/* * Copyright (C) 2006 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.android.browser; import com.google.android.providers.GoogleSettings.Partner; import android.app.SearchManager; import android.backup.BackupManager; import android.content.ComponentName; import android.content.ContentProvider; import android.content.ContentResolver; import android.content.ContentUris; import android.content.ContentValues; import android.content.Context; import android.content.Intent; import android.content.SharedPreferences; import android.content.UriMatcher; import android.content.SharedPreferences.Editor; import android.content.pm.PackageManager; import android.content.pm.ResolveInfo; import android.database.AbstractCursor; import android.database.ContentObserver; import android.database.Cursor; import android.database.sqlite.SQLiteDatabase; import android.database.sqlite.SQLiteOpenHelper; import android.net.Uri; import android.os.Handler; import android.preference.PreferenceManager; import android.provider.Browser; import android.provider.Settings; import android.provider.Browser.BookmarkColumns; import android.server.search.SearchableInfo; import android.text.TextUtils; import android.text.util.Regex; import android.util.Log; import android.util.TypedValue; import java.util.Date; import java.util.regex.Matcher; import java.util.regex.Pattern; public class BrowserProvider extends ContentProvider { private SQLiteOpenHelper mOpenHelper; private BackupManager mBackupManager; private static final String sDatabaseName = "browser.db"; private static final String TAG = "BrowserProvider"; private static final String ORDER_BY = "visits DESC, date DESC"; private static final String PICASA_URL = "http://picasaweb.google.com/m/" + "viewer?source=androidclient"; private static final String[] TABLE_NAMES = new String[] { "bookmarks", "searches" }; private static final String[] SUGGEST_PROJECTION = new String[] { "_id", "url", "title", "bookmark" }; private static final String SUGGEST_SELECTION = "url LIKE ? OR url LIKE ? OR url LIKE ? OR url LIKE ?" + " OR title LIKE ?"; private String[] SUGGEST_ARGS = new String[5]; // shared suggestion array index, make sure to match COLUMNS private static final int SUGGEST_COLUMN_INTENT_ACTION_ID = 1; private static final int SUGGEST_COLUMN_INTENT_DATA_ID = 2; private static final int SUGGEST_COLUMN_TEXT_1_ID = 3; private static final int SUGGEST_COLUMN_TEXT_2_ID = 4; private static final int SUGGEST_COLUMN_ICON_1_ID = 5; private static final int SUGGEST_COLUMN_ICON_2_ID = 6; private static final int SUGGEST_COLUMN_QUERY_ID = 7; private static final int SUGGEST_COLUMN_FORMAT = 8; // shared suggestion columns private static final String[] COLUMNS = new String[] { "_id", SearchManager.SUGGEST_COLUMN_INTENT_ACTION, SearchManager.SUGGEST_COLUMN_INTENT_DATA, SearchManager.SUGGEST_COLUMN_TEXT_1, SearchManager.SUGGEST_COLUMN_TEXT_2, SearchManager.SUGGEST_COLUMN_ICON_1, SearchManager.SUGGEST_COLUMN_ICON_2, SearchManager.SUGGEST_COLUMN_QUERY, SearchManager.SUGGEST_COLUMN_FORMAT}; private static final int MAX_SUGGESTION_SHORT_ENTRIES = 3; private static final int MAX_SUGGESTION_LONG_ENTRIES = 6; private static final String MAX_SUGGESTION_LONG_ENTRIES_STRING = Integer.valueOf(MAX_SUGGESTION_LONG_ENTRIES).toString(); // make sure that these match the index of TABLE_NAMES private static final int URI_MATCH_BOOKMARKS = 0; private static final int URI_MATCH_SEARCHES = 1; // (id % 10) should match the table name index private static final int URI_MATCH_BOOKMARKS_ID = 10; private static final int URI_MATCH_SEARCHES_ID = 11; // private static final int URI_MATCH_SUGGEST = 20; private static final int URI_MATCH_BOOKMARKS_SUGGEST = 21; private static final UriMatcher URI_MATCHER; static { URI_MATCHER = new