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/*******************************************************************************
* Copyright (c) 2000, 2015 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 java.net.URLEncoder;
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 appropriate
* frameset when bookmarked.
*/
public class FramesetFilter implements IFilter {
private static final String scriptPart1 = "<script type=\"text/javascript\">\nif( self == top ){" //$NON-NLS-1$
+ "\n var anchorParam = location.hash.length > 0 ? '" //$NON-NLS-1$
+ UrlUtil.JavaScriptEncode("&") + "anchor=' + location.hash.substr(1) : '';" //$NON-NLS-1$ //$NON-NLS-2$
+ "\n window.location.replace( \""; //$NON-NLS-1$
private static final String scriptPart3 = "\" + anchorParam);\n}\n</script>"; //$NON-NLS-1$
/*
* @see IFilter#filter(HttpServletRequest, OutputStream)
*/
@Override
public OutputStream filter(HttpServletRequest req, OutputStream out) {
String uri = req.getRequestURI();
String url = req.getPathInfo();
String query = req.getQueryString();
if (uri == null) {
return out;
}
boolean isNavPath = UrlUtil.isNavPath(uri);
if (!uri.endsWith("html") && !uri.endsWith("htm") && !isNavPath) { //$NON-NLS-1$ //$NON-NLS-2$
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);
for (int i; 0 <= (i = path.indexOf('/')); path = path.substring(i + 1)) {
script.append("../"); //$NON-NLS-1$
}
if (isNavPath) {
script.append("index.jsp?nav="); //$NON-NLS-1$
} else {
script.append("index.jsp?topic="); //$NON-NLS-1$
}
try{
// Bug 317055 - [webapp] URLEncode url requests from local users
url = URLEncoder.encode(url, "UTF-8"); //$NON-NLS-1$
if ( query != null ) {
url = url + UrlUtil.JavaScriptEncode("&") + query; //$NON-NLS-1$
}
script.append(url);
} catch (UnsupportedEncodingException uee){
return out;
}
script.append(scriptPart3);
try {
return new FilterHTMLHeadOutputStream(out, script.toString()
.getBytes("ASCII")); //$NON-NLS-1$
} catch (UnsupportedEncodingException uee) {
return out;
}
}
}
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