dsnbounce.java

java 开发的邮件服务器平台。支持以下协议。 协议可以修改为自己的专门标识

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 * Copyright (c) 2000-2004 The Apache Software Foundation.             *
 * All rights reserved.                                                *
 * ------------------------------------------------------------------- *
 * Licensed under the Apache License, Version 2.0 (the "License"); you *
 * may not use this file except in compliance with the License. You    *
 * may obtain a copy of the License at:                                *
 *                                                                     *
 *     http://www.apache.org/licenses/LICENSE-2.0                      *
 *                                                                     *
 * Unless required by applicable law or agreed to in writing, software *
 * distributed under the License is distributed on an "AS IS" BASIS,   *
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or     *
 * implied.  See the License for the specific language governing       *
 * permissions and limitations under the License.                      *
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package org.apache.james.transport.mailets;

import java.io.PrintWriter;
import java.io.StringWriter;
import java.net.ConnectException;
import java.net.InetAddress;
import java.net.SocketException;
import java.net.UnknownHostException;
import java.util.Collection;
import java.util.Date;
import java.util.HashSet;
import java.util.Iterator;

import javax.mail.MessagingException;
import javax.mail.SendFailedException;
import javax.mail.Session;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMultipart;

import javax.activation.CommandMap;
import javax.activation.MailcapCommandMap;

import org.apache.james.core.MailImpl;
import org.apache.mailet.Mail;
import org.apache.mailet.MailAddress;
import org.apache.james.util.RFC2822Headers;
import org.apache.james.util.RFC822DateFormat;
import org.apache.james.Constants;
import org.apache.james.util.mail.MimeMultipartReport;

import org.apache.oro.text.regex.MalformedPatternException;
import org.apache.oro.text.regex.Pattern;
import org.apache.oro.text.regex.Perl5Compiler;
import org.apache.oro.text.regex.Perl5Matcher;
import org.apache.oro.text.regex.MatchResult;




/**
 *
 * <P>Generates a Delivery Status Notification (DSN)
 * Note that this is different than a mail-client's
 * reply, which would use the Reply-To or From header.</P>
 * <P>Bounced messages are attached in their entirety (headers and
 * content) and the resulting MIME part type is "message/rfc822".<BR>
 * The reverse-path and the Return-Path header of the response is set to "null" ("<>"),
 * meaning that no reply should be sent.</P>
 * <P>A sender of the notification message can optionally be specified.
 * If one is not specified, the postmaster's address will be used.<BR>
 * <P>Supports the <CODE>passThrough</CODE> init parameter (true if missing).</P>
 *
 * <P>Sample configuration:</P>
 * <PRE><CODE>
 * &lt;mailet match="All" class="DSNBounce">
 *   &lt;sender&gt;<I>an address or postmaster or sender or unaltered, 
 default=postmaster</I>&lt;/sender&gt;
 *   &lt;prefix&gt;<I>optional subject prefix prepended to the original 
 message</I>&lt;/prefix&gt;
 *   &lt;attachment&gt;<I>message or none, default=message</I>&lt;/attachment&gt;
 *   &lt;messageString&gt;<I>the message sent in the bounce, the first occurrence of the pattern [machine] is replaced with the name of the executing machine, default=Hi. This is the James mail server at [machine] ... </I>&lt;/messageString&gt;
 *   &lt;passThrough&gt;<I>true or false, default=true</I>&lt;/passThrough&gt;
 *   &lt;debug&gt;<I>true or false, default=false</I>&lt;/debug&gt;
 * &lt;/mailet&gt;
 * </CODE></PRE>
 *
 * @see org.apache.james.transport.mailets.AbstractNotify
 */



public class DSNBounce extends AbstractNotify {


    /**
     * Constants and getters for RFC 3463 Enhanced Mail System Status Codes
     *
     * I suggest do extract this inner class for future use in the smtp-handler
     *
     */
    public static class DSNStatus {
        // status code classes
        /**
         * Success
         */
        public static final int SUCCESS = 2;

        /**
         * Persistent Transient Failure
         */
        public static final int TRANSIENT = 4;

        /**
         * Permanent Failure
         */
        public static final int PERMANENT = 5;

        // subjects and details

        /**
         * Other or Undefined Status
         */
        public static final int UNDEFINED = 0;

