Example usage for java.security DigestInputStream DigestInputStream

Introduction

In this page you can find the example usage for java.security DigestInputStream DigestInputStream.

Prototype

public DigestInputStream(InputStream stream, MessageDigest digest) 

Source Link

Document

Creates a digest input stream, using the specified input stream and message digest.

Usage

From source file:edu.usu.sdl.openstorefront.service.io.HelpImporter.java

@Override
public void initialize() {
    try {/* w w  w  .j av a 2s  .  c  o m*/

        ServiceProxy serviceProxy = new ServiceProxy();

        //Check for file changes
        MessageDigest md = MessageDigest.getInstance("MD5");
        ByteArrayOutputStream bout = new ByteArrayOutputStream();
        try (InputStream is = HelpImporter.class.getResourceAsStream("/userhelp.md");
                DigestInputStream dis = new DigestInputStream(is, md);) {
            FileSystemManager.copy(dis, bout);
        }
        byte[] digest = md.digest();
        String checkSum = serviceProxy.getSystemService().getPropertyValue(ApplicationProperty.HELP_SYNC);

        boolean process = true;
        String newCheckSum = new String(digest);
        if (StringUtils.isNotBlank(checkSum)) {
            if (checkSum.equals(newCheckSum)) {
                process = false;
            }
        }

        if (process) {
            log.log(Level.INFO, "Loading Help");
            List<HelpSection> helpSections = processHelp(new ByteArrayInputStream(bout.toByteArray()));
            serviceProxy.getSystemService().loadNewHelpSections(helpSections);

            serviceProxy.getSystemService().saveProperty(ApplicationProperty.HELP_SYNC, newCheckSum);
            log.log(Level.INFO, "Done Loading Help");
        }

    } catch (NoSuchAlgorithmException | IOException ex) {
        throw new OpenStorefrontRuntimeException("Unable to load help.",
                "Check system and resource userhelp.md", ex);
    }
}

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From source file:jobhunter.persistence.Persistence.java

private Optional<Profile> _readProfile(final File file) {

    try (ZipFile zfile = new ZipFile(file)) {
        l.debug("Reading profile from JHF File");
        final InputStream in = zfile.getInputStream(new ZipEntry("profile.xml"));

        MessageDigest md = MessageDigest.getInstance("MD5");
        DigestInputStream dis = new DigestInputStream(in, md);

        final Object obj = xstream.fromXML(dis);

        updateLastMod(file, md);/*from   w w  w .  java  2  s.  co m*/

        return Optional.of((Profile) obj);
    } catch (Exception e) {
        l.error("Failed to read file: {}", e.getMessage());
    }

    return Optional.empty();
}

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From source file:com.stimulus.archiva.domain.EmailID.java

public static synchronized String generateUniqueID(Email email) {
    try {//from   ww w.  j  av  a2 s  .c o  m
        MimeMessage raw = email;
        // we need a backup plan here
        if (raw == null) {
            return DateUtil.convertDatetoString(new Date());
        }
        Enumeration<Header> headers = raw.getAllHeaders();
        LinkedList<String> orderedHeaders = new LinkedList<String>();
        while (headers.hasMoreElements()) {
            Header header = headers.nextElement();

            if (Compare.equalsIgnoreCase(header.getName(), "Date")
                    || Compare.equalsIgnoreCase(header.getName(), "CC")
                    || Compare.equalsIgnoreCase(header.getName(), "BCC")
                    || Compare.equalsIgnoreCase(header.getName(), "Subject")
                    || Compare.equalsIgnoreCase(header.getName(), "To")
                    || Compare.equalsIgnoreCase(header.getName(), "From"))
                orderedHeaders.add(header.getName() + header.getValue());

        }
        Collections.sort(orderedHeaders);
        StringBuffer allHeaders = new StringBuffer();
        for (String header : orderedHeaders)
            allHeaders.append(header);
        MessageDigest sha = MessageDigest.getInstance("SHA-1");
        byte[] bytes = allHeaders.toString().getBytes();
        InputStream is = new ByteArrayInputStream(bytes);
        DigestInputStream dis = new DigestInputStream(is, sha);
        while (dis.read() != -1)
            ;
        dis.close();
        byte[] digest = sha.digest();
        return toHex(digest);
    } catch (Exception e) {
        logger.error("failed to generate a uniqueid for a message");
        return null;
    }
}

