1220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani/* 2220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani * Copyright (C) 2008 The Android Open Source Project 3220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani * 4220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani * Licensed under the Apache License, Version 2.0 (the "License"); 5220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani * you may not use this file except in compliance with the License. 6220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani * You may obtain a copy of the License at 7220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani * 8220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani * http://www.apache.org/licenses/LICENSE-2.0 9220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani * 10220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani * Unless required by applicable law or agreed to in writing, software 11220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani * distributed under the License is distributed on an "AS IS" BASIS, 12220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani * See the License for the specific language governing permissions and 14220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani * limitations under the License. 15220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani */ 16220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani 17220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasanipackage com.android.providers.settings; 18220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani 19a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganovimport android.app.backup.BackupAgentHelper; 20a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganovimport android.app.backup.BackupDataInput; 21a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganovimport android.app.backup.BackupDataOutput; 22a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganovimport android.app.backup.FullBackupDataOutput; 23a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganovimport android.content.ContentValues; 24a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganovimport android.content.Context; 25a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganovimport android.database.Cursor; 26a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganovimport android.net.Uri; 27a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganovimport android.net.wifi.WifiManager; 28a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganovimport android.os.FileUtils; 29d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tateimport android.os.Handler; 30a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganovimport android.os.ParcelFileDescriptor; 31a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganovimport android.os.Process; 32a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganovimport android.provider.Settings; 33a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganovimport android.util.Log; 34a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov 357078789a39f51e473bdf864e16202f67ce8ca219Brad Fitzpatrickimport java.io.BufferedOutputStream; 362cfab8445851c59f7da07d81645ece8d70e8ce28Amith Yamasaniimport java.io.BufferedReader; 372cfab8445851c59f7da07d81645ece8d70e8ce28Amith Yamasaniimport java.io.BufferedWriter; 388dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tateimport java.io.CharArrayReader; 39d158214511a3c04753de04fa6389e46d33135c38Amith Yamasaniimport java.io.DataInputStream; 40d158214511a3c04753de04fa6389e46d33135c38Amith Yamasaniimport java.io.DataOutputStream; 412cfab8445851c59f7da07d81645ece8d70e8ce28Amith Yamasaniimport java.io.EOFException; 42220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasaniimport java.io.File; 43220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasaniimport java.io.FileInputStream; 44220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasaniimport java.io.FileOutputStream; 452cfab8445851c59f7da07d81645ece8d70e8ce28Amith Yamasaniimport java.io.FileReader; 462cfab8445851c59f7da07d81645ece8d70e8ce28Amith Yamasaniimport java.io.FileWriter; 47220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasaniimport java.io.IOException; 48a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganovimport java.io.InputStream; 497078789a39f51e473bdf864e16202f67ce8ca219Brad Fitzpatrickimport java.io.OutputStream; 508dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tateimport java.io.Writer; 518dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tateimport java.util.ArrayList; 52a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganovimport java.util.HashMap; 538dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tateimport java.util.HashSet; 54a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganovimport java.util.Map; 55d158214511a3c04753de04fa6389e46d33135c38Amith Yamasaniimport java.util.zip.CRC32; 56220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani 57220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani/** 58220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani * Performs backup and restore of the System and Secure settings. 59220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani * List of settings that are backed up are stored in the Settings.java file 60220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani */ 61cc84c69726507a85116f5664e20e2ebfac76edbeChristopher Tatepublic class SettingsBackupAgent extends BackupAgentHelper { 62436344ae12c819f58306ceb94241a266141e1218Christopher Tate private static final boolean DEBUG = false; 638dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate private static final boolean DEBUG_BACKUP = DEBUG || false; 64220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani 65220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani private static final String KEY_SYSTEM = "system"; 66220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani private static final String KEY_SECURE = "secure"; 6766488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate private static final String KEY_GLOBAL = "global"; 688823c0a8c68fe669c21c539eef9fc6541f0c7494Amith Yamasani private static final String KEY_LOCALE = "locale"; 69220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani 70a286f419084d56217f05a64f1d24c9e07917212eChristopher Tate // Versioning of the state file. Increment this version 71a286f419084d56217f05a64f1d24c9e07917212eChristopher Tate // number any time the set of state items is altered. 7266488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate private static final int STATE_VERSION = 3; 73a286f419084d56217f05a64f1d24c9e07917212eChristopher Tate 7466488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate // Slots in the checksum array. Never insert new items in the middle 7566488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate // of this array; new slots must be appended. 764aeca7c5908387bc7efb0785830aea1053264062Irfan Sheriff private static final int STATE_SYSTEM = 0; 774aeca7c5908387bc7efb0785830aea1053264062Irfan Sheriff private static final int STATE_SECURE = 1; 784aeca7c5908387bc7efb0785830aea1053264062Irfan Sheriff private static final int STATE_LOCALE = 2; 794aeca7c5908387bc7efb0785830aea1053264062Irfan Sheriff private static final int STATE_WIFI_SUPPLICANT = 3; 804aeca7c5908387bc7efb0785830aea1053264062Irfan Sheriff private static final int STATE_WIFI_CONFIG = 4; 8166488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate private static final int STATE_GLOBAL = 5; 8266488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate 8366488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate private static final int STATE_SIZE = 6; // The current number of state items 8466488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate 8566488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate // Number of entries in the checksum array at various version numbers 8666488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate private static final int STATE_SIZES[] = { 8766488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate 0, 8866488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate 4, // version 1 8966488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate 5, // version 2 added STATE_WIFI_CONFIG 9066488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate STATE_SIZE // version 3 added STATE_GLOBAL 9166488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate }; 92d158214511a3c04753de04fa6389e46d33135c38Amith Yamasani 9375a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate // Versioning of the 'full backup' format 9466488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate private static final int FULL_BACKUP_VERSION = 2; 9566488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate private static final int FULL_BACKUP_ADDED_GLOBAL = 2; // added the "global" entry 9675a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate 97a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov private static final int INTEGER_BYTE_COUNT = Integer.SIZE / Byte.SIZE; 98220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani 99220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani private static final byte[] EMPTY_DATA = new byte[0]; 100220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani 101220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani private static final String TAG = "SettingsBackupAgent"; 102220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani 103220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani private static final int COLUMN_NAME = 1; 104220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani private static final int COLUMN_VALUE = 2; 105220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani 106220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani private static final String[] PROJECTION = { 107220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani Settings.NameValueTable._ID, 108220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani Settings.NameValueTable.NAME, 109220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani Settings.NameValueTable.VALUE 110220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani }; 111220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani 112220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani private static final String FILE_WIFI_SUPPLICANT = "/data/misc/wifi/wpa_supplicant.conf"; 1132cfab8445851c59f7da07d81645ece8d70e8ce28Amith Yamasani private static final String FILE_WIFI_SUPPLICANT_TEMPLATE = 1142cfab8445851c59f7da07d81645ece8d70e8ce28Amith Yamasani "/system/etc/wifi/wpa_supplicant.conf"; 11592c1752175f0880a0e0a05fdca37b54a8fb2b52dChristian Sonntag 11692c1752175f0880a0e0a05fdca37b54a8fb2b52dChristian Sonntag // the key to store the WIFI data under, should be sorted as last, so restore happens last. 11792c1752175f0880a0e0a05fdca37b54a8fb2b52dChristian Sonntag // use very late unicode character to quasi-guarantee last sort position. 