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org.apache.commons.net.smtp.SMTPReply |
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1 | /* |
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2 | * Copyright 2001-2005 The Apache Software Foundation |
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3 | * |
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4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
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5 | * you may not use this file except in compliance with the License. |
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6 | * You may obtain a copy of the License at |
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7 | * |
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8 | * http://www.apache.org/licenses/LICENSE-2.0 |
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9 | * |
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10 | * Unless required by applicable law or agreed to in writing, software |
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11 | * distributed under the License is distributed on an "AS IS" BASIS, |
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12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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13 | * See the License for the specific language governing permissions and |
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14 | * limitations under the License. |
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15 | */ |
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16 | package org.apache.commons.net.smtp; |
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17 | ||
18 | /*** |
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19 | * SMTPReply stores a set of constants for SMTP reply codes. To interpret |
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20 | * the meaning of the codes, familiarity with RFC 821 is assumed. |
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21 | * The mnemonic constant names are transcriptions from the code descriptions |
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22 | * of RFC 821. For those who think in terms of the actual reply code values, |
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23 | * a set of CODE_NUM constants are provided where NUM is the numerical value |
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24 | * of the code. |
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25 | * <p> |
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26 | * <p> |
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27 | * @author Daniel F. Savarese |
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28 | ***/ |
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29 | ||
30 | public final class SMTPReply |
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31 | { |
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32 | ||
33 | public static final int CODE_211 = 211; |
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34 | public static final int CODE_214 = 214; |
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35 | public static final int CODE_215 = 215; |
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36 | public static final int CODE_220 = 220; |
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37 | public static final int CODE_221 = 221; |
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38 | public static final int CODE_250 = 250; |
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39 | public static final int CODE_251 = 251; |
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40 | public static final int CODE_354 = 354; |
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41 | public static final int CODE_421 = 421; |
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42 | public static final int CODE_450 = 450; |
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43 | public static final int CODE_451 = 451; |
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44 | public static final int CODE_452 = 452; |
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45 | public static final int CODE_500 = 500; |
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46 | public static final int CODE_501 = 501; |
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47 | public static final int CODE_502 = 502; |
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48 | public static final int CODE_503 = 503; |
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49 | public static final int CODE_504 = 504; |
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50 | public static final int CODE_550 = 550; |
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51 | public static final int CODE_551 = 551; |
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52 | public static final int CODE_552 = 552; |
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53 | public static final int CODE_553 = 553; |
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54 | public static final int CODE_554 = 554; |
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55 | ||
56 | public static final int SYSTEM_STATUS = CODE_211; |
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57 | public static final int HELP_MESSAGE = CODE_214; |
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58 | public static final int SERVICE_READY = CODE_220; |
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59 | public static final int SERVICE_CLOSING_TRANSMISSION_CHANNEL = CODE_221; |
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60 | public static final int ACTION_OK = CODE_250; |
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61 | public static final int USER_NOT_LOCAL_WILL_FORWARD = CODE_251; |
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62 | public static final int START_MAIL_INPUT = CODE_354; |
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63 | public static final int SERVICE_NOT_AVAILABLE = CODE_421; |
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64 | public static final int ACTION_NOT_TAKEN = CODE_450; |
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65 | public static final int ACTION_ABORTED = CODE_451; |
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66 | public static final int INSUFFICIENT_STORAGE = CODE_452; |
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67 | public static final int UNRECOGNIZED_COMMAND = CODE_500; |
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68 | public static final int SYNTAX_ERROR_IN_ARGUMENTS = CODE_501; |
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69 | public static final int COMMAND_NOT_IMPLEMENTED = CODE_502; |
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70 | public static final int BAD_COMMAND_SEQUENCE = CODE_503; |
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71 | public static final int COMMAND_NOT_IMPLEMENTED_FOR_PARAMETER = CODE_504; |
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72 | public static final int MAILBOX_UNAVAILABLE = CODE_550; |
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73 | public static final int USER_NOT_LOCAL = CODE_551; |
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74 | public static final int STORAGE_ALLOCATION_EXCEEDED = CODE_552; |
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75 | public static final int MAILBOX_NAME_NOT_ALLOWED = CODE_553; |
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76 | public static final int TRANSACTION_FAILED = CODE_554; |
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77 | ||
