mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
271 lines
8.3 KiB
Java
271 lines
8.3 KiB
Java
/* ***** BEGIN LICENSE BLOCK *****
|
|
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
|
|
*
|
|
* The contents of this file are subject to the Mozilla Public License Version
|
|
* 1.1 (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.mozilla.org/MPL/
|
|
*
|
|
* Software distributed under the License is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
|
|
* for the specific language governing rights and limitations under the
|
|
* License.
|
|
*
|
|
* The Original Code is Android Sync Client.
|
|
*
|
|
* The Initial Developer of the Original Code is
|
|
* the Mozilla Foundation.
|
|
* Portions created by the Initial Developer are Copyright (C) 2011
|
|
* the Initial Developer. All Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
* Jason Voll <jvoll@mozilla.com>
|
|
* Richard Newman <rnewman@mozilla.com>
|
|
*
|
|
* Alternatively, the contents of this file may be used under the terms of
|
|
* either the GNU General Public License Version 2 or later (the "GPL"), or
|
|
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
|
|
* in which case the provisions of the GPL or the LGPL are applicable instead
|
|
* of those above. If you wish to allow use of your version of this file only
|
|
* under the terms of either the GPL or the LGPL, and not to allow others to
|
|
* use your version of this file under the terms of the MPL, indicate your
|
|
* decision by deleting the provisions above and replace them with the notice
|
|
* and other provisions required by the GPL or the LGPL. If you do not delete
|
|
* the provisions above, a recipient may use your version of this file under
|
|
* the terms of any one of the MPL, the GPL or the LGPL.
|
|
*
|
|
* ***** END LICENSE BLOCK ***** */
|
|
|
|
package org.mozilla.gecko.sync;
|
|
|
|
import java.io.UnsupportedEncodingException;
|
|
import java.math.BigDecimal;
|
|
import java.math.BigInteger;
|
|
import java.security.MessageDigest;
|
|
import java.security.NoSuchAlgorithmException;
|
|
import java.security.SecureRandom;
|
|
import java.util.ArrayList;
|
|
import java.util.Locale;
|
|
import java.util.TreeMap;
|
|
|
|
import org.json.simple.JSONArray;
|
|
import org.mozilla.apache.commons.codec.binary.Base32;
|
|
import org.mozilla.apache.commons.codec.binary.Base64;
|
|
|
|
import android.content.Context;
|
|
import android.content.SharedPreferences;
|
|
|
|
public class Utils {
|
|
|
|
private static final String LOG_TAG = "Utils";
|
|
|
|
private static SecureRandom sharedSecureRandom = new SecureRandom();
|
|
|
|
// See <http://developer.android.com/reference/android/content/Context.html#getSharedPreferences%28java.lang.String,%20int%29>
|
|
public static final int SHARED_PREFERENCES_MODE = 0;
|
|
|
|
public static String generateGuid() {
|
|
byte[] encodedBytes = Base64.encodeBase64(generateRandomBytes(9), false);
|
|
return new String(encodedBytes).replace("+", "-").replace("/", "_");
|
|
}
|
|
|
|
/**
|
|
* Helper to generate secure random bytes.
|
|
*
|
|
* @param length
|
|
* Number of bytes to generate.
|
|
*/
|
|
public static byte[] generateRandomBytes(int length) {
|
|
byte[] bytes = new byte[length];
|
|
sharedSecureRandom.nextBytes(bytes);
|
|
return bytes;
|
|
}
|
|
|
|
/**
|
|
* Helper to generate a random integer in a specified range.
|
|
*
|
|
* @param r
|
|
* Generate an integer between 0 and r-1 inclusive.
|
|
*/
|
|
public static BigInteger generateBigIntegerLessThan(BigInteger r) {
|
|
int maxBytes = (int) Math.ceil(((double) r.bitLength()) / 8);
|
|
BigInteger randInt = new BigInteger(generateRandomBytes(maxBytes));
|
|
return randInt.mod(r);
|
|
}
|
|
|
|
/**
|
|
* Helper to reseed the shared secure random number generator.
|
|
*/
|
|
public static void reseedSharedRandom() {
|
|
sharedSecureRandom.setSeed(sharedSecureRandom.generateSeed(8));
|
|
}
|
|
|
|
/**
|
|
* Helper to convert a byte array to a hex-encoded string
|
|
*/
|
|
public static String byte2hex(byte[] b) {
|
|
// StringBuffer should be used instead.
|
|
String hs = "";
|
|
String stmp;
|
|
|
|
for (int n = 0; n < b.length; n++) {
|
|
stmp = java.lang.Integer.toHexString(b[n] & 0XFF);
|
|
|
|
if (stmp.length() == 1) {
|
|
hs = hs + "0" + stmp;
|
|
} else {
|
|
hs = hs + stmp;
|
|
}
|
|
|
|
if (n < b.length - 1) {
|
|
hs = hs + "";
|
|
}
|
|
}
|
|
|
|
return hs;
|
|
}
|
|
|
|
public static byte[] concatAll(byte[] first, byte[]... rest) {
|
|
int totalLength = first.length;
|
|
for (byte[] array : rest) {
|
|
totalLength += array.length;
|
|
}
|
|
|
|
byte[] result = new byte[totalLength];
|
|
int offset = first.length;
|
|
|
|
System.arraycopy(first, 0, result, 0, offset);
|
|
|
|
for (byte[] array : rest) {
|
|
System.arraycopy(array, 0, result, offset, array.length);
|
|
offset += array.length;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* Utility for Base64 decoding. Should ensure that the correct
|
|
* Apache Commons version is used.
