/*************************************************************************
*
* $RCSfile: AppletResourceConnection.java,v $
*
* $Revision: 1.1.1.1 $
*
* last change: $Author: hr $ $Date: 2000/09/18 16:54:04 $
*
* The Contents of this file are made available subject to the terms of
* either of the following licenses
*
* - GNU Lesser General Public License Version 2.1
* - Sun Industry Standards Source License Version 1.1
*
* Sun Microsystems Inc., October, 2000
*
* GNU Lesser General Public License Version 2.1
* =============================================
* Copyright 2000 by Sun Microsystems, Inc.
* 901 San Antonio Road, Palo Alto, CA 94303, USA
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software Foundation.
*
* 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
*
*
* Sun Industry Standards Source License Version 1.1
* =================================================
* The contents of this file are subject to the Sun Industry Standards
* Source License Version 1.1 (the "License"); You may not use this file
* except in compliance with the License. You may obtain a copy of the
* License at http://www.openoffice.org/license.html.
*
* Software provided under this License is provided on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
* WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
* MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
* See the License for the specific provisions governing your rights and
* obligations concerning the Software.
*
* The Initial Developer of the Original Code is: Sun Microsystems, Inc.
*
* Copyright: 2000 by Sun Microsystems, Inc.
*
* All Rights Reserved.
*
* Contributor(s): _______________________________________
*
*
************************************************************************/
package stardiv.net.protocol.appletresource;
import java.net.URL;
import java.io.IOException;
import java.io.InputStream;
import sun.net.www.URLConnection;
import sun.net.www.MessageHeader;
import sun.net.*;
import java.net.*;
import com.sun.star.lib.sandbox.ResourceProxy;
import com.sun.star.lib.sandbox.SandboxSecurityException;
/**
* AppletResource: represents a resource obtained through an AppletClassLoader
* Resource URLs are of the form "appresource:<baseURL>/+/<resource name>"
*
* @see Handler
* @version 1.8, 11/23/96
* @author Eduardo Pelegri-Llopart
*/
public class AppletResourceConnection extends URLConnection {
private static boolean debug = false;// debugging?
private Object resource; // the resource we are looking for
private String base; // basename for resource
private String member; // member relative to base
private URL cachedURL; // the URL under which the resource is cached
protected AppletResourceConnection (URL url)
throws MalformedURLException, IOException
{
super(url);
debug("AppletResourceConnection("+url+")");
String file = url.getFile();
if (file.startsWith("/")) {
file = file.substring(1);
}
base = file.substring(0, file.indexOf("/+/"));
member = file.substring(file.indexOf("/+/")+3);
cachedURL = new URL(base + member);
debug(" base: "+base);
debug(" member: "+member);
debug(" cachedURL: "+cachedURL);
}
public static synchronized Object getContent(ResourceProxy resource, URL url) {
SecurityManager securityManager = System.getSecurityManager();
if(securityManager != null)
securityManager.checkConnect(url.getHost(), url.getPort());
Object content = null;
try {
content = resource.getContent();
if (content != null && content instanceof String) {
// this is a .class file...
// no access to .class files through getResource() in 1.1
throw new SandboxSecurityException("getresource.noclassaccess", url.toString());
}
}
catch(IOException iOException) {
if(debug) System.err.println("#### AppletResourceConnection.getContent - exception:" + iOException);
}
return content;
}
public void connect() throws IOException {
debug("Looking for "+cachedURL+" in AppletResourceLoader");
ResourceProxy resourceProxy = ResourceProxy.load(cachedURL, null);
Object content = getContent(resourceProxy, cachedURL);
if (content == null) {
debug("Invalid resource name");
resource = null;
return;
} else {
debug("Found resource");
resource = content;
}
}
public Object getContent() throws IOException {
if (!connected) {
connect();
}
return resource;
}
public InputStream getInputStream() throws IOException {
if (!connected) {
connect();
}
if (resource instanceof InputStream) {
return (InputStream) resource;
}
return ResourceProxy.load(cachedURL, null).getInputStream();
}
private void debug(String msg) {
if (debug) {
System.err.println(msg);
}
}
}