Nagram/TMessagesProj/src/main/java/org/telegram/messenger/Utilities.java

919 lines
33 KiB
Java

/*
* This is the source code of Telegram for Android v. 1.3.2.
* It is licensed under GNU GPL v. 2 or later.
* You should have received a copy of the license in this archive (see LICENSE).
*
* Copyright Nikolai Kudashov, 2013.
*/
package org.telegram.messenger;
import android.app.Activity;
import android.app.ProgressDialog;
import android.content.ContentUris;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.Point;
import android.graphics.Typeface;
import android.net.Uri;
import android.os.Build;
import android.os.Environment;
import android.provider.DocumentsContract;
import android.provider.MediaStore;
import android.text.Html;
import android.text.SpannableStringBuilder;
import android.util.Base64;
import android.view.Display;
import android.view.View;
import android.view.WindowManager;
import android.view.inputmethod.InputMethodManager;
import net.hockeyapp.android.CrashManager;
import net.hockeyapp.android.UpdateManager;
import org.telegram.ui.ApplicationLoader;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.math.BigInteger;
import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import java.nio.channels.Channels;
import java.nio.channels.FileChannel;
import java.nio.channels.ReadableByteChannel;
import java.security.KeyFactory;
import java.security.MessageDigest;
import java.security.PublicKey;
import java.security.SecureRandom;
import java.security.spec.RSAPublicKeySpec;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.Hashtable;
import java.util.Locale;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import java.util.zip.GZIPInputStream;
import java.util.zip.GZIPOutputStream;
import javax.crypto.Cipher;
public class Utilities {
public static int statusBarHeight = 0;
public static float density = 1;
public static Point displaySize = new Point();
public static Pattern pattern = Pattern.compile("[0-9]+");
public static SecureRandom random = new SecureRandom();
private final static Integer lock = 1;
private static boolean waitingForSms = false;
private static final Integer smsLock = 2;
public static ArrayList<String> goodPrimes = new ArrayList<String>();
public static class TPFactorizedValue {
public long p, q;
}
public static volatile DispatchQueue stageQueue = new DispatchQueue("stageQueue");
public static volatile DispatchQueue globalQueue = new DispatchQueue("globalQueue");
public static int[] arrColors = {0xffee4928, 0xff41a903, 0xffe09602, 0xff0f94ed, 0xff8f3bf7, 0xfffc4380, 0xff00a1c4, 0xffeb7002};
public static int[] arrUsersAvatars = {
R.drawable.user_red,
R.drawable.user_green,
R.drawable.user_yellow,
R.drawable.user_blue,
R.drawable.user_violet,
R.drawable.user_pink,
R.drawable.user_aqua,
R.drawable.user_orange};
public static int[] arrGroupsAvatars = {
R.drawable.group_green,
R.drawable.group_red,
R.drawable.group_blue,
R.drawable.group_yellow};
public static int externalCacheNotAvailableState = 0;
final protected static char[] hexArray = "0123456789ABCDEF".toCharArray();
private static final Hashtable<String, Typeface> cache = new Hashtable<String, Typeface>();
public static ProgressDialog progressDialog;
static {
try {
File URANDOM_FILE = new File("/dev/urandom");
FileInputStream sUrandomIn = new FileInputStream(URANDOM_FILE);
byte[] buffer = new byte[1024];
sUrandomIn.read(buffer);
sUrandomIn.close();
random.setSeed(buffer);
} catch (Exception e) {
FileLog.e("tmessages", e);
}
density = ApplicationLoader.applicationContext.getResources().getDisplayMetrics().density;
SharedPreferences preferences = ApplicationLoader.applicationContext.getSharedPreferences("primes", Context.MODE_PRIVATE);
String primes = preferences.getString("primes", null);
if (primes == null) {
goodPrimes.add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
} else {
try {
byte[] bytes = Base64.decode(primes, Base64.DEFAULT);
if (bytes != null) {
SerializedData data = new SerializedData(bytes);
int count = data.readInt32();
for (int a = 0; a < count; a++) {
goodPrimes.add(data.readString());
