From 34048361dccdd9dd73390a4ed49dc55a1f63a8ab Mon Sep 17 00:00:00 2001
From: Gaston Dombiak <gaston@jivesoftware.com>
Date: Sat, 27 Aug 2005 00:04:58 +0000
Subject: [PATCH] Initial version. SMACK-24

git-svn-id: http://svn.igniterealtime.org/svn/repos/smack/trunk@2727 b35dd754-fafc-0310-a699-88a17e54d16e
---
 .../smack/NonSASLAuthentication.java          | 101 ++++++++++++++++++
 .../smack/UserAuthentication.java             |  34 ++++++
 2 files changed, 135 insertions(+)
 create mode 100644 source/org/jivesoftware/smack/NonSASLAuthentication.java
 create mode 100644 source/org/jivesoftware/smack/UserAuthentication.java

diff --git a/source/org/jivesoftware/smack/NonSASLAuthentication.java b/source/org/jivesoftware/smack/NonSASLAuthentication.java
new file mode 100644
index 000000000..0cb4af597
--- /dev/null
+++ b/source/org/jivesoftware/smack/NonSASLAuthentication.java
@@ -0,0 +1,101 @@
+/**
+ * $RCSfile$
+ * $Revision: $
+ * $Date: $
+ *
+ * Copyright 2003-2004 Jive Software.
+ *
+ * All rights reserved. Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.jivesoftware.smack;
+
+import org.jivesoftware.smack.filter.PacketIDFilter;
+import org.jivesoftware.smack.packet.Authentication;
+import org.jivesoftware.smack.packet.IQ;
+
+/**
+ * Implementation of JEP-0078: Non-SASL Authentication. Follow the following
+ * <a href=http://www.jabber.org/jeps/jep-0078.html>link</a> to obtain more
+ * information about the JEP.
+ *
+ * @author Gaston Dombiak
+ */
+class NonSASLAuthentication implements UserAuthentication {
+
+    private XMPPConnection connection;
+
+    public NonSASLAuthentication(XMPPConnection connection) {
+        super();
+        this.connection = connection;
+    }
+
+    public String authenticate(String username, String password, String resource) throws
+            XMPPException {
+        // If we send an authentication packet in "get" mode with just the username,
+        // the server will return the list of authentication protocols it supports.
+        Authentication discoveryAuth = new Authentication();
+        discoveryAuth.setType(IQ.Type.GET);
+        discoveryAuth.setUsername(username);
+
+        PacketCollector collector =
+            connection.createPacketCollector(new PacketIDFilter(discoveryAuth.getPacketID()));
+        // Send the packet
+        connection.sendPacket(discoveryAuth);
+        // Wait up to a certain number of seconds for a response from the server.
+        IQ response = (IQ) collector.nextResult(SmackConfiguration.getPacketReplyTimeout());
+        if (response == null) {
+            throw new XMPPException("No response from the server.");
+        }
+        // If the server replied with an error, throw an exception.
+        else if (response.getType() == IQ.Type.ERROR) {
+            throw new XMPPException(response.getError());
+        }
+        // Otherwise, no error so continue processing.
+        Authentication authTypes = (Authentication) response;
+        collector.cancel();
+
+        // Now, create the authentication packet we'll send to the server.
+        Authentication auth = new Authentication();
+        auth.setUsername(username);
+
+        // Figure out if we should use digest or plain text authentication.
+        if (authTypes.getDigest() != null) {
+            auth.setDigest(connection.getConnectionID(), password);
+        }
+        else if (authTypes.getPassword() != null) {
+            auth.setPassword(password);
+        }
+        else {
+            throw new XMPPException("Server does not support compatible authentication mechanism.");
+        }
+
+        auth.setResource(resource);
+
+        collector = connection.createPacketCollector(new PacketIDFilter(auth.getPacketID()));
+        // Send the packet.
+        connection.sendPacket(auth);
+        // Wait up to a certain number of seconds for a response from the server.
+        response = (IQ) collector.nextResult(SmackConfiguration.getPacketReplyTimeout());
+        if (response == null) {
+            throw new XMPPException("Authentication failed.");
+        }
+        else if (response.getType() == IQ.Type.ERROR) {
+            throw new XMPPException(response.getError());
+        }
+        // We're done with the collector, so explicitly cancel it.
+        collector.cancel();
+
+        return response.getTo();
+    }
+}
diff --git a/source/org/jivesoftware/smack/UserAuthentication.java b/source/org/jivesoftware/smack/UserAuthentication.java
new file mode 100644
index 000000000..a50066cc7
--- /dev/null
+++ b/source/org/jivesoftware/smack/UserAuthentication.java
@@ -0,0 +1,34 @@
+/**
+ * $RCSfile$
+ * $Revision: $
+ * $Date: $
+ *
+ * Copyright 2003-2004 Jive Software.
+ *
+ * All rights reserved. Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.jivesoftware.smack;
+
+/**
+ * There are two ways to authenticate a user with a server. Using SASL or Non-SASL
+ * authentication. This interface makes {@link SASLAuthentication} and
+ * {@link NonSASLAuthentication} polyphormic.
+ *
+ * @author Gaston Dombiak
+ */
+interface UserAuthentication {
+
+    String authenticate(String username, String password, String resource) throws
+            XMPPException;
+}