}
}
private void doAuth() {
SaslClient saslClient = null;
try {
saslClient = Sasl.createSaslClient(authInfo.getMechanisms(), null,
"memcached", memcachedTCPSession.getRemoteSocketAddress()
.toString(), null, this.authInfo
.getCallbackHandler());
final AtomicBoolean done = new AtomicBoolean(false);
byte[] response = saslClient.hasInitialResponse() ? saslClient
.evaluateChallenge(EMPTY_BYTES) : EMPTY_BYTES;
CountDownLatch latch = new CountDownLatch(1);
Command command = this.commandFactory.createAuthStartCommand(
saslClient.getMechanismName(), latch, response);
if (!this.memcachedTCPSession.isClosed())
this.memcachedTCPSession.write(command);
else {
log
.error("Authentication fail,because the connection has been closed");
throw new RuntimeException(
"Authentication fai,connection has been close");
}
while (!done.get()) {
try {
latch.await();
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
done.set(true);
}
ResponseStatus responseStatus = ((BaseBinaryCommand) command)
.getResponseStatus();
switch (responseStatus) {
case NO_ERROR:
done.set(true);
log.info("Authentication to "
+ this.memcachedTCPSession.getRemoteSocketAddress()
+ " successfully");
break;
case AUTH_REQUIRED:
log
.error("Authentication failed to "
+ this.memcachedTCPSession
.getRemoteSocketAddress());
log.warn("Reopen connection to "
+ this.memcachedTCPSession.getRemoteSocketAddress()
+ ",beacause auth fail");
this.memcachedTCPSession.setAuthFailed(true);
// It it is not first time,try to sleep 1 second
if (!this.authInfo.isFirstTime()) {
Thread.sleep(1000);
}
this.memcachedTCPSession.close();
done.set(true);
break;
case FUTHER_AUTH_REQUIRED:
String result = (String) command.getResult();
response = saslClient.evaluateChallenge(ByteUtils
.getBytes(result));
latch = new CountDownLatch(1);
command = commandFactory.createAuthStepCommand(saslClient
.getMechanismName(), latch, response);
if (!this.memcachedTCPSession.isClosed())
this.memcachedTCPSession.write(command);
else {
log
.error("Authentication fail,because the connection has been closed");
throw new RuntimeException(
"Authentication fai,connection has been close");
}
break;
default:
done.set(true);
log.error("Authentication failed to "
+ this.memcachedTCPSession.getRemoteSocketAddress()
+ ",response status=" + responseStatus);
break;
}
}
} catch (Exception e) {
log.error("Create saslClient error", e);
} finally {
if (saslClient != null) {
try {
saslClient.dispose();
} catch (SaslException e) {
log.error("Dispose saslClient error", e);
}
}
}