<?php
/*=====================================================================*\
|| ################################################################### ||
|| # Iris Studios Shared Object Framework [#]version[#]
|| # --------------------------------------------------------------- # ||
|| # All parts of this file are Š2002-[#]year[#] Iris Studios, Inc. No     # || 
|| # part of this file may be reproduced in any way: part or whole.  # ||
|| # --------------------------------------------------------------- # ||
|| # Š2002 - [#]year[#] Iris Studios, Inc. | http://www.iris-studios.com   # ||
|| ################################################################### ||
\*=====================================================================*/

$OBJECT = 'Mail Sender';
$CLASS = 'Mail';
$OBJ = 'mail';

/**
* Mail Sender
*
* This framework is a wrapper for the PHP mail function that properly
* sends mail with full email headers.
*
* @author		Iris Studios, Inc.
* @copyright	Copyright Š2002 - [#]year[#], Iris Studios, Inc.
* @version		$Revision$
* 
*/
class Mail
{
	/**
	* Global environment variables
	*
	* @var	to			The recipient
	* @var	subject		Subject of the message
	* @var	body		Text/body of the email
	* @var	from		The sender's email
	* @var	fromname	The sender's name
	* @var	headers		Additional headers
	*/
	var $to = '';
	var $subject = '';
	var $body = '';
	var $from = '';
	var $fromname = '';
	var $headers = '';
	
	/**
	* Sends an email to the specified address with the specified
	* sender, subject, and body.
	*
	* @return	bool	Status of the message
	*/
	function send()
	{
		global $_isso;
		
		if (!@ini_get('sendmail_path'))
		{
			$_isso->debug("email: no sendmail -> not sending");
			return false;
		}
		
		$this->to = $this->_fetch_first_line($this->to);
		$this->from = $this->_fetch_first_line($this->from);
		
		if (!$this->from)
		{
			$_isso->debug("email: no from -> not sending");
			return false;
		}
		else
		{
			$this->from = trim($_isso->unsanitize($this->from, true));
		}
		
		if (!$this->fromname)
		{
			$this->fromname = $this->from;
		}
		else
		{
			$this->fromname = trim($_isso->unsanitize($this->fromname, true));
		}
		
		if (!$this->to)
		{
			$_isso->debug("email: no recipient -> not sending");
			return false;
		}
		else
		{
			$this->to = trim($_isso->unsanitize($this->to));
		}
		
		if (!$this->subject)
		{
			$_isso->debug("email: no subject -> not sending");
			return false;
		}
		else
		{
			$this->subject = trim($_isso->unsanitize($this->_fetch_first_line($this->subject), true));
		}
		
		if (!$this->body)
		{
			$_isso->debug("email: no body -> not sending");
			return false;
		}
		else
		{
			$this->body = $this->_convert_line_breaks($this->body);
			$this->body = trim($_isso->unsanitize($this->body, true));
		}
		
		$this->headers = $this->_convert_line_breaks($this->headers);
		$this->headers .= "From: \"{$this->fromname}\" <{$this->from}>\n";
		$this->headers .= "Return-Path: {$this->from}\n";
		$this->headers .= "X-Mailer: ISSO Mail Framework \$Revision$\n";
		$this->headers .= "Content-Type: text/plain; charset=\"iso-8859-1\"\n";
		$this->headers .= "Content-Transfer-Encoding: 7bit\n";
		
		if (mail($this->to, $this->subject, $this->body, trim($this->headers), "-f {$this->from}"))
		{
			$_isso->debug("email: sent -> good");
			return true;
		}
		else
		{
			$_isso->debug("email: sent -> error");
			return false;
		}
	}
	
	/**
	* Fetches the first line of a string
	*
	* @param	str		A string
	*
	* @return	str		The first line of the string
	*/
	function _fetch_first_line($string)
	{
		$string = $this->_convert_line_breaks($string);
		$broken = explode("\n", $string);
		return $broken[0];
	}
	
	/**
	* Changes line breaks into one format
	*
	* @param	str		Text
	* @param	str		New line break (default is UNIX format)
	*
	* @return	str		Text with one type of line break
	*/
	function _convert_line_breaks($text, $convert_to = "\n")
	{
		$text = trim($text);
		$text = str_replace(array("\r\n", "\r", "\n"), "\n", $text);
		$text = str_replace("\n", $convert_to, $text);
		return $text;
	}
}

/*=====================================================================*\
|| ###################################################################
|| # $HeadURL$
|| # $Id$
|| ###################################################################
\*=====================================================================*/
?>