2007-06-10 16:30:03 -04:00
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/*
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2008-04-07 14:36:09 -04:00
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* Copyright (c) 2002-2008 LWJGL Project
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2007-06-10 16:30:03 -04:00
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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 java.applet.Applet;
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import java.applet.AppletStub;
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2007-10-24 17:55:39 -04:00
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import java.awt.BorderLayout;
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2007-06-10 16:30:03 -04:00
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import java.awt.Color;
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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.Toolkit;
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import java.io.DataInputStream;
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import java.io.DataOutputStream;
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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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2007-10-24 17:25:54 -04:00
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import java.io.IOException;
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2007-06-10 16:30:03 -04:00
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import java.io.InputStream;
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import java.io.OutputStream;
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2008-04-18 18:34:11 -04:00
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import java.lang.reflect.Constructor;
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2007-06-10 16:30:03 -04:00
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import java.lang.reflect.Method;
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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.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.StringTokenizer;
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import java.util.jar.JarEntry;
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import java.util.jar.JarFile;
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2008-04-18 18:34:11 -04:00
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import java.util.jar.JarOutputStream;
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import java.util.jar.Pack200;
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2007-06-10 16:30:03 -04:00
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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 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_logo - [String Path of of the logo resource to paint while loading.</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.</li>
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* <li>al_jars - [String] Comma seperated list of jars to download.</li>
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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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* </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_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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* <li>al_bgcolor - [String] Hex formated color to use as background. <i>Default: ffffff</i>.</li>
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* <li>al_fgcolor - [String] Hex formated color to use as foreground. <i>Default: 000000</i>.</li>
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* <li>al_errorcolor - [String] Hex formated color to use as foreground color on error. <i>Default: ff0000</i>.</li>
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* <li>al_debug - [boolean] Whether to enable debug mode. <i>Default: false</i>.</li>
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* </ul>
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* </p>
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* @author kappaOne
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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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public class AppletLoader extends Applet implements Runnable, AppletStub {
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2008-04-18 18:34:11 -04:00
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2007-06-10 16:30:03 -04:00
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/** initializing */
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public static final int STATE_INIT = 1;
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/** determining which packages that are required */
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public static final int STATE_DETERMINING_PACKAGES = 2;
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/** checking for already downloaded files */
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public static final int STATE_CHECKING_CACHE = 3;
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/** downloading packages */
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public static final int STATE_DOWNLOADING = 4;
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/** extracting packages */
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public static final int STATE_EXTRACTING_PACKAGES = 5;
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/** updating the classpath */
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public static final int STATE_UPDATING_CLASSPATH = 6;
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/** switching to real applet */
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public static final int STATE_SWITCHING_APPLET = 7;
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/** initializing real applet */
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public static final int STATE_INITIALIZE_REAL_APPLET = 8;
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/** stating real applet */
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public static final int STATE_START_REAL_APPLET = 9;
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/** done */
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public static final int STATE_DONE = 10;
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/** used to calculate length of progress bar */
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protected int percentage;
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/** current size of download in bytes */
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protected int currentSizeDownload;
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/** total size of download in bytes */
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protected int totalSizeDownload;
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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;
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/** progressbar to render while loading */
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protected Image progressbar;
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/** offscreen image used */
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protected Image offscreen;
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/** background color of applet */
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protected Color bgColor = Color.white;
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/** Color to write errors in */
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protected Color errorColor = Color.red;
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/** color to write forground 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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/** actual thread that does the loading */
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protected Thread loaderThread;
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/** animation thread that renders our loaderscreen 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 a fatal error occured */
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protected boolean fatalError;
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/** fatal error that occured */
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protected String fatalErrorDescription;
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/** whether we're running in debug mode */
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protected boolean debugMode;
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2008-04-10 17:02:04 -04:00
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/** whether to prepend host to cache path */
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protected boolean prependHost;
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2007-06-10 16:30:03 -04:00
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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 int state = STATE_INIT;
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2008-04-18 18:34:11 -04:00
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/** whether lzma is supported */
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protected boolean lzmaSupported = false;
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/** whether pack200 is supported */
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protected boolean pack200Supported = false;
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2007-06-10 16:30:03 -04:00
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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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"Plese contact support to resolve this issue.",
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"<placeholder for error message>"};
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2007-06-11 14:10:19 -04:00
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/** whether a certificate refused error occured */
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protected boolean certificateRefused;
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/** error message to display if user refuses to accept certicate*/
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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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2007-06-10 16:30:03 -04:00
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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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2007-10-24 17:55:39 -04:00
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state = STATE_INIT;
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2007-06-10 16:30:03 -04:00
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// sanity check
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String[] requiredArgs = {"al_main", "al_logo", "al_progressbar", "al_jars"};
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for(int i=0; i<requiredArgs.length; i++) {
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if(getParameter(requiredArgs[i]) == null) {
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fatalErrorOccured("missing required applet parameter: " + requiredArgs[i]);
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return;
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}
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}
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// whether to run in debug mode
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debugMode = getBooleanParameter("al_debug", false);
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2008-04-10 17:02:04 -04:00
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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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2007-06-10 16:30:03 -04:00
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// get colors of applet
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bgColor = getColor("al_bgcolor", Color.white);
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2007-10-24 17:55:39 -04:00
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setBackground(bgColor);
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2007-06-10 16:30:03 -04:00
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fgColor = getColor("al_fgcolor", Color.black);
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errorColor = getColor("al_errorcolor", Color.red);
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// load logos
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logo = getImage("/" + getParameter("al_logo"));
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progressbar = getImage("/" + getParameter("al_progressbar"));
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//sanity check
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if(logo == null || progressbar == null) {
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fatalErrorOccured("Unable to load logo and progressbar images");
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}
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2008-04-18 18:34:11 -04:00
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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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2007-06-10 16:30:03 -04:00
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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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2008-04-22 16:32:32 -04:00
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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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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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2007-06-10 16:30:03 -04:00
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}
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2008-04-22 16:32:32 -04:00
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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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2007-06-10 16:30:03 -04:00
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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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super.stop();
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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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progressbar = null;
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logo = null;
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super.destroy();
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}
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/**
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* Retrieves the applet that has been loaded. Usefull 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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2007-10-20 17:20:00 -04:00
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/**
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* Transfers the call of AppletResize from the stub to the lwjglApplet.
