/*
 *  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.directory.server.core.jndi;


import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNotNull;
import static org.junit.jupiter.api.Assertions.assertTrue;
import static org.junit.jupiter.api.Assertions.fail;

import java.util.Hashtable;

import javax.naming.InitialContext;
import javax.naming.NamingException;
import javax.naming.NoPermissionException;
import javax.naming.directory.Attributes;
import javax.naming.directory.DirContext;
import javax.naming.directory.ModificationItem;

import org.apache.directory.server.core.annotations.CreateDS;
import org.apache.directory.server.core.integ.AbstractLdapTestUnit;
import org.apache.directory.server.core.integ.ApacheDSTestExtension;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.ExtendWith;


/**
 * Testing RootDSE lookups and context creation using the empty string.
 *
 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
 */
@ExtendWith( ApacheDSTestExtension.class )
@CreateDS(name = "RootDSEIT")
public class RootDSEJndiIT extends AbstractLdapTestUnit
{

    /**
     * Creates an initial context using the empty string for the provider URL.
     * This should work.
     *
     * @throws NamingException if there are any problems
     */
    @Test
    public void testGetInitialContext() throws NamingException
    {
        Hashtable<String, Object> env = setDefaultJNDIEnv( CoreContextFactory.class.getName() );

        InitialContext initCtx = new InitialContext( env );
        assertNotNull( initCtx );
    }


    /**
     * Gets a DirContext from the InitialContext for the empty string or RootDSE
     * and checks that none of the operational attributes are returned.
     *
     * @throws NamingException if there are any problems
     */
    @Test
    public void testGetInitialContextLookupAttributes() throws NamingException
    {
        Hashtable<String, Object> env = setDefaultJNDIEnv( CoreContextFactory.class.getName() );

        InitialContext initCtx = new InitialContext( env );
        assertNotNull( initCtx );

        DirContext ctx = ( DirContext ) initCtx.lookup( "" );
        Attributes attributes = ctx.getAttributes( "" );

        // Added some objectClass attributes to the rootDSE
        assertEquals( 1, attributes.size() );
    }


    /**
     * Checks for namingContexts and vendorName attributes.
     *
     * @throws NamingException if there are any problems
     */
    @Test
    public void testGetInitialContextLookupAttributesByName() throws NamingException
    {
        Hashtable<String, Object> env = setDefaultJNDIEnv( CoreContextFactory.class.getName() );

        InitialContext initCtx = new InitialContext( env );
        assertNotNull( initCtx );
        DirContext ctx = ( DirContext ) initCtx.lookup( "" );

        Attributes attributes = ctx.getAttributes( "", new String[]
            { "namingContexts", "VENDORNAME" } );
        assertEquals( 2, attributes.size() );
        assertEquals( "Apache Software Foundation", attributes.get( "vendorName" ).get() );
        assertTrue( attributes.get( "namingContexts" ).contains( "ou=system" ) );
    }


    /**
     * Checks for ObjectClass, namingContexts and vendorName attributes.
     *
     * @throws NamingException if there are any problems
     */
    @Test
    public void testGetInitialContextLookupAttributesByNameWithOC() throws NamingException
    {
        Hashtable<String, Object> env = setDefaultJNDIEnv( CoreContextFactory.class.getName() );

        InitialContext initCtx = new InitialContext( env );
        assertNotNull( initCtx );
        DirContext ctx = ( DirContext ) initCtx.lookup( "" );

        Attributes attributes = ctx.getAttributes( "", new String[]
            { "ObjectClass", "namingContexts", "VENDORNAME" } );
        assertEquals( 3, attributes.size() );
        assertEquals( "Apache Software Foundation", attributes.get( "vendorName" ).get() );
        assertTrue( attributes.get( "namingContexts" ).contains( "ou=system" ) );
    }


    /**
     * Checks for lack of permissions to delete this entry.
     *
     * @throws NamingException if there are any problems
     */
    @Test
    public void testDelete() throws NamingException
    {
        Hashtable<String, Object> env = setDefaultJNDIEnv( CoreContextFactory.class.getName() );

        InitialContext initCtx = new InitialContext( env );
        assertNotNull( initCtx );
        DirContext ctx = ( DirContext ) initCtx.lookup( "" );
        NoPermissionException notNull = null;

        try
        {
            ctx.destroySubcontext( "" );
            fail( "we should never get here" );
        }
        catch ( NoPermissionException e )
        {
            notNull = e;
        }

        assertNotNull( notNull );
    }


    /**
     * Checks for lack of permissions to rename or move this entry.
     *
     * @throws NamingException if there are any problems
     */
    @Test
    public void testRename() throws NamingException
    {
        Hashtable<String, Object> env = setDefaultJNDIEnv( CoreContextFactory.class.getName() );

        InitialContext initCtx = new InitialContext( env );
        assertNotNull( initCtx );
        DirContext ctx = ( DirContext ) initCtx.lookup( "" );
        NoPermissionException notNull = null;

        try
        {
            ctx.rename( "", "ou=system" );
            fail( "we should never get here" );
        }
        catch ( NoPermissionException e )
        {
            notNull = e;
        }

        assertNotNull( notNull );
    }


    /**
     * Checks for lack of permissions to modify this entry.
     *
     * @throws NamingException if there are any problems
     */
    @Test
    public void testModify() throws NamingException
    {
        Hashtable<String, Object> env = setDefaultJNDIEnv( CoreContextFactory.class.getName() );

        InitialContext initCtx = new InitialContext( env );
        assertNotNull( initCtx );
        DirContext ctx = ( DirContext ) initCtx.lookup( "" );
        NoPermissionException notNull = null;

        try
        {
            ctx.modifyAttributes( "", DirContext.ADD_ATTRIBUTE, null );
            fail( "we should never get here" );
        }
        catch ( NoPermissionException e )
        {
            notNull = e;
        }

        assertNotNull( notNull );
    }


    /**
     * Checks for lack of permissions to modify this entry.
     *
     * @throws NamingException if there are any problems
     */
    @Test
    public void testModify2() throws NamingException
    {
        Hashtable<String, Object> env = setDefaultJNDIEnv( CoreContextFactory.class.getName() );

        InitialContext initCtx = new InitialContext( env );

        assertNotNull( initCtx );

        DirContext ctx = ( DirContext ) initCtx.lookup( "" );

        NoPermissionException notNull = null;

        try
        {
            ctx.modifyAttributes( "", new ModificationItem[]
                {} );

            fail( "we should never get here" );
        }
        catch ( NoPermissionException e )
        {
            notNull = e;
        }

        assertNotNull( notNull );
    }
}