1182cfab8445851c59f7da07d81645ece8d70e8ce28Amith Yamasani private static final String KEY_WIFI_SUPPLICANT = "\uffedWIFI"; 1194aeca7c5908387bc7efb0785830aea1053264062Irfan Sheriff private static final String KEY_WIFI_CONFIG = "\uffedCONFIG_WIFI"; 120220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani 1214a627c71ff53a4fca1f961f4b1dcc0461df18a06Christopher Tate // Name of the temporary file we use during full backup/restore. This is 1224a627c71ff53a4fca1f961f4b1dcc0461df18a06Christopher Tate // stored in the full-backup tarfile as well, so should not be changed. 1234a627c71ff53a4fca1f961f4b1dcc0461df18a06Christopher Tate private static final String STAGE_FILE = "flattened-data"; 1244a627c71ff53a4fca1f961f4b1dcc0461df18a06Christopher Tate 125d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate // Delay in milliseconds between the restore operation and when we will bounce 126d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate // wifi in order to rewrite the supplicant config etc. 127d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate private static final long WIFI_BOUNCE_DELAY_MILLIS = 60 * 1000; // one minute 128d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate 129220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani private SettingsHelper mSettingsHelper; 1304aeca7c5908387bc7efb0785830aea1053264062Irfan Sheriff private WifiManager mWfm; 1314aeca7c5908387bc7efb0785830aea1053264062Irfan Sheriff private static String mWifiConfigFile; 132220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani 133d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate WifiRestoreRunnable mWifiRestore = null; 134d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate 1358dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate // Class for capturing a network definition from the wifi supplicant config file 1368dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate static class Network { 1378dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate String ssid = ""; // equals() and hashCode() need these to be non-null 1388dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate String key_mgmt = ""; 1398dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate final ArrayList<String> rawLines = new ArrayList<String>(); 1408dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate 1418dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate public static Network readFromStream(BufferedReader in) { 1428dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate final Network n = new Network(); 1438dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate String line; 1448dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate try { 1458dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate while (in.ready()) { 1468dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate line = in.readLine(); 1478dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate if (line == null || line.startsWith("}")) { 1488dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate break; 1498dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate } 1508dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate n.rememberLine(line); 1518dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate } 1528dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate } catch (IOException e) { 1538dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate return null; 1548dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate } 1558dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate return n; 1568dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate } 1578dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate 1588dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate void rememberLine(String line) { 1598dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate // can't rely on particular whitespace patterns so strip leading/trailing 1608dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate line = line.trim(); 1618dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate if (line.isEmpty()) return; // only whitespace; drop the line 1628dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate rawLines.add(line); 1638dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate 1648dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate // remember the ssid and key_mgmt lines for duplicate culling 1658dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate if (line.startsWith("ssid")) { 1668dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate ssid = line; 1678dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate } else if (line.startsWith("key_mgmt")) { 1688dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate key_mgmt = line; 1698dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate } 1708dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate } 1718dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate 1728dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate public void write(Writer w) throws IOException { 1738dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate w.write("\nnetwork={\n"); 1748dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate for (String line : rawLines) { 1758dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate w.write("\t" + line + "\n"); 1768dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate } 1778dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate w.write("}\n"); 1788dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate } 1798dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate 1808dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate public void dump() { 1818dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate Log.v(TAG, "network={"); 1828dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate for (String line : rawLines) { 1838dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate Log.v(TAG, " " + line); 1848dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate } 1858dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate Log.v(TAG, "}"); 1868dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate } 1878dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate 1888dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate // Same approach as Pair.equals() and Pair.hashCode() 1898dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate @Override 1908dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate public boolean equals(Object o) { 1918dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate if (o == this) return true; 1928dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate if (!(o instanceof Network)) return false; 1938dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate final Network other; 1948dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate try { 1958dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate other = (Network) o; 1968dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate } catch (ClassCastException e) { 1978dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate return false; 1988dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate } 1998dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate return ssid.equals(other.ssid) && key_mgmt.equals(other.key_mgmt); 2008dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate } 2018dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate 2028dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate @Override 2038dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate public int hashCode() { 2048dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate int result = 17; 2058dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate result = 31 * result + ssid.hashCode(); 2068dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate result = 31 * result + key_mgmt.hashCode(); 2078dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate return result; 2088dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate } 2098dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate } 2108dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate 2118dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate // Ingest multiple wifi config file fragments, looking for network={} blocks 2128dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate // and eliminating duplicates 2138dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate class WifiNetworkSettings { 2148dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate // One for fast lookup, one for maintaining ordering 2158dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate final HashSet<Network> mKnownNetworks = new HashSet<Network>(); 2168dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate final ArrayList<Network> mNetworks = new ArrayList<Network>(8); 2178dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate 2188dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate public void readNetworks(BufferedReader in) { 2198dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate try { 2208dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate String line; 2218dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate while (in.ready()) { 2228dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate line = in.readLine(); 2238dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate if (line != null) { 2248dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate // Parse out 'network=' decls so we can ignore duplicates 2258dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate if (line.startsWith("network")) { 2268dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate Network net = Network.readFromStream(in); 2278dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate if (! mKnownNetworks.contains(net)) { 2288dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate if (DEBUG_BACKUP) { 2298dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate Log.v(TAG, "Adding " + net.ssid + " / " + net.key_mgmt); 2308dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate } 2318dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate mKnownNetworks.add(net); 2328dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate mNetworks.add(net); 2338dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate } else { 2348dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate if (DEBUG_BACKUP) { 2358dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate Log.v(TAG, "Dupe; skipped " + net.ssid + " / " + net.key_mgmt); 2368dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate } 2378dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate } 2388dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate } 2398dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate } 2408dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate } 2418dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate } catch (IOException e) { 2428dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate // whatever happened, we're done now 2438dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate } 2448dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate } 2458dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate 2468dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate public void write(Writer w) throws IOException { 2478dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate for (Network net : mNetworks) { 2488dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate net.write(w); 2498dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate } 2508dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate } 2518dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate 2528dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate public void dump() { 2538dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate for (Network net : mNetworks) { 2548dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate net.dump(); 2558dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate } 2568dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate } 2578dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate } 2588dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate 259a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov @Override 260220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani public void onCreate() { 26175a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate if (DEBUG_BACKUP) Log.d(TAG, "onCreate() invoked"); 26275a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate 263220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani mSettingsHelper = new SettingsHelper(this); 264220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani super.onCreate(); 2654aeca7c5908387bc7efb0785830aea1053264062Irfan Sheriff 2664aeca7c5908387bc7efb0785830aea1053264062Irfan Sheriff WifiManager mWfm = (WifiManager) getSystemService(Context.WIFI_SERVICE); 2674aeca7c5908387bc7efb0785830aea1053264062Irfan Sheriff if (mWfm != null) mWifiConfigFile = mWfm.getConfigFile(); 268220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani } 269220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani 270220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani @Override 271220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani public void onBackup(ParcelFileDescriptor oldState, BackupDataOutput data, 272220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani ParcelFileDescriptor newState) throws IOException { 273220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani 274220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani byte[] systemSettingsData = getSystemSettings(); 275220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani byte[] secureSettingsData = getSecureSettings(); 27666488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate byte[] globalSettingsData = getGlobalSettings(); 2778823c0a8c68fe669c21c539eef9fc6541f0c7494Amith Yamasani byte[] locale = mSettingsHelper.getLocaleData(); 2784aeca7c5908387bc7efb0785830aea1053264062Irfan Sheriff byte[] wifiSupplicantData = getWifiSupplicant(FILE_WIFI_SUPPLICANT); 2794aeca7c5908387bc7efb0785830aea1053264062Irfan Sheriff byte[] wifiConfigData = getFileData(mWifiConfigFile); 280220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani 28179ec80db70d788f35aa13346e4684ecbd401bd84Christopher Tate long[] stateChecksums = readOldChecksums(oldState); 28279ec80db70d788f35aa13346e4684ecbd401bd84Christopher Tate 28379ec80db70d788f35aa13346e4684ecbd401bd84Christopher Tate stateChecksums[STATE_SYSTEM] = 28479ec80db70d788f35aa13346e4684ecbd401bd84Christopher Tate writeIfChanged(stateChecksums[STATE_SYSTEM], KEY_SYSTEM, systemSettingsData, data); 28579ec80db70d788f35aa13346e4684ecbd401bd84Christopher Tate stateChecksums[STATE_SECURE] = 28679ec80db70d788f35aa13346e4684ecbd401bd84Christopher Tate writeIfChanged(stateChecksums[STATE_SECURE], KEY_SECURE, secureSettingsData, data); 28766488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate stateChecksums[STATE_GLOBAL] = 2883543beb255b30c294283270ede3fcf048dc71b02Christopher Tate writeIfChanged(stateChecksums[STATE_GLOBAL], KEY_GLOBAL, globalSettingsData, data); 28979ec80db70d788f35aa13346e4684ecbd401bd84Christopher Tate stateChecksums[STATE_LOCALE] = 29079ec80db70d788f35aa13346e4684ecbd401bd84Christopher Tate writeIfChanged(stateChecksums[STATE_LOCALE], KEY_LOCALE, locale, data); 29179ec80db70d788f35aa13346e4684ecbd401bd84Christopher Tate stateChecksums[STATE_WIFI_SUPPLICANT] = 29279ec80db70d788f35aa13346e4684ecbd401bd84Christopher Tate writeIfChanged(stateChecksums[STATE_WIFI_SUPPLICANT], KEY_WIFI_SUPPLICANT, 29379ec80db70d788f35aa13346e4684ecbd401bd84Christopher Tate wifiSupplicantData, data); 29479ec80db70d788f35aa13346e4684ecbd401bd84Christopher Tate stateChecksums[STATE_WIFI_CONFIG] = 29579ec80db70d788f35aa13346e4684ecbd401bd84Christopher Tate writeIfChanged(stateChecksums[STATE_WIFI_CONFIG], KEY_WIFI_CONFIG, wifiConfigData, 29679ec80db70d788f35aa13346e4684ecbd401bd84Christopher Tate data); 29779ec80db70d788f35aa13346e4684ecbd401bd84Christopher Tate 29879ec80db70d788f35aa13346e4684ecbd401bd84Christopher Tate writeNewChecksums(stateChecksums, newState); 299220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani } 300220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani 301d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate class WifiRestoreRunnable implements Runnable { 302d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate private byte[] restoredSupplicantData; 303d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate private byte[] restoredWifiConfigFile; 304d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate 305d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate void incorporateWifiSupplicant(BackupDataInput data) { 306d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate restoredSupplicantData = new byte[data.getDataSize()]; 307d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate if (restoredSupplicantData.length <= 0) return; 308d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate try { 309d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate data.readEntityData(restoredSupplicantData, 0, data.getDataSize()); 310d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate } catch (IOException e) { 311d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate Log.w(TAG, "Unable to read supplicant data"); 312d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate restoredSupplicantData = null; 313d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate } 314d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate } 315d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate 316d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate void incorporateWifiConfigFile(BackupDataInput data) { 317d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate restoredWifiConfigFile = new byte[data.getDataSize()]; 318d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate if (restoredWifiConfigFile.length <= 0) return; 319d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate try { 320d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate data.readEntityData(restoredWifiConfigFile, 0, data.getDataSize()); 321d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate } catch (IOException e) { 322d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate Log.w(TAG, "Unable to read config file"); 323d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate restoredWifiConfigFile = null; 324d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate } 325d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate } 326d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate 327d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate @Override 328d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate public void run() { 329d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate if (restoredSupplicantData != null || restoredWifiConfigFile != null) { 330d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate if (DEBUG_BACKUP) { 331d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate Log.v(TAG, "Starting deferred restore of wifi data"); 332d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate } 333d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate final int retainedWifiState = enableWifi(false); 334d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate if (restoredSupplicantData != null) { 335d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate restoreWifiSupplicant(FILE_WIFI_SUPPLICANT, 336d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate restoredSupplicantData, restoredSupplicantData.length); 337d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate FileUtils.setPermissions(FILE_WIFI_SUPPLICANT, 338d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate FileUtils.S_IRUSR | FileUtils.S_IWUSR | 339d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate FileUtils.S_IRGRP | FileUtils.S_IWGRP, 340d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate Process.myUid(), Process.WIFI_UID); 341d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate } 342d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate if (restoredWifiConfigFile != null) { 343d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate restoreFileData(mWifiConfigFile, 344d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate restoredWifiConfigFile, restoredWifiConfigFile.length); 345d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate } 346d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate // restore the previous WIFI state. 