 1," +
417                     Bookmarks.DATE_CREATED + " INTEGER," +
418                     Bookmarks.DATE_MODIFIED + " INTEGER," +
419                     Bookmarks.DIRTY + " INTEGER NOT NULL DEFAULT 0," +
420                     Bookmarks.SYNC1 + " TEXT," +
421                     Bookmarks.SYNC2 + " TEXT," +
422                     Bookmarks.SYNC3 + " TEXT," +
423                     Bookmarks.SYNC4 + " TEXT," +
424                     Bookmarks.SYNC5 + " TEXT" +
425                     ");");
426 
427             // TODO indices
428 
429             db.execSQL("CREATE TABLE " + TABLE_HISTORY + "(" +
430                     History._ID + " INTEGER PRIMARY KEY AUTOINCREMENT," +
431                     History.TITLE + " TEXT," +
432                     History.URL + " TEXT NOT NULL," +
433                     History.DATE_CREATED + " INTEGER," +
434                     History.DATE_LAST_VISITED + " INTEGER," +
435                     History.VISITS + " INTEGER NOT NULL DEFAULT 0," +
436                     History.USER_ENTERED + " INTEGER" +
437                     ");");
438 
439             db.execSQL("CREATE TABLE " + TABLE_IMAGES + " (" +
440                     Images.URL + " TEXT UNIQUE NOT NULL," +
441                     Images.FAVICON + " BLOB," +
442                     Images.THUMBNAIL + " BLOB," +
443                     Images.TOUCH_ICON + " BLOB" +
444                     ");");
445             db.execSQL("CREATE INDEX imagesUrlIndex ON " + TABLE_IMAGES +
446                     "(" + Images.URL + ")");
447 
448             db.execSQL("CREATE TABLE " + TABLE_SEARCHES + " (" +
449                     Searches._ID + " INTEGER PRIMARY KEY AUTOINCREMENT," +
450                     Searches.SEARCH + " TEXT," +
451                     Searches.DATE + " LONG" +
452                     ");");
453 
454             db.execSQL("CREATE TABLE " + TABLE_SETTINGS + " (" +
455                     Settings.KEY + " TEXT PRIMARY KEY," +
456                     Settings.VALUE + " TEXT NOT NULL" +
457                     ");");
458 
459             createAccountsView(db);
460             createThumbnails(db);
461 
462             mSyncHelper.createDatabase(db);
463 
464             if (!importFromBrowserProvider(db)) {
465                 createDefaultBookmarks(db);
466             }
467 
468             enableSync(db);
469             createOmniboxSuggestions(db);
470         }
471 
createOmniboxSuggestions(SQLiteDatabase db)472         void createOmniboxSuggestions(SQLiteDatabase db) {
473             db.execSQL(SQL_CREATE_VIEW_OMNIBOX_SUGGESTIONS);
474         }
475 
createThumbnails(SQLiteDatabase db)476         void createThumbnails(SQLiteDatabase db) {
477             db.execSQL("CREATE TABLE IF NOT EXISTS " + TABLE_THUMBNAILS + " (" +
478                     Thumbnails._ID + " INTEGER PRIMARY KEY," +
479                     Thumbnails.THUMBNAIL + " BLOB NOT NULL" +
480                     ");");
481         }
482 
enableSync(SQLiteDatabase db)483         void enableSync(SQLiteDatabase db) {
484             ContentValues values = new ContentValues();
485             values.put(Settings.KEY, Settings.KEY_SYNC_ENABLED);
486             values.put(Settings.VALUE, 1);
487             insertSettingsInTransaction(db, values);
488             // Enable bookmark sync on all accounts
489             AccountManager am = (AccountManager) getContext().getSystemService(
490                     Context.ACCOUNT_SERVICE);
491             if (am == null) {
492                 return;
493             }
494             Account[] accounts = am.getAccountsByType("com.google");
495             if (accounts == null || accounts.length == 0) {
496                 return;
497             }
498             for (Account account : accounts) {
499                 if (ContentResolver.getIsSyncable(
500                         account, BrowserContract.AUTHORITY) == 0) {
501                     // Account wasn't syncable, enable it
502                     ContentResolver.setIsSyncable(
503                             account, BrowserContract.AUTHORITY, 1);
504                     ContentResolver.setSyncAutomatically(
505                             account, BrowserContract.AUTHORITY, true);
506                 }
507             }
508         }
509 
importFromBrowserProvider(SQLiteDatabase db)510         boolean importFromBrowserProvider(SQLiteDatabase db) {
511             Context context = getContext();
512             File oldDbFile = context.getDatabasePath(BrowserProvider.sDatabaseName);
513             if (oldDbFile.exists()) {
514                 BrowserProvider.DatabaseHelper helper =
515                         new BrowserProvider.DatabaseHelper(context);
516                 SQLiteDatabase oldDb = helper.getWritableDatabase();
517                 Cursor c = null;
518                 try {
519                     String table = BrowserProvider.TABLE_NAMES[BrowserProvider.URI_MATCH_BOOKMARKS];
520                     // Import bookmarks
521                     c = oldDb.query(table,
522                             new String[] {
523                             BookmarkColumns.URL, // 0
524                             BookmarkColumns.TITLE, // 1
525                             BookmarkColumns.FAVICON, // 2
526                             BookmarkColumns.TOUCH_ICON, // 3
527                             BookmarkColumns.CREATED, // 4
528                             }, BookmarkColumns.BOOKMARK + "!=0", null,
529                             null, null, null);
530                     if (c != null) {
531                         while (c.moveToNext()) {
532                             String url = c.getString(0);
533                             if (TextUtils.isEmpty(url))
534                                 continue; // We require a valid URL
535                             ContentValues values = new ContentValues();
536                             values.put(Bookmarks.URL, url);
537                             values.put(Bookmarks.TITLE, c.getString(1));
538                             values.put(Bookmarks.DATE_CREATED, c.getInt(4));
539                             values.put(Bookmarks.POSITION, 0);
540                             values.put(Bookmarks.PARENT, FIXED_ID_ROOT);
541                             ContentValues imageValues = new ContentValues();
542                             imageValues.put(Images.URL, url);
543                             imageValues.put(Images.FAVICON, c.getBlob(2));
544                             imageValues.put(Images.TOUCH_ICON, c.getBlob(3));
545                             db.insert(TABLE_IMAGES, Images.THUMBNAIL, imageValues);
546                             db.insert(TABLE_BOOKMARKS, Bookmarks.DIRTY, values);
547                         }
548                         c.close();
549                     }
550                     // Import history
551                     c = oldDb.query(table,
552                             new String[] {
553                             BookmarkColumns.URL, // 0
554                             BookmarkColumns.TITLE, // 1
555                             BookmarkColumns.VISITS, // 2
556                             BookmarkColumns.DATE, // 3
557                             BookmarkColumns.CREATED, // 4
558                             }, BookmarkColumns.VISITS + " > 0 OR "
559                             + BookmarkColumns.BOOKMARK + " = 0",
560                             null, null, null, null);
561                     if (c != null) {
562                         while (c.moveToNext()) {
563                             ContentValues values = new ContentValues();
564                             String url = c.getString(0);
565                             if (TextUtils.isEmpty(url))
566                                 continue; // We require a valid URL
567                             values.put(History.URL, url);
568                             values.put(History.TITLE, c.getString(1));
569                             values.put(History.VISITS, c.getInt(2));
570                             values.put(History.DATE_LAST_VISITED, c.getLong(3));
571                             values.put(History.DATE_CREATED, c.getLong(4));
572                             db.insert(TABLE_HISTORY, History.FAVICON, values);
573                         }
574                         c.close();
575                     }
576                     // Wipe the old DB, in case the delete fails.
