package imap;
import java.io.*;
import java.net.*;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;
// Using the IMAP protocol
// This servlet will take in the current mailbox, and email parameter
// and set the delete flag on that message. It will then return
// you to current mailbox view mode.
public class ImapDel extends HttpServlet {
// Defining resulting object out from request req and response res
public void doGet(HttpServletRequest req, HttpServletResponse res)
throws ServletException, IOException {
res.setContentType("text/html");
ServletOutputStream out=res.getOutputStream();
try {
// Retrieve login information from preset cookie
Cookie[] cookie=new Cookie[3];
String[] login=new String[3];
cookie=req.getCookies();
String username="0", password="0", hostname="0";
for(int i=0; i<=2; i++) {
login[i]=cookie[i].getName();
if (login[i].equals("username"))
username=cookie[i].getValue();
else if (login[i].equals("password"))
password=cookie[i].getValue();
else if (login[i].equals("hostname"))
hostname=cookie[i].getValue();
}
// Retrieve parameter information
String email=req.getParameter("email");
String mailbox=req.getParameter("mailbox");
// Creating a socket to the desired hostname's IMAP port
Socket socket=new Socket(hostname, 143);
PrintStream write_socket=new PrintStream(socket.getOutputStream());
DataInputStream read_socket=new DataInputStream(socket.getInputStream());
// Make sure target IMAP port is ready
String imap_res=read_socket.readLine();
if (! imap_res.startsWith("* OK"))
throw new ServletException("IMAP Server was not reachable this time");
int command=1;
// Make sure a correct username and/or password is provided
write_socket.println(command+" login "+username+" "+password);
imap_res=read_socket.readLine();
if (! imap_res.startsWith(command+" OK"))
throw new ServletException("Invalid Username and/or Password");
command++;
write_socket.println(command+" select "+mailbox);
imap_res=read_socket.readLine();
if (imap_res.startsWith(command+" BAD") || imap_res.startsWith(command+" NO") )
throw new ServletException("Invalid Mailbox");
while (! imap_res.startsWith(command+" OK"))
imap_res=read_socket.readLine();
command++;
write_socket.println(command+" store "+email+" +flags (\\deleted)");
command++;
String emails="0";
// Find out how much mail the user has
write_socket.println(command+" select "+mailbox);
imap_res=read_socket.readLine();
while (! imap_res.startsWith(command+" OK")) {
StringTokenizer breakline=new StringTokenizer(imap_res, " ");
breakline.nextToken();
String secondword=breakline.nextToken();
String thirdword=breakline.nextToken();
if (thirdword.equals("EXISTS"))
emails=secondword;
imap_res=read_socket.readLine();
}
out.println("");
out.println("Email for "+username+" on "+hostname+" in mailbox:"+mailbox+"");
out.println("Email for "+username+" on "+hostname+" in mailbox:"+mailbox+"
");
out.println("
Email #"+email+" has been set for deletion.
");
if (emails.equals("0"))
out.println("You have no mail.
");
else {
out.println("You have "+emails+" mail message(s).
");
command++;
// Retrieve the headers for all the messages and print out to html page
write_socket.println(command+" fetch 1:"+emails+" (body[header.fields (from date subject)])");
imap_res=read_socket.readLine();
while (! imap_res.startsWith(command+" OK")) {
if (imap_res.startsWith("*")) {
StringTokenizer breakline=new StringTokenizer(imap_res, " ");
breakline.nextToken();
String msgnum=breakline.nextToken();
out.println("EMAIL #"+msgnum+"");
out.println(" delete");
out.println("");
for(int header=1; header<=3; header++) {
imap_res=read_socket.readLine();
out.println(""+imap_res+"");
}
}
out.println("
");
imap_res=read_socket.readLine();
}
}
out.println("");
out.println("");
command++;
write_socket.println(command+" logout");
}
catch (ServletException e) {
out.println(""+e+"");
out.println(""+e+"");
}
catch (UnknownHostException e) {
out.println("Unknown Host");
out.println(""+e);
out.println("The hostname supplied is not recognized, try a different hostname.");
out.println("");
}
catch (IOException e) {
out.println("IOException");
out.println(""+e);
out.println("");
}
}
}