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2007-06-10 16:30:03 -04:00
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*/
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public void appletResize(int width, int height) {
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2007-10-20 17:20:00 -04:00
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resize(width, height);
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2007-06-10 16:30:03 -04:00
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}
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/*
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* @see java.awt.Container#update(java.awt.Graphics)
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*/
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public final void update(Graphics g) {
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paint(g);
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}
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/*
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* @see java.awt.Container#paint(java.awt.Graphics)
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*/
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2007-06-11 14:10:19 -04:00
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public synchronized void paint(Graphics g) {
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2007-06-10 16:30:03 -04:00
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2007-10-20 17:20:00 -04:00
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// don't paint loader if applet loaded
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if(state == STATE_DONE) {
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2007-06-10 16:30:03 -04:00
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return;
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}
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2008-04-20 15:55:55 -04:00
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2007-06-10 16:30:03 -04:00
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// create offscreen if missing
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if (offscreen == null) {
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offscreen = createImage(getWidth(), getHeight());
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}
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|
// draw everything onto an image before drawing to avoid flicker
|
|
|
|
Graphics og = offscreen.getGraphics();
|
|
|
|
FontMetrics fm = og.getFontMetrics();
|
|
|
|
|
|
|
|
// set background color
|
|
|
|
og.setColor(bgColor);
|
|
|
|
og.fillRect(0, 0, getWidth(), getHeight());
|
|
|
|
|
|
|
|
// get logo position so its in the middle of applet
|
|
|
|
int x = 0, y = 0;
|
|
|
|
|
|
|
|
if(logo != null && !fatalError) {
|
|
|
|
x = (getWidth() - logo.getWidth(this)) / 2;
|
|
|
|
y = (getHeight() - logo.getHeight(this)) / 2;
|
|
|
|
}
|
|
|
|
|
|
|
|
og.setColor(fgColor);
|
2007-06-11 14:10:19 -04:00
|
|
|
String message = getDescriptionForState();
|
2007-06-10 16:30:03 -04:00
|
|
|
|
2007-06-11 14:10:19 -04:00
|
|
|
// if we had a failure of some sort, notify the user
|
2007-06-10 16:30:03 -04:00
|
|
|
if (fatalError) {
|
2007-06-11 14:10:19 -04:00
|
|
|
String[] errorMessage = (certificateRefused) ? certificateRefusedMessage : genericErrorMessage;
|
|
|
|
|
2007-10-13 03:37:39 -04:00
|
|
|
if (!certificateRefused) {
|
|
|
|
errorMessage[errorMessage.length-1] = fatalErrorDescription;
|
|
|
|
}
|
|
|
|
|
2007-06-11 14:10:19 -04:00
|
|
|
for(int i=0; i<errorMessage.length; i++) {
|
|
|
|
int messageX = (getWidth() - fm.stringWidth(errorMessage[i])) / 2;
|
|
|
|
int messageY = (getHeight() - (fm.getHeight() * errorMessage.length)) / 2;
|
2007-06-10 16:30:03 -04:00
|
|
|
|
|