}
}
} catch (Exception e) {
FileLog.e("tmessages", e);
goodPrimes.clear();
goodPrimes.add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
}
}
checkDisplaySize();
}
public native static long doPQNative(long _what);
public native static byte[] aesIgeEncryption(byte[] _what, byte[] _key, byte[] _iv, boolean encrypt, boolean changeIv, int len);
public native static void aesIgeEncryption2(ByteBuffer _what, byte[] _key, byte[] _iv, boolean encrypt, boolean changeIv, int len);
public native static void loadBitmap(String path, Bitmap bitmap, int scale);
public static boolean isWaitingForSms() {
boolean value = false;
synchronized (smsLock) {
value = waitingForSms;
}
return value;
}
public static void setWaitingForSms(boolean value) {
synchronized (smsLock) {
waitingForSms = value;
}
}
public static Integer parseInt(String value) {
Integer val = 0;
Matcher matcher = pattern.matcher(value);
if (matcher.find()) {
String num = matcher.group(0);
val = Integer.parseInt(num);
}
return val;
}
public static String parseIntToString(String value) {
Matcher matcher = pattern.matcher(value);
if (matcher.find()) {
return matcher.group(0);
}
return null;
}
public static File getCacheDir() {
if (externalCacheNotAvailableState == 1 || externalCacheNotAvailableState == 0 && Environment.getExternalStorageState().startsWith(Environment.MEDIA_MOUNTED)) {
externalCacheNotAvailableState = 1;
return ApplicationLoader.applicationContext.getExternalCacheDir();
}
externalCacheNotAvailableState = 2;
return ApplicationLoader.applicationContext.getCacheDir();
}
public static String bytesToHex(byte[] bytes) {
char[] hexChars = new char[bytes.length * 2];
int v;
for ( int j = 0; j < bytes.length; j++ ) {
v = bytes[j] & 0xFF;
hexChars[j * 2] = hexArray[v >>> 4];
hexChars[j * 2 + 1] = hexArray[v & 0x0F];
}
return new String(hexChars);
}
public static int dp(int value) {
return (int)(density * value);
}
public static int dpf(float value) {
return (int)Math.ceil(density * value);
}
public static boolean isGoodPrime(byte[] prime, int g) {
if (!(g >= 2 && g <= 7)) {
return false;
}
if (prime.length != 256 || prime[0] >= 0) {
return false;
}
BigInteger dhBI = new BigInteger(1, prime);
if (g == 2) { // p mod 8 = 7 for g = 2;
BigInteger res = dhBI.mod(BigInteger.valueOf(8));
if (res.intValue() != 7) {
return false;
}
} else if (g == 3) { // p mod 3 = 2 for g = 3;
BigInteger res = dhBI.mod(BigInteger.valueOf(3));
if (res.intValue() != 2) {
return false;
}
} else if (g == 5) { // p mod 5 = 1 or 4 for g = 5;
BigInteger res = dhBI.mod(BigInteger.valueOf(5));
int val = res.intValue();
if (val != 1 && val != 4) {
return false;
}
} else if (g == 6) { // p mod 24 = 19 or 23 for g = 6;
BigInteger res = dhBI.mod(BigInteger.valueOf(24));
int val = res.intValue();
if (val != 19 && val != 23) {
return false;
}
} else if (g == 7) { // p mod 7 = 3, 5 or 6 for g = 7.
BigInteger res = dhBI.mod(BigInteger.valueOf(7));
int val = res.intValue();
if (val != 3 && val != 5 && val != 6) {
return false;
}
}
String hex = bytesToHex(prime);
for (String cached : goodPrimes) {
if (cached.equals(hex)) {
return true;
}
}
BigInteger dhBI2 = dhBI.subtract(BigInteger.valueOf(1)).divide(BigInteger.valueOf(2));
if (!dhBI.isProbablePrime(30) || !dhBI2.isProbablePrime(30)) {
return false;
}
goodPrimes.add(hex);
globalQueue.postRunnable(new Runnable() {
@Override
public void run() {
try {
SerializedData data = new SerializedData();
data.writeInt32(goodPrimes.size());
for (String pr : goodPrimes) {
data.writeString(pr);
}
byte[] bytes = data.toByteArray();
SharedPreferences preferences = ApplicationLoader.applicationContext.getSharedPreferences("primes", Context.MODE_PRIVATE);
SharedPreferences.Editor editor = preferences.edit();
editor.putString("primes", Base64.encodeToString(bytes, Base64.DEFAULT));
editor.commit();
} catch (Exception e) {
FileLog.e("tmessages", e);
}
}
});
return true;
}
public static boolean isGoodGaAndGb(BigInteger g_a, BigInteger p) {
return !(g_a.compareTo(BigInteger.valueOf(1)) != 1 || g_a.compareTo(p.subtract(BigInteger.valueOf(1))) != -1);
