laszloplugin.java

xwiki 源码

/**
 * ===================================================================
 *
 * Copyright (c) 2003,2004 Ludovic Dubost, All rights reserved.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser 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 Lesser General Public License for more details, published at 
 * http://www.gnu.org/copyleft/lesser.html or in lesser.txt in the
 * root folder of this distribution.

 * Created by
 * User: Ludovic Dubost
 * Date: 23 avr. 2005
 * Time: 00:21:43
 */
package com.xpn.xwiki.plugin.laszlo;

import com.xpn.xwiki.XWikiContext;
import com.xpn.xwiki.XWikiException;
import com.xpn.xwiki.util.Util;
import com.xpn.xwiki.web.XWikiResponse;
import com.xpn.xwiki.api.Api;
import com.xpn.xwiki.plugin.XWikiDefaultPlugin;
import com.xpn.xwiki.plugin.XWikiPluginInterface;
import com.xpn.xwiki.plugin.graphviz.GraphVizPluginApi;
import com.xpn.xwiki.plugin.graphviz.GraphVizPlugin;
import com.xpn.xwiki.plugin.alexa.AlexaPluginApi;
import com.xpn.xwiki.plugin.alexa.AlexaPlugin;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.commons.lang.RandomStringUtils;

import java.io.*;

public class LaszloPlugin extends XWikiDefaultPlugin implements XWikiPluginInterface {
        private static Log mLogger =
                LogFactory.getFactory().getInstance(com.xpn.xwiki.plugin.laszlo.LaszloPlugin.class);

        private String laszloBaseURL;
    private String laszloPath;

    public LaszloPlugin(String name, String className, XWikiContext context) {
        super(name, className, context);
        init(context);
    }

    public String getName() {
        return "laszlo";
    }

    public Api getPluginApi(XWikiPluginInterface plugin, XWikiContext context) {
        return new LaszloPluginApi((LaszloPlugin) plugin, context);
    }

    public void flushCache() {
        try {
            File[] filelist = (new File(laszloPath)).listFiles();
              for (int i=0;i<filelist.length;i++) {
                try {
                    filelist[i].delete();
                } catch (Exception e) {}
              }
        } catch (Exception e) {}
    }

    public void init(XWikiContext context) {
        super.init(context);

        laszloBaseURL = context.getWiki().Param("xwiki.plugin.laszlo.baseurl", "/openlaszlo/xwiki/");
        if (!laszloBaseURL.endsWith("/"))
         laszloBaseURL = laszloBaseURL + "/";

        laszloPath = context.getWiki().Param("xwiki.plugin.laszlo.path", "./webapps/openlaszlo/xwiki/");
        if (!laszloPath.endsWith("/"))
         laszloPath = laszloPath + "/";

        flushCache();
    }

    public String writeLaszloFile(String name, String laszlocode) throws IOException, XWikiException {
         File laszloDir = new File(laszloPath);
         if (!laszloDir.exists())
           laszloDir.mkdirs();

        String filename = getFileName(name, laszlocode);

        laszlocode = Util.secureLaszloCode(laszlocode);

        File dfile = new File(laszloDir, filename);
         if (!dfile.exists()) {
             FileWriter fwriter = new FileWriter(dfile);
             fwriter.write(laszlocode);
             fwriter.flush();
             fwriter.close();
         }

         return filename;
    }

    public String getFileName(String name, String laszlocode) {
        if ((name==null)||name.trim().equals(""))
         name = "laszlo";

        String filename = name + "-" + Math.abs(laszlocode.hashCode()) + ".lzx";
        return filename;
    }

    public String getLaszloURL(String name, String laszlocode) throws IOException, XWikiException {
        String filename = writeLaszloFile(name, laszlocode);
        return laszloBaseURL + filename + "?lzt=swf";
    }

    public String getLaszloFlash(String name, String width, String height, String laszlocode, XWikiContext context) throws IOException, XWikiException {
        String url = getLaszloURL(name, laszlocode);
        return context.getWiki().getFlash(url, width, height, context);
    }
}