pdalistservlet.java

一个简单的java邮件系统

/*
 * @(#)PdaListServlet.java
 *
 * Copyright (C) 2006 Sergey Bredikhin
 *
 * This library 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 2.1 of the License, or (at your option) any later version.
 * 
 * This library 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.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

package olivax.webmail;

import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import oliva.common.OlivaUtils;
import oliva.mail.List;

public class PdaListServlet extends HttpServlet {

	static final long serialVersionUID = 1675075694621323211L;	
	
	public PdaListServlet() {
	}

	public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		PrintWriter out = null;
		try {
			request.setCharacterEncoding(Context.clntCp);
			response.setContentType("text/html; charset=" + Context.clntCp);			
			out = response.getWriter();
			HttpSession session = request.getSession();
			Context myContext = (Context) session.getAttribute("myContext");
			if(myContext == null) {
				myContext = new Context();
				session.setAttribute("myContext", myContext);
			}			
			if(!myContext.isLoggedIn()) {
				Context.forward(this, request, response, "/pda_logon"); 
			}
			myContext.setNoCache(response);
			// Get parameters
			String sPg = request.getParameter("pg");
			int iPg = -1;
			try {
				if (sPg != null)
					iPg = Integer.parseInt(sPg);
			} catch (Exception e) {
			}

			String action = request.getParameter("action");
			if (action != null) {
				if (action.equalsIgnoreCase("delete")) {
					myContext.deleteMessages(request);
					Context.forward(this, request, response, "/pda_list?action=none&pg="
							+ String.valueOf(iPg));
					return;
				}
			}

		    PdaPage pdaPage = new PdaPage();
		    pdaPage.setTitle(myContext.getI18nString("_str_list_title"));
		    
		    StringBuffer sb = new StringBuffer();
		    sb.append("<script language=\"JavaScript\">\r\n");
		    sb.append("<!--\r\n");
		    sb.append("var bcheck = true;\r\n");
		    sb.append("function selAll() {\r\n");
		    sb.append("  var listForm = document.getElementById(\"listform\");\r\n");
		    sb.append("  for(var i = 0; i < listForm.elements.length; i++) {\r\n");
		    sb.append("    if(listForm.elements[i].type == \"checkbox\") {\r\n");
		    sb.append("      listForm.elements[i].checked = bcheck;\r\n");
		    sb.append("    }\r\n");
		    sb.append("  }\r\n");
		    sb.append("  bcheck = !bcheck;\r\n");
		    sb.append("}\r\n");
		    sb.append("// -->\r\n");  
		    sb.append("</script>\r\n");
		    pdaPage.setScript(sb.toString());
		    
		    //Logo		    		    
		    pdaPage.addPane(myContext.getPdaLogo());
		    
		    //Title
		    PdaPane pdaPane = new PdaPane();
		    pdaPane.setColor(PdaPane.COLOR_CCCCCC);
		    pdaPane.setHeight("20");
		    pdaPane.setContent("<font size=\"3\" face=\"arial, tahoma, verdana\"><strong>" +
		    		myContext.getI18nString("_str_list_title") + "</strong></font>");
		    pdaPage.addPane(pdaPane);		    
		    
		    //Menu
		    sb = new StringBuffer();
		    sb.append("<font size=\"3\">");
		    sb.append("<a href=\"./pda_compose\">").append(myContext.getI18nString("_str_compose")).append("</a>&nbsp; &nbsp;");
		    sb.append("<a href=\"./pda_list?pg=").append(String.valueOf(iPg)).append("\">").append(myContext.getI18nString("_str_receive")).append("</a>&nbsp; &nbsp;");
		    sb.append("<a href=\"./pda_logon?action=logout\">").append(myContext.getI18nString("_str_exit")).append("</a>&nbsp; &nbsp;");
		    sb.append("</font>");
		    
		    PdaPane menuPane = new PdaPane();
		    menuPane.setColor(PdaPane.COLOR_FFFFFF);
		    menuPane.setContent(sb.toString());
		    pdaPage.addPane(menuPane);		    		    
		    	
		    //Total, pages
		    sb = new StringBuffer();		    
		    List list = myContext.mailBean.getMessageList(iPg, null);
		    sb.append("<font size=\"3\">").append(myContext.getI18nString("_str_total_msgs")).append(" ").append(String.valueOf(list.msgCount)).append("<br>");
			for (int i = 1; i <= list.pgCount; i++) {
				if (list.pgNo == i)
					sb.append("<strong>").append(i).append("</strong>");
				else
					sb.append("<a href=\"./pda_list?pg=" + i + "\">" + i + "</a>");
				sb.append("&nbsp; ");
			}
		    sb.append("</font>");

		    PdaPane pagesPane = new PdaPane();
		    pagesPane.setColor(PdaPane.COLOR_CCCC99);
		    pagesPane.setContent(sb.toString());
		    pdaPage.addPane(pagesPane);		    		    		    
		    
