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| | | <? |
| | | |
| | | /* |
| | | +-----------------------------------------------------------------------+ |
| | | | program/include/rcube_smtp.inc | |
| | | | | |
| | | | This file is part of the RoundCube Webmail client | |
| | | | Copyright (C) 2005, RoundCube Dev. - Switzerland | |
| | | | Licensed under the GNU GPL | |
| | | | | |
| | | | PURPOSE: | |
| | | | Provide SMTP functionality using socket connections | |
| | | | | |
| | | +-----------------------------------------------------------------------+ |
| | | | Author: Thomas Bruederli <roundcube@gmail.com> | |
| | | +-----------------------------------------------------------------------+ |
| | | |
| | | $Id$ |
| | | |
| | | */ |
| | | |
| | | |
| | | // include required PEAR classes |
| | | require_once('Net/SMTP.php'); |
| | | |
| | | |
| | | // define headers delimiter |
| | | define('SMTP_MIME_CRLF', "\r\n"); |
| | | |
| | | $SMTP_CONN = null; |
| | | |
| | | /** |
| | | * Function for sending mail using SMTP. |
| | | * |
| | | * @param string Sender e-Mail address |
| | | * |
| | | * @param mixed Either a comma-seperated list of recipients |
| | | * (RFC822 compliant), or an array of recipients, |
| | | * each RFC822 valid. This may contain recipients not |
| | | * specified in the headers, for Bcc:, resending |
| | | * messages, etc. |
| | | * |
| | | * @param mixed The message headers to send with the mail |
| | | * Either as an associative array or a finally |
| | | * formatted string |
| | | * |
| | | * @param string The full text of the message body, including any Mime parts, etc. |
| | | * |
| | | * @return bool Returns TRUE on success, or FALSE on error |
| | | * @access public |
| | | */ |
| | | function smtp_mail($from, $recipients, $headers, $body) |
| | | { |
| | | global $SMTP_CONN, $CONFIG, $SMTP_ERROR; |
| | | $smtp_timeout = null; |
| | | $smtp_port = is_numeric($CONFIG['smtp_port']) ? $CONFIG['smtp_port'] : 25; |
| | | |
| | | // create Net_SMTP object and connect to server |
| | | if (!is_object($smtp_conn)) |
| | | { |
| | | $SMTP_CONN = new Net_SMTP($CONFIG['smtp_server'], $smtp_port, 'localhost'); |
| | | |
| | | // set debugging |
| | | if ($CONFIG['debug_level'] & 8) |
| | | $SMTP_CONN->setDebug(TRUE); |
| | | |
| | | |
| | | // try to connect to server and exit on failure |
| | | if (PEAR::isError($SMTP_CONN->connect($smtp_timeout))) |
| | | { |
| | | $SMTP_CONN = null; |
| | | $SMTP_ERROR .= "Connection failed\n"; |
| | | return FALSE; |
| | | } |
| | | |
| | | |
| | | // attempt to authenticate to the SMTP server |
| | | if ($CONFIG['smtp_user'] && $CONFIG['smtp_pass']) |
| | | { |
| | | if (PEAR::isError($SMTP_CONN->auth($CONFIG['smtp_user'], $CONFIG['smtp_pass']))) |
| | | { |
| | | smtp_reset(); |
| | | $SMTP_ERROR .= "authentication failure\n"; |
| | | return FALSE; |
| | | } |
| | | } |
| | | } |
| | | |
| | | |
| | | // prepare message headers as string |
| | | if (is_array($headers)) |
| | | { |
| | | $headerElements = smtp_prepare_headers($headers); |
| | | if (!$headerElements) |
| | | { |
| | | smtp_reset(); |
| | | return FALSE; |
| | | } |
| | | |
| | | list($from, $text_headers) = $headerElements; |
| | | } |
| | | else if (is_string($headers)) |
| | | $text_headers = $headers; |
| | | else |
| | | { |
| | | smtp_reset(); |
| | | $SMTP_ERROR .= "Invalid message headers\n"; |
| | | return FALSE; |
| | | } |
| | | |
| | | // exit if no from address is given |
| | | if (!isset($from)) |
| | | { |
| | | smtp_reset(); |
| | | $SMTP_ERROR .= "No From address has been provided\n"; |
| | | return FALSE; |
| | | } |
| | | |
| | | |
| | | // set From: address |
| | | if (PEAR::isError($SMTP_CONN->mailFrom($from))) |
| | | { |
| | | smtp_reset(); |
| | | $SMTP_ERROR .= "Failed to set sender '$from'\n"; |
| | | return FALSE; |
| | | } |
| | | |
| | | |
| | | // prepare list of recipients |
| | | $recipients = smtp_parse_rfc822($recipients); |
| | | if (PEAR::isError($recipients)) |
| | | { |
| | | smtp_reset(); |
| | | return FALSE; |
| | | } |