577                     oldDb.delete(table, null, null);
578                 } finally {
579                     if (c != null) c.close();
580                     oldDb.close();
581                     helper.close();
582                 }
583                 if (!oldDbFile.delete()) {
584                     oldDbFile.deleteOnExit();
585                 }
586                 return true;
587             }
588             return false;
589         }
590 
createAccountsView(SQLiteDatabase db)591         void createAccountsView(SQLiteDatabase db) {
592             db.execSQL("CREATE VIEW IF NOT EXISTS v_accounts AS "
593                     + "SELECT NULL AS " + Accounts.ACCOUNT_NAME
594                     + ", NULL AS " + Accounts.ACCOUNT_TYPE
595                     + ", " + FIXED_ID_ROOT + " AS " + Accounts.ROOT_ID
596                     + " UNION ALL SELECT " + Accounts.ACCOUNT_NAME
597                     + ", " + Accounts.ACCOUNT_TYPE + ", "
598                     + Bookmarks._ID + " AS " + Accounts.ROOT_ID
599                     + " FROM " + TABLE_BOOKMARKS + " WHERE "
600                     + ChromeSyncColumns.SERVER_UNIQUE + " = \""
601                     + ChromeSyncColumns.FOLDER_NAME_BOOKMARKS_BAR + "\" AND "
602                     + Bookmarks.IS_DELETED + " = 0");
603         }
604 
605         @Override
onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion)606         public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
607             if (oldVersion < 32) {
608                 createOmniboxSuggestions(db);
609             }
610             if (oldVersion < 31) {
611                 createThumbnails(db);
612             }
613             if (oldVersion < 30) {
614                 db.execSQL("DROP VIEW IF EXISTS " + VIEW_SNAPSHOTS_COMBINED);
615                 db.execSQL("DROP TABLE IF EXISTS " + TABLE_SNAPSHOTS);
616             }
617             if (oldVersion < 28) {
618                 enableSync(db);
619             }
620             if (oldVersion < 27) {
621                 createAccountsView(db);
622             }
623             if (oldVersion < 26) {
624                 db.execSQL("DROP VIEW IF EXISTS combined");
625             }
626             if (oldVersion < 25) {
627                 db.execSQL("DROP TABLE IF EXISTS " + TABLE_BOOKMARKS);
628                 db.execSQL("DROP TABLE IF EXISTS " + TABLE_HISTORY);
629                 db.execSQL("DROP TABLE IF EXISTS " + TABLE_SEARCHES);
630                 db.execSQL("DROP TABLE IF EXISTS " + TABLE_IMAGES);
631                 db.execSQL("DROP TABLE IF EXISTS " + TABLE_SETTINGS);
632                 mSyncHelper.onAccountsChanged(db, new Account[] {}); // remove all sync info
633                 onCreate(db);
634             }
635         }
636 
onOpen(SQLiteDatabase db)637         public void onOpen(SQLiteDatabase db) {
638             mSyncHelper.onDatabaseOpened(db);
639         }
640 
createDefaultBookmarks(SQLiteDatabase db)641         private void createDefaultBookmarks(SQLiteDatabase db) {
642             ContentValues values = new ContentValues();
643             // TODO figure out how to deal with localization for the defaults
644 
645             // Bookmarks folder
646             values.put(Bookmarks._ID, FIXED_ID_ROOT);
647             values.put(ChromeSyncColumns.SERVER_UNIQUE, ChromeSyncColumns.FOLDER_NAME_BOOKMARKS);
648             values.put(Bookmarks.TITLE, "Bookmarks");
649             values.putNull(Bookmarks.PARENT);
650             values.put(Bookmarks.POSITION, 0);
651             values.put(Bookmarks.IS_FOLDER, true);
652             values.put(Bookmarks.DIRTY, true);
653             db.insertOrThrow(TABLE_BOOKMARKS, null, values);
654 
655             addDefaultBookmarks(db, FIXED_ID_ROOT);
656         }
657 
addDefaultBookmarks(SQLiteDatabase db, long parentId)658         private void addDefaultBookmarks(SQLiteDatabase db, long parentId) {
659             Resources res = getContext().getResources();
660             final CharSequence[] bookmarks = res.getTextArray(
661                     R.array.bookmarks);
662             int size = bookmarks.length;
663             TypedArray preloads = res.obtainTypedArray(R.array.bookmark_preloads);
664             try {
665                 String parent = Long.toString(parentId);
666                 String now = Long.toString(System.currentTimeMillis());
667                 for (int i = 0; i < size; i = i + 2) {
668                     CharSequence bookmarkDestination = replaceSystemPropertyInString(getContext(),
669                             bookmarks[i + 1]);
670                     db.execSQL("INSERT INTO bookmarks (" +
671                             Bookmarks.TITLE + ", " +
672                             Bookmarks.URL + ", " +
673                             Bookmarks.IS_FOLDER + "," +
674                             Bookmarks.PARENT + "," +
675                             Bookmarks.POSITION + "," +
676                             Bookmarks.DATE_CREATED +
677                         ") VALUES (" +
678                             "'" + bookmarks[i] + "', " +
679                             "'" + bookmarkDestination + "', " +
680                             "0," +
681                             parent + "," +
682                             Integer.toString(i) + "," +
683                             now +
684                             ");");
685 
686                     int faviconId = preloads.getResourceId(i, 0);
687                     int thumbId = preloads.getResourceId(i + 1, 0);
688                     byte[] thumb = null, favicon = null;
689                     try {
690                         thumb = readRaw(res, thumbId);
691                     } catch (IOException e) {
692                     }
693                     try {
694                         favicon = readRaw(res, faviconId);
695                     } catch (IOException e) {
696                     }
697                     if (thumb != null || favicon != null) {
698                         ContentValues imageValues = new ContentValues();
699                         imageValues.put(Images.URL, bookmarkDestination.toString());
700                         if (favicon != null) {
701                             imageValues.put(Images.FAVICON, favicon);
702                         }
703                         if (thumb != null) {
704                             imageValues.put(Images.THUMBNAIL, thumb);
705                         }
706                         db.insert(TABLE_IMAGES, Images.FAVICON, imageValues);
707                     }
708                 }
709             } catch (ArrayIndexOutOfBoundsException e) {
710             } finally {
711                 preloads.recycle();
712             }
713         }
714 
readRaw(Resources res, int id)715         private byte[] readRaw(Resources res, int id) throws IOException {
716             if (id == 0) {
717                 return null;
718             }
719             InputStream is = res.openRawResource(id);
720             try {
721                 ByteArrayOutputStream bos = new ByteArrayOutputStream();
722                 byte[] buf = new byte[4096];
723                 int read;
724                 while ((read = is.read(buf)) > 0) {
725                     bos.write(buf, 0, read);
726                 }
727                 bos.flush();
728                 return bos.toByteArray();
729             } finally {
730                 is.close();
731             }
732         }
733 
734         // XXX: This is a major hack to remove our dependency on gsf constants and
735         // its content provider. http://b/issue?id=2425179
getClientId(ContentResolver cr)736         private String getClientId(ContentResolver cr) {
737             String ret = "android-google";
738             Cursor c = null;
739             try {
740                 c = cr.query(Uri.parse("content://com.google.settings/partner"),
741                         new String[] { "value" }, "name='client_id'", null, null);
742                 if (c != null && c.moveToNext()) {
743                     ret = c.getString(0);
744                 }
745             } catch (RuntimeException ex) {
746                 // fall through to return the default
747             } finally {
748                 if (c != null) {
749                     c.close();
750                 }
751             }
752             return ret;
753         }
754 
replaceSystemPropertyInString(Context context, CharSequence srcString)755         private CharSequence replaceSystemPropertyInString(Context context, CharSequence srcString) {
756             StringBuffer sb = new StringBuffer();
757             int lastCharLoc = 0;
758 
759             final String client_id = getClientId(context.getContentResolver());
760 
761             for (int i = 0; i < srcString.length(); ++i) {
762                 char c = srcString.charAt(i);
763                 if (c == '{') {
764                     sb.append(srcString.subSequence(lastCharLoc, i));
765                     lastCharLoc = i;
766               inner:
767                     for (int j = i; j < srcString.length(); ++j) {
768                         char k = srcString.charAt(j);
769                         if (k == '}') {
770                             String propertyKeyValue = srcString.subSequence(i + 1, j).toString();
771                             if (propertyKeyValue.equals("CLIENT_ID")) {
772                                 sb.append(client_id);
773                             } else {
774                                 sb.append("unknown");
775                             }
776                             lastCharLoc = j + 1;
777                             i = j;
778                             break inner;
779                         }
780                     }
781                 }
782             }
783             if (srcString.length() - lastCharLoc > 0) {
784                 // Put on the tail, if there is one
785                 sb.append(srcString.subSequence(lastCharLoc, srcString.length()));
786             }
787             return sb;
788         }
789     }
790 
791     @Override
getDatabaseHelper(Context context)792     public SQLiteOpenHelper getDatabaseHelper(Context context) {
793         synchronized (this) {
794             if (mOpenHelper == null) {
795                 mOpenHelper = new DatabaseHelper(context);
796             }
797             return mOpenHelper;
798         }
799     }
800 
801     @Override
isCallerSyncAdapter(Uri uri)802     public boolean isCallerSyncAdapter(Uri uri) {
803         return uri.getBooleanQueryParameter(BrowserContract.CALLER_IS_SYNCADAPTER, false);
804     }
805 
806     @VisibleForTesting
setWidgetObserver(ContentObserver obs)807     public void setWidgetObserver(ContentObserver obs) {
808         mWidgetObserver = obs;
809     }
810 
refreshWidgets()811     void refreshWidgets() {
812         mUpdateWidgets = true;
813     }
814 
815     @Override
onEndTransaction(boolean callerIsSyncAdapter)816     protected void onEndTransaction(boolean callerIsSyncAdapter) {
817         super.onEndTransaction(callerIsSyncAdapter);
818         if (mUpdateWidgets) {
819             if (mWidgetObserver == null) {
820                 BookmarkThumbnailWidgetProvider.refreshWidgets(getContext());
821             } else {
822                 mWidgetObserver.dispatchChange(false);
823             }
824             mUpdateWidgets = false;
825         }
826         mSyncToNetwork = true;
827     }
828 
829     @Override
getType(Uri uri)830     public String getType(Uri uri) {
831         final int match = URI_MATCHER.match(uri);
832         switch (match) {
833             case LEGACY:
834             case BOOKMARKS:
835                 return Bookmarks.CONTENT_TYPE;
836             case LEGACY_ID:
837             case BOOKMARKS_ID:
838                 return Bookmarks.CONTENT_ITEM_TYPE;
839             case HISTORY:
840                 return History.CONTENT_TYPE;
841             case HISTORY_ID:
842                 return History.CONTENT_ITEM_TYPE;
843             case SEARCHES:
844                 return Searches.CONTENT_TYPE;
845             case SEARCHES_ID:
846                 return Searches.CONTENT_ITEM_TYPE;
847         }
848         return null;
849     }
850 
isNullAccount(String account)851     boolean isNullAccount(String account) {
852         if (account == null) return true;
853         account = account.trim();
854         return account.length() == 0 || account.equals("null");
855     }
856 
getSelectionWithAccounts(Uri uri, String selection, String[] selectionArgs)857     Object[] getSelectionWithAccounts(Uri uri, String selection, String[] selectionArgs) {
858         // Look for account info
859         String accountType = uri.getQueryParameter(Bookmarks.PARAM_ACCOUNT_TYPE);
860         String accountName = uri.getQueryParameter(Bookmarks.PARAM_ACCOUNT_NAME);
861         boolean hasAccounts = false;
862         if (accountType != null && accountName != null) {
863             if (!isNullAccount(accountType) && !isNullAccount(accountName)) {
864                 selection = DatabaseUtils.concatenateWhere(selection,
865                         Bookmarks.ACCOUNT_TYPE + "=? AND " + Bookmarks.ACCOUNT_NAME + "=? ");
866                 selectionArgs = DatabaseUtils.appendSelectionArgs(selectionArgs,
867                         new String[] { accountType, accountName });
868                 hasAccounts = true;
869             } else {
870                 selection = DatabaseUtils.concatenateWhere(selection,
871                         Bookmarks.ACCOUNT_NAME + " IS NULL AND " +
872                         Bookmarks.ACCOUNT_TYPE + " IS NULL");
873             }
874         }
875         return new Object[] { selection, selectionArgs, hasAccounts };
876     }
877 
878     @Override
