2265 lines
68 KiB
Java
2265 lines
68 KiB
Java
/*
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* Copyright (c) 2002-2008 LWJGL Project
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* * Neither the name of 'LWJGL' nor the names of
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* its contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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package org.lwjgl.util.applet;
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import org.lwjgl.LWJGLUtil;
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import java.applet.Applet;
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import java.applet.AppletStub;
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import java.awt.BorderLayout;
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import java.awt.Color;
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import java.awt.EventQueue;
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import java.awt.FontMetrics;
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import java.awt.Graphics;
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import java.awt.Image;
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import java.awt.MediaTracker;
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import java.awt.image.ImageObserver;
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import java.io.BufferedInputStream;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.FileOutputStream;
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import java.io.FilePermission;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.ObjectInputStream;
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import java.io.ObjectOutputStream;
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import java.io.OutputStream;
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import java.io.PrintWriter;
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import java.io.StringWriter;
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import java.io.Writer;
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import java.lang.reflect.Constructor;
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import java.lang.reflect.Field;
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import java.net.HttpURLConnection;
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import java.net.JarURLConnection;
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import java.net.SocketPermission;
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import java.net.URL;
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import java.net.URLClassLoader;
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import java.net.URLConnection;
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import java.security.AccessControlException;
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import java.security.AccessController;
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import java.security.AllPermission;
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import java.security.CodeSource;
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import java.security.PermissionCollection;
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import java.security.Permissions;
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import java.security.PrivilegedExceptionAction;
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import java.security.cert.Certificate;
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import java.util.Enumeration;
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import java.util.HashMap;
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import java.util.Iterator;
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import java.util.LinkedList;
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import java.util.Queue;
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import java.util.StringTokenizer;
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import java.util.Vector;
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import java.util.concurrent.ExecutorService;
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import java.util.concurrent.Executors;
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import java.util.concurrent.Future;
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import java.util.jar.JarEntry;
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import java.util.jar.JarFile;
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import java.util.jar.JarOutputStream;
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import java.util.jar.Pack200;
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import java.util.zip.CRC32;
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import java.util.zip.CheckedInputStream;
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import java.util.zip.GZIPInputStream;
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import java.util.zip.ZipEntry;
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import java.util.zip.ZipFile;
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/**
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* <p>
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* The AppletLoader enables deployment of LWJGL to applets in an easy
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* and polished way. The loader will display a configurable logo and progressbar
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* while the relevant jars (generic and native) are downloaded from a specified source.
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* </p>
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* <p>
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* The downloaded jars are extracted to the users temporary directory - and if enabled, cached for
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* faster loading in future uses.
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* </p>
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* <p>
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* The following applet parameters are required:
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* <ul>
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* <li>al_main - [String] Full package and class the applet to instantiate and display when loaded.</li>
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* <li>al_jars - [String] Comma separated list of jars to download.</li>
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* <p>
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* <li>al_windows - [String] Jar containing native files for windows.</li>
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* <li>al_linux - [String] Jar containing native files for linux.</li>
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* <li>al_mac - [String] Jar containing native files for mac.</li>
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* <li>al_solaris - [String] Jar containing native files for solaris.</li>
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* <li>al_freebsd - [String] Jar containing native files for freebsd.</li>
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* <li>al_openbsd - [String] Jar containing native files for openbsd.</li>
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* </ul>
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* </p>
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* <p>
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* Additionally the following parameters can be supplied to tweak the behaviour of the AppletLoader.
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* <ul>
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* <li>al_cache - [boolean] Whether to use cache system. <i>Default: true</i>.</li>
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* <li>al_version - [int or float] Version of deployment. If this is specified, the jars will be cached and
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* reused if the version matches. If version doesn't match all of the files are reloaded.</li>
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*
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* <li>al_debug - [boolean] Whether to enable debug mode. <i>Default: false</i>.</li>
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* <li>al_min_jre - [String] Specify the minimum jre version that the applet requires, should be in format like 1.8.0_291-b10 or a subset like 1.8 <i>Default: 1.8</i>.</li>
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* <li>al_prepend_host - [boolean] Whether to limit caching to this domain, disable if your applet is hosted on multiple domains and needs to share the cache. <i>Default: true</i>.</li>
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* <li>al_lookup_threads - [int] Specify the number of concurrent threads to use to get file information before downloading. <i>Default: 1</i>.</li>
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* <p>
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* <li>al_windows64 - [String] If specified it will be used instead of al_windows on 64bit windows systems.</li>
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* <li>al_windows32 - [String] If specified it will be used instead of al_windows on 32bit windows systems.</li>
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* <li>al_linux64 - [String] If specified it will be used instead of al_linux on 64bit linux systems.</li>
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* <li>al_linux32 - [String] If specified it will be used instead of al_linux on 32bit linux systems.</li>
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* <li>al_mac32 - [String] If specified it will be used instead of al_mac on 64bit mac systems.</li>
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* <li>al_mac64 - [String] If specified it will be used instead of al_mac on 32bit mac systems.</li>
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* <li>al_macppc - [String] If specified it will be used instead of al_mac on PPC mac systems.</li>
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* <p>
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* <li>boxbgcolor - [String] any String AWT color ("red", "blue", etc), RGB (0-255) or hex formated color (#RRGGBB) to use as background. <i>Default: #ffffff</i>.</li>
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* <li>boxfgcolor - [String] any String AWT color ("red", "blue", etc), RGB (0-255) or hex formated color (#RRGGBB) to use as foreground. <i>Default: #000000</i>.</li>
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* <p>
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* <li>al_logo - [String Path of of the logo resource to paint while loading.<i>Default: "appletlogo.gif"</i>.</li>
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* <li>al_progressbar - [String] Path of the progressbar resource to paint on top of the logo, width clipped by percentage.<i>Default: "appletprogress.gif"</i>.</li>
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* <p>
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* <li>lwjgl_arguments - </li> [String] used to pass LWJGL parameters to LWJGL e.g. ("-Dorg.lwjgl.input.Mouse.allowNegativeMouseCoords=true -Dorg.lwjgl.util.Debug=true").</li>
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* </ul>
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* </p>
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* @author kappaOne <one.kappa@gmail.com>
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* @author Brian Matzon <brian@matzon.dk>
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* @version $Revision$
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* $Id$
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*
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* Contributors:
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* <ul>
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* <li>Arielsan</li>
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* <li>Bobjob</li>
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* <li>Dashiva</li>
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* <li>Dr_evil</li>
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* <li>Elias Naur</li>
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* <li>Kevin Glass</li>
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* <li>Matthias Mann</li>
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* <li>Mickelukas</li>
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* <li>NateS</li>
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* <li>Pelle Johnsen</li>
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* <li>Riven</li>
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* <li>Ruben01</li>
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* <li>Shannon Smith</li>
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* </ul>
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*
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*/
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public class AppletLoader extends Applet implements Runnable, AppletStub {
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/** initializing */
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public static final int STATE_INIT = 1;
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/** checking version of jre */
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public static final int STATE_CHECK_JRE_VERSION = 2;
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/** determining which packages that are required */
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public static final int STATE_DETERMINING_PACKAGES = 3;
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/** checking for already downloaded files */
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public static final int STATE_CHECKING_CACHE = 4;
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/** checking if any updates are available for cache files */
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public static final int STATE_CHECKING_FOR_UPDATES = 5;
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/** downloading packages */
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public static final int STATE_DOWNLOADING = 6;
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/** extracting packages */
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public static final int STATE_EXTRACTING_PACKAGES = 7;
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/** validating packages */
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public static final int STATE_VALIDATING_PACKAGES = 8;
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/** updating the classpath */
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public static final int STATE_UPDATING_CLASSPATH = 9;
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/** switching to real applet */
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public static final int STATE_SWITCHING_APPLET = 10;
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/** initializing real applet */
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public static final int STATE_INITIALIZE_REAL_APPLET = 11;
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/** stating real applet */
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public static final int STATE_START_REAL_APPLET = 12;
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/** done */
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public static final int STATE_DONE = 13;
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/** used to calculate length of progress bar */
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protected volatile int percentage;
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/** total size of download in bytes */
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protected int totalDownloadSize;
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/** current size of extracted in bytes */
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protected int currentSizeExtract;
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/** total size of extracted in bytes */
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protected int totalSizeExtract;
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/** logo to be shown while loading */
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protected Image logo, logoBuffer;
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/** progressbar to render while loading */
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protected Image progressbar, progressbarBuffer;
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/** offscreen image used */
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protected Image offscreen;
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/** set to true while painting is done */
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protected boolean painting;
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/** background color of applet */
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protected Color bgColor = Color.white;
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/** color to write foreground in */
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protected Color fgColor = Color.black;
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/** urls of the jars to download */
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protected URL[] urlList;
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/** classLoader used to add downloaded jars to the classpath */
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protected ClassLoader classLoader;
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/** actual thread that does the loading */
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protected Thread loaderThread;
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/** animation thread that renders our load screen while loading */
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protected Thread animationThread;
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/** applet to load after all downloads are complete */
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protected Applet lwjglApplet;
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/** whether we're running in debug mode */
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protected boolean debugMode;
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/** whether to prepend host to cache path */
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protected boolean prependHost;
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/** Used to store file names with lastModified time */
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protected HashMap<String, Long> filesLastModified;
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/** Sizes of files to download */
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protected int[] fileSizes;
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/** Number of native jars */
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protected int nativeJarCount;
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/** whether to use caching system, only download files that have changed */
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protected boolean cacheEnabled;
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/** String to display as a subtask */
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protected String subtaskMessage = "";
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/** state of applet loader */