}
public static TPFactorizedValue getFactorizedValue(long what) {
long g = doPQNative(what);
if (g > 1 && g < what) {
long p1 = g;
long p2 = what / g;
if (p1 > p2) {
long tmp = p1;
p1 = p2;
p2 = tmp;
}
TPFactorizedValue result = new TPFactorizedValue();
result.p = p1;
result.q = p2;
return result;
} else {
FileLog.e("tmessages", String.format("**** Factorization failed for %d", what));
TPFactorizedValue result = new TPFactorizedValue();
result.p = 0;
result.q = 0;
return result;
}
}
public static byte[] computeSHA1(byte[] convertme, int offset, int len) {
try {
MessageDigest md = MessageDigest.getInstance("SHA-1");
md.update(convertme, offset, len);
return md.digest();
} catch (Exception e) {
FileLog.e("tmessages", e);
}
return null;
}
public static byte[] computeSHA1(ByteBuffer convertme, int offset, int len) {
try {
MessageDigest md = MessageDigest.getInstance("SHA-1");
int oldp = convertme.position();
int oldl = convertme.limit();
convertme.position(offset);
convertme.limit(len);
md.update(convertme);
convertme.position(oldp);
convertme.limit(oldl);
return md.digest();
} catch (Exception e) {
FileLog.e("tmessages", e);
}
return null;
}
public static byte[] computeSHA1(byte[] convertme) {
try {
MessageDigest md = MessageDigest.getInstance("SHA-1");
return md.digest(convertme);
} catch (Exception e) {
FileLog.e("tmessages", e);
}
return null;
}
public static byte[] encryptWithRSA(BigInteger[] key, byte[] data) {
try {
KeyFactory fact = KeyFactory.getInstance("RSA");
RSAPublicKeySpec keySpec = new RSAPublicKeySpec(key[0], key[1]);
PublicKey publicKey = fact.generatePublic(keySpec);
final Cipher cipher = Cipher.getInstance("RSA");
cipher.init(Cipher.ENCRYPT_MODE, publicKey);
return cipher.doFinal(data);
} catch (Exception e) {
FileLog.e("tmessages", e);
}
return null;
}
public static byte[] longToBytes(long x) {
ByteBuffer buffer = ByteBuffer.allocate(8);
buffer.putLong(x);
return buffer.array();
}
public static long bytesToLong(byte[] bytes) {
ByteBuffer buffer = ByteBuffer.allocate(8);
buffer.order(ByteOrder.LITTLE_ENDIAN);
buffer.put(bytes);
buffer.flip();
return buffer.getLong();
}
public static int bytesToInt(byte[] bytes) {
ByteBuffer buffer = ByteBuffer.allocate(4);
buffer.order(ByteOrder.LITTLE_ENDIAN);
buffer.put(bytes);
buffer.flip();
return buffer.getInt();
}
public static MessageKeyData generateMessageKeyData(byte[] authKey, byte[] messageKey, boolean incoming) {
MessageKeyData keyData = new MessageKeyData();
if (authKey == null || authKey.length == 0) {
keyData.aesIv = null;
keyData.aesKey = null;
return keyData;
}
int x = incoming ? 8 : 0;
SerializedData data = new SerializedData();
data.writeRaw(messageKey);
data.writeRaw(authKey, x, 32);
byte[] sha1_a = Utilities.computeSHA1(data.toByteArray());
data = new SerializedData();
data.writeRaw(authKey, 32 + x, 16);
data.writeRaw(messageKey);
data.writeRaw(authKey, 48 + x, 16);
byte[] sha1_b = Utilities.computeSHA1(data.toByteArray());
data = new SerializedData();
data.writeRaw(authKey, 64 + x, 32);
data.writeRaw(messageKey);
byte[] sha1_c = Utilities.computeSHA1(data.toByteArray());
data = new SerializedData();
data.writeRaw(messageKey);
data.writeRaw(authKey, 96 + x, 32);
byte[] sha1_d = Utilities.computeSHA1(data.toByteArray());
SerializedData aesKey = new SerializedData();
aesKey.writeRaw(sha1_a, 0, 8);
aesKey.writeRaw(sha1_b, 8, 12);
aesKey.writeRaw(sha1_c, 4, 12);
keyData.aesKey = aesKey.toByteArray();
SerializedData aesIv = new SerializedData();
aesIv.writeRaw(sha1_a, 8, 12);
aesIv.writeRaw(sha1_b, 0, 8);
aesIv.writeRaw(sha1_c, 16, 4);
aesIv.writeRaw(sha1_d, 0, 8);
keyData.aesIv = aesIv.toByteArray();
return keyData;
}
public static TLObject decompress(byte[] data, TLObject parentObject) {
final int BUFFER_SIZE = 512;
ByteArrayInputStream is = new ByteArrayInputStream(data);
GZIPInputStream gis;
try {
gis = new GZIPInputStream(is, BUFFER_SIZE);
ByteArrayOutputStream bytesOutput = new ByteArrayOutputStream();
data = new byte[BUFFER_SIZE];
int bytesRead;
while ((bytesRead = gis.read(data)) != -1) {
bytesOutput.write(data, 0, bytesRead);