query(Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder)879     public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs,
880             String sortOrder) {
881         SQLiteDatabase db = mOpenHelper.getReadableDatabase();
882         final int match = URI_MATCHER.match(uri);
883         SQLiteQueryBuilder qb = new SQLiteQueryBuilder();
884         String limit = uri.getQueryParameter(BrowserContract.PARAM_LIMIT);
885         String groupBy = uri.getQueryParameter(PARAM_GROUP_BY);
886         switch (match) {
887             case ACCOUNTS: {
888                 qb.setTables(VIEW_ACCOUNTS);
889                 qb.setProjectionMap(ACCOUNTS_PROJECTION_MAP);
890                 String allowEmpty = uri.getQueryParameter(PARAM_ALLOW_EMPTY_ACCOUNTS);
891                 if ("false".equals(allowEmpty)) {
892                     selection = DatabaseUtils.concatenateWhere(selection,
893                             SQL_WHERE_ACCOUNT_HAS_BOOKMARKS);
894                 }
895                 if (sortOrder == null) {
896                     sortOrder = DEFAULT_SORT_ACCOUNTS;
897                 }
898                 break;
899             }
900 
901             case BOOKMARKS_FOLDER_ID:
902             case BOOKMARKS_ID:
903             case BOOKMARKS: {
904                 // Only show deleted bookmarks if requested to do so
905                 if (!uri.getBooleanQueryParameter(Bookmarks.QUERY_PARAMETER_SHOW_DELETED, false)) {
906                     selection = DatabaseUtils.concatenateWhere(
907                             Bookmarks.IS_DELETED + "=0", selection);
908                 }
909 
910                 if (match == BOOKMARKS_ID) {
911                     // Tack on the ID of the specific bookmark requested
912                     selection = DatabaseUtils.concatenateWhere(selection,
913                             TABLE_BOOKMARKS + "." + Bookmarks._ID + "=?");
914                     selectionArgs = DatabaseUtils.appendSelectionArgs(selectionArgs,
915                             new String[] { Long.toString(ContentUris.parseId(uri)) });
916                 } else if (match == BOOKMARKS_FOLDER_ID) {
917                     // Tack on the ID of the specific folder requested
918                     selection = DatabaseUtils.concatenateWhere(selection,
919                             TABLE_BOOKMARKS + "." + Bookmarks.PARENT + "=?");
920                     selectionArgs = DatabaseUtils.appendSelectionArgs(selectionArgs,
921                             new String[] { Long.toString(ContentUris.parseId(uri)) });
922                 }
923 
924                 Object[] withAccount = getSelectionWithAccounts(uri, selection, selectionArgs);
925                 selection = (String) withAccount[0];
926                 selectionArgs = (String[]) withAccount[1];
927                 boolean hasAccounts = (Boolean) withAccount[2];
928 
929                 // Set a default sort order if one isn't specified
930                 if (TextUtils.isEmpty(sortOrder)) {
931                     if (hasAccounts) {
932                         sortOrder = DEFAULT_BOOKMARKS_SORT_ORDER_SYNC;
933                     } else {
934                         sortOrder = DEFAULT_BOOKMARKS_SORT_ORDER;
935                     }
936                 }
937 
938                 qb.setProjectionMap(BOOKMARKS_PROJECTION_MAP);
939                 qb.setTables(TABLE_BOOKMARKS_JOIN_IMAGES);
940                 break;
941             }
942 
943             case BOOKMARKS_FOLDER: {
944                 // Look for an account
945                 boolean useAccount = false;
946                 String accountType = uri.getQueryParameter(Bookmarks.PARAM_ACCOUNT_TYPE);
947                 String accountName = uri.getQueryParameter(Bookmarks.PARAM_ACCOUNT_NAME);
948                 if (!isNullAccount(accountType) && !isNullAccount(accountName)) {
949                     useAccount = true;
950                 }
951 
952                 qb.setTables(TABLE_BOOKMARKS_JOIN_IMAGES);
953                 String[] args;
954                 String query;
955                 // Set a default sort order if one isn't specified
956                 if (TextUtils.isEmpty(sortOrder)) {
957                     if (useAccount) {
958                         sortOrder = DEFAULT_BOOKMARKS_SORT_ORDER_SYNC;
959                     } else {
960                         sortOrder = DEFAULT_BOOKMARKS_SORT_ORDER;
961                     }
962                 }
963                 if (!useAccount) {
964                     qb.setProjectionMap(BOOKMARKS_PROJECTION_MAP);
965                     String where = Bookmarks.PARENT + "=? AND " + Bookmarks.IS_DELETED + "=0";
966                     where = DatabaseUtils.concatenateWhere(where, selection);
967                     args = new String[] { Long.toString(FIXED_ID_ROOT) };
968                     if (selectionArgs != null) {
969                         args = DatabaseUtils.appendSelectionArgs(args, selectionArgs);
970                     }
971                     query = qb.buildQuery(projection, where, null, null, sortOrder, null);
972                 } else {
973                     qb.setProjectionMap(BOOKMARKS_PROJECTION_MAP);
974                     String where = Bookmarks.ACCOUNT_TYPE + "=? AND " +
975                             Bookmarks.ACCOUNT_NAME + "=? " +
976                             "AND parent = " +
977                             "(SELECT _id FROM " + TABLE_BOOKMARKS + " WHERE " +
978                             ChromeSyncColumns.SERVER_UNIQUE + "=" +
979                             "'" + ChromeSyncColumns.FOLDER_NAME_BOOKMARKS_BAR + "' " +
980                             "AND account_type = ? AND account_name = ?) " +
981                             "AND " + Bookmarks.IS_DELETED + "=0";
982                     where = DatabaseUtils.concatenateWhere(where, selection);
983                     String bookmarksBarQuery = qb.buildQuery(projection,
984                             where, null, null, null, null);
985                     args = new String[] {accountType, accountName,
986                             accountType, accountName};
987                     if (selectionArgs != null) {
988                         args = DatabaseUtils.appendSelectionArgs(args, selectionArgs);
989                     }
990 
991                     where = Bookmarks.ACCOUNT_TYPE + "=? AND " + Bookmarks.ACCOUNT_NAME + "=?" +
992                             " AND " + ChromeSyncColumns.SERVER_UNIQUE + "=?";
993                     where = DatabaseUtils.concatenateWhere(where, selection);
994                     qb.setProjectionMap(OTHER_BOOKMARKS_PROJECTION_MAP);
995                     String otherBookmarksQuery = qb.buildQuery(projection,
996                             where, null, null, null, null);
997 
998                     query = qb.buildUnionQuery(
999                             new String[] { bookmarksBarQuery, otherBookmarksQuery },
1000                             sortOrder, limit);
1001 
1002                     args = DatabaseUtils.appendSelectionArgs(args, new String[] {
1003                             accountType, accountName, ChromeSyncColumns.FOLDER_NAME_OTHER_BOOKMARKS,
1004                             });
1005                     if (selectionArgs != null) {
1006                         args = DatabaseUtils.appendSelectionArgs(args, selectionArgs);
1007                     }
1008                 }
1009 
1010                 Cursor cursor = db.rawQuery(query, args);
1011                 if (cursor != null) {
1012                     cursor.setNotificationUri(getContext().getContentResolver(),
1013                             BrowserContract.AUTHORITY_URI);
1014                 }
1015                 return cursor;
1016             }
1017 
1018             case BOOKMARKS_DEFAULT_FOLDER_ID: {
1019                 String accountName = uri.getQueryParameter(Bookmarks.PARAM_ACCOUNT_NAME);
1020                 String accountType = uri.getQueryParameter(Bookmarks.PARAM_ACCOUNT_TYPE);
1021                 long id = queryDefaultFolderId(accountName, accountType);
1022                 MatrixCursor c = new MatrixCursor(new String[] {Bookmarks._ID});
1023                 c.newRow().add(id);
1024                 return c;
1025             }
1026 
1027             case BOOKMARKS_SUGGESTIONS: {
1028                 return doSuggestQuery(selection, selectionArgs, limit);
1029             }
1030 
1031             case HISTORY_ID: {
1032                 selection = DatabaseUtils.concatenateWhere(selection, TABLE_HISTORY + "._id=?");
1033                 selectionArgs = DatabaseUtils.appendSelectionArgs(selectionArgs,
1034                         new String[] { Long.toString(ContentUris.parseId(uri)) });
1035                 // fall through
1036             }
1037             case HISTORY: {
1038                 filterSearchClient(selectionArgs);
1039                 if (sortOrder == null) {
1040                     sortOrder = DEFAULT_SORT_HISTORY;
1041                 }
1042                 qb.setProjectionMap(HISTORY_PROJECTION_MAP);
1043                 qb.setTables(TABLE_HISTORY_JOIN_IMAGES);
1044                 break;
1045             }
1046 
1047             case SEARCHES_ID: {
1048                 selection = DatabaseUtils.concatenateWhere(selection, TABLE_SEARCHES + "._id=?");
1049                 selectionArgs = DatabaseUtils.appendSelectionArgs(selectionArgs,
1050                         new String[] { Long.toString(ContentUris.parseId(uri)) });
1051                 // fall through
1052             }
1053             case SEARCHES: {
1054                 qb.setTables(TABLE_SEARCHES);
1055                 qb.setProjectionMap(SEARCHES_PROJECTION_MAP);
1056                 break;
1057             }
1058 
1059             case SYNCSTATE: {
1060                 return mSyncHelper.query(db, projection, selection, selectionArgs, sortOrder);
1061             }
1062 
1063             case SYNCSTATE_ID: {
1064                 selection = appendAccountToSelection(uri, selection);
1065                 String selectionWithId =
1066                         (SyncStateContract.Columns._ID + "=" + ContentUris.parseId(uri) + " ")
1067                         + (selection == null ? "" : " AND (" + selection + ")");
1068                 return mSyncHelper.query(db, projection, selectionWithId, selectionArgs, sortOrder);
1069             }
1070 
1071             case IMAGES: {
1072                 qb.setTables(TABLE_IMAGES);
1073                 qb.setProjectionMap(IMAGES_PROJECTION_MAP);
1074                 break;
1075             }
1076 
1077             case LEGACY_ID:
1078             case COMBINED_ID: {
1079                 selection = DatabaseUtils.concatenateWhere(
1080                         selection, Combined._ID + " = CAST(? AS INTEGER)");
1081                 selectionArgs = DatabaseUtils.appendSelectionArgs(selectionArgs,
1082                         new String[] { Long.toString(ContentUris.parseId(uri)) });
1083                 // fall through
1084             }
1085             case LEGACY:
1086             case COMBINED: {
1087                 if ((match == LEGACY || match == LEGACY_ID)
1088                         && projection == null) {
1089                     projection = Browser.HISTORY_PROJECTION;
1090                 }
1091                 String[] args = createCombinedQuery(uri, projection, qb);
1092                 if (selectionArgs == null) {
1093                     selectionArgs = args;
1094                 } else {
1095                     selectionArgs = DatabaseUtils.appendSelectionArgs(args, selectionArgs);
1096                 }
1097                 break;
1098             }
1099 
1100             case SETTINGS: {
1101                 qb.setTables(TABLE_SETTINGS);
1102                 qb.setProjectionMap(SETTINGS_PROJECTION_MAP);
1103                 break;
1104             }
1105 
1106             case THUMBNAILS_ID: {
1107                 selection = DatabaseUtils.concatenateWhere(
1108                         selection, Thumbnails._ID + " = ?");
1109                 selectionArgs = DatabaseUtils.appendSelectionArgs(selectionArgs,
1110                         new String[] { Long.toString(ContentUris.parseId(uri)) });
1111                 // fall through
1112             }
1113             case THUMBNAILS: {
1114                 qb.setTables(TABLE_THUMBNAILS);
1115                 break;
1116             }
1117 
1118             case OMNIBOX_SUGGESTIONS: {
1119                 qb.setTables(VIEW_OMNIBOX_SUGGESTIONS);
1120                 break;
1121             }
1122 
1123             default: {
1124                 throw new UnsupportedOperationException("Unknown URL " + uri.toString());
1125             }
1126         }
1127 
1128         Cursor cursor = qb.query(db, projection, selection, selectionArgs, groupBy,
1129                 null, sortOrder, limit);
1130         cursor.setNotificationUri(getContext().getContentResolver(), BrowserContract.AUTHORITY_URI);
1131         return cursor;
1132     }
1133 
doSuggestQuery(String selection, String[] selectionArgs, String limit)1134     private Cursor doSuggestQuery(String selection, String[] selectionArgs, String limit) {
1135         if (TextUtils.isEmpty(selectionArgs[0])) {
1136             selection = ZERO_QUERY_SUGGEST_SELECTION;
1137             selectionArgs = null;
1138         } else {
1139             String like = selectionArgs[0] + "%";
1140             if (selectionArgs[0].startsWith("http")
1141                     || selectionArgs[0].startsWith("file")) {
1142                 selectionArgs[0] = like;
1143             } else {
1144                 selectionArgs = new String[6];
1145                 selectionArgs[0] = "http://" + like;
1146                 selectionArgs[1] = "http://www." + like;
1147                 selectionArgs[2] = "https://" + like;
1148                 selectionArgs[3] = "https://www." + like;
1149                 // To match against titles.
