/**
* Calculates the signature by concatenating the single values with each other, adding the
* sharedSecret and using the MD5 algorithm (HMAC-MD5).
*
* @param uuid osd uuid
* @param filesize new filesize
* @param truncateEpoch current truncate epoch
* @param expireTimeSet set of all finalized expireTimes
* @return a signature for a FinalizeVouchersResponse
*/
public String createSignature(
String uuid, long filesize, long truncateEpoch, Set<Long> expireTimeSet) {
String plainText = uuid + Long.toString(filesize) + Long.toString(truncateEpoch);
for (Long expireTime : expireTimeSet) {
plainText += expireTime.toString();
}
plainText += sharedSecret;
try {
MessageDigest md5 = MessageDigest.getInstance("MD5");
md5.update(plainText.getBytes());
byte[] digest = md5.digest();
return OutputUtils.byteArrayToHexString(digest);
} catch (NoSuchAlgorithmException exc) {
Logging.logError(Logging.LEVEL_ERROR, this, exc);
return null;
}
}
/** Main loop. */
public void run() {
// initially fetch the list of MRCs from the Directory Service
try {
knownMRCs =
master
.getDirClient()
.xtreemfs_service_get_by_type(
null,
RPCAuthentication.authNone,
RPCAuthentication.userService,
ServiceType.SERVICE_TYPE_MRC)
.toBuilder();
} catch (Throwable exc) {
this.notifyCrashed(exc);
}
notifyStarted();
if (Logging.isInfo())
Logging.logMessage(
Logging.LEVEL_INFO,
Category.lifecycle,
this,
"MRC status manager operational, using DIR %s",
master.getConfig().getDirectoryService().toString());
while (!quit) {
synchronized (this) {
try {
this.wait(
knownMRCs == null || knownMRCs.getServicesCount() == 0
? checkIntervalMillis / 2
: checkIntervalMillis);
} catch (InterruptedException ex) {
break;
}
}
Logging.logMessage(
Logging.LEVEL_DEBUG, Category.misc, this, "sending request for MRC list to DIR...");
try {
// request list of registered MRCs from Directory
// Service
knownMRCs =
master
.getDirClient()
.xtreemfs_service_get_by_type(
null,
RPCAuthentication.authNone,
RPCAuthentication.userService,
ServiceType.SERVICE_TYPE_MRC)
.toBuilder();
Logging.logMessage(
Logging.LEVEL_DEBUG, Category.misc, this, "... received MRC list from DIR");
evaluateResponse(knownMRCs);
} catch (InterruptedException ex) {
break;
} catch (Exception exc) {
if (!quit)
Logging.logMessage(
Logging.LEVEL_ERROR, Category.misc, this, OutputUtils.stackTraceToString(exc));
}
synchronized (syncLock) {
syncLock.notifyAll();
}
}
notifyStopped();
}
@Override
public void handle(HttpExchange httpExchange) throws IOException {
sendResponse(httpExchange, OutputUtils.getThreadDump());
}