/*

 * Copyright (c) 2012, 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

 * @summary Basic test of storeToXML and loadToXML

 */

import java.io.*;

import java.util.*;

import java.security.*;

public class LoadAndStoreXML {

    /**

     * Simple policy implementation that grants a set of permissions to

     * all code sources and protection domains.

     */

    static 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);

        }

    }

    /**

     * Sanity test that properties saved with Properties#storeToXML can be

     * read with Properties#loadFromXML.

     */

    static void testLoadAndStore(String encoding) throws IOException {

        Properties props = new Properties();

        props.put("k1", "foo");

        props.put("k2", "bar");

        ByteArrayOutputStream out = new ByteArrayOutputStream();

        props.storeToXML(out, null, encoding);

        Properties p = new Properties();

        ByteArrayInputStream in = new ByteArrayInputStream(out.toByteArray());

        p.loadFromXML(in);

        if (!p.equals(props)) {

            System.err.println("stored: " + props);

            System.err.println("loaded: " + p);

            throw new RuntimeException("Test failed");

        }

    }

    /**

     * Test loadFromXML with a document that does not have an encoding declaration

     */

    static void testLoadWithoutEncoding() throws IOException {

        Properties expected = new Properties();

        expected.put("foo", "bar");

        String s = "<?xml version=\"1.0\"?>" +

                   "<!DOCTYPE properties SYSTEM \"http://java.sun.com/dtd/properties.dtd\">" +

                   "<properties>" +

                   "<entry key=\"foo\">bar</entry>" +

                   "</properties>";

        ByteArrayInputStream in = new ByteArrayInputStream(s.getBytes("UTF-8"));

        Properties props = new Properties();

        props.loadFromXML(in);

        if (!props.equals(expected)) {

            System.err.println("loaded: " + props + ", expected: " + expected);

            throw new RuntimeException("Test failed");

        }

    }

        String s = "<?xml version=\"1.0\" encoding=\"BAD\"?>" +

                   "<!DOCTYPE properties SYSTEM \"http://java.sun.com/dtd/properties.dtd\">" +

                   "<properties>" +

                   "<entry key=\"foo\">bar</entry>" +

                   "</properties>";

        ByteArrayInputStream in = new ByteArrayInputStream(s.getBytes("UTF-8"));

        Properties props = new Properties();

        try {

            props.loadFromXML(in);

            throw new RuntimeException("UnsupportedEncodingException expected");

        } catch (UnsupportedEncodingException expected) { }

    }

    /**

     * Test storeToXML with unsupported encoding

     */

    static void testStoreWithBadEncoding() throws IOException {

        Properties props = new Properties();

        props.put("foo", "bar");

        ByteArrayOutputStream out = new ByteArrayOutputStream();

        try {

            props.storeToXML(out, null, "BAD");

            throw new RuntimeException("UnsupportedEncodingException expected");

        } catch (UnsupportedEncodingException expected) { }

    }

    public static void main(String[] args) throws IOException {

        testLoadAndStore("UTF-8");

        testLoadAndStore("UTF-16");

        testLoadWithoutEncoding();

        testLoadWithBadEncoding();

        testStoreWithBadEncoding();

        // re-run sanity test with security manager

        Policy orig = Policy.getPolicy();

        Policy p = new SimplePolicy(new RuntimePermission("setSecurityManager"),

                                    new PropertyPermission("line.separator", "read"));

        Policy.setPolicy(p);

        System.setSecurityManager(new SecurityManager());

        try {

            testLoadAndStore("UTF-8");

        } finally {

            // turn off security manager and restore policy

            System.setSecurityManager(null);

            Policy.setPolicy(orig);

        }

    }

}