1150                 selectionArgs[4] = like;
1151                 selectionArgs[5] = like;
1152                 selection = SUGGEST_SELECTION;
1153             }
1154             selection = DatabaseUtils.concatenateWhere(selection,
1155                     Bookmarks.IS_DELETED + "=0 AND " + Bookmarks.IS_FOLDER + "=0");
1156 
1157         }
1158         Cursor c = mOpenHelper.getReadableDatabase().query(TABLE_BOOKMARKS_JOIN_HISTORY,
1159                 SUGGEST_PROJECTION, selection, selectionArgs, null, null,
1160                 null, null);
1161 
1162         return new SuggestionsCursor(c);
1163     }
1164 
createCombinedQuery( Uri uri, String[] projection, SQLiteQueryBuilder qb)1165     private String[] createCombinedQuery(
1166             Uri uri, String[] projection, SQLiteQueryBuilder qb) {
1167         String[] args = null;
1168         StringBuilder whereBuilder = new StringBuilder(128);
1169         whereBuilder.append(Bookmarks.IS_DELETED);
1170         whereBuilder.append(" = 0");
1171         // Look for account info
1172         Object[] withAccount = getSelectionWithAccounts(uri, null, null);
1173         String selection = (String) withAccount[0];
1174         String[] selectionArgs = (String[]) withAccount[1];
1175         if (selection != null) {
1176             whereBuilder.append(" AND " + selection);
1177             if (selectionArgs != null) {
1178                 // We use the selection twice, hence we need to duplicate the args
1179                 args = new String[selectionArgs.length * 2];
1180                 System.arraycopy(selectionArgs, 0, args, 0, selectionArgs.length);
1181                 System.arraycopy(selectionArgs, 0, args, selectionArgs.length,
1182                         selectionArgs.length);
1183             }
1184         }
1185         String where = whereBuilder.toString();
1186         // Build the bookmark subquery for history union subquery
1187         qb.setTables(TABLE_BOOKMARKS);
1188         String subQuery = qb.buildQuery(null, where, null, null, null, null);
1189         // Build the history union subquery
1190         qb.setTables(String.format(FORMAT_COMBINED_JOIN_SUBQUERY_JOIN_IMAGES, subQuery));
1191         qb.setProjectionMap(COMBINED_HISTORY_PROJECTION_MAP);
1192         String historySubQuery = qb.buildQuery(null,
1193                 null, null, null, null, null);
1194         // Build the bookmark union subquery
1195         qb.setTables(TABLE_BOOKMARKS_JOIN_IMAGES);
1196         qb.setProjectionMap(COMBINED_BOOKMARK_PROJECTION_MAP);
1197         where += String.format(" AND %s NOT IN (SELECT %s FROM %s)",
1198                 Combined.URL, History.URL, TABLE_HISTORY);
1199         String bookmarksSubQuery = qb.buildQuery(null, where,
1200                 null, null, null, null);
1201         // Put it all together
1202         String query = qb.buildUnionQuery(
1203                 new String[] {historySubQuery, bookmarksSubQuery},
1204                 null, null);
1205         qb.setTables("(" + query + ")");
1206         qb.setProjectionMap(null);
1207         return args;
1208     }
1209 
deleteBookmarks(String selection, String[] selectionArgs, boolean callerIsSyncAdapter)1210     int deleteBookmarks(String selection, String[] selectionArgs,
1211             boolean callerIsSyncAdapter) {
1212         final SQLiteDatabase db = mOpenHelper.getWritableDatabase();
1213         if (callerIsSyncAdapter) {
1214             return db.delete(TABLE_BOOKMARKS, selection, selectionArgs);
1215         }
1216 
1217         Object[] appendedBookmarks = appendBookmarksIfFolder(selection, selectionArgs);
1218         selection = (String) appendedBookmarks[0];
1219         selectionArgs = (String[]) appendedBookmarks[1];
1220 
1221         ContentValues values = new ContentValues();
1222         values.put(Bookmarks.DATE_MODIFIED, System.currentTimeMillis());
1223         values.put(Bookmarks.IS_DELETED, 1);
1224         return updateBookmarksInTransaction(values, selection, selectionArgs,
1225                 callerIsSyncAdapter);
1226     }
1227 
appendBookmarksIfFolder(String selection, String[] selectionArgs)1228     private Object[] appendBookmarksIfFolder(String selection, String[] selectionArgs) {
1229         final SQLiteDatabase db = mOpenHelper.getReadableDatabase();
1230         final String[] bookmarksProjection = new String[] {
1231                 Bookmarks._ID, // 0
1232                 Bookmarks.IS_FOLDER // 1
1233         };
1234         StringBuilder newSelection = new StringBuilder(selection);
1235         List<String> newSelectionArgs = new ArrayList<String>();
1236 
1237         Cursor cursor = null;
1238         try {
1239             cursor = db.query(TABLE_BOOKMARKS, bookmarksProjection,
1240                     selection, selectionArgs, null, null, null);
1241             if (cursor != null) {
1242                 while (cursor.moveToNext()) {
1243                     String id = Long.toString(cursor.getLong(0));
1244                     newSelectionArgs.add(id);
1245                     if (cursor.getInt(1) != 0) {
1246                         // collect bookmarks in this folder
1247                         Object[] bookmarks = appendBookmarksIfFolder(
1248                                 Bookmarks.PARENT + "=?", new String[] { id });
1249                         String[] bookmarkIds = (String[]) bookmarks[1];
1250                         if (bookmarkIds.length > 0) {
1251                             newSelection.append(" OR " + TABLE_BOOKMARKS + "._id IN (");
1252                             for (String bookmarkId : bookmarkIds) {
1253                                 newSelection.append("?,");
1254                                 newSelectionArgs.add(bookmarkId);
1255                             }
1256                             newSelection.deleteCharAt(newSelection.length() - 1);
1257                             newSelection.append(")");
1258                         }
1259                     }
1260                 }
1261             }
1262         } finally {
1263             if (cursor != null) {
1264                 cursor.close();
1265             }
1266         }
1267 
1268         return new Object[] {
1269                 newSelection.toString(),
1270                 newSelectionArgs.toArray(new String[newSelectionArgs.size()])
1271         };
1272     }
1273 
1274     @Override
deleteInTransaction(Uri uri, String selection, String[] selectionArgs, boolean callerIsSyncAdapter)1275     public int deleteInTransaction(Uri uri, String selection, String[] selectionArgs,
1276             boolean callerIsSyncAdapter) {
1277         final int match = URI_MATCHER.match(uri);
1278         final SQLiteDatabase db = mOpenHelper.getWritableDatabase();
1279         int deleted = 0;
1280         switch (match) {
1281             case BOOKMARKS_ID: {
1282                 selection = DatabaseUtils.concatenateWhere(selection,
1283                         TABLE_BOOKMARKS + "._id=?");
1284                 selectionArgs = DatabaseUtils.appendSelectionArgs(selectionArgs,
1285                         new String[] { Long.toString(ContentUris.parseId(uri)) });
1286                 // fall through
1287             }
1288             case BOOKMARKS: {
1289                 // Look for account info
1290                 Object[] withAccount = getSelectionWithAccounts(uri, selection, selectionArgs);
1291                 selection = (String) withAccount[0];
1292                 selectionArgs = (String[]) withAccount[1];
1293                 deleted = deleteBookmarks(selection, selectionArgs, callerIsSyncAdapter);
1294                 pruneImages();
1295                 if (deleted > 0) {
1296                     refreshWidgets();
1297                 }
1298                 break;
1299             }
1300 
1301             case HISTORY_ID: {
1302                 selection = DatabaseUtils.concatenateWhere(selection, TABLE_HISTORY + "._id=?");
1303                 selectionArgs = DatabaseUtils.appendSelectionArgs(selectionArgs,
1304                         new String[] { Long.toString(ContentUris.parseId(uri)) });
1305                 // fall through
1306             }
1307             case HISTORY: {
1308                 filterSearchClient(selectionArgs);
1309                 deleted = db.delete(TABLE_HISTORY, selection, selectionArgs);
1310                 pruneImages();
1311                 break;
1312             }
1313 
1314             case SEARCHES_ID: {
1315                 selection = DatabaseUtils.concatenateWhere(selection, TABLE_SEARCHES + "._id=?");
1316                 selectionArgs = DatabaseUtils.appendSelectionArgs(selectionArgs,
1317                         new String[] { Long.toString(ContentUris.parseId(uri)) });
1318                 // fall through
1319             }
1320             case SEARCHES: {
1321                 deleted = db.delete(TABLE_SEARCHES, selection, selectionArgs);
1322                 break;
1323             }
1324 
1325             case SYNCSTATE: {
1326                 deleted = mSyncHelper.delete(db, selection, selectionArgs);
1327                 break;
1328             }
1329             case SYNCSTATE_ID: {
1330                 String selectionWithId =
1331                         (SyncStateContract.Columns._ID + "=" + ContentUris.parseId(uri) + " ")
1332                         + (selection == null ? "" : " AND (" + selection + ")");
1333                 deleted = mSyncHelper.delete(db, selectionWithId, selectionArgs);
1334                 break;
1335             }
1336             case LEGACY_ID: {
1337                 selection = DatabaseUtils.concatenateWhere(
1338                         selection, Combined._ID + " = CAST(? AS INTEGER)");
1339                 selectionArgs = DatabaseUtils.appendSelectionArgs(selectionArgs,
1340                         new String[] { Long.toString(ContentUris.parseId(uri)) });
1341                 // fall through
1342             }
1343             case LEGACY: {
1344                 String[] projection = new String[] { Combined._ID,
1345                         Combined.IS_BOOKMARK, Combined.URL };
1346                 SQLiteQueryBuilder qb = new SQLiteQueryBuilder();
1347                 String[] args = createCombinedQuery(uri, projection, qb);
1348                 if (selectionArgs == null) {
1349                     selectionArgs = args;
1350                 } else {
1351                     selectionArgs = DatabaseUtils.appendSelectionArgs(
1352                             args, selectionArgs);
1353                 }
1354                 Cursor c = qb.query(db, projection, selection, selectionArgs,
1355                         null, null, null);
1356                 while (c.moveToNext()) {
1357                     long id = c.getLong(0);
1358                     boolean isBookmark = c.getInt(1) != 0;
1359                     String url = c.getString(2);
1360                     if (isBookmark) {
1361                         deleted += deleteBookmarks(Bookmarks._ID + "=?",
1362                                 new String[] { Long.toString(id) },
