Initial account manager functionality.

git-svn-id: http://svn.igniterealtime.org/svn/repos/smack/trunk@1846 b35dd754-fafc-0310-a699-88a17e54d16e

source/org/jivesoftware/smack/AccountManager.java

@@ -0,0 +1,109 @@
+package org.jivesoftware.smack;
+
+import org.jivesoftware.smack.packet.Registration;
+import org.jivesoftware.smack.packet.IQ;
+import org.jivesoftware.smack.filter.*;
+
+import java.util.*;
+
+/**
+ * Allows creation and management of accounts on an XMPP server.
+ *
+ * @see XMPPConnection#getAccountManager();
+ * @author Matt Tucker
+ */
+public class AccountManager {
+
+    private XMPPConnection connection;
+    private Registration info = null;
+
+    public AccountManager(XMPPConnection connection) {
+        this.connection = connection;
+    }
+
+    /**
+     * Returns true if the server supports creating new accounts. Many servers require that
+     * you not be currently authenticated when creating new accounts, so the safest
+     * behavior is to only create new accounts when
+     *
+     * @return true if the server support creating new accounts.
+     */
+    public boolean supportsAccountCreation() {
+        try {
+            if (info == null) {
+                getRegistrationInfo();
+            }
+            return info.getType() != IQ.Type.ERROR;
+        }
+        catch (XMPPException xe) {
+            return false;
+        }
+    }
+
+    public Iterator getAccountAttributes() {
+        try {
+            if (info == null) {
+                getRegistrationInfo();
+            }
+            Map attributes = info.getAttributes();
+            if (attributes != null) {
+                return attributes.keySet().iterator();
+            }
+        }
+        catch (XMPPException xe) { }
+        return Collections.EMPTY_LIST.iterator();
+    }
+
+    public void createAccount(String username, String password) throws XMPPException {
+        if (!supportsAccountCreation()) {
+            throw new XMPPException("Server does not support account creation.");
+        }
+    }
+
+    public void createAccount(String username, String password, Map attributes)
+            throws XMPPException
+    {
+
+    }
+
+    public void deleteAccount() throws XMPPException {
+        if (!connection.isAuthenticated()) {
+            throw new IllegalStateException("Must be logged in to delete a account.");
+        }
+        Registration reg = new Registration();
+        reg.setType(IQ.Type.SET);
+        Map attributes = new HashMap();
+        // To delete an account, we add a single attribute, "remove", that is blank.
+        attributes.put("remove", "");
+        reg.setAttributes(attributes);
+        PacketFilter filter = new AndFilter(new PacketIDFilter(reg.getPacketID()),
+                new PacketTypeFilter(Registration.class));
+        PacketCollector collector = connection.createPacketCollector(filter);
+        connection.sendPacket(reg);
+        IQ result = (IQ)collector.nextResult(5000);
+        if (result == null) {
+            throw new XMPPException("No response from server.");
+        }
+        else if (result.getType() == IQ.Type.ERROR) {
+            throw new XMPPException(result.getError());
+        }
+    }
+
+    private synchronized void getRegistrationInfo() throws XMPPException {
+        Registration reg = new Registration();
+        PacketFilter filter = new AndFilter(new PacketIDFilter(reg.getPacketID()),
+                new PacketTypeFilter(IQ.class));
+        PacketCollector collector = connection.createPacketCollector(filter);
+        connection.sendPacket(reg);
+        IQ result = (IQ)collector.nextResult(5000);
+        if (result == null) {
+            throw new XMPPException("No response from server.");
+        }
+        else if (result.getType() == IQ.Type.ERROR) {
+            throw new XMPPException(result.getError());
+        }
+        else {
+            info = (Registration)result;
+        }
+    }
+}