public static boolean checkMd5sum(File file, String checkCode) throws IOException {
DigestInputStream dInput = null;
try {
FileInputStream fInput = new FileInputStream(file);
dInput = new DigestInputStream(fInput, getMd5Instance());
byte[] buf = new byte[8192];
while (dInput.read(buf) > 0) {}
byte[] bytes = dInput.getMessageDigest().digest();
return bytes2hex(bytes).equals(checkCode);
} finally {
closeQuietly(dInput);
}
}
public static String getMd5(File file) {
DigestInputStream stream = null;
try {
stream =
new DigestInputStream(
new java.io.FileInputStream(file), MessageDigest.getInstance("MD5"));
byte[] buffer = new byte[' '];
while (stream.read(buffer) != -1) {}
stream.close();
} catch (Exception ignored) {
return null;
}
return String.format(
"%1$032x", new Object[] {new BigInteger(1, stream.getMessageDigest().digest())});
}
/**
* Creates a Fingerprint based on the contents of a file.
*
* <p>Note that this will close() stream after calculating the digest.
*
* @param byteCount length of original data will be stored at byteCount[0] as a side product of
* the fingerprint calculation
*/
public static Fingerprint fromInputStream(InputStream stream, long[] byteCount)
throws IOException {
DigestInputStream in = null;
long count = 0;
try {
in = new DigestInputStream(stream, DIGESTER);
byte[] bytes = new byte[8192];
while (true) {
// scan through file to compute a fingerprint.
int n = in.read(bytes);
if (n < 0) break;
count += n;
}
} finally {
if (in != null) in.close();
}
if ((byteCount != null) && (byteCount.length > 0)) byteCount[0] = count;
return new Fingerprint(in.getMessageDigest().digest());
}
@Override
public UploadedFileInfo call() throws Exception {
UploadedFileInfo ufi;
Path targetFile = createTempFile();
StopWatch sw = new StopWatch();
sw.start();
try {
LOGGER.debug(
"Saving {} ({}) Expected MD5:{}...",
targetFile.toString(),
Util.byteCountToDisplaySize(expectedLength),
expectedMd5);
this.actualLength = saveStreamToFile(this.dis, targetFile);
this.actualMd5 = Hex.encodeHexString(dis.getMessageDigest().digest());
verifyExpecteds();
ufi = new UploadedFileInfo(targetFile, this.actualLength, this.actualMd5);
sw.stop();
LOGGER.debug(
"Saved {} ({}) Computed MD5:{}, Time: {}, Speed: {}",
ufi.getFilepath().toString(),
Util.byteCountToDisplaySize(ufi.getSize()),
ufi.getMd5(),
sw.getTimeElapsedFormatted(),
sw.getRate(ufi.getSize()));
} catch (Exception e) {
LOGGER.error(
"Error saving {} ({} bytes) Expected MD5:{} - {}",
targetFile.toString(),
this.expectedLength,
this.expectedMd5,
e.getMessage());
throw e;
} finally {
IOUtils.closeQuietly(dis);
}
return ufi;
}