}
gis.close();
is.close();
SerializedData stream = new SerializedData(bytesOutput.toByteArray());
return TLClassStore.Instance().TLdeserialize(stream, stream.readInt32(), parentObject);
} catch (IOException e) {
FileLog.e("tmessages", e);
}
return null;
}
public static byte[] compress(byte[] data) {
if (data == null) {
return null;
}
byte[] packedData = null;
ByteArrayOutputStream bytesStream = new ByteArrayOutputStream();
try {
GZIPOutputStream zip = new GZIPOutputStream(bytesStream);
zip.write(data);
zip.close();
packedData = bytesStream.toByteArray();
} catch (IOException e) {
FileLog.e("tmessages", e);
}
return packedData;
}
public static Typeface getTypeface(String assetPath) {
synchronized (cache) {
if (!cache.containsKey(assetPath)) {
try {
Typeface t = Typeface.createFromAsset(ApplicationLoader.applicationContext.getAssets(),
assetPath);
cache.put(assetPath, t);
} catch (Exception e) {
FileLog.e("Typefaces", "Could not get typeface '" + assetPath + "' because " + e.getMessage());
return null;
}
}
return cache.get(assetPath);
}
}
public static void showKeyboard(View view) {
if (view == null) {
return;
}
InputMethodManager inputManager = (InputMethodManager)view.getContext().getSystemService(Context.INPUT_METHOD_SERVICE);
inputManager.showSoftInput(view, InputMethodManager.SHOW_IMPLICIT);
((InputMethodManager) view.getContext().getSystemService(Context.INPUT_METHOD_SERVICE)).showSoftInput(view, 0);
}
public static boolean isKeyboardShowed(View view) {
if (view == null) {
return false;
}
InputMethodManager inputManager = (InputMethodManager) view.getContext().getSystemService(Context.INPUT_METHOD_SERVICE);
return inputManager.isActive(view);
}
public static void hideKeyboard(View view) {
if (view == null) {
return;
}
InputMethodManager imm = (InputMethodManager) view.getContext().getSystemService(Context.INPUT_METHOD_SERVICE);
if (!imm.isActive()) {
return;
}
imm.hideSoftInputFromWindow(view.getWindowToken(), 0);
}
public static void ShowProgressDialog(final Activity activity, final String message) {
activity.runOnUiThread(new Runnable() {
@Override
public void run() {
if(!activity.isFinishing()) {
progressDialog = new ProgressDialog(activity);
if (message != null) {
progressDialog.setMessage(message);
}
progressDialog.setCanceledOnTouchOutside(false);
progressDialog.setCancelable(false);
progressDialog.show();
}
}
});
}
public static void checkDisplaySize() {
try {
WindowManager manager = (WindowManager)ApplicationLoader.applicationContext.getSystemService(Context.WINDOW_SERVICE);
if (manager != null) {
Display display = manager.getDefaultDisplay();
if (display != null) {
if(android.os.Build.VERSION.SDK_INT < 13) {
displaySize.set(display.getWidth(), display.getHeight());
} else {
display.getSize(displaySize);
}
FileLog.e("tmessages", "display size = " + displaySize.x + " " + displaySize.y);
}
}
} catch (Exception e) {
FileLog.e("tmessages", e);
}
}
public static void HideProgressDialog(Activity activity) {
activity.runOnUiThread(new Runnable() {
@Override
public void run() {
if (progressDialog != null) {
progressDialog.dismiss();
}
}
});
}
public static boolean copyFile(InputStream sourceFile, File destFile) throws IOException {
OutputStream out = new FileOutputStream(destFile);
byte[] buf = new byte[4096];
int len;
while ((len = sourceFile.read(buf)) > 0) {
Thread.yield();
out.write(buf, 0, len);
}
out.close();
return true;
}
public static boolean copyFile(File sourceFile, File destFile) throws IOException {
if(!destFile.exists()) {
destFile.createNewFile();
}
FileChannel source = null;
FileChannel destination = null;
try {
source = new FileInputStream(sourceFile).getChannel();
destination = new FileOutputStream(destFile).getChannel();
destination.transferFrom(source, 0, source.size());
} catch (Exception e) {
FileLog.e("tmessages", e);
return false;
} finally {
if(source != null) {
source.close();
}
if(destination != null) {
destination.close();
}
}
return true;
}
public static void RunOnUIThread(Runnable runnable) {
synchronized (lock) {
ApplicationLoader.applicationHandler.post(runnable);
