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// Copyright (C) 2001-2003 Jon A. Maxwell (JAM)
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
package net.sourceforge.jnlp.runtime;
import static net.sourceforge.jnlp.runtime.Translator.R;
import java.io.File;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
import java.security.AccessController;
import java.security.PrivilegedAction;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import net.sourceforge.jnlp.AppletDesc;
import net.sourceforge.jnlp.ApplicationDesc;
import net.sourceforge.jnlp.JNLPFile;
import net.sourceforge.jnlp.LaunchException;
import net.sourceforge.jnlp.Launcher;
import net.sourceforge.jnlp.ParseException;
import net.sourceforge.jnlp.PropertyDesc;
import net.sourceforge.jnlp.ResourcesDesc;
import net.sourceforge.jnlp.cache.CacheUtil;
import net.sourceforge.jnlp.cache.UpdatePolicy;
import net.sourceforge.jnlp.security.viewer.CertificateViewer;
import net.sourceforge.jnlp.services.ServiceUtil;
/**
* This is the main entry point for the JNLP client. The main
* method parses the command line parameters and loads a JNLP
* file into the secure runtime environment. This class is meant
* to be called from the command line or file association; to
* initialize the netx engine from other code invoke the
* <code>JNLPRuntime.initialize</code> method after configuring
* the runtime.
*
* @author <a href="mailto:jmaxwell@users.sourceforge.net">Jon A. Maxwell (JAM)</a> - initial author
* @version $Revision: 1.21 $
*/
public final class Boot implements PrivilegedAction<Void> {
// todo: decide whether a spawned netx (external launch)
// should inherit the same options as this instance (store argv?)
private static final String name = Boot.class.getPackage().getImplementationTitle();
private static final String version = Boot.class.getPackage().getImplementationVersion();
/** the text to display before launching the about link */
private static final String aboutMessage = ""
+ name + " " + version
+ "\n"
+ R("BLaunchAbout");
private static final String miniLicense = "\n"
+ " netx - an open-source JNLP client.\n"
+ " Copyright (C) 2001-2003 Jon A. Maxwell (JAM)\n"
+ "\n"
+ " // This library is free software; you can redistribute it and/or\n"
+ " modify it under the terms of the GNU Lesser General Public\n"
+ " License as published by the Free Software Foundation; either\n"
+ " version 2.1 of the License, or (at your option) any later version.\n"
+ "\n"
+ " This library is distributed in the hope that it will be useful,\n"
+ " but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
+ " MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\n"
+ " Lesser General Public License for more details.\n"
+ "\n"
+ " You should have received a copy of the GNU Lesser General Public\n"
+ " License along with this library; if not, write to the Free Software\n"
+ " Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.\n"
+ "\n";
private static final String helpMessage = "\n"
+ "Usage: " + R("BOUsage") + "\n"
+ " " + R("BOUsage2") + "\n"
+ "\n"
+ "control-options:" + "\n"
+ " -about " + R("BOAbout") + "\n"
+ " -viewer " + R("BOViewer") + "\n"
+ "\n"
+ "run-options:" + "\n"
+ " -arg arg " + R("BOArg") + "\n"
+ " -param name=value " + R("BOParam") + "\n"
+ " -property name=value " + R("BOProperty") + "\n"
+ " -update seconds " + R("BOUpdate") + "\n"
+ " -license " + R("BOLicense") + "\n"
+ " -verbose " + R("BOVerbose") + "\n"
+ " -nosecurity " + R("BONosecurity") + "\n"
+ " -noupdate " + R("BONoupdate") + "\n"
+ " -headless " + R("BOHeadless") + "\n"
+ " -strict " + R("BOStrict") + "\n"
+ " -Xnofork " + R("BXnofork") + "\n"
+ " -Xclearcache " + R("BXclearcache") + "\n"
+ " -help " + R("BOHelp") + "\n";
/** the JNLP file to open to display the network-based about window */
private static final String NETX_ABOUT_FILE = System.getProperty("java.home") + File.separator + "lib"
+ File.separator + "about.jnlp";
private static final String doubleArgs = "-basedir -jnlp -arg -param -property -update";
private static String args[]; // avoid the hot potato
/**
* Launch the JNLP file specified by the command-line arguments.
*/
public static void main(String[] argsIn) {
args = argsIn;
if (null != getOption("-viewer")) {
try {
CertificateViewer.main(null);
System.exit(0);
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
if (null != getOption("-license")) {
System.out.println(miniLicense);
System.exit(0);
}
if (null != getOption("-help")) {
System.out.println(helpMessage);
System.exit(0);
}
if (null != getOption("-about"))
System.out.println(aboutMessage);
if (null != getOption("-verbose"))
JNLPRuntime.setDebug(true);
if (null != getOption("-update")) {
int value = Integer.parseInt(getOption("-update"));
JNLPRuntime.setDefaultUpdatePolicy(new UpdatePolicy(value * 1000l));
}
if (null != getOption("-headless"))
JNLPRuntime.setHeadless(true);
if (null != getOption("-noupdate"))
JNLPRuntime.setDefaultUpdatePolicy(UpdatePolicy.NEVER);
if (null != getOption("-Xnofork")) {
JNLPRuntime.setForksAllowed(false);
}
JNLPRuntime.setInitialArgments(Arrays.asList(argsIn));
// do in a privileged action to clear the security context of
// the Boot13 class, which doesn't have any privileges in
// JRE1.3; JRE1.4 works without Boot13 or this PrivilegedAction.
AccessController.doPrivileged(new Boot());
}
/**
* The privileged part (jdk1.3 compatibility).
