Github user revans2 commented on a diff in the pull request:
https://github.com/apache/storm/pull/1173#discussion_r54728287
--- Diff:
storm-core/src/jvm/org/apache/storm/security/auth/AbstractSaslServerCallbackHandler.java
---
@@ -0,0 +1,77 @@
+package org.apache.storm.security.auth;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import javax.security.auth.callback.Callback;
+import javax.security.auth.callback.CallbackHandler;
+import javax.security.auth.callback.NameCallback;
+import javax.security.auth.callback.PasswordCallback;
+import javax.security.auth.callback.UnsupportedCallbackException;
+import javax.security.sasl.AuthorizeCallback;
+import javax.security.sasl.RealmCallback;
+import java.util.HashMap;
+import java.util.Map;
+
+public abstract class AbstractSaslServerCallbackHandler implements
CallbackHandler {
+ private static final Logger LOG =
LoggerFactory.getLogger(AbstractSaslServerCallbackHandler.class);
+ protected final Map<String,String> credentials = new HashMap<>();
+ protected String userName;
+
+ public void handle(Callback[] callbacks) throws
UnsupportedCallbackException {
+ for (Callback callback : callbacks) {
+ if (callback instanceof NameCallback) {
+ handleNameCallback((NameCallback) callback);
+ } else if (callback instanceof PasswordCallback) {
+ handlePasswordCallback((PasswordCallback) callback);
+ } else if (callback instanceof RealmCallback) {
+ handleRealmCallback((RealmCallback) callback);
+ } else if (callback instanceof AuthorizeCallback) {
+ handleAuthorizeCallback((AuthorizeCallback) callback);
+ }
+ }
+ }
+
+ private void handleNameCallback(NameCallback nc) {
+ LOG.debug("handleNameCallback");
+ userName = nc.getDefaultName();
+ nc.setName(nc.getDefaultName());
+ }
+
+ protected void handlePasswordCallback(PasswordCallback pc) {
+ LOG.debug("handlePasswordCallback");
+ if (credentials.containsKey(userName) ) {
+ pc.setPassword(credentials.get(userName).toCharArray());
+ } else {
+ LOG.warn("No password found for user: " + userName);
+ }
+ }
+
+ private void handleRealmCallback(RealmCallback rc) {
+ LOG.debug("handleRealmCallback: "+ rc.getDefaultText());
--- End diff --
Lets use the "{}" syntax here.
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