UriMatcher(UriMatcher.NO_MATCH); URI_MATCHER.addURI("browser", TABLE_NAMES[URI_MATCH_BOOKMARKS], URI_MATCH_BOOKMARKS); URI_MATCHER.addURI("browser", TABLE_NAMES[URI_MATCH_BOOKMARKS] + "/#", URI_MATCH_BOOKMARKS_ID); URI_MATCHER.addURI("browser", TABLE_NAMES[URI_MATCH_SEARCHES], URI_MATCH_SEARCHES); URI_MATCHER.addURI("browser", TABLE_NAMES[URI_MATCH_SEARCHES] + "/#", URI_MATCH_SEARCHES_ID); URI_MATCHER.addURI("browser", SearchManager.SUGGEST_URI_PATH_QUERY, URI_MATCH_SUGGEST); URI_MATCHER.addURI("browser", TABLE_NAMES[URI_MATCH_BOOKMARKS] + "/" + SearchManager.SUGGEST_URI_PATH_QUERY, URI_MATCH_BOOKMARKS_SUGGEST); } // 1 -> 2 add cache table // 2 -> 3 update history table // 3 -> 4 add passwords table // 4 -> 5 add settings table // 5 -> 6 ? // 6 -> 7 ? // 7 -> 8 drop proxy table // 8 -> 9 drop settings table // 9 -> 10 add form_urls and form_data // 10 -> 11 add searches table // 11 -> 12 modify cache table // 12 -> 13 modify cache table // 13 -> 14 correspond with Google Bookmarks schema // 14 -> 15 move couple of tables to either browser private database or webview database // 15 -> 17 Set it up for the SearchManager // 17 -> 18 Added favicon in bookmarks table for Home shortcuts // 18 -> 19 Remove labels table // 19 -> 20 Added thumbnail // 20 -> 21 Added touch_icon private static final int DATABASE_VERSION = 21; // Regular expression which matches http://, followed by some stuff, followed by // optionally a trailing slash, all matched as separate groups. private static final Pattern STRIP_URL_PATTERN = Pattern.compile("^(http://)(.*?)(/$)?"); private SearchManager mSearchManager; // The ID of the ColorStateList to be applied to urls of website suggestions, as derived from // the current theme. This is not set until/unless beautifyUrl is called, at which point // this variable caches the color value. private static String mSearchUrlColorId; public BrowserProvider() { } private static CharSequence replaceSystemPropertyInString(Context context, CharSequence srcString) { StringBuffer sb = new StringBuffer(); int lastCharLoc = 0; final String client_id = Partner.getString(context.getContentResolver(), Partner.CLIENT_ID, "android-google"); for (int i = 0; i < srcString.length(); ++i) { char c = srcString.charAt(i); if (c == '{') { sb.append(srcString.subSequence(lastCharLoc, i)); lastCharLoc = i; inner: for (int j = i; j < srcString.length(); ++j) { char k = srcString.charAt(j); if (k == '}') { String propertyKeyValue = srcString.subSequence(i + 1, j).toString(); if (propertyKeyValue.equals("CLIENT_ID")) { sb.append(client_id); } else { sb.append("unknown"); } lastCharLoc = j + 1; i = j; break inner; } } } } if (srcString.length() - lastCharLoc > 0) { // Put on the tail, if there is one sb.append(srcString.subSequence(lastCharLoc, srcString.length())); } return sb; } private static class DatabaseHelper extends SQLiteOpenHelper { private Context mContext; public DatabaseHelper(Context context) { super(context, sDatabaseName, null, DATABASE_VERSION); mContext = context; } @Override public void onCreate(SQLiteDatabase db) { db.execSQL("CREATE TABLE bookmarks (" + "_id INTEGER PRIMARY KEY," + "title TEXT," + "url TEXT," + "visits INTEGER," + "date LONG," + "created LONG," + "description TEXT," + "bookmark INTEGER," + "favicon BLOB DEFAULT NULL," + "thumbnail BLOB DEFAULT NULL," + "touch_icon BLOB DEFAULT NULL" + ");"); final CharSequence[] bookmarks = mContext.getResources() .getTextArray(R.array.bookmarks); int size = bookmarks.length; try { for (int i = 0; i < size; i = i + 2) { CharSequence bookmarkDestination = replaceSystemPropertyInString(mContext, bookmarks[i + 1]); db.execSQL("INSERT INTO bookmarks (title, url, visits, " + "date, created, bookmark)" + " VALUES('" + bookmarks[i] + "', '" + bookmarkDestination + "', 0, 0, 0, 1);"); } } catch (ArrayIndexOutOfBoundsException e) { } db.execSQL("CREATE TABLE searches (" + "_id INTEGER PRIMARY KEY," + "search TEXT," + "date LONG" + ");"); } @Override public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { Log.w(TAG, "Upgrading database from version " + oldVersion + " to " + newVersion); if (oldVersion == 18) { db.execSQL("DROP TABLE IF EXISTS labels"); } if (oldVersion <= 19) { db.execSQL("ALTER TABLE bookmarks ADD COLUMN thumbnail BLOB DEFAULT NULL;"); } if (oldVersion < 21) { db.execSQL("ALTER TABLE bookmarks ADD COLUMN touch_icon BLOB DEFAULT NULL;"); } else { db.execSQL("DROP TABLE IF EXISTS bookmarks"); db.execSQL("DROP TABLE IF EXISTS searches"); onCreate(db); } } } @Override public boolean onCreate() { final Context context = getContext(); mOpenHelper = new DatabaseHelper(context); mBackupManager = new BackupManager(context); // we added "picasa web album" into default bookmarks for version 19. // To avoid erasing the bookmark table, we added it explicitly for // version 18 and 19 as in the other cases, we will erase the table. if (DATABASE_VERSION == 18 || DATABASE_VERSION == 19) { SharedPreferences p = PreferenceManager .getDefaultSharedPreferences(context); boolean fix = p.getBoolean("fix_picasa", true); if (fix) { fixPicasaBookmark(); Editor ed = p.edit(); ed.putBoolean("fix_picasa", false); ed.commit(); } } mSearchManager = (SearchManager) context.getSystemService(Context.SEARCH_SERVICE); mShowWebSuggestionsSettingChangeObserver = new ShowWebSuggestionsSettingChangeObserver(); context.getContentResolver().registerContentObserver( Settings.System.getUriFor( Settings.System.SHOW_WEB_SUGGESTIONS), true, mShowWebSuggestionsSettingChangeObserver); updateShowWebSuggestions(); return true; } /** * This Observer will ensure that if the user changes the system * setting of whether to display web suggestions, we will * change accordingly. */ /* package */ class ShowWebSuggestionsSettingChangeObserver extends ContentObserver { public ShowWebSuggestionsSettingChangeObserver() { super(new Handler()); } @Override public void onChange(boolean selfChange) { updateShowWebSuggestions(); } } private ShowWebSuggestionsSettingChangeObserver mShowWebSuggestionsSettingChangeObserver; // If non-null, then the system is set to show web suggestions, // and this is the SearchableInfo to use to get them. private SearchableInfo mSearchableInfo; /** * Check the system settings to see whether web suggestions are * allowed. If so, store the SearchableInfo to grab suggestions * while the user is typing. */ private void updateShowWebSuggestions() { mSearchableInfo = null; Context context = getContext(); if (Settings.System.getInt(context.getContentResolver(), Settings.System.SHOW_WEB_SUGGESTIONS, 1 /* default on */) == 1) { Intent intent = new Intent(Intent.ACTION_WEB_SEARCH); intent.addCategory(Intent.CATEGORY_DEFAULT); ResolveInfo info = context.getPackageManager().resolveActivity( intent, PackageManager.MATCH_DEFAULT_ONLY); if (info != null) { ComponentName googleSearchComponent = new ComponentName(info.activityInfo.packageName, info.activityInfo.name); mSearchableInfo = mSearchManager.getSearchableInfo( googleSearchComponent, false); } } } private void fixPicasaBookmark() { SQLiteDatabase db = mOpenHelper.getWritableDatabase(); Cursor cursor = db.rawQuery("SELECT _id FROM bookmarks WHERE " + "bookmark = 1 AND url = ?", new String[] { PICASA_URL }); try { if (!cursor.moveToFirst()) { // set "created" so that it will be on the top of the list db.execSQL("INSERT INTO bookmarks (title, url, visits, " + "date, created, bookmark)" + " VALUES('" + getContext().getString(R.string.picasa) + "', '" + PICASA_URL + "', 0, 0, " + new Date().getTime() + ", 1);"); } } finally { if (cursor != null) { cursor.close(); } } } /* * Subclass AbstractCursor so we can combine multiple Cursors and add * "Google Search". * Here are the rules. * 1. We only have MAX_SUGGESTION_LONG_ENTRIES in the list plus * "Google Search"; * 2. If bookmark/history entries are less than * (MAX_SUGGESTION_SHORT_ENTRIES -1), we include Google suggest. */ private class MySuggestionCursor extends AbstractCursor { private Cursor mHistoryCursor; private Cursor mSuggestCursor; private int mHistoryCount; private int mSuggestionCount; private boolean mBeyondCursor; private String mString; private int mSuggestText1Id; private int mSuggestText2Id; private int mSuggestQueryId; public MySuggestionCursor(Cursor hc, Cursor sc, String string) { mHistoryCursor = hc; mSuggestCursor = sc; mHistoryCount = hc.getCount(); mSuggestionCount = sc != null ? sc.getCount() : 0; if (mSuggestionCount > (MAX_SUGGESTION_LONG_ENTRIES - mHistoryCount)) { mSuggestionCount = MAX_SUGGESTION_LONG_ENTRIES - mHistoryCount; } mString = string; mBeyondCursor = false; // Some web suggest providers only give suggestions and have no description string for // items. The order of the result columns may be different as well. So retrieve the // column indices for the fields we need now and check before using below. if (mSuggestCursor == null) { mSuggestText1Id = -1; mSuggestText2Id = -1; mSuggestQueryId = -1; } else { mSuggestText1Id = mSuggestCursor.getColumnIndex( SearchManager.SUGGEST_COLUMN_TEXT_1); mSuggestText2Id = mSuggestCursor.getColumnIndex( SearchManager.SUGGEST_COLUMN_TEXT_2); mSuggestQueryId = mSuggestCursor.getColumnIndex( SearchManager.SUGGEST_COLUMN_QUERY); } } @Override public boolean onMove(int oldPosition, int newPosition) { if (mHistoryCursor == null) { return false; } if (mHistoryCount > newPosition) { mHistoryCursor.moveToPosition(newPosition); mBeyondCursor = false; } else if (mHistoryCount + mSuggestionCount > newPosition) { mSuggestCursor.moveToPosition(newPosition - mHistoryCount); mBeyondCursor = false; } else { mBeyondCursor = true; } return true; } @Override public int getCount() { if (mString.length() > 0) { return mHistoryCount + mSuggestionCount + 1; } else { return mHistoryCount + mSuggestionCount; } } @Override public String[] getColumnNames() { return COLUMNS; } @Override public String getString(int columnIndex) { if ((mPos != -1 && mHistoryCursor != null)) { switch(columnIndex) { case SUGGEST_COLUMN_INTENT_ACTION_ID: if (mHistoryCount > mPos) { return Intent.ACTION_VIEW; } else { return Intent.ACTION_SEARCH; } case SUGGEST_COLUMN_INTENT_DATA_ID: if (mHistoryCount > mPos) { return mHistoryCursor.getString(1); } else { return null; } case SUGGEST_COLUMN_TEXT_1_ID: if (mHistoryCount > mPos) { return getHistoryTitle(); } else if (!mBeyondCursor) { if (mSuggestText1Id == -1) return null; return mSuggestCursor.getString(mSuggestText1Id); } else { return mString; } case SUGGEST_COLUMN_TEXT_2_ID: if (mHistoryCount > mPos) { return getHistorySubtitle(); } else if (!mBeyondCursor) { if (mSuggestText2Id == -1) return null; return mSuggestCursor.getString(mSuggestText2Id); } else { return getContext().getString(R.string.search_the_web); } case SUGGEST_COLUMN_ICON_1_ID: if (mHistoryCount > mPos) { if (mHistoryCursor.getInt(3) == 1) { return Integer.valueOf( R.drawable.ic_search_category_bookmark) .toString(); } else { return Integer.valueOf( R.drawable.ic_search_category_history) .toString(); } } else { return Integer.valueOf( R.drawable.ic_search_category_suggest) .toString(); } case SUGGEST_COLUMN_ICON_2_ID: return "0"; case SUGGEST_COLUMN_QUERY_ID: if (mHistoryCount > mPos) { // Return the url in the intent query column. This is ignored // within the browser because our searchable is set to // android:searchMode="queryRewriteFromData", but