/*
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package ZipFramework;
import java.awt.geom.Path2D;
import java.io.*;
import java.nio.ByteBuffer;
import java.nio.ByteBuffer;
import java.nio.MappedByteBuffer;
import java.nio.channels.FileChannel;
import java.util.Random;
import java.util.logging.Level;
import java.util.logging.Logger;
import java.util.zip.*;
/**
*
* @author Neill Harper
*/
public class FileData extends ZIPObject {
private File tempFile;
private FileEntry parent;
private CRC32 crc32;
private int[] crcNums = {
0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419,
0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4,
0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07,
0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de,
0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856,
0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9,
0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4,
0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,
0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3,
0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a,
0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599,
0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190,
0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f,
0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e,
0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,
0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed,
0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950,
0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3,
0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2,
0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a,
0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5,
0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010,
0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17,
0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6,
0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615,
0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8,
0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344,
0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb,
0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a,
0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1,
0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c,
0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef,
0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe,
0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31,
0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c,
0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b,
0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242,
0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1,
0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c,
0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278,
0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7,
0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66,
0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605,
0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8,
0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b,
0x2d02ef8d
};
public FileData(FileEntry Parent) throws IOException {
parent = Parent;
tempFile = File.createTempFile("zip", null);
this.fillTempFile();
}
@Override
protected byte[] GetOutput() {
FileInputStream output = null;
byte[] outBytes = new byte[(int) tempFile.length()];
try {
output = new FileInputStream(tempFile);
output.read(outBytes, 0, outBytes.length);
return outBytes;
} catch (FileNotFoundException ex) {
Logger.getLogger(FileData.class.getName()).log(Level.SEVERE, null, ex);
}
catch(IOException ioE)
{
Logger.getLogger(FileData.class.getName()).log(Level.SEVERE, null, ioE);
}
finally {
try {
output.close();
} catch (IOException ex) {
Logger.getLogger(FileData.class.getName()).log(Level.SEVERE, null, ex);
}
}
return outBytes;
}
private void fillTempFile() throws FileNotFoundException, IOException {
switch (parent.getLfh().getMethod().getMethodValue()) {
case Method.Stored:
storedCompression();
break;
case Method.Deflated:
deflateCompression();
break;
default:
throw new UnsupportedOperationException("Not supported yet.");
}
if (this.parent.getPassword() != null) {
EncryptFileData();
}
this.parent.getLfh().setCompressedSize((int) tempFile.length());
}
private void EncryptFileData() throws UnsupportedEncodingException, IOException
{
String password = this.parent.getPassword();
int[] keys = new int[3];
Random ran = new Random();
keys[0] = 305419896;
keys[1] = 591751049;
keys[2] = 878082192;
byte[] passwordBytes = password.getBytes("US-ASCII");
for (byte b : passwordBytes)
{
updateKeys(keys, b);
}
byte[] sbytes = new byte[12];
byte[] encBuf = new byte[12];
//encBuf = ConvertsByteArrayToByteArray(sbytes, sbytes.Length);
ran.nextBytes(encBuf);
encBuf[11] = (byte)(this.parent.getLfh().getLastModDataTime().getDosTime() >>8);
for (int i = 0; i < encBuf.length;i++ )
{
encBuf[i] = EncodeByte(keys,encBuf[i]);
}
File newTemp = File.createTempFile("zip", null);
FileOutputStream newTempStream = new FileOutputStream(newTemp);
BufferedOutputStream bos = new BufferedOutputStream(newTempStream, 2048);
//Write the encryption header to the new temp file
newTempStream.write(encBuf, 0, encBuf.length);
FileInputStream input = null;
FileChannel fc;
try
{
input = new FileInputStream(tempFile);
fc = input.getChannel();
MappedByteBuffer bb = fc.map(FileChannel.MapMode.READ_ONLY,0,fc.size());
int i;
byte b;
long bytecount = 0;
while (bb.hasRemaining())
{
bos.write(EncodeByte(keys, bb.get()));
bytecount ++;
}
}
finally
{
input.close();
bos.close();
}
tempFile.delete();
tempFile = newTemp;
}
private byte EncodeByte(int[] keys, byte b)
{
byte t = DecryptByte(keys);
updateKeys(keys, b);
return (byte)(t ^ b);
}
private byte DecryptByte(int[] keys)
{
short temp = (short)(keys[2] | 2);
return (byte)((temp * (temp ^ 1)) >> 8);
}
private int crc32Method(int CRC, byte b)
{
int i = b & 0xFF;
long l = (long)CRC & 0xFFFFFFFFL;
long crcnum, crcin;
int tempcrc = crcNums[(i ^ (int)(l)) & 0xff];
long holdRes = tempcrc ^ (l >> 8);
int ret = (int)(holdRes & 0xFFFFFFFFL);
return ret;
}
private void updateKeys(int[] keys, byte b)
{
keys[0] = crc32Method(keys[0], b);
keys[1] += keys[0] & 0xFF;
keys[1] = ((keys[1] * 134775813 + 1));
keys[2] = crc32Method(keys[2], (byte)(keys[1] >> 24));
}
private void storedCompression() throws FileNotFoundException, IOException
{
FileInputStream input = null;
FileOutputStream output = null;
try
{
crc32 = new CRC32();
input = new FileInputStream(this.parent.getFilePath());
output = new FileOutputStream(tempFile);
byte[] inBytes = new byte[1024];
int offset = 0;
int numberRead = 0;
while ((numberRead = input.read(inBytes, 0, 1024)) != -1)
{
crc32.update(inBytes, 0,numberRead);
output.write(inBytes, 0, numberRead);
offset += numberRead;
}
long c32 = crc32.getValue();
this.parent.getLfh().setCRC32((int)crc32.getValue());
}
finally
{
input.close();
output.close();
}
}
private void deflateCompression() throws FileNotFoundException, IOException
{
FileInputStream input = null;
FileOutputStream output = null;
DeflaterOutputStream dos = null;
try
{
crc32 = new CRC32();
input = new FileInputStream(this.parent.getFilePath());
output = new FileOutputStream(tempFile);
Deflater d = new Deflater(Deflater.BEST_COMPRESSION,true);
dos = new DeflaterOutputStream(output,d);
byte[] inBytes = new byte[1024];
int offset = 0;
int numberRead = 0;
while ((numberRead = input.read(inBytes, 0, 1024)) != -1)
{
crc32.update(inBytes, 0,numberRead);
dos.write(inBytes, 0, numberRead);
offset += numberRead;
}
long c32 = crc32.getValue();
this.parent.getLfh().setCRC32((int)crc32.getValue());
}
finally
{
input.close();
dos.close();
}
}
}
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