--- /dev/null
+package org.splat.kernel;
+/**
+ *
+ * @author Daniel Brunier-Coulin
+ * @copyright OPEN CASCADE 2012
+ */
+
+import java.util.Calendar;
+import java.util.Date;
+import java.util.Map;
+
+import javax.security.auth.*;
+import javax.security.auth.callback.*;
+import javax.security.auth.login.*;
+import javax.security.auth.spi.*;
+
+import org.apache.log4j.Logger;
+
+
+public class RealmLoginModule implements LoginModule {
+
+// Initial state
+ private Subject subject;
+ private CallbackHandler callbackHandler;
+// private Map sharedState;
+// private Map options;
+
+// Authentication status
+ private boolean succeeded = false;
+ private boolean commit = false;
+
+// Principal
+ private User identity = null;
+
+ private Logger logger = null;
+
+// ==============================================================================================================================
+// Constructor
+// ==============================================================================================================================
+
+ public void initialize(Subject user, CallbackHandler handler, Map<String, ?> state, Map<String, ?> opts) {
+// --------------------------------------------------------------------------------------------------------
+ subject = user;
+ callbackHandler = handler;
+// sharedState = state;
+// options = opts;
+// debug = "true".equalsIgnoreCase((String)options.get("debug"));
+ logger = Logger.getLogger(Database.class);
+ }
+
+// ==============================================================================================================================
+// Public services
+// ==============================================================================================================================
+
+ public boolean login() throws LoginException {
+// ----------------------
+ try {
+// Ask for username password
+ Callback[] callbacks = new Callback[2];
+ callbacks[0] = new NameCallback("username");
+ callbacks[1] = new PasswordCallback("password", false);
+
+ callbackHandler.handle(callbacks);
+
+ String username = ((NameCallback)callbacks[0]).getName();
+ String password = null;
+ char[] entered = ((PasswordCallback)callbacks[1]).getPassword();
+ if (entered != null) {
+ password = new String(entered);
+ ((PasswordCallback)callbacks[1]).clearPassword();
+ }
+
+// Authentication
+ User found = UserDirectory.selectUser(username, password);
+ if (found != null) {
+ identity = found;
+ succeeded = true;
+ Calendar today = java.util.Calendar.getInstance();
+ Date datime = today.getTime();
+ logger.info("RKV:Connection of " + identity.toString() + " " + datime.toString() + ".");
+ return true;
+ } else {
+ identity = null;
+ succeeded = false;
+ found = UserDirectory.selectUser(username);
+ String reason = "password";
+ if (found == null) reason = "username";
+ logger.info("Connection attempt as " + username + ".");
+ throw new FailedLoginException(reason);
+ }
+ }
+ catch (java.io.IOException ioe) {
+ throw new LoginException(ioe.toString());
+ }
+ catch (UnsupportedCallbackException uce) {
+ throw new LoginException("Error: " + uce.getCallback().toString() +
+ " not available to garner authentication information" +
+ " from the user");
+ }
+ }
+
+ public boolean commit() throws LoginException {
+// -----------------------
+ if (!succeeded) return false;
+
+ if (!subject.getPrincipals().contains(identity)) subject.getPrincipals().add(identity);
+ identity = null;
+ commit = true;
+ return true;
+ }
+
+ public boolean abort() throws LoginException {
+// ----------------------
+ if (!succeeded) {
+ return false;
+ } else
+ if (succeeded && !commit) {
+ identity = null;
+ succeeded = false;
+ } else {
+ logout();
+ }
+ return true;
+ }
+
+ public boolean logout() throws LoginException {
+// -----------------------
+ subject.getPrincipals().remove(identity);
+ identity = null;
+ succeeded = false;
+ commit = false; // To be validated
+ return true;
+ }
+}
\ No newline at end of file