|
|
og.setColor(errorColor);
|
2007-06-11 14:10:19 -04:00
|
|
|
og.drawString(errorMessage[i], messageX, messageY + i*fm.getHeight());
|
2007-06-10 16:30:03 -04:00
|
|
|
}
|
|
|
|
} else {
|
|
|
|
og.setColor(fgColor);
|
|
|
|
|
|
|
|
// draw logo
|
|
|
|
og.drawImage(logo, x, y, null);
|
|
|
|
|
|
|
|
// draw message
|
|
|
|
int messageX = (getWidth() - fm.stringWidth(message)) / 2;
|
|
|
|
int messageY = y + logo.getHeight(null) + 20;
|
|
|
|
og.drawString(message, messageX, messageY);
|
|
|
|
|
|
|
|
// draw subtaskmessage, if any
|
|
|
|
if(subtaskMessage.length() > 0) {
|
|
|
|
messageX = (getWidth() - fm.stringWidth(subtaskMessage)) / 2;
|
|
|
|
og.drawString(subtaskMessage, messageX, messageY+20);
|
|
|
|
}
|
|
|
|
|
|
|
|
// draw loading bar, clipping it depending on percentage done
|
|
|
|
int barSize = (progressbar.getWidth(this) * percentage) / 100;
|
|
|
|
og.clipRect(0, 0, x + barSize, getHeight());
|
|
|
|
og.drawImage(progressbar, x, y, null);
|
|
|
|
}
|
|
|
|
|
|
|
|
og.dispose();
|
|
|
|
|
|
|
|
// finally draw it all
|
|
|
|
g.drawImage(offscreen, 0, 0, null);
|
|
|
|
}
|
|
|
|
|
2007-06-11 14:10:19 -04:00
|
|
|
/**
|
|
|
|
* @return string describing the state of the loader
|
|
|
|
*/
|
|
|
|
protected String getDescriptionForState() {
|
|
|
|
switch (state) {
|
|
|
|
case STATE_INIT:
|
|
|
|
return "Initializing loader";
|
|
|
|
case STATE_DETERMINING_PACKAGES:
|
|
|
|
return "Determining packages to load";
|
|
|
|
case STATE_CHECKING_CACHE:
|
|
|
|
return "Checking cache for existing files";
|
|
|
|
case STATE_DOWNLOADING:
|
|
|
|
return "Downloading packages";
|
|
|
|
case STATE_EXTRACTING_PACKAGES:
|
|
|
|
return "Extracting downloaded 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";
|
|
|
|
}
|
|
|
|
}
|
2008-04-18 18:34:11 -04:00
|
|
|
|
|
|
|
/**
|
|
|
|
* 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.replaceAll(".pack", "");
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!lzmaSupported) {
|
|
|
|
file = file.replaceAll(".lzma", "");
|
|
|
|
}
|
|
|
|
return file;
|
|
|
|
}
|
2007-06-11 14:10:19 -04:00
|
|
|
|
2007-06-10 16:30:03 -04:00
|
|
|
/**
|
|
|
|
* 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
|
|
|
|
*/
|
2007-06-11 14:10:19 -04:00
|
|
|
protected void loadJarURLs() throws Exception {
|
2007-06-10 16:30:03 -04:00
|
|
|
state = STATE_DETERMINING_PACKAGES;
|
2007-06-11 14:10:19 -04:00
|
|
|
|
|
|
|
// jars to load
|
|
|
|
String jarList = getParameter("al_jars");
|
|
|
|
|
2008-04-18 18:34:11 -04:00
|
|
|
jarList = trimExtensionByCapabilities(jarList);
|
|
|
|
|
2007-06-10 16:30:03 -04:00
|
|
|
StringTokenizer jar = new StringTokenizer(jarList, ", ");
|
|
|
|
|
|
|
|
int jarCount = jar.countTokens() + 1;
|
|
|
|
|
|
|
|
urlList = new URL[jarCount];
|
|
|
|
|
2007-06-11 14:10:19 -04:00
|
|
|
URL path = getCodeBase();
|
2007-06-10 16:30:03 -04:00
|
|
|
|
2007-06-11 14:10:19 -04:00
|
|
|
// set jars urls
|
|
|
|
for (int i = 0; i < jarCount - 1; i++) {
|
|
|
|
urlList[i] = new URL(path, jar.nextToken());
|
|
|
|
}
|
2007-06-10 16:30:03 -04:00
|
|
|
|
2007-06-11 14:10:19 -04:00
|
|
|
// native jar url
|
|
|
|
String osName = System.getProperty("os.name");
|
|
|
|
String nativeJar = null;
|
|
|
|
|
|
|
|
if (osName.startsWith("Win")) {
|
|
|
|
nativeJar = getParameter("al_windows");
|
|
|
|
} else if (osName.startsWith("Linux") || osName.startsWith("FreeBSD") || osName.startsWith("SunOS")) {
|
|
|
|
nativeJar = getParameter("al_linux");
|
|
|
|
} else if (osName.startsWith("Mac")) {
|
|
|
|
nativeJar = getParameter("al_mac");
|
|
|
|
} else {
|
|
|
|
fatalErrorOccured("OS (" + osName + ") not supported");
|
|
|
|
}
|
2007-06-10 16:30:03 -04:00
|
|
|
|
2007-06-11 14:10:19 -04:00
|
|
|
if (nativeJar == null) {
|
|
|
|
fatalErrorOccured("no lwjgl natives files found");
|
|
|
|
} else {