347d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate enableWifi(retainedWifiState == WifiManager.WIFI_STATE_ENABLED || 348d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate retainedWifiState == WifiManager.WIFI_STATE_ENABLING); 349d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate } 350d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate } 351d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate } 352d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate 353d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate // Instantiate the wifi-config restore runnable, scheduling it for execution 354d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate // a minute hence 355d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate void initWifiRestoreIfNecessary() { 356d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate if (mWifiRestore == null) { 357d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate mWifiRestore = new WifiRestoreRunnable(); 358d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate } 359d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate } 360d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate 361220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani @Override 362220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani public void onRestore(BackupDataInput data, int appVersionCode, 363220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani ParcelFileDescriptor newState) throws IOException { 364220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani 36566488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate HashSet<String> movedToGlobal = new HashSet<String>(); 36666488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate Settings.System.getMovedKeys(movedToGlobal); 36766488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate Settings.Secure.getMovedKeys(movedToGlobal); 36866488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate 369220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani while (data.readNextHeader()) { 370220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani final String key = data.getKey(); 3718823c0a8c68fe669c21c539eef9fc6541f0c7494Amith Yamasani final int size = data.getDataSize(); 372220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani if (KEY_SYSTEM.equals(key)) { 37366488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate restoreSettings(data, Settings.System.CONTENT_URI, movedToGlobal); 374d158214511a3c04753de04fa6389e46d33135c38Amith Yamasani mSettingsHelper.applyAudioSettings(); 375220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani } else if (KEY_SECURE.equals(key)) { 37666488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate restoreSettings(data, Settings.Secure.CONTENT_URI, movedToGlobal); 3773543beb255b30c294283270ede3fcf048dc71b02Christopher Tate } else if (KEY_GLOBAL.equals(key)) { 3783543beb255b30c294283270ede3fcf048dc71b02Christopher Tate restoreSettings(data, Settings.Global.CONTENT_URI, null); 379d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate } else if (KEY_WIFI_SUPPLICANT.equals(key)) { 380d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate initWifiRestoreIfNecessary(); 381d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate mWifiRestore.incorporateWifiSupplicant(data); 3828823c0a8c68fe669c21c539eef9fc6541f0c7494Amith Yamasani } else if (KEY_LOCALE.equals(key)) { 3838823c0a8c68fe669c21c539eef9fc6541f0c7494Amith Yamasani byte[] localeData = new byte[size]; 3848823c0a8c68fe669c21c539eef9fc6541f0c7494Amith Yamasani data.readEntityData(localeData, 0, size); 38575a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate mSettingsHelper.setLocaleData(localeData, size); 386d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate } else if (KEY_WIFI_CONFIG.equals(key)) { 387d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate initWifiRestoreIfNecessary(); 388d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate mWifiRestore.incorporateWifiConfigFile(data); 3894aeca7c5908387bc7efb0785830aea1053264062Irfan Sheriff } else { 390220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani data.skipEntityData(); 391220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani } 392220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani } 393d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate 394d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate // If we have wifi data to restore, post a runnable to perform the 395d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate // bounce-and-update operation a little ways in the future. 396d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate if (mWifiRestore != null) { 397d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate new Handler(getMainLooper()).postDelayed(mWifiRestore, WIFI_BOUNCE_DELAY_MILLIS); 398d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate } 399220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani } 400220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani 40175a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate @Override 40279ec80db70d788f35aa13346e4684ecbd401bd84Christopher Tate public void onFullBackup(FullBackupDataOutput data) throws IOException { 40379ec80db70d788f35aa13346e4684ecbd401bd84Christopher Tate byte[] systemSettingsData = getSystemSettings(); 40479ec80db70d788f35aa13346e4684ecbd401bd84Christopher Tate byte[] secureSettingsData = getSecureSettings(); 40566488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate byte[] globalSettingsData = getGlobalSettings(); 40679ec80db70d788f35aa13346e4684ecbd401bd84Christopher Tate byte[] locale = mSettingsHelper.getLocaleData(); 40779ec80db70d788f35aa13346e4684ecbd401bd84Christopher Tate byte[] wifiSupplicantData = getWifiSupplicant(FILE_WIFI_SUPPLICANT); 40879ec80db70d788f35aa13346e4684ecbd401bd84Christopher Tate byte[] wifiConfigData = getFileData(mWifiConfigFile); 40979ec80db70d788f35aa13346e4684ecbd401bd84Christopher Tate 41079ec80db70d788f35aa13346e4684ecbd401bd84Christopher Tate // Write the data to the staging file, then emit that as our tarfile 41179ec80db70d788f35aa13346e4684ecbd401bd84Christopher Tate // representation of the backed-up settings. 41279ec80db70d788f35aa13346e4684ecbd401bd84Christopher Tate String root = getFilesDir().getAbsolutePath(); 41379ec80db70d788f35aa13346e4684ecbd401bd84Christopher Tate File stage = new File(root, STAGE_FILE); 41479ec80db70d788f35aa13346e4684ecbd401bd84Christopher Tate try { 41579ec80db70d788f35aa13346e4684ecbd401bd84Christopher Tate FileOutputStream filestream = new FileOutputStream(stage); 41679ec80db70d788f35aa13346e4684ecbd401bd84Christopher Tate BufferedOutputStream bufstream = new BufferedOutputStream(filestream); 41779ec80db70d788f35aa13346e4684ecbd401bd84Christopher Tate DataOutputStream out = new DataOutputStream(bufstream); 41879ec80db70d788f35aa13346e4684ecbd401bd84Christopher Tate 4192efd2dbbac9eac89620683696c6076463c3a1cd6Christopher Tate if (DEBUG_BACKUP) Log.d(TAG, "Writing flattened data version " + FULL_BACKUP_VERSION); 42079ec80db70d788f35aa13346e4684ecbd401bd84Christopher Tate out.writeInt(FULL_BACKUP_VERSION); 42179ec80db70d788f35aa13346e4684ecbd401bd84Christopher Tate 4222efd2dbbac9eac89620683696c6076463c3a1cd6Christopher Tate if (DEBUG_BACKUP) Log.d(TAG, systemSettingsData.length + " bytes of settings data"); 42379ec80db70d788f35aa13346e4684ecbd401bd84Christopher Tate out.writeInt(systemSettingsData.length); 42479ec80db70d788f35aa13346e4684ecbd401bd84Christopher Tate out.write(systemSettingsData); 4252efd2dbbac9eac89620683696c6076463c3a1cd6Christopher Tate if (DEBUG_BACKUP) Log.d(TAG, secureSettingsData.length + " bytes of secure settings data"); 42679ec80db70d788f35aa13346e4684ecbd401bd84Christopher Tate out.writeInt(secureSettingsData.length); 42779ec80db70d788f35aa13346e4684ecbd401bd84Christopher Tate out.write(secureSettingsData); 42866488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate if (DEBUG_BACKUP) Log.d(TAG, globalSettingsData.length + " bytes of global settings data"); 42966488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate out.writeInt(globalSettingsData.length); 43066488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate out.write(globalSettingsData); 4312efd2dbbac9eac89620683696c6076463c3a1cd6Christopher Tate if (DEBUG_BACKUP) Log.d(TAG, locale.length + " bytes of locale data"); 43279ec80db70d788f35aa13346e4684ecbd401bd84Christopher Tate out.writeInt(locale.length); 43379ec80db70d788f35aa13346e4684ecbd401bd84Christopher Tate out.write(locale); 4342efd2dbbac9eac89620683696c6076463c3a1cd6Christopher Tate if (DEBUG_BACKUP) Log.d(TAG, wifiSupplicantData.length + " bytes of wifi supplicant data"); 43579ec80db70d788f35aa13346e4684ecbd401bd84Christopher Tate out.writeInt(wifiSupplicantData.length); 43679ec80db70d788f35aa13346e4684ecbd401bd84Christopher Tate out.write(wifiSupplicantData); 4372efd2dbbac9eac89620683696c6076463c3a1cd6Christopher Tate if (DEBUG_BACKUP) Log.d(TAG, wifiConfigData.length + " bytes of wifi config data"); 43879ec80db70d788f35aa13346e4684ecbd401bd84Christopher Tate out.writeInt(wifiConfigData.length); 43979ec80db70d788f35aa13346e4684ecbd401bd84Christopher Tate out.write(wifiConfigData); 44079ec80db70d788f35aa13346e4684ecbd401bd84Christopher Tate 44179ec80db70d788f35aa13346e4684ecbd401bd84Christopher Tate out.flush(); // also flushes downstream 44279ec80db70d788f35aa13346e4684ecbd401bd84Christopher Tate 44379ec80db70d788f35aa13346e4684ecbd401bd84Christopher Tate // now we're set to emit the tar stream 44479ec80db70d788f35aa13346e4684ecbd401bd84Christopher Tate fullBackupFile(stage, data); 44579ec80db70d788f35aa13346e4684ecbd401bd84Christopher Tate } finally { 44679ec80db70d788f35aa13346e4684ecbd401bd84Christopher Tate stage.delete(); 44779ec80db70d788f35aa13346e4684ecbd401bd84Christopher Tate } 44879ec80db70d788f35aa13346e4684ecbd401bd84Christopher Tate } 44979ec80db70d788f35aa13346e4684ecbd401bd84Christopher Tate 45079ec80db70d788f35aa13346e4684ecbd401bd84Christopher Tate @Override 45175a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate public void onRestoreFile(ParcelFileDescriptor data, long size, 45275a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate int type, String domain, String relpath, long mode, long mtime) 45375a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate throws IOException { 45475a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate if (DEBUG_BACKUP) Log.d(TAG, "onRestoreFile() invoked"); 45575a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate // Our data is actually a blob of flattened settings data identical to that 45675a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate // produced during incremental backups. Just unpack and apply it all in 45775a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate // turn. 45875a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate FileInputStream instream = new FileInputStream(data.getFileDescriptor()); 