WebMailHelp.java
上传用户:huihesys
上传日期:2007-01-04
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文件大小:4k
- /* CVS ID: $Id: WebMailHelp.java,v 1.3 2000/04/06 08:02:02 wastl Exp $ */
- import net.wastl.webmail.server.*;
- import net.wastl.webmail.server.http.*;
- import net.wastl.webmail.ui.ContentProvider;
- import net.wastl.webmail.ui.html.*;
- import net.wastl.webmail.ui.xml.*;
- import net.wastl.webmail.misc.*;
- import org.w3c.dom.*;
- import org.apache.xerces.parsers.*;
- /*
- * WebMailHelp.java
- *
- * Created: Wed Sep 1 16:23:14 1999
- *
- * Copyright (C) 1999-2000 Sebastian Schaffert
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- */
- /**
- * Show WebMail help file
- *
- * provides: help
- * requires: content bar
- *
- * @author Sebastian Schaffert
- * @version
- */
- public class WebMailHelp implements Plugin, URLHandler {
- public static final String VERSION="2.0";
- public static final String URL="/help";
- ExpireableCache cache;
- Storage store;
- public WebMailHelp() {
-
- }
- public void register(WebMailServer parent) {
- parent.getURLHandler().registerHandler(URL,this);
- cache=new ExpireableCache(20,(float).9);
- store=parent.getStorage();
- }
- public String getName() {
- return "WebMailHelp";
- }
- public String getDescription() {
- return "This is the WebMail help content-provider.";
- }
- public String getVersion() {
- return VERSION;
- }
- public String getURL() {
- return URL;
- }
- public HTMLDocument handleURL(String suburl, HTTPSession session, HTTPRequestHeader header) throws WebMailException {
- UserData user=((WebMailSession)session).getUser();
- Document helpdoc=(Document)cache.get(user.getPreferredLocale().getLanguage()+"/"+user.getTheme());
- if(helpdoc == null) {
- String helpdocpath=store.getBasePath(user.getPreferredLocale(),user.getTheme())+"help.xml";
-
- DOMParser parser = new DOMParser();
- try {
- parser.parse(helpdocpath);
- } catch(Exception ex) {
- ex.printStackTrace();
- throw new WebMailException("Could not parse "+helpdocpath);
- }
- helpdoc=parser.getDocument();
- cache.put(user.getPreferredLocale().getLanguage()+"/"+user.getTheme(),helpdoc);
- }
-
- /* Unfortunately we can't use two input documents, so we will temporarily insert the help document
- into the user's model */
- Node n=session.getModel().importNode(helpdoc.getDocumentElement(),true);
- session.getModel().getDocumentElement().appendChild(n);
- if(header.isContentSet("helptopic") && session instanceof WebMailSession) {
- ((WebMailSession)session).getUserModel().setStateVar("helptopic",header.getContent("helptopic"));
- }
- HTMLDocument retdoc=new XHTMLDocument(session.getModel(),store.getStylesheet("help.xsl",user.getPreferredLocale(),user.getTheme()));
- /* Here we remove the help document from the model */
- session.getModel().getDocumentElement().removeChild(n);
- /* Remove the indicator for a specific help topic */
- if(header.isContentSet("helptopic") && session instanceof WebMailSession) {
- ((WebMailSession)session).getUserModel().removeAllStateVars("helptopic");
- }
- return retdoc;
- }
- public String provides() {
- return "help";
- }
- public String requires() {
- return "content bar";
- }
- } // WebMailHelp