| /******************************************************************************* |
| * Copyright (c) 2000, 2004 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.*; |
| |
| /** |
| * 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>if( self == top ){ window.location.replace( \""; //$NON-NLS-1$ |
| private static final String scriptPart3 = "\");}</script>"; //$NON-NLS-1$ |
| |
| /* |
| * @see IFilter#filter(HttpServletRequest, OutputStream) |
| */ |
| public OutputStream filter(HttpServletRequest req, OutputStream out) { |
| String uri = req.getRequestURI(); |
| if (uri == null || !uri.endsWith("html") && !uri.endsWith("htm")) { //$NON-NLS-1$ //$NON-NLS-2$ |
| return out; |
| } |
| |
| if ("/nftopic".equals(req.getServletPath()) || UrlUtil.isBot(req)) { //$NON-NLS-1$ |
| 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("../"); //$NON-NLS-1$ |
| } |
| script.append("?topic="); //$NON-NLS-1$ |
| script.append(req.getPathInfo()); |
| script.append(scriptPart3); |
| try { |
| return new FilterHTMLHeadOutputStream(out, script.toString() |
| .getBytes("ASCII")); |
| } catch (UnsupportedEncodingException uee) { |
| return out; |
| } |
| } |
| } |