| commit | author | age | ||
| 520c36 | 1 | <?php |
| 968bdc | 2 | |
| T | 3 | /* |
| 4 | +-----------------------------------------------------------------------+ | |
| 5 | | program/include/rcube_smtp.inc | | |
| 6 | | | | |
| 7 | | This file is part of the RoundCube Webmail client | | |
| 8 | | Copyright (C) 2005, RoundCube Dev. - Switzerland | | |
| 9 | | Licensed under the GNU GPL | | |
| 10 | | | | |
| 11 | | PURPOSE: | | |
| 12 | | Provide SMTP functionality using socket connections | | |
| 13 | | | | |
| 14 | +-----------------------------------------------------------------------+ | |
| 15 | | Author: Thomas Bruederli <roundcube@gmail.com> | | |
| 16 | +-----------------------------------------------------------------------+ | |
| 17 | ||
| 18 | $Id$ | |
| 19 | ||
| 20 | */ | |
| 21 | ||
| 22 | ||
| 23 | // include required PEAR classes | |
| 24 | require_once('Net/SMTP.php'); | |
| 25 | ||
| 26 | ||
| 27 | // define headers delimiter | |
| 28 | define('SMTP_MIME_CRLF', "\r\n"); | |
| 29 | ||
| 30 | $SMTP_CONN = null; | |
| 31 | ||
| 32 | /** | |
| 33 | * Function for sending mail using SMTP. | |
| 34 | * | |
| 35 | * @param string Sender e-Mail address | |
| 36 | * | |
| 37 | * @param mixed Either a comma-seperated list of recipients | |
| 38 | * (RFC822 compliant), or an array of recipients, | |
| 39 | * each RFC822 valid. This may contain recipients not | |
| 40 | * specified in the headers, for Bcc:, resending | |
| 41 | * messages, etc. | |
| 42 | * | |
| 43 | * @param mixed The message headers to send with the mail | |
| 44 | * Either as an associative array or a finally | |
| 45 | * formatted string | |
| 46 | * | |
| 47 | * @param string The full text of the message body, including any Mime parts, etc. | |
| 48 | * | |
| 49 | * @return bool Returns TRUE on success, or FALSE on error | |
| 50 | * @access public | |
| 51 | */ | |
| e0ed97 | 52 | function smtp_mail($from, $recipients, $headers, &$body) |
| 968bdc | 53 | { |
| T | 54 | global $SMTP_CONN, $CONFIG, $SMTP_ERROR; |
| 55 | $smtp_timeout = null; | |
| 56 | $smtp_port = is_numeric($CONFIG['smtp_port']) ? $CONFIG['smtp_port'] : 25; | |
| 57 | ||
| 58 | // create Net_SMTP object and connect to server | |
| 59 | if (!is_object($smtp_conn)) | |
| 60 | { | |
| 61 | $SMTP_CONN = new Net_SMTP($CONFIG['smtp_server'], $smtp_port, 'localhost'); | |
| 62 | ||
| 63 | // set debugging | |
| 64 | if ($CONFIG['debug_level'] & 8) | |
| 65 | $SMTP_CONN->setDebug(TRUE); | |
| 66 | ||
| 67 | ||
| 68 | // try to connect to server and exit on failure | |
| 69 | if (PEAR::isError($SMTP_CONN->connect($smtp_timeout))) | |
| 70 | { | |
| 71 | $SMTP_CONN = null; | |
| 72 | $SMTP_ERROR .= "Connection failed\n"; | |
| 73 | return FALSE; | |
| 74 | } | |
| d206c1 | 75 | |
| 968bdc | 76 | // attempt to authenticate to the SMTP server |
| T | 77 | if ($CONFIG['smtp_user'] && $CONFIG['smtp_pass']) |
| 78 | { | |
| d206c1 | 79 | if ($CONFIG['smtp_user'] == '%u') |
| S | 80 | $smtp_user = $_SESSION['username']; |
| 81 | else | |
| 82 | $smtp_user = $CONFIG['smtp_user']; | |
| 83 | ||
| 84 | if ($CONFIG['smtp_pass'] == '%p') | |
| 85 | $smtp_pass = decrypt_passwd($_SESSION['password']); | |
| 86 | else | |
| 87 | $smtp_pass = $CONFIG['smtp_pass']; | |
| 88 | ||
| 4301b0 | 89 | $smtp_auth_type = empty($CONFIG['smtp_auth_type']) ? NULL : $CONFIG['smtp_auth_type']; |
| d206c1 | 90 | |
| S | 91 | if (PEAR::isError($SMTP_CONN->auth($smtp_user, $smtp_pass, $smtp_auth_type))) |
| 968bdc | 92 | { |
| T | 93 | smtp_reset(); |
| 94 | $SMTP_ERROR .= "authentication failure\n"; | |
| 95 | return FALSE; | |
| 96 | } | |
| 97 | } | |
| 98 | } | |
| 99 | ||
| 100 | ||
| 101 | // prepare message headers as string | |