45975a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate DataInputStream in = new DataInputStream(instream); 46075a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate 46175a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate int version = in.readInt(); 46275a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate if (DEBUG_BACKUP) Log.d(TAG, "Flattened data version " + version); 46366488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate if (version <= FULL_BACKUP_VERSION) { 46466488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate // Generate the moved-to-global lookup table 46566488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate HashSet<String> movedToGlobal = new HashSet<String>(); 46666488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate Settings.System.getMovedKeys(movedToGlobal); 46766488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate Settings.Secure.getMovedKeys(movedToGlobal); 46866488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate 46975a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate // system settings data first 47075a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate int nBytes = in.readInt(); 47175a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate if (DEBUG_BACKUP) Log.d(TAG, nBytes + " bytes of settings data"); 47275a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate byte[] buffer = new byte[nBytes]; 4732efd2dbbac9eac89620683696c6076463c3a1cd6Christopher Tate in.readFully(buffer, 0, nBytes); 47466488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate restoreSettings(buffer, nBytes, Settings.System.CONTENT_URI, movedToGlobal); 47575a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate 47675a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate // secure settings 47775a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate nBytes = in.readInt(); 47875a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate if (DEBUG_BACKUP) Log.d(TAG, nBytes + " bytes of secure settings data"); 47975a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate if (nBytes > buffer.length) buffer = new byte[nBytes]; 4802efd2dbbac9eac89620683696c6076463c3a1cd6Christopher Tate in.readFully(buffer, 0, nBytes); 48166488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate restoreSettings(buffer, nBytes, Settings.Secure.CONTENT_URI, movedToGlobal); 48266488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate 48366488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate // Global only if sufficiently new 48466488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate if (version >= FULL_BACKUP_ADDED_GLOBAL) { 48566488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate nBytes = in.readInt(); 48666488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate if (DEBUG_BACKUP) Log.d(TAG, nBytes + " bytes of global settings data"); 48766488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate if (nBytes > buffer.length) buffer = new byte[nBytes]; 48866488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate in.readFully(buffer, 0, nBytes); 48966488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate movedToGlobal.clear(); // no redirection; this *is* the global namespace 49066488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate restoreSettings(buffer, nBytes, Settings.Global.CONTENT_URI, movedToGlobal); 49166488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate } 49275a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate 49375a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate // locale 49475a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate nBytes = in.readInt(); 49575a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate if (DEBUG_BACKUP) Log.d(TAG, nBytes + " bytes of locale data"); 49675a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate if (nBytes > buffer.length) buffer = new byte[nBytes]; 4972efd2dbbac9eac89620683696c6076463c3a1cd6Christopher Tate in.readFully(buffer, 0, nBytes); 49875a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate mSettingsHelper.setLocaleData(buffer, nBytes); 49975a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate 50075a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate // wifi supplicant 50175a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate nBytes = in.readInt(); 50275a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate if (DEBUG_BACKUP) Log.d(TAG, nBytes + " bytes of wifi supplicant data"); 50375a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate if (nBytes > buffer.length) buffer = new byte[nBytes]; 5042efd2dbbac9eac89620683696c6076463c3a1cd6Christopher Tate in.readFully(buffer, 0, nBytes); 50575a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate int retainedWifiState = enableWifi(false); 50675a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate restoreWifiSupplicant(FILE_WIFI_SUPPLICANT, buffer, nBytes); 50775a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate FileUtils.setPermissions(FILE_WIFI_SUPPLICANT, 50875a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate FileUtils.S_IRUSR | FileUtils.S_IWUSR | 50975a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate FileUtils.S_IRGRP | FileUtils.S_IWGRP, 51075a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate Process.myUid(), Process.WIFI_UID); 51175a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate // retain the previous WIFI state. 51275a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate enableWifi(retainedWifiState == WifiManager.WIFI_STATE_ENABLED || 51375a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate retainedWifiState == WifiManager.WIFI_STATE_ENABLING); 51475a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate 51575a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate // wifi config 51675a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate nBytes = in.readInt(); 51775a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate if (DEBUG_BACKUP) Log.d(TAG, nBytes + " bytes of wifi config data"); 51875a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate if (nBytes > buffer.length) buffer = new byte[nBytes]; 5192efd2dbbac9eac89620683696c6076463c3a1cd6Christopher Tate in.readFully(buffer, 0, nBytes); 52075a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate restoreFileData(mWifiConfigFile, buffer, nBytes); 52175a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate 52275a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate if (DEBUG_BACKUP) Log.d(TAG, "Full restore complete."); 52375a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate } else { 52475a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate data.close(); 52575a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate throw new IOException("Invalid file schema"); 52675a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate } 52775a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate } 52875a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate 529d158214511a3c04753de04fa6389e46d33135c38Amith Yamasani private long[] readOldChecksums(ParcelFileDescriptor oldState) throws IOException { 530d158214511a3c04753de04fa6389e46d33135c38Amith Yamasani long[] stateChecksums = new long[STATE_SIZE]; 531d158214511a3c04753de04fa6389e46d33135c38Amith Yamasani 532d158214511a3c04753de04fa6389e46d33135c38Amith Yamasani DataInputStream dataInput = new DataInputStream( 533d158214511a3c04753de04fa6389e46d33135c38Amith Yamasani new FileInputStream(oldState.getFileDescriptor())); 534a286f419084d56217f05a64f1d24c9e07917212eChristopher Tate 535a286f419084d56217f05a64f1d24c9e07917212eChristopher Tate try { 536a286f419084d56217f05a64f1d24c9e07917212eChristopher Tate int stateVersion = dataInput.readInt(); 53766488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate for (int i = 0; i < STATE_SIZES[stateVersion]; i++) { 53866488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate stateChecksums[i] = dataInput.readLong(); 539d158214511a3c04753de04fa6389e46d33135c38Amith Yamasani } 540a286f419084d56217f05a64f1d24c9e07917212eChristopher Tate } catch (EOFException eof) { 541a286f419084d56217f05a64f1d24c9e07917212eChristopher Tate // With the default 0 checksum we'll wind up forcing a backup of 542a286f419084d56217f05a64f1d24c9e07917212eChristopher Tate // any unhandled data sets, which is appropriate. 543d158214511a3c04753de04fa6389e46d33135c38Amith Yamasani } 544d158214511a3c04753de04fa6389e46d33135c38Amith Yamasani dataInput.close(); 545d158214511a3c04753de04fa6389e46d33135c38Amith Yamasani return stateChecksums; 546d158214511a3c04753de04fa6389e46d33135c38Amith Yamasani } 547d158214511a3c04753de04fa6389e46d33135c38Amith Yamasani 548d158214511a3c04753de04fa6389e46d33135c38Amith Yamasani private void writeNewChecksums(long[] checksums, ParcelFileDescriptor newState) 549d158214511a3c04753de04fa6389e46d33135c38Amith Yamasani throws IOException { 550d158214511a3c04753de04fa6389e46d33135c38Amith Yamasani DataOutputStream dataOutput = new DataOutputStream( 551d158214511a3c04753de04fa6389e46d33135c38Amith Yamasani new FileOutputStream(newState.getFileDescriptor())); 552a286f419084d56217f05a64f1d24c9e07917212eChristopher Tate 553a286f419084d56217f05a64f1d24c9e07917212eChristopher Tate dataOutput.writeInt(STATE_VERSION); 554d158214511a3c04753de04fa6389e46d33135c38Amith Yamasani for (int i = 0; i < STATE_SIZE; i++) { 555d158214511a3c04753de04fa6389e46d33135c38Amith Yamasani dataOutput.writeLong(checksums[i]); 556d158214511a3c04753de04fa6389e46d33135c38Amith Yamasani } 557d158214511a3c04753de04fa6389e46d33135c38Amith Yamasani dataOutput.close(); 558d158214511a3c04753de04fa6389e46d33135c38Amith Yamasani } 559d158214511a3c04753de04fa6389e46d33135c38Amith Yamasani 560d158214511a3c04753de04fa6389e46d33135c38Amith Yamasani private long writeIfChanged(long oldChecksum, String key, byte[] data, 561d158214511a3c04753de04fa6389e46d33135c38Amith Yamasani BackupDataOutput output) { 562d158214511a3c04753de04fa6389e46d33135c38Amith Yamasani CRC32 checkSummer = new CRC32(); 563d158214511a3c04753de04fa6389e46d33135c38Amith Yamasani checkSummer.update(data); 564d158214511a3c04753de04fa6389e46d33135c38Amith Yamasani long newChecksum = checkSummer.getValue(); 565d158214511a3c04753de04fa6389e46d33135c38Amith Yamasani if (oldChecksum == newChecksum) { 566d158214511a3c04753de04fa6389e46d33135c38Amith Yamasani return oldChecksum; 567d158214511a3c04753de04fa6389e46d33135c38Amith Yamasani } 568d158214511a3c04753de04fa6389e46d33135c38Amith Yamasani try { 569d158214511a3c04753de04fa6389e46d33135c38Amith Yamasani output.writeEntityHeader(key, data.length); 570d158214511a3c04753de04fa6389e46d33135c38Amith Yamasani