|
2008-04-18 18:34:11 -04:00
|
|
|
nativeJar = trimExtensionByCapabilities(nativeJar);
|
2007-06-11 14:10:19 -04:00
|
|
|
urlList[jarCount - 1] = new URL(path, nativeJar);
|
2007-06-10 16:30:03 -04:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* 4 steps
|
|
|
|
*
|
|
|
|
* 1) check version of applet and decide whether to download jars
|
|
|
|
* 2) download the jars
|
|
|
|
* 3) extract natives
|
|
|
|
* 4) add to jars to class path
|
|
|
|
* 5) switch applets
|
|
|
|
*
|
|
|
|
*/
|
|
|
|
public void run() {
|
|
|
|
state = STATE_CHECKING_CACHE;
|
|
|
|
|
2007-10-24 17:25:54 -04:00
|
|
|
percentage = 5;
|
2007-06-10 16:30:03 -04:00
|
|
|
|
2008-04-20 15:55:55 -04:00
|
|
|
try {
|
|
|
|
debug_sleep(2000);
|
2007-06-10 16:30:03 -04:00
|
|
|
|
2007-06-11 14:10:19 -04:00
|
|
|
// parse the urls for the jars into the url list
|
|
|
|
loadJarURLs();
|
|
|
|
|
2007-06-10 16:30:03 -04:00
|
|
|
// get path where applet will be stored
|
|
|
|
String path = (String) AccessController.doPrivileged(new PrivilegedExceptionAction() {
|
|
|
|
public Object run() throws Exception {
|
2008-04-10 17:02:04 -04:00
|
|
|
|
|
|
|
// 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 System.getProperty("java.io.tmpdir") + File.separator + codebase + getParameter("al_title") + File.separator;
|
2007-06-10 16:30:03 -04:00
|
|
|
}
|
|
|
|
});
|
|
|
|
|
|
|
|
File dir = new File(path);
|
|
|
|
|
|
|
|
// create directory
|
|
|
|
if (!dir.exists()) {
|
2008-04-10 17:02:04 -04:00
|
|
|
dir.mkdirs();
|
2007-06-10 16:30:03 -04:00
|
|
|
}
|
|
|
|
dir = new File(dir, "version");
|
|
|
|
|
|
|
|
// if applet already available don't download anything
|
|
|
|
boolean cacheAvailable = false;
|
|
|
|
|
|
|
|
// version of applet
|
|
|
|
String version = getParameter("al_version");
|
|
|
|
float latestVersion = 0;
|
|
|
|
|
|
|
|
// if applet version specifed, check if you have latest version of applet
|
|
|
|
if (version != null) {
|
|
|
|
|
|
|
|
latestVersion = Float.parseFloat(version);
|
|
|
|
|
|
|
|
// if version file exists
|
|
|
|
if (dir.exists()) {
|
|
|
|
// compare to new version
|
|
|
|
if (latestVersion <= readVersionFile(dir)) {
|
|
|
|
cacheAvailable = true;
|
|
|
|
percentage = 90;
|
2008-04-20 15:55:55 -04:00
|
|
|
debug_sleep(2000);
|
2007-06-10 16:30:03 -04:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// if jars not available or need updating download them
|
|
|
|
if (!cacheAvailable) {
|
|
|
|
// downloads jars from the server
|
2008-04-18 18:34:11 -04:00
|
|
|
downloadJars(path); // 10-55%
|
|
|
|
|
|
|
|
// Extract Pack and LZMA files
|
|
|
|
extractJars(path); // 55-65%
|
2007-06-10 16:30:03 -04:00
|
|
|
|
|
|
|
// Extracts Native Files
|
|
|
|
extractNatives(path); // 65-85%
|
|
|
|
|
|
|
|
// add version information once jars downloaded successfully
|
|
|
|
if (version != null) {
|
|
|
|
percentage = 90;
|
|
|
|
writeVersionFile(dir, latestVersion);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// add the downloaded jars and natives to classpath
|
|
|
|
updateClassPath(path);
|
|
|
|
|
|
|
|
// switch to LWJGL Applet
|
|
|
|
switchApplet();
|
|
|
|
|
|
|
|
state = STATE_DONE;
|
|
|
|
} catch (AccessControlException ace) {
|
|
|
|
fatalErrorOccured(ace.getMessage());
|
2007-06-11 14:10:19 -04:00
|
|
|
certificateRefused = true;
|
2007-06-10 16:30:03 -04:00
|
|
|
} catch (Exception e) {
|
|
|
|
fatalErrorOccured(e.getMessage());
|
|
|
|
} finally {
|
|
|
|
loaderThread = null;
|
2007-06-11 14:10:19 -04:00
|
|
|
repaint();
|
2007-06-10 16:30:03 -04:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* read the current version file
|
|
|
|
*
|
|
|
|
* @param file the file to read
|
|
|
|
* @return the version value of saved file
|
|
|
|
* @throws Exception if it fails to read value
|
|
|
|
*/
|
|
|
|
protected float readVersionFile(File file) throws Exception {
