001: package com.quadcap.pop3.client;
002:
003: /* Copyright 1997 - 2003 Quadcap Software. All rights reserved.
004: *
005: * This software is distributed under the Quadcap Free Software License.
006: * This software may be used or modified for any purpose, personal or
007: * commercial. Open Source redistributions are permitted. Commercial
008: * redistribution of larger works derived from, or works which bundle
009: * this software requires a "Commercial Redistribution License"; see
010: * http://www.quadcap.com/purchase.
011: *
012: * Redistributions qualify as "Open Source" under one of the following terms:
013: *
014: * Redistributions are made at no charge beyond the reasonable cost of
015: * materials and delivery.
016: *
017: * Redistributions are accompanied by a copy of the Source Code or by an
018: * irrevocable offer to provide a copy of the Source Code for up to three
019: * years at the cost of materials and delivery. Such redistributions
020: * must allow further use, modification, and redistribution of the Source
021: * Code under substantially the same terms as this license.
022: *
023: * Redistributions of source code must retain the copyright notices as they
024: * appear in each source code file, these license terms, and the
025: * disclaimer/limitation of liability set forth as paragraph 6 below.
026: *
027: * Redistributions in binary form must reproduce this Copyright Notice,
028: * these license terms, and the disclaimer/limitation of liability set
029: * forth as paragraph 6 below, in the documentation and/or other materials
030: * provided with the distribution.
031: *
032: * The Software is provided on an "AS IS" basis. No warranty is
033: * provided that the Software is free of defects, or fit for a
034: * particular purpose.
035: *
036: * Limitation of Liability. Quadcap Software shall not be liable
037: * for any damages suffered by the Licensee or any third party resulting
038: * from use of the Software.
039: */
040:
041: import java.util.Date;
042: import java.util.Hashtable;
043: import java.util.Vector;
044:
045: import java.io.IOException;
046: import java.io.InputStream;
047:
048: import com.quadcap.util.Debug;
049:
050: import com.quadcap.util.threads.Command;
051:
052: /**
053: * This simple Pop3 agent transfers all new messages in a remote Pop3
054: * mailbox into the specified folder in the quadcap message store.
055: *
056: * <p>A more sophisticated agent would scan the headers first and apply
057: * filters to certain messages without having to fetch the bodies.
058: *
059: * @author Stan Bailes
060: */
061: public class Agent implements Runnable {
062: String host;
063: String user;
064: String password;
065: Session pop3 = null;
066:
067: /**
068: * Create a new Agent with the specified profile name
069: *
070: * @param profileName the name of the profile.
071: */
072: public Agent(String host, String user, String password) {
073: this .host = host;
074: this .user = user;
075: this .password = password;
076: }
077:
078: /**
079: * The Command callback object which invokes this agent.
080: */
081: public void run() {
082: Debug.println("[" + user + "] begin");
083: try {
084: if (pop3 == null)
085: pop3 = new Session(host, 110);
086: pop3.connect();
087:
088: if (pop3.user(user) != Session.OK) {
089: throw new IOException("user failed: " + user);
090: }
091: if (pop3.pass(password) != Session.OK) {
092: throw new IOException("password failed: " + user);
093: }
094: getAndDeleteMail();
095: } catch (IOException e) {
096: Debug.print(e);
097:
098: } finally {
099: try {
100: pop3.quit();
101: } catch (IOException e) {
102: Debug.print(e);
103: }
104: // ---- we're about to "go to sleep", potentially for a long time,
105: // ---- so allow these objects to be gc'ed.
106: pop3 = null;
107: }
108: Debug.println("[" + user + "] done");
109: }
110:
111: /**
112: * The simple <i>delete from server</i> case. Get all of the mail,
113: * put it in the right folder, then delete it from the server.
114: */
115: void getAndDeleteMail() throws IOException {
116: Vector r = pop3.stat();
117: int cnt = Integer.parseInt(r.elementAt(1).toString());
118: byte[] buf = new byte[16384];
119: for (int i = 1; i <= cnt; i++) {
120: Debug.println("[" + user + "] getting message " + i);
121: InputStream is = pop3.retr(i);
122: if (is != null) {
123: int xcnt = 0;
124: while ((xcnt = is.read(buf)) > 0)
125: continue;
126: is.close();
127: }
128: pop3.dele(i);
129: }
130: Debug.println("[" + user + "] deleted " + cnt + " messages");
131: }
132:
133: public static void main(String[] args) {
134: while (true) {
135: for (int i = 0; i < 100; i++) {
136: Agent agent = new Agent("nt1", "stan" + i, "stan" + i);
137: agent.run();
138: }
139: }
140: }
141: }
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