📄 adminservlet.java

📁 一个简单的java邮件系统
💻 JAVA
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/*
 * @(#)AdminServlet.java
 *
 * Copyright (C) 2007 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;

public class AdminServlet extends HttpServlet {
	
	static final long serialVersionUID = 3335075694621323001L;	

	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);
		    boolean isLogon = myContext.isAdminLogonNeeded(request);			
		    if(!isLogon) {
		    	Context.forward(this, request, response, "/user_form?action=search");
		    }
		    
		    //Main page
		    StringBuffer sb = new StringBuffer();
		    sb.append("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">\r\n");
		    sb.append("<html>\r\n");
		    sb.append("<head>\r\n");
		    sb.append("<meta http-equiv=\"Content-Type\" content=\"text/html; charset=").append(Context.clntCp).append("\">\r\n");
//		    sb.append("<meta http-equiv=\"Content-Language\" content=\"ru-RU\">\r\n");
		    sb.append("<meta HTTP-EQUIV=\"PRAGMA\" content=\"NO-CACHE\">\r\n");
		    sb.append("<title>\r\n");
		    sb.append(myContext.getI18nString("_str_login_title")).append("\r\n");
		    sb.append("</title>\r\n");
		    sb.append("<link rel=\"stylesheet\" type=\"text/css\" href=\"./oliva.css\">\r\n");
		    sb.append("</head>\r\n");
		    sb.append("<body onload=\"document.getElementsByName('user')[0].focus()\" link=\"#000033\" alink=\"#000033\" vlink=\"#000033\">\r\n");
		    out.print(sb.toString());

		    //Logo		    
		    WebPage webPage = new WebPage();
		    webPage.addPane(myContext.getWebLogo());

		    //Title
		    WebPane webPane = new WebPane();		    
		    webPane.setColor(WebPane.COLOR_CCCCCC);
		    webPane.setWidth("100%");
		    webPane.setHeight("35");
		    webPane.setContent("<font size=\"3\" face=\"arial, tahoma, verdana\"><strong>" +
		    		myContext.getI18nString("_str_login_title") + "</strong></font>");
		    webPage.addPaneToSameRow(webPane);		    

		    //Sublogo
		    webPane = new WebPane();
		    webPane.setColor(WebPane.COLOR_CCFF99);
		    webPane.setWidth("20%");
		    webPane.setHeight("35");
		    webPane.setContent("<font size=\"4\" color=\"#999966\" face=\"arial, tahoma, verdana\"><strong><i>"
		    		+ myContext.getSenderDomain() + "</i></strong></font>");
		    webPage.addPaneToSameRow(webPane);		    
		    
		    //Menu
		    sb = new StringBuffer();
		    sb.append("<font size=\"2\">\r\n");
		    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("&nbsp;&nbsp;&nbsp;");
		         } else {
		        	 sb.append("<a href=\"./admin?lang=").append(pkey).append("\">").append(pvalue).append("</a>&nbsp;&nbsp;&nbsp;");
		         }
		    } 		    
			sb.append("</font>\r\n");
		    
		    WebPane menuPane = new WebPane();
		    menuPane.setColor(WebPane.COLOR_CCCC99);
		    menuPane.setContent(sb.toString());
		    webPage.addPane(menuPane);		    

		    //Hint
		    if(!myContext._admin_enabled) {
			    webPane = new WebPane();
			    webPane.setColor(WebPane.COLOR_CCCCCC);
			    webPane.setContent("<font size=\"2\" color=\"#cc0000\" face=\"Arial, Verdana, Tahoma\"><strong>" + 
			    		myContext.getI18nString("_str_admin_disabled") + "</strong></font>");
			    webPage.addPane(webPane);		    		    			    		    	
		    }		    
		    		    
		    //Main pane
		    sb = new StringBuffer();
		    sb.append("<table border=\"0\" cellspacing=\"1\" cellpadding=\"1\">\r\n");
		    sb.append("<form action=\"./admin\" method=\"post\">\r\n");
		    sb.append("<tr>\r\n");
		    sb.append("<td width=\"110\" align=\"right\" style=\"{color: #ffffcc; font-size=10pt; font-family: Arial, Helvetica, sans-serif; font-weight: bold;}\"><font size=\"3\">")
		    	.append(myContext.getI18nString("_str_username")).append("</font></td>\r\n");
		    sb.append("<td><input type=\"text\" name=\"user\" size=\"30\" value=\"")
		    	.append(OlivaUtils.nvl(request.getParameter("user"))).append("\"></td>\r\n");
		    sb.append("</tr>\r\n");
		    sb.append("<tr>\r\n");
		    sb.append("<td align=\"right\" style=\"{color: #ffffcc; font-size=10pt; font-family: Arial, Helvetica, sans-serif; font-weight: bold;}\"><font size=\"3\">").append(myContext.getI18nString("_str_password")).append("</font></td>\r\n");
		    sb.append("<td><input type=\"password\" name=\"pass\" size=\"30\"></td>\r\n");
		    sb.append("</tr>\r\n");
		    sb.append("<tr>\r\n");
		    sb.append("<td>&nbsp;</td>\r\n");
		    sb.append("<td><input type=\"submit\" value=\"").append(myContext.getI18nString("_str_login_btn")).append("\"></td>\r\n");
		    sb.append("</tr>\r\n");
		    sb.append("</form>\r\n");
		    sb.append("</table>\r\n");		    
		    
		    webPane = new WebPane();
		    webPane.setColor(WebPane.COLOR_9999CC);
		    webPane.setHeight("200");
		    webPane.setStyle("{background-image: url('./backvw.png'); background-repeat: no-repeat; background-position: top left;}");
		    webPane.setContent(sb.toString());
		    webPage.addPane(webPane);		    

		    //Menu		    
		    webPage.addPane(menuPane);
		    
		    webPage.show(out);
		    
		    sb = new StringBuffer();
		    sb.append("</body>\r\n");
		    sb.append("</html>\r\n");
		    out.print(sb.toString());
		    out.flush();
		    out.close();	    
		} catch (Exception e) {
			try {				
				Context.sendErrorRedirect(this, request, response, "/error", e);
			} catch (Exception exc) {				
				exc.printStackTrace();				
			}
		}		
	}

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

}
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