|
|
|
|
DataInputStream dis = new DataInputStream(new FileInputStream(file));
|
|
|
|
float version = dis.readFloat();
|
|
|
|
dis.close();
|
|
|
|
return version;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* write out version file of applet
|
|
|
|
*
|
|
|
|
* @param file the file to write out to
|
|
|
|
* @param version the version of the applet as a float
|
|
|
|
* @throws Exception if it fails to write file
|
|
|
|
*/
|
|
|
|
protected void writeVersionFile(File file, float version) throws Exception {
|
|
|
|
DataOutputStream dos = new DataOutputStream(new FileOutputStream(file));
|
|
|
|
dos.writeFloat(version);
|
|
|
|
dos.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(String path) throws Exception {
|
|
|
|
|
|
|
|
state = STATE_UPDATING_CLASSPATH;
|
|
|
|
|
|
|
|
percentage = 95;
|
2008-04-19 14:42:02 -04:00
|
|
|
|
2007-06-11 14:43:13 -04:00
|
|
|
Class[] parameters = new Class[] {URL.class};
|
|
|
|
|
2007-06-10 16:30:03 -04:00
|
|
|
// modify class path by adding downloaded jars to it
|
2008-04-13 12:32:55 -04:00
|
|
|
for (int i = 0; i < urlList.length-1; i++) {
|
2007-06-10 16:30:03 -04:00
|
|
|
// get location of jar as a url
|
2008-04-20 12:59:57 -04:00
|
|
|
URL u = new URL("file:" + path + getJarName(urlList[i]));
|
2007-06-10 16:30:03 -04:00
|
|
|
|
|
|
|
// add to class path
|
|
|
|
Method method = URLClassLoader.class.getDeclaredMethod("addURL", parameters);
|
|
|
|
method.setAccessible(true);
|
2007-06-11 14:43:13 -04:00
|
|
|
method.invoke(getClass().getClassLoader(), new Object[] {u});
|
2007-06-10 16:30:03 -04:00
|
|
|
}
|
|
|
|
|
2008-04-20 15:55:55 -04:00
|
|
|
debug_sleep(2000);
|
2007-06-10 16:30:03 -04:00
|
|
|
|
|
|
|
// 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");
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* replace the current applet with the lwjgl applet
|
|
|
|
* using AppletStub and initialise and start it
|
|
|
|
*/
|
2007-10-24 17:55:39 -04:00
|
|
|
protected synchronized void switchApplet() throws Exception {
|
2007-06-10 16:30:03 -04:00
|
|
|
|
|
|
|
state = STATE_SWITCHING_APPLET;
|
|
|
|
percentage = 100;
|
|
|
|
|
2008-04-20 15:55:55 -04:00
|
|
|
debug_sleep(2000);
|
2007-06-10 16:30:03 -04:00
|
|
|
|
|
|
|
Class appletClass = Class.forName(getParameter("al_main"));
|
|
|
|
lwjglApplet = (Applet) appletClass.newInstance();
|
|
|
|
|
|
|
|
lwjglApplet.setStub(this);
|
2007-10-20 17:20:00 -04:00
|
|
|
lwjglApplet.setSize(getWidth(), getHeight());
|
2007-06-10 16:30:03 -04:00
|
|
|
|
2007-10-24 17:55:39 -04:00
|
|
|
setLayout(new BorderLayout());
|
2007-06-10 16:30:03 -04:00
|
|
|
add(lwjglApplet);
|
|
|
|
|
|
|
|
state = STATE_INITIALIZE_REAL_APPLET;
|
|
|
|
lwjglApplet.init();
|
|
|
|
|
|
|
|
state = STATE_START_REAL_APPLET;
|
|
|
|
lwjglApplet.start();
|
2007-10-24 17:55:39 -04:00
|
|
|
|
|
|
|
|
|
|
|
// fix for issue with applet not showing up in firefox
|
|
|
|
setVisible(false);
|
2007-10-20 17:20:00 -04:00
|
|
|
validate();
|
2007-10-24 17:55:39 -04:00
|
|
|
setVisible(true);
|
2007-06-10 16:30:03 -04:00
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* 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 {
|
|
|
|
|
|
|
|
state = STATE_DOWNLOADING;
|
|
|
|
|
|
|
|
URLConnection urlconnection;
|
|
|
|
|
|
|
|
// calculate total size of jars to download
|
|
|
|
for (int i = 0; i < urlList.length; i++) {
|
|
|
|
urlconnection = urlList[i].openConnection();
|
|
|
|
totalSizeDownload += urlconnection.getContentLength();
|
|
|
|
}
|
|
|
|
|
|
|
|
int initialPercentage = percentage = 10;
|
|
|
|
|
|
|
|
// download each jar
|
|
|
|
byte buffer[] = new byte[65536];
|
|
|
|
for (int i = 0; i < urlList.length; i++) {
|
2008-04-20 15:55:55 -04:00
|
|
|
debug_sleep(2000);
|
2008-04-18 18:34:11 -04:00
|
|
|
|
2007-06-10 16:30:03 -04:00
