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+/* XFileSaveService.java
+ Copyright (C) 2008 Red Hat, Inc.
+
+This file is part of IcedTea.
+
+IcedTea is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License as published by
+the Free Software Foundation, version 2.
+
+IcedTea is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with IcedTea; see the file COPYING. If not, write to
+the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library. Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module. An independent module is a module which is not derived from
+or based on this library. If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so. If you do not wish to do so, delete this
+exception statement from your version.
+*/
+
+package net.sourceforge.jnlp.services;
+
+import java.io.*;
+import java.net.*;
+import java.util.*;
+import java.lang.ref.*;
+import javax.jnlp.*;
+
+import net.sourceforge.jnlp.*;
+import net.sourceforge.jnlp.security.*;
+
+import javax.swing.JFileChooser;
+import javax.swing.JOptionPane;
+import java.security.*;
+
+/**
+ * The FileSaveService JNLP service.
+ *
+ * @author <a href="mailto:[email protected]">Joshua Sumali</a>
+ */
+class XFileSaveService implements FileSaveService {
+
+ protected XFileSaveService() {
+ }
+
+ /**
+ * Prompts the user to save a file.
+ */
+ public FileContents saveFileDialog(java.lang.String pathHint,
+ java.lang.String[] extensions, java.io.InputStream stream,
+ java.lang.String name) throws java.io.IOException {
+
+ if (ServiceUtil.checkAccess(SecurityWarningDialog.AccessType.WRITE_FILE)) {
+ JFileChooser chooser = new JFileChooser();
+ int chosen = chooser.showSaveDialog(null);
+
+ if (chosen == JFileChooser.APPROVE_OPTION) {
+ writeToFile(stream, chooser.getSelectedFile());
+ return (FileContents) ServiceUtil.createPrivilegedProxy(
+ FileContents.class,
+ new XFileContents(chooser.getSelectedFile()));
+ } else {
+ return null;
+ }
+ } else {
+ return null;
+ }
+ }
+
+ /**
+ * Prompts the user to save a file, with an optional pre-set filename.
+ */
+ public FileContents saveAsFileDialog(java.lang.String pathHint,
+ java.lang.String[] extensions, FileContents contents) throws java.io.IOException {
+
+ if (ServiceUtil.checkAccess(SecurityWarningDialog.AccessType.WRITE_FILE)) {
+ JFileChooser chooser = new JFileChooser();
+ chooser.setSelectedFile(new File(contents.getName()));
+ int chosen = chooser.showSaveDialog(null);
+
+ if (chosen == JFileChooser.APPROVE_OPTION) {
+ writeToFile(contents.getInputStream(),
+ chooser.getSelectedFile());
+
+ return (FileContents) ServiceUtil.createPrivilegedProxy(
+ FileContents.class,
+ new XFileContents(chooser.getSelectedFile()));
+ } else {
+ return null;
+ }
+ } else {
+ return null;
+ }
+ }
+
+ /**
+ * Writes actual file to disk.
+ */
+ private void writeToFile(InputStream stream, File file) throws IOException {
+ if (!file.createNewFile()) { //file exists
+ boolean replace = (JOptionPane.showConfirmDialog(null,
+ file.getAbsolutePath() + " already exists.\n"
+ +"Do you want to replace it?",
+ "Warning - File Exists", JOptionPane.YES_NO_OPTION) == 0);
+ if (!replace)
+ return;
+ } else {
+ file.createNewFile();
+ }
+
+ if (file.canWrite()) {
+ FileOutputStream out = new FileOutputStream(file);
+ byte[] b = new byte[256];
+ int read = 0;
+ while ((read = stream.read(b)) > 0)
+ out.write(b, 0, read);
+ out.flush();
+ out.close();
+ } else {
+ throw new IOException("Unable to open file for writing");
+ }
+ }
+}