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From source file:com.thoughtworks.go.agent.launcher.ServerBinaryDownloaderTest.java

@Test
public void shouldSetMd5AndSSLPortHeaders() throws Exception {
    ServerBinaryDownloader downloader = new ServerBinaryDownloader(
            ServerUrlGeneratorMother.generatorFor("localhost", server.getPort()), null,
            SslVerificationMode.NONE);/*  www .j a v a  2  s  .  c  o m*/
    downloader.downloadIfNecessary(DownloadableFile.AGENT);

    MessageDigest digester = MessageDigest.getInstance("MD5");
    try (BufferedInputStream stream = new BufferedInputStream(
            new FileInputStream(DownloadableFile.AGENT.getLocalFile()))) {
        try (DigestInputStream digest = new DigestInputStream(stream, digester)) {
            IOUtils.copy(digest, new NullOutputStream());
        }
        assertThat(downloader.getMd5(), is(Hex.encodeHexString(digester.digest()).toLowerCase()));
    }
}

---

From source file:com.quartz.AmazonQuartzJob.java

/**
 * Calculate content MD5 header values for feeds stored on disk.
 *//*from w  w  w  .jav a2s .  c om*/
public String computeContentMD5HeaderValue(FileInputStream fis) throws IOException, NoSuchAlgorithmException {
    DigestInputStream dis = new DigestInputStream(fis, MessageDigest.getInstance("MD5"));
    byte[] buffer = new byte[8192];
    while (dis.read(buffer) > 0)
        ;
    String md5Content = new String(
            org.apache.commons.codec.binary.Base64.encodeBase64(dis.getMessageDigest().digest()));
    // Effectively resets the stream to be beginning of the file
    // via a FileChannel.
    fis.getChannel().position(0);
    return md5Content;
}

---

From source file:de.elomagic.carafile.server.bl.SeedBean.java

public MetaData seedFile(final InputStream inputStream, final String filename)
        throws IOException, GeneralSecurityException, JMSException {
    LOG.debug("Seeding file " + filename);
    MetaData md;/*from   w  w  w  .j ava 2s .co m*/
    md = new MetaData();
    md.setFilename(filename);
    md.setCreationDate(new Date());
    md.setChunkSize(DEFAULT_PIECE_SIZE);
    md.setRegistryURI(UriBuilder.fromUri(registryURI).build());

    MessageDigest messageDigest = DigestUtils.getSha1Digest();
    long totalBytes = 0;

    try (DigestInputStream dis = new DigestInputStream(inputStream, messageDigest)) {
        byte[] buffer = new byte[md.getChunkSize()];
        int bytesRead;
        while ((bytesRead = readBlock(dis, buffer)) > 0) {
            totalBytes += bytesRead;
            String chunkId = Hex
                    .encodeHexString(DigestUtils.sha1(new ByteArrayInputStream(buffer, 0, bytesRead)));

            repositoryBean.writeChunk(chunkId, buffer, bytesRead);

            URI uri = UriBuilder.fromUri(ownURI).build();

            ChunkData chunkData = new ChunkData(chunkId, uri);
            md.addChunk(chunkData);
        }
    }

    md.setSize(totalBytes);
    md.setId(Hex.encodeHexString(messageDigest.digest()));

    LOG.debug("File id of seed file is " + md.getId() + "; Size=" + md.getSize() + "; Chunks="
            + md.getChunks().size());

    // Initiate to register at tracker
    LOG.debug("Queue up new file for registration.");
    Connection connection = connectionFactory.createConnection();
    Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
    MessageProducer messageProducer = session.createProducer(fileQueue);