| | | |
| | | |
| | | // set mail recipients |
| | | foreach ($recipients as $recipient) |
| | | { |
| | | if (PEAR::isError($SMTP_CONN->rcptTo($recipient))) |
| | | { |
| | | smtp_reset(); |
| | | $SMTP_ERROR .= "Failed to add recipient '$recipient'\n"; |
| | | return FALSE; |
| | | } |
| | | } |
| | | |
| | | |
| | | // Send the message's headers and the body as SMTP data. |
| | | if (PEAR::isError($SMTP_CONN->data("$text_headers\r\n$body"))) |
| | | { |
| | | smtp_reset(); |
| | | $SMTP_ERROR .= "Failed to send data\n"; |
| | | return FALSE; |
| | | } |
| | | |
| | | |
| | | return TRUE; |
| | | } |
| | | |
| | | |
| | | |
| | | /** |
| | | * Reset the global SMTP connection |
| | | * @access public |
| | | */ |
| | | function smtp_reset() |
| | | { |
| | | global $SMTP_CONN; |
| | | |
| | | if (is_object($SMTP_CONN)) |
| | | { |
| | | $SMTP_CONN->rset(); |
| | | smtp_disconnect(); |
| | | } |
| | | } |
| | | |
| | | |
| | | |
| | | /** |
| | | * Disconnect the global SMTP connection and destroy object |
| | | * @access public |
| | | */ |
| | | function smtp_disconnect() |
| | | { |
| | | global $SMTP_CONN; |
| | | |
| | | if (is_object($SMTP_CONN)) |
| | | { |
| | | $SMTP_CONN->disconnect(); |
| | | $SMTP_CONN = null; |
| | | } |
| | | } |
| | | |
| | | |
| | | /** |
| | | * Take an array of mail headers and return a string containing |
| | | * text usable in sending a message. |
| | | * |
| | | * @param array $headers The array of headers to prepare, in an associative |
| | | * array, where the array key is the header name (ie, |
| | | * 'Subject'), and the array value is the header |
| | | * value (ie, 'test'). The header produced from those |
| | | * values would be 'Subject: test'. |
| | | * |
| | | * @return mixed Returns false if it encounters a bad address, |
| | | * otherwise returns an array containing two |
| | | * elements: Any From: address found in the headers, |
| | | * and the plain text version of the headers. |
| | | * @access private |
| | | */ |
| | | function smtp_prepare_headers($headers) |
| | | { |
| | | $lines = array(); |
| | | $from = null; |
| | | |
| | | foreach ($headers as $key => $value) |
| | | { |
| | | if (strcasecmp($key, 'From') === 0) |
| | | { |
| | | $addresses = smtp_parse_rfc822($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, $lines) . SMTP_MIME_CRLF); |
| | | } |
| | | |
| | | |
| | | |
| | | /** |
| | | * Take a set of recipients and parse them, returning an array of |
| | | * bare addresses (forward paths) that can be passed to sendmail |
| | | * or an smtp server with the rcpt to: command. |
| | | * |
| | | * @param mixed Either a comma-seperated list of recipients |
| | | * (RFC822 compliant), or an array of recipients, |
| | | * each RFC822 valid. |
| | | * |
| | | * @return array An array of forward paths (bare addresses). |
| | | * @access private |
| | | */ |
| | | function smtp_parse_rfc822($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 = smtp_explode_quoted_str(",", $recipients); |
| | | |
| | | reset($recipients); |
| | | while (list($k, $recipient) = each($recipients)) |
| | | { |
| | | $a = explode(" ", $recipient); |
| | | while (list($k2, $word) = each($a)) |
| | | { |
| | | if ((strpos($word, "@") > 0) && (strpos($word, "\"")===false)) |
| | | { |
| | | $word = ereg_replace('^<|>$', '', trim($word)); |
| | | if (in_array($word, $addresses)===false) |
| | | array_push($addresses, $word); |
| | | } |
| | | } |
| | | } |
| | | return $addresses; |
| | | } |
| | | |
| | | |
| | | function smtp_explode_quoted_str($delimiter, $string) |
| | | { |
| | | $quotes=explode("\"", $string); |
| | | while ( list($key, $val) = each($quotes)) |
| | | if (($key % 2) == 1) |
| | | $quotes[$key] = str_replace($delimiter, "_!@!_", $quotes[$key]); |
| | | $string=implode("\"", $quotes); |
| | | |
| | | $result=explode($delimiter, $string); |
| | | while (list($key, $val) = each($result)) |
| | | $result[$key] = str_replace("_!@!_", $delimiter, $result[$key]); |
| | | |
| | | return $result; |
| | | } |
| | | |
| | | |
| | | ?> |