1 files changed, 122 insertions, 0 deletions
diff --git a/java/broker-plugins/access-control/src/main/java/org/apache/qpid/server/security/access/plugins/DefaultAccessControl.java b/java/broker-plugins/access-control/src/main/java/org/apache/qpid/server/security/access/plugins/DefaultAccessControl.java
new file mode 100644
index 0000000000..6f7885da94
--- /dev/null
+++ b/java/broker-plugins/access-control/src/main/java/org/apache/qpid/server/security/access/plugins/DefaultAccessControl.java
@@ -0,0 +1,122 @@
+/*
+ *
+ * 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.access.plugins;
+
+import java.net.InetAddress;
+import java.net.InetSocketAddress;
+import java.io.File;
+
+import javax.security.auth.Subject;
+
+import org.apache.commons.configuration.ConfigurationException;
+import org.apache.commons.lang.ObjectUtils;
+import org.apache.log4j.Logger;
+import org.apache.qpid.server.security.Result;
+import org.apache.qpid.server.security.SecurityManager;
+import org.apache.qpid.server.security.AccessControl;
+import org.apache.qpid.server.security.access.ObjectProperties;
+import org.apache.qpid.server.security.access.ObjectType;
+import org.apache.qpid.server.security.access.Operation;
+import org.apache.qpid.server.security.access.config.ConfigurationFile;
+import org.apache.qpid.server.security.access.config.PlainConfiguration;
+import org.apache.qpid.server.security.access.config.RuleSet;
+
+public class DefaultAccessControl implements AccessControl
+{
+    private static final Logger _logger = Logger.getLogger(DefaultAccessControl.class);
+
+    private RuleSet _ruleSet;
+
+    public DefaultAccessControl(String fileName)
+    {
+        if (_logger.isDebugEnabled())
+        {
+            _logger.debug("Creating AccessControl instance using file: " + fileName);
+        }
+        File aclFile = new File(fileName);
+
+        ConfigurationFile configFile = new PlainConfiguration(aclFile);
+        _ruleSet = configFile.load();
+    }
+
+    DefaultAccessControl(RuleSet rs) throws ConfigurationException
+    {
+        _ruleSet = rs;
+    }
+
+    public Result getDefault()
+    {
+        return _ruleSet.getDefault();
+    }
+
+    /**
+     * Object instance access authorisation.
+     *
+	 * Delegate to the {@link #authorise(Operation, ObjectType, ObjectProperties)} method, with
+     * the operation set to ACCESS and no object properties.
+	 */
+    public Result access(ObjectType objectType, Object inetSocketAddress)
+    {
+        InetAddress addressOfClient = null;
+
+        if(inetSocketAddress != null)
+        {
+            addressOfClient = ((InetSocketAddress) inetSocketAddress).getAddress();
+        }
+
+        return authoriseFromAddress(Operation.ACCESS, objectType, ObjectProperties.EMPTY, addressOfClient);
+    }
+
+    /**
+     * Check if an operation is authorised by asking the  configuration object about the access
+     * control rules granted to the current thread's {@link Subject}. If there is no current
+     * user the plugin will abstain.
+     */
+    public Result authorise(Operation operation, ObjectType objectType, ObjectProperties properties)
+    {
+        return authoriseFromAddress(operation, objectType, properties, null);
+    }
+
+    public Result authoriseFromAddress(Operation operation, ObjectType objectType, ObjectProperties properties, InetAddress addressOfClient)
+    {
+        final Subject subject = SecurityManager.getThreadSubject();
+        // Abstain if there is no subject/principal associated with this thread
+        if (subject == null  || subject.getPrincipals().size() == 0)
+        {
+            return Result.ABSTAIN;
+        }
+
+        if(_logger.isDebugEnabled())
+        {
+            _logger.debug("Checking " + operation + " " + objectType + " " + ObjectUtils.defaultIfNull(addressOfClient, ""));
+        }
+
+        try
+        {
+            return  _ruleSet.check(subject, operation, objectType, properties, addressOfClient);
+        }
+        catch(Exception e)
+        {
+            _logger.error("Unable to check " + operation + " " + objectType + " " + ObjectUtils.defaultIfNull(addressOfClient, ""), e);
+            return Result.DENIED;
+        }
+    }
+}