Add SASL PLAIN implementation to smack-sasl-provided

smack-sasl-provided/src/main/java/org/jivesoftware/smack/sasl/provided/SASLPlainMechanism.java

@@ -0,0 +1,57 @@
+/**
+ *
+ * Copyright 2014 Florian Schmaus
+ *
+ * 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.sasl.provided;
+
+import javax.security.auth.callback.CallbackHandler;
+
+import org.jivesoftware.smack.SmackException;
+import org.jivesoftware.smack.sasl.SASLMechanism;
+import org.jivesoftware.smack.util.ByteUtils;
+
+public class SASLPlainMechanism extends SASLMechanism {
+
+    public static final String NAME = PLAIN;
+
+    @Override
+    protected void authenticateInternal(CallbackHandler cbh) throws SmackException {
+        throw new UnsupportedOperationException("CallbackHandler not (yet) supported");
+    }
+
+    @Override
+    protected byte[] getAuthenticationText() throws SmackException {
+        // concatenate and encode username (authcid) and password
+        byte[] authcid = toBytes('\u0000' + authenticationId);
+        byte[] passw = toBytes('\u0000' + password);
+
+        return ByteUtils.concact(authcid, passw);
+    }
+
+    @Override
+    public String getName() {
+        return NAME;
+    }
+
+    @Override
+    public int getPriority() {
+        return 410;
+    }
+
+    @Override
+    public SASLPlainMechanism newInstance() {
+        return new SASLPlainMechanism();
+    }
+}

smack-sasl-provided/src/main/java/org/jivesoftware/smack/sasl/provided/SASLProvidedSmackInitializer.java

@@ -27,6 +27,7 @@ public class SASLProvidedSmackInitializer extends SmackAndOsgiInitializer {
 	public List<Exception> initialize() {
 		SASLAuthentication.registerSASLMechanism(new SASLDigestMD5Mechanism());
 		SASLAuthentication.registerSASLMechanism(new SASLExternalMechanism());
+		SASLAuthentication.registerSASLMechanism(new SASLPlainMechanism());
 		return null;
 	}