}
}
public static int getColorIndex(int id) {
int[] arr;
if (id >= 0) {
arr = arrUsersAvatars;
} else {
arr = arrGroupsAvatars;
}
try {
String str;
if (id >= 0) {
str = String.format(Locale.US, "%d%d", id, UserConfig.clientUserId);
} else {
str = String.format(Locale.US, "%d", id);
}
if (str.length() > 15) {
str = str.substring(0, 15);
}
java.security.MessageDigest md = java.security.MessageDigest.getInstance("MD5");
byte[] digest = md.digest(str.getBytes());
int b = digest[Math.abs(id % 16)];
if (b < 0) {
b += 256;
}
return Math.abs(b) % arr.length;
} catch (Exception e) {
FileLog.e("tmessages", e);
}
return id % arr.length;
}
public static int getColorForId(int id) {
if (id / 1000 == 333) {
return 0xff0f94ed;
}
return arrColors[getColorIndex(id)];
}
public static int getUserAvatarForId(int id) {
if (id / 1000 == 333) {
return R.drawable.telegram_avatar;
}
return arrUsersAvatars[getColorIndex(id)];
}
public static int getGroupAvatarForId(int id) {
return arrGroupsAvatars[getColorIndex(-id)];
}
public static String MD5(String md5) {
try {
java.security.MessageDigest md = java.security.MessageDigest.getInstance("MD5");
byte[] array = md.digest(md5.getBytes());
StringBuilder sb = new StringBuilder();
for (byte anArray : array) {
sb.append(Integer.toHexString((anArray & 0xFF) | 0x100).substring(1, 3));
}
return sb.toString();
} catch (java.security.NoSuchAlgorithmException e) {
FileLog.e("tmessages", e);
}
return null;
}
public static void addMediaToGallery(String fromPath) {
if (fromPath == null) {
return;
}
File f = new File(fromPath);
Uri contentUri = Uri.fromFile(f);
addMediaToGallery(contentUri);
}
public static void addMediaToGallery(Uri uri) {
if (uri == null) {
return;
}
Intent mediaScanIntent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE);
mediaScanIntent.setData(uri);
ApplicationLoader.applicationContext.sendBroadcast(mediaScanIntent);
}
private static File getAlbumDir() {
File storageDir = null;
if (Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState())) {
storageDir = new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES), LocaleController.getString("AppName", R.string.AppName));
if (storageDir != null) {
if (! storageDir.mkdirs()) {
if (! storageDir.exists()){
FileLog.d("tmessages", "failed to create directory");
return null;
}
}
}
} else {
FileLog.d("tmessages", "External storage is not mounted READ/WRITE.");
}
return storageDir;
}
public static String getPath(final Uri uri) {
try {
final boolean isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT;
if (isKitKat && DocumentsContract.isDocumentUri(ApplicationLoader.applicationContext, uri)) {
if (isExternalStorageDocument(uri)) {
final String docId = DocumentsContract.getDocumentId(uri);
final String[] split = docId.split(":");
final String type = split[0];
if ("primary".equalsIgnoreCase(type)) {
return Environment.getExternalStorageDirectory() + "/" + split[1];
}
} else if (isDownloadsDocument(uri)) {
final String id = DocumentsContract.getDocumentId(uri);
final Uri contentUri = ContentUris.withAppendedId(Uri.parse("content://downloads/public_downloads"), Long.valueOf(id));
return getDataColumn(ApplicationLoader.applicationContext, contentUri, null, null);
} else if (isMediaDocument(uri)) {
final String docId = DocumentsContract.getDocumentId(uri);
final String[] split = docId.split(":");
final String type = split[0];
Uri contentUri = null;
if ("image".equals(type)) {
contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
} else if ("video".equals(type)) {
contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
} else if ("audio".equals(type)) {
contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
}
final String selection = "_id=?";
final String[] selectionArgs = new String[] {
split[1]
};
return getDataColumn(ApplicationLoader.applicationContext, contentUri, selection, selectionArgs);
}
} else if ("content".equalsIgnoreCase(uri.getScheme())) {
return getDataColumn(ApplicationLoader.applicationContext, uri, null, null);
} else if ("file".equalsIgnoreCase(uri.getScheme())) {
