1 files changed, 123 insertions, 0 deletions
diff --git a/qpid/java/common/src/main/java/org/apache/qpid/transport/network/security/sasl/SASLSender.java b/qpid/java/common/src/main/java/org/apache/qpid/transport/network/security/sasl/SASLSender.java
new file mode 100644
index 0000000000..27255f79f6
--- /dev/null
+++ b/qpid/java/common/src/main/java/org/apache/qpid/transport/network/security/sasl/SASLSender.java
@@ -0,0 +1,123 @@
+package org.apache.qpid.transport.network.security.sasl;
+/*
+ * 
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.
+ * 
+ */
+
+
+import java.nio.ByteBuffer;
+import java.util.concurrent.atomic.AtomicBoolean;
+
+import javax.security.sasl.SaslClient;
+import javax.security.sasl.SaslException;
+
+import org.apache.qpid.transport.Sender;
+import org.apache.qpid.transport.SenderException;
+import org.apache.qpid.transport.util.Logger;
+
+public class SASLSender extends SASLEncryptor implements Sender<ByteBuffer> {
+
+    protected Sender<ByteBuffer> delegate;
+    private byte[] appData;
+    private final AtomicBoolean closed = new AtomicBoolean(false);
+    private static final Logger log = Logger.get(SASLSender.class);
+    
+    public SASLSender(Sender<ByteBuffer> delegate)
+    {
+        this.delegate = delegate;
+        log.debug("SASL Sender enabled");
+    }
+    
+    @Override
+    public void close() 
+    {
+        
+        if (!closed.getAndSet(true))
+        {
+            delegate.close();
+            if (isSecurityLayerEstablished())
+            {
+                try
+                {
+                    saslClient.dispose();
+                } 
+                catch (SaslException e)
+                {
+                    throw new SenderException("Error closing SASL Sender",e);
+                }
+            }
+        }
+    }
+
+    @Override
+    public void flush() 
+    {
+       delegate.flush();
+    }
+
+    @Override
+    public void send(ByteBuffer buf) 
+    {        
+        if (closed.get())
+        {
+            throw new SenderException("SSL Sender is closed");
+        }
+        
+        if (isSecurityLayerEstablished())
+        {
+            while (buf.hasRemaining())
+            {
+                int length = Math.min(buf.remaining(),sendBuffSize);
+                log.debug("sendBuffSize %s", sendBuffSize);
+                log.debug("buf.remaining() %s", buf.remaining());
+                
+                buf.get(appData, 0, length);
+                try
+                {
+                    byte[] out = saslClient.wrap(appData, 0, length);
+                    log.debug("out.length %s", out.length);
+                    
+                    delegate.send(ByteBuffer.wrap(out));
+                } 
+                catch (SaslException e)
+                {
+                    log.error("Exception while encrypting data.",e);
+                    throw new SenderException("SASL Sender, Error occurred while encrypting data",e);
+                }
+            }            
+        }
+        else
+        {
+            delegate.send(buf);
+        }        
+    }
+
+    @Override
+    public void setIdleTimeout(int i) 
+    {
+        delegate.setIdleTimeout(i);
+    }
+    
+    public void securityLayerEstablished()
+    {
+        appData = new byte[sendBuffSize];
+        log.debug("SASL Security Layer Established");
+    }
+
+}