composeservlet.java

一个简单的java邮件系统

/*
 * @(#)ComposeServlet.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.MailUtils;
import oliva.mail.SimpleMessage;

public class ComposeServlet extends HttpServlet {

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

	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, "/logon"); 
			}
			myContext.setNoCache(response);

			  //Get parameters
			  String action = request.getParameter("action");
			  String msgno = request.getParameter("msgno");
			  String msguid = request.getParameter("msguid");  
			  String strPartNo = request.getParameter("partno");
			  int partno = -1;
			  if(strPartNo != null)
				partno = Integer.parseInt(strPartNo);  
			  String cp = request.getParameter("cp");
			  
			  SimpleMessage msg = null;
			  boolean isReply = false;
			  boolean isDelayed = false;
			  String fwdNo = null;
			  String newTo = null;
			  boolean initialLost = false;
			  
			  if(action != null) {
			    if(msgno != null) {
			      int iMsgNo = Integer.parseInt(msgno);

			      if(action.equalsIgnoreCase("reply")) {
			    	if(partno == -1) {
			    	  msg = myContext.mailBean.getReplyMessage(iMsgNo, msguid, cp, true);
			    	} else {
			    		msg = null;
						oliva.mail.Message message = myContext.getMessage(iMsgNo, msguid, null);
						if (message != null) {
							msg = myContext.mailBean.getReplyMessage(message.getRfc822Part(partno).apiMessage, cp, true);
						}    		  
			    	}		    
				    if(msg != null) {
				      msg.From = oliva.mail.MailUtils.getHtmlAddressList(msg.From, null);
				      msg.ReplyTo = oliva.mail.MailUtils.getHtmlAddressList(msg.ReplyTo, null);
				      msg.To = oliva.mail.MailUtils.getHtmlAddressList(msg.To, null);
				      msg.Cc = oliva.mail.MailUtils.getHtmlAddressList(msg.Cc, null);
			          if(msg.text != null) {
			            java.lang.StringBuffer sb = new java.lang.StringBuffer();
			            sb.append("\n\n\n-----Original Message-----\nFrom: " + msg.From +
			                      "\nSent: " + oliva.common.OlivaUtils.getDateString(msg.sentDate, myContext.lang, myContext.getI18nString("_settings.dateFormat")) +
			                      "\nTo: " + msg.To);
			            if(msg.Cc.length() != 0)
			              sb.append("\nCc: " + msg.Cc);
			            sb.append("\nSubject: " + msg.Subject + "\n\n");
			            sb.append(msg.text);
			            msg.text = sb.toString();
			          }
			          msg.Subject = MailUtils.getPrefixedSubject(msg.Subject, "Re");          
			          isReply = true;
			        } else
			          initialLost = true;
			      }
			      
			      if(action.equalsIgnoreCase("forward")) {
					  if(partno == -1) {
						  msg = myContext.mailBean.getReplyMessage(iMsgNo, msguid, cp, false);
					  } else {
						  msg = null;
						  oliva.mail.Message message = myContext.getMessage(iMsgNo, msguid, null);
			    		  if(message != null) {
			    			  msg = myContext.mailBean.getReplyMessage(message.getRfc822Part(partno).apiMessage, cp, false);
			    		  }    		  
					  }		    	  
					  if(msg != null) {
				  	    msg.Subject = MailUtils.getPrefixedSubject(msg.Subject, "Fwd");
				  	    fwdNo = String.valueOf(iMsgNo);
				      } else
				        initialLost = true;		  
				  }      
				}
			    
			    if(action.equalsIgnoreCase("new")) {
			        newTo = request.getParameter("to");
				if(newTo != null)
				    newTo = oliva.common.OlivaUtils.getStringInternals(newTo, Context.clntCp);
			    }
			    
			    if(action.equalsIgnoreCase("delayed")) {
				  msg = myContext.getDelayedMessage();
				  if(msg != null) {
					isDelayed = true;
					myContext.emptyDelayedMessage();
				  }
				}
			  }

			  if(newTo == null) newTo = "";

			// 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_compose_title")).append("\r\n");
		    sb.append("</title>\r\n");
		    sb.append("<link rel=\"stylesheet\" type=\"text/css\" href=\"./oliva.css\">\r\n");
		    sb.append("<script type=\"text/javascript\">\r\n");
		    sb.append("<!--\r\n");
		    sb.append("var i = 0\r\n");		    		    
		    sb.append("function moreFiles() {\r\n");
		    sb.append("  if(i > 10)\r\n");		    		    
		    sb.append("    return false;\r\n");
		    sb.append("  var td = document.getElementById(\"td1\");\r\n");		    		    
		    sb.append("  var k = 4;\r\n");		    
		    sb.append("  if(i < 4) k = 2;\r\n");
		    sb.append("  if(i < 2) k = 1;\r\n");
		    sb.append("  for(var j = 1; j <= k; j ++) {\r\n");
		    sb.append("    var div = document.createElement(\"div\");\r\n");
		    sb.append("    div.innerHTML = \"<input type=\\\"file\\\" size=\\\"40\\\" name=\\\"attachment\" + ++i + \"\\\"/><br/>\"\r\n");
		    sb.append("    td.appendChild(div);\r\n");
		    sb.append("  }\r\n");
		    sb.append("  return true;\r\n");
		    sb.append("}\r\n\r\n");
		    sb.append("function openWnd(url,wnd_name,width,height) {\r\n");
		    sb.append("  var save = window.open(url,wnd_name,'width='+width+',height='+height+',status=yes,menubar=no,resizable=yes,scrollbars=yes,left='+String((screen.width-width)/2)+',top='+String((screen.height-height)/2));\r\n");
		    sb.append("}\r\n");		
		    sb.append("// -->\r\n");
		    sb.append("</script>\r\n");		    		   
		    sb.append("</head>\r\n");		    		    		    
		    sb.append("<body 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 = 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_compose_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");
		    sb.append("<a href=\"javascript:{history.back();}\">")
		    	.append(myContext.getI18nString("_str_back")).append("</a>&nbsp;&nbsp;&nbsp;\r\n");
		    if(myContext._storage_enabled) {
		    	sb.append("<a href=\"./addr_form?action=search\">")
		    		.append(myContext.getI18nString("_str_addr_list_link"))
		    		.append("</a>&nbsp;&nbsp;&nbsp;\r\n");
		    }
		    sb.append("<a href=\"./list\">")
		    	.append(myContext.getI18nString("_str_inbox")).append("</a>&nbsp;&nbsp;&nbsp;\r\n");
		    sb.append("<a href=\"./logon?action=logout\">").append(myContext.getI18nString("_str_exit")).append("</a>&nbsp;&nbsp;&nbsp;\r\n");
		    sb.append("</font>\r\n");
		    
		    WebPane menuPane = new WebPane();
		    menuPane.setColor(WebPane.COLOR_CCCC99);
		    menuPane.setContent(sb.toString());
		    webPage.addPane(menuPane);		    

		    //Hint
		    sb = new StringBuffer();
			if (initialLost) {
				sb.append("<font size=\"2\" color=\"#cc0000\" face=\"Arial, Verdana, Tahoma\"><strong>")
					.append(myContext.getI18nString("_str_msg_lost"))