return uri.getPath();
}
} catch (Exception e) {
FileLog.e("tmessages", e);
}
return null;
}
public static String getDataColumn(Context context, Uri uri, String selection, String[] selectionArgs) {
Cursor cursor = null;
final String column = "_data";
final String[] projection = {
column
};
try {
cursor = context.getContentResolver().query(uri, projection, selection, selectionArgs, null);
if (cursor != null && cursor.moveToFirst()) {
final int column_index = cursor.getColumnIndexOrThrow(column);
return cursor.getString(column_index);
}
} catch (Exception e) {
FileLog.e("tmessages", e);
} finally {
if (cursor != null) {
cursor.close();
}
}
return null;
}
public static boolean isExternalStorageDocument(Uri uri) {
return "com.android.externalstorage.documents".equals(uri.getAuthority());
}
public static boolean isDownloadsDocument(Uri uri) {
return "com.android.providers.downloads.documents".equals(uri.getAuthority());
}
public static boolean isMediaDocument(Uri uri) {
return "com.android.providers.media.documents".equals(uri.getAuthority());
}
public static File generatePicturePath() {
try {
File storageDir = getAlbumDir();
String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
String imageFileName = "IMG_" + timeStamp + "_";
return File.createTempFile(imageFileName, ".jpg", storageDir);
} catch (Exception e) {
FileLog.e("tmessages", e);
}
return null;
}
public static CharSequence generateSearchName(String name, String name2, String q) {
if (name == null && name2 == null) {
return "";
}
int index;
SpannableStringBuilder builder = new SpannableStringBuilder();
String wholeString = name;
if (wholeString == null || wholeString.length() == 0) {
wholeString = name2;
} else if (name2 != null && name2.length() != 0) {
wholeString += " " + name2;
}
wholeString = wholeString.trim();
String[] args = wholeString.split(" ");
for (String arg : args) {
String str = arg;
if (str != null) {
String lower = str.toLowerCase();
if (lower.startsWith(q)) {
if (builder.length() != 0) {
builder.append(" ");
}
String query = str.substring(0, q.length());
builder.append(Html.fromHtml("<font color=\"#357aa8\">" + query + "</font>"));
str = str.substring(q.length());
builder.append(str);
} else {
if (builder.length() != 0) {
builder.append(" ");
}
builder.append(str);
}
}
}
return builder;
}
public static File generateVideoPath() {
try {
File storageDir = getAlbumDir();
String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
String imageFileName = "VID_" + timeStamp + "_";
return File.createTempFile(imageFileName, ".mp4", storageDir);
} catch (Exception e) {
FileLog.e("tmessages", e);
}
return null;
}
public static String formatName(String firstName, String lastName) {
String result = firstName;
if (result == null || result.length() == 0) {
result = lastName;
} else if (result.length() != 0 && lastName.length() != 0) {
result += " " + lastName;
}
return result.trim();
}
public static String formatFileSize(long size) {
if (size < 1024) {
return String.format("%d B", size);
} else if (size < 1024 * 1024) {
return String.format("%.1f KB", size / 1024.0f);
} else if (size < 1024 * 1024 * 1024) {
return String.format("%.1f MB", size / 1024.0f / 1024.0f);
} else {
return String.format("%.1f GB", size / 1024.0f / 1024.0f / 1024.0f);
}
}
public static byte[] decodeQuotedPrintable(final byte[] bytes) {
if (bytes == null) {
return null;
}
final ByteArrayOutputStream buffer = new ByteArrayOutputStream();
for (int i = 0; i < bytes.length; i++) {
final int b = bytes[i];
if (b == '=') {
try {
final int u = Character.digit((char) bytes[++i], 16);
final int l = Character.digit((char) bytes[++i], 16);
buffer.write((char) ((u << 4) + l));
} catch (Exception e) {
FileLog.e("tmessages", e);
return null;
}
} else {
buffer.write(b);
}
}
return buffer.toByteArray();
}
public static void checkForCrashes(Activity context) {
CrashManager.register(context, BuildVars.HOCKEY_APP_HASH);
}
public static void checkForUpdates(Activity context) {
if (BuildVars.DEBUG_VERSION) {
UpdateManager.register(context, BuildVars.HOCKEY_APP_HASH);
}
}
}