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protected volatile int state = STATE_INIT;
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/** whether lzma is supported */
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protected boolean lzmaSupported;
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/** whether pack200 is supported */
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protected boolean pack200Supported;
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/** whether to run in headless mode */
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protected boolean headless = false;
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/** whether to switch applets in headless mode or wait longer */
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protected boolean headlessWaiting = true;
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/** messages to be passed via liveconnect in headless mode */
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protected String[] headlessMessage;
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/** threads to use when fetching information of files to be downloaded */
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protected int concurrentLookupThreads;
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/** whether a fatal error occurred */
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protected boolean fatalError;
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/** whether a certificate refused error occurred */
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protected boolean certificateRefused;
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/** whether the minimum required JRE version is not found */
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protected boolean minimumJreNotFound;
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/** generic error message to display on error */
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protected String[] genericErrorMessage = { "An error occured while loading the applet.",
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"Please contact support to resolve this issue.",
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"<placeholder for error message>"};
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/** error message to display if user refuses to accept certificate*/
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protected String[] certificateRefusedMessage = { "Permissions for Applet Refused.",
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"Please accept the permissions dialog to allow",
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"the applet to continue the loading process."};
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/** error message to display if minimum JRE version is not met */
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protected String[] minimumJREMessage = { "Your version of Java is out of date.",
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"Visit java.com to get the latest version.",
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"Java <al_min_jre> or greater is required."};
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/** fatal error message to display */
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protected String[] errorMessage;
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/** have natives been loaded by another instance of this applet */
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protected static boolean natives_loaded;
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/*
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* @see java.applet.Applet#init()
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*/
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public void init() {
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setState(STATE_INIT);
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// sanity check
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String[] requiredArgs = {"al_main", "al_jars"};
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for ( String requiredArg : requiredArgs ) {
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if ( getParameter(requiredArg) == null ) {
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fatalErrorOccured("missing required applet parameter: " + requiredArg, null);
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return;
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}
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}
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// whether to use cache system
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cacheEnabled = getBooleanParameter("al_cache", true);
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// whether to run in debug mode
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debugMode = getBooleanParameter("al_debug", false);
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// whether to prepend host to cache path
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prependHost = getBooleanParameter("al_prepend_host", true);
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// whether to run in headless mode
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headless = getBooleanParameter("al_headless", false);
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// obtain the number of concurrent lookup threads to use
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concurrentLookupThreads = getIntParameter("al_lookup_threads", 1); // defaults to 1
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// get colors of applet
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bgColor = getColor("boxbgcolor", Color.white);
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setBackground(bgColor);
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fgColor = getColor("boxfgcolor", Color.black);
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if (!headless) {
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// load logos
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logo = getImage(getStringParameter("al_logo", "appletlogo.gif"));
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progressbar = getImage(getStringParameter("al_progressbar", "appletprogress.gif"));
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}
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// check for lzma support
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try {
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Class.forName("LZMA.LzmaInputStream");
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lzmaSupported = true;
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} catch (Throwable e) {
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/* no lzma support */
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}
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// check pack200 support
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try {
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java.util.jar.Pack200.class.getSimpleName();
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pack200Supported = true;
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} catch (Throwable e) {
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/* no pack200 support */
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}
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}
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/**
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* Generates a stacktrace in the form of a string
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* @param exception Exception to make stacktrace of
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* @return Stacktrace of exception in the form of a string
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*/
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private static String generateStacktrace(Exception exception) {
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Writer result = new StringWriter();
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PrintWriter printWriter = new PrintWriter(result);
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exception.printStackTrace(printWriter);
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return result.toString();
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}
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/*
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* @see java.applet.Applet#start()
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*/
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public void start() {
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if (lwjglApplet != null) {
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lwjglApplet.start();
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}
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else {
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if(loaderThread == null && !fatalError) {
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loaderThread = new Thread(this);
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loaderThread.setName("AppletLoader.loaderThread");
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loaderThread.start();
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if (!headless) {
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animationThread = new Thread() {
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public void run() {
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while(loaderThread != null) {
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repaint();
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AppletLoader.this.sleep(100);
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}
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animationThread = null;
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}
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};
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animationThread.setName("AppletLoader.animationthread");
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animationThread.start();
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}
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}
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}
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}
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/*
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* @see java.applet.Applet#stop()
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*/
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public void stop() {
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if (lwjglApplet != null) {
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lwjglApplet.stop();
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}
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}
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/*
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* @see java.applet.Applet#destroy()
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*/
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public void destroy() {
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if (lwjglApplet != null) {
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lwjglApplet.destroy();
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}
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}
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/**
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* Clean up resources
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*/
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protected void cleanUp() {
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progressbar = null;
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logo = null;
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logoBuffer = null;
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progressbarBuffer = null;
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offscreen = null;
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}
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/**
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* Retrieves the applet that has been loaded. Useful for liveconnect.
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*/
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public Applet getApplet() {
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return lwjglApplet;
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}
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/**
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* Retrieves the current status of the AppletLoader and is
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* used by liveconnect when running in headless mode.
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*
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* This method will return the current progress of the AppletLoader
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* as a value from 0-100. In the case of a fatal error it will
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* return -1. If the certificate is refused it will return -2.
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* If the minimum jre requirement is not met will return -3.
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*
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* When method returns 100 the AppletLoader will sleep until the
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* method is called again. When called again it will switch to the
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* LWJGL Applet. This is a useful trigger to start the LWJGL applet
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* when needed.
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*/
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public int getStatus() {
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if (fatalError) {
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headlessMessage = errorMessage;
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if (certificateRefused) return -2;
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if (minimumJreNotFound) return -3;
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return -1;
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}
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if (percentage == 100 && headlessWaiting) {
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headlessWaiting = false;
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}
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if (percentage == 95) {
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percentage = 100; // ready to switch applet
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}
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String[] message = {getDescriptionForState(), subtaskMessage};
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headlessMessage = message;
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return percentage;
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}
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/**
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* Retrieves the current message for the current status.
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* Used by liveconnect when running in headless mode.
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*/
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public String[] getMessages() {
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return headlessMessage;
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}
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/**
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* Transfers the call of AppletResize from the stub to the lwjglApplet.
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*/
|
|
public void appletResize(int width, int height) {
|
|
resize(width, height);
|
|
}
|
|
|
|
/*
|
|
* @see java.awt.Container#update(java.awt.Graphics)
|
|
*/
|
|
public final void update(Graphics g) {
|
|
paint(g);
|
|
}
|
|
|
|
/*
|
|
* @see java.awt.Container#paint(java.awt.Graphics)
|
|
*/
|
|
public void paint(Graphics g) {
|
|
// don't paint loader if applet loaded
|
|
if(state == STATE_DONE) {
|
|
cleanUp(); // clean up resources
|
|
return;
|
|
}
|
|
|
|
// no drawing in headless mode
|
|
if (headless) return;
|
|
|
|
// create offscreen if missing
|
|
if (offscreen == null) {
|
|
offscreen = createImage(getWidth(), getHeight());
|
|
|
|
// create buffers for animated gifs
|
|
if (logo != null) {
|
|
logoBuffer = createImage(logo.getWidth(null), logo.getHeight(null));
|
|
// add image observer, it will notify when next animated gif frame is ready
|
|
offscreen.getGraphics().drawImage(logo, 0, 0, this);
|
|
// in case image is not animated fill image buffer once
|
|
imageUpdate(logo, ImageObserver.FRAMEBITS, 0, 0, 0, 0);
|
|
}
|
|
|
|
if (progressbar != null) {
|
|
progressbarBuffer = createImage(progressbar.getWidth(null), progressbar.getHeight(null));
|
|
// add image observer, it will notify when next animated gif frame is ready
|
|
offscreen.getGraphics().drawImage(progressbar, 0, 0, this);
|
|
// in case image is not animated fill image buffer once
|
|
imageUpdate(progressbar, ImageObserver.FRAMEBITS, 0, 0, 0, 0);
|
|
}
|
|
}
|
|
|
|
// draw everything onto an image before drawing to avoid flicker
|
|
Graphics og = offscreen.getGraphics();
|
|
FontMetrics fm = og.getFontMetrics();
|
|
|
|
// clear background color
|
|
og.setColor(bgColor);
|
|
og.fillRect(0, 0, offscreen.getWidth(null), offscreen.getHeight(null));
|
|
|
|
og.setColor(fgColor);
|
|
|
|
// if we had a failure of some sort, notify the user
|
|
if (fatalError) {
|
|
for(int i=0; i<errorMessage.length; i++) {
|
|
if(errorMessage[i] != null) {
|
|
int messageX = (offscreen.getWidth(null) - fm.stringWidth(errorMessage[i])) / 2;
|
|
int messageY = (offscreen.getHeight(null) - (fm.getHeight() * errorMessage.length)) / 2;
|
|
|
|
og.drawString(errorMessage[i], messageX, messageY + i*fm.getHeight());
|
|
}
|
|
}
|
|
} else {
|
|
og.setColor(fgColor);
|
|
|
|
painting = true;
|
|
|
|
// get position at the middle of the offscreen buffer
|
|
int x = offscreen.getWidth(null)/2;
|
|
int y = offscreen.getHeight(null)/2;
|
|
|
|
// draw logo
|
|
if (logo != null) {
|
|
og.drawImage(logoBuffer, x-logo.getWidth(null)/2, y-logo.getHeight(null)/2, this);
|
|
}
|
|
|
|
// draw message
|
|
String message = getDescriptionForState();
|
|
|
|
int messageX = (offscreen.getWidth(null) - fm.stringWidth(message)) / 2;
|
|
int messageY = y + 20;
|
|
|
|
if (logo != null) messageY += logo.getHeight(null)/2;
|
|
else if (progressbar != null) messageY += progressbar.getHeight(null)/2;
|
|
|
|
og.drawString(message, messageX, messageY);
|
|
|
|
// draw subtaskmessage, if any
|
|
if(subtaskMessage.length() > 0) {
|
|
messageX = (offscreen.getWidth(null) - fm.stringWidth(subtaskMessage)) / 2;
|
|
og.drawString(subtaskMessage, messageX, messageY+20);
|
|
}
|
|
|
|
// draw loading progress bar, clipping it depending on percentage done
|
|
if (progressbar != null) {
|
|
int barSize = (progressbar.getWidth(null) * percentage) / 100;
|
|
og.clipRect(x-progressbar.getWidth(null)/2, 0, barSize, offscreen.getHeight(null));
|
|
og.drawImage(progressbarBuffer, x-progressbar.getWidth(null)/2, y-progressbar.getHeight(null)/2, this);
|
|
}
|
|
|
|
painting = false;
|
|
}
|
|
|
|
og.dispose();
|
|
|
|
// finally draw it all centred
|
|
g.drawImage(offscreen, (getWidth() - offscreen.getWidth(null))/2, (getHeight() - offscreen.getHeight(null))/2, null);
|
|
}
|
|
|
|
/**
|
|
* When an animated gif frame is ready to be drawn the ImageObserver
|
|
* will call this method.