1363                                 callerIsSyncAdapter);
1364                         db.delete(TABLE_HISTORY, History.URL + "=?",
1365                                 new String[] { url });
1366                     } else {
1367                         deleted += db.delete(TABLE_HISTORY,
1368                                 Bookmarks._ID + "=?",
1369                                 new String[] { Long.toString(id) });
1370                     }
1371                 }
1372                 c.close();
1373                 break;
1374             }
1375             case THUMBNAILS_ID: {
1376                 selection = DatabaseUtils.concatenateWhere(
1377                         selection, Thumbnails._ID + " = ?");
1378                 selectionArgs = DatabaseUtils.appendSelectionArgs(selectionArgs,
1379                         new String[] { Long.toString(ContentUris.parseId(uri)) });
1380                 // fall through
1381             }
1382             case THUMBNAILS: {
1383                 deleted = db.delete(TABLE_THUMBNAILS, selection, selectionArgs);
1384                 break;
1385             }
1386             default: {
1387                 throw new UnsupportedOperationException("Unknown delete URI " + uri);
1388             }
1389         }
1390         if (deleted > 0) {
1391             postNotifyUri(uri);
1392             if (shouldNotifyLegacy(uri)) {
1393                 postNotifyUri(LEGACY_AUTHORITY_URI);
1394             }
1395         }
1396         return deleted;
1397     }
1398 
queryDefaultFolderId(String accountName, String accountType)1399     long queryDefaultFolderId(String accountName, String accountType) {
1400         if (!isNullAccount(accountName) && !isNullAccount(accountType)) {
1401             final SQLiteDatabase db = mOpenHelper.getReadableDatabase();
1402             Cursor c = db.query(TABLE_BOOKMARKS, new String[] { Bookmarks._ID },
1403                     ChromeSyncColumns.SERVER_UNIQUE + " = ?" +
1404                     " AND account_type = ? AND account_name = ?",
1405                     new String[] { ChromeSyncColumns.FOLDER_NAME_BOOKMARKS_BAR,
1406                     accountType, accountName }, null, null, null);
1407             try {
1408                 if (c.moveToFirst()) {
1409                     return c.getLong(0);
1410                 }
1411             } finally {
1412                 c.close();
1413             }
1414         }
1415         return FIXED_ID_ROOT;
1416     }
1417 
1418     @Override
insertInTransaction(Uri uri, ContentValues values, boolean callerIsSyncAdapter)1419     public Uri insertInTransaction(Uri uri, ContentValues values, boolean callerIsSyncAdapter) {
1420         int match = URI_MATCHER.match(uri);
1421         final SQLiteDatabase db = mOpenHelper.getWritableDatabase();
1422         long id = -1;
1423         if (match == LEGACY) {
1424             // Intercept and route to the correct table
1425             Integer bookmark = values.getAsInteger(BookmarkColumns.BOOKMARK);
1426             values.remove(BookmarkColumns.BOOKMARK);
1427             if (bookmark == null || bookmark == 0) {
1428                 match = HISTORY;
1429             } else {
1430                 match = BOOKMARKS;
1431                 values.remove(BookmarkColumns.DATE);
1432                 values.remove(BookmarkColumns.VISITS);
1433                 values.remove(BookmarkColumns.USER_ENTERED);
1434                 values.put(Bookmarks.IS_FOLDER, 0);
1435             }
1436         }
1437         switch (match) {
1438             case BOOKMARKS: {
1439                 // Mark rows dirty if they're not coming from a sync adapter
1440                 if (!callerIsSyncAdapter) {
1441                     long now = System.currentTimeMillis();
1442                     values.put(Bookmarks.DATE_CREATED, now);
1443                     values.put(Bookmarks.DATE_MODIFIED, now);
1444                     values.put(Bookmarks.DIRTY, 1);
1445 
1446                     boolean hasAccounts = values.containsKey(Bookmarks.ACCOUNT_TYPE)
1447                             || values.containsKey(Bookmarks.ACCOUNT_NAME);
1448                     String accountType = values
1449                             .getAsString(Bookmarks.ACCOUNT_TYPE);
1450                     String accountName = values
1451                             .getAsString(Bookmarks.ACCOUNT_NAME);
1452                     boolean hasParent = values.containsKey(Bookmarks.PARENT);
1453                     if (hasParent && hasAccounts) {
1454                         // Let's make sure it's valid
1455                         long parentId = values.getAsLong(Bookmarks.PARENT);
1456                         hasParent = isValidParent(
1457                                 accountType, accountName, parentId);
1458                     } else if (hasParent && !hasAccounts) {
1459                         long parentId = values.getAsLong(Bookmarks.PARENT);
1460                         hasParent = setParentValues(parentId, values);
1461                     }
1462 
1463                     // If no parent is set default to the "Bookmarks Bar" folder
1464                     if (!hasParent) {
1465                         values.put(Bookmarks.PARENT,
1466                                 queryDefaultFolderId(accountName, accountType));
1467                     }
1468                 }
1469 
1470                 // If no position is requested put the bookmark at the beginning of the list
1471                 if (!values.containsKey(Bookmarks.POSITION)) {
1472                     values.put(Bookmarks.POSITION, Long.toString(Long.MIN_VALUE));
1473                 }
1474 
1475                 // Extract out the image values so they can be inserted into the images table
1476                 String url = values.getAsString(Bookmarks.URL);
1477                 ContentValues imageValues = extractImageValues(values, url);
1478                 Boolean isFolder = values.getAsBoolean(Bookmarks.IS_FOLDER);
1479                 if ((isFolder == null || !isFolder)
1480                         && imageValues != null && !TextUtils.isEmpty(url)) {
1481                     int count = db.update(TABLE_IMAGES, imageValues, Images.URL + "=?",
1482                             new String[] { url });
1483                     if (count == 0) {
1484                         db.insertOrThrow(TABLE_IMAGES, Images.FAVICON, imageValues);
1485                     }
1486                 }
1487 
1488                 id = db.insertOrThrow(TABLE_BOOKMARKS, Bookmarks.DIRTY, values);
1489                 refreshWidgets();
1490                 break;
1491             }
1492 
1493             case HISTORY: {
1494                 // If no created time is specified set it to now
1495                 if (!values.containsKey(History.DATE_CREATED)) {
1496                     values.put(History.DATE_CREATED, System.currentTimeMillis());
1497                 }
1498                 String url = values.getAsString(History.URL);
1499                 url = filterSearchClient(url);
1500                 values.put(History.URL, url);
1501 
1502                 // Extract out the image values so they can be inserted into the images table
1503                 ContentValues imageValues = extractImageValues(values,
1504                         values.getAsString(History.URL));
1505                 if (imageValues != null) {
1506                     db.insertOrThrow(TABLE_IMAGES, Images.FAVICON, imageValues);
1507                 }
1508 
1509                 id = db.insertOrThrow(TABLE_HISTORY, History.VISITS, values);
1510                 break;
1511             }
1512 
1513             case SEARCHES: {
1514                 id = insertSearchesInTransaction(db, values);
1515                 break;
1516             }
1517 
1518             case SYNCSTATE: {
1519                 id = mSyncHelper.insert(db, values);
1520                 break;
1521             }
1522 
1523             case SETTINGS: {
1524                 id = 0;
1525                 insertSettingsInTransaction(db, values);
1526                 break;
1527             }
1528 
1529             case THUMBNAILS: {
1530                 id = db.replaceOrThrow(TABLE_THUMBNAILS, null, values);
1531                 break;
1532             }
1533 
1534             default: {
1535                 throw new UnsupportedOperationException("Unknown insert URI " + uri);
1536             }
1537         }
1538 
1539         if (id >= 0) {
1540             postNotifyUri(uri);
1541             if (shouldNotifyLegacy(uri)) {
1542                 postNotifyUri(LEGACY_AUTHORITY_URI);
1543             }
1544             return ContentUris.withAppendedId(uri, id);
1545         } else {
1546             return null;
1547         }
1548     }
1549 
getAccountNameAndType(long id)1550     private String[] getAccountNameAndType(long id) {
1551         if (id <= 0) {
1552             return null;
1553         }
1554         Uri uri = ContentUris.withAppendedId(Bookmarks.CONTENT_URI, id);
1555         Cursor c = query(uri,
1556                 new String[] { Bookmarks.ACCOUNT_NAME, Bookmarks.ACCOUNT_TYPE },
1557                 null, null, null);
1558         try {
1559             if (c.moveToFirst()) {
1560                 String parentName = c.getString(0);
1561                 String parentType = c.getString(1);
1562                 return new String[] { parentName, parentType };
1563             }
1564             return null;
1565         } finally {
1566             c.close();
1567         }
1568     }
1569 
setParentValues(long parentId, ContentValues values)1570     private boolean setParentValues(long parentId, ContentValues values) {
1571         String[] parent = getAccountNameAndType(parentId);
1572         if (parent == null) {
1573             return false;
1574         }
1575         values.put(Bookmarks.ACCOUNT_NAME, parent[0]);
1576         values.put(Bookmarks.ACCOUNT_TYPE, parent[1]);
1577         return true;
1578     }
1579 
isValidParent(String accountType, String accountName, long parentId)1580     private boolean isValidParent(String accountType, String accountName,
1581             long parentId) {
1582         String[] parent = getAccountNameAndType(parentId);
1583         if (parent != null
1584                 && TextUtils.equals(accountName, parent[0])
1585                 && TextUtils.equals(accountType, parent[1])) {
1586             return true;
1587         }
1588         return false;
1589     }
1590 
filterSearchClient(String[] selectionArgs)1591     private void filterSearchClient(String[] selectionArgs) {
1592         if (selectionArgs != null) {
1593             for (int i = 0; i < selectionArgs.length; i++) {
1594                 selectionArgs[i] = filterSearchClient(selectionArgs[i]);
1595             }
1596         }
1597     }
1598 
1599     // Filters out the client= param for search urls
filterSearchClient(String url)1600     private String filterSearchClient(String url) {
1601         // remove "client" before updating it to the history so that it wont
1602         // show up in the auto-complete list.
