4 +-----------------------------------------------------------------------+
5 | program/include/rcube_smtp.php |
7 | This file is part of the Roundcube Webmail client |
8 | Copyright (C) 2005-2010, The Roundcube Dev Team |
9 | Licensed under the GNU GPL |
12 | Provide SMTP functionality using socket connections |
14 +-----------------------------------------------------------------------+
15 | Author: Thomas Bruederli <roundcube@gmail.com> |
16 +-----------------------------------------------------------------------+
18 $Id: rcube_smtp.php 5499 2011-11-28 09:03:27Z alec $
22 // define headers delimiter
23 define('SMTP_MIME_CRLF', "\r\n");
26 * Class to provide SMTP functionality using PEAR Net_SMTP
29 * @author Thomas Bruederli <roundcube@gmail.com>
30 * @author Aleksander Machniak <alec@alec.pl>
41 * SMTP Connection and authentication
43 * @param string Server host
44 * @param string Server port
45 * @param string User name
46 * @param string Password
48 * @return bool Returns true on success, or false on error
50 public function connect($host=null, $port=null, $user=null, $pass=null)
52 $RCMAIL = rcmail::get_instance();
54 // disconnect/destroy $this->conn
57 // reset error/response var
58 $this->error = $this->response = null;
60 // let plugins alter smtp connection config
61 $CONFIG = $RCMAIL->plugins->exec_hook('smtp_connect', array(
62 'smtp_server' => $host ? $host : $RCMAIL->config->get('smtp_server'),
63 'smtp_port' => $port ? $port : $RCMAIL->config->get('smtp_port', 25),
64 'smtp_user' => $user ? $user : $RCMAIL->config->get('smtp_user'),
65 'smtp_pass' => $pass ? $pass : $RCMAIL->config->get('smtp_pass'),
66 'smtp_auth_cid' => $RCMAIL->config->get('smtp_auth_cid'),
67 'smtp_auth_pw' => $RCMAIL->config->get('smtp_auth_pw'),
68 'smtp_auth_type' => $RCMAIL->config->get('smtp_auth_type'),
69 'smtp_helo_host' => $RCMAIL->config->get('smtp_helo_host'),
70 'smtp_timeout' => $RCMAIL->config->get('smtp_timeout'),
73 $smtp_host = rcube_parse_host($CONFIG['smtp_server']);
74 // when called from Installer it's possible to have empty $smtp_host here
75 if (!$smtp_host) $smtp_host = 'localhost';
76 $smtp_port = is_numeric($CONFIG['smtp_port']) ? $CONFIG['smtp_port'] : 25;
77 $smtp_host_url = parse_url($smtp_host);
80 if (isset($smtp_host_url['host']) && isset($smtp_host_url['port']))
82 $smtp_host = $smtp_host_url['host'];
83 $smtp_port = $smtp_host_url['port'];
87 if (isset($smtp_host_url['host']) && isset($smtp_host_url['scheme']))
88 $smtp_host = sprintf('%s://%s', $smtp_host_url['scheme'], $smtp_host_url['host']);
90 // remove TLS prefix and set flag for use in Net_SMTP::auth()
91 if (preg_match('#^tls://#i', $smtp_host)) {
92 $smtp_host = preg_replace('#^tls://#i', '', $smtp_host);
96 if (!empty($CONFIG['smtp_helo_host']))
97 $helo_host = $CONFIG['smtp_helo_host'];
98 else if (!empty($_SERVER['SERVER_NAME']))
99 $helo_host = preg_replace('/:\d+$/', '', $_SERVER['SERVER_NAME']);
101 $helo_host = 'localhost';
104 $smtp_host = rcube_idn_to_ascii($smtp_host);
106 $this->conn = new Net_SMTP($smtp_host, $smtp_port, $helo_host);
108 if ($RCMAIL->config->get('smtp_debug'))
109 $this->conn->setDebug(true, array($this, 'debug_handler'));
111 // try to connect to server and exit on failure
112 $result = $this->conn->connect($smtp_timeout);
114 if (PEAR::isError($result)) {
115 $this->response[] = "Connection failed: ".$result->getMessage();
116 $this->error = array('label' => 'smtpconnerror', 'vars' => array('code' => $this->conn->_code));
121 // workaround for timeout bug in Net_SMTP 1.5.[0-1] (#1487843)
122 if (method_exists($this->conn, 'setTimeout')
123 && ($timeout = ini_get('default_socket_timeout'))
