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1 package org.apache.commons.net.smtp; 2 3 /* ==================================================================== 4 * The Apache Software License, Version 1.1 5 * 6 * Copyright (c) 2001 The Apache Software Foundation. All rights 7 * reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in 18 * the documentation and/or other materials provided with the 19 * distribution. 20 * 21 * 3. The end-user documentation included with the redistribution, 22 * if any, must include the following acknowledgment: 23 * "This product includes software developed by the 24 * Apache Software Foundation (http://www.apache.org/)." 25 * Alternately, this acknowledgment may appear in the software itself, 26 * if and wherever such third-party acknowledgments normally appear. 27 * 28 * 4. The names "Apache" and "Apache Software Foundation" and 29 * "Apache Commons" must not be used to endorse or promote products 30 * derived from this software without prior written permission. For 31 * written permission, please contact apache@apache.org. 32 * 33 * 5. Products derived from this software may not be called "Apache", 34 * nor may "Apache" appear in their name, without 35 * prior written permission of the Apache Software Foundation. 36 * 37 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED 38 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 39 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 40 * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR 41 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 42 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 43 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 44 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 45 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 46 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 47 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 48 * SUCH DAMAGE. 49 * ==================================================================== 50 * 51 * This software consists of voluntary contributions made by many 52 * individuals on behalf of the Apache Software Foundation. For more 53 * information on the Apache Software Foundation, please see 54 * <http://www.apache.org/>;. 55 */ 56 57 /**** 58 * SMTPCommand stores a set of constants for SMTP command codes. To interpret 59 * the meaning of the codes, familiarity with RFC 821 is assumed. 60 * The mnemonic constant names are transcriptions from the code descriptions 61 * of RFC 821. For those who think in terms of the actual SMTP commands, 62 * a set of constants such as <a href="#HELO"> HELO </a> are provided 63 * where the constant name is the same as the SMTP command. 64 * <p> 65 * <p> 66 * @author Daniel F. Savarese 67 ***/ 68 69 public final class SMTPCommand 70 { 71 72 73 public static final int HELO = 0; 74 public static final int MAIL = 1; 75 public static final int RCPT = 2; 76 public static final int DATA = 3; 77 public static final int SEND = 4; 78 public static final int SOML = 5; 79 public static final int SAML = 6; 80 public static final int RSET = 7; 81 public static final int VRFY = 8; 82 public static final int EXPN = 9; 83 public static final int HELP = 10; 84 public static final int NOOP = 11; 85 public static final int TURN = 12; 86 public static final int QUIT = 13; 87 88 public static final int HELLO = HELO; 89 public static final int LOGIN = HELO; 90 public static final int MAIL_FROM = MAIL; 91 public static final int RECIPIENT = RCPT; 92 public static final int SEND_MESSAGE_DATA = DATA; 93 public static final int SEND_FROM = SEND; 94 public static final int SEND_OR_MAIL_FROM = SOML; 95 public static final int SEND_AND_MAIL_FROM = SAML; 96 public static final int RESET = RSET; 97 public static final int VERIFY = VRFY; 98 public static final int EXPAND = EXPN; 99 // public static final int HELP = HELP; 100 // public static final int NOOP = NOOP; 101 // public static final int TURN = TURN; 102 // public static final int QUIT = QUIT; 103 public static final int LOGOUT = QUIT; 104 105 // Cannot be instantiated 106 private SMTPCommand() 107 {} 108 109 static final String[] _commands = { 110 "HELO", "MAIL FROM:", "RCPT TO:", "DATA", "SEND FROM:", "SOML FROM:", 111 "SAML FROM:", "RSET", "VRFY", "EXPN", "HELP", "NOOP", "TURN", "QUIT" 112 }; 113 114 115 /**** 116 * Retrieve the SMTP protocol command string corresponding to a specified 117 * command code. 118 * <p> 119 * @param The command code. 120 * @return The SMTP protcol command string corresponding to a specified 121 * command code. 122 ***/ 123 public static final String getCommand(int command) 124 { 125 return _commands[command]; 126 } 127 128 }

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