[AS7-2490] Add username/password support when connecting to the server.

These values can be specified in the configuration, if not specified the user
will be prompted.

README

@@ -26,6 +26,10 @@ Configuration information can also be specified. The following configurations ar
 
 - <port /> The port the server is listening for administration requests on. The default is 9999.
 
+- <username /> The username to connect as if prompted to authenticate by the server.
+
+- <password /> The password to use for authentication if prompted by the server.
+
 - <force /> Whether or not for force the actions, e.g. if the deploy goal is executed redeploy if it already exists. The default is true.
 
 Goals:

src/main/java/org/jboss/as/plugin/deployment/common/AbstractServerConnection.java

@@ -56,6 +56,25 @@ public abstract class AbstractServerConnection extends AbstractMojo {
      */
     private int port;
 
+    /**
+     * Specifies the username to use if prompted to authenticate by the server.
+     *
+     * If no username is specified and the server requests authentication the user
+     * will be prompted to supply the username,
+     *
+     * @parameter
+     */
+    private String username;
+
+    /**
+     * Specifies the password to use if prompted to authenticate by the server.
+     *
+     * If no password is specified and the server requests authentication the user
+     * will be prompted to supply the password,
+     *
+     * @parameter
+     */
+    private String password;
 
     /**
      * The hostname to deploy the archive to. The default is localhost.
@@ -113,7 +132,8 @@ protected final ModelControllerClient client() throws UnknownHostException {
         if (client == null) {
             synchronized (this) {
                 if (client == null) {
-                    client = ModelControllerClient.Factory.create(hostAddress(), port());
+                    client = ModelControllerClient.Factory.create(hostAddress(), port(),
+                                                                  new ClientCallbackHandler(username, password));
                 }
             }
         }

src/main/java/org/jboss/as/plugin/deployment/common/ClientCallbackHandler.java

@@ -0,0 +1,107 @@
+/*
+ * JBoss, Home of Professional Open Source.
+ * Copyright 2010, Red Hat, Inc., and individual contributors
+ * as indicated by the @author tags. See the copyright.txt file in the
+ * distribution for a full listing of individual contributors.
+ *
+ * This is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This software is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this software; if not, write to the Free
+ * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
+ */
+package org.jboss.as.plugin.deployment.common;
+
+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.RealmCallback;
+import javax.security.sasl.RealmChoiceCallback;
+import java.io.IOException;
+
+/**
+ * A CallbackHandler implementation to supply the username and password if required when
+ * connecting to the server - if these are not available the user will be prompted to
+ * supply them.
+ *
+ * @author <a href="mailto:darran.lofthouse@jboss.com">Darran Lofthouse</a>
+ */
+class ClientCallbackHandler implements CallbackHandler {
+
+    private boolean promptShown = false;
+    private String username;
+    private char[] password;
+
+    ClientCallbackHandler(final String username, final String password) {
+        this.username = username;
+        if (password != null) {
+            this.password = password.toCharArray();
+        }
+    }
+
+    public void handle(Callback[] callbacks) throws IOException, UnsupportedCallbackException {
+        // Special case for anonymous authentication to avoid prompting user for their name.
+        if (callbacks.length == 1 && callbacks[0] instanceof NameCallback) {
+            ((NameCallback) callbacks[0]).setName("anonymous demo user");
+            return;
+        }
+
+        for (Callback current : callbacks) {
+            if (current instanceof RealmCallback) {
+                RealmCallback rcb = (RealmCallback) current;
+                String defaultText = rcb.getDefaultText();
+                rcb.setText(defaultText); // For now just use the realm suggested.
+
+                prompt(defaultText);
+            } else if (current instanceof RealmChoiceCallback) {
+                throw new UnsupportedCallbackException(current, "Realm choice not currently supported.");
+            } else if (current instanceof NameCallback) {
+                NameCallback ncb = (NameCallback) current;
+                String userName = obtainUsername("Username:");
+
+                ncb.setName(userName);
+            } else if (current instanceof PasswordCallback) {
+                PasswordCallback pcb = (PasswordCallback) current;
+                char[] password = obtainPassword("Password:");
+
+                pcb.setPassword(password);
+            } else {
+                throw new UnsupportedCallbackException(current);
+            }
+        }
+    }
+
+    private void prompt(final String realm) {
+        if (promptShown == false) {
+            promptShown = true;
+            System.out.println("Authenticating against security realm: " + realm);
+        }
+    }
+
+    private String obtainUsername(final String prompt) {
+        if (username == null) {
+            username = System.console().readLine(prompt);
+        }
+        return username;
+    }
+
+    private char[] obtainPassword(final String prompt) {
+        if (password == null) {
+            password = System.console().readPassword(prompt);
+        }
+
+        return password;
+    }
+
+}