org.bouncycastle.mail.smime.examples.CreateLargeCompressedMail Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of bcjmail-debug-jdk15to18 Show documentation

The Bouncy Castle Java S/MIME APIs for handling S/MIME protocols. This jar contains S/MIME APIs for JDK 1.5 to JDK 1.8. The APIs can be used in conjunction with a JCE/JCA provider such as the one provided with the Bouncy Castle Cryptography APIs. The Jakarta Mail API and the Jakarta activation framework will also be needed.

The newest version!

package org.bouncycastle.mail.smime.examples;

import java.io.File;
import java.io.FileOutputStream;
import java.util.Properties;

import jakarta.activation.DataHandler;
import jakarta.activation.FileDataSource;
import jakarta.mail.Address;
import jakarta.mail.Message;
import jakarta.mail.Session;
import jakarta.mail.internet.InternetAddress;
import jakarta.mail.internet.MimeBodyPart;
import jakarta.mail.internet.MimeMessage;

import org.bouncycastle.cms.jcajce.ZlibCompressor;
import org.bouncycastle.mail.smime.SMIMECompressedGenerator;

/**
 * a simple example that creates a single compressed mail message using the large
 * file model.
 */
public class CreateLargeCompressedMail
{
    public static void main(
        String args[])
        throws Exception
    {
        //
        // create the generator for creating an smime/compressed message
        //
        SMIMECompressedGenerator  gen = new SMIMECompressedGenerator();
          
        //
        // create the base for our message
        //
        MimeBodyPart msg = new MimeBodyPart();

        msg.setDataHandler(new DataHandler(new FileDataSource(new File(args[0]))));
        msg.setHeader("Content-Type", "application/octet-stream");
        msg.setHeader("Content-Transfer-Encoding", "binary");

        MimeBodyPart mp = gen.generate(msg, new ZlibCompressor());

        //
        // Get a Session object and create the mail message
        //
        Properties props = System.getProperties();
        Session session = Session.getDefaultInstance(props, null);

        Address fromUser = new InternetAddress("\"Eric H. Echidna\"");
        Address toUser = new InternetAddress("[email protected]");

        MimeMessage body = new MimeMessage(session);
        body.setFrom(fromUser);
        body.setRecipient(Message.RecipientType.TO, toUser);
        body.setSubject("example compressed message");
        body.setContent(mp.getContent(), mp.getContentType());
        body.saveChanges();

        body.writeTo(new FileOutputStream("compressed.message"));
    }
}