125 $this->conn->setTimeout($timeout);
128 $smtp_user = str_replace('%u', $_SESSION['username'], $CONFIG['smtp_user']);
129 $smtp_pass = str_replace('%p', $RCMAIL->decrypt($_SESSION['password']), $CONFIG['smtp_pass']);
130 $smtp_auth_type = empty($CONFIG['smtp_auth_type']) ? NULL : $CONFIG['smtp_auth_type'];
132 if (!empty($CONFIG['smtp_auth_cid'])) {
133 $smtp_authz = $smtp_user;
134 $smtp_user = $CONFIG['smtp_auth_cid'];
135 $smtp_pass = $CONFIG['smtp_auth_pw'];
138 // attempt to authenticate to the SMTP server
139 if ($smtp_user && $smtp_pass)
142 if (strpos($smtp_user, '@')) {
143 $smtp_user = rcube_idn_to_ascii($smtp_user);
146 $result = $this->conn->auth($smtp_user, $smtp_pass, $smtp_auth_type, $use_tls, $smtp_authz);
148 if (PEAR::isError($result))
150 $this->error = array('label' => 'smtpautherror', 'vars' => array('code' => $this->conn->_code));
151 $this->response[] .= 'Authentication failure: ' . $result->getMessage() . ' (Code: ' . $result->getCode() . ')';
163 * Function for sending mail
165 * @param string Sender e-Mail address
167 * @param mixed Either a comma-seperated list of recipients
168 * (RFC822 compliant), or an array of recipients,
169 * each RFC822 valid. This may contain recipients not
170 * specified in the headers, for Bcc:, resending
172 * @param mixed The message headers to send with the mail
173 * Either as an associative array or a finally
175 * @param mixed The full text of the message body, including any Mime parts
177 * @param array Delivery options (e.g. DSN request)
179 * @return bool Returns true on success, or false on error
181 public function send_mail($from, $recipients, &$headers, &$body, $opts=null)
183 if (!is_object($this->conn))
186 // prepare message headers as string
187 if (is_array($headers))
189 if (!($headerElements = $this->_prepare_headers($headers))) {
194 list($from, $text_headers) = $headerElements;
196 else if (is_string($headers))
197 $text_headers = $headers;
201 $this->response[] = "Invalid message headers";
205 // exit if no from address is given
209 $this->response[] = "No From address has been provided";
213 // RFC3461: Delivery Status Notification
215 $exts = $this->conn->getServiceExtensions();
217 if (isset($exts['DSN'])) {
218 $from_params = 'RET=HDRS';
219 $recipient_params = 'NOTIFY=SUCCESS,FAILURE';
223 // RFC2298.3: remove envelope sender address
224 if (preg_match('/Content-Type: multipart\/report/', $text_headers)
225 && preg_match('/report-type=disposition-notification/', $text_headers)
231 if (PEAR::isError($this->conn->mailFrom($from, $from_params)))
233 $err = $this->conn->getResponse();
234 $this->error = array('label' => 'smtpfromerror', 'vars' => array(
235 'from' => $from, 'code' => $this->conn->_code, 'msg' => $err[1]));
236 $this->response[] = "Failed to set sender '$from'";
241 // prepare list of recipients
242 $recipients = $this->_parse_rfc822($recipients);
243 if (PEAR::isError($recipients))
245 $this->error = array('label' => 'smtprecipientserror');
250 // set mail recipients
251 foreach ($recipients as $recipient)
253 if (PEAR::isError($this->conn->rcptTo($recipient, $recipient_params))) {
254 $err = $this->conn->getResponse();
255 $this->error = array('label' => 'smtptoerror', 'vars' => array(
256 'to' => $recipient, 'code' => $this->conn->_code, 'msg' => $err[1]));
257 $this->response[] = "Failed to add recipient '$recipient'";
263 if (is_resource($body))
267 $text_headers = preg_replace('/[\r\n]+$/', '', $text_headers);
269 // Concatenate headers and body so it can be passed by reference to SMTP_CONN->data
270 // so preg_replace in SMTP_CONN->quotedata will store a reference instead of a copy.
