/*

 * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

/**

 * @test

 * @bug 8004476

 * @summary test XSLT extension functions

 * @run main/othervm XSLTExFuncTest

 */

import java.io.StringWriter;

import java.security.AllPermission;

import java.security.CodeSource;

import java.security.Permission;

import java.security.PermissionCollection;

import java.security.Permissions;

import java.security.Policy;

import java.security.ProtectionDomain;

import javax.xml.transform.*;

import javax.xml.transform.sax.SAXSource;

import javax.xml.transform.stream.StreamResult;

import org.xml.sax.InputSource;

/**

 * test XSLT extension functions

 *

 * @author huizhe.wang@oracle.com

 */

public class XSLTExFuncTest extends TestBase {

    final static String ENABLE_EXTENSION_FUNCTIONS = "http://www.oracle.com/xml/jaxp/properties/enableExtensionFunctions";

    final static String CLASSNAME = "DocumentBuilderFactoryImpl";

    /**

     * Creates a new instance of StreamReader

     */

    public XSLTExFuncTest(String name) {

        super(name);

    }

    boolean hasSM;

    String xslFile, xslFileId;

    String xmlFile, xmlFileId;

    protected void setUp() {

        super.setUp();

        xmlFile = filepath + "/tokenize.xml";

        xslFile = filepath + "/tokenize.xsl";

        /**

         * On Windows platform it needs triple '/' for valid URL while double '/' is enough on Linux or Solaris.

         * Here use file:/// directly to make it work on Windows and it will not impact other platforms.

         */

        xslFileId = "file:///" + xslFile;

    }

    /**

     * @param args the command line arguments

     */

    public static void main(String[] args) {

        XSLTExFuncTest test = new XSLTExFuncTest("OneTest");

        test.setUp();

        test.testExtFunc();

        test.testExtFuncNotAllowed();

        test.testEnableExtFunc();

        test.testTemplatesEnableExtFunc();

        test.tearDown();

    }

    /**

     * by default, extension function is enabled

     */

    public void testExtFunc() {

        TransformerFactory factory = TransformerFactory.newInstance();

        try {

            transform(factory);

            System.out.println("testExtFunc: OK");

        } catch (TransformerConfigurationException e) {

            fail(e.getMessage());

        } catch (TransformerException ex) {

            fail(ex.getMessage());

        }

    }

    /**

     * Security is enabled, extension function not allowed

     */

    public void testExtFuncNotAllowed() {

        Policy p = new SimplePolicy(new AllPermission());

        Policy.setPolicy(p);

        System.setSecurityManager(new SecurityManager());

        TransformerFactory factory = TransformerFactory.newInstance();

        try {

            transform(factory);

        } catch (TransformerConfigurationException e) {

            fail(e.getMessage());

        } catch (TransformerException ex) {

            //expected since extension function is disallowed

            System.out.println("testExtFuncNotAllowed: OK");

        } finally {

            System.setSecurityManager(null);

        }

    }

    /**

     * Security is enabled, use new feature: enableExtensionFunctions

     */

    public void testEnableExtFunc() {

        Policy p = new SimplePolicy(new AllPermission());

        Policy.setPolicy(p);

        System.setSecurityManager(new SecurityManager());

        TransformerFactory factory = TransformerFactory.newInstance();

        /**

         * Use of the extension function 'http://exslt.org/strings:tokenize' is

         * not allowed when the secure processing feature is set to true.

         * Attempt to use the new property to enable extension function

         */

        boolean isExtensionSupported = enableExtensionFunction(factory);

        try {

            transform(factory);

            System.out.println("testEnableExt: OK");

        } catch (TransformerConfigurationException e) {

            fail(e.getMessage());

        } catch (TransformerException e) {

            fail(e.getMessage());

        } finally {

            System.setSecurityManager(null);

        }

    }

    /**

     * use Templates template = factory.newTemplates(new StreamSource( new

     * FileInputStream(xslFilename))); // Use the template to create a

     * transformer Transformer xformer = template.newTransformer();

     *

     * @param factory

     * @return

     */

    /**

     * Security is enabled, use new feature: enableExtensionFunctions Use the

     * template to create a transformer

     */

    public void testTemplatesEnableExtFunc() {

        Policy p = new SimplePolicy(new AllPermission());

        Policy.setPolicy(p);

        System.setSecurityManager(new SecurityManager());

        TransformerFactory factory = TransformerFactory.newInstance();

        /**

         * Use of the extension function 'http://exslt.org/strings:tokenize' is

         * not allowed when the secure processing feature is set to true.

         * Attempt to use the new property to enable extension function

         */

        boolean isExtensionSupported = enableExtensionFunction(factory);

        try {

            SAXSource xslSource = new SAXSource(new InputSource(xslFile));

            xslSource.setSystemId(xslFileId);

            Templates template = factory.newTemplates(xslSource);

            Transformer transformer = template.newTransformer();

            StringWriter stringResult = new StringWriter();

            Result result = new StreamResult(stringResult);

            transformer.transform(new SAXSource(new InputSource(xmlFile)), result);

            System.out.println("testTemplatesEnableExtFunc: OK");

        } catch (TransformerConfigurationException e) {

            fail(e.getMessage());

        } catch (TransformerException e) {

            fail(e.getMessage());

        } finally {

            System.setSecurityManager(null);

        }

    }

    boolean enableExtensionFunction(TransformerFactory factory) {

        boolean isSupported = true;

        try {

            factory.setFeature(ENABLE_EXTENSION_FUNCTIONS, true);

        } catch (TransformerConfigurationException ex) {

            isSupported = false;

        }

        return isSupported;

    }

    void transform(TransformerFactory factory) throws TransformerConfigurationException, TransformerException {

        SAXSource xslSource = new SAXSource(new InputSource(xslFile));

        xslSource.setSystemId(xslFileId);

        Transformer transformer = factory.newTransformer(xslSource);

        StringWriter stringResult = new StringWriter();

        Result result = new StreamResult(stringResult);

        transformer.transform(new SAXSource(new InputSource(xmlFile)), result);

    }

    class SimplePolicy extends Policy {

        private final Permissions perms;

        public SimplePolicy(Permission... permissions) {

            perms = new Permissions();

            for (Permission permission : permissions) {

                perms.add(permission);

            }

        }

        @Override

        public PermissionCollection getPermissions(CodeSource cs) {

            return perms;

        }

        @Override

        public PermissionCollection getPermissions(ProtectionDomain pd) {

            return perms;

        }

        @Override

        public boolean implies(ProtectionDomain pd, Permission p) {

            return perms.implies(p);

        }

        //for older jdk

        @Override

        public void refresh() {

        }

    }

}