public String newNonce(Request request) {
long ts = request.getTimeStamp();
long sk = _nonceSecret;
byte[] nounce = new byte[24];
for (int i = 0; i < 8; i++) {
nounce[i] = (byte) (ts & 0xff);
ts = ts >> 8;
nounce[8 + i] = (byte) (sk & 0xff);
sk = sk >> 8;
}
byte[] hash = null;
try {
MessageDigest md = MessageDigest.getInstance("MD5");
md.reset();
md.update(nounce, 0, 16);
hash = md.digest();
} catch (Exception e) {
Log.warn(e);
}
for (int i = 0; i < hash.length; i++) {
nounce[8 + i] = hash[i];
if (i == 23) {
break;
}
}
return new String(B64Code.encode(nounce));
}
private void updateResponses(Request request) {
final int response = request.getResponse().getStatus() / 100;
if (response >= 1 && response <= 5) {
responses[response - 1].mark();
}
activeRequests.dec();
final long elapsedTime = System.currentTimeMillis() - request.getTimeStamp();
requests.update(elapsedTime, TimeUnit.MILLISECONDS);
requestTimer(request.getMethod()).update(elapsedTime, TimeUnit.MILLISECONDS);
}
/* ------------------------------------------------------------ */
private int checkNonce(String nonce, Request request) {
try {
byte[] n = B64Code.decode(nonce.toCharArray());
if (n.length != 24) {
return -1;
}
long ts = 0;
long sk = _nonceSecret;
byte[] n2 = new byte[16];
System.arraycopy(n, 0, n2, 0, 8);
for (int i = 0; i < 8; i++) {
n2[8 + i] = (byte) (sk & 0xff);
sk = sk >> 8;
ts = (ts << 8) + (0xff & (long) n[7 - i]);
}
long age = request.getTimeStamp() - ts;
if (Log.isDebugEnabled()) {
Log.debug("age=" + age);
}
byte[] hash = null;
try {
MessageDigest md = MessageDigest.getInstance("MD5");
md.reset();
md.update(n2, 0, 16);
hash = md.digest();
} catch (Exception e) {
Log.warn(e);
}
for (int i = 0; i < 16; i++) {
if (n[i + 8] != hash[i]) {
return -1;
}
}
if (_maxNonceAge > 0 && (age < 0 || age > _maxNonceAge)) {
return 0; // stale
}
return 1;
} catch (Exception e) {
Log.ignore(e);
}
return -1;
}
@Override
public void handle(
String path,
Request request,
HttpServletRequest httpRequest,
HttpServletResponse httpResponse)
throws IOException, ServletException {
activeDispatches.inc();
final long start;
final HttpChannelState state = request.getHttpChannelState();
if (state.isInitial()) {
// new request
activeRequests.inc();
start = request.getTimeStamp();
} else {
// resumed request
start = System.currentTimeMillis();
activeSuspended.dec();
if (state.getState() == State.DISPATCHED) {
asyncDispatches.mark();
}
}
try {
super.handle(path, request, httpRequest, httpResponse);
} finally {
final long now = System.currentTimeMillis();
final long dispatched = now - start;
activeDispatches.dec();
dispatches.update(dispatched, TimeUnit.MILLISECONDS);
if (state.isSuspended()) {
if (state.isInitial()) {
state.addListener(listener);
}
activeSuspended.inc();
} else if (state.isInitial()) {
requests.update(dispatched, TimeUnit.MILLISECONDS);
updateResponses(request);
}
// else onCompletion will handle it.
}
}
@Override
public void log(Request request, Response response) {
// copied almost entirely from NCSARequestLog
final StringBuilder buf = new StringBuilder(256);
String address = request.getHeader(HttpHeaders.X_FORWARDED_FOR);
if (address == null) {
address = request.getRemoteAddr();
}
buf.append(address);
buf.append(" - ");
final Authentication authentication = request.getAuthentication();
if (authentication instanceof Authentication.User) {
buf.append(
((Authentication.User) authentication).getUserIdentity().getUserPrincipal().getName());
} else {
buf.append('-');
}
buf.append(" [");
buf.append(dateCache.format(request.getTimeStamp()));
buf.append("] \"");
buf.append(request.getMethod());
buf.append(' ');
buf.append(request.getUri().toString());
buf.append(' ');
buf.append(request.getProtocol());
buf.append("\" ");
// TODO: Handle async requests?
// e.g. if (request.getAsyncContinuation().isInitial())
assert !request.isAsyncStarted();
int status = response.getStatus();
if (status <= 0) {
if (request.isHandled()) {
status = 200;
} else {
status = 404;
}
}
buf.append((char) ('0' + ((status / 100) % 10)));
buf.append((char) ('0' + ((status / 10) % 10)));
buf.append((char) ('0' + (status % 10)));
final long responseLength = response.getContentCount();
if (responseLength >= 0) {
buf.append(' ');
if (responseLength > 99999) {
buf.append(responseLength);
} else {
if (responseLength > 9999) {
buf.append((char) ('0' + ((responseLength / 10000) % 10)));
}
if (responseLength > 999) {
buf.append((char) ('0' + ((responseLength / 1000) % 10)));
}
if (responseLength > 99) {
buf.append((char) ('0' + ((responseLength / 100) % 10)));
}
if (responseLength > 9) {
buf.append((char) ('0' + ((responseLength / 10) % 10)));
}
buf.append((char) ('0' + (responseLength % 10)));
}
} else {
buf.append(" -");
}
final long now = System.currentTimeMillis();
final long dispatchTime = request.getDispatchTime();
buf.append(' ');
buf.append(now - ((dispatchTime == 0) ? request.getTimeStamp() : dispatchTime));
buf.append(' ');
buf.append(now - request.getTimeStamp());
System.out.println(buf.toString());
}