|
|
|
urlconnection = urlList[i].openConnection();
|
|
|
|
|
|
|
|
String currentFile = getFileName(urlList[i]);
|
2007-10-24 17:25:54 -04:00
|
|
|
InputStream inputstream = getJarInputStream(currentFile, urlconnection);
|
2007-06-10 16:30:03 -04:00
|
|
|
FileOutputStream fos = new FileOutputStream(path + currentFile);
|
|
|
|
|
|
|
|
|
|
|
|
int bufferSize;
|
|
|
|
while ((bufferSize = inputstream.read(buffer, 0, buffer.length)) != -1) {
|
2008-04-20 15:55:55 -04:00
|
|
|
debug_sleep(10);
|
2007-06-10 16:30:03 -04:00
|
|
|
fos.write(buffer, 0, bufferSize);
|
|
|
|
currentSizeDownload += bufferSize;
|
2008-04-18 18:34:11 -04:00
|
|
|
percentage = initialPercentage + ((currentSizeDownload * 45) / totalSizeDownload);
|
2007-06-10 16:30:03 -04:00
|
|
|
subtaskMessage = "Retrieving: " + currentFile + " " + ((currentSizeDownload * 100) / totalSizeDownload) + "%";
|
|
|
|
}
|
2007-10-24 17:25:54 -04:00
|
|
|
|
|
|
|
inputstream.close();
|
|
|
|
fos.close();
|
2007-06-10 16:30:03 -04:00
|
|
|
}
|
|
|
|
subtaskMessage = "";
|
|
|
|
}
|
|
|
|
|
2007-10-24 17:25:54 -04:00
|
|
|
/**
|
|
|
|
* 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
|
|
|
|
*/
|
2008-04-18 18:34:11 -04:00
|
|
|
protected InputStream getJarInputStream(final String currentFile, final URLConnection urlconnection) throws Exception {
|
2007-10-24 17:25:54 -04:00
|
|
|
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;
|
2008-04-06 18:15:16 -04:00
|
|
|
while(is[0] == null && iterationCount++ < 5) {
|
2007-10-24 17:25:54 -04:00
|
|
|
try {
|
|
|
|
t.join(1000);
|
|
|
|
} catch (InterruptedException inte) {
|
|
|
|
/* ignored */
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2008-04-06 18:15:16 -04:00
|
|
|
if(is[0] == null) {
|
|
|
|
try {
|
|
|
|
t.interrupt();
|
|
|
|
t.join();
|
|
|
|
} catch (InterruptedException inte) {
|
|
|
|
/* ignored */
|
|
|
|
}
|
|
|
|
}
|
2007-10-24 17:25:54 -04:00
|
|
|
}
|
|
|
|
|
|
|
|
if(is[0] == null) {
|
|
|
|
throw new Exception("Unable to get input stream for " + currentFile);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
return is[0];
|
|
|
|
}
|
2008-04-18 18:34:11 -04:00
|
|
|
|
|
|
|
/**
|
|
|
|
* 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( new Class[] {InputStream.class} );
|
|
|
|
InputStream inputHandle = (InputStream) constructor.newInstance( new Object[] {fileInputHandle} );
|
|
|
|
|
|
|
|
OutputStream outputHandle;
|
|
|
|
outputHandle = new FileOutputStream(out);
|
|
|
|
|
|
|
|
byte [] buffer = new byte [1<<14];
|
|
|
|
|
|
|
|
int ret = inputHandle.read(buffer);
|
|
|
|
while (ret >= 1) {
|
|
|
|
outputHandle.write(buffer,0,ret);
|
|
|
|
ret = inputHandle.read(buffer);
|
|
|
|
}
|
|
|
|
|
|
|
|
inputHandle.close();
|
|
|
|
outputHandle.close();
|
|
|
|
|
|
|
|
outputHandle = null;
|
|
|
|
inputHandle = null;
|
|
|
|
|
|
|
|
// delete LZMA 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);
|
|
|
|
|
|
|
|
Pack200.Unpacker unpacker = Pack200.newUnpacker();
|
|
|
|
unpacker.unpack(f, jostream);
|
|
|
|
jostream.close();
|
|
|
|
|
|
|
|
// delete pack file as its no longer needed
|
|
|
|
f.delete();
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Extract all jars from any lzma/pack files
|
|
|
|
*
|
|
|
|
* @param path output path
|
|
|
|
* @throws exception if any errors occur
|
|
|
|
*/
|
|
|
|
protected void extractJars(String path) throws Exception {
|
|
|
|
state = STATE_EXTRACTING_PACKAGES;
|
|
|
|
|
|
|
|
float increment = (float) 10.0 / urlList.length;
|
|
|
|
// extract all lzma and pack.lzma files
|
|
|
|
for (int i = 0; i < urlList.length; i++) {
|
2008-04-20 15:55:55 -04:00
|
|
|
percentage = 55 + (int) (increment * (i+1));
|
2008-04-18 18:34:11 -04:00
|
|
|
String filename = getFileName(urlList[i]);
|
|
|
|
|
|
|
|
if (filename.endsWith(".pack.lzma")) {
|
2008-04-20 15:55:55 -04:00
