pdalogonservlet.java

一个简单的java邮件系统

/*
 * @(#)PdaLogonServlet.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;

public class PdaLogonServlet extends HttpServlet {

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

	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);
			}
			myContext.setNoCache(response);
		    myContext.loadSettings(request);
		    myContext.setLanguage(request);

		    String errorText = null;
		    boolean isLogon = true;
		    try {
		        isLogon = myContext.isLogonNeeded(request);
		    } catch	(javax.mail.AuthenticationFailedException afe) {
		        if (afe.toString().toLowerCase().indexOf("eof on socket") != -1)
		            throw afe;
		        else
		            errorText = myContext.getI18nString("_str_auth_failed");
		    } 

		    myContext.setRichContent(false);
			
		    if(!isLogon) {
		      if(myContext.getDelayedMessage() != null) {
		    	  Context.forward(this, request, response, "/pda_compose?action=delayed");
		      } else {
		    	  Context.forward(this, request, response, "/pda_list");
		      }
		    }

		    PdaPage pdaPage = new PdaPage();
		    pdaPage.setTitle(myContext.getI18nString("_str_login_title"));
		    
		    //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_login_title") + "</strong></font>");
		    pdaPage.addPane(pdaPane);		    
		    
		    //Menu
		    StringBuffer sb = new StringBuffer();
		    sb.append("<a href=\"./logon?ui=pc\"><font size=\"3\">").append(myContext.getI18nString("_str_full_version")).append("</font></a>");
		    sb.append("<br>");
		    sb.append("<font size=\"3\">");
		    for (java.util.Enumeration pn = myContext.langProps.propertyNames(); pn
					.hasMoreElements();) {
				String pkey = (String) pn.nextElement();
				String pvalue = myContext.langProps.getProperty(pkey)
						.replaceAll("\\s", "&nbsp;");
				if (pkey.equalsIgnoreCase(myContext.lang)) {
					sb.append(pvalue).append("   ");
				} else {
					sb.append("<a href=\"./pda_logon?lang=").append(pkey)
							.append("\">").append(pvalue).append(
									"</a>&nbsp; &nbsp;");
				}
			} 
		    sb.append("</font>");
		    
		    PdaPane menuPane = new PdaPane();
		    menuPane.setColor(PdaPane.COLOR_FFFFFF);
		    menuPane.setContent(sb.toString());
		    pdaPage.addPane(menuPane);		    		    
		    		    
		    //Hint
		    if (errorText != null) {
				sb = new StringBuffer();
				sb.append("<strong><font size=\"3\" color=\"red\">").append(
						errorText).append("</font></strong>");
				pdaPane = new PdaPane();
				pdaPane.setColor(PdaPane.COLOR_CCCCCC);
				pdaPane.setContent(sb.toString());
				pdaPage.addPane(pdaPane);
			} else if (myContext.getDelayedMessage() != null) {
				sb = new StringBuffer();
				sb.append("<strong><font size=\"3\" color=\"#ffff00\">")
						.append(myContext.getI18nString("_str_hint_delayed"))
						.append("</font></strong>");
				pdaPane = new PdaPane();
				pdaPane.setColor(PdaPane.COLOR_CCCCCC);
				pdaPane.setContent(sb.toString());
				pdaPage.addPane(pdaPane);
			}
		    
		    // Main page
		    sb = new StringBuffer();		    		    
		    sb.append("<form action=\"./pda_logon\" method=\"post\">");
		    sb.append("<table border=\"0\" cellspacing=\"1\" cellpadding=\"1\"  bgcolor=\"#999999\" width=\"100%\">");
		    sb.append("<tr>");
		    sb.append("<td bgcolor=\"#ccccff\">").append(myContext.getI18nString("_str_username")).append("</td>");
		    sb.append("<td bgcolor=\"#eeeeff\"><input type=\"text\" name=\"user\" size=\"16\"></td>");
		    sb.append("</tr>");
		    sb.append("<tr>");
		    sb.append("<td bgcolor=\"#ccccff\">").append(myContext.getI18nString("_str_password")).append("</td>");
		    sb.append("<td bgcolor=\"#eeeeff\"><input type=\"password\" name=\"pass\" size=\"15\"></td>");
		    sb.append("</tr>");
		    sb.append("<tr>");
		    sb.append("<td bgcolor=\"#eeeeff\">&nbsp;</td>");
		    sb.append("<td bgcolor=\"#eeeeff\"><input type=\"submit\" value=\"").append(myContext.getI18nString("_str_login_btn")).append("\"></td>");
		    sb.append("</tr>");
		    sb.append("</table>");
		    sb.append("</form>");
		    
		    pdaPane = new PdaPane();
		    pdaPane.setColor(PdaPane.COLOR_9999CC);
		    pdaPane.setContent(sb.toString());
		    pdaPage.addPane(pdaPane);		    		    

		    //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);
	}
}