271 // We are still forced to make another copy here for a couple ticks so we don't really
272 // get to save a copy in the method call.
273 $data = $text_headers . "\r\n" . $body;
275 // unset old vars to save data and so we can pass into SMTP_CONN->data by reference.
276 unset($text_headers, $body);
279 // Send the message's headers and the body as SMTP data.
280 if (PEAR::isError($result = $this->conn->data($data, $text_headers)))
282 $err = $this->conn->getResponse();
283 if (!in_array($err[0], array(354, 250, 221)))
284 $msg = sprintf('[%d] %s', $err[0], $err[1]);
286 $msg = $result->getMessage();
288 $this->error = array('label' => 'smtperror', 'vars' => array('msg' => $msg));
289 $this->response[] = "Failed to send data";
294 $this->response[] = join(': ', $this->conn->getResponse());
300 * Reset the global SMTP connection
303 public function reset()
305 if (is_object($this->conn))
311 * Disconnect the global SMTP connection
314 public function disconnect()
316 if (is_object($this->conn)) {
317 $this->conn->disconnect();
324 * This is our own debug handler for the SMTP connection
327 public function debug_handler(&$smtp, $message)
329 write_log('smtp', preg_replace('/\r\n$/', '', $message));
337 public function get_error()
344 * Get server response messages array
347 public function get_response()
349 return $this->response;
354 * Take an array of mail headers and return a string containing
355 * text usable in sending a message.
357 * @param array $headers The array of headers to prepare, in an associative
358 * array, where the array key is the header name (ie,
359 * 'Subject'), and the array value is the header
360 * value (ie, 'test'). The header produced from those
361 * values would be 'Subject: test'.
363 * @return mixed Returns false if it encounters a bad address,
364 * otherwise returns an array containing two
365 * elements: Any From: address found in the headers,
366 * and the plain text version of the headers.
369 private function _prepare_headers($headers)
374 foreach ($headers as $key => $value)
376 if (strcasecmp($key, 'From') === 0)
378 $addresses = $this->_parse_rfc822($value);
380 if (is_array($addresses))
381 $from = $addresses[0];
383 // Reject envelope From: addresses with spaces.
384 if (strpos($from, ' ') !== false)
387 $lines[] = $key . ': ' . $value;
389 else if (strcasecmp($key, 'Received') === 0)
392 if (is_array($value))
394 foreach ($value as $line)
395 $received[] = $key . ': ' . $line;
399 $received[] = $key . ': ' . $value;
402 // Put Received: headers at the top. Spam detectors often
403 // flag messages with Received: headers after the Subject:
405 $lines = array_merge($received, $lines);
409 // If $value is an array (i.e., a list of addresses), convert
410 // it to a comma-delimited string of its elements (addresses).
411 if (is_array($value))
412 $value = implode(', ', $value);
414 $lines[] = $key . ': ' . $value;
418 return array($from, join(SMTP_MIME_CRLF, $lines) . SMTP_MIME_CRLF);
422 * Take a set of recipients and parse them, returning an array of
423 * bare addresses (forward paths) that can be passed to sendmail
424 * or an smtp server with the rcpt to: command.
426 * @param mixed Either a comma-seperated list of recipients
427 * (RFC822 compliant), or an array of recipients,
430 * @return array An array of forward paths (bare addresses).
433 private function _parse_rfc822($recipients)
435 // if we're passed an array, assume addresses are valid and implode them before parsing.
436 if (is_array($recipients))
437 $recipients = implode(', ', $recipients);
439 $addresses = array();
440 $recipients = rcube_explode_quoted_string(',', $recipients);
443 while (list($k, $recipient) = each($recipients))
445 $a = rcube_explode_quoted_string(' ', $recipient);
446 while (list($k2, $word) = each($a))
448 if (strpos($word, "@") > 0 && $word[strlen($word)-1] != '"')
450 $word = preg_replace('/^<|>$/', '', trim($word));
451 if (in_array($word, $addresses)===false)
452 array_push($addresses, $word);