|
|
|
subtaskMessage = "Extracting: " + filename + " to " + filename.replaceAll(".lzma", "");
|
|
|
|
debug_sleep(1000);
|
2008-04-18 18:34:11 -04:00
|
|
|
extractLZMA(path + filename, path + filename.replaceAll(".lzma", ""));
|
2008-04-20 15:55:55 -04:00
|
|
|
|
|
|
|
subtaskMessage = "Extracting: " + filename.replaceAll(".lzma", "") + " to " + filename.replaceAll(".pack.lzma", "");
|
|
|
|
debug_sleep(1000);
|
2008-04-18 18:34:11 -04:00
|
|
|
extractPack(path + filename.replaceAll(".lzma", ""), path + filename.replaceAll(".pack.lzma", ""));
|
|
|
|
}
|
|
|
|
else if (filename.endsWith(".pack")) {
|
2008-04-20 15:55:55 -04:00
|
|
|
subtaskMessage = "Extracting: " + filename + " to " + filename.replace(".pack", "");
|
|
|
|
debug_sleep(1000);
|
2008-04-18 18:34:11 -04:00
|
|
|
extractPack(path + filename, path + filename.replace(".pack", ""));
|
|
|
|
}
|
|
|
|
else if (filename.endsWith(".lzma")) {
|
2008-04-20 15:55:55 -04:00
|
|
|
subtaskMessage = "Extracting: " + filename + " to " + filename.replace(".lzma", "");
|
|
|
|
debug_sleep(1000);
|
2008-04-18 18:34:11 -04:00
|
|
|
extractLZMA(path + filename, path + filename.replace(".lzma", ""));
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
2007-10-24 17:25:54 -04:00
|
|
|
|
2007-06-10 16:30:03 -04:00
|
|
|
/**
|
|
|
|
* 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 {
|
2008-04-18 18:34:11 -04:00
|
|
|
|
2007-06-10 16:30:03 -04:00
|
|
|
state = STATE_EXTRACTING_PACKAGES;
|
|
|
|
|
|
|
|
int initialPercentage = percentage;
|
|
|
|
|
|
|
|
// get name of jar file with natives from urlList, it will be the last url
|
2008-04-20 12:59:57 -04:00
|
|
|
String nativeJar = getJarName(urlList[urlList.length - 1]);
|
2007-06-10 16:30:03 -04:00
|
|
|
|
|
|
|
// get the current certificate to compare against native files
|
|
|
|
Certificate[] certificate = AppletLoader.class.getProtectionDomain().getCodeSource().getCertificates();
|
|
|
|
|
|
|
|
// create native folder
|
|
|
|
File nativeFolder = new File(path + "natives");
|
|
|
|
if (!nativeFolder.exists()) {
|
|
|
|
nativeFolder.mkdir();
|
|
|
|
}
|
|
|
|
|
|
|
|
// open jar file
|
|
|
|
JarFile jarFile = new JarFile(path + nativeJar, true);
|
|
|
|
|
|
|
|
// get list of files in jar
|
|
|
|
Enumeration entities = jarFile.entries();
|
|
|
|
|
|
|
|
totalSizeExtract = 0;
|
|
|
|
|
|
|
|
// 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
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2008-04-20 15:55:55 -04:00
|
|
|
debug_sleep(1000);
|
2007-06-10 16:30:03 -04:00
|
|
|
|
|
|
|
InputStream in = jarFile.getInputStream(jarFile.getEntry(entry.getName()));
|
|
|
|
OutputStream out = new FileOutputStream(path + "natives" + File.separator + entry.getName());
|
|
|
|
|
|
|
|
int bufferSize;
|
|
|
|
byte buffer[] = new byte[65536];
|
|
|
|
|
|
|
|
while ((bufferSize = in.read(buffer, 0, buffer.length)) != -1) {
|
2008-04-20 15:55:55 -04:00
|
|
|
debug_sleep(10);
|
2007-06-10 16:30:03 -04:00
|
|
|
out.write(buffer, 0, bufferSize);
|
|
|
|
currentSizeExtract += bufferSize;
|
|
|
|
|
|
|
|
// update progress bar
|
|
|
|
percentage = initialPercentage + ((currentSizeExtract * 20) / totalSizeExtract);
|
|
|
|
subtaskMessage = "Extracting: " + entry.getName() + " " + ((currentSizeExtract * 100) / totalSizeExtract) + "%";
|
|
|
|
}
|
|
|
|
|
|
|
|
// validate if the certificate for native file is correct
|
|
|
|
validateCertificateChain(certificate, entry.getCertificates());
|
|
|
|
|
|
|
|
in.close();
|
|
|
|
out.close();
|
|
|
|
}
|
|
|
|
subtaskMessage = "";
|
|
|
|
|
|
|
|
jarFile.close();
|
2007-06-11 14:10:19 -04:00
|
|
|
|
|
|
|
// delete native jar as it is no longer needed
|
|
|
|
File f = new File(path + nativeJar);
|
|
|
|
f.delete();
|
2007-06-10 16:30:03 -04:00
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Validates the certificate chain for a single file
