<?php
/***************************************************************************
* smtp.php
* -------------------
* begin : Wed May 09 2001
* copyright : (C) 2001 The phpBB Group
* email : support@phpbb.com
*
* $Id$
*
***************************************************************************/
/***************************************************************************
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
***************************************************************************/
define('SMTP_INCLUDED', 1);
//
// This function has been modified as provided
// by SirSir to allow multiline responses when
// using SMTP Extensions
//
function server_parse($socket, $response)
{
while ( substr($server_response,3,1) != ' ' )
{
if( !( $server_response = fgets($socket, 256) ) )
{
message_die(GENERAL_ERROR, "Couldn't get mail server response codes", "", __LINE__, __FILE__);
}
}
if( !( substr($server_response, 0, 3) == $response ) )
{
message_die(GENERAL_ERROR, "Ran into problems sending Mail. Response: $server_response", "", __LINE__, __FILE__);
}
}
/****************************************************************************
* Function: smtpmail
* Description: This is a functional replacement for php's builtin mail
* function, that uses smtp.
* Usage: The usage for this function is identical to that of php's
* built in mail function.
****************************************************************************/
function smtpmail($mail_to, $subject, $message, $headers = "")
{
// For now I'm using an array based $smtp_vars to hold the smtp server
// info, but it should probably change to $board_config...
// then the relevant info would be $board_config['smtp_host'] and
// $board_config['smtp_port'].
global $board_config;
//
// 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("\r\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 = "";
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 . "\r\n";
}
$headers = chop($headers);
$cc = explode(",", $cc);
$bcc = explode(",", $bcc);
}
if(trim($mail_to) == "")
{
message_die(GENERAL_ERROR, "No email address specified", "", __LINE__, __FILE__);
}
if(trim($subject) == "")
{
message_die(GENERAL_ERROR, "No email Subject specified", "", __LINE__, __FILE__);
}
if(trim($message) == "")
{
message_die(GENERAL_ERROR, "Email message was blank", "", __LINE__, __FILE__);
}
$mail_to_array = explode(",", $mail_to);
//
// Ok we have error checked as much as we can to this point let's get on
// it already.
//
if( !$socket = fsockopen($board_config['smtp_host'], 25, $errno, $errstr, 20) )
{
message_die(GENERAL_ERROR, "Could not connect to smtp host : $errno : $errstr", "", __LINE__, __FILE__);
}
server_parse($socket, "220");
if( !empty($board_config['smtp_username']) && !empty($board_config['smtp_password']) )
{
// Send the RFC2554 specified EHLO.
// This improved as provided by SirSir to accomodate
// both SMTP AND ESMTP capable servers
fputs($socket, "EHLO " . $board_config['smtp_host'] . "\r\n");
server_parse($socket, "250");
fputs($socket, "AUTH LOGIN\r\n");
server_parse($socket, "334");
fputs($socket, base64_encode($board_config['smtp_username']) . "\r\n");
server_parse($socket, "334");
fputs($socket, base64_encode($board_config['smtp_password']) . "\r\n");
server_parse($socket, "235");
}
else
{
// Send the RFC821 specified HELO.
fputs($socket, "HELO " . $board_config['smtp_host'] . "\r\n");
server_parse($socket, "250");
}
// From this point onward most server response codes should be 250
// Specify who the mail is from....
fputs($socket, "MAIL FROM: <" . $board_config['board_email'] . ">\r\n");
server_parse($socket, "250");
// Specify each user to send to and build to header.
$to_header = "To: ";
@reset( $mail_to_array );
while( list( , $mail_to_address ) = each( $mail_to_array ))
{
//
// Add an additional bit of error checking to the To field.
//
$mail_to_address = trim($mail_to_address);
if ( preg_match('/[^ ]+\@[^ ]+/', $mail_to_address) )
{
fputs( $socket, "RCPT TO: <$mail_to_address>\r\n" );
server_parse( $socket, "250" );
}
$to_header .= "<$mail_to_address>, ";
}
// 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" );
}
}
@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");
}
}
// 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");
// Send the Subject Line...
fputs($socket, "Subject: $subject\r\n");
// Now the To Header.
fputs($socket, "$to_header\r\n");
// Now any custom headers....
fputs($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($socket, "250");
// Now tell the server we are done and close the socket...
fputs($socket, "QUIT\r\n");
fclose($socket);
return TRUE;
}
?>