output.writeEntityData(data, data.length); 571d158214511a3c04753de04fa6389e46d33135c38Amith Yamasani } catch (IOException ioe) { 572d158214511a3c04753de04fa6389e46d33135c38Amith Yamasani // Bail 573d158214511a3c04753de04fa6389e46d33135c38Amith Yamasani } 574d158214511a3c04753de04fa6389e46d33135c38Amith Yamasani return newChecksum; 575d158214511a3c04753de04fa6389e46d33135c38Amith Yamasani } 576d158214511a3c04753de04fa6389e46d33135c38Amith Yamasani 577220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani private byte[] getSystemSettings() { 578a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov Cursor cursor = getContentResolver().query(Settings.System.CONTENT_URI, PROJECTION, null, 579a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov null, null); 5801d8e7d640ad5ed6fe82bca017293dd89169f1c2eJeff Brown try { 5811d8e7d640ad5ed6fe82bca017293dd89169f1c2eJeff Brown return extractRelevantValues(cursor, Settings.System.SETTINGS_TO_BACKUP); 5821d8e7d640ad5ed6fe82bca017293dd89169f1c2eJeff Brown } finally { 5831d8e7d640ad5ed6fe82bca017293dd89169f1c2eJeff Brown cursor.close(); 5841d8e7d640ad5ed6fe82bca017293dd89169f1c2eJeff Brown } 585220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani } 586220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani 587220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani private byte[] getSecureSettings() { 588a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov Cursor cursor = getContentResolver().query(Settings.Secure.CONTENT_URI, PROJECTION, null, 589a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov null, null); 5901d8e7d640ad5ed6fe82bca017293dd89169f1c2eJeff Brown try { 5911d8e7d640ad5ed6fe82bca017293dd89169f1c2eJeff Brown return extractRelevantValues(cursor, Settings.Secure.SETTINGS_TO_BACKUP); 5921d8e7d640ad5ed6fe82bca017293dd89169f1c2eJeff Brown } finally { 5931d8e7d640ad5ed6fe82bca017293dd89169f1c2eJeff Brown cursor.close(); 5941d8e7d640ad5ed6fe82bca017293dd89169f1c2eJeff Brown } 595220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani } 596220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani 59766488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate private byte[] getGlobalSettings() { 59866488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate Cursor cursor = getContentResolver().query(Settings.Global.CONTENT_URI, PROJECTION, null, 59966488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate null, null); 60066488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate try { 60166488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate return extractRelevantValues(cursor, Settings.Global.SETTINGS_TO_BACKUP); 60266488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate } finally { 60366488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate cursor.close(); 60466488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate } 60566488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate } 60666488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate 60766488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate private void restoreSettings(BackupDataInput data, Uri contentUri, 60866488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate HashSet<String> movedToGlobal) { 60975a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate byte[] settings = new byte[data.getDataSize()]; 61075a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate try { 61175a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate data.readEntityData(settings, 0, settings.length); 61275a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate } catch (IOException ioe) { 61375a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate Log.e(TAG, "Couldn't read entity data"); 61475a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate return; 61575a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate } 61666488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate restoreSettings(settings, settings.length, contentUri, movedToGlobal); 61775a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate } 61875a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate 61966488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate private void restoreSettings(byte[] settings, int bytes, Uri contentUri, 62066488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate HashSet<String> movedToGlobal) { 621a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov if (DEBUG) { 622a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov Log.i(TAG, "restoreSettings: " + contentUri); 623a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov } 624a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov 62566488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate // Figure out the white list and redirects to the global table. 626796e0f0ed531b7ff9922cd632d70d8f1da8f5829Christopher Tate String[] whitelist = null; 627796e0f0ed531b7ff9922cd632d70d8f1da8f5829Christopher Tate if (contentUri.equals(Settings.Secure.CONTENT_URI)) { 628796e0f0ed531b7ff9922cd632d70d8f1da8f5829Christopher Tate whitelist = Settings.Secure.SETTINGS_TO_BACKUP; 629796e0f0ed531b7ff9922cd632d70d8f1da8f5829Christopher Tate } else if (contentUri.equals(Settings.System.CONTENT_URI)) { 630796e0f0ed531b7ff9922cd632d70d8f1da8f5829Christopher Tate whitelist = Settings.System.SETTINGS_TO_BACKUP; 63166488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate } else if (contentUri.equals(Settings.Global.CONTENT_URI)) { 63266488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate whitelist = Settings.Global.SETTINGS_TO_BACKUP; 633a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov } else { 634a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov throw new IllegalArgumentException("Unknown URI: " + contentUri); 635796e0f0ed531b7ff9922cd632d70d8f1da8f5829Christopher Tate } 636796e0f0ed531b7ff9922cd632d70d8f1da8f5829Christopher Tate 637a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov // Restore only the white list data. 638220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani int pos = 0; 639a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov Map<String, String> cachedEntries = new HashMap<String, String>(); 640a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov ContentValues contentValues = new ContentValues(2); 641a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov SettingsHelper settingsHelper = mSettingsHelper; 642a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov 643a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov final int whiteListSize = whitelist.length; 644a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov for (int i = 0; i < whiteListSize; i++) { 645a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov String key = whitelist[i]; 646a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov String value = cachedEntries.remove(key); 647a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov 648a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov // If the value not cached, let us look it up. 649a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov if (value == null) { 650a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov while (pos < bytes) { 651a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov int length = readInt(settings, pos); 652a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov pos += INTEGER_BYTE_COUNT; 653a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov String dataKey = length > 0 ? new String(settings, pos, length) : null; 654a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov pos += length; 655a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov length = readInt(settings, pos); 656a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov pos += INTEGER_BYTE_COUNT; 657a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov String dataValue = length > 0 ? new String(settings, pos, length) : null; 658a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov pos += length; 659a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov if (key.equals(dataKey)) { 660a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov value = dataValue; 661a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov break; 662a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov } 663a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov cachedEntries.put(dataKey, dataValue); 6640738e8893540e8f7fac7c193be5fe24b67f04672Christopher Tate } 665a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov } 6660738e8893540e8f7fac7c193be5fe24b67f04672Christopher Tate 667a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov if (value == null) { 668a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov continue; 669220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani } 670220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani 6713543beb255b30c294283270ede3fcf048dc71b02Christopher Tate final Uri destination = (movedToGlobal != null && movedToGlobal.contains(key)) 67266488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate ? Settings.Global.CONTENT_URI 67366488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate : contentUri; 67466488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate 67566488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate // The helper doesn't care what namespace the keys are in 676a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov if (settingsHelper.restoreValue(key, value)) { 677a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov contentValues.clear(); 678a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov contentValues.put(Settings.NameValueTable.NAME, key); 679a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov contentValues.put(Settings.NameValueTable.VALUE, value); 68066488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate getContentResolver().insert(destination, contentValues); 681a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov } 682796e0f0ed531b7ff9922cd632d70d8f1da8f5829Christopher Tate 683d488bc0ef494718e82a77b2e9433c2480e7383b0Christopher Tate if (DEBUG) { 68466488d64df8c3cf8722b8bf282398617cf3c0551Christopher Tate Log.d(TAG, "Restored setting: " + destination + " : "+ key + "=" + value); 6850738e8893540e8f7fac7c193be5fe24b67f04672Christopher Tate } 6860738e8893540e8f7fac7c193be5fe24b67f04672Christopher Tate } 687220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani } 688220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani 689220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani /** 690a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov * Given a cursor and a set of keys, extract the required keys and 691a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov * values and write them to a byte array. 