|
|
*
|
|
* The Image frame is copied into a buffer, which is then drawn.
|
|
* This is done to prevent image tearing on gif animations.
|
|
*/
|
|
public boolean imageUpdate(Image img, int flag, int x, int y, int width, int height) {
|
|
|
|
// finish with this ImageObserver
|
|
if (state == STATE_DONE) return false;
|
|
|
|
// if image frame is ready to be drawn and is currently not being painted
|
|
if (flag == ImageObserver.FRAMEBITS && !painting) {
|
|
Image buffer;
|
|
|
|
// select which buffer to fill
|
|
if (img == logo) buffer = logoBuffer;
|
|
else buffer = progressbarBuffer;
|
|
|
|
Graphics g = buffer.getGraphics();
|
|
|
|
// clear background on buffer
|
|
g.setColor(bgColor);
|
|
g.fillRect(0, 0, buffer.getWidth(null), buffer.getHeight(null));
|
|
|
|
// buffer background is cleared, so draw logo under progressbar
|
|
if (img == progressbar && logo != null) {
|
|
g.drawImage(logoBuffer, progressbar.getWidth(null)/2-logo.getWidth(null)/2,
|
|
progressbar.getHeight(null)/2-logo.getHeight(null)/2, null);
|
|
}
|
|
|
|
g.drawImage(img, 0, 0, this);
|
|
g.dispose();
|
|
|
|
repaint();
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* @return string describing the state of the loader
|
|
*/
|
|
protected String getDescriptionForState() {
|
|
switch (state) {
|
|
case STATE_INIT:
|
|
return "Initializing loader";
|
|
case STATE_CHECK_JRE_VERSION:
|
|
return "Checking version";
|
|
case STATE_DETERMINING_PACKAGES:
|
|
return "Determining packages to load";
|
|
case STATE_CHECKING_CACHE:
|
|
return "Calculating download size";
|
|
case STATE_CHECKING_FOR_UPDATES:
|
|
return "Checking for updates";
|
|
case STATE_DOWNLOADING:
|
|
return "Downloading packages";
|
|
case STATE_EXTRACTING_PACKAGES:
|
|
return "Extracting downloaded packages";
|
|
case STATE_VALIDATING_PACKAGES:
|
|
return "Validating packages";
|
|
case STATE_UPDATING_CLASSPATH:
|
|
return "Updating classpath";
|
|
case STATE_SWITCHING_APPLET:
|
|
return "Switching applet";
|
|
case STATE_INITIALIZE_REAL_APPLET:
|
|
return "Initializing real applet";
|
|
case STATE_START_REAL_APPLET:
|
|
return "Starting real applet";
|
|
case STATE_DONE:
|
|
return "Done loading";
|
|
default:
|
|
return "unknown state";
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Trims the passed file string based on the available capabilities
|
|
* @param file string of files to be trimmed
|
|
* @return trimmed string based on capabilities of client
|
|
*/
|
|
protected String trimExtensionByCapabilities(String file) {
|
|
if (!pack200Supported) {
|
|
file = file.replace(".pack", "");
|
|
}
|
|
|
|
if (!lzmaSupported && file.endsWith(".lzma")) {
|
|
file = file.replace(".lzma", "");
|
|
System.out.println("LZMA decoder (lzma.jar) not found, trying " + file + " without lzma extension.");
|
|
}
|
|
return file;
|
|
}
|
|
|
|
/**
|
|
* Reads list of jars to download and adds the urls to urlList
|
|
* also finds out which OS you are on and adds appropriate native
|
|
* jar to the urlList
|
|
*/
|
|
protected void loadJarURLs() throws Exception {
|
|
setState(STATE_DETERMINING_PACKAGES);
|
|
|
|
// jars to load
|
|
String jarList = getParameter("al_jars");
|
|
String nativeJarList = null;
|
|
|
|
String osName = System.getProperty("os.name");
|
|
|
|
if (osName.startsWith("Win")) {
|
|
|
|
// check if arch specific natives have been specified
|
|
if (System.getProperty("os.arch").endsWith("64")) {
|
|
nativeJarList = getParameter("al_windows64");
|
|
} else {
|
|
nativeJarList = getParameter("al_windows32");
|
|
}
|
|
|
|
if (nativeJarList == null) {
|
|
nativeJarList = getParameter("al_windows");
|
|
}
|
|
|
|
} else if (osName.startsWith("Linux") || osName.startsWith("Unix")) {
|
|
|
|
// check if arch specific natives have been specified
|
|
if (System.getProperty("os.arch").endsWith("64")) {
|
|
nativeJarList = getParameter("al_linux64");
|
|
} else {
|
|
nativeJarList = getParameter("al_linux32");
|
|
}
|
|
|
|
if (nativeJarList == null) {
|
|
nativeJarList = getParameter("al_linux");
|
|
}
|
|
|
|
} else if (osName.startsWith("Mac") || osName.startsWith("Darwin")) {
|
|
|
|
// check if arch specific natives have been specified
|
|
if (System.getProperty("os.arch").endsWith("64")) {
|
|
nativeJarList = getParameter("al_mac64");
|
|
} else if (System.getProperty("os.arch").contains("ppc")) {
|
|
nativeJarList = getParameter("al_macppc");
|
|
} else {
|
|
nativeJarList = getParameter("al_mac32");
|
|
}
|
|
|
|
if (nativeJarList == null) {
|
|
nativeJarList = getParameter("al_mac");
|
|
}
|
|
|
|
} else if (osName.startsWith("Solaris") || osName.startsWith("SunOS")) {
|
|
nativeJarList = getParameter("al_solaris");
|
|
} else if (osName.startsWith("FreeBSD")) {
|
|
nativeJarList = getParameter("al_freebsd");
|
|
} else if (osName.startsWith("OpenBSD")) {
|
|
nativeJarList = getParameter("al_openbsd");
|
|
} else {
|
|
fatalErrorOccured("OS (" + osName + ") not supported", null);
|
|
return;
|
|
}
|
|
|
|
if (nativeJarList == null) {
|
|
fatalErrorOccured("no lwjgl natives files found", null);
|
|
return;
|
|
}
|
|
|
|
jarList = trimExtensionByCapabilities(jarList);
|
|
StringTokenizer jars = new StringTokenizer(jarList, ", ");
|
|
|
|
nativeJarList = trimExtensionByCapabilities(nativeJarList);
|
|
StringTokenizer nativeJars = new StringTokenizer(nativeJarList, ", ");
|
|
|
|
int jarCount = jars.countTokens();
|
|
nativeJarCount = nativeJars.countTokens();
|
|
|
|
urlList = new URL[jarCount+nativeJarCount];
|
|
|
|
URL path = getCodeBase();
|
|
|
|
// set jars urls
|
|
for (int i = 0; i < jarCount; i++) {
|
|
urlList[i] = new URL(path, jars.nextToken());
|
|
}
|
|
|
|
for (int i = jarCount; i < jarCount+nativeJarCount; i++) {
|
|
urlList[i] = new URL(path, nativeJars.nextToken());
|
|
}
|
|
}
|
|
|
|
/**
|
|
* 9 steps
|
|
*
|
|
* 1) check jre version meets minimum requirements
|
|
* 2) check applet cache and decide which jars to download
|
|
* 3) download the jars
|
|
* 4) extract native files
|
|
* 5) validate jars for any corruption
|
|
* 6) save applet cache information
|
|
* 7) add jars to class path
|
|
* 8) set any lwjgl properties
|
|
* 9) switch to loaded applet
|
|
*/
|
|
public void run() {
|
|
percentage = 5;
|
|
|
|
try {
|
|
debug_sleep(2000);
|
|
|
|
// check JRE version meets minimum requirements
|
|
if (!isMinJREVersionAvailable()) {
|
|
minimumJreNotFound = true;
|
|
fatalErrorOccured("Java " + getStringParameter("al_min_jre", "1.8") + " or greater is required.", null);
|
|
return;
|
|
}
|
|
|
|
// parse the urls for the jars into the url list
|
|
loadJarURLs();
|
|
|
|
// get path where applet files will be stored
|
|
String path = getCacheDirectory();
|
|
|
|
File dir = new File(path);
|
|
|
|
// create directory
|
|
if (!dir.exists()) {
|
|
dir.mkdirs();
|
|
}
|
|
|
|
File versionFile = new File(dir, "version");
|
|
|
|
// if specified applet version already available don't download anything
|
|
boolean versionAvailable = false;
|
|
|
|
// version string of applet
|
|
String version = getParameter("al_version");
|
|
|
|
// if applet version specifed, compare with version in the cache
|
|
if (version != null) {
|
|
versionAvailable = compareVersion(versionFile, version.toLowerCase());
|
|
}
|
|
|
|
// if jars not available or need updating download them
|
|
if (!versionAvailable) {
|
|
// get jars file sizes and check cache
|
|
getJarInfo(dir); // 5-15%
|
|
|
|
// downloads jars from the server
|
|
downloadJars(path); // 15-55%
|
|
|
|
// Extract Pack and LZMA files
|
|
extractJars(path); // 55-65%
|
|
|
|
// Extracts Native Files
|
|
extractNatives(path); // 65-80%
|
|
|
|
// Validate Jars // 80-90%
|
|
validateJars(path);
|
|
|
|
// save version information once jars downloaded successfully
|
|
if (version != null) {
|
|
percentage = 90;
|
|
writeObjectFile(versionFile, version.toLowerCase());
|
|
}
|
|
|
|
// save file names with last modified info once downloaded successfully
|
|
writeObjectFile(new File(dir, "timestamps"), filesLastModified);
|
|
}
|
|
|
|
// add the downloaded jars and natives to classpath
|
|
updateClassPath(path);
|
|
|
|
// set lwjgl properties
|
|
setLWJGLProperties();
|
|
|
|
// if headless mode then sleep, until told to continue
|
|
if (headless) {
|
|
while(headlessWaiting) {
|
|
Thread.sleep(100);
|
|
}
|
|
}
|
|
|
|
// make applet switch on the EDT as an AWT/Swing permission dialog could be called
|
|
EventQueue.invokeAndWait(new Runnable() {
|
|
public void run() {
|
|
try {
|
|
switchApplet();
|
|
} catch (Exception e) {
|
|
fatalErrorOccured("This occurred while '" + getDescriptionForState() + "'", e);
|
|
}
|
|
setState(STATE_DONE);
|
|
repaint();
|
|
}
|
|
});
|
|
|
|
} catch (Exception e) {
|
|
certificateRefused = e instanceof AccessControlException;
|
|
fatalErrorOccured("This occurred while '" + getDescriptionForState() + "'", e);
|
|
} finally {
|
|
loaderThread = null;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* When this method is supplied with a JRE version it will compare it to the
|
|
* current JRE version.