| 102 | if (is_array($headers)) | |
| 103 | { | |
| 104 | $headerElements = smtp_prepare_headers($headers); | |
| 105 | if (!$headerElements) | |
| 106 | { | |
| 107 | smtp_reset(); | |
| 108 | return FALSE; | |
| 109 | } | |
| 110 | ||
| 111 | list($from, $text_headers) = $headerElements; | |
| 112 | } | |
| 113 | else if (is_string($headers)) | |
| 114 | $text_headers = $headers; | |
| 115 | else | |
| 116 | { | |
| 117 | smtp_reset(); | |
| 118 | $SMTP_ERROR .= "Invalid message headers\n"; | |
| 119 | return FALSE; | |
| 120 | } | |
| 121 | ||
| 122 | // exit if no from address is given | |
| 123 | if (!isset($from)) | |
| 124 | { | |
| 125 | smtp_reset(); | |
| 126 | $SMTP_ERROR .= "No From address has been provided\n"; | |
| 127 | return FALSE; | |
| 128 | } | |
| 129 | ||
| 130 | ||
| 131 | // set From: address | |
| 132 | if (PEAR::isError($SMTP_CONN->mailFrom($from))) | |
| 133 | { | |
| 134 | smtp_reset(); | |
| 135 | $SMTP_ERROR .= "Failed to set sender '$from'\n"; | |
| 136 | return FALSE; | |
| 137 | } | |
| 138 | ||
| 139 | ||
| 140 | // prepare list of recipients | |
| 141 | $recipients = smtp_parse_rfc822($recipients); | |
| 142 | if (PEAR::isError($recipients)) | |
| 143 | { | |
| 144 | smtp_reset(); | |
| 145 | return FALSE; | |
| 146 | } | |
| 147 | ||
| 148 | ||
| 149 | // set mail recipients | |
| 150 | foreach ($recipients as $recipient) | |
| 151 | { | |
| 152 | if (PEAR::isError($SMTP_CONN->rcptTo($recipient))) | |
| 153 | { | |
| 154 | smtp_reset(); | |
| 155 | $SMTP_ERROR .= "Failed to add recipient '$recipient'\n"; | |
| 156 | return FALSE; | |
| 157 | } | |
| 158 | } | |
| 159 | ||
| 160 | ||
| 161 | // Send the message's headers and the body as SMTP data. | |
| 162 | if (PEAR::isError($SMTP_CONN->data("$text_headers\r\n$body"))) | |
| 163 | { | |
| 164 | smtp_reset(); | |
| 165 | $SMTP_ERROR .= "Failed to send data\n"; | |
| 166 | return FALSE; | |
| 167 | } | |
| 168 | ||
| 169 | ||
| 170 | return TRUE; | |
| 171 | } | |
| 172 | ||
| 173 | ||
| 174 | ||
| 175 | /** | |
| 176 | * Reset the global SMTP connection | |
| 177 | * @access public | |
| 178 | */ | |
| 179 | function smtp_reset() | |
| 180 | { | |
| 181 | global $SMTP_CONN; | |
| 182 | ||
| 183 | if (is_object($SMTP_CONN)) | |
| 184 | { | |
| 185 | $SMTP_CONN->rset(); | |
| 186 | smtp_disconnect(); | |
| 187 | } | |
| 188 | } | |
| 189 | ||
| 190 | ||
| 191 | ||
| 192 | /** | |
| 193 | * Disconnect the global SMTP connection and destroy object | |
| 194 | * @access public | |
| 195 | */ | |
| 196 | function smtp_disconnect() | |
| 197 | { | |
| 198 | global $SMTP_CONN; | |
| 199 | ||
| 200 | if (is_object($SMTP_CONN)) | |
| 201 | { | |
| 202 | $SMTP_CONN->disconnect(); | |
| 203 | $SMTP_CONN = null; | |
| 204 | } | |
| 205 | } | |
| 206 | ||
| 207 | ||
| 208 | /** | |
| 209 | * Take an array of mail headers and return a string containing | |
| 210 | * text usable in sending a message. | |
| 211 | * | |
| 212 | * @param array $headers The array of headers to prepare, in an associative | |
| 213 | * array, where the array key is the header name (ie, | |
| 214 | * 'Subject'), and the array value is the header | |
| 215 | * value (ie, 'test'). The header produced from those | |
| 216 | * values would be 'Subject: test'. | |
| 217 | * | |
| 218 | * @return mixed Returns false if it encounters a bad address, | |
| 219 | * otherwise returns an array containing two | |
| 220 | * elements: Any From: address found in the headers, | |
| 221 | * and the plain text version of the headers. | |
| 222 | * @access private | |
| 223 | */ | |
| 224 | function smtp_prepare_headers($headers) | |
| 225 | { | |
| 226 | $lines = array(); | |
