/*
* Copyright (c) 1994, 1998, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code 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
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package sun.net.www;
import java.net.URL;
import java.io.*;
import java.util.StringTokenizer;
class MimeLauncher extends Thread {
java.net.URLConnection uc;
MimeEntry m;
String genericTempFileTemplate;
InputStream is;
String execPath;
MimeLauncher (MimeEntry M, java.net.URLConnection uc,
InputStream is, String tempFileTemplate, String threadName) throws ApplicationLaunchException {
super(threadName);
m = M;
this.uc = uc;
this.is = is;
genericTempFileTemplate = tempFileTemplate;
/* get the application to launch */
String launchString = m.getLaunchString();
/* get a valid path to launch application - sets
the execPath instance variable with the correct path.
*/
if (!findExecutablePath(launchString)) {
/* strip off parameters i.e %s */
String appName;
int index = launchString.indexOf(' ');
if (index != -1) {
appName = launchString.substring(0, index);
}
else {
appName = launchString;
}
throw new ApplicationLaunchException(appName);
}
}
protected String getTempFileName(URL url, String template) {
String tempFilename = template;
// Replace all but last occurrance of "%s" with timestamp to insure
// uniqueness. There's a subtle behavior here: if there is anything
// _after_ the last "%s" we need to append it so that unusual launch
// strings that have the datafile in the middle can still be used.
int wildcard = tempFilename.lastIndexOf("%s");
String prefix = tempFilename.substring(0, wildcard);
String suffix = "";
if (wildcard < tempFilename.length() - 2) {
suffix = tempFilename.substring(wildcard + 2);
}
long timestamp = System.currentTimeMillis()/1000;
int argIndex = 0;
while ((argIndex = prefix.indexOf("%s")) >= 0) {
prefix = prefix.substring(0, argIndex)
+ timestamp
+ prefix.substring(argIndex + 2);
}
// Add a file name and file-extension if known
String filename = url.getFile();
String extension = "";
int dot = filename.lastIndexOf('.');
// BugId 4084826: Temp MIME file names not always valid.
// Fix: don't allow slashes in the file name or extension.
if (dot >= 0 && dot > filename.lastIndexOf('/')) {
extension = filename.substring(dot);
}
filename = "HJ" + url.hashCode();
tempFilename = prefix + filename + timestamp + extension + suffix;
return tempFilename;
}
public void run() {
try {
String ofn = m.getTempFileTemplate();
if (ofn == null) {
ofn = genericTempFileTemplate;
}
ofn = getTempFileName(uc.getURL(), ofn);
try {
OutputStream os = new FileOutputStream(ofn);
byte buf[] = new byte[2048];
int i = 0;
try {
while ((i = is.read(buf)) >= 0) {
os.write(buf, 0, i);
}
} catch(IOException e) {
//System.err.println("Exception in write loop " + i);
//e.printStackTrace();
} finally {
os.close();
is.close();
}
} catch(IOException e) {
//System.err.println("Exception in input or output stream");
//e.printStackTrace();
}
int inx = 0;
String c = execPath;
while ((inx = c.indexOf("%t")) >= 0) {
c = c.substring(0, inx) + uc.getContentType()
+ c.substring(inx + 2);
}
boolean substituted = false;
while ((inx = c.indexOf("%s")) >= 0) {
c = c.substring(0, inx) + ofn + c.substring(inx + 2);
substituted = true;
}
if (!substituted)
c = c + " <" + ofn;
// System.out.println("Execing " +c);
Runtime.getRuntime().exec(c);
} catch(IOException e) {
}
}
/* This method determines the path for the launcher application
and sets the execPath instance variable. It uses the exec.path
property to obtain a list of paths that is in turn used to
location the application. If a valid path is not found, it
returns false else true. */
private boolean findExecutablePath(String str) {
if (str == null || str.length() == 0) {
return false;
}
String command;
int index = str.indexOf(' ');
if (index != -1) {
command = str.substring(0, index);
}
else {
command = str;
}
File f = new File(command);
if (f.isFile()) {
// Already executable as it is
execPath = str;
return true;
}
String execPathList;
execPathList = java.security.AccessController.doPrivileged(
new sun.security.action.GetPropertyAction("exec.path"));
if (execPathList == null) {
// exec.path property not set
return false;
}
StringTokenizer iter = new StringTokenizer(execPathList, "|");
while (iter.hasMoreElements()) {
String prefix = (String)iter.nextElement();
String fullCmd = prefix + File.separator + command;
f = new File(fullCmd);
if (f.isFile()) {
execPath = prefix + File.separator + str;
return true;
}
}
return false; // application not found in exec.path
}
}