|
|
*
|
|
* minimum requried JRE version is set using al_min_jre parameter, if not
|
|
* this is not set then the value will default to version 1.8
|
|
*
|
|
* The minimumVersion should follow a structure such as x.x.x_x
|
|
* Example values would include 1.6.0_10 or a subset like 1.6.0 or 1.6
|
|
*
|
|
* @return returns true if the available version is greater or equal to the
|
|
* minimum version required
|
|
*
|
|
* @throws Exception a NumberFormatException is thrown if the string is not valid
|
|
*/
|
|
public boolean isMinJREVersionAvailable() throws Exception {
|
|
setState(STATE_CHECK_JRE_VERSION);
|
|
|
|
String minimumVersion = getStringParameter("al_min_jre", "1.8");
|
|
String javaVersion = System.getProperty("java.version");
|
|
|
|
// remove dash and anything after it (letters) from version string e.g. 1.8.0_291-b10
|
|
minimumVersion = javaVersion.split("-")[0];
|
|
javaVersion = minimumVersion.split("-")[0];
|
|
|
|
// split version string into a string arrays
|
|
String[] jvmVersionData = javaVersion.split("[_\\.]");
|
|
String[] minVersionData = minimumVersion.split("[_\\.]");
|
|
|
|
int maxLength = Math.max(jvmVersionData.length, minVersionData.length);
|
|
|
|
// convert string arrays into int arrays
|
|
int[] jvmVersion = new int[maxLength];
|
|
int[] minVersion = new int[maxLength];
|
|
|
|
for (int i = 0; i < jvmVersionData.length; i++) {
|
|
jvmVersion[i] = Integer.parseInt(jvmVersionData[i]);
|
|
}
|
|
|
|
for (int i = 0; i < minVersionData.length; i++) {
|
|
minVersion[i] = Integer.parseInt(minVersionData[i]);
|
|
}
|
|
|
|
// compare versions
|
|
for (int i = 0; i < maxLength; i++) {
|
|
if (jvmVersion[i] < minVersion[i]) return false; // minVersion is greater then jvmVersion
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* This method will return true if the version stored in the file
|
|
* matches the supplied String version.
|
|
*
|
|
* @param versionFile - location to file containing version information
|
|
* @param version - String version that needs to be compared
|
|
* @return returns true if the version in file matches specified version
|
|
*/
|
|
protected boolean compareVersion(File versionFile, String version) {
|
|
// if version file exists
|
|
if (versionFile.exists()) {
|
|
String s = readStringFile(versionFile);
|
|
|
|
// compare to version with file
|
|
if (s != null && s.equals(version)) {
|
|
percentage = 90; // not need to download cache files again
|
|
|
|
if(debugMode) {
|
|
System.out.println("Loading Cached Applet Version: " + version);
|
|
}
|
|
debug_sleep(2000);
|
|
|
|
return true; // version matches file
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Parses the java_arguments list and sets lwjgl specific
|
|
* properties accordingly, before the launch.
|
|
*/
|
|
protected void setLWJGLProperties() {
|
|
String lwjglArguments = getParameter("lwjgl_arguments");
|
|
|
|
if(lwjglArguments != null && lwjglArguments.length() > 0) {
|
|
int start = lwjglArguments.indexOf("-Dorg.lwjgl");
|
|
while(start != -1) {
|
|
int end = lwjglArguments.indexOf(" ", start);
|
|
if(end == -1) {
|
|
end = lwjglArguments.length();
|
|
}
|
|
String[] keyValue = lwjglArguments.substring(start+2, end).split("=");
|
|
System.setProperty(keyValue[0], keyValue[1]);
|
|
if(debugMode) {
|
|
System.out.println("Setting property " + keyValue[0] + " to " + keyValue[1]);
|
|
}
|
|
start = lwjglArguments.indexOf("-Dorg.lwjgl", end);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* This method will return the location of the cache directory. All the
|
|
* applet files will be downloaded and stored here. A folder will be
|
|
* created inside the LWJGL cache directory from the al_title parameter.
|
|
* This folder will also be prepended by the host name of the codebase
|
|
* to avoid conflict with same named applets on other hosts.
|
|
*
|
|
* @return path to applets cache directory
|
|
* @throws Exception if access is denied
|
|
*/
|
|
protected String getCacheDirectory() throws Exception {
|
|
|
|
String path = AccessController.doPrivileged(new PrivilegedExceptionAction<String>() {
|
|
public String run() throws Exception {
|
|
|
|
// we append the code base to avoid naming collisions with al_title
|
|
String codebase = "";
|
|
if(prependHost) {
|
|
codebase = getCodeBase().getHost();
|
|
if(codebase == null || codebase.length() == 0) {
|
|
codebase = "localhost";
|
|
}
|
|
codebase += File.separator;
|
|
}
|
|
return getLWJGLCacheDir() + File.separator + codebase + getParameter("al_title") + File.separator;
|
|
}
|
|
});
|
|
|
|
return path;
|
|
}
|
|
|
|
/**
|
|
* Get path to the lwjgl cache directory. This location will be where
|
|
* the OS keeps temporary files.
|
|
*
|
|
* @return path to the lwjgl cache directory
|
|
*/
|
|
protected String getLWJGLCacheDir() {
|
|
String cacheDir = System.getProperty("deployment.user.cachedir");
|
|
|
|
if (cacheDir == null || System.getProperty("os.name").startsWith("Win")) {
|
|
cacheDir = System.getProperty("java.io.tmpdir");
|
|
}
|
|
|
|
return cacheDir + File.separator + "lwjglcache";
|
|
}
|
|
|
|
/**
|
|
* read String object from File
|
|
*
|
|
* @param file to be read
|
|
* @return the String stored in the file or null if it fails
|
|
*/
|
|
protected String readStringFile(File file) {
|
|
try {
|
|
return (String)readObjectFile(file);
|
|
} catch (Exception e) {
|
|
// failed to read version file
|
|
e.printStackTrace();
|
|
}
|
|
|
|
// return null if failed to read file
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* read the HashMap from File
|
|
*
|
|
* @param file the file to read
|
|
* @return the hashmap stored in the file or an empty hashmap if it fails
|
|
*/
|
|
@SuppressWarnings("unchecked")
|
|
protected HashMap<String, Long> readHashMapFile(File file) {
|
|
|
|
try {
|
|
return (HashMap<String, Long>) readObjectFile(file);
|
|
} catch (Exception e) {
|
|
// failed to read hashmap from file
|
|
e.printStackTrace();
|
|
}
|
|
|
|
// return an empty map if failed to read file
|
|
return new HashMap<String, Long>();
|
|
}
|
|
|
|
/**
|
|
* read the object from the File
|
|
*
|
|
* @param file the file to read
|
|
* @return the object contained in the file or null if it fails
|
|
* @throws Exception if it fails to read object from file
|
|
*/
|
|
protected Object readObjectFile(File file) throws Exception {
|
|
FileInputStream fis = new FileInputStream(file);
|
|
|
|
try {
|
|
ObjectInputStream dis = new ObjectInputStream(fis);
|
|
Object object = dis.readObject();
|
|
dis.close();
|
|
return object;
|
|
} catch (Exception e) {
|
|
// failed to read file
|
|
throw e;
|
|
} finally {
|
|
fis.close();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* write object to specified File
|
|
*
|
|
* @param file the file to write out to
|
|
* @param object the contents of the file
|
|
* @throws Exception if it fails to write file
|
|
*/
|
|
protected void writeObjectFile(File file, Object object) throws Exception {
|
|
FileOutputStream fos = new FileOutputStream(file);
|
|
try {
|
|
ObjectOutputStream dos = new ObjectOutputStream(fos);
|
|
dos.writeObject(object);
|
|
dos.close();
|
|
} finally {
|
|
fos.close();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Edits the ClassPath at runtime to include the jars
|
|
* that have just been downloaded and then adds the
|
|
* lwjgl natives folder property.