1603         int index = url.indexOf("client=");
1604         if (index > 0 && url.contains(".google.")) {
1605             int end = url.indexOf('&', index);
1606             if (end > 0) {
1607                 url = url.substring(0, index)
1608                         .concat(url.substring(end + 1));
1609             } else {
1610                 // the url.charAt(index-1) should be either '?' or '&'
1611                 url = url.substring(0, index-1);
1612             }
1613         }
1614         return url;
1615     }
1616 
1617     /**
1618      * Searches are unique, so perform an UPSERT manually since SQLite doesn't support them.
1619      */
insertSearchesInTransaction(SQLiteDatabase db, ContentValues values)1620     private long insertSearchesInTransaction(SQLiteDatabase db, ContentValues values) {
1621         String search = values.getAsString(Searches.SEARCH);
1622         if (TextUtils.isEmpty(search)) {
1623             throw new IllegalArgumentException("Must include the SEARCH field");
1624         }
1625         Cursor cursor = null;
1626         try {
1627             cursor = db.query(TABLE_SEARCHES, new String[] { Searches._ID },
1628                     Searches.SEARCH + "=?", new String[] { search }, null, null, null);
1629             if (cursor.moveToNext()) {
1630                 long id = cursor.getLong(0);
1631                 db.update(TABLE_SEARCHES, values, Searches._ID + "=?",
1632                         new String[] { Long.toString(id) });
1633                 return id;
1634             } else {
1635                 return db.insertOrThrow(TABLE_SEARCHES, Searches.SEARCH, values);
1636             }
1637         } finally {
1638             if (cursor != null) cursor.close();
1639         }
1640     }
1641 
1642     /**
1643      * Settings are unique, so perform an UPSERT manually since SQLite doesn't support them.
1644      */
insertSettingsInTransaction(SQLiteDatabase db, ContentValues values)1645     private long insertSettingsInTransaction(SQLiteDatabase db, ContentValues values) {
1646         String key = values.getAsString(Settings.KEY);
1647         if (TextUtils.isEmpty(key)) {
1648             throw new IllegalArgumentException("Must include the KEY field");
1649         }
1650         String[] keyArray = new String[] { key };
1651         Cursor cursor = null;
1652         try {
1653             cursor = db.query(TABLE_SETTINGS, new String[] { Settings.KEY },
1654                     Settings.KEY + "=?", keyArray, null, null, null);
1655             if (cursor.moveToNext()) {
1656                 long id = cursor.getLong(0);
1657                 db.update(TABLE_SETTINGS, values, Settings.KEY + "=?", keyArray);
1658                 return id;
1659             } else {
1660                 return db.insertOrThrow(TABLE_SETTINGS, Settings.VALUE, values);
1661             }
1662         } finally {
1663             if (cursor != null) cursor.close();
1664         }
1665     }
1666 
1667     @Override
updateInTransaction(Uri uri, ContentValues values, String selection, String[] selectionArgs, boolean callerIsSyncAdapter)1668     public int updateInTransaction(Uri uri, ContentValues values, String selection,
1669             String[] selectionArgs, boolean callerIsSyncAdapter) {
1670         int match = URI_MATCHER.match(uri);
1671         final SQLiteDatabase db = mOpenHelper.getWritableDatabase();
1672         if (match == LEGACY || match == LEGACY_ID) {
1673             // Intercept and route to the correct table
1674             Integer bookmark = values.getAsInteger(BookmarkColumns.BOOKMARK);
1675             values.remove(BookmarkColumns.BOOKMARK);
1676             if (bookmark == null || bookmark == 0) {
1677                 if (match == LEGACY) {
1678                     match = HISTORY;
1679                 } else {
1680                     match = HISTORY_ID;
1681                 }
1682             } else {
1683                 if (match == LEGACY) {
1684                     match = BOOKMARKS;
1685                 } else {
1686                     match = BOOKMARKS_ID;
1687                 }
1688                 values.remove(BookmarkColumns.DATE);
1689                 values.remove(BookmarkColumns.VISITS);
1690                 values.remove(BookmarkColumns.USER_ENTERED);
1691             }
1692         }
1693         int modified = 0;
1694         switch (match) {
1695             case BOOKMARKS_ID: {
1696                 selection = DatabaseUtils.concatenateWhere(selection,
1697                         TABLE_BOOKMARKS + "._id=?");
1698                 selectionArgs = DatabaseUtils.appendSelectionArgs(selectionArgs,
1699                         new String[] { Long.toString(ContentUris.parseId(uri)) });
1700                 // fall through
1701             }
1702             case BOOKMARKS: {
1703                 Object[] withAccount = getSelectionWithAccounts(uri, selection, selectionArgs);
1704                 selection = (String) withAccount[0];
1705                 selectionArgs = (String[]) withAccount[1];
1706                 modified = updateBookmarksInTransaction(values, selection, selectionArgs,
1707                         callerIsSyncAdapter);
1708                 if (modified > 0) {
1709                     refreshWidgets();
1710                 }
1711                 break;
1712             }
1713 
1714             case HISTORY_ID: {
1715                 selection = DatabaseUtils.concatenateWhere(selection, TABLE_HISTORY + "._id=?");
1716                 selectionArgs = DatabaseUtils.appendSelectionArgs(selectionArgs,
1717                         new String[] { Long.toString(ContentUris.parseId(uri)) });
1718                 // fall through
1719             }
1720             case HISTORY: {
1721                 modified = updateHistoryInTransaction(values, selection, selectionArgs);
1722                 break;
1723             }
1724 
1725             case SYNCSTATE: {
1726                 modified = mSyncHelper.update(mDb, values,
1727                         appendAccountToSelection(uri, selection), selectionArgs);
1728                 break;
1729             }
1730 
1731             case SYNCSTATE_ID: {
1732                 selection = appendAccountToSelection(uri, selection);
1733                 String selectionWithId =
1734                         (SyncStateContract.Columns._ID + "=" + ContentUris.parseId(uri) + " ")
1735                         + (selection == null ? "" : " AND (" + selection + ")");
1736                 modified = mSyncHelper.update(mDb, values,
1737                         selectionWithId, selectionArgs);
1738                 break;
1739             }
1740 
1741             case IMAGES: {
1742                 String url = values.getAsString(Images.URL);
1743                 if (TextUtils.isEmpty(url)) {
1744                     throw new IllegalArgumentException("Images.URL is required");
1745                 }
1746                 if (!shouldUpdateImages(db, url, values)) {
1747                     return 0;
1748                 }
1749                 int count = db.update(TABLE_IMAGES, values, Images.URL + "=?",
1750                         new String[] { url });
1751                 if (count == 0) {
1752                     db.insertOrThrow(TABLE_IMAGES, Images.FAVICON, values);
1753                     count = 1;
1754                 }
1755                 // Only favicon is exposed in the public API. If we updated
1756                 // the thumbnail or touch icon don't bother notifying the
1757                 // legacy authority since it can't read it anyway.
1758                 boolean updatedLegacy = false;
1759                 if (getUrlCount(db, TABLE_BOOKMARKS, url) > 0) {
1760                     postNotifyUri(Bookmarks.CONTENT_URI);
1761                     updatedLegacy = values.containsKey(Images.FAVICON);
1762                     refreshWidgets();
1763                 }
1764                 if (getUrlCount(db, TABLE_HISTORY, url) > 0) {
1765                     postNotifyUri(History.CONTENT_URI);
1766                     updatedLegacy = values.containsKey(Images.FAVICON);
1767                 }
1768                 if (pruneImages() > 0 || updatedLegacy) {
1769                     postNotifyUri(LEGACY_AUTHORITY_URI);
1770                 }
1771                 // Even though we may be calling notifyUri on Bookmarks, don't
1772                 // sync to network as images aren't synced. Otherwise this
1773                 // unnecessarily triggers a bookmark sync.
1774                 mSyncToNetwork = false;
1775                 return count;
1776             }
1777 
1778             case SEARCHES: {
1779                 modified = db.update(TABLE_SEARCHES, values, selection, selectionArgs);
1780                 break;
1781             }
1782 
1783             case ACCOUNTS: {
1784                 Account[] accounts = AccountManager.get(getContext()).getAccounts();
1785                 mSyncHelper.onAccountsChanged(mDb, accounts);
1786                 break;
1787             }
1788 
1789             case THUMBNAILS: {
1790                 modified = db.update(TABLE_THUMBNAILS, values,
1791                         selection, selectionArgs);
1792                 break;
1793             }
1794 
1795             default: {
1796                 throw new UnsupportedOperationException("Unknown update URI " + uri);
1797             }
1798         }
1799         pruneImages();
1800         if (modified > 0) {
1801             postNotifyUri(uri);
1802             if (shouldNotifyLegacy(uri)) {
1803                 postNotifyUri(LEGACY_AUTHORITY_URI);
1804             }
1805         }
1806         return modified;
1807     }
1808 
1809     // We want to avoid sending out more URI notifications than we have to
1810     // Thus, we check to see if the images we are about to store are already there
1811     // This is used because things like a site's favion or touch icon is rarely
1812     // changed, but the browser tries to update it every time the page loads.