        /**
         * Other undefined status
         */
        public static final String UNDEFINED_STATUS = "0.0";

        /**
         * Addressing Status
         */
        public static final int ADDRESS = 1;

        /**
         * Other address status
         */
        public static final String ADDRESS_OTHER = "1.0";

        /**
         * Bad destination mailbox address
         */
        public static final String ADDRESS_MAILBOX = "1.1";

        /**
         * Bad destination system address
         */
        public static final String ADDRESS_SYSTEM = "1.2";

        /**
         * Bad destination mailbox address syntax
         */
        public static final String ADDRESS_SYNTAX = "1.3";

        /**
         * Destination mailbox address ambiguous
         */
        public static final String ADDRESS_AMBIGUOUS = "1.4";

        /**
         * Destination Address valid
         */
        public static final String ADDRESS_VALID = "1.5";

        /**
         * Destimation mailbox has moved, no forwarding address
         */
        public static final String ADDRESS_MOVED = "1.6";

        /**
         * Bad sender's mailbox address syntax
         */
        public static final String ADDRESS_SYNTAX_SENDER = "1.7";

        /**
         * Bad sender's system address
         */
        public static final String ADDRESS_SYSTEM_SENDER = "1.8";


        /**
         * Mailbox Status
         */
        public static final int MAILBOX = 2;

        /**
         * Other or Undefined Mailbox Status
         */
        public static final String MAILBOX_OTHER = "2.0";

        /**
         * Mailbox disabled, not accepting messages
         */
        public static final String MAILBOX_DISABLED = "2.1";

        /**
         * Mailbox full
         */
        public static final String MAILBOX_FULL = "2.2";

        /**
         * Message length exceeds administrative limit
         */
        public static final String MAILBOX_MSG_TOO_BIG = "2.3";

        /**
         * Mailing list expansion problem
         */
        public static final String MAILBOX_LIST_EXPANSION = "2.4";


        /**
         * Mail System Status
         */
        public static final int SYSTEM = 3;

        /**
         * Other or undefined mail system status
         */
        public static final String SYSTEM_OTHER = "3.0";

        /**
         * Mail system full
         */
        public static final String SYSTEM_FULL = "3.1";

        /**
         * System not accepting messages
         */
        public static final String SYSTEM_NOT_ACCEPTING = "3.2";

        /**
         * System not capable of selected features
         */
        public static final String SYSTEM_NOT_CAPABLE = "3.3";

        /**
         * Message too big for system
         */
        public static final String SYSTEM_MSG_TOO_BIG = "3.4";

        /**
         * System incorrectly configured
         */
        public static final String SYSTEM_CFG_ERROR = "3.5";


        /**
         * Network and Routing Status
         */
        public static final int NETWORK = 4;

        /**
         * Other or undefined network or routing status
         */
        public static final String NETWORK_OTHER = "4.0";

        /**
         * No answer form host
         */
        public static final String NETWORK_NO_ANSWER = "4.1";

        /**
         * Bad Connection
         */
        public static final String NETWORK_CONNECTION = "4.2";

        /**
         * Directory server failure
         */
        public static final String NETWORK_DIR_SERVER = "4.3";

        /**
         * Unable to route
         */
        public static final String NETWORK_ROUTE = "4.4";

        /**
         * Mail system congestion
         */
        public static final String NETWORK_CONGESTION = "4.5";

        /**
         * Routing loop detected
         */
        public static final String NETWORK_LOOP = "4.6";

        /**
         * Delivery time expired
         */
        public static final String NETWORK_EXPIRED = "4.7";


        /**
         * Mail Delivery Protocol Status
         */
        public static final int DELIVERY = 5;

        /**
         * Other or undefined (SMTP) protocol status
         */
        public static final String DELIVERY_OTHER = "5.0";

        /**
         * Invalid command
         */
        public static final String DELIVERY_INVALID_CMD = "5.1";

        /**
         * Syntax error
         */
        public static final String DELIVERY_SYNTAX = "5.2";

        /**
         * Too many recipients
         */
        public static final String DELIVERY_TOO_MANY_REC = "5.3";

        /**
         * Invalid command arguments
         */
        public static final String DELIVERY_INVALID_ARG = "5.4";

        /**
         * Wrong protocol version
         */