|
|
*
|
|
* @param path location where applet is stored
|
|
* @throws Exception if it fails to add classpath
|
|
*/
|
|
protected void updateClassPath(final String path) throws Exception {
|
|
|
|
setState(STATE_UPDATING_CLASSPATH);
|
|
|
|
percentage = 95;
|
|
|
|
URL[] urls = new URL[urlList.length];
|
|
|
|
for (int i = 0; i < urlList.length; i++) {
|
|
String file = new File(path, getJarName(urlList[i])).toURI().toString();
|
|
// fix JVM bug where ! is not escaped
|
|
file = file.replace("!", "%21");
|
|
urls[i] = new URL(file);
|
|
}
|
|
|
|
// get AppletLoader certificates
|
|
final Certificate[] certs = getCurrentCertificates();
|
|
|
|
// detect if we are running on a mac and save result as boolean
|
|
String osName = System.getProperty("os.name");
|
|
final boolean isMacOS = (osName.startsWith("Mac") || osName.startsWith("Darwin"));
|
|
|
|
// add downloaded jars to the classpath with required permissions
|
|
classLoader = new URLClassLoader(urls) {
|
|
protected PermissionCollection getPermissions (CodeSource codesource) {
|
|
PermissionCollection perms = null;
|
|
|
|
try {
|
|
// no permissions
|
|
perms = new Permissions();
|
|
|
|
// if certificates match the AppletLoader certificates then we should be all set
|
|
if (certificatesMatch(certs, codesource.getCertificates())) {
|
|
perms.add(new AllPermission());
|
|
return perms;
|
|
}
|
|
|
|
String host = getCodeBase().getHost();
|
|
if (host != null && (host.length() > 0)) {
|
|
// add permission for downloaded jars to access host they were from
|
|
perms.add(new SocketPermission(host, "connect,accept"));
|
|
}
|
|
else if ( "file".equals(codesource.getLocation().getProtocol()) ) {
|
|
// if running locally add file permission
|
|
String path = codesource.getLocation().getFile().replace('/', File.separatorChar);
|
|
perms.add(new FilePermission(path, "read"));
|
|
}
|
|
|
|
} catch (Exception e) {
|
|
e.printStackTrace();
|
|
}
|
|
|
|
return perms;
|
|
}
|
|
|
|
// allow non lwjgl native to be found from cache directory
|
|
protected String findLibrary (String libname) {
|
|
String libPath = path + "natives" + File.separator + LWJGLUtil.mapLibraryName(libname);
|
|
|
|
if (new File(libPath).exists()) {
|
|
return libPath;
|
|
}
|
|
|
|
return super.findLibrary(libname);
|
|
}
|
|
};
|
|
|
|
debug_sleep(2000);
|
|
|
|
// unload natives loaded by a previous instance of this lwjgl applet
|
|
unloadNatives(path);
|
|
|
|
// add natives files path to native class path
|
|
System.setProperty("org.lwjgl.librarypath", path + "natives");
|
|
|
|
// Make sure jinput knows about the new path too
|
|
System.setProperty("net.java.games.input.librarypath", path + "natives");
|
|
|
|
// set the library path, useful for non lwjgl natives
|
|
System.setProperty("java.library.path", path + "natives");
|
|
|
|
// mark natives as loaded
|
|
natives_loaded = true;
|
|
}
|
|
|
|
/**
|
|
* Unload natives loaded by a different classloader.
|
|
*
|
|
* Due to limitations of the jvm, native files can only
|
|
* be loaded once and only be used by the classloader
|
|
* they were loaded from.
|
|
*
|
|
* Due to the way applets on plugin1 work, one jvm must
|
|
* be used for all applets. We need to use multiple
|
|
* classloaders in the same jvm due to LWJGL's static
|
|
* nature. In order to solve this we simply remove the
|
|
* natives from a previous classloader allowing a new
|
|
* classloader to use those natives in the same jvm.
|
|
*
|
|
* This method will only attempt to unload natives from a
|
|
* previous classloader if it detects that the natives have
|
|
* been loaded in the same jvm.
|
|
*
|
|
* @param nativePath directory where natives are stored
|
|
*/
|
|
private void unloadNatives(String nativePath) {
|
|
|
|
// check whether natives have been loaded into this jvm
|
|
if (!natives_loaded) {
|
|
return;
|
|
}
|
|
|
|
try {
|
|
Field field = ClassLoader.class.getDeclaredField("loadedLibraryNames");
|
|
field.setAccessible(true);
|
|
Vector libs = (Vector) field.get(getClass().getClassLoader());
|
|
|
|
String path = new File(nativePath).getCanonicalPath();
|
|
|
|
for (int i = 0; i < libs.size(); i++) {
|
|
String s = (String) libs.get(i);
|
|
|
|
// if a native from the nativePath directory is loaded, unload it
|
|
if (s.startsWith(path)) {
|
|
libs.remove(i);
|
|
i--;
|
|
}
|
|
}
|
|
} catch (Exception e) {
|
|
e.printStackTrace();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* replace the current applet with the lwjgl applet
|
|
* using AppletStub and initialise and start it
|
|
*/
|
|
protected void switchApplet() throws Exception {
|
|
|
|
setState(STATE_SWITCHING_APPLET);
|
|
percentage = 100;
|
|
|
|
debug_sleep(2000);
|
|
|
|
// set correct context classloader for lwjgl applet
|
|
Thread.currentThread().setContextClassLoader(classLoader);
|
|
|
|
Class appletClass = classLoader.loadClass(getParameter("al_main"));
|
|
lwjglApplet = (Applet) appletClass.newInstance();
|
|
|
|
lwjglApplet.setStub(this);
|
|
lwjglApplet.setSize(getWidth(), getHeight());
|
|
|
|
setLayout(new BorderLayout());
|
|
add(lwjglApplet);
|
|
validate();
|
|
|
|
setState(STATE_INITIALIZE_REAL_APPLET);
|
|
lwjglApplet.init();
|
|
|
|
setState(STATE_START_REAL_APPLET);
|
|
lwjglApplet.start();
|
|
}
|
|
|
|
/**
|
|
* This method will get the files sizes of the files to download.
|
|
* It wil further get the lastModified time of files
|
|
* and save it in a hashmap, if cache is enabled it will mark
|
|
* those files that have not changed since last download to not
|
|
* redownloaded.
|
|
*
|
|
* @param dir - location to read cache file from
|
|
* @throws Exception - if fails to get infomation
|
|
*/
|
|
protected void getJarInfo(File dir) throws Exception {
|
|
setState(STATE_CHECKING_CACHE);
|
|
|
|
filesLastModified = new HashMap<String, Long>();
|
|
|
|
// store file sizes and mark which files not to download
|
|
fileSizes = new int[urlList.length];
|
|
|
|
File timestampsFile = new File(dir, "timestamps");
|
|
|
|
// if timestamps file exists, load it
|
|
if (timestampsFile.exists()) {
|
|
setState(STATE_CHECKING_FOR_UPDATES);
|
|
filesLastModified = readHashMapFile(timestampsFile);
|
|
}
|
|
|
|
// calculate total size of jars to download
|
|
|
|
ExecutorService executorService = Executors.newFixedThreadPool(concurrentLookupThreads);
|
|
Queue<Future> requests = new LinkedList<Future>();
|
|
|
|
// create unique object to sync code in requests
|
|
final Object sync = new Integer(1);
|
|
|
|
for (int j = 0; j < urlList.length; j++) {
|
|
final int i = j;
|
|
|
|
Future request = executorService.submit(new Runnable() {
|
|
|
|
public void run() {
|
|
|
|
try {
|
|
|
|
URLConnection urlconnection = urlList[i].openConnection();
|
|
urlconnection.setDefaultUseCaches(false);
|
|
if (urlconnection instanceof HttpURLConnection) {
|
|
((HttpURLConnection) urlconnection).setRequestMethod("HEAD");
|
|
}
|
|
|
|
fileSizes[i] = urlconnection.getContentLength();
|
|
|
|
long lastModified = urlconnection.getLastModified();
|
|
String fileName = getFileName(urlList[i]);
|
|
|
|
if (cacheEnabled && lastModified != 0 && filesLastModified.containsKey(fileName)) {
|
|
long savedLastModified = filesLastModified.get(fileName);
|
|
|
|
// if lastModifed time is the same, don't redownload
|
|
if (savedLastModified == lastModified) {
|
|
fileSizes[i] = -2; // mark it to not redownload
|
|
}
|
|
}
|
|
|
|
if (fileSizes[i] >= 0) {
|
|
synchronized (sync) {
|
|
totalDownloadSize += fileSizes[i];
|
|
}
|
|
}
|
|
|
|
// put key and value in the hashmap
|
|
filesLastModified.put(fileName, lastModified);
|
|
|
|
} catch (Exception e) {
|
|
throw new RuntimeException("Failed to fetch information for " + urlList[i], e);
|
|
}
|
|
}});
|
|
|
|
requests.add(request);
|
|
}
|
|
|
|
while (!requests.isEmpty()) {
|
|
Iterator<Future> iterator = requests.iterator();
|
|
while (iterator.hasNext()) {
|
|
Future request = iterator.next();
|
|
if (request.isDone()) {
|
|
request.get(); // will throw an exception if request thrown an exception.
