package aceim.protocol.snuk182.icq.utils;
import java.io.UnsupportedEncodingException;
import java.util.Date;
import java.util.Random;
import java.util.concurrent.atomic.AtomicInteger;
public final class ProtocolUtils {
static AtomicInteger atomicInt = new AtomicInteger();
public static byte[] short2ByteLE(short in) {
byte[] out = new byte[2];
byte hexBase = (byte) 0xff;
out[0] = (byte) (hexBase & in);
out[1] = (byte) (((hexBase << 8) & in) >> 8);
return out;
}
public static byte[] int2ByteLE(int in) {
byte[] out = new byte[4];
byte hexBase = (byte) 0xff;
out[0] = (byte) (hexBase & in);
out[1] = (byte) (((hexBase << 8) & in) >> 8);
out[2] = (byte) (((hexBase << 16) & in) >> 16);
out[3] = (byte) (((hexBase << 24) & in) >> 24);
return out;
}
public static byte[] short2ByteBE(short in) {
byte[] out = new byte[2];
byte hexBase = (byte) 0xff;
out[1] = (byte) (hexBase & in);
out[0] = (byte) (((hexBase << 8) & in) >> 8);
return out;
}
public static byte[] int2ByteBE(int in) {
byte[] out = new byte[4];
byte hexBase = (byte) 0xff;
out[3] = (byte) (hexBase & in);
out[2] = (byte) (((hexBase << 8) & in) >> 8);
out[1] = (byte) (((hexBase << 16) & in) >> 16);
out[0] = (byte) (((hexBase << 24) & in) >> 24);
return out;
}
public static byte[] long2ByteBE(long in) {
byte[] out = new byte[8];
byte hexBase = (byte) 0xff;
out[7] = (byte) (hexBase & in);
out[6] = (byte) (((hexBase << 8) & in) >> 8);
out[5] = (byte) (((hexBase << 16) & in) >> 16);
out[4] = (byte) (((hexBase << 24) & in) >> 24);
out[3] = (byte) (((hexBase << 32) & in) >> 32);
out[2] = (byte) (((hexBase << 40) & in) >> 40);
out[1] = (byte) (((hexBase << 48) & in) >> 48);
out[0] = (byte) (((hexBase << 56) & in) >> 56);
return out;
}
public static byte[] long2ByteLE(long in) {
byte[] out = new byte[8];
byte hexBase = (byte) 0xff;
out[0] = (byte) (hexBase & in);
out[1] = (byte) (((hexBase << 8) & in) >> 8);
out[2] = (byte) (((hexBase << 16) & in) >> 16);
out[3] = (byte) (((hexBase << 24) & in) >> 24);
out[4] = (byte) (((hexBase << 32) & in) >> 32);
out[5] = (byte) (((hexBase << 40) & in) >> 40);
out[6] = (byte) (((hexBase << 48) & in) >> 48);
out[7] = (byte) (((hexBase << 56) & in) >> 56);
return out;
}
public static long unsignedInt2Long(int in) {
long out = 0xffffffffL;
out &= in;
return out;
}
public static short unsignedByte2Short(byte in) {
short out = 0xff;
out &= in;
return out;
}
public static int unsignedShort2Int(short in) {
int out = 0x0000ffff;
out &= in;
return out;
}
public static short bytes2ShortBE(byte[] in, int pos) {
if (in == null || in.length < 2 + pos)
return 0;
short out = 0;
out += (in[pos + 1]) & 0x00ff;
out += (in[pos] << 8) & 0xff00;
return out;
// return (short) ((in[pos]<<8)+in[pos+1]);
}
public static short bytes2ShortLE(byte[] in, int pos) {
if (in == null || in.length < 2 + pos)
return 0;
short out = 0;
out += (in[pos]) & 0x00ff;
out += (in[pos + 1] << 8) & 0xff00;
return out;
// return (short) ((in[pos+1]<<8)+in[pos]);
}
public static short bytes2ShortBE(byte[] in) {
return bytes2ShortBE(in, 0);
}
public static short bytes2ShortLE(byte[] in) {
return bytes2ShortLE(in, 0);
}
public static int bytes2IntBE(byte[] in) {
return bytes2IntBE(in, 0);
}
public static int bytes2IntLE(byte[] in) {
return bytes2IntLE(in, 0);
}