it is used by // global search for query rewriting. return mHistoryCursor.getString(1); } else if (!mBeyondCursor) { if (mSuggestQueryId == -1) return null; return mSuggestCursor.getString(mSuggestQueryId); } else { return mString; } case SUGGEST_COLUMN_FORMAT: return "html"; } } return null; } @Override public double getDouble(int column) { throw new UnsupportedOperationException(); } @Override public float getFloat(int column) { throw new UnsupportedOperationException(); } @Override public int getInt(int column) { throw new UnsupportedOperationException(); } @Override public long getLong(int column) { if ((mPos != -1) && column == 0) { return mPos; // use row# as the _Id } throw new UnsupportedOperationException(); } @Override public short getShort(int column) { throw new UnsupportedOperationException(); } @Override public boolean isNull(int column) { throw new UnsupportedOperationException(); } // TODO Temporary change, finalize after jq's changes go in public void deactivate() { if (mHistoryCursor != null) { mHistoryCursor.deactivate(); } if (mSuggestCursor != null) { mSuggestCursor.deactivate(); } super.deactivate(); } public boolean requery() { return (mHistoryCursor != null ? mHistoryCursor.requery() : false) | (mSuggestCursor != null ? mSuggestCursor.requery() : false); } // TODO Temporary change, finalize after jq's changes go in public void close() { super.close(); if (mHistoryCursor != null) { mHistoryCursor.close(); mHistoryCursor = null; } if (mSuggestCursor != null) { mSuggestCursor.close(); mSuggestCursor = null; } } /** * Provides the title (text line 1) for a browser suggestion, which should be the * webpage title. If the webpage title is empty, returns the stripped url instead. * * @return the title string to use */ private String getHistoryTitle() { String title = mHistoryCursor.getString(2 /* webpage title */); if (TextUtils.isEmpty(title) || TextUtils.getTrimmedLength(title) == 0) { title = beautifyUrl(mHistoryCursor.getString(1 /* url */)); } return title; } /** * Provides the subtitle (text line 2) for a browser suggestion, which should be the * webpage url. If the webpage title is empty, then the url should go in the title * instead, and the subtitle should be empty, so this would return null. * * @return the subtitle string to use, or null if none */ private String getHistorySubtitle() { String title = mHistoryCursor.getString(2 /* webpage title */); if (TextUtils.isEmpty(title) || TextUtils.getTrimmedLength(title) == 0) { return null; } else { return beautifyUrl(mHistoryCursor.getString(1 /* url */)); } } /** * Strips "http://" from the beginning of a url and "/" from the end, * and adds html formatting to make it green. */ private String beautifyUrl(String url) { if (mSearchUrlColorId == null) { // Get the color used for this purpose from the current theme. TypedValue colorValue = new TypedValue(); getContext().getTheme().resolveAttribute( com.android.internal.R.attr.textColorSearchUrl, colorValue, true); mSearchUrlColorId = Integer.toString(colorValue.resourceId); } return "" + stripUrl(url) + ""; } } @Override public Cursor query(Uri url, String[] projectionIn, String selection, String[] selectionArgs, String sortOrder) throws IllegalStateException { SQLiteDatabase db = mOpenHelper.getReadableDatabase(); int match = URI_MATCHER.match(url); if (match == -1) { throw new IllegalArgumentException("Unknown URL"); } if (match == URI_MATCH_SUGGEST || match == URI_MATCH_BOOKMARKS_SUGGEST) { String suggestSelection; String [] myArgs; if (selectionArgs[0] == null || selectionArgs[0].equals("")) { suggestSelection = null; myArgs = null; } else { String like = selectionArgs[0] + "%"; if (selectionArgs[0].startsWith("http") || selectionArgs[0].startsWith("file")) { myArgs = new