|
|
iterator.remove();
|
|
|
|
// update progress bar
|
|
percentage = 5 + (int) (10 * (urlList.length - requests.size()) / (float) urlList.length);
|
|
}
|
|
}
|
|
|
|
Thread.sleep(10);
|
|
}
|
|
|
|
executorService.shutdown();
|
|
}
|
|
|
|
/**
|
|
* Will download the jars from the server using the list of urls
|
|
* in urlList, while at the same time updating progress bar
|
|
*
|
|
* @param path location of the directory to save to
|
|
* @throws Exception if download fails
|
|
*/
|
|
protected void downloadJars(String path) throws Exception {
|
|
setState(STATE_DOWNLOADING);
|
|
|
|
URLConnection urlconnection;
|
|
|
|
int initialPercentage = percentage = 15;
|
|
int amountDownloaded = 0;
|
|
|
|
// download each jar
|
|
byte buffer[] = new byte[65536];
|
|
for (int i = 0; i < urlList.length; i++) {
|
|
|
|
// skip file if marked as -2 (already downloaded and not changed)
|
|
if (fileSizes[i] == -2) continue;
|
|
|
|
int unsuccessfulAttempts = 0;
|
|
int maxUnsuccessfulAttempts = 3;
|
|
boolean downloadFile = true;
|
|
|
|
String currentFile = getFileName(urlList[i]);
|
|
|
|
// download the jar a max of 3 times
|
|
while(downloadFile) {
|
|
downloadFile = false;
|
|
|
|
debug_sleep(2000);
|
|
|
|
try {
|
|
urlconnection = urlList[i].openConnection();
|
|
urlconnection.setUseCaches(false);
|
|
|
|
if (urlconnection instanceof HttpURLConnection) {
|
|
urlconnection.setRequestProperty("Cache-Control", "no-store,max-age=0,no-cache");
|
|
urlconnection.connect();
|
|
}
|
|
|
|
|
|
InputStream inputstream = getJarInputStream(currentFile, urlconnection);
|
|
FileOutputStream fos = new FileOutputStream(path + currentFile);
|
|
|
|
|
|
int bufferSize;
|
|
int currentDownload = 0;
|
|
|
|
long downloadStartTime = System.currentTimeMillis();
|
|
int downloadedAmount = 0;
|
|
String downloadSpeedMessage = "";
|
|
|
|
try {
|
|
while ((bufferSize = inputstream.read(buffer, 0, buffer.length)) != -1) {
|
|
debug_sleep(10);
|
|
fos.write(buffer, 0, bufferSize);
|
|
currentDownload += bufferSize;
|
|
|
|
int totalDownloaded = amountDownloaded + currentDownload;
|
|
percentage = initialPercentage + ((totalDownloaded * 45) / totalDownloadSize);
|
|
subtaskMessage = "Retrieving: " + currentFile + " " + ((totalDownloaded * 100) / totalDownloadSize) + "%";
|
|
|
|
downloadedAmount += bufferSize;
|
|
long timeLapse = System.currentTimeMillis() - downloadStartTime;
|
|
// update only if a second or more has passed
|
|
if (timeLapse >= 1000) {
|
|
// get kb/s, nice that bytes/millis is same as kilobytes/seconds
|
|
float downloadSpeed = (float) downloadedAmount / timeLapse;
|
|
// round to two decimal places
|
|
downloadSpeed = ((int)(downloadSpeed*100))/100f;
|
|
// set current speed message
|
|
downloadSpeedMessage = " - " + downloadSpeed + " KB/sec";
|
|
// reset downloaded amount
|
|
downloadedAmount = 0;
|
|
// reset start time
|
|
downloadStartTime = System.currentTimeMillis();
|
|
}
|
|
|
|
subtaskMessage += downloadSpeedMessage;
|
|
}
|
|
|
|
} finally {
|
|
inputstream.close();
|
|
fos.close();
|
|
}
|
|
|
|
// download complete, verify if it was successful
|
|
if (urlconnection instanceof HttpURLConnection) {
|
|
if (currentDownload == fileSizes[i]) {
|
|
// successful download
|
|
}
|
|
else if (fileSizes[i] <= 0 && currentDownload != 0) {
|
|
// If contentLength for fileSizes[i] <= 0, we don't know if the download
|
|
// is complete. We're going to guess the download is complete.
|
|
}
|
|
else {
|
|
throw new Exception("size mismatch on download of " + currentFile +
|
|
" expected " + fileSizes[i] + " got " + currentDownload);
|
|
}
|
|
}
|
|
|
|
// successful file download, update total amount downloaded
|
|
amountDownloaded += fileSizes[i];
|
|
|
|
} catch (Exception e) {
|
|
e.printStackTrace(); // output exception to console
|
|
|
|
// Failed to download the file
|
|
unsuccessfulAttempts++;
|
|
|
|
// download failed try again
|
|
if (unsuccessfulAttempts < maxUnsuccessfulAttempts) {
|
|
downloadFile = true;
|
|
Thread.sleep(100); // wait a bit before retrying
|
|
}
|
|
else {
|
|
// retry attempts exhasted, download failed
|
|
throw new Exception("failed to download " + currentFile +
|
|
" after " + maxUnsuccessfulAttempts + " attempts");
|
|
}
|
|
}
|
|
}
|
|
}
|
|
subtaskMessage = "";
|
|
}
|
|
|
|
/**
|
|
* Retrieves a jar files input stream. This method exists primarily to fix an Opera hang in getInputStream
|
|
* @param urlconnection connection to get input stream from
|
|
* @return InputStream or null if not possible
|
|
*/
|
|
protected InputStream getJarInputStream(final String currentFile, final URLConnection urlconnection) throws Exception {
|
|
final InputStream[] is = new InputStream[1];
|
|
|
|
// try to get the input stream 3 times.
|
|
// Wait at most 5 seconds before interrupting the thread
|
|
for (int j = 0; j < 3 && is[0] == null; j++) {
|
|
Thread t = new Thread() {
|
|
public void run() {
|
|
try {
|
|
is[0] = urlconnection.getInputStream();
|
|
} catch (IOException e) {
|
|
/* ignored */
|
|
}
|
|
}
|
|
};
|
|
t.setName("JarInputStreamThread");
|
|
t.start();
|
|
|
|
int iterationCount = 0;
|
|
while(is[0] == null && iterationCount++ < 5) {
|
|
try {
|
|
t.join(1000);
|
|
} catch (InterruptedException inte) {
|
|
/* ignored */
|
|
}
|
|
}
|
|
|
|
if(is[0] == null) {
|
|
try {
|
|
t.interrupt();
|
|
t.join();
|
|
} catch (InterruptedException inte) {
|
|
/* ignored */
|
|
}
|
|
}
|
|
}
|
|
|
|
if(is[0] == null) {
|
|
throw new Exception("Unable to get input stream for " + currentFile);
|
|
}
|
|
|
|
|
|
return is[0];
|
|
}
|
|
|
|
/**
|
|
* Extract LZMA File
|
|
* @param in Input path to pack file
|
|
* @param out output path to resulting file
|
|
* @throws Exception if any errors occur
|
|
*/
|
|
protected void extractLZMA(String in, String out) throws Exception {
|
|
|
|
File f = new File(in);
|
|
FileInputStream fileInputHandle = new FileInputStream(f);
|
|
|
|
// use reflection to avoid hard dependency
|
|
Class<?> clazz = Class.forName( "LZMA.LzmaInputStream" );
|
|
Constructor constructor = clazz.getDeclaredConstructor(InputStream.class);
|
|
InputStream inputHandle = (InputStream) constructor.newInstance(fileInputHandle);
|
|
|
|
OutputStream outputHandle = new FileOutputStream(out);
|
|
|
|
byte [] buffer = new byte [1<<14];
|
|
|
|
try {
|
|
int ret = inputHandle.read(buffer);
|
|
while (ret >= 1) {
|
|
outputHandle.write(buffer,0,ret);
|
|
ret = inputHandle.read(buffer);
|
|
}
|
|
} finally {
|
|
inputHandle.close();
|
|
outputHandle.close();
|
|
}
|
|
|
|
// delete LZMA file, as it is no longer needed
|
|
f.delete();
|
|
}
|
|
|
|
/**
|
|
* Extract GZip File
|
|
* @param in Input path to pack file
|
|
* @param out output path to resulting file
|
|
* @throws Exception if any errors occur
|
|
*/
|
|
protected void extractGZip(String in, String out) throws Exception {
|
|
|
|
File f = new File(in);
|
|
FileInputStream fileInputHandle = new FileInputStream(f);
|
|
|
|
InputStream inputHandle = new GZIPInputStream(fileInputHandle);
|
|
|
|
OutputStream outputHandle = new FileOutputStream(out);
|
|
|
|
try {
|
|
byte [] buffer = new byte [1<<14];
|
|
|
|
int ret = inputHandle.read(buffer);
|
|
while (ret >= 1) {
|
|
outputHandle.write(buffer,0,ret);
|
|
ret = inputHandle.read(buffer);
|
|
}
|
|
} finally {
|
|
inputHandle.close();
|
|
outputHandle.close();
|
|
}
|
|
|
|
// delete GZip file, as it is no longer needed
|
|
f.delete();
|
|
}
|
|
|
|
/**
|
|
* Extract Pack File
|
|
* @param in Input path to pack file
|
|
* @param out output path to resulting file
|
|
* @throws Exception if any errors occur
|
|
*/
|
|
protected void extractPack(String in, String out) throws Exception {
|
|
File f = new File(in);
|
|
FileOutputStream fostream = new FileOutputStream(out);
|
|
JarOutputStream jostream = new JarOutputStream(fostream);
|
|
|
|
try {
|
|
Pack200.Unpacker unpacker = Pack200.newUnpacker();
|
|
unpacker.unpack(f, jostream);
|
|
} finally {
|
|
jostream.close();
|
|
fostream.close();
|
|
}
|
|
|
|
// delete pack file as its no longer needed
|
|
f.delete();
|
|
}
|
|
|
|
/**
|
|
* Extract all jars from any lzma/gz/pack files
|
|
*
|
|
* @param path output path
|
|
