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| | |
| | | <?php |
| | | |
| | | /* |
| | | +-----------------------------------------------------------------------+ |
| | | | program/include/rcube_smtp.php | |
| | | | | |
| | | | This file is part of the RoundCube Webmail client | |
| | | | Copyright (C) 2005-2007, RoundCube Dev. - Switzerland | |
| | | | Licensed under the GNU GPL | |
| | | | | |
| | | | PURPOSE: | |
| | | | Provide SMTP functionality using socket connections | |
| | | | | |
| | | +-----------------------------------------------------------------------+ |
| | | | Author: Thomas Bruederli <roundcube@gmail.com> | |
| | | +-----------------------------------------------------------------------+ |
| | | |
| | | $Id: rcube_smtp.inc 2754 2009-07-14 16:34:34Z alec $ |
| | | |
| | | */ |
| | | |
| | | // define headers delimiter |
| | | define('SMTP_MIME_CRLF', "\r\n"); |
| | | |
| | | class rcube_smtp { |
| | | |
| | | private $conn = null; |
| | | private $response; |
| | | private $error; |
| | | |
| | | |
| | | /** |
| | | * Object constructor |
| | | * |
| | | * @param |
| | | */ |
| | | function __construct() |
| | | { |
| | | } |
| | | |
| | | |
| | | /** |
| | | * SMTP Connection and authentication |
| | | * |
| | | * @return bool Returns true on success, or false on error |
| | | */ |
| | | public function connect() |
| | | { |
| | | $RCMAIL = rcmail::get_instance(); |
| | | |
| | | // disconnect/destroy $this->conn |
| | | $this->disconnect(); |
| | | |
| | | // reset error/response var |
| | | $this->error = $this->response = null; |
| | | |
| | | // let plugins alter smtp connection config |
| | | $CONFIG = $RCMAIL->plugins->exec_hook('smtp_connect', array( |
| | | 'smtp_server' => $RCMAIL->config->get('smtp_server'), |
| | | 'smtp_port' => $RCMAIL->config->get('smtp_port', 25), |
| | | 'smtp_user' => $RCMAIL->config->get('smtp_user'), |
| | | 'smtp_pass' => $RCMAIL->config->get('smtp_pass'), |
| | | 'smtp_auth_type' => $RCMAIL->config->get('smtp_auth_type'), |
| | | 'smtp_helo_host' => $RCMAIL->config->get('smtp_helo_host'), |
| | | 'smtp_timeout' => $RCMAIL->config->get('smtp_timeout'), |
| | | )); |
| | | |
| | | $smtp_host = str_replace('%h', $_SESSION['imap_host'], $CONFIG['smtp_server']); |
| | | // when called from Installer it's possible to have empty $smtp_host here |
| | | if (!$smtp_host) $smtp_host = 'localhost'; |
| | | $smtp_port = is_numeric($CONFIG['smtp_port']) ? $CONFIG['smtp_port'] : 25; |
| | | $smtp_host_url = parse_url($smtp_host); |
| | | |
| | | // overwrite port |
| | | if (isset($smtp_host_url['host']) && isset($smtp_host_url['port'])) |
| | | { |
| | | $smtp_host = $smtp_host_url['host']; |
| | | $smtp_port = $smtp_host_url['port']; |
| | | } |
| | | |
| | | // re-write smtp host |
| | | if (isset($smtp_host_url['host']) && isset($smtp_host_url['scheme'])) |
| | | $smtp_host = sprintf('%s://%s', $smtp_host_url['scheme'], $smtp_host_url['host']); |
| | | |
| | | if (!empty($CONFIG['smtp_helo_host'])) |
| | | $helo_host = $CONFIG['smtp_helo_host']; |
| | | else if (!empty($_SERVER['SERVER_NAME'])) |
| | | $helo_host = preg_replace('/:\d+$/', '', $_SERVER['SERVER_NAME']); |
| | | else |
| | | $helo_host = 'localhost'; |
| | | |
| | | $this->conn = new Net_SMTP($smtp_host, $smtp_port, $helo_host); |
| | | |
| | | if($RCMAIL->config->get('smtp_debug')) |
| | | $this->conn->setDebug(true, array($this, 'debug_handler')); |
| | | |
| | | // try to connect to server and exit on failure |
| | | $result = $this->conn->connect($smtp_timeout); |
| | | if (PEAR::isError($result)) |
| | | { |
| | | $this->response[] = "Connection failed: ".$result->getMessage(); |
| | | $this->error = array('label' => 'smtpconnerror', 'vars' => array('code' => $this->conn->_code)); |
| | | $this->conn = null; |
| | | return false; |
| | | } |
| | | |
| | | $smtp_user = str_replace('%u', $_SESSION['username'], $CONFIG['smtp_user']); |
| | | $smtp_pass = str_replace('%p', $RCMAIL->decrypt($_SESSION['password']), $CONFIG['smtp_pass']); |
| | | $smtp_auth_type = empty($CONFIG['smtp_auth_type']) ? NULL : $CONFIG['smtp_auth_type']; |
| | | |
| | | // attempt to authenticate to the SMTP server |
| | | if ($smtp_user && $smtp_pass) |
| | | { |
| | | $result = $this->conn->auth($smtp_user, $smtp_pass, $smtp_auth_type); |
| | | if (PEAR::isError($result)) |