public static long bytes2LongBE(byte[] in) {
return bytes2LongBE(in, 0);
}
public static long bytes2LongLE(byte[] in) {
return bytes2LongLE(in, 0);
}
public static int bytes2IntBE(byte[] in, int pos) {
if (in == null || in.length < 4 + pos)
return 0;
int out = 0;
out += in[pos + 3] & 0x00ff;
out += (in[pos + 2] << 8) & 0xff00;
out += (in[pos + 1] << 16) & 0xff0000;
out += (in[pos] << 24) & 0xff000000;
return out;
// return (in[pos]<<24)+(in[pos+1]<<16)+(in[pos+2]<<8)+(in[pos+3]);
}
public static int bytes2IntLE(byte[] in, int pos) {
if (in == null || in.length < 4 + pos)
return 0;
int out = 0;
out += in[pos] & 0xff;
out += (in[pos + 1] << 8) & 0xff00;
out += (in[pos + 2] << 16) & 0xff0000;
out += (in[pos + 3] << 24) & 0xff000000;
return out;
// return (in[pos+3]<<24)+(in[pos+2]<<16)+(in[pos+1]<<8)+(in[pos]);
}
public static long bytes2LongBE(byte[] in, int pos) {
if (in == null || in.length < 8 + pos)
return 0;
long out = 0L;
/*
* out+=((in[pos+7])&0xff); out+=((in[pos+6]<<8)&0xff00);
* out+=((in[pos+5]<<16)&0xff0000); out+=((in[pos+4]<<24)&0xff000000);
* out+=((in[pos+3]<<32)&0xff00000000L);
* out+=((in[pos+2]<<40)&0xff0000000000L);
* out+=((in[pos+1]<<48)&0xff000000000000L);
* out+=((in[pos]<<56)&0xff00000000000000L);
*/
for (int i = 0; i < 8; i++) {
out <<= 8;
out += (in[pos + i] & 0x00000000000000ffL);
}
return out;
// return
// (in[pos]<<56)+(in[pos+1]<<48)+(in[pos+2]<<40)+(in[pos+3]<<32)+(in[pos+4]<<24)+(in[pos+5]<<16)+(in[pos+6]<<8)+(in[pos+7]);
}
public static long bytes2LongLE(byte[] in, int pos) {
if (in == null || in.length < 8 + pos)
return 0;
long out = 0;
/*
* out+=(in[pos])&0xff; out+=(in[pos+1]<<8)&0xff00;
* out+=(in[pos+2]<<16)&0xff0000; out+=(in[pos+3]<<24)&0xff000000;
* out+=(in[pos+4]<<32)&0xff00000000L;
* out+=(in[pos+5]<<40)&0xff0000000000L;
* out+=(in[pos+6]<<48)&0xff000000000000L;
* out+=(in[pos+7]<<56)&0xff00000000000000L;
*/
for (int i = 7; i >= 0; i--) {
out <<= 8;
out += (in[pos + i] & 0x00000000000000ffL);
}
return out;
// return
// (in[pos+7]<<56)+(in[pos+6]<<48)+(in[pos+5]<<40)+(in[pos+4]<<32)+(in[pos+3]<<24)+(in[pos+2]<<16)+(in[pos+1]<<8)+(in[pos]);
}
static final byte[] HEX_CHAR_TABLE = { (byte) '0', (byte) '1', (byte) '2', (byte) '3', (byte) '4', (byte) '5', (byte) '6', (byte) '7', (byte) '8', (byte) '9', (byte) 'a', (byte) 'b', (byte) 'c', (byte) 'd', (byte) 'e', (byte) 'f' };
public static String getSpacedHexString(byte[] raw) {
if (raw == null){
return null;
}
byte[] hex = new byte[3 * raw.length];
int index = 0;
for (byte b : raw) {
int v = b & 0xFF;
hex[index++] = HEX_CHAR_TABLE[v >>> 4];
hex[index++] = HEX_CHAR_TABLE[v & 0xF];
hex[index++] = (byte) ' ';
}
return new String(hex);
}
public static String getIPString(byte[] ipBytes){
return getIPString(ipBytes, 0);
}
public static String getIPString(byte[] ipBytes, int pos){
if (ipBytes == null || ipBytes.length <= (pos)){
return null;
}
StringBuilder sb = new StringBuilder();
for (int i=pos; i<ipBytes.length; i++){
sb.append(unsignedByte2Short(ipBytes[i]));
if (i < ipBytes.length-1){
sb.append('.');
}
}
return sb.toString();
}
public static String getHexString(byte[] raw) {
if (raw == null) {
return "";
}
byte[] hex = new byte[2 * raw.length];
int index = 0;
for (byte b : raw) {
int v = b & 0xFF;
hex[index++] = HEX_CHAR_TABLE[v >>> 4];
