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/*******************************************************************************
* Copyright (c) 2000, 2009 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.help.internal.webapp.servlet;
import java.io.*;
import javax.servlet.http.*;
import org.eclipse.help.internal.webapp.data.*;
import org.eclipse.help.webapp.IFilter;
/**
* This class inserts a script for showing the page inside the table of contents
*/
public class ShowInTocFilter implements IFilter {
private static final String scriptPart1 = "\n<script type=\"text/javascript\" src=\""; //$NON-NLS-1$
private static final String scriptPart3 = "advanced/synchWithToc.js\"></script>"; //$NON-NLS-1$
/*
* @see IFilter#filter(HttpServletRequest, OutputStream)
*/
@Override
public OutputStream filter(HttpServletRequest req, OutputStream out) {
String uri = req.getRequestURI();
if (uri == null) return out;
if (!uri.endsWith("html") && !uri.endsWith("htm") && !UrlUtil.isNavPath(uri)) { //$NON-NLS-1$ //$NON-NLS-2$
return out;
}
if ("/nftopic".equals(req.getServletPath()) || //$NON-NLS-1$
"/ntopic".equals(req.getServletPath()) || //$NON-NLS-1$
"/rtopic".equals(req.getServletPath()) || //$NON-NLS-1$
UrlUtil.isBot(req)) {
return out;
}
String noframes = req.getParameter("noframes"); //$NON-NLS-1$
if ("true".equals(noframes)) { //$NON-NLS-1$
return out;
}
String path = req.getPathInfo();
if (path == null) {
return out;
}
StringBuffer script = new StringBuffer(scriptPart1);
String relativePath = FilterUtils.getRelativePathPrefix(req);
script.append(relativePath);
script.append(scriptPart3);
try {
return new FilterHTMLHeadOutputStream(out, script.toString()
.getBytes("ASCII")); //$NON-NLS-1$
} catch (UnsupportedEncodingException uee) {
return out;
}
}
}
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