List of usage examples for java.security DigestInputStream read
public int read(byte b[]) throws IOException
b.length bytes of data from this input stream into an array of bytes. From source file:com.aurel.track.dbase.HandleHome.java
public static String computeHash(URL url) { InputStream from = null;/* w w w . j ava 2 s . c o m*/ String hash = ""; try { MessageDigest md = MessageDigest.getInstance("MD5"); from = url.openStream(); // Create input stream byte[] buffer = new byte[4096]; // To hold file contents DigestInputStream dis = new DigestInputStream(from, md); while (dis.read(buffer) != -1) { } byte[] digest = md.digest(); dis.close(); from.close(); hash = DatatypeConverter.printHexBinary(digest); } catch (Exception e) { LOGGER.error(e.getMessage()); } // Always close the stream, even if exceptions were thrown finally { if (from != null) try { from.close(); } catch (IOException e) { } } return hash; }
From source file:com.quartz.AmazonQuartzJob.java
/** * Calculate content MD5 header values for feeds stored on disk. *//*w w w .j a v a 2 s. c o m*/ 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:cn.ctyun.amazonaws.auth.AbstractAWSSigner.java
protected byte[] hash(InputStream input) throws AmazonClientException { try {/*from w w w . ja v a 2 s . c om*/ MessageDigest md = MessageDigest.getInstance("SHA-256"); DigestInputStream digestInputStream = new DigestInputStream(input, md); byte[] buffer = new byte[1024]; while (digestInputStream.read(buffer) > -1) ; return digestInputStream.getMessageDigest().digest(); } catch (Exception e) { throw new AmazonClientException("Unable to compute hash while signing request: " + e.getMessage(), e); } }
From source file:pt.lunacloud.auth.AbstractAWSSigner.java
protected byte[] hash(InputStream input) throws LunacloudClientException { try {/*from www . jav a 2s. c om*/ MessageDigest md = MessageDigest.getInstance("SHA-256"); DigestInputStream digestInputStream = new DigestInputStream(input, md); byte[] buffer = new byte[1024]; while (digestInputStream.read(buffer) > -1) ; return digestInputStream.getMessageDigest().digest(); } catch (Exception e) { throw new LunacloudClientException("Unable to compute hash while signing request: " + e.getMessage(), e); } }
From source file:com.sina.auth.AbstractAWSSigner.java
protected byte[] hash(InputStream input) throws SCSClientException { try {/*from w ww .j a v a 2 s . c o m*/ MessageDigest md = MessageDigest.getInstance("SHA-256"); DigestInputStream digestInputStream = new DigestInputStream(input, md); byte[] buffer = new byte[1024]; while (digestInputStream.read(buffer) > -1) ; return digestInputStream.getMessageDigest().digest(); } catch (Exception e) { throw new SCSClientException("Unable to compute hash while signing request: " + e.getMessage(), e); } }
From source file:com.mum.app.AutoSubmitPriceApp.java
private String computeContentMD5HeaderValue(InputStream fis) throws IOException, NoSuchAlgorithmException { DigestInputStream dis = new DigestInputStream(fis, MessageDigest.getInstance("MD5")); byte[] buffer = new byte[8192]; while (dis.read(buffer) > 0) ;// w w w . ja v a 2s. com String md5Content = new String( org.apache.commons.codec.binary.Base64.encodeBase64(dis.getMessageDigest().digest())); return md5Content; }
From source file:org.deventropy.shared.utils.DirectoryArchiverUtilTest.java
private byte[] getMd5Digest(final InputStream inputStream, final boolean closeStream) throws IOException { try {//from w w w.ja v a 2 s . c om final MessageDigest md = MessageDigest.getInstance("MD5"); final DigestInputStream dis = new DigestInputStream(inputStream, md); final byte[] buf = new byte[MAX_FILE_SIZE]; int len = 0; while (len != -1) { len = dis.read(buf); } return md.digest(); } catch (NoSuchAlgorithmException e) { throw new IOException(e); } finally { if (closeStream && null != inputStream) { inputStream.close(); } } }
From source file:com.jrummyapps.android.safetynet.SafetyNetHelper.java
@Nullable private String getApkDigestSha256() { try {//from w w w . j a v a 2 s . com FileInputStream fis = new FileInputStream(context.getPackageCodePath()); MessageDigest md = MessageDigest.getInstance(SHA_256); try { DigestInputStream dis = new DigestInputStream(fis, md); byte[] buffer = new byte[2048]; while (dis.read(buffer) != -1) { // } dis.close(); } finally { fis.close(); } return Base64.encodeToString(md.digest(), Base64.NO_WRAP); } catch (IOException | NoSuchAlgorithmException e) { return null; } }
From source file:at.diamonddogs.net.WebClient.java
private void saveData(InputStream i) throws IOException { if (i == null) { return;//from ww w. ja v a 2 s .c o 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); } }
From source file:com.example.download.DownloadThread.java
/** * Prepare the destination file to receive data. If the file already exists, we'll set up * appropriately for resumption.//from w ww .j ava 2 s. c o m */ private void setupDestinationFile(State state, InnerState innerState) throws StopRequest { if (!TextUtils.isEmpty(state.mFilename)) { // only true if we've already run a thread for this download if (!Helper.isFilenameValid(state.mFilename, state.mSourceType)) { // this should never happen throw new StopRequest(DownloadManager.Impl.STATUS_FILE_ERROR, "found invalid internal destination filename"); } // We're resuming a download that got interrupted File f = new File(state.mFilename); if (f.exists()) { long fileLength = f.length(); if (fileLength == 0) { // The download hadn't actually started, we can restart from scratch f.delete(); state.mFilename = null; } else if (mInfo.mETag == null) { // This should've been caught upon failure f.delete(); throw new StopRequest(DownloadManager.Impl.STATUS_CANNOT_RESUME, "Trying to resume a download that can't be resumed"); } else { // All right, we'll be able to resume this download try { state.mStream = new FileOutputStream(state.mFilename, true); FileInputStream fis = new FileInputStream(state.mFilename); DigestInputStream dis = new DigestInputStream(fis, state.mDigester); byte[] buffer = new byte[8192]; while (dis.read(buffer) != -1) { // read the digest } dis.close(); fis.close(); } catch (FileNotFoundException exc) { throw new StopRequest(DownloadManager.Impl.STATUS_FILE_ERROR, "while opening destination for resuming: " + exc.toString(), exc); } catch (IOException e) { throw new StopRequest(DownloadManager.Impl.STATUS_FILE_ERROR, "while opening destination for resuming: " + e.toString(), e); } innerState.mBytesSoFar = (int) fileLength; if (mInfo.mTotalBytes != -1) { innerState.mHeaderContentLength = Long.toString(mInfo.mTotalBytes); } innerState.mHeaderETag = mInfo.mETag; innerState.mContinuingDownload = true; } } } if (state.mStream != null && mInfo.mDestination == DownloadManager.Impl.DESTINATION_EXTERNAL) { closeDestination(state); } }