hex[index++] = HEX_CHAR_TABLE[v & 0xF];
}
return new String(hex);
}
public static int getAtomicInt() {
// return atomicInt.intValue();
return new Random().nextInt();
}
public static short getAtomicShort() {
return (short) new Random().nextInt(0x8000);
}
public static short[] byteArrayToShortArrayBE(byte[] in) {
if (in == null)
return null;
short[] out = new short[in.length / 2];
for (int i = 0; i < out.length; i++) {
out[i] = (short) ((in[2 * i + 1] << 8) + in[2 * i]);
}
return out;
}
public static short[] byteArrayToShortArrayLE(byte[] in) {
if (in == null)
return null;
short[] out = new short[in.length / 2];
for (int i = 0; i < out.length; i++) {
out[i] = (short) ((in[2 * i] << 8) + in[2 * i + 1]);
}
return out;
}
public static String getEncodedString(byte[] in, int offset, int len){
return getEncodedString(in, offset, len, "UTF-8");
}
public static String getEncodedString(byte[] in, int offset, int len, String encoding) {
if (in == null)
return "";
String out;
try {
out = new String(in, offset, len, encoding);
} catch (UnsupportedEncodingException e) {
out = new String(in, offset, len);
}
return out;
}
public static String getEncodedString(byte[] in){
return getEncodedString(in, "UTF-8");
}
public static String getEncodedString(byte[] in, String encoding) {
if (in == null)
return "";
String out;
try {
out = new String(in, encoding);
} catch (UnsupportedEncodingException e) {
out = new String(in);
}
return out;
}
public static Date bytes2Date(byte[] in) {
return new Date(ProtocolUtils.unsignedInt2Long(ProtocolUtils.bytes2IntBE(in)) * 1000);
}
public static String xmlToParameter(String xml) {
return xml.replaceAll("&", "&").replaceAll("<", "<").replaceAll(">", ">");
}
public static String xmlFromParameter(String par) {
return par.replaceAll("<", "<").replaceAll(">", ">").replaceAll("&", "&");
}
/*public static BuddyGroup getBuddyGroupByGroupId(short id, List<BuddyGroup> groups) {
for (BuddyGroup group : groups) {
if (group.id == id) {
return group;
}
}
return null;
}*/
public static final byte[] unxorByteArray(byte[] in){
if (in == null){
return null;
}
byte[] out = new byte[in.length];
for (int i=0; i<in.length; i++){
out[i] = (byte) (in[i]^0xff);
}
return out;
}
public static byte[] ipString2ByteBE(String rvIp) {
if (rvIp == null){
return new byte[0];
}
String[] bytes = rvIp.split("\\.");
byte[] ip = new byte[bytes.length];
for (int i=0; i<bytes.length; i++){
try {
ip[i] = (byte) Integer.parseInt(bytes[i]);
} catch (NumberFormatException e) {
ip[i] = 0;
}
}
return ip;
}
@SuppressWarnings("unchecked")
public static final <T> T[] concatObjectArrays(T[] a, T[] b) {
final int alen = a.length;
final int blen = b.length;
if (alen == 0) {
return b;
}
if (blen == 0) {
return a;
}
final T[] result = (T[]) java.lang.reflect.Array.newInstance(a.getClass().getComponentType(), alen + blen);
System.arraycopy(a, 0, result, 0, alen);
System.arraycopy(b, 0, result, alen, blen);
return result;
}
public static final byte[] concatByteArrays(byte[] a, byte[] b) {
final int alen = a.length;
final int blen = b.length;
if (alen == 0) {
return b;
}
if (blen == 0) {
return a;
}
final byte[] result = new byte[alen + blen];
System.arraycopy(a, 0, result, 0, alen);
System.arraycopy(b, 0, result, alen, blen);
return result;
}
}