|
|
*
|
|
* @param base64
|
|
* An input string. Will be decoded as UTF-8.
|
|
* @return
|
|
* A byte array of decoded values.
|
|
* @throws UnsupportedEncodingException
|
|
* Should not occur.
|
|
*/
|
|
public static byte[] decodeBase64(String base64) throws UnsupportedEncodingException {
|
|
return Base64.decodeBase64(base64.getBytes("UTF-8"));
|
|
}
|
|
|
|
public static byte[] decodeFriendlyBase32(String base32) {
|
|
Base32 converter = new Base32();
|
|
final String translated = base32.replace('8', 'l').replace('9', 'o');
|
|
return converter.decode(translated.toUpperCase());
|
|
}
|
|
|
|
public static byte[] hex2Byte(String str) {
|
|
if (str.length() % 2 == 1) {
|
|
str = "0" + str;
|
|
}
|
|
|
|
byte[] bytes = new byte[str.length() / 2];
|
|
for (int i = 0; i < bytes.length; i++) {
|
|
bytes[i] = (byte) Integer.parseInt(str.substring(2 * i, 2 * i + 2), 16);
|
|
}
|
|
return bytes;
|
|
}
|
|
|
|
public static String millisecondsToDecimalSecondsString(long ms) {
|
|
return new BigDecimal(ms).movePointLeft(3).toString();
|
|
}
|
|
|
|
// This lives until Bug 708956 lands, and we don't have to do it any more.
|
|
public static long decimalSecondsToMilliseconds(String decimal) {
|
|
try {
|
|
return new BigDecimal(decimal).movePointRight(3).longValue();
|
|
} catch (Exception e) {
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
// Oh, Java.
|
|
public static long decimalSecondsToMilliseconds(Double decimal) {
|
|
// Truncates towards 0.
|
|
return (long)(decimal * 1000);
|
|
}
|
|
public static long decimalSecondsToMilliseconds(Long decimal) {
|
|
return decimal * 1000;
|
|
}
|
|
public static long decimalSecondsToMilliseconds(Integer decimal) {
|
|
return (long)(decimal * 1000);
|
|
}
|
|
|
|
public static byte[] sha1(String utf8)
|
|
throws NoSuchAlgorithmException, UnsupportedEncodingException {
|
|
MessageDigest sha1 = MessageDigest.getInstance("SHA-1");
|
|
return sha1.digest(utf8.getBytes("UTF-8"));
|
|
}
|
|
|
|
public static String sha1Base32(String utf8)
|
|
throws NoSuchAlgorithmException, UnsupportedEncodingException {
|
|
return new Base32().encodeAsString(sha1(utf8)).toLowerCase(Locale.US);
|
|
}
|
|
|
|
public static String getPrefsPath(String username, String serverURL)
|
|
throws NoSuchAlgorithmException, UnsupportedEncodingException {
|
|
return "sync.prefs." + sha1Base32(serverURL + ":" + username);
|
|
}
|
|
|
|
public static SharedPreferences getSharedPreferences(Context context, String username, String serverURL) throws NoSuchAlgorithmException, UnsupportedEncodingException {
|
|
String prefsPath = getPrefsPath(username, serverURL);
|
|
Logger.debug(LOG_TAG, "Shared preferences: " + prefsPath);
|
|
return context.getSharedPreferences(prefsPath, SHARED_PREFERENCES_MODE);
|
|
}
|
|
|
|
public static void addToIndexBucketMap(TreeMap<Long, ArrayList<String>> map, long index, String value) {
|
|
ArrayList<String> bucket = map.get(index);
|
|
if (bucket == null) {
|
|
bucket = new ArrayList<String>();
|
|
}
|
|
bucket.add(value);
|
|
map.put(index, bucket);
|
|
}
|
|
|
|
/**
|
|
* Yes, an equality method that's null-safe.
|
|
*/
|
|
private static boolean same(Object a, Object b) {
|
|
if (a == b) {
|
|
return true;
|
|
}
|
|
if (a == null || b == null) {
|
|
return false; // If both null, case above applies.
|
|
}
|
|
return a.equals(b);
|
|
}
|
|
|
|
/**
|
|
* Return true if the two arrays are both null, or are both arrays
|
|
* containing the same elements in the same order.
|
|
*/
|
|
public static boolean sameArrays(JSONArray a, JSONArray b) {
|
|
if (a == b) {
|
|
return true;
|
|
}
|
|
if (a == null || b == null) {
|
|
return false;
|
|
}
|
|
final int size = a.size();
|
|
if (size != b.size()) {
|
|
return false;
|
|
}
|
|
for (int i = 0; i < size; ++i) {
|
|
if (!same(a.get(i), b.get(i))) {
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
}
|