Authenticate user AdHoc command

git-svn-id: http://svn.igniterealtime.org/svn/repos/wildfire/trunk@6153 b35dd754-fafc-0310-a699-88a17e54d16e

src/java/org/jivesoftware/wildfire/commands/admin/AuthenticateUser.java

+/**
+ * $RCSfile:  $
+ * $Revision:  $
+ * $Date:  $
+ *
+ * Copyright (C) 2006 Jive Software. All rights reserved.
+ * This software is the proprietary information of Jive Software. Use is subject to license terms.
+ */
+package org.jivesoftware.wildfire.commands.admin;
+
+import org.jivesoftware.wildfire.commands.AdHocCommand;
+import org.jivesoftware.wildfire.commands.SessionData;
+import org.jivesoftware.wildfire.user.UserManager;
+import org.jivesoftware.wildfire.user.User;
+import org.jivesoftware.wildfire.user.UserNotFoundException;
+import org.jivesoftware.wildfire.auth.AuthFactory;
+import org.jivesoftware.wildfire.auth.UnauthorizedException;
+import org.dom4j.Element;
+import org.xmpp.forms.DataForm;
+import org.xmpp.forms.FormField;
+
+import java.util.List;
+import java.util.Arrays;
+
+/**
+ * Takes a user's username and password to authenticate them against the Wildfire authprovider.
+ *
+ * @author Alexander Wenckus
+ */
+public class AuthenticateUser extends AdHocCommand {
+    public String getCode() {
+        return "http://jabber.org/protocol/admin#authenticate-user";
+    }
+
+    public String getDefaultLabel() {
+        return "Authenticate User";
+    }
+
+    public int getMaxStages(SessionData data) {
+        return 1;
+    }
+
+    public void execute(SessionData data, Element command) {
+        Element note = command.addElement("note");
+        // Check if groups cannot be modified (backend is read-only)
+        if (UserManager.getUserProvider().isReadOnly()) {
+            note.addAttribute("type", "error");
+            note.setText("Users are read only. Changing password is not allowed.");
+            return;
+        }
+        String account = data.getData().get("username").get(0);
+        String password = data.getData().get("password").get(0);
+        // Get requested user
+        User user;
+        try {
+            user = UserManager.getInstance().getUser(account);
+        }
+        catch (UserNotFoundException e) {
+            // User not found
+            note.addAttribute("type", "error");
+            note.setText("User does not exists.");
+            return;
+        }
+
+        try {
+            AuthFactory.getAuthProvider().authenticate(user.getUsername(), password);
+        }
+        catch (UnauthorizedException e) {
+            // Auth failed
+            note.addAttribute("type", "error");
+            note.setText("Authentication failed.");
+            return;
+        }
+        // Answer that the operation was successful
+        note.addAttribute("type", "info");
+        note.setText("Operation finished successfully.");
+    }
+
+    protected void addStageInformation(SessionData data, Element command) {
+        DataForm form = new DataForm(DataForm.Type.form);
+        form.setTitle("Authenticating a user");
+        form.addInstruction("Fill out this form to authenticate a user.");
+
+        FormField field = form.addField();
+        field.setType(FormField.Type.hidden);
+        field.setVariable("FORM_TYPE");
+        field.addValue("http://jabber.org/protocol/admin");
+
+        field = form.addField();
+        field.setType(FormField.Type.text_single);
+        field.setLabel("The username for this account");
+        field.setVariable("username");
+        field.setRequired(true);
+
+        field = form.addField();
+        field.setType(FormField.Type.text_private);
+        field.setLabel("The password for this account");
+        field.setVariable("password");
+        field.setRequired(true);
+
+        // Add the form to the command
+        command.add(form.getElement());
+    }
+
+    protected List<Action> getActions(SessionData data) {
+        return Arrays.asList(AdHocCommand.Action.complete);
+    }
+
+    protected Action getExecuteAction(SessionData data) {
+        return AdHocCommand.Action.complete;
+    }
+}