Creating a branch for experimenting with some ideas for JMS client.rajith_jms_client

git-svn-id: https://svn.apache.org/repos/asf/qpid/branches/rajith_jms_client@1128369 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 184 insertions, 0 deletions

diff --git a/qpid/java/broker/src/main/java/org/apache/qpid/server/security/auth/manager/PrincipalDatabaseAuthenticationManager.java b/qpid/java/broker/src/main/java/org/apache/qpid/server/security/auth/manager/PrincipalDatabaseAuthenticationManager.java
new file mode 100644
index 0000000000..d10ad2c170
--- /dev/null
+++ b/qpid/java/broker/src/main/java/org/apache/qpid/server/security/auth/manager/PrincipalDatabaseAuthenticationManager.java
@@ -0,0 +1,184 @@
+/*
+ *  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.server.security.auth.manager;
+
+import org.apache.log4j.Logger;
+import org.apache.qpid.server.registry.ApplicationRegistry;
+import org.apache.qpid.server.security.auth.manager.AuthenticationManager;
+import org.apache.qpid.server.security.auth.database.PrincipalDatabase;
+import org.apache.qpid.server.security.auth.sasl.JCAProvider;
+import org.apache.qpid.server.security.auth.sasl.AuthenticationProviderInitialiser;
+import org.apache.qpid.server.security.auth.AuthenticationResult;
+
+import javax.security.auth.callback.CallbackHandler;
+import javax.security.sasl.SaslServerFactory;
+import javax.security.sasl.SaslServer;
+import javax.security.sasl.SaslException;
+import javax.security.sasl.Sasl;
+import java.util.Map;
+import java.util.HashMap;
+import java.util.TreeMap;
+import java.security.Security;
+
+/**
+ * Concrete implementation of the AuthenticationManager that determines if supplied
+ * user credentials match those appearing in a PrincipalDatabase.
+ *
+ */
+public class PrincipalDatabaseAuthenticationManager implements AuthenticationManager
+{
+    private static final Logger _logger = Logger.getLogger(PrincipalDatabaseAuthenticationManager.class);
+
+    /** The list of mechanisms, in the order in which they are configured (i.e. preferred order) */
+    private String _mechanisms;
+
+    /** Maps from the mechanism to the callback handler to use for handling those requests */
+    private Map<String, CallbackHandler> _callbackHandlerMap = new HashMap<String, CallbackHandler>();
+
+    /**
+     * Maps from the mechanism to the properties used to initialise the server. See the method Sasl.createSaslServer for
+     * details of the use of these properties. This map is populated during initialisation of each provider.
+     */
+    private Map<String, Map<String, ?>> _serverCreationProperties = new HashMap<String, Map<String, ?>>();
+
+    /** The name for the required SASL Server mechanisms */
+    public static final String PROVIDER_NAME= "AMQSASLProvider-Server";
+
+    public PrincipalDatabaseAuthenticationManager()  
+    {
+        _logger.info("Initialising  PrincipalDatabase authentication manager.");
+
+        Map<String, Class<? extends SaslServerFactory>> providerMap = new TreeMap<String, Class<? extends SaslServerFactory>>();
+
+
+        initialiseAuthenticationMechanisms(providerMap, ApplicationRegistry.getInstance().getDatabaseManager().getDatabases());
+
+        if (providerMap.size() > 0)
+        {
+            // Ensure we are used before the defaults
+            if (Security.insertProviderAt(new JCAProvider(PROVIDER_NAME, providerMap), 1) == -1)
+            {
+                _logger.error("Unable to load custom SASL providers. Qpid custom SASL authenticators unavailable.");
+            }
+            else
+            {
+                _logger.info("Additional SASL providers successfully registered.");
+            }
+
+        }
+        else
+        {
+            _logger.warn("No additional SASL providers registered.");
+        }
+    }
+
+    private void initialiseAuthenticationMechanisms(Map<String, Class<? extends SaslServerFactory>> providerMap, Map<String, PrincipalDatabase> databases) 
+    {
+        if (databases.size() > 1)
+        {
+            _logger.warn("More than one principle database provided currently authentication mechanism will override each other.");
+        }
+
+        for (Map.Entry<String, PrincipalDatabase> entry : databases.entrySet())
+        {
+            // fixme As the database now provide the mechanisms they support, they will ...
+            // overwrite each other in the map. There should only be one database per vhost.
+            // But currently we must have authentication before vhost definition.
+            initialiseAuthenticationMechanisms(providerMap, entry.getValue());
+        }
+    }
+
+    private void initialiseAuthenticationMechanisms(Map<String, Class<? extends SaslServerFactory>> providerMap, PrincipalDatabase database) 
+    {
+        if (database == null || database.getMechanisms().size() == 0)
+        {
+            _logger.warn("No Database or no mechanisms to initialise authentication");
+            return;
+        }
+
+        for (Map.Entry<String, AuthenticationProviderInitialiser> mechanism : database.getMechanisms().entrySet())
+        {
+            initialiseAuthenticationMechanism(mechanism.getKey(), mechanism.getValue(), providerMap);
+        }
+    }
+
+    private void initialiseAuthenticationMechanism(String mechanism, AuthenticationProviderInitialiser initialiser,
+                                                   Map<String, Class<? extends SaslServerFactory>> providerMap)
+            
+    {
+        if (_mechanisms == null)
+        {
+            _mechanisms = mechanism;
+        }
+        else
+        {
+            // simple append should be fine since the number of mechanisms is small and this is a one time initialisation
+            _mechanisms = _mechanisms + " " + mechanism;
+        }
+        _callbackHandlerMap.put(mechanism, initialiser.getCallbackHandler());
+        _serverCreationProperties.put(mechanism, initialiser.getProperties());
+        Class<? extends SaslServerFactory> factory = initialiser.getServerFactoryClassForJCARegistration();
+        if (factory != null)
+        {
+            providerMap.put(mechanism, factory);
+        }
+        _logger.info("Initialised " + mechanism + " SASL provider successfully");
+    }
+
+    public String getMechanisms()
+    {
+        return _mechanisms;
+    }
+
+    public SaslServer createSaslServer(String mechanism, String localFQDN) throws SaslException
+    {
+        return Sasl.createSaslServer(mechanism, "AMQP", localFQDN, _serverCreationProperties.get(mechanism),
+                                     _callbackHandlerMap.get(mechanism));
+    }
+
+    public AuthenticationResult authenticate(SaslServer server, byte[] response)
+    {
+        try
+        {
+            // Process response from the client
+            byte[] challenge = server.evaluateResponse(response != null ? response : new byte[0]);
+
+            if (server.isComplete())
+            {
+                return new AuthenticationResult(challenge, AuthenticationResult.AuthenticationStatus.SUCCESS);
+            }
+            else
+            {
+                return new AuthenticationResult(challenge, AuthenticationResult.AuthenticationStatus.CONTINUE);
+            }
+        }
+        catch (SaslException e)
+        {
+            return new AuthenticationResult(AuthenticationResult.AuthenticationStatus.ERROR, e);
+        }
+    }
+
+    public void close()
+    {
+        _mechanisms = null;
+        Security.removeProvider(PROVIDER_NAME);
+    }
+}