Location: PHPKode > projects > Private Message System > pmsys-2.3.0/includes/smtp.php
<?php

/******************************************************************
* $Id: smtp.php,v 1.9 2003/08/22 20:57:39 allowee Exp $
*
* Copyright (C) 2001-2003 PMS Dev Team
*
* 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.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA  02111-1307, USA.
*
* The "GNU General Public License" (GPL) is available at
* http://www.gnu.org/copyleft/gpl.html.
******************************************************************/

class smtp {


/****************************************************************************
*	Function: 	server_parse
*	Description: This will get the response from the mail server
*	Usage:	Only used inside this class. But can be used outside 
*			this class aswell
****************************************************************************/
function server_parse($socket, $response) 
{ 
   while ( substr($server_response,3,1) != ' ' ) 
   { 
      if( !( $server_response = @fgets($socket, 256) ) ) 
      { 
         $this->error("Couldn't get mail server response codes");
      } 
   } 

   if( !( substr($server_response, 0, 3) == $response ) ) 
   { 
      $this->error("Ran into problems sending Mail. Response: $server_response");
   }
} 

/****************************************************************************
*	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 = "")
{

	global $smtp;

	//
	// 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(",", $bcc);
	}
	if($mail_to == "")
	{
		$this->error("No email address specified");
	}
	if(trim($subject) == "")
	{
		$this->error("No email Subject specified");
	}
	if(trim($message) == "")
	{
		$this->error("Email message was blank");
	}
	if( trim($smtp['from']) == ""){
		$this->error("No FROM address specified");
	}
	$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.
	// But first check the mail server.
	//
	if(trim($smtp['host']) == "")
	{
		$smtp['host'] = "localhost";
	}

	if( !$this->socket = @fsockopen($smtp['host'], 25, $errno, $errstr, 20) )
	{
		$this->error("Could not connect to smtp host : $errno : $errstr");
		$connection_error = true;
	}

	if( !$connection_error){

	$this->server_parse($this->socket, "220");

	if( !empty($smtp['username']) && !empty($smtp['password']) )
	{ 
		//
		// Send the RFC2554 specified EHLO. 
		// works on both SMTP AND ESMTP capable servers
		//
		fputs($this->socket, "EHLO " . $smtp['host'] . "\r\n");
		$this->server_parse($this->socket, "250"); 

		fputs($this->socket, "AUTH LOGIN\r\n"); 
		$this->server_parse($this->socket, "334"); 
		fputs($this->socket, base64_encode($smtp['username']) . "\r\n");
		$this->server_parse($this->socket, "334"); 
		fputs($this->socket, base64_encode($smtp['password']) . "\r\n");
		$this->server_parse($this->socket, "235"); 
	} 
	else 
	{ 
		// Send the RFC821 specified HELO.
		fputs($this->socket, "HELO " . $smtp['host'] . "\r\n");
		$this->server_parse($this->socket, "250"); 
	}

	// From this point onward most server response codes should be 250
	// Specify who the mail is from....

	fputs($this->socket, "MAIL FROM: <" . $smtp['from'] . ">\r\n");
	$this->server_parse($this->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( $this->socket, "RCPT TO: $mail_to_address\r\n" );
			$this->server_parse( $this->socket, "250" );
		}
		$to_header .= ( ( $mail_to_address != '' ) ? ', ' : '' ) . "$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( $this->socket, "RCPT TO: $bcc_address\r\n" );
			$this->server_parse( $this->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('/[^ ]+\@[^ ]+/', $cc_address) )
		{
			fputs($this->socket, "RCPT TO: $cc_address\r\n");
			$this->server_parse($this->socket, "250");
		}
	}
	// Ok now we tell the server we are ready to start sending data
	fputs($this->socket, "DATA\r\n");

	// This is the last response code we look for until the end of the message.
	$this->server_parse($this->socket, "354");

	// Send the Subject Line...
	fputs($this->socket, "Subject: $subject\r\n");

	// Send the Date Line...
	fputs($this->socket, "Date: ".date('r')."\r\n");

	// Now the To Header.
	fputs($this->socket, "$to_header\r\n");

	// SMTP mail header....
	fputs($this->socket, "X-Mailer: SMTP Class\r\n");

	// Now any custom headers....
	fputs($this->socket, "$headers\r\n\r\n");

	// Ok now we are ready for the message...
	fputs($this->socket, "$message\r\n");

	// Ok the all the ingredients are mixed in let's cook this puppy...
	fputs($this->socket, ".\r\n");
	if( !$this->server_parse($this->socket, "250")){
	fputs($this->socket, "QUIT\r\n");
	fclose($this->socket);
	return false;
	}

	// Now tell the server we are done and close the socket...
	fputs($this->socket, "QUIT\r\n");
	fclose($this->socket);

	return TRUE;
	}else{
	return FALSE;
	} // End connection checking
}


/****************************************************************************
*	Function: 	error
*	Description: Print error messages user friendly
*	Usage:	Only used inside this class.
****************************************************************************/
function error($message) {

echo $message."<br /><br />\r\n";
$this->mail_error = 'Yes';
}

}
// End class smtp
?>
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