78 | // Cannot be instantiated |
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79 | private SMTPReply() |
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80 | 0 | {} |
81 | ||
82 | /*** |
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83 | * Determine if a reply code is a positive preliminary response. All |
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84 | * codes beginning with a 1 are positive preliminary responses. |
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85 | * Postitive preliminary responses are used to indicate tentative success. |
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86 | * No further commands can be issued to the SMTP server after a positive |
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87 | * preliminary response until a follow up response is received from the |
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88 | * server. |
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89 | * <p> |
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90 | * <b> Note: </b> <em> No SMTP commands defined in RFC 822 provide this |
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91 | * type of reply. </em> |
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92 | * <p> |
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93 | * @param reply The reply code to test. |
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94 | * @return True if a reply code is a postive preliminary response, false |
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95 | * if not. |
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96 | ***/ |
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97 | public static boolean isPositivePreliminary(int reply) |
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98 | { |
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99 | 0 | return (reply >= 100 && reply < 200); |
100 | } |
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101 | ||
102 | /*** |
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103 | * Determine if a reply code is a positive completion response. All |
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104 | * codes beginning with a 2 are positive completion responses. |
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105 | * The SMTP server will send a positive completion response on the final |
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106 | * successful completion of a command. |
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107 | * <p> |
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108 | * @param reply The reply code to test. |
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109 | * @return True if a reply code is a postive completion response, false |
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110 | * if not. |
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111 | ***/ |
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112 | public static boolean isPositiveCompletion(int reply) |
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113 | { |
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114 | 0 | return (reply >= 200 && reply < 300); |
115 | } |
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116 | ||
117 | /*** |
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118 | * Determine if a reply code is a positive intermediate response. All |
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119 | * codes beginning with a 3 are positive intermediate responses. |
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120 | * The SMTP server will send a positive intermediate response on the |
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121 | * successful completion of one part of a multi-part sequence of |
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122 | * commands. For example, after a successful DATA command, a positive |
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123 | * intermediate response will be sent to indicate that the server is |
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124 | * ready to receive the message data. |
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125 | * <p> |
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126 | * @param reply The reply code to test. |
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127 | * @return True if a reply code is a postive intermediate response, false |
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128 | * if not. |
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129 | ***/ |
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130 | public static boolean isPositiveIntermediate(int reply) |
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131 | { |
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132 | 0 | return (reply >= 300 && reply < 400); |
133 | } |
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134 | ||
135 | /*** |
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136 | * Determine if a reply code is a negative transient response. All |
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137 | * codes beginning with a 4 are negative transient responses. |
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138 | * The SMTP server will send a negative transient response on the |
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139 | * failure of a command that can be reattempted with success. |
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140 | * <p> |
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141 | * @param reply The reply code to test. |
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142 | * @return True if a reply code is a negative transient response, false |
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143 | * if not. |
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144 | ***/ |
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145 | public static boolean isNegativeTransient(int reply) |
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146 | { |
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147 | 0 | return (reply >= 400 && reply < 500); |
148 | } |
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149 | ||
150 | /*** |
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151 | * Determine if a reply code is a negative permanent response. All |
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152 | * codes beginning with a 5 are negative permanent responses. |
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153 | * The SMTP server will send a negative permanent response on the |
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154 | * failure of a command that cannot be reattempted with success. |
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155 | * <p> |
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156 | * @param reply The reply code to test. |
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157 | * @return True if a reply code is a negative permanent response, false |
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158 | * if not. |
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159 | ***/ |
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160 | public static boolean isNegativePermanent(int reply) |
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161 | { |
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162 | 0 | return (reply >= 500 && reply < 600); |
163 | } |
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164 | ||
165 | } |
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