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Diffstat (limited to 'netx/net/sourceforge/jnlp/services/XBasicService.java')
| -rw-r--r-- | netx/net/sourceforge/jnlp/services/XBasicService.java | 232 |
1 files changed, 232 insertions, 0 deletions
diff --git a/netx/net/sourceforge/jnlp/services/XBasicService.java b/netx/net/sourceforge/jnlp/services/XBasicService.java new file mode 100644 index 0000000..a7ef906 --- /dev/null +++ b/netx/net/sourceforge/jnlp/services/XBasicService.java @@ -0,0 +1,232 @@ +// Copyright (C) 2001 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.services; + +import java.io.IOException; +import java.net.MalformedURLException; +import java.net.URL; + +import javax.jnlp.BasicService; +import javax.swing.JOptionPane; +import javax.swing.JPanel; + +import net.sourceforge.jnlp.InformationDesc; +import net.sourceforge.jnlp.JARDesc; +import net.sourceforge.jnlp.JNLPFile; +import net.sourceforge.jnlp.Launcher; +import net.sourceforge.jnlp.runtime.ApplicationInstance; +import net.sourceforge.jnlp.runtime.JNLPRuntime; +import net.sourceforge.jnlp.util.PropertiesFile; + +/** + * The BasicService JNLP service. + * + * @author <a href="mailto:[email protected]">Jon A. Maxwell (JAM)</a> - initial author + * @version $Revision: 1.10 $ + */ +class XBasicService implements BasicService { + + /** command used to exec the native browser */ + private String command = null; + + /** whether the command was loaded / prompted for */ + private boolean initialized = false; + + + protected XBasicService() { + } + + /** + * Returns the codebase of the application, applet, or + * installer. If the codebase was not specified in the JNLP + * element then the main JAR's location is returned. If no main + * JAR was specified then the location of the JAR containing the + * main class is returned. + */ + public URL getCodeBase() { + ApplicationInstance app = JNLPRuntime.getApplication(); + + if (app != null) { + JNLPFile file = app.getJNLPFile(); + + // return the codebase. + if (file.getCodeBase() != null) + return file.getCodeBase(); + + // else return the main JAR's URL. + JARDesc mainJar = file.getResources().getMainJAR(); + if (mainJar != null) + return mainJar.getLocation(); + + // else find JAR where main class was defined. + // + // JNLPFile file = app.getJNLPFile(); + // String mainClass = file.getLaunchInfo().getMainClass()+".class"; + // URL jarUrl = app.getClassLoader().getResource(mainClass); + // go through list of JARDesc to find one matching jarUrl + } + + return null; + } + + /** + * Return true if the Environment is Offline + */ + public boolean isOffline() { + + URL url = findFirstURLFromJNLPFile(); + + try { + url.openConnection().getInputStream().close(); + return false; + } catch (IOException exception) { + return true; + } + } + + /** + * Return the first URL from the jnlp file + * Or a default URL if no url found in JNLP file + */ + private URL findFirstURLFromJNLPFile() { + + ApplicationInstance app = JNLPRuntime.getApplication(); + + if (app != null) { + JNLPFile jnlpFile = app.getJNLPFile(); + + URL sourceURL = jnlpFile.getSourceLocation(); + if (sourceURL != null) { + return sourceURL; + } + + URL codeBaseURL = jnlpFile.getCodeBase(); + if (codeBaseURL != null) { + return codeBaseURL; + } + + InformationDesc informationDesc = jnlpFile.getInformation(); + URL homePage = informationDesc.getHomepage(); + if (homePage != null) { + return homePage; + } + + JARDesc[] jarDescs = jnlpFile.getResources().getJARs(); + for (JARDesc jarDesc: jarDescs) { + return jarDesc.getLocation(); + } + } + + // this section is only reached if the jnlp file has no jars. + // that doesnt seem very likely. + URL arbitraryURL; + try { + arbitraryURL = new URL("http://icedtea.classpath.org"); + } catch (MalformedURLException malformedURL) { + throw new RuntimeException(malformedURL); + } + + return arbitraryURL; + } + + /** + * Return true if a Web Browser is Supported + */ + public boolean isWebBrowserSupported() { + initialize(); + + return command != null; + } + + /** + * Show a document. + * + * @return whether the document was opened + */ + public boolean showDocument(URL url) { + initialize(); + + if (url.toString().endsWith(".jnlp")) { + try { + new Launcher().launchExternal(url); + return true; + } + catch (Exception ex) { + return false; + } + } + + if (command != null) { + try { + // this is bogus because the command may require options; + // should use a StreamTokenizer or similar to get tokens + // outside of quotes. + Runtime.getRuntime().exec(command + " " + url.toString()); + //Runtime.getRuntime().exec(new String[]{command,url.toString()}); + + return true; + } + catch(IOException ex){ + if (JNLPRuntime.isDebug()) + ex.printStackTrace(); + } + } + + return false; + } + + private void initialize() { + if (initialized) + return; + initialized = true; + + if(isWindows()) { + command = "rundll32 url.dll,FileProtocolHandler "; + } + else { + PropertiesFile props = JNLPRuntime.getProperties(); + command = props.getProperty("browser.command"); + + if(command == null) { // prompt & store + command = promptForCommand(null); + + if(command != null) { + props.setProperty("browser.command", command); + props.store(); + } + } + } + } + + private boolean isWindows() { + String os = System.getProperty("os.name"); + if(os != null && os.startsWith("Windows")) + return true; + else + return false; + } + + private String promptForCommand(String cmd) { + return JOptionPane.showInputDialog(new JPanel(), + "Browser Location:", + "Specify Browser Location", + JOptionPane.PLAIN_MESSAGE + ); + } + +} |