1813     // Without this, we will always send out 3 URI notifications per page load.
1814     // With this, that drops to 0 or 1, depending on if the thumbnail changed.
shouldUpdateImages( SQLiteDatabase db, String url, ContentValues values)1815     private boolean shouldUpdateImages(
1816             SQLiteDatabase db, String url, ContentValues values) {
1817         final String[] projection = new String[] {
1818                 Images.FAVICON,
1819                 Images.THUMBNAIL,
1820                 Images.TOUCH_ICON,
1821         };
1822         Cursor cursor = db.query(TABLE_IMAGES, projection, Images.URL + "=?",
1823                 new String[] { url }, null, null, null);
1824         byte[] nfavicon = values.getAsByteArray(Images.FAVICON);
1825         byte[] nthumb = values.getAsByteArray(Images.THUMBNAIL);
1826         byte[] ntouch = values.getAsByteArray(Images.TOUCH_ICON);
1827         byte[] cfavicon = null;
1828         byte[] cthumb = null;
1829         byte[] ctouch = null;
1830         try {
1831             if (cursor.getCount() <= 0) {
1832                 return nfavicon != null || nthumb != null || ntouch != null;
1833             }
1834             while (cursor.moveToNext()) {
1835                 if (nfavicon != null) {
1836                     cfavicon = cursor.getBlob(0);
1837                     if (!Arrays.equals(nfavicon, cfavicon)) {
1838                         return true;
1839                     }
1840                 }
1841                 if (nthumb != null) {
1842                     cthumb = cursor.getBlob(1);
1843                     if (!Arrays.equals(nthumb, cthumb)) {
1844                         return true;
1845                     }
1846                 }
1847                 if (ntouch != null) {
1848                     ctouch = cursor.getBlob(2);
1849                     if (!Arrays.equals(ntouch, ctouch)) {
1850                         return true;
1851                     }
1852                 }
1853             }
1854         } finally {
1855             cursor.close();
1856         }
1857         return false;
1858     }
1859 
getUrlCount(SQLiteDatabase db, String table, String url)1860     int getUrlCount(SQLiteDatabase db, String table, String url) {
1861         Cursor c = db.query(table, new String[] { "COUNT(*)" },
1862                 "url = ?", new String[] { url }, null, null, null);
1863         try {
1864             int count = 0;
1865             if (c.moveToFirst()) {
1866                 count = c.getInt(0);
1867             }
1868             return count;
1869         } finally {
1870             c.close();
1871         }
1872     }
1873 
1874     /**
1875      * Does a query to find the matching bookmarks and updates each one with the provided values.
1876      */
updateBookmarksInTransaction(ContentValues values, String selection, String[] selectionArgs, boolean callerIsSyncAdapter)1877     int updateBookmarksInTransaction(ContentValues values, String selection,
1878             String[] selectionArgs, boolean callerIsSyncAdapter) {
1879         int count = 0;
1880         final SQLiteDatabase db = mOpenHelper.getWritableDatabase();
1881         final String[] bookmarksProjection = new String[] {
1882                 Bookmarks._ID, // 0
1883                 Bookmarks.VERSION, // 1
1884                 Bookmarks.URL, // 2
1885                 Bookmarks.TITLE, // 3
1886                 Bookmarks.IS_FOLDER, // 4
1887                 Bookmarks.ACCOUNT_NAME, // 5
1888                 Bookmarks.ACCOUNT_TYPE, // 6
1889         };
1890         Cursor cursor = db.query(TABLE_BOOKMARKS, bookmarksProjection,
1891                 selection, selectionArgs, null, null, null);
1892         boolean updatingParent = values.containsKey(Bookmarks.PARENT);
1893         String parentAccountName = null;
1894         String parentAccountType = null;
1895         if (updatingParent) {
1896             long parent = values.getAsLong(Bookmarks.PARENT);
1897             Cursor c = db.query(TABLE_BOOKMARKS, new String[] {
1898                     Bookmarks.ACCOUNT_NAME, Bookmarks.ACCOUNT_TYPE},
1899                     "_id = ?", new String[] { Long.toString(parent) },
1900                     null, null, null);
1901             if (c.moveToFirst()) {
1902                 parentAccountName = c.getString(0);
1903                 parentAccountType = c.getString(1);
1904             }
1905             c.close();
1906         } else if (values.containsKey(Bookmarks.ACCOUNT_NAME)
1907                 || values.containsKey(Bookmarks.ACCOUNT_TYPE)) {
1908             // TODO: Implement if needed (no one needs this yet)
1909         }
1910         try {
1911             String[] args = new String[1];
1912             // Mark the bookmark dirty if the caller isn't a sync adapter
1913             if (!callerIsSyncAdapter) {
1914                 values.put(Bookmarks.DATE_MODIFIED, System.currentTimeMillis());
1915                 values.put(Bookmarks.DIRTY, 1);
1916             }
1917 
1918             boolean updatingUrl = values.containsKey(Bookmarks.URL);
1919             String url = null;
1920             if (updatingUrl) {
1921                 url = values.getAsString(Bookmarks.URL);
1922             }
1923             ContentValues imageValues = extractImageValues(values, url);
1924 
1925             while (cursor.moveToNext()) {
1926                 long id = cursor.getLong(0);
1927                 args[0] = Long.toString(id);
1928                 String accountName = cursor.getString(5);
1929                 String accountType = cursor.getString(6);
1930                 // If we are updating the parent and either the account name or
1931                 // type do not match that of the new parent
1932                 if (updatingParent
1933                         && (!TextUtils.equals(accountName, parentAccountName)
1934                         || !TextUtils.equals(accountType, parentAccountType))) {
1935                     // Parent is a different account
1936                     // First, insert a new bookmark/folder with the new account
1937                     // Then, if this is a folder, reparent all it's children
1938                     // Finally, delete the old bookmark/folder
1939                     ContentValues newValues = valuesFromCursor(cursor);
1940                     newValues.putAll(values);
1941                     newValues.remove(Bookmarks._ID);
1942                     newValues.remove(Bookmarks.VERSION);
1943                     newValues.put(Bookmarks.ACCOUNT_NAME, parentAccountName);
1944                     newValues.put(Bookmarks.ACCOUNT_TYPE, parentAccountType);
1945                     Uri insertUri = insertInTransaction(Bookmarks.CONTENT_URI,
1946                             newValues, callerIsSyncAdapter);
1947                     long newId = ContentUris.parseId(insertUri);
1948                     if (cursor.getInt(4) != 0) {
1949                         // This is a folder, reparent
1950                         ContentValues updateChildren = new ContentValues(1);
1951                         updateChildren.put(Bookmarks.PARENT, newId);
1952                         count += updateBookmarksInTransaction(updateChildren,
1953                                 Bookmarks.PARENT + "=?", new String[] {
1954                                 Long.toString(id)}, callerIsSyncAdapter);
1955                     }
1956                     // Now, delete the old one
1957                     Uri uri = ContentUris.withAppendedId(Bookmarks.CONTENT_URI, id);
1958                     deleteInTransaction(uri, null, null, callerIsSyncAdapter);
1959                     count += 1;
1960                 } else {
1961                     if (!callerIsSyncAdapter) {
1962                         // increase the local version for non-sync changes
1963                         values.put(Bookmarks.VERSION, cursor.getLong(1) + 1);
1964                     }
1965                     count += db.update(TABLE_BOOKMARKS, values, "_id=?", args);
1966                 }
1967 
1968                 // Update the images over in their table
1969                 if (imageValues != null) {
1970                     if (!updatingUrl) {
1971                         url = cursor.getString(2);
1972                         imageValues.put(Images.URL, url);
1973                     }
1974 
1975                     if (!TextUtils.isEmpty(url)) {
1976                         args[0] = url;
1977                         if (db.update(TABLE_IMAGES, imageValues, Images.URL + "=?", args) == 0) {
1978                             db.insert(TABLE_IMAGES, Images.FAVICON, imageValues);
1979                         }
1980                     }
1981                 }
1982             }
1983         } finally {
1984             if (cursor != null) cursor.close();
1985         }
1986         return count;
1987     }
1988 
valuesFromCursor(Cursor c)1989     ContentValues valuesFromCursor(Cursor c) {
1990         int count = c.getColumnCount();
1991         ContentValues values = new ContentValues(count);
1992         String[] colNames = c.getColumnNames();
1993         for (int i = 0; i < count; i++) {
1994             switch (c.getType(i)) {
1995             case Cursor.FIELD_TYPE_BLOB:
1996                 values.put(colNames[i], c.getBlob(i));
1997                 break;
1998             case Cursor.FIELD_TYPE_FLOAT:
1999                 values.put(colNames[i], c.getFloat(i));
2000                 break;
2001             case Cursor.FIELD_TYPE_INTEGER:
2002                 values.put(colNames[i], c.getLong(i));
2003                 break;
2004             case Cursor.FIELD_TYPE_STRING:
2005                 values.put(colNames[i], c.getString(i));
2006                 break;
2007             }
2008         }
2009         return values;
2010     }
2011 
2012     /**
2013      * Does a query to find the matching bookmarks and updates each one with the provided values.
2014      */
updateHistoryInTransaction(ContentValues values, String selection, String[] selectionArgs)2015     int updateHistoryInTransaction(ContentValues values, String selection, String[] selectionArgs) {
2016         int count = 0;
2017         final SQLiteDatabase db = mOpenHelper.getWritableDatabase();
2018         filterSearchClient(selectionArgs);
2019         Cursor cursor = query(History.CONTENT_URI,
2020                 new String[] { History._ID, History.URL },
2021                 selection, selectionArgs, null);
2022         try {
2023             String[] args = new String[1];
2024 
2025             boolean updatingUrl = values.containsKey(History.URL);
2026             String url = null;
2027             if (updatingUrl) {
2028                 url = filterSearchClient(values.getAsString(History.URL));
2029                 values.put(History.URL, url);
2030             }
2031             ContentValues imageValues = extractImageValues(values, url);
2032 
2033             while (cursor.moveToNext()) {
2034                 args[0] = cursor.getString(0);
2035                 count += db.update(TABLE_HISTORY, values, "_id=?", args);
2036 
2037                 // Update the images over in their table
2038                 if (imageValues != null) {
2039                     if (!updatingUrl) {
2040                         url = cursor.getString(1);
2041                         imageValues.put(Images.URL, url);
2042                     }
2043                     args[0] = url;
2044                     if (db.update(TABLE_IMAGES, imageValues, Images.URL + "=?", args) == 0) {
2045                         db.insert(TABLE_IMAGES, Images.FAVICON, imageValues);
2046                     }
2047                 }
2048             }
2049         } finally {
2050             if (cursor != null) cursor.close();
2051         }
2052         return count;
2053     }
2054 
appendAccountToSelection(Uri uri, String selection)2055     String appendAccountToSelection(Uri uri, String selection) {
2056         final String accountName = uri.getQueryParameter(RawContacts.ACCOUNT_NAME);
2057         final String accountType = uri.getQueryParameter(RawContacts.ACCOUNT_TYPE);
2058 
2059         final boolean partialUri = TextUtils.isEmpty(accountName) ^ TextUtils.isEmpty(accountType);
2060         if (partialUri) {
2061             // Throw when either account is incomplete
2062             throw new IllegalArgumentException(
2063                     "Must specify both or neither of ACCOUNT_NAME and ACCOUNT_TYPE for " + uri);
2064         }
2065 
2066         // Accounts are valid by only checking one parameter, since we've
2067         // already ruled out partial accounts.
