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:com.zimbra.cs.store.triton.TritonBlobStoreManager.java

@Override
public byte[] getHash(Blob blob) throws ServiceException, IOException {
    MessageDigest digest = newDigest();
    DigestInputStream dis = null;
    InputStream bis = null;/*from w  ww .j av  a  2  s .c o m*/
    try {
        bis = blob.getInputStream();
        dis = new DigestInputStream(bis, digest);
        while (dis.read() >= 0) {
        }
        return digest.digest();
    } finally {
        ByteUtil.closeStream(bis);
        ByteUtil.closeStream(dis);
    }
}

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From source file:org.opf_labs.fmts.fidget.TikaIdentifier.java

static final String hash64K(final InputStream stream) throws IOException {
    SHA256.reset();/*  ww  w.j a va 2s  .  c  o  m*/
    // Create input streams for digest calculation
    DigestInputStream SHA256Stream = new DigestInputStream(stream, SHA256);
    byte[] buff = new byte[HASH_LENGTH];
    // Read up to the 64K in on read
    SHA256Stream.read(buff, 0, HASH_LENGTH);
    // Return the new instance from the calulated details
    return Hex.encodeHexString(SHA256.digest());
}

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From source file:hudson.plugins.ec2.EC2AxisPrivateKey.java

static String digest(PrivateKey k) throws IOException {
    try {//from   www . j  av  a2  s.  co  m
        MessageDigest md5 = MessageDigest.getInstance("SHA1");

        DigestInputStream in = new DigestInputStream(new ByteArrayInputStream(k.getEncoded()), md5);
        try {
            while (in.read(new byte[128]) > 0)
                ; // simply discard the input
        } finally {
            in.close();
        }
        StringBuilder buf = new StringBuilder();
        char[] hex = Hex.encodeHex(md5.digest());
        for (int i = 0; i < hex.length; i += 2) {
            if (buf.length() > 0)
                buf.append(':');
            buf.append(hex, i, 2);
        }
        return buf.toString();
    } catch (NoSuchAlgorithmException e) {
        throw new AssertionError(e);
    }
}

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From source file:at.diamonddogs.net.WebClient.java

private void saveData(InputStream i) throws IOException {
    if (i == null) {
        return;//from w  ww  .ja  va  2  s .co m
    }
    TempFile tmp = webRequest.getTmpFile().second;
    FileOutputStream fos = null;
    try {

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

        File file = new File(tmp.getPath());
        Log.d(TAG, file.getAbsolutePath() + "can write: " + file.canWrite());
        if (file.exists() && !tmp.isAppend()) {
            file.delete();
        }
        byte buffer[] = new byte[READ_BUFFER_SIZE];
        fos = new FileOutputStream(file, tmp.isAppend());
        int bytesRead = 0;
        while ((bytesRead = dis.read(buffer)) != -1) {
            if (!webRequest.isCancelled()) {
                fos.write(buffer, 0, bytesRead);
                publishDownloadProgress(bytesRead);
            } else {
                Log.i(TAG, "Cancelled Download");
                break;
            }
        }
        fos.flush();
        fos.close();

        if (webRequest.isCancelled()) {
            Log.i(TAG, "delete file due to canclled download: " + file.getName());
            file.delete();
        } else {

            if (tmp.isUseChecksum()) {
                String md5 = new String(Hex.encodeHex(md.digest()));

                Log.d(TAG, "md5 check, original: " + tmp.getChecksum() + " file: " + md5);

                if (!md5.equalsIgnoreCase(tmp.getChecksum())) {
                    throw new IOException("Error while downloading File.\nOriginal Checksum: "
                            + tmp.getChecksum() + "\nChecksum: " + md5);
                }
            }
        }

    } catch (Exception e) {
        if (fos != null && tmp.isAppend()) {
            fos.flush();
            fos.close();
        }
        Log.e(TAG, "Failed download", e);
        // Please do not do that - that hides the original error!
        throw new IOException(e.getMessage());

        // Who ever changed this... new IOException(e) is API level 9!!! and
        // gives a nice NoSuchMethodException :)
        // throw new IOException(e);
    }
}

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From source file:de.csdev.ebus.cfg.std.EBusConfigurationReader.java

@Override
public IEBusCommandCollection loadConfigurationCollection(URL url)
        throws IOException, EBusConfigurationReaderException {

    if (registry == null) {
        throw new RuntimeException("Unable to load configuration without EBusType set!");
    }/*from   w  w w .ja  v  a  2  s . c  om*/

    if (url == null) {
        throw new IllegalArgumentException("Required argument url is null!");
    }