String[1]; myArgs[0] = like; suggestSelection = selection; } else { SUGGEST_ARGS[0] = "http://" + like; SUGGEST_ARGS[1] = "http://www." + like; SUGGEST_ARGS[2] = "https://" + like; SUGGEST_ARGS[3] = "https://www." + like; // To match against titles. SUGGEST_ARGS[4] = like; myArgs = SUGGEST_ARGS; suggestSelection = SUGGEST_SELECTION; } } Cursor c = db.query(TABLE_NAMES[URI_MATCH_BOOKMARKS], SUGGEST_PROJECTION, suggestSelection, myArgs, null, null, ORDER_BY, MAX_SUGGESTION_LONG_ENTRIES_STRING); if (match == URI_MATCH_BOOKMARKS_SUGGEST || Regex.WEB_URL_PATTERN.matcher(selectionArgs[0]).matches()) { return new MySuggestionCursor(c, null, ""); } else { // get Google suggest if there is still space in the list if (myArgs != null && myArgs.length > 1 && mSearchableInfo != null && c.getCount() < (MAX_SUGGESTION_SHORT_ENTRIES - 1)) { Cursor sc = mSearchManager.getSuggestions(mSearchableInfo, selectionArgs[0]); return new MySuggestionCursor(c, sc, selectionArgs[0]); } return new MySuggestionCursor(c, null, selectionArgs[0]); } } String[] projection = null; if (projectionIn != null && projectionIn.length > 0) { projection = new String[projectionIn.length + 1]; System.arraycopy(projectionIn, 0, projection, 0, projectionIn.length); projection[projectionIn.length] = "_id AS _id"; } StringBuilder whereClause = new StringBuilder(256); if (match == URI_MATCH_BOOKMARKS_ID || match == URI_MATCH_SEARCHES_ID) { whereClause.append("(_id = ").append(url.getPathSegments().get(1)) .append(")"); } // Tack on the user's selection, if present if (selection != null && selection.length() > 0) { if (whereClause.length() > 0) { whereClause.append(" AND "); } whereClause.append('('); whereClause.append(selection); whereClause.append(')'); } Cursor c = db.query(TABLE_NAMES[match % 10], projection, whereClause.toString(), selectionArgs, null, null, sortOrder, null); c.setNotificationUri(getContext().getContentResolver(), url); return c; } @Override public String getType(Uri url) { int match = URI_MATCHER.match(url); switch (match) { case URI_MATCH_BOOKMARKS: return "vnd.android.cursor.dir/bookmark"; case URI_MATCH_BOOKMARKS_ID: return "vnd.android.cursor.item/bookmark"; case URI_MATCH_SEARCHES: return "vnd.android.cursor.dir/searches"; case URI_MATCH_SEARCHES_ID: return "vnd.android.cursor.item/searches"; case URI_MATCH_SUGGEST: return SearchManager.SUGGEST_MIME_TYPE; default: throw new IllegalArgumentException("Unknown URL"); } } @Override public Uri insert(Uri url, ContentValues initialValues) { boolean isBookmarkTable = false; SQLiteDatabase db = mOpenHelper.getWritableDatabase(); int match = URI_MATCHER.match(url); Uri uri = null; switch (match) { case URI_MATCH_BOOKMARKS: { // Insert into the bookmarks table long rowID = db.insert(TABLE_NAMES[URI_MATCH_BOOKMARKS], "url", initialValues); if (rowID > 0) { uri = ContentUris.withAppendedId(Browser.BOOKMARKS_URI, rowID); } isBookmarkTable = true; break; } case URI_MATCH_SEARCHES: { // Insert into the searches table long rowID = db.insert(TABLE_NAMES[URI_MATCH_SEARCHES], "url", initialValues); if (rowID > 0) { uri = ContentUris.withAppendedId(Browser.SEARCHES_URI, rowID); } break; } default: throw new IllegalArgumentException("Unknown URL"); } if (uri == null) { throw new IllegalArgumentException("Unknown URL"); } getContext().getContentResolver().notifyChange(uri, null); // Back up the new bookmark set if we just inserted one. // A row created when bookmarks are added from scratch will have // bookmark=1 in the initial value set. if (isBookmarkTable && initialValues.containsKey(BookmarkColumns.BOOKMARK) && initialValues.getAsInteger(BookmarkColumns.BOOKMARK) != 0) { mBackupManager.dataChanged(); } return uri; } @Override public int delete(Uri url, String where, String[] whereArgs) { SQLiteDatabase db = mOpenHelper.getWritableDatabase(); int match = URI_MATCHER.match(url); if (match == -1 || match == URI_MATCH_SUGGEST) { throw new IllegalArgumentException("Unknown URL"); } // need to know whether it's the bookmarks table for a couple of reasons boolean isBookmarkTable = (match == URI_MATCH_BOOKMARKS_ID); String id = null; if (isBookmarkTable || match == URI_MATCH_SEARCHES_ID) { StringBuilder sb = new StringBuilder(); if (where != null && where.length() > 0) { sb.append("( "); sb.append(where); sb.append(" ) AND "); } id = url.getPathSegments().get(1); sb.append("_id = "); sb.append(id); where = sb.toString(); } ContentResolver cr = getContext().getContentResolver(); // we'lll need to back up the bookmark set if we are about to delete one if (isBookmarkTable) { Cursor cursor = cr.query(Browser.BOOKMARKS_URI, new String[] { BookmarkColumns.BOOKMARK }, "_id = " + id, null, null); if (cursor.moveToNext()) { if (cursor.getInt(0) != 0) { // yep, this record is a bookmark mBackupManager.dataChanged(); } } cursor.close(); } int count = db.delete(TABLE_NAMES[match % 10], where, whereArgs); cr.notifyChange(url, null); return count; } @Override public int update(Uri url, ContentValues values, String where, String[] whereArgs) { SQLiteDatabase db = mOpenHelper.getWritableDatabase(); int match = URI_MATCHER.match(url); if (match == -1 || match == URI_MATCH_SUGGEST) { throw new IllegalArgumentException("Unknown URL"); } String id = null; boolean isBookmarkTable = (match == URI_MATCH_BOOKMARKS_ID); boolean changingBookmarks = false; if (isBookmarkTable || match == URI_MATCH_SEARCHES_ID) { StringBuilder sb = new StringBuilder(); if (where != null && where.length() > 0) { sb.append("( "); sb.append(where); sb.append(" ) AND "); } id = url.getPathSegments().get(1); sb.append("_id = "); sb.append(id); where = sb.toString(); } ContentResolver cr = getContext().getContentResolver(); // Not all bookmark-table updates should be backed up. Look to see // whether we changed the title, url, or "is a bookmark" state, and // request a backup if so. if (isBookmarkTable) { // Alterations to the bookmark field inherently change the bookmark // set, so we don't need to query the record; we know a priori that // we will need to back up this change. if (values.containsKey(BookmarkColumns.BOOKMARK)) { changingBookmarks = true; } // changing the title or URL of a bookmark record requires a backup, // but we don't know wether such an update is on a bookmark without // querying the record if (!changingBookmarks && (values.containsKey(BookmarkColumns.TITLE) || values.containsKey(BookmarkColumns.URL))) { // when isBookmarkTable is true, the 'id' var was assigned above Cursor cursor = cr.query(Browser.BOOKMARKS_URI, new String[] { BookmarkColumns.BOOKMARK }, "_id = " + id, null, null); if (cursor.moveToNext()) { changingBookmarks = (cursor.getInt(0) != 0); } cursor.close(); } // if this *is* a bookmark row we're altering, we need to back it up. if (changingBookmarks) { mBackupManager.dataChanged(); } } int ret = db.update(TABLE_NAMES[match % 10], values, where, whereArgs); cr.notifyChange(url, null); return ret; } /** * Strips the provided url of preceding "http://" and any trailing "/". Does not * strip "https://". If the provided string cannot be stripped, the original string * is returned. * * TODO: Put this in TextUtils to be used by other packages doing something similar. * * @param url a url to strip, like "http://www.google.com/" * @return a stripped url like "www.google.com", or the original string if it could * not be stripped */ private static String stripUrl(String url) { if (url == null) return null; Matcher m = STRIP_URL_PATTERN.matcher(url); if (m.matches() && m.groupCount() == 3) { return m.group(2); } else { return url; } } }