2068         final boolean validAccount = !TextUtils.isEmpty(accountName);
2069         if (validAccount) {
2070             StringBuilder selectionSb = new StringBuilder(RawContacts.ACCOUNT_NAME + "="
2071                     + DatabaseUtils.sqlEscapeString(accountName) + " AND "
2072                     + RawContacts.ACCOUNT_TYPE + "="
2073                     + DatabaseUtils.sqlEscapeString(accountType));
2074             if (!TextUtils.isEmpty(selection)) {
2075                 selectionSb.append(" AND (");
2076                 selectionSb.append(selection);
2077                 selectionSb.append(')');
2078             }
2079             return selectionSb.toString();
2080         } else {
2081             return selection;
2082         }
2083     }
2084 
extractImageValues(ContentValues values, String url)2085     ContentValues extractImageValues(ContentValues values, String url) {
2086         ContentValues imageValues = null;
2087         // favicon
2088         if (values.containsKey(Bookmarks.FAVICON)) {
2089             imageValues = new ContentValues();
2090             imageValues.put(Images.FAVICON, values.getAsByteArray(Bookmarks.FAVICON));
2091             values.remove(Bookmarks.FAVICON);
2092         }
2093 
2094         // thumbnail
2095         if (values.containsKey(Bookmarks.THUMBNAIL)) {
2096             if (imageValues == null) {
2097                 imageValues = new ContentValues();
2098             }
2099             imageValues.put(Images.THUMBNAIL, values.getAsByteArray(Bookmarks.THUMBNAIL));
2100             values.remove(Bookmarks.THUMBNAIL);
2101         }
2102 
2103         // touch icon
2104         if (values.containsKey(Bookmarks.TOUCH_ICON)) {
2105             if (imageValues == null) {
2106                 imageValues = new ContentValues();
2107             }
2108             imageValues.put(Images.TOUCH_ICON, values.getAsByteArray(Bookmarks.TOUCH_ICON));
2109             values.remove(Bookmarks.TOUCH_ICON);
2110         }
2111 
2112         if (imageValues != null) {
2113             imageValues.put(Images.URL,  url);
2114         }
2115         return imageValues;
2116     }
2117 
pruneImages()2118     int pruneImages() {
2119         final SQLiteDatabase db = mOpenHelper.getWritableDatabase();
2120         return db.delete(TABLE_IMAGES, IMAGE_PRUNE, null);
2121     }
2122 
shouldNotifyLegacy(Uri uri)2123     boolean shouldNotifyLegacy(Uri uri) {
2124         if (uri.getPathSegments().contains("history")
2125                 || uri.getPathSegments().contains("bookmarks")
2126                 || uri.getPathSegments().contains("searches")) {
2127             return true;
2128         }
2129         return false;
2130     }
2131 
2132     @Override
syncToNetwork(Uri uri)2133     protected boolean syncToNetwork(Uri uri) {
2134         if (BrowserContract.AUTHORITY.equals(uri.getAuthority())
2135                 && uri.getPathSegments().contains("bookmarks")) {
2136             return mSyncToNetwork;
2137         }
2138         if (LEGACY_AUTHORITY.equals(uri.getAuthority())) {
2139             // Allow for 3rd party sync adapters
2140             return true;
2141         }
2142         return false;
2143     }
2144 
2145     static class SuggestionsCursor extends AbstractCursor {
2146         private static final int ID_INDEX = 0;
2147         private static final int URL_INDEX = 1;
2148         private static final int TITLE_INDEX = 2;
2149         private static final int ICON_INDEX = 3;
2150         private static final int LAST_ACCESS_TIME_INDEX = 4;
2151         // shared suggestion array index, make sure to match COLUMNS
2152         private static final int SUGGEST_COLUMN_INTENT_ACTION_ID = 1;
2153         private static final int SUGGEST_COLUMN_INTENT_DATA_ID = 2;
2154         private static final int SUGGEST_COLUMN_TEXT_1_ID = 3;
2155         private static final int SUGGEST_COLUMN_TEXT_2_TEXT_ID = 4;
2156         private static final int SUGGEST_COLUMN_TEXT_2_URL_ID = 5;
2157         private static final int SUGGEST_COLUMN_ICON_1_ID = 6;
2158         private static final int SUGGEST_COLUMN_LAST_ACCESS_HINT_ID = 7;
2159 
2160         // shared suggestion columns
2161         private static final String[] COLUMNS = new String[] {
2162                 BaseColumns._ID,
2163                 SearchManager.SUGGEST_COLUMN_INTENT_ACTION,
2164                 SearchManager.SUGGEST_COLUMN_INTENT_DATA,
2165                 SearchManager.SUGGEST_COLUMN_TEXT_1,
2166                 SearchManager.SUGGEST_COLUMN_TEXT_2,
2167                 SearchManager.SUGGEST_COLUMN_TEXT_2_URL,
2168                 SearchManager.SUGGEST_COLUMN_ICON_1,
2169                 SearchManager.SUGGEST_COLUMN_LAST_ACCESS_HINT};
2170 
2171         private final Cursor mSource;
2172 
SuggestionsCursor(Cursor cursor)2173         public SuggestionsCursor(Cursor cursor) {
2174             mSource = cursor;
2175         }
2176 
2177         @Override
getColumnNames()2178         public String[] getColumnNames() {
2179             return COLUMNS;
2180         }
2181 
2182         @Override
getString(int columnIndex)2183         public String getString(int columnIndex) {
2184             switch (columnIndex) {
2185             case ID_INDEX:
2186                 return mSource.getString(columnIndex);
2187             case SUGGEST_COLUMN_INTENT_ACTION_ID:
2188                 return Intent.ACTION_VIEW;
2189             case SUGGEST_COLUMN_INTENT_DATA_ID:
2190                 return mSource.getString(URL_INDEX);
2191             case SUGGEST_COLUMN_TEXT_2_TEXT_ID:
2192             case SUGGEST_COLUMN_TEXT_2_URL_ID:
2193                 return UrlUtils.stripUrl(mSource.getString(URL_INDEX));
2194             case SUGGEST_COLUMN_TEXT_1_ID:
2195                 return mSource.getString(TITLE_INDEX);
2196             case SUGGEST_COLUMN_ICON_1_ID:
2197                 return mSource.getString(ICON_INDEX);
2198             case SUGGEST_COLUMN_LAST_ACCESS_HINT_ID:
2199                 return mSource.getString(LAST_ACCESS_TIME_INDEX);
2200             }
2201             return null;
2202         }
2203 
2204         @Override
getCount()2205         public int getCount() {
2206             return mSource.getCount();
2207         }
2208 
2209         @Override
getDouble(int column)2210         public double getDouble(int column) {
2211             throw new UnsupportedOperationException();
2212         }
2213 
2214         @Override
getFloat(int column)2215         public float getFloat(int column) {
2216             throw new UnsupportedOperationException();
2217         }
2218 
2219         @Override
getInt(int column)2220         public int getInt(int column) {
2221             throw new UnsupportedOperationException();
2222         }
2223 
2224         @Override
getLong(int column)2225         public long getLong(int column) {
2226             switch (column) {
2227             case ID_INDEX:
2228                 return mSource.getLong(ID_INDEX);
2229             case SUGGEST_COLUMN_LAST_ACCESS_HINT_ID:
2230                 return mSource.getLong(LAST_ACCESS_TIME_INDEX);
2231             }
2232             throw new UnsupportedOperationException();
2233         }
2234 
2235         @Override
getShort(int column)2236         public short getShort(int column) {
2237             throw new UnsupportedOperationException();
2238         }
2239 
2240         @Override
isNull(int column)2241         public boolean isNull(int column) {
2242             return mSource.isNull(column);
2243         }
2244 
2245         @Override
onMove(int oldPosition, int newPosition)2246         public boolean onMove(int oldPosition, int newPosition) {
2247             return mSource.moveToPosition(newPosition);
2248         }
2249     }
2250 
2251     // ---------------------------------------------------
2252     //  SQL below, be warned
2253     // ---------------------------------------------------
2254 
2255     private static final String SQL_CREATE_VIEW_OMNIBOX_SUGGESTIONS =
2256             "CREATE VIEW IF NOT EXISTS v_omnibox_suggestions "
2257             + " AS "
2258             + "  SELECT _id, url, title, 1 AS bookmark, 0 AS visits, 0 AS date"
2259             + "  FROM bookmarks "
2260             + "  WHERE deleted = 0 AND folder = 0 "
2261             + "  UNION ALL "
2262             + "  SELECT _id, url, title, 0 AS bookmark, visits, date "
2263             + "  FROM history "
2264             + "  WHERE url NOT IN (SELECT url FROM bookmarks"
2265             + "    WHERE deleted = 0 AND folder = 0) "
2266             + "  ORDER BY bookmark DESC, visits DESC, date DESC ";
2267 
2268     private static final String SQL_WHERE_ACCOUNT_HAS_BOOKMARKS =
2269             "0 < ( "
2270             + "SELECT count(*) "
2271             + "FROM bookmarks "
2272             + "WHERE deleted = 0 AND folder = 0 "
2273             + "  AND ( "
2274             + "    v_accounts.account_name = bookmarks.account_name "
2275             + "    OR (v_accounts.account_name IS NULL AND bookmarks.account_name IS NULL) "
2276             + "  ) "
2277             + "  AND ( "
2278             + "    v_accounts.account_type = bookmarks.account_type "
2279             + "    OR (v_accounts.account_type IS NULL AND bookmarks.account_type IS NULL) "
2280             + "  ) "
2281             + ")";
2282 }
2283