| 227 | $from = null; | |
| 228 | ||
| 229 | foreach ($headers as $key => $value) | |
| 230 | { | |
| 231 | if (strcasecmp($key, 'From') === 0) | |
| 232 | { | |
| 233 | $addresses = smtp_parse_rfc822($value); | |
| 234 | ||
| 235 | if (is_array($addresses)) | |
| 236 | $from = $addresses[0]; | |
| 237 | ||
| 238 | // Reject envelope From: addresses with spaces. | |
| 239 | if (strstr($from, ' ')) | |
| 240 | return FALSE; | |
| 241 | ||
| 242 | ||
| 243 | $lines[] = $key . ': ' . $value; | |
| 244 | } | |
| 245 | else if (strcasecmp($key, 'Received') === 0) | |
| 246 | { | |
| 247 | $received = array(); | |
| 248 | if (is_array($value)) | |
| 249 | { | |
| 250 | foreach ($value as $line) | |
| 251 | $received[] = $key . ': ' . $line; | |
| 252 | } | |
| 253 | else | |
| 254 | { | |
| 255 | $received[] = $key . ': ' . $value; | |
| 256 | } | |
| 257 | ||
| 258 | // Put Received: headers at the top. Spam detectors often | |
| 259 | // flag messages with Received: headers after the Subject: | |
| 260 | // as spam. | |
| 261 | $lines = array_merge($received, $lines); | |
| 262 | } | |
| 263 | ||
| 264 | else | |
| 265 | { | |
| 266 | // If $value is an array (i.e., a list of addresses), convert | |
| 267 | // it to a comma-delimited string of its elements (addresses). | |
| 268 | if (is_array($value)) | |
| 269 | $value = implode(', ', $value); | |
| 270 | ||
| 271 | $lines[] = $key . ': ' . $value; | |
| 272 | } | |
| 273 | } | |
| 274 | ||
| 275 | return array($from, join(SMTP_MIME_CRLF, $lines) . SMTP_MIME_CRLF); | |
| 276 | } | |
| 277 | ||
| 278 | ||
| 279 | ||
| 280 | /** | |
| 281 | * Take a set of recipients and parse them, returning an array of | |
| 282 | * bare addresses (forward paths) that can be passed to sendmail | |
| 283 | * or an smtp server with the rcpt to: command. | |
| 284 | * | |
| 285 | * @param mixed Either a comma-seperated list of recipients | |
| 286 | * (RFC822 compliant), or an array of recipients, | |
| 287 | * each RFC822 valid. | |
| 288 | * | |
| 289 | * @return array An array of forward paths (bare addresses). | |
| 290 | * @access private | |
| 291 | */ | |
| 292 | function smtp_parse_rfc822($recipients) | |
| 293 | { | |
| 294 | // if we're passed an array, assume addresses are valid and implode them before parsing. | |
| 295 | if (is_array($recipients)) | |
| 296 | $recipients = implode(', ', $recipients); | |
| 297 | ||
| 298 | $addresses = array(); | |
| 299 | $recipients = smtp_explode_quoted_str(",", $recipients); | |
| 300 | ||
| 301 | reset($recipients); | |
| 302 | while (list($k, $recipient) = each($recipients)) | |
| 303 | { | |
| 304 | $a = explode(" ", $recipient); | |
| 305 | while (list($k2, $word) = each($a)) | |
| 306 | { | |
| 307 | if ((strpos($word, "@") > 0) && (strpos($word, "\"")===false)) | |
| 308 | { | |
| 309 | $word = ereg_replace('^<|>$', '', trim($word)); | |
| 310 | if (in_array($word, $addresses)===false) | |
| 311 | array_push($addresses, $word); | |
| 312 | } | |
| 313 | } | |
| 314 | } | |
| 315 | return $addresses; | |
| 316 | } | |
| 317 | ||
| 318 | ||
| 319 | function smtp_explode_quoted_str($delimiter, $string) | |
| 320 | { | |
| 321 | $quotes=explode("\"", $string); | |
| 322 | while ( list($key, $val) = each($quotes)) | |
| 323 | if (($key % 2) == 1) | |
| 324 | $quotes[$key] = str_replace($delimiter, "_!@!_", $quotes[$key]); | |
| 325 | $string=implode("\"", $quotes); | |
| 326 | ||
| 327 | $result=explode($delimiter, $string); | |
| 328 | while (list($key, $val) = each($result)) | |
| 329 | $result[$key] = str_replace("_!@!_", $delimiter, $result[$key]); | |
| 330 | ||
| 331 | return $result; | |
| 332 | } | |
| 333 | ||
| 334 | ||
| 335 | ?> | |