*/
public Void run() {
JNLPRuntime.setSecurityEnabled(null == getOption("-nosecurity"));
JNLPRuntime.initialize(true);
/*
* FIXME
* This should have been done with the rest of the argument parsing
* code. But we need to know what the cache and base directories are,
* and baseDir is initialized here
*/
if (null != getOption("-Xclearcache")) {
CacheUtil.clearCache();
return null;
}
try {
new Launcher().launch(getFile());
} catch (LaunchException ex) {
// default handler prints this
} catch (Exception ex) {
if (JNLPRuntime.isDebug())
ex.printStackTrace();
fatalError(R("RUnexpected", ex.toString(), ex.getStackTrace()[0]));
}
return null;
}
private static void fatalError(String message) {
System.err.println("netx: " + message);
System.exit(1);
}
/**
* Returns the about.jnlp file in {java.home}/lib or null if this file
* does not exist.
*/
private static String getAboutFile() {
if (new File(NETX_ABOUT_FILE).exists())
return NETX_ABOUT_FILE;
else
return null;
}
/**
* Returns the file to open; does not return if no file was
* specified.
*/
private static JNLPFile getFile() throws ParseException, MalformedURLException, IOException {
String location = getJNLPFile();
// override -jnlp with aboutFile
if (getOption("-about") != null) {
location = getAboutFile();
if (location == null)
fatalError("Unable to find about.jnlp in {java.home}/lib/");
} else {
location = getJNLPFile();
}
if (location == null) {
System.out.println(helpMessage);
System.exit(1);
}
if (JNLPRuntime.isDebug())
System.out.println(R("BFileLoc") + ": " + location);
URL url = null;
try {
if (new File(location).exists())
// TODO: Should be toURI().toURL()
url = new File(location).toURL(); // Why use file.getCanonicalFile?
else
url = new URL(ServiceUtil.getBasicService().getCodeBase(), location);
} catch (Exception e) {
fatalError("Invalid jnlp file " + location);
if (JNLPRuntime.isDebug())
e.printStackTrace();
}
boolean strict = (null != getOption("-strict"));
JNLPFile file = new JNLPFile(url, strict);
// Launches the jnlp file where this file originated.
if (file.getSourceLocation() != null) {
file = new JNLPFile(file.getSourceLocation(), strict);
}
// add in extra params from command line
addProperties(file);
if (file.isApplet())
addParameters(file);
if (file.isApplication())
addArguments(file);
if (JNLPRuntime.isDebug()) {
if (getOption("-arg") != null)
if (file.isInstaller() || file.isApplet())
System.out.println(R("BArgsNA"));
if (getOption("-param") != null)
if (file.isApplication())
System.out.println(R("BParamNA"));
}
return file;
}
/**
* Add the properties to the JNLP file.
*/
private static void addProperties(JNLPFile file) {
String props[] = getOptions("-property");
ResourcesDesc resources = file.getResources();
for (int i = 0; i < props.length; i++) {
// allows empty property, not sure about validity of that.
int equals = props[i].indexOf("=");
if (equals == -1)
fatalError(R("BBadProp", props[i]));
String key = props[i].substring(0, equals);
String value = props[i].substring(equals + 1, props[i].length());
resources.addResource(new PropertyDesc(key, value));
}
}
/**
* Add the params to the JNLP file; only call if file is
* actually an applet file.
*/
private static void addParameters(JNLPFile file) {
String params[] = getOptions("-param");
AppletDesc applet = file.getApplet();
for (int i = 0; i < params.length; i++) {
// allows empty param, not sure about validity of that.
int equals = params[i].indexOf("=");
if (equals == -1)
fatalError(R("BBadParam", params[i]));
String name = params[i].substring(0, equals);
String value = params[i].substring(equals + 1, params[i].length());
applet.addParameter(name, value);
}
}
/**
* Add the arguments to the JNLP file; only call if file is
* actually an application (not installer).
*/
private static void addArguments(JNLPFile file) {
String args[] = getOptions("-arg"); // FYI args also global variable
ApplicationDesc app = file.getApplication();
for (int i = 0; i < args.length; i++) {
app.addArgument(args[i]);
}
}
/**
* Gets the JNLP file from the command line arguments, or exits upon error.
*/
private static String getJNLPFile() {
if (args.length == 0) {
System.out.println(helpMessage);
System.exit(0);
} else if (args.length == 1) {
return args[args.length - 1];
} else {
String lastArg = args[args.length - 1];
String secondLastArg = args[args.length - 2];
if (doubleArgs.indexOf(secondLastArg) == -1) {
return lastArg;
} else {
System.out.println(helpMessage);
System.exit(0);
}
}
return null;
}
/**
* Return value of the first occurence of the specified
* option, or null if the option is not present. If the
* option is a flag (0-parameter) and is present then the
* option name is returned.
*/
private static String getOption(String option) {
String result[] = getOptions(option);
if (result.length == 0)
return null;
else
return result[0];
}
/**
* Return all the values of the specified option, or an empty
* array if the option is not present. If the option is a
* flag (0-parameter) and is present then the option name is
* returned once for each occurrence.
*/
private static String[] getOptions(String option) {
List<String> result = new ArrayList<String>();
for (int i = 0; i < args.length; i++) {
if (option.equals(args[i])) {
if (-1 == doubleArgs.indexOf(option))
result.add(option);
else if (i + 1 < args.length)
result.add(args[i + 1]);
}
if (args[i].startsWith("-") && -1 != doubleArgs.indexOf(args[i]))
i++;
}
return result.toArray(new String[result.size()]);
}
}
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