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1 | <?php |
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2 | |||
3 | //------------------------------------------------------------------------------ |
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4 | // |
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5 | // eTraxis - Records tracking web-based system |
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6 | // Copyright (C) 2009 Artem Rodygin |
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7 | // |
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8 | // This program is free software: you can redistribute it and/or modify |
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9 | // it under the terms of the GNU General Public License as published by |
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10 | // the Free Software Foundation, either version 3 of the License, or |
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11 | // (at your option) any later version. |
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12 | // |
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13 | // This program is distributed in the hope that it will be useful, |
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14 | // but WITHOUT ANY WARRANTY; without even the implied warranty of |
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15 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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16 | // GNU General Public License for more details. |
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17 | // |
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18 | // You should have received a copy of the GNU General Public License |
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19 | // along with this program. If not, see <http://www.gnu.org/licenses/>. |
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20 | // |
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21 | //------------------------------------------------------------------------------ |
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22 | |||
23 | /** |
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24 | * SMTP functions |
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25 | * |
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26 | * This module implements simple SMTP client. |
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27 | * |
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28 | * @package Engine |
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29 | */ |
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30 | |||
31 | /**#@+ |
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32 | * Dependency. |
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33 | */ |
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34 | require_once('../engine/debug.php'); |
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35 | /**#@-*/ |
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36 | |||
37 | //------------------------------------------------------------------------------ |
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38 | // Definitions. |
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39 | //------------------------------------------------------------------------------ |
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40 | |||
41 | /**#@+ |
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42 | * Supported SMTP clients. |
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43 | */ |
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44 | define('SMTP_CLIENT_PHP', 1); // PHP MTA |
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45 | define('SMTP_CLIENT_BUILDIN', 2); // build-in client |
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46 | /**#@-*/ |
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47 | |||
48 | //------------------------------------------------------------------------------ |
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49 | // Functions. |
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50 | //------------------------------------------------------------------------------ |
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51 | |||
52 | /** |
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53 | * Reads all response lines from opened SMTP session and returns SMTP response code. |
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54 | * |
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55 | * @param string $link Socket of active SMTP session. |
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56 | * @return int TRUE if code of SMTP server response means SUCCESS (2xx/3xx), FALSE otherwise. |
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57 | */ |
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58 | function smtp_read_response ($link) |
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59 | { |
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60 | debug_write_log(DEBUG_TRACE, '[smtp_read_response]'); |
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61 | |||
62 | stream_set_timeout($link, SMTP_SERVER_TIMEOUT); |
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63 | |||
64 | while (($response = fgets($link)) !== FALSE) |
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65 | { |
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66 | debug_write_log(DEBUG_DUMP, '[smtp_read_response] ' . trim($response)); |
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67 | |||
68 | if (substr($response, 3, 1) === ' ') |
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69 | { |
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70 | $code = intval(substr($response, 0, 3)); |
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71 | |||
72 | return $code >= 200 && $code < 400; |
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73 | } |
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74 | } |
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75 | |||
76 | return FALSE; |
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77 | } |
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78 | |||
79 | /** |
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80 | * Sends specified email via SMTP. |
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81 | * |
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82 | * @param string $to Email addresses of recipients (comma-separated). |
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83 | * @param string $subject Subject of the notification. |
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84 | * @param string $message Body of the notification. |
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85 | * @param string $headers Email headers. |
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86 | * @return bool TRUE if the mail was successfully accepted for delivery, FALSE otherwise. |
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87 | */ |
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88 | function smtp_send_mail ($to, $subject, $message, $headers) |
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89 | { |
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90 | debug_write_log(DEBUG_TRACE, '[smtp_send_mail]'); |
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91 | |||
92 | $link = fsockopen(SMTP_SERVER_NAME, SMTP_SERVER_PORT); |
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93 | |||
94 | if ($link === FALSE) |
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95 | { |
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96 | debug_write_log(DEBUG_WARNING, '[smtp_send_mail] Connection to SMTP server cannot be established.'); |
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97 | return FALSE; |
