/*

 * 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

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 */

import com.sun.tools.attach.VirtualMachine;

import com.sun.tools.attach.AttachNotSupportedException;

import java.io.File;

import jdk.testlibrary.OutputAnalyzer;

import jdk.testlibrary.ProcessTools;

import jdk.testlibrary.ProcessThread;

/*

 * @test

 * @bug 6173612 6273707 6277253 6335921 6348630 6342019 6381757

 * @summary Basic unit tests for the VM attach mechanism. Unit test for Attach

 * API - this checks that a SecurityException is thrown as expected.

 *

 * @library /lib/testlibrary

 * @modules jdk.attach

 *          jdk.jartool/sun.tools.jar

 *

 * @run build jdk.testlibrary.* Application

 * @run main PermissionTest

 */

public class PermissionTest {

    /*

     * The actual test is in the nested class TestMain.

     * The responsibility of this class is to:

     * 1. Start the Application class in a separate process.

     * 2. Find the pid and shutdown port of the running Application.

     * 3. Run the tests in TstMain that will attach to the Application.

     * 4. Shut down the Application.

     */

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

        ProcessThread processThread = null;

        try {

            processThread = RunnerUtil.startApplication();

            runTests(processThread.getPid());

        } catch (Throwable t) {

            System.out.println("TestPermission got unexpected exception: " + t);

            t.printStackTrace();

            throw t;

        } finally {

            // Make sure the Application process is stopped.

            RunnerUtil.stopApplication(processThread);

        }

    }

    /**

     * Runs the actual test the nested class TestMain.

     * The test is run in a separate process because we need to add to the classpath.

     */

    private static void runTests(long pid) throws Throwable {

        final String sep = File.separator;

        String classpath =

            System.getProperty("test.class.path", "");

        String testSrc = System.getProperty("test.src", "") + sep;

        // Use a policy that will NOT allow attach. Test will verify exception.

        String[] args = {

            "-classpath",

            classpath,

            "-Djava.security.manager",

            String.format("-Djava.security.policy=%sjava.policy.deny", testSrc),

            "PermissionTest$TestMain",

            Long.toString(pid),

            "true" };

        OutputAnalyzer output = ProcessTools.executeTestJvm(args);

        output.shouldHaveExitValue(0);

        // Use a policy that will allow attach.

        args = new String[] {

            "-classpath",

            classpath,

            "-Djava.security.manager",

            String.format("-Djava.security.policy=%sjava.policy.allow", testSrc),

            "PermissionTest$TestMain",

            Long.toString(pid),

            "false" };

        output = ProcessTools.executeTestJvm(args);

        output.shouldHaveExitValue(0);

    }

    /**

     * This is the actual test code. It will attach to the Application and verify

     * that we get a SecurityException when that is expected.

     */

    public static class TestMain {

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

            SecurityManager sm = System.getSecurityManager();

            if (sm == null) {

                throw new RuntimeException("Test configuration error - no security manager set");

            }

            String pid = args[0];

            boolean shouldFail = Boolean.parseBoolean(args[1]);

            try {

                VirtualMachine.attach(pid).detach();

                if (shouldFail) {

                    throw new RuntimeException("SecurityException should be thrown");

                }

                System.out.println(" - attached to target VM as expected.");

            } catch (Exception x) {

                // AttachNotSupportedException thrown when no providers can be loaded

                if (shouldFail && ((x instanceof AttachNotSupportedException) ||

                    (x instanceof SecurityException))) {

                    System.out.println(" - exception thrown as expected.");

                } else {

                    throw x;

                }

            }

        }

    }

}