* @throws Exception if any errors occur
|
|
*/
|
|
protected void extractJars(String path) throws Exception {
|
|
setState(STATE_EXTRACTING_PACKAGES);
|
|
|
|
float increment = (float) 10.0 / urlList.length;
|
|
// extract all gz, lzma, pack.gz and pack.lzma files
|
|
for (int i = 0; i < urlList.length; i++) {
|
|
|
|
// if file has not changed, skip it
|
|
if (fileSizes[i] == -2) continue;
|
|
|
|
percentage = 55 + (int) (increment * (i+1));
|
|
String filename = getFileName(urlList[i]);
|
|
|
|
if (filename.endsWith(".pack.lzma")) {
|
|
subtaskMessage = "Extracting: " + filename + " to " + replaceLast(filename, ".lzma", "");
|
|
debug_sleep(1000);
|
|
extractLZMA(path + filename, path + replaceLast(filename, ".lzma", ""));
|
|
|
|
subtaskMessage = "Extracting: " + replaceLast(filename, ".lzma", "") + " to " + replaceLast(filename, ".pack.lzma", "");
|
|
debug_sleep(1000);
|
|
extractPack(path + replaceLast(filename, ".lzma", ""), path + replaceLast(filename, ".pack.lzma", ""));
|
|
}
|
|
else if (filename.endsWith(".pack.gz")) {
|
|
subtaskMessage = "Extracting: " + filename + " to " + replaceLast(filename, ".gz", "");
|
|
debug_sleep(1000);
|
|
extractGZip(path + filename, path + replaceLast(filename, ".gz", ""));
|
|
|
|
subtaskMessage = "Extracting: " + replaceLast(filename, ".gz", "") + " to " + replaceLast(filename, ".pack.gz", "");
|
|
debug_sleep(1000);
|
|
extractPack(path + replaceLast(filename, ".gz", ""), path + replaceLast(filename, ".pack.gz", ""));
|
|
}
|
|
else if (filename.endsWith(".pack")) {
|
|
subtaskMessage = "Extracting: " + filename + " to " + replaceLast(filename, ".pack", "");
|
|
debug_sleep(1000);
|
|
extractPack(path + filename, path + replaceLast(filename, ".pack", ""));
|
|
}
|
|
else if (filename.endsWith(".lzma")) {
|
|
subtaskMessage = "Extracting: " + filename + " to " + replaceLast(filename, ".lzma", "");
|
|
debug_sleep(1000);
|
|
extractLZMA(path + filename, path + replaceLast(filename, ".lzma", ""));
|
|
}
|
|
else if (filename.endsWith(".gz")) {
|
|
subtaskMessage = "Extracting: " + filename + " to " + replaceLast(filename, ".gz", "");
|
|
debug_sleep(1000);
|
|
extractGZip(path + filename, path + replaceLast(filename, ".gz", ""));
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* This method will extract all file from the native jar and extract them
|
|
* to the subdirectory called "natives" in the local path, will also check
|
|
* to see if the native jar files is signed properly
|
|
*
|
|
* @param path base folder containing all downloaded jars
|
|
* @throws Exception if it fails to extract files
|
|
*/
|
|
protected void extractNatives(String path) throws Exception {
|
|
|
|
setState(STATE_EXTRACTING_PACKAGES);
|
|
|
|
float percentageParts = 15f/nativeJarCount; // parts for each native jar from 15%
|
|
|
|
// create native folder
|
|
File nativeFolder = new File(path + "natives");
|
|
if (!nativeFolder.exists()) {
|
|
nativeFolder.mkdir();
|
|
}
|
|
|
|
// get the current AppletLoader certificates to compare against certificates of the native files
|
|
Certificate[] certificate = getCurrentCertificates();
|
|
|
|
for (int i = urlList.length - nativeJarCount; i < urlList.length; i++) {
|
|
|
|
// if a new native jar was not downloaded, no extracting needed
|
|
if (fileSizes[i] == -2) {
|
|
continue;
|
|
}
|
|
|
|
// get name of jar file with natives from urlList
|
|
String nativeJar = getJarName(urlList[i]);
|
|
|
|
// open jar file
|
|
JarFile jarFile = new JarFile(path + nativeJar, true);
|
|
|
|
// get list of files in jar
|
|
Enumeration entities = jarFile.entries();
|
|
|
|
totalSizeExtract = 0;
|
|
int jarNum = i - (urlList.length - nativeJarCount); // used for progressbar
|
|
|
|
// calculate the size of the files to extract for progress bar
|
|
while (entities.hasMoreElements()) {
|
|
JarEntry entry = (JarEntry) entities.nextElement();
|
|
|
|
// skip directories and anything in directories
|
|
// conveniently ignores the manifest
|
|
if (entry.isDirectory() || entry.getName().indexOf('/') != -1) {
|
|
continue;
|
|
}
|
|
totalSizeExtract += entry.getSize();
|
|
}
|
|
|
|
currentSizeExtract = 0;
|
|
|
|
// reset point to begining by getting list of file again
|
|
entities = jarFile.entries();
|
|
|
|
// extract all files from the jar
|
|
while (entities.hasMoreElements()) {
|
|
JarEntry entry = (JarEntry) entities.nextElement();
|
|
|
|
// skip directories and anything in directories
|
|
// conveniently ignores the manifest
|
|
if (entry.isDirectory() || entry.getName().indexOf('/') != -1) {
|
|
continue;
|
|
}
|
|
|
|
// check if native file already exists if so delete it to make room for new one
|
|
// useful when using the reload button on the browser
|
|
File f = new File(path + "natives" + File.separator + entry.getName());
|
|
if (f.exists()) {
|
|
if (!f.delete()) {
|
|
continue; // unable to delete file, it is in use, skip extracting it
|
|
}
|
|
}
|
|
|
|
debug_sleep(1000);
|
|
|
|
InputStream in = jarFile.getInputStream(jarFile.getEntry(entry.getName()));
|
|
OutputStream out = new FileOutputStream(path + "natives" + File.separator + entry.getName());
|
|
|
|
try {
|
|
int bufferSize;
|
|
byte buffer[] = new byte[65536];
|
|
|
|
while ((bufferSize = in.read(buffer, 0, buffer.length)) != -1) {
|
|
debug_sleep(10);
|
|
out.write(buffer, 0, bufferSize);
|
|
currentSizeExtract += bufferSize;
|
|
|
|
// update progress bar
|
|
percentage = 65 + (int)(percentageParts * (jarNum + currentSizeExtract/(float)totalSizeExtract));
|
|
subtaskMessage = "Extracting: " + entry.getName() + " " + ((currentSizeExtract * 100) / totalSizeExtract) + "%";
|
|
}
|
|
} finally {
|
|
in.close();
|
|
out.close();
|
|
}
|
|
|
|
// validate the certificate for the native file being extracted
|
|
if (!certificatesMatch(certificate, entry.getCertificates())) {
|
|
f.delete(); // delete extracted native as its certificates doesn't match
|
|
throw new Exception("The certificate(s) in " + nativeJar + " do not match the AppletLoader!");
|
|
}
|
|
}
|
|
subtaskMessage = "";
|
|
|
|
jarFile.close();
|
|
|
|
// delete native jar as it is no longer needed
|
|
File f = new File(path + nativeJar);
|
|
f.delete();
|
|
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Compare two certificate chains to see if they match
|
|
*
|
|
* @param certs1 first chain of certificates
|
|
* @param certs2 second chain of certificates
|
|
*
|
|
* @return true if the certificate chains are the same
|
|
*/
|
|
protected static boolean certificatesMatch(Certificate[] certs1, Certificate[] certs2) throws Exception {
|
|
if (certs1 == null || certs2 == null) {
|
|
return false;
|
|
}
|
|
|
|
if (certs1.length != certs2.length) {
|
|
System.out.println("Certificate chain differs in length [" + certs1.length + " vs " + certs2.length + "]!");
|
|
return false;
|
|
}
|
|
|
|
for (int i = 0; i < certs1.length; i++) {
|
|
if (!certs1[i].equals(certs2[i])) {
|
|
System.out.println("Certificate mismatch found!");
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Returns the current certificate chain of the AppletLoader
|
|
*
|
|
* @return - certificate chain of AppletLoader
|
|
*/
|
|
protected static Certificate[] getCurrentCertificates() throws Exception {
|
|
// get the current certificate to compare against native files
|
|
Certificate[] certificate = AppletLoader.class.getProtectionDomain().getCodeSource().getCertificates();
|
|
|
|
// workaround for bug where cached applet loader does not have certificates!?
|
|
if (certificate == null) {
|
|
URL location = AppletLoader.class.getProtectionDomain().getCodeSource().getLocation();
|
|
|
|
// manually load the certificate
|
|
JarURLConnection jurl = (JarURLConnection) (new URL("jar:" + location.toString() + "!/org/lwjgl/util/applet/AppletLoader.class").openConnection());
|
|
jurl.setDefaultUseCaches(true);
|
|
certificate = jurl.getCertificates();
|
|
jurl.setDefaultUseCaches(false);
|
|
}
|
|
|
|
return certificate;
|
|
}
|
|
|
|
/**
|
|
* Check and validate jars which will be loaded into the classloader to make
|
|
* sure that they are not corrupt. This ensures corrupt files are never marked
|
|
* as successful downloadeds by the cache system.