		    //Main page
		    sb = new StringBuffer();		    		    		    
		    sb.append("<form id=\"listform\" action=\"./pda_list\" method=\"POST\">\r\n");
		    sb.append("<table cellSpacing=\"1\" cellPadding=\"1\" width=\"100%\" bgColor=\"#999999\" border=\"0\">");
		      sb.append("<tr>");
		        sb.append("<td align=middle bgColor=#ccccff>")
		        	.append("<a onClick=\"javascript:{selAll();}\" href=\"#\"><font size=\"3\">")
		        	.append(myContext.getI18nString("_str_all"))
		        	.append("</font></a></td>");
		        sb.append("<td align=middle bgColor=#ccccff>N.</td>");
		        //sb.append("<td align=middle bgColor=#ccccff>").append(myContext.getI18nString("_str_list_number")).append("</td>");
		        sb.append("<td align=middle bgColor=#ccccff>").append(myContext.getI18nString("_str_list_from")).append("</td>");
		      sb.append("</tr>");
		    oliva.mail.MessageHeader hdr = null;
		    String colors[] = {"eeeeff", "fffeed"};
		    int color = 0;
		    for(int i = list.messages.size() - 1; i >= 0; i--) {
		    	hdr = (oliva.mail.MessageHeader)list.messages.elementAt(i);
		    	hdr.From = oliva.mail.MailUtils.getHtmlAddressList(hdr.From, null);      
		    	sb.append("<tr>");
		        sb.append("<td align=\"right\" bgColor=\"#").append(colors[color]).append("\"><input type=\"checkbox\" value=\"1\" name=\"no").append(String.valueOf(hdr.msgNo)).append("uid").append(String.valueOf(hdr.UID)).append("\"></td>");
		        sb.append("<td align=right bgColor=#").append(colors[color]).append("><font size=\"3\">");
		        sb.append(hdr.msgNo);
/*		        
		        sb.append("<a class=\"list\" href=\"./pda_message?msgno=")
		        	.append(String.valueOf(hdr.msgNo)).append("&msguid=").append(String.valueOf(hdr.UID)).append("\">")
		        	.append(String.valueOf(hdr.msgNo)).append("</a>");
*/
		        if (hdr.isHighlyImportant()) {
		        	sb.append("<font color=\"#990033\" size=\"3\"><strong>!</strong></font>");
		        	//sb.append("<img src=\"imptnt.gif\" width=\"16\" height=\"16\">");
				}		        
		        if(hdr.hasAtt) {
		        	sb.append("<font size=\"3\"><strong>@</strong></font>");
		        	//sb.append("<img src=\"att.gif\" width=\"15\" height=\"15\">");
		        }	
		        sb.append("</font></td>");
		        sb.append("<td bgColor=#").append(colors[color]).append("><font size=\"3\">");
		        sb.append("<a class=\"list\" href=\"./pda_message?msgno=").append(String.valueOf(hdr.msgNo)).append("&msguid=").append(String.valueOf(hdr.UID)).append("\">");
		        sb.append(hdr.From).append(" / ")
		        	.append(hdr.Subject).append(" / ");
		        sb.append("</a>");
		        sb.append(oliva.common.OlivaUtils.getDateString(hdr.sentDate, myContext.lang, myContext.getI18nString("_settings.shortDateFormat"))).append(" / ");
		        sb.append(OlivaUtils.getSizeString(hdr.msgSize));		        
/*
		        sb.append("<a class=\"list\" href=\"./pda_message?msgno=").append(String.valueOf(hdr.msgNo)).append("&msguid=").append(String.valueOf(hdr.UID)).append("\">").append(hdr.From).append("</a>");
		        sb.append(",&nbsp;&nbsp;&nbsp;");
		        sb.append("<a class=\"list\" href=\"./pda_message?msgno=").append(String.valueOf(hdr.msgNo)).append("&msguid=").append(String.valueOf(hdr.UID)).append("\">").append(hdr.Subject).append("</a>");
		        sb.append(",&nbsp;&nbsp;&nbsp;");
		        sb.append(OlivaUtils.getSizeString(hdr.msgSize));
*/		        
		        sb.append("</font></td>");
		        sb.append("</tr>");
		        color = 1 - color;
		    }
		    sb.append("</table>");
		    sb.append("<input type=\"hidden\" name=\"pg\" value=\"").append(String.valueOf(iPg)).append("\">");
		    sb.append("<input type=\"hidden\" value=\"delete\" name=\"action\"><br>");
		    sb.append("<input type=submit value=\"").append(myContext.getI18nString("_str_list_delete")).append("\">");
		    sb.append("</form>\r\n");
		    
		    pdaPane = new PdaPane();
		    pdaPane.setColor(PdaPane.COLOR_9999CC);
		    pdaPane.setContent(sb.toString());
		    pdaPage.addPane(pdaPane);		    		    

		    // Total, pages		    
		    pdaPage.addPane(pagesPane);
		    
		    //Menu
		    pdaPage.addPane(menuPane);
		    
		    //Sublogo
		    pdaPane = new PdaPane();
		    pdaPane.setColor(PdaPane.COLOR_CCFF99);
		    pdaPane.setHeight("20");
		    pdaPane.setContent("<font size=\"3\" color=\"#999966\" face=\"arial, tahoma, verdana\"><strong><i>"
		    		+ myContext.getSenderDomain() + "</i></strong></font>");
		    pdaPage.addPane(pdaPane);		    		    		    
		    
		    pdaPage.show(out);

		    out.flush();
		    out.close();	    
		} catch (Exception e) {
			try {
				Context.sendErrorRedirect(this, request, response, "/pda_error", e);
			} catch (Exception exc) {				
				exc.printStackTrace();				
			}
		}		
	}

	public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		doGet(request, response);
	}
}