| | | { |
| | | $this->error = array('label' => 'smtpautherror', 'vars' => array('code' => $this->conn->_code)); |
| | | $this->response[] .= 'Authentication failure: ' . $result->getMessage() . ' (Code: ' . $result->getCode() . ')'; |
| | | $this->reset(); |
| | | $this->disconnect(); |
| | | return false; |
| | | } |
| | | } |
| | | |
| | | return true; |
| | | } |
| | | |
| | | |
| | | /** |
| | | * Function for sending mail |
| | | * |
| | | * @param string Sender e-Mail address |
| | | * |
| | | * @param mixed Either a comma-seperated list of recipients |
| | | * (RFC822 compliant), or an array of recipients, |
| | | * each RFC822 valid. This may contain recipients not |
| | | * specified in the headers, for Bcc:, resending |
| | | * messages, etc. |
| | | * |
| | | * @param mixed The message headers to send with the mail |
| | | * Either as an associative array or a finally |
| | | * formatted string |
| | | * |
| | | * @param string The full text of the message body, including any Mime parts, etc. |
| | | * |
| | | * @return bool Returns true on success, or false on error |
| | | */ |
| | | public function send_mail($from, $recipients, &$headers, &$body) |
| | | { |
| | | if (!is_object($this->conn)) |
| | | return false; |
| | | |
| | | // prepare message headers as string |
| | | if (is_array($headers)) |
| | | { |
| | | if (!($headerElements = $this->_prepare_headers($headers))) { |
| | | $this->reset(); |
| | | return false; |
| | | } |
| | | |
| | | list($from, $text_headers) = $headerElements; |
| | | } |
| | | else if (is_string($headers)) |
| | | $text_headers = $headers; |
| | | else |
| | | { |
| | | $this->reset(); |
| | | $this->response[] .= "Invalid message headers"; |
| | | return false; |
| | | } |
| | | |
| | | // exit if no from address is given |
| | | if (!isset($from)) |
| | | { |
| | | $this->reset(); |
| | | $this->response[] .= "No From address has been provided"; |
| | | return false; |
| | | } |
| | | |
| | | // set From: address |
| | | if (PEAR::isError($this->conn->mailFrom($from))) |
| | | { |
| | | $this->error = array('label' => 'smtpfromerror', 'vars' => array('from' => $from, 'code' => $this->conn->_code)); |
| | | $this->response[] .= "Failed to set sender '$from'"; |
| | | $this->reset(); |
| | | return false; |
| | | } |
| | | |
| | | // prepare list of recipients |
| | | $recipients = $this->_parse_rfc822($recipients); |
| | | if (PEAR::isError($recipients)) |
| | | { |
| | | $this->error = array('label' => 'smtprecipientserror'); |
| | | $this->reset(); |
| | | return false; |
| | | } |
| | | |
| | | // set mail recipients |
| | | foreach ($recipients as $recipient) |
| | | { |
| | | if (PEAR::isError($this->conn->rcptTo($recipient))) { |
| | | $this->error = array('label' => 'smtptoerror', 'vars' => array('to' => $recipient, 'code' => $this->conn->_code)); |
| | | $this->response[] .= "Failed to add recipient '$recipient'"; |
| | | $this->reset(); |
| | | return false; |
| | | } |
| | | } |
| | | |
| | | // Concatenate headers and body so it can be passed by reference to SMTP_CONN->data |
| | | // so preg_replace in SMTP_CONN->quotedata will store a reference instead of a copy. |
| | | // We are still forced to make another copy here for a couple ticks so we don't really |
| | | // get to save a copy in the method call. |
| | | $data = $text_headers . "\r\n" . $body; |
| | | |
| | | // unset old vars to save data and so we can pass into SMTP_CONN->data by reference. |
| | | unset($text_headers, $body); |
| | | |
| | | // Send the message's headers and the body as SMTP data. |
| | | if (PEAR::isError($result = $this->conn->data($data))) |
| | | { |
| | | $this->error = array('label' => 'smtperror', 'vars' => array('msg' => $result->getMessage())); |
| | | $this->response[] .= "Failed to send data"; |
| | | $this->reset(); |
| | | return false; |
| | | } |
| | | |
| | | $this->response[] = join(': ', $this->conn->getResponse()); |
| | | return true; |
| | | } |
| | | |
| | | |
| | | /** |
| | | * Reset the global SMTP connection |
| | | * @access public |
| | | */ |
| | | public function reset() |
| | | { |
| | | if (is_object($this->conn)) |
| | | $this->conn->rset(); |
| | | } |
| | | |
| | | |
| | | /** |
| | | * Disconnect the global SMTP connection |
| | | * @access public |
| | | */ |
| | | public function disconnect() |