    Type merchantListType = new TypeToken<List<EBusValueDTO>>() {
    }.getType();

    Gson gson = new Gson();
    gson = new GsonBuilder().registerTypeAdapter(merchantListType, new EBusValueJsonDeserializer()).create();

    MessageDigest md = null;

    try {
        md = MessageDigest.getInstance("MD5");
    } catch (NoSuchAlgorithmException e) {
        throw new IOException(e);
    }

    // collect md5 hash while reading file
    DigestInputStream dis = new DigestInputStream(url.openStream(), md);

    EBusCollectionDTO collection = gson.fromJson(new InputStreamReader(dis), EBusCollectionDTO.class);

    EBusCommandCollection commandCollection = new EBusCommandCollection(collection.getId(),
            collection.getLabel(), collection.getDescription(), collection.getProperties());

    // add md5 hash
    commandCollection.setSourceHash(md.digest());
    commandCollection.setIdentification(collection.getIdentification());

    // parse the template block
    parseTemplateConfiguration(collection);

    if (collection.getCommands() != null) {
        for (EBusCommandDTO commandDto : collection.getCommands()) {
            if (commandDto != null) {
                commandCollection.addCommand(parseTelegramConfiguration(commandCollection, commandDto));
            }
        }
    }

    return commandCollection;
}

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From source file:org.eclipse.packagedrone.utils.rpm.build.PayloadRecorder.java

public Result addFile(final String targetPath, final Path path, final Consumer<CpioArchiveEntry> customizer)
        throws IOException {
    final long size = Files.size(path);

    final CpioArchiveEntry entry = new CpioArchiveEntry(targetPath);
    entry.setSize(size);/*w ww.j av a 2s.c  o  m*/

    if (customizer != null) {
        customizer.accept(entry);
    }

    this.archiveStream.putArchiveEntry(entry);

    MessageDigest digest;
    try {
        digest = createDigest();
    } catch (final NoSuchAlgorithmException e) {
        throw new IOException(e);
    }

    try (InputStream in = new BufferedInputStream(Files.newInputStream(path))) {
        ByteStreams.copy(new DigestInputStream(in, digest), this.archiveStream);
    }

    this.archiveStream.closeArchiveEntry();

    return new Result(size, digest.digest());
}

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From source file:org.cdmckay.coffeep.Program.java

private static ClassFile getClassFile(JavaFileObject fileObject, CoffeepSystemInfo systemInfo)
        throws IOException, ConstantPoolException {
    if (fileObject == null) {
        throw new IllegalArgumentException("fileObject cannot be null");
    }//from   w w  w .  j a  v a  2 s .  c  o  m
    if (systemInfo == null) {
        throw new IllegalArgumentException("systemInfo cannot be null");
    }

    InputStream inputStream = fileObject.openInputStream();
    try {
        MessageDigest messageDigest = null;
        try {
            messageDigest = MessageDigest.getInstance("MD5");
        } catch (NoSuchAlgorithmException e) {
            logger.warn("Exception while getting MD5 MessageDigest", e);
        }

        DigestInputStream digestInputStream = new DigestInputStream(inputStream, messageDigest);
        CountingInputStream countingInputStream = new CountingInputStream(digestInputStream);

        Attribute.Factory attributeFactory = new Attribute.Factory();
        ClassFile classFile = ClassFile.read(countingInputStream, attributeFactory);

        systemInfo.classFileUri = fileObject.toUri();
        systemInfo.classFileSize = countingInputStream.getSize();
        systemInfo.lastModifiedTimestamp = fileObject.getLastModified();
        if (messageDigest != null) {
            systemInfo.digestAlgorithm = messageDigest.getAlgorithm();
            systemInfo.digest = new BigInteger(1, messageDigest.digest()).toString(16);
        }

        return classFile;
    } finally {
        inputStream.close();
    }
}

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From source file:com.vmware.identity.idm.CommonUtil.java

public static String Computesha256Hash(File secretFile) throws IOException, NoSuchAlgorithmException {
    FileInputStream fs = null;//from   w w  w. java2s. co  m
    try {
        fs = new FileInputStream(secretFile);
        MessageDigest md = MessageDigest.getInstance("SHA-256");
        DigestInputStream dis = new DigestInputStream(fs, md);
        while ((dis.read()) != -1)
            ;
        BigInteger bi = new BigInteger(md.digest());
        return bi.toString(64);
    } finally {
        if (fs != null) {
            fs.close();
        }
    }
}