692a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov * 693a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov * @param cursor A cursor with settings data. 694a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov * @param settings The settings to extract. 695a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov * @return The byte array of extracted values. 696220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani */ 697a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov private byte[] extractRelevantValues(Cursor cursor, String[] settings) { 698a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov final int settingsCount = settings.length; 699a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov byte[][] values = new byte[settingsCount * 2][]; // keys and values 700a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov if (!cursor.moveToFirst()) { 701220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani Log.e(TAG, "Couldn't read from the cursor"); 702220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani return new byte[0]; 703220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani } 704a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov 705a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov // Obtain the relevant data in a temporary array. 706220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani int totalSize = 0; 707a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov int backedUpSettingIndex = 0; 708a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov Map<String, String> cachedEntries = new HashMap<String, String>(); 709a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov for (int i = 0; i < settingsCount; i++) { 710a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov String key = settings[i]; 711a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov String value = cachedEntries.remove(key); 712a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov 713a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov // If the value not cached, let us look it up. 714a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov if (value == null) { 715a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov while (!cursor.isAfterLast()) { 716a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov String cursorKey = cursor.getString(COLUMN_NAME); 717a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov String cursorValue = cursor.getString(COLUMN_VALUE); 718a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov cursor.moveToNext(); 719a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov if (key.equals(cursorKey)) { 720a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov value = cursorValue; 721a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov break; 722a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov } 723a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov cachedEntries.put(cursorKey, cursorValue); 724220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani } 725220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani } 726a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov 727a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov if (value == null) { 728a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov continue; 729a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov } 730a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov 731a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov // Write the key and value in the intermediary array. 732a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov byte[] keyBytes = key.getBytes(); 733a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov totalSize += INTEGER_BYTE_COUNT + keyBytes.length; 734a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov values[backedUpSettingIndex * 2] = keyBytes; 735a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov 736a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov byte[] valueBytes = value.getBytes(); 737a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov totalSize += INTEGER_BYTE_COUNT + valueBytes.length; 738a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov values[backedUpSettingIndex * 2 + 1] = valueBytes; 739a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov 740a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov backedUpSettingIndex++; 741a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov 742a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov if (DEBUG) { 743a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov Log.d(TAG, "Backed up setting: " + key + "=" + value); 744220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani } 745220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani } 746220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani 747a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov // Aggregate the result. 748220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani byte[] result = new byte[totalSize]; 749220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani int pos = 0; 750a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov final int keyValuePairCount = backedUpSettingIndex * 2; 751a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov for (int i = 0; i < keyValuePairCount; i++) { 752a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov pos = writeInt(result, pos, values[i].length); 753a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov pos = writeBytes(result, pos, values[i]); 754220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani } 755220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani return result; 756220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani } 757220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani 7584aeca7c5908387bc7efb0785830aea1053264062Irfan Sheriff private byte[] getFileData(String filename) { 7594aeca7c5908387bc7efb0785830aea1053264062Irfan Sheriff InputStream is = null; 7604aeca7c5908387bc7efb0785830aea1053264062Irfan Sheriff try { 7614aeca7c5908387bc7efb0785830aea1053264062Irfan Sheriff File file = new File(filename); 7624aeca7c5908387bc7efb0785830aea1053264062Irfan Sheriff is = new FileInputStream(file); 7634aeca7c5908387bc7efb0785830aea1053264062Irfan Sheriff 7644aeca7c5908387bc7efb0785830aea1053264062Irfan Sheriff //Will truncate read on a very long file, 7654aeca7c5908387bc7efb0785830aea1053264062Irfan Sheriff //should not happen for a config file 7664aeca7c5908387bc7efb0785830aea1053264062Irfan Sheriff byte[] bytes = new byte[(int)file.length()]; 7674aeca7c5908387bc7efb0785830aea1053264062Irfan Sheriff 7684aeca7c5908387bc7efb0785830aea1053264062Irfan Sheriff int offset = 0; 7694aeca7c5908387bc7efb0785830aea1053264062Irfan Sheriff int numRead = 0; 7704aeca7c5908387bc7efb0785830aea1053264062Irfan Sheriff while (offset < bytes.length 7714aeca7c5908387bc7efb0785830aea1053264062Irfan Sheriff && (numRead=is.read(bytes, offset, bytes.length-offset)) >= 0) { 7724aeca7c5908387bc7efb0785830aea1053264062Irfan Sheriff offset += numRead; 7734aeca7c5908387bc7efb0785830aea1053264062Irfan Sheriff } 7744aeca7c5908387bc7efb0785830aea1053264062Irfan Sheriff 7754aeca7c5908387bc7efb0785830aea1053264062Irfan Sheriff //read failure 7764aeca7c5908387bc7efb0785830aea1053264062Irfan Sheriff if (offset < bytes.length) { 7774aeca7c5908387bc7efb0785830aea1053264062Irfan Sheriff Log.w(TAG, "Couldn't backup " + filename); 7784aeca7c5908387bc7efb0785830aea1053264062Irfan Sheriff return EMPTY_DATA; 7794aeca7c5908387bc7efb0785830aea1053264062Irfan Sheriff } 7804aeca7c5908387bc7efb0785830aea1053264062Irfan Sheriff return bytes; 7814aeca7c5908387bc7efb0785830aea1053264062Irfan Sheriff } catch (IOException ioe) { 7824aeca7c5908387bc7efb0785830aea1053264062Irfan Sheriff Log.w(TAG, "Couldn't backup " + filename); 7834aeca7c5908387bc7efb0785830aea1053264062Irfan Sheriff return EMPTY_DATA; 7844aeca7c5908387bc7efb0785830aea1053264062Irfan Sheriff } finally { 7854aeca7c5908387bc7efb0785830aea1053264062Irfan Sheriff if (is != null) { 7864aeca7c5908387bc7efb0785830aea1053264062Irfan Sheriff try { 7874aeca7c5908387bc7efb0785830aea1053264062Irfan Sheriff is.close(); 7884aeca7c5908387bc7efb0785830aea1053264062Irfan Sheriff } catch (IOException e) { 7894aeca7c5908387bc7efb0785830aea1053264062Irfan Sheriff } 7904aeca7c5908387bc7efb0785830aea1053264062Irfan Sheriff } 7914aeca7c5908387bc7efb0785830aea1053264062Irfan Sheriff } 7924aeca7c5908387bc7efb0785830aea1053264062Irfan Sheriff 7934aeca7c5908387bc7efb0785830aea1053264062Irfan Sheriff } 7944aeca7c5908387bc7efb0785830aea1053264062Irfan Sheriff 79575a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate private void restoreFileData(String filename, byte[] bytes, int size) { 7964aeca7c5908387bc7efb0785830aea1053264062Irfan Sheriff try { 7974aeca7c5908387bc7efb0785830aea1053264062Irfan Sheriff File file = new File(filename); 7984aeca7c5908387bc7efb0785830aea1053264062Irfan Sheriff if (file.exists()) file.delete(); 7994aeca7c5908387bc7efb0785830aea1053264062Irfan Sheriff 8004aeca7c5908387bc7efb0785830aea1053264062Irfan Sheriff OutputStream os = new BufferedOutputStream(new FileOutputStream(filename, true)); 80175a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate os.write(bytes, 0, size); 8024aeca7c5908387bc7efb0785830aea1053264062Irfan Sheriff os.close(); 8034aeca7c5908387bc7efb0785830aea1053264062Irfan Sheriff } catch (IOException ioe) { 8044aeca7c5908387bc7efb0785830aea1053264062Irfan Sheriff Log.w(TAG, "Couldn't restore " + filename); 8054aeca7c5908387bc7efb0785830aea1053264062Irfan Sheriff } 8064aeca7c5908387bc7efb0785830aea1053264062Irfan Sheriff } 8074aeca7c5908387bc7efb0785830aea1053264062Irfan Sheriff 8084aeca7c5908387bc7efb0785830aea1053264062Irfan Sheriff 8092cfab8445851c59f7da07d81645ece8d70e8ce28Amith Yamasani private byte[] getWifiSupplicant(String filename) { 8107078789a39f51e473bdf864e16202f67ce8ca219Brad Fitzpatrick BufferedReader br = null; 811220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani try { 812220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani File file = new File(filename); 813220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani if (file.exists()) { 8147078789a39f51e473bdf864e16202f67ce8ca219Brad Fitzpatrick br = new BufferedReader(new FileReader(file)); 8152cfab8445851c59f7da07d81645ece8d70e8ce28Amith Yamasani StringBuffer relevantLines = new StringBuffer(); 8162cfab8445851c59f7da07d81645ece8d70e8ce28Amith Yamasani boolean started = false; 8172cfab8445851c59f7da07d81645ece8d70e8ce28Amith Yamasani String line; 8182cfab8445851c59f7da07d81645ece8d70e8ce28Amith