| | | { |
| | | if (is_object($this->conn)) { |
| | | $this->conn->disconnect(); |
| | | $this->conn = null; |
| | | } |
| | | } |
| | | |
| | | |
| | | /** |
| | | * This is our own debug handler for the SMTP connection |
| | | * @access public |
| | | */ |
| | | public function debug_handler(&$smtp, $message) |
| | | { |
| | | write_log('smtp', preg_replace('/\r\n$/', '', $message)); |
| | | } |
| | | |
| | | |
| | | /** |
| | | * Get error message |
| | | * @access public |
| | | */ |
| | | public function get_error() |
| | | { |
| | | return $this->error; |
| | | } |
| | | |
| | | |
| | | /** |
| | | * Get server response messages array |
| | | * @access public |
| | | */ |
| | | public function get_response() |
| | | { |
| | | return $this->response; |
| | | } |
| | | |
| | | |
| | | /** |
| | | * Take an array of mail headers and return a string containing |
| | | * text usable in sending a message. |
| | | * |
| | | * @param array $headers The array of headers to prepare, in an associative |
| | | * array, where the array key is the header name (ie, |
| | | * 'Subject'), and the array value is the header |
| | | * value (ie, 'test'). The header produced from those |
| | | * values would be 'Subject: test'. |
| | | * |
| | | * @return mixed Returns false if it encounters a bad address, |
| | | * otherwise returns an array containing two |
| | | * elements: Any From: address found in the headers, |
| | | * and the plain text version of the headers. |
| | | * @access private |
| | | */ |
| | | private function _prepare_headers($headers) |
| | | { |
| | | $lines = array(); |
| | | $from = null; |
| | | |
| | | foreach ($headers as $key => $value) |
| | | { |
| | | if (strcasecmp($key, 'From') === 0) |
| | | { |
| | | $addresses = $this->_parse_rfc822($value); |
| | | |
| | | if (is_array($addresses)) |
| | | $from = $addresses[0]; |
| | | |
| | | // Reject envelope From: addresses with spaces. |
| | | if (strstr($from, ' ')) |
| | | return false; |
| | | |
| | | $lines[] = $key . ': ' . $value; |
| | | } |
| | | else if (strcasecmp($key, 'Received') === 0) |
| | | { |
| | | $received = array(); |
| | | if (is_array($value)) |
| | | { |
| | | foreach ($value as $line) |
| | | $received[] = $key . ': ' . $line; |
| | | } |
| | | else |
| | | { |
| | | $received[] = $key . ': ' . $value; |
| | | } |
| | | |
| | | // Put Received: headers at the top. Spam detectors often |
| | | // flag messages with Received: headers after the Subject: |
| | | // as spam. |
| | | $lines = array_merge($received, $lines); |
| | | } |
| | | else |
| | | { |
| | | // If $value is an array (i.e., a list of addresses), convert |
| | | // it to a comma-delimited string of its elements (addresses). |
| | | if (is_array($value)) |
| | | $value = implode(', ', $value); |
| | | |
| | | $lines[] = $key . ': ' . $value; |
| | | } |
| | | } |
| | | |
| | | return array($from, join(SMTP_MIME_CRLF, $lines) . SMTP_MIME_CRLF); |
| | | } |
| | | |
| | | /** |
| | | * Take a set of recipients and parse them, returning an array of |
| | | * bare addresses (forward paths) that can be passed to sendmail |
| | | * or an smtp server with the rcpt to: command. |
| | | * |
| | | * @param mixed Either a comma-seperated list of recipients |
| | | * (RFC822 compliant), or an array of recipients, |
| | | * each RFC822 valid. |
| | | * |
| | | * @return array An array of forward paths (bare addresses). |
| | | * @access private |
| | | */ |
| | | private function _parse_rfc822($recipients) |
| | | { |
| | | // if we're passed an array, assume addresses are valid and implode them before parsing. |
| | | if (is_array($recipients)) |
| | | $recipients = implode(', ', $recipients); |
| | | |
| | | $addresses = array(); |
| | | $recipients = rcube_explode_quoted_string(',', $recipients); |
| | | |
| | | reset($recipients); |
| | | while (list($k, $recipient) = each($recipients)) |
| | | { |
| | | $a = explode(" ", $recipient); |
| | | while (list($k2, $word) = each($a)) |
| | | { |
| | | if ((strpos($word, "@") > 0) && (strpos($word, "\"")===false)) |
| | | { |
| | | $word = preg_replace('/^<|>$/', '', trim($word)); |
| | | if (in_array($word, $addresses)===false) |
| | | array_push($addresses, $word); |
| | | } |
| | | } |
| | | } |
| | | return $addresses; |
| | | } |
| | | |
| | | } |
| | | |
| | | ?> |