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From source file:uk.bl.wa.util.HashedCachedInputStream.java

/**
 * @param header/*w  w  w .j  ava  2  s.co  m*/
 * @param in
 * @param length
 */
private void init(ArchiveRecordHeader header, InputStream in, long length) {
    url = Normalisation.sanitiseWARCHeaderValue(header.getUrl());
    try {
        digest = MessageDigest.getInstance(MessageDigestAlgorithms.SHA_1);
    } catch (NoSuchAlgorithmException e) {
        log.error("Hashing: " + url + "@" + header.getOffset(), e);
    }

    try {
        if (header.getHeaderFieldKeys().contains(HEADER_KEY_PAYLOAD_DIGEST)) {
            headerHash = (String) header.getHeaderValue(HEADER_KEY_PAYLOAD_DIGEST);
        }

        // Create a suitable outputstream for caching the content:
        OutputStream cache = null;
        if (length < inMemoryThreshold) {
            inMemory = true;
            cache = new ByteArrayOutputStream();
        } else {
            inMemory = false;
            cacheFile = File.createTempFile("warc-indexer", ".cache");
            cacheFile.deleteOnExit();
            cache = new FileOutputStream(cacheFile);
        }

        DigestInputStream dinput = new DigestInputStream(in, digest);

        long toCopy = length;
        if (length > this.onDiskThreshold) {
            toCopy = this.onDiskThreshold;
        }
        IOUtils.copyLarge(dinput, cache, 0, toCopy);
        cache.close();

        // Read the remainder of the stream, to get the hash.
        if (length > this.onDiskThreshold) {
            truncated = true;
            IOUtils.skip(dinput, length - this.onDiskThreshold);
        }

        hash = "sha1:" + Base32.encode(digest.digest());

        // For response records, check the hash is consistent with any header hash:
        if ((headerHash != null) && (hash.length() == headerHash.length())) {
            if (header.getHeaderFieldKeys().contains(HEADER_KEY_TYPE) && header.getHeaderValue(HEADER_KEY_TYPE)
                    .equals(WARCConstants.WARCRecordType.response.toString())) {
                if (!headerHash.equals(hash)) {
                    log.error("Hashes are not equal for this input!");
                    log.error(" - payload hash from header = " + headerHash);
                    log.error(" - payload hash from content = " + hash);
                    throw new RuntimeException("Hash check failed!");
                } else {
                    log.debug("Hashes were found to match for " + url);
                }
            } else {
                // For revisit records, use the hash of the revisited payload:
                // TODO this should actually only do it for revisit type records.
                this.hash = this.headerHash;
            }
        }

        // Now set up the inputStream
        if (inMemory) {
            this.cacheBytes = ((ByteArrayOutputStream) cache).toByteArray();
            // Encourage GC
            cache = null;
        }
    } catch (Exception i) {
        log.error("Hashing: " + url + "@" + header.getOffset(), i);
    }
}

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

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

    RequestModule reqModule = (RequestModule) context.getModule(RequestModule.NAMESPACE_URI);

    // request object is read from global variable $request
    Variable var = reqModule.resolveVariable(RequestModule.REQUEST_VAR);

    if (var == null || var.getValue() == null)
        throw new XPathException(this, "No request object found in the current XQuery context.");

    if (var.getValue().getItemType() != Type.JAVA_OBJECT)
        throw new XPathException(this, "Variable $request is not bound to an Java object.");

    JavaObjectValue value = (JavaObjectValue) var.getValue().itemAt(0);

    if (!(value.getObject() instanceof RequestWrapper)) {
        throw new XPathException(this, "Variable $request is not bound to a Request object.");
    }/*from   w  ww .  j  a  va  2s  .c  om*/

    RequestWrapper request = (RequestWrapper) value.getObject();

    // try to copy upload
    try {
        String paramName = args[0].getStringValue();
        String path = args[1].getStringValue();
        File upload = request.getFileUploadParam(paramName);
        File file = new File(path);
        InputStream in = new FileInputStream(upload);
        MessageDigest md5 = MessageDigest.getInstance("MD5");
        in = new DigestInputStream(in, md5);
        OutputStream out = new FileOutputStream(file);

        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);
    }

}

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