    ObjectMessage message = session.createObjectMessage(md);

    messageProducer.send(message);

    connection.close();

    return md;
}

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From source file:com.docdoku.cli.helpers.FileHelper.java

public String downloadFile(File pLocalFile, String pURL)
        throws IOException, LoginException, NoSuchAlgorithmException {
    ConsoleProgressMonitorInputStream in = null;
    OutputStream out = null;//w  w w . j  a  va 2 s .  c o  m
    HttpURLConnection conn = null;
    try {
        //Hack for NTLM proxy
        //perform a head method to negociate the NTLM proxy authentication
        URL url = new URL(pURL);
        System.out.println("Downloading file: " + pLocalFile.getName() + " from " + url.getHost());
        performHeadHTTPMethod(url);

        out = new BufferedOutputStream(new FileOutputStream(pLocalFile), BUFFER_CAPACITY);

        conn = (HttpURLConnection) url.openConnection();
        conn.setUseCaches(false);
        conn.setAllowUserInteraction(true);
        conn.setRequestProperty("Connection", "Keep-Alive");
        conn.setRequestMethod("GET");
        byte[] encoded = Base64.encodeBase64((login + ":" + password).getBytes("ISO-8859-1"));
        conn.setRequestProperty("Authorization", "Basic " + new String(encoded, "US-ASCII"));
        conn.connect();
        manageHTTPCode(conn);

        MessageDigest md = MessageDigest.getInstance("MD5");
        in = new ConsoleProgressMonitorInputStream(conn.getContentLength(),
                new DigestInputStream(new BufferedInputStream(conn.getInputStream(), BUFFER_CAPACITY), md));
        byte[] data = new byte[CHUNK_SIZE];
        int length;

        while ((length = in.read(data)) != -1) {
            out.write(data, 0, length);
        }
        out.flush();

        byte[] digest = md.digest();
        return Base64.encodeBase64String(digest);
    } finally {
        if (out != null)
            out.close();
        if (in != null)
            in.close();
        if (conn != null)
            conn.disconnect();
    }
}

---

From source file:org.panbox.linux.desktop.identitymgmt.TestDownloadHashCompare.java

/**
 * Creates a Hash value for a given file
 * @param file/*from  www .ja  v a  2 s  . c o m*/
 * @return
 */
private byte[] createFileHash(File file) {
    MessageDigest md = null;
    try (InputStream is = Files.newInputStream(Paths.get(file.getAbsolutePath()))) {

        md = MessageDigest.getInstance("SHA-256");
        DigestInputStream dis = new DigestInputStream(is, md);

        /* Read stream to EOF as normal... */

        while (dis.available() > 0) {
            dis.read();
        }

    } catch (NoSuchAlgorithmException e) {
        fail();
    } catch (IOException e1) {
        fail();
    }
    byte[] digest = md.digest();

    //String h = Hex.encodeHexString( digest );

    return digest;
}

---

From source file:org.atombeat.xquery.functions.util.CopyFile.java

public Sequence eval(Sequence[] args, Sequence contextSequence) throws XPathException {

    // try to copy 
    try {//from  w  ww  .j  a  v a 2  s .co  m
        String from = args[0].getStringValue();
        String to = args[1].getStringValue();
        File fromFile = new File(from);
        File toFile = new File(to);

        InputStream in = new FileInputStream(fromFile);
        MessageDigest md5 = MessageDigest.getInstance("MD5");
        in = new DigestInputStream(in, md5);
        OutputStream out = new FileOutputStream(toFile);

        Stream.copy(in, out);

        String signature = new BigInteger(1, md5.digest()).toString(16);
        return new StringValue(signature);

    } catch (IOException ioe) {
        throw new XPathException(this, "An IO exception ocurred: " + ioe.getMessage(), ioe);
    } catch (NoSuchAlgorithmException e) {
        throw new XPathException(this, "A message digest exception ocurred: " + e.getMessage(), e);
    }

}

---

From source file:jobhunter.persistence.Persistence.java

private Optional<List<Subscription>> _readSubscriptions(final File file) {

    try (ZipFile zfile = new ZipFile(file)) {
        l.debug("Reading subscriptions from JHF File");
        final InputStream in = zfile.getInputStream(new ZipEntry("subscriptions.xml"));

        MessageDigest md = MessageDigest.getInstance("MD5");
        DigestInputStream dis = new DigestInputStream(in, md);

        final Object obj = xstream.fromXML(dis);

        updateLastMod(file, md);//from  w  w  w.j  a v a 2 s .c om

        return Optional.of(cast(obj));
    } catch (Exception e) {
        l.error("Failed to read file: {}", e.getMessage());
    }

    return Optional.empty();
}

---

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