/*

 * Copyright (c) 2015, 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.

 */

import java.io.ByteArrayInputStream;

import java.io.ByteArrayOutputStream;

import java.io.FileInputStream;

import java.io.IOException;

import java.io.InputStream;

import java.io.UncheckedIOException;

import java.io.UnsupportedEncodingException;

import java.nio.file.Files;

import java.nio.file.Paths;

import java.util.Properties;

import java.util.logging.LogManager;

/**

 * @test

 * @bug 8075810

 * @run main/othervm InvalidEscapeConfigurationTest

 * @author danielfuchs

 */

public class InvalidEscapeConfigurationTest {

    public static void main(String[] args)

            throws UnsupportedEncodingException, IOException {

        String[] validEscapes = {

            "com.f\\u006fo.level = INF\\u004f",

            "com.f\\u006fo.level = INFO",

            "com.foo.level = INF\\u004f"

        };

        String[] invalidEscapes = {

            "com.fo\\u0O6f.level = INF\\u0O4f",

            "com.fo\\u0O6f.level = INFO",

            "com.foo.level = INF\\u0O4f"

        };

        for (String line : validEscapes) {

            test(line, true);

        }

        for (String line : invalidEscapes) {

            test(line, false);

        }

        try {

            Properties props = new Properties();

            props.load((InputStream)null);

            throw new RuntimeException("Properties.load(null): "

                    + "NullPointerException exception not raised");

        } catch (NullPointerException x) {

            System.out.println("Properties.load(null): "

                    + "got expected exception: " + x);

        }

        try {

            LogManager.getLogManager().readConfiguration(null);

            throw new RuntimeException("LogManager.readConfiguration(null): "

                    + "NullPointerException exception not raised");

        } catch (NullPointerException x) {

            System.out.println("LogManager.readConfiguration(null): "

                    + "got expected exception: " + x);

        }

    }

    public static void test(String line, boolean valid) throws IOException {

        String test = (valid ? "valid" : "invalid")

                + " line \"" +line + "\"";

        System.out.println("Testing " + test);

        // First verify that we get the expected result from Properties.load()

        try {

            ByteArrayInputStream bais =

                    new ByteArrayInputStream(line.getBytes("UTF-8"));

            Properties props = new Properties();

            props.load(bais);

            if (!valid) {

                throw new RuntimeException(test

                        + "\n\tProperties.load: expected exception not raised");

            } else {

                System.out.println("Properties.load passed for " + test);

            }

        } catch(IllegalArgumentException x) {

            if (!valid) {

                System.out.println(

                        "Properties.load: Got expected exception: "

                        + x + "\n\tfor " + test);

            } else {

                throw x;

            }

        }

        // Then verify that we get the expected result from

        // LogManager.readConfiguration

        try {

            String content = defaultConfiguration() + '\n' + line + '\n';

            ByteArrayInputStream bais =

                    new ByteArrayInputStream(content.getBytes("UTF-8"));

            LogManager.getLogManager().readConfiguration(bais);

            if (!valid) {

                throw new RuntimeException(test

                        + "\n\tLogManager.readConfiguration: "

                        + "expected exception not raised");

            } else {

                System.out.println("LogManager.readConfiguration passed for "

                        + test);

            }

        } catch(IOException x) {

            if (!valid) {

                System.out.println(

                        "LogManager.readConfiguration: Got expected exception: "

                        + x + "\n\tfor " + test);

            } else {

                throw x;

            }

        }

    }

    static String getConfigurationFileName() {

        String fname = System.getProperty("java.util.logging.config.file");

        if (fname == null) {

            fname = System.getProperty("java.home");

            if (fname == null) {

                throw new Error("Can't find java.home ??");

            }

            fname = Paths.get(fname, "conf", "logging.properties")

                    .toAbsolutePath().normalize().toString();

        }

        return fname;

    }

    static String defaultConfiguration() throws IOException {

        Properties props = new Properties();

        String fileName = getConfigurationFileName();

        if (Files.exists(Paths.get(fileName))) {

            try (InputStream is = new FileInputStream(fileName);) {

                props.load(is);

            } catch(IOException x) {

                throw new UncheckedIOException(x);

            }

        }

        ByteArrayOutputStream bos = new ByteArrayOutputStream();

        props.store(bos, null);

        return bos.toString();

    }

}