|
|
|
|
*
|
|
|
|
* @param ownCerts Chain of certificates to check against
|
|
|
|
* @param native_certs Chain of certificates to check
|
|
|
|
*/
|
|
|
|
protected static void validateCertificateChain(Certificate[] ownCerts, Certificate[] native_certs) throws Exception {
|
|
|
|
if (native_certs == null)
|
|
|
|
throw new Exception("Unable to validate certificate chain. Native entry did not have a certificate chain at all");
|
|
|
|
|
|
|
|
if (ownCerts.length != native_certs.length)
|
|
|
|
throw new Exception("Unable to validate certificate chain. Chain differs in length [" + ownCerts.length + " vs " + native_certs.length + "]");
|
|
|
|
|
|
|
|
for (int i = 0; i < ownCerts.length; i++) {
|
|
|
|
if (!ownCerts[i].equals(native_certs[i])) {
|
|
|
|
throw new Exception("Certificate mismatch: " + ownCerts[i] + " != " + native_certs[i]);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Get Image from path provided
|
|
|
|
*
|
|
|
|
* @param s location of the image
|
|
|
|
* @return the Image file
|
|
|
|
*/
|
|
|
|
protected Image getImage(String s) {
|
|
|
|
try {
|
|
|
|
DataInputStream datainputstream = new DataInputStream(getClass().getResourceAsStream(s));
|
|
|
|
byte abyte0[] = new byte[datainputstream.available()];
|
|
|
|
datainputstream.readFully(abyte0);
|
|
|
|
datainputstream.close();
|
|
|
|
return Toolkit.getDefaultToolkit().createImage(abyte0);
|
|
|
|
} catch (Exception e) {
|
|
|
|
/* */
|
|
|
|
}
|
|
|
|
return null;
|
|
|
|
}
|
2008-04-20 12:59:57 -04:00
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
* 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 = fileName.replaceAll(".pack.lzma", "");
|
|
|
|
} else if (fileName.endsWith(".pack")) {
|
|
|
|
fileName = fileName.replaceAll(".pack", "");
|
|
|
|
} else if (fileName.endsWith(".lzma")) {
|
|
|
|
fileName = fileName.replaceAll(".lzma", "");
|
|
|
|
}
|
|
|
|
|
|
|
|
return fileName.substring(fileName.lastIndexOf('/') + 1);
|
|
|
|
}
|
2007-06-10 16:30:03 -04:00
|
|
|
|
|
|
|
/**
|
|
|
|
* 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 color Color to load
|
|
|
|
* @param defaultColor Default color to use if no color to load
|
|
|
|
* @return Color to use
|
|
|
|
*/
|
|
|
|
protected Color getColor(String color, Color defaultColor) {
|
|
|
|
String param_color = getParameter(color);
|
|
|
|
if (param_color != null) {
|
|
|
|
return new Color(Integer.parseInt(param_color, 16));
|
|
|
|
}
|
|
|
|
return defaultColor;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Retrieves the boolean 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 boolean getBooleanParameter(String name, boolean defaultValue) {
|
|
|
|
String parameter = getParameter(name);
|
|
|
|
if(parameter != null) {
|
|
|
|
return Boolean.parseBoolean(parameter);
|
|
|
|
}
|
|
|
|
return defaultValue;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Sets the state of the loaded and prints some debug information
|
|
|
|
*
|
|
|
|
* @param error Error message to print
|
|
|
|
*/
|
|
|
|
protected void fatalErrorOccured(String error) {
|
|
|
|
fatalError = true;
|
|
|
|
fatalErrorDescription = "Fatal error occured (" + state + "): " + error;
|
|
|
|
System.out.println(fatalErrorDescription);
|
|
|
|
repaint();
|
|
|
|
}
|
|
|
|
|
2008-04-20 15:55:55 -04:00
|
|
|
/**
|
|
|
|
* 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);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2007-06-10 16:30:03 -04:00
|
|
|
/**
|
|
|
|
* Utility method for sleeping
|
|
|
|
* @param ms milliseconds to sleep
|
|
|
|
*/
|
|
|
|
protected void sleep(long ms) {
|
|
|
|
try {
|
|
|
|
Thread.sleep(ms);
|
|
|
|
} catch (Exception e) {
|
|
|
|
/* ignored */
|
|
|
|
}
|
2008-04-20 15:55:55 -04:00
|
|
|
}
|
|
|
|
|
|
|
|
|
2008-01-21 17:20:25 -05:00
|
|
|
}
|