| /******************************************************************************* |
| * Copyright (c) 2000, 2019 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| |
| package org.eclipse.help.internal.webapp.servlet; |
| |
| import java.io.*; |
| import java.net.URLEncoder; |
| import java.nio.charset.StandardCharsets; |
| |
| 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>"; //$NON-NLS-1$ |
| |
| @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; |
| } |
| StringBuilder script = new StringBuilder(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); |
| return new FilterHTMLHeadOutputStream(out, script.toString().getBytes(StandardCharsets.US_ASCII)); |
| } |
| } |