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98 | } |
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99 | |||
100 | View Code Duplication | if (!smtp_read_response($link)) |
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0 ignored issues
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101 | { |
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102 | debug_write_log(DEBUG_WARNING, '[smtp_send_mail] SMTP server replied a failure.'); |
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103 | fclose($link); |
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104 | return FALSE; |
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105 | } |
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106 | |||
107 | $requests = array('EHLO ' . php_uname('n')); |
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108 | |||
109 | if (SMTP_USE_TLS) |
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110 | { |
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111 | array_push($requests, 'STARTTLS'); |
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112 | } |
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113 | |||
114 | if (strlen(SMTP_USERNAME) != 0) |
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115 | { |
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116 | array_push($requests, 'AUTH LOGIN'); |
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117 | array_push($requests, base64_encode(SMTP_USERNAME)); |
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118 | array_push($requests, base64_encode(SMTP_PASSWORD)); |
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119 | } |
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120 | |||
121 | array_push($requests, 'MAIL FROM:<' . SMTP_MAILFROM . '>'); |
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122 | |||
123 | $recipients = explode(', ', $to); |
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124 | |||
125 | foreach ($recipients as $recipient) |
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126 | { |
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127 | array_push($requests, 'RCPT TO:<' . $recipient . '>'); |
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128 | } |
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129 | |||
130 | foreach ($requests as $request) |
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131 | { |
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132 | debug_write_log(DEBUG_DUMP, '[smtp_send_mail] ' . $request); |
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133 | fwrite($link, $request . "\n"); |
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134 | |||
135 | View Code Duplication | if (!smtp_read_response($link)) |
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0 ignored issues
–
show
This code seems to be duplicated across your project.
Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository.
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136 | { |
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137 | debug_write_log(DEBUG_WARNING, '[smtp_send_mail] SMTP server replied a failure.'); |
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138 | fclose($link); |
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139 | return FALSE; |
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140 | } |
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141 | |||
142 | if ($request == 'STARTTLS') |
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143 | { |
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144 | if (stream_socket_enable_crypto($link, TRUE, STREAM_CRYPTO_METHOD_TLS_CLIENT)) |
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145 | { |
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146 | debug_write_log(DEBUG_NOTICE, '[smtp_send_mail] TLS encryption successfully initiated.'); |
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147 | } |
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148 | else |
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149 | { |
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150 | debug_write_log(DEBUG_WARNING, '[smtp_send_mail] TLS encryption failed.'); |
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151 | fclose($link); |
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152 | return FALSE; |
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153 | } |
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154 | } |
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155 | } |
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156 | |||
157 | debug_write_log(DEBUG_DUMP, '[smtp_send_mail] DATA'); |
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158 | fwrite($link, "DATA\n"); |
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159 | |||
160 | View Code Duplication | if (!smtp_read_response($link)) |
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0 ignored issues
–
show
This code seems to be duplicated across your project.
Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository.
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161 | { |
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162 | debug_write_log(DEBUG_WARNING, '[smtp_send_mail] SMTP server replied a failure.'); |
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163 | fclose($link); |
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164 | return FALSE; |
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165 | } |
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166 | |||
167 | debug_write_log(DEBUG_DUMP, '[smtp_send_mail] ' . $headers); |
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168 | debug_write_log(DEBUG_DUMP, '[smtp_send_mail] Subject: ' . $subject); |
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169 | debug_write_log(DEBUG_DUMP, '[smtp_send_mail] ' . $message); |
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170 | debug_write_log(DEBUG_DUMP, '[smtp_send_mail] .'); |
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171 | |||
172 | fwrite($link, "{$headers}\r\n"); |
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173 | fwrite($link, "Subject: {$subject}\r\n\r\n"); |
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174 | fwrite($link, "{$message}\r\n"); |
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175 | fwrite($link, ".\r\n"); |
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176 | |||
177 | View Code Duplication | if (!smtp_read_response($link)) |
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0 ignored issues
–
show
This code seems to be duplicated across your project.
Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository.
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178 | { |
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179 | debug_write_log(DEBUG_WARNING, '[smtp_send_mail] SMTP server replied a failure.'); |
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180 | fclose($link); |
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181 | return FALSE; |
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182 | } |
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183 | |||
184 | debug_write_log(DEBUG_DUMP, '[smtp_send_mail] QUIT'); |
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185 | fwrite($link, "QUIT\n"); |
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186 | |||
187 | fclose($link); |
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188 | return TRUE; |
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189 | } |
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190 | |||
191 | ?> |
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192 |
Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.
You can also find more detailed suggestions in the “Code” section of your repository.