Yamasani while ((line = br.readLine()) != null) { 8192cfab8445851c59f7da07d81645ece8d70e8ce28Amith Yamasani if (!started && line.startsWith("network")) { 8202cfab8445851c59f7da07d81645ece8d70e8ce28Amith Yamasani started = true; 8212cfab8445851c59f7da07d81645ece8d70e8ce28Amith Yamasani } 8222cfab8445851c59f7da07d81645ece8d70e8ce28Amith Yamasani if (started) { 8232cfab8445851c59f7da07d81645ece8d70e8ce28Amith Yamasani relevantLines.append(line).append("\n"); 8242cfab8445851c59f7da07d81645ece8d70e8ce28Amith Yamasani } 8252cfab8445851c59f7da07d81645ece8d70e8ce28Amith Yamasani } 8262cfab8445851c59f7da07d81645ece8d70e8ce28Amith Yamasani if (relevantLines.length() > 0) { 8272cfab8445851c59f7da07d81645ece8d70e8ce28Amith Yamasani return relevantLines.toString().getBytes(); 8282cfab8445851c59f7da07d81645ece8d70e8ce28Amith Yamasani } else { 8292cfab8445851c59f7da07d81645ece8d70e8ce28Amith Yamasani return EMPTY_DATA; 8302cfab8445851c59f7da07d81645ece8d70e8ce28Amith Yamasani } 831220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani } else { 832d158214511a3c04753de04fa6389e46d33135c38Amith Yamasani return EMPTY_DATA; 833220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani } 834220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani } catch (IOException ioe) { 835220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani Log.w(TAG, "Couldn't backup " + filename); 836d158214511a3c04753de04fa6389e46d33135c38Amith Yamasani return EMPTY_DATA; 8377078789a39f51e473bdf864e16202f67ce8ca219Brad Fitzpatrick } finally { 8387078789a39f51e473bdf864e16202f67ce8ca219Brad Fitzpatrick if (br != null) { 8397078789a39f51e473bdf864e16202f67ce8ca219Brad Fitzpatrick try { 8407078789a39f51e473bdf864e16202f67ce8ca219Brad Fitzpatrick br.close(); 8417078789a39f51e473bdf864e16202f67ce8ca219Brad Fitzpatrick } catch (IOException e) { 8427078789a39f51e473bdf864e16202f67ce8ca219Brad Fitzpatrick } 8437078789a39f51e473bdf864e16202f67ce8ca219Brad Fitzpatrick } 844220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani } 845220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani } 846220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani 84775a99709accef8cf221fd436d646727e7c8dd1f1Christopher Tate private void restoreWifiSupplicant(String filename, byte[] bytes, int size) { 848220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani try { 8498dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate WifiNetworkSettings supplicantImage = new WifiNetworkSettings(); 8508dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate 8512cfab8445851c59f7da07d81645ece8d70e8ce28Amith Yamasani File supplicantFile = new File(FILE_WIFI_SUPPLICANT); 8528dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate if (supplicantFile.exists()) { 8538dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate // Retain the existing APs; we'll append the restored ones to them 8548dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate BufferedReader in = new BufferedReader(new FileReader(FILE_WIFI_SUPPLICANT)); 8558dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate supplicantImage.readNetworks(in); 8568dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate in.close(); 8572cfab8445851c59f7da07d81645ece8d70e8ce28Amith Yamasani 8588dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate supplicantFile.delete(); 8598dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate } 8608dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate 8618dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate // Incorporate the restore AP information 8628dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate if (size > 0) { 8638dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate char[] restoredAsBytes = new char[size]; 8648dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate for (int i = 0; i < size; i++) restoredAsBytes[i] = (char) bytes[i]; 8658dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate BufferedReader in = new BufferedReader(new CharArrayReader(restoredAsBytes)); 8668dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate supplicantImage.readNetworks(in); 8678dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate 8688dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate if (DEBUG_BACKUP) { 8698dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate Log.v(TAG, "Final AP list:"); 8708dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate supplicantImage.dump(); 8718dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate } 8728dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate } 8738dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate 8748dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate // Install the correct default template 8758dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate BufferedWriter bw = new BufferedWriter(new FileWriter(FILE_WIFI_SUPPLICANT)); 8768dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate copyWifiSupplicantTemplate(bw); 8778dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate 8788dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate // Write the restored supplicant config and we're done 8798dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate supplicantImage.write(bw); 8808dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate bw.close(); 881220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani } catch (IOException ioe) { 882220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani Log.w(TAG, "Couldn't restore " + filename); 883220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani } 884220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani } 885220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani 8868dfe2b9dd7b8b924177a9f67785bcd6d1b0eeadaChristopher Tate private void copyWifiSupplicantTemplate(BufferedWriter bw) { 8872cfab8445851c59f7da07d81645ece8d70e8ce28Amith Yamasani try { 8882cfab8445851c59f7da07d81645ece8d70e8ce28Amith Yamasani BufferedReader br = new BufferedReader(new FileReader(FILE_WIFI_SUPPLICANT_TEMPLATE)); 8892cfab8445851c59f7da07d81645ece8d70e8ce28Amith Yamasani char[] temp = new char[1024]; 8902cfab8445851c59f7da07d81645ece8d70e8ce28Amith Yamasani int size; 8912cfab8445851c59f7da07d81645ece8d70e8ce28Amith Yamasani while ((size = br.read(temp)) > 0) { 8922cfab8445851c59f7da07d81645ece8d70e8ce28Amith Yamasani bw.write(temp, 0, size); 8932cfab8445851c59f7da07d81645ece8d70e8ce28Amith Yamasani } 8942cfab8445851c59f7da07d81645ece8d70e8ce28Amith Yamasani br.close(); 8952cfab8445851c59f7da07d81645ece8d70e8ce28Amith Yamasani } catch (IOException ioe) { 8962cfab8445851c59f7da07d81645ece8d70e8ce28Amith Yamasani Log.w(TAG, "Couldn't copy wpa_supplicant file"); 8972cfab8445851c59f7da07d81645ece8d70e8ce28Amith Yamasani } 8982cfab8445851c59f7da07d81645ece8d70e8ce28Amith Yamasani } 8992cfab8445851c59f7da07d81645ece8d70e8ce28Amith Yamasani 900220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani /** 901220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani * Write an int in BigEndian into the byte array. 902220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani * @param out byte array 903220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani * @param pos current pos in array 904220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani * @param value integer to write 905a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov * @return the index after adding the size of an int (4) in bytes. 906220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani */ 907220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani private int writeInt(byte[] out, int pos, int value) { 908220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani out[pos + 0] = (byte) ((value >> 24) & 0xFF); 909220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani out[pos + 1] = (byte) ((value >> 16) & 0xFF); 910220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani out[pos + 2] = (byte) ((value >> 8) & 0xFF); 911220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani out[pos + 3] = (byte) ((value >> 0) & 0xFF); 912a571a5836cdbc71feefb13648004b8ca7fe05dfbSvetoslav Ganov return pos + INTEGER_BYTE_COUNT; 913220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani } 914220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani 915220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani private int writeBytes(byte[] out, int pos, byte[] value) { 916220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani System.arraycopy(value, 0, out, pos, value.length); 917220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani return pos + value.length; 918220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani } 919220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani 920220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani private int readInt(byte[] in, int pos) { 921220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani int result = 922220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani ((in[pos ] & 0xFF) << 24) | 923220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani ((in[pos + 1] & 0xFF) << 16) | 924220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani ((in[pos + 2] & 0xFF) << 8) | 925220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani ((in[pos + 3] & 0xFF) << 0); 926220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani return result; 927220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani } 928220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani 929c5b5b0fb94d078148b5fe5f6b8bb4ee361949f3eChristian Sonntag private int enableWifi(boolean enable) { 9304f4f5166c9379a646de887c4d9ae58fc94afb6edIrfan Sheriff if (mWfm == null) { 9314f4f5166c9379a646de887c4d9ae58fc94afb6edIrfan Sheriff mWfm = (WifiManager) getSystemService(Context.WIFI_SERVICE); 9324f4f5166c9379a646de887c4d9ae58fc94afb6edIrfan Sheriff } 9334aeca7c5908387bc7efb0785830aea1053264062Irfan Sheriff if (mWfm != null) { 9344aeca7c5908387bc7efb0785830aea1053264062Irfan Sheriff int state = mWfm.getWifiState(); 9354aeca7c5908387bc7efb0785830aea1053264062Irfan Sheriff mWfm.setWifiEnabled(enable); 936c5b5b0fb94d078148b5fe5f6b8bb4ee361949f3eChristian Sonntag return state; 9374f4f5166c9379a646de887c4d9ae58fc94afb6edIrfan Sheriff } else { 9384f4f5166c9379a646de887c4d9ae58fc94afb6edIrfan Sheriff Log.e(TAG, "Failed to fetch WifiManager instance"); 939220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani } 940c5b5b0fb94d078148b5fe5f6b8bb4ee361949f3eChristian Sonntag return WifiManager.WIFI_STATE_UNKNOWN; 941220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani } 942220f4d633be1098e7887dbd06f179138bf19f1adAmith Yamasani} 943