1 files changed, 102 insertions, 0 deletions
diff --git a/qpid/java/client/src/main/java/org/apache/qpid/client/security/UsernameHashedPasswordCallbackHandler.java b/qpid/java/client/src/main/java/org/apache/qpid/client/security/UsernameHashedPasswordCallbackHandler.java
new file mode 100644
index 0000000000..6ec83f0a23
--- /dev/null
+++ b/qpid/java/client/src/main/java/org/apache/qpid/client/security/UsernameHashedPasswordCallbackHandler.java
@@ -0,0 +1,102 @@
+/*
+ *
+ * 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.
+ *
+ */
+package org.apache.qpid.client.security;
+
+import java.io.IOException;
+import java.io.UnsupportedEncodingException;
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+
+import javax.security.auth.callback.Callback;
+import javax.security.auth.callback.NameCallback;
+import javax.security.auth.callback.PasswordCallback;
+import javax.security.auth.callback.UnsupportedCallbackException;
+
+import org.apache.qpid.jms.ConnectionURL;
+
+public class UsernameHashedPasswordCallbackHandler implements AMQCallbackHandler
+{
+    private ConnectionURL _connectionURL;
+
+    /**
+     * @see org.apache.qpid.client.security.AMQCallbackHandler#initialise(org.apache.qpid.jms.ConnectionURL)
+     */
+    @Override
+    public void initialise(ConnectionURL connectionURL)
+    {
+        _connectionURL = connectionURL;
+    }
+
+    public void handle(Callback[] callbacks) throws IOException, UnsupportedCallbackException
+    {
+        for (int i = 0; i < callbacks.length; i++)
+        {
+            Callback cb = callbacks[i];
+            if (cb instanceof NameCallback)
+            {
+                ((NameCallback) cb).setName(_connectionURL.getUsername());
+            }
+            else if (cb instanceof PasswordCallback)
+            {
+                try
+                {
+                    ((PasswordCallback) cb).setPassword(getHash(_connectionURL.getPassword()));
+                }
+                catch (NoSuchAlgorithmException e)
+                {
+                    UnsupportedCallbackException uce = new UnsupportedCallbackException(cb);
+                    uce.initCause(e);
+                    throw uce;
+                }
+            }
+            else
+            {
+                throw new UnsupportedCallbackException(cb);
+            }
+        }
+    }
+
+    private char[] getHash(String text) throws NoSuchAlgorithmException, UnsupportedEncodingException
+    {
+
+        byte[] data = text.getBytes("utf-8");
+
+        MessageDigest md = MessageDigest.getInstance("MD5");
+
+        for (byte b : data)
+        {
+            md.update(b);
+        }
+
+        byte[] digest = md.digest();
+
+        char[] hash = new char[digest.length];
+
+        int index = 0;
+        for (byte b : digest)
+        {
+            hash[index++] = (char) b;
+        }
+
+        return hash;
+    }
+
+}