|
|
*
|
|
* @param path - where the jars are stored
|
|
* @throws Exception if a corrupt jar is found
|
|
*/
|
|
protected void validateJars(String path) throws Exception {
|
|
|
|
setState(STATE_VALIDATING_PACKAGES);
|
|
|
|
percentage = 80;
|
|
|
|
float percentageParts = 10f / urlList.length; // percentage for each file out of 10%
|
|
|
|
for (int i = 0; i < urlList.length - nativeJarCount; i++) {
|
|
|
|
debug_sleep(1000);
|
|
|
|
// if file not downloaded, no need to validate again
|
|
if (fileSizes[i] == -2) continue;
|
|
|
|
subtaskMessage = "Validating: " + getJarName(urlList[i]);
|
|
|
|
File file = new File(path, getJarName(urlList[i]));
|
|
if (!isZipValid(file)) {
|
|
throw new Exception("The file " + getJarName(urlList[i]) + " is corrupt!");
|
|
}
|
|
|
|
percentage = 80 + (int)(percentageParts * i);
|
|
}
|
|
|
|
subtaskMessage = "";
|
|
}
|
|
|
|
/**
|
|
* This method will check if a zip file is valid by running through it
|
|
* and checking for any corruption and CRC failures
|
|
*
|
|
* @param file - zip file to test
|
|
* @return boolean - runs false if the file is corrupt
|
|
*/
|
|
protected boolean isZipValid(File file) {
|
|
|
|
try {
|
|
ZipFile zipFile = new ZipFile(file);
|
|
|
|
try {
|
|
Enumeration e = zipFile.entries();
|
|
|
|
byte[] buffer = new byte[4096];
|
|
|
|
while(e.hasMoreElements()) {
|
|
ZipEntry zipEntry = (ZipEntry) e.nextElement();
|
|
|
|
CRC32 crc = new CRC32();
|
|
|
|
BufferedInputStream bis = new BufferedInputStream(zipFile.getInputStream(zipEntry));
|
|
CheckedInputStream cis = new CheckedInputStream(bis, crc);
|
|
|
|
while(cis.read(buffer, 0, buffer.length) != -1) {
|
|
// scroll through zip entry
|
|
}
|
|
|
|
if (crc.getValue() != zipEntry.getCrc()) {
|
|
return false; // CRC match failed, corrupt zip
|
|
}
|
|
}
|
|
|
|
return true; // valid zip file
|
|
} finally {
|
|
zipFile.close();
|
|
}
|
|
} catch (IOException e) {
|
|
e.printStackTrace();
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Get Image from path provided
|
|
*
|
|
* @param s location of the image
|
|
* @return the Image file
|
|
*/
|
|
protected Image getImage(String s) {
|
|
|
|
// if s is "" then don't load an image
|
|
if (s.length() == 0) return null;
|
|
|
|
Image image = null;
|
|
|
|
try {
|
|
image = getImage(new URL(getCodeBase(), s));
|
|
} catch (Exception e) {
|
|
/* */
|
|
}
|
|
|
|
// if image failed to load, try another method
|
|
if (image == null) {
|
|
image = getImage(Thread.currentThread().getContextClassLoader().getResource(s));
|
|
}
|
|
|
|
// if image loaded sucessfully return it
|
|
if (image != null) {
|
|
return image;
|
|
}
|
|
|
|
// show error as image could not be loaded
|
|
fatalErrorOccured("Unable to load the logo/progressbar image: " + s, null);
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* Get Image from path provided
|
|
*
|
|
* @param url location of the image
|
|
* @return the Image file
|
|
*/
|
|
public Image getImage(URL url) {
|
|
try {
|
|
MediaTracker tracker = new MediaTracker(this);
|
|
|
|
Image image = super.getImage(url);
|
|
|
|
// wait for image to load
|
|
tracker.addImage(image, 0);
|
|
tracker.waitForAll();
|
|
|
|
// if no errors return image
|
|
if (!tracker.isErrorAny()) {
|
|
return image;
|
|
}
|
|
} catch (Exception e) {
|
|
/* */
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* Get jar name from URL.
|
|
*
|
|
* @param url Get jar file name from this url
|
|
* @return file name as string
|
|
*/
|
|
protected String getJarName(URL url) {
|
|
String fileName = url.getFile();
|
|
|
|
if (fileName.endsWith(".pack.lzma")) {
|
|
fileName = replaceLast(fileName, ".pack.lzma", "");
|
|
} else if (fileName.endsWith(".pack.gz")) {
|
|
fileName = replaceLast(fileName, ".pack.gz", "");
|
|
} else if (fileName.endsWith(".pack")) {
|
|
fileName = replaceLast(fileName, ".pack", "");
|
|
} else if (fileName.endsWith(".lzma")) {
|
|
fileName = replaceLast(fileName, ".lzma", "");
|
|
} else if (fileName.endsWith(".gz")) {
|
|
fileName = replaceLast(fileName, ".gz", "");
|
|
}
|
|
|
|
return fileName.substring(fileName.lastIndexOf('/') + 1);
|
|
}
|
|
|
|
/**
|
|
* Get file name portion of URL.
|
|
*
|
|
* @param url Get file name from this url
|
|
* @return file name as string
|
|
*/
|
|
protected String getFileName(URL url) {
|
|
String fileName = url.getFile();
|
|
return fileName.substring(fileName.lastIndexOf('/') + 1);
|
|
}
|
|
|
|
/**
|
|
* Retrieves the color
|
|
*
|
|
* @param param Color to load
|
|
* @param defaultColor Default color to use if no color to load
|
|
* @return Color to use
|
|
*/
|
|
protected Color getColor(String param, Color defaultColor) {
|
|
String color = getParameter(param);
|
|
|
|
if (color == null) return defaultColor;
|
|
|
|
// Check if RGB format
|
|
if (color.indexOf(",") != -1) {
|
|
StringTokenizer st = new StringTokenizer(color, ",");
|
|
|
|
// We've got three components for the color
|
|
try {
|
|
return new Color(Integer.parseInt(st.nextToken().trim()),
|
|
Integer.parseInt(st.nextToken().trim()),
|
|
Integer.parseInt(st.nextToken().trim()));
|
|
} catch (Exception e) {
|
|
// failed to parse
|
|
return defaultColor;
|
|
}
|
|
}
|
|
|
|
// Check & decode if the color is in hexadecimal color format (i.e. #808000)
|
|
try {
|
|
return Color.decode(color);
|
|
} catch (NumberFormatException e) {
|
|
// ignore exception
|
|
}
|
|
|
|
// Get the color by name if it exists
|
|
try {
|
|
return (Color)Color.class.getField(color).get(null);
|
|
} catch (Exception e) {
|
|
return defaultColor;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Replaces the last occurrence of the specified target substring with
|
|
* the specified replacement string in a string.
|
|
*
|
|
* @param original - String to search
|
|
* @param target - substring to find
|
|
* @param replacement - what to replace target substring with
|
|
* @return - return the modified string, if target substring not found return original string
|
|
*/
|
|
public String replaceLast(String original, String target, String replacement) {
|
|
int index = original.lastIndexOf(target);
|
|
|
|
if(index == -1) {
|
|
return original;
|
|
}
|
|
|
|
return original.substring(0, index) + replacement + original.substring(index + target.length());
|
|
}
|
|
|
|
/**
|
|
* Retrieves the String value for the parameter
|
|
* @param name Name of parameter
|
|
* @param defaultValue default value to return if no such parameter
|
|
* @return value of parameter or defaultValue
|
|
*/
|
|
protected String getStringParameter(String name, String defaultValue) {
|
|
String parameter = getParameter(name);
|
|
if (parameter != null) {
|
|
return parameter;
|
|
}
|
|
return defaultValue;
|
|
}
|
|
|
|
/**
|
|
* Retrieves the boolean value for the parameter
|
|
* @param name Name of parameter
|
|
* @param defaultValue default value to return if no such parameter
|
|
* @return value of parameter or defaultValue
|
|
*/
|
|
protected boolean getBooleanParameter(String name, boolean defaultValue) {
|
|
String parameter = getParameter(name);
|
|
if (parameter != null) {
|
|
return Boolean.parseBoolean(parameter);
|
|
}
|
|
return defaultValue;
|
|
}
|
|
|
|
/**
|
|
* Retrieves the int value for the applet
|
|
* @param name Name of parameter
|
|
* @param defaultValue default value to return if no such parameter
|
|
* @return value of parameter or defaultValue
|
|
*/
|
|
protected int getIntParameter(String name, int defaultValue) {
|
|
String parameter = getParameter(name);
|
|
if (parameter != null) {
|
|
return Integer.parseInt(parameter);
|
|
}
|
|
return defaultValue;
|
|
}
|
|
|
|
/**
|
|
* Sets the error message and print debug information
|
|
*
|
|
* @param error Error message to print
|
|
*/
|
|
protected void fatalErrorOccured(String error, Exception e) {
|
|
fatalError = true;
|
|
|
|
if (minimumJreNotFound) {
|
|
errorMessage = minimumJREMessage;
|
|
errorMessage[errorMessage.length-1] = error;
|
|
}
|
|
else if (certificateRefused) {
|
|
errorMessage = certificateRefusedMessage;
|
|
}
|
|
else {
|
|
errorMessage = genericErrorMessage;
|
|
errorMessage[errorMessage.length-1] = error;
|
|
}
|
|
|
|
System.out.println(error);
|
|
if(e != null) {
|
|
System.out.println(e.getMessage());
|
|
System.out.println(generateStacktrace(e));
|
|
}
|
|
repaint();
|
|
}
|
|
|
|
/**
|
|
* set the state of applet loader
|
|
* @param state new state of applet loader
|
|
* */
|
|
protected void setState(int state) {
|
|
this.state = state;
|
|
if(debugMode) {
|
|
System.out.println(getDescriptionForState());
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Utility method for sleeping
|
|
* Will only really sleep if debug has been enabled
|
|
* @param ms milliseconds to sleep
|
|
*/
|
|
protected void debug_sleep(long ms) {
|
|
if(debugMode) {
|
|
sleep(ms);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Utility method for sleeping
|
|
* @param ms milliseconds to sleep
|
|
*/
|
|
protected void sleep(long ms) {
|
|
try {
|
|
Thread.sleep(ms);
|
|
} catch (Exception e) {
|
|
/* ignored */
|
|
}
|
|
}
|
|
|
|
}
|