Decode Attachment in OutLook Express .dbx with MimeUtility?

Question

Hi boys,
I want to extract an attachment (encoded in base64 format) from outlook express .dbx file.
I construct 2 classes :
- the first extract from dbx file the attachment data and write it to disk.
- the second read from disk and decode with MimeUtility class (JavaMail).
The result is that the final file decoded is 600 byte less the original.
sigh!.
Can Anyone help me?
Thanks Emanuele
These are the classes :
package dbxreader;
import java.io.*;
* <p>Title: </p>
* <p>Description: </p>
* <p>Copyright: Copyright (c) 2004</p>
* <p>Company: </p>
* @author not attributable
* @version 1.0
public class Reading // THIS CLASS EXTRACT FROM DBX
private BufferedReader reader;
private FileOutputStream output;
private boolean complete = false;
public Reading()
public void parse(String archive,String fileName) throws IOException
reader= new BufferedReader(new FileReader(archive));
boolean found=false;
while(!found)
String line=reader.readLine();
if(line!=null)
int i=line.indexOf("filename=\""+fileName+"\"");
if(i!=-1)
found=true;
extractFile();
output.close();
reader.close();
private void extractFile() throws IOException
boolean finish=false;
boolean firstAttempt=true;
output= new FileOutputStream("solobyte.dat");
while (!finish)
char[] buffer=new char[2048];
byte[] dest;
int numberfBytes=reader.read(buffer);
if(firstAttempt)
dest=new byte[numberfBytes-2];
byte[] src=new String(buffer).getBytes("iso-8859-1");
System.arraycopy(src,2,dest,0,dest.length);
//String stringa=new String(dest);
firstAttempt=false;
else
byte[] src=new String(buffer).getBytes("iso-8859-1");
dest=new byte[numberfBytes];
System.arraycopy(src,0,dest,0,dest.length);
// controllo se il file e finito
// e scrivo l'array
String appoggio=new String(dest);
int index=appoggio.indexOf("------=_NextPart_");
if(index!=-1)
byte[] newdest=new byte[index-4];
System.arraycopy(dest,0,newdest,0,newdest.length);
System.out.print("Ci sono");
String prova=new String(dest);
finish=true;
String prova2=new String(newdest);
output.write(newdest);
output.flush();
else
output.write(dest);
output.flush();
System.out.print("ciao");
public static void main(String[] args)
try
Reading reading = new Reading();
reading.parse("Posta in arrivo.dbx", "PathAssolutoW.exe");
catch (IOException ex)
ex.printStackTrace();
THIS CLASS rRECONSTRUCT THE FILE
package dbxreader;
import java.io.*;
import javax.mail.internet.MimeUtility;
import javax.mail.*;
* <p>Title: </p>
* <p>Description: </p>
* <p>Copyright: Copyright (c) 2004</p>
* <p>Company: </p>
* @author not attributable
* @version 1.0
public class Decode {
public Decode() {
public static void main(String[] args)
try {
// FileInputStream file = new FileInputStream(new File("Prova.txt"));
//FileInputStream file = new FileInputStream(new File("Temp64.txt"));
FileInputStream file = new FileInputStream(new File("solobyte.dat"));
InputStream stream = MimeUtility.decode(file, "base64");
FileOutputStream output =new FileOutputStream("PathAssolutoW.exe");
//FileOutputStream output =new FileOutputStream("PathAssolutow.exe");
int iter=0;
while(stream.available()>0)
byte[] buffer=new byte[4096];
int nbytes=stream.read(buffer);
output.write(buffer,0,nbytes);
output.flush();
stream.close();
output.close();
// FileOutputStream output =new FileOutputStream("path.exe");
output.close();
catch (MessagingException ex)
ex.printStackTrace();
catch (FileNotFoundException ex)
ex.printStackTrace();
catch(IOException ex)
ex.printStackTrace();
}

Answer 1

The situation is this :
i have send to myself a mail with an attachment pathassolutow.exe.
The original file info are(from right click and properties)
- 85.854 byte dimension
- 86.016 byte on disk
When i launch my process (the two classes) the result is:
- 85.237 byte dimension
- 86.016 byte on disk
there is a difference :
85.854 before
85.237 after
If i try to launch the result file i get an error.
I open the result file(85.237 bytes) with visual studio tool depends.
I have get an error " NO PE SIGNATURE FOUND.This File is Not a valid win32 module.
This application write on c a text file.
Thanks for the reply Emanuele