<?php
if (!defined('BB_ROOT')) die(basename(__FILE__));
define('SMTP_INCLUDED', 1);
function server_parse($socket, $response, $line = __LINE__)
{
$server_response = '';
while (substr($server_response, 3, 1) != ' ')
{
if (!($server_response = fgets($socket, 256)))
{
bb_die('Could not get mail server response codes');
}
}
if (!(substr($server_response, 0, 3) == $response))
{
bb_die('Ran into problems sending mail. Response: '. $server_response);
}
}
// Replacement or substitute for PHP's mail command
function smtpmail($mail_to, $subject, $message, $headers = '')
{
global $bb_cfg;
// Fix any bare linefeeds in the message to make it RFC821 Compliant.
$message = preg_replace("#(?<!\r)\n#si", "\r\n", $message);
if ($headers != '')
{
if (is_array($headers))
{
if (sizeof($headers) > 1)
{
$headers = join("\n", $headers);
}
else
{
$headers = $headers[0];
}
}
$headers = chop($headers);
// Make sure there are no bare linefeeds in the headers
$headers = preg_replace('#(?<!\r)\n#si', "\r\n", $headers);
// Ok this is rather confusing all things considered,
// but we have to grab bcc and cc headers and treat them differently
// Something we really didn't take into consideration originally
$header_array = explode("\r\n", $headers);
@reset($header_array);
$headers = $cc = $bcc = '';
while(list(, $header) = each($header_array))
{
if (preg_match('#^cc:#si', $header))
{
$cc = preg_replace('#^cc:(.*)#si', '\1', $header);
}
else if (preg_match('#^bcc:#si', $header))
{
$bcc = preg_replace('#^bcc:(.*)#si', '\1', $header);
$header = '';
}
$headers .= ($header != '') ? $header . "\r\n" : '';
}
$headers = chop($headers);
$cc = explode(', ', $cc);
$bcc = explode(', ', $bcc);
}
if (trim($subject) == '')
{
bb_die('No email subject specified');
}
if (trim($message) == '')
{
bb_die('Email message was blank');
}
// Ok we have error checked as much as we can to this point let's get on
// it already.
$ssl = ($bb_cfg['smtp_ssl']) ? 'ssl://' : '';
if( !$socket = @fsockopen($ssl . $bb_cfg['smtp_host'], $bb_cfg['smtp_port'], $errno, $errstr, 20) )
{
bb_die('Could not connect to smtp host : '. $errno .' : '. $errstr);
}
// Wait for reply
server_parse($socket, "220", __LINE__);
// Do we want to use AUTH?, send RFC2554 EHLO, else send RFC821 HELO
// This improved as provided by SirSir to accomodate
if( !empty($bb_cfg['smtp_username']) && !empty($bb_cfg['smtp_password']) )
{
fputs($socket, "EHLO " . $bb_cfg['smtp_host'] . "\r\n");
server_parse($socket, "250", __LINE__);
fputs($socket, "AUTH LOGIN\r\n");
server_parse($socket, "334", __LINE__);
fputs($socket, base64_encode($bb_cfg['smtp_username']) . "\r\n");
server_parse($socket, "334", __LINE__);
fputs($socket, base64_encode($bb_cfg['smtp_password']) . "\r\n");
server_parse($socket, "235", __LINE__);
}
else
{
fputs($socket, "HELO " . $bb_cfg['smtp_host'] . "\r\n");
server_parse($socket, "250", __LINE__);
}
// From this point onward most server response codes should be 250
// Specify who the mail is from....
fputs($socket, "MAIL FROM: <" . $bb_cfg['board_email'] . ">\r\n");
server_parse($socket, "250", __LINE__);
// Add an additional bit of error checking to the To field.
$mail_to = (trim($mail_to) == '') ? 'Undisclosed-recipients:;' : trim($mail_to);
if (preg_match('#[^ ]+\@[^ ]+#', $mail_to))
{
fputs($socket, "RCPT TO: <$mail_to>\r\n");
server_parse($socket, "250", __LINE__);
}
// Ok now do the CC and BCC fields...
@reset($bcc);
while(list(, $bcc_address) = each($bcc))
{
// Add an additional bit of error checking to bcc header...
$bcc_address = trim($bcc_address);
if (preg_match('#[^ ]+\@[^ ]+#', $bcc_address))
{
fputs($socket, "RCPT TO: <$bcc_address>\r\n");
server_parse($socket, "250", __LINE__);
}
}
@reset($cc);
while(list(, $cc_address) = each($cc))
{
// Add an additional bit of error checking to cc header
$cc_address = trim($cc_address);
if (preg_match('#[^ ]+\@[^ ]+#', $cc_address))
{
fputs($socket, "RCPT TO: <$cc_address>\r\n");
server_parse($socket, "250", __LINE__);
}
}
// Ok now we tell the server we are ready to start sending data
fputs($socket, "DATA\r\n");
// This is the last response code we look for until the end of the message.
server_parse($socket, "354", __LINE__);
// Send the Subject Line...
fputs($socket, "Subject: $subject\r\n");
// Now the To Header.
fputs($socket, "To: $mail_to\r\n");
// Now any custom headers....
fputs($socket, "$headers\r\n\r\n");
// Ok now we are ready for the message...
fputs($socket, "$message\r\n");
// Ok the all the ingredients are mixed in let's cook this puppy...
fputs($socket, ".\r\n");
server_parse($socket, "250", __LINE__);
// Now tell the server we are done and close the socket...
fputs($socket, "QUIT\r\n");
fclose($socket);
return TRUE;
}
