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