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-rw-r--r--program/lib/Roundcube/rcube_smtp.php470
1 files changed, 470 insertions, 0 deletions
diff --git a/program/lib/Roundcube/rcube_smtp.php b/program/lib/Roundcube/rcube_smtp.php
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+++ b/program/lib/Roundcube/rcube_smtp.php
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+<?php
+
+/*
+ +-----------------------------------------------------------------------+
+ | program/include/rcube_smtp.php |
+ | |
+ | This file is part of the Roundcube Webmail client |
+ | Copyright (C) 2005-2010, The Roundcube Dev Team |
+ | |
+ | Licensed under the GNU General Public License version 3 or |
+ | any later version with exceptions for skins & plugins. |
+ | See the README file for a full license statement. |
+ | |
+ | PURPOSE: |
+ | Provide SMTP functionality using socket connections |
+ | |
+ +-----------------------------------------------------------------------+
+ | Author: Thomas Bruederli <roundcube@gmail.com> |
+ +-----------------------------------------------------------------------+
+*/
+
+// define headers delimiter
+define('SMTP_MIME_CRLF', "\r\n");
+
+/**
+ * Class to provide SMTP functionality using PEAR Net_SMTP
+ *
+ * @package Framework
+ * @subpackage Mail
+ * @author Thomas Bruederli <roundcube@gmail.com>
+ * @author Aleksander Machniak <alec@alec.pl>
+ */
+class rcube_smtp
+{
+
+ private $conn = null;
+ private $response;
+ private $error;
+
+
+ /**
+ * SMTP Connection and authentication
+ *
+ * @param string Server host
+ * @param string Server port
+ * @param string User name
+ * @param string Password
+ *
+ * @return bool Returns true on success, or false on error
+ */
+ public function connect($host=null, $port=null, $user=null, $pass=null)
+ {
+ $rcube = rcube::get_instance();
+
+ // disconnect/destroy $this->conn
+ $this->disconnect();
+
+ // reset error/response var
+ $this->error = $this->response = null;
+
+ // let plugins alter smtp connection config
+ $CONFIG = $rcube->plugins->exec_hook('smtp_connect', array(
+ 'smtp_server' => $host ? $host : $rcube->config->get('smtp_server'),
+ 'smtp_port' => $port ? $port : $rcube->config->get('smtp_port', 25),
+ 'smtp_user' => $user ? $user : $rcube->config->get('smtp_user'),
+ 'smtp_pass' => $pass ? $pass : $rcube->config->get('smtp_pass'),
+ 'smtp_auth_cid' => $rcube->config->get('smtp_auth_cid'),
+ 'smtp_auth_pw' => $rcube->config->get('smtp_auth_pw'),
+ 'smtp_auth_type' => $rcube->config->get('smtp_auth_type'),
+ 'smtp_helo_host' => $rcube->config->get('smtp_helo_host'),
+ 'smtp_timeout' => $rcube->config->get('smtp_timeout'),
+ 'smtp_auth_callbacks' => array(),
+ ));
+
+ $smtp_host = rcube_utils::parse_host($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']);
+
+ // remove TLS prefix and set flag for use in Net_SMTP::auth()
+ if (preg_match('#^tls://#i', $smtp_host)) {
+ $smtp_host = preg_replace('#^tls://#i', '', $smtp_host);
+ $use_tls = true;
+ }
+
+ if (!empty($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';
+
+ // IDNA Support
+ $smtp_host = rcube_utils::idn_to_ascii($smtp_host);
+
+ $this->conn = new Net_SMTP($smtp_host, $smtp_port, $helo_host);
+
+ if ($rcube->config->get('smtp_debug'))
+ $this->conn->setDebug(true, array($this, 'debug_handler'));
+
+ // register authentication methods
+ if (!empty($CONFIG['smtp_auth_callbacks']) && method_exists($this->conn, 'setAuthMethod')) {
+ foreach ($CONFIG['smtp_auth_callbacks'] as $callback) {
+ $this->conn->setAuthMethod($callback['name'], $callback['function'],
+ isset($callback['prepend']) ? $callback['prepend'] : true);
+ }
+ }
+
+ // 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));
+ $this->conn = null;
+ return false;
+ }
+
+ // workaround for timeout bug in Net_SMTP 1.5.[0-1] (#1487843)
+ if (method_exists($this->conn, 'setTimeout')
+ && ($timeout = ini_get('default_socket_timeout'))
+ ) {
+ $this->conn->setTimeout($timeout);
+ }
+
+ $smtp_user = str_replace('%u', $_SESSION['username'], $CONFIG['smtp_user']);
+ $smtp_pass = str_replace('%p', $rcube->decrypt($_SESSION['password']), $CONFIG['smtp_pass']);
+ $smtp_auth_type = empty($CONFIG['smtp_auth_type']) ? NULL : $CONFIG['smtp_auth_type'];
