From 16b2eb3e004b5c88a07ebd07064dacb0743f201f Mon Sep 17 00:00:00 2001
From: adam <adam@megacz.com>
Date: Sat, 19 Jun 2004 04:24:38 +0000
Subject: [PATCH] cleaned up POP3 interface

darcs-hash:20040619042438-5007d-7386a64230cb369fa01bf121899fa7b0938b6fa3.gz
---
 src/org/ibex/mail/protocol/POP3.java |  116 +++++++++++++++++-----------------
 1 file changed, 57 insertions(+), 59 deletions(-)

diff --git a/src/org/ibex/mail/protocol/POP3.java b/src/org/ibex/mail/protocol/POP3.java
index e34311c..a8988a4 100644
--- a/src/org/ibex/mail/protocol/POP3.java
+++ b/src/org/ibex/mail/protocol/POP3.java
@@ -3,11 +3,8 @@ import java.net.*;
 import java.io.*;
 
 // Next step: implement both sides using the POP interface
+public interface POP3 {
 
-class POPException extends IOException {
-}
-
-interface POP {
     public abstract void userpass(String user, String pass) throws POPException;
     public abstract void apop(String user, String digest) throws POPException;
     public abstract BufferedReader top(int m, int maxlines);
@@ -20,71 +17,72 @@ interface POP {
     public abstract void rset(int m);
     public abstract String uidl(int m);
     public abstract String[] uidl();    // FIXME, also needs message number
-}
+    public static class POPException extends IOException { }
 
-public class POP3 extends MessageProtocol {
+    public static class Server {
 
-    public static void main(String[] args) throws Exception {
-        ServerSocket ss = new ServerSocket(110);
-        while(true) {
-            System.out.println("listening");
-            final Socket s = ss.accept();
-            System.out.println("connected");
-            new Thread() {
-                public void run() {
-                    try {
-                        service(s);
-                    } catch (Exception e) {
-                        e.printStackTrace();
+        public static void main(String[] args) throws Exception {
+            ServerSocket ss = new ServerSocket(110);
+            while(true) {
+                System.out.println("listening");
+                final Socket s = ss.accept();
+                System.out.println("connected");
+                new Thread() {
+                    public void run() {
+                        try {
+                            service(s);
+                        } catch (Exception e) {
+                            e.printStackTrace();
+                        }
                     }
-                }
-            }.start();
+                }.start();
+            }
         }
-    }
 
-    public static void service(Socket s) throws IOException {
-        BufferedReader br = new BufferedReader(new InputStreamReader(s.getInputStream()));
-        PrintWriter pw = new PrintWriter(new OutputStreamWriter(s.getOutputStream()));
-        pw.print("+OK POP3 server ready\r\n");
-        pw.flush();
-        String user = null;
-        String pass = null;
-        while(true) {
-            String command = br.readLine().trim();
-            System.out.println("command: " + command);
-            if (command.toUpperCase().startsWith("QUIT ")) {
-                s.close();
-                return;
-            } else if (command.toUpperCase().startsWith("USER ")) {
-                user = command.substring(5).trim();
-                pw.print("+OK now give me your password\r\n");
-                pw.flush();
-            } else if (command.toUpperCase().startsWith("PASS ")) {
-                if (user == null) {
-                    pw.print("-ERR I need your password first\r\n");
+        public static void service(Socket s) throws IOException {
+            BufferedReader br = new BufferedReader(new InputStreamReader(s.getInputStream()));
+            PrintWriter pw = new PrintWriter(new OutputStreamWriter(s.getOutputStream()));
+            pw.print("+OK POP3 server ready\r\n");
+            pw.flush();
+            String user = null;
+            String pass = null;
+            while(true) {
+                String command = br.readLine().trim();
+                System.out.println("command: " + command);
+                if (command.toUpperCase().startsWith("QUIT ")) {
+                    s.close();
+                    return;
+                } else if (command.toUpperCase().startsWith("USER ")) {
+                    user = command.substring(5).trim();
+                    pw.print("+OK now give me your password\r\n");
                     pw.flush();
-                } else {
-                    pass = command.substring(5).trim();
-                    break;
+                } else if (command.toUpperCase().startsWith("PASS ")) {
+                    if (user == null) {
+                        pw.print("-ERR I need your password first\r\n");
+                        pw.flush();
+                    } else {
+                        pass = command.substring(5).trim();
+                        break;
+                    }
                 }
             }
-        }
-        System.out.println("login from " + user + " / " + pass);
-        String server = user.substring(user.indexOf('@') + 1);
-        user = user.substring(0, user.indexOf('@'));
-        Socket pop = new Socket(InetAddress.getByName(server), 117);
+            System.out.println("login from " + user + " / " + pass);
+            String server = user.substring(user.indexOf('@') + 1);
+            user = user.substring(0, user.indexOf('@'));
+            Socket pop = new Socket(InetAddress.getByName(server), 117);
 
-        BufferedReader br2 = new BufferedReader(new InputStreamReader(pop.getInputStream()));
-        PrintWriter pw2 = new PrintWriter(new OutputStreamWriter(pop.getOutputStream()));
+            BufferedReader br2 = new BufferedReader(new InputStreamReader(pop.getInputStream()));
+            PrintWriter pw2 = new PrintWriter(new OutputStreamWriter(pop.getOutputStream()));
 
-        System.out.println("pop said " + br2.readLine());
-        pw2.print("USER " + user + "\r\n");
-        pw2.flush();
-        System.out.println("pop said " + br2.readLine());
-        pw2.print("PASS " + pass + "\r\n");
-        pw2.flush();
-        System.out.println("pop said " + br2.readLine());
+            System.out.println("pop said " + br2.readLine());
+            pw2.print("USER " + user + "\r\n");
+            pw2.flush();
+            System.out.println("pop said " + br2.readLine());
+            pw2.print("PASS " + pass + "\r\n");
+            pw2.flush();
+            System.out.println("pop said " + br2.readLine());
 
-        s.close();
+            s.close();
+        }
     }
 }
-- 
1.7.10.4