+
+ if (!empty($CONFIG['smtp_auth_cid'])) {
+ $smtp_authz = $smtp_user;
+ $smtp_user = $CONFIG['smtp_auth_cid'];
+ $smtp_pass = $CONFIG['smtp_auth_pw'];
+ }
+
+ // attempt to authenticate to the SMTP server
+ if ($smtp_user && $smtp_pass)
+ {
+ // IDNA Support
+ if (strpos($smtp_user, '@')) {
+ $smtp_user = rcube_utils::idn_to_ascii($smtp_user);
+ }
+
+ $result = $this->conn->auth($smtp_user, $smtp_pass, $smtp_auth_type, $use_tls, $smtp_authz);
+
+ if (PEAR::isError($result))
+ {
+ $this->error = array('label' => 'smtpautherror', 'vars' => array('code' => $this->conn->_code));
+ $this->response[] .= 'Authentication failure: ' . $result->getMessage() . ' (Code: ' . $result->getCode() . ')';
+ $this->reset();
+ $this->disconnect();
+ return false;
+ }
+ }
+
+ return true;
+ }
+
+
+ /**
+ * Function for sending mail
+ *
+ * @param string Sender e-Mail address
+ *
+ * @param mixed Either a comma-seperated list of recipients
+ * (RFC822 compliant), or an array of recipients,
+ * each RFC822 valid. This may contain recipients not
+ * specified in the headers, for Bcc:, resending
+ * messages, etc.
+ * @param mixed The message headers to send with the mail
+ * Either as an associative array or a finally
+ * formatted string
+ * @param mixed The full text of the message body, including any Mime parts
+ * or file handle
+ * @param array Delivery options (e.g. DSN request)
+ *
+ * @return bool Returns true on success, or false on error
+ */
+ public function send_mail($from, $recipients, &$headers, &$body, $opts=null)
+ {
+ if (!is_object($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();
+ $this->response[] = "No From address has been provided";
+ return false;
+ }
+
+ // RFC3461: Delivery Status Notification
+ if ($opts['dsn']) {
+ $exts = $this->conn->getServiceExtensions();
+
+ if (isset($exts['DSN'])) {
+ $from_params = 'RET=HDRS';
+ $recipient_params = 'NOTIFY=SUCCESS,FAILURE';
+ }
+ }
+
+ // RFC2298.3: remove envelope sender address
+ if (preg_match('/Content-Type: multipart\/report/', $text_headers)
+ && preg_match('/report-type=disposition-notification/', $text_headers)
+ ) {
+ $from = '';
+ }
+
+ // set From: address
+ if (PEAR::isError($this->conn->mailFrom($from, $from_params)))
+ {
+ $err = $this->conn->getResponse();
+ $this->error = array('label' => 'smtpfromerror', 'vars' => array(
+ 'from' => $from, 'code' => $this->conn->_code, 'msg' => $err[1]));
+ $this->response[] = "Failed to set sender '$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, $recipient_params))) {
+ $err = $this->conn->getResponse();
+ $this->error = array('label' => 'smtptoerror', 'vars' => array(
+ 'to' => $recipient, 'code' => $this->conn->_code, 'msg' => $err[1]));
+ $this->response[] = "Failed to add recipient '$recipient'";
+ $this->reset();
+ return false;
+ }
+ }
+
+ if (is_resource($body))
+ {
+ // file handle
+ $data = $body;
+ $text_headers = preg_replace('/[\r\n]+$/', '', $text_headers);
+ } else {
+ // 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, $text_headers)))
+ {
+ $err = $this->conn->getResponse();
+ if (!in_array($err[0], array(354, 250, 221)))
+ $msg = sprintf('[%d] %s', $err[0], $err[1]);
+ else
+ $msg = $result->getMessage();
+
+ $this->error = array('label' => 'smtperror', 'vars' => array('msg' => $msg));
+ $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, $message)
+ {
+ rcube::write_log('smtp', preg_replace('/\r\n$/', '', $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 = $addresses[0];
+
+ // Reject envelope From: addresses with spaces.
+ if (strpos($from, ' ') !== false)
+ 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_utils::explode_quoted_string(',', $recipients);
+
+ reset($recipients);
+ while (list($k, $recipient) = each($recipients))
+ {
+ $a = rcube_utils::explode_quoted_string(' ', $recipient);
+ while (list($k2, $word) = each($a))
+ {
+ if (strpos($word, "@") > 0 && $word[strlen($word)-1] != '"')
+ {
+ $word = preg_replace('/^<|>$/', '', trim($word));
+ if (in_array($word, $addresses)===false)
+ array_push($addresses, $word);
+ }
+ }
+ }
+
+ return $addresses;
+ }
+
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-08 01:36:16 +0000